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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT | Document Parties: WELLS FARGO BANK, NA | HSBC BANK USA, NATIONAL ASSOCIATION | MERRILL LYNCH MORTGAGE INVESTORS, INC You are currently viewing:
This Pooling and Servicing Agreement involves

WELLS FARGO BANK, NA | HSBC BANK USA, NATIONAL ASSOCIATION | MERRILL LYNCH MORTGAGE INVESTORS, INC

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 4/13/2007

POOLING AND SERVICING AGREEMENT, Parties: wells fargo bank  na , hsbc bank usa  national association , merrill lynch mortgage investors  inc
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<PAGE>

                                                                     Exhibit 4.1

                                                                  EXECUTION COPY

                     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, MLMBS Series 2007-1

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                           <C>
ARTICLE I DEFINITIONS....................................................       7
   Section 1.02     Accounting............................................      51
ARTICLE II CONVEYANCE OF MORTGAGE LOANS; ORIGINAL ISSUANCE OF
              CERTIFICATES...............................................      52
   Section 2.01     Conveyance of Mortgage Loans to Trustee...............      52
   Section 2.02     Acceptance of Mortgage Loans by Trustee...............      55
   Section 2.03     Assignment of Interest in the Mortgage Loan Purchase
                   Agreement.............................................      58
   Section 2.04     Substitution of Mortgage Loans........................      59
   Section 2.05     Issuance of Certificates..............................      61
   Section 2.06     Representations and Warranties Concerning the
                   Depositor.............................................      61
   Section 2.07     Representations and Warranties Concerning the Master
                   Servicer and Securities Administrator.................      62

ARTICLE III ADMINISTRATION AND SERVICING OF MORTGAGE LOANS...............      64
   Section 3.01     Master Servicer.......................................      64
   Section 3.02     REMIC-Related Covenants...............................      65
   Section 3.03     Monitoring of Servicers...............................      65
   Section 3.04     Fidelity Bond.........................................      66
   Section 3.05     Power to Act; Procedures..............................      66
   Section 3.06     Due-on-Sale Clauses; Assumption Agreements............      67
   Section 3.07     Release of Mortgage Files.............................      67
   Section 3.08     Documents, Records and Funds in Possession of Master
                   Servicer To Be Held for Trustee.......................      68
   Section 3.09     Standard Hazard Insurance and Flood Insurance
                   Policies..............................................      69
   Section 3.10     Presentment of Claims and Collection of Proceeds......      69
   Section 3.11     Maintenance of the Primary Mortgage Insurance
                   Policies..............................................      70
   Section 3.12     Trustee to Retain Possession of Certain Insurance
                   Policies and Documents................................      70
   Section 3.13     Realization Upon Defaulted Mortgage Loans.............      71
   Section 3.14     Compensation for the Master Servicer..................      71
   Section 3.15     REO Property..........................................      71
   Section 3.16     Annual Statement as to Compliance.....................      72
   Section 3.17     Reports on Assessment of Compliance and Attestation...      73
   Section 3.18     Periodic Filings......................................      75
   Section 3.19     Compliance with Regulation AB.........................      82

ARTICLE IV ACCOUNTS......................................................      83
   Section 4.01     Protected Accounts....................................      83
   Section 4.02     Master Servicer Collection Account....................      84
   Section 4.03     Permitted Withdrawals and Transfers from the Master
                   Servicer Collection Account...........................      85
</TABLE>

<PAGE>

<TABLE>
<S>                                                                          <C>
   Section 4.04     Distribution Account..................................      86
   Section 4.05     Permitted Withdrawals and Transfers from the
                   Distribution Account..................................      86
   Section 4.06     Reserve Account.......................................      88

ARTICLE V CERTIFICATES...................................................      90
   Section 5.01     The Certificates......................................      90
   Section 5.02     Certificate Register; Registration of Transfer and
                    Exchange of Certificates..............................      90
   Section 5.03     Mutilated, Destroyed, Lost or Stolen Certificates.....      94
   Section 5.04     Persons Deemed Owners.................................      95
   Section 5.05     Access to List of Certificateholders' Names and
                   Addresses.............................................      95
   Section 5.06     Book-Entry Certificates...............................      95
   Section 5.07     Notices to Depository.................................      96
   Section 5.08     Definitive Certificates...............................      96
   Section 5.09     Maintenance of Office or Agency.......................      97

ARTICLE VI PAYMENTS TO CERTIFICATEHOLDERS................................      98
   Section 6.01     Distributions on the Certificates.....................      98
   Section 6.02     Allocation of Losses..................................     103
   Section 6.03     Payments..............................................      104
   Section 6.04     Statements to Certificateholders......................     104
   Section 6.05     Monthly Advances......................................     107
   Section 6.06     Compensating Interest Payments........................     107

ARTICLE VII THE MASTER SERVICER AND THE DEPOSITOR........................     108
   Section 7.01     Liabilities of the Master Servicer....................     108
   Section 7.02     Merger or Consolidation of the Master Servicer........     108
   Section 7.03     Indemnification from the Master Servicer and the
                   Depositor.............................................     108
   Section 7.04     Limitations on Liability of the Master Servicer and
                   Others................................................     109
   Section 7.05     Master Servicer Not to Resign.........................     110
   Section 7.06     Successor Master Servicer.............................     110
   Section 7.07     Sale and Assignment of Master Servicing...............     110

ARTICLE VIII DEFAULT.....................................................     112
   Section 8.01     Events of Default.....................................     112
   Section 8.02     Trustee to Act; Appointment of Successor..............     113
   Section 8.03     Notification to Certificateholders....................     114
   Section 8.04     Waiver of Defaults....................................     114
   Section 8.05     List of Certificateholders............................     115

ARTICLE IX CONCERNING THE TRUSTEE AND THE SECURITIES ADMINISTRATOR.......     116
   Section 9.01     Duties of Trustee.....................................     116
   Section 9.02     Certain Matters Affecting the Trustee and the
                   Securities Administrator..............................     118
</TABLE>


                                       iii

<PAGE>

<TABLE>
<S>                                                                          <C>
   Section 9.03     Trustee and Securities Administrator Not Liable for
                   Certificates or Mortgage Loans........................     120
   Section 9.04     Trustee and Securities Administrator May Own
                   Certificates..........................................     120
   Section 9.05     Trustee's and Securities Administrator's Fees and
                   Expenses..............................................     120
   Section 9.06     Eligibility Requirements for Trustee and Securities
                   Administrator.........................................     121
   Section 9.07     Insurance.............................................     122
   Section 9.08     Resignation and Removal of the Trustee and Securities
                   Administrator.........................................     122
   Section 9.09     Successor Trustee and Successor Securities
                   Administrator.........................................     123
   Section 9.10     Merger or Consolidation of Trustee or Securities
                   Administrator.........................................     123
   Section 9.11     Appointment of Co-Trustee or Separate Trustee.........     124
   Section 9.12     Federal Information Returns and Reports to
                   Certificateholders; REMIC Administration..............      125

ARTICLE X TERMINATION....................................................     130
   Section 10.01    Termination upon Liquidation or Repurchase of all
                   Mortgage Loans........................................     130
   Section 10.02    Final Distribution on the Certificates................     131
   Section 10.03    Additional Termination Requirements...................     132

ARTICLE XI MISCELLANEOUS PROVISIONS......................................     134
   Section 11.01    Intent of Parties.....................................     134
   Section 11.02    Amendment.............................................     134
   Section 11.03    Recordation of Agreement..............................     136
   Section 11.04    Limitation on Rights of Certificateholders............     136
   Section 11.05    Acts of Certificateholders............................     136
   Section 11.06    Governing Law.........................................     138
   Section 11.07    Notices...............................................     138
   Section 11.08    Severability of Provisions............................     139
   Section 11.09    Successors and Assigns................................     139
   Section 11.10    Article and Section Headings..........................     139
   Section 11.11    Counterparts..........................................     139
   Section 11.12    Notice to Rating Agencies.............................     139
   Section 11.13    Third Party Rights....................................     139

ARTICLE XII REMIC ADMINISTRATION.........................................     140
   Section 12.01    REMIC Administration..................................     140
   Section 12.02    Prohibited Transactions and Activities................     140
   Section 12.03    Indemnification with Respect to Prohibited
                   Transactions or Loss of REMIC Status..................     140
   Section 12.04    REO Property..........................................     141
</TABLE>


                                        iv

<PAGE>

EXHIBITS
Exhibit A-1           -    Form of Class A 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-7    -    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

SCHEDULE I            -    Prepayment Penalty Mortgage Loans


                                         v

<PAGE>

                         POOLING AND SERVICING AGREEMENT

     This Pooling and Servicing Agreement is dated as of March 1, 2007 (the
"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 property being
conveyed by the Depositor to the Trustee hereunder 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
Trust Fund of the Mortgage Loans and the other property constituting the Trust
Fund. The Depositor has duly authorized the execution and delivery of this
Agreement to provide for the conveyance to the Trustee of the Mortgage Loans and
the other property constituting the Trust Fund. 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 property constituting the Trust Fund 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 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 be treated for federal income tax purposes as consisting of (i) two real
estate mortgage investment conduits (each a "REMIC" or, in the alternative,
"REMIC 1" and the "Upper Tier REMIC," respectively) in a tiered structure, (ii)
the right to receive payments distributable to the Class P Certificates and
(iii) the grantor trust described in Section 9.12 hereof . The Certificates,
other than the Class A-R and Class P Certificates, 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 and the Upper Tier REMIC.

     The Upper Tier REMIC 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 the REMIC 1 Interests and other than the
right to receive payments distributable 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 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 A-R
Certificate, other than the portion thereof representing the right to receive
payments in respect of the Class LT1-R Interest,


                                       -1-

<PAGE>

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 will also
represent the Class LT1-R Interest.

THE REMIC 1 INTERESTS

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

<TABLE>
<CAPTION>
                                        Interest          Related Loan Groups
Class Designation    Principal Balance      Rate               or Loan Group
-----------------    -----------------    --------    ------------------------------
<S>                  <C>                  <C>         <C>
LT11A                $     150,992.7331       (2)      Loan Group I
LT11B                $   3,552,582.7331        (3)      Loan Group I
LT12A                $      41,831.9635       (2)      Loan Group II
LT12B                $     984,221.9635       (4)      Loan Group II
LT1Z                 $448,950,840.2668       (2)      Loan Group I and Loan Group II
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 Class LT11A Interest, the Class LT12A Interest and the Class LT1Z
     Interest shall have an interest rate for each Distribution Date (and the
     related Interest Accrual Period) equal to the Net WAC.

(3)   The Class LT11B Interest shall have an interest rate for any Distribution
     Date (and the related Interest Accrual Period) equal to the Loan Group I
     Net WAC.

(4)   The Class LT12B Interest shall have an interest rate for any Distribution
     Date (and the related Interest Accrual Period) equal to the Loan Group II
     Net WAC.

     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.

      Principal distributions shall be deemed to be made on 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
aggregate Stated Principal Balance of the Mortgage Loans in the related Loan
Group over (y) the aggregate class principal amounts of the Certificates in the
Certificate Group related to such Loan Group (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 shall be
distributed 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 aggregate Stated Principal Balance of the
Mortgage Loans in the related Loan Group and finally, all remaining principal
amounts shall be distributed in respect of the Class LT1Z Interest. Realized
Losses with respect to principal shall be allocated among 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
aggregate Stated Principal Balance of the Mortgage Loans in the related Loan
Group over (y) the


                                       -2-

<PAGE>

aggregate class principal amounts of the Certificates in the Certificate Group
related to such Loan Group (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 losses shall be 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 aggregate Principal Balance of the Mortgage Loans in the related Loan
Group and finally, all remaining Realized Losses with respect to principal shall
be distributed in respect of the Class LT1Z Interest.

     If on any Distribution Date the Class Certificate Balance of any Class of
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 aggregate
Stated Principal Balance of the Mortgage Loans in the related Loan Group, (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 aggregate Stated Principal Balance of the Mortgage
Loans in related Loan Group over (y) the aggregate class principal balance of
the Certificates in the Certificate Group related to such Loan Group; 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 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 CERTIFICATES

     The following table sets forth (or describes) the Class designation,
Pass-Through 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>
               Related Class
                 or Classes
                of interests                      Initial           Minimum
                   in the                          Class         Denominations
    Class         Upper Tier     Pass-Through     Certificate      or Percentage
  Designation         REMIC            Rate           Balance           Interest
------------    -------------    ------------    ------------      -------------
<S>             <C>              <C>             <C>               <C>
Class I-A-1      Class I-A-1          (1)        $325,701,900       $25,000.00
Class I-A-2      Class I-A-2          (1)        $ 14,457,000       $25,000.00
Class II-A-1     Class II-A-1         (2)        $ 90,234,000       $25,000.00
Class II-A-2     Class II-A-2         (2)        $   4,005,000       $25,000.00
Class A-R        Class A-R            (3)        $         100              100%
</TABLE>


                                       -3-

<PAGE>

<TABLE>
<CAPTION>
               Related Class
                 or Classes
                of interests                      Initial           Minimum
                   in the                          Class         Denominations
    Class         Upper Tier     Pass-Through     Certificate      or Percentage
  Designation        REMIC            Rate           Balance           Interest
------------    -------------    ------------    ------------      -------------
<S>             <C>              <C>             <C>               <C>
  Class M-1       Class M-1           (4)        $   9,074,000       $25,000.00
  Class M-2       Class M-2           (4)         $   3,402,000       $25,000.00
  Class M-3       Class M-3           (4)        $   2,495,000       $25,000.00
  Class B-1       Class B-1           (4)        $   1,814,000       $25,000.00
  Class B-2       Class B-2           (4)        $   1,134,000       $25,000.00
  Class B-3       Class B-3           (4)        $   1,363,469       $25,000.00
  Class P         Class P            N/A(5)               N/A(5)           100%
</TABLE>

(1)   The Pass-Through Rate with respect to any Distribution Date (and the
     related Interest Accrual Period) for the Class I-A-1 and Class I-A-2
     Certificates will be the Loan Group I Net WAC.

(2)   The Pass-Through Rate with respect to any Distribution Date (and the
     related Interest Accrual Period) for the Class II-A-1 and Class II-A-2
     Certificates will be the Loan Group II Net WAC.

(3)   The Pass-Through Rate with respect to any Distribution Date (and the
     related Interest Accrual Period) for the Class A-R Certificates will be the
     Loan Group I Net WAC.

(4)   The Pass-Through Rates with respect to any Distribution Date (and the
     related Interest Accrual Period) for the Class M-1, Class M-2, Class M-3,
     Class B-1, Class B-2 and Class B-3 Certificates will be equal to the
     Subordinate Net WAC.

