Document:

Exhibit 10.11

                      SEABOARD CORPORATION

                EXECUTIVE OFFICERS' BONUS POLICY

PURPOSE:   The purpose of this policy is to establish  guidelines
for  the  payment  of incentive compensation to  named  executive
officers of Seaboard Corporation.

AFFECTS:   The  Chief  Executive  Officer  and  the  other  named
executive  officers  of  Seaboard  Corporation,  as  defined   in
Item 402 of Regulation S-K.

POLICY:

1.   Incentive  Compensation Philosophy:  The  Company  maintains
     the philosophy that determination  of incentive compensation
     for its executive officers is based  upon a recognition that
     these   officers  are   responsible  for   implementing  the
     Company's  long-term  strategic  objectives.  All  executive
     compensation, including the incentive  portion, is  designed
     to attract  and  retain  top  executive employees.

2.   Basis for Determination of Incentive Compensation:

          The Board of Directors  shall  determine  annual  bonus
          amounts for the named executive officers, including the
          Chief Executive  Officer.  This  determination will  be
          based on a subjective review of the Company's financial
          performance, an assessment of each officer's individual
          contribution    to    that   performance   and    other
          discretionary factors.

          The amount assigned to each officer is discretionary.

3.   Method  and  Timing of Payments:  Payments will be  made  in
     cash after year-end  financials  are  available.  This  will
     normally occur about  February 1  following  the  end of the
     previous fiscal year.

EFFECTIVE  DATE:   As  of  the  2004 bonus,  and  supersedes  all
Executive Bonus Policies in effect prior thereto with respect  to
the named executive officers.

DEFERRED COMPENSATION:  Any portion of a bonus which causes total
compensation,  as  defined  in Section  162(m)  of  the  Internal
Revenue  Code of 1986, as amended, to exceed $1,000,000 shall  be
credited  to Seaboard Corporation Executive Deferred Compensation
Plan for the account of that Executive Officer.

<PAGE>================================================================================

                         DEUTSCHE ALT-A SECURITIES, INC.

                                    Depositor

                                       and

                     WELLS FARGO BANK, NATIONAL ASSOCIATION

                  Master Servicer and Securities Administrator

                                       and

                       HSBC BANK USA, NATIONAL ASSOCIATION

                                     Trustee
                            ________________________

                         POOLING AND SERVICING AGREEMENT

                           Dated as of January 1, 2005

                            ________________________

                       Mortgage Pass-Through Certificates
                                  Series 2005-1

================================================================================

<PAGE>

<TABLE>
<CAPTION>

                                TABLE OF CONTENTS

<S>                   <C>
ARTICLE I             DEFINITIONS.................................................................................5
Section 1.1           Whenever used herein, the following words and phrases, unless the context otherwise
                      requires, shall have the meanings specified in this Article:................................5
Section 1.2           Allocation of Certain Interest Shortfall...................................................39

ARTICLE II            CONVEYANCE OF TRUST FUND; ORIGINAL ISSUANCE OF CERTIFICATES................................40
Section 2.1           Conveyance of Trust Fund...................................................................40
Section 2.2           Acceptance by Trustee......................................................................41
Section 2.3           Repurchase or Substitution of Loans........................................................41
Section 2.4           Authentication and Delivery of Certificates; Designation of Certificates as REMIC
                      Regular and Residual Interests.............................................................44
Section 2.5           Representations and Warranties of the Master Servicer......................................44
Section 2.6           Establishment of the Trust.................................................................46

ARTICLE III           ADMINISTRATION AND SERVICING OF THE LOANS; ACCOUNTS........................................47
Section 3.1           Master Servicer............................................................................47
Section 3.2           REMIC-Related Covenants....................................................................48
Section 3.3           Monitoring of Servicers....................................................................48
Section 3.4           Fidelity Bond..............................................................................49
Section 3.5           Power to Act; Procedures...................................................................49
Section 3.6           Due-on-Sale Clauses; Assumption Agreements.................................................50
Section 3.7           Release of Mortgage Files..................................................................50
Section 3.8           Documents, Records and Funds in Possession of Master Servicer To Be Held for Trustee.......51
Section 3.9           Standard Hazard Insurance and Flood Insurance Policies.....................................52
Section 3.10          Presentment of Claims and Collection of Proceeds...........................................53
Section 3.11          Maintenance of the Primary Mortgage Insurance Policies.....................................53
Section 3.12          Trustee to Retain Possession of Certain Insurance Policies and Documents...................53
Section 3.13          Realization Upon Defaulted Loans...........................................................54
Section 3.14          Compensation for the Master Servicer.......................................................54
Section 3.15          REO Property...............................................................................54
Section 3.16          Annual Officer's Certificate as to Compliance..............................................55
Section 3.17          Annual Independent Accountant's Servicing Report...........................................56
Section 3.18          Reports Filed with Securities and Exchange Commission......................................56
Section 3.19          UCC........................................................................................57
Section 3.20          Obligation of the Master Servicer in Respect of Compensating Interest......................57
Section 3.21          Reserved...................................................................................57
Section 3.22          Protected Accounts.........................................................................57
Section 3.23          Distribution Account.......................................................................59

                                      - i -
<PAGE>

Section 3.24          Permitted Withdrawals and Transfers from the Distribution Account..........................60
Section 3.25          Reserve Fund...............................................................................62
Section 3.26          Prepayment Penalty Verification............................................................63

ARTICLE IV            PAYMENTS TO CERTIFICATEHOLDERS; ADVANCES; STATEMENTS AND REPORTS...........................65
Section 4.1           Distributions to Certificateholders........................................................65
Section 4.2           Allocation Realized Losses.................................................................69
Section 4.3           Reduction of Certificate Principal Balances on the Certificates............................70
Section 4.4           Compliance with Withholding Requirements...................................................71
Section 4.5           Distributions on the Uncertificated REMIC Regular Interests................................71
Section 4.6           Statements to Certificateholders...........................................................72
Section 4.7           Advances...................................................................................75

ARTICLE V             THE CERTIFICATES...........................................................................76
Section 5.1           The Certificates...........................................................................76
Section 5.2           Registration of Transfer and Exchange of Certificates......................................78
Section 5.3           Mutilated, Destroyed, Lost or Stolen Certificates..........................................83
Section 5.4           Persons Deemed Owners......................................................................83
Section 5.5           Certain Available Information..............................................................83

ARTICLE VI            THE DEPOSITOR AND THE MASTER SERVICER AND THE CREDIT RISK MANAGER..........................84
Section 6.1           Liability of the Depositor and the Master Servicer.........................................84
Section 6.2           Merger or Consolidation of the Depositor or the Master Servicer............................84
Section 6.3           Limitation on Liability of the Depositor, the Master Servicer, the Servicers, the
                      Securities Administrator and Others........................................................85
Section 6.4           Limitation on Resignation of the Master Servicer...........................................86
Section 6.5           Assignment of Master Servicing.............................................................86
Section 6.6           Rights of the Depositor in Respect of the Master Servicer..................................86
Section 6.7           Duties of the Credit Risk Manager..........................................................87
Section 6.8           Limitation Upon Liability of the Credit Risk Manager.......................................87
Section 6.9           Removal of the Credit Risk Manager.........................................................88

ARTICLE VII           DEFAULT....................................................................................89
Section 7.1           Master Servicer Events of Default..........................................................89
Section 7.2           Trustee to Act; Appointment of Successor...................................................90
Section 7.3           Notification to Certificateholders.........................................................91
Section 7.4           Waiver of Master Servicer Events of Default................................................92

ARTICLE VIII          CONCERNING THE TRUSTEE AND THE SECURITIES ADMINISTRATOR....................................93
Section 8.1           Duties of Trustee and Securities Administrator.............................................93
Section 8.2           Certain Matters Affecting Trustee and Securities Administrator.............................94
Section 8.3           Trustee and Securities Administrator not Liable for Certificates or Loans..................96

                                     - ii -
<PAGE>

Section 8.4           Trustee, Master Servicer and Securities Administrator May Own Certificates.................96
Section 8.5           Fees and Expenses of Trustee and Securities Administrator..................................96
Section 8.6           Eligibility Requirements for Trustee and Securities Administrator..........................97
Section 8.7           Resignation and Removal of Trustee and Securities Administrator............................98
Section 8.8           Successor Trustee or Securities Administrator..............................................99
Section 8.9           Merger or Consolidation of Trustee or Securities Administrator............................100
Section 8.10          Appointment of Co-Trustee or Separate Trustee.............................................100
Section 8.11          Appointment of Office or Agency...........................................................101
Section 8.12          Representations and Warranties of the Trustee.............................................101

ARTICLE IX            TERMINATION...............................................................................103
Section 9.1           Termination Upon Purchase or Liquidation of the Loans.....................................103
Section 9.2           Additional Termination Requirements.......................................................105

ARTICLE X             REMIC PROVISIONS..........................................................................105
Section 10.1          REMIC Administration......................................................................105
Section 10.2          Prohibited Transactions and Activities....................................................108
Section 10.3          Indemnification...........................................................................109

ARTICLE XI            MISCELLANEOUS PROVISIONS..................................................................110
Section 11.1          Amendment.................................................................................110
Section 11.2          Recordation of Agreement; Counterparts....................................................111
Section 11.3          Limitation on Rights of Certificateholders................................................111
Section 11.4          Governing Law.............................................................................112
Section 11.5          Notices...................................................................................112
Section 11.6          Severability of Provisions................................................................113
Section 11.7          Notice to Rating Agencies.................................................................113
Section 11.8          Article and Section References............................................................114
Section 11.9          Grant of Security Interest................................................................114

</TABLE>

                                     - iii -
<PAGE>

EXHIBITS
--------

Exhibit A-1          -     Form of Class I-A-[1] [3] [4]Certificates
Exhibit A-2          -     Form of Class I-A-2 Certificates
Exhibit A-3          -     Form of Class II-A-1 Certificates
Exhibit A-4          -     Form of Class M Certificates
Exhibit A-5          -     Form of Class B-[1][2] Certificates
Exhibit A-6          -     Form of Class B-[3][4][5] Certificates
Exhibit A-7          -     Form of Class R Certificates
Exhibit B-1          -     Form of Rule 144A Investment Letter
Exhibit B-2          -     Form of Investment Letter (Non-Rule 144A)
Exhibit B-3          -     Form of Regulation S Transfer Certificate
Exhibit B-4          -     Form of Clearing System Certificate
Exhibit C            -     Form of Transfer Affidavit

Schedule One         -     Loan Schedule
Schedule Two         -     Prepayment Charge Schedule
Schedule Three       -     Servicing Advances Incurred Prior to Cut-Off Date

<PAGE>

                  This Pooling and Servicing Agreement, dated and effective as
of January 1, 2005 (this "Agreement"), is executed by and among Deutsche Alt-A
Securities, Inc., as depositor (the "Depositor"), Wells Fargo Bank, National
Association, as master servicer (the "Master Servicer") and securities
administrator (the "Securities Administrator"), and HSBC Bank USA, National
Association, as trustee (the "Trustee"). Capitalized terms used in this
Agreement and not otherwise defined have the meanings ascribed to such terms in
Article I hereof.

                              PRELIMINARY STATEMENT

                  The Depositor at the Closing Date is the owner of the Loans
and the other property being conveyed by it to the Trustee for inclusion in the
Trust Fund. On the Closing Date, the Depositor will acquire the Certificates
from the Trust Fund as consideration for its transfer to the Trust Fund of the
Loans and certain other assets and will be the owner of the Certificates. The
Depositor has duly authorized the execution and delivery of this Agreement to
provide for the conveyance to the Trustee of the Loans and the issuance to the
Depositor of the Certificates representing in the aggregate the entire
beneficial ownership of the Trust Fund. All covenants and agreements made by the
Depositor, the Master Servicer, the Securities Administrator and the Trustee
herein with respect to the Loans and the other property constituting the Trust
Fund are for the benefit of the Holders from time to time of the Certificates.
The Depositor, the Master Servicer, the Securities Administrator and the Trustee
are entering into this Agreement, and the Trustee is accepting the trust created
hereby, for good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged.

                  The Certificates issued hereunder, other than the Junior
Subordinate Certificates, have been offered for sale pursuant to a Prospectus,
dated January 28, 2005, and a Prospectus Supplement, dated January 28, 2005 of
the Depositor (together, the "Prospectus"). The Junior Subordinate Certificates
have been offered for sale pursuant to a Private Placement Memorandum, dated
January 28, 2005. The Trust Fund created hereunder is intended to be the "Trust"
as described in the Prospectus and the Certificates are intended to be the
"Certificates" described therein.

                                     - 2 -
<PAGE>

                  As provided herein, the Trustee will make an election to treat
the segregated pool of assets described in the definition of REMIC I (as defined
herein), and subject to this Agreement, as a real estate mortgage investment
conduit (a "REMIC") for federal income tax purposes and such segregated pool of
assets will be designated as "REMIC I." The REMIC I Regular Interests will be
the "regular interests" in REMIC I and Component R-1 of the Class R Certificates
will represent the sole Class of "residual interests" in REMIC I for purposes of
the REMIC Provisions (as defined herein) under the federal income tax law. The
following table irrevocably sets forth the designation, the Uncertificated REMIC
I Pass-Through Rate, the initial Uncertificated Principal Balance, and 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. None
of the REMIC I Regular Interests will be certificated.

<TABLE>
<CAPTION>

                                             Uncertificated                 Initial
                REMIC I                          REMIC I                 Uncertificated            Latest Possible
     Regular Interest Designation           Pass-Through Rate          Principal Balance           Maturity Date(1)
     ----------------------------           -----------------          -----------------           ----------------
<S>         <C>                             <C>                        <C>                        <C>
                LT-1SUB                            (2)                    $ 45,049.52             February 25, 2035
                LT-1GRP                            (2)                    $ 750,825.32            February 25, 2035
                LT-2SUB                            (2)                     $ 5,534.87             February 25, 2035
                LT-2GRP                            (2)                    $ 92,246.57             February 25, 2020
                LT-ZZZ                             (2)                  $ 842,178,126.26          February 25, 2035
                 LT-R                              (2)                      $ 100.00              February 25, 2020
_________________
</TABLE>
(1)      For purposes of Section 1.860G-1(a)(4)(iii) of the Treasury
         regulations, the Distribution Date immediately following the latest
         possible maturity date for the Group I Loans and Group II Loans has
         been designated as the "latest possible maturity date" for each REMIC I
         Regular Interest.
(2)      Calculated in accordance with the definition of "Uncertificated REMIC I
         Pass-Through Rate" herein.

                                     - 3 -
<PAGE>

                                    REMIC II

                  As provided herein, the Trustee shall 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 shall be
designated as "REMIC II". The REMIC II Regular Interests will be the "regular
interests" in REMIC II and Component R-2 of the Class R Certificates will
represent the sole Class of "residual interests" in REMIC II for purposes of the
REMIC Provisions (as defined herein) under the federal income tax law. The
following table irrevocably sets forth the designation, the Uncertificated REMIC
II Pass-Through Rate, the initial Uncertificated Principal Balance, and for
purposes of satisfying Treasury regulation Section 1.860G-1(a)(4)(iii), the
"latest possible maturity date" for each of the REMIC II Regular Interests. None
of the REMIC II Regular Interests will be certificated.

<TABLE>
<CAPTION>

                                             Uncertificated                 Initial
                REMIC II                         REMIC II                Uncertificated            Latest Possible
     Regular Interest Designation           Pass-Through Rate          Principal Balance           Maturity Date(1)
     ----------------------------           -----------------          -----------------           ----------------
<S>         <C>                             <C>                        <C>                        <C>
                 LT-IA                             (2)                  $ 705,775,800.00          February 25, 2035
                LT-IIA1                            (2)                  $ 86,711,600.00           February 25, 2020
                LT-ISUB                            (2)                  $ 45,049,517.39           February 25, 2035
               LT-IISUB                            (2)                   $ 5,534,865.14           February 25, 2035
                 LT-R                              (2)                      $ 100.00              February 25, 2020
_________________
</TABLE>
(1)      For purposes of Section 1.860G-1(a)(4)(iii) of the Treasury
         regulations, the Distribution Date immediately following the latest
         possible maturity date for the Group I Loans and Group II Loans has
         been designated as the "latest possible maturity date" for each REMIC
         II Regular Interest.
(2)      Calculated in accordance with the definition of "Uncertificated REMIC
         II Pass-Through Rate" herein.

                                     - 4 -
<PAGE>

                                    REMIC III

                  As provided herein, the Trustee shall elect to treat the
segregated pool of assets consisting of the REMIC II Regular Interests as a
REMIC for federal income tax purposes, and such segregated pool of assets shall
be designated as "REMIC III". Component R-3 of the Class R Certificates shall
represent the sole Class of "residual interests" in REMIC III for purposes of
the REMIC Provisions under federal income tax law. The following table
irrevocably sets forth the designations, the Remittance Rate and initial
aggregate Certificate Principal Balance for each Class of Certificates which,
together with Component R-3, constitute the entire beneficial interests in REMIC
III. Determined for purposes of satisfying Treasury regulation section
1.860G-1(a)(4)(iii), the "latest possible maturity date" for each Class of
Certificates shall be the first Distribution Date that is two years after the
end of the remaining amortization schedule of the Loan in the Mortgage Pool that
has, as of the Closing Date, the longest remaining amortization schedule,
irrespective of its scheduled maturity:
<TABLE>
<CAPTION>

                                 Initial aggregate
                                    Certificate                                    Assumed Final Maturity
          Class Designation      Principal Balance    Initial Pass-Through Rate           Date (1)
<S>       <C>                    <C>                     <C>                         <C>
                I-A-1             $  362,575,800            LIBOR + 0.50%             February 25, 2035
                I-A-2                         (2)                (2)                  February 25, 2035
                I-A-3             $  330,000,000            LIBOR + 0.50%             February 25, 2035
                I-A-4             $   13,200,000            LIBOR + 0.50%             February 25, 2035
                II-A-1            $   86,711,600               5.8482%                February 25, 2020
                  R               $       100.00               5.8482%                February 25, 2020
                  M               $   22,341,300                 (3)                  February 25, 2035
                 B-1              $   10,116,900                 (3)                  February 25, 2035
                 B-2              $    5,901,500                 (3)                  February 25, 2035
                 B-3              $    3,372,300                 (3)                  February 25, 2035
                 B-4              $    2,950,700                 (3)                  February 25, 2035
                 B-5              $    5,901,682                 (3)                  February 25, 2035

___________________
</TABLE>
(1)      The Distribution date in the month after the maturity date for the
         latest maturing Group I Loan and Group II Loans. For purposes of
         Section 1.860G-1(a)(4)(iii) of the Treasury regulations, the
         Distribution Date in the month following the maturity date for the
         Group I Loan and Group II Loan with the latest maturity date has been
         designated as the "latest possible maturity date" for each Class of
         Certificates.
(2)      The Class I-A-2 Certificates will accrue interest at the Pass-Through
         Rate on the Notional Amount of the Class I-A-2 Certificates calculated
         in accordance with the definition of "Notional Amount" herein. The
         Class I-A-2 Certificates will not be entitled to distributions in
         respect of principal.
(3)      The subordinate pass-through rate for the first Interest Accrual Period
         is 5.750%.

                                     - 5 -
<PAGE>

                               W I T N E S S E T H
                               -------------------

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

                                    ARTICLE I
                                   DEFINITIONS

                  Section 1.1 Whenever used herein, the following words and
phrases, unless the context otherwise requires, shall have the meanings
specified in this Article:

                  Accepted Master Servicing Practices: With respect to any Loan,
those customary mortgage servicing practices of prudent mortgage servicing
institutions that master service mortgage loans of the same type and quality as
such Loan in the jurisdiction where the related Mortgaged Property is located,
to the extent applicable to the Master Servicer (except in its capacity as
successor to a Servicer).

                  Account: The Distribution Account and any Protected Account as
the context may require.

                  Advance: Either (i) a Monthly Advance made by a Servicer as
such term is defined in and pursuant to the related Servicing Agreement or (ii)
an advance made by the Master Servicer pursuant to Section 4.7.

                  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. The Trustee may obtain
and rely on an Officer's Certificate of the Servicer or the Depositor to
determine whether any Person is an Affiliate of such party.

                  Aggregate Senior Percentage: With respect to any Distribution
Date, the percentage equivalent of a fraction, the numerator of which is the
aggregate Certificate Principal Balance of the Group I Senior Certificates
(other than the Class I-A-2 Certificates) and Group II Senior Certificates
immediately prior to that Distribution Date, and the denominator of which is the
sum of the Scheduled Principal Balances of the Group I Loans and Group II Loans
as of the first day of the related Due Period.

                  Aggregate Subordinate Amount: With respect to any date of
determination, an amount equal to the excess of the aggregate Scheduled
Principal Balance of the Group I Loans and Group II Loans over the aggregate
Certificate Principal Balance of the Group I Senior Certificates (other than the
Class I-A-2 Certificates) and Group II Senior Certificates then outstanding.

                  Aggregate Subordinate Percentage: With respect to any
Distribution Date, 100% minus the Aggregate Senior Percentage for that
Distribution Date.

                                     - 6 -
<PAGE>

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

                  Anniversary: Each anniversary of the Cut-Off Date.

                  Appraised Value:  The amount set forth in an appraisal made by
or for the mortgage originator in connection with its origination of each Loan.

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

                  Assignment Agreements: Shall mean (i) the Assignment,
Assumption and Recognition Agreement, dated as of January 31, 2005, among the
Seller, the Depositor and National City, pursuant to which the National City
Servicing Agreement was assigned to the Depositor, (ii) the Assignment,
Assumption and Recognition Agreement, dated as of January 31, 2005, among the
Seller, the Depositor and M&T pursuant to which the M&T Servicing Agreement was
assigned to the Depositor, (iii) the Assignment, Assumption and Recognition
Agreement, dated as of January 31, 2005, among the Seller, the Depositor and
GreenPoint, pursuant to which the GreenPoint Servicing Agreement was assigned to
the Depositor and (iv) the Assignment, Assumption and Recognition Agreement,
dated as of January 31, 2005, among the Seller, the Depositor and SPS, pursuant
to which the SPS Servicing Agreement was assigned to the Depositor.

                  Authorized Denomination: With respect to the Certificates
(other than the Residual Certificates), a minimum initial Certificate Principal
Balance of $25,000 each and integral multiples of $1 in excess thereof as set
forth on the face thereof. With respect to the Class R Certificates, one
Certificate with a Percentage Interest equal to 100% as set forth on the face
thereof.

                  Bankruptcy Coverage: As of the Cut-Off Date, $100,000. The
Bankruptcy Coverage may be reduced upon written confirmation from each Rating
Agency that such reduction will not adversely affect the then current Ratings
assigned to the Certificates by each Rating Agency.

                  Bankruptcy Loss: Any Debt Service Reduction or Deficient
Valuation.

                  Beneficial Holder: A Person holding a beneficial interest in
any Book-Entry Certificate as or through a Depository Participant or an Indirect
Depository Participant or a Person holding a beneficial interest in any
Definitive Certificate.

                  Book-Entry Certificates: The Class I-A-1, Class I-A-2, Class
I-A-3, Class I-A-4, Class II-A-1, Class M, Class B-1 and Class B-2 Certificates.

                                     - 7 -
<PAGE>

                  Business Day: Any day other than a Saturday, a Sunday, or a
day on which banking institutions in Maryland, Minnesota or New York or the city
in which the Corporate Trust Office of the Trustee is located, are authorized or
obligated by law or executive order to be closed.

                  Cap Contract: Shall mean the Cap Contract between the Trustee
and Barclays Bank PLC, together with any successor thereto, for the benefit of
the Holders of the Class I-A-1, Class I-A-2 and Class I-A-4 Certificates.

                  Certificate: Any one of the Certificates issued pursuant to
this Agreement, executed and authenticated by or on behalf of the Securities
Administrator hereunder in substantially one of the forms set forth in Exhibits
A-1, A-2, A-3, A-4, A-5, A-6 and A-7 hereto.

                  Certificate Principal Balance: The Certificate Principal
Balance with respect to any Senior Certificate (other than the Class I-A-2
Certificate, which has no Certificate Principal Balance) and any Subordinate
Certificate outstanding at any time, represents the then maximum amount that the
holder of such Certificate is entitled to receive as distributions allocable to
principal from the cash flow on the Group I Loans or Group II Loans, as
applicable, and the other assets in the Trust Fund. The Certificate Principal
Balance of a Senior Certificate (other than a Class I-A-2 Certificate which has
no Certificate Principal Balance) and any Subordinate Certificate, as of any
date of determination is equal to the initial Certificate Principal Balance of
such Certificate reduced by the aggregate of (i) all amounts allocable to
principal previously distributed with respect to that Certificate and (ii) any
reductions in the Certificate Principal Balance of such Certificate deemed to
have occurred in connection with allocations of Realized Losses, if any. The
initial Certificate Principal Balance of each Class of Certificates is set forth
in the Preliminary Statement hereto. When used in reference to a Class, the term
Certificate Principal Balance means the aggregate of the Certificate Principal
Balances of all Certificates of such Class, and when used in reference to a
group of Certificates (such as the Group I Senior Certificates, Group II Senior
Certificates and Subordinate Certificates) shall mean the aggregate Certificate
Principal Balances of all Classes of Certificates included in such group.

                  Certificate Register: The register maintained pursuant to
Section 5.3.

                  Certificateholder or Holder: The person in whose name a
Certificate is registered in the Certificate Register, except that, solely for
the purposes of giving any consent pursuant to this Agreement, any Certificate
registered in the name of the Depositor, the Master Servicer, the Securities
Administrator, the Trustee or any Affiliate thereof shall be deemed not to be
outstanding and the Percentage Interest evidenced thereby shall not be taken
into account in determining whether the requisite percentage of Percentage
Interests necessary to effect any such consent has been obtained. The Trustee or
the Securities Administrator may conclusively rely upon a certificate of the
Depositor, the Seller or the Master 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 or the Securities Administrator shall be required to recognize as a
"Holder" or "Certificateholder" only the Person in whose name a Certificate is
registered in the Certificate Register.

                                     - 8 -
<PAGE>

                  Certificate Owner: With respect to a Book-Entry Certificate or
Global 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 Depository Participant.

                  Class: All Certificates having the same priority and rights to
payments from the Group I Available Distribution Amount or Group II Available
Distribution Amount, as applicable, designated as a separate Class, as set forth
in the forms of Certificates attached hereto as Exhibits A-1, A-2, A-3, A-4,
A-5, A-6 and A-7, as applicable.

                  Class B Certificates: The Class B-1, Class B-2, Class B-3,
Class B-4 and Class B-5 Certificates.

                  Clearing Agency: An organization registered as a "clearing
agency" pursuant to Section 17A of the Securities and Exchange Act of 1934, as
amended, which initially shall be the Depository.

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

                  Clearstream: Clearstream, Luxembourg, societe anonyme
(formerly known as Cedelbank), a corporation organized under the laws of the
Duchy of Luxembourg.

                  Closing Date:  January 31, 2005.

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

                  Collateral Deficiency Amount: With respect the Group I Loans
and Group II Loans and any Distribution Date prior to the Credit Support
Depletion Date, the amount by which (i) the sum of (x) the aggregate Certificate
Principal Balance of the Group I Senior Certificates (other than the Class I-A-2
Certificates) or Group II Senior Certificates, as applicable, after giving
effect to payments of principal (other than the related Collateral Deficiency
Amount) on that Distribution Date exceeds (ii) the Scheduled Principal Balance
of the Loans in the related Loan Group as of the last day of the related Due
Period.

                  Compensating Interest: For any Distribution Date (i) with
respect to the Loans serviced by National City, the aggregate Prepayment
Interest Shortfalls and Curtailment Shortfalls for such Loans for such
Distribution Date, (ii) with respect to the Loans serviced by GreenPoint and
M&T, the lesser of (i) the aggregate Prepayment Interest Shortfalls for such
Loans for such Distribution Date and (ii) the aggregate Servicing Fee payable to
such Servicer for the related Due Period and (c) with respect to the Loans
serviced by SPS, the lesser of (i) the aggregate Prepayment Interest Shortfalls
for such Loans for such Distribution Date and (ii) one-half of the aggregate
Servicing Fee payable to SPS for the related Due Period.

                  Component R-1: The uncertificated residual interest in REMIC
I.

                  Component R-2: The uncertificated residual interest in REMIC
II.

                                     - 9 -
<PAGE>

                  Component R-3: The uncertificated residual interest in REMIC
III.

                  Corporate Trust Office: The principal corporate trust office
of the Trustee or the Securities Administrator, as the case may be, 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 (i) with respect to the Trustee, HSBC Bank USA,
National Association, 452 Fifth Avenue, New York, New York 10018, or at such
other address as the Trustee may designate from time to time by notice to the
Certificateholders, the Depositor, the Master Servicer and the Securities
Administrator, or (ii) with respect to the Securities Administrator, (A) for
Certificate transfer and surrender purposes, Wells Fargo Bank, National
Association, Sixth Street and Marquette Avenue, Minneapolis, Minnesota 55479,
Attention: DBALT 2005-1 and (B) for all other purposes, Wells Fargo Bank,
National Association, 9062 Old Annapolis Road, Columbia, Maryland 21045,
Attention: DBALT 2005-1, or at such other address as the Securities
Administrator may designate from time to time by notice to the
Certificateholders, the Depositor, the Master Servicer and the Trustee.

                  Credit Risk Management Agreement or Credit Risk Management
Agreements: Each agreement between the Credit Risk Manager and a Servicer or the
Master Servicer, regarding the loss mitigation and advisory services to be
provided by the Credit Risk Manager.

                  Credit Risk Management Fee: The amount payable to the Credit
Risk Manager on each Distribution Date as compensation for all services rendered
by it in the exercise and performance of any and all powers and duties of the
Credit Risk Manager under any Credit Risk Management Agreement, which amount
shall equal one twelfth of the product of (i) the Credit Risk Management Fee
Rate multiplied by (ii) the Scheduled Principal Balance of the Loans and any
related REO Properties as of the first day of the related Due Period.

                  Credit Risk Management Fee Rate: 0.010% per annum.

                  Credit Risk Manager:  The Murrayhill Company, a Colorado
corporation, and its successors and assigns.

                  Credit Support Depletion Date: The Distribution Date on which
the aggregate Certificate Principal Balance of the Subordinate Certificates have
been reduced to zero, prior to giving effect to principal distributions thereon
and the allocation of Realized Losses on such Distribution Date.

                  Cross Payment Trigger Date: Any Distribution Date on which (i)
the aggregate Certificate Principal Balance of the Group I Senior Certificates
(other than the Class I-A-2 Certificates) or the Group II Senior Certificates
have been reduced to zero and (ii) either (a) the Aggregate Subordinate
Percentage is less than 200% times the Aggregate Subordinate Percentage as of
the Closing Date, or (b) the mean aggregate Principal Balance of the Group I
Loans and Group II Loans (including Group I Loans and Group II Loans in
bankruptcy, foreclosure and REO) which are 60 or more days delinquent (averaged
over the preceding six-month period), as a percentage of the Aggregate
Subordinate Amount, is equal to or greater than 50% as of such Distribution
Date.

                                     - 10 -
<PAGE>

                  Curtailment: Any voluntary payment of principal on a Loan,
made by or on behalf of the related Mortgagor, other than a Monthly Payment, a
Prepaid Monthly Payment or a Payoff, which is applied to reduce the outstanding
Principal Balance of the Loan.

                  Curtailment Shortfall: With respect to any Distribution Date
and any Curtailment received during the related Prepayment Period, an amount
equal to one month's interest on such Curtailment at the applicable Net Mortgage
Rate on such Loan.

                  Custodial Agreement: The Custodial Agreement dated as of
January 31, 2005, among the Trustee, Wells Fargo as Custodian, National City,
M&T, GreenPoint and SPS as such agreement may be amended or supplemented from
time to time, or any other custodial agreement entered into after the date
hereof with respect to any Loan subject to this Agreement.

                  Custodian: Either Wells Fargo or any other custodian appointed
under any custodial agreement entered into after the date of this Agreement.

                  Cut-Off Date: January 1, 2005; except that with respect to
each Substitute Loan, the Cut-Off Date shall be the date of substitution.

                  Debt Service Reduction: Any reduction of the amount of the
monthly payment on a Loan made by a bankruptcy court in connection with a
personal bankruptcy of a Mortgagor.

                  Deficient Valuation: In connection with a personal bankruptcy
of a Mortgagor on a Loan, the positive difference, if any, resulting from the
outstanding principal balance on a Loan less a bankruptcy court's valuation of
the related Mortgaged Property.

                  Definitive Certificates: As defined in Section 5.1.

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

                  Depositor: Deutsche Alt-A Securities, Inc., a Delaware
corporation, or its successor-in-interest.

                  Depository Agreement: The letter of representations, dated
January 28, 2005, by and among the Depository, the Depositor and the Trustee.

                  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.

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

                  Determination Date: With respect to each Servicer, the day of
the month set forth as the Determination Date in the related Servicing
Agreement.

                                     - 11 -
<PAGE>
                  Disqualified Organization: A "disqualified organization" as
defined in Section 860E(e)(5) of the Code, and, for purposes of Article V
herein, any Person which is not a Permitted Transferee; provided, that a
Disqualified Organization does not include any Pass-Through Entity which owns or
holds a Residual Certificate and of which a Disqualified Organization, directly
or indirectly, may be a stockholder, partner or beneficiary.

                  Distribution Account: The trust account or accounts created
and maintained by the Securities Administrator pursuant to Section 3.23, for the
benefit of the related Certificateholders and designated "Wells Fargo Bank,
National Association, as Securities Administrator, in trust for registered
holders of Deutsche Alt-A Securities, Inc. Mortgage Loan Trust, Series 2005-1."
Funds in the Distribution Account shall be held in trust for the related
Certificateholders for the uses and purposes set forth in this Agreement. Each
Distribution Account must be an Eligible Account.

                  Distribution Account Deposit Date: With respect to each
Distribution Date, the Business Day prior to such Distribution Date.

                  Distribution Date: The 25th day (or, if such 25th day is not a
Business Day, the Business Day immediately succeeding such 25th day) of each
month, with the first such date being February 25, 2005. The "related Due Date"
for any Distribution Date is the Due Date immediately preceding such
Distribution Date.

                  Due Date: The first day of each calendar month, which is the
day on which the Monthly Payment for each Loan is due, exclusive of any days of
grace. The "related Due Date" for any Distribution Date is the Due Date
immediately preceding such Distribution Date.

                  Due Period: With respect to any Distribution Date and the
Loans, other than the Loans serviced by M&T, the period commencing on the second
day of the month immediately preceding the month in which such Distribution Date
occurs, and with respect to the Loans serviced by M&T, the calendar month
preceding the month in which such Distribution Date occurs.

                  Eligible Account: Any account or accounts held and established
by the Securities Administrator in trust for the Certificateholders at any
Eligible Institution.

                  Eligible Institution: An institution having (i) the highest
short-term debt rating, and one of the two highest long-term debt ratings of
each Rating Agency, (ii) with respect to the Distribution Account, an unsecured
long-term debt rating of at least one of the two highest unsecured long-term
debt ratings of each Rating Agency, or (iii) the approval of each Rating Agency.

                  Eligible Investments: Any one or more of the following
obligations or securities payable on demand or having a scheduled maturity on or
before the Business Day preceding the following Distribution Date (or, with
respect to the Distribution Account maintained with the Securities
Administrator, having a scheduled maturity on or before the following
Distribution Date; provided that, such Eligible Investments shall be managed by,
or an obligation of, the institution that maintains the Distribution Account if
such Eligible Investments mature on the Distribution Date), regardless of
whether any such obligation is issued by the Depositor, the

                                     - 12 -
<PAGE>

applicable Servicer, the Trustee, the Master Servicer, the Securities
Administrator or any of their respective Affiliates and having at the time of
purchase, or at such other time as may be specified, the required ratings, if
any, provided for in this definition:

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

                  (b) direct obligations of, or guaranteed as to timely payment
of principal and interest by, Freddie Mac, Fannie Mae or the Federal Farm Credit
System, provided, that any such obligation, at the time of purchase or
contractual commitment providing for the purchase thereof, is qualified by each
Rating Agency as an investment of funds backing securities rated "AAA" in the
case of S&P and Moody's (the initial rating of the Senior Certificates);

                  (c) demand and time deposits in or certificates of deposit of,
or bankers' acceptances issued by, any bank or trust company, savings and loan
association or savings bank, provided, that the short-term deposit ratings
and/or long-term unsecured debt obligations of such depository institution or
trust company (or in the case of the principal depository institutions in a
holding company system, the commercial paper or long-term unsecured debt
obligations of such holding company) have, in the case of commercial paper, the
highest rating available for such securities by each Rating Agency and, in the
case of long-term unsecured debt obligations, one of the two highest ratings
available for such securities by each Rating Agency, or in each case such lower
rating as will not result in the downgrading or withdrawal of the rating or
ratings then assigned to any Class of Certificates by any Rating Agency but in
no event less than the initial rating of the Senior Certificates;

                  (d) general obligations of or obligations guaranteed by any
state of the United States or the District of Columbia receiving one of the two
highest long-term debt ratings available for such securities by each Rating
Agency, or such lower rating as will not result in the downgrading or withdrawal
of the rating or ratings then assigned to any Class of Certificates by any
Rating Agency;

                  (e) commercial or finance company paper (including both
non-interest-bearing discount obligations and interest-bearing obligations
payable on demand or on a specified date not more than one year after the date
of issuance thereof) that is rated by each Rating Agency in its highest
short-term unsecured rating category at the time of such investment or
contractual commitment providing for such investment, and is issued by a
corporation the outstanding senior long-term debt obligations of which are then
rated by each Rating Agency in one of its two highest long-term unsecured rating
categories, or such lower rating as will not result in the downgrading or
withdrawal of the rating or ratings then assigned to any Class of Certificates
by any Rating Agency but in no event less than the initial rating of the Senior
Certificates;

                  (f) guaranteed reinvestment agreements issued by any bank,
insurance company or other corporation rated in one of the two highest rating
levels available to such issuers by each Rating Agency at the time of such
investment, provided, that any such agreement

                                     - 13 -
<PAGE>

must by its terms provide that it is terminable by the purchaser without penalty
in the event any such rating is at any time lower than such level;

                  (g) repurchase obligations with respect to any security
described in clause (a) or (b) above entered into with a depository institution
or trust company (acting as principal) meeting the rating standards described in
(c) above;

                  (h) 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 rated by each Rating Agency in one of its two
highest long-term unsecured rating categories at the time of such investment or
contractual commitment providing for such investment; provided, however, that
securities issued by any such corporation will not be Eligible Investments to
the extent that investment therein would cause the outstanding principal amount
of securities issued by such corporation that are then held as part of the
Distribution Account to exceed 20% of the aggregate principal amount of all
Eligible Investments then held in the Distribution Account;

                  (i) units of taxable money market funds (including those for
which the Trustee, the Securities Administrator, the Master Servicer or any
affiliate thereof receives compensation with respect to such investment) which
funds have been rated by each Rating Agency rating such fund in its highest
rating category or which have been designated in writing by each Rating Agency
as Eligible Investments with respect to this definition;

                  (j) if previously confirmed in writing to the Trustee and the
Securities Administrator, any other demand, money market or time deposit, or any
other obligation, security or investment, as may be acceptable to each Rating
Agency as a permitted investment of funds backing securities having ratings
equivalent to the initial rating of the Senior Certificates; and

                  (k) such other obligations as are acceptable as Eligible
Investments to each Rating Agency;

provided, however, that such instrument continues to qualify as a "cash flow
investment" pursuant to Code Section 860G(a)(6) and that no instrument or
security shall be an Eligible Investment if (i) such instrument or security
evidences a right to receive only interest payments or (ii) the right to receive
principal and interest payments derived from the underlying investment provides
a yield to maturity in excess of 120% of the yield to maturity at par of such
underlying investment.

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

                  Euroclear: Euroclear Bank SA/NV, Brussels office, as operator
of the Euroclear system.

                  Excess Loss: A Special Hazard Loss incurred on a Loan in
excess of the Special Hazard Coverage, a Fraud Loss incurred on a Loan in excess
of the Fraud Coverage and a Bankruptcy Loss incurred on a Loan in excess of the
Bankruptcy Coverage.

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

                                     - 14 -
<PAGE>

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

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

                  Fitch:  Fitch Ratings or any successor thereto.

                  Fraud Coverage: As of the Cut-Off Date, will be
$15,016,506.35. As of any date of determination after the Cut-Off Date, the
Fraud Coverage will generally be equal to:

                  (1) before the second Anniversary, an amount equal to:

                           (a)      2.00% of the aggregate Principal Balance of
                                    the Group I Loans and Group II Loans as of
                                    the Cut-Off Date, minus

                           (b)      the aggregate amounts allocated to the
                                    Certificates with respect to Fraud Losses on
                                    the Group I Loans and Group II Loans up to
                                    such date of determination;

                  (2) from the second to and including the fifth Anniversary, an
amount equal to:

                           (a)      1.00% of the aggregate Principal Balance of
                                    the Group I Loans and Group II Loans as of
                                    the Cut-Off Date, minus

                           (b)      the aggregate amounts allocated to the
                                    Certificates with respect to Fraud Losses on
                                    the Group I Loans and Group II Loans up to
                                    such date of determination;

                  (3) after the fifth Anniversary, the Fraud Coverage will be
zero.

                  Fraud Loss: The occurrence of a loss on a Loan, as reported by
the related Servicer, arising from any action, event or state of facts with
respect to such Loan which, because it involved or arose out of any dishonest,
fraudulent, criminal, negligent or knowingly wrongful act, error or omission by
the Mortgagor, originator (or assignee thereof) of such Loan, or the related
Servicer, would result in an exclusion from, denial of, or defense to coverage
which otherwise would be provided by an insurance policy previously issued with
respect to such Loan.

