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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT | Document Parties: HSBC BANK USA, NATIONAL ASSOCIATION | WELLS FARGO BANK, NA You are currently viewing:
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HSBC BANK USA, NATIONAL ASSOCIATION | WELLS FARGO BANK, NA

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 4/10/2007

POOLING AND SERVICING AGREEMENT, Parties: hsbc bank usa  national association , wells fargo bank  na
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<PAGE>

                                                                     Exhibit 4.1

                     MERRILL LYNCH MORTGAGE INVESTORS, INC.,
                                    Depositor

                             WELLS FARGO BANK, N.A.
                   Master Servicer and Securities Administrator

                                       and

                      HSBC BANK USA, NATIONAL ASSOCIATION,
                                     Trustee

                         POOLING AND SERVICING AGREEMENT

                            Dated as of March 1, 2007

                                   ----------

             Mortgage Pass-Through Certificates, MANA Series 2007-F1


<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                          <C>
ARTICLE I DEFINITIONS ...................................................      8
   Section 1.02   Accounting .............................................     65

ARTICLE II CONVEYANCE OF MORTGAGE LOANS; ORIGINAL ISSUANCE OF
           CERTIFICATES .................................................     65
   Section 2.01   Conveyance of Mortgage Loans to Trustee ................     65
   Section 2.02   Acceptance of Mortgage Loans by Trustee ................     68
   Section 2.03   Assignment of Interest in the Mortgage Loan Purchase
                 Agreement ..............................................     71
   Section 2.04   Substitution of Mortgage Loans .........................     72
   Section 2.05   Issuance of Certificates ...............................     74
   Section 2.06   Representations and Warranties Concerning the
                 Depositor ..............................................     74
   Section 2.07   Representations and Warranties Concerning the Master
                 Servicer and Securities Administrator ..................     75

ARTICLE III ADMINISTRATION AND SERVICING OF MORTGAGE LOANS ..............     76
   Section 3.01   Master Servicer ........................................     76
   Section 3.02   REMIC-Related Covenants ................................     78
   Section 3.03   Monitoring of Servicers ................................     78
   Section 3.04   Fidelity Bond ..........................................     79
   Section 3.05   Power to Act; Procedures ...............................     79
   Section 3.06   Due-on-Sale Clauses; Assumption Agreements .............     80
   Section 3.07   Release of Mortgage Files ..............................     80
   Section 3.08   Documents, Records and Funds in Possession of Master
                 Servicer To Be Held for Trustee ........................     81
   Section 3.09   Standard Hazard Insurance and Flood Insurance Policies .     82
   Section 3.10   Presentment of Claims and Collection of Proceeds .......     82
   Section 3.11   Maintenance of the Primary Mortgage Insurance
                 Policies ...............................................     83
   Section 3.12   Trustee to Retain Possession of Certain Insurance
                 Policies and Documents .................................     83
   Section 3.13   Realization Upon Defaulted Mortgage Loans ..............     84
   Section 3.14   Compensation for the Master Servicer ...................     84
   Section 3.15   REO Property ...........................................     84
   Section 3.16   Annual Statement as to Compliance ......................     85
   Section 3.17   Reports on Assessment of Compliance and Attestation ....     86
   Section 3.18   Periodic Filings .......................................     89
   Section 3.19   Compliance with Regulation AB ..........................     95
   Section 3.20   Servicing Rights Owner .................................     96

ARTICLE IV ACCOUNTS .....................................................     96
   Section 4.01   Protected Accounts .....................................     96
   Section 4.02   Master Servicer Collection Account .....................     98
</TABLE>


<PAGE>

<TABLE>
<S>                                                                          <C>
   Section 4.03   Permitted Withdrawals and Transfers from the Master
                 Servicer Collection Account ............................     99
   Section 4.04   Distribution Account ...................................    100
   Section 4.05   Permitted Withdrawals and Transfers from the
                  Distribution Account ...................................    101

ARTICLE V CERTIFICATES ..................................................    102
   Section 5.01   The Certificates .......................................    102
   Section 5.02   Certificate Register; Registration of Transfer and
                 Exchange of Certificates ...............................    103
   Section 5.03   Mutilated, Destroyed, Lost or Stolen Certificates ......    107
   Section 5.04   Persons Deemed Owners ..................................    108
   Section 5.05   Access to List of Certificateholders' Names and
                 Addresses ..............................................    108
   Section 5.06   Book-Entry Certificates ................................    108
   Section 5.07   Notices to Depository ..................................    109
   Section 5.08   Definitive Certificates ................................    109
   Section 5.09   Maintenance of Office or Agency ........................    110

ARTICLE VI PAYMENTS TO CERTIFICATEHOLDERS ...............................    110
   Section 6.01   Distributions ..........................................    110
   Section 6.02   Allocation of Realized Losses ..........................    118
   Section 6.03   Subordination ..........................................    120
   Section 6.04   Payments ...............................................    120
   Section 6.05   Statements to Certificateholders .......................    121
   Section 6.06   Compensating Interest Payments .........................    124
   Section 6.07   Allocation of Certain Interest Shortfalls ..............    124

ARTICLE VII THE MASTER SERVICER AND THE DEPOSITOR .......................    125
   Section 7.01   Liabilities of the Master Servicer .....................    125
   Section 7.02   Merger or Consolidation of the Master Servicer .........    125
   Section 7.03   Indemnification from the Master Servicer and the
                 Depositor ..............................................    125
   Section 7.04   Limitations on Liability of the Master Servicer and
                 Others .................................................    126
   Section 7.05   Master Servicer Not to Resign ..........................    127
   Section 7.06   Successor Master Servicer ..............................    127
   Section 7.07   Sale and Assignment of Master Servicing ................    127

ARTICLE VIII DEFAULT ....................................................    128
   Section 8.01   Events of Default ......................................    128
   Section 8.02   Trustee to Act; Appointment of Successor ...............    129
   Section 8.03   Notification to Certificateholders .....................    131
   Section 8.04   Waiver of Defaults .....................................    131
   Section 8.05   List of Certificateholders .............................    131

ARTICLE IX CONCERNING THE TRUSTEE AND THE SECURITIES ADMINISTRATOR ......    131
</TABLE>


                                       iii

<PAGE>

<TABLE>
<S>                                                                           <C>
   Section 9.01   Duties of Trustee ......................................    131
   Section 9.02   Certain Matters Affecting the Trustee and the
                 Securities Administrator ...............................    134
   Section 9.03   Trustee and Securities Administrator Not Liable for
                 Certificates or Mortgage Loans .........................    135
   Section 9.04   Trustee and Securities Administrator May Own
                  Certificates ...........................................    136
   Section 9.05   Trustee's and Securities Administrator's Fees and
                 Expenses ...............................................    136
   Section 9.06   Eligibility Requirements for Trustee and Securities
                 Administrator ..........................................    137
   Section 9.07   Insurance ..............................................    138
   Section 9.08   Resignation and Removal of the Trustee and Securities
                 Administrator ..........................................    138
   Section 9.09   Successor Trustee and Successor Securities Administrator    139
   Section 9.10   Merger or Consolidation of Trustee or Securities
                 Administrator ..........................................    139
   Section 9.11   Appointment of Co-Trustee or Separate Trustee ..........    140
   Section 9.12   Federal Information Returns and Reports to
                 Certificateholders; REMIC Administration ...............    141

ARTICLE X TERMINATION ...................................................    146
   Section 10.01 Termination upon Liquidation or Repurchase of all
                 Mortgage Loans .........................................    146
   Section 10.02 Final Distribution on the Certificates .................    147
   Section 10.03 Additional Termination Requirements ....................    148

ARTICLE XI MISCELLANEOUS PROVISIONS .....................................    149
   Section 11.01 Intent of Parties ......................................    149
   Section 11.02 Amendment ..............................................    149
   Section 11.03 Recordation of Agreement ...............................    151
   Section 11.04 Limitation on Rights of Certificateholders .............    151
   Section 11.05 Acts of Certificateholders .............................    152
   Section 11.06 Governing Law ..........................................    153
   Section 11.07 Notices ................................................    153
   Section 11.08 Severability of Provisions .............................    153
   Section 11.09 Successors and Assigns .................................    154
   Section 11.10 Article and Section Headings ...........................    154
   Section 11.11 Counterparts ...........................................    154
   Section 11.12 Notice to Rating Agencies ..............................    154

ARTICLE XII REMIC ADMINISTRATION ........................................    154
   Section 12.01 [Reserved] .............................................    154
   Section 12.02 Prohibited Transactions and Activities .................    154
   Section 12.03 Indemnification with Respect to Prohibited Transactions
                 or Loss of REMIC Status ................................    155
   Section 12.04 REO Property ...........................................    155
</TABLE>


                                       iv

<PAGE>

EXHIBITS

Exhibit A-1         - Form of Class A, IO, PO and Class M Certificates
Exhibit A-2         - Form of Class B Certificates
Exhibit A-3         - Form of Class A-R Certificate
Exhibit A-4           Form of Class P Certificate
Exhibit B           - Mortgage Loan Schedule
Exhibit C           - [Reserved]
Exhibit D           - Request for Release of Documents
Exhibit E-1         - Form of Transferee's Letter and Affidavit
Exhibit E-2         - Form of Transferor Certificate
Exhibit F-1         - Form of Transferor Representation Letter
Exhibit F-2         - Form of Investor Representation Letter
Exhibit F-3         - Form of Rule 144A Letter
Exhibit G           - Form of Custodial Agreement
Exhibit H           - [Reserved]
Exhibit I-1 to I-5 - Assignment Agreements
Exhibit J           - Mortgage Loan Purchase Agreement
Exhibit K            - Servicing Criteria To Be Addressed in Assessment of
                     Compliance
Exhibit L           - Form of Sarbanes-Oxley Certification
Exhibit M           - Form of Back-up Sarbanes-Oxley Certification
Exhibit N           - [Reserved]
Exhibit O            - Additional Disclosure Notification
Exhibit P           - Form of Item 1123 Certification of Servicer
Exhibit Q-1         - Additional Form 10-D Disclosure
Exhibit Q-2         - Additional Form 10-K Disclosure
Exhibit Q-3         - Form 8-K Disclosure Information


                                        v
<PAGE>

                         POOLING AND SERVICING AGREEMENT

     This Pooling and Servicing Agreement is dated as of March 1, 2007 (the
"Pooling and Servicing Agreement"), among MERRILL LYNCH MORTGAGE INVESTORS,
INC., as depositor (the "Depositor"), WELLS FARGO BANK, N.A., as master servicer
(in such capacity, the "Master Servicer") and as securities administrator (in
such capacity, the "Securities Administrator") and HSBC BANK USA, NATIONAL
ASSOCIATION, as trustee (the "Trustee").

                              PRELIMINARY STATEMENT

     The Depositor has acquired the Mortgage Loans from the Seller and at the
Closing Date is the owner of the Mortgage Loans and the other related property
being conveyed by the Depositor to the Trustee hereunder on behalf of the
Issuing Entity for inclusion in the Trust Fund. On the Closing Date, the
Depositor will acquire the Certificates from the Securities Administrator as
consideration for the Depositor's transfer to the Issuing Entity of the Mortgage
Loans and the other related property constituting that portion of the Trust Fund
relating to the Certificates. The Depositor has duly authorized the execution
and delivery of this Agreement to provide for the conveyance to the Issuing
Entity of the Mortgage Loans and the other related property constituting that
portion of the Trust Fund relating to the Certificates. All covenants and
agreements made by the Seller in the Mortgage Loan Purchase Agreement and in
this Agreement and all covenants and agreements made by the Depositor, the
Trustee, the Securities Administrator and the Master Servicer herein with
respect to the Mortgage Loans and the other related property constituting the
portion of the Trust Fund relating to the Certificates are for the benefit of
the Holders from time to time of the Certificates. The Depositor, the Trustee,
the Securities Administrator and the Master Servicer are entering into this
Agreement, and the Trustee on behalf of the Issuing Entity is accepting the
Trust Fund created hereby, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged.

     As provided herein, the Securities Administrator shall elect that the Trust
Fund (other than amounts payable to the Class P Certificates) be treated for
federal income tax purposes as comprising three real estate mortgage investment
conduits (each a "REMIC" or, in the alternative, "REMIC 1," "REMIC 2" and the
"Upper Tier REMIC," respectively) in a tiered structure. The Certificates
created under this Agreement, other than the Class A-R Certificate and the Class
P Certificate, shall represent ownership of regular interests in the Upper Tier
REMIC. The Class A-R Certificate represents the sole class of residual interest
in each of REMIC 1, REMIC 2 and the Upper Tier REMIC.

     The Upper Tier REMIC shall hold as its assets the several classes of
uncertificated REMIC 2 Regular Interests. REMIC 2 shall hold as its assets the
several classes of uncertificated REMIC 1 Regular Interests. REMIC 1 shall hold
as its assets the property of the Trust Fund other than (i) the REMIC 1
Interests and the REMIC 2 Interests and (ii) the amounts payable to the Class P
Certificates.

     Each Upper Tier REMIC Regular Interest is hereby designated as a regular
interest in the Upper Tier REMIC for purposes of the REMIC Provisions. Each
REMIC 2 Regular Interest is hereby designated as a regular interest in REMIC 2
for purposes of the REMIC Provisions. Each

<PAGE>

REMIC 1 Regular Interest is hereby designated as a regular interest in REMIC 1
for purposes of the REMIC Provisions.

     The Class LT1-R Interest is hereby designated as the sole class of residual
interest in REMIC 1 for purposes of the REMIC Provisions. The Class LT2-R
Interest is hereby designated as the sole class of residual interest in REMIC 2
for purposes of the REMIC Provisions. The Class UT-R Interest is hereby
designated as the sole class of residual interest in the Upper Tier REMIC for
purposes of the REMIC Provisions. The Class A-R Certificate shall represent the
Class LT1-R Interest, the Class LT2-R Interest and the Class UT-R Interest. The
entitlement of the Class A-R Certificate to payments in respect of principal and
interest shall be attributable to its representation of the Class UT-R Interest.

THE REMIC 1 INTERESTS

The following table sets forth (or describes) the class designation, interest
rate, initial principal balance, and related Subgroup for each class of REMIC 1
Interests:

<TABLE>
<CAPTION>
                     Principal    Interest            Related Mortgage groups
Class Designation     Balance       Rate                 or Mortgage Group
-----------------    ---------    --------    --------------------------------------
<S>                  <C>          <C>         <C>
LT11A                    (2)          (11)    Subgroup 1
LT11B                    (3)          (12)    Subgroup 1
LT12A                    (4)          (11)    Subgroup 2
LT12B                    (5)          (13)    Subgroup 2
LT13A                    (6)          (11)    Subgroup 3
LT13B                    (7)          (14)    Subgroup 3
LT14A                    (8)          (11)    Subgroup 4
LT14B                    (9)          (15)    Subgroup 4
LT1Z                    (10)          (11)    Subgroup 1, Subgroup 2, Subgroup 3 and
                                           Subgroup 4
LT1PO                   (16)      0.00%       Subgroup 1, Subgroup 3
LT1IO1                  (17)      6.00%       Subgroup 2
LT1IO2                  (18)      6.25%       Subgroup 4
LT1-R                     (1)           (1)    N/A
</TABLE>

----------
(1)   The Class LT1-R Interest represents the sole class of residual interest in
     REMIC 1 and has neither a principal amount nor an interest rate. The Class
     LT1-R Interest shall be represented by the Class A-R Certificate.

(2)   The initial principal balance of the Class LT11A Interest shall equal 1% of
     the excess of (x) the initial Non-PO Subgroup 1 Allocated Amount over (y)
     the initial principal balances of the Subgroup 1 Certificates.

(3)   The initial principal balance of the Class LT11B Interest shall equal 1% of
     the initial Non-PO Subgroup 1 Allocated Amount.

(4)   The initial principal balance of the Class LT12A Interest shall equal 1% of
     the excess of (x) the initial Subgroup 2 Principal Balance over (y) the
     initial principal balances of the Subgroup 2 Certificates.

(5)   The initial principal balance of the Class LT12B Interest shall equal 1% of
     the initial Subgroup 2 Principal Balance.

(6)   The initial principal balance of the Class LT13A Interest shall equal 1% of
     the excess of (x) the initial Non-PO Subgroup 3 Allocated Amount over (y)
     the initial principal balances of the Subgroup 3 Certificates.


                                      -2-

<PAGE>

(7)   The initial principal balance of the Class LT13B Interest shall equal 1% of
     the initial Non-PO Subgroup 3 Allocated Amount.

(8)   The initial principal balance of the Class LT14A Interest shall equal 1% of
     the excess of (x) the initial Subgroup 4 Principal Balance over (y) the
     initial principal balances of the Subgroup 4 Certificates.

(9)   The initial principal balance of the Class LT14B Interest shall equal 1% of
     the initial Subgroup 4 Principal Balance.

(10) The initial principal balance of the Class LT1Z Interest shall equal the
     excess of (x) the sum of the initial Non-PO Subgroup 1 Allocated Amount,
     the initial Subgroup 2 Principal Balance, the initial Non-PO Subgroup 3
     Allocated Amount and the initial Subgroup 4 Principal Balance over (y) the
     sum of the initial principal amounts of each of the REMIC 1 Regular
     Interests with a designation ending in "A" or "B".

(11) The Class LT11A Interest, the Class LT12A Interest, the Class LT13A
     Interest, the Class LT14A Interest and the Class LT1Z Interest shall have
     an interest rate for each Distribution Date (and the related Accrual
     Period) equal to the weighted average of the Subgroup 1 Remittance Rate,
     the Subgroup 2 Remittance Rate, the Subgroup 3 Remittance Rate and the
     Subgroup 4 Remittance Rate (weighted based on the Non-PO Subgroup 1
     Allocated Amount, the Subgroup 2 Principal Balance, the Non-PO Subgroup 3
     Allocated Amount and the Subgroup 4 Principal Balance, respectively).

(12) The Class LT11B Interest shall have an interest rate for any Distribution
     Date (and the related Accrual Period) equal to the Subgroup 1 Remittance
     Rate.

(13) The Class LT12B Interest shall have an interest rate for any Distribution
      Date (and the related Accrual Period) equal to the Subgroup 2 Remittance
     Rate.

(14) The Class LT13B Interest shall have an interest rate for any Distribution
     Date (and the related Accrual Period) equal to the Subgroup 3 Remittance
     Rate.

(15) The Class LT14B Interest shall have an interest rate for any Distribution
     Date (and the related Accrual Period) equal to the Subgroup 4 Remittance
     Rate.

(16) The initial principal balance of the Class LT1PO Interest shall equal the
     initial principal amount of the Class PO Certificates.

(17) The Class LT1IO1 Interest is an interest-only interest, has no principal
     balance, is not entitled to payments of principal and will bear interest on
     its notional amount. The notional amount of the Class LT1IO1 Interest shall
     equal the Class IO-1 Notional Amount.

(18) The Class LT1IO2 Interest is an interest-only interest, has no principal
     balance, is not entitled to payments of principal and will bear interest on
     its notional amount. The notional amount of the Class LT1IO2 Interest shall
     equal the Class IO-2 Notional Amount.

     On each Distribution Date, the Securities Administrator shall first pay or
charge as an expense of REMIC 1 all expenses of the Issuing Entity for such
Distribution Date.

     Interest shall be payable to, and shortfalls and losses are allocable to,
the Class LT1IO1 Interest as such amounts are payable or allocable to Class IO-1
Certificates. Interest shall be payable to, and shortfalls and losses are
allocable to, the Class LT1IO2 Interest as such amounts are payable or allocable
to Class IO-2 Certificates.

     Principal shall be payable to, and shortfalls, losses, prepayments and
increases in principal amount related to Subsequent Recoveries are allocable to,
the Class LT1PO Interest as such amounts are payable or allocable to the Class
PO Certificates.


                                      -3-

<PAGE>

     After the allocations and distributions are made pursuant to the two
immediately preceding paragraphs, principal distributions shall be deemed to be
made and Realized Losses shall be deemed allocated to the REMIC 1 Interests
first, so as to keep the uncertificated principal balance of each REMIC 1
Interest ending with the designation "A" equal to 1% of the excess of (x) the
Non-PO Subgroup 1 Allocated Amount (in the case of the Class LT11A Interest),
the Subgroup 2 Principal Balance (in the case of the Class LT12A Interest), the
Non-PO Subgroup 3 Allocated Amount (in the case of the Class LT13A Interest) or
the Subgroup 4 Principal Balance (in the case of the Class LT14A Interest) over
(y) the aggregate class principal amounts of the Subgroup 1 Certificates (in the
case of the Class LT11A Interest), the Subgroup 2 Certificates (in the case of
the Class LT12A Interest), the Subgroup 3 Certificates (in the case of the Class
LT13A Interest), or the Subgroup 4 Certificates (in the case of the Class LT14A
Interest) (except that if 1% of any such excess is greater than the principal
amount of the corresponding REMIC 1 Interest ending with the designation "A",
the least amount of principal and Realized Losses shall be distributed and
allocated to such REMIC 1 Interests such that the REMIC 1 Subordinate Balance
Ratio is maintained); second, to each REMIC 1 Interest ending with the
designation "B" so as to keep the uncertificated principal balance of each such
REMIC 1 Interest equal to 1% of the Non-PO Subgroup 1 Allocated Amount (in the
case of the Class LT11B Interest), the Subgroup 2 Principal Balance (in the case
of the Class LT12B Interest), the Non-PO Subgroup 3 Allocated Amount (in the
case of the Class LT13B Interest) or the Subgroup 4 Principal Balance (in the
case of the Class LT14B Interest) and finally, all remaining principal amounts
and Realized Losses shall be distributed and allocated in respect of the Class
LT1Z Interest.

     If on any Distribution Date the Class Certificate Balance of any Class of
Certificates (other than the Class PO Certificates) is increased due to
Subsequent Recoveries pursuant to the definition of "Class Certificate Balance",
then there shall be an equivalent aggregate increase in the principal amounts of
the REMIC 1 Regular Interests, with such increase allocated (before the making
of distributions and the allocation of losses on the REMIC 1 Regular Interests
on such Distribution Date) among the REMIC 1 Regular Interests as follows: (i)
first, to each REMIC 1 Interest ending with the designation "B" so as to keep
the uncertificated principal balance of each such REMIC 1 Interest equal to 1%
of the Non-PO Subgroup 1 Allocated Amount (in the case of the Class LT11B
Interest), the Subgroup 2 Principal Balance (in the case of the Class LT12B
Interest), the Non-PO Subgroup 3 Allocated Amount (in the case of the Class
LT13B Interest) or the Subgroup 4 Principal Balance (in the case of the Class
LT14B Interest), (ii) second, to each REMIC 1 Regular Interest ending with the
designation "A", so that the uncertificated principal balance of each REMIC 1
Regular Interest ending with the designation "A" is as close as possible to (but
does not exceed) 1% of the excess of (x) the Non-PO Subgroup 1 Allocated Amount
(in the case of the Class LT11A Interest), the Subgroup 2 Principal Balance (in
the case of the Class LT12A Interest), the Non-PO Subgroup 3 Allocated Amount
(in the case of the Class LT13A Interest) or the Subgroup 4 Principal Balance
(in the case of the Class LT14A Interest) over (y) the aggregate class principal
amounts of the Subgroup 1 Certificates (in the case of the Class LT11A
Interest), the Subgroup 2 Certificates (in the case of the Class LT12A
Interest), the Subgroup 3 Certificates (in the case of the Class LT13A
Interest), or the Subgroup 4 Certificates (in the case of the Class LT14A
Interest); provided, however, that (a) the REMIC 1 Subordinate Balance Ratio is
maintained and (b) amounts allocated to any REMIC 1 Regular Interest pursuant to
this clause (ii) shall not exceed the


                                      -4-

<PAGE>

amount of any previous realized losses allocated to such REMIC 1 Regular
Interest not previously offset by distributions or increases in the principal
amount of such REMIC 1 Regular Interest and (iii) finally, all remaining amounts
to the Class LT1Z Interest.

     All computations with respect to the REMIC 1 Interests shall be computed to
eight decimal places.

THE REMIC 2 INTERESTS

     The following table sets forth (or describes) the class designation,
interest rate, initial principal amount, and corresponding class of certificates
or components for each class of REMIC 2 Interests:

<TABLE>
<CAPTION>
                    Principal    Interest
Class Designation     Amount        Rate      Corresponding Classes of Certificates
-----------------    ---------    --------    -------------------------------------
<S>                  <C>          <C>         <C>
LT21A1                  (2)        5.50%      Class 1-A1
LT21A2                  (2)        6.00%      Class 1-A2
LT22A1                  (2)        6.00%      Class 2-A1
LT22A2                  (2)         6.00%      Class 2-A2
LT22A3                  (2)        6.00%      Class 2-A3
LT22A4                  (2)        7.00%      Class 2-A4, Class 2-A5
LT22A6                  (2)        6.00%      Class 2-A6
LT22A7                  (2)        6.00%      Class 2-A7
LT22A8                  (2)        6.00%      Class 2-A8
LT22A9                  (2)        6.00%      Class 2-A9
LT22A10                 (2)        6.00%      Class 2-A10
LT2M1                   (2)            (5)    Class M-1
LT2M2                   (2)            (5)     Class M-2
LT2M3                   (2)            (5)    Class M-3
LT2B1                   (2)            (5)    Class B-1
LT2B2                   (2)            (5)    Class B-2
LT2B3                   (2)            (5)    Class B-3
LT2AR                   (2)        5.50%      Class A-R
LT2PO                   (2)        0.00%      Class PO
LT2IO1                  (3)        6.00%      Class IO-1
LT2IO2                  (4)        6.25%      Class IO-2
LT2-R                   (1)            (1)    N/A
</TABLE>

----------
(1)   The Class LT2-R Interest represents the sole class of residual interest in
     REMIC 2 and has neither a principal amount nor an interest rate. The Class
     LT2-R Interest shall be represented by the Class A-R Certificate.

(2)   The initial principal amount of each of these interests shall be equal to
     the initial principal amount of the Corresponding Classes of Certificates
     (disregarding the notional amount of any class of "interest-only"
     certificates).

(3)   The Class LT2IO1 Interest is an interest-only interest, has no principal
     balance, is not entitled to payments of principal and will bear interest on
     its notional amount. The notional amount of the Class LT12IO1 Interest
     shall equal the Class IO-1 Notional Amount.

(4)   The Class LT2IO2 Interest is an interest-only interest, has no principal
     balance, is not entitled to payments of principal and will bear interest on
     its notional amount. The notional amount of the Class LT12IO2 Interest
     shall equal the Class IO-2 Notional Amount.

(5)   Each of the Class LT2M1 Interest, the Class LT2M2 Interest, the Class LT2M3
     Interest, the Class LT2B1 Interest, the Class LT2B2 Interest and the Class
     LT2B3 Interest shall have an interest rate for each Distribution Date (and
     the related


                                      -5-

<PAGE>

     Accrual Period) equal to the Certificate Rate for the Subordinate
     Certificates which is the numerical equivalent of the weighted average of
     the interest rates on the Class LT11A Interest, the Class LT12A Interest,
     the Class LT13A Interest and the Class LT14A Interest (treating, for
     purposes of computing this weighted average, the Class LT11A Interest as
     subject to a cap and a floor equal to the interest rate on the Class LT11B
     Interest, the Class LT12A Interest as subject to a cap and a floor equal to
     the interest rate on the Class LT12B Interest, the Class LT13A Interest as
     subject to a cap and a floor equal to the interest rate on the Class LT13B
     Interest, and the Class LT14A Interest as subject to a cap and a floor
     equal to the interest rate on the Class LT14B Interest).