(5)   The Class P Certificates shall not have minimum dollar denominations or
     Class Certificate Balance and shall be issued in a minimum percentage
     interest of 10% and an aggregate percentage interest of 100%. The Class P
     Certificates will be entitled to receive Prepayment Penalties on the
     Prepayment Penalty Mortgage Loans.

     As of the Cut-off Date, the Mortgage Loans had an aggregate Stated
Principal Balance of $453,680,469.66.

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


                                       -4-
<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.

     ABN AMRO: ABN AMRO Mortgage Group, Inc. or any successor thereto.

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

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

     ABN AMRO Servicing Agreement: The Master Mortgage Loan Sale and Servicing
Agreement, dated as of October 1, 2006, between ABN AMRO and the Seller.

     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.

     Accrued Certificate Interest: With respect to each Class of Certificates,
an amount equal to the interest accrued during the related Interest Accrual
Period on the Class Certificate Balance thereof at the then-applicable
Pass-Through 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 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).


                                       -5-

<PAGE>

     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).

     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.

     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 Fitch. For any short-term
deposit or security, a rating of A-l+ in the case of S&P or A-1+ in the case of
Fitch.

     Applicable Credit Support Percentage: With respect to any Class of
Subordinate Certificates, the sum of the related Class Subordination Percentages
of such Class and all Classes of Subordinate Certificates which have a lower
relative priority of payment than such Class.

     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.

     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 IndyMac Assignment Agreement, the PHH Assignment
Agreement, the Wells Fargo Assignment Agreement, the ABN AMRO Assignment
Agreement, the Washington Mutual Assignment Agreement, the Countrywide
Assignment Agreement and the National City Assignment Agreement, which are
attached hereto as Exhibits I-1, I-2, I-3, I-4, I-5, I-6 and I-7, respectively.

     Assumed Final Distribution Date: For all Classes of Certificates, April 25,
2037, or if such day is not a Business Day, the next succeeding Business Day.


                                       -6-

<PAGE>

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

     Auction date: The date on which the Auction occurs.

     Available Funds: For any Distribution Date, the sum of the Group I
Available Funds and the Group II Available Funds.

     Average Loss Severity: With respect to any period and each Loan Group, the
fraction obtained by dividing (x) the aggregate amount of Realized Losses for
the related Mortgage Loans for such period by (y) the number of related Mortgage
Loans which had Realized Losses for such period.

     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.

     Certificate: Any mortgage pass-through certificate evidencing a beneficial
ownership interest in the Trust Fund signed and countersigned by the Securities
Administrator.

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

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

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

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

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


                                       -7-

<PAGE>

     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 A Certificate: Any of the Class I-A-1, Class I-A-2, Class II-A-1,
Class II-A-2 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 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 A-R Certificate: The Class A-R Certificate executed, authenticated
and delivered by the Securities Administrator substantially in the form annexed
hereto as Exhibit A-3 and evidencing the ownership of the Class LT1-R Interest
and the residual interest in the Upper Tier REMIC.

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

     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: The Class B-1 Percentage, Class B-2 Percentage or Class
B-3 Percentage.

     Class B-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 B-1 Certificates immediately
prior to such Distribution 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 B-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 B-2 Certificates immediately
prior to such Distribution 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 B-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 B-3 Certificates immediately
prior to such Distribution 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 Certificate Balance: With respect to any Certificate 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


                                       -8-

<PAGE>

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 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 or Class
M-3 Percentage.

     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 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 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 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 form 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
Penalties received on the Prepayment Penalty Mortgage Loans as set forth herein.


                                       -9-

<PAGE>

     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 30, 2007.

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

     Commission: The Securities and Exchange Commission.

     Compensating Interest Payment: 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 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.,
MLMBS Series 2007-1, 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: Corporate Trust Services - MLMBS 2007-1, and
for all other purposes, 9062 Old Annapolis Road, Columbia, Maryland, 21045,
Attn: Corporate Trust Services - MLMBS 2007-1.

     Countrywide: Countrywide Home Loans Servicing LP or any successor thereto.

     Countrywide Assignment Agreement: The Assignment, Assumption and
Recognition Agreement, dated as of March 1, 2007, among the Seller, the
Depositor, Countrywide and


                                      -10-

<PAGE>

Countrywide Home Loans, Inc., pursuant to which the Countrywide Servicing
Agreement (other than the rights to enforce the representations and warranties
with respect to the Countrywide Loans) were assigned to the Depositor for the
benefit of the Certificateholders.

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

     Countrywide Servicing Agreement: The Master Mortgage Loan Purchase and
Servicing Agreement dated as of November 1, 2004, between Countrywide Home Loans
Inc. and MLBUSA.

     Credit Support Depletion Date: The first Distribution Date on which the
Class Certificate Balances of the Subordinate Certificates are 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.

     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.


                                       -11-

<PAGE>

     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.

     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 Backed
Securities Trust, Mortgage Pass-Through Certificates, MLMBS Series 2007-1 -
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 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 Fitch 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


                                      -12-

<PAGE>

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.

     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;


                                       -13-

<PAGE>

          (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.

     Fitch: Fitch Ratings 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).

     Gross Margin: As to each Mortgage Loan, the fixed percentage set forth in
the related Mortgage Note and indicated on the Mortgage Loan Schedule which
percentage is added to the related Index on each Interest Adjustment Date to
determine (subject to rounding, the minimum and maximum Mortgage Interest Rate
and the Periodic Rate Cap) the Mortgage Interest Rate until the next Interest
Adjustment Date.

     Group I Available Funds: With respect to any Distribution Date and the
Group I Mortgage Loans, an amount equal to the excess of (i) the sum of (a) the
aggregate of the related Monthly Payments received on or prior to the related
Determination Date, (b) Liquidation Proceeds, Insurance Proceeds, Principal
Prepayments, Subsequent Recoveries and other


                                      -14-

<PAGE>

unscheduled recoveries of principal and interest in respect of the Group I
Mortgage Loans during the related Prepayment Period, (c) the aggregate of any
amounts received in respect of a related REO Property withdrawn from any
Protected Account and deposited in the Master Servicer Collection Account for
such Distribution Date, (d) the aggregate of any amounts deposited in the Master
Servicer Collection Account by the related Servicer or the Master Servicer in
respect of related Prepayment Interest Shortfalls for such Distribution Date,
(e) the aggregate of any related Monthly Advances made by the related Servicer
or the Master Servicer for such Distribution Date and (f) Prepayment Penalties
received with respect to the related Mortgage Loans, over (ii) the sum of (a)
related amounts reimbursable or payable to the related Servicer or the Master
Servicer pursuant to Sections 4.03 and 4.05, (b) related amounts deposited in
the Master Servicer Collection Account or the Distribution Account, as the case
may be, in error and (c) any Extraordinary Trust Fund Expenses.

     Group I Certificates: The Class I-A-1, Class I-A-2 and Class A-R
Certificates.

     Group I Mortgage Loans: The Mortgage Loans identified as such on the
Mortgage Loan Schedule.

     Group I Senior Accelerated Distribution Percentage: With respect to any
Distribution Date, the percentage indicated below:

<TABLE>
<CAPTION>
                                         Group I Senior Accelerated
      Distribution Date                    Distribution Percentage
      -----------------          ------------------------------------------
<S>                              <C>
April 2007 through March 2014    100%

April 2014 through March 2015    Group I Senior Percentage, plus 70% of the
                                Group I Subordinate Percentage

April 2015 through March 2016    Group I Senior Percentage, plus 60% of the
                                Group I Subordinate Percentage

April 2016 through March 2017    Group I Senior Percentage, plus 40% of the
                                Group I Subordinate Percentage

April 2017 through March 2018    Group I Senior Percentage, plus 20% of the
                                Group I Subordinate Percentage

April 2018 and thereafter        Group I Senior Percentage
</TABLE>

provided, however, (i) that any scheduled reduction to the Group I Senior
Accelerated Distribution Percentage described above shall not occur as of any
Distribution Date unless either (a)(1)(x) the outstanding principal balance of
Mortgage Loans delinquent 60 days or more (including foreclosure and REO
Property) averaged over the last six months as a percentage of the aggregate
outstanding Class Certificate Balance of the Class M Certificates and the Class
B Certificates, is less than 50%, or (y) the outstanding principal balance of
Mortgage Loans delinquent 60 days or more (including foreclosure and REO
Property) averaged over the last six months, as a percentage of the aggregate
outstanding principal balance of all Mortgage Loans averaged over the last six
months, does not exceed 2% and (2) Realized Losses on the Mortgage Loans to date
for such Distribution Date if occurring during the eighth, ninth, tenth,
eleventh or


                                      -15-

<PAGE>

twelfth year (or any year thereafter) after the Closing Date are less than 30%,
35%, 40%, 45% or 50%, respectively, of the sum of the Initial Class Certificate
Balances of the Class M Certificates and Class B Certificates or (b) (1) the
aggregate outstanding principal balance of the Mortgage Loans delinquent 60 days
or more (including foreclosure and REO Property) averaged over the last six
months, as a percentage of the aggregate outstanding principal balance of all
Mortgage Loans averaged over the last six months, does not exceed 4% and (2)
Realized Losses on the Mortgage Loans on or prior to such Distribution Date if
occurring during the eighth, ninth, tenth, eleventh or twelfth year (or any year
thereafter) after the Closing Date are less than 10%, 15%, 20%, 25% or 30%,
respectively, of the sum of the Initial Class Certificate Balances of the Class
M Certificates and Class B Certificates and (ii) that for any Distribution Date
on which the Group I Senior Percentage is greater than the Original Group I
Senior Percentage, the Group I Senior Accelerated Distribution Percentage and
Group II Senior Accelerated Distribution Percentage for such Distribution Date
shall be 100%. Notwithstanding the foregoing, upon the reduction of the
aggregate Class Certificate Balance of the Class I-A-1 and Class I-A-2
Certificates to zero, the Group I Senior Accelerated Distribution Percentage
will equal 0%.

     In addition, on any Distribution Date on or after the Distribution Date
occurring in April 2010, if the current weighted average of the Subordinate
Percentages for the Certificates is equal to or greater than two times the
initial weighted average of the Subordinate Percentages for the Certificates,
and (a) the outstanding principal balance of the Mortgage Loans delinquent 60
days or more (including for this purpose any such Mortgage Loans in foreclosure
or bankruptcy and such Mortgage Loans with respect to which the related
Mortgaged Property has been acquired by the Issuing Entity), averaged over the
last six months, as a percentage of the Subordinate Percentage for that
Distribution Date times the aggregate Stated Principal Balance of the Mortgage
Loans, does not exceed 50% and (b) cumulative Realized Losses on the Mortgage
Loans do not exceed 20% of the initial Subordinate Percentage times the
aggregate Stated Principal Balance of the Mortgage Loans as of the Cut-off Date,
then, in each case, the Group I Senior Accelerated Distribution Percentage for
such Distribution Date will be equal to, prior to the Distribution Date
occurring in April 2010, the Group I Senior Percentage plus 50% of the
Subordinate Percentage and, on or after the Distribution Date occurring in April
2010, the Group I Senior Percentage.

     Group I Senior Percentage: As of 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 I-A Certificates immediately
prior to such Distribution Date and the denominator of which is the aggregate
Stated Principal Balance of all of the Group I Mortgage Loans or related REO
Properties immediately prior to such Distribution Date.

     Group I Senior Principal Distribution Amount: As to any Distribution Date,
the lesser of (a) the balance of the Group I Available Funds remaining after the
distribution of all amounts required to be distributed pursuant to subclauses
first, second and third of Section 6.01(A) and (b) the sum of the following:

               (A) the Group I Senior Percentage for such Distribution Date
     times the sum of the following:

                    (1) the principal portion of each Monthly Payment due during


                                      -16-

<PAGE>

          the related Due Period on each Outstanding Mortgage Loan in Loan Group
          I, whether or not received on or prior to the related Determination
           Date, minus the principal portion of any Debt Service Reduction;

                    (2) the Stated Principal Balance of any Group I Mortgage
          Loan repurchased during the related Prepayment Period pursuant to
          Section 2.02 or 2.03 hereof or pursuant to the related Servicing
          Agreement; and

                    (3) the principal portion of all other unscheduled
          collections, including Subsequent Recoveries (other than Principal
          Prepayments in Full and Curtailments and amounts received in
          connection with the liquidation or disposition of a Group I Mortgage
          Loan, including without limitation Insurance Proceeds, Liquidation
          Proceeds and REO Proceeds) received during the related Prepayment
          Period to the extent applied by the related Servicer as recoveries of
          principal of the related Mortgage Loan pursuant to related Servicing
          Agreement;

               (B) with respect to the liquidation or other disposition of a
     Group I Mortgage Loan which occurred during the related Prepayment Period
     and did not result in any Extraordinary Losses, an amount equal to the
     lesser of (a) the Group I Senior Percentage for such Distribution Date
     times the Stated Principal Balance of such Group I Mortgage Loan and (b)
     the Group I Senior Accelerated Distribution Percentage for such
     Distribution Date times the related unscheduled collections (including
     without limitation Insurance Proceeds, Liquidation Proceeds and REO
     Proceeds) to the extent applied by the related Servicer or the Master
     Servicer as recoveries of principal of the related Mortgage Loan pursuant
     to the related Servicing Agreement or this Agreement;

               (C) the Group I Senior Accelerated Distribution Percentage for
     such Distribution Date times the aggregate of all Principal Prepayments in
     Full and Curtailments received in the related Prepayment Period with
     respect to the Group I Mortgage Loans;

               (D) any amounts described in clauses (A), (B) or (C) of this
     definition, as determined for any previous Distribution Date, which remain
     unpaid after application of amounts previously distributed pursuant to this
     clause (D) to the extent that such amounts are not attributable to Realized
     Losses which have been allocated to the Class M Certificates or Class B
     Certificates;

     Group II Available Funds: With respect to any Distribution Date and the
Group II Mortgage Loans, an amount equal to the excess of (i) the sum of (a) the
aggregate of the related Monthly Payments received on or prior to the related
Determination Date, (b) Liquidation Proceeds, Insurance Proceeds, Principal
Prepayments, Subsequent Recoveries and other unscheduled recoveries of principal
and interest in respect of the Group II Mortgage Loans during the related
Prepayment Period, (c) the aggregate of any amounts received in respect of a
related REO Property withdrawn from any Protected Account and deposited in the
Master Servicer Collection Account for such Distribution Date, (d) the aggregate
of any amounts deposited in the Master Servicer Collection Account by the
related Servicer or the Master Servicer in respect of related Prepayment
Interest Shortfalls for such Distribution Date, (e) the


                                      -17-

<PAGE>

aggregate of any related Monthly Advances made by the related Servicer or the
Master Servicer for such Distribution Date and (f) Prepayment Penalties received
with respect to the related Mortgage Loans, over (ii) the sum of (a) related
amounts reimbursable or payable to the related Servicer or the Master Servicer
pursuant to Sections 4.03 and 4.05, (b) related amounts deposited in the Master
Servicer Collection Account or the Distribution Account, as the case may be, in
error and (c) any Extraordinary Trust Fund Expenses.