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

                  Global Certificate: A Regulation S Temporary Global
Certificate or a Regulation S Permanent Global Certificate.

                  GreenPoint: GreenPoint Mortgage Funding, Inc., or any
successor thereto.

                                     - 15 -
<PAGE>

                  GreenPoint Servicing Agreement: Shall mean the Amended and
Restated Master Mortgage Loan Purchase and Servicing Agreement, dated as of
January 1, 2005, between the Seller and GreenPoint (as modified pursuant to the
related Assignment Agreement).

                  Group I Available Distribution Amount: With respect to a
Distribution Date, the sum of the following amounts that are related to the
Group I Loans:

               (1)  the total amount of all cash received by or on behalf of
                    each Servicer with respect to the Group I Loans serviced by
                    it by the Determination Date for such Distribution Date and
                    not previously distributed (including Liquidation Proceeds,
                    Insurance Proceeds, condemnation proceeds and Subsequent
                    Recoveries), except:

                    (a)  all scheduled payments of principal and interest
                         collected on the Group I Loans but due on a date after
                         the related Due Date;

                    (b)  all Curtailments received with respect to the Group I
                         Loans after the related Prepayment Period, together
                         with all interest paid by the Mortgagors in connection
                         with such Curtailments;

                    (c)  all Payoffs received with respect to the Group I Loans
                         after the related Prepayment Period, together with all
                         interest paid by the Mortgagors in connection with such
                         Payoffs;

                    (d)  Liquidation Proceeds, Insurance Proceeds, condemnation
                         proceeds and Subsequent Recoveries received on the
                         Group I Loans after the related Prepayment Period;

                    (e)  all amounts reimbursable to the related Servicer
                         pursuant to the terms of the related Servicing
                         Agreement or to the Master Servicer, the Securities
                         Administrator, the Trustee or the Custodian pursuant to
                         the terms of this Agreement;

                    (f)  reinvestment income on the balance of funds, if any, in
                         the Protected Accounts or the Distribution Account;

                    (g)  any fees payable to the Servicers and the Credit Risk
                         Manager with respect to the Group I Loans, and any
                         premiums payable in connection with any lender paid
                         primary mortgage insurance policies maintained on the
                         Group I Loans; and

                    (h)  all Prepayment Charges received in connection with the
                         Group I Loans;

          (2)  all Advances made by each Servicer and/or the Master Servicer
               with respect to the Group I Loans for that Distribution Date;

                                     - 16 -
<PAGE>

          (3)  any amounts paid as Compensating Interest on the Group I Loans by
               each Servicer and/or the Master Servicer for that Distribution
               Date; and

          (4)  the total amount of any cash deposited in the Distribution
               Account in connection with the repurchase of any Group I Loan by
               the Depositor or the Mortgage Loan Seller.

                  Group I Loans: Those Loans having original terms to maturity
not greater than thirty (30) years and identified on the Loan Schedule as Group
I Loans.

                  Group I Senior Certificates: The Class I-A-1, Class I-A-2,
Class I-A-3 and Class I-A-4 Certificates.

                  Group II Available Distribution Amount: With respect to a
Distribution Date, the sum of the following amounts that are related to the
Group II Loans:

          (1)  the total amount of all cash received by or on behalf of each
               Servicer with respect to the Group II Loans serviced by it by the
               Determination Date for such Distribution Date and not previously
               distributed (including Liquidation Proceeds, Insurance Proceeds,
               condemnation proceeds and Subsequent Recoveries), except:

               (a)  all scheduled payments of principal and interest collected
                    on the Group II Loans but due on a date after the related
                    Due Date;

               (b)  all Curtailments received with respect to the Group II Loans
                    after the related Prepayment Period, together with all
                    interest paid by the Mortgagors in connection with such
                    Curtailments;

               (c)  all Payoffs received with respect to the Group II Loans
                    after the related Prepayment Period, together with interest
                    paid by the Mortgagors in connection with such Payoffs;

               (d)  Liquidation Proceeds, Insurance Proceeds, condemnation
                    proceeds and Subsequent Recoveries received on the Group II
                    Loans after the related Prepayment Period;

               (e)  all amounts reimbursable to the related Servicer pursuant to
                    the terms of the related Servicing Agreement or to the
                    Master Servicer, the Securities Administrator, the Trustee
                    or the Custodian pursuant to the terms of this Agreement;

               (f)  reinvestment income on the balance of funds, if any, in the
                    Protected Accounts or the Distribution Account;

               (g)  any fees payable to the Servicers and the Credit Risk
                    Manager with respect to the Group II Loans, and any premiums
                    payable in

                                     - 17 -
<PAGE>

                    connection with any lender paid primary mortgage insurance
                    policies maintained on the Group II Loans; and

               (h)  all Prepayment Charges received in connection with the Group
                    II Loans;

     (2)  All Advances made by each Servicer and/or the Master Servicer with
          respect to the Group II Loans for that Distribution Date;

     (3)  Any amounts paid as Compensating Interest on the Group II Loans by
          each Servicer and/or the Master Servicer for that Distribution Date;
          and

     (4)  The total amount of any cash deposited in the Distribution Account in
          connection with the repurchase of any Group II Loan by the Depositor
          or the Mortgage Loan Seller.

                  Group II Loans: Those Loans having original terms to maturity
of not greater than fifteen (15) years and identified on the Loan Schedule as
Group II Loans.

                  Group II Senior Certificates: The Class II-A-1 Certificates
and Class R Certificates.

                  Independent: When used with respect to any specified Person,
any such Person who (i) is in fact independent of the Depositor, each Servicer,
the Master Servicer and the Securities Administrator, (ii) does not have any
direct financial interest or any material indirect financial interest in the
Depositor, Servicer, the Master Servicer or the Securities Administrator or any
Affiliate of either and (iii) is not connected with the Depositor, any Servicer,
the Master Servicer or the Securities Administrator as an officer, employee,
promoter, underwriter, trustee, partner, director or person performing similar
functions.

                  Indirect Depository Participants: Entities such as banks,
brokers, dealers or trust companies that clear through or maintain a custodial
relationship with a Depository Participant, either directly or indirectly.

                  Insurance Proceeds: Proceeds of any title policy, hazard
policy or other insurance policy covering a 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 applicable Servicing Agreement.

                                     - 18 -
<PAGE>

                  Interest Accrual Period: With respect to each Distribution
Date and each Certificate, other than the Group I Senior Certificates, the
calendar month preceding the month in which the Distribution Date occurs. The
Interest Accrual Period for the Group I Senior Certificates is (a) as to the
Distribution Date in February 2005, the period commencing on January 25, 2005
and ending on the day preceding the Distribution Date in February 2005, and (b)
as to any Distribution Date after the Distribution Date in February 2005, the
period commencing on the Distribution Date in the month immediately preceding
the month in which that Distribution Date occurs and ending on the day preceding
that Distribution Date.

                  Interest Distribution Amount: On any Distribution Date, for
any Class of Certificates, the sum of (i) interest accrued on the related
Certificate which shall be equal to (a) the product of (1) 1/12th of the
Pass-Through Rate for such Class and (2) the aggregate Certificate Principal
Balance or Notional Amount, as applicable, for such Class before giving effect
to allocations of Realized Losses in connection with such Distribution Date or
distributions to be made on such Distribution Date, reduced by (b) Net Interest
Shortfalls allocated to such Class pursuant to the definition of "Net Interest
Shortfall", including the interest portion of Realized Losses allocated to such
Class pursuant to Section 4.2 and (ii) the amount of interest accrued but unpaid
to such class from prior Distribution Dates.

                  Investment Withdrawal Distribution Date: As defined in Section
3.23(c).

                  Junior Subordinate Certificates: The Class B-3, Class B-4 and
Class B-5 Certificates, collectively.

                  Last Scheduled Distribution Date: The Distribution Date in
February, 2035, which is the Distribution Date immediately following the
maturity date for the Loan with the latest maturity date.

                  LIBOR: For the initial Interest Accrual Period, the Securities
Administrator will determine One-Month LIBOR for such Interest Accrual Period
based on information available on the second Business Day preceding the Closing
Date with respect to the Group I Senior Certificates, and for any Interest
Accrual Period thereafter, the one month rate which appears on the Dow Jones
Telerate System, page 3750, as of 11:00 a.m., London time on the LIBOR
Determination Date. If such rate is not provided, LIBOR shall mean the rate
determined by the Securities Administrator (or a calculation agent on its
behalf) in accordance with the following procedure:

                  (i) The Securities Administrator on the LIBOR Determination
Date will request the principal London offices of each of four major Reference
Banks in the London interbank market, as selected by the Securities
Administrator, to provide the Securities Administrator with its offered
quotation for deposits in United States dollars for the upcoming one-month
period, commencing on the second LIBOR Business Day immediately following such
LIBOR Determination Date, to prime banks in the London interbank market at
approximately 11:00 a.m. London time on such LIBOR Determination Date and in a
principal amount that is representative for a single transaction in United
States dollars in such market at such time. If at least two such quotations are
provided, LIBOR determined on such LIBOR Determination Date will be the
arithmetic mean of such quotations.

                  (ii) If fewer than two quotations are provided, LIBOR
determined on such LIBOR Determination Date will be the arithmetic mean of the
rates quoted at approximately 11:00 a.m. in New York City on such LIBOR
Determination Date by three major banks in New York City selected by the
Securities Administrator for one-month United States dollar loans to lending
European banks, in a principal amount that is representative for a single
transaction in United States dollars in such market at such time; provided,
however, that if the banks so selected by the Securities Administrator are not
quoting as mentioned in this sentence, LIBOR

                                     - 19 -
<PAGE>

determined on such LIBOR Determination Date will continue to be LIBOR as then
currently in effect on such LIBOR Determination Date.

                  The establishment of LIBOR and each Pass-Through Rate for the
Group I Senior Certificates by the Securities Administrator shall (in the
absence of manifest error) be final, conclusive and binding upon each Holder of
a Group I Senior Certificate and the Securities Administrator.

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

                  LIBOR Determination Date: The second LIBOR Business Day before
the first day of the related Interest Accrual Period.

                  Liquidated Loan: A Loan as to which the related Servicer has
determined in accordance with its customary servicing practices that all amounts
which it expects to recover from or on account of such Loan, whether from
Insurance Proceeds, Liquidation Proceeds or otherwise, have been recovered. For
purposes of this definition, acquisition of a Mortgaged Property by the Trust
Fund shall not constitute final liquidation of the related Loan.

                  Liquidated Loan: A Loan as to which a Servicer has determined
in accordance with its customary servicing practices that all amounts which it
expects to recover from or on account of such Loan, whether from Insurance
Proceeds, Liquidation Proceeds or otherwise, have been recovered. For purposes
of this definition, acquisition of a Mortgaged Property by the Trust Fund shall
not constitute final liquidation of the related Loan.

                  Liquidation Principal: With respect to any Distribution Date
and any Loan Group, the principal portion of net Liquidation Proceeds received
with respect to each such Loan which became a Liquidated Loan (but not in excess
of the Principal Balance thereof) during the related Prepayment Period.

                  Liquidation Proceeds: The amount (other than Insurance
Proceeds or amounts received in respect of the rental of any REO Property prior
to REO Disposition) received by the applicable Servicer pursuant to the related
Servicing Agreement 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 Loan through a trustee's sale, foreclosure
sale or otherwise, or (iii) the repurchase, substitution or sale of a Loan or an
REO Property pursuant to or as contemplated by Section 2.3 or Section 9.1, in
each case net of any portion thereof that represents a recovery of principal or
interest for which an Advance was made by a Servicer or the Master Servicer.

                  Loan Documents: The documents evidencing or relating to each
Loan delivered to the Custodian under the Custodial Agreement on behalf of the
Trustee.

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

                                     - 20 -
<PAGE>

                  Loan Schedule: The schedule, as amended from time to time, of
Loans, attached hereto as Schedule One, which shall set forth as to each Loan
the following, among other things:

               (i)  the loan number of the Loan and name of the related
                    Mortgagor;

               (ii) the street address of the Mortgaged Property including city,
                    state and zip code;

               (iii) the Mortgage Interest Rate as of the Cut-Off Date;

               (iv) the original term and maturity date of the related Mortgage
                    Note;

               (v)  the original Principal Balance;

               (vi) the first payment date;

               (vii) the Monthly Payment in effect as of the Cut-Off Date;

               (viii) the date of the last paid installment of interest;

               (ix) the unpaid Principal Balance as of the close of business on
                    the Cut-Off Date;

               (x)  the Loan-to-Value ratio at origination;

               (xi) the type of property and the Original Value of the Mortgaged
                    Property;

               (xii) whether a primary mortgage insurance policy is in effect as
                    of the Cut-Off Date;

               (xiii) the nature of occupancy at origination; and

               (xiv) the related Loan Group.

                  Loans: The Mortgages and the related Mortgage Notes, each
transferred and assigned to the Trustee pursuant to the provisions hereof as
from time to time are held as part of the Trust Fund, as so identified in the
Loan Schedule. Each of the Loans is referred to individually in this Agreement
as a "Loan".

                  Loan-to-Value Ratio: The original principal amount of a Loan
divided by the Original Value; however, references to "current Loan-to-Value
Ratio" shall mean the then current Principal Balance of a Loan divided by the
Original Value.

                  M&T: M&T Mortgage Corporation, a New York banking corporation,
or any successor thereto.

                  M&T Servicing Agreement: The Interim Servicing and Servicing
Rights Purchase Agreement, dated as of March 1, 2004 between the Seller and M&T
(as modified pursuant to the related Assignment Agreement).

                                     - 21 -
<PAGE>

                  Master Servicer: As of the Closing Date, Wells Fargo Bank,
National Association and thereafter, its respective successors in interest who
meet the qualifications of this Agreement. The Master Servicer and the
Securities Administrator shall at all times be the same Person.

                  Master Servicer Event of Default: One or more of the events
described in Section 7.1 hereof.

                  Monthly Advance: As to any Mortgage Loan or REO Property, any
advance made by a Servicer in respect of any Determination Date or in respect of
any Distribution Date by a successor Servicer (including the Master Servicer) or
by the Master Servicer pursuant to Section 4.7 of this Agreement (which advances
shall not include principal or interest shortfalls due to bankruptcy proceedings
or application of the Relief Act or similar state or local laws.)

                  Monthly Payment: The scheduled payment of principal and
interest on a Loan which is due on any Due Date for such Loan after giving
effect to any reduction in the amount of interest collectible from any Mortgagor
pursuant to the Relief Act.

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

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

                  Mortgage File: The Loan Documents pertaining to a particular
Loan.

                  Mortgage Interest Rate: For any Loan, the per annum rate at
which interest accrues on such Loan pursuant to the terms of the related
Mortgage Note without regard to any reduction thereof as a result of the Relief
Act.

                  Mortgage Loan Purchase Agreement: The Mortgage Loan Purchase
Agreement dated as of January 31, 2005, between the Depositor and the Seller.

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

                  Mortgage Pool: All of the Loans.

                  Mortgaged Property: With respect to any Loan, the real
property, together with improvements thereto, securing the indebtedness of the
Mortgagor under the related Loan.

                  Mortgagor: The obligor on a Mortgage Note.

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

                  National City Servicing Agreement: The Master Seller's
Warranties and Servicing Agreement, dated as of January 1, 2005 between the
Seller and National City (as modified pursuant to the related Assignment
Agreement).

                                     - 22 -
<PAGE>

                  Net Interest Shortfall: For any Distribution Date, the sum of
(i) any Prepayment Interest Shortfall for such Distribution Date, (ii) any
Relief Act Interest Shortfall for such Distribution Date and (iii) the portion
of Realized Losses attributable to interest allocated to the Certificates.

                  Net Mortgage Rate: For each Loan and for any date of
determination, a per annum rate equal to the Mortgage Interest Rate for such
Loan less the related Servicing Fee Rate and the Credit Risk Management Fee
Rate.

                  Net WAC Pass Through Rate: The Net WAC Pass Through Rate for
any Distribution Date and the Class I-A-1, Class I-A-3 and Class I-A-4
Certificates is a rate per annum equal to the weighted average of the Net
Mortgage Rates of the then outstanding Group I Loans, weighted based on their
Scheduled Principal Balances as of the first day of the calendar month preceding
the month in which the Distribution Date occurs. For federal income tax
purposes, the equivalent of the foregoing shall be expressed as the weighted
average of the Uncertificated REMIC II Pass-Through Rate on REMIC II Regular
Interest LT-IA, weighted on the basis of the Uncertificated Principal Balance of
such REMIC II Regular Interest.

                  The Net WAC Pass Through Rate for any Distribution Date and
the Subordinate Certificates is a rate per annum equal to the weighted average
of the Net Mortgage Rates of the Group I Loans and the Group II Loans (weighted
on the basis of the results of subtracting from the aggregate Principal Balance
of each Loan Group the current aggregate Certificate Principal Balance of the
related Senior Certificates (other than the Class I-A-2 Certificates), as of the
first day of the calendar month preceding the month in which the Distribution
Date occurs). For federal income tax purposes, the equivalent of the foregoing
shall be expressed as the weighted average of the Uncertificated REMIC II
Pass-Through Rates on REMIC II Regular Interest LT-ISUB and REMIC II Regular
Interest LT-IISUB, weighted on the basis of the Uncertificated Principal Balance
of each such REMIC II Regular Interest.

                  Net WAC Rate Carryover Amount: With respect to the Class
I-A-1, Class I-A-3 and Class I-A-4 Certificates and any Distribution Date on
which the Class I-A-1 Pass-Through Rate, Class I-A-3 Pass-Through Rate or Class
I-A-4 Pass-Through Rate is limited to the applicable Net WAC Pass Through Rate,
an amount equal to the sum of (i) the excess of (x) the amount of interest such
Class would have been entitled to receive on such Distribution Date had the
applicable Net WAC Pass-Through Rate not been applicable to such Certificates on
such Distribution Date over (y) the amount of interest paid on such Distribution
Date at the applicable Net WAC Pass-Through Rate plus (ii) the Net WAC Rate
Carryover Amount for the previous Distribution Date not previously distributed
together with interest thereon at a rate equal to the Class I-A-1 Pass-Through
Rate, Class I-A-3 Pass-Through Rate or Class I-A-4 Pass-Through Rate, as
applicable, for the most recently ended Interest Accrual Period determined
without taking into account the applicable Net WAC Pass-Through Rate.

                  Nonrecoverable Advance: With respect to any Loan, any Advance
or Servicing Advance which the related Servicer shall have determined to be a
Nonrecoverable Advance as defined in and pursuant to the related Servicing
Agreement, or which the Master Servicer shall have determined to be
nonrecoverable pursuant to Section 4.7, respectively, and which was, or is
proposed to be, made by such Servicer or the Master Servicer.

                                     - 23 -
<PAGE>

                  Non-U.S. Person: A Person that is not a U.S. Person.

                  Notional Amount: With respect to the Class I-A-2 Certificates
and any Distribution Date, an amount equal to the aggregate Certificate
Principal Balance of the Regular Interest Certificates (other than the Class
I-A-2 Certificates and the Class II-A-1 Certificates). For federal income tax
purposes, the Notional Amount of the Class I-A-2 Certificates will equal the
aggregate Uncertificated Principal Balance of REMIC II Regular Interest LT-IA,
REMIC II Regular Interest LT-ISUB and REMIC II Regular Interest LT-IISUB.

                  Officer's Certificate: With respect to any Person, a
certificate signed by the Chairman of the Board, the President or a
Vice-President, however denominated, of such Person (or, in the case of a Person
which is not a corporation, signed by the person or persons having like
responsibilities), and delivered to the Trustee.

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

                  Original Value: With respect to any Loan other than a Loan
originated for the purpose of refinancing an existing mortgage debt, the lesser
of (a) the Appraised Value (if any) of the Mortgaged Property at the time the
Loan was originated or (b) the purchase price paid for the Mortgaged Property by
the Mortgagor. With respect to a Loan originated for the purpose of refinancing
existing mortgage debt, the Original Value shall be equal to the lesser of (a)
the Appraised Value of the Mortgaged Property at the time the Loan was
originated or (b) the appraised value at the time the refinanced mortgage debt
was incurred.

                  OTS: The Office of Thrift Supervision, or any successor
thereto.

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

                  Pass-Through Entity: Any regulated investment company, real
estate investment trust, common trust fund, partnership, trust or estate, and
any organization to which Section 1381 of the Code applies.

                  Pass-Through Rate: With respect to the Class I-A-1
Certificates and the Distribution Date in February 2005, 3.00% per annum, and
with respect to any Distribution Date thereafter, will be a per annum rate equal
to the lesser of (a) One-Month LIBOR + 0.50% per annum and (b) the weighted
average of the Net Mortgage Rates of the Group I Loans for that Distribution
Date. For federal income tax purposes, the Pass-Through Rate on the Class I-A-1
Certificates will equal the lesser of (a) One-Month LIBOR plus 0.50% per annum
and (b) the related Net WAC Pass-Through Rate.

                                     - 24 -
<PAGE>

                  With respect to the Class I-A-2 Certificates and the
Distribution Date in February 2005, 2.7356% per annum, and with respect to any
Distribution Date thereafter, will be a per annum rate, expressed as a fraction,
the numerator of which is equal to the sum of (i) the product of (x) the excess
of the weighted average of the Net Mortgage Rates of the Group I Loans over the
lesser of (a) One-Month LIBOR plus 0.50% per annum and (b) the weighted average
of the Net Mortgage Rates of the Group I Loans for that Distribution Date and
(y) the aggregate Certificate Principal Balance of the Group I Senior
Certificates (other than the Class I-A-2 Certificates) and (ii) the product of
(x) the excess of the weighted average of the Net Mortgage Rates of the Group I
Loans and the Group II Loans (weighted on the basis of the results of
subtracting from the aggregate Principal Balance of each Loan Group the current
aggregate Certificate Principal Balance of the related Senior Certificates
(other than the Class I-A-2 Certificates)), over the rate at which the
Subordinate Certificates accrue interest and (y) the aggregate Certificate
Principal Balance of the Subordinate Certificates, and the denominator of which
is equal to the Notional Amount of the Class I-A-2 Certificates. For federal
income tax purposes, the Pass-Through Rate on the Class I-A-2 Certificates will
equal (i) the excess, if any, of (a) the Uncertificated REMIC II Pass-Through
Rate on REMIC II Regular Interest LT-IA over (b) One-Month LIBOR + 0.50% per
annum, on a notional amount equal to the Uncertificated Principal Balance of
REMIC II Regular Interest LT-IA and (ii) the excess, if any, of (a) the weighted
average of the Uncertificated REMIC II Pass-Through Rates on REMIC II Regular
Interest LT-ISUB and REMIC II Regular Interest LT-IISUB over (b) 5.75%, on a
notional amount equal to the aggregate Uncertificated Principal Balance of REMIC
II Regular Interest LT-ISUB and REMIC II Regular Interest LT-IISUB.

                  With respect to the Class I-A-3 Certificates and the
Distribution Date in February 2005, 3.00% per annum, and with respect to any
Distribution Date thereafter, will be a per annum rate equal to the lesser of
(a) One-Month LIBOR + 0.50% per annum and (b) the weighted average of the Net
Mortgage Rates of the Group I Loans for that Distribution Date. For federal
income tax purposes, the Pass-Through Rate on the Class I-A-3 Certificates will
equal the lesser of (a) One-Month LIBOR plus 0.50% per annum and (b) the related
Net WAC Pass-Through Rate.

                  With respect to the Class I-A-4 Certificates and the
Distribution Date in February 2005, 3.00% per annum, and with respect to any
Distribution Date thereafter, will be a per annum rate equal to the lesser of
(a) One-Month LIBOR + 0.50% per annum and (b) the weighted average of the Net
Mortgage Rates of the Group I Loans for that Distribution Date. For federal
income tax purposes, the Pass-Through Rate on the Class I-A-4 Certificates will
equal the lesser of (a) One-Month LIBOR plus 0.50% per annum and (b) the related
Net WAC Pass-Through Rate.

                  With respect to the Class II-A-1 Certificates and the
Distribution Date in February 2005, approximately 5.8482% per annum, and with
respect to any Distribution Date thereafter, will be a per annum rate equal to
the weighted average of the Net Mortgage Rates of the Group II Loans for that
Distribution Date. For federal income tax purposes, the equivalent of the
foregoing shall be expressed as the weighted average of the Uncertificated REMIC
II Pass-Through Rate on REMIC II Regular Interest LT-IIA1, weighted on the basis
of the Uncertificated Principal Balance of such REMIC II Regular Interest.

                                     - 25 -
<PAGE>

                  With respect to the Subordinate Certificates and the
Distribution Date in February 2005, 5.75%, and with respect to any Distribution
Date thereafter, will be a per annum rate equal to the lesser of (i) the
weighted average of the Net Mortgage Rates of the Group I Loans and the Group II
Mortgage Loans (weighted on the basis of the results of subtracting from the
aggregate Principal Balance of each Loan Group the current aggregate Certificate
Principal Balance of the related Senior Certificates, other than the Class I-A-2
Certificates) and (ii) 5.75%. For federal income tax purposes, the Pass-Through
Rate on the Subordinate Certificates will equal the lesser of (a) the weighted
average of the Uncertificated REMIC II Pass-Through Rates on REMIC II Regular
Interest LT-ISUB and REMIC II Regular Interest LT-IISUB and (b) 5.75%.

                  Payoff: Any voluntary payment of principal on a Loan by a
Mortgagor equal to the entire outstanding Principal Balance of such Loan, if
received in advance of the last scheduled Due Date for such Loan and is not
accompanied by scheduled interest due on any date or dates in any month or
months subsequent to the month of such payment-in-full.

                  Percentage Interest: With respect to any Class of Certificates
(other than the Residual Certificates) and any date of determination, 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. Each Certificate is
issuable only in minimum Percentage Interests corresponding to the Authorized
Denomination of the related Class of Certificates; 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, is as set forth on the face of such
Certificate.

                  Permitted Transferee: With respect to the holding or ownership
of any Residual Certificate, any Person other than (i) the United States, a
State or any political subdivision thereof, or any agency or instrumentality of
any of the foregoing, (ii) a foreign government or International Organization,
or any agency or instrumentality of either of the foregoing, (iii) an
organization (except certain farmers' cooperatives described in Code Section
521) which is exempt from the taxes imposed by Chapter 1 of the Code (unless
such organization is subject to the tax imposed by Section 511 of the Code on
unrelated business taxable income), (iv) rural electric and telephone
cooperatives described in Code Section 1381(a)(2)(C), (v) any electing large
partnership under Section 775 of the Code, (vi) any Person from whom the Trustee
or the Securities Administrator has not received an affidavit to the effect that
it is not a "disqualified organization" within the meaning of Section 860E(e)(5)
of the Code, and (vii) any other Person so designated by the Depositor based
upon an Opinion of Counsel (which shall not be an expense of the Securities
Administration or the Trustee) that the transfer of an Ownership Interest in a
Residual Certificate to such Person may cause any REMIC hereunder to fail to
qualify as a REMIC at any time that the Certificates are outstanding. The terms
"United States," "State" and "International Organization" shall have the
meanings set forth in Code Section 7701 or successor provisions. A corporation
shall not be treated as an instrumentality of the United States or of any State
or political subdivision thereof if all of its activities are subject to tax,
and, with the

                                     - 26 -
<PAGE>

exception of Freddie Mac, a majority of its board of directors is not selected
by such governmental unit.

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

                  Plan: As defined in Section 5.2.

                  Prepaid Monthly Payment: Any Monthly Payment received prior to
its scheduled Due Date, which is intended to be applied to a Loan on its
scheduled Due Date and held in the related Protected Account until the related
Servicer Remittance Date following its scheduled Due Date.

                  Prepayment Charge: With respect to any Principal Prepayment,
any prepayment premium, penalty or charge payable by a Mortgagor in connection
with any Principal Prepayment on a Loan pursuant to the terms of the related
Mortgage Note.

                  Prepayment Charge Schedule: As of any date, the list of Loans
providing for a Prepayment Charge included in the Trust Fund on such date,
attached hereto as Schedule Two (including the prepayment charge summary
attached thereto). The Depositor shall deliver or cause the delivery of the
Prepayment Charge Schedule to the Master Servicer, the Trustee and the Credit
Risk Manager on the Closing Date. The Prepayment Charge Schedule shall set forth
the following information with respect to each Prepayment Charge:

               (i)  the Loan identifying number;

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

               (iii) the date on which the first Monthly Payment was due on the
                    related Mortgaged Loan;

               (iv) the term of the related Prepayment Charge;

               (v)  the original Principal Balance of the related Loan; and

               (vi) the Principal Balance of the related Loan as of the Cut-Off
                    Date.

                  Prepayment Interest Shortfall: For any Distribution Date and
any Loan on which a Payoff was made by a Mortgagor during the related Prepayment
Period, an amount equal to one month's interest at the applicable Net Mortgage
Rate on such Loan less the amount of interest actually paid by the Mortgagor
with respect to such Payoff.

                  Prepayment Period: For any Distribution Date is (i) with
respect to the Loans serviced by National City, the period commencing on the
second day of the month preceding the month in which such Distribution Date
occurs and ending on the first day of the month in which such Distribution Date
occurs, (ii) with respect to the Loans serviced by M&T and SPS, the period
commencing on the 16th day of the month preceding the month in which such

                                     - 27 -
<PAGE>

Distribution Date occurs and ending on the 15th day of the month in which such
Distribution Date occurs with respect to Payoffs, and the calendar month
immediately preceding the month in which such Distribution Date occurs with
respect to Curtailments, and (iii) with respect to the Loans serviced by
GreenPoint, the calendar month immediately preceding the month in which such
Distribution Date occurs.

                  Principal Balance: For any Loan and at the time of any
determination, the principal balance of such Loan remaining to be paid at the
close of business on the Cut-Off Date, after deduction of all principal payments
due on or before the Cut-Off Date whether or not received, reduced by the
principal portion of all amounts received with respect to such Loan after the
Cut-Off Date and distributed or to be distributed to Certificateholders through
the Distribution Date in the month of such determination. In the case of a
Substitute Loan, "Principal Balance" shall mean, at the time of any
determination, the principal balance of such Substitute Loan on the related
Cut-Off Date, reduced by the principal portion of all amounts received with
respect to such Loan after the Cut-Off Date and distributed or to be distributed
to Certificateholders through the Distribution Date in the month of
determination. The Principal Balance of a Liquidated Loan shall be zero.

                  Principal Distribution Amount: With respect to any
Distribution Date, and a Loan Group, the sum of:

                  (1)      scheduled principal payments on the Group I Loans or
                           Group II Loans, as applicable, due during the related
                           Due Period;

                  (2)      the principal portion of repurchase proceeds received
                           with respect to the Group I Loans or Group II Loans,
                           as applicable, which were repurchased as permitted or
                           required by this Agreement during the related
                           Prepayment Period; and

                  (3)      any other unscheduled payments of principal which
                           were received on the Group I Loans or Group II Loans,
                           as applicable, during the related Prepayment Period,
                           other than Payoffs, Curtailments or Liquidation
                           Principal.

                  Principal Prepayment: Any payment of principal on a Loan which
constitutes a Payoff or a Curtailment.

                  Principal Prepayment Amount: On any Distribution Date and for
any Loan Group, the sum of (i) Curtailments received during the related
Prepayment Period, (ii) Payoffs received during the related Prepayment Period
and (iii) Subsequent Recoveries received during the related Prepayment Period.

                  Pro Rata Allocation: On any Distribution Date with respect to
(i) the allocation of the principal portion of certain losses relating to a
Group I Loan or Group II Loan to the related Senior Certificates (other than the
Class I-A-2 Certificates) and/or to the Subordinate Certificates, as applicable,
pro rata, according to their respective aggregate Certificate Principal Balances
on such date of allocation; and (ii) the allocation of the interest portion of
certain losses relating to a Group I Loan or Group II Loan to the related Senior
Certificates and/or to the

                                     - 28 -
<PAGE>

Subordinate Certificates, as applicable, pro rata, first according to the
Interest Distribution Amounts due to such Classes on such date of allocation in
reduction thereof until the amount accrued but unpaid on such Distribution Date
has been reduced to zero and then, pro rata, according to their respective
aggregate Certificate Principal Balances on such date of allocation in reduction
thereof until the Certificate Principal Balances thereof have been reduced to
zero.

                  Protected Account: An account or accounts established and
maintained for the benefit of the Certificateholders by each Servicer with
respect to the related Loans and with respect to REO Property pursuant to the
applicable Servicing Agreement.

                  Purchase Obligation: An obligation of the Depositor or the
Seller to repurchase Loans under the circumstances and in the manner provided in
Section 2.3.

                  Purchase Price: With respect to any Loan to be purchased
pursuant to a Purchase Obligation, or any Loan to be purchased or repurchased
relating to an REO Property, and as confirmed by an Officers' Certificate from
the Master Servicer to the Trustee and the Securities Administrator, an amount
equal to the sum of (i) 100% of the Principal Balance thereof as of the date of
purchase (or in the case of an REO Property being purchased as provided in
Section 9.1, 100% of the fair market value of such REO Property), (ii) in the
case of (x) a Loan, accrued interest on such Principal Balance at the applicable
Net Mortgage Rate from the date interest was last paid by the related Mortgagor
or the date an Advance by the applicable Servicer or the Master Servicer, which
payment or Advance had as of the date of purchase been distributed pursuant to
Section 4.1, 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
Principal Balance at the applicable Net Mortgage Rate from the date interest was
last paid by the related Mortgagor or the date an Advance by the applicable
Servicer or the Master 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 in accordance with the applicable Servicing Agreement,
(iii) any unreimbursed Servicing Advances and Advances (including Nonrecoverable
Advances) and any unpaid Servicing Fees allocable to such Loan or REO Property
and (iv) in the case of a Loan required to be purchased pursuant to Section 2.3,
expenses reasonably incurred or to be incurred by the Master Servicer, the
Servicers, the Trustee or the Securities Administrator in respect of the breach
or defect giving rise to a Purchase Obligation and any costs and damages
incurred by the Trust Fund in connection with any violation by any such Loan of
any predatory or abusive lending law.

                  Rating Agency: Initially, each of Fitch and Moody's;
thereafter, each nationally recognized statistical rating organization that has
rated the Certificates at the request of the Depositor, or their respective
successors in interest.

                  Ratings: As of any date of determination, the ratings, if any,
of the Certificates as assigned by each Rating Agency.

                                     - 29 -
<PAGE>

                  Realized Loss: With respect to any Distribution Date and any
Liquidated Loan which became a Liquidated Loan during the related Prepayment
Period, the sum of (i) the Principal Balance of such Loan remaining outstanding
(after all recoveries of principal, including net Liquidation Proceeds, have
been applied thereto) and the principal portion of Nonrecoverable Advances with
respect to such Loan which have been reimbursed from amounts received in respect
of the Loans in such Loan Group other than the related Loan, and (ii) the
accrued interest on such Loan remaining unpaid and the interest portion of
Nonrecoverable Advances with respect to such Loan which have been reimbursed
from amounts received in respect of the Loans in such Loan Group other than the
related Loan. The amounts described in clause (i) shall be the principal portion
of Realized Losses and the amounts described in clause (ii) shall be the
interest portion of Realized Losses. For any Distribution Date and any Loan
which is not a Liquidated Loan, the amount of any Bankruptcy Loss incurred with
respect to such Loan as of the related Due Date shall be treated as a Realized
Loss allocable to principal.

                  Record Date: With respect to each Distribution Date and each
Certificate other than the Group I Senior Certificates, the last Business Day of
the month immediately preceding the month of the related Distribution Date; and
with respect to each Distribution Date and the Group I Senior Certificates, the
Business Day prior to the related Distribution Date.

                  Reference Banks: 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 Securities Administrator
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
Securities Administrator.

                  Regular Interest Certificates: The Certificates, other than
the Class R Certificates.

                  Regulation S Permanent Global Certificate: As defined in
Section 5.1.

                  Regulation S Temporary Global Certificate: As defined in
Section 5.1.

                  Release Date: The 40th day after the later of (i) commencement
of the offering of the Certificates and (ii) the Closing Date.

                  Relief Act: The Servicemembers Relief Act of 2003, as amended,
or similar state laws.

                  Relief Act Interest Shortfall: With respect to any
Distribution Date and a Loan, any reduction in the amount of interest
collectible on such Loan for the most recently ended calendar month immediately
preceding such Distribution Date 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.

                                     - 30 -
<PAGE>

                  REMIC Opinion: An Opinion of Counsel stating that, under the
REMIC Provisions, any contemplated action will not cause any REMIC to fail to
qualify as a REMIC or 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).

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

                  REMIC Regular Interests: Any of the REMIC I Regular Interests
or Regular Interest Certificates.

                  REMIC I: The segregated pool of assets, with respect to which
a REMIC election is to be made, consisting of: (i) the Loans (exclusive of
payments of principal and interest due on or before the Cut-off Date, if any,
received by the Master Servicer which shall not constitute an asset of the Trust
Fund) as from time to time are subject to this Agreement and all payments under
and proceeds of such Loans (exclusive of any late payment charges received on
the Loans), together with all documents included in the related Mortgage File,
subject to Section 2.1; (ii) such funds or assets as from time to time are
deposited in the Distribution Account and belonging to the Trust Fund; (iii) any
REO Property in respect of a Group I Loan or a Group II Loan; (iv) the primary
hazard insurance policies, if any, the primary insurance policies, if any, and
all other insurance policies with respect to the Loans; and (v) the Depositor's
interest in respect of the representations and warranties made by the Seller in
the Mortgage Loan Purchase Agreement as assigned to the Trustee pursuant to
Section 2.1 hereof. Notwithstanding the foregoing, however, REMIC I specifically
excludes the Reserve Fund, the Cap Contract and any payments made thereunder.

                  REMIC I Regular Interests: Any of the separate
non-certificated beneficial ownership interests in REMIC I (as defined in the
Preliminary Statement) issued hereunder and designated as a Regular Interest in
REMIC I. Each REMIC I Regular Interest shall accrue interest at the related
Uncertificated REMIC I Pass-Through 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 Principal
Balance as set forth in the Preliminary Statement hereto.

                  REMIC I Subordinate Balance Ratio: The ratio among the
Uncertificated Principal Balances of each of the REMIC I Regular Interests
ending with the designation "SUB," equal to the ratio between:

                  (1) the excess of (x) the aggregate Scheduled Principal
Balance of the Group I Loans over (y) the aggregate Certificate Principal
Balance of the Group I Senior Certificates (other than the Class I-A-2
Certificates).

                  (2) the excess of (x) the aggregate Scheduled Principal
Balance of the Group II Loans over (y) the aggregate Certificate Principal
Balance of the Group II Senior Certificates.

                                     - 31 -
<PAGE>

                  REMIC II: The pool of assets consisting of the REMIC I Regular
Interests and all payments of principal or interest on or with respect to the
REMIC I Regular Interests after the Cut-Off Date.

                  REMIC II Regular Interests: Any of the separate
non-certificated beneficial ownership interests in REMIC II (as defined in the
Preliminary Statement) issued hereunder and designated as a Regular Interest in
REMIC II. Each REMIC II Regular Interest shall accrue interest at the related
Uncertificated REMIC II Pass-Through 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 Principal
Balance as set forth in the Preliminary Statement hereto.

                  REMIC III: The pool of assets consisting of the REMIC II
Regular Interests and all payments of principal or interest on or with respect
to the REMIC II Regular Interests after the Cut-Off Date.

                  REMIC III Certificates: The Group I Senior Certificates, Group
II Senior Certificates, Subordinate Certificates and the Class R Certificates.

                  Remittance Report: A report by the Securities Administrator
pursuant to Section 4.6.

                  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 Scheduled Principal
Balance of such REO Property (or, in the case of the first such calendar month,
of the related Loan, if appropriate) as of the close of business on the
Distribution Date in such calendar month.

                  REO Property: A Mortgaged Property, title to which has been
acquired by a Servicer on behalf of the Trust Fund through foreclosure, deed in
lieu of foreclosure or otherwise.

                  Reserve Fund: The separate trust account created and
maintained by the Securities Administrator pursuant to 3.25 of this Agreement.

                  Residual Certificateholder: The registered Holder of a Class R
Certificate.

                  Residual Certificates: The Class R Certificates. Components
R-1, R-2 and R-3 of the Class R Certificates are hereby designated as the sole
Class of "residual interests" in each of REMIC I, REMIC II and REMIC III.

                  Responsible Officer: When used with respect to the Trustee,
any officer in the corporate trust department or similar group of the Trustee
with direct responsibility for the administration of this Agreement and also,
with respect to a particular corporate trust matter, any other officer to whom
such matter is referred because of his or her knowledge of and familiarity

                                     - 32 -
<PAGE>

with the particular subject. When used with respect to the Master Servicer or
the Securities Administrator, 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, any Assistant Controller or any other
officer customarily performing functions similar to those performed by any of
the above-designated officers and in each case having direct responsibility for
the administration of this Agreement, and also, with respect to a particular
matter, any other officer to whom such matter is referred because of such
officer's knowledge of and familiarity with the particular subject. When used
with respect to the Depositor or any other Person, the Chairman or Vice-Chairman
of the Board of Directors, the Chairman or Vice-Chairman of any executive
committee of the Board of Directors, the President, any Vice-President, the
Secretary, any Assistant Secretary, the Treasurer, any Assistant Treasurer, or
any other officer of the Depositor customarily performing functions similar to
those performed by any of the above-designated officers and also, with respect
to a particular matter, any other officer 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. provided, that at any time it is a Rating Agency.

