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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT | Document Parties: MORGAN STANLEY HOME EQUITY LOAN TRUST 2007-1 | SAXON MORTGAGE SERVICES, INC., | WELLS FARGO BANK, NATIONAL ASSOCIATION, | COUNTRYWIDE HOME LOANS SERVICING LP, | FIRST NLC FINANCIAL SERVICES, LLC, | DEUTSCHE BANK NATIONAL TRUST COMPANY, You are currently viewing:
This Pooling and Servicing Agreement involves

MORGAN STANLEY HOME EQUITY LOAN TRUST 2007-1 | SAXON MORTGAGE SERVICES, INC., | WELLS FARGO BANK, NATIONAL ASSOCIATION, | COUNTRYWIDE HOME LOANS SERVICING LP, | FIRST NLC FINANCIAL SERVICES, LLC, | DEUTSCHE BANK NATIONAL TRUST COMPANY,

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 3/14/2007

POOLING AND SERVICING AGREEMENT, Parties: morgan stanley home equity loan trust 2007-1 , saxon mortgage services  inc.  , wells fargo bank  national association  , countrywide home loans servicing lp  , first nlc financial services  llc  , deutsche bank national trust company
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                                                                       Exhibit 4

                       MORGAN STANLEY ABS CAPITAL I INC.,
                                   Depositor,

                         SAXON MORTGAGE SERVICES, INC.,
                                     Servicer,

                     WELLS FARGO BANK, NATIONAL ASSOCIATION,
                             Servicer and Custodian,

                      COUNTRYWIDE HOME LOANS SERVICING LP,
                                    Servicer,

                        FIRST NLC FINANCIAL SERVICES, LLC,
                               Responsible Party,

                                       and

                      DEUTSCHE BANK NATIONAL TRUST COMPANY,
                                     Trustee


         --------------------------------------------------------------

                         POOLING AND SERVICING AGREEMENT

                          Dated as of February 1, 2007


         --------------------------------------------------------------

                  MORGAN STANLEY HOME EQUITY LOAN TRUST 2007-1

                       MORTGAGE PASS THROUGH CERTIFICATES,
                                  SERIES 2007-1


<PAGE>


                                TABLE OF CONTENTS

                                     ARTICLE I

                                   DEFINITIONS

                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                         REPRESENTATIONS AND WARRANTIES

Section 2.01   Conveyance of Mortgage Loans.................................

Section 2.02   Acceptance by the Trustee of the Mortgage Loans..............

Section 2.03   Representations and Warranties; Remedies for Breaches of
               Representations and Warranties with Respect to the
               Mortgage Loans..............................................

Section 2.04   Execution and Delivery of Certificates.......................

Section 2.05   REMIC Matters................................................

Section 2.06   Representations and Warranties of the Depositor..............

Section 2.07   Enforcement of Obligations for Breach of Mortgage Loan
               Representations.............................................

                                   ARTICLE III

                          ADMINISTRATION AND SERVICING
                                OF MORTGAGE LOANS

Section 3.01   Servicers to Service Mortgage Loans..........................

Section 3.02   Subservicing Agreements between a Servicer and
                Subservicers................................................

Section 3.03   Successor Subservicers.......................................

Section 3.04   Liability of the Servicers...................................

Section 3.05   No Contractual Relationship between Subservicers and the
               Trustee.....................................................

Section 3.06   Assumption or Termination of Subservicing Agreements by
               Trustee.....................................................

Section 3.07   Collection of Certain Mortgage Loan Payments.................

Section 3.08   Subservicing Accounts........................................

Section 3.09   Collection of Taxes, Assessments and Similar Items;
               Escrow Accounts.............................................

Section 3.10   Collection Accounts..........................................

Section 3.11   Withdrawals from the Collection Accounts.....................

Section 3.12   Investment of Funds in the Collection Accounts and the
               Distribution Account........................................

Section 3.13   Maintenance of Hazard Insurance and Errors and Omissions
               and Fidelity Coverage.......................................

Section 3.14   Enforcement of "Due-on-Sale" Clauses; Assumption
               Agreements..................................................

Section 3.15   Realization upon Defaulted Mortgage Loans....................

Section 3.16   Release of Mortgage Files....................................

Section 3.17   Title, Conservation and Disposition of REO Property..........

Section 3.18   Notification of Adjustments..................................

Section 3.19   Access to Certain Documentation and Information Regarding
                the Mortgage Loans..........................................

Section 3.20   Documents, Records and Funds in Possession of the
               Servicers to Be Held for the Trustee........................

Section 3.21   Servicing Compensation.......................................

Section 3.22   Annual Statement as to Compliance............................

Section 3.23   Annual Reports on Assessment of Compliance with Servicing
               Criteria; Annual Independent Public Accountants'
                Attestation Report..........................................

Section 3.24   Trustee to Act as Servicer...................................

Section 3.25   Compensating Interest........................................

Section 3.26   Credit Reporting; Gramm-Leach-Bliley Act.....................

Section 3.27   Optional Purchase of Delinquent Mortgage Loans...............

                                   ARTICLE IV

                                DISTRIBUTIONS AND
                            ADVANCES BY THE SERVICERS

Section 4.01   Advances.....................................................

Section 4.02   Priorities of Distribution...................................

Section 4.03   Monthly Statements to Certificateholders.....................

Section 4.04   Certain Matters Relating to the Determination of LIBOR.......

Section 4.05   Allocation of Applied Realized Loss Amounts..................

Section 4.06   Swap Account.................................................

                                     ARTICLE V

                                THE CERTIFICATES

Section 5.01   The Certificates.............................................

Section 5.02   Certificate Register; Registration of Transfer and
               Exchange of Certificates....................................

Section 5.03   Mutilated, Destroyed, Lost or Stolen Certificates............

Section 5.04   Persons Deemed Owners........................................

Section 5.05   Access to List of Certificateholders' Names and Addresses....

Section 5.06   Maintenance of Office or Agency..............................

                                   ARTICLE VI

                         THE DEPOSITOR AND THE SERVICERS

Section 6.01   Respective Liabilities of the Depositor and the Servicers....

Section 6.02   Merger or Consolidation of the Depositor or a Servicer.......

Section 6.03   Limitation on Liability of the Depositor, the Servicers
               and Others..................................................

Section 6.04   Limitation on Resignation of a Servicer......................

Section 6.05   Additional Indemnification by the Servicers; Third Party
               Claims......................................................

                                   ARTICLE VII

                                      DEFAULT

Section 7.01   Events of Default............................................

Section 7.02   Trustee to Act; Appointment of Successor.....................

Section 7.03   Notification to Certificateholders...........................

                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

Section 8.01   Duties of the Trustee........................................

Section 8.02   Certain Matters Affecting the Trustee and the Custodian......

Section 8.03   Trustee Not Liable for Certificates or Mortgage Loans........

Section 8.04   Trustee May Own Certificates.................................

Section 8.05   Trustee's Fees and Expenses..................................

Section 8.06   Eligibility Requirements for the Trustee.....................

Section 8.07   Resignation and Removal of the Trustee.......................

Section 8.08   Successor Trustee............................................

Section 8.09   Merger or Consolidation of the Trustee.......................

Section 8.10   Appointment of Co-Trustee or Separate Trustee................

Section 8.11   Tax Matters..................................................

Section 8.12   Periodic Filings.............................................

Section 8.13   Tax Treatment of Upper-Tier CarryForward Amounts, Basis
               Risk CarryForward Amounts and Class IO Shortfalls; Tax
               Classification of the Excess Reserve Fund Account, Swap
               Account and the Interest Rate Swap Agreement................

Section 8.14   Custodial Responsibilities...................................

                                   ARTICLE IX

                                   TERMINATION

Section 9.01   Termination upon Liquidation or Purchase of the Mortgage
               Loans.......................................................

Section 9.02   Final Distribution on the Certificates.......................

Section 9.03   Additional Termination Requirements..........................

                                    ARTICLE X

                            MISCELLANEOUS PROVISIONS

Section 10.01 Amendment....................................................

Section 10.02 Recordation of Agreement; Counterparts.......................

Section 10.03 Governing Law................................................

Section 10.04 Intention of Parties.........................................

Section 10.05 Notices......................................................

Section 10.06 Severability of Provisions...................................

Section 10.07 Assignment; Sales; Advance Facilities........................

Section 10.08 Limitation on Rights of Certificateholders...................

Section 10.09 Inspection and Audit Rights..................................

Section 10.10 Certificates Nonassessable and Fully Paid....................

Section 10.11 Rule of Construction.........................................

Section 10.12 Waiver of Jury Trial.........................................

Section 10.13 Rights of the Third Parties..................................

Section 10.14 Regulation AB Compliance; Intent of the Parties;
               Reasonableness..............................................


SCHEDULES

Schedule I       Mortgage Loan Schedule

Schedule II      Representations and Warranties of Saxon Mortgage Services,
                  Inc., as Servicer

Schedule II-A    Further Representations and Warranties of Saxon

Schedule III     Representations and Warranties of Morgan Stanley ABS
                  Capital I Inc. as to the Mortgage Loans

Schedule IV      Representations and Warranties of First NLC as to the First
                  NLC Mortgage Loans

Schedule V       Representations and Warranties of Wells Fargo Bank,
                   National Association, as Servicer

Schedule VI      Representations and Warranties of Countrywide Home Loans
                  Servicing LP, as Servicer

EXHIBITS

Exhibit A        Form of Class A, Class M and Class B Certificate

Exhibit B         Form of Class P Certificate

Exhibit C-1      Form of Class R Certificate

Exhibit C-2      Form of Class RX Certificate

Exhibit D        Form of Class X Certificate

Exhibit E        Form of Initial Certification of [Custodian][Trustee]

Exhibit F        Form of Document Certification and Exception Report of
                  [Custodian][Trustee]

Exhibit G        Form of Residual Transfer Affidavit

Exhibit H        Form of Transferor Certificate

Exhibit I        Form of Rule 144A Letter

Exhibit J        Form of Request for Release

Exhibit K        Form of Contents for Each Mortgage File

Exhibit L        Form of Certification to be provided with Form 10-K

Exhibit M        Form of Certification to be provided by the Trustee to
                  Depositor

Exhibit N        Form of Certification to be provided by the Servicer to
                  Depositor

Exhibit O        First NLC Purchase Agreement

Exhibit P        [Reserved]

Exhibit Q        Accredited Agreements

Exhibit R        Wilmington Agreements

Exhibit S        Fremont Agreements

Exhibit T        Form of Servicer Power of Attorney

Exhibit U        Servicing Criteria - To Be Addressed in Assessment of
                  Compliance

Exhibit V        Additional Form 10-D Disclosure

Exhibit W        Additional Form 10-K Disclosure

Exhibit X        Form 8-K Disclosure Information

Exhibit Y        Interest Rate Swap Agreement

Exhibit Z        Form of Additional Disclosure Notification

Exhibit AA-1     Form of Saxon and Wells Fargo Servicer Reports

Exhibit AA-2      Form of Countrywide Servicer Reports

Exhibit BB       Countrywide Amendment Regulation AB

Exhibit CC       Representations and Warranties Agreement


<PAGE>


            THIS POOLING AND SERVICING AGREEMENT, dated as of February 1, 2007,
among MORGAN STANLEY ABS CAPITAL I INC., a Delaware corporation, as depositor
(the "Depositor"), SAXON MORTGAGE SERVICES, INC., a Delaware corporation, as a
servicer ("Saxon"), WELLS FARGO BANK, NATIONAL ASSOCIATION, a national banking
association, as a servicer and as custodian ("Wells Fargo" and in its capacity
as custodian, the "Custodian"), COUNTRYWIDE HOME LOANS SERVICING LP, a Texas
limited partnership, as a servicer ("Countrywide Servicing" and together with
Saxon and Wells Fargo, as a servicer, the "Servicers"), FIRST NLC FINANCIAL
SERVICES, LLC, a Florida limited liability company, as the responsible party
("First NLC" or the "Responsible Party") and DEUTSCHE BANK NATIONAL TRUST
COMPANY, a national banking association, as trustee (the "Trustee").

                               W I T N E S S E T H:

            In consideration of the mutual agreements herein contained, the
parties hereto agree as follows:

                              PRELIMINARY STATEMENT

            The Trustee shall elect that five segregated asset pools within the
Trust Fund (exclusive of (i) the Prepayment Premiums, (ii) the Swap Assets,
(iii) the Excess Reserve Fund Account, and (iv) the right of the Offered
Certificates to receive Basis Risk CarryForward Amounts and, without
duplication, Upper-Tier CarryForward Amounts and the obligation to pay Class IO
Shortfalls) be treated for federal income tax purposes as comprising five REMICs
(Pooling-Tier REMIC-1, Pooling-Tier REMIC-2, the Lower-Tier REMIC, the
Upper-Tier REMIC and the Class X REMIC, respectively, and each, a "Trust
REMIC"). The Class X Interest, the Class IO Interest and each Class of Offered
Certificates (other than the right of each Class of Offered Certificates to
receive Basis Risk CarryForward Amounts and, without duplication, Upper-Tier
CarryForward Amounts and the obligation to pay Class IO Shortfalls) represents
ownership of a regular interest in a REMIC for purposes of the REMIC Provisions.
The Class R Certificates represent ownership of the sole class of residual
interest in each of Pooling-Tier REMIC-1, Pooling-Tier REMIC-2, the Lower-Tier
REMIC and the Upper-Tier REMIC for purposes of the REMIC Provisions. The Class
RX Certificates represent ownership of the sole class of residual interest in
the Class X REMIC for purposes of the REMIC provisions. The Startup Day for each
Trust REMIC described herein is the date referenced in Section 2.05. The latest
possible maturity date for each regular interest is the latest date referenced
in Section 2.05. The Class X REMIC shall hold as assets the Class UT-X Interest
and the Class UT-IO Interest as set out below. The Upper-Tier REMIC shall hold
as assets the several classes of uncertificated Lower-Tier Regular Interests,
set out below. The Lower-Tier REMIC shall hold as assets the several classes of
uncertificated Pooling-Tier REMIC-2 Regular Interests. Pooling-Tier REMIC-2
shall hold as assets the several classes of uncertificated Pooling-Tier REMIC-1
Regular Interests. Pooling-Tier REMIC-1 shall hold as assets the assets of the
Trust Fund (exclusive of (i) the Prepayment Premiums, (ii) the Swap Assets,
(iii) the Excess Reserve Fund Account, and (iv) the right of the Offered
Certificates to receive Basis Risk CarryForward Amounts and, without
duplication, Upper-Tier CarryForward Amounts and the obligation to pay Class IO
Shortfalls).

            For federal income tax purposes, each Class of Offered Certificates
represents a beneficial ownership of a regular interest in the Upper-Tier REMIC,
the right to receive Basis Risk CarryForward Amounts and without duplication,
Upper-Tier CarryForward Amounts, and the obligation to pay Class IO Shortfalls;
the Class X Certificates represent beneficial ownership of the Class X Interest,
the Class IO Interest, the Interest Rate Swap Agreement, the Swap Account, the
Excess Reserve Fund Account and the right to receive Class IO Shortfalls,
subject to the obligation to pay Basis Risk CarryForward Amounts and, without
duplication, Upper-Tier CarryForward Amounts; and the Class P Certificates
represent beneficial ownership of the Prepayment Premiums, which portions of the
Trust Fund shall be treated as a grantor trust under subpart E, Part I of
subchapter J of the Code (the "Grantor Trust").

                              Pooling-Tier REMIC-1

            Pooling-Tier REMIC-1 shall issue the following interests in
Pooling-Tier REMIC-1, and each such interest, other than the Class PT1-R
Interest is hereby designated as a regular interest in the Pooling-Tier REMIC-1.
Pooling-Tier REMIC-1 shall also issue the Class PT1-R Interest, which is hereby
designated as the sole class of residual interest in Pooling-Tier REMIC-1. The
Class PT1-R Interest shall be represented by the Class R Certificates, shall not
have a principal balance and shall have no interest rate.

                                  Pooling-Tier      Initial Pooling
               Pooling-Tier         REMIC-1          Tier REMIC-1
             REMIC-1 Interest    Interest Rate     Principal Amount
             ----------------    -------------     ----------------
              Class PT1-1             (1)           $56,421,787.40
              Class PT1-2A            (2)           $11,825,350.04
              Class PT1-2B            (3)           $11,825,350.04
              Class PT1-3A            (2)           $11,455,741.75
              Class PT1-3B            (3)           $11,455,741.75
              Class PT1-4A            (2)           $11,105,282.95
              Class PT1-4B            (3)           $11,105,282.95
              Class PT1-5A            (2)           $10,772,389.63
              Class PT1-5B            (3)           $10,772,389.63
              Class PT1-6A            (2)           $10,455,526.02
              Class PT1-6B            (3)           $10,455,526.02
              Class PT1-7A            (2)            $10,153,207.81
              Class PT1-7B            (3)           $10,153,207.81
              Class PT1-8A            (2)           $ 9,864,005.48
              Class PT1-8B            (3)           $ 9,864,005.48
              Class PT1-9A            (2)            $ 9,586,410.58
              Class PT1-9B            (3)           $ 9,586,410.58
              Class PT1-10A           (2)           $ 9,318,824.10
              Class PT1-10B           (3)           $ 9,318,824.10
              Class PT1-11A           (2)           $ 9,060,477.38
              Class PT1-11B           (3)           $ 9,060,477.38
              Class PT1-12A           (2)           $ 8,810,196.82
              Class PT1-12B           (3)           $ 8,810,196.82
              Class PT1-13A            (2)           $ 8,554,540.97
              Class PT1-13B           (3)           $ 8,554,540.97
              Class PT1-14A           (2)           $ 8,202,227.64
              Class PT1-14B           (3)           $ 8,202,227.64
              Class PT1-15A            (2)           $ 7,853,996.37
              Class PT1-15B           (3)           $ 7,853,996.37
              Class PT1-16A           (2)           $ 7,520,664.85
              Class PT1-16B           (3)           $ 7,520,664.85
              Class PT1-17A           (2)           $ 7,201,591.24
              Class PT1-17B           (3)           $ 7,201,591.24
              Class PT1-18A           (2)           $ 6,896,161.46
              Class PT1-18B           (3)           $ 6,896,161.46
              Class PT1-19A           (2)           $ 6,939,739.92
              Class PT1-19B           (3)           $ 6,939,739.92
              Class PT1-20A           (2)           $ 9,224,866.32
              Class PT1-20B           (3)           $ 9,224,866.32
              Class PT1-21A           (2)           $21,664,970.13
              Class PT1-21B           (3)           $21,664,970.13
              Class PT1-22A           (2)           $ 6,011,549.61
              Class PT1-22B           (3)           $ 6,011,549.61
              Class PT1-23A           (2)           $ 4,695,573.83
              Class PT1-23B           (3)           $ 4,695,573.83
              Class PT1-24A           (2)           $ 4,499,109.00
              Class PT1-24B           (3)           $ 4,499,109.00
               Class PT1-25A           (2)           $ 4,651,660.58
              Class PT1-25B           (3)           $ 4,651,660.58
              Class PT1-26A           (2)           $ 7,075,124.46
              Class PT1-26B           (3)           $ 7,075,124.46
               Class PT1-27A           (2)           $19,787,361.97
              Class PT1-27B           (3)           $19,787,361.97
              Class PT1-28A           (2)           $ 4,014,654.42
              Class PT1-28B           (3)           $ 4,014,654.42
               Class PT1-29A           (2)           $ 2,771,924.51
              Class PT1-29B           (3)           $ 2,771,924.51
              Class PT1-30A           (2)           $ 2,658,668.55
              Class PT1-30B           (3)           $ 2,658,668.55
              Class PT1-31A           (2)           $ 2,754,263.37
              Class PT1-31B           (3)           $ 2,754,263.37
              Class PT1-32A           (2)           $ 4,783,503.16
              Class PT1-32B           (3)           $ 4,783,503.16
              Class PT1-33A           (2)           $17,093,435.58
              Class PT1-33B           (3)           $17,093,435.58
              Class PT1-34A           (2)           $ 2,314,672.96
              Class PT1-34B           (3)           $ 2,314,672.96
              Class PT1-35A           (2)           $ 1,381,714.99
              Class PT1-35B           (3)           $ 1,381,714.99
              Class PT1-36A           (2)           $ 1,328,519.58
              Class PT1-36B           (3)           $ 1,328,519.58
              Class PT1-37A           (2)           $ 1,287,283.22
              Class PT1-37B           (3)           $ 1,287,283.22
              Class PT1-38A           (2)           $ 1,894,218.62
              Class PT1-38B           (3)            $ 1,894,218.62
              Class PT1-39A           (2)           $ 6,976,231.74
              Class PT1-39B           (3)           $ 6,976,231.74
              Class PT1-40A           (2)           $ 1,075,398.07
              Class PT1-40B           (3)            $ 1,075,398.07
              Class PT1-41A           (2)           $    805,507.42
              Class PT1-41B           (3)           $    805,507.42
              Class PT1-42A           (2)           $    776,371.02
              Class PT1-42B           (3)           $    776,371.02
              Class PT1-43A           (2)           $    753,937.98
              Class PT1-43B           (3)           $    753,937.98
              Class PT1-44A           (2)           $ 1,101,402.11
              Class PT1-44B           (3)           $ 1,101,402.11
              Class PT1-45A           (2)           $ 3,999,810.80
              Class PT1-45B           (3)           $ 3,999,810.80
              Class PT1-46A           (2)           $    635,749.77
              Class PT1-46B            (3)           $    635,749.77
              Class PT1-47A           (2)           $    482,592.55
              Class PT1-47B           (3)           $    482,592.55
              Class PT1-48A           (2)           $    466,528.06
              Class PT1-48B            (3)           $    466,528.06
              Class PT1-49A           (2)           $    450,985.79
              Class PT1-49B           (3)           $    450,985.79
              Class PT1-50A           (2)           $    435,949.30
              Class PT1-50B           (3)           $    435,949.30
              Class PT1-51A           (2)           $    421,402.65
              Class PT1-51B           (3)           $    421,402.65
              Class PT1-52A           (2)           $    407,330.42
              Class PT1-52B           (3)           $    407,330.42
              Class PT1-53A           (2)           $    393,717.58
              Class PT1-53B           (3)           $    393,717.58
              Class PT1-54A           (2)           $    380,549.62
              Class PT1-54B           (3)           $    380,549.62
              Class PT1-55A           (2)           $    379,125.01
              Class PT1-55B           (3)           $    379,125.01
              Class PT1-56A           (2)           $    354,991.03
               Class PT1-56B           (3)           $    354,991.03
              Class PT1-57A           (2)           $    389,829.34
              Class PT1-57B           (3)           $    389,829.34
              Class PT1-58A           (2)           $    376,470.56
               Class PT1-58B           (3)           $    376,470.56
              Class PT1-59A           (2)           $    317,065.27
              Class PT1-59B           (3)           $    317,065.27
              Class PT1-60A           (2)           $    306,445.27
               Class PT1-60B           (3)           $    306,445.27
              Class PT1-61A           (2)           $    307,625.63
              Class PT1-61B           (3)           $    307,625.63
              Class PT1-62A           (2)           $    285,722.36
               Class PT1-62B           (3)           $    285,722.36
              Class PT1-63A           (2)           $    323,370.02
              Class PT1-63B           (3)           $    323,370.02
              Class PT1-64A           (2)           $    311,485.85
              Class PT1-64B           (3)           $    311,485.85
              Class PT1-65A           (2)           $    253,761.64
              Class PT1-65B           (3)           $    253,761.64
              Class PT1-66A           (2)           $    245,273.97
              Class PT1-66B           (3)           $    245,273.97
              Class PT1-67A           (2)           $    243,589.38
              Class PT1-67B           (3)           $    243,589.38
              Class PT1-68A           (2)           $    228,829.00
              Class PT1-68B           (3)           $    228,829.00
              Class PT1-69A           (2)           $    248,050.64
              Class PT1-69B           (3)           $    248,050.64
              Class PT1-70A           (2)           $    239,139.60
              Class PT1-70B           (3)           $    239,139.60
              Class PT1-71A           (2)           $    204,215.74
              Class PT1-71B           (3)           $    204,215.74
              Class PT1-72A           (2)            $    197,381.06
              Class PT1-72B           (3)           $    197,381.06
              Class PT1-73A           (2)           $ 5,579,149.27
              Class PT1-73B           (3)           $ 5,579,149.27
              Class PT1-R             (4)                        (4)