Payments shall be deemed made and Realized Losses and shortfalls shall be
allocated among the REMIC 2 Interests in the same manner as such payments are
made or such Realized Losses and shortfalls are allocated among the
Corresponding Classes of Certificates (disregarding Section 6.01(a)(v)).

     The principal amount of each REMIC 2 Regular Interest shall be increased on
any Distribution Date on which, and in the amount by which, the Class
Certificate Balance of any Corresponding Class of Certificates is increased due
to Subsequent Recoveries pursuant to the definition of "Class Certificate
Balance."

THE CERTIFICATES

     The following table sets forth (or describes) the Class designation,
Certificate Rate, initial Class Certificate Balance or initial notional amount,
and minimum denomination for each Class of Certificates comprising interests in
the Trust Fund created hereunder.

<TABLE>
<CAPTION>
                               Initial Class
                            Certificate Balance
   Class       Certificate    or Initial Notional     Minimum Denominations
Designation        Rate              Amount          or Percentage Interest
-----------    -----------    -------------------    ----------------------
<S>            <C>            <C>                    <C>                
Class 1-A1       5.50%           $12,553,900               $25,000.00
Class 1-A2       6.00%            $67,752,000               $25,000.00
Class 2-A1       6.00%           $45,502,000               $25,000.00
Class 2-A2       6.00%           $ 2,173,000               $25,000.00
Class 2-A3       6.00%           $ 5,629,000               $25,000.00
Class 2-A4            (1)         $70,255,000               $25,000.00
Class 2-A5           (2)         $70,255,000(3)            $25,000.00
Class 2-A6       6.00%           $81,007,000               $25,000.00
Class 2-A7       6.00%           $99,008,000               $25,000.00
Class 2-A8       6.00%           $ 9,673,000               $25,000.00
Class 2-A9       6.00%           $21,077,000               $25,000.00
Class 2-A10      6.00%           $ 2,989,000               $25,000.00
Class IO-1       6.00%           $ 6,505,282(3)             $25,000.00
Class IO-2       6.25%           $22,236,988(3)            $25,000.00
Class PO             (4)         $ 1,034,336               $25,000.00
Class M-1            (5)         $13,349,000               $25,000.00
Class M-2            (5)         $ 4,449,000               $25,000.00
Class M-3            (5)         $ 3,114,000               $25,000.00
Class B-1            (5)         $ 2,225,000               $25,000.00
Class B-2            (5)         $ 1,557,000               $25,000.00
Class B-3            (5)         $ 1,556,960               $25,000.00
Class A-R        5.50%           $        100               $       100
Class P           N/A                    N/A(6)                   100%
</TABLE>


                                      -6-

<PAGE>

(1)   The Certificate Rate for the Class 2-A4 Certificates will equal one-month
     LIBOR plus 0.320% with respect to any Distribution Date.

(2)   The Certificate Rate for the Class 2-A5 Certificates will equal 6.680%
     minus one-month LIBOR with respect to any Distribution Date.

(3)   The Class 2-A5, Class IO-1 and Class IO-2 Certificates are interest-only
     certificates. The Class 2-A5, Class IO-1 and Class IO-2 Certificates will
     accrue interest on their class notional amount.

(4)   The Class PO Certificates are principal-only certificates and are not
     entitled to payments of interest.

(5)   The Certificate Rate with respect to any Distribution Date (and the related
     Accrual Period) will equal the fraction, expressed as a percentage, the
     numerator of which will equal the sum of (i) the product of (x) the
     Subgroup 1 Remittance Rate and (y) the Subgroup 1 Subordinated Amount, (ii)
     the product of (x) the Subgroup 2 Remittance Rate and (y) the Subgroup 2
     Subordinated Amount, (iii) the product of (x) the Subgroup 3 Remittance
     Rate and (y) the Subgroup 3 Subordinated Amount and (iv) the product of (x)
     the Subgroup 4 Remittance Rate and (y) the Subgroup 4 Subordinated Amount
     and the denominator of which will equal the sum of the Subgroup 1
     Subordinated Amount, the Subgroup 2 Subordinated Amount, the Subgroup 3
     Subordinated Amount and the Subgroup 4 Subordinated Amount.

(6)   The Class P Certificates will be entitled to receive Prepayment Charges on
     the Prepayment Charge Mortgage Loans.

     The Class PO Certificates consist of two components, referred to herein as
the "Class PO Component One" and "Class PO Component Two."

     As of the Cut-off Date, the Mortgage Loans had an aggregate Stated
Principal Balance of $444,904,297.48.

     In consideration of the mutual agreements herein contained, the Depositor,
the Trustee, Securities Administrator and the Master Servicer hereby agree as
follows:


                                      -7-
<PAGE>

                                     ARTICLE I
                                   DEFINITIONS

     Whenever used in this Agreement, the following words and phrases, unless
otherwise expressly provided or unless the context otherwise requires, shall
have the meanings specified in this Article.

     10-K Filing Deadline: As defined in Section 3.18(h).

     Accepted Master Servicing Practices: With respect to any Mortgage Loan, as
applicable, either (x) those customary mortgage master servicing practices of
prudent mortgage servicing institutions that master service mortgage loans of
the same type and quality as such Mortgage Loan in the jurisdiction where the
related Mortgaged Property is located, to the extent applicable to the Trustee
or the Master Servicer (except in its capacity as successor to a Servicer), or
(y) as provided in the applicable Servicing Agreement, to the extent applicable
to any Servicer, but in no event below the standard set forth in clause (x).

     Account: The Master Servicer Collection Account, Distribution Account and
any Protected Account as the context may require.

     Accountant's Attestation: As defined in Section 3.17(b).

     Accrual Period: With respect to any Distribution Date, the calendar month
immediately preceding the month in which the related Distribution Date occurs.
Interest shall accrue on all Classes of Certificates and REMIC 1 Regular
Interests on the basis of a 360-day year consisting of twelve 30-day months.

     Accrued Certificate Interest: With respect to each Class of Certificates,
an amount equal to the interest accrued during the related Accrual Period on the
Class Certificate Balance thereof at the then-applicable Certificate Rate.
Accrued Certificate Interest on any Class of Certificates will be reduced by the
amount of (i) Prepayment Interest Shortfalls (to the extent not offset by the
related Servicer or Master Servicer with a payment of Compensating Interest as
provided in Section 6.06), (ii) the interest portion of Realized Losses
Payments' allocated to such Class of Certificates pursuant to Section 6.02 and
(iii) any other interest shortfalls not covered by the subordination provided by
the Class M Certificates and Class B Certificates, including shortfalls as a
result of the Relief Act or similar legislation or regulations, with all such
reductions allocated among all of the Certificates in proportion to their
respective amounts of Accrued Certificate Interest payable on such Distribution
Date which would have resulted absent such reductions.

     Additional Disclosure Notification: As defined in Section 3.18(b).

     Additional Form 10-D Disclosure: As defined in Section 3.18(e).

     Additional Form 10-K Disclosure: As defined in Section 3.18(h).

     Adverse REMIC Event: As defined in Section 9.12(g).


                                       -8-

<PAGE>

     Affiliate: As to any Person, any other Person controlling, controlled by or
under common control with such Person. "Control" means the power to direct the
management and policies of a Person, directly or indirectly, whether through
ownership of voting securities, by contract or otherwise. "Controlled" and
"Controlling" have meanings correlative to the foregoing. The Master Servicer
may conclusively presume that a Person is not an Affiliate of another Person
unless a Responsible Officer of the Master Servicer has actual knowledge to the
contrary.

     Aggregate Subordinated Percentage: The meaning set forth in Section
6.01(b)(x)(A) hereof.

     Agreement: This Pooling and Servicing Agreement, including the exhibits
hereto, and all amendments hereof and supplements hereto.

     Applicable Credit Rating: For any long-term deposit or security, a credit
rating of AAA in the case of S&P or Aaa in the case of Moody's. For any
short-term deposit or security, a rating of A-l+ in the case of S&P or P-1 in
the case of Moody's.

     Appraised Value: For any Mortgaged Property related to a Mortgage Loan, the
amount set forth as the appraised value of such Mortgaged Property in an
appraisal made for the mortgage originator in connection with its origination of
the related Mortgage Loan.

     Assessment of Compliance: As defined in Section 3.17(a).

     Assignment: An assignment of the Mortgage, notice of transfer or equivalent
instrument, in recordable form, sufficient under the laws of the jurisdiction
wherein the related Mortgaged Property is located to reflect of record the sale
of the Mortgage Loan to the Trustee for the benefit of Certificateholders, which
assignment, notice of transfer or equivalent instrument may be in the form of
one or more blanket assignments covering Mortgages secured by Mortgaged
Properties located in the same county, if permitted by law and accompanied by an
Opinion of Counsel to that effect.

     Assignment Agreements: The CitiMortgage Assignment Agreement, the IndyMac
Assignment Agreement, the PHH Assignment Agreement, the Wachovia Assignment
Agreement and the Wilshire Servicing Agreement, which are attached hereto as
Exhibits I-1, I-2, I-3, I-4 and I-5 respectively.

     Auction: The one-time auction conducted by the Securities Administrator, as
described in Section 10.01(b) hereof.

     Available Distribution Amount: As to each Mortgage Group or, as the context
requires, all Mortgage Groups, on any Distribution Date, an amount equal to the
amount on deposit in the Master Servicer Collection Account with respect to such
Mortgage Group as of the close of business two Business Days immediately
preceding the related Distribution Date (but prior to making any deposits into
the Certificate Account on such date) except:

     (a) amounts received on particular Mortgage Loans in such Mortgage Group as
late payments or other recoveries of principal or interest (including any
Subsequent Recoveries,


                                      -9-

<PAGE>

Liquidation Proceeds, Insurance Proceeds and condemnation awards) and respecting
which the applicable Servicer previously made an unreimbursed Monthly Advance of
such amounts;

     (b) reimbursement for Nonrecoverable Advances and other amounts permitted
to be withdrawn by the Servicers pursuant to Section 4.03 from, or not required
to be deposited in, the Master Servicer Collection Account attributable, in each
case, to Mortgage Loans in such Mortgage Group;

     (c) amounts representing the applicable Servicing Fee attributable in each
case to the Mortgage Loans in such Mortgage Group with respect to such
Distribution Date;

     (d) amounts representing all or part of a Monthly Payment with respect to a
Mortgage Loan in such Mortgage Group due (i) after the related Due Period or
(ii) on or prior to the Cut-off Date;

     (e) all Repurchase Proceeds, Principal Prepayments, Liquidation Proceeds,
Insurance Proceeds, Subsequent Recoveries and condemnation awards with respect
to Mortgage Loans in such Mortgage Group received after the related Principal
Prepayment Period, and all related payments of interest representing interest
for any period of time after the last day of the related Due Period for such
Mortgage Loans; and

     (f) all income from eligible investments held in the Master Servicer
Collection Account for the account of the Servicers.

     Back-Up Certification: As defined in Section 3.18(k).

     Bankruptcy Code: The United States Bankruptcy Code, as amended as codified
in 11 U.S.C. Sections 101-1330.

     Book-Entry Certificates: Any of the Certificates that shall be registered
in the name of the Depository or its nominee, the ownership of which is
reflected on the books of the Depository or on the books of a Person maintaining
an account with the Depository (directly, as a Depository Participant, or
indirectly, as an indirect participant in accordance with the rules of the
Depository and as described in Section 5.02 hereof). On the Closing Date, the
Certificates (other than the Class A-R Certificate and the Private Certificates)
shall be Book-Entry Certificates.

     Business Day: Any day other than (i) a Saturday or a Sunday, or (ii) a day
on which the New York Stock Exchange or Federal Reserve is closed or on which
banking institutions in the jurisdiction in which the Trustee, the Master
Servicer, any Servicer or the Securities Administrator are authorized or
obligated by law or executive order to be closed.

     Carry-Over Subordinated Principal Amount: As of any Distribution Date, with
respect to any Class of Subordinate Certificates, an amount, if any, equal to
the amount of principal distributable to such Class on any prior Distribution
Date that has not been so distributed.


                                      -10-

<PAGE>

     Certificate: Any mortgage pass-through certificate issued pursuant to this
Agreement, evidencing a beneficial ownership interest in that portion of the
Trust Fund related to the Mortgage Loans, signed and countersigned by the
Securities Administrator.

     Certificate Group: Each of the Group I Certificates and Group II
Certificates.

     Certificate Owner: With respect to each Book-Entry Certificate, any
beneficial owner thereof.

     Certificate Rate: The per annum rate of interest borne by each Class of
Certificates (other than the Class PO Certificates), which (i) with respect to
the Class 1-A1 and Class A-R Certificates will be 5.50%, (ii) with respect to
the case of the Class 1-A2, Class 2-A1, Class 2-A2, Class 2-A3, Class 2-A6,
Class 2-A7, Class 2-A8, Class 2-A9, Class 2A-10 and Class IO-1 Certificates will
be 6.00%, (iii) with respect to the Class 2-A4 Certificates will equal one-month
LIBOR plus 0.320%, (iv) with respect to the Class 2-A5 Certificates, will equal
6.680% minus one-month LIBOR (v) with respect to the Class IO-2 Certificates
will be 6.25% and (vi) with respect to each Class of Subordinate Certificates,
will equal a fraction, expressed as a percentage, the numerator of which will
equal the sum of (a) the product of (x) the Subgroup 1 Remittance Rate and
(y) the Subgroup 1 Subordinated Amount, (b) the product of (x) the Subgroup 2
Remittance Rate and (y) the Subgroup 2 Subordinated Amount, (c) the product of
(x) the Subgroup 3 Remittance Rate and (y) the Subgroup 3 Subordinated Amount
and (d) the product of (x) the Subgroup 4 Remittance Rate and (y) the Subgroup 4
Subordinated Amount and the denominator of which will equal the sum of the
Subgroup 1 Subordinated Amount, the Subgroup 2 Subordinated Amount, the Subgroup
3 Subordinated Amount and the Subgroup 4 Subordinated Amount. The minimum
Certificate Rates for the Class 2-A4 and Class 2-A5 Certificates will be 0.320%
and 0.000%, respectively, and the maximum Certificate Rates for the Class 2-A4
and Class 2-A5 Certificates will be 7.000% and 6.680%, respectively.

     Certificate Register: The register maintained pursuant to Section 5.02
hereof.

     Certificate Subgroup: Each of the Subgroup 1 Certificates, Subgroup 2
Certificates, Subgroup 3 Certificates and Subgroup 4 Certificates.

     Certificateholder or Holder: The Person in whose name a Regular Certificate
is registered in the Certificate Register, except that a Disqualified
Organization or non-U.S. Person shall not be a Holder of the Class A-R
Certificate for any purpose hereof.

     Certification Parties: As defined in Section 3.18(k).

     Certifying Person: As defined in Section 3.18(k).

     CitiMortgage: CitiMortgage, Inc.

     CitiMortgage Assignment Agreement: The Assignment, Assumption and
Recognition Agreement, dated as of March 1, 2007, among CitiMortgage, the
Depositor and the Seller pursuant to which the CitiMortgage Servicing Agreement
and the rights of the Seller thereunder


                                      -11-

<PAGE>

(other than the rights to enforce the representations and warranties with
respect to the CitiMortgage Loans) were assigned to the Depositor for the
benefit of the Certificateholders.

     CitiMortgage Loans: The Mortgage Loans serviced by CitiMortgage pursuant to
the CitiMortgage Servicing Agreement.

     CitiMortgage Servicing Agreement: The Mortgage Servicing Purchase and Sale
Agreement dated as of September 1, 2006, between CitiMortgage as seller and MLML
as purchaser, as at any time in effect.

     Class: Collectively, Certificates which have the same priority of payment
and bear the same class designation and the form of which is identical except
for variation in the Percentage Interest evidenced thereby.

     Class 1-A1 Certificate: Any one of the Class 1-A1 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 1-A1 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 1-A1 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 1-A1 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 1-A1 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 1-A1 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 1-A1 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 1-A1 Interest Accrual Amount over the
amount actually distributed to the Class 1-A1 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(A).

     Class 2-A1 Certificate: Any one of the Class 2-A1 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 2-A1 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A1 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A1 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A1 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 2-A1 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A1 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A1 Interest Accrual Amount over the
amount actually distributed to the Class 2-A1 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(D).


                                      -12-

<PAGE>

     Class 2-A2 Certificate: Any one of the Class 2-A2 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 2-A2 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A2 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A2 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A2 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 2-A2 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A2 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A2 Interest Accrual Amount over the
amount actually distributed to the Class 2-A2 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(E).

     Class 2-A3 Certificate: Any one of the Class 2-A3 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 2-A3 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A3 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A3 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A3 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 2-A3 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A3 Lockout Percentage: For any Distribution Date through March
2012, will equal 0% and for any Distribution Date thereafter will equal (a) for
any Distribution Date from April 2012 through March 2013, 30%, (b) for any
Distribution Date from April 2013 through March 2014, 40%, (c) for any
Distribution Date from April 2014 through March 2015, 60%, (d) for any
Distribution Date from April 2015 through March 2016, 80% and (e) for any
Distribution Date after March 2016, 100%.

     Class 2-A3 Lockout Principal Distribution Amount: With respect to any
Distribution Date, will equal the product of (i) the Class 2-A3 Lockout
Percentage, (ii) the Class 2-A3 Priority Percentage and (iii) the Non-PO
Subgroup 3 Optimal Principal Amount.

     Class 2-A3 Priority Percentage: For any Distribution Date, the percentage
equivalent of the fraction which the numerator is the Class 2-A3 Certificate
balance immediately prior to such Distribution Date and the denominator of
which is equal to the aggregate class certificate balance of the Class 2-A1,
Class 2-A2, Class 2-A3 and Class 2-A10 Certificates immediately prior to such
Distribution Date.


                                      -13-

<PAGE>

     Class 2-A3 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A3 Interest Accrual Amount over the
amount actually distributed to the Class 2-A3 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(F).

     Class 2-A4 Certificate: Any one of the Class 2-A4 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 2-A4 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A4 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A4 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A4 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 2-A4 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A4 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A4 Interest Accrual Amount over the
amount actually distributed to the Class 2-A4 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(G).

     Class 2-A5 Certificate: Any one of the Class 2-A5 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 2-A5 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A5 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A5 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A5 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 2-A5 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A5 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A5 Interest Accrual Amount over the
amount actually distributed to the Class 2-A5 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(H).

     Class 2-A6 Certificate: Any one of the Class 2-A6 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 2-A6 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A6 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A6 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A6 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any


                                      -14-

<PAGE>

interest shortfall resulting from the Relief Act allocated to the Class 2-A6
Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A6 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A6 Interest Accrual Amount over the
amount actually distributed to the Class 2-A6 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(I).

     Class 2-A7 Certificate: Any one of the Class 2-A7 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 2-A7 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A7 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A7 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A7 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 2-A7 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A7 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A7 Interest Accrual Amount over the
amount actually distributed to the Class 2-A7 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(J).

     Class 2-A8 Certificate: Any one of the Class 2-A8 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 2-A8 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A8 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A8 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A8 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 2-A8 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A8 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A8 Interest Accrual Amount over the
amount actually distributed to the Class 2-A8 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(K).

     Class 2-A9 Certificate: Any one of the Class 2-A9 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.


                                      -15-

<PAGE>

     Class 2-A9 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A9 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A9 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A9 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 2-A9 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A9 Lockout Percentage: For any Distribution Date through March
2012, will equal 0% and for any Distribution Date thereafter will equal (a) for
any Distribution Date from April 2012 through March 2013, 30%, (b) for any
Distribution Date from April 2013 through March 2014, 40%, (c) for any
Distribution Date from April 2014 through March 2015, 60%, (d) for any
Distribution Date from April 2015 through March 2016, 80% and (e) for any
Distribution Date after March 2016, 100%.

     Class 2-A9 Lockout Principal Distribution Amount: With respect to any
Distribution Date, will equal the product of (i) the Class 2-A9 Lockout
Percentage, (ii) the Class 2-A9 Priority Percentage and (iii) the Non-PO
Subgroup 4 Optimal Principal Amount.

     Class 2-A9 Priority Percentage: For any Distribution Date, the percentage
equivalent of the fraction which the numerator is the Class 2-A9 Certificate
balance immediately prior to such Distribution Date and the denominator of which
is equal to the aggregate class certificate balance of the Class 2-A6, Class
2-A7, Class 2-A8 and Class 2-A9 Certificates immediately prior to such
Distribution Date.

     Class 2-A9 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A9 Interest Accrual Amount over the
amount actually distributed to the Class 2-A9 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(L).

     Class 2-A10 Certificate: Any one of the Class 2-A10 Certificates, executed
by the Securities Administrator and authenticated and delivered by the
Securities Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class 2-A10 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class 2-A10 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class 2-A10 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class 2-A10 Certificates on such Distribution Date pursuant to Section 6.07(b),
and (iii) any interest shortfall resulting from the Relief Act allocated to the
Class 2-A10 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class 2-A10 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class 2-A10 Interest Accrual Amount over the
amount actually distributed to the Class 2-A10 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(M).


                                      -16-

<PAGE>

     Class A Certificate: Any of the Class 1-A1, Class 1-A2, Class 2-A1, Class
2-A2, Class 2-A3, Class 2-A4, Class 2-A5, Class 2-A6, Class 2-A7, Class 2-A8,
Class 2-A9, Class 2-A10 Class IO-1, Class IO-2, Class PO or Class A-R
Certificates as designated on the face thereof substantially in the form annexed
(other than the Class A-R Certificate) hereto as Exhibits A-1, executed by the
Securities Administrator and authenticated and delivered by the Securities
Administrator, representing the right to distributions as set forth herein and
therein.

     Class A Certificateholder: Any Holder of a Class A Certificate.

     Class A-R Certificate: The Class A-R Certificate created and issued under
this Agreement.

     Class B Certificate: Any one of the Class B-1, Class B-2 or Class B-3
Certificates as designated on the face thereof substantially in the form annexed
hereto as Exhibit A-2, executed by the Securities Administrator and
authenticated and delivered by the Securities Administrator, representing the
right to distributions as set forth herein and therein.

     Class B Certificateholder: Any Holder of a Class B Certificate.

     Class B Percentage: As of any Distribution Date, the difference between
100% and the sum of (i) the Class A Percentage and (ii) the Class M Percentage
for such Distribution Date.

     Class B-1 Certificate: Any one of the Class B-1 Certificates executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, subordinated in right of payment to the Class A and Class M
Certificates, substantially in the form of the Class B Certificate set forth in
Exhibit A-2 hereto.

     Class B-1 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class B-1 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class B-1 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class B-1 Certificates on such Distribution Date pursuant to Section 6.07(b) and
(iii) any interest shortfall resulting from the Relief Act allocated to the
Class B-1 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class B-1 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class B-1 Interest Accrual Amount over the
amount actually distributed to the Class B-1 Certificates on such Distribution
Date pursuant to Sections 6.01(d)(i) (A) and (B).

     Class B-2 Certificate: Any one of the Class B-2 Certificates executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, subordinated in right of payment to the Class A, Class M and
Class B-1 Certificates, substantially in the form of the Class B Certificate set
forth in Exhibit A-2 hereto.

     Class B-2 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class B-2 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class B-2 Certificates on such


                                      -17-

<PAGE>

Distribution Date pursuant to Section 6.07(a), (ii) any Realized Loss Interest
Shortfall allocated to the Class B-2 Certificates on such Distribution Date
pursuant to Section 6.07(b) and (iii) any interest shortfall resulting from the
Relief Act allocated to the Class B-2 Certificates on such Distribution Date
pursuant to Section 6.07(c).

     Class B-2 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class B-2 Interest Accrual Amount over the
amount actually distributed to the Class B-2 Certificates on such Distribution
Date pursuant to Sections 6.01(d)(ii) (A) and (B).

     Class B-3 Certificate: Any one of the Class B-3 Certificates executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, subordinated in right of payment to the Class A, Class M, Class
B-1 and Class B-2 Certificates, substantially in the form of the Class B
Certificate set forth in Exhibit A-2 hereto.

     Class B-3 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Certificate Rate on the Class Certificate Balance of
the Class B-3 Certificates minus (i) any Compensating Interest Shortfall
allocated to the Class B-3 Certificates on such Distribution Date pursuant to
Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated to the
Class B-3 Certificates on such Distribution Date pursuant to Section 6.07(b) and
(iii) any interest shortfall resulting from the Relief Act allocated to the
Class B-3 Certificates on such Distribution Date pursuant to Section 6.07(c).

     Class B-3 Shortfall: With respect to any Distribution Date, the amount
equal to the excess, if any, of the Class B-3 Interest Accrual Amount over the
amount actually distributed to the Class B-3 Certificates on such Distribution
Date pursuant to Sections 6.01(d)(iii) (A) and (B).

      Class Certificate Balance: With respect to any Certificate (other than the
Interest-Only Certificates) as of any date of determination, the Class
Certificate Balance of such Certificate on the Distribution Date immediately
prior to such date of determination, plus any Subsequent Recoveries added to the
Class Certificate Balance of such Certificate pursuant to Section 6.01, and
reduced by the aggregate of (a) all distributions of principal made thereon on
such immediately prior Distribution Date and (b) without duplication of amounts
described in clause (a) above, reductions in the Class Certificate Balance
thereof in connection with allocations thereto of Realized Losses on the
Mortgage Loans and Extraordinary Trust Fund Expenses on such immediately prior
Distribution Date (or, in the case of any date of determination up to and
including the initial Distribution Date, the initial Class Certificate Balance
of such Certificate, as stated on the face thereof); provided, however, that the
Class Certificate Balance of each Subordinate Certificate of the Class of
Subordinate Certificates outstanding with the highest numerical designation at
any given time shall be calculated to equal the Percentage Interest evidenced by
such Certificate multiplied by the excess, if any, of (A) the then aggregate
Stated Principal Balance of the Mortgage Loans over (B) the then aggregate Class
Certificate Balance of all other Classes of Certificates then outstanding.

     Class IO Certificate: Any one of the Class IO-1 Certificates or Class IO-2
Certificates.

     Class IO Interest Accrual Amount: The sum of the Class IO-1 Interest
Accrual Amount and the Class IO-2 Interest Accrual Amount.


                                      -18-

<PAGE>

     Class IO Shortfall: The sum of the Class IO-1 Shortfall and the Class IO-2
Shortfall.

     Class IO-1 Certificate: Any one of the Class IO-1 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class IO-1 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Class IO-1 Certificate Rate on the Class IO-1
Notional Amount minus (i) any Compensating Interest Shortfall allocated to Class
IO-1 on such Distribution Date pursuant to Section 6.07(a), (ii) any Realized
Loss Interest Shortfall allocated to Class IO-1 Certificate on such Distribution
Date pursuant to Section 6.07(b) and (iii) any interest shortfall resulting from
the Servicemembers Civil Relief Act allocated to the Class IO-1 Certificate on
such Distribution Date pursuant to Section 6.07(c).

     Class IO-1 Notional Amount: With respect to any Distribution Date, an
amount equal to the product of the aggregate Stated Principal Balance of the
Non-Discount Mortgage Loans in Mortgage Group One and a fraction the numerator
of which is the Group One Stripped Interest Rate and the denominator of which is
6.00%. The Class IO-1 Notional Amount for the first Distribution Date will be
$6,505,282.

     Class IO-1 Shortfall: With respect to any Distribution Date the amount
equal to the excess, if any, of the Class IO-1 Interest Accrual Amount over the
amount actually distributed to the Class IO-1 Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(C).

     Class IO-2 Certificate: Any one of the Class IO-2 Certificates, executed by
the Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class IO-2 Interest Accrual Amount: With respect to any Distribution Date,
one month's interest at the Class IO Certificate Rate on the Class IO-2 Notional
Amount minus (i) any Compensating Interest Shortfall allocated to Class IO-2 on
such Distribution Date pursuant to Section 6.07(a), (ii) any Realized Loss
Interest Shortfall allocated to Class IO-2 Certificate on such Distribution Date
pursuant to Section 6.07(b) and (iii) any interest shortfall resulting from the
Servicemembers Civil Relief Act allocated to the Class IO-2 Certificate on such
Distribution Date pursuant to Section 6.07(c).