                  Scheduled Principal Balance: With respect to any Loan and a
Due Date, the unpaid principal balance of such Loan as specified in the
amortization schedule (before any adjustment to such schedule by reason of
bankruptcy or similar proceeding or any moratorium or similar waiver or grace
period) for such Due Date, after giving effect to any previously applied
Curtailments, the payment of principal on such Due Date and any reduction of the
Principal Balance of such Loan by a bankruptcy court, irrespective of any
delinquency in payment by the related Mortgagor.

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

                  Securities Administrator: As of the Closing Date, Wells Fargo
Bank, National Association and thereafter, its respective successors in interest
who meet the qualifications of this Agreement. The Securities Administrator and
the Master Servicer shall at all times be the same Person.

                  Seller: DB Structured Products, Inc., or its successor in
interest, in its capacity as seller under the Mortgage Loan Purchase Agreement
and in its capacity as assignor under the Assignment Agreements.

                  Senior Interest Shortfall Amount: For any Distribution Date
and the Group I Senior Certificates and Group II Senior Certificates will be
equal to that amount by which the Interest Distribution Amount payable to the
related Senior Certificates on such Distribution Date exceeds the Group I
Available Distribution Amount or Group II Available Distribution Amount, as
applicable.

                                     - 33 -
<PAGE>

                  Senior Liquidation Amount: For any Distribution Date and the
Group I Loans and Group II Loans, the aggregate with respect to each related
Loan which became a Liquidated Loan during the related Prepayment Period, of the
lesser of: (i) the related Senior Percentage of the Principal Balance of such
Loan, and (ii) the related Senior Prepayment Percentage of the Liquidation
Principal with respect to such Loan.

                  Senior Percentage: As of the Closing Date, approximately
94.00% for the Group I Loans, and 94.00% for the Group II Loans; thereafter,
with respect to a Group I Loan and Group II Loan for any Distribution Date, the
percentage equivalent of a fraction, the numerator of which is the aggregate
Certificate Principal Balances of the Senior Certificates (other than the Class
I-A-2 Certificates), as applicable, immediately preceding such Distribution Date
and the denominator of which is the aggregate Scheduled Principal Balance of the
Loans in such Loan Group, in each case as of the first day of the related Due
Period.

                  Senior Prepayment Percentage: For Loan Group I and Loan Group
         II and any Distribution Date, the percentage indicated in the following
         table:
<TABLE>
<CAPTION>

              DISTRIBUTION DATE OCCURRING IN                                    SENIOR PREPAYMENT PERCENTAGE
              ------------------------------                                    ----------------------------
<S>                                                          <C>
February 2005 through January 2010........................   100%
February 2010 through January 2011........................   Senior Percentage + 70% of the Subordinate Percentage
February 2011 through January 2012........................   Senior Percentage + 60% of the Subordinate Percentage
February 2012 through January 2013........................   Senior Percentage + 40% of the Subordinate Percentage
February 2013 through January 2014........................   Senior Percentage + 20% of the Subordinate Percentage
February 2014 and thereafter..............................   Senior Percentage
</TABLE>

Notwithstanding the foregoing, the Senior Prepayment Percentage with respect to
the Group I Loans and Group II Loans will be equal to 100% on any Distribution
Date on which (i) the Aggregate Senior Percentage for that Distribution Date
exceeds the Aggregate Senior Percentage as of the Closing Date or (ii) the
aggregate Scheduled Principal Balance of the Group I Loans and Group II Loans
(including Group I Loans and Group II Loans in bankruptcy, foreclosure and
related REO Property) (averaged over the preceding six month period) as a
percentage of the Aggregate Subordinate Amount is equal to or greater than 50%
as of such Distribution Date, or cumulative Realized Losses on the Group I Loans
and Group II Loans allocated to the Subordinate Certificates are greater than
the following amounts:
<TABLE>
<CAPTION>

                                                                     PERCENTAGE OF THE AGGREGATE SUBORDINATE
              DISTRIBUTION DATE OCCURRING IN                              AMOUNT AS OF THE CUT-OFF DATE
              ------------------------------                 ---------------------------------------------------
<S>                                                          <C>
February 2010 through January 2011...........................                          30%
February 2011 through January 2012...........................                          35%
February 2012 through January 2013...........................                          40%
February 2013 through January 2014...........................                          45%
February 2014 and thereafter.................................                          50%
</TABLE>

                                     - 34 -
<PAGE>

                  If on any Distribution Date the allocation to the Group I
Senior Certificates (other than the Class I-A-2 Certificates) or Group II Senior
Certificates of Principal Prepayments in the percentage required would reduce
the sum of the aggregate Certificate Principal Balances of the Group I Senior
Certificates (other than the Class I-A-2 Certificates) or Group II Senior
Certificates below zero, the Senior Prepayment Percentage for such Distribution
Date shall be limited to the percentage necessary to reduce such sum to zero.

                  Senior Principal Distribution Amount: With respect to any
Distribution Date and a Loan Group, the sum of the following for that
Distribution Date:

                  (1) the related Senior Percentage of the related Principal
Distribution Amount;

                  (2) the related Senior Prepayment Percentage of the related
Principal Prepayment Amount; and

                  (3) the related Senior Liquidation Amount.

                  Servicer: National City, GreenPoint, M&T or SPS, as
applicable, or any successor appointed under the applicable Servicing Agreement.

                  Servicer Remittance Date: With respect to each Distribution
Date shall mean (i) with respect to National City, M&T and SPS, the 18th day of
the calendar month in which such Distribution Date occurs or, if such 18th day
is not a Business Day, the Business Day immediately preceding such 18th day and
(ii) with respect to GreenPoint, the 10th day of the calendar month in which
such Distribution Date occurs or, if such 10th day is not a Business Day, the
Business Day immediately preceding such 10th day.

                  Servicing Advances: The customary reasonable and necessary
"out-of-pocket" costs and expenses incurred prior to or on or after the Cut-Off
Date (the amounts incurred prior to the Cut-Off Date are identified on Schedule
3 hereto) by the applicable Servicer in connection with a default, delinquency
or other unanticipated event by the applicable Servicer in the performance of
its servicing obligations, including, but not limited to, the cost of (i) the
preservation, restoration and protection of a Mortgaged Property, (ii) any
enforcement or judicial proceedings, including foreclosures, in respect of a
particular Loan and (iii) the management (including reasonable fees in
connection therewith) and liquidation of any REO Property. No Servicer shall be
required to make any Servicing Advance in respect of a Loan or REO Property
that, in the good faith business judgment of such Servicer, would not be
ultimately recoverable from related Insurance Proceeds or Liquidation Proceeds
on such Loan or REO Property as provided herein.

                  Servicing Agreement: The National City Servicing Agreement,
the GreenPoint Servicing Agreement, the M&T Servicing Agreement or the SPS
Servicing Agreement, each as modified by the related Assignment Agreement.

                  Servicing Fee: With respect to each Loan and for any
Distribution Date, an amount equal to one twelfth of the product of the related
Servicing Fee Rate multiplied by the Scheduled Principal Balance of such Loan as
of the Due Date in the month preceding the month

                                     - 35 -
<PAGE>

of such Distribution Date. The Servicing Fee is payable solely from collections
of interest on the Loans or as otherwise provided in the related Servicing
Agreement.

                  Servicing Fee Rate: As set forth in the related Servicing
Agreement.

                  Servicing Officer: Any individual involved in, or responsible
for, the administration and servicing of the Loans whose name and specimen
signature appear on a list of servicing officers furnished to the Trustee, the
Depositor and the Securities Administrator on the Closing Date by each Servicer
and the Master Servicer, as such lists may from time to time be amended.

                  Special Hazard Coverage: As of the Cut-Off Date, $7,508,253.17
with respect to the Group I Loans and $1,295,286.86 with respect to the Group II
Loans. On each Anniversary, the Special Hazard Coverage will be reduced to an
amount equal to the lesser of:

                  (1)      the greatest of:

                           (a)      the aggregate Principal Balance of the Group
                                    I Loans and Group II Loans located in the
                                    zip code containing the largest aggregate
                                    Principal Balance of the Group I Loans and
                                    Group II Loans;

                           (b)      1.0% of the aggregate Principal Balance of
                                    the Group I Loans and Group II Loans; and

                           (c)      twice the Principal Balance of the largest
                                    Group I Loan or Group II Loan, calculated as
                                    of the Due Date in the immediately preceding
                                    month (after giving effect to all scheduled
                                    payments whether or not received); and

                  (2)      the Special Hazard Coverage as of the Cut-Off Date as
                           reduced by the Special Hazard Losses allocated to the
                           Certificates related to the Group I Loans and Group
                           II Loans since the Cut-Off Date.

                  Special Hazard Loss: The occurrence of any direct physical
loss or damage to a Mortgaged Property relating to a Liquidated Loan, as
reported by the related Servicer, not covered by a standard hazard maintenance
policy with extended coverage which is caused by or results from any cause
except: (i) fire, lightning, windstorm, hail, explosion, riot, riot attending a
strike, civil commotion, vandalism, aircraft, vehicles, smoke, sprinkler
leakage, except to the extent of that portion of the loss which was uninsured
because of the application of a co-insurance clause of any insurance policy
covering these perils; (ii) normal wear and tear, gradual deterioration,
inherent vice or inadequate maintenance of all or part thereof; (iii) errors in
design, faulty workmanship or materials, unless the collapse of the property or
a part thereof ensues and then only for the ensuing loss; (iv) nuclear reaction
or nuclear radiation or radioactive contamination, all whether controlled or
uncontrolled and whether such loss be direct or indirect, proximate or remote or
be in whole or in part caused by, contributed to or aggravated by a peril
covered by this definition of Special Hazard Loss; (v) hostile or warlike action
in time of peace or war, including action in hindering, combating or defending
against an actual, impending or expected attack (a) by any government or
sovereign power (dejure or defacto), or by an authority

                                     - 36 -
<PAGE>

maintaining or using military, naval or air forces, (b) by military, naval or
air forces, or (c) by an agent of any such government, power, authority or
forces; (vi) any weapon of war employing atomic fission or radioactive force
whether in time of peace or war; (vii) insurrection, rebellion, revolution,
civil war, usurped power or action taken by governmental authority in hindering,
combating or defending against such occurrence; or (viii) seizure or destruction
under quarantine or customs regulations, or confiscation by order of any
government or public authority.

                  SPS: Select Portfolio Servicing, Inc., or any successor
thereto.

                  SPS Servicing Agreement: The Servicing Agreement, dated
January 1, 2005, between the Seller and SPS (as modified pursuant to the related
Assignment Agreement).

                  Startup Day: With respect to each REMIC, the day designated as
such pursuant to Section 10.1(b) hereof.

                  Subordinate Amount: For the Group I Loans and Group II Loans
on any date of determination, the excess of the aggregate Scheduled Principal
Balance of the related Loans as of such date over the sum of (x) the aggregate
Certificate Principal Balance of the Group I Senior Certificates (other than the
Class I-A-2 Certificates) and Group II Senior Certificates then outstanding.

                  Subordinate Certificates: The Class M, Class B-1, Class B-2,
Class B-3, Class B-4 and Class B-5 Certificates.

                  Subordinate Liquidation Amount: For a Distribution Date and
the Group I Loans and Group II Loans, the excess, if any, of (i) the aggregate
Liquidation Principal for all Loans in such Loan Group which became Liquidated
Loans during the related Prepayment Period, over (ii) the related Senior
Liquidation Amount for such Distribution Date received during the related
Prepayment Period.

                  Subordinate Percentage: For any Distribution Date and the
Group I Loans and Group II Loans, 100% minus the related Senior Percentage for
such date. As of the Closing Date, the Subordinate Percentage will be 6.00% with
respect to the Group I Loans and 6.00% with respect to the Group II Loans.

                  Subordinate Prepayment Percentage: For any Distribution Date,
100% minus the related Senior Prepayment Percentage. As of the Closing Date, the
Subordinate Prepayment Percentage will be 0% for the Group I Loans and 0% for
the Group II Loans.

                  Subordinate Principal Amount: With respect to any Distribution
Date and the Group I Loans and Group II Loans, an amount equal to the sum of the
following for that Distribution Date:

                  (1)  the related Subordinate Percentage of the related
                       Principal Distribution Amount;

                  (2)  the related Subordinate Principal Prepayment Amount;
                       and

                                     - 37 -
<PAGE>

                  (3)  the related Subordinate Liquidation Amount.

                  Subordinate Principal Prepayment Amount: For any Distribution
Date and the Group I Loans and Group II Loans, the related Subordinate
Prepayment Percentage of the Principal Prepayment Amount for such Distribution
Date.

                  Subordination Level: On any specified date and any Class of
Subordinate Certificates, the percentage obtained by dividing: (1) the sum of
the aggregate Certificate Principal Balances of all Classes of Subordinate
Certificates which are subordinate in right of payment to such Class as of such
date, before giving effect to distributions of principal or allocations of
related Realized Losses on such date; by (2) the sum of the aggregate
Certificate Principal Balances of all Classes of Certificates relating to the
Group I Loans or Group II Loans as of such date, before giving effect to
distributions of principal or allocations of related Realized Losses on such
date.

                  Subsequent Recoveries: With respect to any Distribution Date,
all amounts received during the related Prepayment Period by the related
Servicer specifically related to a defaulted Loan or disposition of an REO
Property prior to the related Prepayment Period that resulted in a Realized
Loss, after the liquidation or disposition of such defaulted Loan.

                  Substitute Loan: A mortgage loan substituted for a Deleted
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 Scheduled Principal Balance of the
Deleted Loan as of the Due Date in the calendar month during which the
substitution occurs, (ii) have a Mortgage Interest Rate not less than (and not
more than one percentage point in excess of) the Mortgage Interest Rate of the
Deleted Loan, (iii) have a remaining term to maturity not greater than (and not
more than one year less than) that of the Deleted Loan, (iv) have the same Due
Date as the Due Date on the Deleted Loan, (v) 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 Loan as of such date, (vi) have a risk grading at least equal to the
risk grading assigned on the Deleted Loan, (vii) is a "qualified mortgage" as
defined in the REMIC Provisions and (viii) conform to each representation and
warranty set forth in Section 6 of the Mortgage Loan Purchase Agreement
applicable to the Deleted Loan. In the event that one or more mortgage loans are
substituted for one or more Deleted Loans, the amounts described in clause (i)
hereof shall be determined on the basis of aggregate principal balances, the
Mortgage Interest Rates described in clause (ii) hereof shall be determined on
the basis of weighted average Mortgage Interest Rates, the terms described in
clause (iii) hereof shall be determined on the basis of weighted average
remaining term to maturity, the Loan-to-Value Ratios described in clause (v)
hereof shall be satisfied as to each such mortgage loan, the risk gradings
described in clause (vi) 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 (vii) hereof must be
satisfied as to each Substitute Loan or in the aggregate, as the case may be.

                  Tax Matters Person: The Holder of the Class R Certificates
issued hereunder or any Permitted Transferee of such Class R Certificateholder
shall be the initial "tax matters

                                     - 38 -
<PAGE>

person" for REMIC I, REMIC II and REMIC III within the meaning of Section
6231(a)(7) of the Code.

                  Termination Price: As defined in Section 9.1.

                  Terminator: As defined in Section 9.1.

                  Transferee: Any Person who is acquiring by an Ownership
Interest in a Junior Subordinate Certificate or Residual Certificate.

                  Trust Fund: Collectively, all of the assets of REMIC I, REMIC
II, REMIC III, the Cap Contract, the Reserve Fund and any amounts on deposit
therein and any proceeds thereof.

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

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

                  Uncertificated Accrued Interest: With respect to each REMIC
Regular Interest on each Distribution Date, an amount equal to one month's
interest at the related Uncertificated Pass-Through Rate on the Uncertificated
Principal Balance or Uncertificated Notional Amount, as applicable, of such
REMIC Regular Interest. In each case, Uncertificated Accrued Interest will be
reduced by any Prepayment Interest Shortfalls and shortfalls resulting from
application of the Relief Act.

                  Uncertificated Principal Balance: With respect to each REMIC
Regular Interest, the principal amount of such REMIC Regular Interest
outstanding as of any date of determination. As of the Closing Date, the
Uncertificated Principal Balance of each REMIC Regular Interest shall equal the
amount set forth in the Preliminary Statement hereto as its initial
Uncertificated Principal Balance. On each Distribution Date, the Uncertificated
Principal Balance of each REMIC Regular Interest shall be reduced by all
distributions of principal made on such REMIC Regular Interest on such
Distribution Date pursuant to Sections 4.1 and 4.3, as applicable and, if and to
the extent necessary and appropriate, shall be further reduced on such
Distribution Date by Realized Losses, as provided in Sections 4.2. The
Uncertificated Principal Balance of each REMIC Regular Interest shall never be
less than zero.

                  Uncertificated REMIC I Pass-Through Rate: With respect to
REMIC I Regular Interest LT-1GRP, the weighted average of the Net Mortgage Rates
on the Group I Loans for that Distribution Date. With respect to REMIC I Regular
Interest LT-2GRP, the weighted average of the Net Mortgage Rates on the Group II
Loans for that Distribution Date. With respect to REMIC I Regular Interest
LT-1SUB, REMIC I Regular Interest LT-2SUB, REMIC I Regular Interest LT-ZZZ and
REMIC I Regular Interest LT-R, the weighted average of the Net Mortgage Rates on
the Group I Loans and the Group II Loans for that Distribution Date.

                  Uncertificated REMIC II Pass-Through Rate: With respect to
REMIC II Regular Interest LT-IA, the weighted average of the Uncertificated
REMIC I Pass-Through Rate on REMIC I Regular Interest LT-1GRP, weighted on the
basis of the Uncertificated Principal Balance of such REMIC I Regular Interest.
With respect to REMIC II Regular Interest LT-IIA

                                     - 39 -
<PAGE>

and REMIC II Regular Interest LT-R, the weighted average of the Uncertificated
REMIC I Pass-Through Rate on REMIC I Regular Interest LT-2GRP, weighted on the
basis of the Uncertificated Principal Balance of such REMIC I Regular Interest.
With respect to REMIC II Regular interest LT-ISUB and REMIC II Regular Interest
LT-IISUB, the weighted average of the Uncertificated REMIC I Pass-Through Rate
on REMIC I Regular Interest LT-1SUB (subject to a cap and a floor equal to the
weighted average of the Net Mortgage Rates on the Group I Loans) and the
Uncertificated REMIC I Pass-Through Rate on REMIC I Regular Interest LT-2SUB
(subject to a cap and a floor equal to the weighted average of the Net Mortgage
Rates on the Group II Loans), weighted on the basis of the Uncertificated
Principal Balance of each such REMIC I Regular Interest.

                  Underwriter: Deutsche Bank Securities Inc.

                  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 3.9.

                  U.S. Person: A citizen or resident of the United States, a
corporation or partnership (including an entity treated as a corporation or
partnership for United States federal income tax purposes) created or organized
in, or under the laws of, the United States or any state thereof or the District
of Columbia (except, in the case of a partnership, to the extent provided in
regulations) or an estate whose income is subject to United States federal
income tax regardless of its source, or a trust if a court within the United
States is able to exercise primary supervision over the administration of the
trust and one or more such U.S. 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 1 of subchapter J of chapter 1 of the Code), and
which was treated as a U.S. Person on August 20, 1996 may elect to continue to
be treated as a U.S. Person notwithstanding the previous sentence.

                  Wells Fargo: Wells Fargo Bank, National Association, or any
successor thereto.

                  Section 1.2 ALLOCATION OF CERTAIN INTEREST SHORTFALL.

                  For purposes of calculating the amount of Uncertificated
Accrued Interest for the REMIC I Regular Interests for any Distribution Date,
the aggregate amount of any Unpaid Interest Shortfalls incurred in respect of
the Loans for any Distribution Date shall be allocated to the REMIC I Regular
Interests, pro rata, to the extent of one month's interest at the then
applicable respective Uncertificated REMIC I Pass-Through Rate on the
Uncertificated Principal Balance of each such REMIC I Regular Interest.

                  For purposes of calculating the amount of Uncertificated
Accrued Interest for the REMIC II Regular Interests for any Distribution Date,
the aggregate amount of any Unpaid Interest Shortfalls incurred in respect of
the Loans for any Distribution Date shall be allocated to the REMIC II Regular
Interests, pro rata, to the extent of one month's interest at the then
applicable respective Uncertificated REMIC II Pass-Through Rate on the
Uncertificated Principal Balance of each such REMIC II Regular Interest.

                                     - 40 -
<PAGE>

                                   ARTICLE II

                            CONVEYANCE OF TRUST FUND;
                        ORIGINAL ISSUANCE OF CERTIFICATES

                  Section 2.1 CONVEYANCE OF TRUST FUND. The Depositor,
concurrently with the execution and delivery hereof, does hereby transfer,
assign, set over and otherwise convey to the Trustee, on behalf of the Trust,
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 Loans identified on the Loan
Schedule, the rights of the Depositor under the Mortgage Loan Purchase Agreement
and the Assignment Agreements (including, without limitation the right to
enforce the obligations of the other parties thereto thereunder), 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 applicable Servicer on
or with respect to the Loans (other than payments of principal and interest due
on such Loans on or before the Cut-Off Date). The Depositor herewith delivers to
the Trustee executed copies of the Mortgage Loan Purchase Agreement, the
Servicing Agreements and the Assignment Agreements.

                  In connection with such transfer and assignment, the Depositor
does hereby deliver to, and deposit with the Custodian pursuant to the Custodial
Agreement the documents with respect to each Loan as described under Section 2
of the Custodial Agreement (the " Loan Documents"). In connection with such
delivery and as further described in the Custodial Agreement, the Custodian will
be required to review such Loan Documents and deliver to the Trustee, the
Depositor, the Master Servicer and the Seller certifications (in the forms
attached to the Custodial Agreement) with respect to such review with exceptions
noted thereon. In addition, the Depositor under the Custodial Agreement will
have to cure certain defects with respect to the Loan Documents for the related
Loans after the delivery thereof by the Depositor to the Custodian as more
particularly set forth therein.

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

                  The Depositor shall deliver or cause the related originator to
deliver to the related Servicer copies of all trailing documents required to be
included in the related Mortgage File at the same time the originals or
certified copies thereof are delivered to the Trustee or Custodian, such
documents including the mortgagee policy of title insurance and any Mortgage
Loan Documents upon return from the recording office. The Servicers shall not be
responsible for any custodian fees or other costs incurred in obtaining such
documents and the Depositor shall cause the Servicers to be reimbursed for any
such costs the Servicers may incur in connection with performing its obligations
under this Agreement.

                  The Mortgage Loans permitted by the terms of this Agreement to
be included in the Trust are limited to (i) Mortgage Loans (which the Depositor
acquired pursuant to the Mortgage Loan Purchase Agreement, which contains, among
other representations and warranties, a representation and warranty of the
Seller that no Mortgage Loan is a "High-Cost

                                     - 41 -
<PAGE>

Home Loan" as defined in the New Jersey Home Ownership Act effective November
27, 2003, as defined in the New Mexico Home Loan Protection Act effective
January 1, 2004) as defined in the Massachusetts Predatory Home Loan Practices
Act, effective November 7, 2004 (Mass. Ann. Laws Ch. 183C) or as defined in the
Indiana Home Loan Practices Act, effective January 1, 2005 (Ind. Code Ann.
Sections 24-9-1 through 24-9-9) and (ii) Qualified Substitute Mortgage Loans
(which, by definition as set forth herein and referred to in the Mortgage Loan
Purchase Agreement, are required to conform to, among other representations and
warranties, the representation and warranty of the Seller that no Qualified
Substitute Mortgage Loan is a "High-Cost Home Loan" as defined in the New Jersey
Home Ownership Act effective November 27, 2003, as defined in the New Mexico
Home Loan Protection Act effective January 1, 2004, as defined in the
Massachusetts Predatory Home Loan Practices Act, effective November 7, 2004
(Mass. Ann. Laws Ch. 183C) or as defined in the Indiana Home Loan Practices Act,
effective January 1, 2005 (Ind. Code Ann. Sections 24-9-1 through 24-9-9). The
Depositor and the Trustee on behalf of the Trust understand and agree that it is
not intended that any mortgage loan be included in the Trust that is a
"High-Cost Home Loan" as defined in the New Jersey Home Ownership Act effective
November 27, 2003, as defined in the New Mexico Home Loan Protection Act
effective January 1, 2004, as defined in the Massachusetts Predatory Home Loan
Practices Act, effective November 7, 2004 (Mass. Ann. Laws Ch. 183C) or as
defined in the Indiana Home Loan Practices Act, effective January 1, 2005 (Ind.
Code Ann. Sections 24-9-1 through 24-9-9).

                  Section 2.2 ACCEPTANCE BY TRUSTEE. The Trustee acknowledges
receipt, subject to the provisions of Section 2.1 hereof and Section 2 of the
Custodial Agreement, of the Loan Documents 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 (or
the Custodian on its behalf holds) and will hold such documents and the other
documents delivered to it constituting a Loan Document, and that it holds (or
the Custodian on its behalf 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.

                  Section 2.3 REPURCHASE OR SUBSTITUTION OF LOANS.

                  (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
a breach by the Seller of any representation, warranty or covenant under the
Mortgage Loan Purchase Agreement in respect of any Loan that materially and
adversely affects the value of such Loan or the interest therein of the
Certificateholders, the Trustee shall promptly notify the Seller of such defect,
missing document or breach and request that the Seller deliver such missing
document, cure such defect or breach within 60 days from the date the Seller was
notified of such missing document, defect or breach, and if the Seller 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
Seller under the Mortgage Loan Purchase Agreement to repurchase such Loan from
REMIC I at the Purchase Price within 90 days after the date on which the Seller
was notified of such missing document, defect or breach, if and to the extent
that the Seller is obligated to do so under the Mortgage Loan Purchase
Agreement. The Purchase Price for the repurchased Loan shall be deposited in the
Distribution Account and the Trustee, upon receipt of written certification from
the Securities Administrator of such deposit and receipt by the Custodian of a
properly completed

                                     - 42 -
<PAGE>

request for release for such Loan in the form of EXHIBIT 3 to the Custodial
Agreement, shall release or cause the Custodian to release to the Seller the
related Mortgage File and the Trustee shall execute and deliver such instruments
of transfer or assignment, in each case without recourse, representation or
warranty, as the Seller shall furnish to it and as shall be necessary to vest in
the Seller any Loan released pursuant hereto, and the Trustee shall not have any
further responsibility with regard to such Mortgage File. In lieu of
repurchasing any such Loan as provided above, if so provided in the Mortgage
Loan Purchase Agreement, the Seller may cause such Loan to be removed from REMIC
I (in which case it shall become a Deleted Loan) and substitute one or more
Substitute Loans in the manner and subject to the limitations set forth in
Section 2.3(b). It is understood and agreed that the obligation of the Seller to
cure or to repurchase (or to substitute for) any 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. Notwithstanding the foregoing, if the representation made by
the Seller in Section 6(xxiv) of the Mortgage Loan Purchase Agreement is
breached, the Trustee shall enforce the obligation of the Seller to repurchase
such Loan at the Purchase Price, or to provide a Substitute Loan (plus any costs
and damages incurred by the Trust Fund in connection with any violation by any
such Loan of any predatory or abusive lending law) within 90 days after the date
on which the Seller was notified of such breach.

                  In addition, promptly upon the earlier of discovery by the
Master Servicer or receipt of notice from the Servicer or the Seller to a
Responsible Officer of the Master Servicer of the breach of the representation
of the Seller set forth in Section 5(x) of the Mortgage Loan Purchase Agreement
which materially and adversely affects the interests of the Holders of the
Certificates in any Prepayment Charge, the Master Servicer shall promptly notify
the Seller and the Trustee of such breach. The Trustee shall enforce the
obligations of the Seller under the Mortgage Loan Purchase Agreement to remedy
such breach to the extent and in the manner set forth in the Mortgage Loan
Purchase Agreement.

                  (b) Any substitution of Substitute Loans for Deleted Loans
made pursuant to Section 2.3(a) must be effected prior to the date which is two
years after the Startup Day for REMIC I.

                  As to any Deleted Loan for which the Seller, substitutes a
Substitute Loan or Loans, such substitution shall be effected by the Seller
delivering to the Trustee or the Custodian on behalf of the Trustee, for such
Substitute 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 of the Custodial Agreement,
as applicable, together with an Officers' Certificate providing that each such
Substitute Loan satisfies the definition thereof and specifying the Substitution
Shortfall Amount (as described below), if any, in connection with such
substitution. The Custodian on behalf of the Trustee shall acknowledge receipt
of such Substitute Loan or Loans and, within ten Business Days thereafter,
review such documents and deliver to the Depositor, the Trustee and the Master
Servicer, with respect to such Substitute Loan or Loans, an initial
certification pursuant to the Custodial Agreement, with any applicable
exceptions noted thereon. Within one year of the date of substitution, the
Custodian on behalf of the Trustee shall deliver to the Depositor, the Trustee
and the Master Servicer a final certification pursuant to the Custodial
Agreement with respect to such Substitute Loan or Loans,

                                     - 43 -
<PAGE>

with any applicable exceptions noted thereon. Monthly Payments due with respect
to Substitute Loans in the month of substitution are not part of REMIC I and
shall be retained by the Seller. For the month of substitution, distributions to
Certificateholders shall reflect the Monthly Payment due on such Deleted Loan on
or before the Due Date in the month of substitution, and the Seller shall
thereafter be entitled to retain all amounts subsequently received in respect of
such Deleted Loan. The Depositor shall give or cause to be given written notice
to the Certificateholders that such substitution has taken place, shall amend
the Loan Schedule to reflect the removal of such Deleted Loan from the terms of
this Agreement and the substitution of the Substitute Loan or Loans and shall
deliver a copy of such amended Loan Schedule to the Trustee and the Master
Servicer. Upon such substitution, such Substitute Loan or Loans shall constitute
part of the Trust Fund 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 herein or in the Mortgage Loan
Purchase Agreement.

                  For any month in which the Seller substitutes one or more
Substitute Loans for one or more Deleted Loans, the Master Servicer shall
determine the amount (the "Substitution Shortfall Amount"), if any, by which the
aggregate Purchase Price of all such Deleted Loans exceeds the aggregate of, as
to each such Substitute Loan, the Scheduled Principal Balance thereof as of the
Due Date in the month of substitution, together with one month's interest on
such Scheduled Principal Balance at the applicable Net Mortgage Rate, plus all
outstanding Advances and Servicing Advances (including Nonrecoverable Advances)
related thereto. On the date of such substitution, the Seller shall deliver or
cause to be delivered to the Securities Administrator for deposit in the
Distribution Account an amount equal to the Substitution Shortfall Amount, if
any, and the Trustee or the Custodian on behalf of the Trustee, upon receipt of
the related Substitute Loan or Loans and certification by the Securities
Administrator of such deposit and receipt by the Custodian of a properly
completed request for release for such Loan in the form of EXHIBIT 3 to the
Custodial Agreement, shall release to the Seller the related Mortgage File or
Files and the Trustee shall execute and deliver such instruments of transfer or
assignment, in each case without recourse, representation or warranty, as the
Seller shall deliver to it and as shall be necessary to vest therein any Deleted
Loan released pursuant hereto.

                  In addition, the Seller shall obtain at its own expense and
deliver to the Trustee an Opinion of Counsel to the effect that such
substitution will not cause (a) any federal tax to be imposed on any 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 REMIC to fail
to qualify as a REMIC at any time that any Certificate is outstanding.

                  (c) Upon discovery by the Depositor, the Seller, the Master
Servicer or the Trustee that any 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 Seller shall repurchase or substitute one
or more Substitute Loans for the affected Loan within 90 days of the earlier of
discovery or receipt of such notice with respect to such affected Loan. Such
repurchase or substitution shall be made by (i) the Seller, if the affected
Loan's status as a non-qualified mortgage is or results from a breach of any
representation, warranty or covenant made by the Seller under the Mortgage Loan
Purchase Agreement or (ii) the Depositor, if the affected Loan's

                                     - 44 -
<PAGE>

status as a non-qualified mortgage does not result from a breach of
representation or warranty. Any such repurchase or substitution shall be made in
the same manner as set forth in Section 2.3(a). The Trustee shall reconvey to
the Seller or the Depositor the Loan to be released pursuant hereto in the same
manner, and on the same terms and conditions, as it would a Loan repurchased for
breach of a representation or warranty.

                  (d) Within 90 days of the earlier of discovery by the Master
Servicer or receipt of notice by the Master Servicer of the breach of any
representation, warranty or covenant of the Master Servicer set forth in Section
2.5 which materially and adversely affects the interests of the related
Certificateholders in any Loan or Prepayment Charge, the Master Servicer shall
cure such breach in all material respects.

                  Section 2.4 AUTHENTICATION AND DELIVERY OF CERTIFICATES;
DESIGNATION OF CERTIFICATES AS REMIC REGULAR AND RESIDUAL INTERESTS.

                  (a) The Trustee acknowledges the transfer to the extent
provided herein and assignment to it of the Trust Fund and, concurrently with
such transfer and assignment, has caused the Securities Administrator to execute
and authenticate and has delivered to or upon the order of the Depositor, in
exchange for the Trust Fund, Certificates evidencing the entire ownership of the
Trust Fund.

                  (b) This Agreement shall be construed so as to carry out the
intention of the parties that each of REMIC I, REMIC II and REMIC III be treated
as a REMIC at all times prior to the date on which the Trust Fund is terminated.
The "regular interests" (within the meaning of Section 860G(a)(1) of the Code)
in REMIC III shall consist of the Class I-A-1, Class I-A-2, Class I-A-3, Class
I-A-4, Class II-A-1, Class M, Class B-1, Class B-2, Class B-3, Class B-4 and
Class B-5 Certificates. The "residual interest" (within the meaning of Section
860G(a)(2) of the Code) in REMIC III shall consist of Component R-3. The
"regular interests" (within the meaning of Section 860G(a)(1) of the Code) of
REMIC II shall consist of the REMIC II Regular Interests. The "residual
interest" (within the meaning of Section 860(G)(a)(2) of the Code) of REMIC II
shall consist of Component R-2. The "regular interests" (within the meaning of
Section 860G(a)(1) of the Code) of REMIC I shall consist of the REMIC I Regular
Interests. The "residual interest" (within the meaning of Section 860(G)(a)(2)
of the Code) of REMIC I shall consist of Component R-1.

                  Section 2.5 REPRESENTATIONS AND WARRANTIES OF THE MASTER
SERVICER. The Master Servicer hereby represents, warrants and covenants to the
Trustee, for the benefit of each of the Trustee, the Certificateholders and the
Depositor that as of the Closing Date or as of such date specifically provided
herein:

                    (i) The Master Servicer is a national banking association
               duly formed, validly existing and in good standing under the laws
               of the United States of America and is duly authorized and
               qualified to transact any and all business contemplated by this
               Agreement to be conducted by the Master Servicer;

                                     - 45 -
<PAGE>

                    (ii) The Master Servicer has the full power and authority to
               conduct its business as presently conducted by it and to execute,
               deliver and perform, and to enter into and consummate, all
               transactions contemplated by this Agreement. The Master Servicer
               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 Depositor and the Trustee, constitutes a legal,
               valid and binding obligation of the Master Servicer, enforceable
               against it in accordance with its terms except as the
               enforceability thereof may be limited by bankruptcy, insolvency,
               reorganization or similar laws affecting the enforcement of
               creditors' rights generally and by general principles of equity;

                    (iii) The execution and delivery of this Agreement by the
               Master Servicer, the consummation by the Master Servicer of any
               other of the transactions herein contemplated, and the
               fulfillment of or compliance with the terms hereof are in the
               ordinary course of business of the Master Servicer and will not
               (A) result in a breach of any term or provision of charter and
               by-laws of the Master Servicer or (B) conflict with, result in a
               breach, violation or acceleration of, or result in a default
               under, the terms of any other material agreement or instrument to
               which the Master Servicer is a party or by which it may be bound,
               or any statute, order or regulation applicable to the Master
               Servicer of any court, regulatory body, administrative agency or
               governmental body having jurisdiction over the Master Servicer;
               and the Master Servicer is not a party to, bound by, or in breach
               or violation of any indenture or other agreement or instrument,
               or subject to or in violation of any statute, order or regulation
               of any court, regulatory body, administrative agency or
               governmental body having jurisdiction over it, which materially
               and adversely affects or, to the Master Servicer's knowledge,
               would in the future materially and adversely affect, (x) the
               ability of the Master Servicer to perform its obligations under
               this Agreement or (y) the business, operations, financial
               condition, properties or assets of the Master Servicer taken as a
               whole;

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

                    (v) No litigation is pending against the Master Servicer
               that would materially and adversely affect the execution,
               delivery or enforceability of this Agreement or the ability of
               the Master Servicer to perform any of its other obligations
               hereunder in accordance with the terms hereof;

                    (vi) There are no actions or proceedings against, or
               investigations known to it of, the Master Servicer before any
               court, administrative or other tribunal (A) that might prohibit
               its entering into this Agreement, (B) seeking to prevent the
               consummation of the transactions contemplated by this Agreement
               or (C) that might prohibit or materially and adversely affect the
               performance by the Master Servicer of its obligations under, or
               validity or enforceability of, this Agreement; and

                                     - 46 -
<PAGE>

                    (vii) No consent, approval, authorization or order of any
               court or governmental agency or body is required for the
               execution, delivery and performance by the Master Servicer of, or
               compliance by the Master Servicer with, this Agreement or the
               consummation by it of the transactions contemplated by this
               Agreement, except for such consents, approvals, authorizations or
               orders, if any, that have been obtained prior to the Closing
               Date.

                  It is understood and agreed that the representations,
warranties and covenants set forth in this Section 2.5 shall inure to the
benefit of the Trustee, the Depositor and the Certificateholders.

                  Section 2.6 ESTABLISHMENT OF THE TRUST.

                  The Depositor does hereby establish, pursuant to the further
provisions of this Agreement and the laws of the State of New York, an express
trust to be known, for convenience, as "Deutsche Alt-A Securities, Inc.,
Mortgage Loan Trust, Series 2005-1" and does hereby appoint HSBC Bank USA,
National Association, as Trustee in accordance with the provisions of this
Agreement.

                                     - 47 -
<PAGE>

                                  ARTICLE III

               ADMINISTRATION AND SERVICING OF THE LOANS; ACCOUNTS

                  Section 3.1 MASTER SERVICER. The Master Servicer shall
supervise, monitor and oversee the obligation of the Servicers to service and
administer their respective Loans in accordance with the terms of the applicable
Servicing Agreement and shall have full power and authority to do any and all
things which it may deem necessary or desirable in connection with such master
servicing and administration. In performing its obligations hereunder, the
Master Servicer shall act in a manner consistent with Accepted Master Servicing
Practices. Furthermore, the Master Servicer shall oversee and consult with each
Servicer as necessary from time-to-time to carry out the Master Servicer's
obligations hereunder, shall receive, review and evaluate all reports,
information and other data provided to the Master Servicer by each Servicer and
shall cause each Servicer to perform and observe the covenants, obligations and
conditions to be performed or observed by such Servicer under the applicable
Servicing Agreement. The Master Servicer shall independently and separately
monitor each Servicer's servicing activities with respect to each related Loan,
reconcile the results of such monitoring with such information provided in the
previous sentence on a monthly basis and coordinate corrective adjustments to
the Servicers' and Master Servicer's records, and based on such reconciled and
corrected information, prepare the statements specified in Section 4.6 and any
other information and statements required to be provided by the Master Servicer
hereunder. The Master Servicer shall reconcile the results of its Loan
monitoring with the actual remittances of the Servicers to the Distribution
Account pursuant to the applicable Servicing Agreements.

                  Notwithstanding anything in this Agreement or any Servicing
Agreement to the contrary, the Master Servicer shall not have any duty or
obligation to enforce any Credit Risk Management Agreement that a Servicer is a
party to (a "Servicer Credit Risk Management Agreement") or to supervise,
monitor or oversee the activities of the Credit Risk Manager under any such
Servicer Credit Risk Management Agreement with respect to any action taken or
not taken by the applicable Servicer pursuant to a recommendation of the Credit
Risk Manager.

                  The Trustee shall furnish the Servicers and the Master
Servicer with any limited powers of attorney and other documents in form as
provided to it necessary or appropriate to enable the Servicers and the Master
Servicer to service or master service and administer the related Loans and REO
Property. The Trustee shall have no responsibility for any action of the Master
Servicer or any Servicer pursuant to any such limited power of attorney and
shall be indemnified by the Master Servicer or such Servicer for any cost,
liability or expense arising from the misuse thereof by the Master Servicer or
such Servicer.

                  The Trustee, the Custodian and the Securities Administrator
shall provide access to the records and documentation in possession of the
Trustee, the Custodian or the Securities Administrator regarding the related
Loans and REO Property and the servicing thereof to the Certificateholders, the
FDIC, and the supervisory agents and examiners of the FDIC, such access being
afforded only upon reasonable prior written request and during normal business
hours at the office of the Trustee, the Custodian or the Securities
Administrator; provided, however, that, unless otherwise required by law, none
of the Trustee, the Custodian or the Securities Administrator shall be required
to provide access to such records and documentation if the provision thereof
would violate the legal right to privacy of any Mortgagor. The Trustee, the

                                     - 48 -
<PAGE>

Custodian and the Securities Administrator shall allow representatives of the
above entities to photocopy any of the records and documentation and shall
provide equipment for that purpose at a charge that covers the Trustee's, the
Custodian's or the Securities Administrator's actual costs.