---------

(1)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-1 Regular Interest shall bear interest at a per-annum
     rate (its "Pooling-Tier REMIC-1 Interest Rate") equal to the Pooling-Tier
     REMIC-1 WAC Rate.

(2)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-1 Regular Interest shall bear interest at a per-annum
     rate (its "Pooling-Tier REMIC-1 Interest Rate") equal to the product of (i)
     2 and (ii) the Pooling-Tier REMIC-1 WAC Rate, subject to a maximum rate of
     10.64%.

(3)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-1 Regular Interest shall bear interest at a per-annum
     rate (its "Pooling-Tier REMIC-1 Interest Rate") equal to the excess, if
     any, of (A) the product of (i) 2 and (ii) the Pooling-Tier REMIC-1 WAC Rate
     over (B) 10.64%.

(4)   The Class PT1-R Interest shall not have a principal balance and shall not
     bear interest.

            On each Distribution Date, the interest distributable in respect of
the Mortgage Loans for such Distribution Date shall be deemed to be distributed
to the Pooling-Tier REMIC-1 Regular Interests at the rates shown above.

            On each Distribution Date, Realized Losses, Subsequent Recoveries
and payments of principal in respect of the Mortgage Loans (including, for the
first Distribution Date only, the Closing Date Deposit Amount) shall be
allocated to the outstanding Pooling-Tier REMIC-1 Regular Interest with the
lowest numerical denomination until the Pooling-Tier REMIC-1 Principal Amount of
such interest is reduced to zero, provided that, with respect to Pooling-Tier
REMIC-1 Regular Interests with the same numerical denomination, such Realized
Losses, Subsequent Recoveries and payments of principal shall be allocated pro
rata between such Pooling-Tier REMIC-1 Regular Interests, until the Pooling-Tier
REMIC-1 Principal Amount of such interests is reduced to zero.

                              Pooling-Tier REMIC-2

            Pooling-Tier REMIC-2 shall issue the following interests in
Pooling-Tier REMIC-2, and each such interest, other than the Class PT2-R
Interest, is hereby designated as a regular interest in Pooling-Tier REMIC-2.
The Class PT2-R Interest is hereby designated as the sole class of residual
interest in Pooling-Tier REMIC-2 and shall be represented by the Class R
Certificates.


<TABLE>
<CAPTION>
                                                                                                                   Corresponding
                         Pooling-Tier             Pooling-Tier               Corresponding      Corresponding           Scheduled
                           REMIC-2                REMIC-2 Initial              Pooling-Tier       Pooling-Tier           Crossover
   Pooling-Tier            Interest                  Principal                  REMIC-2 IO           REMIC-1           Distribution
REMIC-2 Interest             Rate                       Amount                    Interest        Regular Interest           Date
-----------------         ------------           ------------------           --------------     ----------------      -------------
<S>                         <C>                 <C>                           <C>                 <C>                 <C>
Class PT2-1                  (1)                 $     56,421,787.40                 N/A                 N/A                 N/A
Class PT2-2A                 (2)                 $     11,825,350.04           Class PT2-IO-2            N/A                 N/A
Class PT2-2B                 (3)                 $     11,825,350.04                 N/A                 N/A                 N/A
Class PT2-3A                 (2)                 $     11,455,741.75            Class PT2-IO-3            N/A                 N/A
Class PT2-3B                 (3)                 $     11,455,741.75                 N/A                 N/A                 N/A
Class PT2-4A                 (2)                 $     11,105,282.95           Class PT2-IO-4            N/A                 N/A
Class PT2-4B                 (3)                 $     11,105,282.95                 N/A                 N/A                 N/A
Class PT2-5A                 (2)                 $     10,772,389.63           Class PT2-IO-5             N/A                 N/A
Class PT2-5B                 (3)                 $     10,772,389.63                 N/A                 N/A                 N/A
Class PT2-6A                 (2)                 $     10,455,526.02           Class PT2-IO-6            N/A                 N/A
Class PT2-6B                 (3)                 $     10,455,526.02                 N/A                 N/A                 N/A
Class PT2-7A                 (2)                 $     10,153,207.81           Class PT2-IO-7            N/A                  N/A
Class PT2-7B                 (3)                 $     10,153,207.81                 N/A                 N/A                 N/A
Class PT2-8A                 (2)                 $      9,864,005.48           Class PT2-IO-8            N/A                 N/A
Class PT2-8B                 (3)                 $      9,864,005.48                 N/A                 N/A                 N/A
Class PT2-9A                 (2)                 $      9,586,410.58           Class PT2-IO-9            N/A                 N/A
Class PT2-9B                 (3)                 $      9,586,410.58                 N/A                 N/A                 N/A
Class PT2-10A                (2)                 $      9,318,824.10           Class PT2-IO-10           N/A                 N/A
Class PT2-10B                 (3)                 $      9,318,824.10                 N/A                 N/A                 N/A
Class PT2-11A                (2)                 $      9,060,477.38           Class PT2-IO-11           N/A                 N/A
Class PT2-11B                (3)                 $      9,060,477.38                 N/A                 N/A                 N/A
Class PT2-12A                (2)                 $      8,810,196.82           Class PT2-IO-12           N/A                 N/A
Class PT2-12B                (3)                  $      8,810,196.82                 N/A                 N/A                 N/A
Class PT2-13A                (2)                 $      8,554,540.97           Class PT2-IO-13           N/A                 N/A
Class PT2-13B                (3)                 $      8,554,540.97                 N/A                 N/A                 N/A
Class PT2-14A                (2)                 $      8,202,227.64           Class PT2-IO-14           N/A                 N/A
Class PT2-14B                (3)                 $      8,202,227.64                 N/A                 N/A                 N/A
Class PT2-15A                (2)                 $      7,853,996.37           Class PT2-IO-15           N/A                 N/A
Class PT2-15B                (3)                 $      7,853,996.37                  N/A                 N/A                 N/A
Class PT2-16A                (2)                 $      7,520,664.85           Class PT2-IO-16           N/A                 N/A
Class PT2-16B                (3)                 $      7,520,664.85                  N/A                 N/A                 N/A
Class PT2-17A                (2)                 $      7,201,591.24           Class PT2-IO-17           N/A                 N/A
Class PT2-17B                (3)                 $      7,201,591.24                 N/A                  N/A                 N/A
Class PT2-18A                (2)                 $      6,896,161.46           Class PT2-IO-18           N/A                 N/A
Class PT2-18B                (3)                 $      6,896,161.46                 N/A                  N/A                 N/A
Class PT2-19A                (2)                 $      6,939,739.92           Class PT2-IO-19           N/A                 N/A
Class PT2-19B                (3)                 $      6,939,739.92                 N/A                 N/A                  N/A
Class PT2-20A                (2)                 $      9,224,866.32           Class PT2-IO-20           N/A                 N/A
Class PT2-20B                (3)                 $      9,224,866.32                 N/A                 N/A                 N/A
Class PT2-21A                (2)                 $     21,664,970.13           Class PT2-IO-21           N/A                 N/A
Class PT2-21B                (3)                 $     21,664,970.13                 N/A                 N/A                 N/A
Class PT2-22A                (2)                 $      6,011,549.61           Class PT2-IO-22           N/A                 N/A
Class PT2-22B                (3)                 $      6,011,549.61                 N/A                 N/A                 N/A
Class PT2-23A                 (2)                 $      4,695,573.83           Class PT2-IO-23           N/A                 N/A
Class PT2-23B                (3)                 $      4,695,573.83                 N/A                 N/A                 N/A
Class PT2-24A                 (2)                 $      4,499,109.00           Class PT2-IO-24           N/A                 N/A
Class PT2-24B                (3)                 $      4,499,109.00                 N/A                 N/A                 N/A
Class PT2-25A                (2)                  $      4,651,660.58           Class PT2-IO-25           N/A                 N/A
Class PT2-25B                (3)                 $      4,651,660.58                 N/A                 N/A                 N/A
Class PT2-26A                (2)                  $      7,075,124.46           Class PT2-IO-26           N/A                 N/A
Class PT2-26B                (3)                 $      7,075,124.46                 N/A                 N/A                 N/A
Class PT2-27A                (2)                 $     19,787,361.97           Class PT2-IO-27           N/A                 N/A
Class PT2-27B                (3)                 $     19,787,361.97                 N/A                 N/A                 N/A
Class PT2-28A                (2)                 $      4,014,654.42           Class PT2-IO-28           N/A                 N/A
Class PT2-28B                (3)                 $      4,014,654.42                 N/A                 N/A                 N/A
Class PT2-29A                (2)                 $      2,771,924.51           Class PT2-IO-29           N/A                 N/A
Class PT2-29B                (3)                 $      2,771,924.51                 N/A                 N/A                 N/A
Class PT2-30A                (2)                 $      2,658,668.55           Class PT2-IO-30           N/A                 N/A
Class PT2-30B                (3)                 $      2,658,668.55                 N/A                 N/A                 N/A
Class PT2-31A                (2)                 $      2,754,263.37           Class PT2-IO-31            N/A                 N/A
Class PT2-31B                (3)                 $      2,754,263.37                 N/A                 N/A                 N/A
Class PT2-32A                (2)                 $      4,783,503.16           Class PT2-IO-32           N/A                  N/A
Class PT2-32B                (3)                 $      4,783,503.16                 N/A                 N/A                 N/A
Class PT2-33A                (2)                 $     17,093,435.58           Class PT2-IO-33           N/A                  N/A
Class PT2-33B                (3)                 $     17,093,435.58                 N/A                 N/A                 N/A
Class PT2-34A                (2)                 $      2,314,672.96           Class PT2-IO-34           N/A                 N/A
Class PT2-34B                (3)                 $      2,314,672.96                 N/A                 N/A                 N/A
Class PT2-35A                (2)                 $      1,381,714.99           Class PT2-IO-35           N/A                 N/A
Class PT2-35B                (3)                 $      1,381,714.99                 N/A                 N/A                 N/A
Class PT2-36A                (2)                 $      1,328,519.58           Class PT2-IO-36           N/A                 N/A
Class PT2-36B                 (3)                 $      1,328,519.58                 N/A                 N/A                 N/A
Class PT2-37A                (2)                 $      1,287,283.22           Class PT2-IO-37           N/A                 N/A
Class PT2-37B                (3)                  $      1,287,283.22                 N/A                 N/A                 N/A
Class PT2-38A                (2)                 $      1,894,218.62           Class PT2-IO-38           N/A                 N/A
Class PT2-38B                (3)                  $      1,894,218.62                 N/A                 N/A                 N/A
Class PT2-39A                (2)                 $      6,976,231.74           Class PT2-IO-39           N/A                 N/A
Class PT2-39B                (3)                 $      6,976,231.74                 N/A                 N/A                 N/A
Class PT2-40A                (2)                 $      1,075,398.07           Class PT2-IO-40           N/A                 N/A
Class PT2-40B                (3)                 $      1,075,398.07                 N/A                 N/A                 N/A
Class PT2-41A                (2)                 $        805,507.42           Class PT2-IO-41           N/A                 N/A
Class PT2-41B                (3)                 $        805,507.42                  N/A                 N/A                 N/A
Class PT2-42A                (2)                 $        776,371.02           Class PT2-IO-42           N/A                 N/A
Class PT2-42B                (3)                 $        776,371.02                 N/A                 N/A                 N/A
Class PT2-43A                (2)                 $        753,937.98           Class PT2-IO-43           N/A                 N/A
Class PT2-43B                (3)                 $        753,937.98                 N/A                  N/A                 N/A
Class PT2-44A                (2)                 $      1,101,402.11           Class PT2-IO-44           N/A                 N/A
Class PT2-44B                (3)                 $      1,101,402.11                 N/A                 N/A                 N/A
Class PT2-45A                (2)                 $      3,999,810.80           Class PT2-IO-45           N/A                 N/A
Class PT2-45B                (3)                 $      3,999,810.80                 N/A                 N/A                  N/A
Class PT2-46A                (2)                 $        635,749.77           Class PT2-IO-46           N/A                 N/A
Class PT2-46B                (3)                 $        635,749.77                 N/A                 N/A                 N/A
Class PT2-47A                (2)                 $        482,592.55           Class PT2-IO-47           N/A                 N/A
Class PT2-47B                (3)                 $        482,592.55                 N/A                 N/A                 N/A
Class PT2-48A                (2)                 $        466,528.06           Class PT2-IO-48           N/A                 N/A
Class PT2-48B                (3)                 $        466,528.06                 N/A                 N/A                 N/A
Class PT2-49A                 (2)                 $        450,985.79           Class PT2-IO-49           N/A                 N/A
Class PT2-49B                (3)                 $        450,985.79                 N/A                 N/A                 N/A
Class PT2-50A                (2)                 $        435,949.30           Class PT2-IO-50           N/A                 N/A
Class PT2-50B                (3)                 $        435,949.30                 N/A                 N/A                 N/A
Class PT2-51A                (2)                  $        421,402.65           Class PT2-IO-51           N/A                 N/A
Class PT2-51B                (3)                 $        421,402.65                 N/A                 N/A                 N/A
Class PT2-52A                (2)                 $         407,330.42           Class PT2-IO-52           N/A                 N/A
Class PT2-52B                (3)                 $        407,330.42                 N/A                 N/A                 N/A
Class PT2-53A                (2)                 $        393,717.58           Class PT2-IO-53           N/A                 N/A
Class PT2-53B                (3)                 $        393,717.58                 N/A                 N/A                 N/A
Class PT2-54A                (2)                 $        380,549.62            Class PT2-IO-54           N/A                 N/A
Class PT2-54B                (3)                 $        380,549.62                 N/A                 N/A                 N/A
Class PT2-55A                (2)                 $        379,125.01           Class PT2-IO-55           N/A                 N/A
Class PT2-55B                (3)                 $        379,125.01                 N/A                 N/A                 N/A
Class PT2-56A                (2)                 $        354,991.03           Class PT2-IO-56           N/A                 N/A
Class PT2-56B                (3)                 $        354,991.03                 N/A                 N/A                 N/A
Class PT2-57A                (2)                 $        389,829.34           Class PT2-IO-57           N/A                 N/A
Class PT2-57B                (3)                 $        389,829.34                 N/A                 N/A                 N/A
Class PT2-58A                (2)                 $        376,470.56           Class PT2-IO-58           N/A                  N/A
Class PT2-58B                (3)                 $        376,470.56                 N/A                 N/A                 N/A
Class PT2-59A                (2)                 $        317,065.27           Class PT2-IO-59           N/A                 N/A
Class PT2-59B                (3)                 $        317,065.27                 N/A                 N/A                 N/A
Class PT2-60A                (2)                 $        306,445.27           Class PT2-IO-60           N/A                 N/A
Class PT2-60B                (3)                 $        306,445.27                 N/A                 N/A                 N/A
Class PT2-61A                (2)                 $        307,625.63           Class PT2-IO-61           N/A                 N/A
Class PT2-61B                 (3)                 $        307,625.63                 N/A                 N/A                 N/A
Class PT2-62A                (2)                 $        285,722.36           Class PT2-IO-62           N/A                 N/A
Class PT2-62B                 (3)                 $        285,722.36                 N/A                 N/A                 N/A
Class PT2-63A                (2)                 $        323,370.02           Class PT2-IO-63           N/A                 N/A
Class PT2-63B                (3)                  $        323,370.02                 N/A                 N/A                 N/A
Class PT2-64A                (2)                 $        311,485.85           Class PT2-IO-64           N/A                 N/A
Class PT2-64B                (3)                 $        311,485.85                 N/A                 N/A                 N/A
Class PT2-65A                (2)                 $        253,761.64           Class PT2-IO-65           N/A                 N/A
Class PT2-65B                (3)                 $        253,761.64                 N/A                 N/A                 N/A
Class PT2-66A                (2)                 $        245,273.97           Class PT2-IO-66           N/A                 N/A
Class PT2-66B                (3)                 $        245,273.97                  N/A                 N/A                 N/A
Class PT2-67A                (2)                 $        243,589.38           Class PT2-IO-67           N/A                 N/A
Class PT2-67B                (3)                 $        243,589.38                  N/A                 N/A                 N/A
Class PT2-68A                (2)                 $        228,829.00           Class PT2-IO-68           N/A                 N/A
Class PT2-68B                (3)                 $        228,829.00                 N/A                  N/A                 N/A
Class PT2-69A                (2)                 $        248,050.64           Class PT2-IO-69           N/A                 N/A
Class PT2-69B                (3)                 $        248,050.64                 N/A                  N/A                 N/A
Class PT2-70A                (2)                 $        239,139.60           Class PT2-IO-70           N/A                 N/A
Class PT2-70B                (3)                 $        239,139.60                 N/A                 N/A                  N/A
Class PT2-71A                (2)                 $        204,215.74           Class PT2-IO-71           N/A                 N/A
Class PT2-71B                (3)                 $        204,215.74                 N/A                 N/A                  N/A
Class PT2-72A                (2)                 $        197,381.06           Class PT2-IO-72           N/A                 N/A
Class PT2-72B                (3)                 $        197,381.06                 N/A                 N/A                 N/A
Class PT2-73A                (2)                 $      5,579,149.27           Class PT2-IO-73           N/A                 N/A
Class PT2-73B                (3)                 $      5,579,149.27                 N/A                 N/A                 N/A
Class PT2-IO-2               (4)                                 (4)                N/A             Class PT1-2A         March 2007
Class PT2-IO-3               (4)                                 (4)                N/A             Class PT1-3A         April 2007
Class PT2-IO-4                (4)                                 (4)                N/A             Class PT1-4A          May 2007
Class PT2-IO-5               (4)                                 (4)                N/A             Class PT1-5A         June 2007
Class PT2-IO-6                (4)                                 (4)                N/A             Class PT1-6A         July 2007
Class PT2-IO-7               (4)                                 (4)                N/A             Class PT1-7A        August 2007
Class PT2-IO-8                (4)                                 (4)                N/A             Class PT1-8A       September 2007
Class PT2-IO-9               (4)                                 (4)                N/A             Class PT1-9A        October 2007
Class PT2-IO-10               (4)                                 (4)                N/A            Class PT1-10A       November 2007
Class PT2-IO-11              (4)                                 (4)                N/A            Class PT1-11A       December 2007
Class PT2-IO-12               (4)                                 (4)                N/A            Class PT1-12A        January 2008
Class PT2-IO-13              (4)                                 (4)                N/A            Class PT1-13A       February 2008
Class PT2-IO-14               (4)                                 (4)                N/A            Class PT1-14A         March 2008
Class PT2-IO-15              (4)                                 (4)                N/A            Class PT1-15A         April 2008
Class PT2-IO-16               (4)                                 (4)                N/A            Class PT1-16A          May 2008
Class PT2-IO-17              (4)                                 (4)                N/A            Class PT1-17A         June 2008
Class PT2-IO-18              (4)                                 (4)                N/A            Class PT1-18A         July 2008
Class PT2-IO-19              (4)                                 (4)                N/A            Class PT1-19A        August 2008
Class PT2-IO-20              (4)                                 (4)                N/A            Class PT1-20A       September 2008
Class PT2-IO-21              (4)                                 (4)                N/A            Class PT1-21A        October 2008
Class PT2-IO-22              (4)                                 (4)                N/A            Class PT1-22A       November 2008
Class PT2-IO-23              (4)                                 (4)                N/A            Class PT1-23A       December 2008
Class PT2-IO-24              (4)                                 (4)                N/A            Class PT1-24A        January 2009
Class PT2-IO-25              (4)                                 (4)                N/A            Class PT1-25A       February 2009
Class PT2-IO-26              (4)                                 (4)                N/A            Class PT1-26A         March 2009
Class PT2-IO-27              (4)                                 (4)                N/A            Class PT1-27A         April 2009
Class PT2-IO-28              (4)                                 (4)                N/A            Class PT1-28A          May 2009
Class PT2-IO-29              (4)                                 (4)                N/A            Class PT1-29A         June 2009
Class PT2-IO-30              (4)                                  (4)                N/A            Class PT1-30A         July 2009
Class PT2-IO-31              (4)                                 (4)                N/A            Class PT1-31A        August 2009
Class PT2-IO-32              (4)                                  (4)                N/A            Class PT1-32A       September 2009
Class PT2-IO-33              (4)                                 (4)                N/A            Class PT1-33A        October 2009
Class PT2-IO-34              (4)                                  (4)                N/A            Class PT1-34A       November 2009
Class PT2-IO-35              (4)                                 (4)                N/A            Class PT1-35A       December 2009
Class PT2-IO-36              (4)                                  (4)                N/A            Class PT1-36A        January 2010
Class PT2-IO-37              (4)                                 (4)                N/A            Class PT1-37A       February 2010
Class PT2-IO-38              (4)                                  (4)                N/A            Class PT1-38A         March 2010
Class PT2-IO-39              (4)                                 (4)                N/A            Class PT1-39A         April 2010
Class PT2-IO-40              (4)                                  (4)                N/A            Class PT1-40A          May 2010
Class PT2-IO-41              (4)                                 (4)                N/A            Class PT1-41A         June 2010
Class PT2-IO-42              (4)                                  (4)                N/A            Class PT1-42A         July 2010
Class PT2-IO-43              (4)                                 (4)                N/A            Class PT1-43A        August 2010
Class PT2-IO-44              (4)                                  (4)                N/A            Class PT1-44A       September 2010
Class PT2-IO-45              (4)                                 (4)                N/A            Class PT1-45A        October 2010
Class PT2-IO-46              (4)                                  (4)                N/A            Class PT1-46A       November 2010
Class PT2-IO-47              (4)                                 (4)                N/A            Class PT1-47A       December 2010
Class PT2-IO-48              (4)                                  (4)                N/A            Class PT1-48A        January 2011
Class PT2-IO-49              (4)                                 (4)                N/A            Class PT1-49A       February 2011
Class PT2-IO-50              (4)                                  (4)                N/A            Class PT1-50A         March 2011
Class PT2-IO-51              (4)                                 (4)                N/A            Class PT1-51A         April 2011
Class PT2-IO-52              (4)                                  (4)                N/A            Class PT1-52A          May 2011
Class PT2-IO-53              (4)                                 (4)                N/A            Class PT1-53A         June 2011
Class PT2-IO-54              (4)                                  (4)                N/A            Class PT1-54A         July 2011
Class PT2-IO-55              (4)                                 (4)                N/A            Class PT1-55A        August 2011
Class PT2-IO-56              (4)                                  (4)                N/A            Class PT1-56A       September 2011
Class PT2-IO-57              (4)                                 (4)                N/A            Class PT1-57A        October 2011
Class PT2-IO-58              (4)                                  (4)                N/A            Class PT1-58A       November 2011
Class PT2-IO-59              (4)                                 (4)                N/A            Class PT1-59A       December 2011
Class PT2-IO-60              (4)                                  (4)                N/A            Class PT1-60A        January 2012
Class PT2-IO-61              (4)                                 (4)                N/A            Class PT1-61A       February 2012
Class PT2-IO-62              (4)                                  (4)                N/A            Class PT1-62A         March 2012
Class PT2-IO-63              (4)                                 (4)                N/A            Class PT1-63A         April 2012
Class PT2-IO-64              (4)                                  (4)                N/A            Class PT1-64A          May 2012
Class PT2-IO-65              (4)                                 (4)                N/A            Class PT1-65A         June 2012
Class PT2-IO-66              (4)                                  (4)                N/A            Class PT1-66A         July 2012
Class PT2-IO-67              (4)                                 (4)                N/A            Class PT1-67A        August 2012
Class PT2-IO-68              (4)                                 (4)                N/A            Class PT1-68A       September 2012
Class PT2-IO-69              (4)                                 (4)                N/A            Class PT1-69A        October 2012
Class PT2-IO-70              (4)                                  (4)                N/A            Class PT1-70A       November 2012
Class PT2-IO-71              (4)                                 (4)                N/A            Class PT1-71A       December 2012
Class PT2-IO-72              (4)                                  (4)                N/A            Class PT1-72A        January 2013
Class PT2-IO-73              (4)                                 (4)                N/A            Class PT1-73A       February 2013
Class PT2-R                  (5)                                  (5)                N/A                 N/A                 N/A
                                                                                                              