     Group II Certificates: The Class II-A-1 Certificates and Class II-A-2
Certificates.

     Group II Mortgage Loans: The Mortgage Loans identified as such on the
Mortgage Loan Schedule.

     Group II Senior Accelerated Distribution Percentage: With respect to any
Distribution Date, the percentage indicated below:

<TABLE>
<CAPTION>
                                        Group II Senior Accelerated
      Distribution Date                    Distribution Percentage
      -----------------          -------------------------------------------
<S>                              <C>
April 2007 through March 2014    100%

April 2014 through March 2015    Group II Senior Percentage, plus 70% of the
                                Group II Subordinate Percentage

April 2015 through March 2016    Group II Senior Percentage, plus 60% of the
                                Group II Subordinate Percentage

April 2016 through March 2017    Group II Senior Percentage, plus 40% of the
                                Group II Subordinate Percentage

April 2017 through March 2018    Group II Senior Percentage, plus 20% of the
                                Group II Subordinate Percentage

April 2018 and thereafter        Group II Senior Percentage
</TABLE>

provided, however, (i) that any scheduled reduction to the Group II Senior
Accelerated Distribution Percentage described above shall not occur as of any
Distribution Date unless either (a)(1)(x) the outstanding principal balance of
Mortgage Loans delinquent 60 days or more (including foreclosure and REO
Property) averaged over the last six months as a percentage of the aggregate
outstanding Class Certificate Balance of the Class M Certificates and the Class
B Certificates, is less than 50%, or (y) the outstanding principal balance of
Mortgage Loans delinquent 60 days or more (including foreclosure and REO
Property) averaged over the last six months, as a percentage of the aggregate
outstanding principal balance of all Mortgage Loans averaged over the last six
months, does not exceed 2% and (2) Realized Losses on the Mortgage Loans to date
for such Distribution Date if occurring during the eighth, ninth, tenth,
eleventh or twelfth year (or any year thereafter) after the Closing Date are
less than 30%, 35%, 40%, 45% or 50%, respectively, of the sum of the Initial
Class Certificate Balances of the Class M Certificates and Class B Certificates
or (b) (1) the aggregate outstanding principal balance of the Mortgage Loans
delinquent 60 days or more (including foreclosure and REO Property) averaged
over the last six months, as a percentage of the aggregate outstanding principal
balance of all Mortgage Loans averaged over the last six months, does not exceed
4% and (2) Realized Losses on the


                                      -18-

<PAGE>

Mortgage Loans on or prior to such Distribution Date if occurring during the
eighth, ninth, tenth, eleventh or twelfth year (or any year thereafter) after
the Closing Date are less than 10%, 15%, 20%, 25% or 30%, respectively, of the
sum of the Initial Class Certificate Balances of the Class M Certificates and
Class B Certificates and (ii) that for any Distribution Date on which the Group
II Senior Percentage is greater than the Original Group II Senior Percentage,
the Group I Senior Accelerated Distribution Percentage and Group II Senior
Accelerated Distribution Percentage for such Distribution Date shall be 100%.
Notwithstanding the foregoing, upon the reduction of the aggregate Class
Certificate Balance of the Class II-A-1 and Class II-A-2 Certificates to zero,
the Group II Senior Accelerated Distribution Percentage will equal 0%.

     In addition, on any Distribution Date on or after the Distribution Date
occurring in April 2010, if the current weighted average of the Subordinate
Percentages for the Certificates is equal to or greater than two times the
initial weighted average of the Subordinate Percentages for the Certificates,
and (a) the outstanding principal balance of the Mortgage Loans delinquent 60
days or more (including for this purpose any such Mortgage Loans in foreclosure
or bankruptcy and such Mortgage Loans with respect to which the related
Mortgaged Property has been acquired by the Trust), averaged over the last six
months, as a percentage of the Subordinate Percentage for that Distribution Date
times the aggregate Stated Principal Balance of the Mortgage Loans, does not
exceed 50% and (b) cumulative Realized Losses on the Mortgage Loans do not
exceed 20% of the initial Subordinate Percentage times the aggregate Stated
Principal Balance of the Mortgage Loans as of the Cut-off Date, then, in each
case, the Group II Senior Accelerated Distribution Percentage for such
Distribution Date will be equal to, prior to the Distribution Date occurring in
April 2010, the Group II Senior Percentage plus 50% of the Subordinate
Percentage and, on or after the Distribution Date occurring in April 2010, the
Group II Senior Percentage.

     Group II Senior Percentage: As of 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 II-A-1 and Class II-A-2
Certificates immediately prior to such Distribution Date and the denominator of
which is the aggregate Stated Principal Balance of all of the Group II Mortgage
Loans or related REO Properties immediately prior to such Distribution Date.

     Group II Senior Principal Distribution Amount: As to any Distribution Date,
the lesser of (a) the balance of the Group II Available Funds remaining after
the distribution of all amounts required to be distributed pursuant to
subclauses first, second and third of Section 6.01(B) and (b) the sum of the
following:

               (A) the Group II Senior Percentage for such Distribution Date
     times the sum of the following:

                    (1) the principal portion of each Monthly Payment due during
          the related Due Period on each Outstanding Mortgage Loan in Loan Group
          II, whether or not received on or prior to the related Determination
          Date, minus the principal portion of any Debt Service Reduction;

                    (2) the Stated Principal Balance of any Group II Mortgage
          Loan repurchased during the related Prepayment Period pursuant to
          Section 2.02 or 2.03 hereof or the related Servicing Agreement; and


                                      -19-

<PAGE>

                    (3) the principal portion of all other unscheduled
          collections, including Subsequent Recoveries (other than Principal
          Prepayments in Full and Curtailments and amounts received in
          connection with the liquidation or disposition of a Group II Mortgage
          Loan, including without limitation Insurance Proceeds, Liquidation
          Proceeds and REO Proceeds) received during the related Prepayment
          Period to the extent applied by the related Servicer as recoveries of
          principal of the related Mortgage Loan pursuant to related Servicing
          Agreement;

               (B) with respect to the liquidation or other disposition of a
     Group II Mortgage Loan which occurred during the related Prepayment Period
     and did not result in any Extraordinary Losses, an amount equal to the
     lesser of (a) the Group II Senior Percentage for such Distribution Date
     times the Stated Principal Balance of such Group II Mortgage Loan and (b)
     the Group II Senior Accelerated Distribution Percentage for such
     Distribution Date times the related unscheduled collections (including
     without limitation Insurance Proceeds, Liquidation Proceeds and REO
     Proceeds) to the extent applied by the related Servicer or the Master
     Servicer as recoveries of principal of the related Mortgage Loan pursuant
     to the related Servicing Agreement or this Agreement;

               (C) the Group II Senior Accelerated Distribution Percentage for
     such Distribution Date times the aggregate of all Principal Prepayments in
     Full and Curtailments received in the related Prepayment Period with
     respect to the Group II Mortgage Loans;

               (D) any amounts described in clauses (A), (B) or (C) of this
     definition, as determined for any previous Distribution Date, which remain
     unpaid after application of amounts previously distributed pursuant to this
     clause (D) to the extent that such amounts are not attributable to Realized
     Losses which have been allocated to the Class M Certificates or Class B
     Certificates;

     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.


                                      -20-

<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 the Seller, the Depositor and
IndyMac, pursuant to which the IndyMac Servicing Agreement (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 and the Seller.

     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 5% of the aggregate Stated Principal Balance of the Mortgage Loans
as of the Cut-off Date.

     Initial Subordinate Class Percentage: With respect to each Class of
Subordinate Certificates, an amount which is equal to the initial aggregate
Class Certificate Balance of such Class of Subordinate Certificates divided by
the aggregate Stated Principal Balance of all the Mortgage Loans as of the
Cut-off Date as follows:

<TABLE>
<S>                 <C>
Class M-1: 2.00%    Class B-1: 0.40%

Class M-2: 0.75%    Class B-2: 0.25%

Class M-3: 0.55%    Class B-3: 0.30%
</TABLE>

     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.


                                       -21-

<PAGE>

     Interest Accrual Period: With respect to each Distribution Date, for each
Class of Certificates, the calendar month preceding the month in which such
Distribution Date occurs.

     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.

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

     Issuing Entity: Merrill Lynch Mortgage Backed Securities Trust, Series
2007-1.

     Latest Possible Maturity Date: 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.

     Loan Group: Loan Group I or Loan Group II, as applicable.

     Loan Group I: The group of Mortgage Loans designated as belonging to Loan
Group I on the Mortgage Loan Schedule.

     Loan Group I Net WAC: The weighted average of the Net Mortgage Rates on the
Group I Mortgage Loans weighted on the basis of the respective Stated Principal
Balance of each such Mortgage Loan as of the beginning of the Due Period
immediately preceding such Distribution Date.

     Loan Group II: The group of Mortgage Loans designated as belonging to Loan
Group II on the Mortgage Loan Schedule.


                                      -22-

<PAGE>

     Loan Group II Net WAC: The weighted average of the Net Mortgage Rates on
the Group II Mortgage Loans weighted on the basis of the respective Stated
Principal Balance of each such Mortgage Loan as of the beginning of the Due
Period immediately preceding such Distribution Date.

     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.

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

     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 Backed
Securities Trust, Mortgage Pass-Through Certificates, MLMBS Series 2007-1 -
Master Servicer Collection Account." The Master Servicer Collection Account
shall be an Eligible Account.

     Master Servicing Compensation: The meaning specified in 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.

     MLBUSA: Merrill Lynch Bank, USA.

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


                                      -23-

<PAGE>

     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.

     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 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 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 30, 2007, between the Seller and the Depositor, as purchaser,
and all amendments thereof and supplements thereto, attached hereto as Exhibit
J.

     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.


                                      -24-

<PAGE>

     Mortgage Pool: The pool of Mortgage Loans, identified on Exhibit B 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.

     National City: National City Mortgage Co., or any successor thereto.

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

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

     National City Servicing Agreement: The Master Seller's Warranties and
Servicing Agreement, dated as of May 1, 2004, between Merrill Lynch Bank, USA
and National City, as amended.

     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).

     Net WAC: The weighted average of the Net Mortgage Rates on the Mortgage
Loans weighted on the basis of the respective Stated Principal Balance of each
such Mortgage Loan as of the beginning of the Due Period immediately preceding
such Distribution Date.

     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 Master Servicer, the Trustee or applicable Servicer, will not or, in the
case of a proposed advance or Monthly Advance, would not, be ultimately
recoverable by the Master Servicer, the Trustee (as successor Master Servicer)
or applicable Servicer from Liquidation Proceeds, Insurance Proceeds or future
payments on the Mortgage Loan for which such advance or Monthly Advance was
made.

     Offered Certificate: Any Senior Certificate or Offered Subordinate
Certificate.

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


                                      -25-

<PAGE>

     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 of the Trust Fund hereunder 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 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 and expenses 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 Subordinate Principal Balance: The sum of the aggregate Class
Certificate Balances of each Class of Subordinate Certificates 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


                                      -26-

<PAGE>

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.

     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.

     Pass-Through Rate: With respect to the Certificates and any Distribution
Date, the following:

               (i) For the Class I-A-1 Certificates, the Class I-A-2
          Certificates and the Class A-R Certificate on each Distribution Date,
          a per annum rate equal to the Loan Group I Net WAC for such
          Distribution Date.

               (ii) For the Class II-A-1 Certificates and the Class II-A-2
          Certificates on each Distribution Date, a per annum rate equal to the
          Loan Group II Net WAC for such Distribution Date.

               (iii) For each class of Class M Certificates and Class B
          Certificates on each Distribution Date a per annum rate equal to the
          Subordinate Net WAC.

     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
A-R and Class P Certificates), a fraction, expressed as a percentage, the
numerator of which is the Initial Class Certificate Balance represented by such
Certificate and the denominator of which is the Initial Class Certificate
Balance of the related Class. With respect to the Class A-R and Class P
Certificates, the Percentage Interest evidenced thereby shall be as specified on
the face thereof, or otherwise, be equal to 100%.

     Periodic Rate Cap: With respect to each Mortgage Loan, the maximum
adjustment that can be made to the Mortgage Interest Rate on each Interest
Adjustment Date in accordance with its terms, regardless of changes in the
applicable Index.

     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):

          (v) 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;

          (vi) (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


                                      -27-

<PAGE>

     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;

          (vii) 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;

          (viii) 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;

          (ix) 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;

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

           (xi) 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;

          (xii) 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


                                      -28-

<PAGE>

     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

          (xiii) 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, formerly known as Cendant Mortgage
Corporation, or any successor thereto.

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

     PHH 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, among Merrill Lynch Mortgage
Capital, Inc., PHH and Bishop's Gate Residential Mortgage Trust.

     Physical Certificate: The Residual Certificate.

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

     Prepayment Distribution Trigger: With respect to any Distribution Date and
any Class of Subordinate Certificates (other than the Class M-1 Certificates), a
test that shall be satisfied if the fraction (expressed as a percentage) equal
to the sum of the Class Certificate Balances of such Class and each Class of
Subordinate Certificates with a Lower Priority than such Class immediately prior
to such Distribution Date divided by the aggregate Stated Principal Balance of
all of the Mortgage Loans (or related REO Properties) immediately prior to such
Distribution Date is greater than or equal to the sum of the related Initial
Subordinate Class Percentages of such Classes of Subordinate Certificates.


                                      -29-

<PAGE>

     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 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 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.

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

     Prepayment Penalty Mortgage Loans: Any of the Mortgage Loans set forth on
Schedule I hereto that are subject to existing prepayment premiums.

     Prepayment Period: With respect to any Mortgage Loan and any Distribution
Date, the calendar month preceding the month in which such Distribution Date
occurs.

     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 Interest Accrual Period for such Class
relating to a Distribution Date.

     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.

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

     Prospectus Supplement: The Prospectus Supplement dated March 28, 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'


                                      -30-

<PAGE>

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 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: Fitch and S&P.

     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.

     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 I-A-1, Class I-A-2, Class II-A-1,
Class II-A-2, 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. 1,506-1,631 (Jan. 7,


                                       -31-

<PAGE>

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).

     Related Class of Upper Tier REMIC Interest: With respect to any Class of
Certificates, the interest in the Upper Tier REMIC appearing opposite such Class
in the Preliminary Statement hereto.

     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
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 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.


                                      -32-

<PAGE>

     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 Stated Principal Balance of the
Mortgage Loans in the related Loan Group over (y) the aggregate Class
Certificate Balance of the Certificates in the Certificate Group related to such
Loan Group.

     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.