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

                  Section 3.2 REMIC-RELATED COVENANTS. For as long as each REMIC
shall exist, the Trustee and the Securities Administrator shall treat each REMIC
as a REMIC, and the Trustee and the Securities Administrator shall comply with
any directions of the Seller, the related Servicer or the Master Servicer to
assure such continuing treatment. In particular, the Trustee shall not (a) sell
or permit the sale of all or any portion of the Loans or of any investment of
deposits in an Account unless such sale is as a result of a repurchase of the
Loans pursuant to this Agreement or the Trustee has received an Opinion of
Counsel stating that such sale will not result in an Adverse REMIC Event as
defined in Section 10.1(f) hereof prepared at the expense of the Trust Fund; and
(b) other than with respect to a substitution pursuant to the Mortgage Loan
Purchase Agreement, the Assignment Agreements or Section 2.3 of this Agreement,
as applicable, accept any contribution to any REMIC after the Startup Day
without receipt of an Opinion of Counsel stating that such contribution will not
result in an Adverse REMIC Event as defined in Section 10.1(f) hereof.

                  Section 3.3 MONITORING OF SERVICERS. (a) The Master Servicer
shall be responsible for monitoring the compliance by each Servicer with its
duties under the related Servicing Agreement. In the review of each Servicer's
activities, the Master Servicer may rely upon an officer's certificate of any
Servicer with regard to such Servicer's compliance with the terms of its
Servicing Agreement. In the event that the Master Servicer, in its judgment,
determines that a Servicer should be terminated in accordance with its Servicing
Agreement, or that a notice should be sent pursuant to such Servicing Agreement
with respect to the occurrence of an event that, unless cured, would constitute
grounds for such termination, the Master Servicer shall notify the Seller and
the Trustee thereof and the Master Servicer shall issue such notice or take such
other action as it deems appropriate.

                  (b) The Master Servicer, for the benefit of the Trustee and
the Certificateholders, shall enforce the obligations of each Servicer under the
related Servicing Agreement, and shall, in the event that a Servicer fails to
perform its obligations in accordance with the related Servicing Agreement,
subject to the preceding paragraph, terminate the rights and obligations of such
Servicer thereunder and act as servicer of the related Loans or to cause the
Trustee to enter in to a new Servicing Agreement with a successor Servicer
selected by the Master Servicer; provided, however, it is understood and
acknowledged by the parties hereto that there will be a period of transition
(not to exceed 90 days) before the actual servicing functions can be fully
transferred to such successor Servicer. Such enforcement, including, without
limitation, the

                                     - 49 -
<PAGE>

legal prosecution of claims, termination of Servicing Agreements and the pursuit
of other appropriate remedies, shall be in such form and carried out to such an
extent and at such time as the Master Servicer, in its good faith business
judgment, would require were it the owner of the related Loans. The Master
Servicer shall pay the costs of such enforcement at its own expense, provided
that the Master Servicer shall not be required to prosecute or defend any legal
action except to the extent that the Master Servicer shall have received
indemnity reasonably acceptable to it for its costs and expenses in pursuing
such action.

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

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

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

                  Section 3.4 FIDELITY BOND. The Master Servicer, at its
expense, shall maintain in effect a blanket fidelity bond and an errors and
omissions insurance policy that would meet the requirements of Fannie Mae or
Freddie Mac, affording coverage with respect to all directors, officers,
employees and other Persons acting on such Master Servicer's behalf, and
covering errors and omissions in the performance of the Master Servicer's
obligations hereunder. The errors and omissions insurance policy and the
fidelity bond shall be in such form and amount generally acceptable for entities
serving as master servicers or trustees. Any such errors and omissions policy
and fidelity bond may not be cancelable without thirty (30) days' prior written
notice to the Trustee.

                  Section 3.5 POWER TO ACT; PROCEDURES. The Master Servicer
shall master service the Loans and shall have full power and authority, subject
to the REMIC Provisions and the provisions of Article X hereof, to do any and
all things that it may deem necessary or desirable in connection with the master
servicing and administration of the Loans, including but not limited to the
power and authority (i) to execute and deliver, on behalf of the
Certificateholders and the Trustee, customary consents or waivers and other
instruments and documents, (ii) to consent to transfers of any Mortgaged
Property and assumptions of the Mortgage Notes and related Mortgages, (iii) to
collect any Insurance Proceeds and Liquidation Proceeds, and (iv) to effectuate
foreclosure or other conversion of the ownership of the Mortgaged Property
securing any Loan, in each case, in accordance with the provisions of this

                                     - 50 -
<PAGE>

Agreement and the related Servicing Agreement, as applicable; provided, however,
that the Master Servicer shall not (and, consistent with its responsibilities
under Section 3.3, shall not permit any Servicer to) knowingly or intentionally
take any action, or fail to take (or fail to cause to be taken) any action
reasonably within its control and the scope of duties more specifically set
forth herein, that, under the REMIC Provisions, if taken or not taken, as the
case may be, would cause any REMIC to fail to qualify as a REMIC or 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)
unless the Master Servicer has received an Opinion of Counsel (but not at the
expense of the Master Servicer) to the effect that the contemplated action will
not cause any REMIC to fail to qualify as a REMIC or result in the imposition of
a tax upon any REMIC. The Trustee shall furnish the Master Servicer, upon
written request from a Servicing Officer, with any powers of attorney empowering
the Master Servicer or any Servicer to execute and deliver instruments of
satisfaction or cancellation, or of partial or full release or discharge, and to
foreclose upon or otherwise liquidate Mortgaged Property, and to appeal,
prosecute or defend in any court action relating to the Loans or the Mortgaged
Property, in accordance with the applicable Servicing Agreement and this
Agreement, and the Trustee shall execute and deliver such other documents, as
the Master Servicer or applicable Servicer may request, to enable the Master
Servicer to master service and administer the Loans and carry out its duties
hereunder, in each case in accordance with Accepted Master Servicing Practices
(and the Trustee shall have no liability for the misuse of any such powers of
attorney by the Master Servicer or any Servicer and shall be indemnified by the
Master Servicer or such Servicer for any costs, liabilities or expenses incurred
by the Trustee in connection with such misuse). If the Master Servicer or the
Trustee has been advised that it is likely that the laws of the state in which
action is to be taken prohibit such action if taken in the name of the Trustee
or that the Trustee would be adversely affected under the "doing business" or
tax laws of such state if such action is taken in its name, the Master Servicer
shall join with the Trustee in the appointment of a co-trustee pursuant to
Section 8.10 hereof. In the performance of its duties hereunder, the Master
Servicer shall be an independent contractor and shall not, except in those
instances where it is taking action authorized pursuant to this Agreement to be
taken by it in the name of the Trustee, be deemed to be the agent of the
Trustee.

                  Section 3.6 DUE-ON-SALE CLAUSES; ASSUMPTION AGREEMENTS. To the
extent provided in the applicable Servicing Agreement and to the extent Loans
contain enforceable due-on-sale clauses, the Master Servicer shall cause the
Servicers to enforce such clauses in accordance with the applicable Servicing
Agreement. If applicable law prohibits the enforcement of a due-on-sale clause
or such clause is otherwise not enforced in accordance with the applicable
Servicing Agreement, and, as a consequence, a Loan is assumed, the original
Mortgagor may be released from liability in accordance with the applicable
Servicing Agreement.

                  Section 3.7 RELEASE OF MORTGAGE FILES.

                  (a) Upon becoming aware of Payoff with respect to any Loan, or
the receipt by any Servicer of a notification that payment in full has been
escrowed in a manner customary for such purposes for payment to
Certificateholders on the next Distribution Date, the applicable Servicer will
(or if the Servicer does not, the Master Servicer may), if required under

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<PAGE>

the applicable Servicing Agreement, promptly furnish to the Custodian, on behalf
of the Trustee, two copies of a request for release substantially in the form
attached to the Custodial Agreement, and signed by a Servicing Officer or in a
mutually agreeable electronic format which will, in lieu of a signature on its
face, originate from a Servicing Officer (which certification shall include a
statement to the effect that all amounts received in connection with such
payment that are required to be deposited in the Protected Account maintained by
the applicable Servicer pursuant to its Servicing Agreement have been or will be
so deposited) and shall request that the Custodian, on behalf of the Trustee,
deliver to the applicable Servicer the related Mortgage File. Upon receipt of
such certification and request, the Custodian, on behalf of the Trustee, shall
promptly release the related Mortgage File to the applicable Servicer and the
Trustee and Custodian shall have no further responsibility with regard to such
Mortgage File. Upon any such Payoff, each Servicer is authorized to give, as
agent for the Trustee, as the mortgagee under the Mortgage that secured the
Loan, an instrument of satisfaction (or assignment of mortgage without recourse)
regarding the Mortgaged Property subject to the Mortgage, which instrument of
satisfaction or assignment, as the case may be, shall be delivered to the Person
or Persons entitled thereto against receipt therefor of such payment, it being
understood and agreed that no expenses incurred in connection with such
instrument of satisfaction or assignment, as the case may be, shall be
chargeable to the Distribution Account.

                  (b) From time to time and as appropriate for the servicing or
foreclosure of any Loan and in accordance with the applicable Servicing
Agreement, the Trustee shall execute such documents as shall be prepared and
furnished to the Trustee by a Servicer or the Master Servicer (in form
reasonably acceptable to the Trustee) and as are necessary to the prosecution of
any such proceedings. The Custodian, on behalf of the Trustee, shall, upon the
request of a Servicer or the Master Servicer, and delivery to the Custodian, on
behalf of the Trustee, of two copies of a request for release signed by a
Servicing Officer substantially in the form attached to the Custodial Agreement
(or in a mutually agreeable electronic format which will, in lieu of a signature
on its face, originate from a Servicing Officer), release the related Mortgage
File held in its possession or control to the Servicer or the Master Servicer,
as applicable. Such request for release shall obligate the Servicer or the
Master Servicer to return the Mortgage File to the Custodian on behalf of the
Trustee, when the need therefor by the Servicer or the Master Servicer no longer
exists unless the Loan shall be liquidated, in which case, upon receipt of a
certificate of a Servicing Officer similar to that hereinabove specified, the
Mortgage File shall be released by the Custodian, on behalf of the Trustee, to
the Servicer or the Master Servicer.

                  Section 3.8 DOCUMENTS, RECORDS AND FUNDS IN POSSESSION OF
MASTER SERVICER TO BE HELD FOR TRUSTEE.

                  (a) The Master Servicer shall transmit and each Servicer (to
the extent required by the related Servicing Agreement) shall transmit to the
Trustee or Custodian such documents and instruments coming into the possession
of the Master Servicer or such Servicer from time to time as are required by the
terms hereof, or in the case of the Servicers, the applicable Servicing
Agreement, to be delivered to the Trustee or Custodian. Any funds received by
the Master Servicer or by a Servicer in respect of any Loan or which otherwise
are collected by the Master Servicer or by a Servicer as Liquidation Proceeds,
Insurance Proceeds or Subsequent Recoveries in respect of any Loan shall be held
for the benefit of the Trustee and the related

                                     - 52 -
<PAGE>

Certificateholders subject to the Master Servicer's right to retain or withdraw
from the Distribution Account the Master Servicing Compensation and other
amounts provided in this Agreement, and to the right of each Servicer to retain
its Servicing Fee and other amounts as provided in the applicable Servicing
Agreement. The Master Servicer shall, and (to the extent provided in the
applicable Servicing Agreement) shall cause each Servicer to, provide access to
information and documentation regarding the Loans to the Trustee, its agents and
accountants at any time upon reasonable request and during normal business
hours, and to Certificateholders that are savings and loan associations, banks
or insurance companies, the OTS, the FDIC and the supervisory agents and
examiners of such Office and Corporation or examiners of any other federal or
state banking or insurance regulatory authority if so required by applicable
regulations of the OTS or other regulatory authority, such access to be afforded
without charge but only upon reasonable request in writing and during normal
business hours at the offices of the Master Servicer designated by it. In
fulfilling such a request the Master Servicer shall not be responsible for
determining the sufficiency of such information.

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

                  Section 3.9 STANDARD HAZARD INSURANCE AND FLOOD INSURANCE
POLICIES.

                  (a) For each Loan, the Master Servicer shall enforce any
obligation of the Servicers under the related Servicing Agreements to maintain
or cause to be maintained standard fire and casualty insurance and, where
applicable, flood insurance, all in accordance with the provisions of the
related Servicing Agreements. It is understood and agreed that such insurance
shall be with insurers meeting the eligibility requirements set forth in the
applicable Servicing Agreement and that no earthquake or other additional
insurance is to be required of any Mortgagor or to be maintained on property
acquired in respect of a defaulted loan, other than pursuant to such applicable
laws and regulations as shall at any time be in force and as shall require such
additional insurance.

                  (b) Pursuant to Section 3.23, any amounts collected by the
Master Servicer, or by any Servicer, under any insurance policies (other than
amounts to be applied to the restoration or repair of the property subject to
the related Mortgage or released to the Mortgagor in accordance with the
applicable Servicing Agreement) shall be deposited into the related Distribution
Account, subject to withdrawal pursuant to Section 3.24. Any cost incurred by
the Master Servicer or any Servicer in maintaining any such insurance if the
Mortgagor defaults in its obligation to do so shall be added to the amount owing
under the Loan where the terms of the Loan so permit; provided, however, that
the addition of any such cost shall not be taken into account for purposes of
calculating the distributions to be made to Certificateholders and shall be
recoverable by the Master Servicer or such Servicer pursuant to Section 3.24.

                                     - 53 -
<PAGE>

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

                  Section 3.11 MAINTENANCE OF THE PRIMARY MORTGAGE INSURANCE
POLICIES.

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

                  (b) The Master Servicer agrees to cause each Servicer (to the
extent required under the related Servicing Agreement) to present, on behalf of
the Trustee and the related Certificateholders, claims to the insurer under any
primary mortgage insurance policies and, in this regard, to take such reasonable
action as shall be necessary to permit recovery under any primary mortgage
insurance policies respecting defaulted Loans. Pursuant to Sections 3.22 and
3.23, any amounts collected by the Master Servicer or any Servicer under any
primary mortgage insurance policies shall be deposited by the related Servicer
in its Protected Account or by the Master Servicer in the Distribution Account,
subject to withdrawal pursuant to Section 3.22 or 3.24, as applicable.

                  Section 3.12 TRUSTEE TO RETAIN POSSESSION OF CERTAIN INSURANCE
POLICIES AND DOCUMENTS.

                  The Trustee or the applicable Custodian, shall retain
possession and custody of the originals (to the extent available) of any primary
mortgage insurance policies, or certificate of insurance if applicable, and any
certificates of renewal as to the foregoing as may be issued from time to time
as contemplated by this Agreement. Until all amounts distributable in respect of
the Certificates have been distributed in full and the Master Servicer otherwise
has fulfilled its obligations under this Agreement, the Trustee or the Custodian
shall also retain possession and

                                     - 54 -
<PAGE>

custody of each Mortgage File in accordance with and subject to the terms and
conditions of this Agreement and the Custodial Agreement. The Master Servicer
shall promptly deliver or cause to be delivered to the Trustee or the Custodian,
upon the execution or receipt thereof the originals of any primary mortgage
insurance policies, any certificates of renewal, and such other documents or
instruments that constitute Loan Documents that come into the possession of the
Master Servicer from time to time.

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

                  Section 3.14 COMPENSATION FOR THE MASTER SERVICER.

                  (a) All income and gain realized from any investment of funds
in the Distribution Account shall be for the benefit of the Master Servicer as
compensation. Servicing compensation in the form of assumption fees, if any,
late payment charges, as collected, if any, or otherwise (but not including any
Prepayment Charges) shall be retained by the applicable Servicer and shall not
be deposited in the Protected Account. The Master Servicer shall be required to
pay all expenses incurred by it in connection with its activities hereunder and
shall not be entitled to reimbursement therefor except as provided in this
Agreement.

                  (b) The amount of the aggregate compensation payable as set
forth in Section 3.14(a) (the "Master Servicing Compensation") to the Master
Servicer in respect of any Distribution Date shall be reduced in accordance with
Section 3.20.

                  Section 3.15 REO PROPERTY.

                  (a) In the event the Trust Fund acquires ownership of any REO
Property in respect of any related Loan, the deed or certificate of sale shall
be issued to the Trustee, or to its nominee, on behalf of the related
Certificateholders. The Master Servicer shall, to the extent provided in the
applicable Servicing Agreement, cause the applicable Servicer to sell any REO
Property as expeditiously as possible and in accordance with the provisions of
this Agreement and the related Servicing Agreement, as applicable. Further, the
Master Servicer shall, to the extent provided in the related Servicing
Agreement, cause the applicable Servicer to sell any REO Property prior to three
years after the end of the calendar year of its acquisition by REMIC I, unless
(i) the Trustee and the Securities Administrator shall have been supplied with
an Opinion of Counsel to the effect that the holding by the Trust Fund of such
REO Property subsequent to such three-year period will not result in the
imposition of taxes on "prohibited transactions" of any REMIC hereunder as
defined in Section 860F of the Code or cause any REMIC hereunder to fail to
qualify as a REMIC at any time that any Certificates are outstanding, in which
case the Trust Fund may continue to hold such Mortgaged Property (subject to any
conditions contained in such Opinion of Counsel) or (ii) the applicable Servicer
shall have applied for, prior to the expiration of such three-year period, an
extension of such three-year period in the manner contemplated by Section
856(e)(3) of the Code, in which case the three-year period shall be extended by
the

                                     - 55 -
<PAGE>

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

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

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

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

                  Section 3.16 ANNUAL OFFICER'S CERTIFICATE AS TO COMPLIANCE.

                  (a) The Master Servicer shall deliver to the Trustee and the
Rating Agencies on or before March 15 of each year, commencing on March 15,
2006, an Officer's Certificate signed by a Servicing Officer, certifying that
with respect to the period ending December 31 of the prior year: (i) such
Servicing Officer has reviewed the activities of such Master Servicer during the
preceding calendar year or portion thereof and its performance under this
Agreement, (ii) to the best of such Servicing Officer's knowledge, based on such
review, such Master Servicer has performed and fulfilled its duties,
responsibilities and obligations under this Agreement in all material respects
throughout such year, or, if there has been a default in the fulfillment of any
such duties, responsibilities or obligations, specifying each such default known
to such Servicing Officer and the nature and status thereof, (iii) nothing has
come to the attention of such Servicing Officer to lead such Servicing Officer
to believe that any Servicer has failed to perform any of its duties,
responsibilities and obligations under its Servicing Agreement in all material
respects throughout such year, or, if there has been a material default in the
performance or fulfillment of any such duties, responsibilities or obligations,
specifying each such default known to such Servicing Officer and the nature and
status thereof.

                  (b) Copies of such statements shall be provided to any related
Certificateholder upon request, by the Master Servicer or by the Trustee at the
Master Servicer's expense if the Master Servicer failed to provide such copies
(unless (i) the Master Servicer shall

                                     - 56 -
<PAGE>

have failed to provide the Trustee with such statement or (ii) the Trustee shall
be unaware of the Master Servicer's failure to provide such statement).

                  Section 3.17 ANNUAL INDEPENDENT ACCOUNTANT'S SERVICING REPORT.
If the Master Servicer has, during the course of any fiscal year, directly
serviced any of the Loans, then the Master Servicer at its expense shall cause a
nationally recognized firm of independent certified public accountants to
furnish a statement to the Trustee, the Rating Agencies and the Seller on or
before March 15 of each year, commencing on March 15, 2006 to the effect that,
with respect to the most recently ended fiscal year, such firm has examined
certain records and documents relating to the Master Servicer's performance of
its servicing obligations under this Agreement and pooling and servicing and
trust agreements in material respects similar to this Agreement and to each
other and that, on the basis of such examination conducted substantially in
compliance with the audit program for mortgages serviced for Freddie Mac or the
Uniform Single Attestation Program for Mortgage Bankers, such firm is of the
opinion that the Master Servicer's activities have been conducted in compliance
with this Agreement, or that such examination has disclosed no material items of
noncompliance except for (i) such exceptions as such firm believes to be
immaterial, (ii) such other exceptions as are set forth in such statement and
(iii) such exceptions that the Uniform Single Attestation Program for Mortgage
Bankers or the Audit Program for Mortgages Serviced by Freddie Mac requires it
to report. Copies of such statements shall be provided to any Certificateholder
upon request by the Master Servicer, or by the Trustee at the expense of the
Master Servicer if the Master Servicer shall fail to provide such copies (unless
(i) the Master Servicer shall have failed to provide the Trustee with such
statement or (ii) the Trustee shall be unaware of the Master Servicer's failure
to provide such statement). If such report discloses exceptions that are
material, the Master Servicer shall advise the Trustee whether such exceptions
have been or are susceptible of cure, and shall take prompt action to do so.

                  Section 3.18 REPORTS FILED WITH SECURITIES AND EXCHANGE
COMMISSION.

                  (a) Within 15 days after each Distribution Date, the Master
Servicer shall, in accordance with industry standards, file with the Commission
via the Electronic Data Gathering and Retrieval System ("EDGAR"), a Form 8-K
with a copy of the statement to be furnished by the Securities Administrator to
the Certificateholders for such Distribution Date as an exhibit thereto. Prior
to January 30, 2006, the Master Servicer shall, in accordance with industry
standards, file a Form 15 Suspension Notice with respect to the Trust Fund, if
applicable. Prior to March 30, 2006 and annually thereafter (if required), the
Master Servicer shall file a Form 10-K, in substance conforming to industry
standards, with respect to the Trust Fund. Such Form 10-K shall include, to the
extent available, as exhibits (i) each applicable Servicer's annual statement of
compliance described under the related Servicing Agreement, (ii) each applicable
Servicer's accountant's report described under the related Servicing Agreement,
(iii) the Master Servicer's accountant's report described in Section 3.17, if
applicable, in each case to the extent timely delivered, if applicable, to the
Master Servicer, and (iv) a written certification signed by an officer of the
Master Servicer that complies with the Sarbanes-Oxley Act of 2002 as in effect
on the date of this Agreement and the February 3, 2003, Statement by the Staff
of the Division of Corporation Finance of the Commission Regarding Compliance by
Asset-Backed Issuers with Exchange Act Rules 13a-14 and 15d-14 as in effect as
of the date of this Agreement. The Depositor hereby grants to the Master
Servicer a limited power of attorney to execute and file each Form 8-K and

                                     - 57 -
<PAGE>

Form 10-K on behalf of the Depositor. Such power of attorney shall continue
until either the earlier of (i) receipt by the Master Servicer from the
Depositor of written termination of such power of attorney and (ii) the
termination of the Trust Fund. The Depositor and the Trustee each agree to
promptly furnish to the Master Servicer, from time to time upon request, such
further information, reports and financial statements within its control related
to this Agreement and the Loans as the Master Servicer reasonably deems
appropriate to prepare and file all necessary reports with the Commission. The
Master Servicer shall cooperate with the Depositor in connection with any
additional filings with respect to the Trust Fund as the Depositor deems
necessary under the Exchange Act. Copies of all reports filed by the Master
Servicer under the Exchange Act shall be sent to the Depositor.

                  (b) The Master 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 Master Servicer's
obligations under this Section 3.18 or the Master Servicer's negligence, bad
faith or willful misconduct in connection therewith. Fees and expenses incurred
by the Master Servicer in connection with this Section 3.18 shall not be
reimbursable from the Trust Fund.

                  Section 3.19 UCC. The Depositor shall file any financing
statements or amendments thereto required by any change in the Uniform
Commercial Code. The Depositor agrees to file continuation statements for any
such Uniform Commercial Code financing statements which the Seller or the
Depositor filed in connection with the Trust Fund.

                  Section 3.20 OBLIGATION OF THE MASTER SERVICER IN RESPECT OF
COMPENSATING INTEREST. The Master Servicer shall deposit in the Distribution
Account not later than each Distribution Account Deposit Date an amount equal to
the lesser of (i) the aggregate amounts required to be paid by the Servicers
under the Servicing Agreements with respect to Compensating Interest on the
related Loans for the related Distribution Date, and not so paid by the related
Servicers and (ii) the Master Servicing Compensation for such Distribution Date
without reimbursement therefor.

                  Section 3.21 RESERVED.

                  Section 3.22 PROTECTED ACCOUNTS.

                  (a) The Master Servicer shall enforce the obligation of each
Servicer to establish and maintain a Protected Account in accordance with the
applicable Servicing Agreement, with records to be kept with respect thereto on
a Loan by Loan basis, into which accounts shall be deposited within 48 hours (or
as of such other time specified in the related Servicing Agreement) of receipt
all collections of principal and interest on any Loan and with respect to any
REO Property received by a Servicer, including Principal Prepayments, Insurance
Proceeds, Liquidation Proceeds, Subsequent Recoveries and advances made from the
Servicer's own funds (less servicing compensation as permitted by the applicable
Servicing Agreement in the case of any Servicer) and all other amounts to be
deposited in the Protected Account. Each Servicer is hereby authorized to make
withdrawals from and deposits to the related Protected Account for purposes
required or permitted by the related Servicing Agreement. To the extent

                                     - 58 -
<PAGE>

provided in the related Servicing Agreement, the Protected Account shall be held
in a depository institution and segregated on the books of such institution in
the name of the Trustee for the benefit of the Certificateholders.

                  (b) To the extent provided in the related Servicing Agreement,
amounts on deposit in a Protected Account may be invested in Eligible
Investments in the name of the Trustee for the benefit of Certificateholders
and, except as provided in the preceding paragraph, not commingled with any
other funds, such Eligible Investments to mature, or to be subject to redemption
or withdrawal, no later than the date on which such funds are required to be
withdrawn for deposit in the Distribution Account, and shall be held until
required for such deposit. The income earned from Eligible Investments made
pursuant to this Section 3.22 shall be paid to the related Servicer under the
applicable Servicing Agreement, and amount required to be distributed to the
Certificateholders resulting from the loss of monies on such investments shall
be borne by and be the risk of the related Servicer. The related Servicer (to
the extent provided in the Servicing Agreement) shall deposit the amount of any
such loss in the Protected Account within two Business Days of receipt of
notification of such loss but not later than the second Business Day prior to
the Distribution Date on which the moneys so invested are required to be
remitted to the Master Servicer or the Securities Administrator..

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

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

                    (ii) Principal Prepayments, Liquidation Proceeds, Insurance
               Proceeds and Subsequent Recoveries received by the Servicers with
               respect to such Loans in the related Prepayment Period,
               Compensating Interest and the amount of any related Prepayment
               Charges; and

                    (iii) Any amount to be used as an Advance.

                  (d) Withdrawals may be made from an Account only to make
remittances as provided in Section 3.22(c), 3.23 and 3.24 or as otherwise
provided in the Servicing Agreements; to reimburse the Master Servicer or a
Servicer for Advances which have been recovered by subsequent collection from
the related Mortgagor; to remove amounts deposited in error; to remove fees,
charges or other such amounts deposited on a temporary basis; or to clear and
terminate the account at the termination of this Agreement in accordance with
Section 9.1. As provided in Sections 3.22(c) and 3.23(b) or as otherwise
provided in the Servicing Agreements certain amounts otherwise due to the
Servicers may be retained by them and need not be deposited in the Distribution
Account.

                                     - 59 -
<PAGE>

                  Section 3.23 DISTRIBUTION ACCOUNT.

                  (a) The Securities Administrator shall establish and maintain,
a Distribution Account with respect to the Loans as a segregated trust account
or accounts. The Master Servicer shall deposit in the Distribution Account as
identified by the Master Servicer and as received by the Master Servicer, the
following amounts with respect to the related Loans for the benefit of the
related Certificateholders:

                    (i) Any amounts withdrawn from a Protected Account;

                    (ii) Any Advance and any amounts in respect of Prepayment
               Interest Shortfalls or Curtailment Shortfalls;

                    (iii) Any Insurance Proceeds, Liquidation Proceeds or
               Subsequent Recoveries received by or on behalf of the Master
               Servicer;

                    (iv) The Purchase Price with respect to any Loans purchased
               by the Seller pursuant to Section 2.3 and all proceeds of any
               Loans or property acquired with respect thereto purchased by the
               Master Servicer pursuant to Section 9.1;

                    (v) Any amounts required to be deposited by the Master
               Servicer or any Servicer with respect to losses on investments of
               deposits in an Account; and

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

                  (b) All amounts deposited to the Distribution Account shall be
held by the Securities Administrator in trust for the benefit of the
Certificateholders in accordance with the terms and provisions of this
Agreement. The requirements for crediting the Distribution Account shall be
exclusive, it being understood and agreed that, without limiting the generality
of the foregoing, payments in the nature of late payment charges or assumption,
tax service, statement account or payoff, substitution, satisfaction, release
and other like fees and charges, need not be credited by the Master Servicer or
the related Servicer to the Distribution Account. In the event that the Master
Servicer shall deposit or cause to be deposited to the Distribution Account any
amount not required to be credited thereto, the Securities Administrator, upon
receipt of a written request therefor signed by a Servicing Officer of the
Master Servicer, shall promptly transfer such amount to the Master Servicer, any
provision herein to the contrary notwithstanding.

                  (c) The Distribution Account shall constitute a trust account
of the Trust Fund segregated on the books of the Securities Administrator and
held by the Securities Administrator in trust in its Corporate Trust Office, and
the Distribution Account and the funds deposited therein shall not be subject
to, and shall be protected from, all claims, liens, and encumbrances of any
creditors or depositors of the Securities Administrator (whether made directly,
or indirectly through a liquidator or receiver of the Securities Administrator).
The amount at any time credited to the Distribution Account shall be invested in
the name of the

                                     - 60 -
<PAGE>

Master Servicer, in such Eligible Investments selected by the Master Servicer or
deposited in demand deposits with such depository institutions as selected by
the Master Servicer, provided that time deposits of such depository institutions
would be an Eligible Investment. All Eligible Investments shall mature or be
subject to redemption or withdrawal on or before, and shall be held until, the
Distribution Date following the date of the investment of such funds (the
"Investment Withdrawal Distribution Date") if the obligor for such Eligible
Investment is the Securities Administrator or, if such obligor is any other
Person, the Business Day preceding such Investment Withdrawal Distribution Date.
All investment earnings on amounts on deposit in the Distribution Account from
time to time shall be for the account of the Master Servicer. The Master
Servicer shall be permitted to receive distribution of any and all investment
earnings from the Distribution Account on each Distribution Date. If there is
any loss on an Eligible Investment or demand deposit, the Master Servicer shall
deposit such amount in the Distribution Account. With respect to the
Distribution Account and the funds deposited therein, the Securities
Administrator shall take such action as may be necessary to ensure that the
related Certificateholders shall be entitled to the priorities afforded to such
a trust account (in addition to a claim against the estate of the Securities
Administrator) as provided by 12 U.S.C. ss. 92a(e), and applicable regulations
pursuant thereto, if applicable, or any applicable comparable state statute
applicable to state chartered banking corporations.

                  Section 3.24 PERMITTED WITHDRAWALS AND TRANSFERS FROM THE
DISTRIBUTION ACCOUNT.

                  (a) The Securities Administrator shall, from time to time on
demand of the Master Servicer make or cause to be made such withdrawals or
transfers from the Distribution Account as the Master Servicer has designated
for such transfer or withdrawal pursuant to the Servicing Agreements for the
following purposes, not in any order of priority:

                    (i) to reimburse the Master Servicer or any Servicer for any
               Advance of its own funds, the right of the Master Servicer or a
               Servicer to reimbursement pursuant to this subclause (i) being
               limited to amounts received on a particular Loan (including, for
               this purpose, the Purchase Price therefor, Insurance Proceeds and
               Liquidation Proceeds) which represent late payments or recoveries
               of the principal of or interest on such Loan respecting which
               such Advance was made;

                    (ii) to reimburse the Master Servicer or any Servicer from
               Insurance Proceeds or Liquidation Proceeds relating to a
               particular Loan for amounts expended by the Master Servicer or
               such Servicer in good faith in connection with the restoration of
               the related Mortgaged Property which was damaged by an Uninsured
               Cause or in connection with the liquidation of such Loan;

                    (iii) to reimburse the Master Servicer or any Servicer from
               Insurance Proceeds relating to a particular Loan for insured
               expenses incurred with respect to such Loan and to reimburse the
               Master Servicer or such Servicer from Liquidation Proceeds from a
               particular Loan for Liquidation Expenses incurred with respect to
               such Loan;

                                     - 61 -
<PAGE>

                    (iv) to pay the Master Servicer or any Servicer, as
               appropriate, from Liquidation Proceeds or Insurance Proceeds
               received in connection with the liquidation of any Loan, the
               amount which it or such Servicer would have been entitled to
               receive under subclause (vii) of this Subsection (a) as servicing
               compensation on account of each defaulted scheduled payment on
               such Loan if paid in a timely manner by the related Mortgagor;

                    (v) to pay the Master Servicer or any Servicer from the
               Purchase Price for any Loan, the amount which it or such Servicer
               would have been entitled to receive under subclause (vii) of this
               Subsection (a) as servicing compensation;

                    (vi) to reimburse the Master Servicer or any Servicer for
               any Nonrecoverable Advance, after a Realized Loss has been
               allocated with respect to the related Loan if the Advance or
               Servicing Advance has not been reimbursed pursuant to clause (i);

                    (vii) to pay the Servicing Fee to the Servicers (to the
               extent such Servicing Fee was not retained by the Servicer
               pursuant to the related Servicing Agreement), the Credit Risk
               Management Fee to the Credit Risk Manager for such Distribution
               Date and the amount of any income or gain realized from
               investments of funds on deposit in the Distribution Account
               pursuant to Section 3.14 hereof and to reimburse the Master
               Servicer for expenses, costs and liabilities incurred by and
               reimbursable to it pursuant to Sections 3.3, 6.3; 8.5 and 10.1.

                    (viii) to reimburse or pay any Servicer any such amounts as
               are due thereto under the applicable Servicing Agreement and have
               not been retained by or paid to the Servicer, to the extent
               provided in the related Servicing Agreement;

                    (ix) to reimburse the Trustee, the Custodian and the
               Securities Administrator for expenses, costs and liabilities, if
               any, incurred by or reimbursable to such parties pursuant to this
               Agreement;

                    (x) to remove amounts deposited in error; and

                    (xi) to clear and terminate the Distribution Account
               pursuant to Section 9.1.

                  (b) The Master Servicer shall keep and maintain separate
accounting, on a Loan by Loan basis, for the purpose of accounting for any
reimbursement from the Distribution Account pursuant to subclauses (i) through
(vi), inclusive, or with respect to any such amounts which would have been
covered by such subclauses had the amounts not been retained by the Master
Servicer without being deposited in the Distribution Account under Section
3.23(b).

                  (c) On each Distribution Date, the Securities Administrator
shall distribute the Group I Available Distribution Amount and Group II
Available Distribution

                                     - 62 -
<PAGE>

Amount to the Holders of the Group I Senior, Group II Senior and Subordinate
Certificates in accordance with Section 4.1.

                  Section 3.25 RESERVE FUND.

                  (a) No later than the Closing Date, the Securities
Administrator shall establish and maintain a separate, segregated trust account
titled, "Reserve Fund, Wells Fargo Bank, National Association, in trust for the
registered holders of Deutsche Alt-A Securities, Inc. Mortgage Loan Trust,
Series 2005-1, Mortgage Pass-Through Certificates." On the Closing Date, the
Depositor will deposit, or cause to be deposited, into the Reserve Fund $1,000.
In addition, the amount deposited in the Reserve Fund shall be increased by any
payments received by the Securities Administrator under the Cap Contract and
deposited into the Reserve Fund for the benefit of the Class I-A-1, Class I-A-3
and Class I-A-4 Certificates.

                  (b) On each Distribution Date as to which there is a Net WAC
Rate Carryover Amount payable to the Class I-A-1, Class I-A-3 and Class I-A-4
Certificates, the Securities Administrator will deposit into the Reserve Fund
the amounts described in Section 4.1(a)(v) and (b)(iv). On each such
Distribution Date, the Securities Administrator shall hold all such amounts for
the benefit of the Holders of the Class I-A-1, Class I-A-3 and Class I-A-4
Certificates, and will distribute such amounts to the Holders of the Class
I-A-1, Class I-A-3 and Class I-A-4 Certificates as set forth in Section
4.1(a)(v) and (b)(iv). If no Net WAC Rate Carryover Amounts are payable on a
Distribution Date, the Securities Administrator shall deposit, based on the
instructions received by it from the Securities Administrator, into the Reserve
Fund on behalf of the Class I-A-1, Class I-A-3 and Class I-A-4
Certificateholders an amount such that when added to other amounts already on
deposit in the Reserve Fund, the aggregate amount on deposit therein is equal to
$1,000.

                  (c) For federal and state income tax purposes, the Seller will
be deemed to be the owner of the Reserve Fund. Upon the termination of the Trust
Fund, or the payment in full of the Certificates, all amounts remaining on
deposit in the Reserve Fund will be released by the Trust Fund and distributed
to the Seller or its designees. The Reserve Fund will be part of the Trust Fund
but not part of any REMIC and any payments to the Holders of the Class I-A-1,
Class I-A-3 or Class I-A-4 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).

                  (d) The Seller hereby agrees that the Securities Administrator
will deposit into the Reserve Fund the amounts described above on each
Distribution Date. The Seller further agrees that its agreement to such action
by the Securities Administrator is given for good and valuable consideration,
the receipt and sufficiency of which is acknowledged by such acceptance.

                  (e) The Securities Administrator shall direct any depository
institution maintaining the Reserve Fund to invest the funds in such account in
one or more Eligible 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
Securities

                                     - 63 -
<PAGE>

Administrator 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 Securities Administrator or an
Affiliate manages or advises such investment. All income and gain earned upon
such investment shall be deposited into the Reserve Fund. In no event shall the
Securities Administrator be liable for any investments made pursuant to this
clause (e).

                  (f) For federal tax return and information reporting, the
right of the Holders of the Class I-A-1, Class I-A-3 and Class I-A-4
Certificates to receive payments from the Reserve Fund in respect of any Net WAC
Rate Carryover Amount shall be assigned a value of $4,310,000.

                  Section 3.26 PREPAYMENT PENALTY VERIFICATION.

                  On or prior to each Servicer Remittance Date, each Servicer
shall, to the extent provided in the respective Servicing Agreement, provide in
an electronic format acceptable to the Master Servicer the data necessary for
the Master Servicer to perform its verification duties agreed to by the Master
Servicer and the Depositor. The Master Servicer or a third party reasonably
acceptable to the Master Servicer and the Depositor (the "Verification Agent")
will perform such verification duties and will use its best efforts to issue its
findings in a report (the "Verification Report") delivered to the Master
Servicer and the Depositor within ten (10) Business Days following the related
Distribution Date; provided, however, that if the Verification Agent is unable
to issue the Verification Report within ten (10) Business Days following the
Distribution Date, the Verification Agent may issue and deliver to the Master
Servicer and the Depositor the Verification Report upon the completion of its
verification duties. The Master Servicer shall forward the Verification Report
to the respective Servicer and shall notify such Servicer if the Master Servicer
has determined that such Servicer did not deliver the appropriate Prepayment
Charges to the Master Servicer in accordance with the respective Servicing
Agreement. Such written notification from the Master Servicer shall include the
loan number, prepayment penalty code and prepayment penalty amount as calculated
by the Master Servicer or the Verification Agent, as applicable, of each Loan
for which there is a discrepancy. If the respective Servicer agrees with the
verified amounts, such Servicer shall adjust the immediately succeeding
Remittance Report and the amount remitted to the Master Servicer with respect to
prepayments accordingly. If the respective Servicer disagrees with the
determination of the Master Servicer, such Servicer shall, within five (5)
Business Days of its receipt of the Verification Report, notify the Master
Servicer of such disagreement and provide the Master Servicer with detailed
information to support such Servicer's position. The respective Servicer and the
Master Servicer shall cooperate to resolve any discrepancy on or prior to the
immediately succeeding Servicer Remittance Date, and such Servicer will indicate
the effect of such resolution on the related Remittance Report and shall adjust
the amount remitted with respect to prepayments on such Servicer Remittance Date
accordingly.

                  During such time as the respective Servicer and the Master
Servicer are resolving discrepancies with respect to the Prepayment Charges, no
payments in respect of any disputed Prepayment Charges will be remitted to the
Distribution Account and the Master Servicer shall not be obligated to remit
such payments, unless otherwise required pursuant to Section 7.1 hereof. In
connection with such duties, the Master Servicer shall be able to rely solely on
the information provided to it by the respective Servicer in accordance with
this Section. The

                                     - 64 -
<PAGE>

Master Servicer shall not be responsible for verifying the accuracy of any of
the information provided to it by the respective Servicer.

                                     - 65 -
<PAGE>

                                   ARTICLE IV

                    PAYMENTS TO CERTIFICATEHOLDERS; ADVANCES;
                             STATEMENTS AND REPORTS

                  Section 4.1 DISTRIBUTIONS TO CERTIFICATEHOLDERS.

                  On each Distribution Date, the Securities Administrator, to
the extent on deposit therein and based solely upon the Remittance Report for
such Distribution Date, shall withdraw from the Distribution Account the Group I
Available Distribution Amount and Group II Available Distribution Amount for
such Distribution Date and distribute to each related Certificateholder, by wire
transfer in immediately available funds for the account of the Certificateholder
or by any other means of payment acceptable to each Certificateholder of record
on the immediately preceding Record Date (other than as provided in Section 9.1
respecting the final distribution) as specified by each such Certificateholder
and at the address of such Holder appearing in the Certificate Register, from
the amount so withdrawn and to the extent of the Group I Available Distribution
Amount and Group II Available Distribution Amount, as applicable, such
Certificateholder's Percentage Interest of the following amounts and in
following order and priority:

                  (a) On each Distribution Date prior to the Credit Support
Depletion Date, the Securities Administrator will distribute the Group I
Available Distribution Amount and the Group II Available Distribution Amount in
the following order and priority:

                    (i) On each Distribution Date, the Group I Available
               Distribution Amount will be distributed as follows:

                         (1) FIRST, concurrently to the Group I Senior
                    Certificates, the related Interest Distribution Amount with
                    respect to each such Class; and

                         (2) SECOND, concurrently to the Class I-A-1, Class
                    I-A-3 and Class I-A-4 Certificates from the Group I
                    Available Distribution Amount remaining after payments
                    pursuant to clause (i)(1) above, the related Senior
                    Principal Distribution Amount, on a pro rata basis based on
                    the Certificate Principal Balance of each such Class, until
                    the Certificate Principal Balance of each such Class has
                    been reduced to zero.

