Document:

<PAGE>

                                   Exhibit 4.2

<PAGE>

                         SUBSEQUENT TRANSFER INSTRUMENT

            Pursuant to this Subsequent Transfer Instrument, dated September 4,
2003 (the "Instrument"), between Ameriquest Mortgage Securities Inc. as seller
(the "Depositor") and Deutsche Bank National Trust Company as trustee (the
"Trustee") of the Ameriquest Mortgage Securities Inc., Asset-Backed Pass-Through
Certificates, Series 2003-8, and pursuant to the Pooling and Servicing
Agreement, dated as of August 1, 2003 (the "Pooling and Servicing Agreement"),
among the Depositor as depositor, Ameriquest Mortgage Company as master servicer
and the Trustee as trustee, the Depositor and the Trustee agree to the sale by
the Depositor and the purchase by the Trustee on behalf of the Trust Fund, of
the Mortgage Loans listed on the attached Schedule of Mortgage Loans (the
"Subsequent Mortgage Loans").

            Capitalized terms used but not otherwise defined herein shall have
the meanings set forth in the Pooling and Servicing Agreement.

            Section 1. Conveyance of Subsequent Mortgage Loans.

            (a) The Depositor does hereby sell, transfer, assign, set over and
convey to the Trustee on behalf of the Trust Fund, without recourse, all of its
right, title and interest in and to the Subsequent Mortgage Loans, and including
all amounts due on the Subsequent Mortgage Loans after the related Subsequent
Cut-off Date, and all items with respect to the Subsequent Mortgage Loans to be
delivered pursuant to Section 2.01 of the Pooling and Servicing Agreement;
provided, however that the Depositor reserves and retains all right, title and
interest in and to amounts due on the Subsequent Mortgage Loans on or prior to
the related Subsequent Cut-off Date. The Depositor, contemporaneously with the
delivery of this Agreement, has delivered or caused to be delivered to the
Trustee each item set forth in Section 2.01 of the Pooling and Servicing
Agreement. The transfer to the Trustee by the Depositor of the Subsequent
Mortgage Loans identified on the Mortgage Loan Schedule shall be absolute and is
intended by the Depositor, the Master Servicer, the Trustee and the
Certificateholders to constitute and to be treated as a sale by the Depositor to
the Trust Fund.

            (b) The Depositor, concurrently with the execution and delivery
hereof, does hereby transfer, assign, set over and otherwise convey to the
Trustee without recourse for the benefit of the Certificateholders all the
right, title and interest of the Depositor, in, to and under the Subsequent
Mortgage Loan Purchase Agreement, dated the date hereof, between the Depositor
as purchaser and the Master Servicer as originator and as seller, to the extent
of the Subsequent Mortgage Loans.

            (c) Additional terms of the sale are set forth on Attachment A
hereto.

            Section 2. Representations and Warranties; Conditions Precedent.

            (a) The Depositor hereby confirms that each of the conditions
precedent and the representations and warranties set forth in Section 2.10 of
the Pooling and Servicing Agreement are satisfied as of the date hereof.

<PAGE>

            (b) All terms and conditions of the Pooling and Servicing Agreement
are hereby ratified and confirmed; provided, however, that in the event of any
conflict, the provisions of this Instrument shall control over the conflicting
provisions of the Pooling and Servicing Agreement.

            Section 3. Recordation of Instrument.

            To the extent permitted by applicable law, this Instrument, or a
memorandum thereof if permitted under applicable law, is subject to recordation
in all appropriate public offices for real property records in all of the
counties or other comparable jurisdictions in which any or all of the properties
subject to the Mortgages are situated, and in any other appropriate public
recording office or elsewhere, such recordation to be effected by the Master
Servicer at the Certificateholders' expense on direction of the related
Certificateholders, but only when accompanied by an Opinion of Counsel to the
effect that such recordation materially and beneficially affects the interests
of the Certificateholders or is necessary for the administration or servicing of
the Mortgage Loans.

            Section 4. Governing Law.

            This Instrument shall be construed in accordance with the laws of
the State of New York and the obligations, rights and remedies of the parties
hereunder shall be determined in accordance with such laws, without giving
effect to principles of conflicts of law.

            Section 5. Counterparts.

            This Instrument may be executed in one or more counterparts and by
the different parties hereto on separate counterparts, each of which, when so
executed, shall be deemed to be an original; such counterparts, together, shall
constitute one and the same instrument.

            Section 6. Successors and Assigns.

            This Instrument shall inure to the benefit of and be binding upon
the Depositor, the Trustee and their respective successors and assigns.

<PAGE>

                                        AMERIQUEST MORTGAGE SECURITIES INC.

                                        By: /s/ John P. Grazer
                                            ----------------------
                                        Name:  John P. Grazer
                                        Title: CFO

                                        DEUTSCHE BANK NATIONAL TRUST COMPANY,
                                        as Trustee

                                        By: /s/ Valerie Delgado
                                            ----------------------
                                        Name:  Valerie Delgado
                                        Title: Associate

ATTACHMENTS

A.    Additional terms of sale.
B.    Schedule of Subsequent Mortgage Loans.

<PAGE>

                                  ATTACHMENT A

                            ADDITIONAL TERMS OF SALE

      A. General

            1.    Subsequent Cut-off Date: September 1, 2003

            2.    Subsequent Transfer Date: September 4, 2003

            3.    Aggregate Principal Balance of the Subsequent Mortgage Loans
                  as of the Subsequent Cut-off Date: $499,999,758.47

            4.    Purchase Price: 100.00%

      B. The following representations and warranties with respect to each
Subsequent Mortgage Loan determined as of the Subsequent Cut-off Date are true
and correct: (i) the Subsequent Mortgage Loan may not be 30 or more days
delinquent as of the related Subsequent Cut-off Date; provided, however that the
Subsequent Mortgage Loans may have a first payment date occurring on or after
the Subsequent Cut-off Date and, therefore, such Subsequent Mortgage Loans could
not have been delinquent as of the Subsequent Cut-off Date; (ii) the remaining
term to stated maturity of the Subsequent Mortgage Loan will not be less than
174 months and will not exceed 360 months from its first payment date; (iii) the
Subsequent Mortgage Loan may not provide for negative amortization; (iv) the
Subsequent Mortgage Loan will not have a loan-to-value ratio greater than
95.00%; (v) the Subsequent Mortgage Loans will have, as of the related
Subsequent Cut-off Date, a weighted average age since origination not in excess
of 2 months; (vi) no Subsequent Mortgage Loan will have a Mortgage Rate less
than 4.77% or greater than 14.30%; (vii) the Subsequent Mortgage Loan will have
been serviced by the Master Servicer since origination or purchase by the
Originator in accordance with its standard servicing practices; (viii) the
Subsequent Mortgage Loan must have a first payment date occurring on or before
December 1, 2003; and (ix) the Subsequent Mortgage Loan will have been
underwritten in accordance with the criteria set forth under "--Underwriting
Standards" in the Prospectus Supplement.

      C. Following the purchase of the Subsequent Group I Mortgage Loans, the
Group I Mortgage Loans (including the related Subsequent Group I Mortgage Loans)
will, as of the related Subsequent Cut-off Date: (i) have a weighted average
original term to stated maturity of not more than 360 months from the first
payment date thereon; (ii) have a weighted average Mortgage Rate of not less
than 8.47% and not more than 8.72%; (iii) have a weighted average Loan-to-Value
Ratio of not more than 78.71%, (iv) have no Mortgage Loan with a Principal
Balance in excess of $488,273, (v) consist of Mortgage Loans with Prepayment
Charges representing no less than approximately 80.20% of the Group I Mortgage
Loans and (vi) with respect to the Adjustable-Rate Mortgage Loans in Loan Group
I, have a weighted average Gross Margin of not less than 6.01%, in each case,
measured by aggregate Principal Balance of the Group I Mortgage Loans as of the
related Cut-off Date.

      D. Following the purchase of the Subsequent Group II Mortgage Loans, the
Group II Mortgage Loans (including the related Subsequent Group II Mortgage
Loans) will, as of the related Subsequent Cut-off Date: (i) have a weighted
average original term to stated maturity of not more than 360 months from the
first payment date thereon; (ii) have a weighted average Mortgage Rate

<PAGE>

of not less than 7.50% and not more than 7.75%; (iii) have a weighted average
Loan-to-Value Ratio of not more than 79.69%; (iv) have no Mortgage Loan with a
Principal Balance in excess of $598,912 and (v) consist of Mortgage Loans with
Prepayment Charges representing no less than approximately 79.21% of the Group
II Mortgage Loans.

      E. Following the purchase of the Subsequent Group III Mortgage Loans, the
Group III Mortgage Loans (including the related Subsequent Group III Mortgage
Loans) will, as of the related Subsequent Cut-off Date: (i) have a weighted
average original term to stated maturity of not more than 360 months from the
first payment date thereon; (ii) have a weighted average Mortgage Rate of not
less than 7.89% and not more than 8.14%; (iii) have a weighted average
Loan-to-Value Ratio of not more than 79.83%; (iv) have no Mortgage Loan with a
Principal Balance in excess of $748,416; (v) consist of Mortgage Loans with
Prepayment Charges representing no less than approximately 73.82% of the Group
III Mortgage Loans; and (vi) with respect to the Adjustable-Rate Mortgage Loans
in Loan Group III, have a weighted average Gross Margin of not less than 5.78%,
in each case, measured by aggregate Principal Balance of the Group III Mortgage
Loans as of the related Cut-off Date.

<PAGE>

                                  ATTACHMENT B

                      SCHEDULE OF SUBSEQUENT MORTGAGE LOANS

                                [FILED BY PAPER]MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

                                    Depositor

                      CHASE MANHATTAN MORTGAGE CORPORATION

                                    Servicer

                                       and

                         U.S. BANK NATIONAL ASSOCIATION

                                     Trustee

                         POOLING AND SERVICING AGREEMENT
                          Dated as of September 1, 2003

                  MASTR Asset Backed Securities Trust 2003-WMC2
                       Mortgage Pass-Through Certificates

                                Series 2003-WMC2

<PAGE>

<TABLE>
<CAPTION>
                                                 TABLE OF CONTENTS

                                                     ARTICLE I

                                                    DEFINITIONS
<S>                                                                                                            <C>
         SECTION 1.01.     Defined Terms........................................................................-1-
         SECTION 1.02.     Allocation of Certain Interest Shortfalls...........................................-49-
         SECTION 1.03      Rights of the NIMS Insurer..........................................................-50-

                                                    ARTICLE II

                                           CONVEYANCE OF MORTGAGE LOANS;
                                         ORIGINAL ISSUANCE OF CERTIFICATES
         SECTION 2.01.     Conveyance of the Mortgage Loans....................................................-51-
         SECTION 2.02.     Acceptance of REMIC I by Trustee....................................................-53-
         SECTION 2.03.     Repurchase or Substitution of Mortgage Loans by the Originator or
                           the Seller..........................................................................-55-
         SECTION 2.04.     Reserved............................................................................-57-
         SECTION 2.05.     Representations, Warranties and Covenants of the Servicer...........................-57-
         SECTION 2.06.     Issuance of the REMIC I Regular Interests and the Class R-I
                           Interest............................................................................-59-
         SECTION 2.07.     Conveyance of the REMIC I Regular Interests; Acceptance of
                           REMIC II by the Trustee.............................................................-60-
         SECTION 2.08.     Issuance of Class R Certificates....................................................-60-

                                                    ARTICLE III

                                           ADMINISTRATION AND SERVICING
                                               OF THE MORTGAGE LOANS
         SECTION 3.01.     Servicer to Act as Servicer.........................................................-61-
         SECTION 3.02.     Sub-Servicing Agreements Between Servicer and
                                    Sub-Servicers..............................................................-62-
         SECTION 3.03.     Successor Sub-Servicers.............................................................-63-
         SECTION 3.04.     Liability of the Servicer...........................................................-64-
         SECTION 3.05.     No Contractual Relationship Between Sub-Servicers and the NIMS
                           Insurer, the Trustee or Certificateholders..........................................-64-
         SECTION 3.06.     Assumption or Termination of Sub-Servicing Agreements by
                           Trustee.............................................................................-64-
         SECTION 3.07.     Collection of Certain Mortgage Loan Payments........................................-65-
         SECTION 3.08.     Sub-Servicing Accounts..............................................................-65-
         SECTION 3.09.     Collection of Taxes, Assessments and Similar Items; Escrow
                           Accounts............................................................................-66-
         SECTION 3.10.     Collection Account and Distribution Account.........................................-67-
         SECTION 3.11.     Withdrawals from the Collection Account and Distribution
                           Account.............................................................................-69-
         SECTION 3.12.     Investment of Funds in the Collection Account and the Distribution

                                                        -i-

<PAGE>

                           Account.............................................................................-71-
         SECTION 3.13.     [Reserved]..........................................................................-72-
         SECTION 3.14.     Maintenance of Hazard Insurance and Errors and Omissions and
                           Fidelity Coverage...................................................................-72-
         SECTION 3.15.     Enforcement of Due-On-Sale Clauses; Assumption Agreements
                            ...................................................................................-74-
         SECTION 3.16.     Realization Upon Defaulted Mortgage Loans...........................................-75-
         SECTION 3.17.     Trustee to Cooperate; Release of Mortgage Files.....................................-77-
         SECTION 3.18.     Servicing Compensation..............................................................-78-
         SECTION 3.19.     Reports to the Trustee; Collection Account Statements...............................-79-
         SECTION 3.20.     Statement as to Compliance..........................................................-79-
         SECTION 3.21.     Independent Public Accountants' Servicing Report....................................-79-
         SECTION 3.22.     Access to Certain Documentation.....................................................-80-
         SECTION 3.23.     Title, Management and Disposition of REO Property...................................-80-
         SECTION 3.24.     Obligations of the Servicer in Respect of Prepayment Interest
                           Shortfalls..........................................................................-83-
         SECTION 3.25.     [Reserved]..........................................................................-83-
         SECTION 3.26.     Obligations of the Servicer in Respect of Mortgage Rates and
                           Monthly Payments....................................................................-83-
         SECTION 3.27.     [Reserved]..........................................................................-84-
         SECTION 3.28.     [Reserved]..........................................................................-84-
         SECTION 3.29.     Advance Facility....................................................................-84-

                                                    ARTICLE IV

                                          PAYMENTS TO CERTIFICATEHOLDERS
         SECTION 4.01.     Distributions.......................................................................-86-
         SECTION 4.02.     Statements to Certificateholders....................................................-97-
         SECTION 4.03.     Remittance Reports; Advances.......................................................-100-
         SECTION 4.04.     Allocation of Realized Losses......................................................-102-
         SECTION 4.05.     Compliance with Withholding Requirements...........................................-104-
         SECTION 4.07.     Net WAC Rate Carryover Reserve Account

                                                     ARTICLE V

                                                 THE CERTIFICATES
         SECTION 5.01.     The Certificate....................................................................-107-
         SECTION 5.02.     Registration of Transfer and Exchange of Certificates..............................-109-
         SECTION 5.03.     Mutilated, Destroyed, Lost or Stolen Certificates..................................-113-
         SECTION 5.04.     Persons Deemed Owners..............................................................-114-
         SECTION 5.05.     Certain Available Information......................................................-114-

                                                    ARTICLE VI

                                          THE DEPOSITOR AND THE SERVICER
         SECTION 6.01.     Liability of the Depositor and the Servicer........................................-115-

                                                       -ii-

<PAGE>

         SECTION 6.02.     Merger or Consolidation of the Depositor or the Servicer...........................-115-
         SECTION 6.03.     Limitation on Liability of the Depositor, the Servicer and
                           Others.............................................................................-116-
         SECTION 6.04.     Limitation on Resignation of the Servicer..........................................-117-
         SECTION 6.05.     Rights of the Depositor in Respect of the Servicer.................................-117-

                                                    ARTICLE VII

                                                      DEFAULT
         SECTION 7.01.     Servicer Events of Default.........................................................-119-
         SECTION 7.02.     Trustee to Act; Appointment of Successor...........................................-121-
         SECTION 7.03.     Notification to Certificateholders.................................................-122-
         SECTION 7.04.     Waiver of Servicer Events of Default...............................................-123-
         SECTION 7.05.     Survivability of Servicer Liabilities..............................................-123-

                                                   ARTICLE VIII

                                              CONCERNING THE TRUSTEE
         SECTION 8.01.     Duties of Trustee..................................................................-124-
         SECTION 8.02.     Certain Matters Affecting the Trustee..............................................-125-
         SECTION 8.03.     Trustee not Liable for Certificates or Mortgage Loans..............................-126-
         SECTION 8.04.     Trustee May Own Certificates.......................................................-126-
         SECTION 8.05.     Trustee's Fees and Expenses........................................................-126-
         SECTION 8.06.     Eligibility Requirements for Trustee...............................................-127-
         SECTION 8.07.     Resignation and Removal of the Trustee.............................................-127-
         SECTION 8.08.     Successor Trustee..................................................................-128-
         SECTION 8.09.     Merger or Consolidation of Trustee.................................................-129-
         SECTION 8.10.     Appointment of Co-Trustee or Separate Trustee......................................-129-
         SECTION 8.11.     Appointment of Office or Agency; Appointment of
                           Custodian..........................................................................-130-
         SECTION 8.12.     Representations and Warranties.....................................................-130-

                                                    ARTICLE IX

                                                    TERMINATION
         SECTION 9.01.     Termination Upon Repurchase or Liquidation of All Mortgage
                           Loans..............................................................................-132-
         SECTION 9.02.     Additional Termination Requirements................................................-134-

                                                     ARTICLE X

                                                 REMIC PROVISIONS
         SECTION 10.01.    REMIC Administration...............................................................-136-
         SECTION 10.02.    Prohibited Transactions and Activities.............................................-138-
         SECTION 10.03.    Servicer and Trustee Indemnification...............................................-139-

                                                       -iii-

<PAGE>

                                                    ARTICLE XI
                                              MISCELLANEOUS PROVISIONS

         SECTION 11.01.             Amendment.................................................................-140-
         SECTION 11.02.             Recordation of Agreement; Counterparts....................................-141-
         SECTION 11.03.             Limitation on Rights of Certificateholders................................-141-
         SECTION 11.04.             Governing Law.............................................................-142-
         SECTION 11.05.             Notices...................................................................-142-
         SECTION 11.06.             Severability of Provisions................................................-143-
         SECTION 11.07.             Notice to Rating Agencies.................................................-143-
         SECTION 11.08.             Article and Section References............................................-144-
         SECTION 11.09.             Grant of Security Interest................................................-144-
         SECTION 11.10              Third Party Rights........................................................-145-
</TABLE>

                                                       -iv-

<PAGE>

Exhibits
--------

Exhibit A-1       Form of Class A-1 Certificate
Exhibit A-3       Form of Class A-3A Certificate
Exhibit A-3       Form of Class A-3B Certificate
Exhibit A-4       Form of Class M-1 Certificate
Exhibit A-5       Form of Class M-2 Certificate
Exhibit A-6       Form of Class M-3 Certificate
Exhibit A-7       Form of Class M-4 Certificate
Exhibit A-8       Form of Class M-5 Certificate
Exhibit A-9       Form of Class M-6 Certificate
Exhibit A-10      Form of Class CE Certificate
Exhibit A-11      Form of Class P Certificate
Exhibit A-12      Form of Class R Certificate
Exhibit A-13      Form of Class R-X Certificate
Exhibit B         [Reserved]
Exhibit C-1       Form of Trustee's Initial Certification
Exhibit C-2       Form of Trustee's Final Certification
Exhibit C-3       Form of Trustee's Receipt of Mortgage Notes
Exhibit D         Form of Mortgage Loan Purchase Agreement
Exhibit E         Request for Release
Exhibit F-1       Form of Transferor Representation Letter and Form of
                  Transferee Representation Letter in Connection with Transfer
                  of the Class CE Certificates, Class P Certificates or Residual
                  Certificates Pursuant to Rule 144A Under the 1933 Act
Exhibit F-2       Form of Transfer Affidavit and Agreement and Form of
                  Transferor Affidavit in Connection with Transfer of Residual
                  Certificates
Exhibit G         Form of Certification with respect to ERISA and the Code
Exhibit H         Form of Report Pursuant to Section 4.06
Exhibit I         Form of Lost Note Affidavit
Exhibit J-1       Form of Certification to Be Provided by the Trustee with Form
                  10-K
Exhibit J-2       Form of Backup Certification to Be Provided by the Servicer
                  with respect to the Form 10-K
Exhibit K         Form of Custodial Agreement
Exhibit L         Annual Statement of Compliance pursuant to Section 3.20

Schedule 1        Mortgage Loan Schedule
Schedule 2        Prepayment Charge Schedule

                                       -v-

<PAGE>

                  This Pooling and Servicing Agreement, is dated and effective
as of September 1, 2003, among MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.
as Depositor, CHASE MANHATTAN MORTGAGE CORPORATION as Servicer and U.S. BANK
NATIONAL ASSOCIATION as Trustee.

                             PRELIMINARY STATEMENT:

                  The Depositor intends to sell pass-through certificates to be
issued hereunder in multiple classes, which in the aggregate will evidence the
entire beneficial ownership interest in each REMIC (as defined herein) created
hereunder. The Trust Fund will consist of a segregated pool of assets comprised
of the Mortgage Loans and certain other related assets subject to this
Agreement.

                                      -vi-

<PAGE>

                                     REMIC I
                                     -------

                  As provided herein, the Trustee will elect to treat the
segregated pool of assets consisting of the Mortgage Loans and certain other
related assets (other than the Servicer Prepayment Charge Payment Amount and the
Net WAC Rate Carryover Reserve Account) subject to this Agreement as a REMIC for
federal income tax purposes, and such segregated pool of assets will be
designated as "REMIC I." The Class R-I Interest will be the sole class of
"residual interests" in REMIC I for purposes of the REMIC Provisions (as defined
herein). The following table irrevocably sets forth the designation, the REMIC I
Remittance Rate, the initial Uncertificated Balance and, solely for purposes of
satisfying Treasury regulation section 1.860G-1(a)(4)(iii), the "latest possible
maturity date" for each of the REMIC I Regular Interests (as defined herein).
None of the REMIC I Regular Interests will be certificated.

<TABLE>
<CAPTION>
                                      REMIC I                          Initial                    Latest Possible
       Designation                Remittance Rate               Uncertificated Balance            Maturity Date(1)
       -----------                ---------------               ----------------------            ----------------
<S>                               <C>                              <C>                              <C>
         I-LTAA                     Variable(2)                    $518,542,040.65                  August 2033
         I-LTA1                     Variable(2)                    $  2,645,315.00                  August 2033
         I-LTA3A                    Variable(2)                    $    851,225.00                  August 2033
         I-LTA3B                    Variable(2)                    $    762,915.00                  August 2033
         I-LTM1                     Variable(2)                    $    383,615.00                  August 2033
         I-LTM2                     Variable(2)                    $    291,020.00                  August 2033
         I-LTM3                     Variable(2)                    $     52,910.00                  August 2033
         I-LTM4                     Variable(2)                    $     66,140.00                  August 2033
         I-LTM5                     Variable(2)                    $     66,140.00                  August 2033
         I-LTM6                     Variable(2)                    $     79,370.00                  August 2033
         I-LTZZ                     Variable(2)                    $  5,383,840.63                  August 2033
          I-LTP                     Variable(2)                    $        100.00                  August 2033
        I-LT1SUB                    Variable(2)                    $     12,815.81                  August 2033
        I-LT1GRP                    Variable(2)                    $     65,722.11                  August 2033
        I-LT2SUB                    Variable(2)                    $      7,820.00                  August 2033
        I-LT2GRP                    Variable(2)                    $     40,102.80                  August 2033
          I-XX                      Variable(2)                    $528,998,070.55                  August 2033
</TABLE>
________________
(1)      Solely for purposes of Section 1.860G-1(a)(4)(iii) of the Treasury
         regulations, the Distribution Date immediately following the maturity
         date for the Mortgage Loan with the latest maturity date has been
         designated as the "latest possible maturity date" for each REMIC I
         Regular Interest.
(2)      Calculated in accordance with the definition of "REMIC I Remittance
         Rate" herein.

                                      -vii-

<PAGE>

                                    REMIC II
                                    --------

                  As provided herein, the Trustee will elect to treat the
segregated pool of assets consisting of the REMIC I Regular Interests as a REMIC
for federal income tax purposes, and such segregated pool of assets will be
designated as "REMIC II." The Class R-II Interest will evidence the sole class
of "residual interests" in REMIC II for purposes of the REMIC Provisions under
federal income tax law. The following table irrevocably sets forth the
designation, the Pass-Through Rate, the initial aggregate Certificate Principal
Balance and, solely for purposes of satisfying Treasury regulation section
1.860G-1(a)(4)(iii), the "latest possible maturity date" for the indicated
Classes of Certificates.

<TABLE>
<CAPTION>
                                                                  Initial Aggregate
                                                                Certificate Principal            Latest Possible
         Designation                Pass-Through Rate                  Balance                    Maturity Date
         -----------                -----------------                  -------                    -------------
<S>                                 <C>                          <C>                               <C>
          Class A-1                    Variable(1)               $529,063,000.00                   August 2033
         Class A-3A                    Variable(1)               $170,245,000.00                   March 2020
         Class A-3B                    Variable(1)               $152,583,000.00                   August 2033
          Class M-1                    Variable(1)               $ 76,723,000.00                   August 2033
          Class M-2                    Variable(1)               $ 58,204,000.00                   August 2033
          Class M-3                    Variable(1)               $ 10,582,000.00                   August 2033
          Class M-4                    Variable(1)               $ 13,228,000.00                   August 2033
          Class M-5                    Variable(1)               $ 13,228,000.00                   August 2033
          Class M-6                    Variable(1)               $ 15,874,000.00                   August 2033
      Class CE Interest                Variable(2)               $ 18,519,062.56                   August 2033
      Class P Interest                   N/A(3)                  $        100.00                   August 2033
</TABLE>
_______________
(1)  Calculated in accordance with the definition of "Pass-Through Rate" herein.
(2)  The Class CE Interest will accrue interest at its variable Pass-Through
     Rate on the Notional Amount of the Class CE Interest outstanding from time
     to time which shall equal the Uncertificated Balance of the REMIC I Regular
     Interests. The Class CE Interest will not accrue interest on its
     Uncertificated Balance.
(3)  The Class P Interest will not accrue interest.

                                     -viii-

<PAGE>

                                    REMIC III

                  As provided herein, the Trustee shall make an election to
treat the segregated pool of assets consisting of the Class CE Interest as a
REMIC for federal income tax purposes, and such segregated pool of assets will
be designated as "REMIC III." The Class R-III Interest represents the sole class
of "residual interests" in REMIC III for purposes of the REMIC Provisions.

                  The following table sets forth (or describes) the Class
designation, Pass-Through Rate and Original Class Certificate Principal Balance
for the indicated Class of Certificates that represents a "regular interest" in
REMIC III created hereunder:

<TABLE>
<CAPTION>
                                                                  Initial Aggregate
                                                                Certificate Principal            Latest Possible
      Class Designation             Pass-Through Rate                  Balance                  Maturity Date(1)
      -----------------             -----------------                  -------                  ----------------
<S>                                 <C>                            <C>                             <C>
    Class CE Certificates              Variable(2)                 $18,519,062.56                  August 2033
</TABLE>
_______________
(1)  Solely for purposes of Section 1.860G-1(a)(4)(iii) of the Treasury
     regulations, the Distribution Date immediately following the maturity date
     for the Mortgage Loans with the latest maturity date has been designated as
     the "latest possible maturity date" for the Class CE Certificates.
(2)  The Class CE Certificates will receive 100% of amounts received in respect
     of the Class CE Interest.

                                      -ix-

<PAGE>

                                    REMIC IV
                                    --------

                  As provided herein, the Trustee shall make an election to
treat the segregated pool of assets consisting of the Class P Interest as a
REMIC for federal income tax purposes, and such segregated pool of assets will
be designated as "REMIC IV." The Class R-IV Interest represents the sole class
of "residual interests" in REMIC IV for purposes of the REMIC Provisions.

                  The following table sets forth (or describes) the Class
designation, Pass-Through Rate and Original Class Certificate Principal Balance
for the indicated Class of Certificates that represents a "regular interest" in
REMIC IV created hereunder:

<TABLE>
<CAPTION>
                                                                  Initial Aggregate
                                                                Certificate Principal            Latest Possible
      Class Designation             Pass-Through Rate                  Balance                  Maturity Date(1)
      -----------------             -----------------                  -------                  ----------------
<S>                                 <C>                         <C>                             <C>
    Class P Certificates               Variable(2)                     $100.00                     August 2033
</TABLE>
_______________
(1)  Solely for purposes of Section 1.860G-1(a)(4)(iii) of the Treasury
     regulations, the Distribution Date immediately following the maturity date
     for the Mortgage Loans with the latest maturity date has been designated as
     the "latest possible maturity date" for the Class P Certificates.
(2)  The Class P Certificates will receive 100% of amounts received in respect
     of the Class P Interest.

                  As of the Cut-off Date, the Mortgage Loans had an aggregate
Principal Balance equal to $1,058,249,162.56.

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

<PAGE>

                                    ARTICLE I

                                   DEFINITIONS

                  SECTION 1.01. Defined Terms.

                  Whenever used in this Agreement, including, without
limitation, in the Preliminary Statement hereto, the following words and
phrases, unless the context otherwise requires, shall have the meanings
specified in this Article. Unless otherwise specified, all calculations
described herein shall be made on the basis of a 360-day year consisting of
twelve 30-day months.

                  "Accrual Period": With respect to the Class A Certificates and
the Mezzanine Certificates and each Distribution Date, the period commencing on
the preceding Distribution Date (or in the case of the first such Accrual
Period, commencing on the Closing Date) and ending on the day preceding the
current Distribution Date. With respect to the Class CE Certificates and the
REMIC I Regular Interests and each Distribution Date, the calendar month prior
to the month of such Distribution Date.

                  "Adjustable-Rate Mortgage Loan": Each of the Mortgage Loans
identified in the Mortgage Loan Schedule as having a Mortgage Rate that is
subject to adjustment.

                  "Adjusted Net Maximum Mortgage Rate": With respect to any
Mortgage Loan (or the related REO Property), as of any date of determination, a
per annum rate of interest equal to the applicable Maximum Mortgage Rate for
such Mortgage Loan (or the Mortgage Rate in the case of any Fixed-Rate Mortgage
Loan) as of the first day of the month preceding the month in which the related
Distribution Date occurs minus the sum of (i) the Trustee Fee Rate and (ii) the
Servicing Fee Rate.

                  "Adjusted Net Mortgage Rate": With respect to any Mortgage
Loan (or the related REO Property), as of any date of determination, a per annum
rate of interest equal to the applicable Mortgage Rate for such Mortgage Loan as
of the first day of the month preceding the month in which the related
Distribution Date occurs minus the sum of (i) the Trustee Fee Rate and (ii) the
Servicing Fee Rate.

                  "Adjustment Date": With respect to each Adjustable-Rate
Mortgage Loan, the first day of the month in which the Mortgage Rate of such
Mortgage Loan changes pursuant to the related Mortgage Note. The first
Adjustment Date following the Cut-off Date as to each Adjustable-Rate Mortgage
Loan is set forth in the Mortgage Loan Schedule.

                  "Advance": As to any Mortgage Loan or REO Property, any
advance made by the Servicer in respect of any Distribution Date pursuant to
Section 4.03.

                  "Advance Facility": As defined in Section 3.29 hereof.

                  "Advancing Person": As defined in Section 3.29 hereof.

                                       -2-

<PAGE>

                  "Affiliate": With respect to any specified Person, any other
Person controlling or controlled by or under common control with such specified
Person. For the purposes of this definition, "control" when used with respect to
any specified Person 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.

                  "Aggregate Loss Severity 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 on any Mortgage Loans
from the Cut-off Date to the last day of the preceding calendar month and the
denominator of which is the aggregate principal balance of such Mortgage Loans
immediately prior to the liquidation of such Mortgage Loans.

                  "Agreement": This Pooling and Servicing Agreement and all
amendments hereof and supplements hereto.

                  "Allocated Realized Loss Amount": With respect to any
Distribution Date and any Class of Mezzanine Certificates, the sum of (i) any
Realized Losses allocated to such Class of Certificates on such Distribution
Date and (ii) the amount of any Allocated Realized Loss Amount for such Class of
Certificates remaining unpaid from the previous Distribution Date.

                  "Assignment": An assignment of Mortgage, notice of transfer or
equivalent instrument, in recordable form (excepting therefrom, if applicable,
the mortgage recordation information which has not been required pursuant to
Section 2.01 hereof or returned by the applicable recorder's office), which is
sufficient under the laws of the jurisdiction wherein the related Mortgaged
Property is located to reflect of record the sale of the Mortgage, which
assignment, notice of transfer or equivalent instrument may be in the form of
one or more blanket assignments covering Mortgages secured by Mortgaged
Properties located in the same county, if permitted by law.

                  "Available Funds": With respect to any Distribution Date, an
amount equal to the excess of (i) the sum of (a) the aggregate of the related
Monthly Payments received on the Mortgage Loans on or prior to the related
Determination Date, (b) Net Liquidation Proceeds, Insurance Proceeds, Principal
Prepayments, proceeds from repurchases of and substitutions for such Mortgage
Loans and other unscheduled recoveries of principal and interest in respect of
the Mortgage Loans received during the related Prepayment Period, (c) the
aggregate of any amounts received in respect of a related REO Property withdrawn
from any REO Account and deposited in the Collection Account for such
Distribution Date, (d) the aggregate of any amounts deposited in the Collection
Account by the Servicer in respect of related Prepayment Interest Shortfalls for
such Distribution Date, (e) the aggregate of any Advances made by the Servicer
for such Distribution Date in respect of the Mortgage Loans and (f) the
aggregate of any related advances made by the Trustee in respect of the Mortgage
Loans for such Distribution Date pursuant to Section 7.02 over (ii) the sum of
(a) amounts reimbursable or payable to the Servicer pursuant to Section 3.11(a),
(b) Extraordinary Trust Fund Expenses reimbursable to the Trustee pursuant to
Section 3.11(b), (c) amounts deposited in the Collection Account or the
Distribution Account pursuant to clauses (a) through (f) above, as the case may
be, in error, (d) the amount of any Prepayment Charges collected by the Servicer
in connection with the full or partial prepayment of any of the Mortgage Loans
and any Servicer

                                       -3-

<PAGE>

Prepayment Charge Payment Amount and (e) the Trustee Fee and any indemnification
amounts owed to the Trustee payable from the Distribution Account pursuant to
Section 8.05.

                  "Balloon Mortgage Loan": A Mortgage Loan that provides for the
payment of the unamortized principal balance of such Mortgage Loan in a single
payment at the maturity of such Mortgage Loan that is substantially greater than
the preceding monthly payment.

                  "Balloon Payment": A payment of the unamortized principal
balance of a Mortgage Loan in a single payment at the maturity of such Mortgage
Loan that is substantially greater than the preceding Monthly Payment.

                  "Bankruptcy Code": The Bankruptcy Reform Act of 1978 (Title 11
of the United States Code), as amended.

                  "Book-Entry Certificate": The Class A Certificates and the
Mezzanine Certificates for so long as the Certificates of such Class shall be
registered in the name of the Depository or its nominee.

                  "Book-Entry Custodian": The custodian appointed pursuant to
Section 5.01.

                  "Business Day": Any day other than a Saturday, a Sunday or a
day on which banking or savings and loan institutions in the State of
California, the State of New York, the Commonwealth of Pennsylvania, or in the
cities in which the Corporate Trust Office of the Trustee is located, are
authorized or obligated by law or executive order to be closed.

                  "Certificate": Any one of the Mortgage Pass-Through
Certificates, Series 2003- WMC2, Class A-1, Class A-3A, Class A-3B, Class M-1,
Class M-2, Class M-3, Class M-4, Class M-5, Class M-6, Class CE, Class P or
Class R, issued under this Agreement.

                  "Certificate Factor": With respect to any Class of Regular
Certificates as of any Distribution Date, a fraction, expressed as a decimal
carried to six places, the numerator of which is the aggregate Certificate
Principal Balance (or the Notional Amount, in the case of the Class CE
Certificates) of such Class of Certificates on such Distribution Date (after
giving effect to any distributions of principal and allocations of Realized
Losses in reduction of the Certificate Principal Balance (or the Notional
Amount, in the case of the Class CE Certificates) of such Class of Certificates
to be made on such Distribution Date), and the denominator of which is the
initial aggregate Certificate Principal Balance (or the Notional Amount, in the
case of the Class CE Certificates) of such Class of Certificates as of the
Closing Date.

                  "Certificate Margin": With respect to the Class A-1
Certificates and REMIC I Regular Interest I-LTA1, 0.343% in the case of each
Distribution Date through and including the Distribution Date on which the
aggregate Principal Balance of the Mortgage Loans (and properties acquired in
respect thereof) remaining in the Trust Fund is reduced to less than 10% of the
aggregate Cut-off Date Principal Balance of the Mortgage Loans and 0.686% in the
case of each Distribution Date thereafter.

                                       -4-

<PAGE>

                  With respect to the Class A-3A Certificates and REMIC I
Regular Interest I-LTA3A, 0.150% in the case of each Distribution Date through
and including the Distribution Date on which the aggregate Principal Balance of
the Mortgage Loans (and properties acquired in respect thereof) remaining in the
Trust Fund is reduced to less than 10% of the aggregate Cut-off Date Principal
Balance of the Mortgage Loans and 0.150% in the case of each Distribution Date
thereafter.

                  With respect to the Class A-3B Certificates and REMIC I
Regular Interest I-LTA3B, 0.440% in the case of each Distribution Date through
and including the Distribution Date on which the aggregate Principal Balance of
the Mortgage Loans (and properties acquired in respect thereof) remaining in the
Trust Fund is reduced to less than 10% of the aggregate Cut-off Date Principal
Balance of the Mortgage Loans and 0.880% in the case of each Distribution Date
thereafter.

                  With respect to the Class M-1 Certificates and REMIC I Regular
Interest I-LTM1, 0.700% in the case of each Distribution Date through and
including the Distribution Date on which the aggregate Principal Balance of the
Mortgage Loans (and properties acquired in respect thereof) remaining in the
Trust Fund is reduced to less than 10% of the aggregate Cut-off Date Principal
Balance of the Mortgage Loans and 1.050% in the case of each Distribution Date
thereafter.

                  With respect to the Class M-2 Certificates and REMIC I Regular
Interest I-LTM2, 1.650% in the case of each Distribution Date through and
including the Distribution Date on which the aggregate Principal Balance of the
Mortgage Loans (and properties acquired in respect thereof) remaining in the
Trust Fund is reduced to less than 10% of the aggregate Cut-off Date Principal
Balance of the Mortgage Loans and 2.475% in the case of each Distribution Date
thereafter.

                  With respect to the Class M-3 Certificates and REMIC I Regular
Interest I-LTM3, 2.000% in the case of each Distribution Date through and
including the Distribution Date on which the aggregate Principal Balance of the
Mortgage Loans (and properties acquired in respect thereof) remaining in the
Trust Fund is reduced to less than 10% of the aggregate Cut-off Date Principal
Balance of the Mortgage Loans and 3.000% in the case of each Distribution Date
thereafter.

                  With respect to the Class M-4 Certificates and REMIC I Regular
Interest I-LTM4, 3.200% in the case of each Distribution Date through and
including the Distribution Date on which the aggregate Principal Balance of the
Mortgage Loans (and properties acquired in respect thereof) remaining in the
Trust Fund is reduced to less than 10% of the aggregate Cut-off Date Principal
Balance of the Mortgage Loans and 4.800% in the case of each Distribution Date
thereafter.

                  With respect to the Class M-5 Certificates and REMIC I Regular
Interest I-LTM5, 4.000% in the case of each Distribution Date through and
including the Distribution Date on which the aggregate Principal Balance of the
Mortgage Loans (and properties acquired in respect thereof) remaining in the
Trust Fund is reduced to less than 10% of the aggregate Cut-off Date Principal
Balance of the Mortgage Loans and 6.000% in the case of each Distribution Date
thereafter.

                  With respect to the Class M-6 Certificates and REMIC I Regular
Interest I-LTM6, 4.000% in the case of each Distribution Date through and
including the Distribution Date on which the aggregate Principal Balance of the
Mortgage Loans (and properties acquired in respect thereof) remaining in the
Trust Fund is reduced to less than 10% of the aggregate Cut-off Date Principal

                                       -5-

<PAGE>

Balance of the Mortgage Loans and 6.000% in the case of each Distribution Date
thereafter.

                  "Certificateholder" or "Holder": The Person in whose name a
Certificate is registered in the Certificate Register, except that a
Disqualified Organization or a Non-United States Person shall not be a Holder of
a Residual Certificate for any purposes hereof and, solely for the purposes of
giving any consent pursuant to this Agreement, any Certificate registered in the
name of the Depositor or the Servicer or any Affiliate thereof shall be deemed
not to be outstanding and the Voting Rights to which it is entitled shall not be
taken into account in determining whether the requisite percentage of Voting
Rights necessary to effect any such consent has been obtained, except as
otherwise provided in Section 11.01. The Trustee and the NIMS Insurer may
conclusively rely upon a certificate of the Depositor or the Servicer in
determining whether a Certificate is held by an Affiliate thereof. All
references herein to "Holders" or "Certificateholders" shall reflect the rights
of Certificate Owners as they may indirectly exercise such rights through the
Depository and participating members thereof, except as otherwise specified
herein; provided, however, that the Trustee and the NIMS Insurer shall be
required to recognize as a "Holder" or "Certificateholder" only the Person in
whose name a Certificate is registered in the Certificate Register.

                  "Certificate Owner": With respect to a Book-Entry Certificate,
the Person who is the beneficial owner of such Certificate as reflected on the
books of the Depository or on the books of a Depository Participant or on the
books of an indirect participating brokerage firm for which a Depository
Participant acts as agent.

                  "Certificate Principal Balance": With respect to each Class A
Certificate, Mezzanine Certificate or Class P Certificate as of any date of
determination, the Certificate Principal Balance of such Certificate on the
Distribution Date immediately prior to such date of determination, minus all
distributions allocable to principal made thereon and Realized Losses allocated
thereto on such immediately prior Distribution Date (or, in the case of any date
of determination up to and including the first Distribution Date, the initial
Certificate Principal Balance of such Certificate, as stated on the face
thereof). With respect to each Class CE Certificate as of any date of
determination, an amount equal to the Percentage Interest evidenced by such
Certificate times the excess, if any, of (A) the then aggregate Uncertificated
Balances of the REMIC I Regular Interests over (B) the then aggregate
Certificate Principal Balances of the Class A Certificates, the Mezzanine
Certificates and the Class P Certificates then outstanding.

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

                  "Class": Collectively, all of the Certificates bearing the
same class designation.

                  "Class A Certificates": Any Class A-1 Certificate, Class A-3A
Certificate or Class A-3B Certificate.

                  "Class A Principal Distribution Amount": With respect to any
Distribution Date, the sum of (i) the Class A-1 Principal Distribution Amount
and (ii) the Class A-3 Principal Distribution Amount.

                  "Class A-1 Allocation Percentage": With respect to any
Distribution Date, the

                                       -6-

<PAGE>

percentage equivalent of a fraction, the numerator of which is (i) the Group I
Principal Remittance Amount for such Distribution Date, and the denominator of
which is (ii) the Principal Remittance Amount for such Distribution Date.

                  "Class A-1 Certificate": Any one of the Class A-1 Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-1 and evidencing a Regular Interest in REMIC II for
purposes of the REMIC Provisions.

                  "Class A-1 Principal Distribution Amount": The excess of (x)
the Certificate Principal Balance of the Class A-1 Certificates immediately
prior to such Distribution Date over (y) the lesser of (A) the product of (i)
61.00% and (ii) the aggregate Stated Principal Balance of the Group I Mortgage
Loans as of the last day of the related Due Period (after giving effect to
scheduled payments of principal due during the related Due Period, to the extent
received or advanced, and unscheduled collections of principal received during
the related Prepayment Period) and (B) the aggregate Stated Principal Balance of
the Group I Mortgage Loans as of the last day of the related Due Period (after
giving effect to scheduled payments of principal due during the related Due
Period, to the extent received or advanced, and unscheduled collections of
principal received during the related Prepayment Period) minus $3,286,106.

                  "Class A-3 Allocation Percentage": With respect to any
Distribution Date, the percentage equivalent of a fraction, the numerator of
which is (i) the Group II Principal Remittance Amount for such Distribution
Date, and the denominator of which is (ii) the Principal Remittance Amount for
such Distribution Date.

                  "Class A-3 Certificates": Any Class A-3A Certificate or Class
A-3B Certificate.

                  "Class A-3A Certificate": Any one of the Class A-3A
Certificates executed, authenticated and delivered by the Trustee, substantially
in the form annexed hereto as Exhibit A-3 and evidencing a Regular Interest in
REMIC II for purposes of the REMIC Provisions.

                  "Class A-3B Certificate": Any one of the Class A-3B
Certificates executed, authenticated and delivered by the Trustee, substantially
in the form annexed hereto as Exhibit A-3 and evidencing a Regular Interest in
REMIC II for purposes of the REMIC Provisions.

                  "Class A-3 Principal Distribution Amount": The excess of (x)
the aggregate Certificate Principal Balances of the Class A-3A Certificates and
the Class A-3B Certificates immediately prior to such Distribution Date over (y)
the lesser of (A) the product of (i) 61.00% and (ii) the aggregate Stated
Principal Balance of the Group II Mortgage Loans as of the last day of the
related Due Period (after giving effect to scheduled payments of principal due
during the related Due Period, to the extent received or advanced, and
unscheduled collections of principal received during the related Prepayment
Period) and (B) the aggregate Stated Principal Balance of the Group II Mortgage
Loans as of the last day of the related Due Period (after giving effect to
scheduled payments of principal due during the related Due Period, to the extent
received or advanced, and unscheduled collections of principal received during
the related Prepayment Period) minus $2,005,140.

                                       -7-

<PAGE>

                  "Class CE Certificate": Any one of the Class CE Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-10 and evidencing a Regular Interest in REMIC III
for purposes of the REMIC Provisions.

                  "Class CE Interest": An uncertificated interest in the Trust
Fund held by the Trustee on behalf of the Holders of the Class CE Certificates,
evidencing a Regular Interest in REMIC II for purposes of the REMIC Provisions.

                  "Class M-1 Certificate": Any one of the Class M-1 Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-4 and evidencing a Regular Interest in REMIC II for
purposes of the REMIC Provisions.

                  "Class M-1 Principal Distribution Amount": The excess of (x)
the sum of (i) the Certificate Principal Balance of the Class A Certificates
(after taking into account the distribution of the Class A Principal
Distribution Amount on such Distribution Date) and (ii) the Certificate
Principal Balance of the Class M-1 Certificates immediately prior to such
Distribution Date over (y) the lesser of (A) the product of (i) 75.50% and (ii)
the aggregate Stated Principal Balance of the Mortgage Loans as of the last day
of the related Due Period (after giving effect to scheduled payments of
principal due during the related Due Period, to the extent received or advanced,
and unscheduled collections of principal received during the related Prepayment
Period) and (B) the aggregate Stated Principal Balance of the Mortgage Loans as
of the last day of the related Due Period (after giving effect to scheduled
payments of principal due during the related Due Period, to the extent received
or advanced, and unscheduled collections of principal received during the
related Prepayment Period) minus $5,291,246.

                  "Class M-2 Certificate": Any one of the Class M-2 Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-5 and evidencing a Regular Interest in REMIC II for
purposes of the REMIC Provisions.

                  "Class M-2 Principal Distribution Amount": The excess of (x)
the sum of (i) the Certificate Principal Balance of the Class A Certificates
(after taking into account the distribution of the Class A Principal
Distribution Amount on such Distribution Date), (ii) the Certificate Principal
Balance of the Class M-1 Certificates (after taking into account the
distribution of the Class M-1 Principal Distribution Amount on such Distribution
Date) and (iii) the Certificate Principal Balance of the Class M-2 Certificates
immediately prior to such Distribution Date over (y) the lesser of (A) the
product of (i) 86.50% and (ii) the aggregate Stated Principal Balance of the
Mortgage Loans as of the last day of the related Due Period (after giving effect
to scheduled payments of principal due during the related Due Period, to the
extent received or advanced, and unscheduled collections of principal received
during the related Prepayment Period) and (B) the aggregate Stated Principal
Balance of the Mortgage Loans as of the last day of the related Due Period
(after giving effect to scheduled payments of principal due during the related
Due Period, to the extent received or advanced, and unscheduled collections of
principal received during the related Prepayment Period) minus $5,291,246.

                  "Class M-3 Certificate": Any one of the Class M-3 Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-6

                                       -8-

<PAGE>

and evidencing a Regular Interest in REMIC II for purposes of the REMIC
Provisions.

                  "Class M-3 Principal Distribution Amount": With respect to any
Distribution Date, the excess of (x) the sum of (i) the Certificate Principal
Balance of the Class A Certificates (after taking into account the distribution
of the Class A Principal Distribution Amount on such Distribution Date), (ii)
the Certificate Principal Balance of the Class M-1 Certificates (after taking
into account the distribution of the Class M-1 Principal Distribution Amount on
such Distribution Date), (iii) the Certificate Principal Balance of the Class
M-2 Certificates (after taking into account the distribution of the Class M-2
Principal Distribution Amount on such Distribution Date) and (iv) the
Certificate Principal Balance of the Class M-3 Certificates immediately prior to
such Distribution Date over (y) the lesser of (A) the product of (i) 88.50% and
(ii) the aggregate Stated Principal Balance of the Mortgage Loans as of the last
day of the related Due Period (after giving effect to scheduled payments of
principal due during the related Due Period, to the extent received or advanced,
and unscheduled collections of principal received during the related Prepayment
Period) and (B) the aggregate Stated Principal Balance of the Mortgage Loans as
of the last day of the related Due Period (after giving effect to scheduled
payments of principal due during the related Due Period, to the extent received
or advanced, and unscheduled collections of principal received during the
related Prepayment Period) minus $5,291,246.

                  "Class M-4 Certificate": Any one of the Class M-4 Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-7 and evidencing a Regular Interest in REMIC II for
purposes of the REMIC Provisions.

                  "Class M-4 Principal Distribution Amount": With respect to any
Distribution Date, the excess of (x) the sum of (i) the Certificate Principal
Balance of the Class A Certificates (after taking into account the distribution
of the Class A Principal Distribution Amount on such Distribution Date), (ii)
the Certificate Principal Balance of the Class M-1 Certificates (after taking
into account the distribution of the Class M-1 Principal Distribution Amount on
such Distribution Date), (iii) the Certificate Principal Balance of the Class
M-2 Certificates (after taking into account the distribution of the Class M-2
Principal Distribution Amount on such Distribution Date), (iv) the Certificate
Principal Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount on such Distribution
Date) and (v) the Certificate Principal Balance of the Class M-4 Certificates
immediately prior to such Distribution Date over (y) the lesser of (A) the
product of (i) 91.00% and (ii) the aggregate Stated Principal Balance of the
Mortgage Loans as of the last day of the related Due Period (after giving effect
to scheduled payments of principal due during the related Due Period, to the
extent received or advanced, and unscheduled collections of principal received
during the related Prepayment Period) and (B) the aggregate Stated Principal
Balance of the Mortgage Loans as of the last day of the related Due Period
(after giving effect to scheduled payments of principal due during the related
Due Period, to the extent received or advanced, and unscheduled collections of
principal received during the related Prepayment Period) minus $5,291,246.

                  "Class M-5 Certificate": Any one of the Class M-5 Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-8 and evidencing a Regular Interest in REMIC II for
purposes of the REMIC Provisions.

                                       -9-

<PAGE>

                  "Class M-5 Principal Distribution Amount": With respect to any
Distribution Date, the excess of (x) the sum of (i) the Certificate Principal
Balance of the Class A Certificates (after taking into account the distribution
of the Class A Principal Distribution Amount on such Distribution Date), (ii)
the Certificate Principal Balance of the Class M-1 Certificates (after taking
into account the distribution of the Class M-1 Principal Distribution Amount on
such Distribution Date), (iii) the Certificate Principal Balance of the Class
M-2 Certificates (after taking into account the distribution of the Class M-2
Principal Distribution Amount on such Distribution Date), (iv) the Certificate
Principal Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount on such Distribution
Date), (v) the Certificate Principal Balance of the Class M-4 Certificates
(after taking into account the distribution of the Class M-4 Principal
Distribution Amount on such Distribution Date) and (vi) the Certificate
Principal Balance of the Class M-5 Certificates immediately prior to such
Distribution Date over (y) the lesser of (A) the product of (i) 93.50% and (ii)
the aggregate Stated Principal Balance of the Mortgage Loans as of the last day
of the related Due Period (after giving effect to scheduled payments of
principal due during the related Due Period, to the extent received or advanced,
and unscheduled collections of principal received during the related Prepayment
Period) and (B) the aggregate Stated Principal Balance of the Mortgage Loans as
of the last day of the related Due Period (after giving effect to scheduled
payments of principal due during the related Due Period, to the extent received
or advanced, and unscheduled collections of principal received during the
related Prepayment Period) minus $5,291,246.

                  "Class M-6 Principal Distribution Amount": With respect to any
Distribution Date, the excess of (x) the sum of (i) the Certificate Principal
Balance of the Class A Certificates (after taking into account the distribution
of the Class A Principal Distribution Amount on such Distribution Date), (ii)
the Certificate Principal Balance of the Class M-1 Certificates (after taking
into account the distribution of the Class M-1 Principal Distribution Amount on
such Distribution Date), (iii) the Certificate Principal Balance of the Class
M-2 Certificates (after taking into account the distribution of the Class M-2
Principal Distribution Amount on such Distribution Date), (iv) the Certificate
Principal Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount on such Distribution
Date), (v) the Certificate Principal Balance of the Class M-4 Certificates
(after taking into account the distribution of the Class M-4 Principal
Distribution Amount on such Distribution Date) and (vi) the Certificate
Principal Balance of the Class M-6 Certificates immediately prior to such
Distribution Date over (y) the lesser of (A) the product of (i) 96.50% and (ii)
the aggregate Stated Principal Balance of the Mortgage Loans as of the last day
of the related Due Period (after giving effect to scheduled payments of
principal due during the related Due Period, to the extent received or advanced,
and unscheduled collections of principal received during the related Prepayment
Period) and (B) the aggregate Stated Principal Balance of the Mortgage Loans as
of the last day of the related Due Period (after giving effect to scheduled
payments of principal due during the related Due Period, to the extent received
or advanced, and unscheduled collections of principal received during the
related Prepayment Period) minus $5,291,246.

                  "Class M-6 Certificate": Any one of the Class M-6 Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-9 and evidencing a Regular Interest in REMIC II for
purposes of the REMIC Provisions.

                                      -10-

<PAGE>

                  "Class P Certificate": Any one of the Class P Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-11 and evidencing a Regular Interest in REMIC IV for
purposes of the REMIC Provisions.

                  "Class P Interest": An uncertificated interest in the Trust
Fund held by the Trustee on behalf of the Holders of the Class P Certificates,
evidencing a Regular Interest in REMIC II for purposes of the REMIC Provisions.

                  "Class R Certificate": Any one of the Class R Certificates
executed, authenticated and delivered by the Trustee, substantially in the form
annexed hereto as Exhibit A-12 and evidencing the ownership of the Class R-I
Interest and the Class R-II Interest.

                  "Class R-X Certificate": The Class R-X Certificate executed,
authenticated and delivered by the Trustee, substantially in the form annexed
hereto as Exhibit A-13 and evidencing the ownership of the Class R-III Interest
and the Class R-IV Interest.

                  "Class R-I Interest": The uncertificated Residual Interest in
REMIC I.

                  "Class R-II Interest": The uncertificated Residual Interest in
REMIC II.

                  "Class R-III Interest": The uncertificated Residual Interest
in REMIC III.

                  "Class R-IV Interest": The uncertificated Residual Interest in
REMIC IV.

                  "Closing Date": September 30, 2003.

                  "Code": The Internal Revenue Code of 1986.

                  "Collection Account": The account or accounts created and
maintained, or caused to be created and maintained, by the Servicer pursuant to
Section 3.10(a), which shall be entitled "Chase Manhattan Mortgage Corporation,
as Servicer for U.S. Bank National Association, as Trustee, in trust for the
registered holders of MASTR Asset Backed Securities Trust 2003-WMC2, Mortgage
Pass-Through Certificates." The Collection Account must be an Eligible Account.

                  "Commission":  The Securities and Exchange Commission.

                  "Compensating Interest":  As defined in Section 3.24 hereof.

                  "Corporate Trust Office": The principal corporate trust office
of the Trustee at which at any particular time its corporate trust business in
connection with this Agreement shall be administered, which office, at the date
of the execution of this instrument is located at 60 Livingston Avenue, St.
Paul, Minnesota 55107, or at such other address as the Trustee may designate
from time to time by notice to the Certificateholders, the Depositor and the
Servicer.

                  "Corresponding Certificate": With respect to (i) REMIC I
Regular Interest I-LTA1, (ii) REMIC I Regular Interest I-LTA3A, (iii) REMIC I
Regular Interest I-LTA3B, (iv) REMIC I

                                      -11-

<PAGE>

Regular Interest I-LTM1, (v) REMIC I Regular Interest I-LTM2, (vi) REMIC I
Regular Interest I- LTM3, (vii) REMIC I Regular Interest I-LTM4, (viii) REMIC I
Regular Interest I-LTM5, (ix) REMIC I Regular Interest I-LTM6 (x) the Class CE
Interest and (xi) REMIC I Regular Interest I-LTP and the Class P Interest, (i)
the Class A-1 Certificates, (ii) the Class A-3A Certificates, (iii) the Class
A-3B Certificates, (iv) the Class M-1 Certificates, (v) the Class M-2
Certificates, (vi) the Class M-3 Certificates, (vii) the Class M-4 Certificates,
(viii) the Class M-5 Certificates, (ix) the Class M-6 Certificates, (x) the
Class CE Certificates and (xi) the Class P Certificates, respectively.

                  "Credit Enhancement Percentage": For any Distribution Date,
the percentage equivalent of a fraction, the numerator of which is the sum of
the aggregate Certificate Principal Balances of the Mezzanine Certificates and
the Class CE Certificates, and the denominator of which is the aggregate Stated
Principal Balance of the Mortgage Loans, calculated prior to taking into account
distributions of principal on the Mortgage Loans and distribution of the Group I
Principal Distribution Amount and the Group II Principal Distribution Amount to
the Certificates then entitled to distributions of principal on such
Distribution Date.

                  "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 to the last
day of the preceding calendar month and the denominator of which is the sum of
the aggregate Stated Principal Balance of the Mortgage Loans as of the Cut-off
Date.

                  "Custodial Agreement": The custodial agreement, dated
September 1, 2003, entered into among the Trustee, the Custodian and the
Servicer in the form of Exhibit K attached hereto.

                  "Custodian": Wells Fargo Bank Minnesota, National Association,
a national banking association, or its successor in interest as Custodian
pursuant to the Custodial Agreement.

                  "Cut-off Date": With respect to each Original Mortgage Loan,
September 1, 2003. With respect to all Qualified Substitute Mortgage Loans,
their respective dates of substitution. References herein to the "Cut-off Date,"
when used with respect to more than one Mortgage Loan, shall be to the
respective Cut-off Dates for such Mortgage Loans.

                  "Cut-off Date Principal Balance": With respect to any Mortgage
Loan, the unpaid principal balance thereof as of the Cut-off Date of such
Mortgage Loan (or as of the applicable date of substitution with respect to a
Qualified Substitute Mortgage Loan), after giving effect to scheduled payments
due on or before the Cut-off Date, whether or not received.

                  "Debt Service Reduction": With respect to any Mortgage Loan, a
reduction in the scheduled Monthly Payment for such Mortgage Loan by a court of
competent jurisdiction in a proceeding under the Bankruptcy Code, except such a
reduction resulting from a Deficient Valuation.

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

                                      -12-

<PAGE>

                  "Definitive Certificates": As defined in Section 5.01(b).

                  "Deleted Mortgage Loan": A Mortgage Loan replaced or to be
replaced by a Qualified Substitute Mortgage Loan.

                  "Delinquency Percentage": As of the last day of the related
Due Period, the percentage equivalent of a fraction, the numerator of which is
the aggregate Stated Principal Balance of all Mortgage Loans that, as of the
last day of the previous calendar month, are 60 or more days delinquent, are in
foreclosure, have been converted to REO Properties or have been discharged by
reason of bankruptcy, and the denominator of which is the aggregate Stated
Principal Balance of the Mortgage Loans and REO Properties as of the last day of
the previous calendar month.

                  "Depositor": Mortgage Asset Securitization Transactions, Inc.,
a Delaware corporation, or its successor in interest.

                  "Depository": The Depository Trust Company, or any successor
Depository hereafter named. The nominee of the initial Depository, for purposes
of registering those Certificates that are to be Book-Entry Certificates, is
CEDE & Co. The Depository shall at all times be a "clearing corporation" as
defined in Section 8-102(3) of the Uniform Commercial Code of the State of New
York and a "clearing agency" registered pursuant to the provisions of Section
17A of the Securities Exchange Act of 1934, as amended.

                  "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 any Distribution Date,
the 15th day of the calendar month in which such Distribution Date occurs or, if
such 15th day is not a Business Day, the Business Day immediately preceding such
15th day.

                  "Directly Operate": With respect to any REO Property, the
furnishing or rendering of services to the tenants thereof, the management or
operation of such REO Property, the holding of such REO Property primarily for
sale to customers, the performance of any construction work thereon or any use
of such REO Property in a trade or business conducted by REMIC I other than
through an Independent Contractor; provided, however, that the Trustee (or the
Servicer on behalf of the Trustee) shall not be considered to Directly Operate
an REO Property solely because the Trustee (or the Servicer on behalf of the
Trustee) establishes rental terms, chooses tenants, enters into or renews
leases, deals with taxes and insurance, or makes decisions as to repairs or
capital expenditures with respect to such REO Property.

                  "Disqualified Organization": Any of the following: (i) the
United States, any State or political subdivision thereof, any possession of the
United States, or any agency or instrumentality of any of the foregoing (other
than an instrumentality which is a corporation if all of its activities are
subject to tax and, except for Freddie Mac, a majority of its board of directors
is not selected by such governmental unit), (ii) any foreign government, any
international organization, or any agency or instrumentality of any of the
foregoing, (iii) any organization (other than certain

                                      -13-

<PAGE>

farmers'cooperatives described in Section 521 of the Code) which is exempt from
the tax imposed by Chapter 1 of the Code (including the tax imposed by Section
511 of the Code on unrelated business taxable income), (iv) rural electric and
telephone cooperatives described in Section 1381(a)(2)(C) of the Code, (v) an
"electing large partnership" and (vi) any other Person so designated by the
Trustee based upon an Opinion of Counsel that the holding of an Ownership
Interest in a Residual Certificate by such Person may cause any of REMIC I or
REMIC II or any Person having an Ownership Interest in any Class of Certificates
(other than such Person) to incur a liability for any federal tax imposed under
the Code that would not otherwise be imposed but for the Transfer of an
Ownership Interest in a Residual Certificate to such Person. The terms "United
States," "State" and "international organization" shall have the meanings set
forth in Section 7701 of the Code or successor provisions.

                  "Distribution Account": The trust account or accounts created
and maintained by the Trustee pursuant to Section 3.10(b), which shall be
entitled "U.S. Bank National Association, as Trustee, in trust for the
registered holders of MASTR Asset Backed Securities Trust 2003-WMC2, Mortgage
Pass-Through Certificates." The Distribution Account must be an Eligible
Account.

                  "Distribution Date": The 25th day of any month, or if such
25th day is not a Business Day, the Business Day immediately following such 25th
day, commencing in October 2003.

                  "Due Date": With respect to each Distribution Date, the first
day of the calendar month in which such Distribution Date occurs, which is
generally the day of the month on which the Monthly 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 month immediately preceding the month
in which such Distribution Date occurs and ending on the related Due Date.

                  "Eligible Account": Any of (i) an account or accounts
maintained with a federal or state chartered depository institution or trust
company the short-term unsecured debt obligations of which (or, in the case of a
depository institution or trust company that is the principal subsidiary of a
holding company, the short-term unsecured debt obligations of such holding
company) are rated P-1 by Moody's, F-1 by Fitch or A-1+ by S&P (or comparable
ratings if Moody's, Fitch and S&P are not the Rating Agencies) at the time any
amounts are held on deposit therein, (ii) with respect to any Escrow Account, an
account or accounts the deposits in which are fully insured by the FDIC (to the
limits established by such corporation), the uninsured deposits in which account
are otherwise secured such that, as evidenced by an Opinion of Counsel delivered
to the NIMS Insurer, the Trustee and to each Rating Agency, the
Certificateholders will have a claim with respect to the funds in such account
or a perfected first priority security interest against such collateral (which
shall be limited to Permitted Investments) securing such funds that is superior
to claims of any other depositors or creditors of the depository institution
with which such account is maintained, (iii) a trust account or accounts
maintained with the trust department of a federal or state chartered depository
institution, national banking association or trust company acting in its
fiduciary capacity or (iv) an account otherwise acceptable to the NIMS Insurer
and to each Rating Agency without reduction or withdrawal of their then current
ratings of the Certificates as evidenced by a letter from each Rating Agency to
the Trustee and the NIMS Insurer. Eligible Accounts may bear interest.

                                      -14-

<PAGE>

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

                  "Escrow Account": The account or accounts created and
maintained pursuant to Section 3.09.

                  "Escrow Payments": The amounts constituting ground rents,
taxes, assessments, water rates, fire and hazard insurance premiums and other
payments required to be escrowed by the Mortgagor with the mortgagee pursuant to
any Mortgage Loan.

                  "Estate in Real Property": A fee simple estate in a parcel of
land.

                  "Excess Overcollateralized Amount": With respect to the Class
A Certificates and the Mezzanine Certificates and any Distribution Date, the
excess, if any, of (i) the Overcollateralized Amount for such Distribution Date,
assuming that 100% of the Principal Remittance Amount is applied as a principal
payment on such Distribution Date over (ii) the Overcollateralization Target
Amount for such Distribution Date.

                  "Extra Principal Distribution Amount": With respect to any
Distribution Date, the lesser of (x) the Monthly Interest Distributable Amount
payable on the Class CE Certificates on such Distribution Date as reduced by
Realized Losses allocated thereto with respect to such Distribution Date
pursuant to Section 4.04 and (y) the Overcollateralization Deficiency Amount for
such Distribution Date.

                  "Extraordinary Trust Fund Expense": Any amounts reimbursable
to the Trustee, or any director, officer, employee or agent of the Trustee from
the Trust Fund pursuant to Section 8.05 or Section 10.01(c) and any amounts
payable from the Distribution Account in respect of taxes pursuant to Section
10.01(g)(iii).

                  "Fannie Mae": Fannie Mae, formally known as the Federal
National Mortgage Association, or any successor thereto.

                  "FDIC": Federal Deposit Insurance Corporation or any successor
thereto.

                  "Final Recovery Determination": With respect to any defaulted
Mortgage Loan or any REO Property (other than a Mortgage Loan or REO Property
purchased by the Originator, the Seller, the Depositor or the Servicer pursuant
to or as contemplated by Section 2.03, Section 3.16(c) or Section 9.01), a
determination made by the Servicer that all Insurance Proceeds, Liquidation
Proceeds and other payments or recoveries which the Servicer, in its reasonable
good faith judgment, expects to be finally recoverable in respect thereof have
been so recovered. The Servicer shall maintain records, prepared by a Servicing
Officer, of each Final Recovery Determination made thereby.

                  "Fitch": Fitch Ratings, or its successor in interest.

                  "Fixed-Rate Mortgage Loan": Each of the Mortgage Loans
identified in the Mortgage

                                      -15-

<PAGE>

Loan Schedule as having a Mortgage Rate that is fixed.

                  "Formula Rate": For any Distribution Date and the Class A
Certificates and the Mezzanine Certificates, the lesser of (i) One-Month LIBOR
plus the related Certificate Margin and (ii) the Maximum Cap Rate.

                  "Freddie Mac": Freddie Mac, formally known as the Federal Home
Loan Mortgage Corporation, or any successor thereto.

                  "Gross Margin": With respect to each Adjustable-Rate Mortgage
Loan, the fixed percentage set forth in the related Mortgage Note that is added
to the Index on each Adjustment Date in accordance with the terms of the related
Mortgage Note used to determine the Mortgage Rate for such Adjustable-Rate
Mortgage Loan.

                  "Group I Basic Principal Distribution Amount": With respect to
any Distribution Date, the excess of (i) the Group I Principal Remittance Amount
for such Distribution Date over (ii)(a) the Overcollateralization Release
Amount, if any, for such Distribution Date multiplied by (b) the Class A-1
Allocation Percentage.

                  "Group I Interest Remittance Amount": With respect to any
Distribution Date, that portion of the Available Funds for such Distribution
Date attributable to interest received or advanced with respect to the Group I
Mortgage Loans.

                  "Group I Mortgage Loan": A Mortgage Loan assigned to Loan
Group I with a principal balance that conforms to Fannie Mae and Freddie Mac
loan limits.

                  "Group I Principal Distribution Amount": With respect to any
Distribution Date, the sum of (i) the Group I Basic Principal Distribution
Amount for such Distribution Date and (ii)(a) the Extra Principal Distribution
Amount for such Distribution Date multiplied by (b) the Class A-1 Allocation
Percentage.

                  "Group I Principal Remittance Amount": With respect to any
Distribution Date, the sum of (i) each scheduled payment of principal collected
or advanced on the Group I Mortgage Loans by the Servicer that were due during
the related Due Period, (ii) the principal portion of all partial and full
principal prepayments of the Group I Mortgage Loans applied by the Servicer
during the related Prepayment Period, (iii) the principal portion of all related
Net Liquidation Proceeds and Insurance Proceeds received during such Prepayment
Period with respect to the Group I Mortgage Loans, (iv) that portion of the
Purchase Price, representing principal of any repurchased Group I Mortgage Loan,
deposited to the Collection Account during such Prepayment Period, (v) the
principal portion of any related Substitution Adjustment Amounts deposited in
the Collection Account during such Prepayment Period with respect to the Group I
Mortgage Loans and (vi) on the Distribution Date on which the Trust Fund is to
be terminated pursuant to Section 9.01, that portion of the Termination Price,
in respect of principal on the Group I Mortgage Loans.

                  "Group II Basic Principal Distribution Amount": With respect
to any Distribution Date, the excess of (i) the Group II Principal Remittance
Amount for such Distribution Date over

                                      -16-

<PAGE>

(ii)(a) the Overcollateralization Release Amount, if any, for such Distribution
Date multiplied by (b) the Class A-3 Allocation Percentage.

                  "Group II Interest Remittance Amount": With respect to any
Distribution Date, that portion of the Available Funds for such Distribution
Date attributable to interest received or advanced with respect to the Group II
Mortgage Loans.

                  "Group II Mortgage Loan": A Mortgage Loan assigned to Loan
Group II with a principal balance that conforms to Fannie Mae and Freddie Mac
loan limits.

                  "Group II Principal Distribution Amount": With respect to any
Distribution Date, the sum of (i) the Group II Basic Principal Distribution
Amount for such Distribution Date and (ii)(a) the Extra Principal Distribution
Amount for such Distribution Date multiplied by (b) the Class A-3 Allocation
Percentage.

                  "Group II Principal Remittance Amount": With respect to any
Distribution Date, the sum of (i) each scheduled payment of principal collected
or advanced on the Group II Mortgage Loans by the Servicer that were due during
the related Due Period, (ii) the principal portion of all partial and full
principal prepayments of the Group II Mortgage Loans applied by the Servicer
during the related Prepayment Period, (iii) the principal portion of all related
Net Liquidation Proceeds and Insurance Proceeds received during such Prepayment
Period with respect to the Group II Mortgage Loans, (iv) that portion of the
Purchase Price, representing principal of any repurchased Group II Mortgage
Loan, deposited to the Collection Account during such Prepayment Period, (v) the
principal portion of any related Substitution Adjustment Amounts deposited in
the Collection Account during such Prepayment Period with respect to the Group
II Mortgage Loans and (vi) on the Distribution Date on which the Trust Fund is
to be terminated pursuant to Section 9.01, that portion of the Termination
Price, in respect of principal on the Group II Mortgage Loans.

                  "Indenture": An indenture relating to the issuance of notes
secured by the Class CE Certificates, the Class P Certificates and/or the Class
R Certificates (or any portion thereof) which may or may not be guaranteed by
the NIMS Insurer.

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

                  "Independent Contractor": Either (i) any Person (other than
the Servicer) that would be an "independent contractor" with respect to REMIC I
within the meaning of Section 856(d)(3) of the Code if REMIC I were a real
estate investment trust (except that the ownership tests set forth

                                      -17-

<PAGE>

in that section shall be considered to be met by any Person that owns, directly
or indirectly, 35% or more of any Class of Certificates), so long as REMIC I
does not receive or derive any income from such Person and provided that the
relationship between such Person and REMIC I is at arm's length, all within the
meaning of Treasury Regulation Section 1.856-4(b)(5), or (ii) any other Person
(including the Servicer) if the Trustee has received an Opinion of Counsel to
the effect that the taking of any action in respect of any REO Property by such
Person, subject to any conditions therein specified, that is otherwise herein
contemplated to be taken by an Independent Contractor will not cause such REO
Property to cease to qualify as "foreclosure property" within the meaning of
Section 860G(a)(8) of the Code (determined without regard to the exception
applicable for purposes of Section 860D(a) of the Code), or cause any income
realized in respect of such REO Property to fail to qualify as Rents from Real
Property.

                  "Index": With respect to each Adjustable Rate Mortgage Loan
and with respect to each related Adjustment Date, the index as specified in the
related Mortgage Note.

                  "Insurance Proceeds": Proceeds of any title policy, hazard
policy or other insurance policy, covering a Mortgage Loan, to the extent such
proceeds are not to be applied to the restoration of the related Mortgaged
Property or released to the Mortgagor in accordance with the procedures that the
Servicer would follow in servicing mortgage loans held for its own account,
subject to the terms and conditions of the related Mortgage Note and Mortgage.

                  "Interest Determination Date": With respect to the Class A
Certificates, the Mezzanine Certificates, REMIC I Regular Interest I-LTA1, REMIC
I Regular Interest I-LTA3A, REMIC I Regular Interest I-LTA3B, REMIC I Regular
Interest I-LTM1, REMIC I Regular Interest I-LTM2, REMIC I Regular Interest
I-LTM3, REMIC I Regular Interest I-LTM4, REMIC I Regular Interest I-LTM5 and
REMIC I Regular Interest I-LTM6 and any Accrual Period therefor, the second
London Business Day preceding the commencement of such Accrual Period.

                  "Late Collections": With respect to any Mortgage Loan and any
Due Period, all amounts received subsequent to the Determination Date
immediately following such Due Period, whether as late payments of Monthly
Payments or as Insurance 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.

                  "Liquidated Mortgage Loan": As to any Distribution Date, any
Mortgage Loan in respect of which the Servicer has determined, in its reasonable
judgment, as of the end of the related Prepayment Period, that all Liquidation
Proceeds which it expects to recover with respect to the liquidation of the
Mortgage Loan or disposition of the related REO Property have been recovered.

                  "Liquidation Event": With respect to any Mortgage Loan, any of
the following events: (i) such Mortgage Loan is paid in full; (ii) a Final
Recovery Determination is made as to such Mortgage Loan; or (iii) such Mortgage
Loan is removed from REMIC I by reason of its being purchased, sold or replaced
pursuant to or as contemplated by Section 2.03, Section 3.16(c) or Section 9.01.
With respect to any REO Property, either of the following events: (i) a Final
Recovery Determination is made as to such REO Property; or (ii) such REO
Property is removed from REMIC

                                      -18-

<PAGE>

I by reason of its being purchased pursuant to Section 9.01.