     Class IO-2 Notional Amount: With respect to any Distribution Date, an
amount equal to the product of the aggregate Stated Principal Balance of the
Non-Discount Mortgage Loans in Mortgage Group Two and a fraction the numerator
of which is the Group Two Stripped Interest Rate and the denominator of which is
6.25%. The Class IO-2 Notional Amount for the first Distribution Date will be
$22,236,988.

     Class IO-2 Shortfall: With respect to any Distribution Date the amount
equal to the excess, if any, of the Class IO-2 Interest Accrual Amount over the
amount actually distributed to the Class IO Certificateholders on such
Distribution Date pursuant to Section 6.01(b)(i)(N)(2).


                                       -19-

<PAGE>

     Class M Certificate: Any one of the Class M-1, Class M-2 or Class M-3
Certificates as designated on the face thereof substantially in the form annexed
hereto as Exhibit A-1, executed by the Securities Administrator and
authenticated and delivered by the Securities Administrator, representing the
right to distributions as set forth herein and therein.

     Class M Certificateholder: Any Holder of a Class M Certificate.

     Class M Percentage: The Class M-1 Percentage, Class M-2 Percentage and
Class M-3 Percentage.

     Class M Principal Balance: As of any Distribution Date, (a) the Class M
Principal Balance for the immediately preceding Distribution Date less (b)
amounts distributed to the Class M Certificateholders on such preceding
Distribution Date allocable to principal (including the principal portion of
Monthly Advances of the Servicer made pursuant to Section 6.05(d) and Realized
Losses allocated to the Class M Certificates pursuant to Section 6.02); provided
that the Class M Principal Balance on the first Distribution Date shall be the
Original Class M Principal Balance, and provided further that if the aggregate
Class Certificate Balance of the Class B Certificates has been reduced to zero,
as of any Distribution Date, the Class M Principal Balance will equal the excess
of the Mortgage Pool Principal Balance (together with the portion of any Monthly
Payment due but not paid with respect to which a Monthly Advance has not been
made) over the Class A Principal Balance.

      Class M-1 Interest Accrual Amount: With respect to any Distribution Date,
one (1) month's interest at the Certificate Rate on the Class Certificate
Balance of the Class M-1 Certificates minus (i) any Compensating Interest
Shortfall allocated to the Class M-1 Certificates on such Distribution Date
pursuant to Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated
to the Class M-1 Certificates on such Distribution Date pursuant to Section
6.05(b) and (iii) any interest shortfall resulting from the Relief Act allocated
to the Class M-1 Certificates on such Distribution Date pursuant to Section
6.07(c).

     Class M-1 Percentage: With respect to any Distribution Date, the lesser of
100% and a fraction, expressed as a percentage, the numerator of which is the
aggregate Class Certificate Balance of the Class M-1 Certificates immediately
prior to such date and the denominator of which is the aggregate Stated
Principal Balance of all of the Mortgage Loans (or related REO Properties)
immediately prior to such Distribution Date.

     Class M-2 Interest Accrual Amount: With respect to any Distribution Date,
one (1) month's interest at the Certificate Rate on the Class Certificate
Balance of the Class M-2 Certificates minus (i) any Compensating Interest
Shortfall allocated to the Class M-2 Certificates on such Distribution Date
pursuant to Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated
to the Class M-2 Certificates on such Distribution Date pursuant to Section
6.05(b) and (iii) any interest shortfall resulting from the Relief Act allocated
to the Class M-2 Certificates on such Distribution Date pursuant to Section
6.07(c).

     Class M-2 Percentage: With respect to any Distribution Date, the lesser of
100% and a fraction, expressed as a percentage, the numerator of which is the
aggregate Class Certificate Balance of the Class M-2 Certificates immediately
prior to such date and the denominator of


                                      -20-

<PAGE>

which is the aggregate Stated Principal Balance of all of the Mortgage Loans (or
related REO Properties) immediately prior to such Distribution Date.

     Class M-3 Interest Accrual Amount: With respect to any Distribution Date,
one (1) month's interest at the Certificate Rate on the Class Certificate
Balance of the Class M-3 Certificates minus (i) any Compensating Interest
Shortfall allocated to the Class M-3 Certificates on such Distribution Date
pursuant to Section 6.07(a), (ii) any Realized Loss Interest Shortfall allocated
to the Class M-3 Certificates on such Distribution Date pursuant to Section
6.05(b) and (iii) any interest shortfall resulting from the Relief Act allocated
to the Class M-3 Certificates on such Distribution Date pursuant to Section
6.07(c).

     Class M-3 Percentage: With respect to any Distribution Date, the lesser of
100% and a fraction, expressed as a percentage, the numerator of which is the
aggregate Class Certificate Balance of the Class M-3 Certificates immediately
prior to such date and the denominator of which is the aggregate Stated
Principal Balance of all of the Mortgage Loans (or related REO Properties)
immediately prior to such Distribution Date.

     Class P Certificate: Any one of the Class P Certificates as designated on
the face thereof substantially in the forum of annexed hereto as Exhibit A-4,
executed by the Securities Administrator and authenticated and delivered by the
Securities Administrator representing the right to distributions of Prepayment
Charges received on the Prepayment Charge Mortgage Loans as set forth herein.

     Class PO Amount: With respect to any Distribution Date, the applicable PO
Percentage of (i) all principal received on or in respect of each Discount
Mortgage Loan (exclusive of any amounts in respect of any Monthly Payment)
during the related Principal Prepayment Period and (ii) all principal received
as part of a Monthly Payment on or in respect of a Discount Mortgage Loan during
the related Due Period.

     Class PO Certificate: Any one of the Class PO Certificates, executed by the
Securities Administrator and authenticated and delivered by the Securities
Administrator, senior in right of payment to the Class M and Class B
Certificates, substantially in the form of the Class A Certificate set forth in
Exhibit A-1 hereto.

     Class PO Certificate Distribution Amount: On each Distribution Date, the
sum of (i) the amount of principal received on any related Discount Mortgage
Loan multiplied by the applicable PO Percentage with respect to such Discount
Mortgage Loan, and (2) on each Distribution Date prior to and including the
Credit Support Depletion Date, the Class PO Shortfall Amount.

     Class PO Component One: The portion of the Class PO Certificates so
designated under the heading "The Certificates" in the Preliminary Statement.

     Class PO Component Two: The portion of the Class PO Certificates so
designated under the heading "The Certificates" in the Preliminary Statement.


                                      -21-

<PAGE>

     Class PO Shortfall Amount: With respect to any Distribution Date prior to
and including the Credit Support Depletion Date, to the extent of amounts
available to pay the Subordinated Optimal Principal Amount (without regard to
clause (2) of the definition of such term), an amount equal to the sum of (i)
the applicable PO Percentage of the principal portion of any Realized Loss with
respect to a Discount Mortgage Loan and (ii) the sum of amounts, if any, by
which the amounts specified in clause (i) with respect to each prior
Distribution Date exceeded the amount actually distributed in respect thereof on
such prior Distribution Date and not subsequently distributed to the Class PO
Certificateholders.

     Class Subordination Percentage: With respect to any Distribution Date and
each Class of Subordinate Certificates, the fraction (expressed as a percentage)
the numerator of which is the Class Certificate Balance of such Class of
Subordinate Certificates immediately prior to such Distribution Date and the
denominator of which is the aggregate of the Class Certificate Balances of all
Classes of Certificates immediately prior to such Distribution Date.

     Closing Date: March 26, 2007.

     CMC: Central Mortgage Company.

     Code: The Internal Revenue Code of 1986, as amended.

     Commission: The Securities and Exchange Commission.

     Compensating Interest Shortfall: As defined in Section 6.07(a).

     Compensating Interest Payments: As defined in Section 6.06.

     Cooperative: A corporation that has been formed for the purpose of
cooperative apartment ownership.

     Cooperative Assets: Shares issued by Cooperatives, the related Cooperative
Lease and any other collateral securing the Cooperative Loans.

     Cooperative Lease: With respect to a Cooperative Loan, the proprietary
lease or occupancy agreement with respect to the cooperative apartment occupied
by the Mortgagor and relating to the related Cooperative Assets, which lease or
agreement confers an exclusive right to the holder of such Cooperative Assets to
occupy such apartment.

     Cooperative Loan: The indebtedness of a Mortgagor evidenced by a Mortgage
Note which is secured by Cooperative Assets and which is being sold to the
Depositor pursuant to this Agreement, the Mortgage Loans so sold being
identified in the Mortgage Loan Schedule.

     Cooperative Stock: With respect to a Cooperative Loan, the single
outstanding class of stock, partnership interest or other ownership instrument
in the related Cooperative.

     Corporate Trust Office: With respect to the Trustee, the principal
corporate trust office of the Trustee at which at any particular time its
corporate trust business in connection with this


                                      -22-

<PAGE>

Agreement shall be administered, which office at the date of the execution of
this instrument is located at HSBC Bank USA, National Association, 452 Fifth
Avenue, New York, New York 10018, Attention: Issuer Services - Merrill Lynch
Mortgage Investors, Inc., MANA Series 2007-F1, or at such other address as the
Trustee may designate from time to time by notice to the Certificateholders, the
Depositor and the Master Servicer and with respect to the Securities
Administrator, for Certificate transfer purposes, Wells Fargo Center, Sixth
Street and Marquette Avenue, Minneapolis, Minnesota 55479, Attn: Client Service
Manager - MANA 2007-F1, and for all other purposes, 9062 Old Annapolis Road,
Columbia, Maryland, 21045, Attn: Corporate Trust Services - MANA 2007-F1.

     Corresponding Class or Classes of Certificates: With respect to each REMIC
2 Regular Interest, the Class or Classes of Certificates appearing opposite such
REMIC 2 Regular Interest as described in the Preliminary Statement hereto.

     Credit Support: With respect to each Class of Subordinate Certificates
(other than the Class B-3 Certificates), the level of credit support supporting
such Class, expressed as a percentage of the aggregate outstanding Class
Certificate Balance of all Classes of Certificates (other than the Class PO
Certificates). With respect to each Distribution Date, Credit Support for each
such Class will equal in each case the percentage, rounded to two decimal
places, obtained by dividing the aggregate outstanding Class Certificate Balance
immediately prior to such Distribution Date of all Classes of Subordinate
Certificates having higher numerical Class designations than such Class by the
aggregate outstanding Class Certificate Balance of all Classes of Certificates
(other than the Class PO Certificates) immediately prior to such Distribution
Date. For purposes of this defined term, the Class B Certificates shall be
considered as having higher numerical Class designations than the Class M
Certificates.

     Credit Support Depletion Date: The first Distribution Date on which the
aggregate Class Certificate Balance of the Subordinate Certificates is reduced
to zero.

     Curtailment: Any Principal Prepayment made by a Mortgagor which is not a
Principal Prepayment in Full.

     Custodial Agreement: An agreement, dated as of the Closing Date among the
Depositor, the Master Servicer, the Securities Administrator, the Trustee and
the Custodian in substantially the form of Exhibit G hereto.

     Custodian: Wells Fargo Bank, N.A., including any successors in interest, or
any successor custodian appointed pursuant to the provisions hereof and of the
Custodial Agreement.

     Cut-off Date: March 1, 2007.

     Debt Service Reduction: Any reduction of the Monthly Payments which a
Mortgagor is obligated to pay with respect to a Mortgage Loan as a result of any
proceeding under the Bankruptcy Code or any other similar state law or other
proceeding.

     Defective Mortgage Loan: A Mortgage Loan replaced or to be replaced by one
or more Substitute Mortgage Loans.


                                      -23-

<PAGE>

     Deficiency Amount: Any of the Subgroup 1 Deficiency Amount, the Subgroup 2
Deficiency Amount, the Subgroup 3 Deficiency Amount or the Subgroup 4 Deficiency
Amount.

     Deficient Valuation: With respect to any Mortgage Loan, a valuation of the
related Mortgaged Property by a court of competent jurisdiction in an amount
less than the then outstanding principal balance of the Mortgage Loan, which
valuation results from a proceeding initiated under the Bankruptcy Code.

     Definitive Certificates: As defined in Section 5.06.

     Depositor: Merrill Lynch Mortgage Investors, Inc., a Delaware corporation,
or any successor in interest.

     Depository: The Depository Trust Company, the nominee of which is Cede &
Co., or any successor thereto.

      Depository Participant: A broker, dealer, bank or other financial
institution or other Person for whom from time to time the Depository effects
book-entry transfers and pledges of securities deposited with the Depository.

     Designated Depository Institution: A depository institution (commercial
bank, federal savings bank, mutual savings bank or savings and loan association)
or trust company (which may include the Trustee), the deposits of which are
fully insured by the FDIC to the extent provided by law.

     Determination Date: With respect to each Mortgage Loan, the Determination
Date as defined in the related Servicing Agreement.

     Discount Mortgage Loan: A Mortgage Loan having a Net Mortgage Rate less
than the applicable Remittance Rate.

      Disqualified Organization: A "disqualified organization" as defined in
Section 860 E(e)(5) of the Code.

     Distribution Account: The trust account or accounts created and maintained
pursuant to Section 4.04, which shall be denominated "Wells Fargo Bank, National
Association, as Securities Administrator for HSBC Bank USA, National
Association, as Trustee f/b/o holders of Merrill Lynch Mortgage Investors, Inc.,
Mortgage Pass-Through Certificates, MANA Series 2007-F1 - Distribution Account."
The Distribution Account shall be an Eligible Account.

     Distribution Account Deposit Date: The Business Day prior to each
Distribution Date.

     Distribution Date: The 25th day of any month, beginning in April 2007, or,
if such 25th day is not a Business Day, the Business Day immediately following.

     Due Date: With respect to each Mortgage Loan, the date in each month on
which its Monthly Payment is due if such due date is the first day of a month
and otherwise is deemed to


                                       -24-

<PAGE>

be the first day of the following month or such other date specified in the
related Servicing Agreement.

     Due Period: With respect to any Distribution Date and each Mortgage Loan,
the period commencing on the second day of the month preceding the month in
which the Distribution Date occurs and ending at the close of business on the
first day of the month in which the Distribution Date occurs.

     Eligible Account: Any of (i) a segregated account maintained with a federal
or state chartered depository institution (A) the short-term obligations of
which are rated A-1 or better by S&P and P-1 by Moody's at the time of any
deposit therein or (B) insured by the FDIC (to the limits established by such
Corporation), the uninsured deposits (as evidenced in writing by the Rating
Agencies that use of any such account as the Distribution Account will not have
an adverse effect on the then-current ratings assigned to the Classes of
Certificates then rated by the Rating Agencies) in which account are otherwise
secured such that, as evidenced by an Opinion of Counsel (obtained by the Person
requesting that the account be held pursuant to this clause (i)) delivered to
the Securities Administrator prior to the establishment of such account, the
Certificateholders will have a claim with respect to the funds in such account
and a perfected first priority security interest against any collateral (which
shall be limited to Permitted Investments, each of which shall mature not later
than the Business Day immediately preceding the Distribution Date next following
the date of investment in such collateral or the Distribution Date if such
Permitted Investment is an obligation of the institution that maintains the
Distribution Account) securing such funds that is superior to claims of any
other depositors or general creditors of the depository institution with which
such account is maintained, (ii) a segregated trust account or accounts
maintained with a federal or state chartered depository institution or trust
company with trust powers acting in its fiduciary capacity or (iii) a segregated
account or accounts of a depository institution acceptable to the Rating
Agencies (as evidenced in writing by the Rating Agencies that use of any such
account as the Distribution Account will not have an adverse effect on the
then-current ratings assigned to the Classes of the Certificates then rated by
the Rating Agencies). Eligible Accounts may bear interest.

     ERISA: The Employee Retirement Income Security Act of 1974, as amended.

     ERISA-Qualifying Underwriting: A best efforts or firm commitment
underwriting or private placement that would satisfy the requirements of
Prohibited Transaction Exemption 90-29, Exemption Application No. D-8012, 55
Fed. Reg. 21459 (1990), as amended, granted to the Underwriter by the United
States Department of Labor (or any other applicable underwriter's exemption
granted by the United States Department of Labor), except, in relevant part, for
the requirement that the certificates have received a rating at the time of
acquisition that is in one of the three (or four, in the case of a "designated
transaction") highest generic rating categories by at least one of the Rating
Agencies.

     ERISA Restricted Certificates: Any of the Class B-1, Class B-2, Class B-3
or Class P Certificates, and any other Certificate, as long as the acquisition
and holding of such Certificate is not covered by and exempt under an
underwriter's exemption.

     Event of Default: An event of default described in Section 8.01.


                                      -25-

<PAGE>

     Excess Liquidation Proceeds: To the extent that such amount is not required
by law to be paid to the related Mortgagor, the amount, if any, by which
Liquidation Proceeds with respect to a Liquidated Mortgage Loan exceed the sum
of (i) the Outstanding Principal Balance of such Mortgage Loan and accrued but
unpaid interest at the related Mortgage Interest Rate through the last day of
the month in which the related Liquidation Date occurs, plus (ii) related
Liquidation Expenses.

     Exchange Act: The Securities Exchange Act of 1934, as amended.

     Extraordinary Loss: Any Realized Loss or portion thereof caused by or
resulting from:

          (i) nuclear or chemical reaction or nuclear radiation or radioactive
     or chemical contamination, all whether controlled or uncontrolled and
     whether such loss be direct or indirect, proximate or remote;

          (ii) hostile or warlike action in time of peace or war, including
     action in hindering, combating or defending against an actual, impending or
     expected attack by any government or sovereign power, de jure or de facto,
     or by any authority maintaining or using military, naval or air forces, or
     by military, naval or air forces, or by an agent of any such government,
     power, authority or forces;

          (iii) any weapon of war employing atomic fission or radioactive forces
     whether in time of peace or war, and

          (iv) insurrection, rebellion, revolution, civil war, usurped power or
     action taken by governmental authority in hindering, combating or defending
     against such an occurrence, seizure or destruction under quarantine or
     customs regulations, confiscation by order of any government or public
     authority, or risks of contraband or illegal transactions or trade.

     Extraordinary Trust Fund Expenses: Any amounts reimbursable to the Master
Servicer or the Depositor pursuant to this Agreement, including but not limited
to Sections 4.03, 4.05 and 7.04, any amounts reimbursable to the Trustee and the
Securities Administrator from the Trust Fund pursuant to this Agreement,
including but not limited to Section 9.05, and any other costs, expenses,
liabilities and losses borne by the Trust Fund (exclusive of any cost, expense,
liability or loss that is specific to a particular Mortgage Loan or REO Property
and is taken into account in calculating a Realized Loss in respect thereof) for
which the Trust Fund has not and, in the reasonable good faith judgment of the
Securities Administrator, shall not, obtain reimbursement or indemnification
from any other Person.

     Fannie Mae: Federal National Mortgage Association or any successor thereto.

     FDIC: Federal Deposit Insurance Corporation or any successor thereto.

     Final Certification: The certification substantially in the form of Exhibit
Two to the Custodial Agreement.


                                      -26-

<PAGE>

     Fitch: Fitch Inc. or its successor in interest.

     Form 8-K Disclosure Information: As defined in Section 3.18(a).

     Freddie Mac: Freddie Mac, formerly the Federal Home Loan Mortgage
Corporation, or any successor thereto.

     Global Certificate: Any Private Certificate registered in the name of the
Depository or its nominee, beneficial interests in which are reflected on the
books of the Depository or on the books of a Person maintaining an account with
such Depository (directly or as an indirect participant in accordance with the
rules of such depository).

     Group I Certificates: The Class 1-A1, Class 1-A2, Class A-R and Class IO-1
Certificates.

     Group II Certificates: The Class 2-A1, Class 2-A2, Class 2-A3, Class 2-A4,
Class 2-A5, Class 2-A6, Class 2-A7, Class 2-A8, Class 2-A9, Class 2-A10 and
Class IO-2 Certificates.

     Group One Class PO Amount: With respect to any Distribution Date, the
applicable PO Percentage of (i) all principal received on or in respect of each
Discount Mortgage Loan in Mortgage Group One (exclusive of any amounts in
respect of any Monthly Payment) during the related Principal Prepayment Period
and (ii) all principal received as part of a Monthly Payment on or in respect of
a Discount Mortgage Loan in Mortgage Group One during the related Due Period.

     Group One Mortgage Loans: The Mortgage Loans in Mortgage Group One.

     Group One Mortgage Pool Principal Balance: As of any date of determination,
the aggregate of the Principal Balances of each Outstanding Mortgage Loan in
Mortgage Group One on such date of determination less the principal portion of
any Monthly Payment due but not paid with respect to which a Monthly Advance has
not been made.

     Group One Remittance Rate: 5.50% per annum.

     Group One Stripped Interest Rate: The excess of the weighted average Net
Mortgage Rate of the Group One Mortgage Loans that are Non-Discount Mortgage
Loans over the Group One Remittance Rate.

     Group One Subordinated Amount: For any Distribution Date, the excess of the
Group One Non-PO Allocated Amount immediately following the preceding
Distribution Date (or as of the Cut-off Date if there is no preceding
Distribution Date) over the aggregate outstanding Principal Balance of the Group
I Certificates (prior to giving effect to distributions to be made on such
Distribution Date and allocation of losses to be made on such Distribution
Date).

     Group Two Class PO Amount: With respect to any Distribution Date, the
applicable PO Percentage of (i) all principal received on or in respect of each
Discount Mortgage Loan in Mortgage Group Two (exclusive of any amounts in
respect of any Monthly Payment) during the


                                      -27-

<PAGE>

related Principal Prepayment Period and (ii) all principal received as part of a
Monthly Payment on or in respect of a Discount Mortgage Loan in Mortgage Group
Two during the related Due Period.

     Group Two Mortgage Loans: The Mortgage Loans in Mortgage Group Two.

     Group Two Mortgage Pool Principal Balance: As of any date of determination,
the aggregate of the Principal Balances of each Outstanding Mortgage Loan in
Mortgage Group Two on such date of determination less the principal portion of
any Monthly Payment due but not paid with respect to which a Monthly Advance has
not been made.

     Group Two Non-PO Allocated Amount: At the time of any determination, the
amount derived by (i) multiplying the outstanding Principal Balance of each
Mortgage Loan in Mortgage Group Two on such date of determination by the Non-PO
Percentage with respect to such Mortgage Loan and (ii) summing the results.

     Group Two Remittance Rate: 6.00% per annum.

     Group Two Stripped Interest Rate: The excess of the weighted average Net
Mortgage Rate of the Group Two Mortgage Loans that are Non-Discount Mortgage
Loans over the Group Two Remittance Rate.

     Group Two Subordinated Amount: For any Distribution Date, the excess of the
Group Two Non-PO Allocated Amount immediately following the preceding
Distribution Date (or as of the Cut-off Date, if there is no preceding
Distribution Date) over the aggregate outstanding Principal Balance of the Class
2-A1, Class 2-A2 and Class 2-A3 Certificates (prior to giving effect to
distributions to be made on such Distribution Date and allocation of losses to
be made on such Distribution Date).

     Highest Priority: As of any date of determination, the Class of Subordinate
Certificates then outstanding with the earliest priority for payments pursuant
to Section 6.01, in the following order: Class M-1, Class M-2, Class M-3, Class
B-1, Class B-2 and Class B-3 Certificates.

     Indemnified Persons: The Trustee, the Master Servicer, the Depositor and
the Securities Administrator and their officers, directors, agents and employees
and, with respect to the Trustee, any separate co-trustee and its officers,
directors, agents and employees.

     Independent: When used with respect to any specified Person, any such
Person who (a) is in fact independent of the Depositor, the Master Servicer and
their respective Affiliates, (b) does not have any direct financial interest in
or any material indirect financial interest in the Depositor or the Master
Servicer or any Affiliate thereof, and (c) is not connected with the Depositor
or the Master Servicer or any Affiliate thereof as an officer, employee,
promoter, underwriter, trustee, partner, director or Person performing similar
functions; provided, however, that a Person shall not fail to be Independent of
the Depositor or the Master Servicer or any Affiliate thereof merely because
such Person is the beneficial owner of 1% or less of any class of securities
issued by the Depositor or the Master Servicer or any Affiliate thereof, as the
case may be.


                                      -28-

<PAGE>

     Index: The index, if any, specified in a Mortgage Note by reference to
which the related Mortgage Interest Rate will be adjusted from time to time.

     Individual Certificate: Any Private Certificate registered in the name of
the Holder other than the Depository or its nominee.

     IndyMac: IndyMac Bank, F.S.B. or any successor thereto.

     IndyMac Assignment Agreement: The Assignment, Assumption and Recognition
Agreement, dated as of March 1, 2007, among IndyMac, the Depositor and the
Seller pursuant to which the IndyMac Servicing Agreement and the rights of the
Seller thereunder (other than the rights to enforce the representations and
warranties with respect to the IndyMac Loans) were assigned to the Depositor for
the benefit of the Certificateholders.

     IndyMac Loans: The Mortgage Loans serviced by IndyMac pursuant to the
IndyMac Servicing Agreement.

     IndyMac Servicing Agreement: The Master Seller's Warranties and Servicing
Agreement, dated as of May 1, 2006, between IndyMac Bank, F.S.B., as seller, and
MLML, as purchaser, as at any time in effect.

     Initial Certification: The certification substantially in the form of
Exhibit One to the Custodial Agreement.

     Initial Class Certificate Balance: With respect to any Regular Certificate,
the amount designated "Initial Class Certificate Balance" on the face thereof.

     Initial Optional Termination Date: The first Distribution Date following
the date on which the aggregate Stated Principal Balance of the Mortgage Loans
is less than 10% of the aggregate Stated Principal Balance of the Mortgage Loans
as of the Cut-off Date.

     Insurance Policy: With respect to any Mortgage Loan, any standard hazard
insurance policy, flood insurance policy or title insurance policy.

     Insurance Proceeds: Amounts paid by the insurer under any Insurance Policy
covering any Mortgage Loan or Mortgaged Property other than amounts required to
be paid over to the Mortgagor pursuant to law or the related Mortgage Note or
Security Instrument and other than amounts used to repair or restore the
Mortgaged Property or to reimburse insured expenses.

     Interest Adjustment Date: With respect to a Mortgage Loan, the date, if
any, specified in the related Mortgage Note on which the Mortgage Interest Rate
is subject to adjustment.

     Interest-Only Certificate: Any of the Class 2-A5, Class IO-1 or Class IO-2
Certificates.

     Investor Representation Letter: As defined in Section 5.02(b).

     IRS: As defined in Section 9.12.


                                      -29-

<PAGE>

     Issuing Entity: Merrill Lynch Alternative Note Asset Trust, Series 2007-F1.

     Late Collections: With respect to any Mortgage Loan, all amounts received
during any Due Period, whether as late payments of Monthly Payments or as
Liquidation Proceeds, condemnation proceeds, Insurance Proceeds, or with respect
to a disposition of a Mortgaged Property (or stock allocated to a dwelling unit,
in the case of a Co-op Loan) which has been acquired by foreclosure or deed in
lieu of foreclosure or otherwise, which represent late payments or collections
of Monthly Payments due but delinquent for a previous Due Period and not
previously recovered.

     Latest Possible Maturity Date: With respect to the Certificates, the
Distribution Date in March 2037.

     Liquidated Mortgage Loan: Any defaulted Mortgage Loan (including any REO
Property) as to which the related Servicer has determined that all amounts it
expects to recover from or on account of such Mortgage Loan have been recovered.