     Reserve Account: The separate Eligible Account created and maintained by
the Securities Administrator pursuant to Section 4.06 in the name of the Trustee
for the benefit of the Trust Fund and designated "Wells Fargo Bank, N.A., as
securities administrator, in trust for registered holders of the Merrill Lynch
Mortgage Backed Securities Trust, Mortgage Pass-Through Certificates, Series
2007-1." Funds in the Reserve Account shall be held in trust for the Trust Fund
for the uses and purposes set forth in this Agreement.

     Residual Certificate: The Class A-R Certificate.

     Residual Interest: The Residual Certificate, other than the portion thereof
representing the right to payments in respect of the Class LT1-R Interest.

     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.


                                      -33-

<PAGE>

     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).

     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.

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

     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 Accelerated Distribution Percentage: The Group I or Group II Senior
Accelerated Distribution Percentage, as applicable.

     Senior Certificates: The Class I-A-1 Certificates, Class I-A-2
Certificates, Class II-A-1 Certificates, Class II-A-2 Certificates and Class A-R
Certificates.


                                      -34-
<PAGE>

     Senior Percentage: The Group I Senior Percentage or Group II Senior
Percentage, as applicable.

     Senior Principal Distribution Amount: The Group I Senior Principal
Distribution Amount or Group II Senior Principal Distribution Amount, as
applicable.

     Servicer: With respect to each Mortgage Loan, IndyMac, PHH, Wells Fargo,
ABN AMRO, Washington Mutual, Countrywide or National City, 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.

     Servicing Advances: With respect to any Mortgage Loan, all customary,
reasonable and necessary "out-of-pocket" costs and expenses incurred by the
Servicer in the performance of its servicing obligations, including, but not
limited to, the cost of (i) preservation, restoration, protection and repair of
a Mortgaged Property or Cooperative Unit, as applicable, (ii) any enforcement or
judicial proceedings with respect to a Mortgage Loan, including foreclosure
actions and (iii) the management and liquidation of REO Property.

     Servicing Agreements: The IndyMac Servicing Agreement, the PHH Servicing
Agreement, the Wells Fargo Servicing Agreement, the ABN AMRO Servicing
Agreement, the Washington Mutual Servicing Agreement, the Countrywide Servicing
Agreement and the National City 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. If the Index and/or Gross Margin are
adjusted as provided in the related Mortgage Note, the Servicing Fee shall be
the rate per annum in effect immediately prior to such adjustment.

     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, other than a Servicer, the Custodian, the Master Servicer, the
Paying Agent, the Securities Administrator and the Trustee, that is
participating in the servicing function within the meaning of Regulation AB.

     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.


                                      -35-

<PAGE>

     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 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 irrespective of any delinquency in payment by the related
Mortgagor.

      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 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.

     Subordinate Net WAC: For any Distribution Date, a per annum rate equal to
the weighted average of the Loan Group I Net WAC and the Loan Group II Net WAC,
weighted in proportion to the results of subtracting from the aggregate Stated
Principal Balance of the Mortgage Loans of each Loan Group as of the beginning
of the Due Period immediately preceding such Distribution Date, the aggregate
Class Certificate Balance of the Senior Certificates related to each such Loan
Group.

     Subordinate Percentage: For any Distribution Date, the difference between
100% and the Senior Percentage for such date.

     Subordinate Prepayment Percentage: With respect to any Distribution Date
and each Class of Subordinate Certificates, under the applicable circumstances
set forth below, the respective percentages set forth below:

          (i) For any Distribution Date prior to the Distribution Date in April
     2014 (unless the Class Certificate Balances of the Senior Certificates have
     been reduced to zero), 0%.

          (ii) For any Distribution Date for which clause (i) does not apply,
     and on which any Class of Subordinate Certificates are outstanding:

               (a) in the case of the Class of Subordinate Certificates then
          outstanding with the Highest Priority and each other Class of
          Subordinate Certificates for which the related Prepayment Distribution
          Trigger has been satisfied, a fraction, expressed as a percentage, the
          numerator of which is the Class Certificate Balance of such Class
          immediately prior to such date and the denominator of which is the sum
          of the Class Certificate Balances immediately prior to such date of
          (1) the Class of Subordinate Certificates then outstanding with the
          Highest Priority and (2) all other Classes of Subordinate Certificates
          for which the respective Prepayment Distribution Triggers have been
          satisfied; and


                                      -36-

<PAGE>

                (b) in the case of each other Class of Subordinate Certificates
          for which the Prepayment Distribution Triggers have not been
          satisfied, 0%; and

          (iii) Notwithstanding the foregoing, if the application of the
     foregoing percentages on any Distribution Date as provided in Section 6.01
     of this Agreement (determined without regard to the proviso in the
     definition of "Subordinate Principal Distribution Amount") would result in
     a distribution in respect of principal of any Class or Classes of
     Subordinate Certificates in an amount greater than the remaining Class
     Certificate Balance thereof (any such class, a "Maturing Class"), then: (a)
     the Subordinate Prepayment Percentage of each Maturing Class shall be
     reduced to a level that, when applied as described above, would exactly
     reduce the Class Certificate Balance of such Class to zero; (b) the
     Subordinate Prepayment Percentage of each other Class of Subordinate
     Certificates (any such Class, a "Non-Maturing Class") shall be recalculated
     in accordance with the provisions in paragraph (ii) above, as if the Class
     Certificate Balance of each Maturing Class had been reduced to zero (such
     percentage as recalculated, the "Recalculated Percentage"); (c) the total
     amount of the reductions in the Subordinate Prepayment Percentages of the
     Maturing Class or Classes pursuant to clause (a) of this sentence,
     expressed as an aggregate percentage, shall be allocated among the
     Non-Maturing Classes in proportion to their respective Recalculated
     Percentages (the portion of such aggregate reduction so allocated to any
     Non-Maturing Class, the "Adjustment Percentage"); and (d) for purposes of
     such Distribution Date, the Subordinate Prepayment Percentage of each
     Non-Maturing Class shall be equal to the sum of (1) the Subordinate
     Prepayment Percentage thereof, calculated in accordance with the provisions
     in paragraph (ii) above as if the Class Certificate Balance of each
     Maturing Class had not been reduced to zero, plus (2) the related
     Adjustment Percentage.

     Subordinate Principal Distribution Amount: With respect to any Distribution
Date and each Class of Class M Certificates and Class B Certificates, the sum of
the following:

               (i) the product of (x) the related Class M Percentage or Class B
     Percentage for such Class and (y) the aggregate of the following amounts:

                    (1) the principal portion of each Monthly Payment due during
          the related Due Period on each Outstanding Mortgage Loan, whether or
          not received on or prior to the related Determination Date, minus the
          principal portion of any Debt Service Reduction;

                    (2) the Stated Principal Balance of any Mortgage Loan
          repurchased during the related Prepayment Period pursuant to Section
          2.02 or 2.03; and

                    (3) the principal portion of all other unscheduled
          collections (other than Principal Prepayments in Full and Curtailments
          and amounts received in connection with the liquidation or other
          disposition of a Mortgage Loan, including without limitation Insurance
          Proceeds, Liquidation Proceeds and REO Proceeds) received during the
          related Prepayment Period to the extent applied by the related
          Servicer as recoveries of principal of the related Mortgage Loan


                                      -37-

<PAGE>

          pursuant to the related Servicing Agreement;

               (ii) such Class's pro rata share, based on the Class Certificate
     Balance of each Class of Class M Certificates and Class B Certificates then
     outstanding, of, with respect to each Mortgage Loan for which a liquidation
     or other disposition occurred during the related Prepayment Period and did
     not result in any Extraordinary Losses, an amount equal to the related
     unscheduled collections (including without limitation Insurance Proceeds,
     Liquidation Proceeds and REO Proceeds) to the extent applied by the related
     Servicer as recoveries of principal of the related Mortgage Loan pursuant
     to the related Servicing Agreement, to the extent such collections are not
     otherwise distributed to the Senior Certificates;

               (iii) the product of (x) the related Subordinate Prepayment
     Percentage for such Distribution Date and (y) the aggregate of all
     Principal Prepayments in Full and Curtailments of the Mortgage Loans
     received in the related Prepayment Period, to the extent not payable to the
     Senior Certificates; and

               (iv) any amounts described in clauses (i), (ii) and (iii) as
     determined for any previous Distribution Date, that remain undistributed to
     the extent that such amounts are not attributable to Realized Losses which
     have been allocated to a Class of Subordinate Certificates;

provided, however, that such amount shall in no event exceed the outstanding
Class Certificate Balance of such Class of Certificates immediately prior to
such date.

     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 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; (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 and (viii) which has a Gross Margin, Periodic Rate Cap and Maximum
Lifetime Mortgage Rate no less than those of


                                      -38-

<PAGE>

such Mortgage Loan, has the same Index and interval between Interest Adjustment
Dates as such Mortgage Loan, and a Minimum Lifetime Mortgage Rate no lower than
that of such Mortgage Loan.

     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 this
Agreement, consisting of (i) the Mortgage Loans, including the right to all
payments of principal and interest received on or with respect to the Mortgage
Loans on and after the Cut-off Date (other than Scheduled Payments due on or
before such date), and all such payments due after such date but received prior
to such date and intended by the related Mortgagors to be applied after such
date; (ii) all of the Depositor's right, title and interest in and to all
amounts from time to time credited to and the proceeds of the Protected
Accounts, the Master Servicer Collection Account and the Distribution Account
established with respect to the Mortgage Loans; (iii) all of the Depositor's
rights under the Mortgage Loan Purchase Agreement, the Assignment Agreements and
the Servicing Agreements; (iv) all of the Depositor's right, title or interest
in REO Property and the proceeds thereof; (v) all of the Depositor's rights
under any Insurance Policies relating to the Mortgage Loans; and (vi) all
proceeds of the conversion, voluntary or involuntary, of any of the foregoing
into cash or other liquid assets, including without limitation, all Insurance
Proceeds, Liquidation Proceeds and condemnation awards and any proceeds of the
foregoing.

     Undercollateralized Amount: On any Distribution Date, the excess of (x) the
aggregate Class Certificate Balance of any Class or Classes of Senior
Certificates related to a Loan Group immediately prior to such Distribution Date
over (y) the aggregate Stated Principal Balance of the Mortgage Loans in its
related Loan Group as of the beginning of the related Due Period.

     Undercollateralized Senior Certificates: As defined in Section 6.01(E).

     Underlying Seller: With respect to each Mortgage Loan, ABN AMRO,
Countrywide Home Loans Inc., E-Loan, Inc., IndyMac, Market Street Mortgage
Corporation, National City, Quicken Loans Inc., Silver State Financial Services,
Inc., Wachovia Mortgage Corporation, Washington Mutual, Mortgage Access Corp.
d/b/a Weichert Financial Services and ComUnity Lending, Incorporated, as
indicated on the Mortgage Loan Schedule.

     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.


                                      -39-

<PAGE>

     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 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 of the Class I-A-1 Certificates,
Class I-A-2 Certificates, Class II-A-1 Certificates, Class II-A-2 Certificates,
Class M-1 Certificates, Class M-2 Certificates, Class M-3 Certificates, Class
B-1 Certificates, Class B-2 Certificates and Class B-3 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 (other than the Class A-R Certificate). 99.00% of all Voting Rights
will be allocated among all holders of the Certificates (other than the Class
A-R Certificate) in proportion to their then outstanding Class Certificate
Balances, and 1.00% of the Voting Rights shall be allocated to the Class A-R
Certificate; 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.

     Washington Mutual: Washington Mutual Bank, or any successor thereto.

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


                                      -40-

<PAGE>

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

     Washington Mutual Servicing Agreement: The Servicing Agreement, dated as of
November 1, 2005, between Washington Mutual and the Seller, as amended.

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

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

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

     Wells Fargo Servicing Agreement: The Seller's Warranties and Servicing
Agreement (WFHM Mortgage Loans Series 2006-W90), dated as of November 1, 2006,
between Merrill Lynch Bank, USA and Wells Fargo.

     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


                                      -41-

<PAGE>

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:

          (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 Backed Securities Trust,
     Series 2007-1 Mortgage Pass-Through Certificates, 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 Backed Securities Trust, Series
     2007-1, Mortgage Pass-Through Certificates.

          (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.


                                      -42-

<PAGE>

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

          (x) 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 Backed Securities Trust,
     Series 2007-1 Mortgage Pass-Through Certificates, 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;

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

          (xii) 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;

          (xiii) 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;

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

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

          (xvi) a copy of the recognition agreement;

          (xvii) 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

          (xviii) 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


                                      -43-

<PAGE>

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 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)(i) 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,


                                      -44-

<PAGE>

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 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


                                      -45-

<PAGE>

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 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


                                      -46-

<PAGE>

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.

     (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.


                                       -47-

<PAGE>

     (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
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 Section 2.04 of this Agreement, 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


                                      -48-

<PAGE>

writing, within five Business Days after receipt, whether or not the documents
relating to the Substitute Mortgage Loan satisfy the requirements of the fourth
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
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 Section 2.04 of this Agreement, 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.


                                      -49-

<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


                                      -50-

<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


                                      -51-

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


                                      -52-

<PAGE>

     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.

     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 Trustee has received a REMIC Opinion prepared
at the expense of the Issuing Entity; and (b) other than with respect to a
substitution pursuant to the Mortgage Loan Purchase Agreement or Section 2.04 of
this Agreement, as applicable, accept any contribution to any REMIC after the
Startup Day without receipt of a REMIC Opinion.

     Section 3.03 Monitoring of Servicers.

     (a) The Master Servicer shall be responsible for reporting to the Trustee
and the Depositor the compliance by each Servicer with its duties under the
related Servicing Agreement. In the review of each Servicer's activities, the
Master Servicer may rely upon an


                                      -53-

<PAGE>

officer's certificate of the Servicer with regard to such Servicer's compliance
with the terms of its Servicing Agreement. In the event that the Master
Servicer, in its judgment, determines that a Servicer should be terminated in
accordance with its Servicing Agreement, or that a notice should be sent
pursuant to such Servicing Agreement with respect to the occurrence of an event
that, unless cured, would constitute grounds for such termination, the Master
Servicer shall notify the Depositor and the Trustee thereof and the Master
Servicer shall issue such notice or take such other action as it deems
appropriate.