                  "Liquidation Proceeds": The amount (other than amounts
received in respect of the rental of any REO Property prior to REO Disposition)
received by the Servicer in connection with (i) the taking of all or a part of a
Mortgaged Property by exercise of the power of eminent domain or condemnation,
(ii) the liquidation of a defaulted Mortgage Loan through a trustee's sale,
foreclosure sale or otherwise, or (iii) the repurchase, substitution or sale of
a Mortgage Loan or an REO Property pursuant to or as contemplated by Section
2.03, Section 3.16(c), Section 3.23 or Section 9.01.

                  "Loan-to-Value Ratio": As of any date of determination, the
fraction, expressed as a percentage, the numerator of which is the principal
balance of the related Mortgage Loan at such date and the denominator of which
is the Value of the related Mortgaged Property.

                  "Loan Group": Any of Loan Group I or Loan Group II, as the
context requires.

                  "Loan Group I": The group of Mortgage Loans identified in the
Mortgage Loan Schedule as having been assigned to Loan Group I.

                  "Loan Group II": The group of Mortgage Loans identified in the
Mortgage Loan Schedule as having been assigned to Loan Group II.

                  "London Business Day": Any day on which banks in the City of
London are open and conducting transactions in United States dollars.

                  "Loss Severity Percentage": With respect to any Distribution
Date, the percentage equivalent of a fraction, the numerator of which is the
amount of Realized Losses incurred on a Mortgage Loan and the denominator of
which is the principal balance of such Mortgage Loan immediately prior to the
liquidation of such Mortgage Loan.

                  "Marker Rate": With respect to the Class CE Interest and any
Distribution Date, a per annum rate equal to two (2) times the weighted average
of the REMIC I Remittance Rate for each of REMIC I Regular Interests I-LTA1,
I-LTA3A, I-LTA3B, I-LTM1, I-LTM2, I-LTM3, I- LTM4, I-LTM5, I-LTM6 and I-LTZZ,
with the rate on each such REMIC I Regular Interest subject to a cap equal to
the lesser of (a) One-Month LIBOR plus the related margin and (b) the Net WAC
Cap rate for the purpose of this calculation for such Distribution Date and with
the rate on REMIC I Regular Interest I-LTZZ subject to a cap of zero for the
purpose of this calculation; provided, however, that solely for this purpose,
calculations of the REMIC I Remittance Rate and the related caps with respect to
such REMIC I Regular Interests (other than REMIC I Regular Interest I-LTZZ)
shall be multiplied by a fraction, the numerator of which is the actual number
of days in the Accrual Period and the denominator of which is 30.

                  "Maximum Cap Rate": For any Distribution Date with respect to
the Offered Certificates, a per annum rate equal to the weighted average of the
Adjusted Net Maximum Mortgage Rates of the Mortgage Loans multiplied by a
fraction, the numerator of which is 30 and the denominator of which is the
actual number of days elapsed in the related Accrual Period.

                                      -19-

<PAGE>

                  "Maximum I-LTZZ Uncertificated Interest Deferral Amount": With
respect to any Distribution Date, the excess of (i) accrued interest at the
REMIC I Remittance Rate applicable to REMIC I Regular Interest I-LTZZ for such
Distribution Date on a balance equal to the Uncertificated Balance of REMIC I
Regular Interest I-LTZZ minus the REMIC I Overcollateralization Amount, in each
case for such Distribution Date, over (ii) Uncertificated Interest on REMIC I
Regular Interest I-LTA1, REMIC I Regular Interest I-LTA3A, REMIC I Regular
Interest I-LTA3B, REMIC I Regular Interest I-LTM1, REMIC I Regular Interest
I-LTM2, REMIC I Regular Interest I-LTM3, REMIC I Regular Interest I-LTM4, REMIC
I Regular Interest I-LTM5 and REMIC I Regular Interest I-LTM6 for such
Distribution Date, with the rate on REMIC I Regular Interest I-LTA1, REMIC I
Regular Interest I-LTA3A, REMIC I Regular Interest I-LTA3B, REMIC I Regular
Interest I-LTM1, REMIC I Regular Interest I-LTM2, REMIC I Regular Interest
I-LTM3, REMIC I Regular Interest I-LTM4, REMIC I Regular Interest I-LTM5 and
REMIC I Regular Interest I-LTM6 subject to a cap equal to the related Formula
Rate; provided, however, each cap shall be multiplied by a fraction, the
numerator of which is the actual number of days in the related Accrual Period
and the denominator of which is 30.

                  "Maximum Mortgage Rate": With respect to each Adjustable-Rate
Mortgage Loan, the percentage set forth in the related Mortgage Note as the
maximum Mortgage Rate thereunder.

                  "MERS": Mortgage Electronic Registration Systems, Inc., a
corporation organized and existing under the laws of the State of Delaware, or
any successor thereto.

                  "MERS(R) System": The system of recording transfers of
Mortgages electronically maintained by MERS.

                  "MIN": The Mortgage Identification Number for Mortgage Loans
registered with MERS on the MERS(R) System.

                  "MOM Loan": With respect to any Mortgage Loan, MERS acting as
the mortgagee of such Mortgage Loan, solely as nominee for the originator of
such Mortgage Loan and its successors and assigns, at the origination thereof.

                  "Mezzanine Certificate": Any Class M-1 Certificate, Class M-2
Certificate, Class M- 3 Certificate, Class M-4 Certificates, Class M-5
Certificates or Class M-6 Certificate.

                  "Minimum Mortgage Rate": With respect to each Adjustable-Rate
Mortgage Loan, the percentage set forth in the related Mortgage Note as the
minimum Mortgage Rate thereunder.

                  "Monthly Interest Distributable Amount": With respect to the
Class A Certificates, the Mezzanine Certificates and the Class CE Certificates
and any Distribution Date, the amount of interest accrued during the related
Accrual Period at the related Pass-Through Rate on the Certificate Principal
Balance (or Notional Amount in the case of the Class CE Certificates) of such
Class immediately prior to such Distribution Date, reduced by any Prepayment
Interest Shortfalls (to the extent not covered by payments made by the Servicer
pursuant to Section 3.24) and Relief Act Interest Shortfalls (allocated to such
Certificate based on its respective entitlements to interest irrespective of any
Prepayment Interest Shortfalls and Relief Act Interest Shortfalls for such

                                      -20-

<PAGE>

Distribution Date).

                  "Monthly Payment": With respect to any Mortgage Loan, the
scheduled monthly payment of principal and interest on such Mortgage Loan which
is payable by the related Mortgagor from time to time under the related Mortgage
Note, determined: (a) after giving effect to (i) any Deficient Valuation and/or
Debt Service Reduction with respect to such Mortgage Loan and (ii) any reduction
in the amount of interest collectible from the related Mortgagor pursuant to the
Relief Act; (b) without giving effect to any extension granted or agreed to by
the Servicer pursuant to Section 3.07 and (c) on the assumption that all other
amounts, if any, due under such Mortgage Loan are paid when due.

                  "Monthly Statement": The statement prepared by the Trustee
pursuant to Section 4.02.

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

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

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

                  "Mortgage Loan": Each mortgage loan transferred and assigned
to the Trustee and delivered to the Trustee pursuant to Section 2.01 or Section
2.03(b) of this Agreement, as held from time to time as a part of the Trust, the
Mortgage Loans so held being identified in the Mortgage Loan Schedule.

                  "Mortgage Loan Purchase Agreement": The agreement among the
Seller, the Originator and the Depositor, regarding the sale of the Mortgage
Loans by the Seller to the Depositor, substantially in the form of Exhibit D
annexed hereto.

                  "Mortgage Loan Schedule": As of any date, the list of Mortgage
Loans included in REMIC I on such date, attached hereto as Schedule 1. The
Mortgage Loan Schedule shall set forth the following information with respect to
each Mortgage Loan:

                  (1) the Mortgage Loan identifying number;

                  (2) [reserved];

                  (3) the state and zip code of the Mortgaged Property;

                  (4) a code indicating whether the Mortgaged Property was
         represented by the borrower, at the time of origination, as being
         owner-occupied;

                                      -21-

<PAGE>

                  (5) the type of Residential Dwelling constituting the
         Mortgaged Property;

                  (6) the original months to maturity;

                  (7) the stated remaining months to maturity from the Cut-off
         Date based on the original amortization schedule;

                  (8) the Loan-to-Value Ratio at origination;

                  (9) the Mortgage Rate in effect immediately following the
         Cut-off Date;

                  (10) the date on which the first Monthly Payment was due on
         the Mortgage Loan;

                  (11) the stated maturity date;

                  (12) the amount of the Monthly Payment at origination;

                  (13) the amount of the Monthly Payment due on the first Due
         Date after the Cut- off Date;

                  (14) the last Due Date on which a Monthly Payment was actually
         applied to the unpaid Stated Principal Balance;

                  (15) the original principal amount of the Mortgage Loan;

                  (16) the Stated Principal Balance of the Mortgage Loan as of
         the close of business on the Cut-off Date;

                  (17) a code indicating the purpose of the Mortgage Loan (I.E.,
         purchase financing, rate/term refinancing, cash-out refinancing);

                  (18) the Mortgage Rate at origination;

                  (19) a code indicating the documentation program (I.E., full
         documentation, limited documentation, stated income documentation);

                  (20) the risk grade;

                  (21) the Value of the Mortgaged Property;

                  (22) the sale price of the Mortgaged Property, if applicable;

                  (23) the actual unpaid principal balance of the Mortgage Loan
         as of the Cut-off Date;

                  (24) the type and term of the related Prepayment Charge;

                                      -22-

<PAGE>

                  (25) the rounding code;

                  (26) the program code;

                  (27) a code indicating the lien priority for Mortgage Loans;

                  (28) with respect to each Adjustable Rate Mortgage Loan, the
         Minimum Mortgage Rate;

                  (29) with respect to each Adjustable Rate Mortgage Loan, the
         Maximum Mortgage Rate;

                  (30) with respect to each Adjustable Rate Mortgage Loan, the
         Gross Margin;

                  (31) with respect to each Adjustable Rate Mortgage Loan, the
         next Adjustment Date;

                  (32) with respect to each Adjustable Rate Mortgage Loan, the
         Periodic Rate Cap;

                  (33) [reserved];

                  (34) the credit score ("FICO") of such Mortgage Loan; and

                  (35) the total amount of points and fees charged such Mortgage
         Loan.

                  The Mortgage Loan Schedule shall set forth the following
information with respect to the Mortgage Loans in the aggregate and for each
Loan Group as of the Cut-off Date: (1) the number of Mortgage Loans (separately
identifying the number of Fixed-Rate Mortgage Loans and the number of
Adjustable-Rate Mortgage Loans); (2) the current 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. The Mortgage Loan
Schedule shall be amended from time to time by the Depositor in accordance with
the provisions of this Agreement. With respect to any Qualified Substitute
Mortgage Loan, the Cut-off Date shall refer to the related Cut-off Date for such
Mortgage Loan, determined in accordance with the definition of Cut-off Date
herein.

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

                  "Mortgage Pool": The pool of Mortgage Loans, identified on
Schedule 1 and existing from time to time thereafter, and any REO Properties
acquired in respect thereof.

                  "Mortgage Rate": With respect to each Mortgage Loan, the
annual rate at which interest accrues on such Mortgage Loan from time to time in
accordance with the provisions of the related Mortgage Note, which rate with
respect to the Adjustable-Rate Mortgage Loans, (A) as of any date of
determination until the first Adjustment Date following the Cut-off Date shall
be the rate set forth in the Mortgage Loan Schedule as the Mortgage Rate in
effect immediately following the

                                      -23-

<PAGE>

Cut-off Date and (B) as of any date of determination thereafter shall be the
rate as adjusted on the most recent Adjustment Date equal to the sum, rounded to
the nearest or next highest 0.125% as provided in the Mortgage Note, of the
Index, as most recently available as of a date prior to the Adjustment Date as
set forth in the related Mortgage Note, plus the related Gross Margin; provided
that the Mortgage Rate on such Adjustable-Rate Mortgage Loan on any Adjustment
Date shall never be more than the lesser of (i) the sum of the Mortgage Rate in
effect immediately prior to the Adjustment Date plus the related Periodic Rate
Cap, if any, and (ii) the related Maximum Mortgage Rate, and shall never be less
than the greater of (i) the Mortgage Rate in effect immediately prior to the
Adjustment Date less the Periodic Rate Cap, if any, and (ii) the related Minimum
Mortgage Rate. With respect to each Mortgage Loan that becomes an REO Property,
as of any date of determination, the annual rate determined in accordance with
the immediately preceding sentence as of the date such Mortgage Loan became an
REO Property.

                  "Mortgaged Property": The underlying property securing a
Mortgage Loan, including any REO Property, consisting of an Estate in Real
Property improved by a Residential Dwelling.

                  "Mortgagor": The obligor on a Mortgage Note.

                  "Net Liquidation Proceeds": With respect to any Liquidated
Mortgage Loan or any other disposition of related Mortgaged Property (including
REO Property) the related Liquidation Proceeds and Insurance Proceeds net of
Advances, Servicing Advances, Servicing Fees and any other accrued and unpaid
servicing fees received and retained in connection with the liquidation of such
Mortgage Loan or Mortgaged Property.

                  "Net Monthly Excess Cashflow": With respect to each
Distribution Date, the sum of (a) any Overcollateralization Release Amount for
such Distribution Date and (b) the excess of (x) Available Funds for such
Distribution Date over (y) the sum for such Distribution Date of (A) the Monthly
Interest Distributable Amounts for the Class A Certificates and the Mezzanine
Certificates, (B) the Unpaid Interest Shortfall Amounts for the Class A
Certificates and (C) the Principal Remittance Amount.

                  "Net Mortgage Rate": With respect to any Mortgage Loan (or the
related REO Property) as of any date of determination, a per annum rate of
interest equal to the then applicable Mortgage Rate for such Mortgage Loan minus
the Servicing Fee Rate.

                  "Net WAC Rate": For any Distribution Date with respect to the
Class A-1 Certificates, a per annum rate equal to the product of (x) the
weighted average of the Adjusted Net Mortgage Rates of the Group I Mortgage
Loans, weighted based on their outstanding Principal Balances as of the first
day of the calendar month preceding the month in which the Distribution Date
occurs and (y) a fraction, the numerator of which is 30 and the denominator of
which is the actual number of days elapsed in the related Accrual Period. For
federal income tax purposes, the economic equivalent of such rate shall be
expressed as the weighted average of the REMIC I Remittance Rate on REMIC I
Regular Interest I-LT1GRP, weighted on the basis of the Uncertificated Balance
of such REMIC I Regular Interest.

                  For any Distribution Date with respect to the Class A-3
Certificates, a per annum rate

                                      -24-

<PAGE>

equal to the product of (x) the weighted average of the Adjusted Net Mortgage
Rates of the Group II Mortgage Loans, weighted based on their outstanding
Principal Balances as of the first day of the calendar month preceding the month
in which the Distribution Date occurs and (y) a fraction, the numerator of which
is 30 and the denominator of which is the actual number of days elapsed in the
related Accrual Period. For federal income tax purposes, the economic equivalent
of such rate shall be expressed as the weighted average of the REMIC I
Remittance Rate on REMIC I Regular Interest I-LT2GRP, weighted on the basis of
the Uncertificated Balance of such REMIC I Regular Interest.

                  For any Distribution Date with respect to the Mezzanine
Certificates, a per annum rate equal to the product of (x) the weighted average
of the Adjusted Net Mortgage Rates of the Group I Mortgage Loans and the Group
II Mortgage Loans, weighted in proportion to the results of subtracting from the
aggregate Stated Principal Balance of each Loan Group the Certificate Principal
Balance of the related Class of Class A Certificates and (y) for each Class of
Mezzanine Certificates a fraction, the numerator of which is 30 and the
denominator of which is the actual number of days elapsed in the related Accrual
Period. For federal income tax purposes, the economic equivalent of such rate
shall be expressed as the weighted average of the REMIC I Remittance Rates on
(a) REMIC I Regular Interest I-LT1SUB, subject to a cap and a floor equal to the
Adjusted Net Mortgage Rates of the Group I Mortgage Loans and (b) REMIC I
Regular Interest I-LT2SUB, subject to a cap and a floor equal to the Adjusted
Net Mortgage Rates of the Group II Mortgage Loans, weighted on the basis of the
Uncertificated Balance of each such REMIC I Regular Interest.

                  "Net WAC Rate Carryover Amount": With respect to the Class A
Certificates and the Mezzanine Certificates and any Distribution Date, the sum
of (A) the positive excess of (i) the amount of interest accrued on such Class
of Certificates on such Distribution Date calculated at the related Formula
Rate, over (ii) the amount of interest accrued on such Class of Certificates at
the Net WAC Rate for such Distribution Date and (B) the Net WAC Rate Carryover
Amount for the previous Distribution Date not previously paid, together with
interest thereon at a rate equal to the Formula Rate for such Class of
Certificates for such Distribution Date and for such Accrual Period.

                  "Net WAC Rate Carryover Reserve Account": The account
established and maintained pursuant to Section 4.07.

                  "New Lease": Any lease of REO Property entered into on behalf
of REMIC I, including any lease renewed or extended on behalf of REMIC I, if
REMIC I has the right to renegotiate the terms of such lease.

                  "NIMS Insurer": Any insurer that is guaranteeing certain
payments under notes secured by collateral which includes all or a portion of
the Class CE Certificates, the Class P Certificates and/or the Class R
Certificates.

                  "Nonrecoverable Advance": Any 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 Servicer, will not or, in the case of a
proposed Advance, would not be ultimately recoverable from related Late
Collections, Insurance Proceeds or Liquidation Proceeds on such Mortgage Loan or
REO Property as provided herein.

                                      -25-

<PAGE>

                  "Nonrecoverable Servicing Advance": Any Servicing 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 Servicer, will not or,
in the case of a proposed Servicing Advance, would not be ultimately recoverable
from related Late Collections, Insurance Proceeds or Liquidation Proceeds on
such Mortgage Loan or REO Property as provided herein.

                  "Non-United States Person": Any Person other than a United
States Person.

                  "Notional Amount": With respect to the Class CE Interest and
any Distribution Date, the Uncertificated Balance of the REMIC I Regular
Interests for such Distribution Date.

                  "Officer's Certificate": A certificate signed by the Chairman
of the Board, the Vice Chairman of the Board, the President or a vice president
(however denominated), and by the Treasurer, the Secretary, or one of the
assistant treasurers or assistant secretaries of the Servicer, the Originator,
the Seller or the Depositor, as applicable.

                  "One-Month LIBOR": With respect to the Class A Certificates,
the Mezzanine Certificates, REMIC I Regular Interest I-LTA1, REMIC I Regular
Interest I-LTA3A, REMIC I Regular Interest I-LTA3B, REMIC I Regular Interest
I-LTM1, REMIC I Regular Interest I-LTM2, REMIC I Regular Interest I-LTM3, REMIC
I Regular Interest I-LTM4, REMIC I Regular Interest I-LTM5 and REMIC I Regular
Interest I-LTM6 and any Accrual Period therefor, the rate determined by the
Trustee on the related Interest Determination Date on the basis of the offered
rate for one- month U.S. dollar deposits, as such rate appears on Telerate Page
3750 as of 11:00 a.m. (London time) on such Interest Determination Date;
provided that if such rate does not appear on Telerate Page 3750, the rate for
such date will be determined on the basis of the offered rates of the Reference
Banks for one-month U.S. dollar deposits, as of 11:00 a.m. (London time) on such
Interest Determination Date. In such event, the Trustee will request the
principal London office of each of the Reference Banks to provide a quotation of
its rate. If on such Interest Determination Date, two or more Reference Banks
provide such offered quotations, One-Month LIBOR for the related Accrual Period
shall be the arithmetic mean of such offered quotations (rounded upwards if
necessary to the nearest whole multiple of 1/16%). If on such Interest
Determination Date, fewer than two Reference Banks provide such offered
quotations, One-Month LIBOR for the related Accrual Period shall be the higher
of (i) LIBOR as determined on the previous Interest Determination Date and (ii)
the Reserve Interest Rate. Notwithstanding the foregoing, if, under the
priorities described above, LIBOR for an Interest Determination Date would be
based on LIBOR for the previous Interest Determination Date for the third
consecutive Interest Determination Date, the Trustee shall select, after
consultation with the NIMS Insurer, an alternative comparable index (over which
the Trustee has no control), used for determining one-month Eurodollar lending
rates that is calculated and published (or otherwise made available) by an
independent party.

                  "Opinion of Counsel": A written opinion of counsel, who may,
without limitation, be salaried counsel for the Depositor or the Servicer,
acceptable to the Trustee, except that any opinion of counsel relating to (a)
the qualification of any of Trust REMIC as a REMIC or (b) compliance with the
REMIC Provisions must be an opinion of Independent counsel.

                  "Original Mortgage Loan": Any of the Mortgage Loans included
in REMIC I as of

                                      -26-

<PAGE>

the Closing Date.

                  "Originator": WMC Mortgage Corp., a California corporation.

                  "Overcollateralization Deficiency Amount": With respect to any
Distribution Date, the amount, if any, by which the Overcollateralization Target
Amount exceeds the Overcollateralized Amount on such Distribution Date (after
giving effect to distributions in respect of the Group I Basic Principal
Distribution Amount and the Group II Basic Principal Distribution Amount on such
Distribution Date).

                  "Overcollateralization Release Amount": With respect to any
Distribution Date, the lesser of (x) the Principal Remittance Amount for such
Distribution Date and (y) the Excess Overcollateralized Amount.

                  "Overcollateralization Target Amount": With respect to any
Distribution Date, (i) approximately 1.75% of the Cut-off Date Principal Balance
of the Mortgage Loans, (ii) on or after the Stepdown Date provided a Trigger
Event is not in effect, the greater of (x) approximately 3.50% of the aggregate
Stated Principal Balance of the Mortgage Loans as of the last day of the related
Due Period (after giving effect to scheduled payments of principal due during
the related Due Period, to the extent received or advanced, and unscheduled
collections of principal received during the related Prepayment Period) and (y)
$5,291,246, or (iii) on or after the Stepdown Date if a Trigger Event is in
effect, the Overcollateralization Target Amount for the immediately preceding
Distribution Date.

                  "Overcollateralized Amount": For any Distribution Date, the
amount equal to (i) the aggregate Principal Balance of the Mortgage Loans as of
the last day of the related Due Period (after giving effect to scheduled
payments of principal due during the related Due Period, to the extent received
or advanced, and unscheduled collections of principal received during the
related Prepayment Period) as of the related Determination Date minus (ii) the
sum of the aggregate Certificate Principal Balance of the Class A Certificates,
the Mezzanine Certificates and the Class P Certificates as of such Distribution
Date after giving effect to distributions to be made on such Distribution Date.

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

                  "Pass-Through Rate": With respect to the Class A Certificates
and the Mezzanine Certificates and any Distribution Date, a rate per annum equal
to the lesser of (i) the related Formula Rate for such Distribution Date and
(ii) the Net WAC Rate for such Distribution Date.

                  With respect to the Class CE Interest and any Distribution
Date, a rate per annum equal to the percentage equivalent of a fraction, the
numerator of which is the sum of the amounts calculated pursuant to clauses (A)
through (L) below, and the denominator of which is the aggregate Uncertificated
Balance of REMIC I Regular Interest I-LTAA, I-LTA1, I-LTA3A, I-LTA3B, I-LTM1,
I-LTM2, I-LTM3, I-LTM4, I-LTM5, I-LTM6 and I-LTMZZ. For purposes of calculating
the Pass- Through Rate for the Class CE Certificates, the numerator is equal to
the sum of the following

                                      -27-

<PAGE>

components:

                  (A) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTAA minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTAA;

                  (B) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTA1 minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTA1;

                  (C) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTA3A minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTA3A;

                  (D) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTA3B minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTA3B;

                  (E) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTM1 minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTM1;

                  (F) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTM2 minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTM2;

                  (G) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTM3 minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTM3;

                  (H) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTM4 minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTM4;

                  (I) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTM5 minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTM5;

                  (J) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTM6 minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTM6;

                  (K) the REMIC I Remittance Rate for REMIC I Regular Interest
         I-LTZZ minus the Marker Rate, applied to an amount equal to the
         Uncertificated Balance of REMIC I Regular Interest I-LTZZ; and

                                      -28-

<PAGE>

                  (L) 100% of the interest on REMIC I Regular Interest I-LTP.

                  With respect to the Class CE Certificates, 100% of the
interest distributable to the Class CE Interest, expressed as a per annum rate.

                  "Percentage Interest": With respect to any Class of
Certificates (other than the Residual Certificates), the undivided percentage
ownership in such Class evidenced by such Certificate, expressed as a
percentage, the numerator of which is the initial Certificate Principal Balance
or Notional Amount represented by such Certificate and the denominator of which
is the aggregate initial Certificate Principal Balance or Notional Amount of all
of the Certificates of such Class. The Class A Certificates and the Mezzanine
Certificates are issuable only in minimum Percentage Interests corresponding to
minimum initial Certificate Principal Balances of $25,000 and integral multiples
of $1.00 in excess thereof. The Class P Certificates are issuable only in
Percentage Interests corresponding to initial Certificate Principal Balances of
$20 and integral multiples thereof. The Class CE Certificates are issuable only
in minimum Percentage Interests corresponding to minimum initial Certificate
Principal Balances of $10,000 and integral multiples of $1.00 in excess thereof;
provided, however, that a single Certificate of each such Class of Certificates
may be issued having a Percentage Interest corresponding to the remainder of the
aggregate initial Certificate Principal Balance or Notional Amount of such Class
or to an otherwise authorized denomination for such Class plus such remainder.
With respect to any Residual Certificate, the undivided percentage ownership in
such Class evidenced by such Certificate, as set forth on the face of such
Certificate. The Residual Certificates are issuable in Percentage Interests of
20% and multiples thereof.

                  "Periodic Rate Cap": With respect to each Adjustable-Rate
Mortgage Loan and any Adjustment Date therefor, the fixed percentage set forth
in the related Mortgage Note, which is the maximum amount by which the Mortgage
Rate for such Mortgage Loan may increase or decrease (without regard to the
Maximum Mortgage Rate or the Minimum Mortgage Rate) on such Adjustment Date
(other than the first Adjustment Date) from the Mortgage Rate in effect
immediately prior to such Adjustment Date.

                  "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 or managed by the Depositor, the Servicer, the NIMS
Insurer, the Trustee or any of their respective Affiliates or for which an
Affiliate of the NIMS Insurer or Trustee serves as an advisor:

                  (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) (A) demand and time deposits in, certificates of deposit
         of, bankers' acceptances issued by or federal funds sold by any
         depository institution or trust company (including the Trustee or its
         agent acting in their respective commercial capacities) incorporated
         under the laws of the United States of America or any state thereof and
         subject to supervision and examination by federal and/or state
         authorities, so long as, at the time of such investment or contractual
         commitment providing for such investment, such depository institution
         or trust company (or, if the only Rating Agency is S&P, in the case of
         the principal

                                      -29-

<PAGE>

         depository institution in a depository institution holding company,
         debt obligations of the depository institution holding company) or its
         ultimate parent has a short-term uninsured debt rating in the highest
         available rating category of Moody's, Fitch and S&P and provided that
         each such investment has an original maturity of no more than 365 days;
         and provided further that, if the only Rating Agency is S&P and if the
         depository or trust company is a principal subsidiary of a bank holding
         company and the debt obligations of such subsidiary are not separately
         rated, the applicable rating shall be that of the bank holding company;
         and, provided further that, if the original maturity of such short-term
         obligations of a domestic branch of a foreign depository institution or
         trust company shall exceed 30 days, the short- term rating of such
         institution shall be A-1+ in the case of S&P if S&P is the Rating
         Agency; and (B) any other demand or time deposit or deposit which is
         fully insured by the FDIC;

                  (iii) repurchase obligations with a term not to exceed 30 days
         with respect to any security described in clause (i) above and entered
         into with a depository institution or trust company (acting as
         principal) rated A-1+ or higher by S&P, F-1+ or higher by Fitch and A2
         or higher by Moody's, provided, however, that collateral transferred
         pursuant to such repurchase obligation must be of the type described in
         clause (i) above and must (A) be valued daily at current market prices
         plus accrued interest, (B) pursuant to such valuation, be equal, at all
         times, to 105% of the cash transferred by the Trustee in exchange for
         such collateral and (C) be delivered to the Trustee or, if the Trustee
         is supplying the collateral, an agent for the Trustee, in such a manner
         as to accomplish perfection of a security interest in the collateral by
         possession of certificated securities;

                  (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 a Rating
         Agency in its highest long-term unsecured rating category 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 a Rating Agency in its highest
         short- term unsecured debt rating available at the time of such
         investment;

                  (vi) units of money market funds, including those managed or
         advised by the Trustee or its Affiliates, that have been rated "AAA" by
         S&P, "AAA" by Fitch (if so rated by Fitch) and "Aaa" by Moody's; and

                  (vii) if previously confirmed in writing to the Trustee and
         consented to by the NIMS Insurer, any other demand, money market or
         time deposit, or any other obligation, security or investment, as may
         be acceptable to the Rating Agencies in writing as a permitted
         investment of funds backing securities having ratings equivalent to its
         highest initial rating of the Class A Certificates;

provided, 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

                                      -30-

<PAGE>

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 Transferee of a Residual
Certificate other than a Disqualified Organization or Non-United States Person.

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

                  "Plan": Any employee benefit plan or certain other retirement
plans and arrangements, including individual retirement accounts and annuities,
Keogh plans and bank collective investment funds and insurance company general
or separate accounts in which such plans, accounts or arrangements are invested,
that are subject to ERISA or Section 4975 of the Code.

                  "Prepayment Assumption": As defined in the Prospectus
Supplement.

                  "Prepayment Charge": With respect to any Prepayment Period,
any prepayment premium, fee, penalty or charge payable by a Mortgagor in
connection with any full or partial Principal Prepayment on a Mortgage Loan
pursuant to the terms of the related Mortgage Note (other than any Servicer
Prepayment Charge Payment Amount).

                  "Prepayment Charge Schedule": As of any date, the list of
Prepayment Charges on the Mortgage Loans included in REMIC I on such date,
attached hereto as Schedule 2 (including the Prepayment Charge Summary attached
thereto). The Prepayment Charge Schedule shall set forth the following
information with respect to each related Mortgage Loan:

                  (i) the Mortgage Loan identifying number;

                  (ii) a code indicating the type of Prepayment Charge;

                  (iii) the state of origination of the related Mortgage Loan;

                  (iv) the date on which the first monthly payment was due on
         the related Mortgage Loan;

                  (v) the term of the related Mortgage Loan; and

                  (vi) the principal balance of the related Mortgage Loan as of
         the Cut-off Date.

                  The Prepayment Charge Schedule shall be amended from time to
time by the Depositor in accordance with the provisions of this Agreement and a
copy of such amended Prepayment Charge Schedule shall be furnished by the
Servicer to the NIMS Insurer.

                  "Prepayment Interest Excess": With respect to any Distribution
Date, for each Mortgage Loan that was the subject of a Principal Prepayment in
full during the portion of the related

                                      -31-

<PAGE>

Prepayment Period occurring between the first day and the Determination Date of
the calendar month in which such Distribution Date occurs, an amount equal to
interest (to the extent received) at the applicable Net Mortgage Rate on the
amount of such Principal Prepayment for the number of days commencing on the
first day of the calendar month in which such Distribution Date occurs and
ending on the date on which such prepayment is so applied.

                  "Prepayment Interest Shortfall": With respect to any
Distribution Date, for each Mortgage Loan that was the subject of a Principal
Prepayment in full during the portion of the related Prepayment Period occurring
between the first day of the related Prepayment Period and the last day of the
calendar month preceding the month in which such Distribution Date occurs, an
amount equal to one month's interest on the Mortgage Loan less any payments made
by the Mortgagor.

                  "Prepayment Period": With respect to any Distribution Date,
the period commencing on the day after the Determination Date in the calendar
month preceding the calendar month in which such Distribution Date occurs (or,
in the case of the first Distribution Date, commencing on September 1, 2003) and
ending on the Determination Date of the calendar month in which such
Distribution Date occurs.

                  "Prime Rate": The lesser of (i) the per annum rate of
interest, publicly announced from time to time by Chase Manhattan Bank at its
principal office in the City of New York, as its prime or base lending rate (any
change in such rate of interest to be effective on the date such change is
announced by Chase Manhattan Bank) and (ii) the maximum rate permissible under
applicable usury or similar laws limiting interest rates.

                  "Principal Balance": As to any Mortgage Loan other than a
Liquidated Mortgage Loan, and any day, the related Cut-off Date Principal
Balance, minus all collections credited against the Cut-off Date Principal
Balance of any such Mortgage Loan. For purposes of this definition, a Liquidated
Mortgage Loan shall be deemed to have a Principal Balance equal to the Principal
Balance of the related Mortgage Loan as of the final recovery of related
Liquidation Proceeds and a Principal Balance of zero thereafter. As to any REO
Property and any day, the Principal Balance of the related Mortgage Loan
immediately prior to such Mortgage Loan becoming REO Property minus any REO
Principal Amortization received with respect thereto on or prior to such day.

                  "Principal Prepayment": Any payment of principal made by the
Mortgagor on a Mortgage Loan which is received in advance of its scheduled Due
Date and which is not accompanied by an amount of interest representing the full
amount of scheduled interest due on any Due Date in any month or months
subsequent to the month of prepayment.

                  "Principal Remittance Amount": With respect to any
Distribution Date, the sum of the Group I Principal Remittance Amount and the
Group II Principal Remittance Amount.

                  "Prospectus Supplement": That certain Prospectus Supplement
dated September 25, 2003 relating to the public offering of the Class A
Certificates and the Mezzanine Certificates.

                  "PTCE": A Prohibited Transaction Class Exemption issued by the
United States Department of Labor which provides that exemptive relief is
available to any party to any transaction

                                      -32-

<PAGE>

which satisfies the conditions of the exemption.

                  "Purchase Price": With respect to any Mortgage Loan or REO
Property to be purchased pursuant to or as contemplated by Section 2.03, Section
3.16(c) or Section 9.01, and as confirmed by an Officer's Certificate from the
Servicer and to the Trustee an amount equal to the sum of (i) 100% of the Stated
Principal Balance thereof as of the date of purchase (or such other price as
provided in Section 9.01), (ii) in the case of (x) a Mortgage Loan, accrued
interest on such Stated Principal Balance at the applicable Net Mortgage Rate in
effect from time to time from the Due Date as to which interest was last covered
by a payment by the Mortgagor or an advance by the Servicer, which payment or
advance had as of the date of purchase been distributed pursuant to Section
4.01, through the end of the calendar month in which the purchase is to be
effected and (y) an REO Property, the sum of (1) accrued interest on such Stated
Principal Balance at the applicable Net Mortgage Rate in effect from time to
time from the Due Date as to which interest was last covered by a payment by the
Mortgagor or an advance by the Servicer through the end of the calendar month
immediately preceding the calendar month in which such REO Property was
acquired, plus (2) REO Imputed Interest for such REO Property for each calendar
month commencing with the calendar month in which such REO Property was acquired
and ending with the calendar month in which such purchase is to be effected, net
of the total of all net rental income, Insurance Proceeds, Liquidation Proceeds
and Advances that as of the date of purchase had been distributed as or to cover
REO Imputed Interest pursuant to Section 4.01, (iii) any unreimbursed Servicing
Advances and Advances (including Nonrecoverable Advances and Nonrecoverable
Servicing Advances) and any unpaid Servicing Fees allocable to such Mortgage
Loan or REO Property, (iv) any amounts previously withdrawn from the Collection
Account in respect of such Mortgage Loan or REO Property pursuant to Section
3.11(a)(ix) and Section 3.16(b), and (v) in the case of a Mortgage Loan required
to be purchased pursuant to Section 2.03, expenses reasonably incurred or to be
incurred by the Servicer, the NIMS Insurer or the Trustee in respect of the
breach or defect giving rise to the purchase obligation including any costs and
damages incurred by the Trust in connection with any violation by such loan of
any predatory or abusive lending law.

                  "Qualified Substitute Mortgage Loan": A mortgage loan
substituted for a Deleted Mortgage Loan pursuant to the terms of this Agreement
which must, on the date of such substitution, (i) have an outstanding Principal
Balance, after application of all scheduled payments of principal and interest
due during or prior to the month of substitution, not in excess of the Principal
Balance of the Deleted Mortgage Loan as of the Due Date in the calendar month
during which the substitution occurs, (ii) have a Mortgage Rate not less than
(and not more than one percentage point in excess of) the Mortgage Rate of the
Deleted Mortgage Loan, (iii) with respect to any Adjustable- Rate Mortgage Loan,
have a Maximum Mortgage Rate not less than the Maximum Mortgage Rate on the
Deleted Mortgage Loan, (iv) with respect to any Adjustable-Rate Mortgage Loan,
have a Minimum Mortgage Rate not less than the Minimum Mortgage Rate of the
Deleted Mortgage Loan, (v) with respect to any Adjustable-Rate Mortgage Loan,
have a Gross Margin equal to the Gross Margin of the Deleted Mortgage Loan, (vi)
with respect to any Adjustable-Rate Mortgage Loan, have a next Adjustment Date
not more than two months later than the next Adjustment Date on the Deleted
Mortgage Loan, (vii) have a remaining term to maturity not greater than (and not
more than one year less than) that of the Deleted Mortgage Loan, (viii) have the
same Due Date as the Due Date on the Deleted Mortgage Loan, (ix) have a
Loan-to-Value Ratio as of the date of substitution equal to or lower than the
Loan-to-Value Ratio of the Deleted Mortgage Loan as of such date, (x) have

                                      -33-

<PAGE>

a risk grading determined by the Originator at least equal to the risk grading
assigned on the Deleted Mortgage Loan, (xi) have a Prepayment Charge provision
at least equal to the Prepayment Charge provision in the Deleted Mortgage Loan,
(xii) [reserved] and (xiii) conform to each representation and warranty set
forth in Section 6 of the Mortgage Loan Purchase Agreement applicable to the
Deleted Mortgage Loan. In the event that one or more mortgage loans are
substituted for one or more Deleted Mortgage Loans, the amounts described in
clause (i) hereof shall be determined on the basis of aggregate principal
balances, the Mortgage Rates described in clause (ii) hereof shall be determined
on the basis of weighted average Mortgage Rates, the terms described in clause
(vii) hereof shall be determined on the basis of weighted average remaining term
to maturity, the Loan-to- Value Ratios described in clause (ix) hereof shall be
satisfied as to each such mortgage loan, the risk gradings described in clause
(x) hereof shall be satisfied as to each such mortgage loan and, except to the
extent otherwise provided in this sentence, the representations and warranties
described in clause (xi) hereof must be satisfied as to each Qualified
Substitute Mortgage Loan or in the aggregate, as the case may be.

                  "Rating Agency or Rating Agencies": Moody's and S&P or their
successors. If such agencies or their successors are no longer in existence,
"Rating Agencies" shall be such nationally recognized statistical rating
agencies, or other comparable Persons, designated by the Depositor, notice of
which designation shall be given to the Trustee and the Servicer.

                  "Realized Loss": With respect to each Mortgage Loan as to
which a Final Recovery Determination has been made, an amount (not less than
zero) equal to (i) the unpaid Principal Balance of such Mortgage Loan as of the
commencement of the calendar month in which the Final Recovery Determination was
made, plus (ii) accrued interest from the Due Date as to which interest was last
paid by the Mortgagor through the end of the calendar month in which such Final
Recovery Determination was made, calculated in the case of each calendar month
during such period (A) at an annual rate equal to the annual rate at which
interest was then accruing on such Mortgage Loan and (B) on a principal amount
equal to the Stated Principal Balance of such Mortgage Loan as of the close of
business on the Distribution Date during such calendar month, plus (iii) any
amounts previously withdrawn from the Collection Account in respect of such
Mortgage Loan pursuant to Section 3.11(a)(ix) and Section 3.16(b), minus (iv)
the proceeds, if any, received in respect of such Mortgage Loan during the
calendar month in which such Final Recovery Determination was made, net of
amounts that are payable therefrom to the Servicer with respect to such Mortgage
Loan pursuant to Section 3.11(a)(iii).

                  With respect to any REO Property as to which a Final Recovery
Determination has been made, an amount (not less than zero) equal to (i) the
unpaid principal balance of the related Mortgage Loan as of the date of
acquisition of such REO Property on behalf of REMIC I, plus (ii) accrued
interest from the Due Date as to which interest was last paid by the Mortgagor
in respect of the related Mortgage Loan through the end of the calendar month
immediately preceding the calendar month in which such REO Property was
acquired, calculated in the case of each calendar month during such period (A)
at an annual rate equal to the annual rate at which interest was then accruing
on the related Mortgage Loan and (B) on a principal amount equal to the Stated
Principal Balance of the related Mortgage Loan as of the close of business on
the Distribution Date during such calendar month, plus (iii) REO Imputed
Interest for such REO Property for each calendar month commencing with the
calendar month in which such REO Property was acquired and ending with

                                      -34-

<PAGE>

the calendar month in which such Final Recovery Determination was made, plus
(iv) any amounts previously withdrawn from the Collection Account in respect of
the related Mortgage Loan pursuant to Section 3.11(a)(ix) and Section 3.16(b),
minus (v) the aggregate of all Advances and Servicing Advances (in the case of
Servicing Advances, without duplication of amounts netted out of the rental
income, Insurance Proceeds and Liquidation Proceeds described in clause (vi)
below) made by the Servicer in respect of such REO Property or the related
Mortgage Loan for which the Servicer has been or, in connection with such Final
Recovery Determination, will be reimbursed pursuant to Section 3.23 out of
rental income, Insurance Proceeds and Liquidation Proceeds received in respect
of such REO Property, minus (vi) the total of all net rental income, Insurance
Proceeds and Liquidation Proceeds received in respect of such REO Property that
has been, or in connection with such Final Recovery Determination, will be
transferred to the Distribution Account pursuant to Section 3.23.

                  With respect to each Mortgage Loan which has become the
subject of a Deficient Valuation, the difference between the principal balance
of the Mortgage Loan outstanding immediately prior to such Deficient Valuation
and the principal balance of the Mortgage Loan as reduced by the Deficient
Valuation.

                  With respect to each Mortgage Loan which has become the
subject of a Debt Service Reduction, the portion, if any, of the reduction in
each affected Monthly Payment attributable to a reduction in the Mortgage Rate
imposed by a court of competent jurisdiction. Each such Realized Loss shall be
deemed to have been incurred on the Due Date for each affected Monthly Payment.

                  "Record Date": With respect to each Distribution Date and any
Book-Entry Certificate, the Business Day immediately preceding such Distribution
Date. With respect to each Distribution Date and any other Certificates,
including any Definitive Certificates, the last Business Day of the month
immediately preceding the month in which such Distribution Date occurs.

                  "Reference Banks": Bankers Trust Company, Barclay's Bank PLC,
The Tokyo Mitsubishi Bank and National Westminster Bank PLC and their successors
in interest; provided, however, that if any of the foregoing banks are not
suitable to serve as a Reference Bank, then any leading banks selected by the
Trustee (after consultation with the NIMS Insurer) which are engaged in
transactions in Eurodollar deposits in the international Eurocurrency market (i)
with an established place of business in London, (ii) not controlling, under the
control of or under common control with the Depositor or any Affiliate thereof
and (iii) which have been designated as such by the Trustee.

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

                  "Regular Certificate": Any Class A Certificate, Mezzanine
Certificate, Class CE Certificate or Class P Certificate.

                  "Regular Interest": A "regular interest" in a REMIC within the
meaning of Section 860G(a)(1) of the Code.

                  "Relief Act": The Soldiers' and Sailors' Civil Relief Act of
1940, as amended.

                                      -35-

<PAGE>

                  "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 calendar month as
a result of the application of the Relief Act.

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

                  "REMIC I": The segregated pool of assets subject hereto,
constituting the primary trust created hereby and to be administered hereunder,
with respect to which a REMIC election is to be made, consisting of: (i) such
Mortgage Loans and Prepayment Charges as from time to time are subject to this
Agreement, together with the Mortgage Files relating thereto, and together with
all collections thereon and proceeds thereof; (ii) any REO Property, together
with all collections thereon and proceeds thereof; (iii) the Trustee's rights
with respect to the Mortgage Loans under all insurance policies, required to be
maintained pursuant to this Agreement and any proceeds thereof; (iv) the
Depositor's rights under the Mortgage Loan Purchase Agreement (including any
security interest created thereby); (v) the Collection Account (other than any
amounts representing any Servicer Prepayment Charge Payment Amount), the
Distribution Account (other than any amounts representing any Servicer
Prepayment Charge Payment Amount) and any REO Account, and such assets that are
deposited therein from time to time and any investments thereof, together with
any and all income, proceeds and payments with respect thereto. Notwithstanding
the foregoing, however, REMIC I specifically excludes the Net WAC Rate Carryover
Reserve Account, all payments and other collections of principal and interest
due on the Mortgage Loans on or before the Cut-off Date and all Prepayment
Charges payable in connection with Principal Prepayments made before the Cut-off
Date.

                  "REMIC I Interest Loss Allocation Amount": With respect to any
Distribution Date, an amount (subject to adjustment based on the actual number
of days elapsed in the respective Accrual Periods for the indicated Regular
Interests for such Distribution Date) equal to (a) the product of (i) 50% of the
aggregate Stated Principal Balance of the Mortgage Loans and REO Properties then
outstanding and (ii) the REMIC I Remittance Rate for REMIC I Regular Interest I-
LTAA minus the Marker Rate, divided by (b) 12.

                  "REMIC I Marker Allocation Percentage": 50% of any amount
payable or loss attributable from the Mortgage Loans, which shall be allocated
to REMIC I Regular Interest I-LTAA, REMIC I Regular Interest I-LTA1, REMIC I
Regular Interest I-LTA3A, REMIC I Regular Interest I-LTA3B, REMIC I Regular
Interest I-LTM1, REMIC I Regular Interest I-LTM2, REMIC I Regular Interest
I-LTM3, REMIC I Regular Interest I-LTM4, REMIC I Regular Interest I-LTM5, REMIC
I Regular Interest I-LTM6, REMIC I Regular Interest I-LTZZ and REMIC I Regular
Interest I-LTP.

                  "REMIC I Overcollateralized Amount": With respect to any date
of determination, (i) 0.50% of the aggregate Uncertificated Balances of the
REMIC I Regular Interests minus (ii) the aggregate of the Uncertificated
Balances of REMIC I Regular Interest I-LTA1, REMIC I Regular Interest I-LTA3A,
REMIC I Regular Interest I-LTA3B, REMIC I Regular Interest I-LTM1, REMIC I
Regular Interest I-LTM2, REMIC I Regular Interest I-LTM3, REMIC I Regular
Interest I-LTM4, REMIC I Regular Interest I-LTM5, REMIC I Regular Interest
I-LTM6 and REMIC I Regular Interest

                                      -36-

<PAGE>

I-LTP, in each case as of such date of determination.

                  "REMIC I Principal Loss Allocation Amount": With respect to
any Distribution Date, an amount equal to the product of (i) 50% of the
aggregate Stated Principal Balance of the Mortgage Loans and REO Properties then
outstanding and (ii) 1 minus a fraction, the numerator of which is two times the
aggregate of the Uncertificated Balances of REMIC I Regular Interest I-LTA1,
REMIC I Regular Interest I-LTA3A, REMIC I Regular Interest I-LTA3B, REMIC I
Regular Interest I-LTM1, REMIC I Regular Interest I-LTM2, REMIC I Regular
Interest I-LTM3, REMIC I Regular Interest I-LTM4, REMIC I Regular Interest
I-LTM5 and REMIC I Regular Interest I-LTM6 and the denominator of which is the
aggregate of the Uncertificated Balances of REMIC I Regular Interest I-LTA1,
REMIC I Regular Interest I-LTA3A, REMIC I Regular Interest I-LTA3B, REMIC I
Regular Interest I-LTM1, REMIC I Regular Interest I-LTM2, REMIC I Regular
Interest I-LTM3, REMIC I Regular Interest I-LTM4, REMIC I Regular Interest
I-LTM5, REMIC I Regular Interest I-LTM6 and REMIC I Regular Interest I-LTZZ.

                  "REMIC I Regular Interest": Any of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a "regular interest" in REMIC I. Each REMIC I Regular Interest
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto. The
designations for the respective REMIC I Regular Interests are set forth in the
Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTAA": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTAA
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTA1": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTA1
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTA3A": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTA3A
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTA3B": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I.

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<PAGE>

REMIC I Regular Interest I-LTA3B shall accrue interest at the related REMIC I
Remittance Rate in effect from time to time, and shall be entitled to
distributions of principal, subject to the terms and conditions hereof, in an
aggregate amount equal to its initial Uncertificated Balance as set forth in the
Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTM1": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTM1
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTM2": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTM2
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTM3": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTM3
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTM4": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTM4
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTM5": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTM5
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTM6": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTM6
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in

                                      -38-

<PAGE>

the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTP": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTP
shall be entitled to any Prepayment Charges collected by the Servicer and to a
distribution of principal, subject to the terms and conditions hereof, in an
aggregate amount equal to its initial Uncertificated Balance as set forth in the
Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTZZ": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTZZ
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LT1SUB": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LT1SUB
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LT1GRP": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LT1GRP
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LT2SUB": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LT2SUB
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LT2GRP": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LT2GRP
shall accrue interest at the related REMIC I Remittance Rate in effect from time
to time, and shall be entitled to distributions of principal, subject to the
terms and conditions hereof, in an aggregate amount equal to its initial
Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Regular Interest I-LTXX": One of the separate
non-certificated beneficial ownership interests in REMIC I issued hereunder and
designated as a Regular Interest in REMIC I. REMIC I Regular Interest I-LTXX
shall accrue interest at the related REMIC I Remittance Rate in

                                      -39-

<PAGE>

effect from time to time, and shall be entitled to distributions of principal,
subject to the terms and conditions hereof, in an aggregate amount equal to its
initial Uncertificated Balance as set forth in the Preliminary Statement hereto.

                  "REMIC I Remittance Rate": With respect to REMIC I Regular
Interest I-LTAA, REMIC I Regular Interest I-LTA1, REMIC I Regular Interest
I-LTA3A, REMIC I Regular Interest I-LTA3B, REMIC I Regular Interest I-LTM1,
REMIC I Regular Interest I-LTM2, , REMIC I Regular Interest I-LTM4, REMIC I
Regular Interest I-LTM5, REMIC I Regular Interest I-LTM6, REMIC I Regular
Interest I-LTZZ, REMIC I Regular Interest I-LTP, REMIC I Regular Interest
I-LT1SUB, REMIC I Regular Interest I-LT2SUB and REMIC I Regular Interest I-LTXX,
the weighted average of the Adjusted Net Mortgage Rates of the Mortgage Loans.
With respect to REMIC I Regular Interest I-LT1GRP, the weighted average of the
Adjusted Net Mortgage Rates of the Group I Mortgage Loans and with respect REMIC
I Regular Interest I-LT2GRP, the weighted average of the Adjusted Net Mortgage
Rates of the Group II Mortgage Loans.

                  "REMIC I Subordinated Balance Ratio": The ratio among the
Uncertificated Balances of each REMIC I Regular Interest ending with the
designation "SUB,", equal to the ratio among, with respect to each such REMIC I
Regular Interest, the excess of (x) the aggregate Stated Principal Balance of
the Mortgage Loans in the related Loan Group over (y) the Current Principal
Amount of the Class A Certificates in the related Loan Group.

                  "REMIC I Sub WAC Allocation Percentage": 50% of any amount
payable or loss attributable from the Mortgage Loans, which shall be allocated
to REMIC I Regular Interest I- LT1SUB, REMIC I Regular Interest I-LT1GRP, REMIC
I Regular Interest I-LT2SUB, REMIC I Regular Interest I-LT2GRP and REMIC I
Regular Interest I-LTXX.

                  "REMIC I Required Overcollateralized Amount": 1.00% of the
Overcollateralization Target Amount.

                  "REMIC II": The segregated pool of assets consisting of all of
the REMIC I Regular Interests conveyed in trust to the Trustee, for the benefit
of the REMIC II Certificateholders pursuant to Section 2.07, and all amounts
deposited therein, with respect to which a separate REMIC election is to be
made.

                  "REMIC II Certificate": Any Regular Certificate (other than a
Class CE Certificate or Class P Certificate) or Class R Certificate.

                  "REMIC II Certificateholder": The Holder of any REMIC II
Certificate.

                  "REMIC II Regular Interest": Any Class A Certificate, Class M
Certificate, the Class CE Interest or Class P Interest.

                  "REMIC III": The segregated pool of assets consisting of all
of the Class CE Interest conveyed in trust to the Trustee, for the benefit of
the Holders of the Regular Certificates and the Class R-X Certificate (in
respect of the Class R-III Interest), pursuant to Article II hereunder, and all
amounts deposited therein, with respect to which a separate REMIC election is to
be made.

                                      -40-

<PAGE>

                  "REMIC IV": The segregated pool of assets consisting of all of
the Class P Interest conveyed in trust to the Trustee, for the benefit of the
Holders of the Regular Certificates and the Class R-X Certificate (in respect of
the Class R-IV Interest), pursuant to Article II hereunder, and all amounts
deposited therein, with respect to which a separate REMIC election is to be
made.

                  "REMIC Provisions": Provisions of the federal income tax law
relating to real estate mortgage investment conduits, which appear at Section
860A through 860G of the Code, and related provisions, and proposed, temporary
and final regulations and published rulings, notices and announcements
promulgated thereunder, as the foregoing may be in effect from time to time.

                  "Remittance Report": A report prepared by the Servicer and
delivered to the Trustee and the NIMS Insurer pursuant to Section 4.03.

                  "Rents from Real Property": With respect to any REO Property,
gross income of the character described in Section 856(d) of the Code as being
included in the term "rents from real property."

                  "REO Account": The account or accounts maintained, or caused
to be maintained, by the Servicer in respect of an REO Property pursuant to
Section 3.23.

                  "REO Disposition": The sale or other disposition of an REO
Property on behalf of REMIC I.

                  "REO Imputed Interest": As to any REO Property, for any
calendar month during which such REO Property was at any time part of REMIC I,
one month's interest at the applicable Net Mortgage Rate on the Stated Principal
Balance of such REO Property (or, in the case of the first such calendar month,
of the related Mortgage Loan, if appropriate) as of the close of business on the
Distribution Date in such calendar month.

                  "REO Principal Amortization": With respect to any REO
Property, for any calendar month, the excess, if any, of (a) the aggregate of
all amounts received in respect of such REO Property during such calendar month,
whether in the form of rental income, sale proceeds (including, without
limitation, that portion of the Termination Price paid in connection with a
purchase of all of the Mortgage Loans and REO Properties pursuant to Section
9.01 that is allocable to such REO Property) or otherwise, net of any portion of
such amounts (i) payable pursuant to Section 3.23(c) in respect of the proper
operation, management and maintenance of such REO Property or (ii) payable or
reimbursable to the Servicer pursuant to Section 3.23(d) for unpaid Servicing
Fees in respect of the related Mortgage Loan and unreimbursed Servicing Advances
and Advances in respect of such REO Property or the related Mortgage Loan, over
(b) the REO Imputed Interest in respect of such REO Property for such calendar
month.

                  "REO Property": A Mortgaged Property acquired by the Servicer
on behalf of REMIC I through foreclosure or deed-in-lieu of foreclosure, as
described in Section 3.23.

                  "Request for Release": A release signed by a Servicing
Officer, in the form of Exhibit E attached hereto.

                                      -41-

<PAGE>

                  "Reserve Interest Rate": With respect to any Interest
Determination Date, the rate per annum that the Trustee determines to be either
(i) the arithmetic mean (rounded upwards if necessary to the nearest whole
multiple of 1/16%) of the one-month U.S. dollar lending rates which New York
City banks selected by the Trustee are quoting on the relevant Interest
Determination Date to the principal London offices of leading banks in the
London interbank market or (ii) in the event that the Trustee can determine no
such arithmetic mean, the lowest one-month U.S. dollar lending rate which New
York City banks selected by the Trustee are quoting on such Interest
Determination Date to leading European banks.

                  "Residential Dwelling": Any one of the following: (i) a
detached one-family dwelling, (ii) a detached two- to four-family dwelling,
(iii) a one-family dwelling unit in a Fannie Mae eligible condominium project,
(iv) a manufactured home, or (v) a detached one-family dwelling in a planned
unit development, none of which is a co-operative or mobile home.

                  "Residual Certificate": Any one of the Class R Certificates
and the Class R-X Certificates.

                  "Residual Interest": The sole class of "residual interests" in
a REMIC within the meaning of Section 860G(a)(2) of the Code.

                  "Responsible Officer": When used with respect to the Trustee,
the Chairman or Vice Chairman of the Board of Directors or Trustees, the
Chairman or Vice Chairman of the Executive or Standing Committee of the Board of
Directors or Trustees, the President, the Chairman of the Committee on Trust
Matters, any vice president, any assistant vice president, the Secretary, any
assistant secretary, the Treasurer, any assistant treasurer, the Cashier, any
assistant cashier, any trust officer or assistant trust officer, the Controller
and any assistant controller or any other officer of the Trustee, customarily
performing functions similar to those performed by any of the above designated
officers and, with respect to a particular matter, to whom such matter is
referred because of such officer's knowledge of and familiarity with the
particular subject.

                  "S&P": Standard & Poor's Ratings Services, a division of the
McGraw-Hill Companies, Inc., or its successor in interest.

                  "Seller": UBS Warburg Real Estate Securities Inc. or its
successor in interest, in its capacity as seller under the Mortgage Loan
Purchase Agreement.

                  "Servicer": Chase Manhattan Mortgage Corporation or any
successor servicer appointed as herein provided, in its capacity as Servicer
hereunder.

                  "Servicer Event of Default": One or more of the events
described in Section 7.01.

                  "Servicer Prepayment Charge Payment Amount": The amounts
payable by the Servicer in respect of any Prepayment Charges pursuant to Section
2.05 or Section 3.01.

                  "Servicer Remittance Date": With respect to any Distribution
Date, by 1:00 p.m. New York time the Business Day immediately preceding the
related Distribution Date.

                                      -42-

<PAGE>

                  "Servicing Advances": All customary, reasonable and necessary
"out of pocket" costs and expenses (including reasonable attorneys' fees and
expenses) incurred by the Servicer in the performance of its servicing
obligations, including, but not limited to, the cost of (i) the preservation,
restoration, inspection and protection of the Mortgaged Property, (ii) any
enforcement or judicial proceedings, including foreclosures, in respect of a
particular Mortgage Loan, including any expenses incurred in relation to any
such proceedings that result from the Mortgage Loan being registered on the
MERS(R) System, (iii) the management and liquidation of the REO Property and
(iv) compliance with the obligations under Sections 3.01, 3.09, 3.16, and 3.23.

                  "Servicing Fee": With respect to each Mortgage Loan and for
any calendar month, an amount equal to one month's interest (or in the event of
any payment of interest which accompanies a Principal Prepayment in full or in
part made by the Mortgagor during such calendar month, interest for the number
of days covered by such payment of interest) at the Servicing Fee Rate on the
same principal amount on which interest on such Mortgage Loan accrues for such
calendar month. A portion of such Servicing Fee may be retained by any
Sub-Servicer as its servicing compensation.

                  "Servicing Fee Rate": 0.50% per annum.

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

                  "Servicing Standard": Shall mean the standards set forth in
Section 3.01.

                  "Servicing Transfer Costs": Shall mean all reasonable costs
and expenses incurred by the Trustee in connection with the transfer of
servicing from a predecessor servicer, including, without limitation, any
reasonable costs or expenses associated with the complete transfer of all
servicing data and the completion, correction or manipulation of such servicing
data as may be required by the Trustee to correct any errors or insufficiencies
in the servicing data or otherwise to enable the Trustee to service the Mortgage
Loans properly and effectively.

                  "Single Certificate": With respect to any Class of
Certificates (other than the Class P Certificates and the Residual
Certificates), a hypothetical Certificate of such Class evidencing a Percentage
Interest for such Class corresponding to an initial Certificate Principal
Balance of $1,000. With respect to the Class P Certificates and the Residual
Certificates, a hypothetical Certificate of such Class evidencing a 100%
Percentage Interest in such Class.

                  "Startup Day": With respect to each Trust REMIC, the day
designated as such pursuant to Section 10.01(b) hereof.

                  "Stated Principal Balance": With respect to any Mortgage Loan:
(a) as of any date of determination up to but not including the Distribution
Date on which the proceeds, if any, of a Liquidation Event with respect to such
Mortgage Loan would be distributed, the Cut-off Date Principal Balance of such
Mortgage Loan, as shown in the Mortgage Loan Schedule, minus the sum

                                      -43-

<PAGE>

of (i) the principal portion of each Monthly Payment due on a Due Date
subsequent to the Cut-off Date, to the extent received from the Mortgagor or
advanced by the Servicer and distributed pursuant to Section 4.01 on or before
such date of determination, (ii) all Principal Prepayments received after the
Cut-off Date, to the extent distributed pursuant to Section 4.01 on or before
such date of determination, (iii) all Liquidation Proceeds and Insurance
Proceeds applied by the Servicer as recoveries of principal in accordance with
the provisions of Section 3.16, to the extent distributed pursuant to Section
4.01 on or before such date of determination, and (iv) any Realized Loss
incurred with respect thereto as a result of a Deficient Valuation made during
or prior to the Prepayment Period for the most recent Distribution Date
coinciding with or preceding such date of determination; and (b) as of any date
of determination coinciding with or subsequent to the Distribution Date on which
the proceeds, if any, of a Liquidation Event with respect to such Mortgage Loan
would be distributed, zero. With respect to any REO Property: (a) as of any date
of determination up to but not including the Distribution Date on which the
proceeds, if any, of a Liquidation Event with respect to such REO Property would
be distributed, an amount (not less than zero) equal to the Stated Principal
Balance of the related Mortgage Loan as of the date on which such REO Property
was acquired on behalf of REMIC I, minus the sum of (i) if such REO Property was
acquired before the Distribution Date in any calendar month, the principal
portion of the Monthly Payment due on the Due Date in the calendar month of
acquisition, to the extent advanced by the Servicer and distributed pursuant to
Section 4.01 on or before such date of determination, and (ii) the aggregate
amount of REO Principal Amortization in respect of such REO Property for all
previously ended calendar months, to the extent distributed pursuant to Section
4.01 on or before such date of determination; and (b) as of any date of
determination coinciding with or subsequent to the Distribution Date on which
the proceeds, if any, of a Liquidation Event with respect to such REO Property
would be distributed, zero.

                  "Stepdown Date": The earlier to occur of (i) the Distribution
Date on which the aggregate Certificate Principal Balance of the Class A
Certificates has been reduced to zero and (ii) the later to occur of (x) the
Distribution Date occurring in October 2006 and (y) the first Distribution Date
on which the Credit Enhancement Percentage (calculated for this purpose only
after taking into account payments of principal on the Mortgage Loans but prior
to distribution of the Group I Principal Distribution Amount and the Group II
Principal Distribution Amount to the Certificates then entitled to distributions
of principal on such Distribution Date) is equal to or greater than 39.00%.

                  "Sub-Servicer": Any Person with which the Servicer has entered
into a Sub-Servicing Agreement and which meets the qualifications of a
Sub-Servicer pursuant to Section 3.02.

                  "Sub-Servicing Account": An account established by a
Sub-Servicer which meets the requirements set forth in Section 3.08 and is
otherwise acceptable to the Servicer.

                  "Sub-Servicing Agreement": The written contract between the
Servicer and a Sub- Servicer relating to servicing and administration of certain
Mortgage Loans as provided in Section 3.02.

                  "Substitution Adjustment Amount": As defined in Section
2.03(b).

                                      -44-

<PAGE>

                  "Tax Returns": The federal income tax return on Internal
Revenue Service Form 1066, U.S. Real Estate Mortgage Investment Conduit Income
Tax Return, including Schedule Q thereto, Quarterly Notice to Residual Interest
Holders of REMIC Taxable Income or Net Loss Allocation, or any successor forms,
to be filed on behalf of the Trust Fund due to the classification of portions
thereof as REMICs under the REMIC Provisions, together with any and all other
information reports or returns that may be required to be furnished to the
Certificateholders or filed with the Internal Revenue Service or any other
governmental taxing authority under any applicable provisions of federal, state
or local tax laws.

                  "Telerate Page 3750": The display designated as page "3750" on
the Dow Jones Telerate Capital Markets Report (or such other page as may replace
page 3750 on that report for the purpose of displaying London interbank offered
rates of major banks).

                  "Termination Price": As defined in Section 9.01.

                  "Terminator": As defined in Section 9.01.

                  "Three Month Rolling Delinquency Percentage": With respect to
the Mortgage Loans and any Distribution Date, the average for the three most
recent calendar months of the fraction, expressed as a percentage, the numerator
of which is (x) the sum (without duplication) of the aggregate of the Principal
Balances of all Mortgage Loans that are (i) 60 or more days Delinquent, (ii) in
bankruptcy and 60 or more days Delinquent, (iii) in foreclosure and 60 or more
days Delinquent or (iv) REO Properties, and the denominator of which is (y) the
sum of the Principal Balances of the Mortgage Loans, in the case of both (x) and
(y), as of the Close of Business on the last Business Day of each of the three
most recent calendar months.

                  "Transfer": Any direct or indirect transfer, sale, pledge,
hypothecation, or other form of assignment of any Ownership Interest in a
Certificate.

                  "Transferee": Any Person who is acquiring by Transfer any
Ownership Interest in a Certificate.

                  "Transferor": Any Person who is disposing by Transfer of any
Ownership Interest in a Certificate.

                  "Trigger Event": A Trigger Event is in effect with respect to
any Distribution Date on or after the Stepdown Date if:

                  (a) the Delinquency Percentage exceeds 16.50%; or

                  (b) the aggregate amount of Realized Losses incurred since the
Cut-off Date through the last day of the related Due Period divided by the
aggregate principal balance of the Mortgage Loans as of the Cut-off Date exceeds
the applicable percentages set forth below with respect to such Distribution
Date:

                                      -45-

<PAGE>

      DISTRIBUTION DATE OCCURRING IN              PERCENTAGE
      ------------------------------              ----------
October 2006 through September 2007                  2.75%
October 2007 through September 2008                  4.50%
October 2008 through September 2009                  5.75%
October 2009 through September 2010                  6.50%
October 2010 and thereafter                          6.75%

                  "Trust Fund": Collectively, all of the assets of REMIC I,
REMIC II, REMIC III, REMIC IV, the Net WAC Rate Carryover Reserve Account and
the other assets conveyed by the Depositor to the Trustee pursuant to Section
2.01.

                  "Trust REMIC": Any of REMIC I, REMIC II, REMIC III or REMIC
IV.

                  "Trustee": U.S. Bank National Association, a national banking
association, or its successor in interest, or any successor trustee appointed as
herein provided.

                  "Trustee Fee": The amount payable to the Trustee on each
Distribution Date pursuant to Section 8.05 as compensation for all services
rendered by it in the execution of the trust hereby created and in the exercise
and performance of any of the powers and duties of the Trustee hereunder, which
amount shall equal the Trustee Fee Rate accrued for one month on the aggregate
Principal Balance of the Mortgage Loans and any REO Properties as of the second
preceding Due Date (or, in the case of the initial Distribution Date, as of the
Cut-off Date), calculated on the basis of a 360-day year consisting of twelve
30-day months.

                  "Trustee Fee Rate": 0.0185% per annum.

                  "Uncertificated Balance": The amount of any REMIC I Regular
Interest outstanding as of any date of determination. As of the Closing Date,
the Uncertificated Balance of each REMIC I Regular Interest shall equal the
amount set forth in the Preliminary Statement hereto as its initial
uncertificated balance. On each Distribution Date, the Uncertificated Balance of
each REMIC I Regular Interest shall be reduced by all distributions of principal
made on such REMIC I Regular Interest on such Distribution Date pursuant to
Section 4.01 and, if and to the extent necessary and appropriate, shall be
further reduced on such Distribution Date by Realized Losses as provided in
Section 4.04. The Uncertificated Balance of REMIC I Regular Interest I-LTZZ
shall be increased by interest deferrals as provided in Section 4.01(a)(1)(i).
The Uncertificated Balance of each REMIC I Regular Interest shall never be less
than zero. With respect to the Class CE Interest as of any date of
determination, an amount equal to the excess, if any, of (A) the then aggregate
Uncertificated Principal Balances of the REMIC I Regular Interests over (B) the
then aggregate Certificate Principal Balances of the Class A Certificates,
Mezzanine Certificates and the Class P Interest then outstanding.

                  "Uncertificated Interest": With respect to any REMIC I Regular
Interest for any Distribution Date, one month's interest at the REMIC I
Remittance Rate applicable to such REMIC I Regular Interest for such
Distribution Date, accrued on the Uncertificated Balance thereof

                                      -46-

<PAGE>

immediately prior to such Distribution Date. Uncertificated Interest in respect
of any REMIC I Regular Interest shall accrue on the basis of a 360-day year
consisting of twelve 30-day months. Uncertificated Interest with respect to each
Distribution Date, as to any REMIC I Regular Interest, shall be reduced by an
amount equal to the sum of (a) the aggregate Prepayment Interest Shortfall, if
any, for such Distribution Date to the extent not covered by payments pursuant
to Section 3.24 and (b) the aggregate amount of any Relief Act Interest
Shortfall, if any allocated, in each case, to such REMIC I Regular Interest
pursuant to Section 1.02. In addition, Uncertificated Interest with respect to
each Distribution Date, as to any REMIC I Regular Interest shall be reduced by
Realized Losses, if any, allocated to such REMIC I Regular Interest pursuant to
Section 1.02 and Section 4.04.

                  "Underwriters' Exemption": As defined in the Prospectus
Supplement.

                  "Uninsured Cause": Any cause of damage to a Mortgaged Property
such that the complete restoration of such property is not fully reimbursable by
the hazard insurance policies required to be maintained pursuant to Section
3.14.

                  "United States Person": A citizen or resident of the United
States, a corporation, partnership or other entity created or organized in, or
under the laws of, the United States, any state thereof or, District of Columbia
(except, in the case of a partnership, to the extent provided in regulations)
provided that, for purposes solely of the restrictions on the transfer of Class
R Certificates, no partnership or other entity treated as a partnership for
United States federal income tax purposes shall be treated as a United States
Person unless all persons that own an interest in such partnership either
directly or through any entity that is not a corporation for United States
federal income tax purposes are required by the applicable operative agreement
to be United States Persons or an estate whose income is subject to United
States federal income tax regardless of its source, or a trust if a court within
the United States is able to exercise primary supervision over the
administration of the trust and one or more United States persons have the
authority to control all substantial decisions of the trust. To the extent
prescribed in regulations by the Secretary of the Treasury, which have not yet
been issued, a trust which was in existence on August 20, 1996 (other than a
trust treated as owned by the grantor under subpart E of part I of subchapter J
of chapter 1 of the Code), and which was treated as a United States person on
August 20, 1996 may elect to continue to be treated as a United States person
notwithstanding the previous sentence. The term "United States" shall have the
meaning set forth in Section 7701 of the Code.

                  "Unpaid Interest Shortfall Amount": With respect to the Class
A Certificates and the Mezzanine Certificates and (i) the first Distribution
Date, zero, and (ii) any Distribution Date after the first Distribution Date,
the amount, if any, by which (a) the sum of (1) the Monthly Interest
Distributable Amount for such Class for the immediately preceding Distribution
Date and (2) the outstanding Unpaid Interest Shortfall Amount, if any, for such
Class for such preceding Distribution Date exceeds (b) the aggregate amount
distributed on such Class in respect of interest pursuant to clause (a) of this
definition on such preceding Distribution Date, plus interest on the amount of
interest due but not paid on the Certificates of such Class on such preceding
Distribution Date, to the extent permitted by law, at the Pass-Through Rate for
such Class for the related Accrual Period.

                  "Value": With respect to any Mortgage Loan, and the related
Mortgaged Property, the lesser of:

                                      -47-

<PAGE>

         (i)      the lesser of (a) the value thereof as determined by an
                  appraisal made for the originator of the Mortgage Loan at the
                  time of origination of the Mortgage Loan by an appraiser who
                  met the minimum requirements of Fannie Mae and Freddie Mac,
                  and (b) the value thereof as determined by a review appraisal
                  conducted by the Originator in the event any such review
                  appraisal determines an appraised value more than 10% lower
                  than the value thereof, in the case of a Mortgaged Loan with a
                  Loan- to-Value Ratio less than or equal to 80%, or more than
                  5% lower than the value thereof, in the case of a Mortgage
                  Loan with a Loan-to-Value Ratio greater than 80%, as
                  determined by the appraisal referred to in clause (i)(a)
                  above; and

         (ii)     the purchase price paid for the related Mortgaged Property by
                  the Mortgagor with the proceeds of the Mortgage Loan;
                  provided, however, that in the case of a refinanced Mortgage
                  Loan (which is a Mortgage Loan the proceeds of which were not
                  used to purchase the related Mortgaged Property) or a Mortgage
                  Loan originated in connection with a "lease option purchase"
                  if the "lease option purchase price" was set 12 months or more
                  prior to origination, such value of the Mortgaged Property is
                  based solely upon clause (i) above..

                  "Voting Rights": The portion of the voting rights of all of
the Certificates which is allocated to any Certificate. With respect to any date
of determination, 98% of all Voting Rights will be allocated among the holders
of the Class A Certificates, the Mezzanine Certificates and the Class CE
Certificates in proportion to the then outstanding Certificate Principal
Balances of their respective Certificates, 1% of all Voting Rights will be
allocated to the holders of the Class P Certificates and 1% of all Voting Rights
will be allocated among the holders of the Residual Certificates. The Voting
Rights allocated to each Class of Certificate shall be allocated among Holders
of each such Class in accordance with their respective Percentage Interests as
of the most recent Record Date.

                  SECTION 1.02. Allocation of Certain Interest Shortfalls.

                  For purposes of calculating the amount of the Monthly Interest
Distributable Amount for the Class A Certificates, the Mezzanine Certificates
and the Class CE Certificates for any Distribution Date, (1) the aggregate
amount of any Prepayment Interest Shortfalls (to the extent not covered by
payments by the Servicer pursuant to Section 3.24) and any Relief Act Interest
Shortfall incurred in respect of the Mortgage Loans for any Distribution Date
shall be allocated first, to the Class CE Certificates based on, and to the
extent of, one month's interest at the then applicable respective Pass-Through
Rate on the respective Notional Amount of each such Certificate and, thereafter,
among the Class A Certificates and the Mezzanine Certificates on a PRO RATA
basis based on, and to the extent of, one month's interest at the then
applicable respective Pass-Through Rate on the respective Certificate Principal
Balance of each such Certificate and (2) the aggregate amount of any Realized
Losses and Net WAC Rate Carryover Amounts incurred for any Distribution Date
shall be allocated to the Class CE Certificates based on, and to the extent of,
one month's interest at the then applicable respective Pass-Through Rate on the
respective Notional Amount of each such Certificate.