     Liquidation Date: With respect to any Liquidated Mortgage Loan, the date on
which the related Servicer has certified that such Mortgage Loan has become a
Liquidated Mortgage Loan.

     Liquidation Expenses: With respect to a Mortgage Loan in liquidation,
unreimbursed expenses paid or incurred by or for the account of the Master
Servicer or the related Servicer in connection with the liquidation of such
Mortgage Loan and the related Mortgaged Property, such expenses including (a)
property protection expenses, (b) property sales expenses, (c) foreclosure and
sale costs, including court costs and reasonable attorneys' fees, and (d)
similar expenses reasonably paid or incurred in connection with liquidation.

     Liquidation Proceeds: With respect to any Mortgage Loan, cash received in
connection with the liquidation of a defaulted Mortgage Loan, whether through
trustee's sale, foreclosure sale or otherwise, and amounts received through
Insurance Proceeds and condemnation proceeds.

     Loan-to-Value Ratio: With respect to any Mortgage Loan, the fraction,
expressed as a percentage, the numerator of which is the original principal
balance of the related Mortgage Loan and the denominator of which is the
Original Value of the related Mortgaged Property.

     Lockout Certificates: Any of the Class 2-A3 or Class 2-A9 Certificates.

     Lower Priority: As of any date of determination and with respect to any
Class of Subordinate Certificates, any other Class of Subordinate Certificates
then outstanding with a later priority for payments pursuant to Section 6.01.

     Lower Tier Regular Interests: Any of the REMIC 1 Regular Interests or the
REMIC 2 Regular Interests.

     Lower Tier REMIC Interests: Any of the REMIC 1 Interests or the REMIC 2
Interests.


                                      -30-

<PAGE>

     Lowest Priority: As of any date of determination, the Class of Subordinate
Certificates then outstanding with the latest priority for payments pursuant to
Section 6.01, in the following order: Class B-3, Class B-2, Class B-1, Class
M-3, Class M-2 and Class M-1 Certificates.

     Lost Notes: The original Mortgage Notes that have been lost, as indicated
on the Mortgage Loan Schedule.

     Majority Certificateholders: The Holders of Certificates evidencing at
least 51% of the Voting Rights.

     Master Servicer: Wells Fargo Bank, N.A. including any successors in
interest who meet the qualifications of the Servicing Agreements and this
Agreement, and any successor master servicer appointed hereunder.

     Master Servicer Collection Account: The trust account or accounts created
and maintained pursuant to Section 4.02, which shall be denominated "Wells Fargo
Bank, National Association as Master Servicer for HSBC Bank USA, National
Association, as Trustee f/b/o holders of Merrill Lynch Mortgage Investors, Inc.,
Mortgage Pass-Through Certificates, MANA Series 2007-F1 - Master Servicer
Collection Account." The Master Servicer Collection Account shall be an Eligible
Account.

     Master Servicing Compensation: The amount due to the Master Servicer
pursuant to Section 3.14.

     Maximum Lifetime Mortgage Rate: The maximum level to which a Mortgage
Interest Rate can adjust in accordance with its terms, regardless of changes in
the applicable Index.

     Minimum Lifetime Mortgage Rate: The minimum level to which a Mortgage
Interest Rate can adjust in accordance with its terms, regardless of changes in
the applicable Index.

     MLML: Merrill Lynch Mortgage Lending, Inc., a Delaware corporation, or any
successor in interest.

     Monthly Advance: An advance of principal or interest required to be made by
the applicable Servicer pursuant to the related Servicing Agreement or the
Master Servicer pursuant to Section 6.05.

     Monthly Payment: With respect to any Mortgage Loan, the scheduled monthly
payment of principal and interest on such Mortgage Loan which is payable by the
related Mortgagor from time to time under the related Mortgage Note, determined:
(a) after giving effect to (i) any Deficient Valuation and/or Debt Service
Reduction with respect to such Mortgage Loan and (ii) any reduction in the
amount of interest collectible from the related Mortgagor pursuant to the Relief
Act; (b) without giving effect to any extension granted or agreed to by the
related Servicer pursuant to related Servicing Agreement; and (c) on the
assumption that all other amounts, if any, due under such Mortgage Loan are paid
when due.

     Monthly Principal: The principal portion of any Monthly Payment.


                                      -31-

<PAGE>

     Monthly Statement: The statement distributed to Certificateholders pursuant
to Section 6.04.

     Moody's: Moody's Investors Service, Inc. or its successor in interest.

     Mortgage: The mortgage, deed of trust or other instrument creating a first
lien on, or first priority security interest in, a Mortgaged Property securing a
Mortgage Note.

     Mortgage Component: Each portion of a Mortgage Loan allocated to a Subgroup
pursuant to the definitions of Subgroup 1, Subgroup 2, Subgroup 3 and Subgroup
4, as applicable.

     Mortgage File: The mortgage documents listed in Section 2.01(b) pertaining
to a particular Mortgage Loan and any additional documents required to be added
to the Mortgage File pursuant to this Agreement.

     Mortgage Group: Pertaining to Mortgage Group One or Mortgage Group Two, as
the case may be.

     Mortgage Group One: The Mortgage Loans in the Trust Fund that are
designated in the Mortgage Loan Schedule attached hereto as Exhibit B as
comprising Mortgage Group One.

     Mortgage Group One Subordinated Prepayment Percentage: As of any
Distribution Date, the difference between 100% and the Non-PO Group I Prepayment
Percentage.

     Mortgage Group Two: The Mortgage Loans in the Trust Fund that are
designated in the Mortgage Loan Schedule attached hereto as Exhibit B as
comprising Mortgage Group Two.

     Mortgage Interest Rate: The annual rate at which interest accrues from time
to time on any Mortgage Loan pursuant to the related Mortgage Note, which rate
is equal to the "Mortgage Interest Rate" set forth with respect thereto on the
Mortgage Loan Schedule.

     Mortgage Loan: A mortgage loan transferred and assigned to the Trustee
pursuant to Section 2.01 or Section 2.04 and held as a part of the Trust Fund,
as identified in the Mortgage Loan Schedule, including a mortgage loan the
property securing which has become an REO Property.

     Mortgage Loan Purchase Agreement: The Mortgage Loan Purchase Agreement,
dated as of March 1, 2007, between the Seller and the Depositor, and all
amendments thereof and supplements thereto.

     Mortgage Loan Schedule: The schedule, attached hereto as Exhibit B with
respect to the Mortgage Loans and as amended from time to time to reflect the
repurchase or substitution of Mortgage Loans pursuant to this Agreement.

     Mortgage Note: The originally executed note or other evidence of the
indebtedness of a Mortgagor under the related Mortgage Loan.


                                      -32-
<PAGE>

     Mortgage Pool: The pool of Mortgage Loans, identified on Exhibit B and as
amended from time to time, and any REO Properties acquired in respect thereof.

     Mortgaged Property: Land and improvements securing the indebtedness of a
Mortgagor under the related Mortgage Loan or, in the case of REO Property, such
REO Property.

     Mortgagor: The obligor on a Mortgage Note.

     Net Liquidation Proceeds: As to any Liquidated Mortgage Loan, Liquidation
Proceeds net of (i) Liquidation Expenses which are payable therefrom by the
related Servicer or the Master Servicer in accordance with the related Servicing
Agreement or this Agreement and (ii) unreimbursed advances by the related
Servicer or the Master Servicer and Monthly Advances.

     Net Mortgage Rate: With respect to each Mortgage Loan, the Mortgage
Interest Rate in effect from time to time less the Servicing Fee Rate (expressed
as a per annum rate).

     Non-Discount Mortgage Loan: A Mortgage Loan having a Net Mortgage Rate
greater than the Remittance Rate.

     Non-PO Allocated Amount: Any of the Non-PO Subgroup 1 Allocated Amount, the
Non-PO Subgroup 2 Allocated Amount, the Non-PO Subgroup 3 Allocated Amount and
the Non-PO Subgroup 1 Allocated Amount.

     Non-PO Group I Percentage: As of any Distribution Date, a fraction,
expressed as a percentage (which shall never exceed 100%), the numerator of
which is the Non-PO Group I Principal Balance and the denominator of which is
the Group One Non-PO Allocated Amount as of the immediately preceding Due Date.

     Non-PO Group II Percentage: As of any Distribution Date, a fraction,
expressed as a percentage (which shall never exceed 100%), the numerator of
which is the Non-PO Group II Principal Balance and the denominator of which is
the Group Two Non-PO Allocated Amount of the immediately preceding Due Date.

     Non-PO Percentage: With respect to each Mortgage Loan, the fraction,
expressed as a percentage (but not greater than 100%), the numerator of which
equals the applicable Net Mortgage Rate and the denominator of which equals the
applicable Remittance Rate.

     Non-PO Principal Balance: In the case of a Non-Discount Mortgage Loan, the
Stated Principal Balance of such Mortgage Loan and, in the case of a Discount
Mortgage Loan, the product of (i) the Stated Principal Balance of such Mortgage
Loan and (ii) the Non-PO Percentage for such Mortgage Loan.

     Non-PO Senior Certificate: Any Senior Certificates other than the Class PO
Certificates.

     Non-PO Senior Optimal Principal Amount: Any of the Non-PO Subgroup 1
Optimal Principal Amount, the Non-PO Subgroup 2 Optimal Principal Amount, the
Non-PO Subgroup 3 Optimal Principal Amount or the Non-PO Subgroup 4 Optimal
Principal Amount.


                                      -33-

<PAGE>

     Non-PO Senior Percentage: Any of the Non-PO Subgroup 1 Percentage, the
Non-PO Subgroup 2 Percentage, the Non-PO Subgroup 3 Percentage or the Non-PO
Subgroup 4 Percentage.

     Non-PO Senior Prepayment Percentage: Any of the Non-PO Subgroup 1
Prepayment Percentage, the Non-PO Subgroup 2 Prepayment Percentage, the Non-PO
Subgroup 3 Prepayment Percentage or the Non-PO Subgroup 1 Prepayment Percentage.

     Non-PO Senior Principal Balance: Any of the Non-PO Subgroup 1 Principal
Balance, the Non-PO Subgroup 2 Principal Balance, the Non-PO Subgroup 3
Principal Balance or the Non-PO Subgroup 4 Principal Balance.

     Non-PO Subgroup 1 Allocated Amount: At the time of any determination, the
amount derived by (i) multiplying the outstanding Principal Balance of each
Mortgage Component in Subgroup 1 on such date of determination (giving effect to
any Monthly Advances but prior to giving effect to any principal prepayments
received with respect to such Mortgage Component that have not been passed
through to Certificateholders) by the Non-PO Percentage with respect to such
Mortgage Component and (ii) summing the results.

     Non-PO Subgroup 1 Optimal Principal Amount: With respect to any
Distribution Date, the lesser of (a) the applicable Non-PO Subgroup Principal
Balance and (b) the sum of:

     (i) the Non-PO Subgroup 1 Percentage of the applicable Non-PO Percentage of
the principal portion of all Monthly Payments, whether or not received, which
were due during the related Due Period on Subgroup 1 Mortgage Loans which were
outstanding during such Due Period;

     (ii) the Non-PO Subgroup 1 Prepayment Percentage of the Non-PO Subgroup 1
Percentage of all Principal Prepayments received on any Subgroup 1 Mortgage
Component during the related Principal Prepayment Period;

     (iii) with respect to each Mortgage Component not described in (iv) below,
the Non-PO Subgroup 1 Percentage of the applicable Non-PO Percentage of the
principal portion of all Insurance Proceeds, condemnation awards and any other
cash proceeds from a source other than the applicable Mortgagor, to the extent
required to be deposited in the Master Servicer Collection Account, which were
received during the related Principal Prepayment Period with respect to a
Subgroup 1 Mortgage Loan, net of related unreimbursed Servicing Advances and net
of any portion thereof which, as to any such Mortgage Component, constitutes
Late Collections that have been the subject of a Monthly Advance on any prior
Distribution Date;

     (iv) with respect to each Subgroup 1 Mortgage Loan which has become a
Liquidated Mortgage Loan during the preceding calendar month, the lesser of (A)
the Non-PO Subgroup 1 Percentage of the applicable Non-PO Percentage of an
amount equal to the Principal Balance of such Liquidated Mortgage Loan (net of
Monthly Advances with respect to principal) as of the Due Date immediately
preceding the date on which it became a Liquidated Mortgage Loan and (B) the
Non-PO Subgroup 1 Prepayment Percentage of the Non-PO Subgroup 1 Percentage of
the Net Liquidation Proceeds with respect to such liquidated Mortgage Loan (net
of any unreimbursed Monthly Advances);


                                      -34-

<PAGE>

     (v) with respect to each Subgroup 1 Mortgage Loan repurchased during the
related Principal Prepayment Period, an amount equal to the Non-PO Subgroup 1
Prepayment Percentage of the applicable Non-PO Percentage of the principal
portion of the Purchase Price (net of amounts with respect to which a
distribution of principal has previously been made to the applicable Non-PO
Certificateholders);

     (vi) on or after the Credit Support Depletion Date, the excess of the
Non-PO Subgroup 1 Principal Balance (calculated after giving effect to
reductions thereof on such Distribution Date with respect to the amounts
described in (i) to (v) above) over the Non-PO Subgroup 1 Allocated Amount; and

     (vii) Subsequent Recoveries.

     Non-PO Subgroup 1 Percentage: As of any Distribution Date, a fraction,
expressed as a percentage, the numerator of which is the Non-PO Subgroup 1
Principal Balance and the denominator of which is the Non-PO Subgroup 1
Allocated Amount immediately prior to the Due Date in the month of such
Distribution Date.

     Non-PO Subgroup 1 Prepayment Percentage: As of any Distribution Date up to
and including the Distribution Date in March 2012, 100%; as of any Distribution
Date in the first year thereafter, the Non-PO Subgroup 1 Percentage plus 70% of
the applicable Subordinated Percentage for such Distribution Date; as of any
Distribution Date in the second year thereafter, the Non-PO Subgroup 1
Percentage plus 60% of the applicable Subordinated Percentage for such
Distribution Date; as of any Distribution Date in the third year thereafter, the
Non-PO Subgroup 1 Percentage plus 40% of the applicable Subordinated Percentage
for such Distribution Date; as of any Distribution Date in the fourth year
thereafter, the Non-PO Subgroup 1 Percentage plus 20% of the applicable
Subordinated Percentage for such Distribution Date; and as of any Distribution
Date after the fourth year thereafter, the Non-PO Subgroup 1 Percentage;
provided that, if the Non-PO Subgroup 1 Percentage as of any such Distribution
Date is greater than the Non-PO Subgroup 1 Percentage on the first Distribution
Date, the Non-PO Subgroup 1 Prepayment Percentage shall be 100%; and provided
further, however, that whenever the Non-PO Subgroup 1 Percentage equals 0%, the
Non-PO Subgroup 1 Prepayment Percentage shall equal 0%; and provided further
that no reduction of the Non-PO Subgroup 1 Prepayment Percentage below the level
in effect for the most recent period shall occur with respect to any
Distribution Date unless, as of the last day of the month preceding such
Distribution Date, (i) the aggregate outstanding Principal Balance of Mortgage
Components with respect to each of the Subgroups, each taken individually,
delinquent 60 days or more (including for this purpose any Mortgage Components
in foreclosure and Mortgage Components with respect to which the related
Mortgaged Property has been acquired by the Trust Fund) does not exceed 50% of
the related Subordinated Percentage of the Mortgage Pool Principal Balance with
respect to Subgroup 1 as of such date and (ii) cumulative Realized Losses
with respect to any Subgroup, each taken individually, do not exceed (a) 30% of
the related Subordinated Percentage of the Mortgage Pool Principal Balance with
respect to Subgroup 1 if such Distribution Date occurs between and including
April 2012 and March 2013, (b) 35% of the related Original Subordinated
Principal Balance if such Distribution Date occurs between and including April


                                      -35-

<PAGE>


2013 and March 2014, (c) 40% of the related Original Subordinated Principal
Balance if such Distribution Date occurs between and including April 2014 and
March 2015, (d) 45% of the related Original Subordinated Principal Balance if
such Distribution Date occurs between and including April 2015 and March 2016,
and (e) 50% of the related Original Subordinated Principal Balance if such
Distribution Date occurs during or after April 2016.

     Non-PO Subgroup 1 Principal Balance: As of any Distribution Date, (a) the
Non-PO Subgroup 1 Principal Balance for the immediately preceding Distribution
Date less (b) amounts distributed (or deemed distributed) to the Subgroup 1
Certificateholders on such preceding Distribution Date allocable to principal
(including the principal portion of Monthly Advances of the Servicer made
pursuant to Section 6.05 and Realized Losses allocated to the Subgroup 1
Certificates pursuant to Section 6.02); provided that the Non-PO Subgroup 1
Principal Balance on the first Distribution Date shall be the initial Non-PO
Subgroup 1 Principal Balance.

     Non-PO Subgroup 1 Principal Payment Rules: With respect to any Distribution
Date, distributions to the Holders of the Subgroup 1 Certificates pursuant to
Section 6.01(b)(ii)(A) shall be made sequentially to the Class A-R Certificate
and then to the Class 1-A1 Certificates until the Class Certificate Balance of
each such Class has been reduced to zero.

     Non-PO Subgroup 2 Allocated Amount: At the time of any determination, the
amount derived by (i) multiplying the outstanding Principal Balance of each
Mortgage Component in Subgroup 2 on such date of determination (giving effect to
any Monthly Advances but prior to giving effect to any principal prepayments
received with respect to such Mortgage Component that have not been passed
through to Certificateholders) by the Non-PO Percentage with respect to such
Mortgage Component and (ii) summing the results.

     Non-PO Subgroup 2 Optimal Principal Amount: With respect to any
Distribution Date, the lesser of (a) the applicable Non-PO Subgroup Principal
Balance and (b) the sum of:

     (i) the Non-PO Subgroup 2 Percentage of the applicable Non-PO Percentage of
the principal portion of all Monthly Payments, whether or not received, which
were due during the related Due Period on Subgroup 2 Mortgage Loans which were
outstanding during such Due Period;

     (ii) the Non-PO Subgroup 2 Prepayment Percentage of the Non-PO Subgroup 2
Percentage of all Principal Prepayments received on any Subgroup 2 Mortgage
Component during the related Principal Prepayment Period;

     (iii) with respect to each Mortgage Component not described in (iv) below,
the Non-PO Subgroup 2 Percentage of the applicable Non-PO Percentage of the
principal portion of all Insurance Proceeds, condemnation awards and any other
cash proceeds from a source other than the applicable Mortgagor, to the extent
required to be deposited in the Master Servicer Collection Account, which were
received during the related Principal Prepayment Period with respect to a
Subgroup 2 Mortgage Loan, net of related unreimbursed Servicing Advances and net
of any portion thereof which, as to any such Mortgage Component, constitutes
Late Collections that have been the subject of a Monthly Advance on any prior
Distribution Date;

     (iv) with respect to each Subgroup 2 Mortgage Loan which has become a
Liquidated Mortgage Loan during the preceding calendar month, the lesser of
(A) the


                                       -36-

<PAGE>



     Non-PO Subgroup 2 Percentage of the applicable Non-PO Percentage of an
amount equal to the Principal Balance of such Liquidated Mortgage Loan (net of
Monthly Advances with respect to principal) as of the Due Date immediately
preceding the date on which it became a Liquidated Mortgage Loan and (B) the
Non-PO Subgroup 2 Prepayment Percentage of the applicable Non-PO Percentage of
the Net Liquidation Proceeds with respect to such liquidated Mortgage Loan (net
of any unreimbursed Monthly Advances);

     (v) with respect to each Subgroup 2 Mortgage Loan repurchased during the
related Principal Prepayment Period, an amount equal to the applicable Non-PO
Prepayment Percentage of the applicable Non-PO Percentage of the principal
portion of the Purchase Price (net of amounts with respect to which a
distribution of principal has previously been made to the applicable Non-PO
Certificateholders);

     (vi) on or after the Credit Support Depletion Date, the excess of the
Non-PO Subgroup 2 Principal Balance (calculated after giving effect to
reductions thereof on such Distribution Date with respect to the amounts
described in (i) to (v) above) over the Non-PO Subgroup 2 Allocated Amount; and

     (vii) Subsequent Recoveries.

     Non-PO Subgroup 2 Percentage: As of any Distribution Date, a fraction,
expressed as a percentage, the numerator of which is the Non-PO Subgroup 2
Principal Balance and the denominator of which is the Non-PO Subgroup 2
Allocated Amount immediately prior to the Due Date in the month of such
Distribution Date.

     Non-PO Subgroup 2 Prepayment Percentage: As of any Distribution Date up to
and including the Distribution Date in March 2012, 100%; as of any Distribution
Date in the first year thereafter, the Non-PO Subgroup 2 Percentage plus 70% of
the applicable Subordinated Percentage for such Distribution Date; as of any
Distribution Date in the second year thereafter, the Non-PO Subgroup 2
Percentage plus 60% of the applicable Subordinated Percentage for such
Distribution Date; as of any Distribution Date in the third year thereafter, the
Non-PO Subgroup 2 Percentage plus 40% of the applicable Subordinated Percentage
for such Distribution Date; as of any Distribution Date in the fourth year
thereafter, the Non-PO Subgroup 2 Percentage plus 20% of the applicable
Subordinated Percentage for such Distribution Date; and as of any Distribution
Date after the fourth year thereafter, the applicable Non-PO Percentage;
provided that, if the Non-PO Subgroup 2 Percentage as of any such Distribution
Date is greater than the Non-PO Subgroup 2 Percentage on the first Distribution
Date, the Non-PO Subgroup 2 Prepayment Percentage shall be 100%; and provided
further, however, that whenever the applicable Non-PO Percentage equals 0%, the
Non-PO Subgroup 2 Prepayment Percentage shall equal 0%; and provided further
that no reduction of the Non-PO Subgroup 2 Prepayment Percentage below the level
in effect for the most recent period shall occur with respect to any
Distribution Date unless, as of the last day of the month preceding such
Distribution Date, (i) the aggregate outstanding Principal Balance of Mortgage
Components with respect to each of the Subgroups, each taken individually,
delinquent 60 days or more (including for this purpose any Mortgage Components
in foreclosure and Mortgage Components with respect to which the related
Mortgaged Property has been acquired by the Trust Fund) does not exceed 50% of
the related Subordinated Percentage of the Mortgage Pool Principal Balance with
respect to Subgroup 2 as of


                                      -37-

<PAGE>
such date and (ii) cumulative Realized Losses with respect to any Subgroup, each
taken individually, do not exceed (a) 30% of the related Subordinated Percentage
of the Mortgage Pool Principal Balance with respect to Subgroup 2 if such
Distribution Date occurs between and including April 2012 and March 2013, (b)
35% of the related Original Subordinated Principal Balance if such Distribution
Date occurs between and including April 2013 and March 2014, (c) 40% of the
related Original Subordinated Principal Balance if such Distribution Date occurs
between and including April 2014 and March 2015, (d) 45% of the related Original
Subordinated Principal Balance if such Distribution Date occurs between and
including April 2015 and March 2016, and (e) 50% of the related Original
Subordinated Principal Balance if such Distribution Date occurs during or after
April 2016.

     Non-PO Subgroup 2 Principal Balance: As of any Distribution Date, (a) the
Non-PO Subgroup 2 Principal Balance for the immediately preceding Distribution
Date less (b) amounts distributed (or deemed distributed) to the Subgroup 2
Certificateholders on such preceding Distribution Date allocable to principal
(including the principal portion of Monthly Advances of the Servicer made
pursuant to Section 6.05 and Realized Losses allocated to the Subgroup 2
Certificates pursuant to Section 6.02); provided that the Non-PO Subgroup 2
Principal Balance on the first Distribution Date shall be the initial Non-PO
Subgroup 2 Principal Balance.

     Non-PO Subgroup 2 Principal Payment Rules:

     With respect to any Distribution Date, distributions to the Holders of the
Subgroup 2 Certificates pursuant to Section 6.01(b)(ii)(B) shall be made to the
Class 1-A2 until the Class Certificate Balance of such Class has been reduced to
zero.

     Non-PO Subgroup 3 Allocated Amount: At the time of any determination, the
amount derived by (i) multiplying the outstanding Principal Balance of each
Mortgage Component in Subgroup 3 on such date of determination (giving effect to
any Monthly Advances but prior to giving effect to any principal prepayments
received with respect to such Mortgage Component that have not been passed
through to Certificateholders) by the Non-PO Percentage with respect to such
Mortgage Component and (ii) summing the results.

     Non-PO Subgroup 3 Optimal Principal Amount: With respect to any
Distribution Date, the lesser of (a) the applicable Non-PO Subgroup Principal
Balance and (b) the sum of:

     (i) the Non-PO Subgroup 3 Percentage of the applicable Non-PO Percentage of
the principal portion of all Monthly Payments, whether or not received, which
were due during the related Due Period on Subgroup 3 Mortgage Loans which were
outstanding during such Due Period;

     (ii) the Non-PO Subgroup 3 Prepayment Percentage of the Non-PO Subgroup 3
Percentage of all Principal Prepayments received on any Subgroup 3 Mortgage
Component during the related Principal Prepayment Period;

     (iii) with respect to each Mortgage Component not described in (iv) below,
the Non-PO Subgroup 3 Percentage of the applicable Non-PO Percentage of the
principal portion of all Insurance Proceeds, condemnation awards and any other
cash proceeds from a source other than the applicable Mortgagor, to the extent
required to be deposited in the Master Servicer


                                      -38-

<PAGE>
Collection Account, which were received during the related Principal Prepayment
Period with respect to a Subgroup 3 Mortgage Loan, net of related unreimbursed
Servicing Advances and net of any portion thereof which, as to any such Mortgage
Component, constitutes Late Collections that have been the subject of an Advance
on any prior Distribution Date;

     (iv) with respect to each Subgroup 3 Mortgage Loan which has become a
Liquidated Mortgage Loan during preceding calendar month, the lesser of (A) the
Non-PO Subgroup 3 Percentage of the applicable Non-PO Percentage of an amount
equal to the Principal Balance of such Liquidated Mortgage Loan (net of Monthly
Advances with respect to principal) as of the Due Date immediately preceding the
date on which it became a Liquidated Mortgage Loan and (B) the Non-PO Subgroup 3
Prepayment Percentage of the applicable Non-PO Percentage of the Net Liquidation
Proceeds with respect to such liquidated Mortgage Loan (net of any unreimbursed
Monthly Advances);

     (v) with respect to each Subgroup 3 Mortgage Loan repurchased during the
related Principal Prepayment Period, an amount equal to the Non-PO Subgroup 3
Prepayment Percentage of the applicable Non-PO Percentage of the principal
portion of the Purchase Price (net of amounts with respect to which a
distribution of principal has previously been made to the applicable Non-PO
Certificateholders);

     (vi) on or after the Credit Support Depletion Date, the excess of the
Non-PO Subgroup 3 Principal Balance (calculated after giving effect to
reductions thereof on such Distribution Date with respect to the amounts
described in (i) to (v) above) over the Non-PO Subgroup 3 Allocated Amount; and

     (vii) Subsequent Recoveries.

     Non-PO Subgroup 3 Percentage: As of any Distribution Date, a fraction,
expressed as a percentage, the numerator of which is the Non-PO Subgroup 3
Senior Principal Balance and the denominator of which is the Non-PO Subgroup 3
Allocated Amount immediately prior to the Due Date in the month of such
Distribution Date.