---------
</TABLE>

(1)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per-annum
     rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the Pooling-Tier
     REMIC-1 WAC Rate.

(2)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per-annum
     rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the weighted
     average of the Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier
     REMIC-1 Regular Interests and having an "A" in their class designation,
     provided that, on each Distribution Date on which interest is distributable
     on the Corresponding Pooling-Tier REMIC-2 IO Interest, this Pooling-Tier
     REMIC-2 Regular Interest shall bear interest at a per-annum rate equal to
     Swap LIBOR subject to a maximum rate equal to the weighted average of the
     Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier REMIC-1 Regular
     Interests and having an "A" in their class designation.

(3)   For any Distribution Date (and the related Interest Accrual Period), this
     Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per-annum
     rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the weighted
     average of the Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier
     REMIC-1 Regular Interests and having a "B" in their class designation.

(4)   Each Pooling-Tier REMIC-2 IO is an interest only interest and does not have
     a principal balance but has a notional balance ("Pooling-Tier REMIC-2 IO
     Notional Balance") equal to the Pooling-Tier REMIC-2 Principal Amount of
     the Corresponding Pooling-Tier REMIC-1 Regular Interest. From the Closing
     Date through and including the Corresponding Actual Crossover Distribution
     Date, this Pooling-Tier REMIC-2 IO Interest shall be entitled to receive
     interest that accrues on the Corresponding Pooling-Tier REMIC-1 Regular
     Interest at a rate equal to the excess, if any, of (i) the Pooling-Tier
     REMIC-1 Interest Rate for the Corresponding Pooling-Tier REMIC-1 Regular
     Interest over (ii) Swap LIBOR. After the Corresponding Actual Crossover
     Distribution Date, this Pooling-Tier REMIC-2 IO Interest shall not accrue
     interest.

(5)   The Class PT2-R Interest shall not have a principal balance and shall not
     bear interest.

            On each Distribution Date, the interest distributable in respect of
the Mortgage Loans for such Distribution Date shall be distributed to the
Pooling-Tier REMIC-2 Regular Interests at the Pooling-Tier REMIC-2 Interest
Rates shown above.

            On each Distribution Date, Realized Losses, Subsequent Recoveries
and payments of principal in respect of the Mortgage Loans (including, for the
first Distribution Date only, the Closing Date Deposit Amount) shall be
allocated to the then outstanding Pooling-Tier REMIC-2 Regular Interests (other
than the Pooling-Tier REMIC-2 IO Interests) with the lowest numerical
denomination until the Pooling-Tier REMIC-2 Principal Amount of such interest is
reduced to zero, provided that, for Pooling-Tier REMIC-2 Regular Interests
Mortgage Loans with the same numerical denomination, such Realized Losses,
Subsequent Recoveries and payments of principal shall be allocated pro rata
between such Pooling-Tier REMIC-2 Regular Interests, until the Pooling-Tier
REMIC-2 Principal Amount of such interests is reduced to zero.

                                Lower-Tier REMIC

            The Lower-Tier REMIC shall issue the following interests, and each
such interest, other than the Class LT-R Interest, is hereby designated as a
regular interest in the Lower-Tier REMIC. The Class LT-R Interest is hereby
designated as the sole class of residual interest in the Lower-Tier REMIC and
shall be represented by the Class R Certificates.

<TABLE>
<CAPTION>
                                                                                Corresponding
                                                                                  Upper-Tier
  Lower-Tier        Lower-Tier             Initial Lower-Tier                      REMIC Regular
REMIC Interest     Interest Rate            Principal Amount                          Interest
--------------     -------------   ------------------------------------------      --------------
<S>                   <C>         <C>                                                   <C>
Class LT-A-1            (1)        1/2 initial Class Certificate Balance of              A-1
                                 Corresponding Upper-Tier Regular Interest
Class LT-A-2            (1)        1/2 initial Class Certificate Balance of              A-2
                                 Corresponding Upper-Tier Regular Interest
Class LT-A-3            (1)        1/2 initial Class Certificate Balance of              A-3
                                 Corresponding Upper-Tier Regular Interest
Class LT-A-4            (1)        1/2 initial Class Certificate Balance of              A-4
                                 Corresponding Upper-Tier Regular Interest
Class LT-M-1            (1)        1/2 initial Class Certificate Balance of              M-1
                                 Corresponding Upper-Tier Regular Interest
Class LT-M-2            (1)        1/2 initial Class Certificate Balance of              M-2
                                 Corresponding Upper-Tier Regular Interest
Class LT-M-3            (1)        1/2 initial Class Certificate Balance of              M-3
                                 Corresponding Upper-Tier Regular Interest
Class LT-M-4             (1)        1/2 initial Class Certificate Balance of              M-4
                                 Corresponding Upper-Tier Regular Interest
Class LT-M-5            (1)        1/2 initial Class Certificate Balance of              M-5
                                  Corresponding Upper-Tier Regular Interest
Class LT-M-6            (1)        1/2 initial Class Certificate Balance of              M-6
                                 Corresponding Upper-Tier Regular Interest
Class LT-B-1            (1)         1/2 initial Class Certificate Balance of              B-1
                                 Corresponding Upper-Tier Regular Interest
Class LT-B-2            (1)        1/2 initial Class Certificate Balance of              B-2
                                  Corresponding Upper-Tier Regular Interest
Class LT-B-3            (1)        1/2 initial Class Certificate Balance of              B-3
                                 Corresponding Upper-Tier Regular Interest
Class LT-Accrual        (1)        1/2 Pool Stated Principal Balance plus 1/2            N/A
                                 Subordinated Amount
Class LT-IO             (2)                            (2)                               N/A
Class LT-R              (3)                            (3)                                N/A
</TABLE>


---------

(1)   The interest rate with respect to any Distribution Date for these interests
     is a per-annum variable rate equal to the weighted average of the
     Pooling-Tier REMIC-2 Interest Rates of the Pooling-Tier REMIC-2 Regular
     Interests (other than the Pooling-Tier REMIC-2 IO Interests).

(2)   This Lower-Tier Regular Interest is an interest only interest and does not
     have a Lower-Tier Principal Amount. On each Distribution Date, this
     Lower-Tier Regular Interest shall be entitled to receive all interest
     distributable on the Pooling-Tier REMIC-2 IO Interests.

(3)   The Class LT-R Interest is the sole class of residual interest in the
     Lower-Tier REMIC and it does not have a principal amount or an interest
     rate.

            Each Lower-Tier Regular Interest is hereby designated as a regular
interest in the Lower-Tier REMIC. The Class LT-A-1, Class LT-A-2, Class LT-A-3,
Class LT-A-4, Class LT-M-1, Class LT-M-2, Class LT-M-3, Class LT-M-4, Class
LT-M-5, Class LT-M-6, Class LT-B-1, Class LT-B-2 and Class LT-B-3 Interests are
hereby designated the LT Accretion Directed Classes (the "LT Accretion Directed
Classes").

            On each Distribution Date, 50% of the increase in the Subordinated
Amount shall be payable as a reduction of the Lower-Tier Principal Amount of the
LT Accretion Directed Classes (each such Class will be reduced by an amount
equal to 50% of any increase in the Subordinated Amount that is attributable to
a reduction in the Class Certificate Balance of its Corresponding Class) and
shall be accrued and added to the Lower-Tier Principal Amount of the Class
LT-Accrual Interest. On each Distribution Date, the increase in the Lower-Tier
Principal Amount of the Class LT-Accrual Interest shall not exceed interest
accruals for such Distribution Date for the Class LT-Accrual Interest. In the
event that: (i) 50% of the increase in the Subordinated Amount exceeds (ii)
interest accruals on the Class LT-Accrual Interest for such Distribution Date,
the excess for such Distribution Date (accumulated with all such excesses for
all prior Distribution Dates) will be added to any increase in the Subordinated
Amount for purposes of determining the amount of interest accrual on the Class
LT-Accrual Interest payable as principal on the LT Accretion Directed Classes on
the next Distribution Date pursuant to the first sentence of this paragraph. All
payments of scheduled principal and prepayments of principal generated by the
Mortgage Loans (including, for the first Distribution Date only, the Closing
Date Deposit Amount) and all Subsequent Recoveries allocable to principal shall
be allocated (i) 50% to the Class LT-Accrual Interest and (ii) 50% to the LT
Accretion Directed Classes (such principal payments and Subsequent Recoveries
shall be allocated among such LT Accretion Directed Classes in an amount equal
to 50% of the principal amounts and Subsequent Recoveries allocated to their
respective Corresponding Classes), until paid in full. Notwithstanding the
above, principal payments allocated to the Class X Interest that result in the
reduction in the Subordinated Amount shall be allocated to the Class LT-Accrual
Interest (until paid in full). Realized Losses shall be applied so that after
all distributions have been made on each Distribution Date (i) the Lower-Tier
Principal Amount of each LT Accretion Directed Class is equal to 50% of the
Class Certificate Balance of its Corresponding Class, and (ii) the Class
LT-Accrual Interest is equal to 50% of the aggregate Stated Principal Balance of
the Mortgage Loans plus 50% of the Subordinated Amount. Any increase in the
Class Certificate Balance of a Class of Offered Certificates as a result of a
Subsequent Recovery shall increase the Lower-Tier Principal Amount of the
Corresponding Lower-Tier Regular Interest by 50% of such increase, and the
remaining 50% of such increase shall increase the Lower-Tier Principal Amount of
the Class LT-Accrual Interest.

                                Upper-Tier REMIC

             The Upper-Tier REMIC shall issue the following interests, and each
such interest, other than the Class UT-R Interest, is hereby designated as a
regular interest in the Upper-Tier REMIC. The Class UT-R Interest is hereby
designated as the sole class of residual interests in the Upper-Tier REMIC and
shall be represented by the Class R Certificates.

  Upper-Tier         Upper-Tier        Initial Principal          Corresponding
REMIC Interest      Interest Rate      Upper-Tier Amount      Class of Certificates
--------------      -------------      -----------------      ---------------------
Class A-1                (1)            $     271,920,000            Class A-1
Class A-2                (1)            $      79,750,000            Class A-2
Class A-3                (1)            $     113,500,000            Class A-3
Class A-4                (1)            $      68,770,000            Class A-4
Class M-1                (1)            $      29,587,000            Class M-1
Class M-2                (1)            $      25,459,000             Class M-2
Class M-3                (1)            $      12,729,000            Class M-3
Class M-4                (1)            $      11,353,000            Class M-4
Class M-5                (1)            $      11,353,000            Class M-5
Class M-6                 (1)            $      10,321,000            Class M-6
Class B-1                (1)            $       9,977,000            Class B-1
Class B-2                (1)            $       8,601,000            Class B-2
Class B-3                (1)            $       7,569,000            Class B-3
Class IO                 (2)                  (2)                      N/A
Class X                  (3)                  (3)                    Class X
Class UT-X               (5)                  (5)                      N/A
Class UT-R               (6)                  (6)                    Class R
                                                         
---------                                               

(1)   For any Distribution Date (and the related Interest Accrual Period) this
     interest shall bear interest at the lesser of (i) the Pass-Through Rate
     (determined without regard to the WAC Cap) for the Corresponding Class of
     Certificates and (ii) the Upper-Tier REMIC WAC Rate.

(2)   This interest is an interest only interest and does not have a principal
     balance. On each Distribution Date, the Class UT-IO Interest shall be
     entitled to receive all interest distributable on the Class LT-IO Interest.
     This interest shall be beneficially owned by the holders of the Class X
     Certificates and shall be held as an asset of the Swap Account.

(3)   The Class UT-X Interest has an initial principal balance of $27,181,577.99
     but will not accrue interest on such balance but will accrue interest on a
     notional principal balance. As of any Distribution Date, the Class UT-X
     Interest shall have a notional principal balance equal to the aggregate of
     the Lower-Tier Principal Amounts of the Lower-Tier Regular Interests (other
     than the Class LT-IO Interest) as of the first day of the related Interest
     Accrual Period. With respect to any Interest Accrual Period, the Class X
     Interest shall bear interest at a rate equal to the excess, if any, of the
     Upper-Tier REMIC WAC Rate over the product of (i) 2 and (ii) the weighted
     average of the Lower-Tier Interest Rates of the Lower-Tier REMIC Interests
     (other than the Class LT-IO Interest), where the Lower-Tier Interest Rate
     on each of the Class LT-Accrual Interest is subject to a cap equal to zero
     and each LT Accretion Directed Class is subject to a cap equal to the
     Upper-Tier Interest Rate on its Corresponding Class of Upper-Tier Regular
     Interest. With respect to any Distribution Date, interest that so accrues
      on the notional principal balance of the Class UT-X Interest shall be
     deferred in an amount equal to any increase in the Subordinated Amount on
     such Distribution Date. Such deferred interest shall not itself bear
     interest.