                  For purposes of calculating the amount of Uncertificated
Interest for the REMIC I

                                      -48-

<PAGE>

Regular Interests for any Distribution Date:

         (A)      The REMIC I Marker Allocation Percentage of the aggregate
                  amount of any Prepayment Interest Shortfalls (to the extent
                  not covered by payments by the Servicer pursuant to Section
                  3.24) and the REMIC I Marker Allocation Percentage of the
                  aggregate amount of any Relief Act Interest Shortfalls
                  incurred in respect of the Mortgage Loans for any Distribution
                  Date shall be allocated first, to Uncertificated Interest
                  payable to REMIC I Regular Interest I-LTAA and REMIC I Regular
                  Interest I-LTZZ up to an aggregate amount equal to the REMIC I
                  Interest Loss Allocation Amount, 98% and 2%, respectively, and
                  thereafter among REMIC I Regular Interest I-LTA1, REMIC I
                  Regular Interest I-LTA3A, REMIC I Regular Interest I-LTA3B,
                  REMIC I Regular Interest I-LTM1, REMIC I Regular Interest
                  I-LTM2, REMIC I Regular Interest I-LTM3, REMIC I Regular
                  Interest I-LTM4, REMIC I Regular Interest I-LTM5, REMIC I
                  Regular Interest I-LTM6 and REMIC I Regular Interest I-LTZZ
                  PRO RATA based on, and to the extent of, one month's interest
                  at the then applicable respective Pass-Through Rate on the
                  respective Uncertificated Balance of each such REMIC I Regular
                  Interest; and

         (B)      The REMIC I Sub WAC Allocation Percentage of the aggregate
                  amount of any Prepayment Interest Shortfalls (to the extent
                  not covered by payments by the Servicer pursuant to Section
                  3.24) and the REMIC I Sub WAC Allocation Percentage of the
                  aggregate amount of any Relief Act Interest Shortfalls
                  incurred in respect of the Mortgage Loans for any Distribution
                  Date shall be allocated first, to Uncertificated Interest
                  payable to REMIC I Regular Interest I-LT1SUB, REMIC I Regular
                  Interest I-LT1GRP, REMIC I Regular Interest I-LT2SUB, REMIC I
                  Regular Interest I- LT2GRP and REMIC I Regular Interest
                  I-LTXX, pro rata based on, and to the extent of, one month's
                  interest at the then applicable respective Pass-Through Rate
                  on the respective Uncertificated Balance of each such REMIC I
                  Regular Interest.

                  SECTION 1.03 Rights of the NIMS Insurer.

                  Each of the rights of the NIMS Insurer set forth in this
Agreement shall exist so long as (i) the NIMS Insurer has undertaken to
guarantee certain payments of notes issued pursuant to the Indenture and (ii)
the notes issued pursuant to the Indenture remain outstanding or the NIMS
Insurer is owed amounts in respect of its guarantee of payment on such notes;
provided, however, the NIMS Insurer shall not have any rights hereunder (except
pursuant to Section 11.01 and any rights to indemnification hereunder in the
case of clause (ii) below) so long as (i) the NIMS Insurer has not undertaken to
guarantee certain payments of notes issued pursuant to the Indenture or (ii) any
default has occurred and is continuing under the insurance policy issued by the
NIMS Insurer with respect to such notes.

                                      -49-

<PAGE>

                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                        ORIGINAL ISSUANCE OF CERTIFICATES

                  SECTION 2.01. Conveyance of the Mortgage Loans.

                  The Depositor, concurrently with the execution and delivery
hereof, does hereby transfer, assign, set over and otherwise convey to the
Trustee without recourse, for the benefit of the Certificateholders, all the
right, title and interest of the Depositor, including any security interest
therein for the benefit of the Depositor, in and to the Mortgage Loans
identified on the Mortgage Loan Schedule, the rights of the Depositor under the
Mortgage Loan Purchase Agreement, and all other assets included or to be
included in REMIC I. Such assignment includes all interest and principal
received by the Depositor or the Servicer on or with respect to the Mortgage
Loans (other than payments of principal and interest due on such Mortgage Loans
on or before the Cut-off Date). The Depositor herewith delivers to the Trustee
an executed original Mortgage Loan Purchase Agreement.

                  In connection with such transfer and assignment, the Depositor
does hereby deliver to, and deposit with, the Trustee (or the Custodian on
behalf of the Trustee) the following documents or instruments with respect to
each Mortgage Loan so transferred and assigned (a "Mortgage File"):

                  (i) the original Mortgage Note, endorsed in blank or in the
         following form: "Pay to the order of U.S. Bank National Association, as
         Trustee under the applicable agreement, without recourse," with all
         prior and intervening endorsements showing a complete chain of
         endorsement from the originator to the Person so endorsing to the
         Trustee;

                  (ii) the original Mortgage, noting the presence of the MIN of
         the Mortgage Loan and language indicating that the Mortgage Loan is a
         MOM Loan if the Mortgage Loan is a MOM Loan, with evidence of recording
         thereon, and the original recorded power of attorney, if the Mortgage
         was executed pursuant to a power of attorney, with evidence of
         recording thereon;

                  (iii) unless the Mortgage Loan is registered on the MERS(R)
         System, an original Assignment in blank;

                  (iv) the original recorded Assignment or Assignments showing a
         complete chain of assignment from the originator to the Person
         assigning the Mortgage to the Trustee (or to MERS, if the Mortgage Loan
         is registered on the MERS(R) System and noting the presence of the MIN)
         as contemplated by the immediately preceding clause (iii);

                  (v) the original or copies of each assumption, modification,
         written assurance or substitution agreement, if any; and

                  (vi) the original lender's title insurance policy, together
         with all endorsements or riders that were issued with or subsequent to
         the issuance of such policy, insuring the priority

                                      -50-

<PAGE>

         of the Mortgage as a first or second lien on the Mortgaged Property
         represented therein as a fee interest vested in the Mortgagor, or in
         the event such original title policy is unavailable, a written
         commitment or uniform binder or preliminary report of title issued by
         the title insurance or escrow company.

                  With respect to a maximum of approximately 2.0% of the
Mortgage Loans, by outstanding principal balance of the Mortgage Loans as of the
Cut-off Date, if any original Mortgage Note referred to in Section 2.01(i) above
cannot be located, the obligations of the Depositor to deliver such documents
shall be deemed to be satisfied upon delivery to the Trustee (or the Custodian
on behalf of the Trustee) of a photocopy of such Mortgage Note, if available,
with a lost note affidavit substantially in the form of Exhibit I attached
hereto. If any of the original Mortgage Notes for which a lost note affidavit
was delivered to the Trustee (or the Custodian on behalf of the Trustee) is
subsequently located, such original Mortgage Note shall be delivered to the
Trustee (or the Custodian on behalf of the Trustee) within three Business Days.

                  Except with respect to any Mortgage Loan for which MERS is
identified on the Mortgage or on a properly recorded assignment of the Mortgage
as the mortgagee of record, the Trustee shall promptly (within sixty Business
Days following the later of the Closing Date and the date of receipt by the
Trustee or the Custodian of the recording information for a Mortgage, but in no
event later than ninety days following the Closing Date) enforce the obligations
of the Originator pursuant to the terms of the Mortgage Loan Purchase Agreement
to submit or cause to be submitted for recording, at no expense to the Trust
Fund, the Trustee, the Custodian or the Depositor, in the appropriate public
office for real property records, each Assignment referred to in Sections
2.01(iii) and (iv) above and in connection therewith, the Trustee shall enforce
the obligation of the Originator pursuant to the terms of the Mortgage Loan
Purchase Agreement to execute each original Assignment in the following form:
"U.S. Bank National Association, as Trustee under the applicable agreement." In
the event that any such Assignment is lost or returned unrecorded because of a
defect therein, the Trustee shall enforce the obligation of the Originator
pursuant to the Mortgage Loan Purchase Agreement to promptly prepare or cause to
be prepared a substitute Assignment or cure or cause to be cured such defect, as
the case may be, and thereafter cause each such Assignment to be duly recorded.

                  In connection with the assignment of any Mortgage Loan
registered on the MERS(R) System, the Depositor further agrees that it will
cause, within 30 Business Days after the Closing Date, the MERS(R) System to
indicate that such Mortgage Loans have been assigned by the Depositor to the
Trustee in accordance with this Agreement for the benefit of the
Certificateholders by including (or deleting, in the case of Mortgage Loans
which are repurchased in accordance with this Agreement) in such computer files
(a) the code in the field which identifies the specific Trustee and (b) the code
in the field "Pool Field" which identifies the series of the Certificates issued
in connection with such Mortgage Loans. The Depositor further agrees that it
will not, and will not permit the Servicer to, and the Servicer agrees that it
will not, alter the codes referenced in this paragraph with respect to any
Mortgage Loan during the term of this Agreement unless and until such Mortgage
Loan is repurchased in accordance with the terms of this Agreement.

                  If any of the documents referred to in Sections 2.01(ii),
(iii) or (iv) above has, as of the Closing Date, been submitted for recording
but either (x) has not been returned from the

                                      -51-

<PAGE>

applicable public recording office or (y) has been lost or such public recording
office has retained the original of such document, the obligations of the
Depositor to deliver such documents shall be deemed to be satisfied upon (1)
delivery to the Trustee (or the Custodian on behalf of the Trustee) of a copy of
each such document certified by the Originator in the case of (x) above or the
applicable public recording office in the case of (y) above to be a true and
complete copy of the original that was submitted for recording and (2) if such
copy is certified by the Originator, delivery to the Trustee (or the Custodian
on behalf of the Trustee) promptly upon receipt thereof of either the original
or a copy of such document certified by the applicable public recording office
to be a true and complete copy of the original. Pursuant to the Mortgage Loan
Purchase Agreement, notice shall be provided to the Trustee and the Rating
Agencies by the Originator if delivery pursuant to clause (2) above will be made
more than 180 days after the Closing Date.

                  If the original lender's title insurance policy was not
delivered pursuant to Section 2.01(vi) above, the Depositor shall deliver or
cause to be delivered to the Trustee (or the Custodian on behalf of the
Trustee), promptly after receipt thereof, the original lender's title insurance
policy. The Depositor shall deliver or cause to be delivered to the Trustee (or
the Custodian on behalf of the Trustee) promptly upon receipt thereof any other
original documents constituting a part of a Mortgage File received with respect
to any Mortgage Loan, including, but not limited to, any original documents
evidencing an assumption or modification of any Mortgage Loan.

                  All original documents relating to the Mortgage Loans that are
not delivered to the Trustee (or the Custodian on behalf of the Trustee) are and
shall be held by or on behalf of the Originator, the Seller, the Depositor or
the Servicer, as the case may be, in trust for the benefit of the Trustee on
behalf of the Certificateholders. In the event that any such original document
is required pursuant to the terms of this Section 2.01 to be a part of a
Mortgage File, such document shall be delivered promptly to the Trustee (or the
Custodian on behalf of the Trustee). Any such original document delivered to or
held by the Depositor that is not required pursuant to the terms of this Section
to be a part of a Mortgage File, shall be delivered promptly to the Servicer.

                  SECTION 2.02. Acceptance of REMIC I by Trustee.

                  The Trustee acknowledges receipt (or receipt by the Custodian
as the duly appointed agent of the Trustee), subject to the provisions of
Section 2.01 and subject to any exceptions noted on the exception report
described in the next paragraph below, the documents referred to in Section 2.01
(other than such documents described in Section 2.01(v)) above and all other
assets included in the definition of "REMIC I" under clauses (i), (iii), (iv)
and (v) (to the extent of amounts deposited into the Distribution Account) and
declares that it holds and will hold such documents and the other documents
delivered to it constituting a Mortgage File, and that it holds or will hold all
such assets and such other assets included in the definition of "REMIC I" in
trust for the exclusive use and benefit of all present and future
Certificateholders.

                  The Trustee (or the Custodian on behalf of the Trustee) agrees
to execute and deliver to the Depositor and the NIMS Insurer on or prior to the
Closing Date an acknowledgment of receipt of the original Mortgage Note (with
any exceptions noted), substantially in the form attached as Exhibit C-3 hereto.

                                      -52-

<PAGE>

                  The Trustee (or the Custodian on behalf of the Trustee)
agrees, for the benefit of the Certificateholders and the NIMS Insurer, to
review each Mortgage File and, within 45 days of the Closing Date, to certify in
substantially the form attached hereto as Exhibit C-1 (or cause the Custodian to
certify in the form of the Initial Certification attached to the Custodial
Agreement) that, as to each Mortgage Loan listed in the Mortgage Loan Schedule
(other than any Mortgage Loan paid in full or any Mortgage Loan specifically
identified in the exception report annexed thereto as not being covered by such
certification), (i) all documents constituting part of such Mortgage File (other
than such documents described in Section 2.01(v)) required to be delivered to it
pursuant to this Agreement are in its possession, (ii) such documents have been
reviewed by it or the Custodian and appear regular on their face and relate to
such Mortgage Loan and (iii) based on its or the Custodian's examination and
only as to the foregoing, the information set forth in the Mortgage Loan
Schedule that corresponds to items (1), (3), (12), (15) and (18) of the
definition of "Mortgage Loan Schedule" accurately reflects information set forth
in the Mortgage File. It is herein acknowledged that, in conducting such review,
the Trustee (or the Custodian on behalf of the Trustee) is under no duty or
obligation (i) to inspect, review or examine any such documents, instruments,
certificates or other papers to determine whether they are genuine, enforceable,
or appropriate for the represented purpose or whether they have actually been
recorded or that they are other than what they purport to be on their face or
(ii) to determine whether any Mortgage File should include any of the documents
specified in clause (v) of Section 2.01.

                  Prior to the first anniversary date of this Agreement the
Trustee shall deliver to the Depositor, the NIMS Insurer and the Servicer a
final certification in the form annexed hereto as Exhibit C-2 (or shall cause
the Custodian to deliver to the Depositor, the NIMS Insurer and the Servicer a
final certification in the form attached to the Custodial Agreement) evidencing
the completeness of the Mortgage Files, with any applicable exceptions noted
thereon, and the Servicer shall forward a copy thereof to any Sub-Servicer.

                  If in the process of reviewing the Mortgage Files and making
or preparing, as the case may be, the certifications referred to above, the
Trustee (or the Custodian on behalf of the Trustee) finds any document or
documents constituting a part of a Mortgage File to be missing or defective in
any material respect, at the conclusion of its review the Trustee (or the
Custodian on behalf of the Trustee) shall so notify the Depositor, the NIMS
Insurer and the Servicer. In addition, upon the discovery by the Depositor, the
NIMS Insurer, the Servicer or the Trustee of a breach of any of the
representations and warranties made by the Originator or the Seller in the
Mortgage Loan Purchase Agreement in respect of any Mortgage Loan which
materially adversely affects such Mortgage Loan or the interests of the related
Certificateholders in such Mortgage Loan, the party discovering such breach
shall give prompt written notice to the other parties.

                  The Trustee (or the Custodian on behalf of the Trustee) shall,
at the written request and expense of any Certificateholder, provide a written
report to such Certificateholder of all Mortgage Files released to the Servicer
for servicing purposes.

                  The Depositor and the Trustee intend that the assignment and
transfer herein contemplated constitute a sale of the Mortgage Loans, the
related Mortgage Notes and the related documents, conveying good title thereto
free and clear of any liens and encumbrances, from the Depositor to the Trustee
in trust for the benefit of the Certificateholders and that such property not

                                      -53-

<PAGE>

be part of the Depositor's estate or property of the Depositor in the event of
any insolvency by the Depositor. In the event that such conveyance is deemed to
be, or to be made as security for, a loan, the parties intend that the Depositor
shall be deemed to have granted and does hereby grant to the Trustee a first
priority perfected security interest in all of the Depositor's right, title and
interest in and to the Mortgage Loans, the related Mortgage Notes and the
related documents, and that this Agreement shall constitute a security agreement
under applicable law.

                  SECTION 2.03. Repurchase or Substitution of Mortgage Loans by
                                the Originator or the Seller.

                  (a) Upon discovery or receipt of notice of any materially
defective document in, or that a document is missing from, a Mortgage File or of
the breach by the Originator or the Seller of any representation, warranty or
covenant under the Mortgage Loan Purchase Agreement (including any
representation, warranty or covenant regarding the Prepayment Charge Schedule)
in respect of any Mortgage Loan that materially adversely affects the value of
such Mortgage Loan or the interest therein of the Certificateholders, the
Trustee shall promptly notify the Originator, the NIMS Insurer, the Seller and
the Servicer of such defect, missing document or breach and request that the
Originator or the Seller, as applicable, deliver such missing document or cure
such defect or breach within 90 days from the date the Originator or the Seller,
as applicable, was notified of such missing document, defect or breach, and if
the Originator or the Seller, as applicable, does not deliver such missing
document or cure such defect or breach in all material respects during such
period, the Trustee shall enforce the obligations of the Originator or the
Seller, as applicable, under the Mortgage Loan Purchase Agreement to repurchase
such Mortgage Loan from REMIC I at the Purchase Price within 90 days after the
date on which the Originator or the Seller, as applicable, was notified (subject
to Section 2.03(c)) of such missing document, defect or breach, if and to the
extent that the Originator or the Seller, as applicable, is obligated to do so
under the Mortgage Loan Purchase Agreement. The Purchase Price for the
repurchased Mortgage Loan shall be remitted to the Servicer for deposit in the
Collection Account and the Trustee (or the Custodian on behalf of the Trustee),
upon receipt of written certification from the Servicer of such deposit, shall
release to the Originator or the Seller, as applicable, the related Mortgage
File and the Trustee (or the Custodian on behalf of the Trustee) shall execute
and deliver such instruments of transfer or assignment, in each case without
recourse, as the Originator or the Seller, as applicable, shall furnish to it
and as shall be necessary to vest in the Originator or the Seller, as
applicable, any Mortgage Loan released pursuant hereto. In furtherance of the
foregoing, if the Originator or the Seller, as applicable, is not a member of
MERS and repurchases a Mortgage Loan which is registered on the MERS(R) System,
the Originator or the Seller, as applicable, at its own expense and without any
right of reimbursement, shall cause MERS to execute and deliver an assignment of
the Mortgage in recordable form to transfer the Mortgage from MERS to the
Originator or the Seller, as applicable, and shall cause such Mortgage to be
removed from registration on the MERS(R) System in accordance with MERS' rules
and regulations. Neither the Trustee nor the Custodian shall have any further
responsibility with regard to such Mortgage File. In lieu of repurchasing any
such Mortgage Loan as provided above, if so provided in the Mortgage Loan
Purchase Agreement, the Originator or the Seller, as applicable, may cause such
Mortgage Loan to be removed from REMIC I (in which case it shall become a
Deleted Mortgage Loan) and substitute one or more Qualified Substitute Mortgage
Loans in the manner and subject to the limitations set forth in Section 2.03(b).
It is understood and agreed that the obligation of the Originator or the Seller,
as applicable, to cure or to

                                      -54-

<PAGE>

repurchase (or to substitute for) any Mortgage Loan as to which a document is
missing, a material defect in a constituent document exists or as to which such
a breach has occurred and is continuing shall constitute the sole remedy
respecting such omission, defect or breach available to the Trustee and the
Certificateholders.

                  (b) Any substitution of Qualified Substitute Mortgage Loans
for Deleted Mortgage Loans made pursuant to Section 2.03(a) must be effected
prior to the date which is two years after the Startup Day for REMIC I.

                  As to any Deleted Mortgage Loan for which the Originator or
the Seller, as applicable, substitutes a Qualified Substitute Mortgage Loan or
Loans, such substitution shall be effected by the Originator or the Seller, as
applicable, delivering to the Trustee (or the Custodian on behalf of the
Trustee), for such Qualified Substitute Mortgage Loan or Loans, the Mortgage
Note, the Mortgage, the Assignment to the Trustee, and such other documents and
agreements, with all necessary endorsements thereon, as are required by Section
2.01, together with an Officers' Certificate providing that each such Qualified
Substitute Mortgage Loan satisfies the definition thereof and specifying the
Substitution Adjustment Amount (as described below), if any, in connection with
such substitution. The Trustee (or the Custodian on behalf of the Trustee) shall
acknowledge receipt for such Qualified Substitute Mortgage Loan or Loans and,
within ten Business Days thereafter, review such documents as specified in
Section 2.02 and deliver to the Depositor, the NIMS Insurer and the Servicer,
with respect to such Qualified Substitute Mortgage Loan or Loans, a
certification substantially in the form attached hereto as Exhibit C-1, with any
applicable exceptions noted thereon. Within one year of the date of
substitution, the Trustee (or the Custodian on behalf of the Trustee) shall
deliver to the Depositor, the NIMS Insurer and the Servicer a certification
substantially in the form of Exhibit C-2 hereto with respect to such Qualified
Substitute Mortgage Loan or Loans, with any applicable exceptions noted thereon.
Monthly Payments due with respect to Qualified Substitute Mortgage Loans in the
month of substitution are not part of REMIC I and will be retained by the
Originator or the Seller, as applicable. For the month of substitution,
distributions to Certificateholders will reflect the Monthly Payment due on such
Deleted Mortgage Loan on or before the Due Date in the month of substitution,
and the Originator or the Seller, as applicable, shall thereafter be entitled to
retain all amounts subsequently received in respect of such Deleted Mortgage
Loan. The Depositor shall give or cause to be given written notice to the
Certificateholders and the NIMS Insurer that such substitution has taken place,
shall amend the Mortgage Loan Schedule to reflect the removal of such Deleted
Mortgage Loan from the terms of this Agreement and the substitution of the
Qualified Substitute Mortgage Loan or Loans and shall deliver a copy of such
amended Mortgage Loan Schedule to the Trustee, the Custodian and the NIMS
Insurer. Upon such substitution, such Qualified Substitute Mortgage Loan or
Loans shall constitute part of the Mortgage Pool and shall be subject in all
respects to the terms of this Agreement and the Mortgage Loan Purchase
Agreement, including, all applicable representations and warranties thereof
included in the Mortgage Loan Purchase Agreement.

                  For any month in which the Originator or the Seller, as
applicable, substitutes one or more Qualified Substitute Mortgage Loans for one
or more Deleted Mortgage Loans, the Servicer will determine the amount (the
"Substitution Adjustment Amount"), if any, by which the aggregate Purchase Price
of all such Deleted Mortgage Loans exceeds the aggregate of, as to each such
Qualified Substitute Mortgage Loan, the Principal Balance thereof as of the date
of substitution,

                                      -55-

<PAGE>

together with one month's interest on such Principal Balance at the applicable
Net Mortgage Rate, plus all outstanding Advances and Servicing Advances
(including Nonrecoverable Advances and Nonrecoverable Servicing Advances)
related thereto. On the date of such substitution, the Originator or the Seller,
as applicable, will deliver or cause to be delivered to the Servicer for deposit
in the Collection Account an amount equal to the Substitution Adjustment Amount,
if any, and the Trustee (or the Custodian on behalf of the Trustee), upon
receipt of the related Qualified Substitute Mortgage Loan or Loans and
certification by the Servicer of such deposit, shall release to the Originator
or the Seller, as applicable, the related Mortgage File or Files and the Trustee
(or the Custodian on behalf of the Trustee) shall execute and deliver such
instruments of transfer or assignment, in each case without recourse, the
Originator or the Seller, as applicable, shall deliver to it and as shall be
necessary to vest therein any Deleted Mortgage Loan released pursuant hereto.

                  In addition, the Originator or the Seller, as applicable,
shall obtain at its own expense and deliver to the Trustee and the NIMS Insurer
an Opinion of Counsel to the effect that such substitution will not cause (a)
any federal tax to be imposed on any Trust REMIC, including without limitation,
any federal tax imposed on "prohibited transactions" under Section 860F(a)(1) of
the Code or on "contributions after the startup date" under Section 860G(d)(1)
of the Code, or (b) any Trust REMIC to fail to qualify as a REMIC at any time
that any Certificate is outstanding.

                  (c) Upon discovery by the Depositor, the NIMS Insurer, the
Originator, the Seller, the Servicer or the Trustee that any Mortgage Loan does
not constitute a "qualified mortgage" within the meaning of Section 860G(a)(3)
of the Code, the party discovering such fact shall within two Business Days give
written notice thereof to the other parties. In connection therewith, the
Originator, the Seller or the Depositor shall repurchase or, subject to the
limitations set forth in Section 2.03(b), substitute one or more Qualified
Substitute Mortgage Loans for the affected Mortgage Loan within 90 days of the
earlier of discovery or receipt of such notice with respect to such affected
Mortgage Loan. Such repurchase or substitution shall be made by (i) the
Originator or the Seller, as the case may be, if the affected Mortgage Loan's
status as a non-qualified mortgage is or results from a breach of any
representation, warranty or covenant made by the Originator or the Seller, as
the case may be, under the Mortgage Loan Purchase Agreement, or (ii) the
Depositor, if the affected Mortgage Loan's status as a non-qualified mortgage is
a breach of no representation or warranty. Any such repurchase or substitution
shall be made in the same manner as set forth in Section 2.03(a). The Trustee
(or the Custodian on behalf of the Trustee) shall reconvey to the Depositor, the
Originator or the Seller, as the case may be, the Mortgage Loan to be released
pursuant hereto in the same manner, and on the same terms and conditions, as it
would a Mortgage Loan repurchased for breach of a representation or warranty.

                  SECTION 2.04. Reserved

                  SECTION 2.05. Representations, Warranties and Covenants of the
                                Servicer.

                  The Servicer hereby represents, warrants and covenants to the
Trustee, for the benefit of the Certificateholders and to the Depositor that as
of the Closing Date or as of such date specifically provided herein:

                  (i) The Servicer is duly organized, validly existing, and in
good standing under

                                      -56-

<PAGE>

         the laws of the jurisdiction of its formation and has all licenses
         necessary to carry on its business as now being conducted and is
         licensed, qualified and in good standing in the states where the
         Mortgaged Property is located (or is otherwise exempt under applicable
         law from such qualification) if the laws of such state require
         licensing or qualification in order to conduct business of the type
         conducted by the Servicer or to ensure the enforceability or validity
         of each Mortgage Loan; the Servicer has the power and authority to
         execute and deliver this Agreement and to perform in accordance
         herewith; the execution, delivery and performance of this Agreement
         (including all instruments of transfer to be delivered pursuant to this
         Agreement) and all documents and instruments contemplated hereby which
         are executed and delivered by the Servicer and the consummation of the
         transactions contemplated hereby have been duly and validly authorized;
         this Agreement and all documents and instruments contemplated hereby
         which are executed and delivered by the Servicer, assuming due
         authorization, execution and delivery by the other parties hereto,
         evidences the valid, binding and enforceable obligation of the
         Servicer, subject to applicable bankruptcy, insolvency, reorganization,
         moratorium or other similar laws affecting the enforcement of
         creditors' rights generally; and all requisite corporate action has
         been taken by the Servicer to make this Agreement and all documents and
         instruments contemplated hereby which are executed and delivered by the
         Servicer valid and binding upon the Servicer in accordance with its
         terms;

                  (ii) The consummation of the transactions contemplated by this
         Agreement are in the ordinary course of business of the Servicer and
         will not result in the breach of any term or provision of the charter
         or by-laws of the Servicer or result in the breach of any term or
         provision of, or conflict with or constitute a default under or result
         in the acceleration of any obligation under, any agreement, indenture
         or loan or credit agreement or other instrument to which the Servicer
         or its property is subject, or result in the violation of any law,
         rule, regulation, order, judgment or decree to which the Servicer or
         its property is subject;

                  (iii) The execution and delivery of this Agreement by the
         Servicer and the performance and compliance with its obligations and
         covenants hereunder do not require the consent or approval of any
         governmental authority or, if such consent or approval is required, it
         has been obtained;

                  (iv) [Reserved];

                  (v) [Reserved];

                  (vi) The Servicer does not believe, nor does it have any
         reason or cause to believe, that it cannot perform each and every
         covenant contained in this Agreement;

                  (vii) There is no action, suit, proceeding or investigation
         pending or, to its knowledge, threatened against the Servicer that,
         either individually or in the aggregate, (A) may result in any change
         in the business, operations, financial condition, properties or assets
         of the Servicer that might prohibit or materially and adversely affect
         the performance by such Servicer of its obligations under, or validity
         or enforceability of, this Agreement, or (B) may result in any material
         impairment of the right or ability of the Servicer to carry on its
         business

                                      -57-

<PAGE>

         substantially as now conducted, or (C) would draw into question the
         validity or enforceability of this Agreement or of any action taken or
         to be taken in connection with the obligations of the Servicer
         contemplated herein, or (D) would otherwise be likely to impair
         materially the ability of the Servicer to perform under the terms of
         this Agreement;

                  (viii) Neither this Agreement nor any information, certificate
         of an officer, statement furnished in writing or report delivered to
         the Trustee by the Servicer in connection with the transactions
         contemplated hereby contains any untrue statement of a material fact;

                  (ix) [Reserved];

                  (x) [Reserved];

                  (xi) The Servicer will not waive any Prepayment Charge unless
         it is waived in accordance with the standard set forth in Section 3.01;

                  (xii) The Servicer has accurately and fully reported, and will
         continue to accurately and fully report on a monthly basis, its
         borrower credit files to each of the three major national credit
         repositories in a timely manner; and

                  (xiii) The Servicer is a member of MERS in good standing, and
         will comply in all material respects with the rules and procedures of
         MERS in connection with the servicing of the Mortgage Loans that are
         registered with MERS.

                  It is understood and agreed that the representations,
warranties and covenants set forth in this Section 2.05 shall survive delivery
of the Mortgage Files to the Trustee or the Custodian and shall inure to the
benefit of the Trustee, the Depositor and the Certificateholders. Upon discovery
by any of the Depositor, the Servicer, the NIMS Insurer or the Trustee of a
breach of any of the foregoing representations, warranties and covenants which
materially and adversely affects the value of any Mortgage Loan or the interests
therein of the Certificateholders, the party discovering such breach shall give
prompt written notice (but in no event later than two Business Days following
such discovery) to the NIMS Insurer and the Trustee. Subject to Section 7.01,
unless such breach shall not be susceptible of cure within 90 days, the
obligation of the Servicer set forth in this Section 2.05 to cure breaches shall
constitute the sole remedy against the Servicer available to the
Certificateholders, the Depositor and the Trustee on behalf of the
Certificateholders respecting a breach of the representations, warranties and
covenants contained in this Section 2.05. Notwithstanding the foregoing, within
90 days of the earlier of discovery by the Servicer or receipt of notice by the
Servicer of the breach of the covenant of the Servicer set forth in Section
2.05(xi) above which materially and adversely affects the interests of the
Holders of the Class P Certificates in any Prepayment Charge, the Servicer shall
pay the amount of such waived Prepayment Charge, for the benefit of the Holders
of the Class P Certificates, by depositing such amount into the Collection
Account.

                  SECTION 2.06. Conveyance of REMIC Regular Interests and
                                Acceptance of REMIC I, REMIC II, REMIC III and
                                REMIC IV by the Trustee; Issuance of
                                Certificates.

                                      -58-

<PAGE>

                  (a) The Depositor, concurrently with the execution and
delivery hereof, does hereby transfer, assign, set over and otherwise convey in
trust to the Trustee without recourse all the right, title and interest of the
Depositor in and to the assets described in the definition of REMIC I for the
benefit of the holders of the REMIC I Regular Interests (which are
uncertificated) and the Class R Certificates (in respect of the Class R-I
Interest). The Trustee acknowledges receipt of the assets described in the
definition of REMIC I and declares that it holds and will hold the same in trust
for the exclusive use and benefit of the holders of the REMIC I Regular
Interests and the Class R Certificates (in respect of the Class R-I Interest).
The interests evidenced by the Class R-I Interest, together with the REMIC I
Regular Interests, constitute the entire beneficial ownership interest in REMIC
I.

                  (b) The Depositor, concurrently with the execution and
delivery hereof, does hereby transfer, assign, set over and otherwise convey in
trust to the Trustee without recourse all the right, title and interest of the
Depositor in and to the REMIC I Regular Interests (which are uncertificated) for
the benefit of the Holders of the REMIC II Regular Interests and the Class R
Certificates (in respect of the Class R-II Interest). The Trustee acknowledges
receipt of the REMIC I Regular Interests and declares that it holds and will
hold the same in trust for the exclusive use and benefit of the Holders of the
REMIC II Regular Interests and the Class R Certificates (in respect of the Class
R-II Interest). The interests evidenced by the Class R-II Interest, together
with the Regular Certificates (other than the Class CE Certificates and the
Class P Certificates), the Class CE Interest and the Class P Interest,
constitute the entire beneficial ownership interest in REMIC II.

                  (c) The Depositor, concurrently with the execution and
delivery hereof, does hereby transfer, assign, set over and otherwise convey in
trust to the Trustee without recourse all the right, title and interest of the
Depositor in and to the Class CE Interest (which is uncertificated) for the
benefit of the Holders of the Class CE Certificates and the Class R-X
Certificates (in respect of the Class R-III Interest). The Trustee acknowledges
receipt of the Class CE Interest and declares that it holds and will hold the
same in trust for the exclusive use and benefit of the Holders of the Class CE
Certificates and the Class R-X Certificates (in respect of the Class R-III
Interest). The interests evidenced by the Class R-III Interest, together with
the Class CE Certificates, constitute the entire beneficial ownership interest
in REMIC III.

                  (d) The Depositor, concurrently with the execution and
delivery hereof, does hereby transfer, assign, set over and otherwise convey in
trust to the Trustee without recourse all the right, title and interest of the
Depositor in and to the Class P Interest (which is uncertificated) for the
benefit of the Holders of the Class P Certificates and the Class R-X
Certificates (in respect of the Class R-IV Interest). The Trustee acknowledges
receipt of the Class P Interest and declares that it holds and will hold the
same in trust for the exclusive use and benefit of the Holders of the Class P
Certificates and the Class R-X Certificates (in respect of the Class R-IV
Interest). The interests evidenced by the Class R-IV Interest, together with the
Class P Certificates, constitute the entire beneficial ownership interest in
REMIC IV.

                  SECTION 2.07. Issuance of Class R Certificates and Class R-X
                                Certificates.

                  (a) The Trustee acknowledges the assignment to it of the REMIC
I Regular Interests and, concurrently therewith and in exchange therefor,
pursuant to the written request of the

                                      -59-

<PAGE>

Depositor executed by an officer of the Depositor, the Trustee has executed,
authenticated and delivered to or upon the order of the Depositor, the Class R
Certificates in authorized denominations. The interests evidenced by the Class R
Certificates, together with the REMIC II Certificates, constitute the entire
beneficial ownership interest in REMIC II.

                  (b) The Trustee acknowledges the assignment to it of the Class
CE Interest and the Class P Interest and, concurrently therewith and in exchange
therefor, pursuant to the written request of the Depositor executed by an
officer of the Depositor, the Trustee has executed, authenticated and delivered
to or upon the order of the Depositor, the Class R-X Certificates in authorized
denominations. The interests evidenced by the Class R-X Certificates, together
with the Class CE Certificates and the Class P Certificates constitute the
entire beneficial ownership interest in REMIC III and REMIC IV.

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                                   ARTICLE III

                          ADMINISTRATION AND SERVICING
                              OF THE MORTGAGE LOANS

                  SECTION 3.01. Servicer to Act as Servicer.

                  The Servicer shall service and administer the Mortgage Loans
on behalf of the Trust Fund and in the best interests of and for the benefit of
the Certificateholders (as determined by the Servicer in its reasonable
judgment) in accordance with the terms of this Agreement and the Mortgage Loans
and, in the same manner in which it services and administers similar mortgage
loans for its own portfolio, giving due consideration to customary and usual
standards of practice of mortgage lenders and loan servicers administering
similar mortgage loans but without regard to:

                  (A) any relationship that the Servicer, any Sub-Servicer or
         any Affiliate of the Servicer or any Sub-Servicer may have with the
         related Mortgagor;

                  (B) the ownership or non-ownership of any Certificate by the
         Servicer or any Affiliate of the Servicer;

                  (C) the Servicer's obligation to make Advances or Servicing
         Advances; or

                  (D) the Servicer's or any Sub-Servicer's right to receive
         compensation for its services hereunder or with respect to any
         particular transaction (the above is the "Servicing Standard").

                  To the extent consistent with the foregoing, the Servicer (a)
shall seek the timely and complete recovery of principal and interest on the
Mortgage Notes and (b) shall waive (or permit a Sub-Servicer to waive) a
Prepayment Charge only under the following circumstances: (i) such waiver is
standard and customary in servicing similar Mortgage Loans and such waiver
relates to a default or a reasonably foreseeable default and would, in the
reasonable judgment of the Servicer, maximize recovery of total proceeds taking
into account the value of such Prepayment Charge and the related Mortgage Loan,
(ii) the collection of such Prepayment Charge would be in violation of
applicable laws or (iii) would be considered "predatory" under any applicable
federal, state or local regulatory authority. If a Prepayment Charge is waived
as permitted by meeting the standard described in clauses (ii) or (iii) above,
then the Trustee shall enforce the obligation of the Originator to pay the
amount of such waived Prepayment Charge to the Servicer for deposit in the
Collection Account for the benefit of the Holders of the Class P Certificates.
Subject only to the above- described servicing standards and the terms of this
Agreement and of the Mortgage Loans, the Servicer shall have full power and
authority, acting alone or through Sub-Servicers as provided in Section 3.02, to
do or cause to be done any and all things in connection with such servicing and
administration which it may deem necessary or desirable. Without limiting the
generality of the foregoing, the Servicer in the name of the Trust Fund is
hereby authorized and empowered by the Trustee when the Servicer believes it
appropriate in its best judgment in accordance with the servicing standards set
forth above, to execute and deliver, on behalf of the Certificateholders and the
Trustee, and upon notice to the Trustee, any and all instruments of satisfaction
or cancellation,

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<PAGE>

or of partial or full release or discharge, and all other comparable
instruments, with respect to the Mortgage Loans and the Mortgaged Properties and
to institute foreclosure proceedings or obtain a deed-in-lieu of foreclosure so
as to convert the ownership of such properties, and to hold or cause to be held
title to such properties, on behalf of the Trustee and Certificateholders. The
Servicer shall service and administer the Mortgage Loans in accordance with
applicable state and federal law and shall provide to the Mortgagors any reports
required to be provided to them thereby. The Servicer shall also comply in the
performance of this Agreement with all reasonable rules and requirements of each
insurer under any standard hazard insurance policy. Subject to Section 3.17, the
Trustee shall execute and furnish to the Servicer and any Sub-Servicer any
special or limited powers of attorney for each county in which a Mortgaged
Property is located and other documents necessary or appropriate to enable the
Servicer or any Sub-Servicer to carry out their servicing and administrative
duties hereunder; provided, such limited powers of attorney or other documents
shall be prepared by the Servicer and submitted to the Trustee for execution.
The Trustee shall not be liable for the actions of the Servicer or any
Sub-Servicers under such powers of attorney.

                  Subject to Section 3.09 hereof, in accordance with the
standards of the preceding paragraph, the Servicer shall advance or cause to be
advanced funds as necessary for the purpose of effecting the timely payment of
taxes and assessments on the Mortgaged Properties, which advances shall be
Servicing Advances reimbursable in the first instance from related collections
from the Mortgagors pursuant to Section 3.09, and further as provided in Section
3.11. Any cost incurred by the Servicer or by Sub-Servicers in effecting the
timely payment of taxes and assessments on a Mortgaged Property shall not, for
the purpose of calculating distributions to Certificateholders, be added to the
unpaid Principal Balance of the related Mortgage Loan, notwithstanding that the
terms of such Mortgage Loan so permit.

                  The Servicer further is authorized and empowered by the
Trustee, on behalf of the Certificateholders and the Trustee, in its own name or
in the name of the Sub-Servicer, when the Servicer or the Sub-Servicer, as the
case may be, believes it is appropriate in its reasonable judgment to register
any Mortgage Loan on the MERS(R) System, or cause the removal from the
registration of any Mortgage Loan on the MERS(R) System, to execute and deliver,
on behalf of the Trustee and the Certificateholders or any of them, any and all
instruments of assignment and other comparable instruments with respect to such
assignment or re-recording of a Mortgage in the name of MERS, solely as nominee
for the Trustee and its successors and assigns. Any reasonable expenses incurred
in connection with the actions described in the preceding sentence or as a
result of MERS discontinuing or becoming unable to continue operations in
connection with the MERS(R) System, shall be subject to withdrawal by the
Servicer from the Collection Account.

                  Notwithstanding anything in this Agreement to the contrary,
the Servicer may not make any future advances with respect to a Mortgage Loan
(except as provided in Section 4.03) and the Servicer shall not (i) permit any
modification with respect to any Mortgage Loan that would change the Mortgage
Rate, reduce or increase the Principal Balance (except for reductions resulting
from actual payments of principal) or change the final maturity date on such
Mortgage Loan (unless, as provided in Section 3.07, the Mortgagor is in default
with respect to the Mortgage Loan or such default is, in the judgment of the
Servicer, reasonably foreseeable) or (ii) permit any modification, waiver or
amendment of any term of any Mortgage Loan that would both (A) effect an
exchange or reissuance of such Mortgage Loan under Section 1001 of the Code (or
Treasury regulations

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<PAGE>

promulgated thereunder) and (B) cause any REMIC created hereunder to fail to
qualify as a REMIC under the Code or the imposition of any tax on "prohibited
transactions" or "contributions after the startup date" under the REMIC
Provisions.

                  Notwithstanding anything in this Agreement to the contrary and
notwithstanding its ability to do so pursuant to the terms of the related
mortgage note, the Servicer shall not be required to enforce any provision in
any mortgage note the enforcement of which would violate federal or state laws
designed to discourage predatory lending practices.

                  SECTION 3.02. Sub-Servicing Agreements Between Servicer and
                                Sub- Servicers.

                  (a) The Servicer may enter into Sub-Servicing Agreements with
Sub-Servicers, which may be an Affiliate of the Servicer, for the servicing and
administration of the Mortgage Loans; provided, however, that (i) such
sub-servicing arrangement and the terms of the related Sub- Servicing Agreement
must provide for the servicing of the Mortgage Loans in a manner consistent with
the servicing arrangement contemplated hereunder and (ii) the NIMS Insurer shall
have consented to such Sub-Servicing Agreement. The Trustee is hereby authorized
to acknowledge, at the request of the Servicer, any Sub-Servicing Agreement that
meets the requirements applicable to Sub-Servicing Agreements set forth in this
Agreement and that is otherwise permitted under this Agreement.

                  Each Sub-Servicer shall be (i) authorized to transact business
in the state or states where the related Mortgaged Properties it is to service
are situated, if and to the extent required by applicable law to enable the
Sub-Servicer to perform its obligations hereunder and under the Sub- Servicing
Agreement and (ii) a Freddie Mac or Fannie Mae approved mortgage servicer. Each
Sub- Servicing Agreement must impose on the Sub-Servicer requirements conforming
to the provisions set forth in Section 3.08 and provide for servicing of the
Mortgage Loans consistent with the terms of this Agreement. The Servicer will
examine each Sub-Servicing Agreement and will be familiar with the terms
thereof. The terms of any Sub-Servicing Agreement will not be inconsistent with
any of the provisions of this Agreement. Any variation in any Sub-Servicing
Agreements from the provisions set forth in Section 3.08 relating to insurance
or priority requirements of Sub-Servicing Accounts, or credits and charges to
the Sub-Servicing Accounts or the timing and amount of remittances by the
Sub-Servicers to the Servicer, are conclusively deemed to be inconsistent with
this Agreement and therefore prohibited. The Servicer shall deliver to the NIMS
Insurer and the Trustee copies of all Sub-Servicing Agreements, and any
amendments or modifications thereof, promptly upon the Servicer's execution and
delivery of such instruments.

                  (b) As part of its servicing activities hereunder, the
Servicer, for the benefit of the Trustee and the Certificateholders, shall
enforce the obligations of each Sub-Servicer under the related Sub-Servicing
Agreement, including, without limitation, any obligation to make advances in
respect of delinquent payments as required by a Sub-Servicing Agreement, or to
purchase a Mortgage Loan on account of missing or defective documentation or on
account of a breach of a representation, warranty or covenant, as described in
Section 2.03(a). Such enforcement, including, without limitation, the legal
prosecution of claims, termination of Sub-Servicing Agreements, and the pursuit
of other appropriate remedies, shall be in such form and carried out to such an
extent and

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<PAGE>

at such time as the Servicer, in its good faith business judgment, would require
were it the owner of the related Mortgage Loans. The Servicer shall pay the
costs of such enforcement at its own expense, and shall be reimbursed therefor
only (i) from a general recovery resulting from such enforcement, to the extent,
if any, that such recovery exceeds all amounts due in respect of the related
Mortgage Loans, or (ii) from a specific recovery of costs, expenses or
attorneys' fees against the party against whom such enforcement is directed.

                  SECTION 3.03. Successor Sub-Servicers.

                  The Servicer, with the consent of the NIMS Insurer, shall be
entitled to terminate any Sub-Servicing Agreement and the rights and obligations
of any Sub-Servicer pursuant to any Sub- Servicing Agreement in accordance with
the terms and conditions of such Sub-Servicing Agreement. In the event of
termination of any Sub-Servicer, all servicing obligations of such Sub-Servicer
shall be assumed simultaneously by the Servicer without any act or deed on the
part of such Sub-Servicer or the Servicer, and the Servicer either shall service
directly the related Mortgage Loans or shall enter into a Sub-Servicing
Agreement with a successor Sub-Servicer which qualifies under Section 3.02.

                  Any Sub-Servicing Agreement shall include the provision that
such agreement may be immediately terminated by the Trustee (if the Trustee is
acting as Servicer) without fee, in accordance with the terms of this Agreement,
in the event that the Servicer (or the Trustee, if such party is then acting as
Servicer) shall, for any reason, no longer be the Servicer (including
termination due to a Servicer Event of Termination).

                  SECTION 3.04. Liability of the Servicer.

                  Notwithstanding any Sub-Servicing Agreement or the provisions
of this Agreement relating to agreements or arrangements between the Servicer
and a Sub-Servicer or reference to actions taken through a Sub-Servicer or
otherwise, the Servicer shall remain obligated and primarily liable to the
Trustee and the Certificateholders for the servicing and administering of the
Mortgage Loans in accordance with the provisions of Section 3.01 without
diminution of such obligation or liability by virtue of such Sub-Servicing
Agreements or arrangements or by virtue of indemnification from the Sub-Servicer
and to the same extent and under the same terms and conditions as if the
Servicer alone were servicing and administering the Mortgage Loans. The Servicer
shall be entitled to enter into any agreement with a Sub-Servicer for
indemnification of the Servicer by such Sub- Servicer and nothing contained in
this Agreement shall be deemed to limit or modify such indemnification.

                  SECTION 3.05. No Contractual Relationship Between
                                Sub-Servicers and the NIMS Insurer, the Trustee
                                or Certificateholders.

                  Any Sub-Servicing Agreement that may be entered into and any
transactions or services relating to the Mortgage Loans involving a Sub-Servicer
in its capacity as such shall be deemed to be between the Sub-Servicer and the
Servicer alone, and the NIMS Insurer, the Trustee or Certificateholders shall
not be deemed parties thereto and shall have no claims, rights, obligations,
duties or liabilities with respect to the Sub-Servicer except as set forth in
Section 3.06. The Servicer shall be solely liable for all fees owed by it to any
Sub-Servicer, irrespective of whether the

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<PAGE>

Servicer's compensation pursuant to this Agreement is sufficient to pay such
fees.

                  SECTION 3.06. Assumption or Termination of Sub-Servicing
                                Agreements by Trustee.

                  In the event the Servicer shall for any reason no longer be
the servicer (including by reason of the occurrence of a Servicer Event of
Termination), the Trustee, in addition to its duties under Section 7.02 herein,
shall thereupon assume all of the rights and obligations of the Servicer under
each Sub-Servicing Agreement that the Servicer may have entered into, unless the
Trustee elects to terminate any Sub-Servicing Agreement in accordance with its
terms as provided in Section 3.03. Upon such assumption, the Trustee (or the
successor servicer appointed pursuant to Section 7.02) shall be deemed, subject
to Section 3.03, to have assumed all of the departing Servicer's interest
therein and to have replaced the departing Servicer as a party to each
Sub-Servicing Agreement to the same extent as if each Sub-Servicing Agreement
had been assigned to the assuming party, except that (i) the departing Servicer
shall not thereby be relieved of any liability or obligations under any
Sub-Servicing Agreement that arose before it ceased to be the Servicer and (ii)
neither the Trustee nor any successor Servicer shall be deemed to have assumed
any liability or obligation of the Servicer that arose before it ceased to be
the Servicer.

                  The Servicer at its expense shall, upon request of Trustee,
deliver to the assuming party all documents and records relating to each
Sub-Servicing Agreement and the Mortgage Loans then being serviced and an
accounting of amounts collected and held by or on behalf of it, and otherwise
use its best efforts to effect the orderly and efficient transfer of the
Sub-Servicing Agreements to the assuming party. All Servicing Transfer Costs
shall be paid by the predecessor Servicer upon presentation of reasonable
documentation of such costs, and if such predecessor Servicer defaults in its
obligation to pay such costs, such costs shall be paid by the successor Servicer
or the Trustee (in which case the successor Servicer or the Trustee, as
applicable, shall be entitled to reimbursement therefor from the assets of the
Trust Fund).

                  SECTION 3.07. Collection of Certain Mortgage Loan Payments.

                  The Servicer shall make reasonable efforts in accordance with
the Servicing Standard to collect all payments called for under the terms and
provisions of the Mortgage Loans and the terms and provisions of any applicable
insurance policies. Consistent with the foregoing, the Servicer may in its
discretion (i) waive any late payment charge or, if applicable, any penalty
interest, or (ii) extend the due dates for the Monthly Payments due on a
Mortgage Note for a period of not greater than 180 days; provided, however, that
any extension pursuant to clause (ii) above shall not affect the amortization
schedule of any Mortgage Loan for purposes of any computation hereunder, except
as provided below. In the event of any such arrangement pursuant to clause (ii)
above, the Servicer shall make timely advances on such Mortgage Loan during such
extension pursuant to Section 4.03 and in accordance with the amortization
schedule of such Mortgage Loan without modification thereof by reason of such
arrangement. Notwithstanding the foregoing, in the event that any Mortgage Loan
is in default or, in the judgment of the Servicer, such default is reasonably
foreseeable, the Servicer, consistent with the standards set forth in Section
3.01, may also waive, modify or vary any term of such Mortgage Loan (including
modifications that would change the Mortgage Rate, forgive the payment of
principal or interest or extend the final maturity date of such

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<PAGE>

Mortgage Loan), accept payment from the related Mortgagor of an amount less than
the Stated Principal Balance in final satisfaction of such Mortgage Loan, or
consent to the postponement of strict compliance with any such term or otherwise
grant indulgence to any Mortgagor (any and all such waivers, modifications,
variances, forgiveness of principal or interest, postponements, or indulgences
collectively referred to herein as "forbearance"), provided, however, that in no
event shall the Servicer grant any such forbearance (other than as permitted by
the second sentence of this Section) with respect to any one Mortgage Loan more
than once in any 12 month period or more than three times over the life of such
Mortgage Loan. The Servicer's analysis supporting any forbearance and the
conclusion that any forbearance meets the standards of Section 3.01 shall be
reflected in writing in the Mortgage File.

                  SECTION 3.08. Sub-Servicing Accounts.

                  In those cases where a Sub-Servicer is servicing a Mortgage
Loan pursuant to a Sub- Servicing Agreement, the Sub-Servicer will be required
to establish and maintain one or more accounts (collectively, the "Sub-Servicing
Account"). The Sub-Servicing Account shall be an Eligible Account and shall
comply with all requirements of this Agreement relating to the Collection
Account. The Sub-Servicer shall deposit in the clearing account in which it
customarily deposits payments and collections on mortgage loans in connection
with its mortgage loan servicing activities on a daily basis, and in no event
more than one Business Day after the Sub-Servicer's receipt thereof, all
proceeds of Mortgage Loans received by the Sub-Servicer less its servicing
compensation to the extent permitted by the Sub-Servicing Agreement, and shall
thereafter deposit such amounts in the Sub-Servicing Account, in no event more
than two Business Days after the receipt of such amounts. The Sub-Servicer shall
thereafter deposit such proceeds in the Collection Account or remit such
proceeds to the Servicer for deposit in the Collection Account not later than
two Business Days after the deposit of such amounts in the Sub-Servicing
Account. For purposes of this Agreement, the Servicer shall be deemed to have
received payments on the Mortgage Loans when the Sub-Servicer receives such
payments.

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

                  To the extent required by the related Mortgage Note, the
Servicer shall establish and maintain, or cause to be established and
maintained, one or more accounts (the "Escrow Accounts"), into which all Escrow
Payments shall be deposited and retained. Escrow Accounts shall be Eligible
Accounts. The Servicer shall deposit in the clearing account in which it
customarily deposits payments and collections on mortgage loans in connection
with its mortgage loan servicing activities, all Escrow Payments collected on
account of the Mortgage Loans and shall deposit such Escrow Payments in the
Escrow Accounts, in no event more than two Business Days after the receipt of
such Escrow Payments, all Escrow Payments collected on account of the Mortgage
Loans for the purpose of effecting the timely payment of any such items as
required under the terms of this Agreement. Withdrawals of amounts from a Escrow
Account may be made only to (i) effect payment of taxes, assessments, hazard
insurance premiums, and comparable items in a manner and at a time that assures
that the lien priority of the Mortgage is not jeopardized (or, with respect to
the payment of taxes, in a manner and at a time that avoids the loss of the
Mortgaged Property due to a tax sale or the foreclosure as a result of a tax
lien); (ii) reimburse the Servicer (or a Sub-Servicer

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<PAGE>

to the extent provided in the related Sub-Servicing Agreement) out of related
collections for any Servicing Advances made pursuant to Section 3.01 (with
respect to taxes and assessments) and Section 3.14 (with respect to hazard
insurance); (iii) refund to Mortgagors any sums as may be determined to be
overages; (iv) pay interest, if required and as described below, to Mortgagors
on balances in the Escrow Account; or (v) clear and terminate the Escrow Account
at the termination of the Servicer's obligations and responsibilities in respect
of the Mortgage Loans under this Agreement in accordance with Article IX. In the
event the Servicer shall deposit in a Escrow Account any amount not required to
be deposited therein, it may at any time withdraw such amount from such Escrow
Account, any provision herein to the contrary notwithstanding. The Servicer will
be responsible for the administration of the Escrow Accounts and will be
obligated to make Servicing Advances to such accounts when and as necessary to
avoid the lapse of insurance coverage on the Mortgaged Property, or which the
Servicer knows, or in the exercise of the required standard of care of the
Servicer hereunder should know, is necessary to avoid the loss of the Mortgaged
Property due to a tax sale or the foreclosure as a result of a tax lien. As part
of its servicing duties, the Servicer or Sub-Servicers shall pay to the
Mortgagors interest on funds in the Escrow Accounts, to the extent required by
law and, to the extent that interest earned on funds in the Escrow Accounts is
insufficient, to pay such interest from its or their own funds, without any
reimbursement therefor. The Servicer may pay to itself any excess interest on
funds in the Escrow Accounts, to the extent such action is in conformity with
the Servicing Standard, is permitted by law and such amounts are not required to
be paid to Mortgagors or used for any of the other purposes set forth above.

                  SECTION 3.10. Collection Account and Distribution Account.

                  (a) On behalf of the Trust Fund, the Servicer shall establish
         and maintain, or cause to be established and maintained, one or more
         accounts (such account or accounts, the "Collection Account"), held in
         trust for the benefit of the Trustee and the Certificateholders. On
         behalf of the Trust Fund, the Servicer shall deposit or cause to be
         deposited in the Collection Account, in no event more than two Business
         Days after the Servicer's receipt thereof, as and when received or as
         otherwise required hereunder, the following payments and collections
         received or made by it subsequent to the Cut-off Date (other than in
         respect of principal or interest on the Mortgage Loans due on or before
         the Cut-off Date) or payments (other than Principal Prepayments)
         received by it on or prior to the Cut-off Date, but allocable to a Due
         Period subsequent thereto:

                  (i) all payments on account of principal, including Principal
         Prepayments (but not Prepayment Charges), on the Mortgage Loans;

                  (ii) all payments on account of interest (net of the related
         Servicing Fee) on each Mortgage Loan;

                  (iii) all Insurance Proceeds, Liquidation Proceeds and
         condemnation proceeds (other than proceeds collected in respect of any
         particular REO Property and amounts paid in connection with a purchase
         of Mortgage Loans and REO Properties pursuant to Section 9.01);

                  (iv) any amounts required to be deposited pursuant to Section
         3.12 in connection

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         with any losses realized on Permitted Investments with respect to funds
         held in the Collection Account;

                  (v) any amounts required to be deposited by the Servicer
         pursuant to the second paragraph of Section 3.14(a) in respect of any
         blanket policy deductibles;

                  (vi) all proceeds of any Mortgage Loan repurchased or
         purchased in accordance with Section 2.03 or Section 9.01;

                  (vii) all amounts required to be deposited in connection with
         Substitution Adjustments pursuant to Section 2.03;

                  (viii) all Prepayment Charges collected by the Servicer and
         any Servicer Prepayment Charge Payment Amounts in connection with the
         Principal Prepayment of any of the Mortgage Loans; and

                  (ix) [reserved].

                  The foregoing requirements for deposit in the Collection
Account shall be exclusive, it being understood and agreed that, without
limiting the generality of the foregoing, payments in the nature of Servicing
Fees, late payment charges, assumption fees, insufficient funds charges and
ancillary income (other than Prepayment Charges) need not be deposited by the
Servicer in the Collection Account and may be retained by the Servicer as
additional compensation. In the event the Servicer shall deposit in the
Collection Account any amount not required to be deposited therein, it may at
any time withdraw such amount from the Collection Account, any provision herein
to the contrary notwithstanding.

                  (b) On behalf of the Trust Fund, the Trustee shall establish
and maintain one or more accounts (such account or accounts, the "Distribution
Account"), held in trust for the benefit of the Trustee and the
Certificateholders. On behalf of the Trust Fund, the Servicer shall deliver to
the Trustee in immediately available funds for deposit in the Distribution
Account on or before 1:00 p.m. New York time (i) on the Servicer Remittance
Date, that portion of the Available Funds (calculated without regard to the
references in the definition thereof to amounts that may be withdrawn from the
Distribution Account) for the related Distribution Date then on deposit in the
Collection Account, the amount of all Prepayment Charges collected during the
applicable Prepayment Period by the Servicer and Servicer Prepayment Charge
Payment Amounts in connection with the Principal Prepayment of any of the
Mortgage Loans then on deposit in the Collection Account and the amount of any
funds reimbursable to an Advancing Person pursuant to Section 3.29.

                  (c) Funds in the Collection Account and the Distribution
Account may be invested in Permitted Investments in accordance with the
provisions set forth in Section 3.12. The Servicer shall give notice to the NIMS
Insurer and the Trustee of the location of the Collection Account maintained by
it when established and prior to any change thereof. The Trustee shall give
notice to the NIMS Insurer, the Servicer and the Depositor of the location of
the Distribution Account when established and prior to any change thereof.

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                  (d) Funds held in the Collection Account at any time may be
                  delivered by the Servicer to the Trustee for deposit in an
                  account (which may be the Distribution Account and must
                  satisfy the standards for the Distribution Account as set
                  forth in the definition thereof) and for all purposes of this
                  Agreement shall be deemed to be a part of the Collection
                  Account; provided, however, that the Trustee shall have the
                  sole authority to withdraw any funds held pursuant to this
                  subsection (d). In the event the Servicer shall deliver to the
                  Trustee for deposit in the Distribution Account any amount not
                  required to be deposited therein, it may at any time request
                  that the Trustee withdraw such amount from the Distribution
                  Account and remit to it any such amount, any provision herein
                  to the contrary notwithstanding. In addition, the Servicer,
                  with respect to items (i) through (iv) below, shall deliver to
                  the Trustee from time to time for deposit, and the Trustee,
                  with respect to items (i) through (iv) below, shall so
                  deposit, in the Distribution Account:

                  (i) any Advances, as required pursuant to Section 4.03;

                  (ii) any amounts required to be deposited pursuant to Section
                  3.23(d) or (f) in connection with any REO Property;

                  (iii) any amounts to be paid in connection with a purchase of
                  Mortgage Loans and REO Properties pursuant to Section 9.01;

                  (iv) any Compensating Interest to be deposited pursuant to
                  Section 3.24 in connection with any Prepayment Interest
                  Shortfall; and

                  (v) any amounts required to be paid to the Trustee pursuant to
                  the Agreement, including, but not limited to Section 3.06 and
                  Section 7.02.

                  (e) The Servicer shall deposit in the Collection Account any
                  amounts required to be deposited pursuant to Section 3.12(b)
                  in connection with losses realized on Permitted Investments
                  with respect to funds held in the Collection Account.

                  SECTION 3.11. Withdrawals from the Collection Account and
                                Distribution Account.

                  (a) The Servicer shall, from time to time, make withdrawals
from the Collection Account for any of the following purposes or as described in
Section 4.03:

                  (i) to remit to the Trustee for deposit in the Distribution
         Account the amounts required to be so remitted pursuant to Section
         3.10(b) or permitted to be so remitted pursuant to the first sentence
         of Section 3.10(d);

                  (ii) subject to Section 3.16(d), to reimburse the Servicer for
         (a) any unreimbursed Advances to the extent of amounts received which
         represent Late Collections (net of the related Servicing Fees) of
         Monthly Payments, Liquidation Proceeds and Insurance Proceeds on
         Mortgage Loans with respect to which such Advances were made in
         accordance with the provisions of Section 4.03; or (b) any unreimbursed
         Advances with respect to the final liquidation of a Mortgage Loan that
         are Nonrecoverable Advances, but only to the extent that

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         Late Collections, Liquidation Proceeds and Insurance Proceeds received
         with respect to such Mortgage Loan are insufficient to reimburse the
         Servicer for such unreimbursed Advances;

                  (iii) subject to Section 3.16(d), to pay the Servicer or any
         Sub-Servicer (a) any unpaid Servicing Fees, (b) any unreimbursed
         Servicing Advances with respect to each Mortgage Loan, but only to the
         extent of any Late Collections, Liquidation Proceeds, Insurance
         Proceeds and condemnation proceeds received with respect to such
         Mortgage Loan, and (c) any Servicing Advances with respect to the final
         liquidation of a Mortgage Loan that are Nonrecoverable Advances, but
         only to the extent that Late Collections, Liquidation Proceeds and
         Insurance Proceeds received with respect to such Mortgage Loan are
         insufficient to reimburse the Servicer or any Sub-Servicer for
         Servicing Advances;

                  (iv) to pay to the Servicer as additional servicing
         compensation (in addition to the Servicing Fee) on the Servicer
         Remittance Date any interest or investment income earned on funds
         deposited in the Collection Account;

                  (v) to pay to the Originator, with respect to each Mortgage
         Loan that has previously been purchased or replaced pursuant to Section
         2.03 or Section 3.16(c) all amounts received thereon subsequent to the
         date of purchase or substitution, as the case may be;

                  (vi) to reimburse the Servicer for any Advance or Servicing
         Advance previously made which the Servicer has determined to be a
         Nonrecoverable Advance in accordance with the provisions of Section
         4.03;

                  (vii) to pay, or to reimburse the Servicer for Servicing
         Advances in respect of, expenses incurred in connection with any
         Mortgage Loan pursuant to Section 3.16(b);

                  (viii) to reimburse the Servicer for expenses incurred by or
         reimbursable to the Servicer pursuant to Section 6.03(b);

                  (ix) to reimburse the NIMS Insurer, the Servicer (if the
         Servicer is not an Affiliate of the Originator) or the Trustee, as the
         case may be, for enforcement expenses reasonably incurred in respect of
         the breach or defect giving rise to the purchase obligation under
         Section 2.03 of this Agreement that were included in the Purchase Price
         of the Mortgage Loan, including any expenses arising out of the
         enforcement of the purchase obligation;

                  (x) to pay itself any Prepayment Interest Excess; and

                  (xi) to clear and terminate the Collection Account pursuant to
         Section 9.01.

                  The foregoing requirements for withdrawal from the Collection
Account shall be exclusive. In the event the Servicer shall deposit in the
Collection Account any amount not required to be deposited therein, it may at
any time withdraw such amount from the Collection Account, any provision herein
to the contrary notwithstanding.

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<PAGE>

                  The Servicer shall keep and maintain separate accounting, on a
Mortgage Loan by Mortgage Loan basis, for the purpose of justifying any
withdrawal from the Collection Account, to the extent held by or on behalf of
it, pursuant to subclauses (ii), (iii), (iv), (v), (vi), (vii) and (viii) above.
The Servicer shall provide written notification to the NIMS Insurer and the
Trustee, on or prior to the next succeeding Servicer Remittance Date, upon
making any withdrawals from the Collection Account pursuant to subclause (vi)
above; provided that an Officers' Certificate in the form described under
Section 4.03(d) shall suffice for such written notification to the Trustee in
respect hereof.

                  (b) The Trustee shall, from time to time, make withdrawals
         from the Distribution Account, for any of the following purposes,
         without priority:

                  (i) to make distributions in accordance with Section 4.01;

                  (ii) to pay itself the Trustee Fee and any Extraordinary Trust
         Fund Expenses pursuant to Section 8.05;

                  (iii) to pay any amounts in respect of taxes pursuant to
         Section 10.01(g);

                  (iv) to clear and terminate the Distribution Account pursuant
         to Section 9.01;

                  (v) to pay any amounts required to be paid to the Trustee
         pursuant to this Agreement, including but not limited to funds required
         to be paid pursuant to Section 3.06 and Section 7.02;

                  (vi) to pay to the Trustee, any interest or investment income
         earned on funds deposited in the Distribution Account;

                  (vii) to pay to an Advancing Person reimbursements for
         Advances and/or Servicing Advances pursuant to Section 3.29; and

                  (viii) [reserved].

                  The foregoing requirements for withdrawal from the
Distribution Account shall be exclusive. In the event the Trustee shall deposit
in the Distribution Account any amount not required to be deposited therein, it
may at any time withdraw such amount from the Distribution Account, any
provision herein to the contrary notwithstanding.

                  SECTION 3.12. Investment of Funds in the Collection Account
                                and the Distribution Account.

                  (a) The Servicer may direct any depository institution
maintaining the Collection Account and any REO Account to invest the funds on
deposit in such accounts, and the Trustee may invest the funds on deposit in the
Distribution Account (each such account, for the purposes of this Section 3.12
an "Investment Account"). All investments pursuant to this Section 3.12 shall be
in one or more Permitted Investments bearing interest or sold at a discount, and
maturing, unless

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<PAGE>

payable on demand, (i) no later than the Business Day immediately preceding the
date on which such funds are required to be withdrawn from such account pursuant
to this Agreement, if a Person other than the Trustee is the obligor thereon or
if such investment is managed or advised by a Person other than the Trustee or
an Affiliate of the Trustee, and (ii) no later than the date on which such funds
are required to be withdrawn from such account pursuant to this Agreement, if
the Trustee is the obligor thereon or if such investment is managed or advised
by the Trustee or any Affiliate. All such Permitted Investments shall be held to
maturity, unless payable on demand. Any investment of funds in an Investment
Account shall be made in the name of the Trustee (in its capacity as such), or
in the name of a nominee of the Trustee. The Trustee shall be entitled to sole
possession (except with respect to investment direction of funds held in the
Collection Account or any REO Account and any income and gain realized thereon)
over each such investment, and any certificate or other instrument evidencing
any such investment shall be delivered directly to the Trustee or its agent,
together with any document of transfer necessary to transfer title to such
investment to the Trustee or its nominee. In the event amounts on deposit in an
Investment Account are at any time invested in a Permitted Investment payable on
demand, the Trustee shall:

                  (x) consistent with any notice required to be given
         thereunder, demand that payment thereon be made on the last day such
         Permitted Investment may otherwise mature hereunder in an amount equal
         to the lesser of (1) all amounts then payable thereunder and (2) the
         amount required to be withdrawn on such date; and

                  (y) demand payment of all amounts due thereunder promptly upon
         determination by a Responsible Officer of the Trustee that such
         Permitted Investment would not constitute a Permitted Investment in
         respect of funds thereafter on deposit in the Investment Account.

                  (b) All income and gain realized from the investment of funds
         deposited in the Collection Account and any REO Account held by or on
         behalf of the Servicer shall be for the benefit of the Servicer and
         shall be subject to its withdrawal in accordance with Section 3.11 or
         Section 3.23, as applicable. The Servicer shall deposit in the
         Collection Account or any REO Account, as applicable, the amount of any
         loss of principal incurred in respect of any such Permitted Investment
         made with funds in such account immediately upon realization of such
         loss.

                  (c) All income and gain realized from the investment of funds
         deposited in the Distribution Account shall be for the benefit of the
         Trustee. The Trustee shall deposit in the Distribution Account the
         amount of any loss of principal incurred in respect of any such
         Permitted Investment made with funds in such accounts immediately upon
         realization of such loss.

                  (d) Except as otherwise expressly provided in this Agreement,
         if any default occurs in the making of a payment due under any
         Permitted Investment, or if a default occurs in any other performance
         required under any Permitted Investment, the Trustee may and, subject
         to Section 8.01 and Section 8.02(a)(v), upon the request of the NIMS
         Insurer or the Holders of Certificates representing more than 50% of
         the Voting Rights allocated to any Class of Certificates, shall take
         such action as may be appropriate to enforce such payment or
         performance, including the institution and prosecution of appropriate
         proceedings.

                  SECTION 3.13. [Reserved].

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<PAGE>

                  SECTION 3.14. Maintenance of Hazard Insurance and Errors and
                                Omissions and Fidelity Coverage.

                  (a) The Servicer shall cause to be maintained for each
Mortgage Loan hazard insurance with extended coverage on the Mortgaged Property
in an amount which is at least equal to the lesser of (i) the current Principal
Balance of such Mortgage Loan and (ii) the amount necessary to fully compensate
for any damage or loss to the improvements that are a part of such property on a
replacement cost basis, in each case in an amount not less than such amount as
is necessary to avoid the application of any coinsurance clause contained in the
related hazard insurance policy. The Servicer shall also cause to be maintained
hazard insurance with extended coverage on each REO Property in an amount which
is at least equal to the lesser of (i) the maximum insurable value of the
improvements which are a part of such property and (ii) the outstanding
Principal Balance of the related Mortgage Loan at the time it became an REO
Property. The Servicer will comply in the performance of this Agreement with all
reasonable rules and requirements of each insurer under any such hazard
policies. Any amounts to be collected by the Servicer under any such policies
(other than amounts to be applied to the restoration or repair of the property
subject to the related Mortgage or amounts to be released to the Mortgagor in
accordance with the procedures that the Servicer would follow in servicing loans
held for its own account, subject to the terms and conditions of the related
Mortgage and Mortgage Note) shall be deposited in the Collection Account,
subject to withdrawal pursuant to Section 3.11, if received in respect of a
Mortgage Loan, or in the REO Account, subject to withdrawal pursuant to Section
3.23, if received in respect of an REO Property. Any cost incurred by the
Servicer in maintaining any such insurance shall not, for the purpose of
calculating distributions to Certificateholders, be added to the unpaid
Principal Balance of the related Mortgage Loan, notwithstanding that the terms
of such Mortgage Loan so permit. Such costs shall be recoverable by the Servicer
out of late payments by the related mortgagor or out of Liquidation Proceeds,
but only to the extent that all amounts owed to the Holders, the Trustee and the
Trust Fund have been remitted by the Servicer. It is understood and agreed that
no earthquake or other additional insurance is to be required of any Mortgagor
other than pursuant to such applicable laws and regulations as shall at any time
be in force and as shall require such additional insurance. If the Mortgaged
Property or REO Property is at any time in an area identified in the Federal
Register by the Federal Emergency Management Agency as having special flood
hazards and flood insurance has been made available, the Servicer will cause to
be maintained a flood insurance policy in respect thereof. Such flood insurance
shall be in an amount equal to the lesser of (i) the unpaid Principal Balance of
the related Mortgage Loan and (ii) the maximum amount of such insurance
available for the related Mortgaged Property under the national flood insurance
program (assuming that the area in which such Mortgaged Property is located is
participating in such program).

                  In the event that the Servicer shall obtain and maintain a
blanket policy insuring against hazard losses on all of the Mortgage Loans, it
shall conclusively be deemed to have satisfied its obligations as set forth in
the first two sentences of this Section 3.14, it being understood and agreed
that such policy may contain a deductible clause on terms substantially
equivalent to those commercially available and maintained by competent
servicers, in which case the Servicer shall, in the event that there shall not
have been maintained on the related Mortgaged Property or REO Property a policy
complying with the first two sentences of this Section 3.14, and there shall
have been one or more losses which would have been covered by such policy,
deposit to the Collection Account from its own funds the amount not otherwise
payable under the blanket policy because of

                                      -73-

<PAGE>

such deductible clause. In connection with its activities as servicer of the
Mortgage Loans, the Servicer agrees to prepare and present, on behalf of itself,
the Depositor, the Trustee and Certificateholders, claims under any such blanket
policy in a timely fashion in accordance with the terms of such policy.

                  (b) The Servicer shall keep in force during the term of this
Agreement a policy or policies of insurance covering errors and omissions for
failure in the performance of the Servicer's obligations under this Agreement,
which policy or policies shall be in such form and amount that would meet the
requirements of Fannie Mae or Freddie Mac if it were the purchaser of the
Mortgage Loans, unless the Servicer has obtained a waiver of such requirements
from Fannie Mae or Freddie Mac. The Servicer shall provide the Trustee and the
NIMS Insurer, upon request, with copies of such insurance policies and fidelity
bond. The Servicer shall also maintain a fidelity bond in the form and amount
that would meet the requirements of Fannie Mae or Freddie Mac, unless the
Servicer has obtained a waiver of such requirements from Fannie Mae or Freddie
Mac. The Servicer shall be deemed to have complied with this provision if an
Affiliate of the Servicer has such errors and omissions and fidelity bond
coverage and, by the terms of such insurance policy or fidelity bond, the
coverage afforded thereunder extends to the Servicer. Any such errors and
omissions policy and fidelity bond shall by its terms not be cancelable without
thirty days' prior written notice to the Trustee and the NIMS Insurer. The
Servicer shall also cause each Sub-Servicer to maintain a policy of insurance
covering errors and omissions and a fidelity bond which would meet such
requirements.

                  SECTION 3.15. Enforcement of Due-On-Sale Clauses; Assumption
                                Agreements.

                  The Servicer will, to the extent it has knowledge of any
conveyance or prospective conveyance of any Mortgaged Property by any Mortgagor
(whether by absolute conveyance or by contract of sale, and whether or not the
Mortgagor remains or is to remain liable under the Mortgage Note and/or the
Mortgage), exercise its rights to accelerate the maturity of such Mortgage Loan
under the "due-on-sale" clause, if any, applicable thereto; provided, however,
that the Servicer shall not be required to take such action if in its sole
business judgment the Servicer believes it is not in the best interests of the
Trust Fund and shall not exercise any such rights if prohibited by law from
doing so. If the Servicer reasonably believes it is unable under applicable law
to enforce such "due- on-sale" clause, or if any of the other conditions set
forth in the proviso to the preceding sentence apply, the Servicer will enter
into an assumption and modification agreement from or with the person to whom
such property has been conveyed or is proposed to be conveyed, pursuant to which
such person becomes liable under the Mortgage Note and, to the extent permitted
by applicable state law, the Mortgagor remains liable thereon. The Servicer is
also authorized to enter into a substitution of liability agreement with such
person, pursuant to which the original Mortgagor is released from liability and
such person is substituted as the Mortgagor and becomes liable under the
Mortgage Note, provided that no such substitution shall be effective unless such
person satisfies the then current underwriting criteria of the Servicer for
mortgage loans similar to the Mortgage Loans. In connection with any assumption
or substitution, the Servicer shall apply such underwriting standards and follow
such practices and procedures as shall be normal and usual in its general
mortgage servicing activities and as it applies to other mortgage loans owned
solely by it. The Servicer shall not take or enter into any assumption and
modification agreement, however, unless (to the extent practicable in the
circumstances) it shall have received confirmation, in writing, of the continued

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<PAGE>

effectiveness of any applicable hazard insurance policy. Any fee collected by
the Servicer in respect of an assumption, modification or substitution of
liability agreement shall be retained by the Servicer as additional servicing
compensation. In connection with any such assumption, no material term of the
Mortgage Note (including but not limited to the related Mortgage Rate and the
amount of the Monthly Payment) may be amended or modified, except as otherwise
required pursuant to the terms thereof. The Servicer shall notify the Trustee
and the Custodian that any such substitution, modification or assumption
agreement has been completed by forwarding to the Custodian the executed
original of such substitution, modification or assumption agreement, which
document shall be added to the related Mortgage File and shall, for all
purposes, be considered a part of such Mortgage File to the same extent as all
other documents and instruments constituting a part thereof.

                  Notwithstanding the foregoing paragraph or any other provision
of this Agreement, the Servicer shall not be deemed to be in default, breach or
any other violation of its obligations hereunder by reason of any assumption of
a Mortgage Loan by operation of law or by the terms of the Mortgage Note or any
assumption which the Servicer may be restricted by law from preventing, for any
reason whatever. For purposes of this Section 3.15, the term "assumption" is
deemed to also include a sale (of the Mortgaged Property) subject to the
Mortgage that is not accompanied by an assumption or substitution of liability
agreement.