     Non-PO Subgroup 3 Prepayment Percentage: As of any Distribution Date up to
and including the Distribution Date in March 2012, 100%; as of any Distribution
Date in the first year thereafter, the Non-PO Subgroup 3 Percentage plus 70% of
the applicable Subordinated Percentage for such Distribution Date; as of any
Distribution Date in the second year thereafter, the Non-PO Subgroup 3
Percentage plus 60% of the applicable Subordinated Percentage for such
Distribution Date; as of any Distribution Date in the third year thereafter, the
Non-PO Subgroup 3 Percentage plus 40% of the applicable Subordinated Percentage
for such Distribution Date; as of any Distribution Date in the fourth year
thereafter, the Non-PO Subgroup 3 Percentage plus 20% of the applicable
Subordinated Percentage for such Distribution Date; and as of any Distribution
Date after the fourth year thereafter, the Non-PO Subgroup 3 Percentage;
provided that, if the Non-PO Subgroup 3 Percentage as of any such Distribution
Date is greater than the Non-PO Subgroup 3 Percentage on the first Distribution
Date, the applicable Non-PO Prepayment Percentage shall be 100%; and provided
further, however, that whenever the Non-PO Subgroup 3 Percentage equals 0%, the
Non-PO Subgroup 3 Prepayment Percentage shall equal 0%; and provided further
that no reduction of the Non-PO Subgroup 3 Prepayment Percentage below the level
in effect for the most recent period shall occur with respect to any
Distribution Date unless,


                                      -39-

<PAGE>
as of the last day of the month preceding such Distribution Date, (i) the
aggregate outstanding Principal Balance of Mortgage Components with respect to
each of the Subgroups, each taken individually, delinquent 60 days or more
(including for this purpose any Mortgage Components in foreclosure and Mortgage
Components with respect to which the related Mortgaged Property has been
acquired by the Trust Fund) does not exceed 50% of the related Subordinated
Percentage of the Mortgage Pool Principal Balance with respect to Subgroup 3 as
of such date and (ii) cumulative Realized Losses with respect to any Subgroup,
each taken individually, do not exceed (a) 30% of the related Subordinated
Percentage of the Mortgage Pool Principal Balance with respect to Subgroup 3 if
such Distribution Date occurs between and including April 2012 and March 2013,
(b) 35% of the related Original Subordinated Principal Balance if such
Distribution Date occurs between and including April 2013 and March 2014, (c)
40% of the related Original Subordinated Principal Balance if such Distribution
Date occurs between and including April 2014 and March 2015, (d) 45% of the
related Original Subordinated Principal Balance if such Distribution Date occurs
between and including April 2015 and March 2016, and (e) 50% of the related
Original Subordinated Principal Balance if such Distribution Date occurs during
or after April 2016.

     Non-PO Subgroup 3 Principal Balance: As of any Distribution Date, (a) the
Non-PO Subgroup 3 Principal Balance for the immediately preceding Distribution
Date less (b) amounts distributed (or deemed distributed) to the Subgroup 3
Certificateholders on such preceding Distribution Date allocable to principal
(including the principal portion of Monthly Advances of the Servicer made
pursuant to Section 6.05 and Realized Losses allocated to the Subgroup 3
Certificates pursuant to Section 6.02); provided that the Non-PO Subgroup 3
Principal Balance on the first Distribution Date shall be the initial Non-PO
Subgroup 3 Principal Balance.

     Non-PO Subgroup 3 Principal Payment Rules:

     With respect to any Distribution Date up to and including the Credit
Support Depletion Date, distributions to the Holders of the Subgroup 3
Certificates pursuant to Section 6.01(b)(ii)(C) shall be made sequentially as
follows:

     (i) first, to the Class 2-A3 Certificates up to the Class 2-A3 Lockout
Principal Distribution Amount;

     (ii) second, pro rata based on the aggregate principal balance of the Class
2-A1 and Class 2-A2 Certificates and the principal balance of the Class 2-A10
Certificates (i) sequentially to the Class 2-A1 and Class 2-A2 Certificates and
(ii) to the Class 2-A10 Certificates, until the Class Certificate Balance of
each such Class has been reduced to zero; and

     (iii) third, to the Class 2-A3 Certificates, until the Class Certificate
Balance of such Class has been reduced to zero.

     On any Distribution Date after the Credit Support Depletion Date,
distributions of principal among the classes of the Subgroup 3 Certificates then
outstanding will be made pro rata based upon their respective outstanding
principal balances and not in accordance with the priorities set forth above.


                                      -40-

<PAGE>



     Non-PO Subgroup 4 Allocated Amount: At the time of any determination, the
amount derived by (i) multiplying the outstanding Principal Balance of each
Mortgage Component in Subgroup 4 on such date of determination (giving effect to
any Monthly Advances but prior to giving effect to any principal prepayments
received with respect to such Mortgage component that have not been passed
through to Certificateholders) by the Non-PO Percentage with respect to such
Mortgage Component and (ii) summing the results.

     Non-PO Subgroup 4 Optimal Principal Amount: With respect to any
Distribution Date, the lesser of (a) the applicable Non-PO Subgroup Principal
Balance and (b) the sum of:

     (i) the Non-PO Subgroup 4 Percentage of the applicable Non-PO Percentage of
the principal portion of all Monthly Payments, whether or not received, which
were due during the related Due Period on Subgroup 4 Mortgage Loans which were
outstanding during such Due Period;

     (ii) the Non-PO Subgroup 4 Prepayment Percentage of the Non-PO Subgroup 4
Percentage of all Principal Prepayments received on any Subgroup 4 Mortgage
Component during the related Principal Prepayment Period;

     (iii) with respect to each Mortgage Component not described in (iv) below,
the Non-PO Subgroup 4 Percentage of the applicable Non-PO Percentage of the
principal portion of all Insurance Proceeds, condemnation awards and any other
cash proceeds from a source other than the applicable Mortgagor, to the extent
required to be deposited in the Master Servicer Collection Account, which were
received during the related Principal Prepayment Period with respect to a
Subgroup 4 Mortgage Loan, net of related unreimbursed Servicing Advances and net
of any portion thereof which, as to any such Mortgage Component, constitutes
Late Collections that have been the subject of a Monthly Advance on any prior
Distribution Date;

     (iv) with respect to each Subgroup 4 Mortgage Loan which has become a
Liquidated Mortgage Loan during the preceding calendar month, the lesser of (A)
the Non-PO Subgroup 4 Percentage of the applicable Non-PO Percentage of an
amount equal to the Principal Balance of such Liquidated Mortgage Loan (net of
Monthly Advances with respect to principal) as of the Due Date immediately
preceding the date on which it became a Liquidated Mortgage Loan and (B) the
Non-PO Subgroup 4 Prepayment Percentage of the applicable Non-PO Percentage of
the Net Liquidation Proceeds with respect to such liquidated Mortgage Loan (net
of any unreimbursed Monthly Advances);

     (v) with respect to each Subgroup 4 Mortgage Loan repurchased during the
related Principal Prepayment Period, an amount equal to the Non-PO Subgroup 4
Prepayment Percentage of the applicable Non-PO Percentage of the principal
portion of the Purchase Price (net of amounts with respect to which a
distribution of principal has previously been made to the applicable Non-PO
Certificateholders);

     (vi) on or after the Credit Support Depletion Date, the excess of the
Non-PO Subgroup 4 Principal Balance (calculated after giving effect to
reductions thereof on such Distribution Date with respect to the amounts
described in (i) to (v) above) over the Non-PO Subgroup 4 Allocated Amount; and

     (vii) Subsequent Recoveries.


                                      -41-

<PAGE>

     Non-PO Subgroup 4 Percentage: As of any Distribution Date, a fraction,
expressed as a percentage, the numerator of which is the Non-PO Subgroup 4
Principal Balance and the denominator of which is the Non-PO Subgroup 4
Allocated Amount immediately prior to the Due Date in the month of such
Distribution Date.

     Non-PO Subgroup 4 Prepayment Percentage: As of any Distribution Date up to
and including the Distribution Date in March 2012, 100%; as of any Distribution
Date in the first year thereafter, the Non-PO Subgroup 4 Percentage plus 70% of
the applicable Subordinated Percentage for such Distribution Date; as of any
Distribution Date in the second year thereafter, the Non-PO Subgroup 4
Percentage plus 60% of the applicable Subordinated Percentage for such
Distribution Date; as of any Distribution Date in the third year thereafter, the
Non-PO Subgroup 4 Percentage plus 40% of the applicable Subordinated Percentage
for such Distribution Date; as of any Distribution Date in the fourth year
thereafter, the Non-PO Subgroup 4 Percentage plus 20% of the applicable
Subordinated Percentage for such Distribution Date; and as of any Distribution
Date after the fourth year thereafter, the Non-PO Subgroup 4 Percentage;
provided that, if the Non-PO Subgroup 4 Percentage as of any such Distribution
Date is greater than the Non-PO Subgroup 4 Percentage on the first Distribution
Date, the Non-PO Subgroup 4 Prepayment Percentage shall be 100%; and provided
further, however, that whenever the Non-PO Subgroup 4 Percentage equals 0%, the
Non-PO Subgroup 4 Prepayment Percentage shall equal 0%; and provided further
that no reduction of the Non-PO Subgroup 4 Prepayment Percentage below the level
in effect for the most recent period shall occur with respect to any
Distribution Date unless, as of the last day of the month preceding such
Distribution Date, (i) the aggregate outstanding Principal Balance of Mortgage
Components with respect to each of the Subgroups, each taken individually,
delinquent 60 days or more (including for this purpose any Mortgage Components
in foreclosure and Mortgage Components with respect to which the related
Mortgaged Property has been acquired by the Trust Fund) does not exceed 50% of
the related Subordinated Percentage of the Mortgage Pool Principal Balance with
respect to Subgroup 4 as of such date and (ii) cumulative Realized Losses
with respect to any Subgroup, each taken individually, do not exceed (a) 30% of
the related Subordinated Percentage of the Mortgage Pool Principal Balance with
respect to Subgroup 4 if such Distribution Date occurs between and including
April 2012 and March 2013, (b) 35% of the related Original Subordinated
Principal Balance if such Distribution Date occurs between and including April
2013 and March 2014, (c) 40% of the related Original Subordinated Principal
Balance if such Distribution Date occurs between and including April 2014 and
March 2015, (d) 45% of the related Original Subordinated Principal Balance if
such Distribution Date occurs between and including April 2015 and March 2016,
and (e) 50% of the related Original Subordinated Principal Balance if such
Distribution Date occurs during or after April 2016.

     Non-PO Subgroup 4 Principal Balance: As of any Distribution Date, (a) the
Non-PO Subgroup 4 Principal Balance for the immediately preceding Distribution
Date less (b) amounts distributed (or deemed distributed) to the Subgroup 4
Certificateholders on such preceding Distribution Date allocable to principal
(including the principal portion of Monthly Advances of the Servicer made
pursuant to Section 6.05 and Realized Losses allocated to the Subgroup 4
Certificates pursuant to Section 6.02); provided that the Non-PO Subgroup 4
Principal Balance on the first Distribution Date shall be the initial Non-PO
Subgroup 4 Principal Balance.


                                      -42-

<PAGE>

     Non-PO Subgroup 4 Principal Payment Rules:

     With respect to any Distribution Date up to and including the Credit
Support Depletion Date, distributions to the Holders of the Subgroup 4
Certificates pursuant to Section 6.01(b)(ii)(D) shall be made pro rata as
follows:

     (i) to the Class 2-A4 Certificates, the product of (x) the fraction,
expressed as a percentage, of the quotient of (i) the principal balance of the
Class 2-A4 Certificates and (ii) the aggregate amount of the Class 2-A4, Class
2-A6, Class 2-A7, Class 2-A8 and Class 2-A9 Certificates and (y) the Non-PO
Subgroup 4 Optimal Principal Amount until the principal balance of such class
has been reduced to zero; and

     (ii) to the Class 2-A6, Class 2-A7, Class 2-A8 and Class 2-A9 Certificates,
the product of (x) the fraction, expressed as a percentage, of the quotient of
(i) the sum of the principal balances of the Class 2-A6, Class 2-A7, Class 2-A8
and Class 2-A9 Certificates and (ii) the aggregate amount of the Class 2-A4,
Class 2-A6, Class 2-A7, Class 2-A8 and Class 2-A9 Certificates and (y) the
Non-PO Subgroup 4 Optimal Principal Amount until the principal balance of such
class has been reduced to zero, sequentially, as follows:

          First, to the Class 2-A9 Certificates up to the Class 2-A9 Lockout
     Principal Distribution Amount ;

          Second, to the Class 2-A7 Certificates, $1,000 until the principal
     balance of such class has been reduced to zero;

          Third, to the Class 2-A6 Certificates, beginning in October 2007, an
     amount equal to $769,500 until the earlier of (i) the Distribution Date on
     which the principal balance of the Class 2-A7 Certificates has been reduced
     to zero and (ii) the Distribution Date on which the principal balance of
      the Class 2-A6 Certificates has been reduced to zero; and

          Fourth, sequentially, to the Class 2-A7, Class 2-A6, Class 2-A8 and
     Class 2-A9 Certificates, until the principal balance of each such class has
     been reduced to zero.

     On any Distribution Date after the Credit Support Depletion Date,
distributions of principal among the classes of the Subgroup 4 Certificates then
outstanding will be made pro rata based upon their respective outstanding
principal balances and not in accordance with the priorities set forth above.

     Nonrecoverable Advance: With respect to any Mortgage Loan any advance or
Monthly Advance (i) which was previously made or is proposed to be made by the
applicable Servicer, or the Master Servicer as successor Servicer, or the
Trustee as successor Master Servicer and (ii) which, in the good faith judgment
of the applicable Servicer, the Master Servicer or the Trustee, will not or, in
the case of a proposed advance or Monthly Advance, would not, be ultimately
recoverable by the applicable Servicer, the Master Servicer or the Trustee (as
successor Master Servicer) from Liquidation Proceeds, Insurance Proceeds or
future payments on the Mortgage Loan for which such advance or Monthly Advance
was made.


                                       -43-

<PAGE>

     Offered Certificate: Any Senior Certificate or Offered Subordinate
Certificate issued hereunder.

     Offered Subordinate Certificates: The Class M-l, Class M-2 and Class M-3
Certificates.

     Officer's Certificate: A certificate signed by the Chairman of the Board,
the Vice Chairman of the Board, the President or a Vice President or Assistant
Vice President or other authorized officer of the Master Servicer or the
Depositor, as applicable, and delivered to the Trustee, as required by this
Agreement.

     Opinion of Counsel: A written opinion of counsel who is or are acceptable
to the Trustee and who, unless required to be Independent (an "Opinion of
Independent Counsel"), may be internal counsel for the Master Servicer or the
Depositor.

     Optional Termination: The termination hereunder of that portion of the
Trust Fund related to the Certificates pursuant to Section 10.01(a) hereof.

     Optional Termination Amount: The amount received by the Securities
Administrator in connection with any purchase of all of the Mortgage Loans and
REO Properties pursuant to Section 10.01(b) hereof.

     Optional Termination Price: On any date after the Initial Optional
Termination Date, an amount equal to the sum of (A) the aggregate Stated
Principal Balance of each Mortgage Loan (other than any Mortgage Loan that has
become an REO Property) as of the Distribution Date on which the proceeds of the
Optional Termination are distributed to the Certificateholders, plus accrued
interest thereon at the applicable Mortgage Interest Rate as of the Due Date
preceding the Distribution Date on which the proceeds of the Optional
Termination are distributed to Certificateholders and the fair market value of
any REO Property, plus accrued interest thereon as of the Distribution Date on
which the proceeds of the Optional Termination are distributed to
Certificateholders, (B) any unreimbursed out-of-pocket costs, fees and expenses
and indemnity amounts owed to the Master Servicer, the Trustee or the Securities
Administrator (including any amounts incurred by the Securities Administrator in
connection with conducting the Auction), a Servicer or the Master Servicer and
any unpaid or unreimbursed Servicing Fees, Monthly Advances and Servicing
Advances, (C) any unreimbursed costs, penalties and/or damages incurred by the
Trust Fund in connection with any violation relating to any of the Mortgage
Loans of any predatory or abusive lending law and (D) in the event an Auction
has been conducted, all reasonable fees and expenses incurred by the Securities
Administrator to conduct the Auction.

     Original Class IO-1 Notional Amount: The Class Certificate Balance of the
Class IO-1 Certificates on the Closing Date, as set forth opposite such Class in
the Preliminary Statement.

     Original Class IO-2 Notional Amount: The Class Certificate Balance of the
Class IO-2 Certificates on the Closing Date, as set forth opposite such Class in
the Preliminary Statement.

     Original Credit Support: With respect to any Class of Subordinate
Certificates (other than the Class B-3 Certificates), the level of Credit
Support indicated below:


                                      -44-

<PAGE>

                         Class A:    5.90%
                         Class M-1: 2.90%
                         Class M-2: 1.90%
                         Class M-3: 1.20%
                         Class B-1: 0.70%
                         Class B-2: 0.35%

     Original Subgroup 1 Principal Balance: $14,203,948.21.

     Original Subgroup 2 Principal Balance: $71,177,333.39.

     Original Subgroup 3 Principal Balance: $60,882,640.49.

     Original Subgroup 4 Principal Balance: $298,640,375.95.

     Original Subordinated Principal Balance: The sum of the Subgroup 1
Subordinated Amount, the initial Subgroup 2 Subordinated Amount, the initial
Subgroup 3 Subordinated Amount, or the initial Subgroup 4 Subordinated Amount as
of the Closing Date.

     Original Value: The lesser of (i) the Appraised Value or (ii) the sales
price of a Mortgaged Property at the time of origination of a Mortgage Loan,
except in instances where either clauses (i) or (ii) is unavailable, the other
may be used to determine the Original Value, or if both clauses (i) and (ii) are
unavailable, Original Value may be determined from other sources reasonably
acceptable to the Depositor.

     Outstanding Mortgage Loan: With respect to any Due Date, a Mortgage Loan
which, prior to such Due Date, was not the subject of a Principal Prepayment in
Full, did not become a Liquidated Mortgage Loan and was not purchased or
replaced.

     Outstanding Principal Balance: As of the time of any determination, the
principal balance of a Mortgage Loan remaining to be paid by the Mortgagor, or,
in the case of an REO Property, the principal balance of the related Mortgage
Loan remaining to be paid by the Mortgagor at the time such property was
acquired by the Trust Fund less any Net Liquidation Proceeds with respect
thereto to the extent applied to principal.

     Overcollateralized Subgroup: As defined in Section 6.01(b)(x)(B).

     Ownership Interest: As to any Certificate, any ownership or security
interest in such Certificate, including any interest in such Certificate as the
Holder thereof and any other interest therein, whether direct or indirect, legal
or beneficial, as owner or as pledgee.

     Paying Agent: The Securities Administrator or any successor Paying Agent
appointed by the Securities Administrator.

     Percentage Interest: With respect to any Certificate (other than the Class
P Certificates), a fraction, expressed as a percentage, the numerator of which
is the Initial Class Certificate Balance (or Class IO Notional Amount in the
case of the Class IO Certificates) represented by such Certificate and the
denominator of which is the Initial Class Certificate Balance (or Class


                                      -45-

<PAGE>

IO Notional Amount in the case of the Class IO Certificates) of the related
Class. With respect to the Class P Certificates, the Percentage Interest
evidenced thereby shall be as specified on the face thereof, or otherwise, be
equal to 100%.

     Permitted Investments: Any one or more of the following obligations or
securities held in the name of the Trustee for the benefit of the
Certificateholders (provided that such obligation or security must be a
"permitted investment" within the meaning of such term as provided for in
Section 860G(a)(5) of the Code):

          (i) direct obligations of, and obligations the timely payment of which
     are fully guaranteed by the United States of America or any agency or
     instrumentality of the United States of America the obligations of which
     are backed by the full faith and credit of the United States of America;

          (ii) (a) demand or time deposits, federal funds or bankers'
     acceptances issued by any depository institution or trust company
     incorporated under the laws of the United States of America or any state
     thereof (including the Trustee or the Master Servicer or its Affiliates
     acting in its commercial banking capacity) and subject to supervision and
     examination by federal and/or state banking authorities, provided that the
     commercial paper and/or the short-term debt rating and/or the long-term
     unsecured debt obligations of such depository institution or trust company
     at the time of such investment or contractual commitment providing for such
     investment have the Applicable Credit Rating or better from each Rating
     Agency and (b) any other demand or time deposit or certificate of deposit
     that is fully insured by the Federal Deposit Insurance Corporation;

          (iii) repurchase obligations with respect to (a) any security
     described in clause (i) above or (b) any other security issued or
     guaranteed by an agency or instrumentality of the United States of America,
     the obligations of which are backed by the full faith and credit of the
     United States of America, in either case entered into with a depository
     institution or trust company (acting as principal) described in clause
     (ii)(a) above where the Trustee holds the security therefor;

          (iv) securities bearing interest or sold at a discount issued by any
     corporation (including the Trustee or the Master Servicer or its
     Affiliates) incorporated under the laws of the United States of America or
     any state thereof that have the Applicable Credit Rating or better from
     each Rating Agency at the time of such investment or contractual commitment
     providing for such investment; provided, however, that securities issued by
     any particular corporation will not be Permitted Investments to the extent
     that investments therein will cause the then outstanding principal amount
     of securities issued by such corporation and held as part of the Issuing
     Entity to exceed 10% of the aggregate Outstanding Principal Balances of all
     the Mortgage Loans and Permitted Investments held as part of the Issuing
     Entity;

          (v) commercial paper (including both non-interest-bearing discount
     obligations and interest-bearing obligations payable on demand or on a
     specified date not more than one year after the date of issuance thereof)
     having the Applicable Credit Rating or better from each Rating Agency at
     the time of such investment;


                                      -46-

<PAGE>

          (vi) a Reinvestment Agreement issued by any bank, insurance company or
     other corporation or entity;

          (vii) any other demand, money market or time deposit, obligation,
     security or investment as may be acceptable to either Rating Agency as
     evidenced in writing by each Rating Agency to the Trustee or Master
     Servicer;

          (viii) any money market or common trust fund having the Applicable
     Credit Rating or better from each Rating Agency (if such fund is rated by
     each Rating Agency), including any such fund for which the Trustee or
     Master Servicer or any affiliate of the Trustee or Master Servicer acts as
     a manager or an advisor; provided, however, that no instrument or security
     shall be a Permitted Investment if such instrument or security evidences a
     right to receive only interest payments with respect to the obligations
     underlying such instrument or if such security provides for payment of both
     principal and interest with a yield to maturity in excess of 120% of the
     yield to maturity at par or if such instrument or security is purchased at
     a price greater than par; and

          (ix) units of a taxable money-market portfolio having the highest
     rating assigned by each Rating Agency (except if S&P is a Rating Agency,
     "AAAm" or "AAAM-G" by S&P) and restricted to obligations issued or
      guaranteed by the United States of America or entities whose obligations
     are backed by the full faith and credit of the United States of America and
     repurchase agreements collateralized by such obligations.

     Permitted Transferee: Any Person other than a Disqualified Organization or
an "electing large partnership" (as defined by Section 775 of the Code).

     Person: Any individual, corporation, partnership, joint venture,
association, limited liability company, joint-stock company, trust,
unincorporated organization or government or any agency or political subdivision
thereof.

     PHH: PHH Mortgage Corporation, or any successor thereto.

     PHH Assignment Agreement: The Assignment, Assumption and Recognition
Agreement, dated as of March 1, 2007, among PHH Mortgage Corporation, the
Depositor and the Seller pursuant to which the PHH Servicing Agreement and the
rights of the Seller thereunder (other than the rights to enforce the
representations and warranties with respect to the PHH Mortgage Loans) were
assigned to the Depositor for the benefit of the Certificateholders.

     PHH Mortgage Loans: The Mortgage Loans serviced by PHH pursuant to the PHH
Servicing Agreement.

     PHH Servicing Agreement: The Mortgage Loan Flow Purchase, Sale and
Servicing Agreement, dated as of March 27, 2001, between Merrill Lynch Mortgage
Capital Inc., Bishop's Gate Residential Mortgage Trust (formerly known as
Cendant Residential Mortgage Trust) and Cendant Mortgage Corporation (as amended
and in effect at any time).


                                      -47-

<PAGE>

     Physical Certificate: The Residual Certificate.

     PO Percentage: With respect to each Mortgage Loan in any Subgroup, a
fraction, expressed as a percentage (but not less than 0%), the numerator of
which will equal the excess, if any, of the applicable Remittance Rate over the
applicable Net Mortgage Rate, and the denominator of which will equal the
applicable Remittance Rate. The PO Percentage will be 0% with respect to
Mortgage Loans for which the Net Mortgage Rate is greater than or equal to the
applicable Remittance Rate.

     Pooling and Servicing Agreement: This Pooling and Servicing Agreement
relating to the Mortgage Pass-Through Certificates, MANA Series 2007-F1.

     Prepayment Assumption: A rate or rates of prepayment, as described in the
Prospectus Supplement related to the Offered Certificates.

     Prepayment Charge: With respect to any Principal Prepayment Period, any
prepayment premium, charge or other amount payable by a Mortgagor in connection
with any Principal Prepayment on the Prepayment Charge Mortgage Loans.

     Prepayment Charge Mortgage Loans: Any of the Mortgage Loans that are
subject to existing prepayment premiums.

     Prepayment Interest Shortfall: As to any Distribution Date and any Mortgage
Loan (other than a Mortgage Loan relating to an REO Property) that was the
subject of (a) a Principal Prepayment in Full during the related Principal
Prepayment Period, an amount equal to the excess of one month's interest at the
Net Mortgage Rate on the Stated Principal Balance of such Mortgage Loan over the
amount of interest (adjusted to the Net Mortgage Rate) paid by the Mortgagor for
such Principal Prepayment Period to the date of such Principal Prepayment in
Full or (b) a Curtailment during the prior calendar month, an amount equal to
one month's interest at the Net Mortgage Rate on the amount of such Curtailment.
The obligations of the Master Servicer in respect of any Prepayment Interest
Shortfall are set forth in Section 6.06.

     Primary Mortgage Insurance Policy: Any primary mortgage guaranty insurance
policy issued in connection with a Mortgage Loan which provides compensation to
a Mortgage Note holder in the event of default by the obligor under such
Mortgage Note or the related Security Instrument, if any or any replacement
policy therefor through the related Accrual Period for such Class relating to a
Distribution Date.

     Principal Balance: At the time of any determination, the principal balance
of a Mortgage Loan or Mortgage Component remaining to be paid at the close of
business on the Cut-off Date (after deduction of all principal payments due on
or before the Cut-off Date whether or not paid) (or, in the case of a substitute
Mortgage Loan included in the Trust Fund pursuant to the Mortgage Loan Purchase
Agreement or Section 2.04, the close of business as of the date of substitution)
reduced by all amounts previously distributed to Certificateholders that are


                                      -48-

<PAGE>
  allocable to payments of principal on such Mortgage Loan or Mortgage Component
(including the principal portion of Monthly Advances of the Servicer made
pursuant to Section 6.05(d)).

     Principal Prepayment: Any Principal Prepayment in full or Curtailment or
other recovery of principal on a Mortgage Loan which is received in advance of
its scheduled Due Date to the extent that it is not accompanied by an amount as
to interest representing scheduled interest due on any date or dates in any
month or months subsequent to the month of prepayment, including Insurance
Proceeds and Repurchase Proceeds, but excluding the principal portion of Net
Liquidation Proceeds.

     Principal Prepayment in Full: Any Principal Prepayment made by a Mortgagor
of the entire unpaid principal balance of the Mortgage Loan.

     Principal Prepayment Period: With respect to principal prepayments in full
(other than with regards to Wilshire) and principal prepayments in part, the
calendar month preceding the month of such Distribution Date, and for Wilshire
and with respect to prepayments in full, the 15th day of the month preceding the
Distribution Date through the 14th of the month of the Distribution Date.