                    (ii) On each Distribution Date, the Group II Available
               Distribution Amount will be distributed as follows:

                         (1) FIRST, concurrently to the Class II-A-1
                    Certificates and Class R Certificates, the related Interest
                    Distribution Amount with respect to each such Class; and

                         (2) SECOND, sequentially, to the Class R Certificates
                    and Class I-A-1 Certificates in that order, from the Group
                    II Available Distribution Amount remaining after payments
                    pursuant to clause (ii)(1) above, the related

                                     - 66 -
<PAGE>

                    Senior Principal Distribution Amount, until the Certificate
                    Principal Balance of each such Class has been reduced to
                    zero.

                    (iii) From the Group I Available Distribution Amount and
               Group II Available Distribution Amount remaining after payments
               pursuant to clauses (i)(1), (i)(2), (ii)(1) and (ii)(2) above,
               (i) first, the Senior Interest Shortfall Amount for each Class of
               Group I Senior Certificates and Group II Senior Certificates for
               such Distribution Date, if any, pro rata according to the amount
               of interest to which each such Class would otherwise be entitled,
               (ii) second, an amount equal to the Collateral Deficiency Amount,
               if any, to the Group I Senior Certificates (other than the Class
               I-A-2 Certificates) and Group II Senior Certificates, pro rata
               between the Group I Senior Certificates (other than the Class
               I-A-2 Certificates) and the Group II Senior Certificates based on
               the related Collateral Deficiency Amount and within each group of
               Certificates, on a pro rata basis based on the Certificate
               Principal Balance of each such Class, as a payment of principal
               and (iii) if such Distribution Date is a Cross Payment Trigger
               Date, the Principal Prepayment Amount distributable to the Group
               I Senior Certificates (other than the Class I-A-2 Certificates)
               or Group II Senior Certificates that have been paid in full, will
               be paid as principal to the Group I Senior Certificates (other
               than the Class I-A-2 Certificates) or Group II Senior
               Certificates that have not been paid in full in accordance with
               the priorities set forth in clauses (a)(i) and (a)(ii) above.

                    (iv) From the sum of the remaining Group I Available
               Distribution Amount and Group II Available Distribution Amount,
               after payments pursuant to clauses (i) through (iii) above, to
               the Class M, Class B-1 and Class B-2 Certificates, sequentially,
               in that order, an amount equal to their respective Interest
               Distribution Amounts for such Distribution Date and their pro
               rata share, based on the outstanding Certificate Principal
               Balance of each such Class, of the Subordinate Principal Amount;
               provided, however, that on any Distribution Date on which the
               Subordination Level for any Class of Subordinate Certificates is
               less than the Subordination Level as of the Closing Date, the
               portion of the Subordinate Principal Prepayment Amount otherwise
               payable to the Class or Classes of the Subordinate Certificates
               junior to such Class will be distributed to the most senior Class
               of Subordinate Certificates for which the Subordination Level is
               less than such percentage as of the Closing Date, and to the
               Class or Classes of Subordinate Certificates senior thereto, pro
               rata based on the Certificate Principal Balance of each such
               Class.

                    (v) To the Reserve Fund and then from the Reserve Fund to
               the Group I Senior Certificates (other than the Class I-A-2
               Certificates) in respect of any Net WAC Rate Carryover Amounts as
               follows:

                         (1) FIRST, concurrently to the Holders of the Class
                    I-A-1, Class I-A-3 and Class I-A-4 Certificates, on a pro
                    rata basis based on the related Net WAC Rate Carryover
                    Amount, any amounts received by the Securities Administrator
                    on account of the Cap Contract for such Distribution Date;
                    and

                                     - 67 -
<PAGE>

                         (2) SECOND, concurrently to the Holders of the Class
                    I-A-1, Class I-A-3 and Class I-A-4 Certificates, on a pro
                    rata basis based on the related Net WAC Rate Carryover
                    Amount payable to such Class, any Net WAC Rate Carryover
                    Amounts remaining unpaid after distributions pursuant to
                    clause (v)(1) above.

                    (vi) From the sum of the remaining Group I Available
               Distribution Amount and Group II Available Distribution Amount,
               after payments pursuant to clauses (i) through (v) above, to the
               Class B-3, Class B-4 and Class B-5 Certificates, sequentially, in
               that order, an amount equal to (i) their respective Interest
               Distribution Amounts for such Distribution Date, and (ii) their
               pro rata share, based on the outstanding Certificate Principal
               Balance of each such Class, of the Subordinate Principal Amount;
               provided, however, that on any Distribution Date on which the
               Subordination Level for any Class of Subordinate Certificates is
               less than the Subordination Level as of the Closing Date, the
               portion of the Subordinate Principal Prepayment Amount otherwise
               payable to the Class or Classes of the Subordinate Certificates
               junior to such Class will be distributed to the most senior Class
               of Subordinate Certificates for which the Subordination Level is
               less than such percentage as of the Closing Date, and to the
               Class or Classes of Subordinate Certificates senior thereto, pro
               rata based on the Certificate Principal Balance of each such
               Class.

                    (vii) To the Group I Senior Certificates and Group II Senior
               Certificates, from the Group I Available Distribution Amount and
               Group II Available Distribution Amount, respectively, remaining
               after distributions pursuant to clauses (i) through (vi) above,
               by Pro Rata Allocation, the amount of any unreimbursed losses
               previously allocated to such Classes of Certificates, and then to
               the Subordinate Certificates, in the order of their seniority,
               the amount of any unreimbursed losses previously allocated to
               such Classes of Certificates.

                    (viii) To the Class R Certificates, the remainder (which is
               expected to be zero), if any of the Group I Available
               Distribution Amount and Group II Available Distribution Amount
               remaining after distributions pursuant to clauses (i) through
               (vii) above.

                  On each Distribution Date, the amount of any Prepayment
Charges received in connection with the Loans during the related Prepayment
Period will be paid to the Class I-A-2 Certificates.

                       (b) On each Distribution Date on or after the Credit
Support Depletion Date, to the extent of the Group I Available Distribution
Amount and Group II Available Distribution Amount on such Distribution Date,
distributions will be made to the Group I Senior Certificates and Group II
Senior Certificates in the following order of priority:

                    (i) FIRST, (a) concurrently to the Group I Senior
               Certificates from the Group I Available Distribution Amount, the
               related Interest Distribution Amount pro rata based on the amount
               payable to each such Class, to the extent of

                                     - 68 -
<PAGE>

               amounts available, and (b) to the Group II Senior Certificates
               from the Group II Available Distribution Amount, the related
               Interest Distribution Amount pro rata based on the amount payable
               to each such Class, to the extent of amounts available;

                    (ii) SECOND, (a) to the Group I Senior Certificates (other
               than the Class I-A-2 Certificates) on a pro rata basis based on
               the Certificate Principal Balance of each such Class, the Group I
               Available Distribution Amount remaining after payments pursuant
               to clause (i)(a) above, and (b) to the Group II Senior
               Certificates on a pro rata basis based on the Certificate
               Principal Balance of each such Class, the Group II Available
               Distribution Amount remaining after payments pursuant to clause
               (i)(b) above, in each case until the Certificate Principal
               Balance of each such Class has been reduced to zero;

                    (iii) THIRD, from the Group I Available Distribution Amount
               and Group II Available Distribution Amount remaining after
               payments pursuant to clauses (i) and (ii) above, to each Class of
               Certificates for which a Senior Interest Shortfall Amount exists,
               the Senior Interest Shortfall Amount for such Distribution Date,
               pro rata, based on such Senior Interest Shortfall Amount;

                    (iv) FOURTH, to the Reserve Fund and then from the Reserve
               Fund, concurrently to the Class I-A-1, Class I-A-3 and Class
               I-A-4 Certificates, the Net WAC Rate Carryover Amount payable to
               such Class for such Distribution Date (after taking into account
               all payments received by the Securities Administrator from the
               Cap Contract);

                    (v) FIFTH, (a) from the Group I Available Distribution
               Amount remaining after payments pursuant to clauses (i) through
               (iv) above, to the Group I Senior Certificates (other than the
               Class I-A-2 Certificates) on a pro rata basis based on the
               outstanding Certificate Principal Balance of such Class, the
               amount of any unreimbursed losses previously allocated to each
               such Class and (b) from the Group II Available Distribution
               Amount remaining after payments pursuant to clauses (i) through
               (iv) above, to the Class II-A-1 Certificates and Class R
               Certificates, on a pro rata basis based on the outstanding
               Certificate Principal Balance of such Class, the amount of any
               unreimbursed losses previously allocated to each such Class; and

                    (vi) SIXTH, to the Class R Certificates, the remainder, if
               any (which is expected to be zero), of the Group I Available
               Distribution Amount and Group II Available Distribution Amount
               remaining after distributions pursuant to clauses (i) through (v)
               above.

                  On each Distribution Date, the amount of any Prepayment
Charges received in connection with the Loans during the related Prepayment
Period will be paid to the Class I-A-2 Certificates.

                                     - 69 -
<PAGE>

                  Section 4.2 ALLOCATION REALIZED LOSSES.

                  (a) Prior to each Distribution Date, the Master Servicer,
based solely on the information provided by the related Servicer, shall
determine the amount of Realized Losses, if any, with respect to each Group I
Loan and Group II Loan.

                  (b) Realized Losses, other than Excess Losses, shall be
allocated as follows: (i) for losses allocable to principal, (a) first,
sequentially, to the Class B-5, Class B-4, Class B-3, Class B-2, Class B-1 and
Class M Certificates, in that order, until the Certificate Principal Balance of
each such Class been reduced to zero, and (b) second, with respect to Realized
Losses related to the Group I Loans, concurrently to the Class I-A-1, Class
I-A-3 and Class I-A-4 Certificates, on a pro rata basis based on the Certificate
Principal Balance of each such Class, in each case until the Certificate
Principal Balance of such Class has been reduced to zero; provided, that the pro
rata portion of any such Realized Loss allocable to the Class I-A-3 Certificates
will be allocated first to the Class I-A-4 Certificates, until the Certificate
Principal Balance of the Class I-A-4 Certificates has been reduced to zero, and
then to the Class I-A-3 Certificates, until the Certificate Principal Balance of
the Class I-A-3 Certificates has been reduced to zero and with respect to
Realized Losses related to the Group II Mortgage Loans, to the Class II-A-1
Certificates and Class R Certificates, on a pro rata basis based on the
Certificate Principal Balance of each such Class, in each case until the
Certificate Principal Balance of each such Class has been reduced to zero; and
(ii) for losses allocable to interest, (a) first, sequentially, to the Class
B-5, Class B-4, Class B-3, Class B-2, Class B-1 and Class M Certificates, in
that order, in reduction of accrued but unpaid interest thereon until the amount
of interest accrued on such Certificate on such Distribution Date has been
reduced to zero, and then in reduction of the Certificate Principal Balance of
such Certificate until the Certificate Principal Balance thereof has been
reduced to zero, and (b) second, to the Senior Certificates relating to the Loan
Group for which such Realized Losses have been incurred, by Pro Rata Allocation
until the aggregate of the Certificate Principal Balances thereof have been
reduced to zero; provided that the Pro Rata Allocation of any such Realized Loss
allocable to the Class I-A-3 Certificates will be allocated first to the Class
I-A-4 Certificates, and then to the Class I-A-3 Certificates. In addition, to
the extent the related Servicer receives Subsequent Recoveries with respect to
any defaulted Loan, the amount of the Realized Loss with respect to that
defaulted Loan will be reduced to the extent such Subsequent Recoveries are
applied to reduce the Certificate Principal Balance of any Class of Certificates
on any Distribution Date.

                  (c) Excess Losses with respect to the Group I Loans and Group
II Loans will be allocated to the outstanding Class or Classes of Senior
Certificates (other than the Class I-A-2 Certificates) of the related Loan Group
and to the Subordinate Certificates by Pro Rata Allocation.

                  (d) On each Distribution Date, if the aggregate Certificate
Principal Balance of the Group I Senior Certificates (other than the Class I-A-2
Certificates), Group II Senior Certificates and Subordinate Certificates exceeds
the aggregate Principal Balance of the Group I Loans and Group II Loans (after
giving effect to distributions of principal and the allocation and reimbursement
of all losses on the related certificates on such Distribution Date), such
excess will be deemed a principal loss and will be allocated to the Subordinate
Certificates in reverse order of seniority until the Certificate Principal
Balance of each such Class has been

                                     - 70 -
<PAGE>

reduced to zero. If the Certificate Principal Balance of each Subordinate
Certificate has been reduced to zero and the aggregate Certificate Principal
Balance of the Group I Senior Certificates (other than the Class I-A-2
Certificates) and Group II Senior Certificates exceeds the aggregate Principal
Balance of the Group I Loans and Group II Loans (after giving effect to
distributions of principal and the allocation and reimbursement of all losses on
the Certificates on such Distribution Date), such excess will be deemed a
principal loss and, if attributable to the Group I Loans, will be allocated to
the Group I Senior Certificates (other than the Class I-A-2 Certificates) by Pro
Rata Allocation until the Certificate Principal Balance of each such Class has
been reduced to zero; provided that the Pro Rata Allocation of any such Realized
Loss allocable to the Class I-A-3 Certificates will be allocated first to the
Class I-A-4 Certificates, and then to the Class I-A-3 Certificates, and if
attributable to the Group II Loans, will be allocated to the Group II Senior
Certificates by Pro Rata Allocation, until Certificate Principal Balance of each
such Class has been reduced to zero.

                  (e) Realized Losses from the Group I Loans and Group II Loans
shall be applied after all distributions have been made on each Distribution
Date, first, to REMIC I Regular Interest LT-1SUB and REMIC I Regular Interest
LT-2SUB, as applicable, so that the Uncertificated Balance of each such REMIC I
Regular Interest is equal to 0.1% of the excess of (x) the aggregate Scheduled
Principal Balance of the Loans in the related Loan Group over (y) the current
Certificate Principal Balance of the Group I Senior Certificates (other than the
Class I-A-2 Certificates) or Group II Senior Certificates, as applicable (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 second, any remaining Realized Losses from each Loan Group
shall be allocated to REMIC I Regular Interest LT-ZZZ.

                  Realized Losses from the Group I Loans and the Group II Loans
shall be applied after all distributions have been made on each Distribution
Date, first, to REMIC II Regular Interest LT-ISUB and REMIC II Regular Interest
LT-IISUB, respectively, and second, any remaining Realized Losses from each Loan
Group shall be allocated to REMIC II Regular Interest LT-IA and REMIC II Regular
Interest LT-IIA1, respectively.

                  Section 4.3 REDUCTION OF CERTIFICATE PRINCIPAL BALANCES ON THE
CERTIFICATES.

                  (a) All reductions in the Certificate Principal Balance of a
Certificate effected by distributions of principal or allocations of Realized
Losses with respect to the related Loans made on any Distribution Date shall be
binding upon all Holders of such Certificate and of any Certificate issued upon
the registration of transfer or exchange therefor or in lieu thereof, whether or
not such distribution is noted on such Certificate. Any Subsequent Recoveries
collected by the Servicers will be distributed as part of the Available
Distribution Amount in accordance with the priorities described under Section
4.1. Holders of such Certificates will not be entitled to any payment in respect
of current interest on the amount of such increases for any Interest Accrual
Period preceding the Distribution Date on which such increase occurs.

                  (b) The final distribution of principal of each Certificate
(and the final distribution with respect to the Residual Certificates upon
termination of the Trust Fund) shall be payable in the manner provided above
only upon presentation and surrender thereof on or after the

                                     - 71 -
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Distribution Date therefor at the office or agency of the Securities
Administrator specified in the notice delivered pursuant to Section 4.6, Section
9.1 or Section 9.3.

                  (c) Whenever, on the basis of Curtailments, Payoffs and
Monthly Payments on the Loans and related Insurance Proceeds and Liquidation
Proceeds received and expected to be received during the applicable Prepayment
Period, the Securities Administrator believes that the entire remaining unpaid
aggregate Certificate Principal Balance of any Class of Certificates shall
become distributable on the next Distribution Date, the Securities Administrator
shall, no later than the Determination Date of the month of such Distribution
Date, mail or cause to be mailed to each Person in whose name a Certificate to
be so retired is registered at the close of business on the Record Date, to the
Underwriter and to each Rating Agency a notice to the effect that:

                    (i) it is expected that funds sufficient to make such final
               distribution shall be available in the Distribution Account on
               such Distribution Date, and

                    (ii) if such funds are available, (A) such final
               distribution shall be payable on such Distribution Date, but only
               upon presentation and surrender of such Certificate at the office
               or agency of the Securities Administrator maintained for such
               purpose (the address of which shall be set forth in such notice),
               and (B) no interest shall accrue on such Certificate after such
               Distribution Date.

                  Section 4.4 COMPLIANCE WITH WITHHOLDING REQUIREMENTS.

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

                  Section 4.5 DISTRIBUTIONS ON THE UNCERTIFICATED REMIC REGULAR
INTERESTS

                  Distributions of principal from the Loans shall be deemed to
be made to the REMIC I Regular Interests, in each case from the related Loan
Group, first, to REMIC I Regular Interest LT-1SUB and REMIC I Regular Interest
LT-2SUB, as applicable, so that the Uncertificated Principal Balance of each
such REMIC I Regular Interest is equal to 0.1% of the excess of (x) the
aggregate Scheduled Principal Balance of the Loans in the related Loan Group
over (y) the current Certificate Principal Balance of the Group I Senior
Certificates or Group II Senior or Certificates related to such Loan Group
(except that if any such excess 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 second, any remaining principal in each Loan Group to REMIC I
Regular Interest LT-ZZZ. Interest shall be payable to each REMIC I Regular
Interest at the

                                     - 72 -
<PAGE>

related Uncertificated REMIC I Pass-Through Rate on each such REMIC I Regular
Interest's Uncertificated Principal Balance.

                  Distributions of principal from the Loans shall be deemed to
be made to the REMIC II Regular Interests, in each case from the related Loan
Group, first, to REMIC II Regular Interest LT-IA, REMIC II Regular Interest
LT-IIA1 and REMIC II Regular Interest LT-R, as applicable, and second, any
remaining principal in each Loan Group to REMIC II Regular Interest LT-ISUB and
REMIC II Regular Interest LT-IISUB, as applicable. Interest shall be payable to
each REMIC II Regular Interest at the related Uncertificated REMIC II
Pass-Through Rate on each such REMIC II Regular Interest's Uncertificated
Principal Balance.

                  Section 4.6 STATEMENTS TO CERTIFICATEHOLDERS.

                  On each Distribution Date, the Securities Administrator shall
provide or make available, upon request to each Holder of a Certificate and the
Credit Risk Manager, a statement (each, a "Remittance Report") as to the
distributions made to such Certificateholders on such Distribution Date setting
forth:

                    (i) the amount of the distribution made on such Distribution
               Date to the Holders of the Certificates allocable to principal;

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

                    (iii) the aggregate Servicing Fee received by each Servicer
               during the related Due Period;

                    (iv) the number and aggregate Principal Balance of the Group
               I Loans and Group II Loans delinquent one, two and three months
               or more;

                    (v) the (A) number and aggregate Principal Balance of Group
               I Loans and Group II Loans with respect to which foreclosure
               proceedings have been initiated, and (B) the number and aggregate
               Principal Balance of Mortgaged Properties acquired through
               foreclosure, deed in lieu of foreclosure or other exercise of
               rights respecting the Trustee's security interest in the Group I
               Loans and Group II Loans;

                    (vi) the aggregate Principal Balance of the Group I Loans
               and Group II Loans as of the close of business on the last day of
               the related Prepayment Period;

                    (vii) the amount of Special Hazard Coverage available to the
               Group I Senior Certificates and Group II Senior Certificates
               remaining as of the close of business on the applicable
               Determination Date;

                    (viii) the amount of Bankruptcy Coverage available to the
               Group I Senior Certificates and Group II Senior Certificates
               remaining as of the close of business on the applicable
               Determination Date;

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<PAGE>

                    (ix) the amount of Fraud Coverage available to the Group I
               Senior Certificates and Group II Senior Certificates remaining as
               of the close of business on the applicable Determination Date;

                    (x) the amount of Realized Losses with respect to the Group
               I Loans and Group II Loans allocable to the Certificates on the
               related Distribution Date and the cumulative amount of Realized
               Losses incurred and allocated to the related Certificates since
               the Cut-Off Date;

                    (xi) the amount of interest accrued but not paid to each
               Class of Certificates entitled to interest since (a) the prior
               Distribution Date and (b) the Closing Date;

                    (xii) the amount of funds advanced by each Servicer and the
               Master Servicer for such Distribution Date with respect to Group
               I Loans and Group II Loans;

                    (xiii) the total amount of Payoffs and Curtailments received
               during the related Prepayment Period with respect to Group I
               Loans and Group II Loans and the aggregate amount of any
               Prepayment Charges received in respect thereof;

                    (xiv) with respect to any Group I Loan and Group II Loan
               that became an REO Property during the preceding calendar month,
               the loan number of such Loan, the Principal Balance and the
               Scheduled Principal Balance of such Loan;

                    (xv) to the extent provided by the related Servicer, the
               book value of any REO Property as of the close of business on the
               last Business Day of the calendar month preceding the
               Distribution Date with respect to the Group I Loans and Group II
               Loans;

                    (xvi) the aggregate amount of Extraordinary Trust Fund
               expenses withdrawn from the Distribution Account for such
               Distribution Date;

                    (xvii) the aggregate Certificate Principal Balance 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;

                    (xviii) the aggregate amount of any Prepayment Interest
               Shortfalls for such Distribution Date on the Group I Loans and
               Group II Loans, to the extent not covered by payments by the
               Master Servicer pursuant to Section 3.20;

                    (xix) the aggregate amount of Relief Act Interest Shortfalls
               for such Distribution Date with respect to the Group I Loans and
               Group II Loans;

                                     - 74 -
<PAGE>

                    (xx) the respective Pass-Through Rates applicable to each
               Class of Certificates as of such Distribution Date;

                    (xxi) the Net WAC Rate Carryover Amount, if any, for such
               Distribution Date;

                    (xxii) the Net WAC Rate Carryover Amount, if any,
               outstanding after reimbursements therefor on such Distribution
               Date;

                    (xxiii) the amount of any deposit to the Reserve Fund
               contemplated by Section 3.25;

                    (xxiv) the balance of the Reserve Fund prior to the deposit
               or withdrawal of any amounts on such Distribution Date;

                    (xxv) the amount of any withdrawal from the Reserve Fund
               pursuant to Section 4.1(a)(v) and (b)(iv); and

                    (xxvi) the balance of the Reserve Fund after all deposits
               and withdrawals on such Distribution Date.

                  The Securities Administrator shall make such statement (and,
at its option, any additional files containing the same information in an
alternative format) available each month to the Certificateholders, the Trustee
and the Rating Agencies via the Securities Administrator's internet website. The
Securities Administrator's internet website shall initially be located at
http:\\www.ctslink.com and assistance in using the website can be obtained by
calling the Securities Administrator's customer service desk at 1-301-815-6600.
Parties that are unable to use the above distribution option are entitled to
have a paper copy mailed to them via first class mail by calling the customer
service desk and indicating such. The Securities Administrator shall have the
right to change the way such statements are distributed in order to make such
distribution more convenient and/or more accessible to the above parties and the
Securities Administrator shall provide timely and adequate notification to all
above parties regarding any such changes.

                  In the case of information furnished pursuant to subclause (i)
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 Securities Administrator shall furnish to each Person who at
any time during the calendar year was a Holder of a Regular Interest
Certificate a statement containing the information set forth in subclause (i)
above, aggregated for such calendar year or applicable portion thereof during
which such person was a Certificateholder. Such obligation of the Securities
Administrator shall be deemed to have been satisfied to the extent that
substantially comparable information shall be provided by the Securities
Administrator pursuant to any requirements of the Code as from time to time are
in force.

                  Within a reasonable period of time after the end of each
calendar year, the Securities Administrator shall furnish to each Person who at
any time during the calendar year

                                     - 75 -
<PAGE>

was a Holder of a Class R Certificate a statement setting forth the amount, if
any, actually distributed with respect to the Class R Certificates aggregated
for such calendar year or applicable portion thereof during which such Person
was a Certificateholder.

                  The Securities Administrator shall, upon request, furnish to
each Certificateholder, during the term of this Agreement, such periodic,
special, or other reports or information, whether or not provided for herein, as
shall be reasonable with respect to the Certificateholder, as applicable, 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.

                  On each Distribution Date the Securities Administrator 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 Securities Administrator and Bloomberg.

                  Section 4.7 ADVANCES.

                  If the Monthly Payment on a Loan or a portion thereof is
delinquent as of its Due Date, other than as a result of interest shortfalls due
to bankruptcy proceedings or application of the Relief Act, and the related
Servicer fails to make an advance of the delinquent amount pursuant to the
related Servicing Agreement, the Master Servicer shall deposit in the
Distribution Account, from its own funds or from amounts on deposit in the
Distribution Account that are held for future distribution, not later than the
Distribution Account Deposit Date immediately preceding the related Distribution
Date an amount equal to such delinquency, net of the Servicing Fee for such Loan
except to the extent the Master Servicer determines any such advance to be
nonrecoverable from Liquidation Proceeds, Insurance Proceeds, or future payments
on the Loan for which such Advance was made. Any amounts held for future
distribution and so used shall be appropriately reflected in the Master
Servicer's records and replaced by the Master Servicer by deposit in the
Distribution Account on or before any future Distribution Account Deposit Date
to the extent that the Group I Available Distribution Amount or Group II
Available Distribution Amount (determined without regard to Advances to be made
on the related Distribution Account Deposit Date) shall be less than the total
amount that would be distributed to the related Classes of Certificateholders
pursuant to Section 4.1 on such Distribution Date if such amounts held for
future distributions had not been so used to make Advances. Subject to the
foregoing, the Master Servicer shall continue to make such Advances through the
date that the related Servicer is required to do so under its Servicing
Agreement. In the event the Master Servicer elects not to make an Advance
because the Master Servicer deems such Advance nonrecoverable pursuant to this
Section 4.7 on the related Distribution Account Deposit Date, the Master
Servicer shall present an Officer's Certificate to the Trustee (i) stating that
the Master Servicer elects not to make an Advance in a stated amount and (ii)
detailing the reason it deems the advance to be nonrecoverable.

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<PAGE>

                                   ARTICLE V

                                THE CERTIFICATES

                  Section 5.1 THE CERTIFICATES.

                  (a) The Certificates in the aggregate will represent the
entire beneficial ownership interest in the 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-7. 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 and
authenticated by the Securities Administrator and delivered by the Trustee to
and upon the written order of the Depositor. The Certificates shall be executed
by manual or facsimile signature on behalf of the Trust by the Securities
Administrator by an authorized signatory. Certificates bearing the manual or
facsimile signatures of individuals who were at any time the proper officers of
the Securities Administrator shall bind the Trust, 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 Securities Administrator 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 Certificates, other than the Class R Certificates and
Junior Subordinate 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 Securities Administrator 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 Securities Administrator 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 Servicers, the
Master Servicer and, if the Trustee is not the Book-Entry Custodian,

                                     - 77 -
<PAGE>

the Trustee, any other transfer agent (including the Depository or any successor
Depository) to act 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 Securities Administrator
resigns or is removed in accordance with the terms hereof, the successor
Securities Administrator 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.

                  (c) Any Junior Subordinate Certificate initially offered and
sold in offshore transactions in reliance on Regulation S shall be issued in the
form of a temporary global certificate in definitive, fully registered form
(each, a "Regulation S Temporary Global Certificate"), which shall be deposited
with the Securities Administrator or an agent of the Securities Administrator as
custodian for the Depository and registered in the name of Cede & Co. as nominee
of the Depository for the account of designated agents holding on behalf of
Euroclear or Clearstream. Beneficial interests in each Regulation S Temporary
Global Certificate may be held only through Euroclear or Clearstream; provided,
however, that such interests may be exchanged for interests in a Definitive
Certificate in accordance with the requirements described in Section 5.02. After
the expiration of the Release Date, a beneficial interest in a Regulation S
Temporary Global Certificate may be exchanged for a beneficial interest in the
related permanent global certificate of the same Class (each, a "Regulation S
Permanent Global Certificate"), in accordance with the procedures set forth in
Section 5.02. Each Regulation S Permanent Global Certificate shall be deposited
with the Securities Administrator or an agent of the Securities Administrator as
custodian for the Depository and registered in the name of Cede & Co. as nominee
of the Depository.

                  (d) The Junior Subordinate Certificates offered and sold to
Qualified Institutional Buyers ("QIBs") in reliance on Rule 144A under the
Securities Act ("Rule 144A") will be issued in the form of Definitive
Certificates.

                  (e) The Trustee, the Servicers, the Securities Administrator,
the Master Servicer and the Depositor may for all purposes (including the making
of payments due on the Book-Entry Certificates and Global Certificates) deal
with the Depository as the authorized representative of the Certificate Owners
with respect to the Book-Entry Certificates and Global Certificates for the
purposes of exercising the rights of Certificateholders hereunder. The rights of
Certificate Owners with respect to the Book-Entry Certificates and Global
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 and Global
Certificates with respect to any particular matter shall not be deemed
inconsistent if they are made with respect to different Certificate Owners. The
Securities Administrator 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 Securities Administrator
in writing that the Depository is no longer willing or able to properly
discharge its responsibilities as Depository,

                                     - 78 -
<PAGE>

and (B) the Depositor is unable to locate a qualified successor, (ii) the
Depositor at its option advises the Securities Administrator 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 Securities Administrator 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 Securities
Administrator 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. With respect to a Global
Certificate, the related Certificate Owner (other than a Holder of a Regulation
S Temporary Global Certificate) may request that its interest in a Global
Certificate be exchanged for a Definitive Certificate. Upon surrender to the
Securities Administrator of the Book-Entry Certificates by the Book-Entry
Custodian or the Depository, as applicable, or the Global Certificates by the
Depository accompanied by registration instructions from the Depository for
registration of transfer, the Securities Administrator shall cause the
Definitive Certificates to be issued. Such Definitive Certificates will be
issued in minimum denominations of $10,000 except that any beneficial ownership
that was represented by a Book-Entry Certificate, or a Global Certificate, as
applicable in an amount less than $10,000 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 or a Global Certificate, as
applicable. None of the Depositor, the Servicers, the Master Servicer, the
Securities Administrator or 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 Securities Administrator on behalf of the Trustee, to the extent applicable
with respect to such Definitive Certificates, and the Securities Administrator
on behalf of the Trustee shall recognize the Holders of the Definitive
Certificates as Certificateholders hereunder.

                    (f) Neither the Trustee nor the Securities Administrator
               shall have any liability to the Trust Fund and shall be
               indemnified by the Trust Fund for, any cost, liability or expense
               incurred by them arising from a registration of a Certificate or
               transfer, pledge sale or other disposition of a Certificate in
               reliance upon a certification, Officer's Certificate, affidavit,
               ruling or Opinion of Counsel described in this Article V.

                  Section 5.2 REGISTRATION OF TRANSFER AND EXCHANGE OF
CERTIFICATES.

                  (a) The Securities Administrator shall cause to be kept at one
of the offices or agencies to be appointed by the Securities Administrator 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 Securities Administrator shall provide for the registration of
Certificates and of transfers and exchanges of Certificates as herein provided.

                  (b) No transfer of any Junior Subordinate 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

                                     - 79 -
<PAGE>

qualification. In the event that such a transfer of a Junior Subordinate
Certificate is to be made without registration or qualification (other than in
connection with the initial transfer of any such Certificate by the Depositor),
the Securities Administrator 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 form
attached hereto as Exhibit B-1; (ii) if such transfer is purportedly being made
in reliance upon Rule 501(a) under the 1933 Act, written certifications from the
Certificateholder desiring to effect the transfer and from such
Certificateholder's prospective transferee, substantially in the form attached
hereto as Exhibit B-2; (iii) if such transfer is purportedly being made in
reliance on Regulation S, a written certification from the prospective
transferee, substantially in the form attached hereto as Exhibit B-3 and (iv) in
all other cases, an Opinion of Counsel satisfactory to the Securities
Administrator 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 Master Servicer, the Securities
Administrator or the Servicers), 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. Neither of the Depositor nor the Securities
Administrator 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, the Master Servicer, the Securities Administrator
and the Servicers 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.

                  A holder of a beneficial interest in a Regulation S Temporary
Global Certificate must provide Euroclear or Clearstream, as the case may be,
with a certificate in the form of Annex A to Exhibit B-4 hereto certifying that
the beneficial owner of the interest in such Global Certificate is not a U.S.
Person (as defined in Regulation S), and Euroclear or Clearstream, as the case
may be, must provide to the Trustee and Securities Administrator a certificate
in the form of Exhibit B-4 hereto prior to (i) the payment of interest or
principal with respect to such holder's beneficial interest in the Regulation S
Temporary Global Certificate and (ii) any exchange of such beneficial interest
for a beneficial interest in a Regulation S Permanent Global Certificate.

                  (c) No transfer of a Residual Certificate or Junior
Subordinate 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") unless the
Securities Administrator is provided with an Opinion of Counsel on which the
Depositor, the Master Servicer, the Securities Administrator, the Trustee and
the Servicers may rely, which establishes to the satisfaction of the Securities
Administrator 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
Servicers, the Trustee, the Master Servicer, the Securities Administrator 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,

                                     - 80 -
<PAGE>

the Servicers, the Trustee, the Master Servicer, the Securities Administrator,
the Trust Fund. An Opinion of Counsel will not be required in connection with
the initial transfer of any such Certificate by the Depositor to an affiliate of
the Depositor (in which case, 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 Securities Administrator shall be entitled to
conclusively rely upon a representation (which, upon the request of the
Securities Administrator, shall be a written representation) from the Depositor
of the status of such transferee as an affiliate of the Depositor.

                  Each Transferee of a Class M, Class B-1 or Class B-2
Certificate will be deemed to have represented by virtue of its purchase or
holding of such Certificate (or interest therein) that either (a) such
Transferee is not a Plan or purchasing such Certificate with Plan Assets, (b) it
has acquired and is holding such Certificate in reliance on Prohibited
Transaction Exemption ("PTE") 94-84 or FAN 97-03E, as amended by PTE 97-34, 62
Fed. Reg. 39021 (July 21, 1997), PTE 2000-58, 65 Fed. Reg. 67765 (November 13,
2000) and PTE 2002-41, 67 Fed. Reg. 54487 (August 22, 2002) (the "Exemption"),
and that it understands that there are certain conditions to the availability of
the Exemption including that such Certificate must be rated, at the time of
purchase, not lower than "BBB-" (or its equivalent) by a Rating Agency or (c)
the following conditions are satisfied: (i) such Transferee is an insurance
company, (ii) the source of funds used to purchase or hold such Certificate (or
interest therein) is an "insurance company general account" (as defined in PTCE
95-60, and (iii) the conditions set forth in Sections I and III of PTCE 95-60
have been satisfied.

                  If any Certificate or any interest therein is acquired or held
in violation of the conditions described in this Section 5.2(c), 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 certificate or interest therein was effected in violation of the conditions
described in this Section 5.2(c) shall indemnify and hold harmless the
Depositor, the Trustee, the Servicers, the Master Servicer, the Securities
Administrator 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) Each Transferee of a Class R Certificate shall be deemed
by the acceptance or acquisition of the related Ownership Interest to have
agreed to be bound by the following provisions and to have irrevocably appointed
the Depositor or its designee as its attorney-in-fact to negotiate the terms of
any mandatory sale under clause (v) below and to execute all instruments of
transfer and to do all other things necessary in connection with any such sale,
and the rights of each Transferee of a Class R Certificate are expressly subject
to the following provisions:

                    (i) Each such Transferee shall be a Permitted Transferee and
               shall promptly notify the Securities Administrator of any change
               or impending change in its status as a Permitted Transferee.

                    (ii) No Person shall acquire an Ownership Interest in a
               Class R Certificate unless such Ownership Interest is a pro rata
               undivided interest.

                                     - 81 -
<PAGE>

                    (iii) In connection with any proposed transfer of any
               Ownership Interest in a Class R Certificate, the Securities
               Administrator shall as a condition to registration of the
               transfer, require delivery to it, in form and substance
               satisfactory to it, of each of the following:

                         (A) an affidavit in the form of Exhibit C hereto from
                    the proposed Transferee to the effect that such Transferee
                    is a Permitted Transferee and that it is not acquiring its
                    Ownership Interest in the Class R Certificate that is the
                    subject of the proposed transfer as a nominee, trustee or
                    agent for any Person who is not a Permitted Transferee; and

                         (B) a covenant of the proposed Transferee to the effect
                    that the proposed Transferee agrees to be bound by and to
                    abide by the transfer restrictions applicable to the Class R
                    Certificates.

                    (iv) Any attempted or purported transfer of any Ownership
               Interest in a Class R Certificate in violation of the provisions
               of this Section shall be absolutely null and void and shall vest
               no rights in the purported Transferee. If any purported
               Transferee shall, in violation of the provisions of this Section,
               become a Holder of a Class R Certificate, then the prior Holder
               of such Class R Certificate that is a Permitted Transferee shall,
               upon discovery that the registration of transfer of such Class R
               Certificate was not in fact permitted by this Section, be
               restored to all rights as Holder thereof retroactive to the date
               of registration of transfer of such Class R Certificate. The
               Securities Administrator shall be under no liability to any
               Person for any registration of transfer of a Class R Certificate
               that is in fact not permitted by this Section or for making any
               distributions due on such Class R Certificate to the Holder
               thereof or taking any other action with respect to such Holder
               under the provisions of this Agreement so long as the Securities
               Administrator received the documents specified in clause (iii).
               The Securities Administrator shall be entitled to recover from
               any Holder of a Class R Certificate that was in fact not a
               Permitted Transferee at the time such distributions were made all
               distributions made on such Class R Certificate. Any such
               distributions so recovered by the Securities Administrator shall
               be distributed and delivered by the Securities Administrator to
               the prior Holder of such Class R Certificate that is a Permitted
               Transferee.

                    (v) If any Person other than a Permitted Transferee acquires
               any Ownership Interest in a Class R Certificate in violation of
               the restrictions in this Section, then the Securities
               Administrator shall have the right but not the obligation,
               without notice to the Holder of such Class R Certificate or any
               other Person having an Ownership Interest therein, to notify the
               Depositor to arrange for the sale of such Class R Certificate.
               The proceeds of such sale, net of commissions (which may include
               commissions payable to the Depositor or its affiliates in
               connection with such sale), expenses and taxes due, if any, will
               be remitted by the Securities Administrator to the previous
               Holder of such Class R Certificate that is a Permitted
               Transferee, except that in the event that the Securities
               Administrator determines that the Holder of such Class R
               Certificate may be

                                     - 82 -
<PAGE>

               liable for any amount due under this Section or any other
               provisions of this Agreement, the Securities Administrator may
               withhold a corresponding amount from such remittance as security
               for such claim. The terms and conditions of any sale under this
               clause (v) shall be determined in the sole discretion of the
               Securities Administrator and it shall not be liable to any Person
               having an Ownership Interest in a Class R Certificate as a result
               of its exercise of such discretion.

                    (vi) If any Person other than a Permitted Transferee
               acquires any Ownership Interest in a Class R Certificate in
               violation of the restrictions in this Section, then the
               Securities Administrator upon receipt of reasonable compensation
               will provide to the Internal Revenue Service, and to the persons
               specified in Sections 860E(e)(3) and (6) of the Code, information
               needed to compute the tax imposed under Section 860E(e)(5) of the
               Code on transfers of Class R interests to Disqualified
               Organizations.

                  The foregoing provisions of this Section shall cease to apply
to transfers occurring on or after the date on which there shall have been
delivered to the Securities Administrator, in form and substance satisfactory to
the Securities Administrator, (i) written notification from each Rating Agency
that the removal of the restrictions on transfer set forth in this Section will
not cause such Rating Agency to downgrade its rating of the Certificates and
(ii) an Opinion of Counsel to the effect that such removal will not cause any
REMIC created hereunder to fail to qualify as a REMIC. The Holder of the Class R
Certificate issued hereunder, while not a Disqualified Organization, is the Tax
Matters Person.

                  (e) Subject to the preceding subsections, upon surrender for
registration of transfer of any Certificate at any office or agency of the
Securities Administrator maintained for such purpose pursuant to Section 8.11,
the Securities Administrator shall execute, authenticate and deliver, in the
name of the 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 Securities
Administrator maintained for such purpose pursuant to Section 8.11. Whenever any
Certificates are so surrendered for exchange, the Securities Administrator 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 Securities
Administrator) be duly endorsed by, or be accompanied by a written instrument of
transfer in the form satisfactory to the Securities Administrator duly executed
by, the Holder thereof or his attorney duly authorized in writing.

                  (g) No service charge to the Certificateholders shall be made
for any transfer or exchange of Certificates, but the Securities Administrator
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.

                                     - 83 -
<PAGE>

                  (h) All Certificates surrendered for transfer and exchange
shall be canceled and destroyed by the Securities Administrator in accordance
with its customary procedures.

                  Section 5.3 MUTILATED, DESTROYED, LOST OR STOLEN CERTIFICATES.