                  SECTION 3.16. Realization Upon Defaulted Mortgage Loans.

                  (a) The Servicer shall use its reasonable efforts, consistent
with the Servicing Standard, to foreclose upon or otherwise comparably convert
the ownership of properties securing such of the Mortgage Loans as come into and
continue in default and as to which no satisfactory arrangements can be made for
collection of delinquent payments pursuant to Section 3.07. The Servicer shall
be responsible for all costs and expenses incurred by it in any such
proceedings; provided, however, that such costs and expenses will be recoverable
as Servicing Advances by the Servicer as contemplated in Section 3.11 and
Section 3.23. The foregoing is subject to the provision that, in any case in
which a Mortgaged Property shall have suffered damage from an Uninsured Cause,
the Servicer shall not be required to expend its own funds toward the
restoration of such property unless it shall determine in its discretion that
such restoration will increase the proceeds of liquidation of the related
Mortgage Loan after reimbursement to itself for such expenses.

                  (b) Notwithstanding the foregoing provisions of this Section
3.16 or any other provision of this Agreement, with respect to any Mortgage Loan
as to which the Servicer has received actual notice of, or has actual knowledge
of, the presence of any toxic or hazardous substance on the related Mortgaged
Property, the Servicer shall not, on behalf of the Trustee, either (i) obtain
title to such Mortgaged Property as a result of or in lieu of foreclosure or
otherwise, or (ii) otherwise acquire possession of, or take any other action
with respect to, such Mortgaged Property, if, as a result of any such action,
the Trustee, the Trust Fund or the Certificateholders would be considered to
hold title to, to be a "mortgagee-in-possession" of, or to be an "owner" or
"operator" of such Mortgaged Property within the meaning of the Comprehensive
Environmental Response, Compensation and Liability Act of 1980, as amended from
time to time, or any comparable law, unless the Servicer has also previously
determined, based on its reasonable judgment and a report prepared by a Person
who regularly conducts environmental audits using customary industry standards,
that:

                                      -75-

<PAGE>

                  (1) such Mortgaged Property is in compliance with applicable
         environmental laws or, if not, that it would be in the best economic
         interest of the Trust Fund to take such actions as are necessary to
         bring the Mortgaged Property into compliance therewith; and

                  (2) there are no circumstances present at such Mortgaged
         Property relating to the use, management or disposal of any hazardous
         substances, hazardous materials, hazardous wastes, or petroleum-based
         materials for which investigation, testing, monitoring, containment,
         clean-up or remediation could be required under any federal, state or
         local law or regulation, or that if any such materials are present for
         which such action could be required, that it would be in the best
         economic interest of the Trust Fund to take such actions with respect
         to the affected Mortgaged Property.

                  Notwithstanding the foregoing, if such environmental audit
reveals, or if the Servicer has actual knowledge or notice, that such Mortgaged
Property contains such wastes or substances, the Servicer shall not foreclose or
accept a deed in lieu of foreclosure without the prior written consent of the
NIMS Insurer.

                  The cost of the environmental audit report contemplated by
this Section 3.16 shall be advanced by the Servicer, subject to the Servicer's
right to be reimbursed therefor from the Collection Account as provided in
Section 3.11(a)(vii), such right of reimbursement being prior to the rights of
Certificateholders to receive any amount in the Collection Account received in
respect of the affected Mortgage Loan or other Mortgage Loans.

                  If the Servicer determines, as described above, that it is in
the best economic interest of the Trust Fund to take such actions as are
necessary to bring any such Mortgaged Property into compliance with applicable
environmental laws, or to take such action with respect to the containment,
clean-up or remediation of hazardous substances, hazardous materials, hazardous
wastes or petroleum-based materials affecting any such Mortgaged Property, then
the Servicer shall take such action as it deems to be in the best economic
interest of the Trust Fund; provided that any amounts disbursed by the Servicer
pursuant to this Section 3.16(b) shall constitute Servicing Advances, subject to
Section 4.03(d). The cost of any such compliance, containment, cleanup or
remediation shall be advanced by the Servicer, subject to the Servicer's right
to be reimbursed therefor from the Collection Account as provided in Section
3.11(a)(iii) and (a)(vii), such right of reimbursement being prior to the rights
of Certificateholders to receive any amount in the Collection Account received
in respect of the affected Mortgage Loan or other Mortgage Loans.

                  (c) The Servicer or the NIMS Insurer may, at the option of
each, purchase a Mortgage Loan which has become 90 or more days delinquent or
for which the Servicer has accepted a deed in lieu of foreclosure. Prior to
purchase pursuant to this Section 3.16(c)(i), the Servicer shall be required to
continue to make Advances pursuant to Section 4.03. The Servicer or the NIMS
Insurer shall not use any procedure in selecting Mortgage Loans to be
repurchased which is materially adverse to the interests of the
Certificateholders. The Servicer or the NIMS Insurer shall purchase such
delinquent Mortgage Loan at a price equal to the Purchase Price of such Mortgage
Loan. Any such purchase of a Mortgage Loan pursuant to this Section 3.16(c)(i)
shall be accomplished, by remittance to the Servicer for deposit in the
Collection Account of the amount of the Purchase Price. Notwithstanding the
foregoing, the Servicer shall purchase Mortgage Loans that

                                      -76-

<PAGE>

are delinquent the greatest number of days before it may purchase any that are
delinquent any fewer number of days. The Trustee shall immediately effectuate
the conveyance of such delinquent Mortgage Loan to the Servicer or the NIMS
Insurer, as applicable, to the extent necessary to vest in the Servicer or the
NIMS Insurer, as applicable, title to such Mortgage Loan, including the prompt
delivery of all documentation to the Servicer or the NIMS Insurer, as
applicable.

                  (d) Proceeds received in connection with any Final Recovery
Determination, as well as any recovery resulting from a partial collection of
Insurance Proceeds, Liquidation Proceeds or condemnation proceeds, in respect of
any Mortgage Loan, will be applied in the following order of priority: first, to
unpaid Servicing Fees; second, to reimburse the Servicer or any Sub-Servicer for
any related unreimbursed Servicing Advances pursuant to Section 3.11(a)(iii) and
Advances pursuant to Section 3.11(a)(ii); third, to accrued and unpaid interest
on the Mortgage Loan, to the date of the Final Recovery Determination, or to the
Due Date prior to the Distribution Date on which such amounts are to be
distributed if not in connection with a Final Recovery Determination; and
fourth, as a recovery of principal of the Mortgage Loan. The portion of the
recovery so allocated to unpaid Servicing Fees shall be reimbursed to the
Servicer or any Sub-Servicer pursuant to Section 3.11(a)(iii).

                  SECTION 3.17. Trustee to Cooperate; Release of Mortgage Files.

                  (a) Upon the payment in full of any Mortgage Loan, or the
receipt by the Servicer of a notification that payment in full shall be escrowed
in a manner customary for such purposes, the Servicer will immediately notify or
cause to be notified the Custodian by a certification and shall deliver to the
Custodian, in written or electronic format, a Request for Release in the form of
Exhibit E (which certification shall include a statement to the effect that all
amounts received or to be received in connection with such payment which are
required to be deposited in the Collection Account pursuant to Section 3.10 have
been or will be so deposited) signed by a Servicing Officer (or in a mutually
agreeable electronic format that will, in lieu of a signature on its face,
originate from a Servicing Officer) and shall request delivery to it of the
Mortgage File. Upon receipt of such certification and request and pursuant to
the terms of the Custodial Agreement, the Custodian shall, within three Business
Days, release and send by overnight mail, at the expense of the Servicer, or, at
the expense of the related mortgagor, the related Mortgage File to the Servicer
and the Servicer is authorized to cause the removal from the registration on the
MERS(R) System of any such Mortgage, if applicable, and to execute and deliver,
on behalf of the Trustee and the Certificateholders or any of them, any and all
instruments of satisfaction or cancellation or of partial or full release. The
Trustee agrees to indemnify the Servicer, out of its own funds, for any loss,
liability or expense (other than special, indirect, punitive or consequential
damages which will not be paid by the Trustee) incurred by the Servicer as a
proximate result of the Trustee's breach of its obligations pursuant to this
Section 3.17. No expenses incurred in connection with any instrument of
satisfaction or deed of reconveyance shall be chargeable to the Collection
Account or the Distribution Account.

                  (b) From time to time and as appropriate for the servicing or
foreclosure of any Mortgage Loan, including, for this purpose, collection under
any insurance policy relating to the Mortgage Loans, the Custodian, pursuant to
the terms of the Custodial Agreement, shall, upon any request made by or on
behalf of the Servicer and delivery to the Custodian, in written (with two

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<PAGE>

executed copies) or electronic format, of a Request for Release in the form of
Exhibit E signed by a Servicing Officer (or in a mutually agreeable electronic
format that will, in lieu of a signature on its face, originate from a Servicing
Officer), release the related Mortgage File to the Servicer within three
Business Days, and the Custodian shall, at the direction of the Servicer,
execute such documents as shall be necessary to the prosecution of any such
proceedings. Such Request for Release shall obligate the Servicer to return each
and every document previously requested from the Mortgage File to the Custodian
when the need therefor by the Servicer no longer exists, unless the Mortgage
Loan has been liquidated and the Liquidation Proceeds relating to the Mortgage
Loan have been deposited in the Collection Account or the Mortgage File or such
document has been delivered to an attorney, or to a public trustee or other
public official as required by law, for purposes of initiating or pursuing legal
action or other proceedings for the foreclosure of the Mortgaged Property either
judicially or non-judicially, and the Servicer has delivered, or caused to be
delivered, to the Custodian an additional Request for Release certifying as to
such liquidation or action or proceedings. Upon the request of the Trustee, the
Servicer shall provide notice to the Trustee of the name and address of the
Person to which such Mortgage File or such document was delivered and the
purpose or purposes of such delivery. Upon receipt of a Request for Release, in
written (with two executed copies) or electronic format, from a Servicing
Officer stating that such Mortgage Loan was liquidated and that all amounts
received or to be received in connection with such liquidation that are required
to be deposited into the Collection Account have been so deposited, or that such
Mortgage Loan has become an REO Property, such Mortgage Loan shall be released
by the Custodian to the Servicer or its designee.

                  (c) Upon written certification of a Servicing Officer, the
Trustee shall execute and deliver to the Servicer or the Sub-Servicer, as the
case may be, copies of, any court pleadings, requests for trustee's sale or
other documents necessary to the foreclosure or trustee's sale in respect of a
Mortgaged Property or to any legal action brought to obtain judgment against any
Mortgagor on the Mortgage Note or Mortgage or to obtain a deficiency judgment,
or to enforce any other remedies or rights provided by the Mortgage Note or
Mortgage or otherwise available at law or in equity. Each such certification
shall include a request that such pleadings or documents be executed by the
Trustee and a statement as to the reason such documents or pleadings are
required and that the execution and delivery thereof by the Trustee will not
invalidate or otherwise affect the lien of the Mortgage, except for the
termination of such a lien upon completion of the foreclosure or trustee's sale.

                  SECTION 3.18. Servicing Compensation.

                  As compensation for its activities hereunder, the Servicer
shall be entitled to the Servicing Fee with respect to each Mortgage Loan
payable solely from payments of interest in respect of such Mortgage Loan,
subject to Section 3.24. In addition, the Servicer shall be entitled to recover
unpaid Servicing Fees out of Insurance Proceeds, Liquidation Proceeds or
condemnation proceeds to the extent permitted by Section 3.11(a)(iii) and out of
amounts derived from the operation and sale of an REO Property to the extent
permitted by Section 3.23. Except as provided in Section 3.29, the right to
receive the Servicing Fee may not be transferred in whole or in part except in
connection with the transfer of all of the Servicer's responsibilities and
obligations under this Agreement; provided, however, that the Servicer may pay
from the Servicing Fee any amounts due to a Sub-Servicer pursuant to a
Sub-Servicing Agreement entered into under Section 3.02.

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<PAGE>

                  Additional servicing compensation in the form of assumption
fees, late payment charges, insufficient funds charges, ancillary income or
otherwise (other than Prepayment Charges) shall be retained by the Servicer only
to the extent such fees or charges are received by the Servicer. The Servicer
shall also be entitled pursuant to Section 3.11(a)(iv) to withdraw from the
Collection Account and pursuant to Section 3.23(b) to withdraw from any REO
Account, as additional servicing compensation, interest or other income earned
on deposits therein, subject to Section 3.12 and Section 3.24. The Servicer
shall be required to pay all expenses incurred by it in connection with its
servicing activities hereunder (including premiums for the insurance required by
Section 3.14, to the extent such premiums are not paid by the related Mortgagors
or by a Sub-Servicer and servicing compensation of each Sub-Servicer) and shall
not be entitled to reimbursement therefor except as specifically provided
herein.

                  The Servicer shall be entitled to any Prepayment Interest
Excess, which it may withdraw from the Collection Account pursuant to Section
3.11(a)(ix).

                  SECTION 3.19. Reports to the Trustee; Collection Account
                                Statements.

                  Not later than twenty days after each Distribution Date, the
Servicer shall forward to the Trustee, the NIMS Insurer and the Depositor the
most current available bank statement for the Collection Account. Copies of such
statement shall be provided by the Trustee to any Certificateholder and to any
Person identified to the Trustee as a prospective transferee of a Certificate,
upon request at the expense of the requesting party, provided such statement is
delivered by the Servicer to the Trustee.

                  SECTION 3.20. Statement as to Compliance.

                  The Servicer will deliver to the Trustee, the NIMS Insurer and
the Depositor not later than March 15th of each calendar year, commencing in
2004, an Officers' Certificate, in a form similar to Exhibit L attached hereto,
stating, as to each signatory thereof, that (i) a review of the activities of
the Servicer during the preceding year and of performance under this Agreement
has been made under such officers' supervision and (ii) to the best of such
officers' knowledge, based on such review, the Servicer has fulfilled all of its
obligations under this Agreement throughout such year, or, if there has been a
default in the fulfillment of any such obligation, specifying each such default
known to such officer and the nature and status thereof. Copies of any such
statement shall be provided by the Trustee to any Certificateholder and to any
Person identified to the Trustee as a prospective transferee of a Certificate,
upon request at the expense of the requesting party, provided such statement is
delivered by the Servicer to the Trustee.

                  SECTION 3.21. Independent Public Accountants' Servicing
                                Report.

                  Not later than March 15th of each calendar year, commencing in
2004, the Servicer, at its expense, shall cause a nationally recognized firm of
independent certified public accountants to furnish to the Servicer a report
stating that (i) it has obtained a letter of representation regarding certain
matters from the management of the Servicer which includes an assertion that the
Servicer has complied with certain minimum residential mortgage loan servicing
standards, identified in the Uniform Single Attestation Program for Mortgage
Bankers established by the Mortgage Bankers

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Association of America, with respect to the servicing of residential mortgage
loans during the most recently completed calendar year and (ii) on the basis of
an examination conducted by such firm in accordance with standards established
by the American Institute of Certified Public Accountants, such representation
is fairly stated in all material respects, subject to such exceptions and other
qualifications that may be appropriate. In rendering its report such firm may
rely, as to matters relating to the direct servicing of residential mortgage
loans by Sub-Servicers, upon comparable reports of firms of independent
certified public accountants rendered on the basis of examinations conducted in
accordance with the same standards (rendered within one year of such report)
with respect to those Sub-Servicers. Immediately upon receipt of such report,
the Servicer shall furnish a copy of such report to the Trustee, the NIMS
Insurer and each Rating Agency. Copies of such statement shall be provided by
the Trustee to any Certificateholder upon request at the Servicer's expense,
provided that such statement is delivered by the Servicer to the Trustee.

                  SECTION 3.22. Access to Certain Documentation.

                  The Servicer shall provide to the Office of Thrift
Supervision, the FDIC, and any other federal or state banking or insurance
regulatory authority that may exercise authority over any Certificateholder,
access to the documentation regarding the Mortgage Loans required by applicable
laws and regulations. Such access shall be afforded without charge, but only
upon reasonable request and during normal business hours at the offices of the
Servicer designated by it. In addition, access to the documentation regarding
the Mortgage Loans will be provided to any Certificateholder, the Trustee, the
NIMS Insurer and to any Person identified to the Servicer as a prospective
transferee of a Certificate, upon reasonable request during normal business
hours at the offices of the Servicer designated by it at the expense of the
Person requesting such access.

                  SECTION 3.23. Title, Management and Disposition of REO
                                Property.

                  (a) The deed or certificate of sale of any REO Property shall
be taken in the name of the Trustee, or its nominee, in trust for the benefit of
the Certificateholders. The Servicer, on behalf of REMIC I, shall sell any REO
Property as soon as practical and in any event no later than the end of the
third full taxable year after the taxable year in which such REMIC acquires
ownership of such REO Property for purposes of Section 860G(a)(8) of the Code or
request from the Internal Revenue Service, no later than 60 days before the day
on which the three-year grace period would otherwise expire, an extension of
such three-year period, unless the Servicer shall have delivered to the Trustee
and the NIMS Insurer an Opinion of Counsel acceptable to the NIMS Insurer and
addressed to the Trustee, the NIMS Insurer and the Depositor, to the effect that
the holding by the REMIC of such REO Property subsequent to three years after
its acquisition will not result in the imposition on the REMIC of taxes on
"prohibited transactions" thereof, as defined in Section 860F of the Code, or
cause any of the REMICs created hereunder to fail to qualify as a REMIC under
Federal law at any time that any Certificates are outstanding. The Servicer
shall manage, conserve, protect and operate each REO Property for the
Certificateholders solely for the purpose of its prompt disposition and sale in
a manner which does not cause such REO Property to fail to qualify as
"foreclosure property" within the meaning of Section 860G(a)(8) of the Code or
result in the receipt by any of the REMICs created hereunder of any "income from
non-permitted assets" within the meaning of Section 860F(a)(2)(B) of the Code,
or any "net income from foreclosure property" which is subject to taxation under
the REMIC Provisions.

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<PAGE>

                  (b) The Servicer shall separately account for all funds
         collected and received in connection with the operation of any REO
         Property and shall establish and maintain, or cause to be established
         and maintained, with respect to REO Properties an account held in trust
         for the Trustee for the benefit of the Certificateholders (the "REO
         Account"), which shall be an Eligible Account. The Servicer shall be
         permitted to allow the Collection Account to serve as the REO Account,
         subject to separate ledgers for each REO Property. The Servicer shall
         be entitled to retain or withdraw any interest income paid on funds
         deposited in the REO Account.

                  (c) The Servicer shall have full power and authority, subject
         only to the specific requirements and prohibitions of this Agreement,
         to do any and all things in connection with any REO Property as are
         consistent with the manner in which the Servicer manages and operates
         similar property owned by the Servicer or any of its Affiliates, all on
         such terms and for such period (subject to the requirement of prompt
         disposition set forth in Section 3.23(a)) as the Servicer deems to be
         in the best interests of Certificateholders. In connection therewith,
         the Servicer shall deposit, or cause to be deposited in the REO
         Account, in no event more than two Business Days after the Servicer's
         receipt thereof, all revenues received by it with respect to an REO
         Property and shall withdraw therefrom funds necessary for the proper
         operation, management and maintenance of such REO Property including,
         without limitation:

                  (i) all insurance premiums due and payable in respect of such
         REO Property;

                  (ii) all real estate taxes and assessments in respect of such
         REO Property that may result in the imposition of a lien thereon; and

                  (iii) all costs and expenses necessary to maintain such REO
         Property.

                  To the extent that amounts on deposit in the REO Account with
respect to an REO Property are insufficient for the purposes set forth in
clauses (i) through (iii) above with respect to such REO Property, the Servicer
shall advance from its own funds such amount as is necessary for such purposes
if, but only if, the Servicer would make such advances if the Servicer owned the
REO Property and if in the Servicer's judgment, the payment of such amounts will
be recoverable from the rental or sale of the REO Property.

                  Notwithstanding the foregoing, neither the Servicer nor the
Trustee shall:

                  (A) authorize the Trust Fund to enter into, renew or extend
         any New Lease with respect to any REO Property, if the New Lease by its
         terms will give rise to any income that does not constitute Rents from
         Real Property;

                  (B) authorize any amount to be received or accrued under any
         New Lease other than amounts that will constitute Rents from Real
         Property;

                  (C) authorize any construction on any REO Property, other than
         the completion of a building or other improvement thereon, and then
         only if more than ten percent of the construction of such building or
         other improvement was completed before default on the

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<PAGE>

         related Mortgage Loan became imminent, all within the meaning of
         Section 856(e)(4)(B) of the Code; or

                  (D) authorize any Person to Directly Operate any REO Property
         on any date more than 90 days after its date of acquisition by the
         Trust Fund;

unless, in any such case, the Servicer has obtained an Opinion of Counsel,
provided to the Trustee and the NIMS Insurer, to the effect that such action
will not cause such REO Property to fail to qualify as "foreclosure property"
within the meaning of Section 860G(a)(8) of the Code at any time that it is held
by the REMIC, in which case the Servicer may take such actions as are specified
in such Opinion of Counsel.

                  The Servicer may contract with any Independent Contractor for
the operation and management of any REO Property, provided that:

                  (1) the terms and conditions of any such contract shall not be
         inconsistent herewith;

                  (2) any such contract shall require, or shall be administered
         to require, that the Independent Contractor pay all costs and expenses
         incurred in connection with the operation and management of such REO
         Property, including those listed above and remit all related revenues
         (net of such costs and expenses) to the Servicer as soon as
         practicable, but in no event later than thirty days following the
         receipt thereof by such Independent Contractor;

                  (3) none of the provisions of this Section 3.23(c) relating to
         any such contract or to actions taken through any such Independent
         Contractor shall be deemed to relieve the Servicer of any of its duties
         and obligations to the Trustee on behalf of the Certificateholders with
         respect to the operation and management of any such REO Property; and

                  (4) the Servicer shall be obligated with respect thereto to
         the same extent as if it alone were performing all duties and
         obligations in connection with the operation and management of such REO
         Property.

                  The Servicer shall be entitled to enter into any agreement
with any Independent Contractor performing services for it related to its duties
and obligations hereunder for indemnification of the Servicer by such
Independent Contractor, and nothing in this Agreement shall be deemed to limit
or modify such indemnification. The fees of such Independent Contractor may be
reimbursable as a Servicing Advance and, to the extent that any payments made by
such Independent Contractor would constitute Servicing Advances if made by the
Servicer, such amounts shall also be reimbursable as Servicing Advances made by
the Servicer.

                  (d) In addition to the withdrawals permitted under Section
3.23(c), the Servicer may from time to time make withdrawals from the REO
Account for any REO Property: (i) to pay itself or any Sub-Servicer unpaid
Servicing Fees in respect of the related Mortgage Loan; and (ii) to reimburse
itself or any Sub-Servicer for unreimbursed Servicing Advances and Advances made
in respect of such REO Property or the related Mortgage Loan. On the Servicer
Remittance Date, the

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<PAGE>

Servicer shall withdraw from each REO Account maintained by it and deposit into
the Distribution Account in accordance with Section 3.10(d)(ii), for
distribution on the related Distribution Date in accordance with Section 4.01,
the income from the related REO Property received during the prior calendar
month, net of any withdrawals made pursuant to Section 3.23(c) or this Section
3.23(d).

                  (e) Subject to the time constraints set forth in Section
3.23(a), each REO Disposition shall be carried out by the Servicer in a manner,
at such price and upon such terms and conditions as shall be normal and usual in
its Servicing Standard.

                  (f) The proceeds from the REO Disposition, net of any amount
required by law to be remitted to the Mortgagor under the related Mortgage Loan
and net of any payment or reimbursement to the Servicer or any Sub-Servicer as
provided above, shall be deposited in the Distribution Account in accordance
with Section 3.10(d)(ii) on the Servicer Remittance Date in the month following
the receipt thereof for distribution on the related Distribution Date in
accordance with Section 4.01. Any REO Disposition shall be for cash only (unless
changes in the REMIC Provisions made subsequent to the Startup Day allow a sale
for other consideration).

                  (g) The Servicer shall file information returns with respect
to the receipt of mortgage interest received in a trade or business, reports of
foreclosures and abandonments of any Mortgaged Property and cancellation of
indebtedness income with respect to any Mortgaged Property as required by the
Code. Such reports shall be in form and substance sufficient to meet the
reporting requirements of the Code.

                  SECTION 3.24. Obligations of the Servicer in Respect of
                                Prepayment Interest Shortfalls.

                  Not later than 1:00 p.m. New York time on each Servicer
Remittance Date, the Servicer shall remit to the Distribution Account an amount
("Compensating Interest") equal to the lesser of (A) the aggregate of the
Prepayment Interest Shortfalls for the related Distribution Date and (B) its
aggregate Servicing Fee received in the related Due Period. The Servicer shall
not have the right to reimbursement for any amounts remitted to the Trustee in
respect of Compensating Interest. Such amounts so remitted shall be included in
the Available Funds and distributed therewith on the next Distribution Date. The
Servicer shall not be obligated to pay Compensating Interest with respect to
Relief Act Interest Shortfalls.

                  SECTION 3.25. [Reserved].

                  SECTION 3.26. Obligations of the Servicer in Respect of
                                Mortgage Rates and Monthly Payments.

                  In the event that a shortfall in any collection on or
liability with respect to the Mortgage Loans in the aggregate results from or is
attributable to adjustments to Mortgage Rates, Monthly Payments or Stated
Principal Balances that were made by the Servicer in a manner not consistent
with the terms of the related Mortgage Note and this Agreement, the Servicer,
upon discovery or receipt of notice thereof, immediately shall deposit in the
Collection Account from its own funds the amount of any such shortfall and shall
indemnify and hold harmless the Trust Fund,

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<PAGE>

the Trustee, the Depositor and any successor servicer in respect of any such
liability. Such indemnities shall survive the termination or discharge of this
Agreement. Notwithstanding the foregoing, this Section 3.26 shall not limit the
ability of the Servicer to seek recovery of any such amounts from the related
Mortgagor under the terms of the related Mortgage Note, as permitted by law.

                  SECTION 3.27. [Reserved].

                  SECTION 3.28. [Reserved].

                  SECTION 3.29. Advance Facility.

                  (a) The Servicer and/or the Trustee on behalf of the Trust
Fund, in either case, with the consent of the NIMS Insurer and the Servicer in
the case of the Trustee, is hereby authorized to enter into a facility with any
Person which provides that such Person (an "Advancing Person") may fund Advances
and/or Servicing Advances to the Trust Fund under this Agreement, although no
such facility shall reduce or otherwise affect the Servicer's obligation to fund
such Advances and/or Servicing Advances. If the Servicer enters into such an
Advance Facility pursuant to this Section 3.29, upon reasonable request of the
Advancing Person, the Trustee shall execute a letter of acknowledgment,
confirming its receipt of notice of the existence of such Advance Facility. To
the extent that an Advancing Person funds any Advance or any Servicing Advance
and provides the Trustee with notice acknowledged by the Servicer that such
Advancing Person is entitled to reimbursement, such Advancing Person shall be
entitled to receive reimbursement pursuant to this Agreement for such amount to
the extent provided in Section 3.29(b). Such notice from the Advancing Person
must specify the amount of the reimbursement, the Section of this Agreement that
permits the applicable Advance or Servicing Advance to be reimbursed and the
section(s) of the Advance Facility that entitle the Advancing Person to request
reimbursement from the Trustee, rather than the Servicer, and include the
Servicer's acknowledgment thereto or proof of an Event of Default under the
Advance Facility. The Trustee shall have no duty or liability with respect to
any calculation of any reimbursement to be paid to an Advancing Person and shall
be entitled to rely without independent investigation on the Advancing Person's
notice provided pursuant to this Section 3.29. An Advancing Person whose
obligations hereunder are limited to the funding of Advances and/or Servicing
Advances shall not be required to meet the qualifications of a Servicer or a
Sub-Servicer pursuant to Section 6.06 hereof and will not be deemed to be a
Sub-Servicer under this Agreement. If the terms of a facility proposed to be
entered into with an Advancing Person by the Trust Fund would not materially and
adversely affect the interests of any Certificateholder, then the NIMS Insurer
shall not withhold its consent to the Trust Fund's entering such facility.

                  (b) If an Advancing Facility is entered into, then the
Servicer shall not be permitted to reimburse itself therefor under Section
3.11(a)(ii), Section 3.11(a)(iii), Section 3.11(a)(iv), Section 3.11(a)(vii),
Section 3.11(a)(viii) and Section 4.04(b) prior to the remittance to the Trust
Fund, but instead the Servicer shall include such amounts in the applicable
remittance to the Trustee made pursuant to Section 3.10(a). The Trustee is
hereby authorized to pay to the Advancing Person, reimbursements for Advances
and Servicing Advances from the Distribution Account to the same extent the
Servicer would have been permitted to reimburse itself for such Advances and/or
Servicing Advances in accordance with Section 3.11(a)(ii), Section 3.11(a)(iii),

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<PAGE>

Section 3.11(a)(vi), Section 3.11(a)(vii), Section 3.11(a)(viii) or Section
4.04(b), as the case may be, had the Servicer itself funded such Advance or
Servicing Advance. The Trustee is hereby authorized to pay directly to the
Advancing Person such portion of the Servicing Fee as the parties to any advance
facility agree.

                  (c) All Advances and Servicing Advances made pursuant to the
terms of this Agreement shall be deemed made and shall be reimbursed on a "first
in-first out" (FIFO) basis.

                  (d) Any amendment to this Section 3.29 or to any other
provision of this Agreement that may be necessary or appropriate to effect the
terms of an Advance Facility as described generally in this Section 3.29,
including amendments to add provisions relating to a successor servicer, may be
entered into by the Trustee and the Servicer without the consent of any
Certificateholder but with the consent of the NIMS Insurer, notwithstanding
anything to the contrary in this Agreement.

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<PAGE>

                                   ARTICLE IV

                         PAYMENTS TO CERTIFICATEHOLDERS

                  SECTION 4.01. Distributions.

                  (a)(1) On each Distribution Date, the following amounts, in
         the following order of priority, shall be distributed by REMIC I to
         REMIC II on account of the REMIC I Regular Interests or withdrawn from
         the Distribution Account and distributed to the holders of the Class R
         Certificates (in respect of the Class R-I Interest), as the case may
         be:

                  (i) (a) to Holders of REMIC I Regular Interest I-LTAA, REMIC I
         Regular Interest I-LTA1, REMIC I Regular Interest I-LTA3A, REMIC I
         Regular Interest I-LTA3B, REMIC I Regular Interest I-LTM1, REMIC I
         Regular Interest I-LTM2, REMIC I Regular Interest I-LTM3, REMIC I
         Regular Interest I-LTM4, REMIC I Regular Interest I-LTM5, REMIC I
         Regular Interest I-LTM6, REMIC I Regular Interest I-LTZZ and REMIC I
         Regular Interest I-LTP, PRO RATA, in an amount equal to (A) the
         Uncertificated Interest for such Distribution Date, plus (B) any
         amounts in respect thereof remaining unpaid from previous Distribution
         Dates. Amounts payable as Uncertificated Interest in respect of REMIC I
         Regular Interest I-LTZZ shall be reduced and deferred when the REMIC I
         Overcollateralized Amount is less than the REMIC I Required
         Overcollateralization Amount, by the lesser of (x) the amount of such
         difference and (y) the Maximum I-LTZZ Uncertificated Interest Deferral
         Amount and such amount will be payable to the Holders of REMIC I
         Regular Interest I-LTA1, REMIC I Regular Interest I-LTA3A, REMIC I
         Regular Interest I-LTA3B, REMIC I Regular Interest I-LTM1, REMIC I
         Regular Interest I-LTM2, REMIC I Regular Interest I-LTM3, REMIC I
         Regular Interest I-LTM4, REMIC I Regular Interest I-LTM5 and REMIC I
         Regular Interest I-LTM6 in the same proportion as the
         Overcollateralization Deficiency Amount is allocated to the
         Corresponding Certificates; and

                           (b) to Holders of REMIC I Regular Interest I-LT1SUB,
         REMIC I Regular Interest I-LT1GRP, REMIC I Regular Interest I-LT2SUB,
         REMIC I Regular Interest I- LT2GRP and REMIC I Regular Interest I-LTXX,
         PRO RATA, in an amount equal to (A) the Uncertificated Interest for
         such Distribution Date, plus (B) any amounts in respect thereof
         remaining unpaid from previous Distribution Dates;

                  (ii) second, to the Holders of REMIC I Regular Interests, in
         an amount equal to the remainder of the REMIC I Marker Allocation
         Percentage of Available Funds for such Distribution Date after the
         distributions made pursuant to clause (i) above, allocated as follows:

                           (a) to the Holders of REMIC I Regular Interest I-LTAA
         and REMIC I Regular Interest I-LTP, 98.00% of such remainder (other
         than amounts payable under clause (d) below), until the Uncertificated
         Balance of such REMIC I Regular Interest is reduced to zero, provided,
         however, that REMIC I Regular Interest I-LTP shall not be reduced until
         the Distribution Date immediately following the expiration of the
         latest Prepayment Charge as identified on the Prepayment Charge
         Schedule or any Distribution Date thereafter, at which

                                      -86-

<PAGE>

         point such amount shall be distributed to REMIC I Regular Interest
         I-LTP, until $100 has been distributed pursuant to this clause;

                           (b) to the Holders of REMIC I Regular Interest
         I-LTA1, REMIC I Regular Interest I-LTA3A, REMIC I Regular Interest
         I-LTA3B, REMIC I Regular Interest I-LTM1, REMIC I Regular Interest
         I-LTM2, REMIC I Regular Interest I-LTM3, REMIC I Regular Interest
         I-LTM4, REMIC I Regular Interest I-LTM5 and REMIC I Regular Interest
         I-LTM6, 1.00% of such remainder (other than amounts payable under
         clause (d) below), in the same proportion as principal payments are
         allocated to the Corresponding Certificates, until the Uncertificated
         Balances of such REMIC I Regular Interests are reduced to zero;

                           (c) to the Holders of REMIC I Regular Interest
         I-LTZZ, 1.00% of such remainder (other than amounts payable under
         clause (d) below), until the Uncertificated Balance of such REMIC I
         Regular Interest is reduced to zero; then

                           (d) any remaining amount to the Holders of the Class
         R Certificates (in respect of the Class R-I Interest);

         provided, however, that (i) 98.00% and (ii) 2.00% of any principal
         payments that are attributable to an Overcollateralization Release
         Amount shall be allocated to Holders of (i) REMIC I Regular Interest
         I-LTAA and REMIC I Regular Interest I-LTP, in that order and (ii) REMIC
         I Regular Interest I-LTZZ, respectively; provided that REMIC I Regular
         Interest I-LTP shall not be reduced until the Distribution Date
         immediately following the expiration of the latest Prepayment Charge as
         identified on the Prepayment Charge Schedule or any Distribution Date
         thereafter, at which point such amount shall be distributed to REMIC I
         Regular Interest I-LTP, until $100 has been distributed pursuant to
         this clause.

                  On each Distribution Date, all amounts representing Prepayment
         Charges in respect of the Mortgage Loans received during the related
         Prepayment Period and any Servicer Prepayment Charge Payment Amount
         paid by the Servicer during the related Prepayment Period will be
         distributed by REMIC I to the Holders of REMIC I Regular Interest
         I-LTP. The payment of the foregoing amounts to the Holders of REMIC I
         Regular Interest I-LTP shall not reduce the Uncertificated Balance
         thereof.

                  (iii) to the Holders of REMIC I Regular Interests, in an
         amount equal to the remainder of the REMIC I Sub WAC Allocation
         Percentage of Available Funds for such Distribution Date after the
         distributions made pursuant to clause (i) above, allocated so that:

                           distributions of principal shall be deemed to be made
         to the REMIC I Regular Interests first, so as to keep the
         Uncertificated Balance of each REMIC I Regular Interest ending with the
         designation "GRP" equal to 0.01% of the aggregate Stated Principal
         Balance of the Mortgage Loans in the related Loan Group; second, to
         each REMIC I Regular Interest ending with the designation "SUB," so
         that the Uncertificated Balance of each such REMIC I Regular Interest
         is equal to 0.01% of the excess of (x) the aggregate Stated Principal
         Balance of the Mortgage Loans in the related Loan Group over (y) the
         Certificate Principal Balance of the Class A Certificate in the related
         Loan Group (except that if any such excess

                                      -87-

<PAGE>

         is a larger number than in the preceding distribution period, the least
         amount of principal shall be distributed to such REMIC I Regular
         Interests such that the REMIC I Subordinated Balance Ratio is
         maintained); and third, any remaining principal to REMIC I Regular
         Interest I-LTXX.

                  (2)(I) On each Distribution Date, the Trustee shall withdraw
         from the Distribution Account that portion of Available Funds for such
         Distribution Date consisting of the Group I Interest Remittance Amount
         for such Distribution Date, and make the following disbursements and
         transfers in the order of priority described below, in each case to the
         extent of the Group I Interest Remittance Amount remaining for such
         Distribution Date:

                  (i) to the Holders of the Class A-1 Certificates, the Monthly
         Interest Distributable Amount and the Unpaid Interest Shortfall Amount,
         if any, for such Certificates for such Distribution Date; and

                  (ii) concurrently, to the Holders of the Class A-3A
         Certificates and the Class A- 3B Certificates on a PRO RATA basis,
         based on the entitlement of each such Class, an amount equal to the
         excess, if any, of (x) the amount required to be distributed pursuant
         to Section 4.01(a)(2)(II)(i) below, for such Distribution Date over (y)
         the amount actually distributed pursuant to such section from the Group
         II Interest Remittance Amount.

                  (II) On each Distribution Date the Trustee shall withdraw from
         the Distribution Account that portion of Available Funds for such
         Distribution Date consisting of the Group II Interest Remittance Amount
         for such Distribution Date, and make the following disbursements and
         transfers in the order of priority described below, in each case to the
         extent of the Group II Interest Remittance Amount remaining for such
         Distribution Date:

                  (i) concurrently, to the Holders of the Class A-3A
         Certificates and the Class A- 3B Certificates, the Monthly Interest
         Distributable Amount and the Unpaid Interest Shortfall Amount, if any,
         for such Certificates for such Distribution Date on a PRO RATA basis
         based on the entitlement of each such class; and

                  (ii) to the Holders of the Class A-1 Certificates, an amount
         equal to the excess, if any, of (x) the amount required to be
         distributed pursuant to Section 4.01(a)(2)(I)(i) above for such
         Distribution Date over (y) the amount actually distributed pursuant to
         such section from the Group I Interest Remittance Amount.

                  (III) On each Distribution Date, following the distributions
         made pursuant to Section 4.01(a)(2)(I) and (II) above, the Trustee
         shall make the following disbursements and transfers in the order of
         priority described below, in each case to the extent of the sum of the
         Group I Interest Remittance Amount and the Group II Interest Remittance
         Amount remaining undistributed for such Distribution Date:

                  (i) to the Holders of the Class M-1 Certificates, the Monthly
         Interest Distributable Amount allocable to such Certificates;

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<PAGE>

                  (ii) to the Holders of the Class M-2 Certificates, the Monthly
         Interest Distributable Amount allocable to such Certificates;

                  (iii) to the Holders of the Class M-3 Certificates, the
         Monthly Interest Distributable Amount allocable to such Certificates;

                  (iv) to the Holders of the Class M-4 Certificates, the Monthly
         Interest Distributable Amount allocable to such Certificates;

                  (v) to the Holders of the Class M-5 Certificates, the Monthly
         Interest Distributable Amount allocable to such Certificates; and

                  (vi) to the Holders of the Class M-6 Certificates, the Monthly
         Interest Distributable Amount allocable to such Certificates.

                  (3)(I) On each Distribution Date (a) prior to the Stepdown
         Date or (b) on which a Trigger Event is in effect, distributions in
         respect of principal to the extent of the Group I Principal
         Distribution Amount shall be made in the following amounts and order of
         priority:

                  (i) first, to the Holders of the Class A-1 Certificates, until
         the Certificate Principal Balance thereof has been reduced to zero;

                  (ii) second, after taking into account the amount distributed
         to the Holders of the Class A-3A Certificates pursuant to Section
         4.01(a)(3)(II)(i) below on such Distribution Date, to the Holders of
         the Class A-3A Certificates, until the Certificate Principal Balance
         thereof has been reduced to zero; and

                  (iii) third, after taking into account the amount distributed
         to the Holders of the Class A-3B Certificates pursuant to Section
         4.01(a)(3)(II)(ii) below on such Distribution Date, to the Holders of
         the Class A-3B Certificates, until the Certificate Principal Balance
         thereof has been reduced to zero.

                  (II) On each Distribution Date (a) prior to the Stepdown Date
         or (b) on which a Trigger Event is in effect, distributions in respect
         of principal to the extent of the Group II Principal Distribution
         Amount shall be made in the following amounts and order of priority:

                  (i) first, to the Holders of the Class A-3A Certificates,
         until the Certificate Principal Balance thereof has been reduced to
         zero;

                  (ii) second, to the Holders of the Class A-3B Certificates,
         until the Certificate Principal Balance thereof has been reduced to
         zero; and

                  (iii) third, after taking into account the amount distributed
         to the Holders of the Class A-1 Certificates pursuant to Section
         4.01(a)(3)(I)(i) above on such Distribution Date, to the Holders of the
         Class A-1 Certificates until the Certificate Principal Balance thereof
         has been reduced to zero.

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<PAGE>

                  (III) On each Distribution Date (a) prior to the Stepdown Date
         or (b) on which a Trigger Event is in effect, distributions in respect
         of principal to the extent of the sum of the Group I Principal
         Distribution Amount and the Group II Principal Distribution Amount
         remaining undistributed for such Distribution Date shall be made in the
         following amounts and order of priority:

                  (i) first, to the Holders of the Class M-1 Certificates, until
         the Certificate Principal Balance thereof has been reduced to zero;

                  (ii) second, to the Holders of the Class M-2 Certificates,
         until the Certificate Principal Balance thereof has been reduced to
         zero;

                  (iii) third, to the Holders of the Class M-3 Certificates,
         until the Certificate Principal Balance thereof has been reduced to
         zero;

                  (iv) fourth, to the Holders of the Class M-4 Certificates,
         until the Certificate Principal Balance thereof has been reduced to
         zero;

                  (v) fifth, to the Holders of the Class M-5 Certificates, until
         the Certificate Principal Balance thereof has been reduced to zero; and

                  (vi) sixth, to the Holders of the Class M-6 Certificates,
         until the Certificate Principal Balance thereof has been reduced to
         zero.

                  (IV) On each Distribution Date (a) on or after the Stepdown
         Date and (b) on which a Trigger Event is not in effect, distributions
         in respect of principal to the extent of the Group I Principal
         Distribution Amount shall be made in the following amounts and order of
         priority:

                  (i) first, to the Holders of the Class A-1 Certificates, the
         Class A-1 Principal Distribution Amount until the Certificate Principal
         Balance thereof has been reduced to zero;

                  (ii) second, to the extent of the portion, if any, of the
         Class A-1 Principal Distribution Amount remaining undistributed
         pursuant to Section 4.01(a)(3)(IV)(i) above on such Distribution Date,
         and after taking into account the amount distributed to the Holders of
         the Class A-3A Certificates pursuant to Section 4.01(a)(3)(V)(i) below,
         to the holders of the Class A-3A Certificates, until the Certificate
         Principal Balance thereof has been reduced to zero;

                  (iii) third, to the Holders of the Class A-3A Certificates, an
         amount equal to the excess, if any, of (x) the amount required to be
         distributed pursuant to Section 4.01(a)(3)(V)(i) below for such
         Distribution Date over (y) the sum of (A) the amount actually
         distributed pursuant to Section 4.01(a)(3)(V)(i) below from the Group
         II Principal Distribution Amount on such Distribution Date and (B) the
         amount, if any, distributed to the Holders of the Class A-3A
         Certificates pursuant to Section 4.01(a)(3)(IV)(ii) above on such
         Distribution Date;

                                      -90-

<PAGE>

                  (iv) fourth, to the extent of the portion, if any, of the
         Class A-1 Principal Distribution Amount remaining undistributed
         pursuant to Section 4.01(a)(3)(IV)(i) above on such Distribution Date,
         and after taking into account the amount distributed to the Holders of
         the Class A-3B Certificates pursuant to Section 4.01(a)(3)(V)(ii)
         below, to the holders of the Class A-3B Certificates, until the
         Certificate Principal Balance thereof has been reduced to zero;

                  (v) fifth, to the Holders of the Class A-3B Certificates, an
         amount equal to the excess, if any, of (x) the amount required to be
         distributed pursuant to Section 4.01(a)(3)(V)(ii) below for such
         Distribution Date over (y) the sum of (A) the amount actually
         distributed pursuant to Section 4.01(a)(3)(V)(ii) below from the Group
         II Principal Distribution Amount on such Distribution Date and (B) the
         amount, if any, distributed to the Holders of the Class A-3B
         Certificates pursuant to Section 4.01(a)(3)(IV)(iv) above on such
         Distribution Date;

                  (V) On each Distribution Date (a) on or after the Stepdown
         Date and (b) on which a Trigger Event is not in effect, distributions
         in respect of principal to the extent of the Group II Principal
         Distribution Amount shall be made in the following amounts and order of
         priority:

                  (i) first, to the Holders of the Class A-3A Certificates, the
         Class A-3 Principal Distribution Amount until the Certificate Principal
         Balance thereof has been reduced to zero;

                  (ii) second, to the Holders of the Class A-3B Certificates,
         the Class A-3 Principal Distribution Amount, remaining after the
         distributions set forth in V(i) above, until the Certificate Principal
         Balance thereof has been reduced to zero;

                  (iii) third, to the extent of the portion, if any, of the
         Class A-3 Principal Distribution Amount remaining undistributed
         pursuant to Sections 4.01(a)(3)(V)(i) and 4.01(a)(3)(V)(ii) above on
         such Distribution Date, and after taking into account the amount
         distributed to the Holders of the Class A-1 Certificates pursuant to
         Section 4.01(a)(3)(IV)(i) above on such Distribution Date, to the
         Holders of the Class A-1 Certificates, until the Certificate Principal
         Balance thereof has been reduced to zero; and

                  (iv) fourth, to the Holders of the Class A-1 Certificates, an
         amount equal to the excess, if any, of (x) the amount required to be
         distributed pursuant to Section 4.01(a)(3)(IV)(i) above for such
         Distribution Date over (y) the sum of (A) the amount actually
         distributed pursuant to Section 4.01(a)(3)(IV)(i) above from the Group
         I Principal Distribution Amount on such Distribution Date and (B) the
         amount, if any, distributed to the Holders of the Class A-1
         Certificates pursuant to Section 4.01(a)(3)(V)(iii) above on such
         Distribution Date.

                  (VI) On each Distribution Date (a) on or after the Stepdown
         Date and (b) on which a Trigger Event is not in effect, distributions
         in respect of principal to the extent of the sum of the Group I
         Principal Distribution Amount and the Group II Principal Distribution
         Amount remaining

                                      -91-

<PAGE>

undistributed for such Distribution Date shall be made in the following amounts
and order of priority:

                  (i) first, to the Holders of the Class M-1 Certificates, the
         Class M-1 Principal Distribution Amount until the Certificate Principal
         Balance thereof has been reduced to zero;

                  (ii) second, to the Holders of the Class M-2 Certificates, the
         Class M-2 Principal Distribution Amount until the Certificate Principal
         Balance thereof has been reduced to zero;

                  (iii) third, to the Holders of the Class M-3 Certificates, the
         Class M-3 Principal Distribution Amount until the Certificate Principal
         Balance thereof has been reduced to zero;

                  (iv) fourth, to the Holders of the Class M-4 Certificates, the
         Class M-4 Principal Distribution Amount until the Certificate Principal
         Balance thereof has been reduced to zero;

                  (v) fifth, to the Holders of the Class M-5 Certificates, the
         Class M-5 Principal Distribution Amount until the Certificate Principal
         Balance thereof has been reduced to zero; and

                  (vi) sixth, to the Holders of the Class M-6 Certificates, the
         Class M-6 Principal Distribution Amount until the Certificate Principal
         Balance thereof has been reduced to zero.

                  On any Distribution Date on which Realized Losses have reduced
the Certificate Principal Balance of the Mezzanine Certificates to zero,
notwithstanding anything contained in this Section 4.01(a)(3) to the contrary,
all payments of principal to the Class A-3A Certificates and the Class A-3B
Certificates will be paid on a PRO RATA basis based on the entitlement of each
such class.

                  (4) On each Distribution Date, the Net Monthly Excess Cashflow
         shall be distributed as follows:

                  (i) to the Holders of the Class or Classes of Certificates
         then entitled to receive distributions in respect of principal, in an
         amount equal to any Extra Principal Distribution Amount, distributable
         to such Holders as part of the Group I Principal Distribution Amount
         and/or the Group II Principal Distribution Amount as described under
         Section 4.01(a)(3) above;

                  (ii) to the Holders of the Class M-1 Certificates, in an
         amount equal to the Unpaid Interest Shortfall Amount allocable to such
         Certificates;

                  (iii) to the Holders of the Class M-1 Certificates, in an
         amount equal to the Allocated Realized Loss Amount allocable to such
         Certificates;

                  (iv) to the Holders of the Class M-2 Certificates, in an
         amount equal to the Unpaid Interest Shortfall Amount allocable to such
         Certificates;

                                      -92-

<PAGE>

                  (v) to the Holders of the Class M-2 Certificates, in an amount
         equal to the Allocated Realized Loss Amount allocable to such
         Certificates;

                  (vi) to the Holders of the Class M-3 Certificates, in an
         amount equal to the Unpaid Interest Shortfall Amount allocable to such
         Certificates;

                  (vii) to the Holders of the Class M-3 Certificates, in an
         amount equal to the Allocated Realized Loss Amount allocable to such
         Certificates;

                  (viii) to the Holders of the Class M-4 Certificates, in an
         amount equal to the Unpaid Interest Shortfall Amount allocable to such
         Certificates;

                  (ix) to the Holders of the Class M-4 Certificates, in an
         amount equal to the Allocated Realized Loss Amount allocable to such
         Certificates;

                  (x) to the Holders of the Class M-5 Certificates, in an amount
         equal to the Unpaid Interest Shortfall Amount allocable to such
         Certificates;

                  (xi) to the Holders of the Class M-5 Certificates, in an
         amount equal to the Allocated Realized Loss Amount allocable to such
         Certificates;

                  (xii) to the Holders of the Class M-6 Certificates, in an
         amount equal to the Unpaid Interest Shortfall Amount allocable to such
         Certificates;

                  (xiii) to the Holders of the Class M-6 Certificates, in an
         amount equal to the Allocated Realized Loss Amount allocable to such
         Certificates;

                  (xiv) to the Net WAC Rate Carryover Reserve Account, the
         amount of any Net WAC Rate Carryover Amount and any other amounts
         required by Section 4.07;

                  (xv) to the Holders of the Class CE Certificates, the Monthly
         Interest Distributable Amount for such Class and any remaining
         Overcollateralization Release Amount for such Distribution Date;

                  (xvi) if such Distribution Date follows the Prepayment Period
         during which occurs the latest date on which a Prepayment Charge may be
         required to be paid in respect of any Mortgage Loans, to the Holders of
         the Class P Certificates, in reduction of the Certificate Principal
         Balance thereof, until the Certificate Principal Balance thereof is
         reduced to zero; and

                  (xvii) any remaining amounts to the Holders of the Residual
         Certificates (in respect of the appropriate Class R Interest).

                  Without limiting the provisions of Section 9.01(b), by
acceptance of the Residual Certificates the Holders of the Residual Certificates
agree, and it is the understanding of the parties hereto, that for so long as
any of the notes issued pursuant to the Indenture are outstanding or any

                                      -93-

<PAGE>

amounts are reimbursable or payable to the NIMS Insurer in accordance with the
terms of the Indenture, to pledge their rights to receive any amounts otherwise
distributable to the Holders of the Class R Certificates (and such rights are
hereby assigned and transferred) to the Holders of the Class CE Certificates.

                  (b) On each Distribution Date, after making the distributions
of the Available Funds as set forth above, the Trustee will FIRST, withdraw from
the Net WAC Rate Carryover Reserve Account all income from the investment of
funds in the Net WAC Rate Carryover Reserve Account and distribute such amount
to the Holders of the Class CE Certificates, and SECOND, withdraw from the Net
WAC Rate Carryover Reserve Account, to the extent of amounts remaining on
deposit therein, the amount of any Net WAC Rate Carryover Amount for such
Distribution Date and distribute such amount first, concurrently to the Class
A-1 Certificates, the Class A-3A Certificates and the Class A-3B Certificates,
on a PRO RATA basis based on the Net WAC Rate Carryover Amounts for each such
Class, until each such amount has been distributed in full; second, to the Class
M-1 Certificates, third, to the Class M-2 Certificates, fourth, to the Class M-3
Certificates, fifth, to the Class M-4 Certificates, sixth, to the Class M-5
Certificates, seventh, to the Class M-6 Certificates.

                  On each Distribution Date, the Trustee shall withdraw any
amounts then on deposit in the Distribution Account that represent (i)
Prepayment Charges collected by the Servicer in connection with the Principal
Prepayment of any of the Mortgage Loans or (ii) any Servicer Prepayment Charge
Payment Amount, and shall distribute such amounts to the Holders of the Class P
Certificates. Such distributions shall not be applied to reduce the Certificate
Principal Balance of the Class P Certificates.

                  (c) All distributions made with respect to each Class of
Certificates on each Distribution Date shall be allocated PRO RATA among the
outstanding Certificates in such Class based on their respective Percentage
Interests. Distributions in respect of each Class of Certificates on each
Distribution Date will be made to the Holders of the respective Class of record
on the related Record Date (except as otherwise provided in Section 4.01(e) or
Section 9.01 respecting the final distribution on such Class), based on the
aggregate Percentage Interest represented by their respective Certificates, and
shall be made by wire transfer of immediately available funds to the account of
any such Holder at a bank or other entity having appropriate facilities
therefor, if such Holder shall have so notified the Trustee in writing at least
five Business Days prior to the Record Date immediately prior to such
Distribution Date and is the registered owner of Certificates having an initial
aggregate Certificate Principal Balance or Notional Amount that is in excess of
the lesser of (i) $5,000,000 or (ii) two-thirds of the initial Certificate
Principal Balance or Notional Amount of such Class of Certificates, or otherwise
by check mailed by first class mail to the address of such Holder appearing in
the Certificate Register. The final distribution on each Certificate will be
made in like manner, but only upon presentment and surrender of such Certificate
at the Corporate Trust Office of the Trustee or such other location specified in
the notice to Certificateholders of such final distribution.

                  Each distribution with respect to a Book-Entry Certificate
shall be paid to the Depository, as Holder thereof, and the Depository shall be
responsible for crediting the amount of such distribution to the accounts of its
Depository Participants in accordance with its normal procedures. Each
Depository Participant shall be responsible for disbursing such distribution to
the

                                      -94-

<PAGE>

Certificate Owners that it represents and to each indirect participating
brokerage firm (a "brokerage firm" or "indirect participating firm") for which
it acts as agent. Each brokerage firm shall be responsible for disbursing funds
to the Certificate Owners that it represents. None of the Trustee, the Depositor
or the Servicer shall have any responsibility therefor except as otherwise
provided by this Agreement or applicable law.

                  (d) The rights of the Certificateholders to receive
         distributions in respect of the Certificates, and all interests of the
         Certificateholders in such distributions, shall be as set forth in this
         Agreement. None of the Holders of any Class of Certificates, the
         Trustee or the Servicer shall in any way be responsible or liable to
         the Holders of any other Class of Certificates in respect of amounts
         properly previously distributed on the Certificates.

                  (e) Except as otherwise provided in Section 9.01, whenever the
         Trustee expects that the final distribution with respect to any Class
         of Certificates will be made on the next Distribution Date, the Trustee
         shall, no later than three (3) days before the related Distribution
         Date, mail to each Holder on such date of such Class of Certificates a
         notice to the effect that:

                  (i) the Trustee expects that the final distribution with
         respect to such Class of Certificates will be made on such Distribution
         Date but only upon presentation and surrender of such Certificates at
         the office of the Trustee therein specified, and

                  (ii) no interest shall accrue on such Certificates from and
         after the end of the related Accrual Period.

                  Any funds not distributed to any Holder or Holders of
Certificates of such Class on such Distribution Date because of the failure of
such Holder or Holders to tender their Certificates shall, on such date, be set
aside and held in trust by the Trustee and credited to the account of the
appropriate non-tendering Holder or Holders. If any Certificates as to which
notice has been given pursuant to this Section 4.01(e) shall not have been
surrendered for cancellation within six months after the time specified in such
notice, the Trustee shall mail a second notice to the remaining non-tendering
Certificateholders to surrender their Certificates for cancellation in order to
receive the final distribution with respect thereto. If within one year after
the second notice all such Certificates shall not have been surrendered for
cancellation, the Trustee shall, directly or through an agent, mail a final
notice to the remaining non-tendering Certificateholders concerning surrender of
their Certificates but shall continue to hold any remaining funds for the
benefit of non-tendering Certificateholders. The costs and expenses of
maintaining the funds in trust and of contacting such Certificateholders shall
be paid out of the assets remaining in the Trust Fund. If within one year after
the final notice any such Certificates shall not have been surrendered for
cancellation, the Trustee shall pay to UBS Securities LLC all such amounts, and
all rights of non-tendering Certificateholders in or to such amounts shall
thereupon cease. No interest shall accrue or be payable to any Certificateholder
on any amount held in trust by the Trustee as a result of such
Certificateholder's failure to surrender its Certificate(s) for final payment
thereof in accordance with this Section 4.01(e). Any such amounts held in trust
by the Trustee shall be held in an Eligible Account and the Trustee may direct
any depository institution maintaining such account to invest the funds in one
or more Permitted Investments. All income and gain realized from the investment
of funds deposited in such accounts held in trust by the Trustee shall be for
the benefit of the Trustee; provided,

                                      -95-

<PAGE>

however, that the Trustee shall deposit in such account the amount of any loss
of principal incurred in respect of any such Permitted Investment made with
funds in such accounts immediately upon the realization of such loss.

                  (f) Notwithstanding anything to the contrary herein, (i) in no
event shall the Certificate Principal Balance of a Class A Certificate or a
Mezzanine Certificate be reduced more than once in respect of any particular
amount both (a) allocated to such Certificate in respect of Realized Losses
pursuant to Section 4.04 and (b) distributed to the Holder of such Certificate
in reduction of the Certificate Principal Balance thereof pursuant to this
Section 4.01 from Net Monthly Excess Cashflow and (ii) in no event shall the
Uncertificated Balance of a REMIC I Regular Interest be reduced more than once
in respect of any particular amount both (a) allocated to such REMIC I Regular
Interest in respect of Realized Losses pursuant to Section 4.04 and (b)
distributed on such REMIC I Regular Interest in reduction of the Uncertificated
Balance thereof pursuant to this Section 4.01.

                  SECTION 4.02. Statements to Certificateholders.

                  On each Distribution Date, the Trustee shall prepare and make
available on its website at www.usbank.com/abs for access by each Holder of the
Regular Certificates and the NIMS Insurer, a statement as to the distributions
made on such Distribution Date setting forth:

                  (i) the amount of the distribution made on such Distribution
         Date to the Holders of the Certificates of each Class allocable to
         principal, and the amount of the distribution made on such Distribution
         Date to the Holders of the Class P Certificates allocable to Prepayment
         Charges and Servicer Prepayment Charge Payment Amounts;

                  (ii) the amount of the distribution made on such Distribution
         Date to the Holders of the Certificates of each Class allocable to
         interest;

                  (iii) the aggregate Servicing Fee received by the Servicer
         during the related Due Period and such other customary information as
         the Trustee deems necessary or desirable, or which a Certificateholder
         reasonably requests, to enable Certificateholders to prepare their tax
         returns;

                  (iv) the aggregate amount of Advances for such Distribution
         Date;

                  (v) the aggregate Stated Principal Balance of the Mortgage
         Loans and any REO Properties as of the close of business on such
         Distribution Date;

                  (vi) the number, aggregate Principal Balance, weighted average
         remaining term to maturity and weighted average Mortgage Rate of the
         Mortgage Loans as of the related Due Date;

                  (vii) the number and aggregate unpaid principal balance of
         Mortgage Loans (a) delinquent 30 to 59 days, (b) delinquent 60 to 89
         days, (c) delinquent 90 or more days, in each case, as of the last day
         of the preceding calendar month, (d) as to which foreclosure

                                      -96-

<PAGE>

         proceedings have been commenced and (e) with respect to which the
         related Mortgagor has filed for protection under applicable bankruptcy
         laws, with respect to whom bankruptcy proceedings are pending or with
         respect to whom bankruptcy protection is in force;

                  (viii) the total number and cumulative principal balance of
         all REO Properties as of the close of business on the last day of the
         preceding Prepayment Period;

                  (ix) [reserved];

                  (x) the aggregate amount of Principal Prepayments made during
         the related Prepayment Period;

                  (xi) the aggregate amount of Realized Losses incurred during
         the related Prepayment Period and the aggregate amount of Realized
         Losses incurred since the Closing Date;

                  (xii) the aggregate amount of Extraordinary Trust Fund
         Expenses withdrawn from the Collection Account or the Distribution
         Account for such Distribution Date;

                  (xiii) the aggregate Certificate Principal Balance and
         Notional Amount, as applicable, of each Class of Certificates, after
         giving effect to the distributions, and allocations of Realized Losses,
         made on such Distribution Date, separately identifying any reduction
         thereof due to allocations of Realized Losses;

                  (xiv) the Certificate Factor for each such Class of
         Certificates applicable to such Distribution Date;

                  (xv) the Monthly Interest Distributable Amount in respect of
         the Class A Certificates, the Mezzanine Certificates and the Class CE
         Certificates for such Distribution Date and the Unpaid Interest
         Shortfall Amount, if any, with respect to the Class A Certificates and
         the Mezzanine Certificates on such Distribution Date, separately
         identifying any reduction thereof due to allocations of Realized
         Losses, Prepayment Interest Shortfalls and Relief Act Interest
         Shortfalls;

                  (xvi) the aggregate amount of any Prepayment Interest
         Shortfall for such Distribution Date, to the extent not covered by
         payments by the Servicer pursuant to Section 3.24;

                  (xvii) the aggregate amount of Relief Act Interest Shortfalls
         for such Distribution Date;

                  (xviii) the Overcollateralization Target Amount,
         Overcollateralized Amount and Overcollateralization Deficiency Amount
         and the Credit Enhancement Percentage for such
         Distribution Date;

                                      -97-

<PAGE>

                  (xix) the respective Pass-Through Rates applicable to the
         Class A Certificates, the Mezzanine Certificates and the Class CE
         Certificates for such Distribution Date and the Pass-Through Rate
         applicable to the Class A Certificates and the Mezzanine Certificates
         for the immediately succeeding Distribution Date;

                  (xx) [reserved];

                  (xxi) the Aggregate Loss Severity Percentage;

                  (xxii) when the Stepdown Date or Trigger Event has occurred;

                  (xxiii) the Available Funds;

                  (xxiv) the Net WAC Rate Carryover Amount for the Class A
         Certificates and the Mezzanine Certificates, if any, for such
         Distribution Date, the amount remaining unpaid after reimbursements
         therefor on such Distribution Date;

                  (xxv) [reserved]; and

                  (xxvi) [reserved].

                  In the case of information furnished pursuant to subclauses
(i) through (iii) above, the amounts shall be expressed as a dollar amount per
Single Certificate of the relevant Class.

                  Within a reasonable period of time after the end of each
calendar year, the Trustee shall, upon written request, furnish to each Person
who at any time during the calendar year was a Holder of a Regular Certificate
and the NIMS Insurer a statement containing the information set forth in
subclauses (i) through (iii) above, aggregated for such calendar year or
applicable portion thereof during which such person was a Certificateholder.
Such obligation of the Trustee shall be deemed to have been satisfied to the
extent that substantially comparable information shall be provided by the
Trustee pursuant to any requirements of the Code as from time to time are in
force.

                  On each Distribution Date, the Trustee shall make available on
its website at www.usbank.com/abs for access by the Depositor, the NIMS Insurer,
the Trustee, each Holder of a Residual Certificate and the Servicer, the reports
available to the Regular Certificateholders on such Distribution Date and a
statement setting forth the amounts, if any, actually distributed with respect
to the Residual Certificates, respectively, on such Distribution Date.

                  Within a reasonable period of time after the end of each
calendar year, the Trustee shall furnish to each Person who at any time during
the calendar year was a Holder of a Residual Certificate and the NIMS Insurer a
statement setting forth the amount, if any, actually distributed with respect to
the Residual Certificates, as appropriate, aggregated for such calendar year or
applicable portion thereof during which such Person was a Certificateholder.

                  The Trustee shall, upon request, furnish to each
Certificateholder and the NIMS Insurer, during the term of this Agreement, such
periodic, special, or other reports or information,

                                      -98-

<PAGE>

whether or not provided for herein, as shall be reasonable with respect to the
Certificateholder, or otherwise with respect to the purposes of this Agreement,
all such reports or information to be provided at the expense of the
Certificateholder in accordance with such reasonable and explicit instructions
and directions as the Certificateholder may provide. For purposes of this
Section 4.02, the Trustee's duties are limited to the extent that the Trustee
receives timely reports as required from the Servicer.

                  On each Distribution Date the Trustee shall provide Bloomberg
Financial Markets, L.P. ("Bloomberg") CUSIP level factors for each class of
Certificates as of such Distribution Date, using a format and media mutually
acceptable to the Trustee and Bloomberg.

                  SECTION 4.03. Remittance Reports; Advances.

                  (a) Not later than 2:00 p.m. New York time on the third
Business Day following each Determination Date but in no event later than the
earlier of (i) such date which would allow the indenture trustee to submit a
claim to the NIMS Insurer under the Indenture so as to allow a timely payment by
the NIMS Insurer under the insurance policy related to the notes insured by the
NIMS Insurer and (ii) the 20th day of each month (or if such 20th day is not a
Business Day, the preceding Business Day), the Servicer shall deliver to the
Trustee, the Originator and the NIMS Insurer by telecopy or electronic mail (or
by such other means as the Servicer and the Trustee may agree from time to time)
a Remittance Report with respect to the related Distribution Date. On the same
date, the Servicer shall forward to the Trustee by overnight mail a computer
readable magnetic tape or electronically transmit (in a format acceptable to the
Trustee) a data file containing the information set forth in such Remittance
Report with respect to the related Distribution Date. Such Remittance Report
will include (i) the amount of Advances to be made by the Servicer in respect of
the related Distribution Date, the aggregate amount of Advances outstanding
after giving effect to such Advances, and the aggregate amount of Nonrecoverable
Advances in respect of such Distribution Date and (ii) such other information
with respect to the Mortgage Loans as the Trustee may reasonably require to
perform the calculations necessary to make the distributions contemplated by
Section 4.01, to prepare the statements to Certificateholders contemplated by
Section 4.02 and to prepare the Certification required by Section 4.06. The
Trustee shall not be responsible to recompute, recalculate or verify any
information provided to it by the Servicer.

                  (b) The amount of Advances to be made by the Servicer for any
Distribution Date shall equal, subject to Section 4.03(d), the sum of (i) the
aggregate amount of Monthly Payments (with each interest portion thereof net of
the related Servicing Fee), due on the related Due Date in respect of the
Mortgage Loans, which Monthly Payments were delinquent as of the close of
business on the related Determination Date and (ii) with respect to each REO
Property, which REO Property was acquired during or prior to the related
Prepayment Period and as to which REO Property an REO Disposition did not occur
during the related Prepayment Period, an amount equal to the excess, if any, of
the REO Imputed Interest on such REO Property for the most recently ended
calendar month, over the net income from such REO Property transferred to the
Distribution Account pursuant to Section 3.23 for distribution on such
Distribution Date. For purposes of the preceding sentence, the Monthly Payment
on each Balloon Mortgage Loan with a delinquent Balloon Payment is equal to the
assumed monthly payment that would have been due on the related Due Date based
on the original principal amortization schedule for the such Balloon Mortgage
Loan.

                                      -99-

<PAGE>

                  By 1:00 p.m. New York time on the Servicer Remittance Date,
the Servicer shall remit in immediately available funds to the Trustee for
deposit in the Distribution Account an amount equal to the aggregate amount of
Advances, if any, to be made in respect of the Mortgage Loans and REO Properties
for the related Distribution Date either (i) from its own funds or (ii) from the
Collection Account, to the extent of funds held therein for future distribution
(in which case it will cause to be made an appropriate entry in the records of
Collection Account that amounts held for future distribution have been, as
permitted by this Section 4.03, used by the Servicer in discharge of any such
Advance) or (iii) in the form of any combination of (i) and (ii) aggregating the
total amount of Advances to be made by the Servicer with respect to the Mortgage
Loans and REO Properties. Any amounts held for future distribution and so used
shall be appropriately reflected in the Servicer's records and replaced by the
Servicer by deposit in the Collection Account on or before any future Servicer
Remittance Date to the extent that the Available Funds for the related
Distribution Date (determined without regard to Advances to be made on the
Servicer Remittance Date) shall be less than the total amount that would be
distributed to the Certificateholders pursuant to Section 4.01 on such
Distribution Date if such amounts held for future distributions had not been so
used to make Advances. The Trustee will provide notice to the Servicer and the
NIMS Insurer by telecopy by the close of business on the third Business Day
prior to the Distribution Date in the event that the amount remitted by the
Servicer to the Trustee on such date is less than the Advances required to be
made by the Servicer for the related Distribution Date.

                  (c) The obligation of the Servicer to make such Advances is
mandatory, notwithstanding any other provision of this Agreement but subject to
(d) below, and, with respect to any Mortgage Loan or REO Property, shall
continue until a Final Recovery Determination in connection therewith or the
removal thereof from the Trust Fund pursuant to any applicable provision of this
Agreement, except as otherwise provided in this Section.

                  (d) Notwithstanding anything herein to the contrary, no
Advance or Servicing Advance shall be required to be made hereunder by the
Servicer if such Advance or Servicing Advance would, if made, constitute a
Nonrecoverable Advance or Nonrecoverable Servicing Advance, respectively. The
determination by the Servicer that it has made a Nonrecoverable Advance or a
Nonrecoverable Servicing Advance or that any proposed Advance or Servicing
Advance, if made, would constitute a Nonrecoverable Advance or Nonrecoverable
Servicing Advance, respectively, shall be evidenced by an Officers' Certificate
of the Servicer delivered to the Depositor, the NIMS Insurer and the Trustee.

                  SECTION 4.04. Allocation of Realized Losses.

                  (a) Prior to each Determination Date, the Servicer shall
determine as to each Mortgage Loan and REO Property: (i) the total amount of
Realized Losses, if any, incurred in connection with any Final Recovery
Determinations made during the related Prepayment Period; and (ii) the
respective portions of such Realized Losses allocable to interest and allocable
to principal. Prior to each Determination Date, the Servicer shall also
determine as to each Mortgage Loan: (i) the total amount of Realized Losses, if
any, incurred in connection with any Deficient Valuations made during the
related Prepayment Period; and (ii) the total amount of Realized Losses, if any,
incurred in connection with Debt Service Reductions in respect of Monthly
Payments due during the related Due Period. The information described in the
preceding sentence that is to be

                                      -100-

<PAGE>

supplied by the Servicer shall be evidenced by an Officers' Certificate
delivered to the Trustee by the Servicer prior to the Determination Date
immediately following the end of the Prepayment Period during which any such
Realized Loss was incurred.

                  (b) All Realized Losses on the Mortgage Loans shall be
allocated by the Trustee on each Distribution Date as follows: first, to Net
Monthly Excess Cashflow; second, to the Class CE Certificates, until the
Certificate Principal Balance thereof has been reduced to zero; third, to the
Class M-6 Certificates, until the Certificate Principal Balance thereof has been
reduced to zero; fourth, to the Class M-5 Certificates, until the Certificate
Principal Balance thereof has been reduced to zero; fifth, to the Class M-4
Certificates, until the Certificate Principal Balance thereof has been reduced
to zero; sixth, to the Class M-3 Certificates, until the Certificate Principal
Balance thereof has been reduced to zero; seventh, to the Class M-2
Certificates, until the Certificate Principal Balance thereof has been reduced
to zero; and eighth, to the Class M-1 Certificates, until the Certificate
Principal Balance thereof has been reduced to zero. All Realized Losses to be
allocated to the Certificate Principal Balances of all Classes on any
Distribution Date shall be so allocated after the actual distributions to be
made on such date as provided above. All references above to the Certificate
Principal Balance of any Class of Certificates shall be to the Certificate
Principal Balance of such Class immediately prior to the relevant Distribution
Date, before reduction thereof by any Realized Losses, in each case to be
allocated to such Class of Certificates, on such Distribution Date.

                  Any allocation of Realized Losses to a Mezzanine Certificate
on any Distribution Date shall be made by reducing the Certificate Principal
Balance thereof by the amount so allocated; any allocation of Realized Losses to
a Class CE Certificate shall be made by reducing the amount otherwise payable in
respect thereof pursuant to Section 4.01(a)(4)(xiii). No allocations of any
Realized Losses shall be made to the Certificate Principal Balances of the Class
A Certificates or the Class P Certificates.

                  As used herein, an allocation of a Realized Loss on a "PRO
RATA basis" among two or more specified Classes of Certificates means an
allocation on a PRO RATA basis, among the various Classes so specified, to each
such Class of Certificates on the basis of their then outstanding Certificate
Principal Balances prior to giving effect to distributions to be made on such
Distribution Date. All Realized Losses and all other losses allocated to a Class
of Certificates hereunder will be allocated among the Certificates of such Class
in proportion to the Percentage Interests evidenced thereby.

                  (c)(i) The REMIC I Marker Percentage of all Realized Losses on
the Mortgage Loans shall be allocated by the Trustee on each Distribution Date
to the following REMIC I Regular Interests in the specified percentages, as
follows: first, to Uncertificated Interest payable to the REMIC I Regular
Interest I-LTAA and REMIC I Regular Interest I-LTZZ up to an aggregate amount
equal to the REMIC I Interest Loss Allocation Amount, 98% and 2%, respectively;
second, to the Uncertificated Balances of the REMIC I Regular Interest I-LTAA
and REMIC I Regular Interest I- LTZZ up to an aggregate amount equal to the
REMIC I Principal Loss Allocation Amount, 98% and 2%, respectively; third, to
the Uncertificated Balances of REMIC I Regular Interest I-LTAA, REMIC I Regular
Interest I-LTM6 and REMIC I Regular Interest I-LTZZ, 98%, 1% and 1%,
respectively, until the Uncertificated Balances of REMIC I Regular Interest
I-LTM6 has been reduced to zero; fourth, to the Uncertificated Balances of REMIC
I Regular Interest I-LTAA, REMIC I Regular

                                      -101-

<PAGE>

Interest I-LTM5 and REMIC I Regular Interest I-LTZZ, 98%, 1% and 1%,
respectively, until the Uncertificated Balance of REMIC I Regular Interest
I-LTM5 has been reduced to zero; fifth, to the Uncertificated Balances of REMIC
I Regular Interest I-LTAA, REMIC I Regular Interest I-LTM4 and REMIC I Regular
Interest I-LTZZ, 98%, 1% and 1%, respectively, until the Uncertificated Balance
of REMIC I Regular Interest I-LTM4 has been reduced to zero; sixth, to the
Uncertificated Balances of REMIC I Regular Interest I-LTAA, REMIC I Regular
Interest I-LTM3 and REMIC I Regular Interest I-LTZZ, 98%, 1% and 1%,
respectively, until the Uncertificated Balance of REMIC I Regular Interest
I-LTM3 has been reduced to zero; seventh to the Uncertificated Balances of REMIC
I Regular Interest I-LTAA, REMIC I Regular Interest I-LTM2 and REMIC I Regular
Interest I-LTZZ, 98%, 1% and 1%, respectively, until the Uncertificated Balance
of REMIC I Regular Interest I-LTM2 has been reduced to zero; and eighth, to the
Uncertificated Balances of REMIC I Regular Interest I-LTAA, REMIC I Regular
Interest I-LTM1 and REMIC I Regular Interest II-LTZZ, 98%, 1% and 1%,
respectively, until the Uncertificated Balance of REMIC I Regular Interest I-
LTM1 has been reduced to zero.