     Private Certificates: Any of the Class B-1, Class B-2, Class B-3 and Class
P Certificates.

     Prospectus Supplement: The Prospectus Supplement dated March 23, 2007,
relating to the public offering of the Offered Certificates.

     Protected Account: An account established and maintained for the benefit of
Certificateholders by each Servicer with respect to the related Mortgage Loans
and with respect to REO Property pursuant to the respective Servicing Agreement.
The Protected Account shall be an Eligible Account.

     Purchase Price: With respect to any Mortgage Loan or REO Property to be
purchased pursuant to or as contemplated by Section 2.03 or 10.01, and as
confirmed by an Officers' Certificate from the Master Servicer to the Trustee,
an amount equal to the sum of (i) 100% of the Stated Principal Balance thereof
as of the date of purchase (or such other price as provided in Section 10.01),
(ii) accrued interest on such Stated Principal Balance at the applicable
Mortgage Interest Rate in effect from time to time from the Due Date as to which
interest was last covered by a payment by the Mortgagor or an advance by the
related Servicer or Master Servicer, which payment or advance had as of the date
of purchase been distributed to Certificateholders, through the end of the
calendar month in which the purchase is to be effected less any unreimbursed
Monthly Advances and any unpaid Servicing Fees payable to the purchaser of the
Mortgage Loan and (iii) any costs and damages incurred by the Issuing Entity in
connection with any violation by such Mortgage Loan or REO Property of any
predatory or abusive-lending law.

     Qualified Insurer: Any insurance company duly qualified as such under the
laws of the state or states in which the related Mortgaged Property or Mortgaged
Properties is or are located, duly authorized and licensed in such state or
states to transact the type of insurance business in which it is engaged and
approved as an insurer by the Master Servicer, so long as the claims


                                      -49-

<PAGE>

paying ability of which is acceptable to the Rating Agencies for pass-through
certificates having the same rating as the Certificates rated by the Rating
Agencies as of the Closing Date.

     Rating Agencies: Moody's and Fitch.

     Realized Loss: With respect to a Liquidated Mortgage Loan, the amount by
which the remaining unpaid principal balance of the Mortgage Loan exceeds the
amount of Liquidation Proceeds applied to the principal balance of the related
Mortgage Loan. To the extent the Master Servicer receives Subsequent Recoveries
with respect to any Mortgage Loan, the amount of the Realized Loss with respect
to that Mortgage Loan will be reduced to the extent such recoveries are applied
to reduce the Class Certificate Balance of any Class of Certificates on any
Distribution Date.

     Realized Loss Interest Shortfall: As defined in Section 6.07(b).

     Record Date: With respect to each Distribution Date and each class of
Offered Certificates, the close of business on the last Business Day of the
month immediately preceding the month in which the related Distribution Date
occurs.

     Reference Banks: Those banks (i) with an established place of business in
London, England, (ii) not controlling, under the control of or under common
control with the Depositor or the Securities Administrator, (iii) that have been
designated as such by the Securities Administrator and (iv) that are engaged in
transactions in the London interbank market.

     Refinanced Mortgage Loan: Any Mortgage Loan the proceeds of which were not
used to purchase the related Mortgaged Property.

     Regular Certificates: Any of the Class 1-A1, Class 1-A2, Class 2-A1, Class
2-A2, Class 2-A3, Class 2-A4, Class 2-A5, Class 2-A6, Class 2-A7, Class 2-A8,
Class 2-A9, Class 2-A10, Class IO-1, Class IO-2, Class PO, Class M-1, Class M-2,
Class M-3, Class B-1, Class B-2 or Class B-3 Certificates.

     Regulation AB: Subpart 22.1100 - Asset Backed Securities (Regulation AB),
17 C.F.R. Sections 229.1100-229.1123, as such may be amended from time to time,
and subject to such clarification and interpretation as have been provided by
the Commission in the adopting release (Asset-Backed Securities, Securities Act
Release No. 33-8518, 70 Fed Reg. 1,506, 1,531 (Jan. 7, 2005) or by the staff of
the Commission, or as may be provided by the Commission or its staff from time
to time.

     Reinvestment Agreements: One or more reinvestment agreements, acceptable to
each of the Rating Agencies, from a bank, insurance company or other corporation
or entity (including the Trustee).

     Relevant Servicing Criteria: The Servicing Criteria applicable to the
various parties, as set forth on Exhibit K hereto. For clarification purposes,
multiple parties can have responsibility for the same Relevant Servicing
Criteria. With respect to a Servicing Function Participant engaged by the Master
Servicer, the Securities Administrator, the Trustee, the Custodian or a


                                      -50-

<PAGE>

Servicer, the term "Relevant Servicing Criteria" may refer to one or more
discrete functions specified in the Relevant Servicing Criteria applicable to
such parties.

     Relief Act: The Servicemembers Civil Relief Act, as amended.

     Relief Act Mortgage Loan: Any Mortgage Loan as to which the Monthly Payment
thereof has been reduced due to the application of the Relief Act.

     REMIC: Each pool of assets in the Trust Fund designated as a REMIC as
described in the Preliminary Statement.

     REMIC Interests: Any regular or residual interest in any of REMIC 1, REMIC
2 or the Upper Tier REMIC, as described in the Preliminary Statement.

     REMIC Opinion: An Opinion of Counsel to the effect that a contemplated
action will neither adversely affect the status as a REMIC of any REMIC created
hereunder nor subject any such REMIC to any tax under the REMIC Provisions.

     REMIC Provisions: The provisions of the federal income tax law relating to
real estate mortgage investment conduits, which appear at Sections 860A through
860G of Subchapter M of Chapter 1 of the Code, and related provisions, and
regulations, including proposed regulations and rulings, and administrative
pronouncements promulgated thereunder, as the foregoing may be in effect from
time to time.

     REMIC 1: As described in the Preliminary Statement.

     REMIC 1 Interest: Each class of interest in REMIC 1 as described in the
Preliminary Statement.

     REMIC 1 Regular Interest: Each of the REMIC 1 Interests other than the
Class LT1-R Interest.

     REMIC 1 Subordinate Balance Ratio: The ratio among the uncertificated
principal balances of each of the REMIC 1 Interests ending with the designation
"A" that is equal to the ratio among, with respect to each such REMIC 1
Interest, the excess of (x) the aggregate Non-PO Percentage of the Principal
Balance of each of the Mortgage Components in the related Subgroup over (y) the
aggregate Class Certificate Balance of the Certificates in the Certificate
Subgroup related to such Subgroup.

     REMIC 2: As described in the Preliminary Statement.

     REMIC 2 Interest: Each class of interest in REMIC 2 as described in the
Preliminary Statement.

     REMIC 2 Regular Interest: Each of the REMIC 2 Interests other than the
Class LT2-R Interest.


                                      -51-

<PAGE>

     Remittance Rate: With respect to each of Mortgage Group One and Mortgage
Group Two, the Mortgage Group One Remittance Rate and the Mortgage Group Two
Remittance Rate, respectively.

     REO Property: A Mortgaged Property acquired by the Servicer or Master
Servicer on behalf of the Trust Fund through foreclosure or deed-in-lieu of
foreclosure, as described in Section 3.15 in connection with a defaulted
Mortgage Loan.

     Reportable Event: As defined in Section 3.18(a).

     Reporting Servicer: As defined in Section 3.18(h).

      Repurchase Proceeds: The repurchase price in connection with any repurchase
of a Mortgage Loan by the Seller and any cash deposit in connection with the
substitution of a Mortgage Loan.

     Request for Release: A request for release in the form attached hereto as
Exhibit D.

     Required Insurance Policy: With respect to any Mortgage Loan, any insurance
policy which is required to be maintained from time to time under this Agreement
with respect to such Mortgage Loan.

     Residual Certificate: The Class A-R Certificate.

     Residual Interest: Not applicable.

     Responsible Officer: Any officer assigned to the Corporate Trust Office (or
any successor thereto), including any Vice President, Assistant Vice President,
Trust Officer, any Assistant Secretary, any trust officer or any other officer
of the Trustee or Securities Administrator customarily performing functions
similar to those performed by any of the above designated officers and having
direct responsibility for the administration of this Agreement, and any other
officer of the Trustee or Securities Administrator to whom a matter arising
hereunder may be referred because of such officers familiarity with the subject
matter thereof.

     Rule 144A Letter: The certificate to be furnished by each purchaser of a
Private Certificate (which is also a Physical Certificate) which is a Qualified
Institutional Buyer as defined under Rule 144A promulgated under the Securities
Act, substantially in the form set forth as Exhibit F-3 hereto.

     S&P: Standard and Poor's, a division of The McGraw-Hill Companies, Inc., or
its successor in interest.

     Sarbanes-Oxley Act: The Sarbanes-Oxley Act of 2002 and the rules and
regulations of the Commission promulgated thereunder (including any
interpretations thereof by the Commission's staff).


                                      -52-

<PAGE>

     Sarbanes-Oxley Certification: A written certification signed by an officer
of the Master Servicer that complies with (i) the Sarbanes-Oxley Act, and (ii)
Exchange Act Rules 13a-14(d) and 15d-14(d), as in effect from time to time;
provided that if, after the Closing Date (a) the Sarbanes-Oxley Act is amended,
(b) the Rules referred to in clause (ii) are modified or superseded by any
subsequent statement, rule or regulation of the Commission or any statement of a
division thereof, or (c) any future releases, rules and regulations are
published by the Commission from time to time pursuant to the Sarbanes-Oxley
Act, which in any such case affects the form or substance of the required
certification and results in the required certification being, in the reasonable
judgment of the Master Servicer, materially more onerous that then form of the
required certification as of the Closing Date, the Sarbanes-Oxley Certification
shall be as agreed to by the Master Servicer and the Depositor following a
negotiation in good faith to determine how to comply with any such new
requirements.

     Scheduled Payment: With respect to any Mortgage Loan and any month, the
scheduled payment or payments of principal and interest due during such month on
such Mortgage Loan which either is payable by a Mortgagor in such month under
the related Mortgage Note or, in the case of REO Property, would otherwise have
been payable under the related Mortgage Note.

     Scheduled Principal: The principal portion of any Scheduled Payment.

     Securities Act: The Securities Act of 1933, as amended.

     Securities Administrator: Wells Fargo Bank, N.A., or any successor in
interest, or any successor securities administrator appointed as herein
provided.

     Security Agreement: With respect to a Cooperative Loan, the agreement
creating a security interest in favor of the originator in the related
Cooperative Stock.

     Security Instrument: A written instrument creating a valid first lien on a
Mortgaged Property securing a Mortgage Note, which may be any applicable form of
mortgage, deed of trust, deed to secure debt or security deed, including any
riders or addenda thereto.

     Seller: Merrill Lynch Mortgage Lending, Inc., a Delaware corporation, or
any successor in interest.

     Senior Certificates: The Class 1-A1 Certificates, Class 1-A2 Certificates,
Class 2-A1 Certificates, Class 2-A2 Certificates, Class 2-A3 Certificates, Class
2-A4 Certificates, Class 2-A5 Certificates, Class 2-A6 Certificates, Class 2-A7
Certificates, Class 2-A8 Certificates, Class 2-A9 Certificates, Class 2-A10
Certificates Class IO-1 Certificates, Class IO-2 Certificates, Class A-R and
Class PO Certificates.

     Servicer: With respect to each Mortgage Loan, CitiMortgage, IndyMac, PHH,
Wachovia or Wilshire as applicable and as specified on the Mortgage Loan
Schedule.

     Servicer Remittance Date: With respect to each Mortgage Loan, the date set
forth in the related Servicing Agreement.


                                      -53-

<PAGE>
     Servicing Advances: All customary, reasonable and necessary "out of pocket"
costs and expenses incurred in the performance by a Servicer of its servicing
obligations, including, but not limited to, the cost of (1) the preservation,
inspection, restoration and protection of a Mortgaged Property, including
without limitation advances in respect of prior liens, real estate taxes and
assessments, (2) any collection, enforcement or judicial proceedings, including
without limitation foreclosures, collections and liquidations, (3) the
conservation, management, sale and liquidation of any REO Property, (4)
executing and recording instruments of satisfaction, deeds of reconveyance,
substitutions of trustees on deeds of trust or Assignments of Mortgage to the
extent not otherwise recovered from the related Mortgagors or payable under the
related Servicing Agreement, (5) correcting errors of prior servicers; costs
and expenses charged to such Servicer by the Trustee; tax tracking; title
research; flood certifications; and lender paid mortgage insurance and
(6)obtaining or correcting any legal documentation required to be included in
the Mortgage Files and reasonably necessary for a Servicer to perform its
obligations under the related Servicing Agreement.

     Servicing Agreements: The CitiMortgage Servicing Agreement, IndyMac
Servicing Agreement, PHH Servicing Agreement, Wilshire Servicing Agreement and
Wachovia Servicing Agreement.

     Servicing Criteria: The "servicing criteria" set forth in Item 1122(d) of
Regulation AB, as such may be amended from time to time.

     Servicing Fee: As to any Mortgage Loan and Distribution Date, an amount
equal to the product of (i) the Stated Principal Balance of such Mortgage Loan
as of the Due Date in the preceding calendar month and (ii) the applicable
Servicing Fee Rate. Such fee shall be payable monthly, computed on the basis of
the same principal amount and period respectively which any related interest
payment on a Mortgage Loan is computed.

     Servicing Fee Rate: As to any Mortgage Loan, a per annum rate as set forth
in the Mortgage Loan Schedule.

     Servicing Function Participant: Any Sub-Servicer, Subcontractor or any
other Person, engaged by a Servicer, the Custodian, the Master Servicer, the
Paying Agent, the Securities Administrator and the Trustee.

     Servicing Rights Owner: With respect to the Wilshire Loans, MLML, or its
transferee or assignee, in its capacity as owner of the servicing rights.

     Servicing Officer: Any officer of the Master Servicer involved in, or
responsible for, the administration and servicing of the Mortgage Loans whose
names and specimen signatures appear on a list of servicing officers furnished
to the Trustee by the Master Servicer, as such list may be amended from time to
time.

     Startup Day: The Closing Date.

     Stated Principal Balance: With respect to any Mortgage Loan and Due Date,
the unpaid principal balance of such Mortgage Loan as of such Due Date, as
specified in the amortization schedule at the time relating thereto (before any
adjustment to such amortization schedule by reason of bankruptcy or similar
proceeding or any moratorium or similar waiver or grace period), after giving
effect to any previous partial prepayments and Liquidation Proceeds received and
to the payment of principal due on such Due Date and to any reduction of the
principal balance of such Mortgage Loan by a bankruptcy court, and irrespective
of any delinquency in payment by the related Mortgagor.

     Subgroup: Any of Subgroup 1, Subgroup 2, Subgroup 3 or Subgroup 4, as the
case may be.


                                      -54-
<PAGE>

     Subgroup 1: As of the Cut-off Date, consists of (a) the Non-PO Percentage
of the Principal Balance of each Mortgage Loan with a Net Mortgage Rate less
than or equal to 5.50% per annum and (b) the portion of the Principal Balance of
each Mortgage Loan with a Net Mortgage Rate greater than 5.50% per annum and
less than or equal to 6.00% per annum allocated as follows:

                              Net Mortgage Rate - 5.50%
     Principal Balance x (1- --------------------------- )
                                        0.50%

     Subgroup 1 Certificates: The Class 1-A1 and A-R Certificates.

     Subgroup 1 Deficiency Amount: As defined in Section 6.01(b)(iii).

     Subgroup 1 Percentage: As of any Distribution Date, the percentage obtained
by dividing the Subgroup 1 Principal Balance by the outstanding principal
balance of the Mortgage Components in Subgroup 1, but not more than 100%.

     Subgroup 1 Prepayment Percentage: As of any Distribution Date up to and
including the Distribution Date in March 2012, 100%; as of any Distribution Date
in the first year thereafter, the Subgroup 1 Percentage plus 70% of the Subgroup
1 Subordinated Percentage for such Distribution Date; as of any Distribution
Date in the second year thereafter, the Subgroup 1 Percentage plus 60% of the
Subgroup 1 Subordinated Percentage for such Distribution Date; as of any
Distribution Date in the third year thereafter, the Subgroup 1 Percentage plus
40% of the Subgroup 1 Subordinated Percentage for such Distribution Date; as of
any Distribution Date in the fourth year thereafter, the Subgroup 1 Percentage
plus 20% of the Subgroup 1 Subordinated Percentage for such Distribution Date;
and as of any Distribution Date after the fourth year thereafter, the Subgroup 1
Percentage; provided that, if the Subgroup 1 Percentage as of any such
Distribution Date is greater than the Subgroup 1 Percentage on the first
Distribution Date or any other applicable Subgroup Percentage as of any such
Distribution Date is greater than the applicable Subgroup Percentage on the
first Distribution Date, the Subgroup 1 Prepayment Percentage shall be 100%; and
provided further, however, that whenever the Subgroup 1 Percentage equals 0%,
the Subgroup 1 Prepayment Percentage shall equal 0%; and provided further that
no reduction of the Subgroup 1 Prepayment Percentage below the level in effect
for the most recent period shall occur with respect to any Distribution Date
unless, as of the last day of the month preceding such Distribution Date, (i)
the aggregate outstanding Principal Balance of Mortgage Components with respect
to each of Subgroup 1, Subgroup 2, Subgroup 3, and Subgroup 4, each taken
individually, delinquent 60 days or more (including for this purpose any
Mortgage Loans in foreclosure and Mortgage Loans with respect to which the
related Mortgaged Property has been acquired by the Trust Fund) does not exceed
50% of the Subordinated Percentage of the Principal Balance of the Mortgage
Components with respect to the related Subgroup as of such date and (ii)
cumulative Realized Losses with respect to all such four Subgroups, each taken
individually, do not exceed (a) 30% of the related Original Subordinated
Principal Balance if such Distribution Date occurs in the year beginning with
and including the fifth anniversary of the first Distribution Date, (b) 35% of
the related Original Subordinated Principal Balance if such Distribution Date
occurs in the year beginning with and including the


                                      -55-

<PAGE>

sixth anniversary of the first Distribution Date, (c) 40% of the related
Original Subordinated Principal Balance if such Distribution Date occurs in the
year beginning with and including the seventh anniversary of the first
Distribution Date, (d) 45% of the related Original Subordinated Principal
Balance if such Distribution Date occurs in the year beginning with and
including the eighth anniversary of the first Distribution Date, and (e) 50% of
the related Original Subordinated Principal Balance if such Distribution Date
occurs in the year beginning with and including the ninth anniversary of the
first Distribution Date and thereafter.

     Subgroup 1 Principal Balance: As of any Distribution Date, (a) the Subgroup
1 Principal Balance for the immediately preceding Distribution Date less (b)
amounts distributed to the Subgroup 1 Certificateholders on such preceding
Distribution Date allocable to principal (including the principal portion of
Monthly Advances of the Servicer made pursuant to Section 6.05(d) and Realized
Losses allocated to the Subgroup 1 Certificates pursuant to Section 6.02) and
any losses allocated to the Subgroup 1 Certificateholders; as adjusted to
reflect any adjustments to the Outstanding Certificate Principal Balance of the
Subgroup 1 Certificates as a result of Subsequent Recoveries; provided that the
Subgroup 1 Principal Balance on the first Distribution Date will be the Original
Subgroup 1 Principal Balance.

     Subgroup 1 Remittance Rate: For any Distribution Date, a per annum rate
equal to 5.50%.

     Subgroup 1 Subordinated Amount: For any Distribution Date, the excess of
the aggregate Non-PO Percentage of the Stated Principal Balance of the Mortgage
Components in Subgroup 1 over the aggregate Outstanding Certificate Principal
Balance of the Subgroup 1 Certificates (prior to giving effect to distributions
to be made on such Distribution Date and allocation of losses on such
Distribution Date).

     Subgroup 1 Subordinated Percentage: As of any Distribution Date, the
difference between 100% and the Subgroup 1 Percentage.

     Subgroup 1 Subordinated Prepayment Percentage: As of any Distribution Date,
the difference between 100% and the Subgroup 1 Prepayment Percentage.

     Subgroup 2: As of the Cut-off Date, consists of (a) the Non-PO Percentage
of the Principal Balance of each Mortgage Loan with a Net Mortgage Rate less
than or equal to 5.50% per annum and (b) the portion of the Principal Balance of
each Mortgage Loan with a Net Mortgage Rate greater than 5.50% per annum and
less than or equal to 6.00% per annum allocated as follows:

                            Net Mortgage Rate - 5.50%
     Principal Balance x   ( ------------------------- )
                                      0.50%

     Subgroup 2 Certificates: The Class 1-A2 Certificates.

     Subgroup 2 Deficiency Amount: As defined in Section 6.01(b)(iv).


                                       -56-

<PAGE>

     Subgroup 2 Percentage: As of any Distribution Date, the percentage obtained
by dividing the Subgroup 2 Principal Balance by the outstanding principal
balance of the Mortgage Components in Subgroup 2, but not more than 100%.

     Subgroup 2 Prepayment Percentage: As of any Distribution Date up to and
including the Distribution Date in March 2012, 100%; as of any Distribution Date
in the first year thereafter, the Subgroup 2 Percentage plus 70% of the Subgroup
2 Subordinated Percentage for such Distribution Date; as of any Distribution
Date in the second year thereafter, the Subgroup 2 Percentage plus 60% of the
Subgroup 2 Subordinated Percentage for such Distribution Date; as of any
Distribution Date in the third year thereafter, the Subgroup 2 Percentage plus
40% of the Subgroup 2 Subordinated Percentage for such Distribution Date; as of
any Distribution Date in the fourth year thereafter, the Subgroup 2 Percentage
plus 20% of the Subgroup 2 Subordinated Percentage for such Distribution Date;
and as of any Distribution Date after the fourth year thereafter, the Subgroup 2
Percentage; provided that, if the Subgroup 2 Percentage as of any such
Distribution Date is greater than the Subgroup 2 Percentage on the first
Distribution Date or any other applicable Subgroup Percentage as of any such
Distribution Date is greater than the applicable Subgroup Percentage on the
first Distribution Date, the Subgroup 2 Prepayment Percentage shall be 100%; and
provided further, however, that whenever the Subgroup 2 Percentage equals 0%,
the Subgroup 2 Prepayment Percentage shall equal 0%; and provided further that
no reduction of the Subgroup 2 Prepayment Percentage below the level in effect
for the most recent period shall occur with respect to any Distribution Date
unless, as of the last day of the month preceding such Distribution Date, (i)
the aggregate outstanding Principal Balance of Mortgage Components with respect
to each of Subgroup 2, Subgroup 2, Subgroup 3, and Subgroup 4, each taken
individually, delinquent 60 days or more (including for this purpose any
Mortgage Loans in foreclosure and Mortgage Loans with respect to which the
related Mortgaged Property has been acquired by the Trust Fund) does not exceed
50% of the Subordinated Percentage of the Principal Balance of the Mortgage
Components with respect to the related Subgroup as of such date and (ii)
cumulative Realized Losses with respect to all such four Subgroups, each taken
individually, do not exceed (a) 30% of the related Original Subordinated
Principal Balance if such Distribution Date occurs in the year beginning with
and including the fifth anniversary of the first Distribution Date, (b) 35% of
the related Original Subordinated Principal Balance if such Distribution Date
occurs in the year beginning with and including the sixth anniversary of the
first Distribution Date, (c) 40% of the related Original Subordinated Principal
Balance if such Distribution Date occurs in the year beginning with and
including the seventh anniversary of the first Distribution Date, (d) 45% of the
related Original Subordinated Principal Balance if such Distribution Date occurs
in the year beginning with and including the eighth anniversary of the first
Distribution Date, and (e) 50% of the related Original Subordinated Principal
Balance if such Distribution Date occurs in the year beginning with and
including the ninth anniversary of the first Distribution Date and thereafter.

     Subgroup 2 Principal Balance: As of any Distribution Date, (a) the Subgroup
2 Principal Balance for the immediately preceding Distribution Date less (b)
amounts distributed to the Subgroup 2 Certificateholders on such preceding
Distribution Date allocable to principal (including the principal portion of
Monthly Advances of the Servicer made pursuant to Section 6.05(d) and Realized
Losses allocated to the Subgroup 2 Certificates pursuant to Section 6.02) and
any losses allocated to the Subgroup 2 Certificateholders; as adjusted to
reflect any adjustments to the Outstanding Certificate Principal Balance of the


                                      -57-

<PAGE>

Subgroup 2 Certificates as a result of Subsequent Recoveries; provided that the
Subgroup 2 Principal Balance on the first Distribution Date will be the Original
Subgroup 2 Principal Balance.

     Subgroup 2 Remittance Rate: For any Distribution Date, a per annum rate
equal to 6.00%.

     Subgroup 2 Subordinated Amount: For any Distribution Date, the excess of
the aggregate Non-PO Percentage of the Stated Principal Balance of the Mortgage
Components in Subgroup 2 over the aggregate Outstanding Certificate Principal
Balance of the Subgroup 2 Certificates (prior to giving effect to distributions
to be made on such Distribution Date and allocation of losses on such
Distribution Date).

     Subgroup 2 Subordinated Percentage: As of any Distribution Date, the
difference between 100% and the Subgroup 2 Percentage.

     Subgroup 2 Subordinated Prepayment Percentage: As of any Distribution Date,
the difference between 100% and the Subgroup 2 Prepayment Percentage.

     Subgroup 3: As of the Cut-off Date, consists of (a) the Non-PO Percentage
of the Principal Balance of each Mortgage Loan with a Net Mortgage Rate less
than or equal to 6.00% per annum and (b) the portion of the Principal Balance of
each Mortgage Loan with a Net Mortgage Rate greater than 6.00% per annum and
less than or equal to 6.25% per annum allocated as follows:

                              Net Mortgage Rate - 6.00%
     Principal Balance x (1- --------------------------- )
                                        0.25%

     Subgroup 3 Certificates: The Class 2-A1, Class 2-A2, Class 2-A3 and Class
2-A10 Certificates.

     Subgroup 3 Deficiency Amount: As defined in Section 6.01(b)(v).

     Subgroup 3 Percentage: As of any Distribution Date, the percentage obtained
by dividing the Subgroup 3 Principal Balance by the outstanding principal
balance of the Mortgage Components in Subgroup 3, but not more than 100%.

     Subgroup 3 Prepayment Percentage: As of any Distribution Date up to and
including the Distribution Date in March 2012, 100%; as of any Distribution Date
in the first year thereafter, the Subgroup 3 Percentage plus 70% of the Subgroup
3 Subordinated Percentage for such Distribution Date; as of any Distribution
Date in the second year thereafter, the Subgroup 3 Percentage plus 60% of the
Subgroup 3 Subordinated Percentage for such Distribution Date; as of any
Distribution Date in the third year thereafter, the Subgroup 3 Percentage plus
40% of the Subgroup 3 Subordinated Percentage for such Distribution Date; as of
any Distribution Date in the fourth year thereafter, the Subgroup 3 Percentage
plus 20% of the Subgroup 3 Subordinated Percentage for such Distribution Date;
and as of any Distribution Date after the fourth year


                                      -58-

<PAGE>

thereafter, the Subgroup 3 Percentage; provided that, if the Subgroup 3
Percentage as of any such Distribution Date is greater than the Subgroup 3
Percentage on the first Distribution Date or any other applicable Subgroup
Percentage as of any such Distribution Date is greater than the applicable
Subgroup Percentage on the first Distribution Date, the Subgroup 3 Prepayment
Percentage shall be 100%; and provided further, however, that whenever the
Subgroup 3 Percentage equals 0%, the Subgroup 3 Prepayment Percentage shall
equal 0%; and provided further that no reduction of the Subgroup 3 Prepayment
Percentage below the level in effect for the most recent period shall occur with
respect to any Distribution Date unless, as of the last day of the month
preceding such Distribution Date, (i) the aggregate outstanding Principal
Balance of Mortgage Components with respect to each of Subgroup 3, Subgroup 3,
Subgroup 3, and Subgroup 4, each taken individually, delinquent 60 days or more
(including for this purpose any Mortgage Loans in foreclosure and Mortgage Loans
with respect to which the related Mortgaged Property has been acquired by the
Trust Fund) does not exceed 50% of the Subordinated Percentage of the Principal
Balance of the Mortgage Components with respect to the related Subgroup as of
such date and (ii) cumulative Realized Losses with respect to all such four
Subgroups, each taken individually, do not exceed (a) 30% of the related
Original Subordinated Principal Balance if such Distribution Date occurs in the
year beginning with and including the fifth anniversary of the first
Distribution Date, (b) 35% of the related Original Subordinated Principal
Balance if such Distribution Date occurs in the year beginning with and
including the sixth anniversary of the first Distribution Date, (c) 40% of the
related Original Subordinated Principal Balance if such Distribution Date occurs
in the year beginning with and including the seventh anniversary of the first
Distribution Date, (d) 45% of the related Original Subordinated Principal
Balance if such Distribution Date occurs in the year beginning with and
including the eighth anniversary of the first Distribution Date, and (e) 50% of
the related Original Subordinated Principal Balance if such Distribution Date
occurs in the year beginning with and including the ninth anniversary of the
first Distribution Date and thereafter.