(4)   The Class UT-R Interest does not have an interest rate or a principal
     balance.

            On each Distribution Date, interest distributable in respect of the
Lower-Tier Interests for such Distribution Date shall be deemed to be
distributed on the interests in the Upper-Tier REMIC at the rates shown above,
provided that the Class IO Interest shall be entitled to receive interest before
any other interest in the Upper-Tier REMIC.

            On each Distribution Date, all Realized Losses, Subsequent
Recoveries and all payments of principal shall be allocated to the Upper-Tier
Interests until the outstanding principal balance of each such interest equals
the outstanding Class Certificate Balance of the Corresponding Class of
Certificates as of such Distribution Date.

                                  Class X REMIC

            The Class X REMIC shall issue the following classes of interests.
The Class X Interest and the Class IO Interest shall each represent a regular
interest in the Class X REMIC and the Class RX Certificates shall represent the
sole class of residual interest in the Class X REMIC.

                                                         Class X REMIC
        Class X REMIC Designation     Interest Rate      Principal Amount
        -------------------------     -------------      ----------------
        Class X Interest                    (1)                  (1)
        Class IO Interest                   (2)                  (2)
        Class RX Certificates               (3)                  (3)

---------

(1)   The Class X Interest has an initial principal balance equal to the initial
     principal balance of the Class UT-X Interest and is entitled to 100% of the
     interest and principal on the Class UT-X Interest on each Distribution
     Date.

(2)   This interest is an interest-only interest and does not have a principal
     balance. On each Distribution Date the Class IO Interest shall be entitled
     to receive 100% of the interest distributable on the Class UT-IO Interest.

(3)   The Class RX Certificates do not have a principal balance or an interest
     rate.

                                The Certificates

                              Class Pass-Through            Class
        Class Designation             Rate             Certificate Balance
        -----------------      ------------------      -------------------
        Class A-1(11)                  (1)              $     271,920,000
        Class A-2(6)                   (1)              $      79,750,000
        Class A-3(6)                    (1)              $     113,500,000
        Class A-4(6)                   (1)              $      68,770,000
        Class M-1(6)                   (2)              $      29,587,000
        Class M-2(6)                   (2)              $      25,459,000
        Class M-3(6)                   (2)              $      12,729,000
        Class M-4(6)                   (2)              $      11,353,000
        Class M-5(6)                   (2)              $      11,353,000
        Class M-6(6)                   (2)               $      10,321,000
        Class B-1(6)                   (2)              $       9,977,000
        Class B-2(6)                   (2)              $       8,601,000
        Class B-3(6)                   (2)              $       7,569,000
        Class X                         (3)              $               0(3)
        Class R                        (4)              $               0(4)
        Class RX                       (5)              $               0(5)
     
---------

(1)   The Class A-1, Class A-2, Class A-3, Class A-4 Interest will bear interest
     during each Interest Accrual Period at a per-annum rate equal to the lesser
     of (i) LIBOR plus the applicable Pass-Through Margin and (ii) the WAC Cap.

(2)   The Class M-1, Class M-2, Class M-3, Class M-4, Class M-5, Class M-6, Class
     B-1, Class B-2 and Class B-3 Certificates will bear interest during each
     Interest Accrual Period at a per annum rate equal to the lesser of (i)
     LIBOR plus the applicable Pass-Through Margin, and (ii) the WAC Cap.

(3)   The Class X Certificates will represent beneficial ownership of the Class X
     Interest, the Class IO Interest, the Interest Rate Swap Agreement, the
     right to receive Class IO Shortfalls and amounts in the Excess Reserve Fund
     Account and the Swap Account, subject to the obligation to make payments
     from the Excess Reserve Fund Account in respect of Basis Risk CarryForward
     Amounts and amounts in the Swap Account subject to the obligation to make
     Net Swap Payments, Swap Termination Payments, Basis Risk CarryForward
     Amounts and, without duplication, Upper-Tier CarryForward Amounts. For
     federal income tax purposes, the Trustee will treat a Class X
     Certificateholder's obligation to make payments from the Excess Reserve
     Fund Account or the Swap Account as payments made under a notional
     principal contract between the Class X Certificateholders and the holder of
     each Class of Offered Certificates. Such rights of the Class X
     Certificateholders and Offered Certificateholders shall be treated as held
     in the Grantor Trust.

(4)   The Class R Certificates do not have an interest rate or a principal
     balance.

(5)   The Class RX Certificates do not have an interest rate or a principal
     balance.

(6)   Each of these Certificates will represent not only the ownership of the
     Corresponding Class of Upper-Tier Regular Interest but also the right to
     receive payments from the Excess Reserve Fund Account and the Swap Account
     in respect of any Basis Risk CarryForward Amounts and, without duplication,
     Upper-Tier CarryForward Amounts. Each of these Certificates will also be
     subject to the obligation to pay Class IO Shortfalls as described in
     Section 8.13. For federal income tax purposes, any amount distributed on
     the Offered Certificates on any such Distribution Date in excess of the
     amount distributable on their Corresponding Class of Upper-Tier Regular
     Interest on such Distribution Date shall be treated as having been paid
     from the Excess Reserve Fund Account or the Swap Account, as applicable,
     and any amount distributable on such Corresponding Class of Upper-Tier
     Regular Interest on such Distribution Date in excess of the amount
     distributable on the Offered Certificates on such Distribution Date shall
     be treated as having been paid to the Swap Account, all pursuant to, and as
     further provided in, Section 8.13. For federal income tax purposes, the
     Trustee will treat an Offered Certificateholder's right to receive payments
     from the Excess Reserve Fund Account or the Swap Account, subject to the
     obligation to pay Class IO Shortfalls, as rights and obligations under a
     notional principal contract between the Class X Certificateholders and the
     Offered Certificateholders.

            The minimum denomination for each Class of Certificates, other than
the Class P, Class R, Class RX and the Class X Certificates, will be $25,000
with integral multiples of $1 in excess thereof. The minimum denomination for
the Class P and the Class X Certificates will each be a 1% Percentage Interest
in such Class. The Class R Certificate and the Class RX Certificate will each
represent a 100% Percentage Interest in the related Class.

             It is expected that each Class of Certificates will receive its
final distribution of principal and interest on or prior to the Final Scheduled
Distribution Date.

            Set forth below are designations of Classes of Certificates to the
categories used herein:

Book-Entry Certificates................   All Classes of Certificates other than
                                         the Physical Certificates.

Class A Certificates...................   Class A-1, Class A-2, Class A-3 and
                                          Class A-4 Certificates.

Class B Certificates...................   Class B-1, Class B-2 and Class B-3
                                         Certificates.

Class M Certificates...................   Class M-1, Class M-2, Class M-3, Class
                                         M-4, Class M-5 and Class M-6
                                         Certificates.

Delay Certificates.....................   None.

ERISA-Restricted Certificates..........   Residual, Class P and Class X
                                          Certificates; any certificate with a
                                         rating below the lowest applicable
                                         permitted rating under the Underwriters
                                          Exemption.

Non-Delay Certificates.................   Class A, Class X and Subordinated
                                         Certificates.

Offered Certificates...................   All Classes of Certificates other than
                                          the Private Certificates.

Physical Certificates..................   Class P, Class X and Residual
                                         Certificates.

Private Certificates...................   Class P, Class X and Residual
                                          Certificates.

Rating Agencies........................   Moody's and Standard & Poor's.

Regular Certificates...................   All Classes of Certificates other than
                                         the Class P and Residual Certificates.

Residual Certificates..................   Class R and Class RX Certificates.

Subordinated Certificates..............   Class M and Class B Certificates.


                                    ARTICLE I

                                    DEFINITIONS

            Whenever used in this Agreement, the following words and phrases,
unless the context otherwise requires, shall have the following meanings:

            Accepted Servicing Practices: With respect to any Mortgage Loan,
those mortgage servicing practices set forth in Section 3.01(a) of this
Agreement.

            Account: Any of the Collection Accounts, the Distribution Account,
any Escrow Account, the Excess Reserve Fund Account or the Swap Account. Each
Account shall be an Eligible Account and shall be non-interest bearing.

            Accredited: Accredited Home Lenders, Inc., a California corporation,
and its successors in interest.

            Accredited Agreements: The Accredited Purchase Agreement and the
Accredited Assignment Agreement, each of which are attached hereto as Exhibit Q.

            Accredited Assignment Agreement: The Assignment and Recognition
Agreement, dated as of the Closing Date, among the Sponsor, the Depositor and
Accredited.

            Accredited Mortgage Loans: The Mortgage Loans purchased by the
Sponsor pursuant to the Accredited Purchase Agreement for which Accredited is
identified as Originator on the Mortgage Loan Schedule.

            Accredited Purchase Agreement: With respect to Accredited Mortgage
Loans purchased by Sponsor prior to August 1, 2006 (as set forth on the Mortgage
Loan Schedule), the Fifth Amended and Restated Mortgage Loan Purchase and
Warranties Agreement, dated as of December 1, 2005, among Accredited and the
Sponsor, and with respect to Accredited Mortgage Loans purchased by Sponsor on
or after August 1, 2006 (as set forth on the Mortgage Loan Schedule), the Eighth
Amended and Restated Mortgage Loan Purchase and Warranties Agreement, dated as
of August 1, 2006, by and between Accredited and the Sponsor.

            Accrued Certificate Interest Distribution Amount: With respect to
any Distribution Date for each Class of Offered Certificates, the amount of
interest accrued during the related Interest Accrual Period at the applicable
Pass-Through Rate on the related Class Certificate Balance immediately prior to
such Distribution Date, as reduced by such Class's share of Net Prepayment
Interest Shortfalls and Relief Act Interest Shortfalls for such Distribution
Date allocated to such Class pursuant to Section 4.02.

            Additional Disclosure Notification: A notification in the form of
Exhibit Z.

            Adjustable Rate Mortgage Loan: An adjustable rate Mortgage Loan.

            Adjusted Net Mortgage Rate: As to each Mortgage Loan and at any
time, the per-annum rate equal to the Mortgage Rate less the Expense Fee Rate.

            Adjustment Date: As to any Adjustable Rate Mortgage Loan, the first
Due Date on which the related Mortgage Rate adjusts as set forth in the related
Mortgage Note and each Due Date thereafter on which the Mortgage Rate adjusts as
set forth in the related Mortgage Note.

            Advance: Any P&I Advance or Servicing Advance.

            Advance Facility: A financing or other facility as described in
Section 10.07.

            Advancing Person: The Person to whom any Servicer's rights under
this Agreement to be reimbursed for any P&I Advances or Servicing Advances have
been assigned pursuant to Section 10.07.

            Affiliate: With respect to any Person, any other Person controlling,
controlled by or under common control with such first Person. For the purposes
of this definition, "control" means the power to direct the management and
policies of such Person, directly or indirectly, whether through the ownership
of voting securities, by contract or otherwise; and the terms "controlling" and
"controlled" have meanings correlative to the foregoing.

            Agent: With respect to the Sponsor, the Depositor or any Affiliate
of either of them, a Person that acts for and on behalf of such Person.

            Agreement: This Pooling and Servicing Agreement and all amendments
or supplements hereto.

            Amount Held for Future Distribution: As to the Certificates on any
Distribution Date, the aggregate amount held in each Collection Account at the
close of business on the related Determination Date on account of (i) Principal
Prepayments, Insurance Proceeds, Condemnation Proceeds and Liquidation Proceeds
on the Mortgage Loans received after the end of the related Prepayment Period
and (ii) all Scheduled Payments on the Mortgage Loans due after the end of the
related Due Period.

            Analytics Company: Intex Solutions, Inc., or any other bond
analytics service provider identified to the Trustee by the Depositor.

            Applied Realized Loss Amount: With respect to any Distribution Date,
the amount, if any, by which the aggregate Class Certificate Balance of the
Offered Certificates after distributions of principal on such Distribution Date
exceeds the aggregate Stated Principal Balance of the Mortgage Loans for such
Distribution Date.

            Appraised Value: The value set forth in an appraisal made in
connection with the origination of the related Mortgage Loan as the value of the
Mortgaged Property.

            Assignment of Mortgage: An assignment of the Mortgage, notice of
transfer or equivalent instrument in recordable form (other than the assignee's
name and recording information not yet returned from the recording office),
reflecting the sale of the Mortgage to the Trustee.

            Available Funds: With respect to any Distribution Date and the
Mortgage Loans to the extent received by the Trustee (x) the sum of (i) all
scheduled installments of interest (net of the related Expense Fees) and
principal due on the Due Date on such Mortgage Loans in the related Due Period
and received by the Servicers on or prior to the related Determination Date,
together with any P&I Advances in respect thereof; (ii) all Condemnation
Proceeds, Insurance Proceeds and Liquidation Proceeds received by the Servicers
during the related Prepayment Period (in each case, net of unreimbursed expenses
incurred in connection with a liquidation or foreclosure and unreimbursed
Advances, if any); (iii) all partial or full prepayments on the Mortgage Loans
received by the Servicers during the related Prepayment Period together with all
Compensating Interest, if applicable, thereon (excluding any Prepayment
Charges); (iv) all Substitution Adjustment Amounts with respect to the
substitutions of Mortgage Loans that occur with respect to such Distribution
Date; (v) amounts received with respect to such Distribution Date as the
Repurchase Price in respect of a Mortgage Loan repurchased with respect to such
Distribution Date; (vi) the proceeds received with respect to the termination of
the Trust Fund pursuant to clause (a) of Section 9.01; and (vii) the Closing
Date Deposit Amount; reduced by (y) amounts in reimbursement for Advances
previously made with respect to the Mortgage Loans and other amounts as to which
the Servicers, the Depositor, the Custodian or the Trustee are entitled to be
paid or reimbursed pursuant to this Agreement.

            Balloon Loan: Any Mortgage Loan that requires only payments of
interest until the stated maturity date of the Mortgage Loan or Scheduled
Payments of principal which (not including the payment due on its stated
maturity date) are based on an amortization schedule that would be insufficient
to fully amortize the principal thereof by the stated maturity date of the
Mortgage Loan.

            Basic Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the Principal Remittance Amount for such
Distribution Date over (ii) the Excess Subordinated Amount, if any, for such
Distribution Date.

            Basis Risk CarryForward Amount: With respect to each Class of
Offered Certificates, as of any Distribution Date, the sum of (A) if on such
Distribution Date the Pass-Through Rate for any Class of Offered Certificates is
based upon the WAC Cap, the excess of (i) the Accrued Certificate Interest
Distribution Amount such Class of Certificates would otherwise be entitled to
receive on such Distribution Date had such Pass-Through Rate not been subject to
the WAC Cap (that is, had such rate been calculated as the sum of LIBOR and the
applicable Pass-Through Margin on such Class of Certificates for such
Distribution Date and the resulting amount being reduced by allocated Net
Prepayment Interest Shortfalls and Relief Act Interest Shortfalls) over (ii) the
Accrued Certificate Interest Distribution Amount received on such Distribution
Date on such Class of Certificates at the WAC Cap for such Distribution Date and
(B) the Basis Risk CarryForward Amount for such Class of Certificates for all
previous Distribution Dates not previously paid, together with interest thereon
at a rate equal to the sum of LIBOR and the applicable Pass-Through Margin for
such Class of Certificates for such Distribution Date.

            Basis Risk Payment: For any Distribution Date, an amount equal to
the lesser of (i) the aggregate of the Basis Risk CarryForward Amounts for such
Distribution Date and (ii) the Class X Distributable Amount (prior to any
reduction for (x) amounts paid from the Excess Reserve Fund Account to pay any
Basis Risk CarryForward Amount or (y) any Defaulted Swap Termination Payment).

            Best's: Best's Key Rating Guide, as the same shall be amended from
time to time.

            Book-Entry Certificates: As specified in the Preliminary Statement.

            Bulk Mortgage Loans: The Mortgage Loans purchased by the Sponsor
pursuant to the Bulk Purchase Agreement for which Meritage is identified as
Originator on the Mortgage Loan Schedule.

            Bulk Purchase Agreement: The Third Amended and Restated Mortgage
Loan Purchase and Warranties Agreement, dated as of February 1, 2006, by and
between Meritage and the Sponsor, solely insofar as such agreement relates to
the Bulk Mortgage Loans.

            Business Day: Any day other than (i) Saturday or Sunday, or (ii) a
day on which banking and savings and loan institutions, in (a) the States of
Arizona, New York, California, Texas, Minnesota, New Jersey, Delaware or Iowa,
(b) a State in which any Servicer's servicing operations are located, or (c) the
State in which the Trustee's operations are located, are authorized or obligated
by law or executive order to be closed.

            Certificate: Any one of the Certificates executed by the Trustee in
substantially the forms attached hereto as exhibits.

            Certificate Balance: With respect to any Class of Certificates,
other than the Class X, Class P, Class R or Class RX Certificates, at any date,
the maximum dollar amount of principal to which the Holder thereof is then
entitled hereunder, such amount being equal to the Denomination thereof minus
all distributions of principal previously made with respect thereto and in the
case of any Certificates, reduced by any Applied Realized Loss Amounts allocated
to such Class of Certificates pursuant to Section 4.05; provided, however, that
immediately following the Distribution Date on which a Subsequent Recovery is
distributed, the Class Certificate Balances of any Class or Classes of
Certificates that have been previously reduced by Applied Realized Loss Amounts
will be increased, in order of seniority, by the amount of the Subsequent
Recovery distributed on such Distribution Date (up to the amount of the Unpaid
Realized Loss Amount for such Class or Classes for such Distribution Date). The
Class X, Class P, Class R and Class RX Certificates have no Certificate Balance.

            Certificate Owner: With respect to a Book-Entry Certificate, the
Person who is the beneficial owner of such Book-Entry Certificate.

            Certificate Register: The register maintained pursuant to Section
5.02.

            Certificateholder or Holder: The Person in whose name a Certificate
is registered in the Certificate Register, except that, solely for the purpose
of giving any consent pursuant to this Agreement, any Certificate registered in
the name of the Sponsor, the Depositor or any Affiliate or Agent of any of them
shall be deemed not to be Outstanding and the Percentage Interest evidenced
thereby shall not be taken into account in determining whether the requisite
amount of Percentage Interests necessary to effect such consent has been
obtained; provided, however, that if the Sponsor (together with its Affiliates
and Agents) or the Depositor (together with its Affiliates and Agents) owns 100%
of the Percentage Interests evidenced by a Class of Certificates, such
Certificates shall be deemed to be Outstanding for purposes of any provision
hereof that requires the consent of the Holders of Certificates of a particular
Class as a condition to the taking of any action hereunder. The Trustee is
entitled to rely conclusively on a certification of the Sponsor, the Depositor
or any such Agent or Affiliate in determining which Certificates are registered
in the name of an Agent or Affiliate of the Sponsor or the Depositor.

            Class: All Certificates bearing the same class designation as set
forth in the Preliminary Statement.

            Class A Certificates: As specified in the Preliminary Statement.

            Class A Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the aggregate Class Certificate Balances of
the Class A Certificates immediately prior to such Distribution Date over (ii)
the lesser of (A) 55.20% of the aggregate Stated Principal Balance of the
Mortgage Loans for such Distribution Date and (B) the excess, if any, of the
aggregate Stated Principal Balance of the Mortgage Loans for such Distribution
Date over $3,440,353.

            Class A-1 Certificates: All Certificates bearing the class
designation of "Class A-1".

            Class A-2 Certificates: All Certificates bearing the class
designation of "Class A-2".

            Class A-3 Certificates: All Certificates bearing the class
designation of "Class A-3".

            Class A-4 Certificates: All Certificates bearing the class
designation of "Class A-4".

            Class B Certificates: As specified in the Preliminary Statement.

            Class B-1 Certificates: All Certificates bearing the class
designation of "Class B-1".

            Class B-1 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date), (F) the Class
Certificate Balance of the Class M-5 Certificates (after taking into account the
distribution of the Class M-5 Principal Distribution Amount for such
Distribution Date), (G) the Class Certificate Balance of the Class M-6
Certificates (after taking into account the distribution of the Class M-6
Principal Distribution Amount for such Distribution Date) and (H) the Class
Certificate Balance of the Class B-1 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) 87.40% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $3,440,353.