                  (ii) The REMIC I Sub WAC Allocation Percentage of all Realized
Losses shall be applied after all distributions have been made on each
Distribution Date first, so as to keep the Uncertificated Balance of each REMIC
I Regular Interest ending with the designation "GRP" equal to 0.01% of the
aggregate Stated Principal Balance of the Mortgage Loans in the related Loan
Group; second, to each REMIC I Regular Interest ending with the designation
"SUB," so that the Uncertificated Balance of each such REMIC I Regular Interest
is equal to 0.01% of the excess of (x) the aggregate Stated Principal Balance of
the Mortgage Loans in the related Loan Group over (y) the Certificate Principal
Balance of the Class A Certificate in the related Loan Group (except that if any
such excess is a larger number than in the preceding distribution period, the
least amount of Realized Losses shall be applied to such REMIC I Regular
Interests such that the REMIC I Subordinated Balance Ratio is maintained); and
third, any remaining Realized Losses shall be allocated to REMIC I Regular
Interest I-LTXX.

                  SECTION 4.05. Compliance with Withholding Requirements

                  Notwithstanding any other provision of this Agreement, the
Trustee shall comply with all federal withholding requirements respecting
payments to Certificateholders of interest or original issue discount that the
Trustee reasonably believes are applicable under the Code. The consent of
Certificateholders shall not be required for such withholding. In the event the
Trustee does withhold any amount from interest or original issue discount
payments or advances thereof to any Certificateholder pursuant to federal
withholding requirements, the Trustee shall indicate the amount withheld to such
Certificateholders.

                  SECTION 4.06. Exchange Commission; Additional Information.

                  (a) The Trustee and the Servicer shall reasonably cooperate
with the Depositor in connection with satisfying the reporting requirements of
the Trust Fund under the Exchange Act. The Trustee shall prepare and sign on
behalf of the Trust Fund any Forms 8-K customary for similar securities as
required by the Exchange Act and the Rules and Regulations of the Commission
thereunder, and the Trustee shall file (via the Commission's Electronic Data
Gathering and Retrieval System) such forms on behalf of the Trust Fund. The
Trustee shall prepare and sign any Form 10-K

                                      -102-

<PAGE>

which includes as exhibits (i) the Certification (as defined in (b) below), (ii)
the Servicer's annual statement of compliance described under Section 3.20 and
(iii) the accountant's report described under Section 3.21 and the Trustee shall
file (via the Commission's Electronic Data Gathering and Retrieval System) such
forms on behalf of the Trust Fund. To the extent that the Commission requires
any additional information to be filed pursuant to a Form 10-K, the Trustee,
shall prepare, sign and promptly file an amended Form 10-K containing such
additional information. To the extent that the Servicer acquires actual
knowledge of material information (as determined by the Servicer in good faith)
concerning the Trust Fund, it shall notify the Trustee of such information.

                  (b) Each Form 8-K shall be filed by the Trustee within 15 days
after each Distribution Date with a copy of the Monthly Statement for such
Distribution Date as an exhibit thereto. Prior to March 31st of each year (or
such earlier date as may be required by the Exchange Act and the Rules and
Regulations of the Commission), the Trustee shall file a Form 10-K, in substance
as required by applicable law or applicable Commission staff's interpretations.
Such Form 10-K shall include as exhibits the Servicer's annual statement of
compliance described under Section 3.20 and the accountant's report described
under Section 3.21, in each case to the extent they have been timely delivered
to the Trustee. If they are not so timely delivered, the Trustee shall file an
amended Form 10-K including such documents as exhibits reasonably promptly after
they are delivered to the Trustee. The Trustee shall have no liability with
respect to any failure to properly prepare or file such periodic reports
resulting from or relating to (a) the Trustee's inability or failure to obtain
any information not resulting from its own negligence or willful misconduct or
(b) any inaccuracy in such periodic reports resulting from incorrect information
provided to the Trustee by the Servicer in a Remittance Report or otherwise. The
Form 10-K shall also include a certification in the form attached hereto as
Exhibit J-1 (the "Certification"), which shall be signed by the Trustee.

                  (c) In addition, the Servicer shall sign a certification (in
the form attached hereto as Exhibit J-2) for the benefit of the Trustee and its
officers, directors and Affiliates regarding certain aspects of the
Certification (provided, however, that the Servicer shall not undertake an
analysis of the accountant's report attached as an exhibit to the Form 10-K).
The Servicer's certification shall be delivered to the Trustee by no later than
March 15th of each year (or if such day is not a Business Day, the immediately
preceding Business Day).

                  In addition, (i) the Trustee shall, subject to the provisions
of Sections 8.01 and 8.02, indemnify and hold harmless the Depositor and the
Servicer and their respective officers, directors and Affiliates from and
against any losses, damages, penalties, fines, forfeitures, reasonable and
necessary legal fees and related costs, judgments and other costs and expenses
arising out of or based upon a breach of the Trustee's obligations under Section
4.06(b) or the Trustee's negligence, bad faith or willful misconduct in
connection therewith, and (ii) the Servicer shall indemnify and hold harmless
the Depositor, the Trustee and their respective officers, directors and
Affiliates from and against any losses, damages, penalties, fines, forfeitures,
reasonable and necessary legal fees and related costs, judgments and other costs
and expenses arising out of or based upon a breach of the Servicer's obligations
under this Section 4.06(b) or the Servicer's negligence, bad faith or willful
misconduct in connection therewith. If the indemnification provided for herein
is unavailable or insufficient to hold harmless the Depositor or the Servicer,
then (i) the Trustee agrees that it shall contribute to the amount paid or
payable by the Depositor or the Servicer, as applicable, as a result of the
losses, claims, damages or liabilities of the Depositor or the Servicer, as
applicable, in such

                                      -103-

<PAGE>

proportion as is appropriate to reflect the relative fault of the or the
Depositor or the Servicer, as applicable, on the one hand and the Trustee on the
other in connection with a breach of the Trustee's obligations under this
Section 4.06(b) or the Trustee's negligence, bad faith or willful misconduct in
connection therewith and (ii) the Servicer agrees that it shall contribute to
the amount paid or payable by the Depositor or the Trustee, as applicable, as a
result of the losses, claims, damages or liabilities of the Depositor or the
Trustee, as applicable, in such proportion as is appropriate to reflect the
relative fault of the Depositor or the Trustee, as applicable, on the one hand
and the Servicer on the other in connection with a breach of the Servicer's
obligations under this Section 4.06(b) or the Servicer's negligence, bad faith
or willful misconduct in connection therewith. Notwithstanding any other
provision in this Agreement to the contrary, the Servicer shall not have any
responsibility or liability to any party relating to the certification or
information prepared, certified or distributed by the Trustee or any other party
other than the Servicer unless such information was derived from erroneous or
incomplete information required to be provided by the Servicer under this
Agreement.

                  (d) Upon any filing with the Commission pursuant to this
Section 4.06(b), the Trustee shall promptly deliver to the Depositor a copy of
any executed report, statement or information.

                  (e) Prior to January 30 of the first year in which the Trustee
is able to do so under applicable law, the Trustee shall file a Form 15
Suspension Notification with respect to the Trust Fund.

                  SECTION 4.07. Net WAC Rate Carryover Reserve Account.

                  No later than the Closing Date, the Trustee shall establish
and maintain with itself a separate, segregated trust account titled, "Net WAC
Rate Carryover Reserve Account, U.S. Bank National Association, as Trustee, in
trust for the registered holders of MASTR Asset Backed Securities Trust
2003-WMC2, Mortgage Pass-Through Certificates." On the Closing Date, the
Depositor will deposit, or cause to be deposited, into the Net WAC Rate
Carryover Reserve Account $1,000.

                  On each Distribution Date as to which there is a Net WAC Rate
Carryover Amount payable to the Class A Certificates and/or the Mezzanine
Certificates, the Trustee has been directed by the Class CE Certificateholders
to, and therefore will, deposit into the Net WAC Rate Carryover Reserve Account
the amounts described in Section 4.01(a)(4)(xv), rather than distributing such
amounts to the Class CE Certificateholders. On each such Distribution Date, the
Trustee shall hold all such amounts for the benefit of the Holders of the Class
A Certificates and the Mezzanine Certificates, and will distribute such amounts
to the Holders of the Class A Certificates and/or the Mezzanine Certificates in
the amounts and priorities set forth in Section 4.01(d). If no Net WAC Rate
Carryover Amounts are payable on a Distribution Date, the Trustee shall deposit
into the Net WAC Rate Carryover Reserve Account on behalf of the Class CE
Certificateholders, from amounts otherwise distributable to the Class CE
Certificateholders, an amount such that when added to other amounts already on
deposit in the Net WAC Rate Carryover Reserve Account, the aggregate amount on
deposit therein is equal to $1,000.

                                      -104-

<PAGE>

                  For federal and state income tax purposes, the Class CE
Certificateholders will be deemed to be the owners of the Net WAC Rate Carryover
Reserve Account and all amounts deposited into the Net WAC Rate Carryover
Reserve Account (other than the initial deposit therein of $1,000) shall be
treated as amounts distributed by REMIC II to the Holders of the Class CE
Interest and by REMIC III to the Holders of the Class CE Certificates. Upon the
termination of the Trust Fund, or the payment in full of the Class A
Certificates and the Mezzanine Certificates, all amounts remaining on deposit in
the Net WAC Rate Carryover Reserve Account will be released by the Trust Fund
and distributed to the Class CE Certificateholders or their designees. The Net
WAC Rate Carryover Reserve Account will be part of the Trust Fund but not part
of any REMIC and any payments to the Holders of the Class A Certificates or the
Mezzanine Certificates of Net WAC Rate Carryover Amounts will not be payments
with respect to a "regular interest" in a REMIC within the meaning of Code
Section 860(G)(a)(1).

                  By accepting a Class CE Certificate, each Class CE
Certificateholder hereby agrees to direct the Trustee, and the Trustee hereby is
directed, to deposit into the Net WAC Rate Carryover Reserve Account the amounts
described above on each Distribution Date as to which there is any Net WAC Rate
Carryover Amount rather than distributing such amounts to the Class CE
Certificateholders. By accepting a Class CE Certificate, each Class CE
Certificateholder further agrees that such direction is given for good and
valuable consideration, the receipt and sufficiency of which is acknowledged by
such acceptance.

                  At the direction of the Holders of a majority in Percentage
Interest in the Class CE Certificates, the Trustee shall direct any depository
institution maintaining the Net WAC Rate Carryover Reserve Account to invest the
funds in such account in one or more Permitted Investments bearing interest or
sold at a discount, and maturing, unless payable on demand, (i) no later than
the Business Day immediately preceding the date on which such funds are required
to be withdrawn from such account pursuant to this Agreement, if a Person other
than the Trustee or an Affiliate manages or advises such investment, and (ii) no
later than the date on which such funds are required to be withdrawn from such
account pursuant to this Agreement, if the Trustee or an Affiliate manages or
advises such investment. If no investment direction of the Holders of a majority
in Percentage Interest in the Class CE Certificates with respect to the Net WAC
Rate Carryover Reserve Account is received by the Trustee, the Trustee shall
invest the funds in such account in Permitted Investments managed by the Trustee
or an Affiliate of the kind described in clause (vi) of the definition of
Permitted Investments. All income and gain earned upon such investment shall be
deposited into the Net WAC Rate Carryover Reserve Account.

                  For federal tax return and information reporting, the right of
the Class A Certificateholders and the Mezzanine Certificateholders to receive
payments from the Net WAC Rate Carryover Reserve Account in respect of any Net
Wac Rate Carryover Amount shall be assigned a value of zero.

                                      -105-

<PAGE>

                                    ARTICLE V

                                THE CERTIFICATES

                  SECTION 5.01. The Certificates.

                  (a) The Certificates in the aggregate will represent the
entire beneficial ownership interest in the Mortgage Loans and all other assets
included in REMIC I.

                  The Certificates will be substantially in the forms annexed
hereto as Exhibits A-1 through A-12. The Certificates of each Class will be
issuable in registered form only, in denominations of authorized Percentage
Interests as described in the definition thereof. Each Certificate will share
ratably in all rights of the related Class.

                  Upon original issue, the Certificates shall be executed by the
Trustee and authenticated and delivered by the Trustee to or upon the order of
the Depositor. The Certificates shall be executed by manual or facsimile
signature on behalf of the Trustee by an authorized signatory. Certificates
bearing the manual or facsimile signatures of individuals who were at any time
the proper officers of the Trustee shall bind the Trustee notwithstanding that
such individuals or any of them have ceased to hold such offices prior to the
authentication and delivery of such Certificates or did not hold such offices at
the date of such Certificates. No Certificate shall be entitled to any benefit
under this Agreement or be valid for any purpose, unless there appears on such
Certificate a certificate of authentication substantially in the form provided
herein executed by the Trustee by manual signature, and such certificate of
authentication shall be conclusive evidence, and the only evidence, that such
Certificate has been duly authenticated and delivered hereunder. All
Certificates shall be dated the date of their authentication.

                  (b) The Class A Certificates and the Mezzanine Certificates
shall initially be issued as one or more Certificates held by the Book-Entry
Custodian or, if appointed to hold such Certificates as provided below, the
Depository and registered in the name of the Depository or its nominee and,
except as provided below, registration of such Certificates may not be
transferred by the Trustee except to another Depository that agrees to hold such
Certificates for the respective Certificate Owners with Ownership Interests
therein. The Certificate Owners shall hold their respective Ownership Interests
in and to such Certificates through the book-entry facilities of the Depository
and, except as provided below, shall not be entitled to definitive, fully
registered Certificates ("Definitive Certificates") in respect of such Ownership
Interests. All transfers by Certificate Owners of their respective Ownership
Interests in the Book-Entry Certificates shall be made in accordance with the
procedures established by the Depository Participant or brokerage firm
representing such Certificate Owner. Each Depository Participant shall only
transfer the Ownership Interests in the Book-Entry Certificates of Certificate
Owners it represents or of brokerage firms for which it acts as agent in
accordance with the Depository's normal procedures. The Trustee is hereby
initially appointed as the Book-Entry Custodian and hereby agrees to act as such
in accordance herewith and in accordance with the agreement that it has with the
Depository authorizing it to act as such. The Book-Entry Custodian may, and, if
it is no longer qualified to act as such, the Book- Entry Custodian shall,
appoint, by a written instrument delivered to the Depositor, the Servicer and
the Trustee, any other transfer agent (including the Depository or any successor
Depository) to act

                                      -106-

<PAGE>

as Book-Entry Custodian under such conditions as the predecessor Book-Entry
Custodian and the Depository or any successor Depository may prescribe, provided
that the predecessor Book-Entry Custodian shall not be relieved of any of its
duties or responsibilities by reason of any such appointment of other than the
Depository. If the Trustee resigns or is removed in accordance with the terms
hereof, the Trustee, the successor trustee or, if it so elects, the Depository
shall immediately succeed to its predecessor's duties as Book-Entry Custodian.
The Depositor shall have the right to inspect, and to obtain copies of, any
Certificates held as Book-Entry Certificates by the Book-Entry Custodian.

                  The Trustee, the Servicer and the Depositor may for all
purposes (including the making of payments due on the Book-Entry Certificates)
deal with the Depository as the authorized representative of the Certificate
Owners with respect to the Book-Entry Certificates for the purposes of
exercising the rights of Certificateholders hereunder. The rights of Certificate
Owners with respect to the Book-Entry Certificates shall be limited to those
established by law and agreements between such Certificate Owners and the
Depository Participants and brokerage firms representing such Certificate
Owners. Multiple requests and directions from, and votes of, the Depository as
Holder of the Book-Entry Certificates with respect to any particular matter
shall not be deemed inconsistent if they are made with respect to different
Certificate Owners. The Trustee may establish a reasonable record date in
connection with solicitations of consents from or voting by Certificateholders
and shall give notice to the Depository of such record date.

                  If (i)(A) the Depositor advises the Trustee in writing that
the Depository is no longer willing or able to properly discharge its
responsibilities as Depository, and (B) the Depositor is unable to locate a
qualified successor, (ii) the Depositor at its option advises the Trustee in
writing that it elects to terminate the book-entry system through the Depository
or (iii) after the occurrence of a Servicer Event of Default, Certificate Owners
representing in the aggregate not less than 51% of the Ownership Interests of
the Book-Entry Certificates advise the Trustee through the Depository, in
writing, that the continuation of a book-entry system through the Depository is
no longer in the best interests of the Certificate Owners, the Trustee shall
notify all Certificate Owners, through the Depository, of the occurrence of any
such event and of the availability of Definitive Certificates to Certificate
Owners requesting the same. Upon surrender to the Trustee of the Book-Entry
Certificates by the Book-Entry Custodian or the Depository, as applicable,
accompanied by registration instructions from the Depository for registration of
transfer, the Trustee shall cause the Definitive Certificates to be issued. Such
Definitive Certificates will be issued in minimum denominations of $25,000,
except that any beneficial ownership that was represented by a Book- Entry
Certificate in an amount less than $25,000 immediately prior to the issuance of
a Definitive Certificate shall be issued in a minimum denomination equal to the
amount represented by such Book-Entry Certificate. None of the Depositor, the
Servicer, the Trustee shall be liable for any delay in the delivery of such
instructions and may conclusively rely on, and shall be protected in relying on,
such instructions. Upon the issuance of Definitive Certificates all references
herein to obligations imposed upon or to be performed by the Depository shall be
deemed to be imposed upon and performed by the Trustee, to the extent applicable
with respect to such Definitive Certificates, and the Trustee shall recognize
the Holders of the Definitive Certificates as Certificateholders hereunder.

                                      -107-

<PAGE>

                  SECTION 5.02. Registration of Transfer and Exchange of
                                Certificates.

                  (a) The Trustee shall cause to be kept at one of the offices
or agencies to be appointed by the Trustee in accordance with the provisions of
Section 8.11, a Certificate Register for the Certificates in which, subject to
such reasonable regulations as it may prescribe, the Trustee shall provide for
the registration of Certificates and of transfers and exchanges of Certificates
as herein provided.

                  (b) No transfer of any Class CE Certificate, Class P
Certificate or Residual Certificate shall be made unless that transfer is made
pursuant to an effective registration statement under the Securities Act of
1933, as amended (the "1933 Act"), and effective registration or qualification
under applicable state securities laws, or is made in a transaction that does
not require such registration or qualification. In the event that such a
transfer of a Class CE Certificate, Class P Certificate or Residual Certificate
is to be made without registration or qualification (other than in connection
with the initial transfer of any such Certificate by the Depositor to an
affiliate of the Depositor), the Trustee shall require receipt of: (i) if such
transfer is purportedly being made in reliance upon Rule 144A under the 1933
Act, written certifications from the Certificateholder desiring to effect the
transfer and from such Certificateholder's prospective transferee, substantially
in the forms attached hereto as Exhibit F-1; and (ii) in all other cases, an
Opinion of Counsel satisfactory to it that such transfer may be made without
such registration or qualification (which Opinion of Counsel shall not be an
expense of the Trust Fund or of the Depositor, the Trustee, the Servicer in its
capacity as such or any Sub-Servicer), together with copies of the written
certification(s) of the Certificateholder desiring to effect the transfer and/or
such Certificateholder's prospective transferee upon which such Opinion of
Counsel is based, if any. None of the Depositor, the Servicer or the Trustee is
obligated to register or qualify any such Certificates under the 1933 Act or any
other securities laws or to take any action not otherwise required under this
Agreement to permit the transfer of such Certificates without registration or
qualification. Any Certificateholder desiring to effect the transfer of any such
Certificate shall, and does hereby agree to, indemnify the Trustee, the
Depositor and the Servicer against any liability that may result if the transfer
is not so exempt or is not made in accordance with such federal and state laws.

                  (c) No transfer of a Class CE Certificate, Class P Certificate
or Residual Certificate or any interest therein shall be made to any Plan
subject to ERISA or Section 4975 of the Code, any Person acting, directly or
indirectly, on behalf of any such Plan or any Person acquiring such Certificates
with "Plan Assets" of a Plan within the meaning of the Department of Labor
regulation promulgated at 29 C. F. R. ss. 2510.3-101 ("Plan Assets"), as
certified by such transferee in the form of Exhibit G, unless the Trustee is
provided with an Opinion of Counsel for the benefit of the Trustee, the
Depositor and the Servicer and on which they may rely which establishes to the
satisfaction of the Depositor, the Trustee and the Servicer that the purchase of
such Certificates is permissible under applicable law, will not constitute or
result in any prohibited transaction under ERISA or Section 4975 of the Code and
will not subject the Depositor, the Servicer, the NIMS Insurer, the Trustee or
the Trust Fund to any obligation or liability (including obligations or
liabilities under ERISA or Section 4975 of the Code) in addition to those
undertaken in this Agreement, which Opinion of Counsel shall not be an expense
of the Depositor, the Servicer, the Trustee or the Trust Fund. Neither an
Opinion of Counsel nor any certification will be required in connection with the
initial transfer of any such Certificate by the Depositor to an affiliate of the
Depositor (in which case,

                                      -108-

<PAGE>

the Depositor or any affiliate thereof shall have deemed to have represented
that such affiliate is not a Plan or a Person investing Plan Assets) and the
Trustee shall be entitled to conclusively rely upon a representation (which,
upon the request of the Trustee, shall be a written representation) from the
Depositor of the status of such transferee as an affiliate of the Depositor.

                  Each beneficial owner of a Mezzanine Certificates or any
interest therein shall be deemed to have represented, by virtue of its
acquisition or holding of that certificate or interest therein, that either (i)
it is not a Plan investor, (ii) it has acquired and is holding such Mezzanine
Certificates in reliance on the Underwriters' Exemption, and that it understands
that there are certain conditions to the availability of the Underwriters'
Exemption, including that the Mezzanine Certificates must be rated, at the time
of purchase, not lower than "BBB-" (or its equivalent) by Fitch, Moody's or S&P
or (iii) (1) it is an insurance company, (2) the source of funds used to acquire
or hold the certificate or interest therein is an "insurance company general
account," as such term is defined in PTCE 95-60, and (3) the conditions in
Sections I and III of PTCE 95-60 have been satisfied.

                  If any Mezzanine Certificate, Class CE Certificate, Class P
Certificate or Residual Certificate or any interest therein is acquired or held
in violation of the provisions of the preceding two paragraphs, the next
preceding permitted beneficial owner will be treated as the beneficial owner of
that Certificate retroactive to the date of transfer to the purported beneficial
owner. Any purported beneficial owner whose acquisition or holding of any such
Certificate or interest therein was effected in violation of the provisions of
the preceding two paragraphs shall indemnify and hold harmless the Depositor,
the Servicer, the NIMS Insurer, the Trustee and the Trust Fund from and against
any and all liabilities, claims, costs or expenses incurred by those parties as
a result of that acquisition or holding.

                  (d)(i) Each Person who has or who acquires any Ownership
         Interest in a Residual Certificate shall be deemed by the acceptance or
         acquisition of such Ownership Interest to have agreed to be bound by
         the following provisions and to have irrevocably authorized the Trustee
         or its designee under clause (iii)(A) below to deliver payments to a
         Person other than such Person and to negotiate the terms of any
         mandatory sale under clause (iii)(B) below and to execute all
         instruments of Transfer and to do all other things necessary in
         connection with any such sale. The rights of each Person acquiring any
         Ownership Interest in a Residual Certificate are expressly subject to
         the following provisions:

                  (A) Each Person holding or acquiring any Ownership Interest in
         a Residual Certificate shall be a Permitted Transferee and shall
         promptly notify the Trustee of any change or impending change in its
         status as a Permitted Transferee.

                  (B) In connection with any proposed Transfer of any Ownership
         Interest in a Residual Certificate, the Trustee shall require delivery
         to it, and shall not register the Transfer of any Residual Certificate
         until its receipt of, an affidavit and agreement (a "Transfer Affidavit
         and Agreement," in the form attached hereto as Exhibit F-2) from the
         proposed Transferee, in form and substance satisfactory to the Trustee,
         representing and warranting, among other things, that such Transferee
         is a Permitted Transferee, that it is not acquiring its Ownership
         Interest in the Residual Certificate that is the subject of the
         proposed Transfer

                                      -109-

<PAGE>

         as a nominee, trustee or agent for any Person that is not a Permitted
         Transferee, that for so long as it retains its Ownership Interest in a
         Residual Certificate, it will endeavor to remain a Permitted
         Transferee, and that it has reviewed the provisions of this Section
         5.02(d) and agrees to be bound by them.

                  (C) Notwithstanding the delivery of a Transfer Affidavit and
         Agreement by a proposed Transferee under clause (B) above, if a
         Responsible Officer of the Trustee who is assigned to this transaction
         has actual knowledge that the proposed Transferee is not a Permitted
         Transferee, no Transfer of an Ownership Interest in a Residual
         Certificate to such proposed Transferee shall be effected.

                  (D) Each Person holding or acquiring any Ownership Interest in
         a Residual Certificate shall agree (x) to require a Transfer Affidavit
         and Agreement in the form attached hereto as Exhibit F-2 from any other
         Person to whom such Person attempts to transfer its Ownership Interest
         in a Residual Certificate and (y) not to transfer its Ownership
         Interest unless it provides a Transferor Affidavit (in the form
         attached hereto as Exhibit F-2) to the Trustee stating that, among
         other things, it has no actual knowledge that such other Person is not
         a Permitted Transferee.

                  (E) Each Person holding or acquiring an Ownership Interest in
         a Residual Certificate, by purchasing an Ownership Interest in such
         Certificate, agrees to give the Trustee written notice that it is a
         "pass-through interest holder" within the meaning of temporary Treasury
         regulation Section 1.67-3T(a)(2)(i)(A) immediately upon acquiring an
         Ownership Interest in a Residual Certificate, if it is, or is holding
         an Ownership Interest in a Residual Certificate on behalf of, a
         "pass-through interest holder."

                  (ii) The Trustee will register the Transfer of any Residual
         Certificate only if it shall have received the Transfer Affidavit and
         Agreement and all of such other documents as shall have been reasonably
         required by the Trustee as a condition to such registration. In
         addition, no Transfer of a Residual Certificate shall be made unless
         the Trustee shall have received a representation letter from the
         Transferee of such Certificate to the effect that such Transferee is a
         Permitted Transferee.

                  (iii)(A) If any purported Transferee shall become a Holder of
         a Residual Certificate in violation of the provisions of this Section
         5.02(d), then the last preceding Permitted Transferee shall be
         restored, to the extent permitted by law, to all rights as holder
         thereof retroactive to the date of registration of such Transfer of
         such Residual Certificate. The Trustee shall be under no liability to
         any Person for any registration of Transfer of a Residual Certificate
         that is in fact not permitted by this Section 5.02(d) or for making any
         payments due on such Certificate to the holder thereof or for taking
         any other action with respect to such holder under the provisions of
         this Agreement.

                  (B) If any purported Transferee shall become a holder of a
         Residual Certificate in violation of the restrictions in this Section
         5.02(d) and to the extent that the retroactive restoration of the
         rights of the holder of such Residual Certificate as described in
         clause (iii)(A) above shall be invalid, illegal or unenforceable, then
         the Trustee shall have the right,

                                      -110-

<PAGE>

         without notice to the holder or any prior holder of such Residual
         Certificate, to sell such Residual Certificate to a purchaser selected
         by the Trustee on such terms as the Trustee may choose. Such purported
         Transferee shall promptly endorse and deliver each Residual Certificate
         in accordance with the instructions of the Trustee. Such purchaser may
         be the Trustee itself or any Affiliate of the Trustee. The proceeds of
         such sale, net of the commissions (which may include commissions
         payable to the Trustee or its Affiliates), expenses and taxes due, if
         any, will be remitted by the Trustee to such purported Transferee. The
         terms and conditions of any sale under this clause (iii)(B) shall be
         determined in the sole discretion of the Trustee, and the Trustee shall
         not be liable to any Person having an Ownership Interest in a Residual
         Certificate as a result of its exercise of such discretion.

                  (iv) The Trustee shall make available to the Internal Revenue
         Service and those Persons specified by the REMIC Provisions all
         information necessary to compute any tax imposed (A) as a result of the
         Transfer of an Ownership Interest in a Residual Certificate to any
         Person who is a Disqualified Organization, including the information
         described in Treasury regulations sections 1.860D-1(b)(5) and
         1.860E-2(a)(5) with respect to the "excess inclusions" of such Residual
         Certificate and (B) as a result of any regulated investment company,
         real estate investment trust, common Trust, partnership, trust, estate
         or organization described in Section 1381 of the Code that holds an
         Ownership Interest in a Residual Certificate having as among its record
         holders at any time any Person which is a Disqualified Organization.
         Reasonable compensation for providing such information may be accepted
         by the Trustee.

                  (v) The provisions of this Section 5.02(d) set forth prior to
         this subsection (v) may be modified, added to or eliminated, provided
         that there shall have been delivered to the Trustee and the NIMS
         Insurer at the expense of the party seeking to modify, add to or
         eliminate any such provision the following:

                  (A) written notification from each Rating Agency to the effect
         that the modification, addition to or elimination of such provisions
         will not cause such Rating Agency to downgrade its then-current ratings
         of any Class of Certificates; and

                  (B) an Opinion of Counsel, in form and substance satisfactory
         to the Trustee and the NIMS Insurer, to the effect that such
         modification of, addition to or elimination of such provisions will not
         cause any Trust REMIC to cease to qualify as a REMIC and will not cause
         any Trust REMIC to be subject to an entity-level tax caused by the
         Transfer of any Residual Certificate to a Person that is not a
         Permitted Transferee or a Person other than the prospective transferee
         to be subject to a REMIC-tax caused by the Transfer of a Residual
         Certificate to a Person that is not a Permitted Transferee.

                  The Trustee shall forward to the NIMS Insurer a copy of the
items delivered to it pursuant to (A) and (B) above.

                  (e) Subject to the preceding subsections, upon surrender for
registration of transfer of any Certificate at any office or agency of the
Trustee maintained for such purpose pursuant to Section 8.11, the Trustee shall
execute, authenticate and deliver, in the name of the

                                      -111-

<PAGE>

designated Transferee or Transferees, one or more new Certificates of the same
Class of a like aggregate Percentage Interest.

                  (f) At the option of the Holder thereof, any Certificate may
be exchanged for other Certificates of the same Class with authorized
denominations and a like aggregate Percentage Interest, upon surrender of such
Certificate to be exchanged at any office or agency of the Trustee maintained
for such purpose pursuant to Section 8.11. Whenever any Certificates are so
surrendered for exchange, the Trustee shall execute, authenticate and deliver,
the Certificates which the Certificateholder making the exchange is entitled to
receive. Every Certificate presented or surrendered for transfer or exchange
shall (if so required by the Trustee) be duly endorsed by, or be accompanied by
a written instrument of transfer in the form satisfactory to the Trustee duly
executed by, the Holder thereof or his attorney duly authorized in writing. In
addition, (i) with respect to each Class R Certificate, the holder thereof may
exchange, in the manner described above, such Class R Certificate for two
separate certificates, each representing such holder's respective Percentage
Interest in the Class R-I Interest and the Class R-II Interest, respectively, in
each case that was evidenced by the Class R Certificate being exchanged and (ii)
with respect to each Class R-X Certificate, the holder thereof may exchange, in
the manner described above, such Class R-X Certificate for two separate
certificates, each representing such holder's respective Percentage Interest in
the Class R-III Interest and the Class R-IV Interest, respectively, in each case
that was evidenced by the Class R-X Certificate being exchanged.

                  (g) No service charge to the Certificateholders shall be made
for any transfer or exchange of Certificates, but the Trustee may require
payment of a sum sufficient to cover any tax or governmental charge that may be
imposed in connection with any transfer or exchange of Certificates.

                  (h) All Certificates surrendered for transfer and exchange
shall be canceled and destroyed by the Trustee in accordance with its customary
procedures.

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

                  If (i) any mutilated Certificate is surrendered to the
Trustee, or the Trustee receives evidence to its satisfaction of the
destruction, loss or theft of any Certificate, and (ii) there is delivered to
the Trustee and the NIMS Insurer such security or indemnity as may be required
by it to save it harmless, then, in the absence of actual knowledge by the
Trustee that such Certificate has been acquired by a bona fide purchaser or the
Trustee shall execute, authenticate and deliver, in exchange for or in lieu of
any such mutilated, destroyed, lost or stolen Certificate, a new Certificate of
the same Class and of like denomination and Percentage Interest. Upon the
issuance of any new Certificate under this Section, the Trustee may require the
payment of a sum sufficient to cover any tax or other governmental charge that
may be imposed in relation thereto and any other expenses (including the fees
and expenses of the Trustee) connected therewith. Any replacement Certificate
issued pursuant to this Section shall constitute complete and indefeasible
evidence of ownership in the applicable REMIC created hereunder, as if
originally issued, whether or not the lost, stolen or destroyed Certificate
shall be found at any time.

                  SECTION 5.04. Persons Deemed Owners.

                                      -112-

<PAGE>

                  The Depositor, the Servicer, the NIMS Insurer, the Trustee and
any agent of any of them may treat the Person in whose name any Certificate is
registered as the owner of such Certificate for the purpose of receiving
distributions pursuant to Section 4.01 and for all other purposes whatsoever,
and none of the Depositor, the Servicer, the NIMS Insurer, the Trustee or any
agent of any of them shall be affected by notice to the contrary.

                  SECTION 5.05. Certain Available Information.

                  On or prior to the date of the first sale of any Class CE
Certificate, Class P Certificate or Residual Certificate to an Independent third
party, the Depositor shall provide to the Trustee ten copies of any private
placement memorandum or other disclosure document used by the Depositor in
connection with the offer and sale of such Certificates. In addition, if any
such private placement memorandum or disclosure document is revised, amended or
supplemented at any time following the delivery thereof to the Trustee, the
Depositor promptly shall inform the Trustee of such event and shall deliver to
the Trustee ten copies of the private placement memorandum or disclosure
document, as revised, amended or supplemented. The Trustee shall maintain at its
Corporate Trust Office and shall make available free of charge during normal
business hours for review by any Holder of a Certificate or any Person
identified to the Trustee as a prospective transferee of a Certificate,
originals or copies of the following items: (i) in the case of a Holder or
prospective transferee of a Class CE Certificate, Class P Certificate or
Residual Certificate, the related private placement memorandum or other
disclosure document relating to such Class of Certificates, in the form most
recently provided to the Trustee; and (ii) in all cases, (A) this Agreement and
any amendments hereof entered into pursuant to Section 11.01, (B) all monthly
statements required to be delivered to Certificateholders of the relevant Class
pursuant to Section 4.02 since the Closing Date, and all other notices, reports,
statements and written communications delivered to the Certificateholders of the
relevant Class pursuant to this Agreement since the Closing Date, (C) all
certifications delivered by a Responsible Officer of the Trustee since the
Closing Date pursuant to Section 10.01(h), (D) any and all Officers'
Certificates delivered to the Trustee by the Servicer since the Closing Date to
evidence the Servicer's determination that any Advance or Servicing Advance was,
or if made, would be a Nonrecoverable Advance or Nonrecoverable Servicing
Advance, respectively, and (E) any and all Officers' Certificates delivered to
the Trustee by the Servicer since the Closing Date pursuant to Section 4.04(a).
Copies and mailing of any and all of the foregoing items will be available from
the Trustee upon request at the expense of the Person requesting the same.

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<PAGE>

                                   ARTICLE VI

                         THE DEPOSITOR AND THE SERVICER

                  SECTION 6.01. Liability of the Depositor and the Servicer.

                  The Depositor and the Servicer each shall be liable in
accordance herewith only to the extent of the obligations specifically imposed
by this Agreement upon them in their respective capacities as Depositor and
Servicer and undertaken hereunder by the Depositor and the Servicer herein.

                  SECTION 6.02. Merger or Consolidation of the Depositor or the
                                Servicer.

                  Subject to the following paragraph, the Depositor will keep in
full effect its existence, rights and franchises as a corporation under the laws
of the jurisdiction of its incorporation. Subject to the following paragraphs,
the Servicer will keep in full effect its existence, rights and franchises as a
corporation under the laws of the jurisdiction of its incorporation. The
Depositor and the Servicer each will obtain and preserve its qualification to do
business as a foreign corporation in each jurisdiction in which such
qualification is or shall be necessary to protect the validity and
enforceability of this Agreement, the Certificates or any of the Mortgage Loans
and to perform its respective duties under this Agreement.

                  The Depositor or the Servicer may be merged or consolidated
with or into any Person, or transfer all or substantially all of its assets to
any Person, in which case any Person resulting from any merger or consolidation
to which the Depositor or the Servicer shall be a party, or any Person
succeeding to the business of the Depositor or the Servicer, shall be the
successor of the Depositor or the Servicer, as the case may be, hereunder,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto, anything herein to the contrary notwithstanding;
provided, however, that the successor or surviving Person to the Servicer shall
be qualified to service mortgage loans on behalf of Fannie Mae or Freddie Mac;
and provided further that the Rating Agencies' ratings of the Class A
Certificates and the Mezzanine Certificates in effect immediately prior to such
merger or consolidation will not be qualified, reduced or withdrawn as a result
thereof (as evidenced by a letter to such effect from the Rating Agencies).

                  Notwithstanding the provisions of Section 6.04 herein to the
contrary, in the event that the Servicer determines that it will no longer
engage in the business of servicing mortgage loans, the Servicer may assign its
rights under this Agreement, provided that, (i) the Depositor in its sole
discretion and the NIMS Insurer have consented, (ii) the Rating Agencies'
ratings of the Offered Certificates and each class of notes issued pursuant to
the Indenture (without regard to any insurance policies) in effect immediately
prior to such action will not be qualified, reduced or withdrawn as a result
thereof (as evidenced by a letter to such effect from the Rating Agencies) and
(iii) the Servicer shall be liable for all Servicing Transfer Costs, provided
further, that the Servicer shall indemnify and hold the Trust Fund, the Trustee,
the Depositor, and sub-servicer, the successor servicer, the NIMS Insurer and
each Certificateholder harmless against any and all claims, losses, penalties,
fines, forfeitures, reasonable legal fees and related costs, judgments, and any
other costs, fees and expenses that the Trust Fund, the Trustee, the Depositor,
and sub-servicer, the successor

                                      -114-

<PAGE>

servicer, the NIMS Insurer and each Certificateholder may sustain in any way
related such assignment. No assignment by the Servicer shall become effective
until a successor servicer acceptable to the Depositor and the NIMS Insurer
shall have assumed the Servicer's responsibilities, duties, liabilities (other
than those liabilities arising prior to the appointment of such successor) and
obligations under this Agreement. Any such assignment shall not relieve the
Servicer of responsibility for any of the obligations specified herein except to
the extent that such responsibilities have been expressly assumed by the
successor servicer.

                  SECTION 6.03. Limitation on Liability of the Depositor, the
                                Servicer and Others.

                  (a) The Servicer (except the Trustee if it is required to
succeed the Servicer hereunder) indemnifies and holds the NIMS Insurer and each
Certificateholder harmless against any and all claims, losses, penalties, fines,
forfeitures, reasonable legal fees and related costs, judgments, and any other
costs, fees and expenses that the NIMS Insurer and any Certificateholder may
sustain in any way related to the failure of the Servicer to perform its duties
and service the Mortgage Loans in compliance with the terms of this Agreement.
The Servicer shall immediately notify the NIMS Insurer and each
Certificateholder if a claim is made that may result in such claims, losses,
penalties, fines, forfeitures, legal fees or related costs, judgments, or any
other costs, fees and expenses, and the Servicer shall assume (with the consent
of the Trustee) the defense of any such claim and pay all expenses in connection
therewith, including reasonable counsel fees, and promptly pay, discharge and
satisfy any judgment or decree which may be entered against the NIMS Insurer
and/or the Certificateholder in respect of such claim. The provisions of this
Section 6.03 shall survive the termination of this Agreement and the payment of
the outstanding Certificates.

                  (b) None of the Depositor, the NIMS Insurer, the Servicer or
any of the directors, officers, employees or agents of the Depositor or the
Servicer shall be under any liability to the Trust Fund or the
Certificateholders for any action taken or for refraining from the taking of any
action in good faith pursuant to this Agreement, or for errors in judgment;
provided, however, that this provision shall not protect the Depositor, the
Servicer or any such person against any breach of warranties, representations or
covenants made herein, or against any specific liability imposed on the Servicer
pursuant hereto, or against any liability which would otherwise be imposed by
reason of willful misfeasance, bad faith or gross negligence in the performance
of duties or by reason of reckless disregard of obligations and duties hereunder
or a breach of a representation or warranty hereunder or, in the case of the
Servicer, a breach of the Servicing Standard. The Depositor, the NIMS Insurer
and the Servicer and any director, officer, employee or agent of the Depositor,
the NIMS Insurer or the Servicer may rely in good faith on any document of any
kind which, PRIMA FACIE, is properly executed and submitted by any Person
respecting any matters arising hereunder. The Depositor, the NIMS Insurer, the
Servicer and any director, officer, employee or agent of the Depositor, the NIMS
Insurer or the Servicer shall be indemnified and held harmless by the Trust Fund
against any loss, liability or expense incurred in connection with any legal
action relating to this Agreement or the Certificates, other than any loss,
liability or expense relating to any specific Mortgage Loan or Mortgage Loans
(except as any such loss, liability or expense shall be otherwise reimbursable
pursuant to this Agreement) or any loss, liability or expense incurred by reason
of willful misfeasance, bad faith or gross negligence in the performance of
duties hereunder or by reason of reckless disregard of obligations and duties
hereunder. Neither the Depositor, the NIMS

                                      -115-

<PAGE>

Insurer nor the Servicer shall be under any obligation to appear in, prosecute
or defend any legal action unless such action is related to its respective
duties under this Agreement and, in its opinion, does not involve it in any
expense or liability; provided, however, that each of the Depositor, the NIMS
Insurer and the Servicer may in its discretion undertake any such action which
it may deem necessary or desirable with respect to this Agreement and the rights
and duties of the parties hereto and the interests of the Certificateholders
hereunder. In such event, unless the Depositor or the Servicer acts without the
consent of Holders of Certificates entitled to at least 51% of the Voting
Rights, the legal expenses and costs of such action and any liability resulting
therefrom (except any loss, liability or expense incurred by reason of willful
misfeasance, bad faith or gross negligence in the performance of duties
hereunder or by reason of reckless disregard of obligations and duties
hereunder) shall be expenses, costs and liabilities of the Trust Fund, and the
Depositor, the NIMS Insurer and the Servicer shall be entitled to be reimbursed
therefor from the Collection Account as and to the extent provided in Section
3.11, any such right of reimbursement being prior to the rights of the
Certificateholders to receive any amount in the Collection Account.

                  SECTION 6.04. Limitation on Resignation of the Servicer.

                  The Servicer shall not resign from the obligations and duties
hereby imposed on it except upon determination that its duties hereunder are no
longer permissible under applicable law. Any such determination pursuant to the
preceding sentence permitting the resignation of the Servicer shall be evidenced
by an Opinion of Counsel to such effect obtained at the expense of the Servicer
and delivered to the Trustee and the NIMS Insurer. No resignation of the
Servicer shall become effective until the Trustee or a successor servicer
acceptable to the NIMS Insurer shall have assumed the Servicer's
responsibilities, duties, liabilities (other than those liabilities arising
prior to the appointment of such successor) and obligations under this
Agreement. Any such resignation shall not relieve the Servicer of responsibility
for any of the obligations specified in Sections 7.01 and 7.02 as obligations
that survive the resignation or termination of the Servicer.

                  Except as expressly provided herein, the Servicer shall not
assign or transfer any of its rights, benefits or privileges hereunder to any
other Person, or delegate to or subcontract with, or authorize or appoint any
other Person to perform any of the duties, covenants or obligations to be
performed by the Servicer hereunder. The foregoing prohibition on assignment
shall not prohibit the Servicer from designating a Sub-Servicer as payee of any
indemnification amount payable to the Servicer hereunder; provided, however,
that as provided in Section 3.06 hereof, no Sub-Servicer shall be a third-party
beneficiary hereunder and the parties hereto shall not be required to recognize
any Sub-Servicer as an indemnitee under this Agreement. If, pursuant to any
provision hereof, the duties of the Servicer are transferred to a successor
servicer, the entire amount of the Servicing Fee and other compensation payable
to the Servicer pursuant hereto shall thereafter be payable to such successor
servicer.

                  SECTION 6.05. Rights of the Depositor in Respect of the
                                Servicer.

                  The Servicer shall afford (and any Sub-Servicing Agreement
shall provide that each Sub-Servicer shall afford) the Depositor, the NIMS
Insurer and the Trustee, upon five (5) Business Days prior notice, during normal
business hours, access to all records maintained by the Servicer (and any such
Sub-Servicer) in respect of the Servicer's rights and obligations hereunder and
access

                                      -116-

<PAGE>

to officers of the Servicer (and those of any such Sub-Servicer) responsible for
such obligations. Upon request, the Servicer shall furnish to the Depositor, the
NIMS Insurer and the Trustee its (and any such Sub-Servicer's) most recent
financial statements and such other information relating to the Servicer's
capacity to perform its obligations under this Agreement as it possesses (and
that any such Sub-Servicer possesses). To the extent such information is not
otherwise available to the public, the Depositor, the NIMS Insurer and the
Trustee shall not disseminate any information obtained pursuant to the preceding
two sentences without the Servicer's written consent, except as required
pursuant to this Agreement or to the extent that it is appropriate to do so (i)
in working with legal counsel, auditors, taxing authorities or other
governmental agencies or (ii) pursuant to any law, rule, regulation, order,
judgment, writ, injunction or decree of any court or governmental authority
having jurisdiction over the Depositor and the Trustee or the Trust Fund, and in
any case, the Depositor, the NIMS Insurer or the Trustee as the case may be,
shall use its best efforts to assure the confidentiality of any such
disseminated non-public information. The Depositor may, but is not obligated to,
enforce the obligations of the Servicer under this Agreement and may, but is not
obligated to, perform, or cause a designee to perform, any defaulted obligation
of the Servicer under this Agreement or exercise the rights of the Servicer
under this Agreement; provided that the Servicer shall not be relieved of any of
its obligations under this Agreement by virtue of such performance by the
Depositor or its designee. The Depositor shall not have any responsibility or
liability for any action or failure to act by the Servicer and is not obligated
to supervise the performance of the Servicer under this Agreement or otherwise.

                                      -117-

<PAGE>

                                   ARTICLE VII

                                     DEFAULT

                  SECTION 7.01. Servicer Events of Default.

         (a) "Servicer Event of Default," wherever used herein, means any one of
the following events:

                  (i) any failure by the Servicer to remit to the Trustee for
         distribution to the Certificateholders any payment (other than an
         Advance required to be made from its own funds on any Servicer
         Remittance Date pursuant to Section 4.03) required to be made under the
         terms of the Certificates and this Agreement which continues unremedied
         for a period of one Business Day after the date upon which written
         notice of such failure, requiring the same to be remedied, shall have
         been given to the Servicer by the Depositor or the Trustee (in which
         case notice shall be provided by telecopy), or to the Servicer, the
         Depositor and the Trustee by the NIMS Insurer or the Holders of
         Certificates entitled to at least 25% of the Voting Rights; or

                  (ii) any failure on the part of the Servicer duly to observe
         or perform in any material respect any other of the covenants or
         agreements on the part of the Servicer contained in this Agreement, or
         the breach by the Servicer of any representation and warranty contained
         in Section 2.05, which continues unremedied for a period of 30 days (or
         if such failure or breach cannot be remedied within 30 days, then such
         remedy shall have been commenced within 30 days and diligently pursued
         thereafter; provided, however, that in no event shall such failure or
         breach be allowed to exist for a period of greater than 90 days) after
         the earlier of (i) the date on which written notice of such failure,
         requiring the same to be remedied, shall have been given to the
         Servicer by the Depositor, the Trustee or to the Servicer, the
         Depositor and the Trustee by the NIMS Insurer or the Holders of
         Certificates entitled to at least 25% of the Voting Rights and (ii)
         actual knowledge of such failure by a Servicing Officer of the
         Servicer; or

                  (iii) a decree or order of a court or agency or supervisory
         authority having jurisdiction in the premises in an involuntary case
         under any present or future federal or state bankruptcy, insolvency or
         similar law or the appointment of a conservator or receiver or
         liquidator in any insolvency, readjustment of debt, marshalling of
         assets and liabilities or similar proceeding, or for the winding-up or
         liquidation of its affairs, shall have been entered against the
         Servicer and such decree or order shall have remained in force
         undischarged or unstayed for a period of 90 days; or

                  (iv) the Servicer shall consent to the appointment of a
         conservator or receiver or liquidator in any insolvency, readjustment
         of debt, marshalling of assets and liabilities or similar proceedings
         of or relating to it or of or relating to all or substantially all of
         its property; or

                                      -118-

<PAGE>

                  (v) the Servicer shall admit in writing its inability to pay
         its debts generally as they become due, file a petition to take
         advantage of any applicable insolvency or reorganization statute, make
         an assignment for the benefit of its creditors, or voluntarily suspend
         payment of its obligations; or

                  (vi) [reserved]; or

                  (vii) any failure of the Servicer to make any Advance on any
         Servicer Remittance Date required to be made from its own funds
         pursuant to Section 4.03 which continues unremedied until 5:00 p.m. New
         York time on the Distribution Date.

                  If a Servicer Event of Default described in clauses (i)
through (vi) of this Section shall occur, then, and in each and every such case,
so long as such Servicer Event of Default shall not have been remedied, the
Depositor or the Trustee may, and at the written direction of the Holders of
Certificates entitled to at least 51% of Voting Rights or the NIMS Insurer, the
Trustee shall, by notice in writing to the Servicer (and to the Depositor if
given by the Trustee or to the Trustee if given by the Depositor), terminate all
of the rights and obligations of the Servicer in its capacity as Servicer under
this Agreement, to the extent permitted by law, and in and to the Mortgage Loans
and the proceeds thereof. If a Servicer Event of Default described in clause
(vii) hereof shall occur and shall not have been remedied by 5:00 p.m. on the
related Distribution Date, the Trustee shall be obligated to make such Advance
and, then so long as such Servicer Event of Default shall not have been remedied
during the applicable time period set forth in clause (vii) above (including the
reimbursement to the Trustee by the Master Servicer, with interest thereon at
the Prime Rate, for any Advance made), the Trustee shall, by notice in writing
to the Servicer, the Depositor and the NIMS Insurer, terminate all of the rights
and obligations of the Servicer in its capacity as Servicer under this Agreement
and in and to the Mortgage Loans and the proceeds thereof. On or after the
receipt by the Servicer of such written notice, all authority and power of the
Servicer under this Agreement, whether with respect to the Certificates (other
than as a Holder of any Certificate) or the Mortgage Loans or otherwise, shall
pass to and be vested in the Trustee pursuant to and under this Section, and,
without limitation, the Trustee is hereby authorized and empowered, as
attorney-in-fact or otherwise, to execute and deliver, on behalf of and at the
expense of the Servicer, any and all documents and other instruments and to do
or accomplish all other acts or things necessary or appropriate to effect the
purposes of such notice of termination, whether to complete the transfer and
endorsement or assignment of the Mortgage Loans and related documents, or
otherwise. The Servicer agrees to promptly (and in any event no later than ten
Business Days subsequent to such notice) provide the Trustee with all documents
and records requested by it to enable it to assume the Servicer's functions
under this Agreement, and to cooperate with the Trustee in effecting the
termination of the Servicer's responsibilities and rights under this Agreement,
including, without limitation, the transfer within one Business Day to the
Trustee for administration by it of all cash amounts which at the time shall be
or should have been credited by the Servicer to the Collection Account held by
or on behalf of the Servicer, the Distribution Account or any REO Account or
Escrow Account held by or on behalf of the Servicer or thereafter be received
with respect to the Mortgage Loans or any REO Property serviced by the Servicer
(provided, however, that the Servicer shall continue to be entitled to receive
all amounts accrued or owing to it under this Agreement on or prior to the date
of such termination, whether in respect of Advances or otherwise, and shall
continue to be entitled to the benefits of Section 6.03, notwithstanding any
such termination, with respect to events occurring prior to such

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termination). For purposes of this Section 7.01, the Trustee shall not be deemed
to have knowledge of a Servicer Event of Default unless a Responsible Officer of
the Trustee assigned to and working in the Trustee's Corporate Trust Office has
actual knowledge thereof or unless written notice of any event which is in fact
such a Servicer Event of Default is received by the Trustee and such notice
references the Certificates, the Trust Fund or this Agreement.

                  SECTION 7.02. Trustee to Act; Appointment of Successor.

                  (a)(1) From the time the Servicer (and the Trustee, if notice
is sent by the Holders of Certificates entitled to at least 51% of Voting Rights
or the NIMS Insurer) receives a notice of termination, the Trustee (or such
other successor Servicer as is acceptable to the NIMS Insurer) shall be the
successor in all respects to the Servicer in its capacity as Servicer under this
Agreement and the transactions set forth or provided for herein, and all the
responsibilities, duties and liabilities relating thereto and arising thereafter
shall be assumed by the Trustee (except for any representations or warranties of
the Servicer under this Agreement, the responsibilities, duties and liabilities
contained in Section 2.05 (other than with respect to Section 2.05(x)) and the
obligation to deposit amounts in respect of losses pursuant to Section 3.12) by
the terms and provisions hereof; provided, however, the Trustee shall
immediately assume the Servicer's obligations to make Advances pursuant to
Section 4.03; provided, further, however, that if the Trustee is prohibited by
law or regulation from obligating itself to make advances regarding delinquent
mortgage loans, then the Trustee shall not be obligated to make Advances
pursuant to Section 4.03; and provided further, that any failure to perform such
duties or responsibilities caused by the Servicer's failure to provide
information required by Section 7.01 shall not be considered a default by the
Trustee as successor to the Servicer hereunder. It is understood and
acknowledged by the parties hereto that there will be a period of transition
(not to exceed 90 days) before the transition of servicing obligations is fully
effective. As compensation therefor, the Trustee shall be entitled to the
Servicing Fee and all funds relating to the Mortgage Loans to which the Servicer
would have been entitled if it had continued to act hereunder. Notwithstanding
the above and subject to Section 7.02(a)(2) below, the Trustee if it shall be
unwilling to so act, or shall, if it is unable to so act or if it is prohibited
by law from making advances regarding delinquent mortgage loans or if the
Holders of Certificates entitled to at least 51% of the Voting Rights or the
NIMS Insurer so request in writing to the Trustee, promptly appoint or petition
a court of competent jurisdiction to appoint, an established mortgage loan
servicing institution acceptable to each Rating Agency and the NIMS Insurer and
having a net worth of not less than $15,000,000, as the successor to the
Servicer under this Agreement in the assumption of all or any part of the
responsibilities, duties or liabilities of the Servicer under this Agreement.

                  Pending appointment of a successor to the Servicer hereunder,
unless the Trustee is prohibited by law from so acting, the Trustee shall act in
such capacity as hereinabove provided. In connection with such appointment and
assumption, the successor shall be entitled to receive compensation out of
payments on Mortgage Loans in an amount equal to the compensation which the
Servicer would otherwise have received pursuant to Section 3.18 (or such other
compensation as the Trustee and such successor shall agree, not to exceed the
Servicing Fee). The appointment of a successor Servicer shall not affect any
liability of the predecessor Servicer which may have arisen under this Agreement
prior to its termination as Servicer to pay any deductible under an insurance
policy pursuant to Section 3.14 or to indemnify the NIMS Insurer pursuant to
Section 6.03, nor shall any successor Servicer be liable for any acts or
omissions of the predecessor Servicer or

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<PAGE>

for any breach by such Servicer of any of its representations or warranties
contained herein or in any related document or agreement. The Trustee and such
successor shall take such action, consistent with this Agreement, as shall be
necessary to effectuate any such succession. All reasonable Servicing Transfer
Costs shall be paid by the predecessor Servicer upon presentation of reasonable
documentation of such costs, and if such predecessor Servicer defaults in its
obligation to pay such costs, such costs shall be paid by the successor Servicer
or the Trustee (in which case the successor Servicer or the Trustee, as
applicable, shall be entitled to reimbursement therefor from the assets of the
Trust Fund pursuant to Section 3.11(b)).

                  (2) No appointment of a successor to the Servicer under this
Agreement shall be effective until the assumption by the successor of all of the
Servicer's responsibilities, duties and liabilities hereunder. In connection
with such appointment and assumption described herein, the Trustee may make such
arrangements for the compensation of such successor out of payments on Mortgage
Loans as it and such successor shall agree; provided, however, that no such
compensation shall be in excess of that permitted the Servicer as such
hereunder. The Depositor, the Trustee and such successor shall take such action,
consistent with this Agreement, as shall be necessary to effectuate any such
succession. Pending appointment of a successor to the Servicer under this
Agreement or the Trustee shall act in such capacity as hereinabove provided.

                  Any successor to the Servicer, including the Trustee, shall
during the term of its service as servicer continue to service and administer
the Mortgage Loans for the benefit of Certificateholders, and maintain in force
a policy or policies of insurance covering errors and omissions in the
performance of its obligations as Servicer hereunder and a Fidelity Bond in
respect of its officers, employees and agents to the same extent as the Servicer
is so required pursuant to Section 3.14.

                  (b) In connection with the termination or resignation of the
Servicer hereunder, either (i) the successor servicer, including the Trustee if
the Trustee is acting as successor Servicer, shall represent and warrant that it
is a member of MERS in good standing and shall agree to comply in all material
respects with the rules and procedures of MERS in connection with the servicing
of the Mortgage Loans that are registered with MERS, in which case the
predecessor Servicer shall cooperate with the successor Servicer in causing MERS
to revise its records to reflect the transfer of servicing to the successor
Servicer as necessary under MERS' rules and regulations, or (ii) the predecessor
Servicer shall cooperate with the successor Servicer in causing MERS to execute
and deliver an assignment of Mortgage in recordable form to transfer the
Mortgage from MERS to the Trustee and to execute and deliver such other notices,
documents and other instruments as may be necessary or desirable to effect a
transfer of such Mortgage Loan or servicing of such Mortgage Loan on the MERS(R)
System to the successor Servicer. The predecessor Servicer shall file or cause
to be filed any such assignment in the appropriate recording office. The
predecessor Servicer shall bear any and all fees of MERS, costs of preparing any
assignments of Mortgage, and fees and costs of filing any assignments of
Mortgage that may be required under this Section 7.02(b).

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                  SECTION 7.03. Notification to Certificateholders.

                  (a) Upon any termination of the Servicer pursuant to Section
7.01 above or any appointment of a successor to the Servicer pursuant to Section
7.02 above, the Trustee shall give prompt written notice thereof to
Certificateholders and the NIMS Insurer at their respective addresses appearing
in the Certificate Register.

                  (b) Not later than the later of 60 days after the occurrence
of any event, which constitutes or which, with notice or lapse of time or both,
would constitute a Servicer Event of Default or five days after a Responsible
Officer of the Trustee becomes aware of the occurrence of such an event, the
Trustee shall transmit by mail to the NIMS Insurer and to all Holders of
Certificates notice of each such occurrence, unless such default or Servicer
Event of Default shall have been cured or waived.

                  SECTION 7.04. Waiver of Servicer Events of Default.

                  The Holders representing at least 66% of the Voting Rights
(with the consent of the NIMS Insurer) evidenced by all Classes of Certificates
affected by any default or Servicer Event of Default hereunder may waive such
default or Servicer Event of Default; provided, however, that a default or
Servicer Event of Default under clause (i) or (vii) of Section 7.01 may be
waived only by all of the Holders of the Regular Certificates (with the consent
of the NIMS Insurer). Upon any such waiver of a default or Servicer Event of
Default, such default or Servicer Event of Default shall cease to exist and
shall be deemed to have been remedied for every purpose hereunder. No such
waiver shall extend to any subsequent or other default or Servicer Event of
Default or impair any right consequent thereon except to the extent expressly so
waived. Notice of any such waiver shall be given by the Trustee to the Rating
Agencies and the NIMS Insurer.

                  SECTION 7.05. Survivability of Servicer Liabilities.

                  Notwithstanding anything herein to the contrary, upon
termination of the Servicer hereunder, any liabilities of the Servicer which
accrued prior to such termination shall survive such termination.

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<PAGE>

                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

                  SECTION 8.01. Duties of Trustee

                  The Trustee prior to the occurrence of a Servicer Event of
Default and after the curing of all Servicer Events of Default which may have
occurred, undertakes to perform such duties and only such duties as are
specifically set forth in this Agreement. During a Servicer Event of Default,
the Trustee shall exercise such of the rights and powers vested in it by this
Agreement, and use the same degree of care and skill in their exercise as a
prudent person would exercise or use under the circumstances in the conduct of
such person's own affairs. Any permissive right of the Trustee enumerated in
this Agreement shall not be construed as a duty.

                  The Trustee upon receipt of all resolutions, certificates,
statements, opinions, reports, documents, orders or other instruments furnished
to it, which are specifically required to be furnished pursuant to any provision
of this Agreement, shall examine them to determine whether they conform to the
requirements of this Agreement. If any such instrument is found not to conform
to the requirements of this Agreement in a material manner, it shall take such
action as it deems appropriate to have the instrument corrected, and if the
instrument is not corrected to its satisfaction, it will provide notice thereof
to the Certificateholders and the NIMS Insurer.

                  No provision of this Agreement shall be construed to relieve
the Trustee from liability for its own negligent action, its own negligent
failure to act or its own misconduct; provided, however, that:

                  (i) Prior to the occurrence of a Servicer Event of Default,
         and after the curing of all such Servicer Events of Default which may
         have occurred, the duties and obligations of the Trustee shall be
         determined solely by the express provisions of this Agreement, the
         Trustee shall be liable except for the performance of such duties and
         obligations as are specifically set forth in this Agreement, no implied
         covenants or obligations shall be read into this Agreement against the
         Trustee, and in the absence of bad faith on the part of the Trustee,
         the Trustee may conclusively rely, as to the truth of the statements
         and the correctness of the opinions expressed therein, upon any
         certificates or opinions furnished to the Trustee that conform to the
         requirements of this Agreement;

                  (ii) The Trustee shall not be personally liable for an error
         of judgment made in good faith by a Responsible Officer or Responsible
         Officers of it unless it shall be proved that it was negligent in
         ascertaining the pertinent facts; and

                  (iii) The Trustee shall not be personally liable with respect
         to any action taken, suffered or omitted to be taken by it in good
         faith in accordance with the direction of the NIMS Insurer or the
         Holders of Certificates entitled to at least 25% of the Voting Rights
         relating to the time, method and place of conducting any proceeding for
         any remedy available to it or exercising any trust or power conferred
         upon it under this Agreement.

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<PAGE>

                  SECTION 8.02. Certain Matters Affecting the Trustee

                  (a) Except as otherwise provided in Section 8.01:

                  (i) The Trustee may request and rely upon and shall be
         protected in acting or refraining from acting upon any resolution,
         Officers'Certificate, certificate of auditors or any other certificate,
         statement, instrument, opinion, report, notice, request, consent,
         order, appraisal, bond or other paper or document reasonably believed
         by it to be genuine and to have been signed or presented by the proper
         party or parties;

                  (ii) The Trustee may consult with counsel and any Opinion of
         Counsel shall be full and complete authorization and protection in
         respect of any action taken or suffered or omitted by it hereunder in
         good faith and in accordance with such Opinion of Counsel;

                  (iii) The Trustee shall not be under any obligation to
         exercise any of the trusts or powers vested in it by this Agreement or
         to institute, conduct or defend any litigation hereunder or in relation
         hereto at the request, order or direction of any of the
         Certificateholders or the NIMS Insurer, pursuant to the provisions of
         this Agreement, unless such Certificateholders or the NIMS Insurer, as
         applicable, shall have offered to the Trustee reasonable security or
         indemnity against the costs, expenses and liabilities which may be
         incurred therein or thereby; nothing contained herein shall, however,
         relieve the Trustee of the obligation, upon the occurrence of a
         Servicer Event of Default (which has not been cured or waived), to
         exercise such of the rights and powers vested in it by this Agreement,
         and to use the same degree of care and skill in their exercise as a
         prudent person would exercise or use under the circumstances in the
         conduct of such person's own affairs;

                  (iv) The Trustee shall not be personally liable for any action
         taken, suffered or omitted by it in good faith and believed by it to be
         authorized or within the discretion or rights or powers conferred upon
         it by this Agreement;

                  (v) Prior to the occurrence of a Servicer Event of Default
         hereunder and after the curing of all Servicer Events of Default which
         may have occurred, the Trustee shall not be bound to make any
         investigation into the facts or matters stated in any resolution,
         certificate, statement, instrument, opinion, report, notice, request,
         consent, order, approval, bond or other paper or document, unless
         requested in writing to do so by the NIMS Insurer or the Holders of
         Certificates entitled to at least 25% of the Voting Rights; provided,
         however, that if the payment within a reasonable time to the Trustee,
         of the costs, expenses or liabilities likely to be incurred by it in
         the making of such investigation is, in the opinion of the Trustee, not
         reasonably assured to the Trustee, by such Certificateholders, the
         Trustee may require reasonable indemnity against such expense, or
         liability from such Certificateholders or the NIMS Insurer, as
         applicable, as a condition to taking any such action;

                  (vi) The Trustee may execute any of the trusts or powers
         hereunder or perform any duties hereunder either directly or by or
         through agents or attorneys; provided, that the Trustee shall not be
         responsible for any negligence or willful misconduct on the part of the
         Custodian or any such agents or attorneys appointed by it with due
         care; and

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<PAGE>

                  (vii) The Trustee shall not be personally liable for any loss
         resulting from the investment of funds held in the Collection Account
         at the direction of the Servicer pursuant to Section 3.12.

                  (b) All rights of action under this Agreement or under any of
         the Certificates, enforceable by the Trustee, may be enforced by it
         without the possession of any of the Certificates, or the production
         thereof at the trial or other proceeding relating thereto, and any such
         suit, action or proceeding instituted by the Trustee shall be brought
         in its name for the benefit of all the Holders of such Certificates,
         subject to the provisions of this Agreement.

                  (c) [Reserved].

                  SECTION 8.03. Trustee not Liable for Certificates or Mortgage
                                Loans.

                  The recitals contained herein and in the Certificates (other
than the signature of the Trustee, the authentication of the Trustee on the
Certificates, the acknowledgments of the Trustee contained in Article II and the
representations and warranties of the Trustee in Section 8.12) shall be taken as
the statements of the Depositor and the Trustee shall not assume any
responsibility for their correctness. The Trustee shall not make any
representations or warranties as to the validity or sufficiency of this
Agreement (other than as specifically set forth in Section 8.12) or of the
Certificates (other than the signature of the Trustee, and authentication of the
Trustee on the Certificates) or of any Mortgage Loan or related document or of
MERS or the MERS(R) System. The Trustee shall not be accountable for the use or
application by the Depositor of any of the Certificates or of the proceeds of
such Certificates, or for the use or application of any funds paid to the
Depositor or the Servicer in respect of the Mortgage Loans or deposited in or
withdrawn from the Collection Account by the Servicer, other than any funds held
by or on behalf of the Trustee in accordance with Section 3.10.

                  SECTION 8.04. Trustee May Own Certificates.

                  The Trustee in its individual capacity or any other capacity
may become the owner or pledgee of Certificates with the same rights it would
have if it were not the Trustee.

                  SECTION 8.05. Trustee's Fees and Expenses.

                  The Trustee shall be entitled to withdraw from the
Distribution Account, pursuant to Section 3.11(b), on each Distribution Date and
pay to itself the Trustee Fee. The Trustee and any director, officer, employee
or agent of the Trustee, shall be indemnified by the Trust Fund and held
harmless against any loss, liability or expense (not including expenses,
disbursements and advances incurred or made by the Trustee including the
compensation and the expenses and disbursements of its agents and counsel, in
the ordinary course of the Trustee's performance in accordance with the
provisions of this Agreement) incurred by the Trustee arising out of or in
connection with the acceptance or administration of its obligations and duties
under this Agreement up to a limit of $600,000 per calender year, other than any
loss, liability or expense (i) resulting from any breach of the Servicer's
obligations in connection with this Agreement, (ii) that constitutes a specific
liability of the Trustee pursuant to Section 10.01(g) or (iii) any loss,
liability or expense incurred by reason

                                      -125-

<PAGE>

of willful misfeasance, bad faith or negligence in the performance of duties
hereunder or by reason of reckless disregard of obligations and duties hereunder
as a result of a breach of the Trustee's obligations under Article X hereof. It
is understood by the parties hereto that a "claim" as used in the preceding
sentence includes any claim for indemnification made by the Custodian under
Section 11 of the Custodial Agreement. The Servicer agrees to indemnify the
Trustee, from, and hold it harmless against, any loss, liability or expense
arising in respect of any breach by the Servicer of its obligations in
connection with this Agreement. Such indemnity shall survive the termination or
discharge of this Agreement and the resignation or removal of the Trustee. Any
payment hereunder made by the Servicer to the Trustee shall be from the
Servicer's own funds, without reimbursement from REMIC I therefor.
Notwithstanding anything herein to the contrary, the Trustee shall be reimbursed
from the Trust Fund for all Servicing Transfer Costs without regard to the
annual limitation.

                  SECTION 8.06. Eligibility Requirements for Trustee

                  The Trustee hereunder shall at all times be a corporation or
an association (other than the Depositor, the Originator, the Seller, the
Servicer or any Affiliate of the foregoing) organized and doing business under
the laws of any state or the United States of America, authorized under such
laws to exercise corporate trust powers, having a combined capital and surplus
of at least $50,000,000 (or a member of a bank holding company whose capital and
surplus is at least $50,000,000) and subject to supervision or examination by
federal or state authority. If such corporation or association publishes reports
of conditions at least annually, pursuant to law or to the requirements of the
aforesaid supervising or examining authority, then for the purposes of this
Section the combined capital and surplus of such corporation or association
shall be deemed to be its combined capital and surplus as set forth in its most
recent report of conditions so published. In case at any time the Trustee shall
cease to be eligible in accordance with the provisions of this Section, the
Trustee shall resign immediately in the manner and with the effect specified in
Section 8.07.

                  SECTION 8.07. Resignation and Removal of the Trustee

                  The Trustee may at any time resign and be discharged from the
trust hereby created by giving written notice thereof to the Depositor, the NIMS
Insurer, the Servicer and to the Certificateholders. Upon receiving such notice
of resignation, the Depositor shall promptly appoint a successor trustee
acceptable to the NIMS Insurer by written instrument, in duplicate, which
instrument shall be delivered to the resigning Trustee and to the successor
trustee. A copy of such instrument shall be delivered to the Certificateholders,
the Trustee and the Servicer by the Depositor. If no successor trustee shall
have been so appointed and have accepted appointment within 30 days after the
giving of such notice of resignation, the resigning Trustee may petition any
court of competent jurisdiction for the appointment of a successor trustee.

                  If at any time the Trustee shall cease to be eligible in
accordance with the provisions of Section 8.06 and shall fail to resign after
written request therefor by the Depositor or the NIMS Insurer, or if at any time
the Trustee shall become incapable of acting, or shall be adjudged bankrupt or
insolvent, or a receiver of the Trustee or of its property shall be appointed,
or any public officer shall take charge or control of the Trustee or of its
property or affairs for the purpose of

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<PAGE>

rehabilitation, conservation or liquidation, then the Depositor or the NIMS
Insurer may remove the and appoint a successor trustee acceptable to the NIMS
Insurer by written instrument, in duplicate, which instrument shall be delivered
to the Trustee so removed and to the successor trustee. A copy of such
instrument shall be delivered to the Certificateholders, the Trustee and the
Servicer by the Depositor.

                  The Holders of Certificates entitled to at least 51% of the
Voting Rights (or the NIMS Insurer upon failure of the Trustee to perform its
obligations hereunder) may at any time remove the Trustee and appoint a
successor trustee acceptable to the NIMS Insurer by written instrument or
instruments, in triplicate, signed by such Holders or their attorneys-in-fact
duly authorized, one complete set of which instruments shall be delivered to the
Depositor, one complete set to the Trustee so removed and one complete set to
the successor so appointed. A copy of such instrument shall be delivered to the
Certificateholders and the Servicer by the Depositor.

                  Any resignation or removal of the Trustee and appointment of a
successor trustee, pursuant to any of the provisions of this Section shall not
become effective until acceptance of appointment by the successor trustee as
provided in Section 8.08. Notwithstanding the foregoing, in the event the
Trustee is unable to continue to perform its obligations pursuant to the terms
of this Agreement prior to the appointment of a successor, the Trustee shall be
obligated to perform such obligations until a new trustee is appointed. Such
performance shall be without prejudice to any claim by a party hereto or
beneficiary hereof resulting from the Trustee's breach of its obligations
hereunder.

                  SECTION 8.08. Successor Trustee

                  Any successor trustee appointed as provided in Section 8.07
shall execute, acknowledge and deliver to the Depositor, the NIMS Insurer and
its predecessor trustee an instrument accepting such appointment hereunder, and
thereupon the resignation or removal of the predecessor trustee shall become
effective and such successor trustee, without any further act, deed or
conveyance, shall become fully vested with all the rights, powers, duties and
obligations of its predecessor hereunder, with the like effect as if originally
named as trustee herein. The predecessor trustee shall deliver to the successor
trustee all Mortgage Files and related documents and statements to the extent
held by it hereunder, as well as all moneys, held by it hereunder (other than
any Mortgage Files at the time held by the Custodian, which Custodian shall
become the agent of any successor trustee hereunder), and the Depositor and the
predecessor trustee shall execute and deliver such instruments and do such other
things as may reasonably be required for more fully and certainly vesting and
confirming in the successor trustee all such rights, powers, duties and
obligations.

                  No successor trustee shall accept appointment as provided in
this Section unless at the time of such acceptance such successor trustee shall
be eligible under the provisions of Section 8.06 and the appointment of such
successor trustee shall not result in a downgrading of any Class of Certificates
by any Rating Agency, as evidenced by a letter from each Rating Agency.

                  Upon acceptance of appointment by a successor trustee, as
provided in this Section, the Depositor shall mail notice of the succession of
such trustee hereunder to all Holders of Certificates at their addresses as
shown in the Certificate Register. If the Depositor fails to mail such

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<PAGE>

notice within 10 days after acceptance of appointment by the successor trustee,
the successor trustee shall cause such notice to be mailed at the expense of the
Depositor.

                  SECTION 8.09. Merger or Consolidation of Trustee.

                  Any corporation or association into which either the Trustee
may be merged or converted or with which it may be consolidated or any
corporation or association resulting from any merger, conversion or
consolidation to which the Trustee shall be a party, or any corporation or
association succeeding to the business of the Trustee shall be the successor of
the Trustee hereunder, provided such corporation or association shall be
eligible under the provisions of Section 8.06, without the execution or filing
of any paper or any further act on the part of any of the parties hereto,
anything herein to the contrary notwithstanding.

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

                  Notwithstanding any other provisions hereof, at any time, for
the purpose of meeting any legal requirements of any jurisdiction in which any
part of REMIC I or property securing the same may at the time be located, the
Trustee shall have the power and shall execute and deliver all instruments to
appoint one or more Persons approved by the Trustee and the NIMS Insurer to act
as co-trustee or co-trustees, jointly with the Trustee, or separate trustee or
separate trustees, of all or any part of REMIC I, and to vest in such Person or
Persons, in such capacity, such title to REMIC I, or any part thereof, and,
subject to the other provisions of this Section 8.10, such powers, duties,
obligations, rights and trusts as the Trustee may consider necessary or
desirable. Any such co-trustee or separate trustee shall be subject to the
written approval of the NIMS Insurer. If the NIMS Insurer shall not have joined
in such appointment within 15 days after the receipt by it of a request to do
so, the Trustee alone shall have the power to make such appointment. No
co-trustee or separate trustee hereunder shall be required to meet the terms of
eligibility as a successor trustee under Section 8.06 hereunder and no notice to
Holders of Certificates of the appointment of co-trustee(s) or separate
trustee(s) shall be required under Section 8.08 hereof.