     Subgroup 3 Principal Balance: As of any Distribution Date, (a) the Subgroup
3 Principal Balance for the immediately preceding Distribution Date less (b)
amounts distributed to the Subgroup 3 Certificateholders on such preceding
Distribution Date allocable to principal (including the principal portion of
Monthly Advances of the Servicer made pursuant to Section 6.05(d) and Realized
Losses allocated to the Subgroup 3 Certificates pursuant to Section 6.02) and
any losses allocated to the Subgroup 3 Certificateholders; as adjusted to
reflect any adjustments to the Outstanding Certificate Principal Balance of the
Subgroup 3 Certificates as a result of Subsequent Recoveries; provided that the
Subgroup 3 Principal Balance on the first Distribution Date will be the Original
Subgroup 3 Principal Balance.

     Subgroup 3 Remittance Rate: For any Distribution Date, a per annum rate
equal to 6.00%.

     Subgroup 3 Subordinated Amount: For any Distribution Date, the excess of
the aggregate Non-PO Percentage of the Stated Principal Balance of the Mortgage
Components in Subgroup 3 over the aggregate Outstanding Certificate Principal
Balance of the Subgroup 3 Certificates (prior to giving effect to distributions
to be made on such Distribution Date and allocation of losses on such
Distribution Date).

     Subgroup 3 Subordinated Percentage: As of any Distribution Date, the
difference between 100% and the Subgroup 3 Percentage.


                                      -59-

<PAGE>

     Subgroup 3 Subordinated Prepayment Percentage: As of any Distribution Date,
the difference between 100% and the Subgroup 3 Prepayment Percentage.

     Subgroup 4: As of the Cut-off Date, consists of (a) the Non-PO Percentage
of the Principal Balance of each Mortgage Loan with a Net Mortgage Rate less
than or equal to 6.00% per annum and (b) the portion of the Principal Balance of
each Mortgage Loan with a Net Mortgage Rate greater than 6.00% per annum and
less than or equal to 6.25% per annum allocated as follows:

                            Net Mortgage Rate - 6.00%
     Principal Balance x ( --------------------------- )
                                      0.25%

     Subgroup 4 Certificates: The Class 2-A4, Class 2-A6, Class 2-A7, Class 2-A8
and Class 2-A9 Certificates.

     Subgroup 4 Deficiency Amount: As defined in Section 6.01(b)(vi).

     Subgroup 4 Percentage: As of any Distribution Date, the percentage obtained
by dividing the Subgroup 4 Principal Balance by the outstanding principal
balance of the Mortgage Components in Subgroup 4, but not more than 100%.

     Subgroup 4 Prepayment Percentage: As of any Distribution Date up to and
including the Distribution Date in March 2012, 100%; as of any Distribution Date
in the first year thereafter, the Subgroup 4 Percentage plus 70% of the Subgroup
4 Subordinated Percentage for such Distribution Date; as of any Distribution
Date in the second year thereafter, the Subgroup 4 Percentage plus 60% of the
Subgroup 4 Subordinated Percentage for such Distribution Date; as of any
Distribution Date in the third year thereafter, the Subgroup 4 Percentage plus
40% of the Subgroup 4 Subordinated Percentage for such Distribution Date; as of
any Distribution Date in the fourth year thereafter, the Subgroup 4 Percentage
plus 20% of the Subgroup 4 Subordinated Percentage for such Distribution Date;
and as of any Distribution Date after the fourth year thereafter, the Subgroup 4
Percentage; provided that, if the Subgroup 4 Percentage as of any such
Distribution Date is greater than the Subgroup 4 Percentage on the first
Distribution Date or any other applicable Subgroup Percentage as of any such
Distribution Date is greater than the applicable Subgroup Percentage on the
first Distribution Date, the Subgroup 4 Prepayment Percentage shall be 100%; and
provided further, however, that whenever the Subgroup 4 Percentage equals 0%,
the Subgroup 4 Prepayment Percentage shall equal 0%; and provided further that
no reduction of the Subgroup 4 Prepayment Percentage below the level in effect
for the most recent period shall occur with respect to any Distribution Date
unless, as of the last day of the month preceding such Distribution Date, (i)
the aggregate outstanding Principal Balance of Mortgage Components with respect
to each of Subgroup 4, Subgroup 4, Subgroup 4, and Subgroup 4, each taken
individually, delinquent 60 days or more (including for this purpose any
Mortgage Loans in foreclosure and Mortgage Loans with respect to which the
related Mortgaged Property has been acquired by the Trust Fund) does not exceed
50% of the Subordinated Percentage of the Principal Balance of the Mortgage
Components with respect to the related Subgroup as of such date and (ii)
cumulative Realized Losses with respect to all such four


                                      -60-
<PAGE>

Subgroups, each taken individually, do not exceed (a) 30% of the related
Original Subordinated Principal Balance if such Distribution Date occurs in the
year beginning with and including the fifth anniversary of the first
Distribution Date, (b) 35% of the related Original Subordinated Principal
Balance if such Distribution Date occurs in the year beginning with and
including the sixth anniversary of the first Distribution Date, (c) 40% of the
related Original Subordinated Principal Balance if such Distribution Date occurs
in the year beginning with and including the seventh anniversary of the first
Distribution Date, (d) 45% of the related Original Subordinated Principal
Balance if such Distribution Date occurs in the year beginning with and
including the eighth anniversary of the first Distribution Date, and (e) 50% of
the related Original Subordinated Principal Balance if such Distribution Date
occurs in the year beginning with and including the ninth anniversary of the
first Distribution Date and thereafter.

     Subgroup 4 Principal Balance: As of any Distribution Date, (a) the
Subgroup 4 Principal Balance for the immediately preceding Distribution Date
less (b) amounts distributed to the Subgroup 4 Certificateholders on such
preceding Distribution Date allocable to principal (including the principal
portion of Monthly Advances of the Servicer made pursuant to Section 6.05(d) and
Realized Losses allocated to the Subgroup 4 Certificates pursuant to
Section 6.02) and any losses allocated to the Subgroup 4 Certificateholders; as
adjusted to reflect any adjustments to the Outstanding Certificate Principal
Balance of the Subgroup 4 Certificates as a result of Subsequent Recoveries;
provided that the Subgroup 4 Principal Balance on the first Distribution Date
will be the Original Subgroup 4 Principal Balance.

     Subgroup 4 Remittance Rate: For any Distribution Date, a per annum rate
equal to 6.25%.

     Subgroup 4 Subordinated Amount: For any Distribution Date, the excess of
the aggregate Non-PO Percentage of the Stated Principal Balance of the Mortgage
Components in Subgroup 4 over the aggregate Outstanding Certificate Principal
Balance of the Subgroup 4 Certificates (prior to giving effect to distributions
to be made on such Distribution Date and allocation of losses on such
Distribution Date).

     Subgroup 4 Subordinated Percentage: As of any Distribution Date, the
difference between 100% and the Subgroup 4 Percentage.

     Subgroup 4 Subordinated Prepayment Percentage: As of any Distribution Date,
the difference between 100% and the Subgroup 4 Prepayment Percentage.

      Subgroup Remittance Rate: Any of the Subgroup 1 Remittance Rate, Subgroup 2
Remittance Rate, Subgroup 3 Remittance Rate or Subgroup 4 Remittance Rate.

     Subcontractor: Any vendor, subcontractor or other Person that is not
responsible for the overall servicing of Mortgage Loans but performs one or more
discrete functions identified in Item 1122(d) of Regulation AB with respect to
Mortgage Loans under the direction or authority of any Servicer (or a
Sub-Servicer of any Servicer), the Master Servicer, the Trustee, the Custodian
or the Securities Administrator.

     Subordinate Certificates: The Class M-1, Class M-2, Class M-3, Class B-1,
Class B-2 and Class B-3 Certificates.


                                      -61-

<PAGE>
     Subordinated Optimal Principal Amount: Generally as of any Distribution
Date, an amount, not in excess of the aggregate outstanding principal balance of
the Subordinate Certificates, equal to (1) the sum of (a) an amount equal to the
applicable Subordinated Percentage of the applicable Non-PO Percentage of the
principal portion of all Scheduled Payments whether or not received, which were
due on the related Due Date on outstanding Mortgage Components in the related
Subgroup as of such Due Date; (b) an amount equal to the applicable Subordinated
Prepayment Percentage of the applicable Non-PO Percentage of all principal
prepayments received during the related Principal Prepayment Period; (c) with
respect to each Mortgage Component not described in (d) below, an amount equal
to the applicable Subordinated Percentage of the applicable Non-PO Percentage of
the sum of the principal portion of all insurance proceeds, condemnation awards
and any other cash proceeds from a source other than the Mortgagor, to the
extent required to be deposited in the Master Servicer Collection Account, which
were received during the related Principal Prepayment Period, net of related
unreimbursed Servicing Advances and net of any portion thereof which, as to any
Mortgage Component, constitutes a late collection with respect to which a
Monthly Advance has previously been made; (d) with respect to each Mortgage
Component of a Mortgage Loan which has become a Liquidated Mortgage Loan during
the related Principal Prepayment Period, an amount equal to the portion (if any)
of the net liquidation proceeds with respect to such Liquidated Mortgage Loan
(net of any unreimbursed Monthly Advances) that was not included in the Class PO
Certificate Distribution Amount or the Non-PO Senior Optimal Principal Amount
with respect to such Distribution Date; (e) Subsequent Recoveries; and (f) with
respect to each Mortgage Component of a Mortgage Loan repurchased during the
related Principal Prepayment Period, an amount equal to the applicable
Subordinated Prepayment Percentage of the applicable Non-PO Percentage of the
principal portion of the purchase price thereof (net of amounts with respect to
which a distribution has previously been made to the Subordinate
Certificateholders), minus (2) the Class PO Shortfall Amount with respect to
such Distribution Date.

     Subordinated Percentage: The Subgroup 1 Subordinated Percentage, Subgroup 2
Subordinated Percentage, Subgroup 3 Subordinated Percentage or Subgroup 4
Subordinated Percentage, as the case may be.

     Subordinated Prepayment Percentage: The Subgroup 1 Subordinated Prepayment
Percentage, Subgroup 2 Subordinated Prepayment Percentage, Subgroup 3
Subordinated Prepayment Percentage or Subgroup 1 Subordinated Prepayment
Percentage, as the case may be.

     Subsequent Recoveries: Any amount recovered by a Servicer or the Master
Servicer (net of reimbursable expenses) with respect to a Liquidated Mortgage
Loan with respect to which a Realized Loss was incurred after the liquidation or
disposition of such Mortgage Loan.

     Sub-Servicer: Any Person that services Mortgage Loans on behalf of a
Servicer, and is responsible for the performance (whether directly or through
sub-servicers or Subcontractors) of servicing functions required to be performed
under this Agreement, any related Servicing Agreement or any sub-servicing
agreement that are identified in Item 1122(d) of Regulation AB.

     Substitute Mortgage Loan: With respect to any Mortgage Loan, which is
tendered to the Trustee pursuant to the related Servicing Agreement, the
Mortgage Loan Purchase Agreement or


                                      -62-

<PAGE>

Section 2.04 of this Agreement, as applicable, in each case, (i) which has an
Outstanding Principal Balance not greater nor materially less than the Mortgage
Loan for which it is to be substituted; (ii) which has a Mortgage Interest Rate
and Net Rate not less than, and not materially greater than, such Mortgage Loan;
(iii) which has a maturity date not materially earlier or later than such
Mortgage Loan and not later than the latest maturity date of any Mortgage Loan;
(iv) which is of the same property type and occupancy type as such Mortgage
Loan; (v) which has a Loan-to-Value Ratio not greater than the Loan-to-Value
Ratio of such Mortgage Loan; (vi) which is current in payment of principal and
interest as of the date of substitution; and (vii) as to which the payment terms
do not vary in any material respect from the payment terms of the Mortgage Loan
for which it is to be substituted.

     Tax Matters Person: The Securities Administrator or any successor thereto
or assignee thereof shall serve as tax administrator hereunder and as agent for
the Tax Matters Person. The Holder of the Residual Certificates shall be the Tax
Matters Person for the related REMIC, as more particularly set forth in Section
9.12 hereof.

     Transfer: Any direct or indirect transfer or sale of any Ownership Interest
in a certificate.

     Transferor Representation Letter: As defined in Section 5.02(b).

     Trustee: HSBC Bank USA, National Association, or its successor in interest,
or any successor trustee appointed as herein provided.

     Trust Fund: The corpus of the Issuing Entity created pursuant to Article II
of this Agreement.

     Undercollateralized Subgroup: As defined in Section 6.01(b)(x)(B).

     Underlying Seller: With respect to each Mortgage Loan, IndyMac, Ameriquest
Mortgage Company, Quicken Loans, Inc., The New York Mortgage Corporation and
Weichert, as indicated on the Mortgage Loan Schedule.

     Underwriter: Merrill Lynch, Pierce, Fenner & Smith Incorporated.

     Uninsured Cause: Any cause of damage to a Mortgaged Property or related REO
Property such that the complete restoration of such Mortgaged Property or
related REO Property is not fully reimbursable by the hazard insurance policies
required to be maintained pursuant the related Servicing Agreement, without
regard to whether or not such policy is maintained.

     United States Person: A citizen or resident of the United States, a
corporation or partnership (including an entity treated as a corporation or
partnership for federal income tax purposes) created or organized in, or under
the laws of, the United States or any state thereof or the District of Columbia
(except, in the case of a partnership, to the extent provided in regulations),
provided that, for purposes solely of the Class A-R Certificate, no partnership
or other entity treated as a partnership for United States federal income tax
purposes shall be treated as a United States Person unless all persons that own
an interest in such partnership either directly or through any entity that is
not a corporation for United States federal income tax


                                      -63-

<PAGE>

purposes are United States Persons, or an estate whose income is subject to
United States federal income tax regardless of its source, or a trust if a court
within the United States is able to exercise primary supervision over the
administration of the trust and one or more such United States Persons have the
authority to control all substantial decisions of the trust. To the extent
prescribed in regulations by the Secretary of the Treasury, which have not yet
been issued, a trust which was in existence on August 20, 1996 (other than a
trust treated as owned by the grantor under subpart E of part I of subchapter J
of chapter 1 of the Code), and which was treated as a United States person on
August 20, 1996 may elect to continue to be treated as a United States person
notwithstanding the previous sentence.

     Upper Tier REMIC: As described in the Preliminary Statement.

     Upper Tier REMIC Regular Interest: Each class of Certificates (other than
the Class A-R and Class P Certificates).

     Voting Rights: The portion of the voting rights of all of the Certificates
which is allocated to any Certificate. The Voting Rights allocated among Holders
of such Certificates outstanding shall be the fraction, expressed as a
percentage, the numerator of which is the aggregate Class Certificate Balance of
all the Certificates of such Class then outstanding and the denominator of which
is the aggregate Class Certificate Balance of all the Certificates then
outstanding. 100.00% of all Voting Rights will be allocated among all holders of
the Certificates in proportion to their then outstanding Class Certificate
Balances; provided, however, that any Certificate registered in the name of the
Master Servicer, the Depositor or the Securities Administrator or any of their
respective affiliates shall not be included in the calculation of Voting Rights.
The Class P Certificates shall have no voting rights.

     Wachovia: Wachovia Mortgage Corporation.

     Wachovia Assignment Agreement: The Assignment, Assumption and Recognition
Agreement, dated as of March 1, 2007, among Wachovia, the Depositor and the
Seller pursuant to which the Wachovia Servicing Agreement and the rights of the
Seller thereunder (other than the rights to enforce the representations and
warranties with respect to the Wachovia Loans) were assigned to the Depositor
for the benefit of the Certificateholders.

     Wachovia Loans: The Mortgage Loans serviced by Wachovia pursuant to the
Wachovia Servicing Agreement.

     Wachovia Servicing Agreement: The Seller's Purchase, Warranties and
Servicing Agreement, dated as of December 1, 2006, between Wachovia, as seller,
and MLML, as purchaser, as at any time in effect.

     Wells Fargo: Wells Fargo Bank, N.A., or any successor thereto.

     Wilshire: Wilshire Credit Corporation.

     Wilshire Servicing Agreement: The Reconstituted Servicing Agreement, dated
as of March 1, 2007, between Wilshire and the Depositor and acknowledged by
Wells Fargo, as


                                      -64-

<PAGE>

securities administrator and master servicer, pursuant to which Wilshire will
service the Wilshire Loans for the benefit of the Certificateholders.

     Wilshire Loans: The Mortgage Loans serviced by Wilshire pursuant to the
Wilshire Servicing Agreement.

     Section 1.02 Accounting.

     Unless otherwise specified herein, for the purpose of any definition or
calculation, whenever amounts are required to be netted, subtracted or added or
any distributions are taken into account such definition or calculation and any
related definitions or calculations shall be determined without duplication of
such functions.

                                   ARTICLE II
                             CONVEYANCE OF MORTGAGE
                    LOANS; ORIGINAL ISSUANCE OF CERTIFICATES

     Section 2.01 Conveyance of Mortgage Loans to Trustee.

      (a) The Depositor concurrently with the execution and delivery of this
Agreement, sells, transfers and assigns to the Issuing Entity without recourse
all its right, title and interest in and to (i) the Mortgage Loans identified in
the Mortgage Loan Schedule, including all interest and principal due with
respect to the Mortgage Loans after the Cut-off Date, but excluding any payments
of principal and interest due on or prior to the Cut-off Date; (ii) such assets
as shall from time to time be credited or are required by the terms of this
Agreement to be credited to the Master Servicer Collection Account, (iii) such
assets relating to the Mortgage Loans as from time to time may be held by the
Servicers in Protected Accounts, the Master Servicer in the Master Servicer
Collection Account and the Securities Administrator in the Distribution Account
for the benefit of the Trustee on behalf of the Certificateholders, (iv) any REO
Property, (v) the Required Insurance Policies and any amounts paid or payable by
the insurer under any Insurance Policy (to the extent the mortgagee has a claim
thereto), (vi) the Mortgage Loan Purchase Agreement to the extent provided in
Subsection 2.03(a), (vii) the rights with respect to the Servicing Agreements as
assigned to the Depositor on behalf of the Certificateholders by the Assignment
Agreements and (viii) any proceeds of the foregoing. Although it is the intent
of the parties to this Agreement that the conveyance of the Depositor's right,
title and interest in and to the Mortgage Loans and other assets in the Trust
Fund pursuant to this Agreement shall constitute a purchase and sale and not a
loan, in the event that such conveyance is deemed to be a loan, it is the intent
of the parties to this Agreement that the Depositor shall be deemed to have
granted to the Trustee a first priority perfected security interest in all of
the Depositor's right, title and interest in, to and under the Mortgage Loans
and other assets in the Trust Fund, and that this Agreement shall constitute a
security agreement under applicable law.

     (b) In connection with the above transfer and assignment, the Depositor
hereby deposits with the Trustee or the Custodian, as its agent, the following
documents or instruments

(I) with respect to each Mortgage Loan, other than a Cooperative Loan:


                                      -65-

<PAGE>

          (i) the original Mortgage Note, endorsed in the following form: "Pay
     to the order of HSBC Bank USA, National Association, as Trustee for the
     registered holders of the Merrill Lynch Mortgage Investors, Inc., Mortgage
     Pass-Through Certificates, Series 2007-F1, without recourse," with all
     prior and intervening endorsements showing a complete chain of endorsement
     from the originator to the Person so endorsing to the Trustee;

          (ii) the original recorded Mortgage or a copy of the Mortgage
     certified by the public recording office in which such Mortgage has been
     recorded;

          (iii) an original Assignment of the Mortgage executed in the following
     form: "HSBC Bank USA, National Association, as Trustee for the registered
     holders of the Merrill Lynch Mortgage Investors, Inc., Mortgage
     Pass-Through Certificates, Series 2007-F1."

          (iv) the original recorded Assignment or Assignments of the Mortgage
     showing a complete chain of assignment from the originator to the Person
     assigning the Mortgage to the Trustee as contemplated by the immediately
     preceding clause (iii), if applicable and only to the extent available to
     the Depositor with evidence of recording thereon;

          (v) the originals of all assumption, modification, consolidation or
     extension agreements, with evidence of recording thereon, if any;

          (vi) the original of any guarantee executed in connection with the
     Mortgage Note;

          (vii) the original mortgagee title insurance policy;

          (viii) the original of any security agreement, chattel mortgage or
     equivalent document executed in connection with the Mortgage; and

          (ix) the original power of attorney, if applicable.

and (II) with respect to each Mortgage Loan that is a Cooperative Loan:

          (i) the original Mortgage Note, endorsed in the following form: "Pay
     to the order of HSBC Bank USA, National Association, as Trustee for the
     registered holders of the Merrill Lynch Mortgage Investors, Inc., Mortgage
     Pass-Through Certificates, Series 2007-F1, without recourse," with all
     prior and intervening endorsements showing a complete chain of endorsement
     from the originator to the Person so endorsing to the Trustee;

          (ii) the original duly executed assignment of Security Agreement to
     the Trustee;


                                       -66-

<PAGE>

          (iii) the acknowledgment copy of the original executed Form UCC-1 (or
     certified copy thereof) with respect to the Security Agreement, and any
     required continuation statements;

          (iv) the acknowledgment copy of the original executed Form UCC-3 with
     respect to the Security Agreement, indicating the Trustee as the assignee
     of the secured party;

          (v) the stock certificate representing the Cooperative Assets
     allocated to the cooperative unit, with a stock power in blank attached;

          (vi) the original collateral assignment of the proprietary lease by
     Mortgagor to the originator;

          (vii) a copy of the recognition agreement;

          (viii) if applicable and to the extent available, the original
     intervening assignments, including warehousing assignments, if any,
     showing, to the extent available, an unbroken chain of the related Mortgage
     Loan to the Trustee, together with a copy of the related Form UCC-3 with
      evidence of filing thereon; and

          (ix) the originals of each assumption, modification or substitution
     agreement, if any, relating to the Mortgage Loan;

provided, however, that in lieu of the foregoing, the Depositor may deliver the
following documents, under the circumstances set forth below: (w) the Depositor
may deliver a Mortgage Note pursuant to (a)(i) and (b)(i) endorsed in blank,
provided that the endorsement is completed within 60 days of the Closing Date;
(x) in lieu of the original Mortgage, assignments to the Trustee or its
Custodian, as applicable, or intervening assignments thereof which have been
delivered, are being delivered or will, upon receipt of recording information
relating to the Mortgage required to be included thereon, be delivered to
recording offices for recording and have not been returned to the Depositor in
time to permit their delivery as specified above, the Depositor may deliver a
true copy thereof with a certification by the Depositor on the face of such
copy, substantially as follows: "Certified to be a true and correct copy of the
original, which has been transmitted for recording"; and (y) in lieu of the
Mortgage, assignment to the Trustee or intervening assignments thereof, if the
applicable jurisdiction retains the originals of such documents (as evidenced by
a certification from the Depositor or the Master Servicer, to such effect) the
Depositor may deliver photocopies of such documents containing an original
certification by the judicial or other governmental authority of the
jurisdiction where such documents were recorded; and provided, further, however,
that in the case of Mortgage Loans which have been prepaid in full after the
Cut-off Date and prior to the Closing Date, the Depositor, in lieu of delivering
the above documents, may deliver to the Trustee or its Custodian, as applicable,
a certification to such effect and shall deposit all amounts paid in respect of
such Mortgage Loans in the Distribution Account on the Closing Date. The
Depositor shall deliver such original documents (including any original
documents as to which certified copies had previously been delivered) to the
Trustee or its Custodian, as applicable, promptly after they are received. As of
the date hereof, recordation of the assignment of the Mortgage Loans to the


                                      -67-

<PAGE>

Trustee or the Custodian, as applicable, is not required in any state by either
Rating Agency to obtain the initial rating on the Certificates (upon which
statement the Master Servicer, the Trustee and the Custodian may each
conclusively rely).

     If any original Mortgage Note referred to in Section 2.01(b)(I)(i) or
2.01(b)(II)(x) above cannot be located, the obligations of the Depositor to
deliver such documents shall be deemed to be satisfied upon delivery to the
Trustee or its Custodian, as applicable, of a photocopy of such Mortgage Note,
if available, with a lost note affidavit. If any of the original Mortgage Notes
for which a lost note affidavit was delivered to the Trustee or its Custodian,
as applicable, is subsequently located, such original Mortgage Note shall be
delivered to the Trustee or its Custodian, as applicable, within three Business
Days.

     (c) The parties hereto agree that it is not intended that any mortgage loan
be included in the Trust Fund that is, without limitation, a "High Cost Loan" as
defined by the Home Ownership and Equity Protection Act of 1994 or any other
applicable anti-predatory lending laws, including but not limited to (i) a
"High-Cost Home Loan" as defined in the New Jersey Home Ownership Act effective
November 27, 2003, (ii) a "High-Cost Home Loan" as defined in the New Mexico
Home Loan Protection Act effective January 1, 2004, (iii) a "High Cost Home
Mortgage Loan" as defined in the Massachusetts Predatory Home Loan Practices Act
effective November 7, 2004 or (iv) a "High-Cost Home Loan" as defined by the
Indiana High Cost Home Loan Law effective January 1, 2005.

     (d) Notwithstanding anything to the contrary contained herein, the parties
hereto acknowledge that the functions of the Trustee with respect to the
custody, acceptance, inspection and release of Mortgage Files, including but not
limited to certain insurance policies and documents contemplated by Section 3.12
of this Agreement, and preparation and delivery of the certifications shall be
performed by the Custodian(s) pursuant to the terms and conditions of the
Custodial Agreement(s).

     Section 2.02 Acceptance of Mortgage Loans by Trustee.