            Class B-2 Certificates: All Certificates bearing the class
designation of "Class B-2".

            Class B-2 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date), (F) the Class
Certificate Balance of the Class M-5 Certificates (after taking into account the
distribution of the Class M-5 Principal Distribution Amount for such
Distribution Date), (G) the Class Certificate Balance of the Class M-6
Certificates (after taking into account the distribution of the Class M-6
Principal Distribution Amount for such Distribution Date), (H) the Class
Certificate Balance of the Class B-1 Certificates (after taking into account the
distribution of the Class B-1 Principal Distribution Amount for such
Distribution Date), and (I) the Class Certificate Balance of the Class B-2
Certificates immediately prior to such Distribution Date over (ii) the lesser of
(A) 89.90% of the aggregate Stated Principal Balance of the Mortgage Loans for
such Distribution Date and (B) the excess, if any, of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date over
$3,440,353.

            Class B-3 Certificates: All Certificates bearing the class
designation of "Class B-3".

            Class B-3 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date), (F) the Class
Certificate Balance of the Class M-5 Certificates (after taking into account the
distribution of the Class M-5 Principal Distribution Amount for such
Distribution Date), (G) the Class Certificate Balance of the Class M-6
Certificates (after taking into account the distribution of the Class M-6
Principal Distribution Amount for such Distribution Date), (H) the Class
Certificate Balance of the Class B-1 Certificates (after taking into account the
distribution of the Class B-1 Principal Distribution Amount for such
Distribution Date), (I) the Class Certificate Balance of the Class B-2
Certificates (after taking into account the distribution of the Class B-2
Principal Distribution Amount for such Distribution Date) and (J) the Class
Certificate Balance of the Class B-3 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) 92.10% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $3,440,353.

            Class Certificate Balance: With respect to any Class and as to any
date of determination, the aggregate of the Certificate Balances of all
Certificates of such Class as of such date.

            Class IO Interest: As specified in the Preliminary Statement.

            Class IO Shortfalls: As defined in Section 8.13. For the avoidance
of doubt, the Class IO Shortfall for any Distribution Date shall equal the
amount payable to the Class X Certificates in respect of amounts due to the Swap
Provider on such Distribution Date (other than Defaulted Swap Termination
Payments) in excess of the amount payable on the Class X Interest (prior to any
reduction for Basis Risk Payments or Defaulted Swap Termination Payments) from
Available Funds on such Distribution Date, all as further provided in Section
8.13.

            Class LT-R Interest: The residual interest in the Lower-Tier REMIC
as described in the Preliminary Statement and the related footnote thereto.

            Class M Certificates: As specified in the Preliminary Statement.

            Class M-1 Enhancement Percentage: With respect to any Distribution
Date, the percentage obtained by dividing (x) the sum of (i) the aggregate Class
Certificate Balances of the Class M and Class B Certificates (other than the
Class M-1 Certificates) and (ii) the Subordinated Amount, in each case after
taking into account the distributions of the related Principal Distribution
Amount and any principal payments on those Classes of Certificates from the Swap
Account on that Distribution Date, by (y) the aggregate Stated Principal Balance
of the Mortgage Loans for such Distribution Date.

            Class M-1 Certificates: All Certificates bearing the class
designation of "Class M-1".

             Class M-1 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), and (B) the Class Certificate Balance of the Class M-1 Certificates
immediately prior to such Distribution Date over (ii) the lesser of (A) 63.80%
of the aggregate Stated Principal Balance of the Mortgage Loans for such
Distribution Date and (B) the excess, if any, of the aggregate Stated Principal
Balance of the Mortgage Loans for such Distribution Date over $3,440,353.

            Class M-2 Certificates: All Certificates bearing the class
designation of "Class M-2".

            Class M-2 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date) and (C) the Class Certificate Balance of the
Class M-2 Certificates immediately prior to such Distribution Date over (ii) the
lesser of (A) 71.20% of the aggregate Stated Principal Balance of the Mortgage
Loans for such Distribution Date and (B) the excess, if any, of the aggregate
Stated Principal Balance of the Mortgage Loans for such Distribution Date over
$3,440,353.

            Class M-3 Certificates: All Certificates bearing the class
designation of "Class M-3".

            Class M-3 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date) and (D) the Class
Certificate Balance of the Class M-3 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) 74.90% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $3,440,353.

            Class M-4 Certificates: All Certificates bearing the class
designation of "Class M-4".

            Class M-4 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), and (E) the Class Certificate Balance of the Class M-4
Certificates immediately prior to such Distribution Date over (ii) the lesser of
(A) 78.20% of the aggregate Stated Principal Balance of the Mortgage Loans for
such Distribution Date and (B) the excess, if any, of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date over
$3,440,353.

            Class M-5 Certificates: All Certificates bearing the class
designation of "Class M-5".

            Class M-5 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date) and (F) the Class
Certificate Balance of the Class M-5 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) 81.50% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $3,440,353.

            Class M-6 Certificates: All Certificates bearing the class
designation of "Class M-6".

            Class M-6 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date), (F) the Class
Certificate Balance of the Class M-5 Certificates (after taking into account the
distribution of the Class M-5 Principal Distribution Amount for such
Distribution Date) and (G) the Class Certificate Balance of the Class M-6
Certificates immediately prior to such Distribution Date over (ii) the lesser of
(A) 84.50% of the aggregate Stated Principal Balance of the Mortgage Loans for
such Distribution Date and (B) the excess, if any, of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date over
$3,440,353.

            Class P Certificates: All Certificates bearing the class designation
of "Class P".

            Class PT1-R Interest: The residual interest in Pooling-Tier REMIC-1
as described in the Preliminary Statement and the related footnote thereto.

            Class PT2-R Interest: The residual interest in Pooling-Tier REMIC-2
as described in the Preliminary Statement and the related footnote thereto.

            Class R Certificates: All Certificates bearing the class designation
of "Class R".

            Class RX Certificates: All Certificates bearing the class
designation of "Class RX".

            Class UT-IO Interest: A regular interest in the Upper-Tier REMIC as
described in the Preliminary Statement and the related footnote thereto.

            Class UT-R Interest: The residual interest in the Upper-Tier REMIC
as described in the Preliminary Statement and the related footnote thereto.

            Class UT-X Interest: A regular interest in the Upper-Tier REMIC as
described in the Preliminary Statement and the related footnote thereto.

            Class X Certificates: All Certificates bearing the class designation
of "Class X".

            Class X Distributable Amount: On any Distribution Date, the sum of
(i) as a distribution in respect of interest, the amount of interest that has
accrued on the Class UT-X Interest and not applied as an Extra Principal
Distribution Amount on such Distribution Date, plus any such accrued interest
remaining undistributed from prior Distribution Dates, plus, without
duplication, (ii) as a distribution in respect of principal, any portion of the
principal balance of the Class UT-X Interest which is distributable as a
Subordination Reduction Amount, minus (iii) any amounts paid from the Excess
Reserve Fund Account to pay Basis Risk CarryForward Amounts, and any Defaulted
Swap Termination Payment payable from Available Funds to the Swap Provider.

            Class X Interest: The regular interest in the Class X REMIC
represented by the Class X Certificates as specified and described in the
Preliminary Statement and the related footnote thereto.

            Class X REMIC: As defined in the Preliminary Statement.

            Class X REMIC Regular Interest: Each of the Class X Interest and
Class IO Interest issued by the Class X REMIC.

            Closing Date: February 28, 2007.

            Closing Date Deposit Amount: $789.50 (all of which is allocable to
principal) deposited by the Depositor into the Distribution Account on the
Closing Date.

            Code: The Internal Revenue Code of 1986, including any successor or
amendatory provisions.

            Collection Account: As defined in Section 3.10(a).

            Combined Loan-to-Value Ratio or CLTV: As of any date and as to any
Second-Lien Mortgage Loan, the ratio, expressed as a percentage, of the (a) sum
of (i) the outstanding principal balance of the Second-Lien Mortgage Loan and
(ii) the outstanding principal balance as of such date of any mortgage loan or
mortgage loans that are senior or equal in priority to the Second-Lien Mortgage
Loan and which are secured by the same Mortgaged Property to (b) the Appraised
Value as determined pursuant to the Underwriting Guidelines of the related
Mortgaged Property as of the origination of the Second-Lien Mortgage Loan.

            Commission: The United States Securities and Exchange Commission.

            Compensating Interest: For any Distribution Date and each Servicer,
the lesser of (a) the amount by which the Prepayment Interest Shortfall
resulting from Principal Prepayments in Full exceeds all Prepayment Interest
Excesses for such Distribution Date on the Mortgage Loans serviced by the
applicable Servicer and (b) the amount of the aggregate Servicing Fee paid to or
retained by the applicable Servicer for such Distribution Date.

            Condemnation Proceeds: All awards or settlements in respect of a
Mortgaged Property, whether permanent or temporary, partial or entire, by
exercise of the power of eminent domain or condemnation.

            Convertible Mortgage Loan: Any individual Adjustable Rate Mortgage
Loan which contains a provision whereby the Mortgagor is permitted to convert
the Adjustable Rate Mortgage Loan to a Fixed Rate Mortgage Loan in accordance
with the terms of the related Mortgage Note.

            Corporate Trust Office: The designated office of the Trustee in the
State of California at which at any particular time its corporate trust business
with respect to this Agreement is administered, which office at the date of the
execution of this Agreement is located at 1761 East St. Andrew Place, Santa Ana,
California 92705, Attn: Trust Administration-MS07X1, facsimile no. (714)
247-6285, and which is the address to which notices to and correspondence with
the Trustee should be directed.

            Corresponding Actual Crossover Distribution Date: For each
Pooling-Tier REMIC-2 IO Interest, the related Corresponding Scheduled Crossover
Distribution Date, unless on such date two times the aggregate Pooling-Tier
REMIC-2 IO Notional Balance of each other Pooling-Tier REMIC-2 IO Interest then
outstanding is less than the scheduled swap notional amount (taking into account
the use of the multiplier, if applicable) of the Interest Rate Swap Agreement
applicable for such Distribution Date, in which case the Corresponding Actual
Crossover Distribution Date for such Pooling-Tier REMIC-2 IO Interest shall be
the first Distribution Date thereafter on which two times the aggregate of the
Pooling-Tier REMIC-2 IO Notional Balance of each other Pooling-Tier REMIC-2 IO
Interest then outstanding is greater than or equal to the scheduled swap
notional amount (taking into account the use of the multiplier) of the Interest
Rate Swap Agreement.

            Corresponding Class: The class of interests in the Lower-Tier REMIC
or Upper-Tier REMIC that corresponds to the class of interests in the other such
REMIC or to a Class of Certificates in the manner set out below:

Corresponding Lower-Tier       Corresponding Upper-Tier       Corresponding Class
   Class Designation               Regular Interest            of Certificates
------------------------      ---------------------------    ---------------------
    Class LT-A-1                       Class A-1                  Class A-1
    Class LT-A-2                       Class A-2                  Class A-2
    Class LT-A-3                        Class A-3                  Class A-3
    Class LT-A-4                       Class A-4                  Class A-4
    Class LT-M-1                       Class M-1                  Class M-1
    Class LT-M-2                       Class M-2                   Class M-2
    Class LT-M-3                       Class M-3                  Class M-3
    Class LT-M-4                       Class M-4                  Class M-4
    Class LT-M-5                       Class M-5                  Class M-5
    Class LT-M-6                        Class M-6                  Class M-6
    Class LT-B-1                       Class B-1                  Class B-1
    Class LT-B-2                       Class B-2                  Class B-2
    Class LT-B-3                       Class B-3                   Class B-3
        N/A                            Class X                    Class X

            Corresponding Pooling-Tier REMIC-1 Regular Interest: As described in
the Preliminary Statement.

            Corresponding Pooling-Tier REMIC-2 IO Interest: As described in the
Preliminary Statement.

            Corresponding Scheduled Crossover Distribution Date: The
Distribution Date in the month and year specified in the Preliminary Statement
corresponding to a Pooling-Tier REMIC-2 IO Interest.

             Countrywide Amendment Regulation AB: The Amendment Regulation AB,
dated as of January 26, 2006, by and among Countrywide Servicing, Countrywide
Home Loans, Inc. and the Sponsor, a copy of which is attached hereto as Exhibit
BB.

            Countrywide Serviced Mortgage Loans: The Accredited Mortgage Loans
purchased by the Sponsor pursuant to the Accredited Purchase Agreement for which
Countrywide Servicing is identified as the Servicer on the Mortgage Loan
Schedule.

            Countrywide Servicing: Countrywide Home Loans Servicing LP, a Texas
limited partnership, and its successors in interest.

            Cumulative Loss Percentage: With respect to any Distribution Date,
the percentage equivalent of a fraction, the numerator of which is the aggregate
amount of Realized Losses incurred from the Cut-off Date through the last day of
the related Prepayment Period and the denominator of which is the Cut-off Date
Pool Principal Balance of the Mortgage Loans.

            Cumulative Loss Trigger Event: With respect to any Distribution
Date, a Cumulative Loss Trigger Event exists if the quotient (expressed as a
percentage) of (x) the aggregate amount of Realized Losses incurred since the
Cut-off Date through the last day of the related Prepayment Period divided by
(y) the Cut-off Date Pool Principal Balance exceeds the applicable cumulative
loss percentages set forth below with respect to such Distribution Date:

  Distribution Date Occurring In               Cumulative Loss Percentage
---------------------------------     -------------------------------------------
March   2009 through February 2010     1.550% for the first month, plus an
                                     additional 1/12th of 1.850% for each month
                                     thereafter (e.g., 2.475% in September 2009)

March   2010 through February 2011     3.400% for the first month, plus an
                                     additional 1/12th of 1.900% for each month
                                     thereafter (e.g., 4.350% in September 2010)

March   2011 through February 2012     5.300% for the first month, plus an
                                     additional 1/12th of 1.550% for each month
                                     thereafter (e.g., 6.075% in September 2011)

March   2012 through February 2013     6.850% for the first month, plus an
                                     additional 1/12th of 0.850% for each month
                                     thereafter (e.g., 7.275% in September 2012)

March   2013 through February 2014     7.700% for the first month, plus an
                                     additional 1/12th of 0.050% for each month
                                     thereafter (e.g., 7.725% in September 2013)

March   2014 and thereafter            7.750%

             Custodial File: With respect to each Mortgage Loan, the file
retained by the Trustee consisting - of items (a) - (h) as listed on Exhibit K
hereto.

            Custodian: With respect to the Fremont Mortgage Loans, Wells Fargo.

            Custodian Fee: With respect to each Distribution Date, the aggregate
amount of fees and expenses that the Custodian is entitled to receive, pursuant
to the fee schedule related to the Fremont Mortgage Loans to which the Depositor
and the Custodian have previously agreed, for custodial services rendered with
respect to the Fremont Mortgage Loans, as during the related Due Period. The
Custodian shall inform the Trustee of its Custodian Fee on or prior to the
related Determination Date pursuant to Section 3.07(h).

            Custodian Fee Rate: As to any Distribution Date, the Custodian Fee
for such Distribution Date, converted to a per annum rate on (i) the aggregate
Stated Principal Balance of the Mortgage Loans as of the close of business on
the day immediately preceding the first day of the related Due Period and (ii)
with respect to the Determination Date in March 2007 only, the portion of the
Closing Date Deposit Amount allocable to principal (calculated on an actual/360
basis).

            Custodian's Weighted Average Percentage: As defined in Section
8.14(e).

            Cut-off Date: February 1, 2007.

            Cut-off Date Pool Principal Balance: The aggregate of the Cut-off
Date Principal Balances of all Mortgage Loans, plus the portion of the Closing
Date Deposit Amount allocable to principal.

            Cut-off Date Principal Balance: As to any Mortgage Loan, the Stated
Principal Balance thereof as of the close of business on the Cut-off Date (after
giving effect to payments of principal due on or prior to that date, whether or
not received).

            Data Tape Information: The information provided by the Originators
as of the Cut-off Date to the Depositor or the Sponsor setting forth the
following information with respect to each Mortgage Loan: (1) the Mortgagor's
name; (2) as to each Mortgage Loan, the Scheduled Principal Balance as of the
Cut-off Date; (3) the Mortgage Rate Cap; (4) the Index; (5) a code indicating
whether the Mortgaged Property is owner occupied; (6) the type of Mortgaged
Property; (7) the first date on which the Scheduled Payment was due on the
Mortgage Loan and, if such date is not consistent with the Due Date currently in
effect, such Due Date; (8) the "paid through date" based on payments received
from the related Mortgagor; (9) the original principal amount of the Mortgage
Loan; (10) with respect to Adjustable Rate Mortgage Loans, the Maximum Mortgage
Rate; (11) the type of Mortgage Loan (i.e., Fixed Rate or Adjustable Rate
Mortgage Loan, First-Lien Mortgage Loan or Second-Lien Mortgage Loan); (12) a
code indicating the purpose of the loan (i.e., purchase, rate and term
refinance, equity take out refinance); (13) a code indicating the documentation
style (i.e., full, asset verification, income verification and no
documentation); (14) the credit risk score (FICO score); (15) the loan credit
grade classification (as described in the underwriting guidelines); (16) with
respect to each Adjustable Rate Mortgage Loan, the Minimum Mortgage Rate; (17)
the Mortgage Rate at origination; (18) with respect to each Adjustable Rate
Mortgage Loan, the first Adjustment Date immediately following the Cut-off Date;
(19) the value of the Mortgaged Property; (20) a code indicating the type of
Prepayment Charges applicable to such Mortgage Loan (including any prepayment
penalty term), if any; (21) with respect to each Adjustable Rate Mortgage Loan,
the Periodic Mortgage Rate Cap; (22) the applicable Originator of such Mortgage
Loan; (23) with respect to each First-Lien Mortgage Loan, the LTV at
origination, and with respect to each Second-Lien Mortgage Loan, the CLTV at
origination; and (24) if such Mortgage Loan is covered by a primary mortgage
insurance policy or a lender-paid primary mortgage insurance policy, the primary
mortgage insurance rate. With respect to the Mortgage Loans in the aggregate,
the Data Tape Information shall set forth the following information, as of the
Cut-off Date: (1) the number of Mortgage Loans; (2) the current aggregate
outstanding principal balance of the Mortgage Loans; (3) the weighted average
Mortgage Rate of the Mortgage Loans; and (4) the weighted average maturity of
the Mortgage Loans.

            Debt Service Reduction: With respect to any Mortgage Loan, a
reduction by a court of competent jurisdiction in a proceeding under the United
States Bankruptcy Code in the Scheduled Payment for such Mortgage Loan which
became final and non-appealable, except such a reduction resulting from a
Deficient Valuation or any reduction that results in a permanent forgiveness of
principal.

            Defaulted Swap Termination Payment: Any Swap Termination Payment
required to be paid by the Trust to the Swap Provider pursuant to the Interest
Rate Swap Agreement as a result of an Event of Default (as defined in the
Interest Rate Swap Agreement) with respect to which the Swap Provider is the
Defaulting Party (as defined in the Interest Rate Swap Agreement) or a
Termination Event (as defined in the Interest Rate Swap Agreement) (other than
Illegality or a Tax Event that is not a Tax Event Upon Merger (each as defined
in the Interest Rate Swap Agreement )) with respect to which the Swap Provider
is the sole Affected Party (as defined in the Interest Rate Swap Agreement).

            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 United States
Bankruptcy Code.

            Definitive Certificates: Any Certificate evidenced by a Physical
Certificate and any Certificate issued in lieu of a Book-Entry Certificate
pursuant to Section 5.02(e).

            Delay Certificates: As specified in the Preliminary Statement.

            Deleted Mortgage Loan: As defined in Section 2.03.

            Delinquency Loss Trigger Event: With respect to any Distribution
Date, the circumstances in which the quotient (expressed as a percentage) of (x)
the rolling three month average of the aggregate unpaid principal balance of 60+
Day Delinquent Mortgage Loans (including Mortgage Loans in foreclosure and
Mortgage Loans related to REO Property) and (y) (1) until the aggregate Class
Certificate Balance of the Class A Certificates have been reduced to zero, the
aggregate unpaid principal balance of the Mortgage Loans for such Distribution
Date equals or exceeds 35.71% of the prior period's Senior Enhancement
Percentage and (2) after the aggregate Class Certificate Balance of the Class A
Certificates have been reduced to zero, the aggregate unpaid principal balance
of the Mortgage Loans for such Distribution Date equals or exceeds 44.19% of the
prior period's Class M-1 Enhancement Percentage.