     (b) The Master Servicer, for the benefit of the Trustee and the
Certificateholders, shall enforce the obligations of each Servicer under the
related Servicing Agreement, and shall, in the event that a Servicer fails to
perform its obligations in accordance with the related Servicing Agreement,
subject to the preceding paragraph, terminate the rights and obligations of such
Servicer thereunder and act as servicer of the related Mortgage Loans or, if the
Master Servicer is unwilling or unable to act as a Servicer, the Master Servicer
shall cause the Trustee to enter in to a new Servicing Agreement with a
successor Servicer selected by the Master Servicer that is eligible in
accordance with the criteria specified in this Agreement; provided, however, it
is understood and acknowledged by the parties hereto that there will be a period
of transition (not to exceed 90 days) before the actual servicing functions can
be fully transferred to such successor servicer. In either event, such
enforcement, including, without limitation, the legal prosecution of claims,
termination of the Servicing Agreements and the pursuit of other appropriate
remedies, shall be in such form and carried out to such an extent and at such
time as the Master Servicer, in its good faith business judgment, would require
were it the owner of the related Mortgage Loans. The Master Servicer shall pay
the costs of such enforcement at its own expense subject to Section 3.03(c),
provided that the Master Servicer shall not be required to prosecute or defend
any legal action except to the extent that the Master Servicer shall have
received reasonable indemnity for its costs and expenses in pursuing such
action.

     (c) To the extent that the costs and expenses of the Master Servicer
related to any termination of a Servicer, appointment of a successor Servicer or
the transfer and assumption of servicing by the Master Servicer with respect to
any Servicing Agreement (including, without limitation, (i) all legal costs and
expenses and all due diligence costs and expenses associated with an evaluation
of the potential termination of a Servicer as a result of an event of default by
such Servicer and (ii) all costs and expenses associated with the complete
transfer of servicing, including all servicing files and all servicing data and
the completion, correction or manipulation of such servicing data as may be
required by the successor servicer to correct any errors or insufficiencies in
the servicing data or otherwise to enable the successor service to service the
Mortgage Loans in accordance with the related Servicing Agreement) are not fully
and timely reimbursed by the terminated Servicer, the Master Servicer shall be
entitled to reimbursement of such costs and expenses from the Master Servicer
Collection Account pursuant to Section 4.03(b).

     (d) The Master Servicer shall require each Servicer to comply with the
remittance requirements and other obligations set forth in the related Servicing
Agreement.

     (e) If the Master Servicer acts as Servicer, it will not assume liability
for the representations and warranties of such Servicer, if any, that it
replaces.


                                      -54-

<PAGE>

     Section 3.04 Fidelity Bond. The Master Servicer, at its expense, shall
maintain in effect a blanket fidelity bond and an errors and omissions insurance
policy, affording coverage with respect to all directors, officers, employees
and other Persons acting on such Master Servicer's behalf, and covering errors
and omissions in the performance of the Master Servicer's obligations hereunder.
The errors and omissions insurance policy and the fidelity bond shall be in such
form and amount generally acceptable for entities serving as master servicers or
trustees.

     Section 3.05 Power to Act; Procedures. The Master Servicer shall master
service the Mortgage Loans and shall have full power and authority, subject to
the REMIC Provisions and the provisions of Article X hereof, to do any and all
things that it may deem necessary or desirable in connection with the master
servicing and administration of the Mortgage Loans, including but not limited to
the power and authority (i) to execute and deliver, on behalf of the
Certificateholders and the Trustee, customary consents or waivers and other
instruments and documents, (ii) to consent to transfers of any Mortgaged
Property and assumptions of the Mortgage Notes and related Mortgages, (iii) to
collect any Insurance Proceeds and Liquidation Proceeds, and (iv) to effectuate
foreclosure or other conversion of the ownership of the Mortgaged Property
securing any Mortgage Loan, in each case, in accordance with the provisions of
this Agreement and the related Servicing Agreement, as applicable; provided,
however, that the Master Servicer shall not (and, consistent with its
responsibilities under Section 3.03, shall not permit any Servicer to) knowingly
or intentionally take any action, or fail to take (or fail to cause to be taken)
any action reasonably within its control and the scope of duties more
specifically set forth herein, that, under the REMIC Provisions, if taken or not
taken, as the case may be, would cause any REMIC created hereunder to fail to
qualify as a REMIC or result in the imposition of a tax upon the Issuing Entity
(including but not limited to the tax on prohibited transactions as defined in
Section 860F(a)(2) of the Code and the tax on contributions to a REMIC set forth
in Section 860G(d) of the Code) unless the Master Servicer has received an
Opinion of Counsel (but not at the expense of the Master Servicer) to the effect
that the contemplated action will not would cause any REMIC created hereunder to
fail to qualify as a REMIC or result in the imposition of a tax upon any REMIC
created hereunder. The Trustee shall furnish the Master Servicer, upon written
request from a Servicing Officer, with any limited powers of attorney (in form
acceptable to the Trustee) empowering the Master Servicer or any Servicer to
execute and deliver instruments of satisfaction or cancellation, or of partial
or full release or discharge, and to foreclose upon or otherwise liquidate
Mortgaged Property, and to appeal, prosecute or defend in any court action
relating to the Mortgage Loans or the Mortgaged Property, in accordance with the
applicable Servicing Agreement and this Agreement, and the Trustee shall execute
and deliver such other documents, as the Master Servicer may request, to enable
the Master Servicer to master service and administer the Mortgage Loans and
carry out its duties hereunder, in each case in accordance with Accepted Master
Servicing Practices (and the Trustee shall have no liability for misuse of any
such powers of attorney by the Master Servicer or any Servicer). If the Master
Servicer or the Trustee has been advised that it is likely that the laws of the
state in which action is to be taken prohibit such action if taken in the name
of the Trustee or that the Trustee would be adversely affected under the "doing
business" or tax laws of such state if such action is taken in its name, the
Master Servicer shall join with the Trustee in the appointment of a co-trustee
pursuant to Section 9.11 hereof. In the performance of its duties hereunder, the
Master Servicer shall be an independent contractor and shall not, except in
those instances where it is taking action in the name of the Trustee, be deemed
to be the agent of the Trustee.


                                      -55-

<PAGE>

     Section 3.06 Due-on-Sale Clauses; Assumption Agreements. To the extent
provided in the applicable Servicing Agreement, to the extent Mortgage Loans
contain enforceable due-on-sale clauses, the Master Servicer shall cause the
Servicers to enforce such clauses in accordance with the applicable Servicing
Agreement. If applicable law prohibits the enforcement of a due-on-sale clause
or such clause is otherwise not enforced in accordance with the applicable
Servicing Agreement, and, as a consequence, a Mortgage Loan is assumed, the
original Mortgagor may be released from liability in accordance with the
applicable Servicing Agreement.

     Section 3.07 Release of Mortgage Files.

     (a) Upon becoming aware of the payment in full of any Mortgage Loan, or the
receipt by any Servicer of a notification that payment in full has been escrowed
in a manner customary for such purposes for payment to Certificateholders on the
next Distribution Date, the Servicers or the Master Servicer will, if required
under the applicable Servicing Agreement, promptly furnish to the Custodian, on
behalf of the Trustee, two copies of a certification substantially in the form
of Exhibit D hereto signed by a Servicing Officer or in a mutually agreeable
electronic format which will, in lieu of a signature on its face, originate from
a Servicing Officer (which certification shall include a statement to the effect
that all amounts received in connection with such payment that are required to
be deposited in the Protected Account maintained by the applicable Servicer
pursuant to its Servicing Agreement have been or will be so deposited) and shall
request that the Custodian, on behalf of the Trustee, deliver to the applicable
Servicer the related Mortgage File. Upon receipt of such certification and
request, the Custodian, on behalf of the Trustee, shall no later than five
Business Days (or, to the extent that the applicable Servicer notifies the
Seller that a document is not in the Servicer's possession as part of the
Servicing File which is needed for purposes of the Servicer complying with any
applicable law, within such shorter period as may be necessary to enable the
Servicer to comply with such law), release the related Mortgage File to the
applicable Servicer and the Trustee and Custodian shall have no further
responsibility with regard to such Mortgage File. Upon any such payment in full,
each Servicer is authorized, to give, as agent for the Trustee, as the mortgagee
under the Mortgage that secured the Mortgage Loan, an instrument of satisfaction
(or assignment of mortgage without recourse) regarding the Mortgaged Property
subject to the Mortgage, which instrument of satisfaction or assignment, as the
case may be, shall be delivered to the Person or Persons entitled thereto
against receipt therefor of such payment, it being understood and agreed that no
expenses incurred in connection with such instrument of satisfaction or
assignment, as the case may be, shall be chargeable to the Protected Account.

     (b) From time to time and as appropriate for the servicing or foreclosure
of any Mortgage Loan and in accordance with the applicable Servicing Agreement,
the Trustee shall execute such documents as requested and as shall be prepared
and furnished to the Trustee by a Servicer or the Master Servicer and as are
necessary to the prosecution of any such proceedings. In connection with the
foregoing, the Custodian, on behalf of the Trustee, shall, upon the request of a
Servicer or the Master Servicer, and delivery to the Custodian, on behalf of the
Trustee, of two copies of a Request for Release signed by a Servicing Officer
substantially in the form of Exhibit D (or in a mutually agreeable electronic
format which will, in lieu of a signature on its face, originate from a
Servicing Officer), release the related Mortgage File held in its possession or
control to the related Servicer or the Master Servicer, as applicable. Such
trust receipt shall


                                       -56-

<PAGE>

obligate the related Servicer or the Master Servicer to return the Mortgage File
to the Custodian on behalf of the Trustee, when the need therefor by the
Servicer or the Master Servicer no longer exists unless the Mortgage Loan shall
be liquidated, in which case, upon receipt of a certificate of a Servicing
Officer similar to that hereinabove specified, the Mortgage File shall be
released by the Custodian, on behalf of the Trustee, to the related Servicer or
the Master Servicer.

     Section 3.08 Documents, Records and Funds in Possession of Master Servicer
To Be Held for Trustee.

     (a) The Master Servicer shall transmit and each Servicer (to the extent
required by the related Servicing Agreement) shall transmit to the Trustee or
Custodian such documents and instruments coming into the possession of the
Master Servicer or such Servicer from time to time as are required by the terms
hereof, or in the case of the Servicers, the applicable Servicing Agreement, to
be delivered to the Trustee or Custodian. Any funds received by the Master
Servicer or by a Servicer in respect of any Mortgage Loan or which otherwise are
collected by the Master Servicer or by a Servicer as Liquidation Proceeds or
Insurance Proceeds in respect of any Mortgage Loan shall be held for the benefit
of the Trustee and the Certificateholders subject to the Master Servicer's right
to retain or withdraw from the Master Servicer Collection Account the Master
Servicing Compensation and other amounts provided in this Agreement, and to the
right of each Servicer to retain its Servicing Fee and other amounts as provided
in the applicable Servicing Agreement. The Master Servicer shall, and (to the
extent provided in the applicable Servicing Agreement) shall cause each Servicer
to, provide access to information and documentation regarding the Mortgage Loans
to the Trustee, its agents and accountants at any time upon reasonable request
and during normal business hours, and to Certificateholders that are savings and
loan associations, banks or insurance companies, the Office of Thrift
Supervision, the FDIC and the supervisory agents and examiners of such Office
and Corporation or examiners of any other federal or state banking or insurance
regulatory authority if so required by applicable regulations of the Office of
Thrift Supervision or other regulatory authority, such access to be afforded
without charge but only upon reasonable request in writing and during normal
business hours at the offices of the Master Servicer designated by it. In
fulfilling such a request, the Master Servicer shall not be responsible for
determining the sufficiency of such information.

     (b) All Mortgage Files and funds collected or held by, or under the control
of, the Master Servicer, in respect of any Mortgage Loans, whether from the
collection of principal and interest payments or from Liquidation Proceeds or
Insurance Proceeds, shall be held by the Master Servicer for and on behalf of
the Trustee and the Certificateholders and shall be and remain the sole and
exclusive property of the Trustee; provided, however, that the Master Servicer
and each Servicer shall be entitled to setoff against, and deduct from, any such
funds any amounts that are properly due and payable to the Master Servicer or
such Servicer under this Agreement or the applicable Servicing Agreement.

     Section 3.09 Standard Hazard Insurance and Flood Insurance Policies.

     (a) For each Mortgage Loan, the Master Servicer shall enforce any
obligation of the Servicers under the related Servicing Agreements to maintain
or cause to be maintained standard fire and casualty insurance and, where
applicable, flood insurance, all in accordance with the


                                      -57-

<PAGE>

provisions of the related Servicing Agreements. It is understood and agreed that
such insurance shall be with insurers meeting the eligibility requirements set
forth in the applicable Servicing Agreement and that no earthquake or other
additional insurance is to be required of any Mortgagor or to be maintained on
property acquired in respect of a defaulted loan, other than pursuant to such
applicable laws and regulations as shall at any time be in force and as shall
require such additional insurance.

     (b) Pursuant to Sections 4.01 and 4.02, any amounts collected by the
Servicers or the Master Servicer, under any insurance policies (other than
amounts to be applied to the restoration or repair of the property subject to
the related Mortgage or released to the Mortgagor in accordance with the
applicable Servicing Agreement) shall be deposited into the Master Servicer
Collection Account, subject to withdrawal pursuant to Sections 4.02 and 4.03 in
accordance with the terms and conditions of the related Servicing Agreement. Any
cost incurred by the Master Servicer or any Servicer in maintaining any such
insurance if the Mortgagor defaults in its obligation to do so shall be added to
the amount owing under the Mortgage Loan where the terms of the Mortgage Loan so
permit; provided, however, that the addition of any such cost shall not be taken
into account for purposes of calculating the distributions to be made to
Certificateholders and shall be recoverable by the Master Servicer or such
Servicer pursuant to Sections 4.02 and 4.03.

     Section 3.10 Presentment of Claims and Collection of Proceeds. The Master
Servicer shall (to the extent provided in the applicable Servicing Agreement)
cause the related Servicer to, prepare and present on behalf of the Trustee and
the Certificateholders all claims under the Insurance Policies and take such
actions (including the negotiation, settlement, compromise or enforcement of the
insured's claim) as shall be necessary to realize recovery under such policies.
Any proceeds disbursed to the Master Servicer (or disbursed to a Servicer and
remitted to the Master Servicer) in respect of such policies, bonds or contracts
shall be promptly deposited in the Master Servicer Collection Account upon
receipt, except that any amounts realized that are to be applied to the repair
or restoration of the related Mortgaged Property as a condition precedent to the
presentation of claims on the related Mortgage Loan to the insurer under any
applicable Insurance Policy need not be so deposited (or remitted).

     Section 3.11 Maintenance of the Primary Mortgage Insurance Policies.

     (a) The Master Servicer shall not take, or permit any Servicer (to the
extent such action is prohibited under the applicable Servicing Agreement) to
take, any action that would result in noncoverage under any applicable Primary
Mortgage Insurance Policy of any loss which, but for the actions of such Master
Servicer or Servicer, would have been covered thereunder. The Master Servicer
shall use its best reasonable efforts to cause each Servicer (to the extent
required under the related Servicing Agreement) to keep in force and effect (to
the extent that the Mortgage Loan requires the Mortgagor to maintain such
insurance), primary mortgage insurance applicable to each Mortgage Loan in
accordance with the provisions of this Agreement and the related Servicing
Agreement, as applicable. The Master Servicer shall not, and shall not permit
any Servicer (to the extent required under the related Servicing Agreement) to,
cancel or refuse to renew any such Primary Mortgage Insurance Policy that is in
effect at the date of the initial issuance of the Mortgage Note and is required
to be kept in force hereunder


                                      -58-

<PAGE>

except in accordance with the provisions of this Agreement and the related
Servicing Agreement, as applicable.