     (a) The Trustee acknowledges the sale, transfer and assignment of the Trust
Fund to it by the Depositor and its receipt thereof, subject to further review
and the exceptions which may be noted pursuant to the procedures described
below, and declares that it, or the Custodian on its behalf, holds the documents
(or certified copies thereof) delivered to it pursuant to Section 2.01, and
declares that it will continue to hold those documents and any amendments,
replacements or supplements thereto and all other assets of the Trust Fund
delivered to it as Trustee in trust for the use and benefit of all present and
future Holders of the Certificates. On or before the Closing Date (or, with
respect to any Substitute Mortgage Loan, within five Business Days after the
receipt by the Trustee or Custodian thereof), the Trustee agrees, for the
benefit of the Certificateholders, to review or cause to be reviewed by the
Custodian on its behalf (under the Custodial Agreement), each Mortgage File
delivered to it and to execute and deliver, or cause to be executed and
delivered, to the Depositor on the Closing Date an Initial Certification. In
conducting such review, the Trustee or Custodian will certify as to each
Mortgage Loan listed in the Mortgage Loan Schedule (other than any Mortgage Loan
paid in full or any Mortgage Loan specifically identified in the exception
report annexed thereto as not being covered by such


                                      -68-

<PAGE>

certification), (i) all documents constituting part of such Mortgage File (other
than such documents described in Section 2.01(b)(I)(iii)) required to be
delivered to it pursuant to this Agreement are in its possession, provided that
with respect to the documents described in Section 2.01(b)(I)(v), (vi), (viii)
and (ix) and 2.01(b)(II)(viii) and (ix) to the extent the Trustee or the
Custodian on its behalf has actual knowledge that such documents exist, (ii)
such documents have been reviewed by it and are not torn, mutilated, defaced or
otherwise altered (except if initialed by the obligor) and appear to relate on
their face to such Mortgage Loan, (iii) based on its examination and only as to
the foregoing, the information set forth in the Mortgage Loan Schedule
corresponding to the loan number for the Mortgage Loan, the Mortgagor's name,
including the street address but excluding the zip code, the Mortgage Interest
Rate and the original principal balance of the Mortgage Loan accurately reflects
information set forth in the Mortgage File and (iv) with respect to Mortgage
Loans with a Mortgage Interest Rate subject to adjustment, the gross margin, the
lifetime cap and the periodic cap for such Mortgage Loan. In performing any such
review, the Trustee, or the Custodian, as its agent, may conclusively rely on
the purported due execution and genuineness of any such document and on the
purported genuineness of any signature thereon. Notwithstanding anything to the
contrary in this Agreement, it is herein acknowledged that, in conducting such
review, the Trustee or the Custodian on its behalf is under no duty or
obligation to inspect, review or examine any such documents, instruments,
certificates or other papers to determine whether they are genuine, enforceable,
or appropriate for the represented purpose or whether they have actually been
recorded or that they are other than what they purport to be on their face, or
to determine whether any Person executing any documents is authorized to do so
or whether any signature is genuine.

     If the Trustee or the Custodian, as its agent, finds any document
constituting part of the Mortgage File not to have been executed or received, or
to be unrelated to the Mortgage Loans identified in Exhibit B or to appear to be
defective on its face, the Trustee or the Custodian, as its agent, shall
promptly notify the Seller. In accordance with the Mortgage Loan Purchase
Agreement, the Seller shall correct or cure any such defect within ninety (90)
days from the date of notice from the Trustee or the Custodian, as its agent, of
the defect and if the Seller fails to correct or cure the defect within such
period, and such defect materially and adversely affects the interests of the
Certificateholders in the related Mortgage Loan, the Trustee, shall enforce the
Seller's obligation pursuant to the Mortgage Loan Purchase Agreement, within 90
days from the Trustee's or the Custodian's notification, to purchase such
Mortgage Loan at the Purchase Price; provided that, if such defect would cause
the Mortgage Loan to be other than a "qualified mortgage" as defined in Section
860G(a)(3) of the Code, any such cure or repurchase must occur within 90 days
from the date such breach was discovered; provided, however, that if such defect
relates solely to the inability of the Seller to deliver the original Security
Instrument or intervening assignments thereof, or a certified copy because the
originals of such documents, or a certified copy have not been returned by the
applicable jurisdiction, the Seller shall not be required to purchase such
Mortgage Loan if the Seller delivers such original documents or certified copy
promptly upon receipt, but in no event later than 360 days after the Closing
Date. The foregoing repurchase obligation shall not apply in the event that the
Seller cannot deliver such original or copy of any document submitted for
recording to the appropriate recording office in the applicable jurisdiction
because such document has not been returned by such office; provided that the
Seller shall instead deliver a recording receipt of such recording office or, if
such receipt is not available, a certificate confirming that such documents have
been accepted for


                                      -69-

<PAGE>

recording, and delivery to the Trustee or the Custodian, as its agent, shall be
effected by the Seller within thirty days of its receipt of the original
recorded document.

     (b) No later than 180 days after the Closing Date, the Trustee or the
Custodian, as its agent, will review, for the benefit of the Certificateholders,
the Mortgage Files delivered to it and will execute and deliver or cause to be
executed and delivered to the Depositor a Final Certification. In conducting
such review, the Trustee or the Custodian, as its agent, will certify as to each
Mortgage Loan listed in the Mortgage Loan Schedule (other than any Mortgage Loan
paid in full or any Mortgage Loan specifically identified in the exception
report annexed thereto as not being covered by such certification), that (i) all
documents constituting part of such Mortgage File (other than such documents
described in Section 2.01(b)(I)(v) and (ix)) required to be delivered to it
pursuant to this Agreement are in its possession, provided that with respect to
the documents described in Section 2.01(b)(I)(v), (vi), (viii) and (ix) and
2.01(b)(II)(viii) and (ix) to the extent the Trustee or the Custodian on its
behalf has actual knowledge that such documents exist, (ii) such documents have
been reviewed by it and are not torn, mutilated, defaced or otherwise altered
(except if initialed by the obligor) and appear regular on their face and relate
to such Mortgage Loan, (iii) based on its examination and only as to the
foregoing, the information set forth in the Mortgage Loan Schedule corresponding
to the loan number for the Mortgage Loan, the Mortgagor's name, including the
street address but excluding the zip code, the Mortgage Interest Rate and the
original principal balance of the Mortgage Loan accurately reflects information
set forth in the Mortgage File. In performing any such review, the Trustee, or
the Custodian, as its agent, may conclusively rely on the purported due
execution and genuineness of any such document and on the purported genuineness
of any signature thereon. Notwithstanding anything to the contrary in this
Agreement, it is herein acknowledged that, in conducting such review, the
Trustee or the Custodian on its behalf is under no duty or obligation (i) to
inspect, review or examine any such documents, instruments, certificates or
other papers to determine whether they are genuine, enforceable, or appropriate
for the represented purpose or whether they have actually been recorded or that
they are other than what they purport to be on their face, or to determine
whether any Person executing any documents is authorized to do so or whether any
signature is genuine. If the Trustee or the Custodian, as its agent, finds any
document constituting part of the Mortgage File not to have been executed or
received, or to be unrelated to the Mortgage Loans identified in Exhibit B or to
appear to be defective on its face, the Trustee or the Custodian, as its agent,
shall promptly notify the Seller. In accordance with the Mortgage Loan Purchase
Agreement, the Seller shall correct or cure any such defect within 90 days from
the date of notice from the Trustee of the defect and if the Seller is unable to
cure such defect within such period, and if such defect materially and adversely
affects the interests of the Certificateholders in the related Mortgage Loan,
the Trustee shall enforce the Seller's obligation under the Mortgage Loan
Purchase Agreement to purchase such Mortgage Loan at the Purchase Price,
provided, however, that if such defect relates solely to the inability of the
Seller to deliver the original Security Instrument or intervening assignments
thereof, or a certified copy, because the originals of such documents, or a
certified copy, have not been returned by the applicable jurisdiction, the
Seller shall not be required to purchase such Mortgage Loan, if the Seller
delivers such original documents or certified copy promptly upon receipt, but in
no event later than 360 days after the Closing Date.


                                      -70-

<PAGE>

     (c) In the event that a Mortgage Loan is purchased by the Seller in
accordance with Subsections 2.02(a) or (b) above, the Seller shall remit to the
Master Servicer the Purchase Price for deposit in the Master Servicer Collection
Account and the Seller shall provide to the Trustee written notification
detailing the components of the Purchase Price. Upon deposit of the Purchase
Price in the Master Servicer Collection Account, the Depositor shall give
written notice thereof to the Trustee and the Custodian and the Trustee or the
Custodian, as its agent (upon receipt of a Request for Release in the form of
Exhibit D attached hereto with respect to such Mortgage Loan), shall release to
the Seller the related Mortgage File and the Trustee shall execute and deliver
all instruments of transfer or assignment, without recourse, furnished to it by
the Seller as are necessary to vest in the Seller title to and rights under the
Mortgage Loan. Such purchase shall be deemed to have occurred on the date on
which the Purchase Price in available funds is received by the Trustee. The
Depositor or Master Servicer shall amend the Mortgage Loan Schedule, to reflect
such repurchase and shall promptly notify the Rating Agencies and the Master
Servicer of such amendment. The obligation of the Seller to repurchase any
Mortgage Loan as to which such a defect in a constituent document exists shall
be the sole remedy respecting such defect available to the Certificateholders or
to the Trustee on their behalf.

     Section 2.03 Assignment of Interest in the Mortgage Loan Purchase
Agreement.

     (a) The Depositor hereby assigns to the Trustee, on behalf of the
Certificateholders, all of its right, title and interest in the Mortgage Loan
Purchase Agreement, including but not limited to Depositor's rights pursuant to
the Servicing Agreements (noting that the Seller has retained the right in the
event of breach of the representations, warranties and covenants, if any, with
respect to the related Mortgage Loans of the related Servicer under the related
Servicing Agreement to enforce the provisions thereof and to seek all or any
available remedies). The obligations of the Seller to substitute or repurchase,
as applicable, a Mortgage Loan shall be the Trustee's and the
Certificateholders' sole remedy for any breach thereof. At the request of the
Trustee, the Depositor shall take such actions as may be necessary to enforce
the above right, title and interest on behalf of the Trustee and the
Certificateholders or shall execute such further documents as the Trustee may
reasonably require in order to enable the Trustee to carry out such enforcement.
With respect to the representations and warranties described in the Mortgage
Loan Purchase Agreement that are made to the best of the Seller's knowledge, if
it is discovered by any of the Depositor, the Seller, the Master Servicer, the
Securities Administrator or the Trustee that the substance of such
representation and warranty is inaccurate and such inaccuracy materially and
adversely affects the value of the related Mortgage Loan, then notwithstanding
the Seller's lack of knowledge with respect to the substance of such
representation and warranty, such inaccuracy shall be deemed a breach of the
applicable representation or warranty.

     (b) If the Depositor, the Master Servicer, Securities Administrator or the
Trustee discovers a breach of any of the representations and warranties set
forth in the Mortgage Loan Purchase Agreement, which breach materially and
adversely affects the value of the interests of Certificateholders or the
Trustee in the related Mortgage Loan, the party discovering the breach shall
give prompt written notice of the breach to the other parties. The Seller,
within 90 days of its discovery or receipt of notice that such breach has
occurred (whichever occurs earlier), shall cure the breach in all material
respects or, subject to the Mortgage Loan Purchase Agreement or Section 2.04 of
this Agreement, as applicable, shall purchase the Mortgage Loan or any property


                                      -71-

<PAGE>

acquired with respect thereto from the Trustee; provided, however, that if there
is a breach of any representation set forth in the Mortgage Loan Purchase
Agreement or Section 2.04 of this Agreement, as applicable, and the Mortgage
Loan or the related property acquired with respect thereto has been sold, then
the Seller shall pay, in lieu of the Purchase Price, any excess of the Purchase
Price over the Net Liquidation Proceeds received upon such sale. (If the Net
Liquidation Proceeds exceed the Purchase Price, any excess shall be paid to the
Seller to the extent not required by law to be paid to the borrower.) Any such
purchase by the Seller shall be made by providing an amount equal to the
Purchase Price to the Master Servicer for deposit in the Master Servicer
Collection Account and written notification detailing the components of such
Purchase Price. The Depositor shall notify the Trustee in writing of the deposit
of the Purchase Price and submit to the Trustee or the Custodian, as its agent,
a Request for Release, and the Trustee shall release, or the Trustee shall cause
the Custodian to release, to the Seller the related Mortgage File and the
Trustee shall execute and deliver all instruments of transfer or assignment
furnished to it by the Seller, without recourse, as are necessary to vest in the
Seller title to and rights under the Mortgage Loan or any property acquired with
respect thereto. Such purchase shall be deemed to have occurred on the date on
which the Purchase Price in available funds is received by the Master Servicer.
The Depositor or the Master Servicer shall amend the Mortgage Loan Schedule to
reflect such repurchase and shall promptly notify the Master Servicer and the
Rating Agencies of such amendment. Enforcement of the obligation of the Seller
to purchase (or substitute a Substitute Mortgage Loan for) any Mortgage Loan or
any property acquired with respect thereto (or pay the Purchase Price as set
forth in the above proviso) as to which a breach has occurred and is continuing
shall constitute the sole remedy respecting such breach available to the
Certificateholders or the Trustee on their behalf.

     Section 2.04 Substitution of Mortgage Loans. Notwithstanding anything to
the contrary in this Agreement, in lieu of purchasing a Mortgage Loan pursuant
to the Mortgage Loan Purchase Agreement or Sections 2.02 or 2.03 of this
Agreement, the Seller may, no later than the date by which such purchase by the
Seller would otherwise be required, tender to the Trustee a Substitute Mortgage
Loan accompanied by a certificate of an authorized officer of the Seller that
such Substitute Mortgage Loan conforms to the requirements set forth in the
definition of "Substitute Mortgage Loan" in the Mortgage Loan Purchase Agreement
or this Agreement, as applicable; provided, however, that substitution pursuant
to the Mortgage Loan Purchase Agreement or this Section 2.04, as applicable, in
lieu of purchase shall not be permitted after the termination of the two-year
period beginning on the Startup Day; provided, further, that if the breach would
cause the Mortgage Loan to be other than a "qualified mortgage" as defined in
Section 860G(a)(3) of the Code, any such cure or substitution must occur within
90 days from the date the breach was discovered. The Trustee or the Custodian,
as its agent, shall examine the Mortgage File for any Substitute Mortgage Loan
in the manner set forth in Section 2.02(a) and the Trustee or the Custodian, as
its agent, shall notify the Seller, in writing, within five Business Days after
receipt, whether or not the documents relating to the Substitute Mortgage Loan
satisfy the requirements of the third sentence of Subsection 2.02(a). Within two
Business Days after such notification, the Seller shall provide to the
Securities Administrator for deposit in the Distribution Account the amount, if
any, by which the Outstanding Principal Balance as of the next preceding Due
Date of the Mortgage Loan for which substitution is being made, after giving
effect to Scheduled Principal due on such date, exceeds the Outstanding
Principal Balance as of such date of the Substitute Mortgage Loan, after giving
effect to Scheduled Principal due on such


                                      -72-

<PAGE>

date, which amount shall be treated for the purposes of this Agreement as if it
were the payment by the Seller of the Purchase Price for the purchase of a
Mortgage Loan by the Seller. After such notification to the Seller and, if any
such excess exists, upon written notification of the receipt of such deposit,
the Trustee shall accept such Substitute Mortgage Loan which shall thereafter be
deemed to be a Mortgage Loan hereunder. In the event of such a substitution,
accrued interest on the Substitute Mortgage Loan for the month in which the
substitution occurs and any Principal Prepayments made thereon during such month
shall be the property of the Issuing Entity and accrued interest for such month
on the Mortgage Loan for which the substitution is made and any Principal
Prepayments made thereon during such month shall be the property of the Seller.
The Scheduled Principal on a Substitute Mortgage Loan due on the Due Date in the
month of substitution shall be the property of the Seller and the Scheduled
Principal on the Mortgage Loan for which the substitution is made due on such
Due Date shall be the property of the Issuing Entity. Upon acceptance of the
Substitute Mortgage Loan (and delivery to the Trustee or Custodian of a Request
for Release for such Mortgage Loan), the Trustee shall release to the Seller the
related Mortgage File related to any Mortgage Loan released pursuant to the
Mortgage Loan Purchase Agreement or Section 2.04 of this Agreement, as
applicable, and shall execute and deliver all instruments of transfer or
assignment, without recourse, in form as provided to it as are necessary to vest
in the Seller title to and rights under any Mortgage Loan released pursuant to
the Mortgage Loan Purchase Agreement or this Section 2.04, as applicable. The
Seller shall deliver the documents related to the Substitute Mortgage Loan in
accordance with the provisions of the Mortgage Loan Purchase Agreement or
Subsections 2.01(b) and 2.02(b) of this Agreement, as applicable, with the date
of acceptance of the Substitute Mortgage Loan deemed to be the Closing Date for
purposes of the time periods set forth in those Subsections. The representations
and warranties set forth in the Mortgage Loan Purchase Agreement shall be deemed
to have been made by the Seller with respect to each Substitute Mortgage Loan as
of the date of acceptance of such Mortgage Loan by the Trustee. The Master
Servicer shall amend the Mortgage Loan Schedule to reflect such substitution and
shall provide a copy of such amended Mortgage Loan Schedule to the Trustee and
the Rating Agencies.

     Notwithstanding any other provision of this Agreement, the right to
substitute Mortgage Loans pursuant to this Article II shall be subject to the
additional limitations that no substitution of a Mortgage Loan shall be made
unless the Securities Administrator and the Trustee shall have received an
Opinion of Counsel (at the expense of the party seeking to make the
substitution) that, under current law, such substitution will not (A) affect
adversely the status of any REMIC established hereunder as a REMIC, or of the
related "regular interests" as "regular interests" in any such REMIC, or (B)
cause any such REMIC to engage in a "prohibited transaction" or prohibited
contribution pursuant to the REMIC provisions.


                                      -73-

<PAGE>

     Section 2.05 Issuance of Certificates. The Trustee acknowledges the
assignment to it on behalf of the Issuing Entity of the Mortgage Loans and the
other assets comprising the Trust Fund and, concurrently therewith, the
Securities Administrator has signed, and countersigned and delivered to the
Depositor, in exchange therefor, Certificates in such authorized denominations
representing such Percentage Interests as the Depositor has requested. The
Trustee agrees that it will hold the Mortgage Loans and such other assets as may
from time to time be delivered to it segregated on the books of the Trustee in
trust for the benefit of the Certificateholders.

     Section 2.06 Representations and Warranties Concerning the Depositor. The
Depositor hereby represents and warrants to the Trustee, the Master Servicer and
the Securities Administrator as follows:

          (i) the Depositor (a) is a corporation duly organized, validly
     existing and in good standing under the laws of the State of Delaware and
     (b) is qualified and in good standing as a foreign corporation to do
      business in each jurisdiction where such qualification is necessary, except
     where the failure so to qualify would not reasonably be expected to have a
     material adverse effect on the Depositor's business as presently conducted
     or on the Depositor's ability to enter into this Agreement and to
     consummate the transactions contemplated hereby;

          (ii) the Depositor has full corporate power to own its property, to
     carry on its business as presently conducted and to enter into and perform
     its obligations under this Agreement;

          (iii) the execution and delivery by the Depositor of this Agreement
     have been duly authorized by all necessary corporate action on the part of
     the Depositor; and neither the execution and delivery of this Agreement,
     nor the consummation of the transactions herein contemplated, nor
     compliance with the provisions hereof, will conflict with or result in a
     breach of, or constitute a default under, any of the provisions of any law,
     governmental rule, regulation, judgment, decree or order binding on the
     Depositor or its properties or the articles of incorporation or by-laws of
     the Depositor, except those conflicts, breaches or defaults which would not
     reasonably be expected to have a material adverse effect on the Depositor's
     ability to enter into this Agreement and to consummate the transactions
     contemplated hereby;

          (iv) the execution, delivery and performance by the Depositor of this
     Agreement and the consummation of the transactions contemplated hereby do
     not require the consent or approval of, the giving of notice to, the
     registration with, or the taking of any other action in respect of, any
     state, federal or other governmental authority or agency, except those
     consents, approvals, notices, registrations or other actions as have
     already been obtained, given or made;

          (v) this Agreement has been duly executed and delivered by the
     Depositor and, assuming due authorization, execution and delivery by the
     other parties hereto, constitutes a valid and binding obligation of the
     Depositor enforceable against it in


                                      -74-

<PAGE>

     accordance with its terms (subject to applicable bankruptcy and insolvency
     laws and other similar laws affecting the enforcement of the rights of
     creditors generally);

          (vi) there are no actions, suits or proceedings pending or, to the
     knowledge of the Depositor, threatened against the Depositor, before or by
     any court, administrative agency, arbitrator or governmental body (i) with
     respect to any of the transactions contemplated by this Agreement or (ii)
     with respect to any other matter which in the judgment of the Depositor
     will be determined adversely to the Depositor and will if determined
     adversely to the Depositor materially and adversely affect the Depositor's
     ability to enter into this Agreement or perform its obligations under this
     Agreement; and the Depositor is not in default with respect to any order of
     any court, administrative agency, arbitrator or governmental body so as to
     materially and adversely affect the transactions contemplated by this
     Agreement; and

          (vii) immediately prior to the transfer and assignment to the Trustee,
     each Mortgage Note and each Mortgage were not subject to an assignment or
     pledge, and the Depositor had good and marketable title to and was the sole
     owner thereof and had full right to transfer and sell such Mortgage Loan to
     the Trustee free and clear of any encumbrance, equity, lien, pledge,
     charge, claim or security interest.

     Section 2.07 Representations and Warranties Concerning the Master Servicer
and Securities Administrator. Wells Fargo Bank, N.A., in its capacity as Master
Servicer and Securities Administrator hereby represents and warrants to the
Seller, the Depositor and the Trustee as follows, as of the Closing Date:

          (i) It is a national banking association duly formed, validly existing
     and in good standing under the laws of the United States of America and is
     duly authorized and qualified to transact any and all business contemplated
     by this Agreement to be conducted by the Master Servicer and the Securities
     Administrator, to the extent necessary to ensure its ability to master
     service the Mortgage Loans in accordance with the terms of this Agreement
     and to perform any of its other obligations under this Agreement in
     accordance with the terms hereof;

          (ii) It has the full corporate power and authority to execute, deliver
     and perform, and to enter into and consummate the transactions contemplated
     by this Agreement and has duly authorized by all necessary corporate action
     on its part the execution, delivery and performance of this Agreement; and
     this Agreement, assuming the due authorization, execution and delivery
     hereof by the other parties hereto, constitutes its legal, valid and
     binding obligation, enforceable against it in accordance with its terms,
     except that (a) the enforceability hereof may be limited by bankruptcy,
     insolvency, moratorium, receivership and other similar laws relating to
     creditors' rights generally and (b) the remedy of specific performance and
     injunctive and other forms of equitable relief may be subject to equitable
     defenses and to the discretion of the court before which any proceeding
     therefor may be brought.

          (iii) The execution and delivery of this Agreement by it, the
     consummation of any other of the transactions contemplated by this
     Agreement, and the fulfillment of or


                                       -75-

<PAGE>

     compliance with the terms hereof are in its ordinary course of business and
     will not (A) result in a material breach of any term or provision of its
     charter or by-laws or (B) materially conflict with, result in a material
      breach, violation or acceleration of, or result in a material default
     under, the terms of any other material agreement or instrument to which it
     is a party or by which it may be bound, or (C) constitute a material
     violation of any statute, order or regulation applicable to it of any
     court, regulatory body, administrative agency or governmental body having
     jurisdiction over it; and it is not in breach or violation of any material
     indenture or other material agreement or instrument, or in violation of any
     statute, order or regulation of any court, regulatory body, administrative
     agency or governmental body having jurisdiction over it which breach or
     violation may materially impair its ability to perform or meet any of its
     obligations under this Agreement.

          (iv) No litigation is pending or, to the best of its knowledge,
     threatened, against it that would materially and adversely affect the
     execution, delivery or enforceability of this Agreement or its ability to
     perform any of its other obligations under this Agreement in accordance
     with the terms hereof.

          (v) No consent, approval, authorization or order of any court or
     governmental agency or body is required for its execution, delivery and
     performance of, or compliance with, this Agreement or the consummation of
     the transactions contemplated hereby, or if any such consent, approval,
     authorization or order is required, it has obtained the same.

                                    ARTICLE III
                 ADMINISTRATION AND SERVICING OF MORTGAGE LOANS

     Section 3.01 Master Servicer. The Master Servicer shall supervise, monitor
and oversee the obligation of the Servicers to service and administer their
respective Mortgage Loans in accordance with the terms of the applicable
Servicing Agreement and shall have full power and authority to do any and all
things which it may deem necessary or desirable in connection with such master
servicing and administration. In performing its obligations hereunder, the
Master Servicer shall act in a manner consistent with Accepted Master Servicing
Practices. Furthermore, the Master Servicer shall oversee and consult with each
Servicer as necessary from time-to-time to carry out the Master Servicer's
obligations hereunder, shall receive, review and evaluate all reports,
information and other data provided to the Master Servicer by each Servicer and
shall cause each Servicer to perform and observe the covenants, obligations and
conditions to be performed or observed by such Servicer under the applicable
Servicing Agreement. The Master Servicer shall independently and separately
monitor each Servicer's servicing activities with respect to each related
Mortgage Loan, reconcile the results of such monitoring with such information
provided in the previous sentence on a monthly basis and coordinate corrective
adjustments to the Servicers' and Master Servicer's records, and based on such
reconciled and corrected information, the Master Servicer shall provide such
information to the Securities Administrator as shall be necessary in order for
it to prepare the statements specified in Section 6.04, and prepare any other
information and statements required to be forwarded by the Master Servicer
hereunder. The Master Servicer shall reconcile the results of its monitoring
with the


                                      -76-

<PAGE>

actual remittances of the Servicers to the Master Servicer Collection Account
pursuant to the applicable Servicing Agreements.

     If the Master Servicer and the Securities Administrator are the same
entity, then at any time the Master Servicer is terminated as Master Servicer,
the Securities Administrator shall likewise be removed as securities
administrator.

     The Trustee shall furnish the Servicers and the Master Servicer with any
limited powers of attorney and other documents in form acceptable to it
necessary or appropriate to enable the Servicers and the Master Servicer to
service and administer the related Mortgage Loans and REO Property. The Trustee
shall have no liability with respect to the use of any such limited power of
attorney.

     The Trustee or the Custodian shall provide access to the records and
documentation in possession of the Trustee or the Custodian regarding the
related Mortgage Loans and REO Property and the servicing thereof to the
Certificateholders, the FDIC, and the supervisory agents and examiners of the
FDIC, such access being afforded only upon reasonable prior written request and
during normal business hours at the office of the Trustee or the Custodian;
provided, however, that, unless otherwise required by law, the Trustee or the
Custodian shall not be required to provide access to such records and
documentation if the provision thereof would violate the legal right to privacy
of any Mortgagor. The Trustee or the Custodian shall allow representatives of
the above entities to photocopy any of the records and documentation and shall
provide equipment for that purpose at a charge that covers the Trustee's or the
Custodian's actual costs.

     The Trustee shall execute and deliver to the related Servicer and the
Master Servicer upon request any court pleadings, requests for trustee's sale or
other documents necessary or desirable to (i) the foreclosure or trustee's sale
with respect to a Mortgaged Property; (ii) any legal action brought to obtain
judgment against any Mortgagor on the Mortgage Note or Security Instrument;
(iii) obtain a deficiency judgment against the Mortgagor; or (iv) enforce any
other rights or remedies provided by the Mortgage Note or Security Instrument or
otherwise available at law or equity.


                                      -77-

<PAGE>

     Section 3.02 REMIC-Related Covenants. For as long as each REMIC shall
exist, the Trustee and the Securities Administrator shall act in accordance
herewith to assure continuing treatment of such REMIC as a REMIC, and the
Trustee and the Securities Administrator shall comply with any directions of the
Depositor, the related Servicer or the Master Servicer to assure such continuing
treatment. In particular, the Trustee shall not (a) sell or permit the sale of
all or any portion of the Mortgage Loans or of any investment of deposits in an
Account unless such sale is as a result of a repurchase of the Mortgage Loans
pursuant to this Agreement or the T


 
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