            Denomination: With respect to each Certificate, the amount set forth
on the face thereof as the "Initial Certificate Balance of this Certificate" or
the Percentage Interest appearing on the face thereof.

            Depositor: Morgan Stanley ABS Capital I Inc., a Delaware
corporation, and its successors in interest.

            Depository: The initial Depository shall be The Depository Trust
Company, the nominee of which is CEDE & Co., as the registered Holder of the
Book-Entry Certificates. The Depository shall at all times be a "clearing
corporation" as defined in Section 8 102(a)(5) of the Uniform Commercial Code of
the State of New York.

            Depository Institution: Any depository institution or trust company,
including the Trustee, that (a) is incorporated under the laws of the United
States of America or any State thereof, (b) is subject to supervision and
examination by federal or state banking authorities and (c) has outstanding
unsecured commercial paper or other short-term unsecured debt obligations that
are rated "P-1" by Moody's, "F1+" by Fitch and "A-1" by Standard & Poor's (to
the extent they are Rating Agencies hereunder).

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

            Determination Date: With respect to each Distribution Date, the 18th
day (or if such day is not a Business Day, the immediately preceding Business
Day) in the case of Wells Fargo and Countrywide Servicing, and the 15th day (or
if such day is not a Business Day, the immediately preceding Business Day) in
the case of Saxon, of the calendar month in which such Distribution Date occurs.

            Distribution Account: The separate Eligible Account created and
maintained by the Trustee pursuant to Section 3.07(d) in the name of the Trustee
for the benefit of the Certificateholders and designated "Deutsche Bank National
Trust Company in trust for registered Holders of Morgan Stanley Home Equity Loan
Trust 2007-1 Mortgage Pass-Through Certificates, Series 2007-1." Funds in the
Distribution Account shall be held in trust for the Certificateholders for the
uses and purposes set forth in this Agreement.

             Distribution Account Deposit Date: As to any Distribution Date,
12:00 noon New York City time on the second Business Day immediately preceding
such Distribution Date.

            Distribution Date: The 25th day of each calendar month, or if such
day is not a Business Day, the next succeeding Business Day, commencing in March
2007.

            Document Certification and Exception Report: The report attached to
Exhibit F hereto.

            Due Date: The day of the month on which the Scheduled Payment is due
on a Mortgage Loan, exclusive of any days of grace.

            Due Period: With respect to any Distribution Date, the period
commencing on the second day of the calendar month preceding the month in which
such Distribution Date occurs and ending on the first day of the calendar month
in which such Distribution Date occurs.

            Eligible Account: Either (i) an account maintained with a federal or
state chartered depository institution or trust company that complies with the
definition of Eligible Institution, (ii) an account maintained with the
corporate trust department of a federal depository institution or state
chartered depository institution subject to regulations regarding fiduciary
funds on deposit similar to Title 12 of the U.S. Code of Federal Regulation
Section 9.10(b), which, in either case, has corporate trust powers and is acting
in its fiduciary capacity or (iii) any other account acceptable to each Rating
Agency. Eligible Accounts may bear interest, and may include, if otherwise
qualified under this definition, accounts maintained with the Trustee. Each
Eligible Account shall be a separate account.

            Eligible Institution: A federal or state chartered depository
institution or trust company the commercial paper, short-term debt obligations,
or other short-term deposits of which are rated "A-1+" by Standard & Poor's if
the amounts on deposit are to be held in the account for no more than 365 days
(or at least "A-2" by Standard & Poor's if the amounts on deposit are to be held
in the account for no more than 30-days), or the long-term unsecured debt
obligations of which are rated at least "AA-" by Standard & Poor's if the
amounts on deposit are to be held in the account for no more than 365 days, and
the commercial paper, short-term debt obligations or other short-term deposits
of which are rated at least "P-1" by Moody's and "F1+" by Fitch (or a comparable
rating if another Rating Agency is specified by the Depositor by written notice
to the Servicers and the Trustee) (in each case, to the extent they are
designated as Rating Agencies in the Preliminary Statement).

            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 meets the requirements of Prohibited
Transaction Exemption ("PTE") 2002-41, 67 Fed. Reg. 54487 (2002) (or any
successor thereto), or any substantially similar administrative exemption
granted by the U.S. Department of Labor.

            ERISA-Restricted Certificate: As specified in the Preliminary
Statement.

            Escrow Account: The Eligible Account or Accounts established and
maintained pursuant to Section 3.09(b).

            Escrow Payments: As defined in Section 3.09(b).

            Event of Default: As defined in Section 7.01.

            Excess Reserve Fund Account: The separate Eligible Account created
and maintained by the Trustee pursuant to Sections 3.07(b) and 3.07(c) in the
name of the Trustee for the benefit of the Regular Certificateholders and
designated "Deutsche Bank National Trust Company in trust for registered Holders
of Morgan Stanley Home Equity Loan Trust 2007-1, Mortgage Pass-Through
Certificates, Series 2007-1." Funds in the Excess Reserve Fund Account shall be
held in trust for the Regular Certificateholders for the uses and purposes set
forth in this Agreement. Amounts on deposit in the Excess Reserve Fund Account
shall not be invested.

            Excess Subordinated Amount: With respect to any Distribution Date,
the excess, if any, of (a) the Subordinated Amount on such Distribution Date
over (b) the Specified Subordinated Amount for such Distribution Date.

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

            Expense Fee Rate: As to each Mortgage Loan, a per-annum rate equal
to the sum of the Servicing Fee Rate, the Trustee Fee Rate and the Custodian Fee
Rate.

            Expense Fees: As to each Mortgage Loan, the sum of the Servicing
Fee, the Trustee Fee, the Custodian Fee and any lender-paid primary mortgage
insurance fee, if applicable.

            Extra Principal Distribution Amount: As of any Distribution Date,
the lesser of (x) the related Total Monthly Excess Spread for such Distribution
Date and (y) the related Subordination Deficiency for such Distribution Date.

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

            Fannie Mae Guides: The Fannie Mae Sellers' Guide and the Fannie Mae
Servicers' Guide and all amendments or additions thereto.

            FDIC: The Federal Deposit Insurance Corporation, or any successor
thereto.

            Final Recovery Determination: With respect to any defaulted Mortgage
Loan or any REO Property (other than any Mortgage Loan or REO Property purchased
by the applicable Originator or the Depositor, as applicable, as contemplated by
this Agreement, the Accredited Agreements, the Fremont Agreements, the Bulk
Purchase Agreement or the Wilmington Agreements, as applicable), a determination
made by the applicable Servicer that all Insurance Proceeds, Condemnation
Proceeds, Liquidation Proceeds and other payments or recoveries which the
applicable Servicer, in its reasonable good faith judgment, expects to be
finally recoverable in respect thereof have been so recovered. Each Servicer
shall maintain records, prepared by a Servicing Officer, of each Final Recovery
Determination made thereby.

            Final Scheduled Distribution Date: The Final Scheduled Distribution
Date for each Class of Certificates is the Distribution Date in December 2036.

            First-Lien Mortgage Loan: A Mortgage Loan secured by a first lien
Mortgage on the related Mortgaged Property.

            First NLC: First NLC Financial Services, LLC, a Florida limited
liability company, and its successors in interest.

            First NLC Mortgage Loans: The Mortgage Loans purchased by the
Sponsor pursuant to the First NLC Purchase Agreement for which First NLC is
identified as Originator on the Mortgage Loan Schedule.

            First NLC Purchase Agreement: The Second Amended and Restated
Mortgage Loan Purchase and Warranties Agreement, dated as of March 1, 2006, by
and between First NLC and the Sponsor, which is attached hereto as Exhibit O.

            Fitch: Fitch, Inc., and its successors in interest. If Fitch is
designated as a Rating Agency in the Preliminary Statement, for purposes of
Section 10.05(b) the address for notices to Fitch shall be Fitch, Inc., One
State Street Plaza, New York, New York 10004, Attention: MBS Monitoring - Morgan
Stanley Home Equity Loan Trust 2007-1, or such other address as Fitch may
hereafter furnish to the Depositor, the Trustee and the Servicers.

            Fixed Rate Mortgage Loan: A fixed rate Mortgage Loan.

            Freddie Mac: The Federal Home Loan Mortgage Corporation, a corporate
instrumentality of the United States created and existing under Title III of the
Emergency Home Finance Act of 1970, as amended, or any successor thereto.

            Fremont: Fremont Investment & Loan, a California industrial bank,
and its successors in interest.

            Fremont Agreements: The Fremont Purchase Agreement, the Fremont
Interim Servicing Agreement and the Fremont Assignment Agreement, each of which
are attached hereto as Exhibit S.

            Fremont Assignment Agreement: The Assignment, Assumption and
Recognition Agreement, dated as of the Closing Date, among the Sponsor, the
Depositor and Fremont.

            Fremont Interim Servicing Agreement: The Second Amended and Restated
Interim Servicing Agreement, dated as of November 1, 2006 between the Sponsor
and Fremont.

            Fremont Mortgage Loans: The Mortgage Loans purchased by the Sponsor
pursuant to the Fremont Purchase Agreement for which Fremont is identified as
Originator on the Mortgage Loan Schedule.

            Fremont Purchase Agreement: The Second Amended and Restated Mortgage
Loan Purchase and Warranties Agreement, dated as of November 1, 2006, by and
between Fremont and the Sponsor, solely insofar as such agreement relates to the
Fremont Mortgage Loans.

            Grantor Trust: As described in the Preliminary Statement.

            Gross Margin: With respect to each Adjustable Rate Mortgage Loan,
the fixed percentage amount set forth in the related Mortgage Note to be added
to the applicable Index to determine the Mortgage Rate.

            Index: As to each Adjustable Rate Mortgage Loan, the index from time
to time in effect for the adjustment of the Mortgage Rate set forth as such on
the related Mortgage Note.

            Insurance Policy: With respect to any Mortgage Loan included in the
Trust Fund, any insurance policy, including all riders and endorsements thereto
in effect, including any replacement policy or policies for any Insurance
Policies.

            Insurance Proceeds: With respect to each Mortgage Loan, proceeds of
insurance policies insuring the Mortgage Loan or the related Mortgaged Property.

            Interest Accrual Period: With respect to each Class of Non-Delay
Certificates and the Corresponding Class of Lower-Tier Regular Interests and any
Distribution Date, the period commencing on the Distribution Date occurring in
the month preceding the month in which the current Distribution Date occurs (or,
in the case of the first Distribution Date, the period from and including the
Closing Date to but excluding such first Distribution Date) and ending on the
day immediately preceding the current Distribution Date. With respect to the
Class LT-Accrual, Class LT-IO, Class UT-X, Class UT-IO, Class X and Class IO
Interests and each Pooling-Tier REMIC-1 Regular Interest and Pooling-Tier
REMIC-2 Regular Interest and any Distribution Date, the calendar month preceding
such Distribution Date. For purposes of computing interest accruals on each
Class of Non-Delay Certificates, each Interest Accrual Period has the actual
number of days in such month and each year is assumed to have 360 days.

            Interest Rate Adjustment Date: With respect to each Adjustable Rate
Mortgage Loan, the date, specified in the related Mortgage Note and the Mortgage
Loan Schedule, on which the Mortgage Rate is adjusted.

            Interest Rate Swap Agreement: The interest rate swap agreement,
dated as of the Closing Date, between the Swap Provider and the Trustee, a copy
of which is attached hereto as Exhibit Y.

            Interest Remittance Amount: With respect to any Distribution Date
and the Mortgage Loans, that portion of Available Funds attributable to interest
received or advanced on such Mortgage Loans, net of the fees payable to the
Servicers, the Custodian and the Trustee, and net of any Net Swap Payments and
any Swap Termination Payments, other than Defaulted Swap Termination Payments,
payable to the Swap Provider from Available Funds with respect to that
Distribution Date.

            Investment Account: As defined in Section 3.12(a).

            Investor: With respect to each MERS Designated Mortgage Loan, the
Person named on the MERS(R) System as the investor pursuant to the MERS
Procedures Manual.

            Investor-Based Exemption: Any of Prohibited Transaction Class
Exemption ("PTCE") 84-14 (for transactions by independent "qualified
professional asset managers"), PTCE 90 1 (for transactions by insurance company
pooled separate accounts), PTCE 91-38 (for transactions by bank collective
investment funds), PTCE 95-60 (for transactions by insurance company general
accounts) or PTCE 96-23 (for transactions effected by "in house asset
managers"), or any comparable exemption available under Similar Law.

            Late Collections: With respect to any Mortgage Loan and any Due
Period, all amounts received after the Determination Date immediately following
such Due Period, whether as late payments of Scheduled Payments or as Insurance
Proceeds, Condemnation Proceeds, Liquidation Proceeds or otherwise, which
represent late payments or collections of principal and/or interest due (without
regard to any acceleration of payments under the related Mortgage and Mortgage
Note) but delinquent for such Due Period and not previously recovered.

            LIBOR: With respect to any Interest Accrual Period for the Offered
Certificates, the rate determined by the Trustee on the related LIBOR
Determination Date on the basis of the offered rate for one-month U.S. dollar
deposits as such rate appears on Reuters Page LIBOR01 as of 11:00 a.m. (London
time) on such date; provided that if such rate does not appear on Reuters Page
LIBOR01, the rate for such date will be determined on the basis of the rates at
which one-month U.S. dollar deposits are offered by the Reference Banks at
approximately 11:00 a.m. (London time) on such date to prime banks in the London
interbank market. In such event, the Trustee shall request the principal London
office of each of the Reference Banks to provide a quotation of its rate. If at
least two such quotations are provided, the rate for that date will be the
arithmetic mean of the quotations (rounded upwards if necessary to the nearest
whole multiple of 1/16%). If fewer than two quotations are provided as
requested, the rate for that date will be the arithmetic mean of the rates
quoted by major banks in New York City, selected by the Trustee (after
consultation with the Depositor), at approximately 11:00 a.m. (New York City
time) on such date for one-month U.S. dollar loans to leading European banks.

            LIBOR Determination Date: With respect to any Interest Accrual
Period for the Offered Certificates, the second London Business Day preceding
the commencement of such Interest Accrual Period.

            Liquidated Mortgage Loan: With respect to any Distribution Date, a
defaulted Mortgage Loan (including any REO Property) which either (a) was
liquidated in the calendar month preceding the month of such Distribution Date
and as to which the applicable Servicer has certified to the Trustee that it has
received all amounts it expects to receive in connection with the liquidation of
such Mortgage Loan including the final disposition of an REO Property, or (b) is
a Second-Lien Mortgage Loan (1) that is delinquent 180 days or longer, (2) for
which the related first lien mortgage loan is not a Mortgage Loan, and (3) as to
which the applicable Servicer has certified to the Trustee that it does not
believe there is a reasonable likelihood that any further net proceeds will be
received or recovered with respect to such Second-Lien Mortgage Loan.

            Liquidation Proceeds: Cash received in connection with the
liquidation of a Liquidated Mortgage Loan, whether through a trustee's sale,
foreclosure sale or otherwise, including any Subsequent Recoveries.

            Loan-to-Value Ratio or LTV: With respect to any First-Lien Mortgage
Loan, the ratio (expressed as a percentage) of the original outstanding
principal amount of the First-Lien Mortgage Loan as of the Cut-off Date (unless
otherwise indicated), to the lesser of (a) the Appraised Value of the Mortgaged
Property at origination, and (b) if the First-Lien Mortgage Loan was made to
finance the acquisition of the related Mortgaged Property, the purchase price of
the Mortgaged Property.

            London Business Day: Any day on which dealings in deposits of United
States dollars are transacted in the London interbank market.

            Lower-Tier Interest Rate: As described in the Preliminary Statement.

            Lower-Tier Principal Amount: As described in the Preliminary
Statement.

            Lower-Tier Regular Interest: Each of the Class LT-A-1, Class LT-A-2,
Class LT-A-3, Class LT-A-4, Class LT-M-1, Class LT-M-2, Class LT-M-3, Class
LT-M-4, Class LT-M-5, Class LT-M-6, Class LT-B-1, Class LT-B-2, Class LT-B-3,
Class LT-IO and Class LT-Accrual Interests as described in the Preliminary
Statement.

            Lower-Tier REMIC: As described in the Preliminary Statement.

            Maximum Mortgage Rate: With respect to each Adjustable Rate Mortgage
Loan, a rate that (i) is set forth on the Data Tape Information and in the
related Mortgage Note and (ii) is the maximum interest rate to which the
Mortgage Rate on such Adjustable Rate Mortgage Loan may be increased during the
lifetime of such Adjustable Rate Mortgage Loan.

            Meritage: Meritage Mortgage Corporation, a Florida corporation, and
its successors in interest.

            MERS: Mortgage Electronic Registration System, Inc.

            MERS Designated Mortgage Loan: Mortgage Loans for which (a) the
Originators have designated or will designate MERS as, and have taken or will
take such action as is necessary to cause MERS to be, the mortgagee of record,
as nominee for the Originators, in accordance with MERS Procedure Manual and (b)
the Originators have designated or will designate the Trustee as the Investor on
the MERS(R) System.

            MERS Procedures Manual: The MERS Procedures Manual, as it may be
amended, supplemented or otherwise modified from time to time.

            MERS(R) System: MERS mortgage electronic registry system, as more
particularly described in the MERS Procedures Manual.

            Minimum Mortgage Rate: With respect to each Adjustable Rate Mortgage
Loan, a rate that (i) is set forth on the Data Tape Information and in the
related Mortgage Note and (ii) is the minimum interest rate to which the
Mortgage Rate on such Adjustable Rate Mortgage Loan may be decreased during the
lifetime of such Adjustable Rate Mortgage Loan.

            Monthly Statement: The statement delivered to the Certificateholders
pursuant to Section 4.03.

            Moody's: Moody's Investors Service, Inc., and its successors in
interest. If Moody's is designated as a Rating Agency in the Preliminary
Statement, for purposes of Section 10.05(b), the address for notices to Moody's
shall be Moody's Investors Service, Inc., 99 Church Street, New York, New York
10007, Attention: Residential Mortgage Pass-Through Group, or such other address
as Moody's may hereafter furnish to the Depositor, the Trustee and the
Servicers.

            Morgan Stanley: Morgan Stanley, a Delaware corporation.

            Mortgage: The mortgage, deed of trust or other instrument identified
on the Mortgage Loan Schedule as securing a Mortgage Note.

            Mortgage File: The items pertaining to a particular Mortgage Loan
contained in either the Servicing File or Custodial File.

            Mortgage Loan: An individual Mortgage Loan which is the subject of
this Agreement, each Mortgage Loan originally sold and subject to this Agreement
being identified on the Mortgage Loan Schedule, which Mortgage Loan includes,
without limitation, the Mortgage File, the Scheduled Payments, Principal
Prepayments, Liquidation Proceeds, Condemnation Proceeds, Insurance Proceeds,
REO Disposition proceeds, Prepayment Charges, and all other rights, benefits,
proceeds and obligations arising from or in connection with such Mortgage Loan,
excluding replaced or repurchased Mortgage Loans.

            Mortgage Loan Schedule: A schedule of Mortgage Loans delivered to
the Trustee and the Custodian and referred to on Schedule I, such schedule
setting forth the following information with respect to each Mortgage Loan: (1)
the Mortgage Loan number; (2) the city, state and zip code of the Mortgaged
Property; (3) the number and type of residential units constituting the
Mortgaged Property; (4) the current Mortgage Rate; (5) the current net Mortgage
Rate; (6) the current Scheduled Payment; (7) with respect to each Adjustable
Rate Mortgage Loan, the Gross Margin; (8) the original term to maturity; (9) the
scheduled maturity date; (10) the principal balance of the Mortgage Loan as of
the Cut-off Date after deduction of payments of principal due on or before the
Cut-off Date whether or not collected; (11) with respect to each Adjustable Rate
Mortgage Loan, the next Interest Rate Adjustment Date; (12) with respect to each
Adjustable Rate Mortgage Loan, the lifetime Mortgage Interest Rate Cap; (13)
whether the Mortgage Loan is convertible or not; (14) the Servicing Fee; (15)
the applicable Originator's name; (16) the date such Mortgage Loan was sold by
the applicable Originator to the Sponsor; (17) whether such Mortgage Loan
provides for a Prepayment Charge as well as the term and amount of such
Prepayment Charge, if any; (18) with respect to each First-Lien Mortgage Loan,
the LTV at origination, and with respect to each Second-Lien Mortgage Loan, the
CLTV at origination; (19) the applicable Servicer's name; and (20) the date on
which servicing of the Mortgage Loan was transferred to the applicable Servicer.