                  If (i) any mutilated Certificate is surrendered to the
Securities Administrator, or the Securities Administrator receives evidence to
its satisfaction of the destruction, loss or theft of any Certificate and of the
ownership thereof, and (ii) there is delivered to Securities Administrator such
security or indemnity as may be required by it to save it harmless, then, in the
absence of actual knowledge by the Securities Administrator that such
Certificate has been acquired by a protected purchaser, the Securities
Administrator, 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 Securities
Administrator 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 Securities Administrator)
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 5.4 PERSONS DEEMED OWNERS.

                  The Depositor, the Servicers, the Trustee, the Master
Servicer, the Securities Administrator 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 4.1
and for all other purposes whatsoever, and none of the Depositor, the Servicers,
the Trustee, the Master Servicer, the Securities Administrator or any agent of
any of them shall be affected by notice to the contrary.

                  Section 5.5 CERTAIN AVAILABLE INFORMATION.

                  On or prior to the date of the first sale of any Junior
Subordinate Certificate to an Independent third party, the Depositor shall
provide to the Securities Administrator ten copies of any private placement
memorandum or other disclosure document used by the Depositor in connection with
the offer and sale of such Certificate. 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 Securities Administrator, the
Depositor promptly shall inform the Securities Administrator of such event and
shall deliver to the Securities Administrator ten copies of the private
placement memorandum or disclosure document, as revised, amended or
supplemented. The Securities Administrator shall maintain at its office as set
forth in Section 11.5 hereof 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 Securities Administrator 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 Junior Subordinate Certificate, the
private placement memorandum or other disclosure document relating to such Class
of

                                     - 84 -
<PAGE>

Certificates, in the form most recently provided to the Securities
Administrator; and (ii) in all cases, (A) this Agreement and any amendments
hereof entered into pursuant to Section 10.1, (B) all monthly statements
required to be delivered to Certificateholders of the Junior Subordinate
Certificates pursuant to Section 4.6 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 and (C) any copies of all Officers' Certificates of the Servicers
since the Closing Date delivered to the Master Servicer to evidence such
Person's determination that any Monthly Advance or Servicing Advance was, or if
made, would be a Nonrecoverable Monthly Advance or Nonrecoverable Servicing
Advance. Copies and mailing of any and all of the foregoing items will be
available from the Securities Administrator upon request at the expense of the
Person requesting the same.

                                   ARTICLE VI

        THE DEPOSITOR AND THE MASTER SERVICER AND THE CREDIT RISK MANAGER

                  Section 6.1 LIABILITY OF THE DEPOSITOR AND THE MASTER
SERVICER.

                  The Depositor and the Master 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
Master Servicer and undertaken hereunder by the Depositor and the Master
Servicer herein.

                  Section 6.2 MERGER OR CONSOLIDATION OF THE DEPOSITOR OR THE
MASTER SERVICER.

                  Subject to the following paragraph, the Depositor shall 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
paragraph, the Master Servicer shall keep in full effect its existence, rights
and franchises as a corporation under the laws of the jurisdiction of its
formation. The Depositor and the Master Servicer each shall 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 Loans and to
perform its respective duties under this Agreement.

                  The Depositor or the Master 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 Master Servicer shall be a party, or
any Person succeeding to the business of the Depositor or the Master Servicer,
shall be the successor of the Depositor or the Master 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 Rating Agencies' ratings of the
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).

                                     - 85 -
<PAGE>

                  Section 6.3 LIMITATION ON LIABILITY OF THE DEPOSITOR, THE
MASTER SERVICER, THE SERVICERS, THE SECURITIES ADMINISTRATOR AND OTHERS.

                  None of the Depositor, the Master Servicer, the Securities
Administrator, the Servicers or any of the directors, officers, employees or
agents of the Depositor, the Master Servicer, the Securities Administrator or
the Servicers 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 the Servicing Agreements, or
for errors in judgment; provided, however, that this provision shall not protect
the Depositor, the Master Servicer, the Securities Administrator, the Servicers
or any such person against any breach of warranties, representations or
covenants made herein or in the Servicing Agreements, or against any specific
liability imposed on the Master Servicer, the Securities Administrator or the
Servicers pursuant hereto or pursuant to the Servicing Agreements, 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 under the Servicing
Agreements. The Depositor, the Master Servicer, the Securities Administrator,
the Servicers and any director, officer, employee or agent of the Depositor, the
Master Servicer, the Securities Administrator or the Servicers 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 or under the
Servicing Agreements. The Depositor, the Master Servicer, the Servicers, the
Securities Administrator, the Custodian and any director, officer, employee or
agent of the Depositor, the Master Servicer, the Servicers, the Custodian or the
Securities Administrator 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, the Certificates, any Servicing
Agreement or the Cap Contract, or any loss, liability or expense incurred by any
of such Persons other than by reason of such Person's willful misfeasance, bad
faith or gross negligence in the performance of its duties hereunder or by
reason of reckless disregard of its obligations and duties hereunder. None of
the Depositor, the Master Servicer, the Securities Administrator, the Custodian
or any 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, the Custodial Agreement, the applicable Servicing Agreement or
the Cap Contract and, in its opinion, does not involve it in any expense or
liability; provided, however, that each of the Depositor, the Master Servicer,
the Custodian and the Securities Administrator 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, 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 Master Servicer, the Custodian, the
Servicers and the Securities Administrator shall be entitled to be reimbursed
therefor from the related Distribution Account as and to the extent provided in
Article III, any such right of reimbursement being prior to the rights of the
Certificateholders to receive any amount in the related Distribution Account.

                                     - 86 -
<PAGE>

                  Section 6.4 LIMITATION ON RESIGNATION OF THE MASTER SERVICER.

                  The Master 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 Master Servicer
shall be evidenced by an Opinion of Counsel to such effect obtained at the
expense of the Master Servicer and delivered to the Trustee and the Rating
Agencies. No resignation of the Master Servicer shall become effective until the
Trustee or a successor Master Servicer shall have assumed the Master Servicer's
responsibilities, duties, liabilities (other than those liabilities arising
prior to the appointment of such successor) and obligations under this
Agreement.

                  Section 6.5 ASSIGNMENT OF MASTER SERVICING.

                  The Master Servicer may sell and assign its rights and
delegate its duties and obligations in its entirety as Master Servicer under
this Agreement; provided, however, that: (i) the purchaser or transferee
accepting such assignment and delegation (a) shall be a Person which shall be
qualified to service mortgage loans for Fannie Mae or Freddie Mac; (b) shall
have a net worth of not less than $15,000,000 (unless otherwise approved by each
Rating Agency pursuant to clause (ii) below); (c) shall be reasonably
satisfactory to the Trustee (as evidenced in a writing signed by the Trustee);
and (d) shall execute and deliver to the Trustee an agreement, in form and
substance reasonably satisfactory to the Trustee, which contains an assumption
by such Person of the due and punctual performance and observance of each
covenant and condition to be performed or observed by it as master servicer
under this Agreement, any custodial agreement from and after the effective date
of such agreement; (ii) each Rating Agency shall be given prior written notice
of the identity of the proposed successor to the Master Servicer and each Rating
Agency's rating of the Certificates in effect immediately prior to such
assignment, sale and delegation will not be downgraded, qualified or withdrawn
as a result of such assignment, sale and delegation, as evidenced by a letter to
such effect delivered to the Master Servicer and the Trustee; and (iii) the
Master Servicer assigning and selling the master servicing shall deliver to the
Trustee an officer's certificate and an Opinion of Independent counsel, each
stating that all conditions precedent to such action under this Agreement have
been completed and such action is permitted by and complies with the terms of
this Agreement. No such assignment or delegation shall affect any liability of
the Master Servicer arising prior to the effective date thereof.

                  Section 6.6 RIGHTS OF THE DEPOSITOR IN RESPECT OF THE MASTER
SERVICER.

                  The Master Servicer shall afford the Depositor and the
Trustee, upon reasonable notice, during normal business hours, access to all
records maintained by the Master Servicer in respect of the Master Servicer's
rights and obligations hereunder and access to officers of the Master Servicer
responsible for such obligations. Upon request, the Master Servicer shall
furnish to the Depositor and the Trustee the most recent financial statements of
its parent and such other information relating to the Master Servicer's capacity
to perform its obligations under this Agreement as it possesses. To the extent
such information is not otherwise available to the public, the Depositor and the
Trustee shall not disseminate any information obtained pursuant to the preceding
two sentences without the Master Servicer's written consent, except as required

                                     - 87 -
<PAGE>

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, the Trustee or the Trust Fund, and in
any case, the Depositor 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 Master Servicer under this Agreement and may, but is not obligated to,
perform, or cause a designee to perform, any defaulted obligation of the Master
Servicer under this Agreement or exercise the rights of the Master Servicer
under this Agreement; provided that the Master 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 Master Servicer and is not
obligated to supervise the performance of the Master Servicer under this
Agreement or otherwise.

                  Section 6.7 DUTIES OF THE CREDIT RISK MANAGER.

                  For and on behalf of the Depositor, pursuant to the Credit
Risk Management Agreements the Credit Risk Manager will provide reports and
recommendations concerning certain delinquent and defaulted Loans, and as to the
collection of any Prepayment Charges with respect to the Loans. Such reports and
recommendations will be based upon information provided to the Credit Risk
Manager pursuant to the related Credit Risk Management Agreement, and the Credit
Risk Manager shall look solely to the related Servicer and/or Master Servicer
for all information and data (including loss and delinquency information and
data) relating to the servicing of the related Loans. Upon any termination of
the Credit Risk Manager or the appointment of a successor Credit Risk Manager,
the Depositor shall give written notice thereof to the Servicers, the Master
Servicer, the Trustee and each Rating Agency. Notwithstanding the foregoing, the
termination of the Credit Risk Manager pursuant to this Section shall not become
effective until the appointment of a successor Credit Risk Manager.

                  Section 6.8 LIMITATION UPON LIABILITY OF THE CREDIT RISK
MANAGER.

                  Neither the Credit Risk Manager, nor any of its directors,
officers, employees, or agents shall be under any liability to the Trustee, the
Certificateholders, or the Depositor for any action taken or for refraining from
the taking of any action made in good faith pursuant to this Agreement, in
reliance upon information provided by a Servicer under a Credit Risk Management
Agreement, or for errors in judgment; provided, however, that this provision
shall not protect the Credit Risk Manager or any such person against liability
that would otherwise be imposed by reason of willful malfeasance or bad faith in
its performance of its duties. The Credit Risk Manager and any director,
officer, employee, or agent of the Credit Risk Manager may rely in good faith on
any document of any kind prima facie properly executed and submitted by any
Person respecting any matters arising hereunder, and may rely in good faith upon
the accuracy of information furnished by a Servicer pursuant to a Credit Risk
Management Agreement in the performance of its duties thereunder and hereunder.

                                     - 88 -
<PAGE>

                  Section 6.9 REMOVAL OF THE CREDIT RISK MANAGER.

                  The Credit Risk Manager may be removed as Credit Risk Manager
by Certificateholders evidencing, in aggregate, not less than 66 2/3% of the
aggregate Percentage Interests of all Classes of Certificates, in the exercise
of its or their sole discretion. The Certificateholders shall provide written
notice of the Credit Risk Manager's removal to the Trustee. Upon receipt of such
notice, the Trustee shall provide written notice to the Credit Risk Manager of
its removal, which shall be effective upon receipt of such notice by the Credit
Risk Manager.

                                     - 89 -
<PAGE>

                                  ARTICLE VII

                                     DEFAULT

                  Section 7.1 MASTER SERVICER EVENTS OF DEFAULT.

                  "Master Servicer Event of Default," wherever used herein,
means any one of the following events:

                  (i) [Reserved];

                  (ii) any failure on the part of the Master Servicer duly to
observe or perform in any material respect any other of the covenants or
agreements on the part of the Master Servicer contained in this Agreement, or
the breach by the Master Servicer of any representation and warranty contained
in Section 2.5, which continues unremedied for a period of 30 days after the
date on which written notice of such failure, requiring the same to be remedied,
shall have been given to the Master Servicer by the Depositor or the Trustee or
to the Master Servicer, the Depositor and the Trustee by the Holders of the
related Certificates evidencing, in aggregate, not less than 25% of the
aggregate Certificate Principal Balance of the Certificates; 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 Master Servicer and such decree or order shall have remained
in force undischarged or unstayed for a period of 90 days; or

                  (iv) the Master 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

                  (v) the Master 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) any failure of the Master Servicer to make any Advance on
any Distribution Account Deposit Date required to be made from its own funds
pursuant to Section 4.7 which continues unremedied until 3:00 p.m. New York time
on the Business Day immediately following the Distribution Account Deposit Date.

                  If a Master Servicer Event of Default described in clauses
(ii) through (v) of this Section shall occur, then, and in each and every such
case, so long as such Master Servicer Event

                                     - 90 -
<PAGE>

of Default shall not have been remedied, the Depositor or the Trustee may, and
at the written direction of the Holders of Certificates evidencing, in
aggregate, not less than 51% of the aggregate Certificate Principal Balance of
the Certificates, the Trustee shall, by notice in writing to the Master Servicer
(and to the Depositor if given by the Trustee or to the Trustee if given by the
Depositor) with a copy to each Rating Agency, terminate all of the rights and
obligations of the Master Servicer (and the Securities Administrator if the
Master Servicer and the Securities Administrator are the same entity) in its
capacity as Master Servicer (and in its capacity as Securities Administrator if
the Master Servicer and the Securities Administrator are the same entity) under
this Agreement, to the extent permitted by law, and in and to the Loans and the
proceeds thereof. Except as otherwise provided in Section 7.4, if a Master
Servicer Event of Default described in clause (vi) hereof shall occur, the
Trustee shall, by notice in writing to the Master Servicer and the Depositor,
terminate all of the rights and obligations of the Master Servicer (and the
Securities Administrator if the Master Servicer and the Securities Administrator
are the same entity) in its capacity as Master Servicer under this Agreement
(and in its capacity as Securities Administrator if the Master Servicer and the
Securities Administrator are the same entity) and in and to the Loans and the
proceeds thereof. On or after the receipt by the Master Servicer of such written
notice, all authority and power of the Master Servicer (and, if applicable, the
Securities Administrator) under this Agreement, whether with respect to the
Certificates (other than as a Holder of any Certificate) or the 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 Master Servicer, (and, if applicable, the
Securities Administrator) 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 Loans and related documents, or otherwise. The
Master Servicer (and, if applicable, the Securities Administrator) agrees
promptly (and in any event no later than ten Business Days subsequent to such
notice) to provide the Trustee with all documents and records requested by it to
enable it to assume the Master Servicer's (and, if applicable, the Securities
Administrator's) functions under this Agreement, and to cooperate with the
Trustee in effecting the termination of the Master Servicer's (and, if
applicable, the Securities Administrator's) responsibilities and rights under
this Agreement (provided, however, that the Master 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 6.3,
notwithstanding any such termination, with respect to events occurring prior to
such termination). For purposes of this Section 7.1, the Trustee shall not be
deemed to have knowledge of a Master 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 Master Servicer Event of Default is received
by the Trustee and such notice references the Certificates, the Trust or this
Agreement. The Trustee shall promptly notify the Rating Agencies of the
occurrence of a Master Servicer Event of Default of which it has knowledge as
provided above.

                  Section 7.2 TRUSTEE TO ACT; APPOINTMENT OF SUCCESSOR.

                  On and after the time the Master Servicer receives a notice of
termination, the Trustee shall be the successor in all respects to the Master
Servicer (and, if applicable, the

                                     - 91 -
<PAGE>

Securities Administrator) in its capacity as Master Servicer (and, if
applicable, the Securities Administrator) 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 Master
Servicer under this Agreement, the responsibilities, duties and liabilities
contained in Section 2.3 and the obligation to deposit amounts in respect of
losses pursuant to Section 3.23(c)) by the terms and provisions hereof
including, without limitation, the Master Servicer's obligations to make
Advances no later than each Distribution Date pursuant to Section 4.7; provided,
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 4.7; and provided
further, that any failure to perform such duties or responsibilities caused by
the Master Servicer's failure to provide information required by Section 7.1
shall not be considered a default by the Trustee as successor to the Master
Servicer hereunder. As compensation therefor, the Trustee shall be entitled to
all funds relating to the Loans, investment earnings on the Distribution Account
and all other remuneration to which the Master Servicer would have been entitled
if it had continued to act hereunder. Notwithstanding the above and subject to
the immediately following paragraph, the Trustee may, 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 evidencing, in aggregate, not less than 51% of the Certificate
Principal Balance of the Certificates so request in writing promptly appoint or
petition a court of competent jurisdiction to appoint, an established mortgage
loan servicing institution acceptable to each Rating Agency and having a net
worth of not less than $15,000,000, as the successor to the Master Servicer
under this Agreement in the assumption of all or any part of the
responsibilities, duties or liabilities of the Master Servicer under this
Agreement.

                  No appointment of a successor to the Master Servicer (and, if
applicable, the Securities Administrator) under this Agreement shall be
effective until the assumption by the successor of all of the Master Servicer's
(and, if applicable, the Securities Administrator'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 Loans as it and such successor shall agree;
provided, however, that no such compensation shall be in excess of that
permitted the Master Servicer (and, if applicable, the Securities Administrator)
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 Master Servicer (and,
if applicable, the Securities Administrator) under this Agreement, the Trustee
shall act in such capacity as hereinabove provided. The transition costs and
expenses incurred by the Trustee in connection with the replacement of the
Master Servicer (and, if applicable, the Securities Administrator) shall be
reimbursed out of the Trust.

                  Section 7.3 NOTIFICATION TO CERTIFICATEHOLDERS.

                  (a) Upon any termination of the Master Servicer pursuant to
Section 7.1 or any appointment of a successor to the Master Servicer pursuant to
Section 7.2, the Trustee shall give prompt written notice thereof to the
Certificateholders at their respective addresses appearing in the Certificate
Register.

                                     - 92 -
<PAGE>

                  (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 Master 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 all Holders of Certificates notice
of each such occurrence, unless such default or Master Servicer Event of Default
shall have been cured or waived.

                  Section 7.4 WAIVER OF MASTER SERVICER EVENTS OF DEFAULT.

                  The Holders evidencing, in aggregate, not less than 66-2/3% of
the aggregate Percentage Interests of all Certificates affected by any default
or Master Servicer Event of Default hereunder may waive such default or Master
Servicer Event of Default; PROVIDED, HOWEVER, that a default or Master Servicer
Event of Default under clause (vi) of Section 7.1 may be waived only by all of
the Holders of the related Regular Interest Certificates. Upon any such waiver
of a default or Master Servicer Event of Default, such default or Master
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 Master Servicer Event of Default or impair any
right consequent thereon except to the extent expressly so waived.

                                     - 93 -
<PAGE>

                                  ARTICLE VIII

             CONCERNING THE TRUSTEE AND THE SECURITIES ADMINISTRATOR

                  Section 8.1 DUTIES OF TRUSTEE AND SECURITIES ADMINISTRATOR.

                  The Trustee, prior to the occurrence of a Master Servicer
Event of Default and after the curing or waiver of all Master Servicer Events of
Default which may have occurred, and the Securities Administrator each undertake
to perform such duties and only such duties as are specifically set forth in
this Agreement as duties of the Trustee and the Securities Administrator,
respectively. During the continuance of a Master 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 its 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.

                  Each of the Trustee and the Securities Administrator, 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 on their face to the requirements
of this Agreement. If any such instrument is found not to conform on its face to
the requirements of this Agreement, the Trustee or the Securities Administrator,
as the case may be, shall take such action as it deems appropriate to have the
instrument corrected, and if the instrument is not corrected to its
satisfaction, the Securities Administrator shall provide notice to the Trustee
thereof and the Trustee shall provide notice to the Certificateholders.

                  No provision of this Agreement shall be construed to relieve
the Trustee or the Securities Administrator 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 Master Servicer Event of
               Default, and after the curing or waiver of all such Master
               Servicer Events of Default which may have occurred with respect
               to the Trustee and at all times with respect to the Securities
               Administrator, the duties and obligations of the Trustee and the
               Securities Administrator shall be determined solely by the
               express provisions of this Agreement, neither the Trustee nor the
               Securities Administrator 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 or the
               Securities Administrator and, in the absence of bad faith on the
               part of the Trustee or the Securities Administrator,
               respectively, the Trustee or the Securities Administrator,
               respectively, 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 or the
               Securities Administrator, respectively, that conform to the
               requirements of this Agreement;

                    (ii) Neither the Trustee nor the Securities Administrator
               shall be liable for an error of judgment made in good faith by a
               Responsible Officer or

                                     - 94 -
<PAGE>

               Responsible Officers of the Trustee or an officer or officers of
               the Securities Administrator, respectively, unless it shall be
               proved that the Trustee or the Securities Administrator,
               respectively, was negligent in ascertaining the pertinent facts;
               and

                    (iii) Neither the Trustee nor the Securities Administrator
               shall be 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 Holders of Certificates evidencing, in
               aggregate, not less than 25% (or such other percentage set forth
               in this Agreement) of the aggregate Certificate Principal Balance
               of the Certificates, relating to the time, method and place of
               conducting any proceeding for any remedy available to the Trustee
               or the Securities Administrator or exercising any trust or power
               conferred upon the Trustee or the Securities Administrator under
               this Agreement.

                  Section 8.2 CERTAIN MATTERS AFFECTING TRUSTEE AND SECURITIES
ADMINISTRATOR.

                  (a) Except as otherwise provided in Section 8.1:

                  (i) The Trustee and the Securities Administrator 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 and the Securities Administrator may consult
with counsel of its selection and any advice of such counsel or 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 advice or Opinion of Counsel;

                  (iii) Neither the Trustee nor the Securities Administrator
shall 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, pursuant to the provisions of this Agreement, unless such
Certificateholders shall have offered to the Trustee or the Securities
Administrator, as the case may be, reasonable security or indemnity satisfactory
to it 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 Master 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;

                                     - 95 -
<PAGE>

                  (iv) Neither the Trustee nor the Securities Administrator
shall be 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 Master Servicer Event of
Default hereunder and after the curing or waiver of all Master Servicer Events
of Default which may have occurred with respect to the Trustee and at all times
with respect to the Securities Administrator, neither the Trustee nor the
Securities Administrator shall 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 Holders of Certificates
evidencing, in aggregate, not less than 25% of the Trust Fund; PROVIDED,
HOWEVER, that if the payment within a reasonable time to the Trustee or the
Securities Administrator 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 or the Securities Administrator, as applicable, not reasonably assured
to the Trustee or the Securities Administrator by such Certificateholders, the
Trustee or the Securities Administrator, as applicable, may require reasonable
indemnity satisfactory to it against such expense, or liability from such
Certificateholders 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 and the Trustee shall not be responsible for any misconduct
or negligence on the part of any agent or attorney appointed with due care by it
hereunder;

                  (vii) The Securities Administrator shall not be liable for any
loss resulting from the investment of funds held in the Distribution Account at
the direction of the Master Servicer pursuant to Section 3.23(c);

                  (viii) Neither the Trustee nor the Securities Administrator
shall be liable for any action taken, suffered, or omitted to be taken by it in
good faith and reasonably believed by it to be authorized or within the
discretion or rights or powers conferred upon it by this Agreement;

                  (ix) The Trustee shall not be deemed to have notice of any
default or Master Servicer Event of Default unless a Responsible Officer of the
Trustee has actual knowledge thereof or unless written notice of any event which
is in fact such a default is received by the Trustee at the Corporate Trust
Office of the Trustee, and such notice references the Certificates and this
Agreement; and

                  (x) The rights, privileges, protections, immunities and
benefits given to the Trustee, including, without limitation, its right to be
indemnified, are

                                     - 96 -
<PAGE>

extended to, and shall be enforceable by, each agent, custodian and other Person
employed to act hereunder.

                  (b) The Trustee is hereby directed by the Depositor to execute
the Cap Contract on behalf of the Trust Fund in the form presented to it by the
Depositor and shall have no responsibility for the contents of the Cap Contract,
including, without limitation, the representations and warranties contained
therein. Any funds payable by the Trustee under the Cap Contract at closing
shall be paid by the Depositor. Notwithstanding anything to the contrary
contained herein or in the Cap Contract, the Trustee shall not be required to
make any payments to the counterparty under the Cap Contract.

                  (c) 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.

                  Section 8.3 TRUSTEE AND SECURITIES ADMINISTRATOR NOT LIABLE
FOR CERTIFICATES OR LOANS.

                  The recitals contained herein and in the Certificates (other
than the signature of the Securities Administrator, the authentication of the
Securities Administrator 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 neither the
Trustee nor the Securities Administrator assumes any responsibility for their
correctness. Neither the Trustee nor the Securities Administrator makes any
representations or warranties as to the validity or sufficiency of this
Agreement (other than as specifically set forth in Section 8.12), the Cap
Contract or of the Certificates (other than the signature of the Securities
Administrator and authentication of the Securities Administrator on the
Certificates) or of any Loan or related document. 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 Master Servicer in respect
of the Loans or deposited in or withdrawn from the Distribution Account.

                  Section 8.4 TRUSTEE, MASTER SERVICER AND SECURITIES
ADMINISTRATOR MAY OWN CERTIFICATES.

                  Each of the Trustee, the Master Servicer and the Securities
Administrator in its individual capacity or any other capacity may become the
owner or pledgee of Certificates and may transact business with other interested
parties and their Affiliates with the same rights it would have if it were not
Trustee, Master Servicer or the Securities Administrator.

                  Section 8.5 FEES AND EXPENSES OF TRUSTEE AND SECURITIES
ADMINISTRATOR.

                  The fees of the Trustee and the Securities Administrator
hereunder and of Wells Fargo under the Custodial Agreement shall be paid in
accordance with a side letter agreement

                                     - 97 -
<PAGE>

with the Master Servicer and at the sole expense of the Master Servicer. In
addition, the Trustee, the Securities Administrator, the Custodian and any
director, officer, employee or agent of the Trustee, the Securities
Administrator and the Custodian shall be indemnified by the Trust and held
harmless against any loss, liability or expense (including reasonable attorney's
fees and expenses) incurred by the Trustee or the Securities Administrator in
connection with any default administration to be performed by the Trustee or the
Securities Administrator pursuant to this Agreement or other agreements related
hereto and any claim or legal action or any pending or threatened claim or legal
action arising out of or in connection with the acceptance or administration of
its respective obligations and duties under this Agreement or the Cap Contract,
including other agreements related hereto, other than any loss, liability or
expense (i) for which the Trustee is indemnified by the Master Servicer, (ii)
that constitutes a specific liability of the Trustee or the Securities
Administrator, respectively, pursuant to Section 10.1(g) or (iii) any loss,
liability or expense incurred by reason of willful misfeasance, bad faith or
gross negligence by the Trustee, or Securities Administrator in the performance
of its duties hereunder or by reason of reckless disregard of its obligations
and duties hereunder. The Master Servicer agrees to indemnify the Trustee, from,
and hold the Trustee harmless against, any loss, liability or expense (including
reasonable attorney's fees and expenses) incurred by the Trustee by reason of
the Master Servicer's willful misfeasance, bad faith or gross negligence in the
performance of its duties under this Agreement or by reason of the Master
Servicer's reckless disregard of its obligations and duties under 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 Master Servicer to the Trustee shall be from the Master Servicer's
own funds, without reimbursement from REMIC I therefor.

                  Section 8.6 ELIGIBILITY REQUIREMENTS FOR TRUSTEE AND
SECURITIES ADMINISTRATOR.

                  The Trustee and the Securities Administrator shall at all
times be a corporation or an association (other than the Depositor, the Seller,
the Master 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 or the Securities Administrator, as applicable, shall cease to be
eligible in accordance with the provisions of this Section, the Trustee or the
Securities Administrator, as applicable, shall resign immediately in the manner
and with the effect specified in Section 8.7.

         Additionally, the Securities Administrator (i) may not be an
originator, Master Servicer, Servicer, the Depositor or an affiliate of the
Depositor unless the Securities Administrator is in an institutional trust
department, (ii) must be authorized to exercise corporate trust powers under the
laws of its jurisdiction of organization, and (iii) must be rated at least
"A/F1" by Fitch, if Fitch is a Rating Agency, or the equivalent rating by S&P
(or such rating acceptable to Fitch pursuant to a rating confirmation). If no
successor securities administrator shall have been

                                     - 98 -
<PAGE>

appointed and shall have accepted appointment within 60 days after Wells Fargo
Bank, N.A., as Securities Administrator, ceases to be the securities
administrator pursuant to this Section 8.06, then the Trustee shall perform the
duties of the Securities Administrator pursuant to this Agreement. The Trustee
shall notify the Rating Agencies of any change of Securities Administrator.
Notwithstanding the above, the Trustee may, if it shall be unwilling to so act,
or shall, if it is unable to so act, promptly appoint or petition a court of
competent jurisdiction to appoint, a Person that satisfies the eligibility
criteria set forth herein as the Trustee under this Agreement in the assumption
of all or any part of the responsibilities, duties or liabilities of the Trustee
under this Agreement. Wells Fargo Bank, N.A. shall act as Securities
Administrator for so long as it is Master Servicer under this Agreement.

                  Section 8.7 RESIGNATION AND REMOVAL OF TRUSTEE AND SECURITIES
ADMINISTRATOR.

                  The Trustee and the Securities Administrator may at any time
resign (including, in the case of the Securities Administrator, in connection
with the resignation or termination of the Master Servicer) and be discharged
from the trust hereby created by giving written notice thereof to the Depositor,
to the Master Servicer, to the Securities Administrator (or the Trustee, if the
Securities Administrator resigns) and to the Certificateholders. Upon receiving
such notice of resignation, the Depositor shall promptly appoint a successor
trustee or successor securities administrator by written instrument, in
duplicate, which instrument shall be delivered to the resigning Trustee or
Securities Administrator, as applicable, and to the successor trustee or
successor securities administrator, as applicable. A copy of such instrument
shall be delivered to the Certificateholders, the Trustee, the Securities
Administrator and the Master Servicer by the Depositor. If no successor trustee
or successor securities administrator shall have been so appointed and have
accepted appointment within 30 days after the giving of such notice of
resignation, the resigning Trustee or Securities Administrator, as the case may
be, may, at the expense of the Trust Fund, petition any court of competent
jurisdiction for the appointment of a successor trustee, successor securities
administrator, Trustee or Securities Administrator, as applicable.

                  If at any time the Trustee or the Securities Administrator
shall cease to be eligible in accordance with the provisions of Section 8.6 and
shall fail to resign after written request therefor by the Depositor, or if at
any time the Trustee or the Securities Administrator shall become incapable of
acting, or shall be adjudged bankrupt or insolvent, or a receiver of the Trustee
or the Securities Administrator or of its property shall be appointed, or any
public officer shall take charge or control of the Trustee or the Securities
Administrator or of its property or affairs for the purpose of rehabilitation,
conservation or liquidation, then the Depositor may remove the Trustee or the
Securities Administrator, as applicable and appoint a successor trustee or
successor securities administrator, as applicable, by written instrument, in
duplicate, which instrument shall be delivered to the Trustee or the Securities
Administrator so removed and to the successor trustee or successor securities
administrator. A copy of such instrument shall be delivered to the
Certificateholders, the Trustee, the Securities Administrator and the Master
Servicer by the Depositor.

                  The Holders of Certificates evidencing, in aggregate, not less
than 51% of the Certificate Principal Balance of the Certificates, may at any
time remove the Trustee or the Securities Administrator and appoint a successor
trustee or successor securities administrator by

                                     - 99 -
<PAGE>

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 or the
Securities Administrator so removed and one complete set to the successor so
appointed. A copy of such instrument shall be delivered to the
Certificateholders, the Trustee (in the case of the removal of the Securities
Administrator), the Securities Administrator (in the case of the removal of the
Trustee) and the Master Servicer by the Depositor. All costs and expenses
incurred by the Trustee in connection with its removal without cause hereunder
shall be reimbursed to it by the Trust Fund.

                  Any resignation or removal of the Trustee or the Securities
Administrator and appointment of a successor trustee or successor securities
administrator pursuant to any of the provisions of this Section shall not become
effective until acceptance of appointment by the successor trustee or successor
securities administrator, as applicable, as provided in Section 8.8.

                  Notwithstanding anything to the contrary contained herein, the
Master Servicer and the Securities Administrator shall at all times be the same
Person.

                  Section 8.8 SUCCESSOR TRUSTEE OR SECURITIES ADMINISTRATOR.

                  Any successor trustee or successor securities administrator
appointed as provided in Section 8.7 shall execute, acknowledge and deliver to
the Depositor and its predecessor trustee or predecessor securities
administrator an instrument accepting such appointment hereunder, and thereupon
the resignation or removal of the predecessor trustee or predecessor securities
administrator shall become effective and such successor trustee or successor
securities administrator 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 or
securities administrator herein. The predecessor trustee or predecessor
securities administrator shall deliver to the successor trustee or successor
securities administrator all Loan Documents and related documents and statements
to the extent held by it hereunder, as well as all moneys, held by it hereunder,
and the Depositor and the predecessor trustee or predecessor securities
administrator 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 or successor securities administrator all
such rights, powers, duties and obligations.

                  No successor trustee or successor securities administrator
shall accept appointment as provided in this Section unless at the time of such
acceptance such successor trustee or successor securities administrator shall be
eligible under the provisions of Section 8.6 and the appointment of such
successor trustee or successor securities administrator 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 or
successor securities administrator as provided in this Section, the Depositor
shall mail notice of the succession of such trustee hereunder to all Holders of
the related Certificates at their addresses as shown in the Certificate
Register. If the Depositor fails to mail such notice within 10 days after
acceptance of appointment by the successor trustee or successor securities
administrator, the successor trustee

                                     - 100 -
<PAGE>
or successor securities administrator shall cause such notice to be mailed at
the expense of the Depositor.

                  Section 8.9 MERGER OR CONSOLIDATION OF TRUSTEE OR SECURITIES
ADMINISTRATOR.

                  Any corporation or association into which the Trustee or the
Securities Administrator 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 or the Securities Administrator
shall be a party, or any corporation or association succeeding to the business
of the Trustee or the Securities Administrator shall be the successor of the
Trustee or the Securities Administrator hereunder, provided such corporation or
association shall be eligible under the provisions of Section 8.6, 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 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, and for the benefit of the Holders of the Certificates, 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. No co-trustee or separate trustee hereunder
shall be required to meet the terms of eligibility as a successor trustee under
Section 8.6 hereunder and no notice to Holders of Certificates of the
appointment of co-trustee(s) or separate trustee(s) shall be required under
Section 8.8 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 Master 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

                                    - 101 -
<PAGE>

therein, subject to all the provisions 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.

                  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.

                  The Securities Administrator shall appoint an office or agency
in the City of Minneapolis located at Sixth Street and Marquette Avenue,
Minneapolis, Minnesota 55479, 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 Securities Administrator in respect of
the Certificates and this Agreement may be served.

                  Section 8.12 REPRESENTATIONS AND WARRANTIES OF THE TRUSTEE.

                  The Trustee hereby represents and warrants to the Master
Servicer, the Securities Administrator and the Depositor as applicable, 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 incorporation or bylaws
               or constitute a default (or an event which, with notice or lapse
               of time, or both, 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.

                                    - 102 -
<PAGE>

                    (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.

                                    - 103 -
<PAGE>

                                   ARTICLE IX
                                   TERMINATION

                  Section 9.1 TERMINATION UPON PURCHASE OR LIQUIDATION OF THE
LOANS.

                  (a) Subject to Section 9.2, the respective obligations and
responsibilities under this Agreement of the Depositor, the Master Servicer, the
Securities Administrator and the Trustee (other than the obligations of the
Master Servicer to the Securities Administrator and the Trustee pursuant to
Section 8.5 and of the Master Servicer to pay Compensating Interest to the
Securities Administrator and the Securities Administrator to make payments in
respect of REMIC I Regular Interests or 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 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 Loan or REO Property remaining in REMIC I; PROVIDED, HOWEVER, that in no
event shall the trust created hereby continue beyond the earlier of (a) 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 and (b) the Last Scheduled Distribution Date.
The purchase by the Master Servicer of all Mortgage Loans and each REO Property
remaining in REMIC I shall be at a price (the "Termination Price") equal to the
sum of (i) the greater of (A) the aggregate Purchase Price of all the Mortgage
Loans included in REMIC I, plus the appraised value of each REO Property, if
any, included in REMIC I, such appraisal to be conducted by an appraiser
mutually agreed upon by the Master Servicer and the Trustee in their reasonable
discretion and (B) the aggregate fair market value of all of the assets of REMIC
I (as determined by the Master Servicer 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 9.1) plus (ii) any amounts due the Servicers and the
Master Servicer in respect of unpaid Servicing Fees, Master Servicing Fees and
outstanding Monthly Advances and Servicing Advances.

                  (b) The Master Servicer shall have the right (the party
exercising such right, the "Terminator"), to purchase all of the Loans and each
REO Property remaining in REMIC I pursuant to clause (i) of the preceding
paragraph no later than the Determination Date 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 Loans
and each REO Property remaining in REMIC I pursuant to clause (i) above only if
the aggregate Scheduled Principal Balance of the Loans and each REO Property
remaining in the Trust Fund at the time of such election is less than or equal
to 10% of the aggregate Scheduled Principal Balance of the Loans as of the
Cut-Off Date.

                  (c) Notice of the liquidation of the Certificates shall be
given promptly by the Securities Administrator by letter to the
Certificateholders mailed (a) in the event such notice is given in connection
with the purchase of the Loans and each REO Property by the Terminator, not
earlier than the 15th day and not later than the 25th day of the month next
preceding the month of the final distribution on the Certificates or (b)
otherwise during the month

                                    - 104 -
<PAGE>

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 REMIC I Regular Interests or the
Certificates will be made upon presentation and surrender of the related
Certificates at the office of the Securities Administrator therein designated,
(ii) the amount of any such final payment, (iii) that no interest shall accrue
in respect of REMIC I Regular Interests or Certificates from and after the
Interest 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 Securities Administrator. In the event such
notice is given in connection with the purchase of all of the Loans and each REO
Property remaining in the REMIC I by the Terminator, the Terminator shall
deliver to the Securities Administrator 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 above-described Termination Price. The Securities
Administrator shall remit (a) to the Master Servicer from such funds deposited
in the Distribution Account (i) any amounts which the Master Servicer notifies
it in writing that the Master Servicer would be permitted to withdraw and retain
from the Distribution Account pursuant to Section 3.24 and (ii) any other
amounts otherwise payable by the Securities Administrator to the Master Servicer
from amounts on deposit in the Distribution Account pursuant to the terms of
this Agreement and notified by the Master Servicer in writing and (b) to the
Servicers, any amounts reimbursable to the Servicers pursuant to the Servicing
Agreements, in each case prior to making any final distributions pursuant to
Section 9.1(d) below. Upon certification to the Trustee and the Securities
Administrator by a Servicing Officer of the making of such final deposit, the
Trustee shall promptly release to the Terminator the Mortgage Files for the
remaining Loans, and the Trustee shall execute all assignments, endorsements and
other instruments necessary to effectuate such transfer in each case without
recourse, representation or warranty.

                  (d) Upon presentation of the Certificates by the
Certificateholders on the final Distribution Date, the Securities Administrator
shall distribute to each Certificateholder so presenting and surrendering its
Certificates the amount otherwise distributable on such Distribution Date in
accordance with Section 4.1 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
Holders. If any Certificates as to which notice has been given pursuant to this
Section 9.1 shall not have been surrendered for cancellation within six months
after the time specified in such notice, the Securities Administrator 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 Securities
Administrator 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 funds. If within one year after the final notice any such Certificates
shall not have been surrendered for cancellation, the Securities Administrator
shall pay to the Depositor 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

                                    - 105 -
<PAGE>

by the Securities Administrator as a result of such Certificateholder's failure
to surrender its Certificate(s) for final payment thereof in accordance with
this Section 9.1. Any such amounts held in trust by the Securities Administrator
shall be held in an Eligible Account and the Securities Administrator may direct
any depository institution maintaining such account to invest the funds in one
or more Eligible Investments. All income and gain realized from the investment
of funds deposited in such accounts held in trust by the Securities
Administrator shall be for the benefit of the Securities Administrator;
PROVIDED, HOWEVER, that the Securities Administrator shall deposit in such
account the amount of any loss of principal incurred in respect of any such
Eligible 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 9.2 ADDITIONAL TERMINATION REQUIREMENTS.

                  (a) In the event that the Terminator purchases all the Loans
and each REO Property or the final payment on or other liquidation of the last
Loan or REO Property remaining in REMIC I pursuant to Section 9.1, the Trust
Fund shall be terminated in accordance with the following additional
requirements:

                    (i) The Securities Administrator shall specify the first day
               in the 90-day liquidation period in a statement attached to each
               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 by and
               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 Securities Administrator 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 Securities Administrator 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.

                  (b) At the expense of the requesting Terminator (or, if the
Trust Fund is being terminated as a result of the occurrence of the event
described in clause (ii) of the first paragraph of Section 9.1, at the expense
of the Trust Fund), the Terminator shall prepare or cause to be prepared the
documentation required in connection with the adoption of a plan of liquidation
of each REMIC pursuant to this Section 9.2.

                  (c) By their acceptance of Certificates, the Holders thereof
hereby agree to authorize the Securities Administrator to specify the 90-day
liquidation period for each REMIC, which authorization shall be binding upon all
successor Certificateholders.

                                    - 106 -
<PAGE>

                                   ARTICLE X
                                REMIC PROVISIONS

                  Section 10.1 REMIC ADMINISTRATION.