     (b) The Master Servicer agrees to present, or to cause each Servicer (to
the extent required under the related Servicing Agreement) to present, on behalf
of the Trustee and the Certificateholders, claims to the insurer under any
Primary Mortgage Insurance Policies and, in this regard, to take such reasonable
action as shall be necessary to permit recovery under any Primary Mortgage
Insurance Policies respecting defaulted Mortgage Loans. Pursuant to Section 4.01
and 4.02, any amounts collected by the Master Servicer or any Servicer under any
Primary Mortgage Insurance Policies shall be deposited in the Master Servicer
Collection Account, subject to withdrawal pursuant to Section 4.03.

     Section 3.12 Trustee to Retain Possession of Certain Insurance Policies and
Documents. The Trustee or the Custodian shall retain possession and custody of
the originals (to the extent available) of any Primary Mortgage Insurance
Policies, or certificate of insurance if applicable, and any certificates of
renewal as to the foregoing as may be issued from time to time as contemplated
by this Agreement. Until all amounts distributable in respect of the
Certificates have been distributed in full and the Master Servicer otherwise has
fulfilled its obligations under this Agreement, the Trustee or its Custodian
shall also retain possession and custody of each Mortgage File in accordance
with and subject to the terms and conditions of this Agreement. The Master
Servicer shall promptly deliver or cause to be delivered to the Trustee or the
Custodian upon the execution or receipt thereof the originals of any Primary
Mortgage Insurance Policies, any certificates of renewal, and such other
documents or instruments that constitute portions of the Mortgage File that come
into the possession of the Master Servicer from time to time.

     Section 3.13 Realization Upon Defaulted Mortgage Loans. The Master Servicer
shall cause each Servicer (to the extent required under the related Servicing
Agreement) to foreclose upon, repossess or otherwise comparably convert the
ownership of Mortgaged Properties securing such of the Mortgage Loans as come
into and continue in default and as to which no satisfactory arrangements can be
made for collection of delinquent payments, all in accordance with the terms and
conditions of the applicable Servicing Agreement.

     Section 3.14 Compensation for the Master Servicer. The Master Servicer will
be entitled to all income and gain realized from any investment of funds in the
Master Servicer Collection Account, pursuant to Article IV, for the performance
of its activities hereunder. Servicing compensation in the form of assumption
fees, if any, late payment charges, as collected, if any, or otherwise (but not
including any prepayment premium or penalty) shall be retained by the applicable
Servicer and shall not be deposited in the Protected Account. The Master
Servicer shall be required to pay all expenses incurred by it in connection with
its activities hereunder and shall not be entitled to reimbursement therefor
except as provided in this Agreement.

     Section 3.15 REO Property.

     (a) In the event the Issuing Entity acquires ownership of any REO Property
in respect of any related Mortgage Loan, the deed or certificate of sale shall
be issued to the Trustee, or to


                                      -59-

<PAGE>

its nominee, on behalf of the related Certificateholders. The Master Servicer
shall, to the extent provided in the applicable Servicing Agreement, cause the
applicable Servicer to sell, any REO Property as expeditiously as possible and
in accordance with the provisions of this Agreement and the related Servicing
Agreement, as applicable. Pursuant to its efforts to sell such REO Property, the
Master Servicer shall cause the applicable Servicer to protect and conserve,
such REO Property in the manner and to the extent required by the applicable
Servicing Agreement, in accordance with the REMIC Provisions and in a manner
that does not result in a tax on "net income from foreclosure property" or cause
such REO Property to fail to qualify as "foreclosure property" within the
meaning of Section 860G(a)(8) of the Code.

     (b) The Master Servicer shall, to the extent required by the related
Servicing Agreement, cause the applicable Servicer to deposit all funds
collected and received in connection with the operation of any REO Property in
the Protected Account.

     (c) The Master Servicer and the applicable Servicer, upon the final
disposition of any REO Property, shall be entitled to reimbursement for any
related unreimbursed Monthly Advances and other unreimbursed advances as well as
any unpaid Servicing Fees from Liquidation Proceeds received in connection with
the final disposition of such REO Property; provided, that any such unreimbursed
Monthly Advances as well as any unpaid Servicing Fees may be reimbursed or paid,
as the case may be, prior to final disposition, out of any net rental income or
other net amounts derived from such REO Property.

     (d) To the extent provided in the related Servicing Agreement, the
Liquidation Proceeds from the final disposition of the REO Property, net of any
payment to the Master Servicer and the applicable Servicer as provided above
shall be deposited in the Protected Account on or prior to the Determination
Date in the month following receipt thereof and be remitted by wire transfer in
immediately available funds to the Master Servicer for deposit into the related
Master Servicer Collection Account on the next succeeding Servicer Remittance
Date.

     Section 3.16 Annual Statement as to Compliance.

     Not later than March 1 of each calendar year (other than the calendar year
during which the Closing Date occurs), each Servicer shall deliver (or otherwise
make available) and each Servicer shall cause any Servicing Function Participant
engaged by it to deliver to the Master Servicer, the Securities Administrator
and the Depositor, an Officer's Certificate in the form attached hereto as
Exhibit P stating, as to each signatory thereof, that (i) a review of the
activities of such signatory during the preceding calendar year, or portion
thereof, and of the performance of such signatory under the related Servicing
Agreement or such other applicable agreement in the case of a Servicing Function
Participant has been made under such officer's supervision, and (ii) to the best
of such officer's knowledge, based on such review, such signatory has fulfilled
all its obligations under this Agreement, the related Servicing Agreement or
such other applicable agreement in all material respects throughout such year or
a portion thereof, or, if there has been a failure to fulfill any such
obligation in any material respect, specifying each such failure known to such
officer and the nature and status thereof.


                                      -60-

<PAGE>

     The Master Servicer and the Securities Administrator shall deliver (or
otherwise make available) (and the Master Servicer and Securities Administrator
shall cause any Servicing Function Participant engaged by it to deliver) to the
Depositor and the Securities Administrator on or before March 1 (with a
ten-calendar day cure period) of each year, commencing in March 2008, an
Officer's Certificate stating, as to the signer thereof, that (A) a review of
such party's activities during the preceding calendar year or portion thereof
and of such party's performance under this Agreement, or such other applicable
agreement in the case of a Servicing Function Participant, has been made under
such officer's supervision and (B) to the best of such officer's knowledge,
based on such review, such party has fulfilled all its obligations under this
Agreement, or such other applicable agreement in the case of a Servicing
Function Participant, in all material respects throughout such year or portion
thereof, or, if there has been a failure to fulfill any such obligation in any
material respect, specifying each such failure known to such officer and the
nature and status thereof.

     The Master Servicer shall include all annual statements of compliance
received by it from each Servicer with its own annual statement of compliance to
be submitted to the Securities Administrator pursuant to this Section.

      In the event the Master Servicer, the Securities Administrator or any
Servicing Function Participant engaged by any such party is terminated, assigns
its rights and obligations under or resigns pursuant to the terms of this
Agreement, or such other applicable agreement in the case of a Servicing
Function Participant, as the case may be, such party shall provide, an annual
statement of compliance pursuant to this Section 3.16 or to such applicable
agreement, as the case may be, notwithstanding any such termination, assignment
or resignation.

     Section 3.17 Reports on Assessment of Compliance and Attestation.

     (a) Not later than March 1 of each calendar year (other than the calendar
year during which the Closing Date occurs) each Servicer at its own expense,
shall furnish, and shall cause any Servicing Function Participant engaged by it
to furnish (unless in the case of a Subcontractor, such Servicer has notified
the Depositor and the Master Servicer in writing that such compliance statement
is not required for the Subcontractor) to the Master Servicer, the Securities
Administrator and the Depositor an officer's assessment of its compliance with
the Relevant Servicing Criteria during the preceding calendar year as required
by Rules 13a-18 and 15d-18 of the Exchange Act and Item 1122 of Regulation AB
(the "Assessment of Compliance"), which assessment shall contain (A) a statement
by such party of its responsibility for assessing compliance with the Relevant
Servicing Criteria, (B) a statement that such party used the Relevant Servicing
Criteria to assess compliance with the Relevant Servicing Criteria, (C) such
party's assessment of compliance with the Relevant Servicing Criteria as of and
for the fiscal year covered by the Form 10-K required to be filed pursuant to
Section 3.18, including, if there has been any material instance of
noncompliance with the Relevant Servicing Criteria, a discussion of each such
failure and the nature and status thereof, which assessment shall be based on
the activities it performs with respect to asset-backed securities transactions
taken as a whole involving such party that are backed by the same asset type as
the Mortgage Loans, and (D) a statement that a registered public accounting firm
has issued an attestation report on such party's assessment of compliance with
the Relevant Servicing Criteria as of and for such period.


                                      -61-

<PAGE>

     By March 1 (with a ten-calendar day cure period) of each year, commencing
in March 2008, the Master Servicer, the Securities Administrator and the
Custodian each at its own expense, shall furnish or otherwise make available,
and each such party shall cause any Servicing Function Participant engaged by it
to furnish, each at its own expense, to the Securities Administrator and the
Depositor, a report on an assessment of compliance with the Relevant Servicing
Criteria that contains (A) a statement by such party of its responsibility for
assessing compliance with the Relevant Servicing Criteria, (B) a statement that
such party used the Relevant Servicing Criteria to assess compliance with the
Relevant Servicing Criteria, (C) such party's assessment of compliance with the
Relevant Servicing Criteria as of and for the fiscal year covered by the Form
10-K required to be filed pursuant to Sections 3.18(h), (i), (j) and (k),
including, if there has been any material instance of noncompliance with the
Relevant Servicing Criteria, a discussion of each such failure and the nature
and status thereof, and (D) a statement that a registered public accounting firm
has issued an attestation report on such party's assessment of compliance with
the Relevant Servicing Criteria as of and for such period.

     No later than the end of each fiscal year for the Trust for which a 10-K is
required to be filed, the Master Servicer, the Custodian shall each forward to
the Securities Administrator and the Depositor the name of each Servicing
Function Participant engaged by it and what Relevant Servicing Criteria will be
addressed in the report on assessment of compliance prepared by such Servicing
Function Participant (provided, however, that the Master Servicer need not
provide such information to the Securities Administrator so long as the Master
Servicer and the Securities Administrator are the same Person). When the Master
Servicer, and the Securities Administrator (or any Servicing Function
Participant engaged by them) submit their assessments to the Securities
Administrator, such parties will also at such time include the assessment and
attestation pursuant to this Section 3.17 of each Servicing Function Participant
engaged by it.

     Promptly after receipt of each report on assessment of compliance, (i) the
Depositor shall review each such report and, if applicable, consult with such
Servicer, the Master Servicer, the Securities Administrator and any Servicing
Function Participant engaged by any such party as to the nature of any material
instance of noncompliance with the Relevant Servicing Criteria by such Servicer
by each such party, and (ii) the Securities Administrator shall confirm that the
assessments individually address the Relevant Servicing Criteria for each party
as set forth on Exhibit K or any similar exhibit set forth in each Servicing
Agreement in respect of each Servicer and notify the Depositor of any
exceptions.

     The Master Servicer shall include all annual reports on assessment of
compliance received by it from the Servicers with its own assessment of
compliance to be submitted to the Securities Administrator pursuant to this
Section.

     In the event the Master Servicer, the Securities Administrator or any
Servicing Function Participant engaged by any such party is terminated, assigns
its rights and obligations under or resigns pursuant to the terms of this
Agreement, or any other applicable agreement, as the case may be, such party
shall provide, an assessment of compliance pursuant to this Section 3.17,
coupled with an attestation as required in this Section 3.17, or such applicable
agreement notwithstanding any such termination, assignment or resignation.


                                      -62-

<PAGE>

     (b) Not later than March 1 of each calendar year (other than the calendar
year during which the Closing Date occurs) each Servicer at its own expense,
shall cause, and shall cause any Servicing Function Participant engaged by it to
cause (unless in the case of a Subcontractor, such Servicer has notified the
Depositor and the Master Servicer in writing that such report is not required
for the Subcontractor) a nationally or regionally recognized firm of independent
registered public accountants (who may also render other services to such
Servicer, the Master Servicer or any affiliate thereof) which is a member of the
American Institute of Certified Public Accountants to furnish a report (the
"Accountant's Attestation") to the Master Servicer, the Securities Administrator
and the Depositor to the effect that (i) it has obtained a representation
regarding certain matters from the management of such party, which includes an
assertion that such party has complied with the Relevant Servicing Criteria, and
(ii) on the basis of an examination conducted by such firm in accordance with
standards for attestation engagements issued or adopted by the Public Company
Accounting Oversight Board, it is expressing an opinion as to whether such
party's compliance with the Relevant Servicing Criteria was fairly stated in all
material respects, or it cannot express an overall opinion regarding such
party's assessment of compliance with the Relevant Servicing Criteria. In the
event that an overall opinion cannot be expressed, such registered public
accounting firm shall state in such report why it was unable to express such an
opinion. Such report must be available for general use and not contain
restricted use language. Such Accountant's Attestation shall be in accordance
with Rules 1-02(a)(3) and 2-02(g) of Regulation S-X under the Securities Act and
the Exchange Act.

     By March 1 (with a ten-calendar day cure period) of each year, commencing
in March 2007, the Master Servicer, the Securities Administrator and the
Custodian, each at its own expense, shall cause, and each such party shall cause
any Servicing Function Participant engaged by it to cause, each at its own
expense, a registered public accounting firm (which may also render other
services to the Master Servicer, the Securities Administrator, or such other
Servicing Function Participants, as the case may be) and that is a member of the
American Institute of Certified Public Accountants to furnish an attestation
report to the Securities Administrator and the Depositor, to the effect that (i)
it has obtained a representation regarding certain matters from the management
of such party, which includes an assertion that such party has complied with the
Relevant Servicing Criteria, and (ii) on the basis of an examination conducted
by such firm in accordance with standards for attestation engagements issued or
adopted by the Public Company Accounting Oversight Board, it is expressing an
opinion as to whether such party's compliance with the Relevant Servicing
Criteria was fairly stated in all material respects, or it cannot express an
overall opinion regarding such party's assessment of compliance with the
Relevant Servicing Criteria. In the event that an overall opinion cannot be
expressed, such registered public accounting firm shall state in such report why
it was unable to express such an opinion. Such report must be available for
general use and not contain restricted use language.