                  In the case of any appointment of a co-trustee or separate
trustee pursuant to this Section 8.10 all rights, powers, duties and obligations
conferred or imposed upon the Trustee shall be conferred or imposed upon and
exercised or performed by the Trustee and such separate trustee or co-trustee
jointly, except to the extent that under any law of any jurisdiction in which
any particular act or acts are to be performed by the Trustee (whether as
Trustee hereunder or as successor to a defaulting Servicer hereunder), the
Trustee shall be incompetent or unqualified to perform such act or acts, in
which event such rights, powers, duties and obligations (including the holding
of title to REMIC I or any portion thereof in any such jurisdiction) shall be
exercised and performed by such separate trustee or co-trustee at the direction
of the Trustee.

                  Any notice, request or other writing given to the Trustee
shall be deemed to have been given to each of the then separate trustees and
co-trustees, as effectively as if given to each of them. Every instrument
appointing any separate trustee or co-trustee shall refer to this Agreement and
the conditions of this Article VIII. Each separate trustee and co-trustee, upon
its acceptance of the trust conferred, shall be vested with the estates or
property specified in its instrument of appointment, either jointly with the
Trustee, or separately, as may be provided therein, subject to all the
provisions

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<PAGE>

of this Agreement, specifically including every provision of this Agreement
relating to the conduct of, affecting the liability of, or affording protection
to, the Trustee. Every such instrument shall be filed with the Trustee and a
copy thereof given to the NIMS Insurer.

                  Any separate trustee or co-trustee may, at any time,
constitute the Trustee, its agent or attorney-in-fact, with full power and
authority, to the extent not prohibited by law, to do any lawful act under or in
respect of this Agreement on its behalf and in its name. If any separate trustee
or co-trustee shall die, become incapable of acting, resign or be removed, all
of its estates, properties, rights, remedies and trusts shall vest in and be
exercised by the Trustee, to the extent permitted by law, without the
appointment of a new or successor trustee or co-trustee.

                  SECTION 8.11. Appointment of Office or Agency; Appointment of
                                Custodian.

                  The Trustee will appoint an office or agency in the City of
St. Paul, Minnesota where the Certificates may be surrendered for registration
of transfer or exchange, and presented for final distribution, and where notices
and demands to or upon the Trustee in respect of the Certificates and this
Agreement may be served.

                  The Trustee may, with the consent of the Depositor, the
Servicer and the NIMS Insurer, appoint the Custodian to hold all or a portion of
the Mortgage Files as agent for the Trustee, by entering into the Custodial
Agreement. The appointment of the Custodian may at any time be terminated and a
substitute Custodian appointed therefor upon the reasonable request of the
Servicer or the NIMS Insurer to the Trustee, the consent to which shall not be
unreasonably withheld. The Trustee initially appoints Wells Fargo Bank
Minnesota, National Association as Custodian, and the Depositor and the Servicer
each consent to such appointment. Subject to Article VIII hereof, the Trustee
agrees to comply with the terms of the Custodial Agreement and to enforce the
terms and provisions thereof against the Custodian for the benefit of the
Certificateholders having an interest in any Mortgage File held by the
Custodian. The Custodian shall be a depository institution or trust company
subject to supervision by federal or state authority, shall have combined
capital and surplus of at least $10,000,000 and shall be qualified to do
business in the jurisdiction in which it holds any Mortgage File. Subject to
Section 8.02(a), in no event shall the appointment of the Custodian pursuant to
the Custodial Agreement diminish the obligations of the Trustee hereunder.

                  SECTION 8.12. Representations and Warranties.

                  The Trustee hereby represents and warrants to the Servicer and
the Depositor, as of the Closing Date, that:

                  (i) It is a national banking association duly organized,
         validly existing and in good standing under the laws of the United
         States of America.

                  (ii) The execution and delivery of this Agreement by it, and
         the performance and compliance with the terms of this Agreement by it,
         will not violate its articles of association or bylaws or constitute a
         default (or an event which, with notice or lapse of time, or both,

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         would constitute a default) under, or result in the breach of, any
         material agreement or other instrument to which it is a party or which
         is applicable to it or any of its assets.

                  (iii) It has the full power and authority to enter into and
         consummate all transactions contemplated by this Agreement, has duly
         authorized the execution, delivery and performance of this Agreement,
         and has duly executed and delivered this Agreement.

                  (iv) This Agreement, assuming due authorization, execution and
         delivery by the other parties hereto, constitutes a valid, legal and
         binding obligation of it, enforceable against it in accordance with the
         terms hereof, subject to (A) applicable bankruptcy, insolvency,
         receivership, reorganization, moratorium and other laws affecting the
         enforcement of creditors'rights generally, and (B) general principles
         of equity, regardless of whether such enforcement is considered in a
         proceeding in equity or at law.

                  (v) It is not in violation of, and its execution and delivery
         of this Agreement and its performance and compliance with the terms of
         this Agreement will not constitute a violation of, any law, any order
         or decree of any court or arbiter, or any order, regulation or demand
         of any federal, state or local governmental or regulatory authority,
         which violation, in its good faith and reasonable judgment, is likely
         to affect materially and adversely either the ability of it to perform
         its obligations under this Agreement or its financial condition.

                  (vi) No litigation is pending or, to the best of its
         knowledge, threatened against it, which would prohibit it from entering
         into this Agreement or, in its good faith reasonable judgment, is
         likely to materially and adversely affect either the ability of it to
         perform its obligations under this Agreement or its financial
         condition.

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                                   ARTICLE IX

                                   TERMINATION

                  SECTION 9.01. Termination Upon Repurchase or Liquidation of
                                All Mortgage Loans.

                  (a) Subject to Section 9.02, the respective obligations and
responsibilities under this Agreement of the Depositor, the Servicer and the
Trustee (other than the obligations of the Servicer to the Trustee pursuant to
Section 8.05 and of the Servicer to make remittances to the Trustee and the
Trustee to make payments in respect of the REMIC I Regular Interests and the
Classes of Certificates as hereinafter set forth) shall terminate upon payment
to the Certificateholders and the deposit of all amounts held by or on behalf of
the Trustee and required hereunder to be so paid or deposited on the
Distribution Date coinciding with or following the earlier to occur of (i) the
purchase by the Terminator (as defined below) of all Mortgage Loans and each REO
Property remaining in REMIC I and (ii) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan or REO Property
remaining in REMIC I; provided, however, that in no event shall the trust
created hereby continue beyond the expiration of 21 years from the death of the
last survivor of the descendants of Joseph P. Kennedy, the late ambassador of
the United States to the Court of St. James, living on the date hereof. Subject
to Section 3.10 hereof, the purchase by the Terminator of all Mortgage Loans and
each REO Property remaining in REMIC I shall be at a price (the "Termination
Price") equal to the greater of (i) the Stated Principal Balance of the Mortgage
Loans and the appraised value of any REO Properties, such appraisal to be
conducted by an Independent appraiser mutually agreed upon by the Terminator and
the Trustee in their reasonable discretion and (ii) the fair market value of all
of the assets of REMIC I (as determined by the Terminator and the Trustee, as of
the close of business on the third Business Day next preceding the date upon
which notice of any such termination is furnished to Certificateholders pursuant
to the third paragraph of this Section 9.01) in each case, plus accrued and
unpaid interest thereon at the weighted average of the Mortgage Rates through
the end of the Due Period preceding the final Distribution Date plus
unreimbursed Servicing Advances, Advances, any unpaid Servicing Fees allocable
to such Mortgage Loans and REO Properties, any accrued and unpaid Net WAC Rate
Carryover Amount; provided, however, such option may only be exercised if (i)
the Termination Price is sufficient to pay all interest accrued on, as well as
amounts necessary to retire the principal balance of, each class of notes issued
pursuant to the Indenture and any remaining amounts owed to the trustee under
the Indenture and the NIMS Insurer on the date such notes are retired and (ii)
the fair market value of the Mortgage Loans and REO Properties determined as
described above is at least equal to the Principal Balance of the Mortgage Loans
(after giving effect to scheduled payments of principal due during the related
Due Period, to the extent received or advanced, and unscheduled collections of
principal received during the related Prepayment Period) and the appraised value
of the REO Properties.

                  (b) The majority holder of the Class CE Certificates (so long
as such holder is not an affiliate of the Seller) or if such majority holder
fails to exercise such right, the Servicer (or if the Servicer fails to exercise
such right, the NIMS Insurer) shall have the right (the party exercising such
right, the "Terminator"), to purchase all of the Mortgage Loans and each REO
Property remaining in REMIC I pursuant to clause (i) of the preceding paragraph
no later than the Determination Date

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<PAGE>

in the month immediately preceding the Distribution Date on which the
Certificates will be retired; provided, however, that the Terminator may elect
to purchase all of the Mortgage Loans and each REO Property remaining in REMIC I
pursuant to clause (i) above only if the aggregate Stated Principal Balance of
the Mortgage Loans and each REO Property remaining in the Trust Fund at the time
of such election is reduced to less than 10% of the aggregate Stated Principal
Balance of the Mortgage Loans as of the Cut-off Date. By acceptance of the
Residual Certificates, the Holder of the Residual Certificates agrees for so
long as any notes insured by the NIMS Insurer and secured by all or a portion of
the Class CE, Class P or Class R Certificates are outstanding, in connection
with any termination hereunder, to assign and transfer any amounts in excess of
par, and to the extent received in respect of such termination, to pay any such
amounts to the Holders of the Class CE Certificates.

                  (c) Notice of the liquidation of the Certificates shall be
given promptly by the Trustee by letter to Certificateholders and the NIMS
Insurer mailed (a) in the event such notice is given in connection with the
purchase of the Mortgage Loans and each REO Property by the Terminator, not
earlier than the 10th day and not later than the 20th day of the month next
preceding the month of the final distribution on the Certificates or (b)
otherwise during the month of such final distribution on or before the
Determination Date in such month, in each case specifying (i) the Distribution
Date upon which the Trust Fund will terminate and the final payment in respect
of the REMIC I Regular Interests and the Certificates will be made upon
presentation and surrender of the related Certificates at the office of the
Trustee therein designated, (ii) the amount of any such final payment, (iii)
that no interest shall accrue in respect of the REMIC I Regular Interests or the
Certificates from and after the Accrual Period relating to the final
Distribution Date therefor and (iv) that the Record Date otherwise applicable to
such Distribution Date is not applicable, payments being made only upon
presentation and surrender of the Certificates at the office of the Trustee. In
the event such notice is given in connection with the purchase of all of the
Mortgage Loans and each REO Property remaining in REMIC I by the Terminator, the
Terminator shall deliver to the Trustee for deposit in the Distribution Account
not later than the last Business Day of the month next preceding the month of
the final distribution on the Certificates an amount in immediately available
funds equal to the Termination Price. The Trustee shall remit to the Servicer
from such funds deposited in the Distribution Account (i) any amounts which the
Servicer would be permitted to withdraw and retain from the Collection Account
pursuant to Section 3.11 and (ii) any other amounts otherwise payable by the
Trustee to the Servicer from amounts on deposit in the Distribution Account
pursuant to the terms of this Agreement, in each case prior to making any final
distributions pursuant to Section 10.01(d) below. Upon certification to the
Trustee by the Terminator of the making of such final deposit, the Trustee shall
promptly release to the Terminator the Mortgage Files for the remaining Mortgage
Loans, and the Trustee shall execute all assignments, endorsements and other
instruments necessary to effectuate such transfer.

                  (d) Upon presentation of the Certificates by the
Certificateholders on the final Distribution Date, the Trustee shall distribute
to each Certificateholder so presenting and surrendering its Certificates the
amount otherwise distributable on such Distribution Date in accordance with
Section 4.01 in respect of the Certificates so presented and surrendered. Any
funds not distributed to any Holder or Holders of Certificates being retired on
such Distribution Date because of the failure of such Holder or Holders to
tender their Certificates shall, on such date, be set aside and held in trust
and credited to the account of the appropriate non-tendering Holder or

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<PAGE>

Holders. If any Certificates as to which notice has been given pursuant to this
Section 9.01 shall not have been surrendered for cancellation within six months
after the time specified in such notice, the Trustee shall mail a second notice
to the remaining non-tendering Certificateholders to surrender their
Certificates for cancellation in order to receive the final distribution with
respect thereto. If within one year after the second notice all such
Certificates shall not have been surrendered for cancellation, the Trustee
shall, directly or through an agent, mail a final notice to the remaining
non-tendering Certificateholders concerning surrender of their Certificates. The
costs and expenses of maintaining the funds in trust and of contacting such
Certificateholders shall be paid out of the assets remaining in the Trust Fund.
If within one year after the final notice any such Certificates shall not have
been surrendered for cancellation, the Trustee shall pay to UBS Securities LLC
all such amounts, and all rights of non-tendering Certificateholders in or to
such amounts shall thereupon cease. No interest shall accrue or be payable to
any Certificateholder on any amount held in trust by the Trustee as a result of
such Certificateholder's failure to surrender its Certificate(s) for final
payment thereof in accordance with this Section 9.01. Any such amounts held in
trust by the Trustee shall be held in an Eligible Account and the Trustee may
direct any depository institution maintaining such account to invest the funds
in one or more Permitted Investments. All income and gain realized from the
investment of funds deposited in such accounts held in trust by the Trustee
shall be for the benefit of the Trustee; provided, however, that the Trustee
shall deposit in such account the amount of any loss of principal incurred in
respect of any such Permitted Investment made with funds in such accounts
immediately upon the realization of such loss.

                  Immediately following the deposit of funds in trust hereunder
in respect of the Certificates, the Trust Fund shall terminate.

                  SECTION 9.02. Additional Termination Requirements.

                  (a) In the event that the Terminator purchases all the
         Mortgage Loans and each REO Property or the final payment on or other
         liquidation of the last Mortgage Loan or REO Property remaining in
         REMIC I pursuant to Section 9.01, the Trust Fund shall be terminated in
         accordance with the following additional requirements:

                  (i) The Trustee shall specify the first day in the 90-day
         liquidation period in a statement attached to each Trust REMIC's final
         Tax Return pursuant to Treasury regulation Section 1.860F-1 and shall
         satisfy all requirements of a qualified liquidation under Section 860F
         of the Code and any regulations thereunder, as evidenced by an Opinion
         of Counsel obtained at the expense of the Terminator;

                  (ii) During such 90-day liquidation period and, at or prior to
         the time of making of the final payment on the Certificates, the
         Trustee shall sell all of the assets of REMIC I to the Terminator for
         cash; and

                  (iii) At the time of the making of the final payment on the
         Certificates, the Trustee shall distribute or credit, or cause to be
         distributed or credited, to the Holders of the Residual Certificates
         all cash on hand in the Trust Fund (other than cash retained to meet
         claims), and the Trust Fund shall terminate at that time.

                                      -133-

<PAGE>

                  (b) At the expense of the requesting Terminator, the Depositor
shall prepare or cause to be prepared the documentation required in connection
with the adoption of a plan of liquidation of each Trust REMIC pursuant to this
Section 9.02.

                  (c) By their acceptance of Certificates, the Holders thereof
hereby agree to authorize the Trustee to specify the 90-day liquidation period
for each Trust REMIC, which authorization shall be binding upon all successor
Certificateholders.

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<PAGE>

                                    ARTICLE X

                                REMIC PROVISIONS

                  SECTION 10.01. REMIC Administration.

                  (a) The Trustee shall elect to treat each Trust REMIC as a
REMIC under the Code and, if necessary, under applicable state law. Each such
election will be made by the Trustee on Form 1066 or other appropriate federal
tax or information return or any appropriate state return for the taxable year
ending on the last day of the calendar year in which the Certificates are
issued. For the purposes of the REMIC election in respect of REMIC I, the REMIC
I Regular Interests shall be designated as the Regular Interests in REMIC I and
the Class R-I Interest shall be designated as the Residual Interest in REMIC I.
The Class A Certificates, the Mezzanine Certificates, the Class CE Interest and
the Class P Interest shall be designated as the Regular Interests in REMIC II
and the Class R-II Interest shall be designated as the Residual Interest in
REMIC II. The CE Certificates shall be designated as the Regular Interests in
REMIC III and the Class R-III Interest shall be designated as the Residual
Interest in REMIC III. The P Certificates shall be designated as the Regular
Interests in REMIC IV and the Class R-IV Interest shall be designated as the
Residual Interest in REMIC IV. The Trustee shall not permit the creation of any
"interests" in any Trust REMIC (within the meaning of Section 860G of the Code)
other than the REMIC I Regular Interests, the Class CE Interest, the Class P
Interest and the interests represented by the Certificates.

                  (b) The Closing Date is hereby designated as the "Startup Day"
of each Trust REMIC within the meaning of Section 860G(a)(9) of the Code.

                  (c) The Trustee shall be reimbursed for any and all expenses
relating to any tax audit of the Trust Fund (including, but not limited to, any
professional fees or any administrative or judicial proceedings with respect to
any Trust REMIC that involve the Internal Revenue Service or state tax
authorities), including the expense of obtaining any tax related Opinion of
Counsel except as specified herein. The Trustee, as agent for each Trust REMIC's
tax matters person shall (i) act on behalf of the Trust Fund in relation to any
tax matter or controversy involving any Trust REMIC and (ii) represent the Trust
Fund in any administrative or judicial proceeding relating to an examination or
audit by any governmental taxing authority with respect thereto. The holder of
the largest Percentage Interest of the Residual Certificates shall be
designated, in the manner provided under Treasury regulations section
1.860F-4(d) and Treasury regulations section 301.6231(a)(7)-1, as the tax
matters person of the related REMIC created hereunder. By their acceptance
thereof, the holder of the largest Percentage Interest of the Residual
Certificates hereby agrees to irrevocably appoint the Trustee or an Affiliate as
its agent to perform all of the duties of the tax matters person for the Trust
Fund.

                  (d) The Trustee shall prepare, sign and file all of the Tax
Returns (including Form 8811, which must be filed within 30 days following the
Closing Date) in respect of each Trust REMIC. The expenses of preparing and
filing such returns shall be borne by the Trustee without any right of
reimbursement therefor.

                                      -135-

<PAGE>

                  (e) The Trustee shall perform on behalf of each Trust REMIC
all reporting and other tax compliance duties that are the responsibility of
such REMIC under the Code, the REMIC Provisions or other compliance guidance
issued by the Internal Revenue Service or any state or local taxing authority.
Among its other duties, as required by the Code, the REMIC Provisions or other
such compliance guidance, the Trustee shall provide (i) to any Transferor of a
Residual Certificate such information as is necessary for the application of any
tax relating to the transfer of a Residual Certificate to any Person who is not
a Permitted Transferee, (ii) to the Certificateholders such information or
reports as are required by the Code or the REMIC Provisions including reports
relating to interest, original issue discount and market discount or premium
(using the Prepayment Assumption as required) and (iii) to the Internal Revenue
Service the name, title, address and telephone number of the person who will
serve as the representative of each Trust REMIC. The Depositor shall provide or
cause to be provided to the Trustee, within ten (10) days after the Closing
Date, all information or data that the Trustee reasonably determines to be
relevant for tax purposes as to the valuations and issue prices of the
Certificates, including, without limitation, the price, yield, prepayment
assumption and projected cash flow of the Certificates.

                  (f) The Trustee shall take such action and shall cause each
Trust REMIC to take such action as shall be necessary to create or maintain the
status thereof as a REMIC under the REMIC Provisions. The Trustee shall not take
any action or cause the Trust Fund to take any action or fail to take (or fail
to cause to be taken) any action that, under the REMIC Provisions, if taken or
not taken, as the case may be, could (i) endanger the status of any Trust REMIC
as a REMIC or (ii) result in the imposition of a tax upon the Trust Fund
(including but not limited to the tax on prohibited transactions as defined in
Section 860F(a)(2) of the Code and the tax on contributions to a REMIC set forth
in Section 860G(d) of the Code) (either such event, an "Adverse REMIC Event")
unless the Trustee and the NIMS Insurer has received an Opinion of Counsel,
addressed to the Trustee (at the expense of the party seeking to take such
action but in no event at the expense of the Trustee) to the effect that the
contemplated action will not, with respect to any Trust REMIC, endanger such
status or result in the imposition of such a tax, nor shall the Servicer take or
fail to take any action (whether or not authorized hereunder) as to which the
Trustee and the NIMS Insurer has advised it in writing that it has received an
Opinion of Counsel to the effect that an Adverse REMIC Event could occur with
respect to such action; provided that the Servicer may conclusively rely on such
Opinion of Counsel and shall incur no liability for its action or failure to act
in accordance with such Opinion of Counsel. In addition, prior to taking any
action with respect to any Trust REMIC or the respective assets of each, or
causing any Trust REMIC to take any action, which is not contemplated under the
terms of this Agreement, the Servicer will consult with the Trustee, the NIMS
Insurer or its designee, in writing, with respect to whether such action could
cause an Adverse REMIC Event to occur with respect to any Trust REMIC and the
Servicer shall not take any such action or cause any Trust REMIC to take any
such action as to which the Trustee or the NIMS Insurer has advised it in
writing that an Adverse REMIC Event could occur; provided that the Servicer may
conclusively rely on such writing and shall incur no liability for its action or
failure to act in accordance with such writing. The Trustee or the NIMS Insurer
may consult with counsel to make such written advice, and the cost of same shall
be borne by the party seeking to take the action not permitted by this
Agreement, but in no event shall such cost be an expense of the Trustee. At all
times as may be required by the Code, the Trustee will ensure that substantially
all of the assets of REMIC I will consist of "qualified mortgages" as defined in
Section 860G(a)(3) of the Code and

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<PAGE>

"permitted investments" as defined in Section 860G(a)(5) of the Code, to the
extent such obligations are within the Trustee's control and not otherwise
inconsistent with the terms of this Agreement.

                  (g) In the event that any tax is imposed on "prohibited
transactions" of any REMIC created hereunder as defined in Section 860F(a)(2) of
the Code, on the "net income from foreclosure property" of such REMIC as defined
in Section 860G(c) of the Code, on any contributions to any such REMIC after the
Startup Day therefor pursuant to Section 860G(d) of the Code, or any other tax
is imposed by the Code or any applicable provisions of state or local tax laws,
such tax shall be charged (i) to the Trustee pursuant to Section 10.03 hereof,
if such tax arises out of or results from a breach by the Trustee of any of its
obligations under this Article X, (ii) to the Servicer pursuant to Section 10.03
hereof, if such tax arises out of or results from a breach by the Servicer of
any of its obligations under Article III or this Article X, or (iii) against
amounts on deposit in the Distribution Account and shall be paid by withdrawal
therefrom.

                  (h) On or before April 15th of each calendar year, commencing
April 15, 2004, the Trustee shall deliver to each Rating Agency and the NIMS
Insurer an Officer's Certificate of the Trustee stating the Trustee's compliance
with this Article X (without regard to any action taken by any party other than
the Trustee).

                  (i) The Trustee shall, for federal income tax purposes,
maintain books and records with respect to each Trust REMIC on a calendar year
and on an accrual basis.

                  (j) Following the Startup Day, neither the Servicer nor the
Trustee shall accept any contributions of assets to any Trust REMIC other than
in connection with any Qualified Substitute Mortgage Loan delivered in
accordance with Section 2.03 unless it shall have received an Opinion of Counsel
to the effect that the inclusion of such assets in the Trust Fund will not cause
the related REMIC to fail to qualify as a REMIC at any time that any
Certificates are outstanding or subject such REMIC to any tax under the REMIC
Provisions or other applicable provisions of federal, state and local law or
ordinances.

                  (k) Neither the Trustee nor the Servicer shall enter into any
arrangement by which any Trust REMIC will receive a fee or other compensation
for services nor permit either REMIC to receive any income from assets other
than "qualified mortgages" as defined in Section 860G(a)(3) of the Code or
"permitted investments" as defined in Section 860G(a)(5) of the Code.

                  SECTION 10.02. Prohibited Transactions and Activities.

                  None of the Depositor, the Servicer or the Trustee shall sell,
dispose of or substitute for any of the Mortgage Loans (except in connection
with (i) the foreclosure of a Mortgage Loan, including but not limited to, the
acquisition or sale of a Mortgaged Property acquired by deed in lieu of
foreclosure, (ii) the bankruptcy of REMIC I, (iii) the termination of REMIC I
pursuant to Article IX of this Agreement, (iv) a substitution pursuant to
Article II of this Agreement or (v) a purchase of Mortgage Loans pursuant to
Article II or III of this Agreement), nor acquire any assets for any Trust REMIC
(other than REO Property acquired in respect of a defaulted Mortgage Loan), nor
sell or dispose of any investments in the Collection Account or the Distribution
Account for gain, nor accept any contributions to any Trust REMIC after the
Closing Date (other than a Qualified

                                      -137-

<PAGE>

Substitute Mortgage Loan delivered in accordance with Section 2.03), unless it
has received an Opinion of Counsel, addressed to the Trustee and the NIMS
Insurer (at the expense of the party seeking to cause such sale, disposition,
substitution, acquisition or contribution but in no event at the expense of the
Trustee) that such sale, disposition, substitution, acquisition or contribution
will not (a) affect adversely the status of any Trust REMIC as a REMIC or (b)
cause any Trust REMIC to be subject to a tax on "prohibited transactions" or
"contributions" pursuant to the REMIC Provisions.

                  SECTION 10.03. Servicer and Trustee Indemnification.

                  (a) In the event that any Trust REMIC fails to qualify as a
REMIC, loses its status as a REMIC, or incurs federal, state or local taxes as a
result of a prohibited transaction or prohibited contribution under the REMIC
Provisions due to (i) the negligent performance by the Trustee of its duties and
obligations set forth herein or (ii) any state, local or franchise taxes imposed
upon the Trust Fund as a result of the location of the Trustee or any
co-trustee, the Trustee shall indemnify the NIMS Insurer and the Trust Fund
against any and all Losses resulting from such negligence, including, without
limitation, any reasonable attorneys' fees imposed on or incurred as a result of
a breach of the Trustee's or any co-trustee's covenants; provided, however, that
the Trustee shall not be liable for any such Losses attributable to the action
or inaction of the Servicer, the Depositor or the Holder of such Residual
Certificate, as applicable, nor for any such Losses resulting from
misinformation provided by the Holder of such Residual Certificate on which the
Trustee has relied. The foregoing shall not be deemed to limit or restrict the
rights and remedies of the Holder of such Residual Certificate now or hereafter
existing at law or in equity. Notwithstanding the foregoing, however, in no
event shall the Trustee have any liability (1) for any action or omission that
is taken in accordance with and in compliance with the express terms of, or
which is expressly permitted by the terms of, this Agreement, (2) for any Losses
other than arising out of a negligent performance by the Trustee of its duties
and obligations set forth herein, and (3) for any special or consequential
damages to Certificateholders (in addition to payment of principal and interest
on the Certificates).

                  (b) In the event that any Trust REMIC fails to qualify as a
REMIC, loses its status as a REMIC, or incurs federal, state or local taxes as a
result of a prohibited transaction or prohibited contribution under the REMIC
Provisions due to (i) the negligent performance by the Servicer of its duties
and obligations set forth herein or (ii) any state, local or franchise taxes
imposed upon the Trust Fund as a result of the location of the Servicer or any
sub-servicer, the Servicer shall indemnify the NIMS Insurer, the Trustee and the
Trust Fund against any and all losses, claims, damages, liabilities or expenses
("Losses") resulting from such negligence, including, without limitation, any
reasonable attorneys' fees imposed on or incurred as a result of a breach of the
Servicer's or any sub- servicer's covenants; provided, however, that the
Servicer shall not be liable for any such Losses attributable to the action or
inaction of the Trustee, the Depositor or the Holder of such Residual
Certificate, as applicable, nor for any such Losses resulting from
misinformation provided by the Holder of such Residual Certificate on which the
Servicer has relied. The foregoing shall not be deemed to limit or restrict the
rights and remedies of the Holder of such Residual Certificate now or hereafter
existing at law or in equity. Notwithstanding the foregoing, however, in no
event shall the Servicer have any liability (1) for any action or omission that
is taken in accordance with and in compliance with the express terms of, or
which is expressly permitted by the terms of, this Agreement, (2) for any Losses
other than arising out of a negligent performance by the Servicer of

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<PAGE>

its duties and obligations set forth herein, and (3) for any special or
consequential damages to Certificateholders (in addition to payment of principal
and interest on the Certificates).

                                      -139-

<PAGE>

                                   ARTICLE XI

                            MISCELLANEOUS PROVISIONS

                  SECTION 11.01. Amendment.

                  This Agreement may be amended from time to time by the
Depositor, the Servicer and the Trustee with the consent of the NIMS Insurer and
without the consent of any of the Certificateholders, (i) to cure any ambiguity
or defect, (ii) to correct, modify or supplement any provisions herein
(including to give effect to the expectations of Certificateholders), or (iii)
to make any other provisions with respect to matters or questions arising under
this Agreement which shall not be inconsistent with the provisions of this
Agreement, provided that such action shall not adversely affect in any material
respect the interests of any Certificateholder as evidenced by either (i) an
Opinion of Counsel delivered to the Servicer, the Trustee and the NIMS Insurer
or (ii) confirmation from the Rating Agencies, delivered to the Servicer, the
Trustee and the NIMS Insurer, that such amendment will not result in the
reduction or withdrawal of the rating of any outstanding Class of Certificates.
No amendment shall be deemed to adversely affect in any material respect the
interests of any Certificateholder who shall have consented thereto, and no
Opinion of Counsel shall be required to address the effect of any such amendment
on any such consenting Certificateholder.

                  This Agreement may also be amended from time to time by the
Depositor, the Servicer, the NIMS Insurer and the Trustee with the consent of
the NIMS Insurer and the Holders of Certificates entitled to at least 66% of the
Voting Rights for the purpose of adding any provisions to or changing in any
manner or eliminating any of the provisions of this Agreement or of modifying in
any manner the rights of the Holders of Certificates; provided, however, that no
such amendment shall (i) reduce in any manner the amount of, or delay the timing
of, payments received on Mortgage Loans which are required to be distributed on
any Certificate without the consent of the Holder of such Certificate, (ii)
adversely affect in any material respect the interests of the Holders of any
Class of Certificates (as evidenced by either (i) an Opinion of Counsel
delivered to the Trustee and the NIMS Insurer or (ii) confirmation from the
Rating Agencies, delivered to the Servicer, the Trustee and the NIMS Insurer,
that such action will not result in the reduction or withdrawal of the rating of
any outstanding Class of Certificates) in a manner, other than as described in
(i), or (iii) modify the consents required by the immediately preceding clauses
(i) and (ii) without the consent of the Holders of all Certificates then
outstanding. Notwithstanding any other provision of this Agreement, for purposes
of the giving or withholding of consents pursuant to this Section 11.01,
Certificates registered in the name of the Depositor or the Servicer or any
Affiliate thereof shall be entitled to Voting Rights with respect to matters
affecting such Certificates.

                  Notwithstanding any contrary provision of this Agreement,
neither the Trustee nor the NIMS Insurer shall consent to any amendment to this
Agreement unless it shall have first received an Opinion of Counsel satisfactory
to the NIMS Insurer to the effect that such amendment will not result in the
imposition of any tax on any Trust REMIC pursuant to the REMIC Provisions or
cause any Trust REMIC to fail to qualify as a REMIC at any time that any
Certificates are outstanding.

                                      -140-

<PAGE>

                  Promptly after the execution of any such amendment the Trustee
shall furnish a copy of such amendment to each Certificateholder and the NIMS
Insurer.

                  It shall not be necessary for the consent of
Certificateholders under this Section 11.01 to approve the particular form of
any proposed amendment, but it shall be sufficient if such consent shall approve
the substance thereof. The manner of obtaining such consents and of evidencing
the authorization of the execution thereof by Certificateholders shall be
subject to such reasonable regulations as the Trustee may prescribe.

                  The cost of any Opinion of Counsel to be delivered pursuant to
this Section 11.01 shall be borne by the Person seeking the related amendment,
but in no event shall such Opinion of Counsel be an expense of the Trustee.

                  The Trustee may, but shall not be obligated to enter into any
amendment pursuant to this Section that affects its rights, duties and
immunities under this Agreement or otherwise.

                  SECTION 11.02. Recordation of Agreement; Counterparts.

                  To the extent permitted by applicable law, this Agreement is
subject to recordation in all appropriate public offices for real property
records in all the counties or other comparable jurisdictions in which any or
all of the properties subject to the Mortgages are situated, and in any other
appropriate public recording office or elsewhere, such recordation to be
effected by the Servicer at the expense of the Certificateholders, but only upon
direction of the Trustee accompanied by an Opinion of Counsel to the effect that
such recordation materially and beneficially affects the interests of the
Certificateholders.

                  For the purpose of facilitating the recordation of this
Agreement as herein provided and for other purposes, this Agreement may be
executed simultaneously in any number of counterparts, each of which
counterparts shall be deemed to be an original, and such counterparts shall
constitute but one and the same instrument.

                  SECTION 11.03. Limitation on Rights of Certificateholders.

                  The death or incapacity of any Certificateholder shall not
operate to terminate this Agreement or the Trust, nor entitle such
Certificateholder's legal representatives or heirs to claim an accounting or to
take any action or proceeding in any court for a partition or winding up of the
Trust Fund, nor otherwise affect the rights, obligations and liabilities of the
parties hereto or any of them.

                  No Certificateholder shall have any right to vote (except as
expressly provided for herein) or in any manner otherwise control the operation
and management of the Trust, or the obligations of the parties hereto, nor shall
anything herein set forth, or contained in the terms of any of the Certificates,
be construed so as to constitute the Certificateholders from time to time as
partners or members of an association; nor shall any Certificateholder be under
any liability to any third person by reason of any action taken by the parties
to this Agreement pursuant to any provision hereof.

                                      -141-

<PAGE>

                  No Certificateholder shall have any right by virtue of any
provision of this Agreement to institute any suit, action or proceeding in
equity or at law upon or under or with respect to this Agreement, unless such
Holder previously shall have given to the Trustee a written notice of default
and of the continuance thereof, as hereinbefore provided, and unless also the
Holders of Certificates entitled to at least 25% of the Voting Rights shall have
made written request upon the Trustee to institute such action, suit or
proceeding in its own name as Trustee hereunder and shall have offered to the
Trustee such reasonable indemnity as it may require against the costs, expenses
and liabilities to be incurred therein or thereby, and the Trustee, for 15 days
after its receipt of such notice, request and offer of indemnity, shall have
neglected or refused to institute any such action, suit or proceeding. It is
understood and intended, and expressly covenanted by each Certificateholder with
every other Certificateholder and the Trustee, that no one or more Holders of
Certificates shall have any right in any manner whatsoever by virtue of any
provision of this Agreement to affect, disturb or prejudice the rights of the
Holders of any other of such Certificates, or to obtain or seek to obtain
priority over or preference to any other such Holder, or to enforce any right
under this Agreement, except in the manner herein provided and for the equal,
ratable and common benefit of all Certificateholders. For the protection and
enforcement of the provisions of this Section, each and every Certificateholder
and the Trustee shall be entitled to such relief as can be given either at law
or in equity.

                  SECTION 11.04. Governing Law.

                  This Agreement shall be construed in accordance with the laws
of the State of New York and the obligations, rights and remedies of the parties
hereunder shall be determined in accordance with such laws.

                  SECTION 11.05. Notices.

                  All directions, demands and notices hereunder shall be in
writing and shall be deemed to have been duly given when received if personally
delivered at or mailed by first class mail, postage prepaid, or by express
delivery service or delivered in any other manner specified herein, to (a) in
the case of the Depositor, 1285 Avenue of the Americas, New York, New York
10019, Attention: Glenn McIntyre (telecopy number (212) 713-2080), or such other
address or telecopy number as may hereafter be furnished to the Servicer, the
NIMS Insurer and the Trustee in writing by the Depositor, (b) in the case of the
Servicer, 10790 Rancho Bernardo Road, San Diego, California 82127, Attention:
Cindy L. Ducks, with a copy to 347 Thornall Street, Edison, New Jersey 08877,
Attention: General Counsel, or such other address or telecopy number as may
hereafter be furnished to the Trustee, the NIMS Insurer and the Depositor in
writing by the Servicer, (c) in the case of the Trustee, 60 Livingston Avenue,
St. Paul, Minnesota 55107, Attention: Structured Finance/MASTR 2003-WMC2
(telecopy number (651) 495-8090), or such other address or telecopy number as
may hereafter be furnished to the Depositor, the NIMS Insurer and the Servicer
in writing by the Trustee, or such other address or telecopy number as may
hereafter be furnished to the Servicer, the NIMS Insurer and the Depositor in
writing by the Trustee and (d) in the case of the NIMS Insurer, if any, as
applicable, (i) Radian Insurance Inc., 1601 Market Street, Philadelphia,
Pennsylvania 19103, Attention: General Counsel and (ii) Financial Security
Assurance Inc., 350 Park Avenue, New York, New York 10022, Attn: Transaction
Oversight, or such other address or telecopy number as may hereafter be
furnished to the Servicer, the Depositor and the Trustee in

                                      -142-

<PAGE>

writing by the NIMS Insurer. Any notice required or permitted to be given to a
Certificateholder shall be given by first class mail, postage prepaid, at the
address of such Holder as shown in the Certificate Register. Any notice so
mailed within the time prescribed in this Agreement shall be conclusively
presumed to have been duly given when mailed, whether or not the
Certificateholder receives such notice. A copy of any notice required to be
telecopied hereunder also shall be mailed to the appropriate party in the manner
set forth above.

                  SECTION 11.06. Severability of Provisions.

                  If any one or more of the covenants, agreements, provisions or
terms of this Agreement shall be for any reason whatsoever held invalid, then
such covenants, agreements, provisions or terms shall be deemed severable from
the remaining covenants, agreements, provisions or terms of this Agreement and
shall in no way affect the validity or enforceability of the other provisions of
this Agreement or of the Certificates or the rights of the Holders thereof.

                  SECTION 11.07. Notice to Rating Agencies and the NIMS Insurer.

                  The Trustee shall use its best efforts promptly to provide
notice to the Rating Agencies and the NIMS Insurer with respect to each of the
following of which it has actual knowledge:

                  1. Any material change or amendment to this Agreement;

                  2. The occurrence of any Servicer Event of Default that has
         not been cured or waived;

                  3. The resignation or termination of the Servicer or the
         Trustee;

                  4. The repurchase or substitution of Mortgage Loans pursuant
         to or as contemplated by Section 2.03;

                  5. The final payment to the Holders of any Class of
         Certificates;

                  6. Any change in the location of the Collection Account or the
         Distribution Account;

                  7. Any event that would result in the inability of the Trustee
         to make advances regarding delinquent Mortgage Loans; and

                  8. The filing of any claim under any Servicer's blanket bond
         and errors and omissions insurance policy required by Section 3.14 or
         the cancellation or material modification of coverage under any such
         instrument.

                  In addition, the Trustee shall promptly furnish to each Rating
Agency and the NIMS Insurer copies of each report to Certificateholders
described in Section 4.02 and the Servicer shall promptly furnish to each Rating
Agency copies of the following:

                                     -143-

<PAGE>

                  1. Each annual statement as to compliance described in Section
         3.20; and

                  2. Each annual independent public accountants' servicing
         report described in Section 3.21.

                  Any such notice pursuant to this Section 11.07 shall be in
writing and shall be deemed to have been duly given if personally delivered at
or mailed by first class mail, postage prepaid, or by express delivery service
to Moody's Investors Service Inc., 99 Church Street, New York, New York 10004
and Standard & Poor's Ratings Services, a division of the McGraw-Hill Companies,
Inc., 55 Water Street, New York, New York 10007 or such other addresses as the
Rating Agencies may designate in writing to the parties hereto.

                  SECTION 11.08. Article and Section References.

                  All article and section references used in this Agreement,
unless otherwise provided, are to articles and sections in this Agreement.

                  SECTION 11.09. Grant of Security Interest.

                  It is the express intent of the parties hereto that the
conveyance of the Mortgage Loans by the Depositor to the Trustee, be, and be
construed as, a sale of the Mortgage Loans by the Depositor and not a pledge of
the Mortgage Loans to secure a debt or other obligation of the Depositor.
However, in the event that, notwithstanding the aforementioned intent of the
parties, the Mortgage Loans are held to be property of the Depositor, then, (a)
it is the express intent of the parties that such conveyance be deemed a pledge
of the Mortgage Loans by the Depositor to the Trustee to secure a debt or other
obligation of the Depositor and (b)(1) this Agreement shall also be deemed to be
a security agreement within the meaning of Articles 8 and 9 of the Uniform
Commercial Code as in effect from time to time in the State of New York; (2) the
conveyance provided for in Section 2.01 hereof shall be deemed to be a grant by
the Depositor to the Trustee of a security interest in all of the Depositor's
right, title and interest in and to the Mortgage Loans and all amounts payable
to the holders of the Mortgage Loans in accordance with the terms thereof and
all proceeds of the conversion, voluntary or involuntary, of the foregoing into
cash, instruments, securities or other property, including without limitation
all amounts, other than investment earnings, from time to time held or invested
in the Collection Account and the Distribution Account, whether in the form of
cash, instruments, securities or other property; (3) the obligations secured by
such security agreement shall be deemed to be all of the Depositor's obligations
under this Agreement, including the obligation to provide to the
Certificateholders the benefits of this Agreement relating to the Mortgage Loans
and the Trust Fund; and (4) notifications to persons holding such property, and
acknowledgments, receipts or confirmations from persons holding such property,
shall be deemed notifications to, or acknowledgments, receipts or confirmations
from, financial intermediaries, bailees or agents (as applicable) of the Trustee
for the purpose of perfecting such security interest under applicable law.
Accordingly, the Depositor hereby grants to the Trustee a security interest in
the Mortgage Loans and all other property described in clause (2) of the
preceding sentence, for the purpose of securing to the Trustee the performance
by the Depositor of the obligations described in clause (3) of the preceding
sentence. Notwithstanding the foregoing, the

                                      -144-

<PAGE>

parties hereto intend the conveyance pursuant to Section 2.01 to be a true,
absolute and unconditional sale of the Mortgage Loans and assets constituting
the Trust Fund by the Depositor to the Trustee.

                  SECTION 11.10 Third Party Rights.

                  The NIMs Insurer shall be deemed a third-party beneficiary of
this Agreement to the same extent as if it were a party hereto, and shall have
the right to enforce the provisions of this Agreement.

                                      -145-

<PAGE>

                  IN WITNESS WHEREOF, the Depositor, the Servicer and the
Trustee have caused their names to be signed hereto by their respective officers
thereunto duly authorized, in each case as of the day and year first above
written.

                                             MORTGAGE ASSET SECURITIZATION
                                             TRANSACTIONS, INC.,
                                             as Depositor

                                             By:  /s/ Glenn McIntyre
                                                  --------------------------
                                             Name:    Glenn McIntyre
                                             Title:   Associate Director

                                             By:  /s/ Steve Warjanka
                                                  --------------------------
                                             Name:    Steve Warjanka
                                             Title:   Associate Director

                                             CHASE MANHATTAN MORTGAGE
                                             CORPORATION
                                             as Servicer

                                             By:  /s/ Karen Taylor
                                                  --------------------------
                                             Name:    Karen Taylor
                                             Title:   Vice President

                                             U.S. BANK NATIONAL
                                             ASSOCIATION, as Trustee

                                             By: /s/ Shannon Rantz
                                                 ---------------------------
                                             Name:   Shannon Rantz
                                             Title:  Assistant Vice President

                                      -146-

<PAGE>

STATE OF NEW YORK       )
                        ) ss.:
COUNTY OF NEW YORK      )

                  On the th day of September 2003, before me, a notary public in
and for said State, personally appeared ________________, known to me to be a
________________ of Mortgage Asset Securitization Transactions, Inc., one of the
corporations that executed the within instrument, and also known to me to be the
person who executed it on behalf of said corporation, and acknowledged to me
that such corporation executed the within instrument.

                  IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                                _________________________
                                                       Notary Public

[Notarial Seal]

                                      -147-

<PAGE>

STATE OF ______________         )
                                ) ss.:
COUNTY OF ____________          )

                  On the ____ day of September 2003, before me, a notary public
in and for said State, personally appeared _____________________, known to me to
be __________________ of Chase Manhattan Mortgage Corporation, one of the
corporations that executed the within instrument, and also known to me to be the
person who executed it on behalf of said corporation, and acknowledged to me
that such corporation executed the within instrument.

                  IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                                _________________________
                                                       Notary Public

[Notarial Seal]

                                      -148-

<PAGE>

STATE OF MINNESOTA      )
                        )ss.:
COUNTY OF RAMSEY        )

                  On the ____ day of September 2003, before me, a notary public
in and for said State, personally appeared ______________, known to me to be a
____________ of U.S. Bank National Association, one of the corporations that
executed the within instrument, and also known to me to be the person who
executed it on behalf of said corporation, and acknowledged to me that such
corporation executed the within instrument.

                  IN WITNESS WHEREOF, I have hereunto set my hand and affixed my
official seal the day and year in this certificate first above written.

                                                _________________________
                                                       Notary Public

[Notarial Seal]

                                      -149-

<PAGE>

                                   EXHIBIT A-1
                                   -----------

                          FORM OF CLASS A-1 CERTIFICATE

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
         TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
         PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
         CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
         REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH
         OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
         ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
         TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE
         & CO., HAS AN INTEREST HEREIN.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

<TABLE>
<CAPTION>
<S>                                                        <C>
Series: 2003-WMC2                                          Aggregate Certificate Principal Balance of the
                                                           Class A-1 Certificates as of the Issue Date:
Pass-Through Rate: Variable                                $[__]

Cut-off Date and date of Pooling and                       Denomination: $[__]
Servicing Agreement: September 1, 2003
                                                           Servicer:  Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

                                                           Issue Date: September [__], 2003

                                                           CUSIP: [___]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                      A-1-1

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that Cede & Co. is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class A-1 Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class A-1 Certificates in REMIC II created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class A-1 Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class A-1 Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class A
Certificates, or otherwise by check mailed by first class mail to the address of
the Person entitled thereto, as such name and address shall appear on the
Certificate Register. Notwithstanding the above, the final distribution on this
Certificate will be made after due notice by the Trustee of the pendency of such
distribution and only upon presentation and surrender of this Certificate at the
office or agency appointed by the Trustee for that purpose as provided in the
Agreement.

                                      A-1-2

<PAGE>

                  The Pass-Through Rate applicable to the calculation of
interest payable with respect to this Certificate on any Distribution Date shall
equal a rate per annum equal to the lesser of (i) the related Formula Rate for
such Distribution Date and (ii) the related Net WAC Pass-Through Rate for such
Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the rights of the
Certificateholders under the Agreement at any time by the Depositor, the
Servicer and the Trustee with the consent of the Holders of Certificates
entitled to at least 66% of the Voting Rights. Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate Percentage Interest, as requested by the Holder surrendering the same.
No service charge will be made for any such registration of transfer or exchange
of Certificates, but the Trustee may require payment of a sum sufficient to
cover any tax or other governmental charge that may be imposed in connection
with any transfer or exchange of Certificates.

                                      A-1-3

<PAGE>

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                      A-1-4

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                   EXHIBIT A-2
                                   -----------

                         FORM OF CLASS A-3A CERTIFICATE

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
         TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
         PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
         CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
         REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH
         OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
         ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
         TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE
         & CO., HAS AN INTEREST HEREIN.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Certificate Principal Balance of the
                                                           Class A-3A Certificates as of the Issue Date:
Pass-Through Rate: Variable                                $[___]

Cut-off Date and date of Pooling and                       Denomination: $[___]
Servicing Agreement: September 1, 2003
                                                           Servicer:  Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

                                                           Issue Date: September [__], 2003

                                                           CUSIP: [___]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                      A-1-8

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that Cede & Co. is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class A-3A Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class A-3A Certificates in REMIC II created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class A-3A Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class A-3A Certificates the aggregate initial
Certificate Principal Balance of which is in excess of the lesser of (i)
$5,000,000 or (ii) two-thirds of the aggregate initial Certificate Principal
Balance of the Class A Certificates, or otherwise by check mailed by first class
mail to the address of the Person entitled thereto, as such name and address
shall appear on the Certificate Register. Notwithstanding the above, the final
distribution on this Certificate will be made after due notice by the Trustee of
the pendency of such distribution and only upon presentation and surrender

                                      A-1-9

<PAGE>

of this Certificate at the office or agency appointed by the Trustee for that
purpose as provided in the Agreement.

                  The Pass-Through Rate applicable to the calculation of
interest payable with respect to this Certificate on any Distribution Date shall
equal a rate per annum equal to the lesser of (i) the related Formula Rate for
such Distribution Date and (ii) the related Net WAC Pass-Through Rate for such
Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the rights of the
Certificateholders under the Agreement at any time by the Depositor, the
Servicer and the Trustee with the consent of the Holders of Certificates
entitled to at least 66% of the Voting Rights. Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate Percentage Interest, as requested by the Holder surrendering the same.
No service charge will be made for any such registration of transfer or exchange
of Certificates, but the Trustee may require

                                     A-1-10

<PAGE>

payment of a sum sufficient to cover any tax or other governmental charge that
may be imposed in connection with any transfer or exchange of Certificates.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                     A-1-11

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                   EXHIBIT A-3
                                   -----------

                         FORM OF CLASS A-3B CERTIFICATE

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
         TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
         PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
         CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
         REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH
         OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
         ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
         TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE
         & CO., HAS AN INTEREST HEREIN.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

<TABLE>
<CAPTION>
<S>                                                        <C>
Series: 2003-WMC2                                          Aggregate Certificate Principal Balance of the
                                                           Class A-3B Certificates as of the Issue Date:
Pass-Through Rate: Variable                                $[__]

Cut-off Date and date of Pooling and                       Denomination: $[__]
Servicing Agreement: September 1, 2003
                                                           Servicer:  Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

                                                           Issue Date: September [__], 2003

                                                           CUSIP: [___]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                     A-1-15

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that Cede & Co. is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class A-3B Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class A-3B Certificates in REMIC II created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class A-3B Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class A-3B Certificates the aggregate initial
Certificate Principal Balance of which is in excess of the lesser of (i)
$5,000,000 or (ii) two-thirds of the aggregate initial Certificate Principal
Balance of the Class A Certificates, or otherwise by check mailed by first class
mail to the address of the Person entitled thereto, as such name and address
shall appear on the Certificate Register. Notwithstanding the above, the final
distribution on this Certificate will be made after due notice by the Trustee of
the pendency of such distribution and only upon presentation and surrender of
this Certificate at the office or agency appointed by the Trustee for that
purpose as provided in the Agreement.

                                     A-1-16

<PAGE>

                  The Pass-Through Rate applicable to the calculation of
interest payable with respect to this Certificate on any Distribution Date shall
equal a rate per annum equal to the lesser of (i) the related Formula Rate for
such Distribution Date and (ii) the related Net WAC Pass-Through Rate for such
Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the rights of the
Certificateholders under the Agreement at any time by the Depositor, the
Servicer and the Trustee with the consent of the Holders of Certificates
entitled to at least 66% of the Voting Rights. Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate Percentage Interest, as requested by the Holder surrendering the same.
No service charge will be made for any such registration of transfer or exchange
of Certificates, but the Trustee may require payment of a sum sufficient to
cover any tax or other governmental charge that may be imposed in connection
with any transfer or exchange of Certificates.

                                     A-1-17

<PAGE>

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                     A-1-18

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                   EXHIBIT A-4

                          FORM OF CLASS M-1 CERTIFICATE

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
         TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
         PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
         CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
         REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH
         OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
         ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
         TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE
         & CO., HAS AN INTEREST HEREIN.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         THIS CERTIFICATE IS SUBORDINATE TO THE CLASS A-1 CERTIFICATES, THE
         CLASS A-3A CERTIFICATES AND THE CLASS A-3B CERTIFICATES TO THE EXTENT
         DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

                                      A-2-1

<PAGE>

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Certificate Principal Balance of the
                                                           Class M-1 Certificates as of the Issue Date:
Pass-Through Rate: Variable                                $[____]

Cut-off Date and date of Pooling and                       Denomination: $[____]
Servicing Agreement: September 1, 2003
                                                           Servicer:  Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

                                                           Issue Date: September [__], 2003

                                                           CUSIP: [____]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                      A-2-2

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that Cede & Co. is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class M-1 Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class M-1 Certificates in REMIC II created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class M-1 Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class M-1 Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class
M-1 Certificates, or otherwise by check mailed by first class mail to the
address of the Person entitled thereto, as such name and address shall appear on
the Certificate Register. Notwithstanding the above, the final distribution on
this Certificate will be made after due notice by the Trustee of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency appointed by the Trustee for that purpose as provided in
the Agreement.

                                      A-2-3

<PAGE>

                  The Pass-Through Rate applicable to the calculation of
interest payable with respect to this Certificate on any Distribution Date shall
equal a rate per annum equal to the lesser of (i) the related Formula Rate for
such Distribution Date and (ii) the related Net WAC Pass-Through Rate for such
Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the rights of the
Certificateholders under the Agreement at any time by the Depositor, the
Servicer and the Trustee with the consent of the Holders of Certificates
entitled to at least 66% of the Voting Rights. Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate

                                      A-2-4

<PAGE>

Percentage Interest, as requested by the Holder surrendering the same. No
service charge will be made for any such registration of transfer or exchange of
Certificates, but the Trustee may require payment of a sum sufficient to cover
any tax or other governmental charge that may be imposed in connection with any
transfer or exchange of Certificates.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                      A-2-5

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                   EXHIBIT A-5

                          FORM OF CLASS M-2 CERTIFICATE

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
         TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
         PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
         CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
         REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH
         OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
         ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
         TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE
         & CO., HAS AN INTEREST HEREIN.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         THIS CERTIFICATE IS SUBORDINATE TO THE CLASS A-1 CERTIFICATES, THE
         CLASS A-3A CERTIFICATES, THE CLASS A-3B CERTIFICATES AND THE CLASS M-1
         CERTIFICATES TO THE EXTENT DESCRIBED IN THE POOLING AND SERVICING
         AGREEMENT REFERRED TO HEREIN.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

                                      A-3-1

<PAGE>

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Certificate Principal Balance of the
                                                           Class M-2 Certificates as of the Issue Date:
Pass-Through Rate: Variable                                $[____]

Cut-off Date and date of Pooling and                       Denomination: $[____]
Servicing Agreement: September 1, 2003
                                                           Servicer:  Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

                                                           Issue Date: September [__], 2003

                                                           CUSIP: [____]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                      A-3-2

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that Cede & Co. is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class M-2 Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class M-2 Certificates in REMIC II created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class M-2 Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class M-2 Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class
M-2 Certificates, or otherwise by check mailed by first class mail to the
address of the Person entitled thereto, as such name and address shall appear on
the Certificate Register. Notwithstanding the above, the final distribution on
this Certificate will be made after due notice by the Trustee of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency appointed by the Trustee for that purpose as provided in
the Agreement.

                                      A-3-3

<PAGE>

                  The Pass-Through Rate applicable to the calculation of
interest payable with respect to this Certificate on any Distribution Date shall
equal a rate per annum equal to the lesser of (i) the related Formula Rate for
such Distribution Date and (ii) the related Net WAC Pass-Through Rate for such
Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the rights of the
Certificateholders under the Agreement at any time by the Depositor, the
Servicer and the Trustee with the consent of the Holders of Certificates
entitled to at least 66% of the Voting Rights. Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate

                                      A-3-4

<PAGE>

Percentage Interest, as requested by the Holder surrendering the same. No
service charge will be made for any such registration of transfer or exchange of
Certificates, but the Trustee may require payment of a sum sufficient to cover
any tax or other governmental charge that may be imposed in connection with any
transfer or exchange of Certificates.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                      A-3-5

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                   EXHIBIT A-6
                                   -----------

                          FORM OF CLASS M-3 CERTIFICATE

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
         TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
         PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
         CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
         REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH
         OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
         ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
         TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE
         & CO., HAS AN INTEREST HEREIN.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         THIS CERTIFICATE IS SUBORDINATE TO THE CLASS A-1 CERTIFICATES, THE
         CLASS A-3A CERTIFICATES, THE CLASS A-3B CERTIFICATES, THE CLASS M-1
         CERTIFICATES AND THE CLASS M-2 CERTIFICATES TO THE EXTENT DESCRIBED IN
         THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

                                      A-4-1

<PAGE>

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Certificate Principal Balance of the
                                                           Class M-3 Certificates as of the Issue Date:
Pass-Through Rate: Variable                                $[___]

Cut-off Date and date of Pooling and                       Denomination: $[____]
Servicing Agreement: September 1, 2003
                                                           Servicer:  Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

                                                           Issue Date: September [__], 2003

                                                           CUSIP: [____]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                      A-4-2

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that Cede & Co. is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class M-3 Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class M-3 Certificates in REMIC II created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class M-3 Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class M-3 Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class
M-3 Certificates, or otherwise by check mailed by first class mail to the
address of the Person entitled thereto, as such name and address shall appear on
the Certificate Register. Notwithstanding the above, the final distribution on
this Certificate will be made after due notice by the Trustee of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency appointed by the Trustee for that purpose as provided in
the Agreement.

                                      A-4-3

<PAGE>

                  The Pass-Through Rate applicable to the calculation of
interest payable with respect to this Certificate on any Distribution Date shall
equal a rate per annum equal to the lesser of (i) the related Formula Rate for
such Distribution Date and (ii) the related Net WAC Pass-Through Rate for such
Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the rights of the
Certificateholders under the Agreement at any time by the Depositor, the
Servicer and the Trustee with the consent of the Holders of Certificates
entitled to at least 66% of the Voting Rights. Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate

                                      A-4-4

<PAGE>

Percentage Interest, as requested by the Holder surrendering the same. No
service charge will be made for any such registration of transfer or exchange of
Certificates, but the Trustee may require payment of a sum sufficient to cover
any tax or other governmental charge that may be imposed in connection with any
transfer or exchange of Certificates.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                      A-4-5

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                   EXHIBIT A-7
                                   -----------

                          FORM OF CLASS M-4 CERTIFICATE

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
         TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
         PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
         CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
         REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH
         OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
         ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
         TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE
         & CO., HAS AN INTEREST HEREIN.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         THIS CERTIFICATE IS SUBORDINATE TO THE CLASS A-1 CERTIFICATES, THE
         CLASS A-3A CERTIFICATES, THE CLASS A-3B CERTIFICATES, THE CLASS M-1
         CERTIFICATES, THE CLASS M-2 CERTIFICATES AND THE CLASS M-3 CERTIFICATES
         TO THE EXTENT DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED
         TO HEREIN.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

                                      A-5-1

<PAGE>

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Certificate Principal Balance of the
                                                           Class M-4 Certificates as of the Issue Date:
Pass-Through Rate: Variable                                $[____]

Cut-off Date and date of Pooling and                       Denomination: $[____]
Servicing Agreement: September 1, 2003
                                                           Servicer:  Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

                                                           Issue Date: September [__], 2003

                                                           CUSIP: [___]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                      A-5-2

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that Cede & Co. is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class M-4 Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class M-4 Certificates in REMIC II created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class M-4 Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class M-4 Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class
M-4 Certificates, or otherwise by check mailed by first class mail to the
address of the Person entitled thereto, as such name and address shall appear on
the Certificate Register. Notwithstanding the above, the final distribution on
this Certificate will be made after due notice by the Trustee of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency appointed by the Trustee for that purpose as provided in
the Agreement.

                                      A-5-3

<PAGE>

                  The Pass-Through Rate applicable to the calculation of
interest payable with respect to this Certificate on any Distribution Date shall
equal a rate per annum equal to the lesser of (i) the related Formula Rate for
such Distribution Date and (ii) the related Net WAC Pass-Through Rate for such
Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee, the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Servicer and the Trustee with the consent of the Holders of
Certificates entitled to at least 66% of the Voting Rights. Any such consent by
the Holder of this Certificate shall be conclusive and binding on such Holder
and upon all future Holders of this Certificate and of any Certificate issued
upon the transfer hereof or in exchange herefor or in lieu hereof whether or not
notation of such consent is made upon this Certificate. The Agreement also
permits the amendment thereof, in certain limited circumstances, without the
consent of the Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for

                                      A-5-4

<PAGE>

new Certificates of the same Class in authorized denominations evidencing the
same aggregate Percentage Interest, as requested by the Holder surrendering the
same. No service charge will be made for any such registration of transfer or
exchange of Certificates, but the Trustee may require payment of a sum
sufficient to cover any tax or other governmental charge that may be imposed in
connection with any transfer or exchange of Certificates.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                      A-5-5

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                   EXHIBIT A-8
                                   -----------

                          FORM OF CLASS M-5 CERTIFICATE

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
         TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
         PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
         CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
         REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH
         OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
         ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
         TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE
         & CO., HAS AN INTEREST HEREIN.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         THIS CERTIFICATE IS SUBORDINATE TO THE CLASS A-1 CERTIFICATES, THE
         CLASS A-3A CERTIFICATES, THE CLASS A-3B CERTIFICATES, THE CLASS M-1
         CERTIFICATES, THE CLASS M-2 CERTIFICATES, THE CLASS M-3 CERTIFICATES
         AND THE CLASS M-4 CERTIFICATES TO THE EXTENT DESCRIBED IN THE POOLING
         AND SERVICING AGREEMENT REFERRED TO HEREIN.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

                                      A-5-9

<PAGE>

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Certificate Principal Balance of the
                                                           Class M-5 Certificates as of the Issue Date:
Pass-Through Rate: Variable                                $[____]

Cut-off Date and date of Pooling and                       Denomination: $[____]
Servicing Agreement: September 1, 2003
                                                           Servicer:  Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

                                                           Issue Date: September [__], 2003

                                                           CUSIP: [___]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                     A-5-10

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that Cede & Co. is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class M-5 Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class M-5 Certificates in REMIC II created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class M-5 Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class M-5 Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class
M-5 Certificates, or otherwise by check mailed by first class mail to the
address of the Person entitled thereto, as such name and address shall appear on
the Certificate Register. Notwithstanding the above, the final distribution on
this Certificate will be made after due notice by the Trustee of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency appointed by the Trustee for that purpose as provided in
the Agreement.

                                     A-5-11

<PAGE>

                  The Pass-Through Rate applicable to the calculation of
interest payable with respect to this Certificate on any Distribution Date shall
equal a rate per annum equal to the lesser of (i) the related Formula Rate for
such Distribution Date and (ii) the related Net WAC Pass-Through Rate for such
Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee, the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Servicer and the Trustee with the consent of the Holders of
Certificates entitled to at least 66% of the Voting Rights. Any such consent by
the Holder of this Certificate shall be conclusive and binding on such Holder
and upon all future Holders of this Certificate and of any Certificate issued
upon the transfer hereof or in exchange herefor or in lieu hereof whether or not
notation of such consent is made upon this Certificate. The Agreement also
permits the amendment thereof, in certain limited circumstances, without the
consent of the Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for

                                     A-5-12

<PAGE>

new Certificates of the same Class in authorized denominations evidencing the
same aggregate Percentage Interest, as requested by the Holder surrendering the
same. No service charge will be made for any such registration of transfer or
exchange of Certificates, but the Trustee may require payment of a sum
sufficient to cover any tax or other governmental charge that may be imposed in
connection with any transfer or exchange of Certificates.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                     A-5-13

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                   EXHIBIT A-9
                                   -----------

                          FORM OF CLASS M-6 CERTIFICATE

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
         TRUSTEE OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR
         PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
         CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
         REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH
         OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
         ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
         TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE
         & CO., HAS AN INTEREST HEREIN.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         THIS CERTIFICATE IS SUBORDINATE TO THE CLASS A-1 CERTIFICATES, THE
         CLASS A-3A CERTIFICATES, THE CLASS A-3B CERTIFICATES, THE CLASS M-1
         CERTIFICATES, THE CLASS M-2 CERTIFICATES, THE CLASS M-3 CERTIFICATES,
         THE CLASS M-4 CERTIFICATES AND THE CLASS M-5 CERTIFICATES TO THE EXTENT
         DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

                                     A-5-17

<PAGE>

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Certificate Principal Balance of the
                                                           Class M-6 Certificates as of the Issue Date:
Pass-Through Rate: [___]%                                  $[____]

Cut-off Date and date of Pooling and                       Denomination: $[____]
Servicing Agreement: September 1, 2003
                                                           Servicer: Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

                                                           Issue Date: May [__], 2003

                                                           CUSIP: [___]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                     A-5-18

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that Cede & Co. is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class M-6 Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class M-6 Certificates in REMIC II created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class M-6 Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class M-6 Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class
M-6 Certificates, or otherwise by check mailed by first class mail to the
address of the Person entitled thereto, as such name and address shall appear on
the Certificate Register. Notwithstanding the above, the final distribution on
this Certificate will be made after due notice by the Trustee of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency appointed by the Trustee for that purpose as provided in
the Agreement.

                                     A-5-19

<PAGE>

                  The Pass-Through Rate applicable to the calculation of
interest payable with respect to this Certificate on any Distribution Date shall
equal a rate per annum equal to the lesser of (i) the related Formula Rate for
such Distribution Date and (ii) the related Net WAC Pass-Through Rate for such
Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee, the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Servicer and the Trustee with the consent of the Holders of
Certificates entitled to at least 66% of the Voting Rights. Any such consent by
the Holder of this Certificate shall be conclusive and binding on such Holder
and upon all future Holders of this Certificate and of any Certificate issued
upon the transfer hereof or in exchange herefor or in lieu hereof whether or not
notation of such consent is made upon this Certificate. The Agreement also
permits the amendment thereof, in certain limited circumstances, without the
consent of the Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for

                                     A-5-20

<PAGE>

new Certificates of the same Class in authorized denominations evidencing the
same aggregate Percentage Interest, as requested by the Holder surrendering the
same. No service charge will be made for any such registration of transfer or
exchange of Certificates, but the Trustee may require payment of a sum
sufficient to cover any tax or other governmental charge that may be imposed in
connection with any transfer or exchange of Certificates.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                     A-5-21

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                  EXHIBIT A-10
                                  ------------

                          FORM OF CLASS CE CERTIFICATE

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         THIS CERTIFICATE IS SUBORDINATE TO THE CLASS A-1 CERTIFICATES, THE
         CLASS A-3A CERTIFICATES, THE CLASS A-3B CERTIFICATES, THE CLASS M-1
         CERTIFICATES, THE CLASS M-2 CERTIFICATES, THE CLASS M-3 CERTIFICATES,
         THE CLASS M-4 CERTIFICATES, THE CLASS M-5 CERTIFICATES AND THE CLASS
         M-6 CERTIFICATES TO THE EXTENT DESCRIBED IN THE POOLING AND SERVICING
         AGREEMENT REFERRED TO HEREIN.

         THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE
         SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE
         AND MAY NOT BE RESOLD OR TRANSFERRED UNLESS IT IS REGISTERED PURSUANT
         TO SUCH ACT AND LAWS OR IS SOLD OR TRANSFERRED IN TRANSACTIONS THAT ARE
         EXEMPT FROM REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW
         AND IS TRANSFERRED IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF
         THE AGREEMENT.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

                                     A-5-25

<PAGE>

<TABLE>
<CAPTION>
<S>                                                        <C>
Series 2003-WMC2                                           Aggregate Certificate Principal Balance of the
                                                           Class CE Certificates as of the Issue Date:
Pass-Through Rate: Variable                                $[____]

Cut-off Date and date of Pooling and                       Denomination: $[____]
Servicing Agreement: September 1, 2003
                                                           Servicer:  Chase Manhattan Mortgage
First Distribution Date: October 27, 2003                  Corporation

No. 1                                                      Trustee: U.S. Bank National Association

Aggregate Notional Amount of the Class                     Issue Date: September [__], 2003
CE Certificates as of the Issue Date: $[_____]

Notional Amount: $[____]
</TABLE>

         DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL BALANCE OF THIS
         CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH HEREIN. ACCORDINGLY, THE
         OUTSTANDING CERTIFICATE PRINCIPAL BALANCE HEREOF AT ANY TIME MAY BE
         LESS THAN THE AMOUNT SHOWN ABOVE AS THE DENOMINATION OF THIS
         CERTIFICATE.

                                     A-5-26

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that [_______] is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class CE Certificates as
of the Issue Date) in that certain beneficial ownership interest evidenced by
all the Class CE Certificates in REMIC III created pursuant to a Pooling and
Servicing Agreement, dated as specified above (the "Agreement"), among Mortgage
Asset Securitization Transactions, Inc. (hereinafter called the "Depositor,"
which term includes any successor entity under the Agreement), the Servicer and
the Trustee, a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, the capitalized terms used
herein have the meanings assigned in the Agreement. This Certificate is issued
under and is subject to the terms, provisions and conditions of the Agreement,
to which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class CE Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class CE Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class
CE Certificates, or otherwise by check mailed by first class mail to the address
of the Person entitled thereto, as such name and address shall appear on the
Certificate Register. Notwithstanding the above, the final distribution on this
Certificate will be made after due notice by the Trustee of the pendency of such
distribution and only upon presentation and surrender of this Certificate at the
office or agency appointed by the Trustee for that purpose as provided in the
Agreement.

                                     A-5-27

<PAGE>

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the rights of the
Certificateholders under the Agreement at any time by the Depositor, the
Servicer and the Trustee with the consent of the Holders of Certificates
entitled to at least 66% of the Voting Rights. Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate shall be made unless the
transfer is made pursuant to an effective registration statement under the
Securities Act of 1933, as amended (the "1933 Act"), and an effective
registration or qualification under applicable state securities laws, or is made
in a transaction that does not require such registration or qualification. In
the event that such a transfer of this Certificate is to be made without
registration or qualification, the Trustee shall require receipt of (i) if such
transfer is purportedly being made in reliance upon Rule 144A under the 1933
Act, written certifications from the Holder of the Certificate desiring to
effect the transfer, and from such Holder's prospective transferee,
substantially in the forms attached to the Agreement as Exhibit F-1, and (ii) in
all other cases, an Opinion of Counsel satisfactory to it that such transfer may
be made without such registration or qualification (which Opinion of Counsel
shall not be an expense of the Trust Fund or of the Depositor, the Trustee or
the Servicer in their respective capacities as such), together with copies of
the written certification(s) of the Holder of the Certificate desiring to effect
the transfer and/or such Holder's prospective transferee upon which such Opinion
of Counsel is based. None of the Depositor or the Trustee is obligated to
register or qualify the Class of

                                     A-5-28

<PAGE>

Certificates specified on the face hereof under the 1933 Act or any other
securities law or to take any action not otherwise required under the Agreement
to permit the transfer of such Certificates without registration or
qualification. Any Holder desiring to effect a transfer of this Certificate
shall be required to indemnify the Trustee, the Depositor and the Servicer
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such federal and state laws.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate Percentage Interest, as requested by the Holder surrendering the same.
No service charge will be made for any such registration of transfer or exchange
of Certificates, but the Trustee may require payment of a sum sufficient to
cover any tax or other governmental charge that may be imposed in connection
with any transfer or exchange of Certificates.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                     A-5-29

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                  EXHIBIT A-11
                                  ------------

                           FORM OF CLASS P CERTIFICATE

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "REGULAR INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT," AS
         THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE
         INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE
         SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE
         AND MAY NOT BE RESOLD OR TRANSFERRED UNLESS IT IS REGISTERED PURSUANT
         TO SUCH ACT AND LAWS OR IS SOLD OR TRANSFERRED IN TRANSACTIONS THAT ARE
         EXEMPT FROM REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW
         AND IS TRANSFERRED IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF
         THE AGREEMENT.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

                                      A-6-1

<PAGE>

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Certificate Principal Balance of the
                                                           Class P Certificates as of the Issue Date:
Cut-off Date and date of Pooling and                       $100.00
Servicing Agreement: September 1, 2003
                                                           Denomination: $100.00
First Distribution Date: October 27, 2003
                                                           Servicer:  Chase Manhattan Mortgage
No. 1 Corporation

                                                           Trustee: U.S. Bank National Association

                                                           Issue Date: September [__], 2003
</TABLE>

                  DISTRIBUTIONS IN REDUCTION OF THE CERTIFICATE PRINCIPAL
                  BALANCE OF THIS CERTIFICATE MAY BE MADE MONTHLY AS SET FORTH
                  HEREIN. ACCORDINGLY, THE OUTSTANDING CERTIFICATE PRINCIPAL
                  BALANCE HEREOF AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN
                  ABOVE AS THE DENOMINATION OF THIS CERTIFICATE.

                                      A-6-2

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that [_______] is the registered owner of a
Percentage Interest (obtained by dividing the denomination of this Certificate
by the aggregate Certificate Principal Balance of the Class P Certificates as of
the Issue Date) in that certain beneficial ownership interest evidenced by all
the Class P Certificates in REMIC IV created pursuant to a Pooling and Servicing
Agreement, dated as specified above (the "Agreement"), among Mortgage Asset
Securitization Transactions, Inc. (hereinafter called the "Depositor," which
term includes any successor entity under the Agreement), the Servicer and the
Trustee, a summary of certain of the pertinent provisions of which is set forth
hereafter. To the extent not defined herein, the capitalized terms used herein
have the meanings assigned in the Agreement. This Certificate is issued under
and is subject to the terms, provisions and conditions of the Agreement, to
which Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class P Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class P Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class P
Certificates, or otherwise by check mailed by first class mail to the address of
the Person entitled thereto, as such name and address shall appear on the
Certificate Register. Notwithstanding the above, the final distribution on this
Certificate will be made after due notice by the Trustee of the pendency of such
distribution and only upon presentation and surrender of this Certificate at the
office or agency appointed by the Trustee for that purpose as provided in the
Agreement.