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

            Mortgage Rate: The annual rate of interest borne on a Mortgage Note,
which shall be adjusted from time to time in the case of an Adjustable Rate
Mortgage Loan.

            Mortgage Rate Caps: With respect to an Adjustable Rate Mortgage
Loan, the Periodic Mortgage Rate Cap, the Maximum Mortgage Rate, and the Minimum
Mortgage Rate for such Mortgage Loan.

            Mortgaged Property: With respect to each Mortgage Loan, the real
property (or leasehold estate, if applicable) identified on the Mortgage Loan
Schedule as securing repayment of the debt evidenced by the related Mortgage
Note.

            Mortgagor: The obligor(s) on a Mortgage Note.

            Net Monthly Excess Cash Flow: For any Distribution Date the portion
of Available Funds remaining for distribution pursuant to subsection
4.02(a)(iii) (before giving effect to distributions pursuant to such
subsection).

            Net Prepayment Interest Shortfall: For any Distribution Date, the
amount by which the sum of the Prepayment Interest Shortfalls for such
Distribution Date exceeds the sum of (i) all Prepayment Interest Excesses for
such Distribution Date and (ii) Compensating Interest payments made with respect
to such Distribution Date.

            Net Swap Payment: With respect to any Distribution Date, any net
payment (other than a Swap Termination Payment) payable by the Trust to the Swap
Provider on the related Fixed Rate Payer Payment Date (as defined in the
Interest Rate Swap Agreement).

            Net Swap Receipt: With respect to any Distribution Date, any net
payment (other than a Swap Termination Payment) made by the Swap Provider to the
Trust on the related Floating Rate Payer Payment Date (as defined in the
Interest Rate Swap Agreement).

             NIM Issuer: The entity established as the issuer of the NIM
Securities.

            NIM Securities: Any debt securities secured or otherwise backed by
some or all of the Class X and Class P Certificates that are rated by one or
more Rating Agencies.

             NIM Trustee: The trustee for the NIM Securities.

            90+ Day Delinquent Mortgage Loan: (i) Each Mortgage Loan with
respect to which any portion of a Schedule Payment is, as of the last day of the
prior Due Period, three months or more delinquent, including, without
limitation, such Mortgage Loans that are subject to bankruptcy proceedings, and
(ii) each REO Property.

            Non-Delay Certificates: As specified in the Preliminary Statement.

            Non-Permitted Transferee: A Person other than a Permitted
Transferee.

            Nonrecoverable P&I Advance: Any P&I Advance previously made or
proposed to be made in respect of a Mortgage Loan or REO Property that, in the
good faith business judgment of the applicable Servicer, will not or, in the
case of a proposed P&I Advance, would not be ultimately recoverable from related
late payments, Insurance Proceeds, Condemnation Proceeds, or Liquidation
Proceeds on such Mortgage Loan or REO Property as provided herein.

            Nonrecoverable Servicing Advance: Any Servicing Advances previously
made or proposed to be made in respect of a Mortgage Loan or REO Property,
which, in accordance with Accepted Servicing Practices, will not or, in the case
of a proposed Servicing Advance, would not be ultimately recoverable from
related Insurance Proceeds, Condemnation Proceeds, Liquidation Proceeds or
otherwise.

            Notice of Final Distribution: The notice to be provided pursuant to
Section 9.02 to the effect that final distribution on any of the Certificates
shall be made only upon presentation and surrender thereof.

            Offered Certificates: As specified in the Preliminary Statement.

            Officer's Certificate: A certificate signed by an officer of any
Servicer or Subservicer with responsibility for the servicing of the Mortgage
Loans required to be serviced by such Servicer or Subservicer and listed on a
list delivered to the Trustee pursuant to this Agreement.

            Opinion of Counsel: A written opinion of counsel, who may be
in-house counsel for a Servicer or a Subservicer, reasonably acceptable to the
Trustee (and/or such other Persons as may be set forth herein), provided that
any Opinion of Counsel relating to (a) qualification of any Trust REMIC or (b)
compliance with the REMIC Provisions, must be (unless otherwise stated in such
Opinion of Counsel) an opinion of counsel who (i) is in fact independent of such
Servicer of the Mortgage Loans, (ii) does not have any material direct or
indirect financial interest in such Servicer of the Mortgage Loans or in an
Affiliate thereof and (iii) is not connected with such Servicer of the Mortgage
Loans as an officer, employee, director or person performing similar functions.

            Optional Termination Date: The Distribution Date on which the
aggregate Stated Principal Balance of the Mortgage Loans, as of the last day of
the related Due Period, is equal to 10% or less of the Cut-off Date Pool
Principal Balance.

            Originators: The Responsible Party, Accredited, Wilmington, Fremont
and Meritage.

            OTS: Office of Thrift Supervision, and any successor thereto.

            Outstanding: With respect to the Certificates as of any date of
determination, all Certificates theretofore executed and authenticated under
this Agreement except:

            (i) Certificates theretofore canceled by the Trustee or delivered to
      the Trustee for cancellation; and

            (ii) Certificates in exchange for which or in lieu of which other
      Certificates have been executed and delivered by the Trustee pursuant to
      this Agreement.

            Outstanding Mortgage Loan: As of any Due Date, a Mortgage Loan with
a Stated Principal Balance greater than zero which was not the subject of a
Principal Prepayment in Full prior to such Due Date and which did not become a
Liquidated Mortgage Loan prior to such Due Date.

            Ownership Interest: As to any Residual Certificate, any ownership
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.

            P&I Advance: As to any Mortgage Loan or REO Property, any advance
made by the applicable Servicer in respect of any Remittance Date representing
the aggregate of all payments of principal and interest, net of the Servicing
Fee, that were due during the related Due Period on the Mortgage Loans and that
were delinquent on the related Determination Date, plus certain amounts
representing assumed payments not covered by any current net income on the
Mortgaged Properties acquired by foreclosure or deed-in-lieu of foreclosure as
determined pursuant to Section 4.01.

            Pass-Through Margin: With respect to each Class of Offered
Certificates (except as set forth in the following sentence), the following
percentages: Class A-1, 0.0500%; Class A-2, 0.1000%; Class A-3, 0.1400%; Class
A-4, 0.2200%; Class M-1, 0.2600%; Class M-2, 0.2800%; Class M-3, 0.3500%; Class
M-4, 0.3800%; Class M-5, 0.4200%; Class M-6, 0.5000%; Class B-1, 1.6000%; Class
B-2, 2.0000%; and Class B-3, 2.0000%. On the first Distribution Date after the
Optional Termination Date, the Pass-Through Margins shall increase to: Class
A-1, 0.1000%; Class A-2, 0.2000%; Class A-3, 0.2800%; Class A-4, 0.4400%; Class
M-1, 0.3900%; Class M-2, 0.4200%; Class M-3, 0.5250%; Class M-4, 0.5700%; Class
M-5, 0.6300%; Class M-6, 0.7500%; Class B-1, 2.4000%; Class B-2, 3.0000%; and
Class B-3, 3.0000%.

            Pass-Through Rate: For each Class of Regular Certificates, each
Pooling-Tier REMIC-1 Regular Interest, each Pooling-Tier REMIC-2 Regular
Interest, each Lower-Tier Regular Interest, each Upper-Tier Regular Interest and
each Class X REMIC Regular Interest, the per-annum rate set forth or calculated
in the manner described in the Preliminary Statement.

            PCAOB: The Public Company Accounting Oversight Board.

            Percentage Interest: As to any Certificate, the percentage interest
evidenced thereby in distributions required to be made on the related Class,
such percentage interest being set forth on the face thereof or equal to the
percentage obtained by dividing the Denomination of such Certificate by the
aggregate of the Denominations of all Certificates of the same Class.

            Periodic Mortgage Rate Cap: With respect to an Adjustable Rate
Mortgage Loan, the periodic limit on each Mortgage Rate adjustment as set forth
in the related Mortgage Note.

            Permitted Investments: Any one or more of the following obligations
or securities acquired at a purchase price of not greater than par, regardless
of whether issued by any Servicer, the Trustee or any of their respective
Affiliates:

                  (i) direct obligations of, or obligations fully guaranteed as
            to timely payment of principal and interest by, the United States or
            any agency or instrumentality thereof, provided such obligations are
            backed by the full faith and credit of the United States;

                  (ii) demand and time deposits in, certificates of deposit of,
            or bankers' acceptances (which shall each have an original maturity
            of not more than 90-days and, in the case of bankers' acceptances,
            shall in no event have an original maturity of more than 365 days or
            a remaining maturity of more than 30-days) denominated in United
            States dollars and issued by, any Depository Institution and rated
            "P-1" by Moody's, "F1+" by Fitch and "A-1+" by Standard & Poor's (to
            the extent they are Rating Agencies hereunder and are so rated by
            such Rating Agency);

                  (iii) repurchase obligations with respect to any security
            described in clause (i) above entered into with a Depository
            Institution (acting as principal);

                  (iv) securities bearing interest or sold at a discount that
            are issued by any corporation incorporated under the laws of the
            United States of America or any State thereof and that are rated by
            each Rating Agency that rates such securities in its highest
            long-term unsecured rating categories at the time of such investment
            or contractual commitment providing for such investment;

                  (v) commercial paper (including both non-interest-bearing
            discount obligations and interest-bearing obligations payable on
            demand or on a specified date not more than 30-days after the date
            of acquisition thereof) that is rated by each Rating Agency that
            rates such securities in its highest short-term unsecured debt
            rating available at the time of such investment;

                  (vi) units of money market funds, including money market funds
            advised by the Depositor, the Trustee or an Affiliate thereof, that
            have been rated "Aaa" by Moody's, "AAAm" by Standard & Poor's and at
            least "AA" by Fitch (to the extent they are Rating Agencies
            hereunder and such funds are so rated by such Rating Agency); and

                  (vii) if previously confirmed in writing to the Trustee, any
            other demand, money market or time deposit, or any other obligation,
             security or investment, as may be acceptable to the Rating Agencies
            as a permitted investment of funds backing "Aaa" or "AAA" rated
            securities;

provided, however, that no instrument described hereunder shall evidence either
the right to receive (a) only interest with respect to the obligations
underlying such instrument or (b) both principal and interest payments derived
from obligations underlying such instrument and the interest and principal
payments with respect to such instrument provide a yield to maturity at par
greater than 120% of the yield to maturity at par of the underlying obligations.

            Permitted Transferee: Any Person other than (i) the United States,
any State or political subdivision thereof, or any agency or instrumentality of
any of the foregoing, (ii) a foreign government, international organization or
any agency or instrumentality of either of the foregoing, (iii) an organization
(except certain farmers' cooperatives described in Section 521 of the Code)
which is exempt from tax imposed by Chapter 1 of the Code (including the tax
imposed by Section 511 of the Code on unrelated business taxable income) on any
excess inclusions (as defined in Section 860E(c)(1) of the Code) with respect to
any Residual Certificate, (iv) rural electric and telephone cooperatives
described in Section 1381(a)(2)(C) of the Code, (v) a Person that is not a U.S.
Person or a U.S. Person with respect to whom income from a Residual Certificate
is attributable to a foreign permanent establishment or fixed base, within the
meaning of an applicable income tax treaty of such Person or any other U.S.
Person, or a U.S. Person treated as a partnership for U.S. federal income tax
purposes, any direct or indirect beneficial owner of which (other than through a
U.S. corporation) is (or is permitted to be under the related partnership
agreement) not a U.S. Person, (vi) an "electing large partnership" within the
meaning of Section 775 of the Code and (vii) any other Person so designated by
the Depositor based upon an Opinion of Counsel that the Transfer of an Ownership
Interest in a Residual Certificate to such Person may cause any Trust REMIC to
fail to qualify as a REMIC at any time that the Certificates are outstanding.
The terms "United States", "State" and "international organization" shall have
the meanings set forth in Section 7701 of the Code or successor provisions. A
corporation will not be treated as an instrumentality of the United States or of
any State or political subdivision thereof for these purposes if all of its
activities are subject to tax and, with the exception of Freddie Mac, a majority
of its board of directors is not selected by such government unit.

            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.

            Physical Certificates: As specified in the Preliminary Statement.

             Pool Stated Principal Balance: As to any Distribution Date, the
aggregate of the Stated Principal Balances of the Mortgage Loans for such
Distribution Date that were Outstanding Mortgage Loans on the Due Date in the
related Due Period.

             Pooling-Tier Interest Rate: As specified in the Preliminary
Statement.

            Pooling-Tier REMIC-1: As described in the Preliminary Statement.

            Pooling-Tier REMIC-1 Interest Rate: As described in the Preliminary
Statement.

             Pooling-Tier REMIC-1 Principal Amount: As described in the
Preliminary Statement.

            Pooling-Tier REMIC-1 Regular Interest: As described in the
Preliminary Statement.

            Pooling-Tier REMIC-1 WAC Rate: With respect to the Mortgage Loans as
of any Distribution Date, a per-annum rate equal to (a) the weighted average of
the Adjusted Net Mortgage Rates for each such Mortgage Loan then in effect on
the beginning of the related Due Period on the Mortgage Loans, adjusted in each
case to accrue on the basis of a 360-day year and the actual number of days in
the related Interest Accrual Period. With respect to the first Due Period and
the first Distribution Date, the Pooling-Tier REMIC-1 Net WAC Rate should be
reduced by a fraction, the numerator of which is the Closing Date Deposit Amount
and the denominator of which is the Cut-off Date Pool Principal Balance.

            Pooling-Tier REMIC-2: As described in the Preliminary Statement.

            Pooling-Tier REMIC-2 Interest Rate: As described in the Preliminary
Statement.

            Pooling-Tier REMIC-2 IO Interest: Any of the Pooling-Tier REMIC-2
Regular Interests with the designation "IO" in its name.

            Pooling-Tier REMIC-2 IO Notional Balance: As described in the
Preliminary Statement.

            Pooling-Tier REMIC-2 Principal Amount: As described in the
Preliminary Statement.

            Pooling-Tier REMIC-2 Regular Interest: As described in the
Preliminary Statement.

            Prepayment Charge: Any prepayment premium, penalty or charge
collected by any Servicer with respect to a Mortgage Loan from a Mortgagor in
connection with any voluntary Principal Prepayment pursuant to the terms of the
related Mortgage Note.

            Prepayment Interest Excess: With respect to any Distribution Date,
any interest collected by a Servicer with respect to any Mortgage Loan serviced
by such Servicer as to which a Principal Prepayment in Full occurs from the 1st
day of the month through the 15th day of the month in which such Distribution
Date occurs and that represents interest that accrues from the 1st day of such
month to the date of such Principal Prepayment in Full.

            Prepayment Interest Shortfall: With respect to any Distribution
Date, the sum of, for each Mortgage Loan that was, during the portion of the
Prepayment Period from and including the 16th day of the month preceding the
month in which such Distribution Date occurs (or from the day following the
Cut-off Date, in the case of the first Distribution Date) through the last day
of such month, the subject of a Principal Prepayment which is not accompanied by
an amount equal to one-month of interest that would have been due on such
Mortgage Loan on the Due Date in the following month and which was applied by
the applicable Servicer to reduce the outstanding principal balance of such
Mortgage Loan on a date preceding such Due Date an amount equal to the product
of (a) the Mortgage Rate net of the Servicing Fee Rate for such Mortgage Loan,
(b) the amount of the Principal Prepayment for such Mortgage Loan, (c) 1/360 and
(d) the number of days commencing on the date on which such Principal Prepayment
was applied and ending on the last day of the calendar month in which the
related Prepayment Period begins.

            Prepayment Period: With respect to any Distribution Date and any
Servicer either (i) the period commencing on the 16th day of the month preceding
the month in which such Distribution Date occurs (or, in the case of the first
Distribution Date, from and including the Cut-off Date) to and including the
15th day of the month in which such Distribution Date occurs or (ii) the
calendar month prior to that Distribution Date, with respect to any partial
Principal Prepayments or any involuntary Principal Prepayments in the case of
Wells Fargo.

            Principal Distribution Amount: For any Distribution Date, the sum of
(i) the Basic Principal Distribution Amount for such Distribution Date and (ii)
the Extra Principal Distribution Amount for such Distribution Date.

            Principal Prepayment: Any full or partial payment or other recovery
of principal on a Mortgage Loan (including upon liquidation of a Mortgage Loan)
which is received by the applicable Servicer in advance of its scheduled Due
Date, excluding any Prepayment Charge thereon.

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

            Principal Remittance Amount: With respect to any Distribution Date,
the amount equal to the sum of the following amounts (without duplication) with
respect to the related Due Period: (i) each scheduled payment of principal on a
Mortgage Loan due during such Due Period and received by the applicable Servicer
on or prior to the related Determination Date or advanced by the applicable
Servicer for the related Remittance Date, and all Principal Prepayments received
during the related Prepayment Period; (ii) all Liquidation Proceeds,
Condemnation Proceeds and Insurance Proceeds on the Mortgage Loans allocable to
principal actually collected by the applicable Servicer during the related
Prepayment Period; (iii) the portion of the Repurchase Price allocable to
principal with respect to each Mortgage Loan repurchased with respect to such
Distribution Date; (iv) all Substitution Adjustment Amounts allocable to
principal received in connection with the substitutions of Mortgage Loans with
respect to such Distribution Date; (v) with respect to the Distribution Date in
March 2007 only, the portion of the Closing Date Deposit Amount allocable to
principal; and (vi) the allocable portion of the proceeds received with respect
to the termination of the Trust Fund pursuant to clause (a) of Section 9.01 (to
the extent such proceeds relate to principal).

            Private Certificates: As specified in the Preliminary Statement.

            Prospectus Supplement: The Prospectus Supplement, dated February 27,
2007, relating to the Offered Certificates.

            PTCE 95-60: As defined in Section 5.02(b).

            Purchase Agreements: Collectively, the Accredited Purchase
Agreement, the First NLC Purchase Agreement, the Fremont Purchase Agreement, the
Bulk Purchase Agreement and the Wilmington Purchase Agreement.

            Rating Agency: Each of the Rating Agencies specified in the
Preliminary Statement. If such organization or a successor is no longer in
existence, "Rating Agency" shall be such nationally recognized statistical
rating organization, or other comparable Person, as is designated by the
Depositor, notice of which designation shall be given to the Trustee. References
herein to a given rating or rating category of a Rating Agency shall mean such
rating category without giving effect to any modifiers. For purposes of Section
10.05(b), the addresses for notices to each Rating Agency shall be the address
specified therefor in the definition corresponding to the name of such Rating
Agency, or such other address as either such Rating Agency may hereafter furnish
to the Depositor, the Trustee and the Servicers.

            Realized Losses: With respect to any date of determination and any
Liquidated Mortgage Loan, the amount, if any, by which (a) the unpaid principal
balance of such Liquidated Mortgage Loan together with accrued and unpaid
interest thereon exceeds (b) the Liquidation Proceeds with respect thereto net
of the expenses incurred by the applicable Servicer in connection with the
liquidation of such Liquidated Mortgage Loan and net of the amount of
unreimbursed Servicing Advances with respect to such Liquidated Mortgage Loan.

            Record Date: With respect to any Distribution Date, the close of
business on the Business Day immediately preceding such Distribution Date;
provided, however, that for any Definitive Certificate, the Record Date shall be
the close of business on the last Business Day of the month preceding the month
in which the applicable Distribution Date occurs.

            Reference Bank: As defined in Section 4.04.

            Regular Certificates: As specified in the Preliminary Statement.

            Regulation AB: Subpart 229.1100 - Asset Backed Securities
(Regulation AB), 17 C.F.R. ss.ss.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 (January 7, 2005))
or by the staff of the Commission, or as may be provided by the Commission or
its staff from time to time.

            Relief Act Interest Shortfall: With respect to any Distribution Date
and any Mortgage Loan, any reduction in the amount of interest collectible on
such Mortgage Loan for the most recently ended Due Period as a result of the
application of the Servicemembers Civil Relief Act or any similar state
statutes.