                  (a) The Trustee shall elect to treat each REMIC as a REMIC
under the Code and, if necessary, under applicable state law and as instructed
by the Securities Administrator. Each such election shall be made by the
Securities Administrator 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 Component
R-1 shall be designated as the Residual Interest in REMIC I. For the purposes of
the REMIC election in respect of REMIC II, the REMIC II Regular Interests shall
be designated as the Regular Interests in REMIC II and Component R-2 shall be
designated as the Residual Interest in REMIC II. The Class I-A-1, Class I-A-2,
Class I-A-3, Class I-A-4, Class II-A-1, Class M, Class B-1, Class B-2, Class
B-3, Class B-4 and Class B-5 Certificates shall be designated as the Regular
Interests in REMIC III and Component R-3 shall be designated as the Residual
Interest in REMIC III. The Trustee shall not permit the creation of any
"interests" in each Trust REMIC (within the meaning of Section 860G of the Code)
other than the REMIC I Regular Interests, the REMIC II Regular Interests and the
interests represented by the Certificates.

                  (b) The Closing Date is hereby designated as the "Startup Day"
of each REMIC created hereunder within the meaning of Section 860G(a)(9) of the
Code.

                  (c) The Securities Administrator 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 each 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 Securities Administrator, as agent for
each REMIC's tax matters person shall (i) act on behalf of the Trust Fund in
relation to any tax matter or controversy involving any 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 each Class of 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
Securities Administrator or an Affiliate as its agent to perform all of the
duties of the tax matters person for the Trust Fund.

                  (d) The Securities Administrator shall prepare and file and
the Trustee shall sign all of the Tax Returns in respect of each REMIC created
hereunder. The expenses of preparing and filing such returns shall be borne by
the Securities Administrator without any right of reimbursement therefor.

                                    - 107 -
<PAGE>

                  (e) The Securities Administrator shall perform on behalf of
each 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 Securities Administrator 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 upon receipt of
additional reasonable compensation, (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 shall serve as the representative of each REMIC. The Depositor
shall provide or cause to be provided to the Securities Administrator, within
ten (10) days after the Closing Date, all information or data that the
Securities Administrator 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) To the extent in the control of the Trustee or the
Securities Administrator, each such Person (i) shall take such action and shall
cause each REMIC created hereunder to take such action as shall be necessary to
create or maintain the status thereof as a REMIC under the REMIC Provisions,
(ii) shall not take any action, 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 (A) endanger the
status of each REMIC as a REMIC or (B) 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 such action or inaction is permitted under this Agreement
or the Trustee and the Securities Administrator have received an Opinion of
Counsel, addressed to them (at the expense of the party seeking to take such
action but in no event at the expense of the Trustee or the Securities
Administrator) to the effect that the contemplated action will not, with respect
to any REMIC, endanger such status or result in the imposition of such a tax,
nor (iii) shall the Securities Administrator take or fail to take any action
(whether or not authorized hereunder) as to which the Trustee 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
Securities Administrator 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 REMIC or the respective assets of each, or causing any REMIC to take any
action, which is not contemplated under the terms of this Agreement, the
Securities Administrator shall consult with the Trustee or its designee, in
writing, with respect to whether such action could cause an Adverse REMIC Event
to occur with respect to any REMIC, and the Securities Administrator shall not
take any such action or cause any REMIC to take any such action as to which the
Trustee has advised it in writing that an Adverse REMIC Event could occur. The
Trustee 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.

                                    - 108 -
<PAGE>

                  (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 10.3 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 Securities Administrator pursuant
to Section 10.3 hereof, if such tax arises out of or results from a breach by
the Securities Administrator of any of its obligations under this Article X,
(iii) to the Master Servicer pursuant to Section 10.3 hereof, if such tax arises
out of or results from a breach by the Master Servicer of any of its obligations
under Article III or under this Article X, or (iv) against amounts on deposit in
the Distribution Account and shall be paid by withdrawal therefrom.

                  (h) The Trustee and the Securities Administrator shall, for
federal income tax purposes, maintain books and records with respect to each
REMIC on a calendar year and on an accrual basis.

                  (i) Following the Startup Day, the Trustee shall not accept
any contributions of assets to any REMIC other than in connection with any
Substitute Loan delivered in accordance with Section 2.3 unless it shall have
received an Opinion of Counsel addressed to it 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.

                  (j) Neither the Trustee nor the Securities Administrator shall
knowingly enter into any arrangement by which any REMIC will receive a fee or
other compensation for services nor permit any 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.

                  (k) The Securities Administrator shall apply for an employer
identification number with the Internal Revenue Service via a Form SS-4 or other
comparable method for each REMIC. In connection with the foregoing, the
Securities Administrator shall provide the name and address of the person who
can be contacted to obtain information required to be reported to the holders of
Regular Interests in each REMIC as required by IRS Form 8811.

                  Section 10.2 PROHIBITED TRANSACTIONS AND ACTIVITIES.

                  None of the Depositor, the Securities Administrator, the
Master Servicer or the Trustee shall sell, dispose of or substitute for any of
the Loans (except in connection with (i) the foreclosure of a 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 Loans
pursuant to Article II of this Agreement), nor acquire any assets for any REMIC
(other than REO Property acquired in respect of a

                                    - 109 -
<PAGE>

defaulted Loan), nor sell or dispose of any investments in the related
Distribution Account for gain, nor accept any contributions to any REMIC after
the Closing Date (other than a Substitute Loan delivered in accordance with
Section 2.3), unless it has received an Opinion of Counsel, addressed to the
Trustee (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 REMIC as a REMIC or (b) cause
any REMIC to be subject to a tax on "prohibited transactions" or "contributions"
pursuant to the REMIC Provisions.

                  Section 10.3 INDEMNIFICATION.

                  (a) The Trustee agrees to be liable for any taxes and costs
incurred by the Trust Fund, the Depositor, the Securities Administrator or the
Master Servicer including, without limitation, any reasonable attorneys fees
imposed on or incurred by the Trust Fund, the Depositor, the Securities
Administrator or the Master Servicer as a result of the Trustee's failure to
perform its covenants set forth in this Article X in accordance with the
standard of care of the Trustee set forth in this Agreement.

                  (b) The Master Servicer agrees to indemnify the Trust Fund,
the Depositor and the Trustee for any taxes and costs including, without
limitation, any reasonable attorneys' fees imposed on or incurred by the Trust
Fund, the Depositor or the Trustee, as a result of the Master Servicer's failure
to perform its covenants set forth in Article III in accordance with the
standard of care of the Master Servicer set forth in this Agreement.

                  (c) The Securities Administrator agrees to be liable for any
taxes and costs incurred by the Trust Fund, the Depositor or the Trustee
including, without limitation, any reasonable attorneys fees imposed on or
incurred by the Trust Fund, the Depositor or the Trustee as a result of the
Securities Administrator's failure to perform its covenants set forth in this
Article X in accordance with the standard of care of the Securities
Administrator set forth in this Agreement.

                                    - 110 -
<PAGE>

                                   ARTICLE XI

                            MISCELLANEOUS PROVISIONS

                  Section 11.1 AMENDMENT. This Agreement may be amended from
time to time by the Depositor, the Master Servicer, the Securities Administrator
and the Trustee, without the consent of any of the Certificateholders, (a) to
cure any ambiguity, to correct or supplement any provision herein which may be
inconsistent with any other provision herein, or to make any other provisions
with respect to matters or questions arising under this Agreement, (b) to
modify, eliminate or add to any provisions to such extent as shall be necessary
to maintain the qualification of the Trust Fund as two REMICs at all times that
any Certificates are outstanding, provided, that such action shall not, as
evidenced by an Opinion of Counsel addressed and delivered to the Trustee,
adversely affect in any material respect the interests of any Certificateholder.
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 Master Servicer, the Securities Administrator and the Trustee
with the consent of the Holders of Certificates evidencing, in aggregate, not
less than 66-2/3% of the Trust Fund for the purpose of adding any provisions 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 (a) reduce in any manner the amount of, or
delay the timing of, payments received on Loans which are required to be
distributed in respect of any Certificate without the consent of the Holder of
such Certificate; (b) adversely affect in any material respect the interest of
the Holders of the Senior Certificates (other than the Class R Certificates) in
a manner other than as described in (a) above without the consent of the Holders
of such Senior Certificates (other than the Class R Certificates) aggregating
not less than 66-2/3% of the aggregate Percentage Interest evidenced by all
Senior Certificates (other than the Class R Certificates); (c) adversely affect
in any material respect the interest of the Holders of the Subordinate
Certificates in a manner other than as described in clause (a) above without the
consent of the Holders of Subordinate Certificates aggregating not less than
66-2/3% of the aggregate Percentage Interest evidenced by all Subordinate
Certificates; (d) adversely affect in any material respect the interest of the
Class R Certificateholder without the consent of the Holder of the Class R
Certificates; (e) change in any material respect the rights and obligations of
the Master Servicer or successor Master Servicer under this Agreement without
the prior written consent of such party; or (f) reduce the aforesaid percentage
of the Certificates the Holders of which are required to consent to any such
amendments without the consent of the Holders of all Certificates then
outstanding; provided, that for the purposes of this Agreement, the Holder of
the Class R Certificate shall have no right to vote at all times that any Senior
Certificates (other than the Class R Certificates), or Subordinate Certificates
are outstanding if such amendment relates to the modification, elimination or
addition of any provision necessary to maintain the qualification of the Trust
Fund as three REMICs. Without limiting the generality of the foregoing, any
amendment to this Agreement required in connection with the compliance with or
the clarification of any reporting obligations described in Section 3.18 hereof
shall not require the consent of any Certificateholder or any Opinion of Counsel
or Rating Agency confirmation.

                                    - 111 -
<PAGE>

                  Notwithstanding any contrary provision of this Agreement, the
Trustee shall not consent to any amendment to this Agreement unless it shall
have first received an Opinion of Counsel addressed to it to the effect that
such amendment will not cause any of REMIC I, REMIC II or REMIC III of the Trust
Fund to fail to qualify as a REMIC at any time that any REMIC Regular Interests
or Regular Interest Certificates are outstanding.

                  As soon as practicable after the execution of any such
amendment, the Trustee shall furnish written notification of the substance of
such amendment to each Certificateholder and Rating Agency.

                  It shall not be necessary for the consent of the
Certificateholders under this Section 11.1 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.

                  Prior to the execution of any amendment to this Agreement, the
Trustee shall be entitled to receive and rely upon an Opinion of Counsel
addressed to it stating that the execution of such amendment is authorized or
permitted by this Agreement. The Trustee may, but shall not be obligated to,
enter into any such amendment which affects the Trustee's own rights, duties or
immunities under this Agreement.

                  Section 11.2 RECORDATION OF AGREEMENT; COUNTERPARTS. To the
extent permitted by applicable law, this Agreement (or an abstract hereof, if
acceptable by the applicable recording office) 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 Depositor at the expense of
the Certificateholders, but only after the Depositor has delivered to the
Trustee 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 11.3 LIMITATION ON RIGHTS OF CERTIFICATEHOLDERS. The
death or incapacity of any Certificateholder shall not operate to terminate this
Agreement or the Trust Fund, nor entitle such Certificateholder's legal
representatives or heirs to claim an accounting or 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.

                  Except as otherwise expressly provided herein no
Certificateholder, solely by virtue of its status as Certificateholder, shall
have any right to vote or in any manner otherwise control the operation and
management of the Trust Fund, or the obligations of the parties hereto, nor
shall anything herein set forth, or contained in the terms of the Certificates,
be construed so

                                    - 112 -
<PAGE>

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.

                  No Certificateholder, solely by virtue of its status as
Certificateholder, shall have any right by virtue or by availing 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 all of the
Holders of Certificates evidencing, in aggregate, not less than 25% of the Trust
Fund 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
60 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
being understood and intended, and being 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 whatever
by virtue or by availing 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 benefit of all Certificateholders. For the protection and
enforcement of the provisions of this Section 11.3, each and every
Certificateholder and the Trustee shall be entitled to such relief as can be
given either at law or in equity.

                  Section 11.4 GOVERNING LAW. THIS AGREEMENT SHALL BE CONSTRUED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD TO
CONFLICTS OF LAWS PRINCIPLES OTHER THAN 5-1401 OF THE GENERAL OBLIGATIONS LAW),
AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER SHALL BE
DETERMINED IN ACCORDANCE WITH SUCH LAWS.

                  Section 11.5 NOTICES. All demands, notices and communications
hereunder shall be in writing and shall be deemed to have been duly given if
personally delivered at or mailed by certified or registered mail, return
receipt requested (a) in the case of the Depositor, to 60 Wall Street, New York,
New York 10005, Attention: Deutsche Alt-A Securities, Inc., Mortgage Loan Trust,
Series 2005-1, (telecopy number:(212) 250-2500, or such other address or
telecopy number as may hereafter be furnished to the Master Servicer and the
Trustee in writing by the Depositor, (b) in the case of the Master Servicer and
the Securities Administrator, P.O. Box 98, Columbia, Maryland 21046 and for
overnight delivery to 9062 Old Annapolis Road, Columbia, Maryland 21045,
Attention: Deutsche Alt-A Securities, Inc., 2005-1 (telecopy number: (410)
715-2380), or such other address or telecopy number as may hereafter be
furnished to the Trustee and the Depositor in writing by the Master Servicer or
the Securities Administrator, and (c) in the case of the Trustee, at the
Corporate Trust Office or such other address or telecopy number as the Trustee
may hereafter furnish to the Master Servicer and the Depositor in writing by the
Trustee. 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

                                    - 113 -
<PAGE>

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 11.6 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 11.7 NOTICE TO RATING AGENCIES.

                  The Trustee shall use its best efforts promptly to provide
notice to the Rating Agencies 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 Master Servicer Event of Default
                         that has not been cured or waived;

                    3.   The resignation or termination of the Master Servicer
                         or the Trustee;

                    4.   The repurchase or substitution of Loans pursuant to or
                         as contemplated by Section 2.3;

                    5.   The final payment to the Holders of any Class of
                         Certificates;

                    6.   Any change in the location of the Distribution Account;
                         and

                    7.   Any event that would result in the inability of the
                         Trustee to make advances regarding delinquent Loans
                         pursuant to Section 7.2.

                  The Master Servicer shall make available to each Rating Agency
copies of the following:

                    1.   Each annual statement as to compliance described in
                         Section 3.16; and

                    2.   Each annual independent public accountants' servicing
                         report described in Section 3.17.

                  Any such notice pursuant to this Section 11.7 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 Fitch, Inc., 1 State Street Plaza, New York, New York 10004 and to Moody's
Investors Service, Inc., 99 Church Street, New York, New York 10007 or such
other addresses as the Rating Agencies may designate in writing to the parties
hereto.

                                    - 114 -
<PAGE>

                  Section 11.8 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 11.9 GRANT OF SECURITY INTEREST.

                  It is the express intent of the parties hereto that the
conveyance of the Loans by the Depositor to the Trustee, on behalf of the Trust
Fund and for the benefit of the Certificateholders, be, and be construed as, a
sale of the Loans by the Depositor and not a pledge of the Loans to secure a
debt or other obligation of the Depositor. However, in the event that,
notwithstanding the aforementioned intent of the parties, the 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 Loans by the Depositor to the
Trustee, on behalf of the Trust Fund and for the benefit of the related
Certificateholders, 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 2.1 hereof shall be deemed to be a grant by the Depositor to the
Trustee, on behalf of the Trust Fund and for the benefit of the related
Certificateholders, of a security interest in all of the Depositor's right,
title and interest in and to the Loans and all amounts payable to the holders of
the 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 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
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, on
behalf of the Trust Fund and for the benefit of the Certificateholders, a
security interest in the 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 parties hereto intend the
conveyance pursuant to Section 2.1 to be a true, absolute and unconditional sale
of the Loans and assets constituting the Trust Fund by the Depositor to the
Trustee, on behalf of the Trust Fund and for the benefit of the
Certificateholders.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

<PAGE>

                  IN WITNESS WHEREOF, the Depositor, the Master Servicer, the
Securities Administrator and the Trustee have caused their names to be signed
hereto by their respective officers thereunto duly authorized, all as of the day
and year first above written.

                                DEUTSCHE ALT-A SECURITIES, INC., as Depositor

                                By /s/ Joy Margolies
                                   -----------------------------------------
                                Name:  Joy Margolies
                                Its:   Authorized Signatory

                                By /s/ Susan Valenti
                                   -----------------------------------------
                                Name:  Susan Valenti
                                Its:   Vice President

                                WELLS FARGO BANK, NATIONAL ASSOCIATION
                                as Master Servicer and Securities Administrator

                                By /s/ Stacey Taylor
                                   -----------------------------------------
                                Name:  Stacey Taylor
                                Its:   Assistant Vice President

                                HSBC BANK USA, NATIONAL ASSOCIATION,
                                not in its individual capacity but solely
                                as Trustee

                                By /s/ Susie Moy
                                   -----------------------------------------
                                Name:  Susie Moy
                                Its:   Vice President

<PAGE>

With Respect to Sections 6.7, 6.8 and 6.9:

THE MURRAYHILL COMPANY

By: /s/ Kevin J. Kanouff
   -----------------------------------------
Name:   Kevin J. Kanouff
Title:  President and General Counsel

<PAGE>

STATE OF             )
                     ) ss.:
COUNTY OF            )

                  On the ___ day of January 2005, before me, a notary public in
and for said State, personally appeared _____________________ known to me to be
a _____________________ of Deutsche Alt-A Securities, 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]

<PAGE>

STATE OF              )
                      ) ss.:
COUNTY OF             )

                  On the ___ day of January 2005, before me, a notary public in
and for said State, personally appeared _____________________ known to me to be
a _____________________ of Deutsche Alt-A Securities, 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]

<PAGE>

STATE OF           )
                   ) ss.:
COUNTY OF          )

                  On the __ day of January 2005, before me, a notary public in
and for said State, personally appeared ___________________________ known to me
to be a ____________________ of Wells Fargo 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]

<PAGE>

STATE OF            )
                    ) ss.:
COUNTY OF           )

                  On the ___ day of January 2005, before me, a notary public in
and for said State, personally appeared _______________ known to me to be a
_______________ of HSBC Bank USA, 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]

<PAGE>
                                    EXHIBIT A-1

                     FORM OF CLASS I-A-[1][3][4] 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").

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY TO THE DEPOSITOR OR ITS AGENT FOR
         REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE
         ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS
         REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
         COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR
         OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
         SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

         THE CERTIFICATE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DECREASED
         BY THE PRINCIPAL PAYMENTS HEREON AND REALIZED LOSSES ALLOCABLE HERETO
         AS DESCRIBED IN THE AGREEMENT REFERRED TO HEREIN. ACCORDINGLY,
         FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE CERTIFICATE
         PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE
         DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY
         ASCERTAIN ITS CERTIFICATE PRINCIPAL BALANCE BY INQUIRY OF THE
         SECURITIES ADMINISTRATOR NAMED HEREIN.

<PAGE>

<TABLE>
<CAPTION>
<S>                                                           <C>
DBALT Series 2005-1, Class I-A-[1][3][4]                      Aggregate Certificate Principal Balance of the
                                                              I-A-[1][3][4] Certificates as of the Issue Date:   $

Pass-Through Rate: Floating                                   Denomination:  $

Date of Pooling and Servicing Agreement and Cut-off Date:     Master Servicer: Wells Fargo Bank, N.A.
January 1, 2005

First Distribution Date: February 25, 2005                    Trustee: HSBC Bank USA, National Association

No.__                                                         Issue Date: January 31, 2005

                                                              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.

       DEUTSCHE ALT-A SECURITIES, INC. MORTGAGE LOAN TRUST, SERIES 2005-1
                      ASSET BACKED PASS-THROUGH CERTIFICATE

evidencing a fractional undivided interest in the distributions allocable to the
Class I-A [1][3][4] Certificates with respect to a trust fund consisting
primarily of a pool of conventional one- to four-family fixed rate mortgage
loans (the "Mortgage Loans") secured by one- to four- family residences, units
in planned unit developments and individual condominium units (the "Trust Fund")
sold by DEUTSCHE ALT-A SECURITIES, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         DEUTSCHE ALT-A SECURITIES, INC., THE MASTER SERVICER, THE SECURITIES
         ADMINISTRATOR, THE TRUSTEE, ANY SERVICER 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
the Percentage Interest evidenced hereby in the beneficial ownership interest of
Certificates of the same Class as this Certificate in certain assets of the
Trust Fund generally consisting of the Mortgage Loans and related assets sold by
Deutsche Alt-A Securities, Inc. (the "Depositor"). This Certificate is primarily
backed by the Group I Mortgage Loans sold by DB Structured Products, Inc. to the
Depositor. Wells Fargo Bank, N.A. will act as master servicer of the Group I
Loans (the "Master Servicer," which term includes any successors thereto under
the Agreement referred to below). The Trust Fund was created pursuant to the
Pooling and Servicing Agreement dated as of the Cut-Off Date specified above
(the "Agreement"), among the Depositor, Wells Fargo Bank, N.A.,

                                     A-1-2
<PAGE>

as Master Servicer and securities administrator (the "Securities Administrator")
and HSBC Bank USA, National Association as trustee (the "Trustee"), a summary of
certain of the pertinent provisions of which is set forth hereafter. To the
extent not defined herein, capitalized terms used herein shall have the meaning
ascribed to them 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 its 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 such 25th day (a "Distribution Date"),
commencing on the First Distribution Date specified above, to the Person in
whose name this Certificate is registered on the Business Day immediately
preceding such Distribution Date (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 I-A-[1][3][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 Securities Administrator by
wire transfer in immediately available funds to the account of the Person
entitled thereto if such Person shall have so notified the Securities
Administrator 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
I-A-[1][3][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 Securities
Administrator of the pendency of such distribution and only upon presentation
and surrender of this Certificate at the office or agency appointed by the
Securities Administrator for that purpose as provided in the Agreement.

                  The Pass-Through Rate with respect to the first Distribution
Date is equal to 3.00% per annum and with respect to any Distribution date
thereafter shall be a rate per annum equal to the lesser of (a) One-Month LIBOR
plus 0.50% per annum and (b) the weighted average of the Net Mortgage Rates of
the Group I Mortgage Loans for that Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificate 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 and payments received
pursuant to the Cap Contract, 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.

                                     A-1-3
<PAGE>

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Master Servicer, the Trustee, the Securities
Administrator and the rights of the Certificateholders under the Agreement at
any time by the Depositor, the Master Servicer, the Trustee and the Securities
Administrator with the consent of the Holders of Certificates evidencing, in the
aggregate, not less than 66-2/3% of the Trust Fund. 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 Securities Administrator
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 Securities Administrator 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 Securities Administrator 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 Master Servicer, the Trustee, the
Securities Administrator and any agent of the Depositor, the Master Servicer,
the Trustee or the Securities Administrator may treat the Person in whose name
this Certificate is registered as the owner hereof for all purposes, and none of
the Depositor, the Master Servicer, the Trustee or the Securities Administrator
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 Securities Administrator 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 remaining in the Trust Fund and (ii) the purchase by the party designated
in the Agreement at a price determined as provided in the Agreement 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 all the Mortgage Loans and all

                                     A-1-4
<PAGE>

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 or equal to 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 neither the Trustee nor the Securities Administrator assumes
any responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Securities Administrator, by manual signature, this Certificate
shall not be entitled to any benefit under the Agreement or be valid for any
purpose.

                                     A-1-5
<PAGE>

                  IN WITNESS WHEREOF, the Securities Administrator has caused
this Certificate to be duly executed.

Dated:
                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION

                  This is one of the Class I-A-[1][3][4] Certificates referred
to in the within-mentioned Agreement.

                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                      Authorized Officer

<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
                                                                --------------
                                                                (Cust) (Minor)
                                                             under Uniform Gifts
                                                                 to Minors Act
TEN ENT - as tenants by the entireties                         ________________
                                                                    (State)
JT TEN  - as joint tenants with right
          if survivorship and not as
          tenants in common

     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 Asset Backed
Pass-Through Certificate 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 or the Securities
Administrator 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 I-A-2 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").

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY TO THE DEPOSITOR OR ITS AGENT FOR
         REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE
         ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS
         REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
         COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR
         OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
         SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

<PAGE>

<TABLE>
<CAPTION>
<S>                                                           <C>
DBALT Series 2005-1, Class I-A-2                              Initial Notional Amount of the
                                                              I-A-2 Certificates as of the Issue
                                                              Date:

Pass-Through Rate: Variable                                   Master Servicer: Wells Fargo Bank, N.A.

Date of Pooling and Servicing Agreement and Cut-off Date:     Trustee: HSBC Bank USA, National Association
January 1, 2005

First Distribution Date: February 25, 2005                    Issue Date: January 31, 2005

No.__                                                         CUSIP:________________
</TABLE>

       DEUTSCHE ALT-A SECURITIES, INC. MORTGAGE LOAN TRUST, SERIES 2005-1
                      ASSET BACKED PASS-THROUGH CERTIFICATE

evidencing a fractional undivided interest in the distributions allocable to the
Class I-A 2 Certificates with respect to a trust fund consisting primarily of a
pool of conventional one- to four-family fixed rate mortgage loans (the
"Mortgage Loans") secured by one- to four- family residences, units in planned
unit developments and individual condominium units (the "Trust Fund") sold by
DEUTSCHE ALT-A SECURITIES, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         DEUTSCHE ALT-A SECURITIES, INC., THE MASTER SERVICER, THE SECURITIES
         ADMINISTRATOR, THE TRUSTEE, ANY SERVICER 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
the Percentage Interest evidenced hereby in the beneficial ownership interest of
Certificates of the same Class as this Certificate in certain assets of the
Trust Fund generally consisting of the Mortgage Loans and related assets sold by
Deutsche Alt-A Securities, Inc. (the "Depositor"). The Mortgage Loans were sold
by DB Structured Products, Inc. to the Depositor. Wells Fargo Bank, N.A. will
act as master servicer of the Mortgage Loans (the "Master Servicer," which term
includes any successors thereto under the Agreement referred to below). The
Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as
of the Cut-Off Date specified above (the "Agreement"), among the Depositor,
Wells Fargo Bank, N.A., as Master Servicer and securities administrator (the
"Securities Administrator") and HSBC Bank USA, National Association as trustee
(the "Trustee"), a summary of certain of the pertinent provisions of which is
set forth hereafter. To the extent not defined herein, capitalized terms used
herein shall have the meaning ascribed to them 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 its acceptance hereof assents and by which such Holder is bound.

                                     A-2-2
<PAGE>

                  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 such 25th day (a "Distribution Date"),
commencing on the First Distribution Date specified above, to the Person in
whose name this Certificate is registered on the Business Day immediately
preceding such Distribution Date (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 I-A-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 Securities Administrator by
wire transfer in immediately available funds to the account of the Person
entitled thereto if such Person shall have so notified the Securities
Administrator in writing at least five Business Days prior to the Record Date
immediately prior to such Distribution Date, 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
Securities Administrator of the pendency of such distribution and only upon
presentation and surrender of this Certificate at the office or agency appointed
by the Securities Administrator for that purpose as provided in the Agreement.

                  The Pass-Through Rate with respect to the first Distribution
Date shall be equal to 2.7356% per annum, and with respect to any Distribution
Date thereafter shall be a rate per annum, expressed as a fraction, the
numerator of which is equal to the sum of (i) the product of (x) the excess of
the weighted average of the Net Mortgage Rates of the Group I Mortgage Loans
over the lesser of (a) One-Month LIBOR plus 0.50% per annum and (b) the weighted
average of the Net Mortgage Rates of the Group I Mortgage Loans for that
Distribution Date and (y) the aggregate Certificate Principal Balance of the
Group I Senior Certificates (other than the Class I-A-2 Certificates) and (ii)
the product of (x) the excess of the weighted average of the Net Mortgage Rates
of the Group I Mortgage Loans and the Group II Mortgage Loans (weighted on the
basis of the results of subtracting from the aggregate principal balance of each
loan group the current aggregate certificate principal balance of the related
Senior Certificates (other than the Class I-A-2 Certificates)), over the rate at
which the Subordinate Certificates accrue interest and (y) the aggregate
Certificate Principal Balance of the Subordinate Certificates, and the
denominator of which is equal to the notional amount of the Class I-A-2
Certificates.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificate of the Series
specified on the face hereof (herein called the "Certificates"). The
Certificates, in the aggregate, evidence the entire beneficial ownership
interest in the Trust Fund formed pursuant to the Agreement.

                  The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans 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.

                                     A-2-3
<PAGE>

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Master Servicer, the Trustee, the Securities
Administrator and the rights of the Certificateholders under the Agreement at
any time by the Depositor, the Master Servicer, the Trustee and the Securities
Administrator with the consent of the Holders of Certificates evidencing, in the
aggregate, not less than 66-2/3% of the Trust Fund. 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 Securities Administrator
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 Securities Administrator 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 Securities Administrator 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 Master Servicer, the Trustee, the
Securities Administrator and any agent of the Depositor, the Master Servicer,
the Trustee or the Securities Administrator may treat the Person in whose name
this Certificate is registered as the owner hereof for all purposes, and none of
the Depositor, the Master Servicer, the Trustee or the Securities Administrator
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 Securities Administrator 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 remaining in the Trust Fund and (ii) the purchase by the party designated
in the Agreement at a price determined as provided in the Agreement 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 all the Mortgage Loans and all

                                     A-2-4
<PAGE>

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 or equal to 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 neither the Trustee nor the Securities Administrator assumes
any responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Securities Administrator, 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 Securities Administrator has caused
this Certificate to be duly executed.

Dated:
                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION

                  This is one of the Class I-A-2 Certificates referred to in the
within-mentioned Agreement.

                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                      Authorized Officer

<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
                                                                --------------
                                                                (Cust) (Minor)
                                                             under Uniform Gifts
                                                                 to Minors Act
TEN ENT - as tenants by the entireties                         ________________
                                                                    (State)
JT TEN  - as joint tenants with right
          if survivorship and not as
          tenants in common

     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 Asset Backed
Pass-Through Certificate 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 or the Securities
Administrator 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 II-A-1 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").

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY TO THE DEPOSITOR OR ITS AGENT FOR
         REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE
         ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS
         REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
         COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR
         OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
         SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

         THE CERTIFICATE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DECREASED
         BY THE PRINCIPAL PAYMENTS HEREON AND REALIZED LOSSES ALLOCABLE HERETO
         AS DESCRIBED IN THE AGREEMENT REFERRED TO HEREIN. ACCORDINGLY,
         FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE CERTIFICATE
         PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE
         DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY
         ASCERTAIN ITS CERTIFICATE PRINCIPAL BALANCE BY INQUIRY OF THE
         SECURITIES ADMINISTRATOR NAMED HEREIN.

                                     A-3-1
<PAGE>

<TABLE>
<CAPTION>
<S>                                                           <C>
DBALT Series 2005-1, Class II-A-1                             Aggregate Certificate Principal Balance
                                                              of the II-A-1 Certificates as of
                                                              the Issue Date: $

Pass-Through Rate: Variable                                   Denomination:  $

Date of Pooling and Servicing Agreement and Cut-off Date:     Master Servicer: Wells Fargo Bank, N.A.
January 1, 2005

First Distribution Date: February 25, 2005                    Trustee: HSBC Bank USA, National Association

No.__                                                         Issue Date: January 31, 2005

                                                              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.

       DEUTSCHE ALT-A SECURITIES, INC. MORTGAGE LOAN TRUST, SERIES 2005-1
                      ASSET BACKED PASS-THROUGH CERTIFICATE

evidencing a fractional undivided interest in the distributions allocable to the
Class II-A-1 Certificates with respect to a trust fund consisting primarily of a
pool of conventional one- to four-family fixed rate mortgage loans (the
"Mortgage Loans") secured by one- to four- family residences, units in planned
unit developments and individual condominium units (the "Trust Fund") sold by
DEUTSCHE ALT-A SECURITIES, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         DEUTSCHE ALT-A SECURITIES, INC., THE MASTER SERVICER, THE SECURITIES
         ADMINISTRATOR, THE TRUSTEE, ANY SERVICER 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
the Percentage Interest evidenced hereby in the beneficial ownership interest of
Certificates of the same Class as this Certificate in certain assets of the
Trust Fund generally consisting of the Group II Loans and related assets sold by
Deutsche Alt-A Securities, Inc. (the "Depositor"). This Certificate i sprimarily
backed by the Group II Mortgage Loans sold by DB Structured Products, Inc. to
the Depositor. Wells Fargo Bank, N.A. will act as master servicer of the Group
II Loans (the "Master Servicer," which term includes any successors thereto
under the Agreement referred to below). The Trust Fund was created pursuant to
the Pooling and Servicing Agreement dated as of the Cut-Off Date specified above
(the "Agreement"), among the Depositor, Wells Fargo Bank,

                                     A-3-2
<PAGE>

N.A., as Master Servicer and securities administrator (the "Securities
Administrator") and HSBC Bank USA, National Association as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereafter. To the extent not defined herein, capitalized terms used herein
shall have the meaning ascribed to them 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 its
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 such 25th day (a "Distribution Date"),
commencing on the First Distribution Date specified above, to the Person in
whose name this Certificate is registered on the last Business Day of the month
immediately preceding the month in which such Distribution Date occurs (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 II-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 Securities Administrator by
wire transfer in immediately available funds to the account of the Person
entitled thereto if such Person shall have so notified the Securities
Administrator 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
II-A-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 Securities Administrator
of the pendency of such distribution and only upon presentation and surrender of
this Certificate at the office or agency appointed by the Securities
Administrator for that purpose as provided in the Agreement.

                  The Pass-Through Rate with respect to the first Distribution
Date is equal to 5.8482% per annum and with respect to any Distribution date
thereafter shall be a rate per annum equal to the weighted average of the Net
Mortgage Rates of the Group II Loans for that Distribution Date.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificate 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 and payments received
pursuant to the Cap Contract, 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.

                                     A-3-3
<PAGE>

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Master Servicer, the Trustee, the Securities
Administrator and the rights of the Certificateholders under the Agreement at
any time by the Depositor, the Master Servicer, the Trustee and the Securities
Administrator with the consent of the Holders of Certificates evidencing, in the
aggregate, not less than 66-2/3% of the Trust Fund. 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 Securities Administrator
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 Securities Administrator 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 Securities Administrator 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 Master Servicer, the Trustee, the
Securities Administrator and any agent of the Depositor, the Master Servicer,
the Trustee or the Securities Administrator may treat the Person in whose name
this Certificate is registered as the owner hereof for all purposes, and none of
the Depositor, the Master Servicer, the Trustee or the Securities Administrator
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 Securities Administrator 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 remaining in the Trust Fund and (ii) the purchase by the party designated
in the Agreement at a price determined as provided in the Agreement 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 all the Mortgage Loans and all

                                     A-3-4
<PAGE>

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 or equal to 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 neither the Trustee nor the Securities Administrator assumes
any responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Securities Administrator, 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 Securities Administrator has caused
this Certificate to be duly executed.

Dated:
                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION

                  This is one of the Class II-A-1 Certificates referred to in
the within-mentioned Agreement.

                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                      Authorized Officer

<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
                                                                --------------
                                                                (Cust) (Minor)
                                                             under Uniform Gifts
                                                                 to Minors Act
TEN ENT - as tenants by the entireties                         ________________
                                                                    (State)
JT TEN  - as joint tenants with right
          if survivorship and not as
          tenants in common

     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 Asset Backed
Pass-Through Certificate 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 or the Securities
Administrator 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 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").

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY TO THE DEPOSITOR OR ITS AGENT FOR
         REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE
         ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS
         REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
         COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR
         OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
         SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

         THIS CERTIFICATE IS SUBORDINATE TO THE GROUP I SENIOR CERTIFICATES AND
         THE GROUP II SENIOR CERTIFICATES, TO THE EXTENT DESCRIBED IN THE
         AGREEMENT REFERRED TO HEREIN.

         ANY TRANSFEREE OF THIS CERTIFICATE SHALL BE DEEMED TO MAKE THE
         REPRESENTATIONS SET FORTH IN SECTION 5.2(C) OF THE AGREEMENT REFERRED
         TO HEREIN.

         THE CERTIFICATE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DECREASED
         BY THE PRINCIPAL PAYMENTS HEREON AND REALIZED LOSSES ALLOCABLE HERETO
         AS DESCRIBED IN THE AGREEMENT REFERRED TO HEREIN. ACCORDINGLY,
         FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE CERTIFICATE
         PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE
         DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY
         ASCERTAIN ITS CERTIFICATE PRINCIPAL BALANCE BY INQUIRY OF THE
         SECURITIES ADMINISTRATOR NAMED HEREIN.

<PAGE>

<TABLE>
<CAPTION>
<S>                                                            <C>
DBALT Series 2005-1, Class M                                   Aggregate Certificate Principal Balance
                                                               of the Class M Certificates as
                                                               of the Issue Date: $--------------

Pass-Through Rate: Variable                                    Denomination: $______________

Date of Pooling and Servicing Agreement                        Master Servicer: Wells Fargo Bank, N.A.
and Cut-off Date: January 1, 2005

First Distribution Date: February 25, 2005                     Trustee: HSBC Bank USA, National Association
No.___                                                         Issue Date: January 31, 2005

                                                               CUSIP:_________________
</TABLE>

       DEUTSCHE ALT-A SECURITIES, INC. MORTGAGE LOAN TRUST, SERIES 2005-1
                      ASSET BACKED PASS-THROUGH CERTIFICATE

evidencing a fractional undivided interest in the distributions allocable to the
Class M Certificates with respect to a trust fund consisting primarily of a pool
of conventional one- to four-family fixed rate mortgage loans (the "Mortgage
Loans") secured by one- to four- family residences, units in planned unit
developments and individual condominium units (the "Trust Fund") sold by
DEUTSCHE ALT-A SECURITIES, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         DEUTSCHE ALT-A SECURITIES, INC., THE MASTER SERVICER, THE SECURITIES
         ADMINISTRATOR, THE TRUSTEE, ANY SERVICER 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
the Percentage Interest evidenced hereby in the beneficial ownership interest of
Certificates of the same Class as this Certificate in certain assets of the
Trust Fund generally consisting of the Mortgage Loans and related assets sold by
Deutsche Alt-A Securities, Inc. (the "Depositor"). The Mortgage Loans were sold
by DB Structured Products, Inc. to the Depositor. Wells Fargo Bank, N.A. will
act as master servicer of the Mortgage Loans (the "Master Servicer," which term
includes any successors thereto under the Agreement referred to below). The
Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as
of the Cut-Off Date specified above (the "Agreement"), among the Depositor,
Wells Fargo Bank, N.A., as Master Servicer and securities administrator (the
"Securities Administrator") and HSBC Bank USA, National Association as trustee
(the "Trustee"), a summary of certain of the pertinent provisions of which is
set forth hereafter. To the extent not defined herein, capitalized terms used
herein shall have the meaning ascribed to them in the Agreement. This
Certificate is issued under and is subject to the terms,

                                     A-4-2
<PAGE>

provisions and conditions of the Agreement, to which Agreement the Holder of
this Certificate by virtue of its 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 such 25th day (a "Distribution Date"),
commencing on the First Distribution Date specified above, to the Person in
whose name this Certificate is registered on the last Business Day of the month
immediately preceding the month in which such Distribution Date occurs (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 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 Securities Administrator by
wire transfer in immediately available funds to the account of the Person
entitled thereto if such Person shall have so notified the Securities
Administrator 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 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 Securities Administrator of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency appointed by the Securities Administrator
for that purpose as provided in the Agreement.

                  The Pass-Through Rate applicable with respect to the first
Distribution Date shall be 5.75% per annum and with respect to any Distribution
Date thereafter shall equal a rate per annum equal to the lesser of (i) the
weighted average of the Net Mortgage Rates of the Group I Mortgage Loans and the
Group II Mortgage Loans (weighted on the basis of the results of subtracting
from the aggregate principal balance of each loan group the current aggregate
Certificate Principal Balance of the related Senior Certificates, other than the
Class I-A-2 Certificates) and (ii) 5.75%.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificate 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 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.

                                     A-4-3
<PAGE>

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Master Servicer, the Trustee, the Securities
Administrator and the rights of the Certificateholders under the Agreement at
any time by the Depositor, the Master Servicer, the Trustee and the Securities
Administrator with the consent of the Holders of Certificates evidencing, in the
aggregate, not less than 66-2/3% of the Trust Fund. 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 Securities Administrator
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 Securities Administrator 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.

                  Any transferee of this Certificate shall be deemed to make the
representations set forth in Section 5.2(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 Securities Administrator 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 Master Servicer, the Trustee, the
Securities Administrator and any agent of the Depositor, the Master Servicer,
the Trustee or the Securities Administrator may treat the Person in whose name
this Certificate is registered as the owner hereof for all purposes, and none of
the Depositor, the Master Servicer, the Trustee or the Securities Administrator
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 Securities Administrator 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

                                     A-4-4
<PAGE>

Mortgage Loan remaining in the Trust Fund and (ii) the purchase by the party
designated in the Agreement at a price determined as provided in the Agreement
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 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 or equal
to 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 neither the Trustee nor the Securities Administrator assume
any responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Securities Administrator 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 Securities Administrator has caused
this Certificate to be duly executed.

Dated:
                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION

                  This is one of the Class M Certificates referred to in the
within-mentioned Agreement.

                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                      Authorized Officer

<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
                                                                --------------
                                                                (Cust) (Minor)
                                                             under Uniform Gifts
                                                                 to Minors Act
TEN ENT - as tenants by the entireties                         ________________
                                                                    (State)
JT TEN  - as joint tenants with right
          if survivorship and not as
          tenants in common

     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 Asset Backed
Pass-Through Certificate 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 or the Securities
Administrator 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 B-[1][2] CERTIFICATES

         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 SUBORDINATED IN RIGHT OF PAYMENT TO THE GROUP I
         SENIOR CERTIFICATES, THE GROUP II SENIOR CERTIFICATES, THE CLASS M
         CERTIFICATES [AND THE CLASS B-1 CERTIFICATES], TO THE EXTENT DESCRIBED
         IN THE AGREEMENT REFERRED TO HEREIN.