     (c) Promptly after receipt of each assessment of compliance and attestation
report, the Securities Administrator shall confirm that each assessment
submitted pursuant to Section 3.17(a) is coupled with an attestation meeting the
requirements of Section 3.17(b) and notify the Depositor of any exceptions.

     The Master Servicer shall include each such attestation furnished to it by
the Servicers with its own attestation to be submitted to the Securities
Administrator pursuant to this Section.


                                      -63-

<PAGE>

     In the event the Master Servicer, the Securities Administrator, the
Custodian, any Servicer or any Servicing Function Participant engaged by any
such party, is terminated, assigns its rights and duties under, or resigns
pursuant to the terms of, this Agreement, or any applicable Custodial Agreement,
Servicing Agreement or sub-servicing agreement, as the case may be, such party
shall cause a registered public accounting firm to provide an attestation
pursuant to this Section 3.17, or such other applicable agreement,
notwithstanding any such termination, assignment or resignation.

     Section 3.18 Periodic Filings.

     (a) Within four (4) Business Days after the occurrence of an event
requiring disclosure on Form 8-K (each such event, a "Reportable Event"), and if
requested by the Depositor, the Securities Administrator shall prepare and file
on behalf of the Issuing Entity a Form 8-K, as required by the Exchange Act,
provided that the Depositor shall file the initial Form 8-K in connection with
the issuance of the Certificates. Any disclosure or information related to a
Reportable Event or that is otherwise required to be included on Form 8-K (other
than the initial Form 8-K) ("Form 8-K Disclosure Information") shall be reported
by the parties set forth on Exhibit Q-3 to the Depositor and the Securities
Administrator and directed and approved by the Depositor, and the Securities
Administrator will have no duty or liability for any failure hereunder to
determine or prepare any Form 8-K Disclosure Information or any Form 8-K except
as set forth in the next paragraph.

     (b) For so long as the Issuing Entity is subject to the reporting
requirements of the Exchange Act, following the occurrence of a Reportable Event
(A) each party listed on Exhibit Q-3 hereto shall use commercially reasonable
best efforts to provide immediate notice to the Master Servicer, the Securities
Administrator and the Depositor, by fax and by phone or by e-mail and by phone,
(B) each such party shall be required to provide to the Securities Administrator
and the Depositor, to the extent known, in EDGAR-compatible format or in such
other format as agreed upon by the Securities Administrator and such party, the
form and substance of any Form 8-K Disclosure Information if applicable,
together with the form set forth on Exhibit O (the "Additional Disclosure
Notification") by the close of business New York City time on the 2nd Business
Day following the occurrence of such Reportable Event and (C) the Depositor,
shall approve, as to form and substance, or disapprove, as the case may be, the
inclusion of the Form 8-K Disclosure Information on Form 8-K. The Securities
Administrator has no duty under this Agreement to monitor or enforce the
performance by the parties listed on Exhibit Q-3 of their duties under this
paragraph or proactively solicit or procure from such parties any Form 8-K
Disclosure Information. The Depositor will be responsible for any reasonable
fees and expenses assessed or incurred by the Securities Administrator in
connection with including any Form 8-K Disclosure Information on Form 8-K
pursuant to this paragraph.

     (c) After preparing the Form 8-K, the Securities Administrator shall, upon
request, forward electronically a copy of the Form 8-K to the Depositor.
Promptly, but no later than the close of business on the third Business Day
after the Reportable Event, the Depositor shall notify the Securities
Administrator in writing (which may be furnished electronically) of any changes
to or approval of such Form 8-K. In the absence of receipt of any written
changes or approval, or if the Depositor does not request a copy of a Form 8-K,
the Securities Administrator shall be entitled to assume that such Form 8-K is
in final form and the Securities Administrator may


                                      -64-

<PAGE>

proceed with the process for execution and filing of the Form 8-K. A duly
authorized representative of the Master Servicer shall sign each Form 8-K. If a
Form 8-K cannot be filed on time or if a previously filed Form 8-K needs to be
amended, the Securities Administrator will follow the procedures set forth in
Section 3.18(n).

     (d) Promptly (but no later than one Business Day) after filing with the
Commission, the Securities Administrator will make available on its internet
website a final executed copy of each Form 8-K prepared and filed by the
Securities Administrator. The parties to this Agreement acknowledge that the
performance by the Master Servicer and the Securities Administrator of its
duties under this Section 3.18 related to the timely preparation, execution and
filing of Form 8-K is contingent upon the other parties hereto strictly
observing all applicable deadlines in the performance of their duties under this
Section 3.18. The Depositor acknowledges that the performance by the Master
Servicer and the Securities Administrator of its duties under this Section 3.18
related to the timely preparation, execution and filing of Form 8-K is also
contingent upon the Servicers, the Custodian and any Servicing Function
Participant strictly observing deadlines no later than those set forth in this
paragraph that are applicable to the parties to this Agreement in the delivery
to the Securities Administrator of any necessary Form 8-K Disclosure Information
pursuant to the related Servicing Agreements, the Custodial Agreement or any
other applicable agreement. Neither the Master Servicer nor the Securities
Administrator shall have any liability for any loss, expense, damage or claim
arising out of or with respect to any failure to properly prepare, execute
and/or timely file such Form 8-K, where such failure results from the Securities
Administrator's inability or failure to obtain or receive, on a timely basis,
any information from any other party hereto or any Servicer, Custodian or
Servicing Function Participant needed to prepare, arrange for execution or file
such Form 8-K.

     (e) Within fifteen (15) days after each Distribution Date (subject to
permitted extensions under the Exchange Act), the Securities Administrator
shall, on behalf of the Issuing Entity and in accordance with industry
standards, prepare and file with the Commission via the Electronic Data
Gathering and Retrieval System (EDGAR), a Form 10-D with a copy of the Monthly
Statement for such Distribution Date as an exhibit thereto. Any disclosure in
addition to the Monthly Statement that is required to be included on Form 10-D
("Additional Form 10-D Disclosure") shall be reported by the parties set forth
on Exhibit Q-1 to the Depositor and the Securities Administrator and directed
and approved by the Depositor pursuant to the following paragraph, and the
Securities Administrator will have no duty or liability for any failure
hereunder to determine or prepare any Additional Form 10-D Disclosure except as
set forth in the next paragraph.

     (f) As set forth in Exhibit Q-1 hereto, for so long as the Issuing Entity
is subject to the reporting requirements of the Exchange Act, within five (5)
calendar days after the related Distribution Date (i) each party listed on
Exhibit Q-1 hereto shall be required to provide to the Depositor and the
Securities Administrator, to the extent known, in EDGAR-compatible format or in
such other format as agreed upon by the Securities Administrator and such party,
the form and substance of any Additional Form 10-D Disclosure if applicable
together with an Additional Disclosure Notification, and (ii) the Depositor will
approve, as to form and substance, or disapprove, as the case may be, the
inclusion of the Additional Form 10-D Disclosure on Form 10-D. The Securities
Administrator has no duty under this Agreement to monitor or enforce the
performance by the parties listed on Exhibit Q-1 of their duties under this
paragraph or


                                      -65-

<PAGE>

proactively solicit or procure from such parties any Additional Form 10-D
Disclosure Information. The Depositor will be responsible for any reasonable
fees and expenses incurred by the Securities Administrator in connection with
including any Additional Form 10-D Disclosure on Form 10-D pursuant to this
paragraph.

     (g) After preparing the Form 10-D, the Securities Administrator shall, upon
request, forward electronically a copy of the Form 10-D to the Depositor
(provided that such Form 10-D includes any Additional Form 10-D Disclosure).
Within two Business Days after receipt of such copy, but no later than the 12th
calendar day after the Distribution Date, the Depositor shall notify the
Securities Administrator in writing (which may be furnished electronically) of
any changes to or approval of such Form 10-D. In the absence of receipt of any
written changes or approval, or if the Depositor does not request a copy of a
Form 10-D, the Securities Administrator shall be entitled to assume that such
Form 10-D is in final form and the Securities Administrator may proceed with the
process for execution and filing of the Form 10-D. A duly authorized
representative of the Master Servicer shall sign each Form 10-D. If a Form 10-D
cannot be filed on time or if a previously filed Form 10-D needs to be amended,
the Securities Administrator will follow the procedures set forth in Section
3.18(n). Promptly (but not later than one Business Day) after filing with the
Commission, the Securities Administrator will make available on its internet
website a final executed copy of each Form 10-D prepared and filed by the
Securities Administrator. Form 10-D requires the registrant to indicate (by
checking "yes" or "no") that it "(1) has filed all reports required to be filed
by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or
for such shorter period that the registrant was required to file such reports),
and (2) has been subject to such filing requirements for the past 90 days." The
Depositor hereby instructs the Securities Administrator, with respect to each
Form 10-D, to check "yes" for each item unless the Securities Administrator has
received timely prior written notice from the Depositor that the answer should
be "no" for an item. The parties to this Agreement acknowledge that the
performance by the Master Servicer and the Securities Administrator of its
respective duties under this Section 3.18 related to the timely preparation,
execution and filing of Form 10-D is contingent upon the other parties hereto
strictly observing all applicable deadlines in the performance of their duties
under this Section 3.18. The Depositor acknowledges that the performance by the
Master Servicer and the Securities Administrator of its duties under this
Section 3.18 related to the timely preparation, execution and filing of Form
10-D is also contingent upon the Servicers, the Custodian and any Servicing
Function Participant strictly observing deadlines no later than those set forth
in this paragraph that are applicable to the parties to this Agreement in the
delivery to the Securities Administrator of any necessary Additional Form 10-D
Disclosure pursuant to the related Servicing Agreements, the Custodial Agreement
or any other applicable agreement. Neither the Master Servicer nor the
Securities Administrator will have any liability for any loss, expense, damage
or claim arising out of or with respect to any failure to properly prepare,
execute and/or timely file such Form 10-D resulting from the Securities
Administrator's inability or failure to obtain or receive any information needed
to prepare, arrange for execution or file such Form 10-D on a timely basis.

     (h) On or prior to the 90th calendar day after the end of the fiscal year
for the Issuing Entity or such earlier date as may be required by the Exchange
Act (the "10-K Filing Deadline") (it being understood that the fiscal year for
the Issuing Entity ends on December 31st of each year) commencing in March 2008,
the Securities Administrator shall, on behalf of the Issuing Entity and in
accordance with industry standards, prepare and file with the Commission via


                                      -66-
<PAGE>

EDGAR a Form 10-K with respect to the Issuing Entity. Such Form 10-K shall
include the following items, in each case, as applicable, to the extent they
have been delivered to the Securities Administrator within the applicable time
frames set forth in this Agreement, the related Servicing Agreements and
Custodial Agreement: (i) an annual compliance statement for the Master Servicer,
each Servicer, the Securities Administrator and any Servicing Function
Participant engaged by any such party (together with the Custodian, each a
"Reporting Servicer"), as described in Section 3.16 of this Agreement, the
related Servicing Agreement and the Custodial Agreement; provided, however, that
the Securities Administrator, at its discretion, may omit from the Form 10-K any
annual compliance statement that is not required to be filed with such Form 10-K
pursuant to Regulation AB; (ii)(A) the annual reports on assessment of
compliance with Servicing Criteria for each Reporting Servicer (unless the
Depositor has determined that such compliance statement is not required by
Regulation AB), as described in Section 3.17 of this Agreement, the related
Servicing Agreement and the Custodial Agreement, and (B) if any Reporting
Servicer's report on assessment of compliance with Servicing Criteria described
in Section 3.17 identifies any material instance of noncompliance, disclosure
identifying such instance of noncompliance, or if any Reporting Servicer's
report on assessment of compliance with Servicing Criteria described in Section
3.17 of this Agreement is not included as an exhibit to such Form 10-K,
disclosure that such report is not included and an explanation why such report
is not included; provided, however, that the Securities Administrator, at its
discretion, may omit from the Form 10-K any assessment of compliance or
attestation report described in clause (iii) below that is not required to be
filed with such Form 10-K pursuant to Regulation AB; (iii)(A) the registered
public accounting firm attestation report for each Reporting Servicer, as
described in Section 3.17 of this Agreement, the related Servicing Agreement and
the Custodial Agreement, and (B) if any registered public accounting firm
attestation report described under Section 3.17 of this Agreement identifies any
material instance of noncompliance, disclosure identifying such instance of
noncompliance, or if any such registered public accounting firm attestation
report is not included as an exhibit to such Form 10-K, disclosure that such
report is not included and an explanation why such report is not included, and
(iv) a Sarbanes-Oxley Certification in the form attached hereto as Exhibit L,
executed by the senior officer in charge of the master servicing functions. Any
disclosure or information in addition to (i) through (iv) above that is required
to be included on Form 10-K ("Additional Form 10-K Disclosure") shall be
reported by the parties as set forth in Exhibit Q-2 to the Depositor and the
Securities Administrator and directed and approved by the Depositor pursuant to
the following paragraph and the Securities Administrator will have no duty or
liability for any failure hereunder to determine or prepare any Additional Form
10-K Disclosure except or set forth in the next paragraph.

     (i) As set forth in Exhibit Q-2 hereto, no later than March 1 (with a ten
calendar day cure period) of each year that the Issuing Entity is subject to the
Exchange Act reporting requirements, commencing in March 2008, (i) the parties
listed on Exhibit Q-2 hereto shall be required to provide to the Depositor and
the Securities Administrator, to the extent known, in EDGAR-compatible format or
in such other format as agreed upon by the Securities Administrator and such
party, the form and substance of any Additional Form 10-K Disclosure, if
applicable together with an Additional Disclosure Notification, and (ii) the
Depositor will approve, as to form and substance, or disapprove, as the case may
be, the inclusion of the Additional Form 10-K Disclosure. The Securities
Administrator has no duty under this Agreement to monitor or enforce the
performance by the parties listed on Exhibit Q-2 of their


                                      -67-

<PAGE>

duties under this paragraph or proactively solicit or procure from such parties
any Additional Form 10-K Disclosure Information. The Depositor will be
responsible for any reasonable fees and expenses incurred by the Securities
Administrator in connection with including any Additional Form 10-K Disclosure
on Form 10-K pursuant to this paragraph.