                                      A-6-3

<PAGE>

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof
equal to the denomination specified on the face hereof divided by the aggregate
Certificate Principal Balance of the Class of Certificates specified on the face
hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the rights of the
Certificateholders under the Agreement at any time by the Depositor, the
Servicer and the Trustee with the consent of the Holders of Certificates
entitled to at least 66% of the Voting Rights. Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future Holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent is made upon this Certificate. The Agreement also permits the
amendment thereof, in certain limited circumstances, without the consent of the
Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate shall be made unless the
transfer is made pursuant to an effective registration statement under the
Securities Act of 1933, as amended (the "1933 Act"), and an effective
registration or qualification under applicable state securities laws, or is made
in a transaction that does not require such registration or qualification. In
the event that such a transfer of this Certificate is to be made without
registration or qualification, the Trustee shall require receipt of (i) if such
transfer is purportedly being made in reliance upon Rule 144A under the 1933
Act, written certifications from the Holder of the Certificate desiring to
effect the transfer, and from such Holder's prospective transferee,
substantially in the forms attached to the Agreement as Exhibit F-1, and (ii) in
all other cases, an Opinion of Counsel satisfactory to it that such transfer may
be made without such registration or qualification (which Opinion of Counsel
shall not be an expense of the Trust Fund or of the Depositor, the Trustee or
the Servicer in their respective capacities as such), together with copies of
the written certification(s) of the Holder of the Certificate desiring to effect
the transfer and/or such Holder's prospective transferee upon which such Opinion
of Counsel is based. None of the Depositor or the Trustee is obligated to
register or qualify the Class of

                                      A-6-4

<PAGE>

Certificates specified on the face hereof under the 1933 Act or any other
securities law or to take any action not otherwise required under the Agreement
to permit the transfer of such Certificates without registration or
qualification. Any Holder desiring to effect a transfer of this Certificate
shall be required to indemnify the Trustee, the Depositor and the Servicer
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such federal and state laws.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate Percentage Interest, as requested by the Holder surrendering the same.
No service charge will be made for any such registration of transfer or exchange
of Certificates, but the Trustee may require payment of a sum sufficient to
cover any tax or other governmental charge that may be imposed in connection
with any transfer or exchange of Certificates.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assume no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                      A-6-5

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                  EXHIBIT A-12
                                  ------------

                           FORM OF CLASS R CERTIFICATE

         THIS CERTIFICATE MAY NOT BE TRANSFERRED TO A NON-UNITED STATES PERSON.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "RESIDUAL INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT"
         ("REMIC"), AS THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G
         AND 860D OF THE INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         ANY RESALE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE MAY BE
         MADE ONLY IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE
         POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

         THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE
         SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE
         AND MAY NOT BE RESOLD OR TRANSFERRED UNLESS IT IS REGISTERED PURSUANT
         TO SUCH ACT AND LAWS OR IS SOLD OR TRANSFERRED IN TRANSACTIONS THAT ARE
         EXEMPT FROM REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW
         AND IS TRANSFERRED IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF
         THE AGREEMENT.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

         ANY RESALE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE MAY BE
         MADE ONLY IF THE PROPOSED TRANSFEREE PROVIDES (I) AN AFFIDAVIT TO THE
         TRUSTEE THAT (A) SUCH TRANSFEREE IS NOT (1) THE UNITED STATES OR ANY
         POSSESSION THEREOF, ANY STATE OR POLITICAL SUBDIVISION THEREOF, ANY
         FOREIGN GOVERNMENT, ANY INTERNATIONAL ORGANIZATION, OR ANY AGENCY OR
         INSTRUMENTALITY OF ANY OF THE FOREGOING, (2) ANY ORGANIZATION (OTHER
         THAN A COOPERATIVE DESCRIBED IN SECTION 521 OF THE CODE) THAT IS EXEMPT
         FROM THE TAX IMPOSED BY CHAPTER 1 OF THE CODE UNLESS SUCH ORGANIZATION
         IS SUBJECT TO THE TAX IMPOSED BY SECTION 511 OF THE CODE, (3) ANY
         ORGANIZATION DESCRIBED IN SECTION 1381(A)(2)(C) OF THE CODE (ANY SUCH
         PERSON DESCRIBED IN THE FOREGOING CLAUSES (1), (2) OR

                                      A-7-1

<PAGE>

         (3) SHALL HEREINAFTER BE REFERRED TO AS A "DISQUALIFIED ORGANIZATION")
         OR (4) AN AGENT OF A DISQUALIFIED ORGANIZATION AND (B) NO PURPOSE OF
         SUCH TRANSFER IS TO IMPEDE THE ASSESSMENT OR COLLECTION OF TAX, AND
         (II) SUCH TRANSFEREE SATISFIES CERTAIN ADDITIONAL CONDITIONS RELATING
         TO THE FINANCIAL CONDITION OF THE PROPOSED TRANSFEREE. NOTWITHSTANDING
         THE REGISTRATION IN THE CERTIFICATE REGISTER OF ANY TRANSFER, SALE OR
         OTHER DISPOSITION OF THIS CERTIFICATE TO A DISQUALIFIED ORGANIZATION OR
         AN AGENT OF A DISQUALIFIED ORGANIZATION, SUCH REGISTRATION SHALL BE
         DEEMED TO BE OF NO LEGAL FORCE OR EFFECT WHATSOEVER AND SUCH PERSON
         SHALL NOT BE DEEMED TO BE A CERTIFICATEHOLDER FOR ANY PURPOSE
         HEREUNDER, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT OF DISTRIBUTIONS
         ON THIS CERTIFICATE. EACH HOLDER OF THIS CERTIFICATE BY ACCEPTANCE
         HEREOF SHALL BE DEEMED TO HAVE CONSENTED TO THE PROVISIONS OF THIS
         PARAGRAPH AND THE PROVISIONS OF SECTION 5.02(D) OF THE POOLING AND
         SERVICING AGREEMENT REFERRED TO HEREIN. ANY PERSON THAT IS A
         DISQUALIFIED ORGANIZATION IS PROHIBITED FROM ACQUIRING BENEFICIAL
         OWNERSHIP OF THIS CERTIFICATE.

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Percentage Interest of the Class R
                                                           Certificates as of the Issue Date: 100.00%
Cut-off Date and date of Pooling and
Servicing Agreement: September 1, 2003                     Servicer:  Chase Manhattan Mortgage
                                                           Corporation
First Distribution Date: October 27, 2003
                                                           Trustee: U.S. Bank National Association
No.1
                                                           Issue Date: September [__], 2003
</TABLE>

                                      A-7-2

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that [_______] is the registered owner of a
Percentage Interest (as specified above) in that certain beneficial ownership
interest evidenced by all the Certificates of the Class to which this
Certificate belongs created pursuant to a Pooling and Servicing Agreement, dated
as specified above (the "Agreement"), among Mortgage Asset Securitization
Transactions, Inc. (hereinafter called the "Depositor," which term includes any
successor entity under the Agreement), the Servicer and the Trustee, a summary
of certain of the pertinent provisions of which is set forth hereafter. To the
extent not defined herein, the capitalized terms used herein have the meanings
assigned in the Agreement. This Certificate is issued under and is subject to
the terms, provisions and conditions of the Agreement, to which Agreement the
Holder of this Certificate by virtue of the acceptance hereof assents and by
which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class R Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class R Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class R
Certificates, or otherwise by check mailed by first class mail to the address of
the Person entitled thereto, as such name and address shall appear on the
Certificate Register. Notwithstanding the above, the final distribution on this
Certificate will be made after due notice by the Trustee of the pendency of such
distribution and only upon presentation and surrender of this Certificate at the
office or agency appointed by the Trustee for that purpose as provided in the
Agreement.

                                      A-7-3

<PAGE>

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Servicer and the Trustee with the consent of the Holders of
Certificates entitled to at least 66% of the Voting Rights. Any such consent by
the Holder of this Certificate shall be conclusive and binding on such Holder
and upon all future Holders of this Certificate and of any Certificate issued
upon the transfer hereof or in exchange herefor or in lieu hereof whether or not
notation of such consent is made upon this Certificate. The Agreement also
permits the amendment thereof, in certain limited circumstances, without the
consent of the Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate shall be made unless the
transfer is made pursuant to an effective registration statement under the
Securities Act of 1933, as amended (the "1933 Act"), and an effective
registration or qualification under applicable state securities laws, or is made
in a transaction that does not require such registration or qualification. In
the event that such a transfer of this Certificate is to be made without
registration or qualification, the Trustee shall require receipt of (i) if such
transfer is purportedly being made in reliance upon Rule 144A under the 1933
Act, written certifications from the Holder of the Certificate desiring to
effect the transfer, and from such Holder's prospective transferee,
substantially in the forms attached to the Agreement as Exhibit F-1, and (ii) in
all other cases, an Opinion of Counsel satisfactory to it that such transfer may
be made without such registration or qualification (which Opinion of Counsel
shall not be an expense of the Trust Fund or of the Depositor, the Trustee or
the Servicer in their respective capacities as such), together with copies of
the written certification(s) of the Holder of the Certificate desiring to effect
the transfer and/or such Holder's prospective transferee upon which such Opinion
of Counsel is based. Neither the Depositor nor the Trustee is obligated to
register or qualify the Class of

                                      A-7-4

<PAGE>

Certificates specified on the face hereof under the 1933 Act or any other
securities law or to take any action not otherwise required under the Agreement
to permit the transfer of such Certificates without registration or
qualification. Any Holder desiring to effect a transfer of this Certificate
shall be required to indemnify the Trustee, the Depositor and the Servicer
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such federal and state laws.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate Percentage Interest, as requested by the Holder surrendering the same.
No service charge will be made for any such registration of transfer or exchange
of Certificates, but the Trustee may require payment of a sum sufficient to
cover any tax or other governmental charge that may be imposed in connection
with any transfer or exchange of Certificates.

                  Prior to registration of any transfer, sale or other
disposition of this Certificate, the proposed transferee shall provide to the
Trustee (i) an affidavit to the effect that such transferee is any Person other
than a Disqualified Organization or the agent (including a broker, nominee or
middleman) of a Disqualified Organization, and (ii) a certificate that
acknowledges that (A) the Class R Certificates have been designated as a
residual interest in a REMIC, (B) it will include in its income a PRO RATA share
of the net income of the Trust Fund and that such income may be an "excess
inclusion," as defined in the Code, that, with certain exceptions, cannot be
offset by other losses or benefits from any tax exemption, and (C) it expects to
have the financial means to satisfy all of its tax obligations including those
relating to holding the Class R Certificates. Notwithstanding the registration
in the Certificate Register of any transfer, sale or other disposition of this
Certificate to a Disqualified Organization or an agent (including a broker,
nominee or middleman) of a Disqualified Organization, such registration shall be
deemed to be of no legal force or effect whatsoever and such Person shall not be
deemed to be a Certificateholder for any purpose, including, but not limited to,
the receipt of distributions in respect of this Certificate.

                  The Holder of this Certificate, by its acceptance hereof,
shall be deemed to have consented to the provisions of Section 5.02 of the
Agreement and to any amendment of the Agreement deemed necessary by counsel of
the Depositor to ensure that the transfer of this Certificate to any Person
other than a Permitted Transferee or any other Person will not cause the Trust
Fund to cease to qualify as a REMIC or cause the imposition of a tax upon the
REMIC.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                                      A-7-5

<PAGE>

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assumes no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                      A-7-6

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                  EXHIBIT A-13
                                  ------------

                          FORM OF CLASS R-X CERTIFICATE

         THIS CERTIFICATE MAY NOT BE TRANSFERRED TO A NON-UNITED STATES PERSON.

         SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A
         "RESIDUAL INTEREST" IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT"
         ("REMIC"), AS THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G
         AND 860D OF THE INTERNAL REVENUE CODE OF 1986 (THE "CODE").

         ANY RESALE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE MAY BE
         MADE ONLY IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF THE
         POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

         THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE
         SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE
         AND MAY NOT BE RESOLD OR TRANSFERRED UNLESS IT IS REGISTERED PURSUANT
         TO SUCH ACT AND LAWS OR IS SOLD OR TRANSFERRED IN TRANSACTIONS THAT ARE
         EXEMPT FROM REGISTRATION UNDER SUCH ACT AND UNDER APPLICABLE STATE LAW
         AND IS TRANSFERRED IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02 OF
         THE AGREEMENT.

         NO TRANSFER OF THIS CERTIFICATE TO AN EMPLOYEE BENEFIT PLAN OR OTHER
         RETIREMENT ARRANGEMENT SUBJECT TO THE EMPLOYEE RETIREMENT INCOME
         SECURITY ACT OF 1974, AS AMENDED, OR THE CODE WILL BE REGISTERED EXCEPT
         IN COMPLIANCE WITH THE PROCEDURES DESCRIBED HEREIN.

         ANY RESALE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE MAY BE
         MADE ONLY IF THE PROPOSED TRANSFEREE PROVIDES (I) AN AFFIDAVIT TO THE
         TRUSTEE THAT (A) SUCH TRANSFEREE IS NOT (1) THE UNITED STATES OR ANY
         POSSESSION THEREOF, ANY STATE OR POLITICAL SUBDIVISION THEREOF, ANY
         FOREIGN GOVERNMENT, ANY INTERNATIONAL ORGANIZATION, OR ANY AGENCY OR
         INSTRUMENTALITY OF ANY OF THE FOREGOING, (2) ANY ORGANIZATION (OTHER
         THAN A COOPERATIVE DESCRIBED IN SECTION 521 OF THE CODE) THAT IS EXEMPT
         FROM THE TAX IMPOSED BY CHAPTER 1 OF THE CODE UNLESS SUCH ORGANIZATION
         IS SUBJECT TO THE TAX IMPOSED BY SECTION 511 OF THE CODE, (3) ANY
         ORGANIZATION DESCRIBED IN SECTION 1381(A)(2)(C) OF THE CODE (ANY SUCH
         PERSON DESCRIBED IN THE FOREGOING CLAUSES (1), (2) OR

                                      A-7-1

<PAGE>

         (3) SHALL HEREINAFTER BE REFERRED TO AS A "DISQUALIFIED ORGANIZATION")
         OR (4) AN AGENT OF A DISQUALIFIED ORGANIZATION AND (B) NO PURPOSE OF
         SUCH TRANSFER IS TO IMPEDE THE ASSESSMENT OR COLLECTION OF TAX, AND
         (II) SUCH TRANSFEREE SATISFIES CERTAIN ADDITIONAL CONDITIONS RELATING
         TO THE FINANCIAL CONDITION OF THE PROPOSED TRANSFEREE. NOTWITHSTANDING
         THE REGISTRATION IN THE CERTIFICATE REGISTER OF ANY TRANSFER, SALE OR
         OTHER DISPOSITION OF THIS CERTIFICATE TO A DISQUALIFIED ORGANIZATION OR
         AN AGENT OF A DISQUALIFIED ORGANIZATION, SUCH REGISTRATION SHALL BE
         DEEMED TO BE OF NO LEGAL FORCE OR EFFECT WHATSOEVER AND SUCH PERSON
         SHALL NOT BE DEEMED TO BE A CERTIFICATEHOLDER FOR ANY PURPOSE
         HEREUNDER, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT OF DISTRIBUTIONS
         ON THIS CERTIFICATE. EACH HOLDER OF THIS CERTIFICATE BY ACCEPTANCE
         HEREOF SHALL BE DEEMED TO HAVE CONSENTED TO THE PROVISIONS OF THIS
         PARAGRAPH AND THE PROVISIONS OF SECTION 5.02(D) OF THE POOLING AND
         SERVICING AGREEMENT REFERRED TO HEREIN. ANY PERSON THAT IS A
         DISQUALIFIED ORGANIZATION IS PROHIBITED FROM ACQUIRING BENEFICIAL
         OWNERSHIP OF THIS CERTIFICATE.

<TABLE>
<CAPTION>
<S>                                                        <C>
Series:  2003-WMC2                                         Aggregate Percentage Interest of the Class R-
                                                           X Certificates as of the Issue Date: 100.00%
Cut-off Date and date of Pooling and
Servicing Agreement: September 1, 2003                     Servicer:  Chase Manhattan Mortgage
                                                           Corporation
First Distribution Date: October 27, 2003
                                                           Trustee: U.S. Bank National Association
No.1
                                                           Issue Date: September [__], 2003
</TABLE>

                                      A-7-2

<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE

evidencing a beneficial ownership interest in a portion of a Trust Fund (the
"Trust Fund") consisting primarily of a pool of conventional one- to
four-family, fixed-rate and adjustable-rate, first and second lien mortgage
loans (the "Mortgage Loans") formed and sold by

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC., THE SERVICER, THE
         TRUSTEE OR ANY OF THEIR RESPECTIVE AFFILIATES. NEITHER THIS CERTIFICATE
         NOR THE UNDERLYING MORTGAGE LOANS ARE GUARANTEED BY ANY AGENCY OR
         INSTRUMENTALITY OF THE UNITED STATES.

                  This certifies that [_______] is the registered owner of a
Percentage Interest (as specified above) in that certain beneficial ownership
interest evidenced by all the Certificates of the Class to which this
Certificate belongs created pursuant to a Pooling and Servicing Agreement, dated
as specified above (the "Agreement"), among Mortgage Asset Securitization
Transactions, Inc. (hereinafter called the "Depositor," which term includes any
successor entity under the Agreement), the Servicer and the Trustee, a summary
of certain of the pertinent provisions of which is set forth hereafter. To the
extent not defined herein, the capitalized terms used herein have the meanings
assigned in the Agreement. This Certificate is issued under and is subject to
the terms, provisions and conditions of the Agreement, to which Agreement the
Holder of this Certificate by virtue of the acceptance hereof assents and by
which such Holder is bound.

                  Pursuant to the terms of the Agreement, distributions will be
made on the 25th day of each month or, if such 25th day is not a Business Day,
the Business Day immediately following (a "Distribution Date"), commencing on
the First Distribution Date specified above, to the Person in whose name this
Certificate is registered on the Record Date, in an amount equal to the product
of the Percentage Interest evidenced by this Certificate and the amount required
to be distributed to the Holders of Class R-X Certificates on such Distribution
Date pursuant to the Agreement.

                  All distributions to the Holder of this Certificate under the
Agreement will be made or caused to be made by the Trustee by wire transfer in
immediately available funds to the account of the Person entitled thereto if
such Person shall have so notified the Trustee in writing at least five Business
Days prior to the Record Date immediately prior to such Distribution Date and is
the registered owner of Class R-X Certificates the aggregate initial Certificate
Principal Balance of which is in excess of the lesser of (i) $5,000,000 or (ii)
two-thirds of the aggregate initial Certificate Principal Balance of the Class
R-X Certificates, or otherwise by check mailed by first class mail to the
address of the Person entitled thereto, as such name and address shall appear on
the Certificate Register. Notwithstanding the above, the final distribution on
this Certificate will be made after due notice by the Trustee of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency appointed by the Trustee for that purpose as provided in
the Agreement.

                                      A-7-3

<PAGE>

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificates of the Series
specified on the face hereof (herein called the "Certificates") and representing
a Percentage Interest in the Class of Certificates specified on the face hereof.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. As provided in the
Agreement, withdrawals from the Collection Account and the Distribution Account
may be made from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement of advances made, or
certain expenses incurred, with respect to the Mortgage Loans.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Servicer, the Trustee and the Trustee and the
rights of the Certificateholders under the Agreement at any time by the
Depositor, the Servicer and the Trustee with the consent of the Holders of
Certificates entitled to at least 66% of the Voting Rights. Any such consent by
the Holder of this Certificate shall be conclusive and binding on such Holder
and upon all future Holders of this Certificate and of any Certificate issued
upon the transfer hereof or in exchange herefor or in lieu hereof whether or not
notation of such consent is made upon this Certificate. The Agreement also
permits the amendment thereof, in certain limited circumstances, without the
consent of the Holders of any of the Certificates.

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Certificate Register upon surrender of this Certificate for registration
of transfer at the offices or agencies appointed by the Trustee as provided in
the Agreement, duly endorsed by, or accompanied by an assignment in the form
below or other written instrument of transfer in form satisfactory to the
Trustee duly executed by, the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of the same
Class in authorized denominations evidencing the same aggregate Percentage
Interest will be issued to the designated transferee or transferees.

                  No transfer of this Certificate shall be made unless the
transfer is made pursuant to an effective registration statement under the
Securities Act of 1933, as amended (the "1933 Act"), and an effective
registration or qualification under applicable state securities laws, or is made
in a transaction that does not require such registration or qualification. In
the event that such a transfer of this Certificate is to be made without
registration or qualification, the Trustee shall require receipt of (i) if such
transfer is purportedly being made in reliance upon Rule 144A under the 1933
Act, written certifications from the Holder of the Certificate desiring to
effect the transfer, and from such Holder's prospective transferee,
substantially in the forms attached to the Agreement as Exhibit F-1, and (ii) in
all other cases, an Opinion of Counsel satisfactory to it that such transfer may
be made without such registration or qualification (which Opinion of Counsel
shall not be an expense of the Trust Fund or of the Depositor, the Trustee or
the Servicer in their respective capacities as such), together with copies of
the written certification(s) of the Holder of the Certificate desiring to effect
the transfer and/or such Holder's prospective transferee upon which such Opinion
of Counsel is based. Neither the Depositor nor the Trustee is obligated to
register or qualify the Class of

                                      A-7-4

<PAGE>

Certificates specified on the face hereof under the 1933 Act or any other
securities law or to take any action not otherwise required under the Agreement
to permit the transfer of such Certificates without registration or
qualification. Any Holder desiring to effect a transfer of this Certificate
shall be required to indemnify the Trustee, the Depositor and the Servicer
against any liability that may result if the transfer is not so exempt or is not
made in accordance with such federal and state laws.

                  No transfer of this Certificate to a Plan subject to ERISA or
Section 4975 of the Code, any Person acting, directly or indirectly, on behalf
of any such Plan or any Person using "Plan Assets" to acquire this Certificate
shall be made except in accordance with Section 5.02(c) of the Agreement.

                  The Certificates are issuable in fully registered form only
without coupons in Classes and denominations representing Percentage Interests
specified in the Agreement. As provided in the Agreement and subject to certain
limitations therein set forth, the Certificates are exchangeable for new
Certificates of the same Class in authorized denominations evidencing the same
aggregate Percentage Interest, as requested by the Holder surrendering the same.
No service charge will be made for any such registration of transfer or exchange
of Certificates, but the Trustee may require payment of a sum sufficient to
cover any tax or other governmental charge that may be imposed in connection
with any transfer or exchange of Certificates.

                  Prior to registration of any transfer, sale or other
disposition of this Certificate, the proposed transferee shall provide to the
Trustee (i) an affidavit to the effect that such transferee is any Person other
than a Disqualified Organization or the agent (including a broker, nominee or
middleman) of a Disqualified Organization, and (ii) a certificate that
acknowledges that (A) the Class R-X Certificates have been designated as a
residual interest in a REMIC, (B) it will include in its income a PRO RATA share
of the net income of the Trust Fund and that such income may be an "excess
inclusion," as defined in the Code, that, with certain exceptions, cannot be
offset by other losses or benefits from any tax exemption, and (C) it expects to
have the financial means to satisfy all of its tax obligations including those
relating to holding the Class R-X Certificates. Notwithstanding the registration
in the Certificate Register of any transfer, sale or other disposition of this
Certificate to a Disqualified Organization or an agent (including a broker,
nominee or middleman) of a Disqualified Organization, such registration shall be
deemed to be of no legal force or effect whatsoever and such Person shall not be
deemed to be a Certificateholder for any purpose, including, but not limited to,
the receipt of distributions in respect of this Certificate.

                  The Holder of this Certificate, by its acceptance hereof,
shall be deemed to have consented to the provisions of Section 5.02 of the
Agreement and to any amendment of the Agreement deemed necessary by counsel of
the Depositor to ensure that the transfer of this Certificate to any Person
other than a Permitted Transferee or any other Person will not cause the Trust
Fund to cease to qualify as a REMIC or cause the imposition of a tax upon the
REMIC.

                  The Depositor, the Servicer, the Trustee and any agent of the
Depositor, the Servicer or the Trustee may treat the Person in whose name this
Certificate is registered as the owner hereof for all purposes, and none of the
Depositor, the Servicer, the Trustee nor any such agent shall be affected by
notice to the contrary.

                                      A-7-5

<PAGE>

                  The obligations created by the Agreement and the Trust Fund
created thereby shall terminate upon payment to the Certificateholders of all
amounts held by the Trustee and required to be paid to them pursuant to the
Agreement following the earlier of (i) the final payment or other liquidation
(or any advance with respect thereto) of the last Mortgage Loan and REO Property
remaining in REMIC I and (ii) the purchase by the party designated in the
Agreement at a price determined as provided in the Agreement from REMIC I of all
the Mortgage Loans and all property acquired in respect of such Mortgage Loans.
The Agreement permits, but does not require, the party designated in the
Agreement to purchase from REMIC I all the Mortgage Loans and all property
acquired in respect of any Mortgage Loan at a price determined as provided in
the Agreement. The exercise of such right will effect early retirement of the
Certificates; however, such right to purchase is subject to the aggregate Stated
Principal Balance of the Mortgage Loans at the time of purchase being less than
10% of the aggregate principal balance of the Mortgage Loans as of the Cut-off
Date.

                  The recitals contained herein shall be taken as statements of
the Depositor and the Trustee assumes no responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                      A-7-6

<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

Dated: September __, 2003
                                            MASTR ASSET BACKED SECURITIES
                                             TRUST 2003-WMC2

                                            U.S. BANK NATIONAL  ASSOCIATION, not
                                            in its individual capacity, but
                                            solely as Trustee

                                            By:_________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION
                          -----------------------------

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                            U.S. BANK NATIONAL
                                            ASSOCIATION, as Trustee

                                            By:_________________________________
                                                  Authorized Signatory

<PAGE>

                                  ABBREVIATIONS
                                  -------------

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM - as tenants in common                    UNIF GIFT MIN ACT - Custodian

TEN ENT - as tenants by the entireties              (Cust) (Minor) under
                                                    Uniform Gifts
JT TEN - as joint tenants with right                to Minors Act
         if survivorship and not as                 _______________
          tenants in common                            (State)

     Additional abbreviations may also be used though not in the above list.

                                   ASSIGNMENT
                                   ----------

                  FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s)
and transfer(s) unto ___________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
(Please print or typewrite name, address including postal zip code, and Taxpayer
Identification Number of assignee) a Percentage Interest equal to ____%
evidenced by the within Mortgage Pass- Through Certificates and hereby
authorize(s) the registration of transfer of such interest to assignee on the
Certificate Register of the Trust Fund.

         I (we) further direct the Trustee to issue a new Certificate of a like
Percentage Interest and Class to the above named assignee and deliver such
Certificate to the following address:
________________________________________________________________________________
______________________________________________________________________________.

Dated:

                                           _____________________________________
                                           Signature by or on behalf of assignor

                                           _____________________________________
                                           Signature Guaranteed

<PAGE>

                            DISTRIBUTION INSTRUCTIONS

         The assignee should include the following for purposes of distribution:

         Distributions shall be made, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
_______________________________________________________________ for the account
of _______________________________, account number ____________________________,
or, if mailed by check, to______________________________________________________
_______________________________________________________________________________.
Applicable statements should be mailed to_______________________________________
________________________________________________________________________________
_________________.This information is provided by  ____________________________,
the assignee named above, or ____________________________________, as its agent.

<PAGE>

                                    EXHIBIT B
                                    ---------

                                   [Reserved]

                                       B-1

<PAGE>

                                   EXHIBIT C-1
                                   -----------

                     FORM OF TRUSTEE'S INITIAL CERTIFICATION

                                                          [Date]

Mortgage Asset Securitization Transactions, Inc.
1285 Avenue of the Americas
New York, New York 10019

Chase Manhattan Mortgage Corporation
10790 Rancho Bernardo Road
San Diego, California 82127

                  Re:      Pooling and Servicing Agreement, dated as of
                           September 1, 2003, among Mortgage Asset
                           Securitization Transactions, Inc., Chase Manhattan
                           Mortgage Corporation and U.S. Bank National
                           Association, Mortgage Pass-Through Certificates,
                           Series 2003-WMC2
                           --------------------------------------------------

Ladies and Gentlemen:

         Attached is the Trustee's preliminary exception report delivered in
accordance with Section 2.02 of the referenced Pooling and Servicing Agreement
(the "Pooling and Servicing Agreement"). Capitalized terms used but not
otherwise defined herein shall have the meanings set forth in the Pooling and
Servicing Agreement.

         The Trustee has made no independent examination of any documents
contained in each Mortgage File beyond the review specifically required in the
Pooling and Servicing Agreement. The Trustee makes no representations as to (i)
the validity, legality, sufficiency, enforceability or genuineness of any of the
documents contained in the Mortgage File pertaining to the Mortgage Loans
identified on the Mortgage Loan Schedule, (ii) the collectability, insurability,
effectiveness or suitability of any such Mortgage Loan or (iii) whether any
Mortgage File included any of the documents specified in clause (vi) of Section
2.01 of the Pooling and Servicing Agreement.

                                      C-1-1

<PAGE>

                  Capitalized words and phrases used herein shall have the
respective meanings assigned to them in the Pooling and Servicing Agreement.
This Certificate is qualified in all respects by the terms of said Pooling and
Servicing Agreement.

                                               U.S. BANK NATIONAL ASSOCIATION

                                               By:______________________________
                                               Name:
                                               Title:

                                      C-1-2

<PAGE>

                                   EXHIBIT C-2
                                   -----------

                      FORM OF TRUSTEE'S FINAL CERTIFICATION

                                                       [Date]

Mortgage Asset Securitization Transactions, Inc.
1285 Avenue of the Americas
New York, New York 10019

Chase Manhattan Mortgage Corporation
10790 Rancho Bernardo Road
San Diego, California 82127

                  Re:      Pooling and Servicing Agreement, dated as of
                           September 1, 2003, among Mortgage Asset
                           Securitization Transactions, Inc., Chase Manhattan
                           Mortgage Corporation and U.S. Bank National
                           Association, Mortgage Pass-Through Certificates,
                           Series 2003-WMC2
                           --------------------------------------------------

Ladies and Gentlemen:

         In accordance with Section 2.02 of the Pooling and Servicing Agreement,
the undersigned, as Trustee, hereby certifies that as to each Mortgage Loan
listed in the Mortgage Loan Schedule (other than any Mortgage loan paid in full
or listed on Schedule I hereto) it (or its custodian) has received the
applicable documents listed in Section 2.01 of the Pooling and Servicing
Agreement.

         The undersigned hereby certifies that as to each Mortgage Loan
identified on the Mortgage Loan Schedule, other than any Mortgage Loan listed on
Schedule I hereto, it has reviewed the documents listed above and has determined
that each such document appears to be complete and, based on an examination of
such documents, the information set forth in the Mortgage Loan Schedule is
correct.

         The Trustee has made no independent examination of any documents
contained in each Mortgage File beyond the review specifically required in the
Pooling and Servicing Agreement. The Trustee makes no representations as to (i)
the validity, legality, sufficiency, enforceability or genuineness of any of the
documents contained in the Mortgage File pertaining to the Mortgage Loans
identified on the Mortgage Loan Schedule, (ii) the collectability, insurability,
effectiveness or suitability of any such Mortgage Loan or (iii) whether any
Mortgage File included any of the documents specified in clause (vi) of Section
2.01 of the Pooling and Servicing Agreement.

                                      C-2-1

<PAGE>

                  Capitalized words and phrases used herein shall have the
respective meanings assigned to them in the Pooling and Servicing Agreement.
This Certificate is qualified in all respects by the terms of said Pooling and
Servicing Agreement.

                                                U.S. BANK NATIONAL ASSOCIATION

                                                By:_____________________________
                                                Name:
                                                Title:

                                      C-2-2

<PAGE>

                                   EXHIBIT C-3

                        FORM OF RECEIPT OF MORTGAGE NOTE

Mortgage Asset Securitization Transactions, Inc.
1285 Avenue of the Americas
New York, New York 10019

Chase Manhattan Mortgage Corporation
10790 Rancho Bernardo Road
San Diego, California 82127

                  Re:      Pooling and Servicing Agreement, dated as of
                           September 1, 2003, among Mortgage Asset
                           Securitization Transactions, Inc., Chase Manhattan
                           Mortgage Corporation and U.S. Bank National
                           Association, Mortgage Pass-Through Certificates,
                           Series 2003-WMC2
                           ----------------

Ladies and Gentlemen:

         Pursuant to Section 2.01 of the Pooling and Servicing Agreement, dated
as of September 1, 2003, among Mortgage Asset Securitization Transactions, Inc.
as Depositor, Chase Manhattan Mortgage Corporation as Servicer and U.S. Bank
National Association. as Trustee (the "Trustee"), we hereby acknowledge the
receipt of the original Mortgage Notes (a copy of which is attached hereto as
Exhibit 1) with any exceptions thereto listed on Exhibit 2.

                                        U.S. BANK NATIONAL ASSOCIATION,
                                        as Trustee

                                        By:_______________________________
                                        Name:
                                        Title:

                                      C-2-3

<PAGE>

                                    EXHIBIT D
                                    ---------

                    FORM OF MORTGAGE LOAN PURCHASE AGREEMENT

                                       D-1

<PAGE>

                        MORTGAGE LOAN PURCHASE AGREEMENT

                  This is a Mortgage Loan Purchase Agreement (this "Agreement"),
dated September 25, 2003, among UBS Warburg Real Estate Securities Inc., a
Delaware corporation (the "Seller"), Mortgage Asset Securitization Transactions,
Inc., a Delaware corporation (the "Purchaser") and WMC Mortgage Corp., a
California corporation (the "Originator").

                              Preliminary Statement
                              ---------------------

                  The Seller intends to sell the Mortgage Loans (as hereinafter
identified) and the Cap Contract to the Purchaser on the terms and subject to
the conditions set forth in this Agreement. The Purchaser intends to deposit the
Mortgage Loans into a mortgage pool comprising the Trust Fund. The Trust Fund
will be evidenced by a single series of mortgage pass-through certificates
designated as Series 2003-WMC2 (the "Certificates"). The Certificates will
consist of twelve classes of certificates. The Certificates will be issued
pursuant to a Pooling and Servicing Agreement for Series 2003-WMC2, dated as of
September 1, 2003 (the "Pooling and Servicing Agreement"), among the Depositor
as depositor, Chase Manhattan Mortgage Corporation as servicer (in such
capacity, the "Servicer") and U.S. Bank National Association as trustee (the
"Trustee"). Capitalized terms used but not defined herein shall have the
meanings set forth in the Pooling and Servicing Agreement.

                  The parties hereto agree as follows:

                  SECTION 1. AGREEMENT TO PURCHASE. The Seller agrees to sell
and the Purchaser agrees to purchase, on or before September 30, 2003 (the
"Closing Date"), certain fixed-rate and adjustable-rate conventional, one- to
four-family, residential mortgage loans (the "Mortgage Loans"), having an
aggregate principal balance as of the close of business on September 1, 2003,
(the "Cut-off Date") of approximately $1,058,249,162.56 (the "Closing Balance"),
after giving effect to all payments due on the Mortgage Loans on or before the
Cut-off Date, whether or not received including the right to any Prepayment
Charges payable by the related Mortgagors in connection with any Principal
Prepayments on the Mortgage Loans.

                  SECTION 2. MORTGAGE LOAN SCHEDULE. The Purchaser and the
Seller have agreed upon which of the mortgage loans owned by the Seller are to
be purchased by the Purchaser pursuant to this Agreement and the Seller will
prepare or cause to be prepared on or prior to the Closing Date a final schedule
(the "Closing Schedule") that shall describe such Mortgage Loans and set forth
all of the Mortgage Loans to be purchased under this Agreement, including the
Prepayment Charges. The Closing Schedule will conform to the requirements set
forth in this Agreement and to the definitions of "Mortgage Loan Schedule" and
"Prepayment Charge Schedule" under the Pooling and Servicing Agreement, it being
understood that for purposes of this Agreement, "Mortgage Loan Schedule" shall
refer to the schedule delivered by the Originator to the Seller. The Closing
Schedule shall be used as the Mortgage Loan Schedule and Prepayment Charge
Schedule under the Pooling and Servicing Agreement.

<PAGE>

                  SECTION 3. CONSIDERATION.

                  (a) In consideration for the Mortgage Loans to be purchased
hereunder, the Purchaser shall, as described in Section 8, pay to or upon the
order of the Seller in immediately available funds an amount (the "Mortgage Loan
Purchase Price") equal to the net sale proceeds of the Certificates.

                  (b) The Purchaser or any assignee, transferee or designee of
the Purchaser shall be entitled to all scheduled payments of principal due after
the Cut-off Date, all other payments of principal due and collected after the
Cut-off Date, and all payments of interest on the Mortgage Loans allocable to
the period after the Cut-off Date. All scheduled payments of principal and
interest due on or before the Cut-off Date and collected after the Cut-off Date
shall belong to the Seller.

                  (c) Pursuant to the Pooling and Servicing Agreement, the
Purchaser will assign all of its right, title and interest in and to the
Mortgage Loans, together with its rights under this Agreement, to the Trustee
for the benefit of the Certificateholders.

                  SECTION 4. TRANSFER OF THE MORTGAGE LOANS.

                  (a) POSSESSION OF MORTGAGE FILES. The Seller does hereby sell,
         transfer, assign, set over and convey to the Purchaser, without
         recourse but subject to the terms of this Agreement, all of its right,
         title and interest in, to and under the Mortgage Loans, including the
         related Prepayment Charges. The contents of each Mortgage File not
         delivered to the Purchaser or to any assignee, transferee or designee
         of the Purchaser on or prior to the Closing Date are and shall be held
         in trust by the Seller for the benefit of the Purchaser or any
         assignee, transferee or designee of the Purchaser. Upon the sale of the
         Mortgage Loans, the ownership of each Mortgage Note, the related
         Mortgage and the other contents of the related Mortgage File is vested
         in the Purchaser and the ownership of all records and documents with
         respect to the related Mortgage Loan prepared by or that come into the
         possession of the Seller on or after the Closing Date shall immediately
         vest in the Purchaser and shall be delivered immediately to the
         Purchaser or as otherwise directed by the Purchaser.

                  (b) DELIVERY OF MORTGAGE LOAN DOCUMENTS. The Seller will, on
         or prior to the Closing Date, deliver or cause to be delivered to the
         Purchaser or any assignee, transferee or designee of the Purchaser each
         of the following documents for each Mortgage Loan:

                  (i) the original Mortgage Note, endorsed in blank or in the
         following form: "Pay to the order of U.S. Bank National Association, as
         Trustee under the applicable agreement, without recourse," with all
         prior and intervening endorsements showing a complete chain of
         endorsement from the originator to the Person so endorsing to the
         Trustee;

                  (ii) the original Mortgage, noting the presence of the MIN of
         the Mortgage Loan and language indicating that the Mortgage Loan is a
         MOM Loan if the Mortgage Loan is a MOM Loan, with evidence of recording
         thereon, and the original recorded power of attorney, if the Mortgage
         was executed pursuant to a power of attorney, with evidence of
         recording thereon;

                                       -2-

<PAGE>

                  (iii) unless the Mortgage Loan is registered on the MERS(R)
         System, an original Assignment in blank;

                  (iv) the original recorded Assignment or Assignments showing a
         complete chain of assignment from the originator to the Person
         assigning the Mortgage to the Trustee as contemplated by the
         immediately preceding clause (iii);

                  (v) the original or copies of each assumption, modification,
         written assurance or substitution agreement, if any; and

                  (vi) the original lender's title insurance policy, together
         with all endorsements or riders that were issued with or subsequent to
         the issuance of such policy, insuring the priority of the Mortgage as a
         first lien on the Mortgaged Property represented therein as a fee
         interest vested in the Mortgagor, or in the event such original title
         policy is unavailable, a written commitment or uniform binder or
         preliminary report of title issued by the title insurance or escrow
         company.

                  With respect to a maximum of approximately 2.0% of the
Mortgage Loans, by outstanding principal balance of the Mortgage Loans as of the
Cut-off Date, if any original Mortgage Note referred to in Section 4(b)(i) above
cannot be located, the obligations of the Seller to deliver such documents shall
be deemed to be satisfied upon delivery to the Purchaser of a photocopy of such
Mortgage Note, if available, with a lost note affidavit substantially in the
form of Exhibit I to the Pooling and Servicing Agreement. If any of the original
Mortgage Notes for which a lost note affidavit was delivered to the Purchaser is
subsequently located, such original Mortgage Note shall be delivered to the
Purchaser within three Business Days.

                  Except with respect to any Mortgage Loan for which MERS is
identified on the Mortgage or on a properly recorded assignment of the Mortgage
as the mortgagee of record, the Originator promptly shall (within sixty Business
Days following the later of the Closing Date and the date of receipt by the
Originator of the recording information for a Mortgage, but in no event later
than ninety days following the Closing Date) submit or cause to be submitted for
recording, at no expense to the Purchaser, in the appropriate public office for
real property records, each Assignment referred to in Section 4(b)(iii) and (iv)
above and in connection therewith, the Originator shall execute each original
Assignment in the following form: "U.S. Bank National Association, as Trustee
under the applicable agreement." In the event that any such Assignment is lost
or returned unrecorded because of a defect therein, the Originator shall
promptly prepare or cause to be prepared a substitute Assignment or cure or
cause to be cured such defect, as the case may be, and thereafter cause each
such Assignment to be duly recorded. Notwithstanding the foregoing, to the
extent that the Originator has performed the duties with the respect to any
Mortgage Loan referenced in this paragraph in connection with the transfer of
such Mortgage Loan to the Seller, references to the Originator in this paragraph
shall be deemed to be references to the Seller.

                  In connection with the assignment of any Mortgage Loan
registered on the MERS(R) System, the Originator further agrees that it will
cause, within 30 Business Days after the Closing Date, the MERS(R) System to
indicate that such Mortgage Loans have been assigned by the Purchaser to the
Trustee in accordance with the Pooling and Servicing Agreement for the benefit
of the

                                       -3-

<PAGE>

Certificateholders by including in such computer files (a) the code in the field
which identifies the specific Trustee and (b) the code in the field "Pool Field"
which identifies the series of the Certificates issued in connection with such
Mortgage Loans. Notwithstanding the foregoing, the Originator shall not be
responsible for the expense of more than one transfer on the MERS(R) System at
the direction of the Seller or the Purchaser.

                  If any of the documents referred to in Sections 4(b)(ii),
(iii) or (iv) above has, as of the Closing Date, been submitted for recording
but either (x) has not been returned from the applicable public recording office
or (y) has been lost or such public recording office has retained the original
of such document, the obligations of the Seller to deliver such documents shall
be deemed to be satisfied upon (1) delivery to the Purchaser of a copy of each
such document certified by the Originator in the case of (x) above or the
applicable public recording office in the case of (y) above to be a true and
complete copy of the original that was submitted for recording and (2) if such
copy is certified by the Originator, delivery to the Purchaser promptly upon
receipt thereof of either the original or a copy of such document certified by
the applicable public recording office to be a true and complete copy of the
original. The Originator shall provide notice to the Seller and the Seller shall
provide such notice to the Trustee and the Rating Agencies if delivery pursuant
to clause (2) above will be made more than 180 days after the Closing Date.

                  If the original lender's title insurance policy was not
delivered pursuant to Section 4(b)(vi) above, the Seller shall deliver or cause
to be delivered to the Purchaser, promptly after receipt thereof, the original
lender's title insurance policy. The Seller shall deliver or cause to be
delivered to the Purchaser promptly upon receipt thereof any other original
documents constituting a part of a Mortgage File received with respect to any
Mortgage Loan, including, but not limited to, any original documents evidencing
an assumption or modification of any Mortgage Loan.

                  Each original document relating to a Mortgage Loan which is
not delivered to the Purchaser or its assignee, transferee or designee, if held
by the Seller, shall be so held for the benefit of the Purchaser, its assignee,
transferee or designee.

                  (c) ACCEPTANCE OF MORTGAGE LOANS. The documents delivered
pursuant to Section 4(b) hereof shall be reviewed by the Purchaser or any
assignee, transferee or designee of the Purchaser at any time before or after
the Closing Date (and with respect to each document permitted to be delivered
after the Closing Date, within seven days of its delivery) to ascertain that all
required documents have been executed and received and that such documents
relate to the Mortgage Loans identified on the Mortgage Loan Schedule.

                  (d) TRANSFER OF INTEREST IN AGREEMENTS. The Purchaser has the
right to assign its interest under this Agreement, in whole or in part, to the
Trustee, as may be required to effect the purposes of the Pooling and Servicing
Agreement, without the consent of the Seller, and the assignee shall succeed to
the rights and obligations hereunder of the Purchaser. Any expense reasonably
incurred by or on behalf of the Purchaser or the Trustee in connection with
enforcing any obligations of the Seller under this Agreement will be promptly
reimbursed by the Seller.

                  (e) EXAMINATION OF MORTGAGE FILES. Prior to the Closing Date,
the Seller shall either (i) deliver in escrow to the Purchaser, or to any
assignee, transferee or designee of the

                                       -4-

<PAGE>

Purchaser for examination, the Mortgage File pertaining to each Mortgage Loan or
(ii) make such Mortgage Files available to the Purchaser or to any assignee,
transferee or designee of the Purchaser for examination. Such examination may be
made by the Purchaser or the Trustee, and their respective designees, upon
reasonable notice to the Seller during normal business hours before the Closing
Date and within 60 days after the Closing Date. If any such person makes such
examination prior to the Closing Date and identifies any Mortgage Loans that do
not conform to the requirements of the Purchaser as described in this Agreement,
such Mortgage Loans shall be deleted from the Closing Schedule. The Purchaser
may, at its option and without notice to the Seller, purchase all or part of the
Mortgage Loans without conducting any partial or complete examination. The fact
that the Purchaser or any person has conducted or has failed to conduct any
partial or complete examination of the Mortgage Files shall not affect the
rights of the Purchaser or any assignee, transferee or designee of the Purchaser
to demand repurchase or other relief as provided herein or under the Pooling and
Servicing Agreement.

                  SECTION 5. REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE
                             SELLER AND THE ORIGINATOR.

                  (a) The Seller hereby represents and warrants to the
Originator and the Purchaser, as of the date hereof and as of the Closing Date,
and covenants, that:

                  (i) The Seller is duly organized, validly existing and in good
standing as a corporation under the laws of the State of Delaware with full
corporate power and authority to conduct its business as presently conducted by
it to the extent material to the consummation of the transactions contemplated
herein. The Seller has the full corporate power and authority to own the
Mortgage Loans and to transfer and convey the Mortgage Loans to the Purchaser
and has the full corporate power and authority to execute and deliver, engage in
the transactions contemplated by, and perform and observe the terms and
conditions of this Agreement.

                  (ii) The Seller has duly authorized the execution, delivery
and performance of this Agreement, has duly executed and delivered this
Agreement, and this Agreement, assuming due authorization, execution and
delivery by the Originator and the Purchaser, constitutes a legal, valid and
binding obligation of the Seller, enforceable against it in accordance with its
terms except as the enforceability thereof may be limited by bankruptcy,
insolvency or reorganization or by general principles of equity.

                  (iii) The execution, delivery and performance of this
Agreement by the Seller (x) does not conflict and will not conflict with, does
not breach and will not result in a breach of and does not constitute and will
not constitute a default (or an event, which with notice or lapse of time or
both, would constitute a default) under (A) any terms or provisions of the
articles of incorporation or by-laws of the Seller, (B) any term or provision of
any material agreement, contract, instrument or indenture, to which the Seller
is a party or by which the Seller or any of its property is bound or (C) any
law, rule, regulation, order, judgment, writ, injunction or decree of any court
or governmental authority having jurisdiction over the Seller or any of its
property and (y) does not create or impose and will not result in the creation
or imposition of any lien, charge or encumbrance which would have a material
adverse effect upon the Mortgage Loans or any documents or instruments
evidencing or securing the Mortgage Loans.

                                       -5-

<PAGE>

                  (iv) No consent, approval, authorization or order of,
registration or filing with, or notice on behalf of the Seller to any
governmental authority or court is required, under federal laws or the laws of
the State of Delaware, for the execution, delivery and performance by the Seller
of, or compliance by the Seller with, this Agreement or the consummation by the
Seller of any other transaction contemplated hereby and by the Pooling and
Servicing Agreement; provided, however, that the Seller makes no representation
or warranty regarding federal or state securities laws in connection with the
sale or distribution of the Certificates.

                  (v) This Agreement does not contain any untrue statement of
material fact or omit to state a material fact necessary to make the statements
contained herein not misleading. The written statements, reports and other
documents prepared and furnished or to be prepared and furnished by the Seller
pursuant to this Agreement or in connection with the transactions contemplated
hereby taken in the aggregate do not contain any untrue statement of material
fact or omit to state a material fact necessary to make the statements contained
therein not misleading.

                  (vi) The Seller is not in violation of, and the execution and
delivery of this Agreement by the Seller and its performance and compliance with
the terms of this Agreement will not constitute a violation with respect to, any
order or decree of any court or any order or regulation of any federal, state,
municipal or governmental agency having jurisdiction over the Seller or its
assets, which violation might have consequences that would materially and
adversely affect the condition (financial or otherwise) or the operation of the
Seller or its assets or might have consequences that would materially and
adversely affect the performance of its obligations and duties hereunder.

                  (vii) The Seller does not believe, nor does it have any reason
or cause to believe, that it cannot perform each and every covenant contained in
this Agreement.

                  (viii) Immediately prior to the sale of the Mortgage Loans to
the Purchaser as herein contemplated, the Seller will be the owner of the
related Mortgage and the indebtedness evidenced by the related Mortgage Note,
and, upon the payment to the Seller of the Mortgage Loan Purchase Price, the
Purchaser shall have good and marketable title to each Mortgage Loan, each
related Mortgage Note and the related Mortgage Files with respect thereto free
and clear of all liens, pledges, charges, claims security interests,
participations and other encumbrances.

                  (ix) There are no actions or proceedings against, or
investigations known to it of, the Seller before any court, administrative or
other tribunal (A) that might prohibit its entering into this Agreement, (B)
seeking to prevent the sale of the Mortgage Loans by the Seller or the
consummation of the transactions contemplated by this Agreement or (C) that
might prohibit or materially and adversely affect the performance by the Seller
of its obligations under, or validity or enforceability of, this Agreement.

                  (x) The consummation of the transactions contemplated by this
Agreement are in the ordinary course of business of the Seller, and the
transfer, assignment and conveyance of the Mortgage Notes and the Mortgages by
the Seller are not subject to the bulk transfer or any similar statutory
provisions.

                                       -6-

<PAGE>

                  (xi) The Seller has not dealt with any broker, investment
banker, agent or other person, except for the Purchaser or any of its
affiliates, that may be entitled to any commission or compensation in connection
with the sale of the Mortgage Loans (except that an entity that previously
financed the Seller's ownership of the Mortgage Loans may be entitled to a fee
to release its security interest in the Mortgage Loans, which fee shall have
been paid and which security interest shall have been released on or prior to
the Closing Date).

                  (xii) There is no litigation currently pending or, to the best
of the Seller's knowledge without independent investigation, threatened against
the Seller that would reasonably be expected to adversely affect the transfer of
the Mortgage Loans, the issuance of the Certificates or the execution, delivery,
performance or enforceability of this Agreement, or that would result in a
material adverse change in the financial condition of the Seller.

                  (xiii) As of the Closing Date, the Seller has no knowledge of
any circumstances or condition with respect to the Mortgaged Property, the
Mortgagor, the Mortgagor's credit standing or the Mortgage that can reasonably
be expected to cause the Mortgage Loan to be an unacceptable investment, cause
the Mortgage Loan to become delinquent, or adversely affect the value of the
Mortgage Loan.

                  (xiv) As of the Closing Date, the Mortgaged Property is
lawfully occupied under applicable law; all inspections, licenses and
certificates required to be made or issued with respect to all occupied portions
of the Mortgaged Property and, with respect to the use and occupancy of the
same, including but not limited to certificates of occupancy, have been made or
obtained from the appropriate authorities.

                  (xv) As of the Closing Date, the Mortgaged Property is in
compliance with all applicable environmental laws pertaining to environmental
hazards including, without limitation, asbestos, and neither the Originator nor
any related seller of the Mortgage Loan nor, to the Originator's knowledge and
the knowledge of any related seller of the Mortgage Loan, the related Mortgagor,
has received any notice of any violation or potential violation of such law.

                  (xvi) As of the Closing Date, there are no delinquent taxes,
ground rents, water charges, sewer rents, assessments, insurance premiums,
leasehold payments, including assessments payable in future installments or
other outstanding charges affecting the related Mortgaged Property.

                  (xvii) To the best knowledge of the Seller, each Mortgage Loan
at the time it was made complied in all material respects with applicable local,
state, and federal laws, including, but not limited to, all applicable predatory
and abusive lending laws.

                  (xviii) None of the mortgage loans are (i) "High Cost" as such
term is defined in HOEPA or (ii) a reasonably equivalent provision as defined by
the applicable predatory and abusive lending laws.

                  (b) The Originator hereby represents and warrants to the
Seller and the Purchaser, as of the date hereof and as of the Closing Date, and
covenants, that:

                                       -7-

<PAGE>

                  (i) The Originator is a corporation duly organized and validly
existing under the laws of California. The Originator has all licenses necessary
to carry out its business as now being conducted, and is licensed and qualified
to transact business in and is in good standing under the laws of each state in
which any Mortgaged Property is located or is otherwise exempt under applicable
law from such licensing or qualification or is otherwise not required under
applicable law to effect such licensing or qualification and no demand for such
licensing or qualification has been made upon the Originator by any such state,
and in any event the Originator is in compliance with the laws of any such state
to the extent necessary to ensure the enforceability of each Mortgage Loan. No
licenses or approvals obtained by the Originator have been suspended or revoked
by any court, administrative agency, arbitrator or governmental body and no
proceedings are pending which might result in such suspension or revocation,
which is reasonably likely to have a material adverse effect on any Mortgage
Loan (including the Seller's interest therein) or is reasonable likely to have a
material adverse effect on the transactions contemplated by this Agreement;

                  (ii) The Originator has the full power and authority and legal
right to hold, transfer and convey each Mortgage Loan, to sell each Mortgage
Loan and to execute, deliver and perform, and to enter into and consummate all
transactions contemplated by this Agreement and to conduct its business as
presently conducted; the Originator has duly authorized the execution, delivery
and performance of this Agreement and any agreements contemplated hereby, has
duly executed and delivered this Agreement, and any agreements contemplated
hereby, and this Agreement and each Assignment of Mortgage to the Seller and any
agreements contemplated hereby, constitute the legal, valid and binding
obligations of the Originator, enforceable against it in accordance with their
respective terms, except as such enforceability may be limited by bankruptcy,
insolvency, moratorium, reorganization and similar laws, and by equitable
principles affecting the enforceability of the rights of creditors; and all
requisite corporate action has been taken by the Originator to make this
Agreement and all agreements contemplated hereby valid and binding upon the
Originator in accordance with their terms;

                  (iii) Neither the execution and delivery of this Agreement,
the sale of the Mortgage Loans to the Seller, the consummation of the
transactions contemplated hereby, nor the fulfillment of or compliance with the
terms and conditions of this Agreement will conflict with any of the terms,
conditions or provisions of the Originator's charter or by laws or materially
conflict with or result in a material breach of any of the terms, conditions or
provisions of any legal restriction or any agreement or instrument to which the
Originator is now a party or by which it is bound, or constitute a default or
result in an acceleration under any of the foregoing, or result in the material
violation of any law, rule, regulation, order, judgment or decree to which the
Originator or its property is subject;

                  (iv) There is no litigation, suit, proceeding or investigation
pending or, to the Originator's knowledge threatened, or any order or decree
outstanding, which is reasonably likely to have a material adverse effect on the
sale of the Mortgage Loans, the execution, delivery, performance or
enforceability of this Agreement, or which is reasonably likely to have a
material adverse effect on the financial condition of the Originator;

                  (v) No consent, approval, authorization or order of any court
or governmental agency or body is required for the execution, delivery and
performance by the Originator of or

                                       -8-

<PAGE>

compliance by the Originator with this Agreement, except for consents,
approvals, authorizations and orders which have been obtained;

                  (vi) The consummation of the transactions contemplated by this
Agreement are in the ordinary course of business of the Originator, and the
transfer, assignment and conveyance of the Mortgage Notes and the Mortgages by
the Originator pursuant to this Agreement are not subject to bulk transfer or
any similar statutory provisions in effect in any applicable jurisdiction;

                  (vii) The origination, servicing and collection practices with
respect to each Mortgage Note and Mortgage have been legal and in accordance
with applicable laws and regulations, and in all material respects in accordance
with Accepted Servicing Practices. The Originator further represents and
warrants that no escrow payments are required under the related Mortgage Loan
and no such payments are in the possession of, or under the control of, the
Originator or its delegate; no escrow deposits or other charges or payments due
under the Mortgage Note have been capitalized under any Mortgage or the related
Mortgage Note; all Mortgage Interest Rate adjustments have been made in strict
compliance with state and federal law and the terms of the related Mortgage
Note; and any interest required to be paid pursuant to state and local law has
been properly paid and credited;

                  (viii) The Originator has not used selection procedures that
identified the Mortgage Loans as being less desirable or valuable than other
comparable mortgage loans in the Originator's portfolio at the related Closing
Date;

                  (ix) [Reserved];

                  (x) The Originator is an approved seller of residential
mortgage loans for Fannie Mae or Freddie Mac and HUD. The Originator is duly
qualified, licensed, registered and otherwise authorized under all applicable
federal, state and local laws and regulations and is in good standing to sell
mortgage loans for Fannie Mae or Freddie Mac and no event has occurred which
would make the Originator unable to comply with eligibility requirements or
which would require notification to either Fannie Mae or Freddie Mac;

                  (xi) The Originator does not believe, nor does it have any
cause or reason to believe, that it cannot perform each and every covenant
contained in this Agreement applicable to it. The Originator is solvent and the
sale of the Mortgage Loans will not cause the Originator to become insolvent;

                  (xii) [Reserved];

                  (xiii) [Reserved];

                  (xiv) [Reserved];

                  (xv) The Originator has not dealt with any broker, investment
banker, agent or other person that may be entitled to any commission or
compensation in connection with the sale of the Mortgage Loans to the Seller;
and

                                       -9-

<PAGE>

                  (xvi) The Originator is a member of MERS in good standing, and
will comply in all material respects with the rules and procedures of MERS in
performing its obligations under the Agreement.

                  SECTION 6. REPRESENTATIONS AND WARRANTIES OF THE ORIGINATOR
                             RELATING TO THE MORTGAGE LOANS.

                  The Originator hereby represents and warrants to the Purchaser
that as to each Mortgage Loan as of the Closing Date:

                  (a) The information set forth in the Mortgage Loan Schedule,
including any diskette or other related data tapes, is true and correct in all
material respects;

                  (b) The Mortgage creates a (A) first lien and first priority
security interest with respect to each Mortgage Loan which is indicated by the
Originator to be a first lien (as reflected on the Mortgage Loan Schedule) or
(B) second lien and second priority security interest with respect to each
Mortgage Loan which is indicated by the Originator to be a second lien (as
reflected on the Mortgage Loan Schedule), in either case, in the related
Mortgaged Property securing the related Mortgage Note;

                  (c) None of the Mortgage Loans were 30 days or more delinquent
in their monthly payments as of April 30, 2003; the Originator has not advanced
funds, or induced, solicited or knowingly received any advance of funds from a
party other than the owner of the Mortgaged Property subject to the Mortgage,
directly or indirectly, for the payment of any amount required by the Mortgage
Loan; no payment with respect to each Mortgage Loan has been 30 days or more
delinquent during the preceding twelve-month period;

                  (d) All taxes, governmental assessments, insurance premiums,
water, sewer and municipal charges, leasehold payments or ground rents which
previously became due and owing have been paid;

                  (e) The terms of the Mortgage Note and the Mortgage have not
been impaired, waived, altered or modified in any respect, except by written
instruments which have been recorded to the extent any such recordation is
required by law. No instrument of waiver, alteration or modification has been
executed, and no Mortgagor has been released, in whole or in part, from the
terms thereof except in connection with an assumption agreement and which
assumption agreement is part of the Mortgage File and the terms of which are
reflected in the related Mortgage Loan Schedule; the substance of any such
waiver, alteration or modification has been approved by the issuer of the title
insurance policy, to the extent required by the related policy;

                  (f) The Mortgage Note and the Mortgage are not subject to any
valid right of rescission, set off, counterclaim or defense, including, without
limitation, the defense of usury, nor will the operation of any of the terms of
the Mortgage Note or the Mortgage, or the exercise of any right thereunder,
render the Mortgage Note or Mortgage unenforceable, in whole or in part, or
subject to any valid right of rescission, set off, counterclaim or defense,
including the defense of usury, and no such right of rescission, set off,
counterclaim or defense has been asserted with respect

                                      -10-

<PAGE>

thereto; and the Mortgagor was not a debtor in any state or federal bankruptcy
or insolvency proceeding at the time the Mortgage Loan was originated;

                  (g) All buildings or other customarily insured improvements
upon the Mortgaged Property are insured by a Qualified Insurer against loss by
fire and hazards of extended coverage, in an amount representing coverage not
less than the lesser of (i) the maximum insurable value of the improvements
securing such Mortgage Loans, and (ii) the greater of (a) either (1) the
outstanding principal balance of the Mortgage Loan with respect to each Mortgage
Loan which is indicated by the Originator to be a first lien (as reflected on
the Mortgage Loan Schedule) or (2) with respect to each second lien Mortgage
Loan, the sum of the outstanding principal balance of the first lien on such
Mortgage Loan and the outstanding principal balance of such second lien Mortgage
Loan, and (b) an amount such that the proceeds thereof shall be sufficient to
prevent the Mortgagor and/or the mortgagee from becoming a co-insurer, but in no
event greater than the maximum amount permitted under applicable law. All such
standard hazard policies are in full force and effect and on the date of
origination contained a standard mortgagee clause naming the Originator and its
successors in interest and assigns as loss payee and such clause is still in
effect and all premiums due thereon have been paid. If required by the Flood
Disaster Protection Act of 1973, as amended, the Mortgage Loan is covered by a
flood insurance policy meeting the requirements of the current guidelines of the
Federal Insurance Administration, in an amount not less than the amount required
by the Flood Disaster Protection Act of 1973, as amended. Such policy was issued
by a Qualified Insurer. The Mortgage obligates the Mortgagor thereunder to
maintain all such insurance at the Mortgagor's cost and expense, and upon the
Mortgagor's failure to do so, authorizes the holder of the Mortgage to maintain
such insurance at the Mortgagor's cost and expense and to seek reimbursement
therefor from the Mortgagor;

                  (h) Any and all requirements of any federal, state or local
law including, without limitation, usury, truth in lending, real estate
settlement procedures, consumer credit protection, equal credit opportunity,
fair housing, or disclosure laws applicable to the Mortgage Loan have been
complied with in all material respects;

                  (i) The Mortgage has not been satisfied, canceled or
subordinated (other than the subordination of any second lien Mortgage Loan to
the related first lien), in whole or in part, or rescinded, and the Mortgaged
Property has not been released from the lien of the Mortgage, in whole or in
part nor has any instrument been executed that would effect any such release,
cancellation, subordination or rescission. The Originator has not waived the
performance by the Mortgagor of any action, if the Mortgagor's failure to
perform such action would cause the Mortgage Loan to be in default, nor has the
Originator waived any default resulting from any action or inaction by the
Mortgagor;

                  (j) The related Mortgage is a valid, subsisting, enforceable
and perfected (A) first lien and first priority security interest with respect
to each Mortgage Loan which is indicated by the Originator to be a first lien
(as reflected on the Mortgage Loan Schedule), or (B) second lien and second
priority security interest with respect to each Mortgage Loan which is indicated
by the Originator to be a second lien Mortgage Loan (as reflected on the
Mortgage Loan Schedule), in either case, on the Mortgaged Property including all
buildings on the Mortgaged Property and all installations and mechanical,
electrical, plumbing, heating and air conditioning systems affixed to

                                      -11-

<PAGE>

such buildings, and all additions, alterations and replacements consisting of
real property or fixtures made at any time with respect to the foregoing
securing the Mortgage Note's original principal balance. Such lien is free and
clear of all adverse claims, liens and encumbrances having priority over the
first lien of the Mortgage subject only to (1) the lien of non delinquent
current real property taxes and assessments not yet due and payable, (2)
covenants, conditions and restrictions, rights of way, easements and other
matters of the public record as of the date of recording which are acceptable to
mortgage lending institutions generally and either (A) which are referred to or
otherwise considered in the appraisal made for the originator of the Mortgage
Loan, or (B) which do not adversely affect the appraised value of the Mortgaged
Property as set forth in such appraisal, (3) other matters which are disclosed
in the applicable title commitment or policy, or to which like properties are
commonly subject which do not materially interfere with the benefits of the
security intended to be provided by the Mortgage or the use, enjoyment, value or
marketability of the related Mortgaged Property and (4) with respect to each
Mortgage Loan which is indicated by the Originator to be a second lien Mortgage
Loan (as reflected on the Mortgage Loan Schedule) a first lien on the Mortgaged
Property. Any security agreement, chattel mortgage or equivalent document
related to and delivered in connection with the Mortgage Loan establishes and
creates a valid, subsisting, enforceable and perfected (A) first lien and first
priority security interest with respect to each Mortgage Loan which is indicated
by the Originator to be a first lien (as reflected on the Mortgage Loan
Schedule), or (B) second lien and second priority security interest with respect
to each Mortgage Loan which is indicated by the Originator to be a second lien
Mortgage Loan (as reflected on the Mortgage Loan Schedule), in either case, on
the property described therein;

                  (k) The Mortgage Note and the related Mortgage are original
and genuine and each is the legal, valid and binding obligation of the maker
thereof, enforceable in all respects in accordance with its terms subject to
bankruptcy, insolvency, moratorium, reorganization and other laws of general
application affecting the rights of creditors and by general equitable
principles and the Originator has taken all action necessary to transfer such
rights of enforceability to the Seller. All parties to the Mortgage Note and the
Mortgage had the legal capacity to enter into the Mortgage Loan and to execute
and deliver the Mortgage Note and the Mortgage. The Mortgage Note and the
Mortgage have been duly and properly executed by such parties. No fraud, error,
misrepresentation, gross negligence or similar occurrence with respect to a
Mortgage Loan has taken place on the part of the Originator or the Mortgagor,
or, on the part of any other party involved in the origination of the Mortgage
Loan. The proceeds of the Mortgage Loan have been fully disbursed and there is
no requirement for future advances thereunder, and any and all requirements as
to completion of any on site or off site improvements and as to disbursements of
any escrow funds therefor have been complied with. All costs, fees and expenses
incurred in making or closing the Mortgage Loan and the recording of the
Mortgage were paid or are in the process of being paid, and the Mortgagor is not
entitled to any refund of any amounts paid or due under the Mortgage Note or
Mortgage;

                  (l) Either the Mortgagor is a natural person or the Mortgagor
is an inter-vivos trust acceptable to Fannie Mae. With respect to each
inter-vivos trust, holding title to the Mortgaged Property in such trust will
not diminish any rights as a creditor including the right to full title to the
Mortgaged Property in the event foreclosure proceedings are initiated;

                  (m) Each Mortgage Loan is covered by an ALTA lender's title
insurance policy issued by a title insurer acceptable to Fannie Mae or Freddie
Mac and qualified to do business in the

                                      -12-

<PAGE>

jurisdiction where the Mortgaged Property is located, insuring (subject to the
exceptions contained in (j)(1), (2) and (3) above and, with respect to each
Mortgage Loan which is indicated by the Originator to be a second lien Mortgage
Loan (as reflected on the Mortgage Loan Schedule) clause (4)) the Originator,
its successors and assigns, as to the first (or, where applicable, second)
priority lien of the Mortgage in the original principal amount of the Mortgage
Loan and, with respect to each Adjustable Rate Mortgage Loan, against any loss
by reason of the invalidity or unenforceability of the lien resulting from the
provisions of the Mortgage providing for adjustment in the Mortgage Rate and
Monthly Payment. Additionally, such policy affirmatively insures ingress and
egress to and from the Mortgaged Property. Where required by applicable state
law or regulation, the Mortgagor has been given the opportunity to choose the
carrier of the required mortgage title insurance. The Originator, its successors
and assigns, are the sole insureds of such lender's title insurance policy. No
claims have been made under such lender's title insurance policy, and no prior
holder of the related Mortgage, including the Originator, has done, by act or
omission, anything which would impair the coverage of such lender's title
insurance policy;

                  (n) There is no default, breach, violation or event of
acceleration existing under the Mortgage or the related Mortgage Note and, to
the best of Originator's knowledge, no event which, with the passage of time or
with notice and the expiration of any grace or cure period, would constitute a
default, breach, violation or event permitting acceleration; and neither the
Originator nor any prior mortgagee has waived any default, breach, violation or
event permitting acceleration. With respect to each Mortgage Loan which is
indicated by the Originator to be a second lien Mortgage Loan (as reflected on
the Mortgage Loan Schedule) (i) the first lien is in full force and effect, (ii)
there is no default, breach, violation or event of acceleration existing under
such first lien mortgage or the related mortgage note, (iii) to the best of
Originator's knowledge, no event which, with the passage of time or with notice
and the expiration of any grace or cure period, would constitute a default,
breach, violation or event of acceleration thereunder, and either (A) the first
lien mortgage contains a provision which allows or (B) applicable law requires,
the mortgagee under the second lien Mortgage Loan to receive notice of, and
affords such mortgagee an opportunity to cure any default by payment in full or
otherwise under the first lien mortgage;

                  (o) There are no mechanics' or similar liens or claims which
have been filed for work, labor or material (and no rights are outstanding that
under law could give rise to such liens) affecting the related Mortgaged
Property which are or may be liens prior to or equal to the lien of the related
Mortgage, unless insured against by the related title insurance policy;

                  (p) All improvements subject to the Mortgage which were
considered in determining the Appraised Value of the Mortgaged Property lie
wholly within the boundaries and building restriction lines of the Mortgaged
Property (and wholly within the project with respect to a condominium unit) and
no improvements on adjoining properties encroach upon the Mortgaged Property
except those which are insured against by the title insurance policy referred to
in clause (m) above and all improvements on the property comply un all material
respects with all applicable zoning and subdivision laws and ordinances;

                  (q) The Mortgage Loan was originated by the Originator or a
third-party originator and sold to the Originator. The Mortgage Loan complies
with all the terms, conditions and requirements of the Originator's Underwriting
Standards in effect at the time of origination of

                                      -13-

<PAGE>

such Mortgage Loan, subject to exceptions thereto made in the ordinary course of
business. The Mortgage Notes and Mortgages (exclusive of any riders) are on
forms generally acceptable to Fannie Mae or Freddie Mac. The Mortgage Loan bears
interest at the Mortgage Rate set forth in the related Mortgage Loan Schedule,
and Monthly Payments under the Mortgage Note are due and payable on the first
day of each month (subject to any grace period set forth in the Mortgage Note).
The Mortgage contains the usual and enforceable provisions of the originator at
the time of origination for the acceleration of the payment of the unpaid
principal amount of the Mortgage Loan if the related Mortgaged Property is sold
without the prior consent of the mortgagee thereunder, subject to bankruptcy,
insolvency, moratorium, reorganization and other laws of general application
affecting the rights of creditors and by general equitable principles;

                  (r) The Mortgaged Property is not subject to any material
damage by waste, fire, earthquake, windstorm, flood or other casualty. At
origination of the Mortgage Loan there was, and there currently is, no
proceeding pending or scheduled for the total or partial condemnation of the
Mortgaged Property;

                  (s) The related Mortgage contains customary and enforceable
provisions such as to render the rights and remedies of the holder thereof
adequate for the realization against the Mortgaged Property of the benefits of
the security provided thereby. There is no homestead or other exemption
available to the Mortgagor which would interfere with the right to sell the
Mortgaged Property at a trustee's sale or the right to foreclose the Mortgage;

                  (t) If the Mortgage constitutes a deed of trust, a trustee,
authorized and duly qualified if required under applicable law to act as such,
has been properly designated and currently so serves and is named in the
Mortgage, and no fees or expenses are or will become payable by the Seller to
the trustee under the deed of trust, except in connection with a trustee's sale
or attempted sale after default by the Mortgagor;

                  (u) The Mortgage File contains an appraisal of the related
Mortgaged Property signed prior to the final approval of the mortgage loan
application by a Qualified Appraiser, who had no interest, direct or indirect,
in the Mortgaged Property or in any loan made on the security thereof, and whose
compensation is not affected by the approval or disapproval of the Mortgage
Loan, and the appraisal and appraiser both satisfy the requirements of Fannie
Mae or Freddie Mac and Title XI of the Financial Institutions Reform, Recovery,
and Enforcement Act of 1989 and the regulations promulgated thereunder, all as
in effect on the date the Mortgage Loan was originated;

                  (v) Each of the Originator, any third-party originator, any
servicer and any intervening mortgagee which have had any interest in the
Mortgage, whether as mortgagee, assignee or otherwise, are (or, during the
period in which they held and disposed of such interest, were) (A) in compliance
with any and all applicable licensing requirements of the laws of the state
wherein the Mortgaged Property is located, and (B) (1) organized under the laws
of such state, or (2) qualified to do business in such state, or (3) federal
savings and loan associations or national banks or a Federal Home Loan Bank or
savings bank having principal offices in such state, or (4) not doing business
in such state or (5) not required to be so qualified;

                                      -14-

<PAGE>

                  (w) The related Mortgage Note is not and has not been secured
by any collateral except the lien of the corresponding Mortgage and the security
interest of any applicable security agreement or chattel mortgage referred to in
(j) above;

                  (x) The Mortgagor has received all disclosure materials
required by applicable law with respect to the making of such mortgage loans;

                  (y) The Mortgage Loan does not contain "graduated payment"
features and does not have a shared appreciation or other contingent interest
feature; no Mortgage Loan contains any buydown provisions;

                  (z) The Mortgagor is not in bankruptcy;

                  (aa) Principal payments on the Mortgage Loan commenced no more
than sixty (60) days after the funds were disbursed in connection with the
Mortgage Loan. The Mortgage Loans have an original term to maturity of not more
than 30 years, with interest payable in arrears on the first day of each month.
Each Mortgage Note, other than with respect to a Balloon Mortgage Loan, requires
a monthly payment which is sufficient to fully amortize the original principal
balance over the original term thereof and to pay interest at the related
Mortgage Rate. With respect to each Balloon Mortgage Loan, the Mortgage Note
requires a monthly payment which is sufficient to fully amortize the original
principal balance over the original term thereof and to pay interest at the
related Mortgage Rate and requires a final Monthly Payment substantially greater
than the preceding monthly payment which is sufficient to repay the remained
unpaid principal balance of the Balloon Mortgage Loan as the Due Date of such
monthly payment. No Mortgage Loan contains terms or provisions which would
result in negative amortization;

                  (bb) No Mortgage Loan is subject to a lender-paid mortgage
insurance policy;

                  (cc) As to any Mortgage Loan which is not a MERS Mortgage
Loan, the Assignment of Mortgage is in recordable form and is acceptable for
recording under the laws of the jurisdiction in which the Mortgaged Property is
located;

                  (dd) The Mortgaged Property is located in the state identified
in the related Mortgage Loan Schedule and consists of a single parcel of real
property with a detached single family residence erected thereon, or a
townhouse, or a two-to four-family dwelling, or an individual condominium unit
in a condominium project, or an individual unit in a planned unit development or
a DE MINIMIS planned unit development, provided, however, that no residence or
dwelling is a single parcel of real property with a cooperative housing
corporation erected thereon, or a mobile home. As of the date of origination, no
portion of the Mortgaged Property was used for commercial purposes (other than a
DE MINIMIS use), and since the date or origination no portion of the Mortgaged
Property has been used for commercial purposes (other than a DE MINIMIS use);

                  (ee) Except as set forth on the Mortgage Loan Schedule, none
of the Mortgage Loans are subject to a Prepayment Penalty. For any Mortgage Loan
subject to a Prepayment Penalty, the Mortgage Loan Schedule accurately sets
forth the term and amount of such Prepayment Penalty;

                                      -15-

<PAGE>

                  (ff) The Mortgaged Property is lawfully occupied under
applicable law, and all inspections, licenses and certificates required to be
made or issued with respect to all occupied portions of the Mortgaged Property
and, with respect to the use and occupancy of the same, including but not
limited to certificates of occupancy and fire underwriting certificates, have
been made or obtained from the appropriate authorities;

                  (gg) If the Mortgaged Property is a condominium unit or a
planned unit development (other than a DE MINIMIS planned unit development), or
stock in a cooperative housing corporation, such condominium, cooperative or
planned unit development project meets the eligibility requirements of Fannie
Mae and Freddie Mac;

                  (hh) There is no pending action or proceeding directly
involving the Mortgaged Property in which compliance with any environmental law,
rule or regulation is an issue; the Originator has received no notice of any
violation of any environmental law, rule or regulation with respect to the
Mortgaged Property;

                  (ii) The Mortgagor has not notified the Originator requesting
relief under the Soldiers' and Sailors' Civil Relief Act of 1940, and the
Originator has no knowledge of any relief requested or allowed to the Mortgagor
under the Soldiers' and Sailors' Civil Relief Act of 1940;

                  (jj) As of the related Closing Date, no Mortgage Loan was in
construction or rehabilitation status or has facilitated the trade-in or
exchange of a Mortgaged Property;

                  (kk) No action has been taken or failed to be taken on or
prior to the related Closing Date which has resulted or will result in an
exclusion from, denial of, or defense to coverage under any insurance policy
related to a Mortgage Loan (including, without limitation, any exclusions,
denials or defenses which would limit or reduce the availability of the timely
payment of the full amount of the loss otherwise due thereunder to the insured)
whether arising out of actions, representations, errors, omissions, negligence,
or fraud, or for any other reason under such coverage;

                  (ll) Except with respect to each Mortgage Loan identified on
the Mortgage Loan Schedule as a correspondent loan, the Mortgage Loan was
originated by a mortgagee approved by the Secretary of Housing and Urban
Development pursuant to sections 203 and 211 of the National Housing Act, a
savings and loan association, a savings bank, a commercial bank, credit union,
insurance Originator or similar institution which is supervised and examined by
a federal or state authority. With respect to each Mortgage Loan identified on
the Mortgage Loan Schedule as a correspondent loan, the Mortgage Loan was
re-underwritten by the Originator prior to Originator's purchase thereof;