            REMIC: A "real estate mortgage investment conduit" within the
meaning of Section 860D of the Code.

            REMIC Provisions: 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 promulgated thereunder, as the foregoing may be in effect from
time to time as well as provisions of applicable state laws.

            Remittance Date: With respect to any Distribution Date, the second
Business Day immediately preceding such Distribution Date with respect to
Countrywide Servicing, the third Business Day immediately preceding such
Distribution Date with respect to Wells Fargo and the 21st day (or if such day
is a Saturday, then the first Business Day immediately preceding that day, or if
such day is a Sunday or otherwise not a Business Day, then the immediately
following Business Day) of the month of each related Distribution Date with
respect to Saxon.

            REO Disposition: The final sale by the applicable Servicer of any
REO Property.

            REO Imputed Interest: As to any REO Property, for any period, an
amount equivalent to interest (at the Mortgage Rate net of the Servicing Fee
Rate that would have been applicable to the related Mortgage Loan had it been
outstanding) on the unpaid principal balance of the Mortgage Loan as of the date
of acquisition thereof (as such balance is reduced pursuant to Section 3.17 by
any income from the REO Property treated as a recovery of principal).

            REO Mortgage Loan: A Mortgage Loan where title to the related
Mortgaged Property has been obtained by the applicable Servicer in the name of
the Trustee on behalf of the Certificateholders.

            REO Property: A Mortgaged Property acquired by the Trust Fund
through foreclosure or deed-in-lieu of foreclosure in connection with a
defaulted Mortgage Loan.

            Replacement Swap Provider Payment: Any payments that have been
received by the Trust as a result of entering into a replacement interest rate
swap agreement.

            Reportable Event: As defined in Section 8.12(g).

            Representations and Warranties Agreement: The Representations and
Warranties Agreement, dated as of February 28, 2007, between the Depositor and
the Sponsor, a copy of which is attached hereto as Exhibit CC.

            Repurchase Price: With respect to any Mortgage Loan repurchased by
(a) the Depositor or the Responsible Party, an amount equal to the sum of (i)
the unpaid principal balance of such Mortgage Loan as of the date of repurchase,
(ii) interest on such unpaid principal balance of such Mortgage Loan at the
Mortgage Rate from the last date through which interest has been paid and
distributed to the Trustee to the date of repurchase, (iii) all unreimbursed
Servicing Advances, (iv) all costs and expenses incurred by the Trustee arising
out of or based upon such breach, including without limitation, costs and
expenses relating to the Trustee's enforcement of the repurchase obligation of
the Depositor or the Responsible Party hereunder and (v) any costs and damages
incurred by the Trust in connection with any violation by such Mortgage Loan of
any predatory lending law or abusive lending law and (b) Accredited, Fremont or
Wilmington, the repurchase price specified in the Accredited Agreements, the
Fremont Agreements or the Wilmington Agreements, as applicable. In addition to
the Repurchase Price, the Responsible Party is obligated to make certain
payments for material breaches of representations and warranties as further set
forth in Section 2.03(p) in this Agreement, and each of Accredited, Fremont and
Wilmington is obligated to make certain payments for material breaches of
representations and warranties as further set forth in the Accredited
Agreements, the Fremont Agreements and the Wilmington Agreements, as applicable.

            Request for Release: The Request for Release submitted by the
applicable Servicer to the Trustee or the Custodian, as applicable,
substantially in the form of Exhibit J.

            Residual Certificates: As specified in the Preliminary Statement.

            Responsible Officer: When used with respect to the Trustee, any
managing director, any vice president, any assistant vice president, any
assistant secretary, any assistant treasurer, any associate, or any other
officer of the Trustee, customarily performing functions similar to those
performed by any of the above designated officers who at such time shall be
officers to whom, with respect to a particular matter, such matter is referred
because of such officer's knowledge of and familiarity with the particular
subject and who shall have direct responsibility for the administration of this
Agreement.

            Responsible Party: First NLC.

            Reuters Page LIBOR01: The display page currently so designated on
the Reuters Xtra 3000 Service (or such other page as may replace that page on
that service or any successor service for displaying comparable rates or
prices).

            Rule 144A Letter: As defined in Section 5.02(b).

            Sarbanes Certification: As defined in Section 8.12(c).

            Saxon: Saxon Mortgage Services, Inc., a Texas corporation, and its
successors in interest.

            Scheduled Payment: The scheduled monthly payment on a Mortgage Loan
due on any Due Date allocable to principal and/or interest on such Mortgage Loan
which, unless otherwise specified herein, shall give effect to any related Debt
Service Reduction and any Deficient Valuation that affects the amount of the
monthly payment due on such Mortgage Loan.

            Second-Lien Mortgage Loan: A Mortgage Loan secured by a second-lien
Mortgage on the related Mortgaged Property.

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

            Senior Enhancement Percentage: With respect to any Distribution
Date, the percentage obtained by dividing (x) the sum of (i) the aggregate Class
Certificate Balance of the Subordinated Certificates and (ii) the Subordinated
Amount, in each case after taking into account the distribution of the Principal
Distribution Amount, including any principal payments on those Classes of
Certificates from the Swap Account on that Distribution Date, by (y) the
aggregate Stated Principal Balance of the Mortgage Loans for such Distribution
Date.

            Senior Specified Enhancement Percentage: As of any date of
determination, 44.80%.

            Servicer: Wells Fargo, Countrywide Servicing or Saxon, as
applicable, and if a successor is appointed hereunder, such successor. When the
term "Servicer" is used in this Agreement in connection with the administration
of servicing obligations with respect to any Mortgage Loan, Mortgaged Property,
REO Property or Mortgage File, "Servicer" shall mean the Person identified as
the Servicer of such Mortgage Loan on the Mortgage Loan Schedule.

            Servicer Remittance Report: As defined in Section 4.03(e).

            Servicing Advances: The reasonable "out-of-pocket" costs and
expenses (including legal fees) incurred by the applicable Servicer in the
performance of its servicing obligations in connection with a default,
delinquency or other unanticipated event, including, but not limited to, the
cost of (i) the preservation, restoration, inspection and protection of a
Mortgaged Property, (ii) any enforcement, administrative or judicial
proceedings, including foreclosures and litigation, in respect of a particular
Mortgage Loan, (iii) the management (including reasonable fees in connection
therewith) and liquidation of any REO Property and (iv) the performance of its
obligations under Sections 3.01, 3.09, 3.13 and 3.15. The Servicing Advances
shall also include any reasonable "out-of-pocket" costs and expenses (including
legal fees) incurred by the applicable Servicer in connection with executing and
recording instruments of satisfaction, deeds of reconveyance or Assignments of
Mortgage in connection with any foreclosure in respect of any Mortgage Loan to
the extent not recovered from the Mortgagor or otherwise payable under this
Agreement. No Servicer shall be required to make any Nonrecoverable Servicing
Advances.

            Servicing Criteria: The "servicing criteria" set forth in Item
1122(d) of Regulation AB, which as of the Closing Date are listed on Exhibit U
hereto. With respect to Countrywide Servicing, "servicing criteria" shall have
the meaning set forth in the Countrywide Amendment Regulation AB.

            Servicing Fee: With respect to each Servicer, each Mortgage Loan
serviced by such Servicer and for any calendar month, an amount equal to one
month's interest at the Servicing Fee Rate on the applicable Stated Principal
Balance of such Mortgage Loan as of the close of business on the day immediately
preceding the first day of the related Due Period. Such fee shall be payable
monthly, solely from the interest portion (including recoveries with respect to
interest from Liquidation Proceeds, Insurance Proceeds, Condemnation Proceeds
and proceeds received with respect to REO Properties, to the extent permitted by
Section 3.11) of such Scheduled Payment collected by such Servicer, or as
otherwise provided under Section 3.11.

             Servicing Fee Rate: With respect to each Mortgage Loan, 0.50%
per annum.

            Servicing File: With respect to each Mortgage Loan, the file
retained by the applicable Servicer consisting of originals or copies of all
documents in the Mortgage File which are not delivered to the Custodian in the
Custodial File and copies of the Mortgage Loan Documents set forth in Exhibit K
hereto.

            Servicing Function Participant: As defined in Section 3.23(a).

            Servicing Officer: Any officer of any Servicer involved in, or
responsible for, the administration and servicing of the Mortgage Loans whose
name and facsimile signature appear on a list of servicing officers furnished to
the Trustee by any Servicer on the Closing Date pursuant to this Agreement, as
such list may from time to time be amended.

            Significant Change to a Permitted Activity: With respect to any
amendment or other instrument entered into pursuant to Section 10.01, a change
to the activities of the Trust that would significantly change its permitted
activities and thus cause the Trust to cease to be a "qualifying special purpose
entity" under accounting principles generally accepted in the United States.
This definition shall be interpreted in a manner consistent with the
requirements of Statement of Financial Accounting Standards No. 140, Accounting
for Transfers and Servicing of Financial Assets and Extinguishments of
Liabilities, or any successor to that accounting standard, and any other
relevant authoritative accounting literature, as such requirements are
applicable from time to time.

            Similar Law: As defined in Section 5.02(b).

            60+ Day Delinquent Mortgage Loan: (i) Each Mortgage Loan with
respect to which any portion of a Scheduled Payment is, as of the last day of
the prior Due Period, two months or more delinquent, including, without
limitation, such Mortgage Loans that are subject to bankruptcy proceedings, (ii)
each Mortgage Loan in foreclosure and (iii) each REO Property.

             Specified Subordinated Amount: Prior to the Stepdown Date, an amount
equal to 3.95% of the Cut-off Date Pool Principal Balance. On and after the
Stepdown Date, an amount equal to 7.90% of the aggregate Stated Principal
Balance of the Mortgage Loans for such Distribution Date, subject, until the
Class Certificate Balance of each Class of Offered Certificates has been reduced
to zero, to a minimum amount equal to 0.50% of the Cut-off Date Pool Principal
Balance; provided, however, that if, on any Distribution Date, a Trigger Event
exists, the Specified Subordinated Amount shall not be reduced to the applicable
percentage of the then aggregate Stated Principal Balance of the Mortgage Loans
but will instead remain the same as the prior period's Specified Subordinated
Amount until the Distribution Date on which a Trigger Event is no longer in
effect. When the Class Certificate Balance of each Class of Offered Certificates
has been reduced to zero, the Specified Subordinated Amount will thereafter
equal zero.

            Sponsor: Morgan Stanley Mortgage Capital Inc., a New York
corporation, and its successors in interest, as purchaser of the Mortgage Loans
under each of the Purchase Agreements.

            Standard & Poor's: Standard & Poor's Ratings Services, a division of
The McGraw Hill Companies, Inc., and its successors in interest. If Standard &
Poor's is designated as a Rating Agency in the Preliminary Statement, for
purposes of Section 10.05(b) the address for notices to Standard & Poor's shall
be Standard & Poor's, 55 Water Street, New York, New York 10041, Attention:
Residential Mortgage Surveillance Group - Morgan Stanley Home Equity Loan Trust
2007-1, or such other address as Standard & Poor's may hereafter furnish to the
Depositor, the Trustee and the Servicers.

            Standard & Poor's Glossary: The Standard & Poor's LEVELS(R)
Glossary, as may be in effect from time to time.

            Startup Day: As defined in Section 2.05.

            Stated Principal Balance: As to each Mortgage Loan and as of any
date of determination, (i) the principal balance of the Mortgage Loan at the
Cut-off Date after giving effect to payments of principal due on or before such
date (whether or not received), minus (ii) all amounts previously remitted to
the Trustee with respect to the related Mortgage Loan representing payments or
recoveries of principal including advances in respect of scheduled payments of
principal. For purposes of any Distribution Date, the Stated Principal Balance
of any Mortgage Loan will give effect to any scheduled payments of principal
received by the related Servicer on or prior to the related Determination Date
or advanced by the related Servicer for the related Remittance Date and any
unscheduled principal payments and other unscheduled principal collections
received during the related Prepayment Period, and the Stated Principal Balance
of any Mortgage Loan that has prepaid in full or has become a Liquidated
Mortgage Loan during the related Prepayment Period shall be zero.

             Stepdown Date: The later to occur of (i) the earlier to occur of (a)
the Distribution Date in March 2010 and (b) the Distribution Date following the
Distribution Date on which the aggregate Class Certificate Balances of the Class
A Certificates have been reduced to zero and (ii) the first Distribution Date on
which the Senior Enhancement Percentage (calculated for this purpose only after
taking into account payments of principal on the Mortgage Loans applied to
reduce the Stated Principal Balances of the Mortgage Loans for the applicable
Distribution Date but prior to any allocation of the Principal Distribution
Amount and principal payments from the Swap Account to the Certificates on such
Distribution Date) is greater than or equal to the Senior Specified Enhancement
Percentage.

            Subcontractor: Any third-party or Affiliated vendor, subcontractor
or other Person utilized by a Servicer, a Subservicer, the Trustee or the
Custodian, as applicable, that is not responsible for the overall servicing (as
"servicing" is commonly understood by participants in the mortgage-backed
securities market) of Mortgage Loans but performs one or more discrete functions
identified in Item 1122(d) of Regulation AB with respect to Mortgage Loans. With
respect to Countrywide Servicing, "Subcontractor" shall have the meaning set
forth in the Countrywide Amendment Regulation AB.

            Subordinated Amount: With respect to any Distribution Date, the
excess, if any, of (a) the aggregate Stated Principal Balance of the Mortgage
Loans for such Distribution Date over (b) the aggregate of the Class Certificate
Balances of the Offered Certificates as of such Distribution Date (after giving
effect to the payment of the Principal Remittance Amount on such Certificates on
such Distribution Date).

            Subordinated Certificates: As specified in the Preliminary
Statement.

            Subordination Deficiency: With respect to any Distribution Date, the
excess, if any, of (a) the Specified Subordinated Amount applicable to such
Distribution Date over (b) the Subordinated Amount applicable to such
Distribution Date.

            Subordination Reduction Amount: With respect to any Distribution
Date, an amount equal to the lesser of (a) the Excess Subordinated Amount and
(b) the Net Monthly Excess Cash Flow.

            Subsequent Recovery: With respect to any Mortgage Loan or related
Mortgaged Property that became a Liquidated Mortgage Loan or was otherwise
disposed of, all amounts received in respect of such Liquidated Mortgage Loan
after an Applied Realized Loss Amount related to such Mortgage Loan or Mortgaged
Property is allocated to reduce the Class Certificate Balance of any Class of
Subordinated Certificates. Any Subsequent Recovery that is received during a
Prepayment Period will be treated as Liquidation Proceeds and included as part
of the Principal Remittance Amount for the related Distribution Date.

            Subservicer: Any Person that services Mortgage Loans on behalf of a
Servicer or any Subservicer and is responsible for the performance (whether
directly or through Subservicers or Subcontractors) of a substantial portion of
the material servicing functions required to be performed by a Servicer under
this Agreement with respect to some or all of the Mortgage Loans, that are
identified in Item 1122(d) of Regulation AB. With respect to Countrywide
Servicing, "Subservicer" shall have the meaning set forth in the Countrywide
Amendment Regulation AB.

            Subservicing Account: As defined in Section 3.08.

             Subservicing Agreements: As defined in Section 3.02(a).

            Substitute Mortgage Loan: A Mortgage Loan (i) substituted by the
Responsible Party, Accredited, Fremont or Wilmington for a Deleted Mortgage Loan
that satisfies the criteria set forth in the definition of "Qualified Substitute
Mortgage Loan" in the applicable Purchase Agreement or (ii) substituted by the
Depositor for a Deleted Mortgage Loan, which, if substituted by the Depositor,
must, on the date of such substitution, as confirmed in a Request for Release,
substantially in the form of Exhibit J, (a) have a Stated Principal Balance,
after deduction of the principal portion of the Scheduled Payment due in the
month of substitution, not in excess of, and not more than 10% less than, the
Stated Principal Balance of the Deleted Mortgage Loan; (b) be accruing interest
at a rate no lower than and not more than 1% per-annum higher than, that of the
Deleted Mortgage Loan; (c) have a Loan-to-Value Ratio or a Combined
Loan-to-Value Ratio, as applicable, no higher than that of the Deleted Mortgage
Loan; (d) have a remaining term to maturity no greater than (and not more than
one year less than that of) the Deleted Mortgage Loan; and (e) comply with each
applicable representation and warranty set forth in Section 2.03 and in the
Representations and Warranties Agreement.

            Substitution Adjustment Amount: As defined in Section 2.03.

            Swap Account: As defined in Section 4.06.

            Swap Assets: Collectively, the Swap Account, the Interest Rate Swap
Agreement, the Class IO Interest and the right to receive Class IO Shortfalls,
subject to the obligation to pay amounts specified in Section 4.06.

            Swap LIBOR: With respect to any Distribution Date (and the related
Interest Accrual Period), the product of (i) USD-LIBOR-BBA (as used in the
Interest Swap Agreement), (ii) two, and (iii) the quotient of (a) the actual
number of days in the Interest Accrual Period for the Offered Certificates
divided by (b) 30.

             Swap Payment Allocation: For any Class of Certificates and any
Distribution Date, that Class's pro rata share of the Net Swap Receipts, if any,
for that Distribution Date, based on the Class Certificate Balances of the
Classes of Certificates.

             Swap Payment Rate: For any Distribution Date, a fraction, the
numerator of which is any Net Swap Payment or Swap Termination Payment (other
than a Defaulted Swap Termination Payment) payable from Available Funds to the
Swap Provider for such Distribution Date and the denominator of which is the
aggregate Stated Principal Balance of the Mortgage Loans at the beginning of the
related Due Period, multiplied by 12.

            Swap Provider: Morgan Stanley Capital Services Inc., a Delaware
corporation, and its successors in interest.

            Swap Termination Payment: Any payment payable by the Trust or the
Swap Provider upon termination of the Interest Rate Swap Agreement as a result
of an Event of Default (as defined in the Interest Rate Swap Agreement) or a
Termination Event (as defined in the Interest Rate Swap Agreement); provided
that a Swap Termination Payment shall not be paid from Available Funds to the
extent already paid by a replacement swap provider as a Replacement Swap
Provider Payment.

            Tax Matters Person: The Holder of the (i) Class R and (ii) Class RX
Certificates designated as "tax matters person" of (i) Pooling-Tier REMIC-1,
Pooling-Tier REMIC-2, the Lower-Tier REMIC and the Upper-Tier REMIC, and (ii)
the Class X REMIC respectively, in the manner provided under Treasury
Regulations Section 1.860F-4(d) and Treasury Regulations Section
301.6231(a)(7)-1.

            Tax Service Contract: As defined in Section 3.09(a).

            Total Monthly Excess Spread: As to any Distribution Date, an amount
equal to the excess if any, of (i) the interest on the Mortgage Loans received
by the Servicers on or prior to the related Determination Date (other than
Prepayment Interest Excesses) or advanced by the Servicers for the related
Remittance Date (net of Expense Fees) over (ii) the sum of (A) the amounts
payable to the Certificates pursuant to Section 4.02(a)(i) on such Distribution
Date, (B) any Net Swap Payments to the Swap Provider and (C) any Swap
Termination Payment (other than a Defaulted Swap Termination Payment) payable to
the Swap Provider from Available Funds.

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

            Transfer Affidavit: As defined in Section 5.02(c).

            Transferor Certificate: As defined in Section 5.02(b).

            Trigger Event: Either a Cumulative Loss Trigger Event or a
Delinquency Loss Trigger Event.

            Trust: The express trust created hereunder in Section 2.01(c).

            Trust Fund: The corpus of the trust created hereunder consisting of
(i) the Mortgage Loans and all principal outstanding as the close of business on
the Cut-off Date (after giving effect to payments of principal due on or prior
to the Cut-off Date, whether or not received) and interest due and accrued on
the Mortgage Loan after the Cut-off Date (or, if the Due Date for any Mortgage
Loan is other than on the first day of the month, after the Due Date immediately
preceding the Cut-off Date); (ii) the Collection Accounts, the Excess Reserve
Fund Account, the Distribution Account, and all amounts deposited therein
pursuant to the applicable provisions of this Agreement; (iii) property that
secured a Mortgage Loan and has been acquired by foreclosure, deed-in-lieu of
foreclosure or otherwise; (iv) the Closing Date Deposit Amount; (v) the Swap
Assets; (vi) the Depositor's rights under the Accredited Agreements, the Fremont
Agreements and the Wilmington