     (j) After preparing the Form 10-K, the Securities Administrator shall, upon
request, forward electronically a copy of the Form 10-K to the Depositor. Within
three Business Days after receipt of such copy, but no later than March 25th,
the Depositor shall notify the Securities Administrator in writing (which may be
furnished electronically) of any changes to or approval of such Form 10-K. In
the absence of receipt of any written changes or approval, or if the Depositor
does not request a copy of a Form 10-K, the Securities Administrator shall be
entitled to assume that such Form 10-K is in final form and the Securities
Administrator may proceed with the process for execution and filing of the Form
10-K. A senior officer of the Master Servicer in charge of the master servicing
function shall sign the Form 10-K. If a Form 10-K cannot be filed on time or if
a previously filed Form 10-K needs to be amended, the Securities Administrator
will follow the procedures set forth in Section 3.18(n). Promptly (but no later
than one Business Day) after filing with the Commission, the Securities
Administrator will make available on its internet website a final executed copy
of each Form 10-K prepared and filed by the Securities Administrator. Form 10-K
requires the registrant to indicate (by checking "yes" or "no") that it "(1) has
filed all reports required to be filed by Section 13 or 15(d) of the Exchange
Act during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days." The Depositor hereby instructs the
Securities Administrator, with respect to each Form 10-K, to check "yes" for
each item unless the Securities Administrator has received timely prior written
notice from the Depositor that the answer should be "no" for an item. The
parties to this Agreement acknowledge that the performance by the Master
Servicer and the Securities Administrator of its duties under this Section 3.18
related to the timely preparation, execution and filing of Form 10-K is
contingent upon such parties (and any Servicing Function Participant) strictly
observing all applicable deadlines in the performance of their duties under this
Section 3.18, Section 3.16 and Section 3.17. The Depositor acknowledges that the
performance by the Master Servicer and the Securities Administrator of its
duties under this Section 3.18 related to the timely preparation, execution and
filing of Form 10-K is also contingent upon the Servicers, the Custodian and any
Servicing Function Participant strictly observing deadlines no later than those
set forth in this paragraph that are applicable to the parties to this Agreement
in the delivery to the Securities Administrator of any necessary Additional Form
10-K Disclosure, any annual statement of compliance and any assessment of
compliance and attestation pursuant to the related Servicing Agreement, the
Custodial Agreement or any other applicable agreement. Neither the Master
Servicer nor the Securities Administrator shall have any liability for any loss,
expense, damage or claim arising out of or with respect to any failure to
properly prepare, execute and/or timely file such Form 10-K resulting from the
Securities Administrator's inability or failure to obtain or receive any
information from any other party hereto or any Servicer, Custodian or Servicing
Function Participant needed to prepare, execute or file such Form 10-K.

     (k) Each Form 10-K shall include a Sarbanes-Oxley Certification, which
shall be in the form attached hereto as Exhibit L. Each Servicer shall sign and
provide, and each of the Servicers, the Master Servicer and the Securities
Administrator shall cause any Servicing Function Participant engaged by it to
sign and provide, to the person who signs the Sarbanes-


                                      -68-

<PAGE>

Oxley Certification (the "Certifying Person") by March 1 (with a ten day cure
period) of each year in which the Issuing Entity is subject to the reporting
requirements of the Exchange Act and otherwise within a reasonable period of
time upon request, a certification (a "Back-Up Certification") (in the form
attached hereto as Exhibit M) upon which the Certifying Person, the entity for
which the Certifying Person acts as an officer and such entity's officers,
directors and affiliates (collectively, with the Certifying Person, the
"Certification Parties") can reasonably rely. The senior officer of the Master
Servicer in charge of the master servicing function shall serve as the
Certifying Person on behalf of the Trust. Such officer of the Certifying Person
can be contacted by e-mail at cts.sec.notifications@wellsfargo.com or by
facsimile at 410-715-2380. In the event any such party or Servicing Function
Participant engaged by any such party is terminated or resigns pursuant to the
terms of this Agreement, or any other applicable agreement, as the case may be,
such party shall provide a Back-Up Certification to the Master Servicer pursuant
to this Section 3.18 with respect to the period of time it was subject to this
Agreement or any other applicable agreement, as the case may be. Notwithstanding
the foregoing, (i) the Master Servicer and the Securities Administrator shall
not be required to deliver a Back-Up Certification to each other if both are the
same Person and the Master Servicer is the Certifying Person and (ii) the Master
Servicer shall not be obligated to sign the Sarbanes-Oxley Certification in the
event that it does not receive any Back-Up Certification required to be
furnished to it pursuant to this section or any Servicing Agreement or Custodial
Agreement.

     (l) The Securities Administrator shall have no responsibility to file any
items with the Commission other than those specified in this section and the
Master Servicer shall execute any and all Form 10-Ds, 8-Ks and 10-Ks required
hereunder.

     (m) On or prior to January 30 of the first year in which the Securities
Administrator is able to do so under applicable law, the Securities
Administrator shall prepare and file a Form 15 Suspension Notification relating
to the automatic suspension of reporting in respect of the Issuing Entity under
the Exchange Act.

     (n) In the event that the Securities Administrator is unable to timely file
with the Commission all or any required portion of any Form 8-K, 10-D or 10-K
required to be filed by this Agreement because required disclosure information
was either not delivered to it or delivered to it after the delivery deadlines
set forth in this Agreement or for any other reason, the Securities
Administrator will promptly notify electronically the Depositor of such
inability to make a timely filing with the Commission. In the case of Form 10-D
and 10-K, the parties to this Agreement will cooperate to prepare and file a
Form 12b-25 and a 10-D/A and 10K/A, as applicable, pursuant to Rule 12b-25 of
the Exchange Act. In the case of Form 8-K, the Securities Administrator will,
upon receipt of all required Form 8-K Disclosure Information and upon the
approval and direction of the Depositor, include such disclosure information on
the next succeeding Form 10-D to be filed for the Issuing Entity. In the event
that any previously filed Form 8-K, 10-D or 10-K needs to be amended, in
connection with any Additional Form 10-D Disclosure (other than, in the case of
Form 10-D, for the purpose of restating any Monthly Statement), Additional Form
10-K Disclosure or Form 8-K Disclosure Information, the Securities Administrator
will electronically notify the Depositor and such other parties to the
transaction as are affected by such amendment, and such parties will cooperate
to prepare any necessary 8-K/A, 10-D/A or 10-K/A. Any Form 15, Form 12b-25 or
any amendment to Form 8-K, 10-D or 10-K shall be signed by duly authorized
representative or a senior officer in charge of


                                      -69-

<PAGE>

master servicing, as applicable, of the Master Servicer. The parties to this
Agreement acknowledge that the performance by the Master Servicer of its duties
under this Section 3.18 related to the timely preparation, execution and filing
of Form 15, a Form 12b-25 or any amendment to Form 8-K, 10-D or 10-K is
contingent upon each such party performing its duties under this Section.
Neither the Master Servicer nor the Securities Administrator shall have any
liability for any loss, expense, damage or claim arising out of or with respect
to any failure to properly prepare, execute and/or timely file any such Form 15,
Form 12b-25 or any amendments to Forms 8-K, 10-D or 10-K, where such failure
results from the Securities Administrator's inability or failure to receive, on
a timely basis, any information from any other party hereto or any Servicer, any
Custodian or any Servicing Function Participant needed to prepare, arrange for
execution or file such Form 15, Form 12b-25 or any amendments to Forms 8-K, 10-D
or 10-K.

     (o) The Depositor and the Securities Administrator agree to use their good
faith efforts to cooperate in complying with the requirements of this Section
3.18.

     (p) Each of the parties agrees to provide to the Securities Administrator
such additional information related to such party as the Securities
Administrator may reasonably request, including evidence of the authorization of
the person signing any certificate or statement, financial information and
reports, and such other information related to such party or its performance
hereunder.

     (q) Any notice or notification required to be delivered by the Securities
Administrator or Master Servicer to the Depositor pursuant to this Section 3.18,
may be delivered via facsimile to (212) 449-2700, via email to paul_park@ml.com
or telephonically by calling Paul Park at (212) 449-6380.

     Section 3.19 Compliance with Regulation AB. Each of the parties hereto
acknowledges and agrees that the purpose of Sections 3.16, 3.17 and 3.18 is to
facilitate compliance by the Depositor with the provisions of Regulation AB, as
such may be amended or clarified from time to time. Therefore, each of the
parties agrees that the parties' obligations hereunder will be supplemented and
modified as necessary to be consistent with any such amendments, interpretive
advice or guidance, convention or consensus among active participants in the
asset-backed securities markets, advice of counsel, or otherwise in respect of
the requirements of Regulation AB and the parties shall comply with requests
made by the Depositor for delivery of additional or different information as the
Depositor may determine in good faith is necessary to comply with the provisions
of Regulation AB. Any such supplementation or modification shall be made in
accordance with Section 11.02 without the consent of the Certificateholders, and
may result in a change in the reports filed by the Securities Administrator on
behalf of the Issuing Entity under the Exchange Act.

                                   ARTICLE IV
                                    ACCOUNTS

     Section 4.01 Protected Accounts.

     (a) The Master Servicer shall enforce the obligation of each Servicer to
establish and maintain a Protected Account in accordance with the applicable
Servicing Agreement, with


                                      -70-

<PAGE>

records to be kept with respect thereto on a Mortgage Loan by Mortgage Loan
basis, into which accounts shall be deposited within two Business Days (or as of
such other time specified in the related Servicing Agreement) of receipt all
collections of principal and interest on any Mortgage Loan and with respect to
any REO Property received by a Servicer, including Principal Prepayments,
Insurance Proceeds, Liquidation Proceeds, Subsequent Recoveries and advances
made from the Servicer's own funds (less servicing compensation as permitted by
the applicable Servicing Agreement in the case of the Servicer) and all other
amounts to be deposited in the Protected Account. The Servicer is hereby
authorized to make withdrawals from and deposits to the related Protected
Account for purposes required or permitted by this Agreement. To the extent
provided in the related Servicing Agreement, the Protected Account shall be held
in a Designated Depository Institution and segregated on the books of such
institution in the name of the Trustee for the benefit of Certificateholders.

     (b) To the extent provided in the related Servicing Agreement, amounts on
deposit in a Protected Account may be invested in Permitted Investments in the
name of the Trustee for the benefit of Certificateholders and, except as
provided in the preceding paragraph, not commingled with any other funds, such
Permitted Investments to mature, or to be subject to redemption or withdrawal,
no later than the date on which such funds are required to be withdrawn for
deposit in the Master Servicer Collection Account, and shall be held until
required for such deposit. The income earned from Permitted Investments made
pursuant to this Section 4.01 shall be paid to the related Servicer under the
applicable Servicing Agreement, and the risk of loss of moneys required to be
distributed to the Certificateholders resulting from such investments shall be
borne by and be the risk of the related Servicer, as set forth in the applicable
Servicing Agreement. The related Servicer (to the extent provided in the related
Servicing Agreement) shall deposit the amount of any such loss in the Protected
Account within two Business Days of receipt of notification of such loss but not
later than the second Business Day prior to the Distribution Date on which the
moneys so invested are required to be distributed to the Certificateholders.

     (c) To the extent provided in the related Servicing Agreement and subject
to this Article IV, on or before each Servicer Remittance Date, the related
Servicer shall withdraw or shall cause to be withdrawn from the Protected
Accounts and shall immediately deposit or cause to be deposited in the Master
Servicer Collection Account amounts representing the following collections and
payments (other than with respect to principal of or interest on the Mortgage
Loans due on or before the Cut-off Date) with respect to each Loan Group:

          (i) Monthly Payments on the Mortgage Loans received or any related
     portion thereof advanced by such Servicer pursuant to the related Servicing
     Agreement which were due on or before the related Due Date, net of the
     amount thereof comprising the Servicing Fees;

          (ii) Principal Prepayments in Full and any Liquidation Proceeds
     received by such Servicer with respect to such Mortgage Loans in the
     related Prepayment Period, with interest to the date of prepayment or
     liquidation, net of the amount thereof comprising the Servicing Fees;

          (iii) Curtailments received by such Servicer for such Mortgage Loans
     in the related Prepayment Period; and


                                      -71-

<PAGE>

          (iv) Any amount to be used as a Monthly Advance.

     (d) Withdrawals by the Master Servicer may be made from an Account only to
make remittances as provided in Section 4.01(c), 4.02 and 4.03; to reimburse the
Master Servicer or a Servicer for Monthly Advances which have been recovered by
subsequent collection from the related Mortgagor; to remove amounts deposited in
error; to remove fees, charges or other such amounts deposited on a temporary
basis; or to clear and terminate the account at the termination of this
Agreement in accordance with Section 10.01. As provided in Sections 4.01(c) and
4.02(b) certain amounts otherwise due to the Servicers may be retained by them
as set forth in the related Servicing Agreements and need not be deposited in
the Master Servicer Collection Account.

     Section 4.02 Master Servicer Collection Account.

     (a) The Master Servicer shall establish and maintain in the name of the
Trustee, for the benefit of the Certificateholders, the Master Servicer
Collection Account as a segregated trust account or accounts. The Master
Servicer Collection Account may be a sub-account of the Distribution Account.
The Master Servicer will deposit in the Master Servicer Collection Account as
identified by the Master Servicer and as received by the Master Servicer, the
following amounts:

          (i) Any amounts withdrawn from a Protected Account or other permitted
     account;

          (ii) Any Monthly Advance and any Compensating Interest Payments;

          (iii) Any Insurance Proceeds, Liquidation Proceeds or Subsequent
     Recoveries received by or on behalf of the Master Servicer or which were
     not deposited in a Protected Account or other permitted account;

          (iv) The repurchase price with respect to any Mortgage Loans
     repurchased and all proceeds of any Mortgage Loans or property acquired in
     connection with the optional termination of the trust;

          (v) Any amounts required to be deposited with respect to losses on
     investments of deposits in an Account; and

          (vi) Any other amounts received by or on behalf of the Master Servicer
     and required to be deposited in the Master Servicer Collection Account
     pursuant to this Agreement.

     (b) All amounts deposited to the Master Servicer Collection Account shall
be held by the Master Servicer in the name of the Trustee in trust for the
benefit of the Certificateholders in accordance with the terms and provisions of
this Agreement. The requirements for crediting the Master Servicer Collection
Account or the Distribution Account shall be exclusive, it being understood and
agreed that, without limiting the generality of the foregoing, payments in the
nature of (i) prepayment or late payment charges or assumption, tax service,
statement account or payoff, substitution, satisfaction, release and other like
fees and charges and (ii) the items enumerated in Subsections 4.05(a)(i), (ii),
(iii), (iv), (vi), (vii), (viii), (ix), (xi) and (xii) with


                                       -72-

<PAGE>

respect to the Securities Administrator, need not be credited by the Master
Servicer or the related Servicer to the Distribution Account or the Master
Servicer Collection Account, as applicable. In the event that the Master
Servicer shall deposit or cause to be deposited to the Distribution Account any
amount not required to be credited thereto, the Securities Administrator, upon
receipt of a written request therefor signed by a Servicing Officer of the
Master Servicer, shall promptly transfer such amount to the Master Servicer from
the Distribution Account, any provision herein to the contrary notwithstanding.

     (c) The amount at any time credited to the Master Servicer Collection
Account shall be invested, in the name of the Trustee, or its nominee, for the
benefit of the Certificateholders, in Permitted Investments as directed by
Master Servicer. All Permitted Investments shall mature or be subject to
redemption or withdrawal on or before,


 
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