                  (mm) Unless otherwise set forth on the related Mortgage Loan
Schedule, no Mortgaged Property is subject to a ground lease. With respect to
each ground lease to which the Mortgaged Property is subject (a "Ground Lease"):
(i) the Mortgagor is the owner of a valid and subsisting interest as tenant
under the Ground Lease; (ii) the Ground Lease is in full force and effect,
unmodified and not supplemented by any writing or otherwise; (iii) all rent,
additional rent and other charges reserved therein have been paid to the extent
they are payable to the date hereof; (iv) the Mortgagor enjoys the quiet and
peaceful possession of the estate demised thereby, subject to any

                                      -16-

<PAGE>

sublease; (v) the Mortgagor is not in default under any of the terms thereof and
there are no circumstances which, with the passage of time or the giving of
notice or both, would constitute an event of default thereunder; (vii) the
lessor under the Ground Lease is not in default under any of the terms or
provisions thereof on the part of the lessor to be observed or performed; (vii)
the lessor under the Ground Lease has satisfied all of its repair or
construction obligations, if any, to date pursuant to the terms of the Ground
Lease; and (ix) the execution, delivery and performance of the Mortgage do not
require the consent (other than those consents which have been obtained and are
in full force and effect) under, and will not contravene any provision of or
cause a default under, the Ground Lease;

                  (nn) With respect to any broker fees collected and paid on any
of the Mortgage Loans, all broker fees have been properly assessed to the
Mortgagor and no claims will arise as to broker fees that are double charged and
for which the Mortgagor would be entitled to reimbursement;

                  (oo) With respect to any Mortgage Loan as to which an
affidavit has been delivered to the Seller certifying that the original Mortgage
Note has been lost or destroyed and not been replaced, if such Mortgage Loan is
subsequently in default, the enforcement of such Mortgage Loan will not be
materially adversely affected by the absence of the original Mortgage Note;

                  (pp) Each Mortgage Loan constitutes a qualified mortgage under
Section 860G(a)(3)(A) of the Code and Treasury Regulations Section
1.860G-2(a)(1);

                  (qq) [reserved];

                  (rr) [reserved];

                  (ss) [reserved];

                  (tt) No Mortgage Loan had a Loan-to-Value Ratio at the time of
origination of more than 100%;

                  (uu) No Mortgage Loan underlying the Certificates are subject
to, covered by, or in violation of, the Home Ownership and Equity Protection Act
of 1994 ("HOEPA") and no Mortgage Loan is in violation of any comparable state
law;

                  (vv) None of the proceeds of any Group I Mortgage Loan were
used to finance single-premium credit insurance policies;

                  (ww) Any principal advances made to the Mortgagor prior to the
related Closing Date have been consolidated with the outstanding principal
amount secured by the Mortgage, and the secured principal amount, as
consolidated, bears a single interest rate and single repayment term. The lien
of the Mortgage securing the consolidated principal amount is expressly insured
as having (A) first lien priority with respect to each Mortgage Loan which is
indicated by the Originator to be a first lien (as reflected on the Mortgage
Loan Schedule), or (B) second lien priority with respect to each Mortgage Loan
which is indicated by the Originator to be a second lien Mortgage Loan (as
reflected on the Mortgage Loan Schedule), in either case, by a title insurance
policy, an endorsement

                                      -17-

<PAGE>

to the policy insuring the mortgagee's consolidated interest or by other title
evidence acceptable to Fannie Mae and Freddie Mac. The consolidated principal
amount does not exceed the original principal amount of the Mortgage Loan;

                  (xx) Interest on each Mortgage Loan is calculated on the basis
of a 360-day year consisting of twelve 30-day months;

                  (yy) Except with respect to approximately 0.02% of the Group I
Mortgage Loans and approximately 0.04% of the Group II Mortgage Loans by
outstanding principal balance of each such group, no first lien Mortgage Loan is
a Balloon Mortgage Loan, no first lien Mortgage Loan is a Balloon Mortgage Loan;
Except with respect to approximately 99.64% of the Group I Mortgage Loans and
approximately 98.89% of the Group II Mortgage Loans by outstanding principal
balance of each such group, no second lien Mortgage Loan is a Balloon Mortgage
Loan;

                  (zz) With respect to each MERS Mortgage Loan, a MIN has been
assigned by MERS and such MIN is accurately provided on the related Mortgage
Loan Schedule. The related assignment of Mortgage to MERS has been duly and
properly recorded;

                  (aaa) With respect to each MERS Mortgage Loan, the Originator
has not received any notice of liens or legal actions with respect to such
Mortgage Loan and no such notices have been electronically posted by MERS;

                  (bbb) Any Mortgaged Property that is considered manufactured
housing shall be legally classified as real property, is permanently affixed to
a foundation and must assume the characteristics of site built housing and must
otherwise conform to the requirements (A) for inclusion in residential mortgage
backed securities transactions rated by Standard & Poor's and (B) of Fannie Mae
and Freddie Mac, including, but not limited to, the requirements that (i) the
related Mortgage Note or contract, as applicable, be secured by a "single family
residence" within the meaning of Section 25(e)(10) of the Code, (ii) the fair
market value of the manufactured home securing each related Mortgage Note or
contract, as applicable, was at least equal to 80% of the original principal
balance of such Mortgage Note or contract, as applicable, and (iii) each related
Mortgage Note or contract, as applicable, is a "qualified mortgage" under
Section 860G(a)(3) of the Code;

                  (ccc) With respect to each Mortgage Loan, the Originator or
its servicer (i) has fully furnished, in accordance with the Fair Credit
Reporting Act and its implementing regulations, accurate and complete
information (i.e., favorable and unfavorable) on the related Mortgagor credit
files to Equifax, Experian, and Trans Union Credit Information Company (three of
the credit repositories) and (ii) until the expiration of the Interim Servicing
Period, will fully furnish, in accordance with the Fair Credit Reporting Act and
its implementing regulations, accurate and complete information (i.e., favorable
and unfavorable) on the related Mortgagor credit files to Equifax, Experian, and
Trans Union Credit Information Company (three of the credit repositories);

                  (ddd) The Originator has complied with all applicable
anti-money laundering laws and regulations, including without limitation the USA
Patriot Act of 2001 to the extent applicable to the Originator (collectively,
the "Anti-Money Laundering Laws");

                                      -18-

<PAGE>

                  (eee) No Mortgage Loan originated on or after October 1, 2002
and before March 7, 2003 is secured by a Mortgaged Property located in the State
of Georgia; and no Mortgage Loan originated on or after March 7, 2003 is a "high
cost home loan" as defined under the Georgia Fair Lending Act;

                  (fff) With respect to each Mortgage Loan which is a second
lien Mortgage Loan (i) if the related first lien provides for negative
amortization, the LTV was calculated at the maximum principal balance of such
first lien that could result upon application of such negative amortization
feature, and (ii) either no consent for the Mortgage Loan is required by the
holder of the first lien or such consent has been obtained and is contained in
the Mortgage File;

                  (ggg) No Group I Mortgage Loan originated before October 1,
2002 has a Prepayment Charge term longer than five years after its origination
and no Group I Mortgage Loan originated on or after October 1, 2002 has a
Prepayment Charge term longer than three years after its origination;

                  (hhh) Each Group I Mortgage Loan is in compliance with the
anti predatory lending eligibility for purchase requirements of Fannie Mae's
Selling Guide (this representation and warranty shall be construed only to mean
that none of the representations and warranties specified in clauses (iii)
through (ppp) below have been breached);

                  (iii) No borrower was encouraged or required to select a Group
I Mortgage Loan product of the same documentation type offered by the Originator
which is a higher cost product designed for less creditworthy borrowers, unless
at the time of the Group I Mortgage Loan's origination, such borrower did not
qualify taking into account credit history and debt to income ratios for a lower
cost credit product then offered by the Originator or any affiliate of the
Originator. If, at the time of loan application, the borrower may have qualified
for a for a lower cost credit product of the same documentation type then
offered by any mortgage lending affiliate of the Originator, the Originator
referred the borrower's application to such affiliate for underwriting
consideration;

                  (jjj) The methodology used in underwriting the extension of
credit for each Group I Mortgage Loan employs objective mathematical principles
which relate the borrower's income, assets and liabilities to the proposed
payment and such underwriting methodology does not rely on the extent of the
borrower's equity in the collateral as the principal determining factor in
approving such credit extension. Such underwriting methodology is designed to
determine, among other things, that at the time of origination the borrower had
a reasonable ability to make timely payments on the Group I Mortgage Loan;

                  (kkk) With respect to any Group I Mortgage Loan that contains
a provision permitting imposition of a premium upon a prepayment prior to
maturity: (i) prior to such Group I Mortgage Loan's origination, the borrower
agreed to such premium in exchange for a monetary benefit (i.e., such Group I
Mortgage Loan would have been more costly (including but not limited to a rate
or fee increase) if it did not contain such prepayment premium) (ii) prior to
such Mortgage Loan's origination, the borrower was offered the option of
obtaining a Mortgage Loan that did not require payment of such a premium;
provided, that such offer may have been evidenced by the Originator's rate
sheet/pricing grid relating to such Group I Mortgage Loan, which provided that
the

                                      -19-

<PAGE>

Group I Mortgage Loan had a full prepayment premium buy out pricing adjustment
available; and (iii) the prepayment premium is disclosed to the borrower in the
loan documents pursuant to applicable state and federal law;

                  (lll) No borrower was required to purchase any credit life,
disability, accident or health insurance product as a condition of obtaining the
extension of credit. No borrower obtained a prepaid single premium credit life,
disability, accident or health insurance policy in connection with the
origination of the Group I Mortgage Loan;

                  (mmm) [reserved];

                  (nnn) All fees and charges (including finance charges) and
whether or not financed, assessed, collected or to be collected in connection
with the origination and servicing of each Group I Mortgage Loan has been
disclosed in writing to the borrower in accordance with applicable state and
federal law and regulation;

                  (ooo) No Mortgage Loan (a) is secured by property located in
the State of New York; (b) had an original principal balance of $300,000 or
less, and (c) has an application date on or after April 1, 2003, the terms of
which loan equal or exceed either the APR or the points and fees threshold for
"high cost home loans," as defined in Section 6 L of the New York State Banking
Law;

                  (ppp) The information set forth in the Prepayment Charge
Schedule (including the Prepayment Charge Summary attached thereto) is complete,
true and correct in all material respects on the date or dates when such
information is furnished and each Prepayment Charge is permissible, enforceable
and collectible in accordance with its terms (except to the extent that the
enforceability or collectibility thereof may be limited by bankruptcy,
insolvency, moratorium, receivership and other similar laws affecting creditor's
rights generally) under all applicable federal, state and local laws. Each
Prepayment Penalty was originated in compliance with all applicable federal,
state and local laws;

                  (qqq) Each Mortgage Loan at the time it was made complied in
all material respects with applicable local, state, and federal laws, including,
but not limited to, all applicable predatory and abusive lending laws;

                  (rrr) None of the Mortgage Loans are classified as a (a) "high
cost" loan under the HOEPA, (b) "High Cost Home Loan" as defined in New York
Banking Law 6-1, (c) "high-cost home loan" as defined in Kentucky HB 287 or (d)
"high cost", "predatory" or "threshold" loan under any other applicable federal,
state or local law, including any predatory or abusive lending laws, and no
Mortgage Loan is in violation of any state law or ordinance similar to HOEPA;

         (sss) (a) No Group I Mortgage Loan underlying the Certificates is
classified as a high cost mortgage loan under HOEPA; and (b) no Group I Mortgage
Loan in the trust is a "high cost home," "covered," "high risk home" or
"predatory" loan under any other applicable state, federal or local law (or a
similarly classified loan using different terminology under a law imposing
heightened regulatory scrutiny or additional legal liability for residential
mortgage loans having high interest rates, points and/or fees);

                                      -20-

<PAGE>

                  SECTION 7. REPURCHASE OBLIGATION FOR DEFECTIVE DOCUMENTATION
                             AND FOR BREACH OF REPRESENTATION AND WARRANTY.

                  (a) The representations and warranties contained in Section 6
shall not be impaired by any review and examination of loan files or other
documents evidencing or relating to the Mortgage Loans or any failure on the
part of the Seller or the Purchaser to review or examine such documents and
shall inure to the benefit of any assignee, transferee or designee of the
Purchaser, including the Trustee for the benefit of holders of the Certificates.

                  Upon discovery by the Seller, the Purchaser or any assignee,
transferee or designee of the Purchaser of any materially defective document in,
or that any material document was not transferred by the Seller (as listed on
the Trustee's Initial Certification) as part of any Mortgage File, or of a
breach of any of the representations and warranties contained in Section 6 that
materially and adversely affects the value of any Mortgage Loan or the interest
therein of the Purchaser or the Purchaser's assignee, transferee or designee,
the party discovering such breach shall give prompt written notice to the
Originator and the Seller; provided, that a breach of the representations and
warranties made in Section 6(uu), (vv), (eee), (ggg) and (sss) shall be deemed
to materially and adversely affects the value of any Mortgage Loan or the
interest therein of the Certificateholders. Within sixty (60) days of its
discovery or its receipt of notice of any such missing documentation that was
not transferred by the Seller as described above, or of materially defective
documentation, or of any such breach of a representation and warranty, the
Originator or the Seller, as applicable, promptly shall deliver such missing
document or cure such defect or breach in all material respects or, in the event
the Originator or the Seller, as applicable, cannot deliver such missing
document or cannot cure such defect or breach, the Originator or the Seller, as
applicable, shall, within ninety (90) days of its discovery or receipt of
notice, either (i) repurchase the affected Mortgage Loan at the Purchase Price
(as defined in the Pooling and Servicing Agreement) or (ii) pursuant to the
provisions of the Pooling and Servicing Agreement, cause the removal of such
Mortgage Loan from the Trust Fund and substitute one or more Qualified
Substitute Mortgage Loans. The Originator or the Seller, as applicable, shall
amend the Closing Schedule to reflect the withdrawal of such Mortgage Loan from
the terms of this Agreement and the Pooling and Servicing Agreement. The
Originator or the Seller, as applicable, shall deliver to the Purchaser such
amended Closing Schedule and shall deliver such other documents as are required
by this Agreement or the Pooling and Servicing Agreement within five (5) days of
any such amendment. Any repurchase pursuant to this Section 7(a) shall be
accomplished by transfer to an account designated by the Purchaser of the amount
of the Purchase Price in accordance with Section 2.03 of the Pooling and
Servicing Agreement. Any repurchase required by this Section shall be made in a
manner consistent with Section 2.03 of the Pooling and Servicing Agreement.

                  Notwithstanding the foregoing, to the extent a representation
or warranty of the Seller regarding the Mortgage Loans has been breached and the
circumstance constituting the breach also constitutes a breach of a like
representation or warranty given by the Originator as of an earlier date, the
Purchaser's remedy hereunder shall be solely against the Originator and not the
Seller.

                  Notwithstanding the foregoing, within 90 days of the earlier
of discovery by the Originator or receipt of notice by the Originator of the
breach of the representation of the Originator set forth in Section 6(ppp) above
which materially and adversely affects the interests of the Holders

                                      -21-

<PAGE>

of the Class P Certificates in any Prepayment Charge, the Originator shall pay
the amount of the scheduled Prepayment Charge, for the benefit of the Holders of
the Class P Certificates by remitting such amount to the Servicer for deposit
into the Collection Account, net of any amount previously collected by the
Servicer or paid by the Servicer, for the benefit of the Holders of the Class P
Certificates in respect of such Prepayment Charge.

                  (b) It is understood and agreed that the obligations of the
Originator or the Seller, as applicable, set forth in this Section 7 to cure or
repurchase a defective Mortgage Loan constitute the sole remedies of the
Purchaser against the Originator or the Seller, as applicable, respecting a
missing document or a breach of the representations and warranties contained in
Section 6.

                  SECTION 8. CLOSING; PAYMENT FOR THE MORTGAGE LOANS. The
closing of the purchase and sale of the Mortgage Loans shall be held at the New
York City office of Thacher Proffitt & Wood at 10:00 a.m. New York City time on
the Closing Date.

                  The closing shall be subject to each of the following
conditions:

                  (a) All of the representations and warranties of the Seller
         under this Agreement shall be true and correct in all material respects
         as of the date as of which they are made and no event shall have
         occurred which, with notice or the passage of time, would constitute a
         default under this Agreement;

                  (b) All of the representations and warranties of the
         Originator under this Agreement shall be true and correct in all
         material respects as of the date as of which they are made and no event
         shall have occurred which, with notice or the passage of time, would
         constitute a default under this Agreement;

                  (c) The Purchaser shall have received, or the attorneys of the
         Purchaser shall have received in escrow (to be released from escrow at
         the time of closing), all Closing Documents as specified in Section 9
         of this Agreement, in such forms as are agreed upon and acceptable to
         the Purchaser, duly executed by all signatories other than the
         Purchaser as required pursuant to the respective terms thereof;

                  (d) The Seller shall have delivered or caused to be delivered
         and released to the Purchaser or to its designee, all documents
         (including without limitation, the Mortgage Loans) required to be so
         delivered by the Purchaser pursuant to Section 2.01 of the Pooling and
         Servicing Agreement; and

                  (e) All other terms and conditions of this Agreement and the
         Pooling and Servicing Agreement shall have been complied with.

                  Subject to the foregoing conditions, the Purchaser shall
deliver or cause to be delivered to the Seller on the Closing Date, against
delivery and release by the Seller to the Trustee of all documents required
pursuant to the Pooling and Servicing Agreement, the Mortgage Loan Purchase
Price for the Mortgage Loans as specified in Section 3 of this Agreement.

                                      -22-

<PAGE>

                  SECTION 9. CLOSING DOCUMENTS. Without limiting the generality
of Section 8 hereof, the closing shall be subject to delivery of each of the
following documents:

                  (a) A Secretary's Certificate of the Seller, dated the Closing
         Date, in form satisfactory to and upon which the Originator, the
         Purchaser and UBS Warburg LLC (the "Underwriter") may rely, and
         attached thereto copies of the certificate of incorporation, by- laws
         and certificate of good standing of the Seller under the laws of
         Delaware;

                  (b) An Opinion of Counsel of the Seller, dated the Closing
         Date, in form satisfactory to and addressed to the Underwriter;

                  (c) An Officer's Certificate of the Originator, dated the
         Closing Date, in form satisfactory to and upon which the Seller, the
         Purchaser and the Underwriter may rely, and attached thereto copies of
         the certificate of incorporation, by-laws and certificate of good
         standing of the Originator under the laws of its state of
         incorporation;

                  (d) An opinion of Counsel of the Originator, dated the Closing
         Date, in form satisfactory to and addressed to the Underwriter;

                  (e) Such opinions of counsel as the Rating Agencies or the
         Trustee may request in connection with the sale of the Mortgage Loans
         by the Seller to the Purchaser or the Seller's execution and delivery
         of, or performance under, this Agreement;

                  (f) A letter from Deloitte & Touche, certified public
         accountants, to the effect that they have performed certain specified
         procedures as a result of which they determined that certain
         information of an accounting, financial or statistical nature set forth
         in the Prospectus Supplement contained under the captions
         "Summary--Mortgage Loans," "Risk Factors," (to the extent of
         information concerning the Mortgage Loans contained therein) and
         "Description of the Mortgage Loans" agrees with the records of the
         Originator;

                  (g) Such further information, certificates, opinions and
         documents as the Purchaser or the Underwriter may reasonably request.

                  SECTION 10. COSTS. The Seller shall pay (or shall reimburse
the Purchaser or any other Person to the extent that the Purchaser or such other
Person shall pay) the fees and expenses of the Seller's accountants and
attorneys and the costs and expenses incurred in connection with obtaining the
documents referred to in Sections 9(a), 9(b), 9(e) and 9(f), the costs and
expenses of printing (or otherwise reproducing) and delivering this Agreement,
the Pooling and Servicing Agreement, the Certificates, the prospectus and
Prospectus Supplement, and any private placement memorandum relating to the
Certificates and other related documents, the initial fees, costs and expenses
of the Trustee, the fees and expenses of the Purchaser's counsel in connection
with the preparation of all documents relating to the securitization of the
Mortgage Loans, the filing fee charged by the Securities and Exchange Commission
for registration of the Certificates and the fees charged by any rating agency
to rate the Certificates. All other costs and expenses in connection with the
transactions contemplated hereunder shall be borne by the party incurring such
expense.

                                      -23-

<PAGE>

                  SECTION 11. [RESERVED].

                  SECTION 12. INDEMNIFICATION. The Originator shall indemnify
and hold harmless each of (i) the Purchaser, (ii) the Underwriter, (iii) the
Person, if any, to which the Purchaser assigns its rights in and to a Mortgage
Loan and each of their respective successors and assigns and (iv) each person,
if any, who controls the Purchaser within the meaning of Section 15 of the
Securities Act of 1933, as amended (the "1933 Act") ((i) through (iv)
collectively, the "Indemnified Party") against any and all losses, claims,
expenses, damages or liabilities to which the Indemnified Party may become
subject, under the 1933 Act or otherwise, insofar as such losses, claims,
expenses, damages or liabilities (or actions in respect thereof) arise out of or
are based upon (a) any untrue statement or alleged untrue statement of any
material fact contained in the Prospectus Supplement under the caption "The
Originator--Underwriting Standards of the Originator" (such information, the
"WMC Information"), or the omission or the alleged omission by the Originator to
state therein the material fact necessary in order to make the statements
therein not misleading and, with respect to any private placement memorandum,
computational material, marketing material or any information provided by the
Underwriter to a purchaser of the Certificates, any information of a comparable
nature, or (ii) the data files containing information with respect to the
Mortgage Loans as transmitted by modem to the Purchaser by the Originator or any
of its affiliates (as such transmitted information may have been amended in
writing by the Originator or any of its affiliates with the written consent of
the Purchaser subsequent to such transmission) or any data that was correctly
and accurately derived therefrom (it being understood that the Originator shall
have no liability hereunder resulting from the aggregation or manipulation by
the Seller or any Affiliate thereof of information in the Prospectus Supplement
derived from information in the Mortgage Loan Schedule that is otherwise
accurate information) or (b) any representation, warranty or covenant made by
the Originator or any affiliate of the Originator herein, other than the
representations and warranties found in Section 6(hhh), (iii), (jjj), (kkk),
(lll), (mmm) and (nnn), on which the Purchaser has relied, being, or alleged to
be, untrue or incorrect; provided, however, that to the extent that any such
losses, claims, expenses, damages or liabilities to which the Indemnified Party
may become subject arise out of or are based upon both (1) statements,
omissions, representations, warranties or covenants of the Originator described
in clause (a) or (b) above and (2) any other factual basis, the Originator shall
indemnify and hold harmless the Indemnified Party only to the extent that the
losses, claims, expenses, damages, or liabilities of the person or persons
asserting the claim are determined to rise from or be based upon matters set
forth in clause (1) above and do not result from the gross negligence or willful
misconduct of such Indemnified Party. This indemnity shall be in addition to any
liability that the Originator may otherwise have.

                  SECTION 13. MANDATORY DELIVERY; GRANT OF SECURITY INTEREST.
The sale and delivery on the Closing Date of the Mortgage Loans described on the
Mortgage Loan Schedule in accordance with the terms and conditions of this
Agreement is mandatory. It is specifically understood and agreed that each
Mortgage Loan is unique and identifiable on the date hereof and that an award of
money damages would be insufficient to compensate the Purchaser for the losses
and damages incurred by the Purchaser in the event of the Seller's failure to
deliver the Mortgage Loans on or before the Closing Date. The Seller hereby
grants to the Purchaser a lien on and a continuing security interest in the
Seller's interest in each Mortgage Loan and each document and instrument
evidencing each such Mortgage Loan to secure the performance by the Seller of
its obligation hereunder, and the Seller agrees that it holds such Mortgage
Loans in custody for the Purchaser, subject to the

                                      -24-

<PAGE>

Purchaser's (i) right, prior to the Closing Date, to reject any Mortgage Loan to
the extent permitted by this Agreement, and (ii) obligation to deliver or cause
to be delivered the consideration for the Mortgage Loans pursuant to Section 8
hereof. Any Mortgage Loans rejected by the Purchaser shall concurrently
therewith be released from the security interest created hereby. All rights and
remedies of the Purchaser under this Agreement are distinct from, and cumulative
with, any other rights or remedies under this Agreement or afforded by law or
equity and all such rights and remedies may be exercised concurrently,
independently or successively.

                  Notwithstanding the foregoing, if on the Closing Date, each of
the conditions set forth in Section 8 hereof shall have been satisfied and the
Purchaser shall not have paid or caused to be paid the Mortgage Loan Purchase
Price, or any such condition shall not have been waived or satisfied and the
Purchaser determines not to pay or cause to be paid the Mortgage Loan Purchase
Price, the Purchaser shall immediately effect the re-delivery of the Mortgage
Loans, if delivery to the Purchaser has occurred, and the security interest
created by this Section 12 shall be deemed to have been released.

                  SECTION 14. NOTICES. All demands, notices and communications
hereunder shall be in writing and shall be deemed to have been duly given if
personally delivered to or mailed by registered mail, postage prepaid, or
transmitted by fax and, receipt of which is confirmed by telephone, if to the
Purchaser, addressed to the Purchaser at 1285 Avenue of the Americas, New York,
New York 10019, facsimile number (212) 713-7999, Attention: Glenn McIntyre, or
such other address as may hereafter be furnished to the Seller and the
Originator in writing by the Purchaser; if to the Seller, addressed to the
Seller at 1285 Avenue of the Americas, New York, New York 10019, facsimile
number (212) 713-7999, Attention: Glenn McIntyre, or to such other address as
the Seller may designate in writing to the Purchaser and the Originator; and if
to the Originator, addressed to WMC Mortgage Corp. at 6320 Canoga Avenue,
Woodland Hills, California 91367, facsimile number (818) 592-2605, Attention:
George Eshaghian, or such other address as may hereafter be furnished to the
Seller and the Purchaser in writing by the Originator.

                  SECTION 15. SEVERABILITY OF PROVISIONS. Any part, provision,
representation or warranty of this Agreement that is prohibited or that is held
to be void or unenforceable shall be ineffective to the extent of such
prohibition or unenforceability without invalidating the remaining provisions
hereof. Any part, provision, representation or warranty of this Agreement that
is prohibited or unenforceable or is held to be void or unenforceable in any
jurisdiction shall, as to such jurisdiction, be ineffective to the extent of
such prohibition or unenforceability without invalidating the remaining
provisions hereof, and any such prohibition or unenforceability in any
jurisdiction as to any Mortgage Loan shall not invalidate or render
unenforceable such provision in any other jurisdiction. To the extent permitted
by applicable law, the parties hereto waive any provision of law which prohibits
or renders void or unenforceable any provision hereof.

                  SECTION 16. AGREEMENT OF PARTIES. The Originator, the Seller
and the Purchaser each agree to execute and deliver such instruments and take
such actions as either of the others may, from time to time, reasonably request
in order to effectuate the purpose and to carry out the terms of this Agreement
and the Pooling and Servicing Agreement.

                                      -25-

<PAGE>

                  SECTION 17. SURVIVAL. (a) The Seller agrees that the
representations, warranties and agreements made by it herein and in any
certificate or other instrument delivered pursuant hereto shall be deemed to be
relied upon by the Purchaser, notwithstanding any investigation heretofore or
hereafter made by the Purchaser or on its behalf, and that the representations,
warranties and agreements made by the Seller herein or in any such certificate
or other instrument shall survive the delivery of and payment for the Mortgage
Loans and shall continue in full force and effect, notwithstanding any
restrictive or qualified endorsement on the Mortgage Notes and notwithstanding
subsequent termination of this Agreement, the Pooling and Servicing Agreement or
the Trust Fund. (b) the Originator agrees that the representations, warranties
and agreements made by it herein and in any certificate or other instrument
delivered pursuant hereto shall be deemed to be relied upon by the Seller and
the Purchaser notwithstanding any investigation heretofore or hereafter made by
the Seller or the Purchaser or on the behalf of either of them, and that the
representations, warranties and agreements made by the Originator herein or in
any such certificate shall continue in full force and effect, notwithstanding
subsequent termination of this Agreement, the Pooling and Servicing Agreement or
the Trust Fund.

                  SECTION 18. GOVERNING LAW. THIS AGREEMENT AND THE RIGHTS,
DUTIES, OBLIGATIONS AND RESPONSIBILITIES OF THE PARTIES HERETO SHALL BE GOVERNED
BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS (OTHER THAN THE CHOICE OF LAW
PROVISIONS THEREIN) AND DECISIONS OF THE STATE OF NEW YORK. THE PARTIES HERETO
INTEND THAT THE PROVISIONS OF SECTION 5-1401 OF THE NEW YORK GENERAL OBLIGATIONS
LAW SHALL APPLY TO THIS AGREEMENT.

                  SECTION 19. MISCELLANEOUS. This Agreement may be executed in
two or more counterparts, each of which when so executed and delivered shall be
an original, but all of which together shall constitute one and the same
instrument. This Agreement shall inure to the benefit of and be binding upon the
parties hereto and their respective successors and assigns. This Agreement
supersedes all prior agreements and understandings relating to the subject
matter hereof. Neither this Agreement nor any term hereof may be changed,
waived, discharged or terminated orally, but only by an instrument in writing
signed by the party against whom enforcement of the change, waiver, discharge or
termination is sought. The headings in this Agreement are for purposes of
reference only and shall not limit or otherwise affect the meaning hereof.

                  It is the express intent of the parties hereto that the
conveyance of the Mortgage Loans by the Seller to the Purchaser as provided in
Section 4 hereof be, and be construed as, a sale of the Mortgage Loans by the
Seller to the Purchaser and not as a pledge of the Mortgage Loans by the Seller
to the Purchaser to secure a debt or other obligation of the Seller. However, in
the event that, notwithstanding the aforementioned intent of the parties, the
Mortgage Loans are held to be property of the Seller, then (a) it is the express
intent of the parties that such conveyance be deemed a pledge of the Mortgage
Loans by the Seller to the Purchaser to secure a debt or other obligation of the
Seller and (b) (1) this Agreement shall also be deemed to be a security
agreement within the meaning of Articles 8 and 9 of the New York Uniform
Commercial Code; (2) the conveyance provided for in Section 4 hereof shall be
deemed to be a grant by the Seller to the Purchaser of a security interest in
all of the Seller's right, title and interest in and to the Mortgage Loans and
all amounts payable to the holders of the Mortgage Loans in accordance with the
terms thereof and all proceeds of the conversion, voluntary or involuntary, of
the foregoing into cash, instruments, securities or other

                                      -26-

<PAGE>

property, including without limitation all amounts, other than investment
earnings, from time to time held or invested in the Collection Account whether
in the form of cash, instruments, securities or other property; (3) the
possession by the Purchaser or its agent of Mortgage Notes, the related
Mortgages and such other items of property that constitute instruments, money,
negotiable documents or chattel paper shall be deemed to be "possession" by the
secured party for purposes of perfecting the security interest pursuant to the
New York Uniform Commercial Code; and (4) notifications to persons holding such
property and acknowledgments, receipts or confirmations from persons holding
such property shall be deemed notifications to, or acknowledgments, receipts or
confirmations from, financial intermediaries, bailees or agents (as applicable)
of the Purchaser for the purpose of perfecting such security interest under
applicable law. Any assignment of the interest of the Purchaser pursuant to
Section 4(d) hereof shall also be deemed to be an assignment of any security
interest created hereby. The Seller and the Purchaser shall, to the extent
consistent with this Agreement, take such actions as may be necessary to ensure
that, if this Agreement were deemed to create a security interest in the
Mortgage Loans, such security interest would be deemed to be a perfected
security interest of first priority under applicable law and will be maintained
as such throughout the term of this Agreement and the Pooling and Servicing
Agreement.

                  The NIMS Insurer, if any, shall be a third party beneficiary
hereof and may enforce the terms hereof as if a party hereto.

                                      -27-

<PAGE>

                  IN WITNESS WHEREOF, the Originator, the Purchaser and the
Seller have caused their names to be signed by their respective officers
thereunto duly authorized as of the date first above written.

                                        MORTGAGE ASSET SECURITIZATION
                                        TRANSACTIONS, INC.

                                        By:________________________________
                                        Name:
                                        Title:

                                        By:________________________________
                                        Name:
                                        Title:

                                        UBS WARBURG REAL ESTATE SECURITIES INC.

                                        By:________________________________
                                        Name:
                                        Title:

                                        By:________________________________
                                        Name:
                                        Title:

                                        WMC MORTGAGE CORP.

                                        By:________________________________
                                        Name:
                                        Title:

                                      -28-

<PAGE>

                                    EXHIBIT E
                                    ---------

                        REQUEST FOR RELEASE OF DOCUMENTS

To:      U.S. Bank National Association,
         180 East 5th Street
         St. Paul, Minnesota 55101

                  Re:      Pooling and Servicing Agreement, dated as of
                           September 1, 2003, among Mortgage Asset
                           Securitization Transactions, Inc., Chase Manhattan
                           Mortgage Corporation and U.S. Bank National
                           Association, Mortgage Pass-Through Certificates,
                           Series 2003- WMC2
                           -----------------

         In connection with the administration of the Mortgage Loans held by you
as Trustee pursuant to the above-captioned Pooling and Servicing Agreement, we
request the release, and hereby acknowledge receipt of the Trustee's Mortgage
File Or the Mortgage Loan described below, for the reason indicated.

Mortgage Loan Number:
--------------------

Mortgagor Name. Address & Zip Code:
----------------------------------

Reason for Requesting Documents (check one):
-------------------------------------------

         1. Mortgage Paid in Full

         2. Foreclosure

         3. Substitution

         4. Other Liquidation (Repurchases, etc.)

         5. Nonliquidation Reason:

Address to which Trustee should deliver the Trustee's Mortgage File:

                                      E-1-1

<PAGE>

                                By:__________________________________
                                         (authorized signer)

                                Issuer:__________________________________

                                Address:__________________________________

                                Date:__________________________________

Trustee
-------

U.S. Bank National Association
Please acknowledge the execution of the above request by your signature and date
below:

                                _____________________               ___________
                                Signature                           Date

                                Documents returned to Trustee:

                                _____________________               ___________
                                Trustee                             Date

                                      E-1-2

<PAGE>

                                   EXHIBIT F-1
                                   -----------

                    FORM OF TRANSFEROR REPRESENTATION LETTER

                                                         [Date]

U.S. Bank National Association 180 East 5th Street St. Paul, Minnesota 55101

                  Re:      MASTR Asset Backed Securities Trust, Series
                           2003-WMC2, Mortgage Pass-Through Certificates, Class
                           ___, representing a ___% Class ___ Percentage
                           Interest
                           --------

Ladies and Gentlemen:

                  In connection with the transfer by ________________ (the
"Transferor") to ________________ (the "Transferee") of the captioned mortgage
pass-through certificates (the "Certificates"), the Transferor hereby certifies
as follows:

                  Neither the Transferor nor anyone acting on its behalf has (a)
offered, pledged, sold, disposed of or otherwise transferred any Certificate,
any interest in any Certificate or any other similar security to any person in
any manner, (b) has solicited any offer to buy or to accept a pledge,
disposition or other transfer of any Certificate, any interest in any
Certificate or any other similar security from any person in any manner, (c) has
otherwise approached or negotiated with respect to any Certificate, any interest
in any Certificate or any other similar security with any person in any manner,
(d) has made any general solicitation by means of general advertising or in any
other manner, (e) has taken any other action, that (in the case of each of
subclauses (a) through (e) above) would constitute a distribution of the
Certificates under the Securities Act of 1933, as amended (the "1933 Act"), or
would render the disposition of any Certificate a violation of Section 5 of the
1933 Act or any state securities law or would require registration or
qualification pursuant thereto. The Transferor will not act, nor has it
authorized or will it authorize any person to act, in any manner set forth in
the foregoing sentence with respect to any Certificate. The Transferor will not
sell or otherwise transfer any of the Certificates, except in compliance with
the provisions of that certain Pooling and Servicing Agreement, dated as of
September 1, 2003, among Mortgage Asset Securitization Transactions, Inc. as
Depositor, Chase Manhattan Mortgage Corporation as Servicer and U.S. Bank
National Association as Trustee (the "Pooling and Servicing Agreement"),
pursuant to which Pooling and Servicing Agreement the Certificates were issued.

                                      F-1-1

<PAGE>

                  Capitalized terms used but not defined herein shall have the
meanings assigned thereto in the Pooling and Servicing Agreement.

                                                    Very truly yours,

                                                    [Transferor]

                                                    By:_________________________
                                                    Name:
                                                    Title:

                                      F-1-2

<PAGE>

                    FORM OF TRANSFEREE REPRESENTATION LETTER

                                                     [Date]

U.S. Bank National Association 180 East 5th Street St. Paul, Minnesota 55101

                  Re:      MASTR Asset Backed Securities Trust, Series
                           2003-WMC2, Mortgage Pass-Through Certificates, Class
                           ___, representing a ___% Class ___ Percentage
                           Interest
                           --------

Ladies and Gentlemen:

                  In connection with the purchase from ______________________
(the "Transferor") on the date hereof of the captioned trust certificates (the
"Certificates"), _______________ (the "Transferee") hereby certifies as follows:

                  1. The Transferee is a "qualified institutional buyer" as that
term is defined in Rule 144A ("Rule 144A") under the Securities Act of 1933 (the
"1933 Act") and has completed either of the forms of certification to that
effect attached hereto as Annex 1 or Annex 2. The Transferee is aware that the
sale to it is being made in reliance on Rule 144A. The Transferee is acquiring
the Certificates for its own account or for the account of a qualified
institutional buyer, and understands that such Certificate may be resold,
pledged or transferred only (i) to a person reasonably believed to be a
qualified institutional buyer that purchases for its own account or for the
account of a qualified institutional buyer to whom notice is given that the
resale, pledge or transfer is being made in reliance on Rule 144A, or (ii)
pursuant to another exemption from registration under the 1933 Act.

                  2. The Transferee has been furnished with all information
regarding (a) the Certificates and distributions thereon, (b) the nature,
performance and servicing of the Mortgage Loans, (c) the Pooling and Servicing
Agreement referred to below, and (d) any credit enhancement mechanism associated
with the Certificates, that it has requested.

                  All capitalized terms used but not otherwise defined herein
have the respective meanings assigned thereto in the Pooling and Servicing
Agreement, dated as of September 1, 2003, among Mortgage Asset Securitization
Transactions, Inc. as Depositor, Chase Manhattan Mortgage Corporation as
Servicer and U.S. Bank National Association as Trustee, pursuant to which the
Certificates were issued.

                                        [TRANSFEREE]

                                        By:__________________________
                                        Name:
                                        Title:

                                      F-1-3

<PAGE>

                                                          ANNEX 1 TO EXHIBIT F-1
                                                          ----------------------

            QUALIFIED INSTITUTIONAL BUYER STATUS UNDER SEC RULE 144A
            --------------------------------------------------------

          [For Transferees Other Than Registered Investment Companies]

                  The undersigned hereby certifies as follows to [name of
Transferor] (the "Transferor") and U.S. Bank National Association, as Trustee,
with respect to the mortgage pass-through certificates (the "Certificates")
described in the Transferee Certificate to which this certification relates and
to which this certification is an Annex:

                  1. As indicated below, the undersigned is the President, Chief
Financial Officer, Senior Vice President or other executive officer of the
entity purchasing the Certificates (the "Transferee").

                  2. In connection with purchases by the Transferee, the
Transferee is a "qualified institutional buyer" as that term is defined in Rule
144A under the Securities Act of 1933 ("Rule 144A") because (i) the Transferee
owned and/or invested on a discretionary basis $______________________1 in
securities (except for the excluded securities referred to below) as of the end
of the Transferee's most recent fiscal year (such amount being calculated in
accordance with Rule 144A) and (ii) the Transferee satisfies the criteria in the
category marked below.

         ___ CORPORATION, ETC. The Transferee is a corporation (other than a
bank, savings and loan association or similar institution), Massachusetts or
similar business trust, partnership, or any organization described in Section
501(c)(3) of the Internal Revenue Code of 1986.

         ___ BANK. The Transferee (a) is a national bank or banking institution
organized under the laws of any State, territory or the District of Columbia,
the business of which is substantially confined to banking and is supervised by
the State or territorial banking commission or similar official or is a foreign
bank or equivalent institution, and (b) has an audited net worth of at least
$25,000,000 as demonstrated in its latest annual financial statements, a copy of
which is attached hereto.

         ___ SAVINGS AND LOAN. The Transferee (a) is a savings and loan
association, building and loan association, cooperative bank, homestead
association or similar institution, which is supervised and examined by a State
or Federal authority having supervision over any such institutions or is a
foreign savings and loan association or equivalent institution and (b) has an
audited net worth of at least

         ___ BROKER-DEALER. The Transferee is a dealer registered pursuant to
Section 15 of the Securities Exchange Act of 1934.

--------

         1 Transferee must own and/or invest on a discretionary basis at least
$100,000,000 in securities unless Transferee is a dealer, and, in that case,
Transferee must own and/or invest on a discretionary basis at least $10,000,000
in securities. $25,000,000 as demonstrated in its latest annual financial
statements, A COPY OF WHICH IS ATTACHED HERETO.

                                      F-1-4

<PAGE>

         ___ INSURANCE COMPANY. The Transferee is an insurance company whose
primary and predominant business activity is the writing of insurance or the
reinsuring of risks underwritten by insurance companies and which is subject to
supervision by the insurance commissioner or a similar official or agency of a
State, territory or the District of Columbia.

         ___ STATE OR LOCAL PLAN. The Transferee is a plan established and
maintained by a State, its political subdivisions, or any agency or
instrumentality of the State or its political subdivisions, for the benefit of
its employees.

         ___ ERISA PLAN. The Transferee is an employee benefit plan within the
meaning of Title I of the Employee Retirement Income Security Act of 1974.

         ___ INVESTMENT ADVISOR. The Transferee is an investment advisor
registered under the Investment Advisers Act of 1940.

                  3. The term "SECURITIES" as used herein DOES NOT INCLUDE (i)
securities of issuers that are affiliated with the Transferee, (ii) securities
that are part of an unsold allotment to or subscription by the Transferee, if
the Transferee is a dealer, (iii) securities issued or guaranteed by the U.S. or
any instrumentality thereof, (iv) bank deposit notes and certificates of
deposit, (v) loan participations, (vi) repurchase agreements, (vii) securities
owned but subject to a repurchase agreement and (viii) currency, interest rate
and commodity swaps.

                  4. For purposes of determining the aggregate amount of
securities owned and/or invested on a discretionary basis by the Transferee, the
Transferee used the cost of such securities to the Transferee and did not
include any of the securities referred to in the preceding paragraph. Further,
in determining such aggregate amount, the Transferee may have included
securities owned by subsidiaries of the Transferee, but only if such
subsidiaries are consolidated with the Transferee in its financial statements
prepared in accordance with generally accepted accounting principles and if the
investments of such subsidiaries are managed under the Transferee's direction.
However, such securities were not included if the Transferee is a
majority-owned, consolidated subsidiary of another enterprise and the Transferee
is not itself a reporting company under the Securities Exchange Act of 1934.

                  5. The Transferee acknowledges that it is familiar with Rule
144A and understands that the Transferor and other parties related to the
Certificates are relying and will continue to rely on the statements made herein
because one or more sales to the Transferee may be in reliance on Rule 144A.

         ___      ___      Will the Transferee be purchasing the Certificates
         Yes      No       only for the Transferee's own account?

                  6. If the answer to the foregoing question is "no", the
Transferee agrees that, in connection with any purchase of securities sold to
the Transferee for the account of a third party (including any separate account)
in reliance on Rule 144A, the Transferee will only purchase for the account of a
third party that at the time is a "qualified institutional buyer" within the
meaning of Rule 144A. In addition, the Transferee agrees that the Transferee
will not purchase securities for a third

                                      F-1-5

<PAGE>

party unless the Transferee has obtained a current representation letter from
such third party or taken other appropriate steps contemplated by Rule 144A to
conclude that such third party independently meets the definition of "qualified
institutional buyer" set forth in Rule 144A.

                  7. The Transferee will notify each of the parties to which
this certification is made of any changes in the information and conclusions
herein. Until such notice is given, the Transferee's purchase of the
Certificates will constitute a reaffirmation of this certification as of the
date of such purchase. In addition, if the Transferee is a bank or savings and
loan as provided above, the Transferee agrees that it will furnish to such
parties updated annual financial statements promptly after they become
available.

Dated:

                                    ____________________________________
                                    Print Name of Transferee

                                    By:_________________________________
                                    Name:
                                    Title:

                                      F-1-6

<PAGE>

                                                          ANNEX 2 TO EXHIBIT F-1
                                                          ----------------------

            QUALIFIED INSTITUTIONAL BUYER STATUS UNDER SEC RULE 144A
            --------------------------------------------------------

           [For Transferees That Are Registered Investment Companies]

                  The undersigned hereby certifies as follows to [name of
Transferor] (the "Transferor") and U.S. Bank National Association, as Trustee,
with respect to the mortgage pass- through certificates (the "Certificates")
described in the Transferee Certificate to which this certification relates and
to which this certification is an Annex:

                  1. As indicated below, the undersigned is the President, Chief
Financial Officer or Senior Vice President of the entity purchasing the
Certificates (the "Transferee") or, if the Transferee is a "qualified
institutional buyer" as that term is defined in Rule 144A under the Securities
Act of 1933 ("Rule 144A") because the Transferee is part of a Family of
Investment Companies (as defined below), is such an officer of the investment
adviser (the "Adviser").

                  2. In connection with purchases by the Transferee, the
Transferee is a "qualified institutional buyer" as defined in Rule 144A because
(i) the Transferee is an investment company registered under the Investment
Company Act of 1940, and (ii) as marked below, the Transferee alone, or the
Transferee's Family of Investment Companies, owned at least $100,000,000 in
securities (other than the excluded securities referred to below) as of the end
of the Transferee's most recent fiscal year. For purposes of determining the
amount of securities owned by the Transferee or the Transferee's Family of
Investment Companies, the cost of such securities was used.

         ____     The Transferee owned $___________________ in securities (other
                  than the excluded securities referred to below) as of the end
                  of the Transferee's most recent fiscal year (such amount being
                  calculated in accordance with Rule 144A).

         ____     The Transferee is part of a Family of Investment Companies
                  which owned in the aggregate $______________ in securities
                  (other than the excluded securities referred to below) as of
                  the end of the Transferee's most recent fiscal year (such
                  amount being calculated in accordance with Rule 144A).

                  3. The term "FAMILY OF INVESTMENT COMPANIES" as used herein
means two or more registered investment companies (or series thereof) that have
the same investment adviser or investment advisers that are affiliated (by
virtue of being majority owned subsidiaries of the same parent or because one
investment adviser is a majority owned subsidiary of the other).

                  4. The term "SECURITIES" as used herein does not include (i)
securities of issuers that are affiliated with the Transferee or are part of the
Transferee's Family of Investment Companies, (ii) securities issued or
guaranteed by the U.S. or any instrumentality thereof, (iii) bank deposit notes
and certificates of deposit, (iv) loan participations, (v) repurchase
agreements, (vi) securities owned but subject to a repurchase agreement and
(vii) currency, interest rate and commodity swaps.

                                      F-1-7

<PAGE>

                  5. The Transferee is familiar with Rule 144A and understands
that the parties to which this certification is being made are relying and will
continue to rely on the statements made herein because one or more sales to the
Transferee will be in reliance on Rule 144A. In addition, the Transferee will
only purchase for the Transferee's own account.

                  6. The undersigned will notify the parties to which this
certification is made of any changes in the information and conclusions herein.
Until such notice, the Transferee's purchase of the Certificates will constitute
a reaffirmation of this certification by the undersigned as of the date of such
purchase.

Dated:

                                       ___________________________________
                                       Print Name of Transferee or Advisor

                                       By:________________________________
                                       Name:
                                       Title:

                                       IF AN ADVISER:

                                       ___________________________________
                                       Print Name of Transferee

                                      F-1-8

<PAGE>

                    FORM OF TRANSFEREE REPRESENTATION LETTER
                    ----------------------------------------

                  The undersigned hereby certifies on behalf of the purchaser
named below (the "Purchaser") as follows:

                  1. I am an executive officer of the Purchaser.

                  2. The Purchaser is a "qualified institutional buyer", as
defined in Rule 144A, ("Rule 144A") under the Securities Act of 1933, as
amended.

                  3. As of the date specified below (which is not earlier than
the last day of the Purchaser's most recent fiscal year), the amount of
"securities", computed for purposes of Rule 144A, owned and invested on a
discretionary basis by the Purchaser was in excess of $100,000,000.

                                              Name of Purchaser

                                              __________________________

                                              By:____________________________
                                              Name:
                                              Title:

Date of this certificate:

Date of information provided in paragraph 3

                                      F-1-9

<PAGE>

                                   EXHIBIT F-2
                                   -----------

                    FORM OF TRANSFER AFFIDAVIT AND AGREEMENT

STATE OF NEW YORK                   )

COUNTY OF NEW YORK                  )

                  __________________________, being duly sworn, deposes,
represents and warrants as follows:

                  1. I am a ______________________ of __________________________
(the "Owner") a corporation duly organized and existing under the laws of
______________, the record owner of MASTR Asset Backed Securities Trust, Series
2003-WMC2, Mortgage Pass-Through Certificates, Class [R][R-X] Certificates, (the
"Residual Certificates"), on behalf of whom I make this affidavit and agreement.
Capitalized terms used but not defined herein have the respective meanings
assigned thereto in the Pooling and Servicing Agreement pursuant to which the
Residual Certificates were issued.

                  2. The Owner (i) is and will be a "Permitted Transferee" as of
____________, 20__ and (ii) is acquiring the Residual Certificates for its own
account or for the account of another Owner from which it has received an
affidavit in substantially the same form as this affidavit. A "Permitted
Transferee" is any person other than a "disqualified organization" or a
possession of the United States. For this purpose, a "disqualified organization"
means the United States, any state or political subdivision thereof, any agency
or instrumentality of any of the foregoing (other than an instrumentality all of
the activities of which are subject to tax and, except for the Federal Home Loan
Mortgage Corporation, a majority of whose board of directors is not selected by
any such governmental entity) or any foreign government, international
organization or any agency or instrumentality of such foreign government or
organization, any rural electric or telephone cooperative, or any organization
(other than certain farmers' cooperatives) that is generally exempt from federal
income tax unless such organization is subject to the tax on unrelated business
taxable income.

                  3. The Owner is aware (i) of the tax that would be imposed on
transfers of the Residual Certificates to disqualified organizations under the
Internal Revenue Code of 1986 that applies to all transfers of the Residual
Certificates after March 31, 1988; (ii) that such tax would be on the transferor
or, if such transfer is through an agent (which person includes a broker,
nominee or middleman) for a non-Permitted Transferee, on the agent; (iii) that
the person otherwise liable for the tax shall be relieved of liability for the
tax if the transferee furnishes to such person an affidavit that the transferee
is a Permitted Transferee and, at the time of transfer, such person does not
have actual knowledge that the affidavit is false; and (iv) that each of the
Residual Certificates may be a "noneconomic residual interest" within the
meaning of proposed Treasury regulations promulgated under the Code and that the
transferor of a "noneconomic residual interest" will remain liable for any taxes
due with respect to the income on such residual interest, unless no significant
purpose of the transfer is to impede the assessment or collection of tax.

                                      F-2-1

<PAGE>

                  4. The Owner is aware of the tax imposed on a "pass-through
entity" holding the Residual Certificates if, at any time during the taxable
year of the pass-through entity, a non-Permitted Transferee is the record holder
of an interest in such entity. (For this purpose, a "pass-through entity"
includes a regulated investment company, a real estate investment trust or
common trust fund, a partnership, trust or estate, and certain cooperatives.)

                  5. The Owner is aware that the Trustee will not register the
transfer of any Residual Certificate unless the transferee, or the transferee's
agent, delivers to the Trustee, among other things, an affidavit in
substantially the same form as this affidavit. The Owner expressly agrees that
it will not consummate any such transfer if it knows or believes that any of the
representations contained in such affidavit and agreement are false.

                  6. The Owner consents to any additional restrictions or
arrangements that shall be deemed necessary upon advice of counsel to constitute
a reasonable arrangement to ensure that the Residual Certificates will only be
owned, directly or indirectly, by an Owner that is a Permitted Transferee.

                  7. The Owner's taxpayer identification number is
_________________.

                  8. The Owner has reviewed the restrictions set forth on the
face of the Residual Certificates and the provisions of Section 5.02(d) of the
Pooling and Servicing Agreement under which the Residual Certificates were
issued (in particular, clauses (iii)(A) and (iii)(B) of Section 5.02(d) which
authorize the Trustee to deliver payments to a person other than the Owner and
negotiate a mandatory sale by the Trustee in the event that the Owner holds such
Certificate in violation of Section 5.02(d)); and that the Owner expressly
agrees to be bound by and to comply with such restrictions and provisions.

                  9. The Owner is not acquiring and will not transfer the
Residual Certificates in order to impede the assessment or collection of any
tax.

                  10. The Owner anticipates that it will, so long as it holds
the Residual Certificates, have sufficient assets to pay any taxes owed by the
holder of such Residual Certificates, and hereby represents to and for the
benefit of the person from whom it acquired the Residual Certificates that the
Owner intends to pay taxes associated with holding such Residual Certificates as
they become due, fully understanding that it may incur tax liabilities in excess
of any cash flows generated by the Residual Certificates.

                  11. The Owner has no present knowledge that it may become
insolvent or subject to a bankruptcy proceeding for so long as it holds the
Residual Certificates.

                  12. The Owner has no present knowledge or expectation that it
will be unable to pay any United States taxes owed by it so long as any of the
Certificates remain outstanding.

                  13. The Owner is not acquiring the Residual Certificates with
the intent to transfer the Residual Certificates to any person or entity that
will not have sufficient assets to pay any taxes

                                      F-2-2

<PAGE>

owed by the holder of such Residual Certificates, or that may become insolvent
or subject to a bankruptcy proceeding, for so long as the Residual Certificates
remain outstanding.

                  14. The Owner will, in connection with any transfer that it
makes of the Residual Certificates, obtain from its transferee the
representations required by Section 5.02(d) of the Pooling and Servicing
Agreement under which the Residual Certificate were issued and will not
consummate any such transfer if it knows, or knows facts that should lead it to
believe, that any such representations are false.

                  15. The Owner will, in connection with any transfer that it
makes of the Residual Certificates, deliver to the Trustee an affidavit, which
represents and warrants that it is not transferring the Residual Certificates to
impede the assessment or collection of any tax and that it has no actual
knowledge that the proposed transferee: (i) has insufficient assets to pay any
taxes owed by such transferee as holder of the Residual Certificates; (ii) may
become insolvent or subject to a bankruptcy proceeding for so long as the
Residual Certificates remains outstanding; and (iii) is not a "Permitted
Transferee".

                  16. The Owner is a citizen or resident of the United States, a
corporation, partnership or other entity created or organized in, or under the
laws of, the United States or any political subdivision thereof, or an estate or
trust whose income from sources without the United States may be included in
gross income for United States federal income tax purposes regardless of its
connection with the conduct of a trade or business within the United States.

                  17. The Owner of the Residual Certificate, hereby agrees that
in the event that the Trust Fund created by the Pooling and Servicing Agreement
is terminated pursuant to Section 9.01 thereof, the undersigned shall assign and
transfer to the Holders of the Class CE Certificates (with respect to a
termination of REMIC I) any amounts in excess of par received in connection with
such termination. Accordingly, in the event of such termination, the Trustee is
hereby authorized to withhold any such amounts in excess of par and to pay such
amounts directly to the Holders of the Class CE Certificates. This agreement
shall bind and be enforceable against any successor, transferee or assigned of
the undersigned in the Residual Certificate. In connection with any transfer of
the Residual Certificate, the Owner shall obtain an agreement substantially
similar to this clause from any subsequent owner.

                                      F-2-3

<PAGE>

                  IN WITNESS WHEREOF, the Owner has caused this instrument to be
executed on its behalf, pursuant to the authority of its Board of Directors, by
its [Vice] President, attested by its [Assistant] Secretary, this ____ day of
__________, 20__.

                                            [OWNER]

                                            By:__________________________
                                            Name:
                                            Title:    [Vice] President

ATTEST:

By:_________________________________
Name:
Title:   [Assistant] Secretary

                  Personally appeared before me the above-named , known or
proved to me to be the same person who executed the foregoing instrument and to
be a [Vice] President of the Owner, and acknowledged to me that [he/she]
executed the same as [his/her] free act and deed and the free act and deed of
the Owner.

                  Subscribed and sworn before me this ____ day of __________,
20___.

                                            ____________________________
                                                     Notary Public

                                            County of __________________
                                            State of ___________________

                                            My Commission expires:

                                      F-2-4

<PAGE>

                          FORM OF TRANSFEROR AFFIDAVIT
                          ----------------------------

STATE OF NEW YORK                   )

COUNTY OF NEW YORK                  )

                  __________________________, being duly sworn, deposes,
represents and warrants as follows:

                  1. I am a ____________________ of ____________________________
(the "Owner"), a corporation duly organized and existing under the laws of
______________, on behalf of whom I make this affidavit.

                  2. The Owner is not transferring the Residual Certificates
(the "Residual Certificates") to impede the assessment or collection of any tax.

                  3. The Owner has no actual knowledge that the Person that is
the proposed transferee (the "Purchaser") of the Residual Certificates: (i) has
insufficient assets to pay any taxes owed by such proposed transferee as holder
of the Residual Certificates; (ii) may become insolvent or subject to a
bankruptcy proceeding for so long as the Residual Certificates remain
outstanding and (iii) is not a Permitted Transferee.

                  4. The Owner understands that the Purchaser has delivered to
the Trustee a transfer affidavit and agreement in the form attached to the
Pooling and Servicing Agreement as Exhibit F-2. The Owner does not know or
believe that any representation contained therein is false.

                  5. At the time of transfer, the Owner has conducted a
reasonable investigation of the financial condition of the Purchaser as
contemplated by Treasury Regulations Section 1.860E-1(c)(4)(i) and, as a result
of that investigation, the Owner has determined that the Purchaser has
historically paid its debts as they became due and has found no significant
evidence to indicate that the Purchaser will not continue to pay its debts as
they become due in the future. The Owner understands that the transfer of a
Residual Certificate may not be respected for United States income tax purposes
(and the Owner may continue to be liable for United States income taxes
associated therewith) unless the Owner has conducted such an investigation.

                  6. Capitalized terms not otherwise defined herein shall have
the meanings ascribed to them in the Pooling and Servicing Agreement.

                                      F-2-5

<PAGE>

                  IN WITNESS WHEREOF, the Owner has caused this instrument to be
executed on its behalf, pursuant to the authority of its Board of Directors, by
its [Vice] President, attested by its [Assistant] Secretary, this ____ day of
___________, 20__.

                                                 [OWNER]

                                                 By:____________________________
                                                 Name:
                                                 Title:    [Vice] President

ATTEST:

By:______________________________
Name:
Title:   [Assistant] Secretary

                  Personally appeared before me the above-named , known or
proved to me to be the same person who executed the foregoing instrument and to
be a [Vice] President of the Owner, and acknowledged to me that [he/she]
executed the same as [his/her] free act and deed and the free act and deed of
the Owner.

                  Subscribed and sworn before me this ____ day of __________,
20___.

                                                  ____________________________
                                                           Notary Public

                                                  County of __________________
                                                  State of ___________________

                                                  My Commission expires:

                                      F-2-6

<PAGE>

                                    EXHIBIT G
                                    ---------

            FORM OF CERTIFICATION WITH RESPECT TO ERISA AND THE CODE

                                                  _____________, 20__

Mortgage Asset Securitization Transactions, Inc.
1285 Avenue of the Americas
New York, New York 10019

Chase Manhattan Mortgage Corporation
10790 Rancho Bernardo Road
San Diego, California 82127

U.S. Bank National Association 180 East 5th Street St. Paul, Minnesota 55101

                  Re:      MASTR Asset Backed Securities Trust, Series
                           2003-WMC2, Mortgage Pass-Through Certificates,
                           Class ___
                           ---------

Dear Sirs:

                  _______________________ (the "Transferee") intends to acquire
from _____________________ (the "Transferor") $____________ Initial Certificate
Principal Balance of MASTR Asset Backed Securities Trust, Series 2003-WMC2,
Mortgage Pass-Through Certificates, Class [CE] [P] [R](the "Certificates"),
issued pursuant to a Pooling and Servicing Agreement (the "Pooling and Servicing
Agreement") dated as of September 1, 2003, among Mortgage Asset Securitization
Transactions, Inc. as depositor (the "Depositor"), Chase Manhattan Mortgage
Corporation as Servicer (the "Servicer") and U.S. Bank National Association as
trustee (the "Trustee"). Capitalized terms used herein and not otherwise defined
shall have the meanings assigned thereto in the Pooling and Servicing Agreement.
The Transferee hereby certifies, represents and warrants to, and covenants with
the Depositor, the Trustee and the Servicer that:

         The Certificates (i) are not being acquired by, and will not be
transferred to, any employee benefit plan within the meaning of section 3(3) of
the Employee Retirement Income Security Act of 1974, as amended ("ERISA"), or
other retirement arrangement, including individual retirement accounts and
annuities, Keogh plans and bank collective investment funds and insurance
company general or separate accounts in which such plans, accounts or
arrangements are invested, that is subject to Section 406 of ERISA or Section
4975 of the Internal Revenue Code of 1986 (the "Code") (any of the foregoing, a
"Plan"), (ii) are not being acquired with "plan assets" of a Plan within the
meaning of the Department of Labor ("DOL") regulation, 29 C.F.R.ss.2510.3-101,
and (iii) will not be transferred to any entity that is deemed to be investing
in plan assets within the meaning of the DOL regulation at 29 C.F.R.ss.
2510.3-101.

                                       G-1

<PAGE>

                                             Very truly yours,

                                             _______________________________

                                             By:__________________________
                                             Name:
                                             Title:

                                       G-2

<PAGE>

                                    EXHIBIT H

                     FORM OF REPORT PURSUANT TO SECTION 4.06

================================================================================

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    Form 10-K

                                  Annual Report

                     Pursuant to Section 13 or 15(d) of the
                 Securities Exchange Act of 1934 (Fee Required)

                     For fiscal year ended ________________

                       Commission file number: 333-_______

                MORTGAGE ASSET SECURITIZATION TRANSACTIONS, INC.
            (as depositor under the Pooling and Servicing Agreement,
          dated as of September 1, 2003, providing for the issuance of
              Mortgage Pass-Through Certificates, Series 2003-WMC2)

                Mortgage Asset Securitization Transactions, Inc.
                ------------------------------------------------

             (Exact name of registrant as specified in its charter)
--------------------------------------------------------------------------------

           Delaware                                    [__]
           --------                                    ----
(State or Other Jurisdiction                           (I.R.S. Employer
of Incorporation)                                      Identification Number)

1285 Avenue of the Americas
New York, New York 10019                                        10019
------------------------                                        -----
(Address of Principal Executive Offices)                      (Zip Code)

Registrant's telephone number, including area code: [___]

================================================================================

                                       H-1

<PAGE>

Securities registered pursuant to Section 12(b) of the Act:

None

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate whether the Registrant: (1) has filed all reports required to be filed
by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the
preceding 12 months (or for such shorter period that the registrant was required
to file such reports), and (2) has been subject to such filing requirements for
the past 90 days.

                                                        X YES    ___No
Item 1.  Business:

Not applicable

Item 2.  Properties:

Not applicable

Item 3.  Legal Proceedings:

None

Item 4.  Submission of Matters to a Vote of Security-Holders

None

Item 5.  Market for Registrant's Common Equity and Related Stockholder Matters

To the best knowledge of the registrant there is no established public trading
market for the certificates.

There are approximately _____ holders of record as of the end of the reporting
year.

Item 6.  Selected Financial Data.

Not applicable.

Item 7. Management's Discussion and Analysis of Financial Condition and Results
of Operations

Not applicable

                                       H-2

<PAGE>

Item 8.  Financial Statements and Supplementary Data.

Not applicable.

Item 9. Changes in and Disagreements With Accountants on Accounting and
Financial Disclosure

None

Item 10.

Not applicable

Item 11.  Executive Compensation

Not applicable

Item 12.  Security Ownership of Certain Beneficial Owners and Management

Not applicable

Item 13.  Certain Relationships and Related Transactions

Not applicable

Item 14.  Exhibits, Financial Statement Schedules, and Reports on Form 8-K

         a)       The company filed on Form 8-K, separately for each
                  distribution date, the distribution of funds related to the
                  trust for each of the following distribution dates:

                           Distribution Date           Form 8-K Filing Date
                           _________________           ________________
                           _________________           ________________
                           _________________           ________________

         b)                99.1 Annual Report of Independent Public Accountants'
                           as to master servicing activities or servicing
                           activities, as applicable

                           (a) Chase Manhattan Mortgage Corporation, as Servicer

                  99.2     Annual Statement of Compliance with obligations under
                           the Pooling and Servicing Agreement or servicing
                           agreement, as applicable, of:

                           (a) Chase Manhattan Mortgage Corporation, as Servicer

                                       H-3

<PAGE>

Such document (i) is not filed herewith since such document was not received by
the Reporting Person at least three business days prior to the due date of this
report; and (ii) will be included in an amendment to this report on Form 10-K/A
to be filed within 30 days of the Reporting Person's receipt of such document.

                                      H-4

<PAGE>

                                   Signatures

                  Pursuant to the requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, the registrant has duly caused this report to
be signed on its behalf by the undersigned thereunto duly authorized.

Date: ___________

                                     Mortgage Asset Securitization Transactions,
                                     Inc., by U.S. Bank National Association, as
                                     Trustee for MASTR Asset Backed Securities
                                     Trust, Series 2003-WMC2, Mortgage Pass-
                                     Through Certificates.

                                     By:____________________________________
                                     Name:
                                     Title:
                                     Company:

                                       H-5

<PAGE>

                                    EXHIBIT I

                           FORM OF LOST NOTE AFFIDAVIT

                              Loan #: ____________
                             Borrower: _____________

                               LOST NOTE AFFIDAVIT

                  I, as ____________________ of ______________________, a
_______________ corporation am authorized to make this Affidavit on behalf of
_____________________ (the "Seller"). In connection with the administration of
the Mortgage Loans held by ____________________, a _________________ corporation
as Seller on behalf of Mortgage Asset Securitization Transactions, Inc. (the
"Purchaser"), _____________________ (the "Deponent"), being duly sworn, deposes
and says that:

         1.       The Seller's address is: _____________________
                                           _____________________
                                           _____________________

         2.       The Seller previously delivered to the Purchaser a signed
                  Initial Certification with respect to such Mortgage and/or
                  Assignment of Mortgage;

         3.       Such Mortgage Note and/or Assignment of Mortgage was assigned
                  or sold to the Purchaser by ________________________, a
                  ____________ corporation pursuant to the terms and provisions
                  of a Mortgage Loan Purchase Agreement dated as of
                  __________ __, _____;

         4.       Such Mortgage Note and/or Assignment of Mortgage is not
                  outstanding pursuant to a request for release of Documents;

         5.       Aforesaid Mortgage Note and/or Assignment of Mortgage (the
                  "Original") has been lost;

         6.       Deponent has made or caused to be made a diligent search for
                  the Original and has been unable to find or recover same;

         7.       The Seller was the Seller of the Original at the time of the
                  loss; and

         8.       Deponent agrees that, if said Original should ever come into
                  Seller's possession, custody or power, Seller will immediately
                  and without consideration surrender the Original to the
                  Purchaser.

         9.       Attached hereto is a true and correct copy of (i) the Note,
                  endorsed in blank by the Mortgagee and (ii) the Mortgage or
                  Deed of Trust (strike one) which

                                       I-1

<PAGE>

                  secures the Note, which Mortgage or Deed of Trust is recorded
                  in the county where the property is located.

         10.      Deponent hereby agrees that the Seller (a) shall indemnify and
                  hold harmless the Purchaser, its successors and assigns,
                  against any loss, liability or damage, including reasonable
                  attorney's fees, resulting from the unavailability of any
                  Notes, including but not limited to any loss, liability or
                  damage arising from (i) any false statement contained in this
                  Affidavit, (ii) any claim of any party that has already
                  purchased a mortgage loan evidenced by the Lost Note or any
                  interest in such mortgage loan, (iii) any claim of any
                  borrower with respect to the existence of terms of a mortgage
                  loan evidenced by the Lost Note on the related property to the
                  fact that the mortgage loan is not evidenced by an original
                  note and (iv) the issuance of a new instrument in lieu thereof
                  (items (i) through (iv) above hereinafter referred to as the
                  "Losses") and (b) if required by any Rating Agency in
                  connection with placing such Lost Note into a Pass-Through
                  Transfer, shall obtain a surety from an insurer acceptable to
                  the applicable Rating Agency to cover any Losses with respect
                  to such Lost Note.

         11.      This Affidavit is intended to be relied upon by the Purchaser,
                  its successors and assigns. _____________________, a
                  ______________ corporation represents and warrants that is has
                  the authority to perform its obligations under this Affidavit
                  of Lost Note.

Executed this ____ day, of ___________ ______.

                                                        SELLER

                                                        By:_____________________
                                                        Name:
                                                        Title:

                  On this _____ day of ________, _____, before me appeared
_________________ to me personally known, who being duly sworn did say that he
is the _____________________ of ____________________ a ______________
corporation and that said Affidavit of Lost Note was signed and sealed on behalf
of such corporation and said acknowledged this instrument to be the free act and
deed of said corporation.

                                           Signature:

                                           [Seal]

                                       I-2

<PAGE>

                                   EXHIBIT J-1

                FORM CERTIFICATION TO BE PROVIDED BY THE TRUSTEE
                                 WITH FORM 10-K

                  Re:      MASTR Asset Backed Securities Trust 2003-WMC2
                           Mortgage Pass Through Certificates, Series 2003-WMC2

                  I, _______________, the senior officer of U.S. Bank National
Association, certify that:

                  l. I have reviewed this annual report on Form 10-K, and all
reports on Form 8-K containing distribution and servicing reports filed in
respect of periods included in the year covered by this annual report, of
Mortgage Asset Securitization Transactions, Inc. (the "Registrant");

                  2. Based on my knowledge, the information in these reports,
taken as a whole, does not contain any untrue statement of a material fact or
omit to state a material fact necessary to make the statements made, in light of
the circumstances under which such statements were made, not misleading as of
the last day of the period covered by this annual report;

                  3. Based on my knowledge, the distribution or servicing
information required to be provided to the Trustee by the Servicer under the
Pooling and Servicing Agreement is included in these reports;

                  4. Based on my knowledge and upon the annual compliance
statement included in the report and required to be delivered to the Trustee in
accordance with the terms of the Pooling and Servicing Agreement, and except as
disclosed in the reports, the Servicer has fulfilled its obligations under the
servicing agreement; and

                  5. The reports disclose all significant deficiencies relating
to the Servicer's compliance with the minimum servicing standards based upon the
report provided by an independent public accountant, after conducting a review
in compliance with the Uniform Single Attestation Program for Mortgage Bankers
or similar procedure, as set forth in the Pooling and Servicing Agreement that
is included in these reports.

                  In giving the certifications above, I have reasonably relied
on information provided to me by the following unaffiliated parties: Chase
Manhattan Mortgage Corporation.

                  Capitalized terms used but not defined herein have the
meanings ascribed to them in the Pooling and Servicing Agreement, dated
September 1, 2003 (the "Pooling and Servicing Agreement"), among the Registrant
as depositor, Chase Manhattan Mortgage Corporation as Servicer and U.S. Bank
National Association as trustee.

                                       J-1

<PAGE>

                                            U.S. BANK NATIONAL ASSOCIATION

                                            By:___________________________
                                            Name:
                                            Title:
                                            Date:

                                       J-2

<PAGE>

                                   EXHIBIT J-2

         FORM OF CERTIFICATION TO BE PROVIDED TO TRUSTEE BY THE SERVICER

U.S. Bank National Association
60 Livingston Avenue
St. Paul, Minnesota 55107

         Re:      MASTR Asset Backed Securities Trust 2003-WMC2

         Chase Manhattan Mortgage Corporation, as Servicer hereby certifies to
the Trustee that:

         1. To our knowledge based on our obligations as set forth in the
Pooling and Servicing Agreement (as defined below), the information in the
Annual Statement of Compliance, the Annual Independent Public Accountant's
Servicing Report and all servicing reports, officer's certificates and other
information relating to the servicing of the Mortgage Loans submitted to the
Trustee taken as a whole, does not contain any untrue statement of a material
fact or omit to state a material fact necessary to make the statements made, in
light of the circumstances under which such statements were made, not misleading
as of the last day of the period covered by such reports;

         2. To our knowledge, the servicing information required to be provided
to the Trustee by the Servicer under the Pooling and Servicing Agreement has
been provided to the Trustee;

         3. Based upon the review required by the Pooling and Servicing
Agreement, and except as disclosed in the Annual Statement of Compliance or the
Annual Independent Public Accountant's Servicing Report, the Servicer has, as of
the last day of the period covered by such reports fulfilled its obligation
under the Pooling and Servicing Agreement; and

         4. The Servicer has disclosed to the Trustee all significant
deficiencies relating to the Servicer's compliance with the minimum servicing
standards in accordance with a review conducted in compliance with the Uniform
Single Attestation Program for Mortgage Bankers or similar standard as set forth
in the Pooling and Servicing Agreement.

         Capitalized terms used but not defined herein have the meanings
ascribed to them in the Pooling and Servicing Agreement, dated as of September
1, 2003 (the "Pooling and Servicing Agreement"), among Chase Manhattan Mortgage
Company, as servicer, Mortgage Asset Securitization Transactions, Inc., as
depositor, and U.S. Bank National Association, as trustee.

                               Chase Manhattan Mortgage Corporation, as Servicer

                               By:_________________________________
                               Name:
                               Title:
                               Date:

                                       J-3

<PAGE>

                                    EXHIBIT K
                                    ---------

                           FORM OF CUSTODIAL AGREEMENT

                            (Available Upon Request)

                                       K-1

<PAGE>

                                    Exhibit L
                                    ---------

             Annual Statement of Compliance pursuant to Section 3.20

                  MASTR Asset Backed Securities Trust 2003-WMC2
              Mortgage Pass Through Certificates, Series 2003-WMC2

                  I, _____________________, hereby certify that I am a duly
appointed __________________________ of Chase Manhattan Mortgage Corporation
(the "Servicer"), and further certify as follows:

                  1. This certification is being made pursuant to the terms of
the Pooling and Servicing Agreement, dated as of September 1, 2003 (the
"Agreement"), among Mortgage Asset Securitization Transactions, Inc., as
depositor, the Servicer, as servicer and U.S. Bank National Association, as
trustee.

                  2. I have reviewed the activities of the Servicer during the
preceding year and the Servicer's performance under the Agreement and to the
best of my knowledge, based on such review, the Servicer has fulfilled all of
its obligations under the Agreement throughout the year.

                  Capitalized terms not otherwise defined herein have the
meanings set forth in the Agreements.

Dated: _____________, 2004

                                       K-2

<PAGE>

                  IN WITNESS WHEREOF, the undersigned has executed this
Certificate as of _____________.

                                         By:  _____________________________
                                         Name:
                                         Title:

                  I, _________________________, a (an) __________________ of the
Servicer, hereby certify that _________________ is a duly elected, qualified,
and acting _______________________ of the Servicer and that the signature
appearing above is his/her genuine signature.

                  IN WITNESS WHEREOF, the undersigned has executed this
Certificate as of ______________.

                                         By:  ______________________________
                                         Name:
                                         Title:

                                       K-3

<PAGE>

                                   Schedule 1

                             MORTGAGE LOAN SCHEDULE

                                [FILED BY PAPER]

                                  Schedule 1-1

<PAGE>

                                   Schedule 2

                         SCHEDULE OF PREPAYMENT CHARGES

                             Available Upon Request

                                  Schedule 2-1

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