         NO TRANSFER OF THIS CERTIFICATE MAY BE MADE TO ANY PERSON, UNLESS THE
         TRANSFEREE PROVIDES A CERTIFICATION PURSUANT TO SECTION 5.2(C) OF THE
         AGREEMENT.

         THE CERTIFICATE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DECREASED
         BY THE PRINCIPAL PAYMENTS HEREON AND REALIZED LOSSES ALLOCABLE HERETO
         AS DESCRIBED IN THE AGREEMENT REFERRED TO HEREIN. ACCORDINGLY,
         FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE CERTIFICATE
         PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE
         DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY
         ASCERTAIN ITS CERTIFICATE PRINCIPAL BALANCE BY INQUIRY OF THE
         SECURITIES ADMINISTRATOR NAMED HEREIN.

<PAGE>

<TABLE>
<CAPTION>
<S>                                                            <C>
DBALT Series 2005-1, Class B-[1][2]                            Aggregate Certificate Principal Balance of the
                                                               Class B-[1][2] Certificates as of the
                                                               Issue Date: $

Pass-Through Rate: Variable                                    Denomination: $

Date of Pooling and Servicing Agreement                        Master Servicer: Wells Fargo Bank, N.A.
and Cut-off Date: January 1, 2005

First Distribution Date: February 25, 2005                     Trustee: HSBC Bank USA, National Association

No. ______                                                     Issue Date: January 31, 2005

                                                               CUSIP:
</TABLE>

       DEUTSCHE ALT-A SECURITIES, INC. MORTGAGE LOAN TRUST, SERIES 2005-1
                      ASSET BACKED PASS-THROUGH CERTIFICATE

evidencing a fractional undivided interest in the distributions allocable to the
Class B-[1][2] Certificates with respect to a trust fund consisting primarily of
a pool of conventional one- to four-family fixed rate mortgage loans (the
"Mortgage Loans") secured by one- to four- family residences, units in planned
unit developments and individual condominium units (the "Trust Fund") sold by
DEUTSCHE ALT-A SECURITIES, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         DEUTSCHE ALT-A SECURITIES, INC., THE MASTER SERVICER, THE SECURITIES
         ADMINISTRATOR, THE TRUSTEE, ANY SERVICER 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
the Percentage Interest evidenced hereby in the beneficial ownership interest of
Certificates of the same Class as this Certificate in certain assets of the
Trust Fund generally consisting of the Mortgage Loans and related assets sold by
Deutsche Alt-A Securities, Inc. (the "Depositor"). The Mortgage Loans were sold
by DB Structured Products, Inc. to the Depositor. Wells Fargo Bank, N.A. will
act as master servicer of the Mortgage Loans (the "Master Servicer," which term
includes any successors thereto under the Agreement referred to below). The
Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as
of the Cut-Off Date specified above (the "Agreement"), among the Depositor,
Wells Fargo Bank, N.A., as Master Servicer and securities administrator (the
"Securities Administrator") and HSBC Bank USA, National Association as trustee
(the "Trustee"), a summary of certain of the pertinent provisions of which is
set forth hereafter. To the extent not defined herein, capitalized terms used
herein shall have the meaning ascribed to them in the Agreement. This
Certificate is issued under and is subject to the terms,

                                     A-5-2
<PAGE>

provisions and conditions of the Agreement, to which Agreement the Holder of
this Certificate by virtue of its 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 such 25th day (a "Distribution Date"),
commencing on the First Distribution Date specified above, to the Person in
whose name this Certificate is registered at the close of business on the last
Business Day of the month immediately preceding the month in which such
Distribution Date occurs (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 B-[1][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 Securities Administrator by
wire transfer in immediately available funds to the account of the Person
entitled thereto if such Person shall have so notified the Securities
Administrator 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
B-[1][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 Securities Administrator
of the pendency of such distribution and only upon presentation and surrender of
this Certificate at the office or agency appointed by the Securities
Administrator for that purpose as provided in the Agreement.

                  The Pass-Through Rate with respect to the first Distribution
Date shall be 5.75% per annum and with respect to any Distribution Date
thereafter shall equal a rate per annum equal to the lesser of (i) the weighted
average of the Net Mortgage Rates of the Group I Mortgage Loans and the Group II
Mortgage Loans (weighted on the basis of the results of subtracting from the
aggregate principal balance of each loan group the current aggregate Certificate
Principal Balance of the related Senior Certificates, other than the Class I-A-2
Certificates) and (ii) 5.75%.

                  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 Master Servicer,

                                     A-5-3
<PAGE>

the Trustee, the Securities Administrator and the rights of the
Certificateholders under the Agreement at any time by the Depositor, the Master
Servicer, the Trustee and the Securities Administrator with the consent of the
Holders of Certificates evidencing, in the aggregate, not less than 66-2/3% of
the Trust Fund. 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 Securities Administrator
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 Securities Administrator 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 to any person
unless the Transferee provides a certification pursuant to Section 5.2(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 Securities Administrator 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 Master Servicer, the Trustee, the
Securities Administrator and any agent of the Depositor, the Master Servicer,
the Trustee or the Securities Administrator may treat the Person in whose name
this Certificate is registered as the owner hereof for all purposes, and none of
the Depositor, the Master Servicer, the Trustee or the Securities Administrator
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 Securities Administrator 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 remaining in the Trust Fund and (ii) the purchase by the party designated
in the Agreement at a price determined as provided in the Agreement 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 all the Mortgage Loans and all

                                     A-5-4
<PAGE>

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 or equal to 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 neither the Trustee nor the Securities Administrator assume
any responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Securities Administrator, 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 Securities Administrator has caused
this Certificate to be duly executed.

Dated:
                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION

                  This is one of the Class B-[1][2] Certificates referred to in
the within-mentioned Agreement.

                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                      Authorized Officer

<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
                                                                --------------
                                                                (Cust) (Minor)
                                                             under Uniform Gifts
                                                                 to Minors Act
TEN ENT - as tenants by the entireties                         ________________
                                                                    (State)
JT TEN  - as joint tenants with right
          if survivorship and not as
          tenants in common

     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 Asset Backed
Pass-Through Certificate 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 or the Securities
Administrator 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 B-[3][4][5] CERTIFICATES

         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 SUBORDINATED IN RIGHT OF PAYMENT TO THE GROUP I
         SENIOR CERTIFICATES, THE GROUP II SENIOR CERTIFICATES, THE CLASS M
         CERTIFICATES, THE CLASS B-1 CERTIFICATES [,/AND] CLASS B-2 CERTIFICATES
         [[,/AND] CLASS B-3 CERTIFICATES [,/AND] CLASS B-4 CERTIFICATES], TO THE
         EXTENT DESCRIBED IN THE AGREEMENT REFERRED TO HEREIN.

         THE CERTIFICATE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DECREASED
         BY THE PRINCIPAL PAYMENTS HEREON AND REALIZED LOSSES ALLOCABLE HERETO
         AS DESCRIBED IN THE AGREEMENT REFERRED TO HEREIN. ACCORDINGLY,
         FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE CERTIFICATE
         PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE
         DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY
         ASCERTAIN ITS CERTIFICATE PRINCIPAL BALANCE BY INQUIRY OF THE
         SECURITIES ADMINISTRATOR NAMED HEREIN.

         THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE
         SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR UNDER ANY STATE
         SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THIS CERTIFICATE,
         AGREES THAT THIS CERTIFICATE MAY BE REOFFERED, RESOLD, PLEDGED OR
         OTHERWISE TRANSFERRED ONLY IN COMPLIANCE WITH THE SECURITIES ACT AND
         OTHER APPLICABLE LAWS AND (1) OUTSIDE OF THE UNITED STATES WITHIN THE
         MEANING OF AND IN COMPLIANCE WITH REGULATION S UNDER THE ACT
         ("REGULATION S"), OR (2) WITHIN THE UNITED STATES TO (A) "QUALIFIED
         INSTITUTIONAL BUYERS" WITHIN THE MEANING OF AND IN COMPLIANCE WITH RULE
         144A UNDER THE ACT ("RULE 144A") OR (B) TO INSTITUTIONAL INVESTORS THAT
         ARE "ACCREDITED INVESTORS" WITHIN THE MEANING OF RULE 501(A)(1), (2),
         (3) OR (7) OF "REGULATION D" UNDER THE ACT.

         [THIS CERTIFICATE IS A REGULATION S TEMPORARY GLOBAL CERTIFICATE FOR
         PURPOSES OF REGULATION S UNDER THE UNITED STATES SECURITIES ACT OF
         1933, AS AMENDED (THE "SECURITIES ACT"). PRIOR TO THE DATE THAT IS 40
         DAYS AFTER

<PAGE>

         THE LATER OF (I) THE COMMENCEMENT OF THE OFFERING OF THE OFFERED
         CERTIFICATES AND (II) THE CLOSING DATE, THIS CERTIFICATE MAY NOT BE
         OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED IN THE UNITED STATES OR
         TO A U.S. PERSON EXCEPT PURSUANT TO AN EXEMPTION FROM THE REGISTRATION
         REQUIREMENTS OF THE SECURITIES ACT.]

         [NO BENEFICIAL OWNERS OF THIS REGULATION S TEMPORARY GLOBAL CERTIFICATE
         SHALL BE ENTITLED TO RECEIVE PAYMENTS OF PRINCIPAL OR INTEREST HEREIN
         UNLESS THE REQUIRED CERTIFICATIONS HAVE BEEN DELIVERED PURSUANT TO THE
         TERMS OF THE AGREEMENT (AS DEFINED HEREIN).]

         [THE HOLDER OF THIS REGULATION S PERMANENT GLOBAL CERTIFICATE BY ITS
         ACCEPTANCE HEREOF AGREES NOT TO OFFER, SELL OR OTHERWISE TRANSFER SUCH
         CERTIFICATE WITHIN THE UNITED STATES OR TO U.S. PERSONS (AS DEFINED IN
         REGULATION S UNDER THE SECURITIES ACT) PRIOR TO THE DATE WHICH IS THE
         LATER OF (I) 40 DAYS AFTER THE LATER OF THE CLOSING DATE AND (II) THE
         DATE ON WHICH THE REQUISITE CERTIFICATIONS ARE DUE TO AND PROVIDED TO
         THE TRUSTEE AND SECURITIES ADMINISTRATOR PURSUANT TO THE AGREEMENT (AS
         DEFINED BELOW), EXCEPT PURSUANT TO AN EXEMPTION FROM THE REGISTRATION
         REQUIREMENTS OF THE SECURITIES ACT.]

         NO TRANSFER OF THIS CERTIFICATE MAY BE MADE TO ANY PERSON, UNLESS THE
         TRANSFEREE PROVIDES A CERTIFICATION PURSUANT TO SECTION 5.2(C) OF THE
         AGREEMENT.

                                     A-6-2
<PAGE>

<TABLE>
<CAPTION>
<S>                                                            <C>
DBALT Series 2005-1, Class B-[3][4][5]                         Aggregate Certificate Principal Balance
                                                               of the Class B-[3][4][5] Certificates as
                                                               of the Issue Date: $

Pass-Through Rate: Variable                                    Denomination: $

Date of Pooling and Servicing Agreement                        Master Servicer: Wells Fargo Bank, N.A.
and Cut-off Date: January 1, 2005

First Distribution Date: February 25, 2005                     Trustee: HSBC Bank USA, National Association

No. ______                                                     Issue Date: January 31, 2005

                                                               CUSIP:
</TABLE>

       DEUTSCHE ALT-A SECURITIES, INC. MORTGAGE LOAN TRUST, SERIES 2005-1
                      ASSET BACKED PASS-THROUGH CERTIFICATE

evidencing a fractional undivided interest in the distributions allocable to the
Class B-[3][4][5] Certificates with respect to a trust fund consisting primarily
of a pool of conventional one- to four-family fixed rate mortgage loans (the
"Mortgage Loans") secured by one- to four- family residences, units in planned
unit developments and individual condominium units (the "Trust Fund") sold by
DEUTSCHE ALT-A SECURITIES, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         DEUTSCHE ALT-A SECURITIES, INC., THE MASTER SERVICER, THE SECURITIES
         ADMINISTRATOR, THE TRUSTEE, ANY SERVICER 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 [Deutsche Bank Securities Inc.] is the
registered owner of the Percentage Interest evidenced hereby in the beneficial
ownership interest of Certificates of the same Class as this Certificate in
certain assets of the Trust Fund generally consisting of the Mortgage Loans and
related assets sold by Deutsche Alt-A Securities, Inc. (the "Depositor"). The
Mortgage Loans were sold by DB Structured Products, Inc. to the Depositor. Wells
Fargo Bank, N.A. will act as master servicer of the Mortgage Loans (the "Master
Servicer," which term includes any successors thereto under the Agreement
referred to below). The Trust Fund was created pursuant to the Pooling and
Servicing Agreement dated as of the Cut-Off Date specified above (the
"Agreement"), among the Depositor, Wells Fargo Bank, N.A., as Master Servicer
and securities administrator (the "Securities Administrator") and HSBC Bank USA,
National Association as trustee (the "Trustee"), a summary of certain of the
pertinent provisions of which is set forth hereafter. To the extent not defined
herein, capitalized terms used herein shall have the meaning ascribed to them in
the Agreement. This Certificate is issued under and is subject to

                                     A-6-3
<PAGE>

the terms, provisions and conditions of the Agreement, to which Agreement the
Holder of this Certificate by virtue of its 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 such 25th day (a "Distribution Date"),
commencing on the First Distribution Date specified above, to the Person in
whose name this Certificate is registered at the close of business on the
Business Day immediately preceding such Distribution Date (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
B-[3][4][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 Securities Administrator by
wire transfer in immediately available funds to the account of the Person
entitled thereto if such Person shall have so notified the Securities
Administrator 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
B-[3][4][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 Securities
Administrator of the pendency of such distribution and only upon presentation
and surrender of this Certificate at the office or agency appointed by the
Securities Administrator for that purpose as provided in the Agreement.

                  The Pass-Through Rate with respect to the first Distribution
Date shall be 5.75% per annum and with respect to any Distribution Date
thereafter shall equal a rate per annum equal to the lesser of (i) the weighted
average of the Net Mortgage Rates of the Group I Mortgage Loans and the Group II
Mortgage Loans (weighted on the basis of the results of subtracting from the
aggregate principal balance of each loan group the current aggregate certificate
principal balance of the related Senior Certificates, other than the Class I-A-2
Certificates) and (ii) [___]%.

                  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.

                                     A-6-4
<PAGE>

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Depositor, the Master Servicer, the Trustee, the Securities
Administrator and the rights of the Certificateholders under the Agreement at
any time by the Depositor, the Master Servicer, the Trustee and the Securities
Administrator with the consent of the Holders of Certificates evidencing, in the
aggregate, not less than 66-2/3% of the Trust Fund. 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 Securities Administrator
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 Securities Administrator 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 Securities Administrator 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.

                  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 Securities Administrator shall require
receipt of (i) if such transfer is purportedly being made in reliance upon Rule
144A or Regulation S 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
Exhibits B-1 and B-3, respectively, (ii) if such transfer is purportedly being
made in reliance upon Rule 501(a) 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 form attached to the
Agreement as Exhibit B-2 and (iii) in all other cases, an Opinion of Counsel
satisfactory to it that

                                     A-6-5
<PAGE>

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 Master Servicer or the Securities Administrator 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, the Trustee or the Securities
Administrator is obligated to register or qualify the Class of 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, the Master Servicer and the Securities Administrator
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 shall be made to any person
unless the Transferee provides a certification pursuant to Section 5.2(c) of the
Agreement.

                  The Depositor, the Master Servicer, the Trustee, the
Securities Administrator and any agent of the Depositor, the Master Servicer,
the Trustee or the Securities Administrator may treat the Person in whose name
this Certificate is registered as the owner hereof for all purposes, and none of
the Depositor, the Master Servicer, the Trustee or the Securities Administrator
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 Securities Administrator 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 remaining in the Trust Fund and (ii) the purchase by the party designated
in the Agreement at a price determined as provided in the Agreement 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 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 or equal to 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 neither the Trustee nor the Securities Administrator assume
any responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Securities Administrator, by manual signature, this Certificate
shall not be entitled to any benefit under the Agreement or be valid for any
purpose.

                                     A-6-6
<PAGE>

                  IN WITNESS WHEREOF, the Securities Administrator has caused
this Certificate to be duly executed.

Dated:
                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION

                  This is one of the Class B-[3][4][5] Certificates referred to
in the within-mentioned Agreement.

                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                      Authorized Officer

<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
                                                                --------------
                                                                (Cust) (Minor)
                                                             under Uniform Gifts
                                                                 to Minors Act
TEN ENT - as tenants by the entireties                         ________________
                                                                    (State)
JT TEN  - as joint tenants with right
          if survivorship and not as
          tenants in common

     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 Asset Backed
Pass-Through Certificate 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 or the Securities
Administrator 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 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
         "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").

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
         THE DEPOSITORY TRUST COMPANY TO THE DEPOSITOR OR ITS AGENT FOR
         REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE
         ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS
         REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
         COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR
         OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
         SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

         ANY RESALE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE MAY BE
         MADE ONLY IN ACCORDANCE WITH THE PROVISIONS OF SECTION 5.02(C) OF THE
         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.

         ANY RESALE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE MAY BE
         MADE ONLY IF THE PROPOSED TRANSFEREE PROVIDES (I) AN AFFIDAVIT TO THE
         SECURITIES ADMINISTRATOR 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

<PAGE>

         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 (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(C) OF THE AGREEMENT REFERRED TO HEREIN. ANY PERSON THAT IS
         A DISQUALIFIED ORGANIZATION IS PROHIBITED FROM ACQUIRING BENEFICIAL
         OWNERSHIP OF THIS CERTIFICATE.

                                     A-7-2
<PAGE>

<TABLE>
<CAPTION>
<S>                                                              <C>
DBALT Series 2005-1, Class R                                     Aggregate Percentage Interest of the Class R
                                                                 Certificates as of the Issue Date: 100.00%

Pass-Through Rate:  Variable

Date of Pooling and Servicing Agreement                          Master Servicer: Wells Fargo Bank, N.A.
and Cut-off Date: January 1, 2005

First Distribution Date: February 25, 2005                       Trustee: HSBC Bank USA, National Association

No __                                                            Issue Date: January 31, 2005
</TABLE>

       DEUTSCHE ALT-A SECURITIES, INC. MORTGAGE LOAN TRUST, SERIES 2005-1
                      ASSET BACKED PASS-THROUGH CERTIFICATE

evidencing a fractional undivided interest in the distributions allocable to the
Class R Certificates with respect to a trust fund consisting primarily of a pool
of conventional one- to four-family fixed rate mortgage loans (the "Mortgage
Loans") secured by one- to four- family residences, units in planned unit
developments and individual condominium units (the "Trust Fund") sold by
DEUTSCHE ALT-A SECURITIES, INC.

         THIS CERTIFICATE DOES NOT REPRESENT AN OBLIGATION OF OR INTEREST IN
         DEUTSCHE ALT-A SECURITIES, INC., THE MASTER SERVICER, THE SECURITIES
         ADMINISTRATOR, THE TRUSTEE, ANY SERVICER 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 [Deutsche Bank Securities Inc.] is the
registered owner of the Percentage Interest evidenced hereby in the beneficial
ownership interest of Certificates of the same Class as this Certificate in
certain assets of the Trust Fund generally consisting of the Loans and related
assets sold by Deutsche Alt-A Securities, Inc. (the "Depositor"). The Loans were
sold by DB Structured Products, Inc. to the Depositor. Wells Fargo Bank, N.A.
will act as master servicer of the Loans (the "Master Servicer," which term
includes any successors thereto under the Agreement referred to below). The
Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as
of the Cut-Off Date specified above (the "Agreement"), among the Depositor,
Wells Fargo Bank, N.A., as Master Servicer and securities administrator (the
"Securities Administrator") and HSBC Bank USA, National Association as trustee
(the "Trustee"), a summary of certain of the pertinent provisions of which is
set forth hereafter. To the extent not defined herein, capitalized terms used
herein shall have the meaning ascribed to them in the Agreement. This
Certificate is issued under and is subject to the terms, provisions

                                     A-7-3
<PAGE>

and conditions of the Agreement, to which Agreement the Holder of this
Certificate by virtue of its 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 such 25th day (a "Distribution Date"),
commencing on the First Distribution Date specified above, to the Person in
whose name this Certificate is registered at the close of business on the
Business Day immediately preceding such Distribution Date (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 Securities Administrator by
wire transfer in immediately available funds to the account of the Person
entitled thereto if such Person shall have so notified the Securities
Administrator 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, 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 Securities Administrator of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency appointed by the Securities Administrator
for that purpose as provided in the Agreement.

                  This Certificate is one of a duly authorized issue of
Certificates designated as Mortgage Pass-Through Certificate 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, 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 Master Servicer, the Trustee, the Securities
Administrator and the rights of the Certificateholders under the Agreement at
any time by the Depositor, the Master Servicer, the Trustee and the Securities
Administrator with the consent of the Holders of Certificates evidencing, in the
aggregate, not less than 66-2/3% of the Trust Fund. 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

                                     A-7-4
<PAGE>

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 Securities Administrator
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 Securities Administrator 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, 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 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 Securities Administrator 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 B-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 Master Servicer or the Securities Administrator 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, the Trustee or the Securities Administrator is obligated to register
or qualify the Class of 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, the
Master Servicer and the Securities Administrator 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.

                  Each Holder of this Certificate will be deemed to have agreed
to be bound by the restrictions set forth in the Agreement to the effect that
(i) each person holding or acquiring any Ownership Interest in this Certificate
must be a United States Person and a Permitted Transferee, (ii) the transfer of
any Ownership Interest in this Certificate will be conditioned upon the

                                     A-7-5
<PAGE>

delivery to the Securities Administrator of, among other things, an affidavit to
the effect that it is a United States Person and Permitted Transferee, (iii) any
attempted or purported transfer of any Ownership Interest in this Certificate in
violation of such restrictions will be absolutely null and void and will vest no
rights in the purported transferee, and (iv) if any person other than a United
States Person and a Permitted Transferee acquires any Ownership Interest in this
Certificate in violation of such restrictions, then the Depositor will have the
right, in its sole discretion and without notice to the Holder of this
Certificate, to sell this Certificate to a purchaser selected by the Depositor,
which purchaser may be the Depositor, or any affiliate of the Depositor, on such
terms and conditions as the Depositor may choose.

                  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.

                  Prior to registration of any transfer, sale or other
disposition of this Certificate, the proposed transferee shall provide to the
Securities Administrator (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 representing the beneficial ownership of the residual interests in
each 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(c) 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 any portion
of the Trust Fund to cease to qualify as a REMIC or cause the imposition of a
tax upon any REMIC.

                  No service charge will be made for any such registration of
transfer or exchange of Certificates, but the Securities Administrator 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 Master Servicer, the Trustee, the
Securities Administrator and any agent of the Depositor, the Master Servicer,
the Trustee or the Securities Administrator may

                                     A-7-6
<PAGE>

treat the Person in whose name this Certificate is registered as the owner
hereof for all purposes, and none of the Depositor, the Master Servicer, the
Trustee or the Securities Administrator 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 Securities Administrator 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 remaining in the Trust Fund and (ii) the purchase by the party designated
in the Agreement at a price determined as provided in the Agreement 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 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 or equal to 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 neither the Trustee nor the Securities Administrator assume
any responsibility for their correctness.

                  Unless the certificate of authentication hereon has been
executed by the Securities Administrator, by manual signature, this Certificate
shall not be entitled to any benefit under the Agreement or be valid for any
purpose.

                                     A-7-7
<PAGE>

                  IN WITNESS WHEREOF, the Securities Administrator has caused
this Certificate to be duly executed.

Dated:
                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                     Authorized Officer

                          CERTIFICATE OF AUTHENTICATION

                  This is one of the Class R Certificates referred to in the
within-mentioned Agreement.

                                          WELLS FARGO BANK, N.A.
                                          as Securities Administrator

                                          By:___________________________________
                                                      Authorized Officer

<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
                                                                --------------
                                                                (Cust) (Minor)
                                                             under Uniform Gifts
                                                                 to Minors Act
TEN ENT - as tenants by the entireties                         ________________
                                                                    (State)
JT TEN  - as joint tenants with right
          if survivorship and not as
          tenants in common

     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 Asset Backed
Pass-Through Certificate 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 or the Securities
Administrator 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-1

                    FORM OF TRANSFEROR REPRESENTATION LETTER

                                     [Date]

Wells Fargo Bank, N.A.
Sixth and Marquette Avenue
Minneapolis, Minnesota 55479
Attention: Corporate Trust DBALT-2005-1

         Re:      Deutsche Alt-A Securities, Inc. Mortgage Loan Trust, Series
                  2005-1 Asset Backed Pass-Through Certificates Class B-3, Class
                  B-4, Class B-5 and Class R Certificates
                  --------------------------------------------------------------

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
January 1, 2005, among Deutsche Alt-A Securities, Inc. as Depositor, Wells Fargo
Bank, N.A. as Master Servicer and Securities Administrator and HSBC Bank USA,
National Association as trustee (the "Pooling and Servicing Agreement"),
pursuant to which Pooling and Servicing Agreement the Certificates were issued.

                                     B-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:

                                     B-1-2
<PAGE>

                    FORM OF TRANSFEREE REPRESENTATION LETTER

                                     [Date]

Wells Fargo Bank, N.A.
Sixth and Marquette Avenue
Minneapolis, Minnesota 55479
Attention: Corporate Trust DBALT 2005-1

         Re:      Deutsche Alt-A Securities, Inc. Mortgage Loan Trust, Series
                  2005-1 Asset Backed Pass-Through Certificates Class B-3, Class
                  B-4, Class B-5 and Class R Certificates
                  --------------------------------------------------------------

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.

                           3. The Transferee: (a) is not an employee benefit or
                  other plan subject to the prohibited transaction provisions of
                  the Employee Retirement Income Security Act of 1974, as
                  amended ("ERISA), or Section 4975 of the Internal Revenue Code
                  of 1986, as amended (the "Code") (each, a "Plan"), or any
                  other person (including an investment manager, a named
                  fiduciary or a trustee of any Plan) acting, directly or
                  indirectly, on behalf of or purchasing any Certificate with
                  "plan assets" of any Plan within the meaning of the Department
                  of Labor ("DOL") regulation at 29 C.F.R. ss.2510.3-101 or (b)
                  [[for Class R] has provided the Securities Administrator with
                  an opinion of counsel on which the Trustee, the

                                     B-1-3
<PAGE>

                  Depositor, the Master Servicer and the Securities
                  Administrator may rely, acceptable to and in form and
                  substance satisfactory to the Trustee to the effect that the
                  purchase of Certificates is permissible under applicable law,
                  will not constitute or result in any non-exempt prohibited
                  transaction under ERISA or Section 4975 of the Code and will
                  not subject the Trust Fund, the Trustee, the Depositor, the
                  Master Servicer or the Securities Administrator to any
                  obligation or liability (including obligations or liabilities
                  under ERISA or Section 4975 of the Code) in addition to those
                  undertaken in the Pooling and Servicing Agreement.] [for Class
                  B-[1][2][3] (i) it is an insurance company, (ii) 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 Prohibited Transaction Class Exemption
                  ("PTCE") 95-60, and (iii) the conditions in Sections I and III
                  of PTCE 95-60 have been satisfied.]

                  In addition, the Transferee hereby certifies, represents and
warrants to, and covenants with, the Depositor, the Trustee, the Securities
Administrator and the Master Servicer that the Transferee will not transfer such
Certificates to any Plan or person unless such Plan or person meets the
requirements set forth in paragraph 3 above.

                  All capitalized terms used but not otherwise defined herein
have the respective meanings assigned thereto in the Pooling and Servicing
Agreement, dated as of January 1, 2005, among Deutsche Alt-A Securities, Inc. as
Depositor, Wells Fargo Bank, N.A. as Master Servicer and Securities
Administrator and HSBC Bank USA, National Association as Trustee, pursuant to
which the Certificates were issued.

                                                     [TRANSFEREE]

                                                     By:
                                                         -----------------------
                                                     Name:
                                                     Title:

                                     B-1-4
<PAGE>

                                                          ANNEX 1 TO EXHIBIT B-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 Wells Fargo Bank, N.A., as Securities
Administrator, with respect to the asset backed 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 $25,000,000 as demonstrated in
                  its latest annual financial statements, a copy of which is
                  attached hereto.

----------
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.

                                     B-1-5
<PAGE>

         ___      Broker-dealer. The Transferee is a dealer registered pursuant
                  to Section 15 of the Securities Exchange Act of 1934.

         ___      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

                                     B-1-6
<PAGE>

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 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:

                                     B-1-7
<PAGE>

                                                          ANNEX 2 TO EXHIBIT B-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 Wells Fargo Bank, N.A., as Securities
Administrator, with respect to the asset backed 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.

                                     B-1-8
<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

                                     B-1-9
<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: (Signature)  _______________________________________________________________

Name of Signatory  _____________________________________________________________

Title  ________________________________________________________________________

Date of this certificate  ______________________________________________________

Date of information provided in paragraph 3  ___________________________________

                                     B-1-10
<PAGE>

                                  EXHIBIT B-2

                    FORM OF TRANSFEROR REPRESENTATION LETTER

                                                    ____________, 20__

Wells Fargo Bank, N.A.
Sixth and Marquette Avenue
Minneapolis, Minnesota 55479
Attention: Corporate Trust DBALT 2005-1

         Re:      Deutsche Alt-A Securities, Inc. Mortgage Loan Trust, Series
                  2005-1 Asset Backed Pass-Through Certificates Class B-2, Class
                  B-3, Class B-4 and Class R Certificates
                  --------------------------------------------------------------

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 Seller 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, or (e) has taken any other action, that (as to any of (a) through
(e) above) would constitute a distribution of the Certificates under the
Securities Act of 1933 (the "Act'), that would render the disposition of any
Certificate a violation of Section 5 of the Act or any state securities law, or
that would require registration or qualification pursuant thereto. The Seller
will not act, in any manner set forth in the foregoing sentence with respect to
any Certificate. The Seller has not and will not sell or otherwise transfer any
of the Certificates, except in compliance with the provisions of the Pooling and
Servicing Agreement.

                                                     Very truly yours,

                                                     ___________________________
                                                     (Transferor)

                                                     By:
                                                         -----------------------
                                                     Name:
                                                     Title:

<PAGE>

                            FORM OF TRANSFEREE LETTER

                                                   _______________, 20__

Wells Fargo Bank, N.A.
Sixth and Marquette Avenue
Minneapolis, Minnesota 55479
Attention: Corporate Trust DBALT 2005-1

         Re:      Deutsche Alt-A Securities, Inc. Mortgage Loan Trust, Series
                  2005-1 Asset Backed Pass-Through Certificates Class B-3, Class
                  B-4, Class B-5 and Class R Certificates
                  --------------------------------------------------------------

Ladies and Gentlemen:

                  In connection with the transfer by ______________________ (the
"Transferor") to __________________________ (the "Transferee") of the captioned
mortgage pass-through certificates (the "Certificates"), the Transferee hereby
certifies as follows:

                  1. The Transferee understands that (a) the Certificates have
         not been and will not be registered or qualified under the Securities
         Act of 1933, as amended (the "Act") or any state securities law, (b)
         the Depositor is not required to so register or qualify the
         Certificates, (c) the Certificates may be resold only if registered and
         qualified pursuant to the provisions of the Act or any state securities
         law, or if an exemption from such registration and qualification is
         available, (d) the Pooling and Servicing Agreement contains
         restrictions regarding the transfer of the Certificates and (e) the
         Certificates will bear a legend to the foregoing effect.

                  2. The Transferee is acquiring the Certificates for its own
         account for investment only and not with a view to or for sale in
         connection with any distribution thereof in any manner that would
         violate the Act or any applicable state securities laws.

                  3. The Transferee is (a) a substantial, sophisticated
         institutional investor having such knowledge and experience in
         financial and business matters, and, in particular, in such matters
         related to securities similar to the Certificates, such that it is
         capable of evaluating the merits and risks of investment in the
         Certificates, (b) able to bear the economic risks of such an investment
         and (c) an "accredited investor" within the meaning of Rule 501(a)
         promulgated pursuant to the Act.

                  4. The Transferee has been furnished with, and has had an
         opportunity to review (a) a copy of the Pooling and Servicing Agreement
         and (b) such other information concerning the Certificates, the
         Mortgage Loans and the Depositor as has been requested by the
         Transferee from the Depositor or the Transferor and is relevant to the
         Transferee's decision to purchase the Certificates. The Transferee has
         had any questions arising from such review answered by the Depositor or
         the Transferor to the satisfaction of the Transferee.

                                     B-2-2
<PAGE>

                  5. The Transferee has not and will not nor has it authorized
         or will it authorize any person to (a) offer, pledge, sell, dispose of
         or otherwise transfer any Certificate, any interest in any Certificate
         or any other similar security to any person in any manner, (b) solicit
         any offer to buy or to accept a pledge, disposition of other transfer
         of any Certificate, any interest in any Certificate or any other
         similar security from any person in any manner, (c) otherwise approach
         or negotiate with respect to any Certificate, any interest in any
         Certificate or any other similar security with any person in any
         manner, (d) make any general solicitation by means of general
         advertising or in any other manner or (e) take any other action, that
         (as to any of (a) through (e) above) would constitute a distribution of
         any Certificate under the Act, that would render the disposition of any
         Certificate a violation of Section 5 of the 1933 Act or any state
         securities law, or that would require registration or qualification
         pursuant thereto. The Transferee will not sell or otherwise transfer
         any of the Certificates, except in compliance with the provisions of
         the Pooling and Servicing Agreement.

                  6. The Transferee: (a) is not an employee benefit or other
         plan subject to the prohibited transaction provisions of the Employee
         Retirement Income Security Act of 1974, as amended ("ERISA"), or
         Section 4975 of the Internal Revenue Code of 1986, as amended (the
         "Code") (each, a "Plan"), or any other person (including an investment
         manager, a named fiduciary or a trustee of any Plan) acting, directly
         or indirectly, on behalf of or purchasing any Certificate with "plan
         assets" of any Plan within the meaning of the Department of Labor
         ("DOL") regulation at 29 C.F.R. ss.12510.3-101 or (b) [[for Class R]
         has provided the Trustee with an opinion of counsel on which the
         Depositor, the Master Servicer, the Securities Administrator and the
         Trustee may rely, acceptable to and in form and substance satisfactory
         to the Trustee to the effect that the purchase of Certificates is
         permissible under applicable law, will not constitute or result in any
         non-exempt prohibited transaction under ERISA or Section 4975 of the
         Code and will not subject the Trust Fund, the Trustee, the Master
         Servicer, the Securities Administrator or the Depositor to any
         obligation or liability (including obligations or liabilities under
         ERISA or Section 4975 of the Code) in addition to those undertaken in
         the Pooling and Servicing Agreement.] [for Class B-[3][4][5] (i) it is
         an insurance company, (ii) 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 Prohibited Transaction Class
         Exemption ("PTCE") 95-60, and (iii) the conditions in Sections I and
         III of PTCE 95-60 have been satisfied.]

                  In addition, the Transferee hereby certifies, represents and
warrants to, and covenants with, the Depositor, the Trustee, the Securities
Administrator and the Master Servicer that the Transferee will not transfer such
Certificates to any Plan or person unless such Plan or person meets the
requirements set forth in paragraph 6 above.

                                                     Very truly yours,

                                                     By:
                                                        ------------------------
                                                     Name:
                                                     Title:

                                     B-2-3
<PAGE>

                                   EXHIBIT B-3

                    FORM OF REGULATION S TRANSFER CERTIFICATE

[Date]

Wells Fargo Bank, N.A.
Sixth and Marquette Avenue
Minneapolis, Minnesota 55479
Attention: Corporate Trust DBALT 2005-1

         Re:      Deutsche Alt-A Securities, Inc. Mortgage Loan Trust, Series
                  2005-1 Asset Backed Pass-Through Certificates Class B-3, Class
                  B-4, Class B-5
                  --------------------------------------------------------------

Ladies and Gentlemen:

                  Reference is hereby made to the Pooling and Servicing
Agreement (the "Agreement"), dated as of January 1, 2005, among Deutsche Alt-A
Securities, Inc. (the "Depositor"), Wells Fargo Bank, N.A., as master and
securities administrator (the "Master Servicer") and HSBC Bank USA, National
Association, as trustee (the "Trustee"). Capitalized terms used herein but not
defined herein shall have the meanings assigned thereto in the Agreement.

                  This letter relates to U.S. $[__________] Certificate
Principal Balance of Class B-[3][4][5] Certificates (the "Certificates") which
are held in the name of [name of transferor] (the "Transferor") to effect the
transfer of the Certificates to a person who wishes to take delivery thereof in
the form of an equivalent beneficial interest [name of transferee] (the
"Transferee").

                  In connection with such request, the Transferor hereby
certifies that such transfer has been effected in accordance with the transfer
restrictions set forth in the Agreement and the private placement memorandum
dated January 28, 2005 relating to the Certificates and that the following
additional requirements (if applicable) were satisfied:

                  (a) the offer of the Certificates was not made to a person in
the United States;

                  (b) at the time the buy order was originated, the Transferee
was outside the United States or the Transferor and any person acting on its
behalf reasonably believed that the Transferee was outside the United States;

                  (c) no directed selling efforts were made in contravention of
the requirements of Rule 903(b) or 904(b) of Regulation S, as applicable;

                  (d) the transfer or exchange is not part of a plan or scheme
to evade the registration requirements of the Securities Act;

                                     B-3-1
<PAGE>

                  (e) the Transferee is not a U.S. Person, as defined in
Regulation S under the Securities Act;

                  (f) the transfer was made in accordance with the applicable
provisions of Rule 903(b)(2) or (3) or Rule 904(b)(1), as the case may be; and

                  (g) the Transferee understands that the Certificates have not
been and will not be registered under the Securities Act, that any offers, sales
or deliveries of the Certificates purchased by the Transferee in the United
States or to U.S. persons prior to the date that is 40 days after the later of
(i) the commencement of the offering of the Certificates and (ii) the Closing
Date, may constitute a violation of United States law, and that (x)
distributions of principal and interest and (y) the exchange of beneficial
interests in a Temporary Regulation S Global Certificate for beneficial
interests in the related Permanent Regulation S Global Certificate, in each
case, will be made in respect of such Certificates only following the delivery
by the Holder of a certification of non-U.S. beneficial ownership, at the times
and in the manner set forth in the Agreement.

                                     B-3-2
<PAGE>

                  You are entitled to rely upon this letter and are irrevocably
authorized to produce this letter or a copy hereof to any interested party in
any administrative or legal proceedings or official inquiry with respect to the
matters covered hereby.

                                                     [Name of Transferor]

                                                     By:
                                                         -----------------------
                                                     Name:
                                                     Title:

                                     B-3-3
<PAGE>

                                   EXHIBIT B-4

                         FORM OF CLEARSTREAM CERTIFICATE

[Date]

HSBC Bank USA
452 Fifth Avenue
New York, New York 10018
Attention: Deutsche Alt-A Securities Trust 2005-1

Wells Fargo Bank, N.A.
Sixth Street & Marquette Avenue
Minneapolis, Minnesota 55479
Attention:        Deutsche Alt-A Securities, Inc., 2005-1

         Re:     Deutsche Alt-A Securities, Inc. Mortgage Loan Trust,
                 Series 2005-1 Mortgage Pass-through Certificates, (the "Trust")
                 Class [B-3, B-4, B-5] Certificates (the "Certificates")
                 --------------------------------------------------------------

Ladies and Gentlemen:

                  Reference is hereby made to the Pooling and Servicing
Agreement (the "Agreement"), dated as of January 1, 2005, among Deutsche
Mortgage Securities, Inc. (the "Depositor"), Wells Fargo Bank, N.A., as master
servicer and securities administrator (the "Master Servicer") and HSBC Bank USA,
as trustee (the "Trustee"). Capitalized terms used herein but not defined herein
shall have the meanings assigned thereto in the Agreement.

                  This is to certify that, based solely on certificates we have
received in writing, by tested telex or by electronic transmissions from member
organizations appearing in our records as persons being entitled to a portion of
the Certificates set forth below (our "Member Organizations"), substantially to
the effect set forth in Annex A hereto, U.S. $________ certificate balance of
the above-captioned Certificates held by us or on our behalf are beneficially
owned by non-U.S.] person(s). As used in this paragraph, the term "U.S. person"
has the meaning given to it by Regulation S under the United States Securities
Act of 1933, as amended (the "Securities Act").

                  We further certify (i) that we are not making available
herewith for exchange any portion of the Temporary Regulation S Global
Certificates excepted in such certificates and (ii) that as of the date hereof
we have not received any notification from any of our Member Organizations to
the effect that the statements made by such Member Organizations with respect to
any interest in the Certificates identified above are no longer true and cannot
be relied upon as of the date hereof. We understand that this certification is
required in connection with certain securities laws of the United States. In
connection therewith, if administrative or legal proceedings are commenced or
threatened in connection with this certificate is or would be relevant, we
irrevocably authorized you to produce this certificate to any interested party
in such proceedings.

                                     B-4-1
<PAGE>

                                           Yours faithfully,

                                           [[Insert Name of Depositary for
                                           Euroclear], as operator of the
                                           Euroclear system]

                                           or

                                           [CLEARSTREAM, SOCIETE ANONYME]

                                           By:__________________________________

                                     B-4-2
<PAGE>

                                                          ANNEX A TO EXHIBIT B-4
                                                          ----------------------

                     FORM OF MEMBER ORGANIZATION CERTIFICATE

[(Insert Name of Depositary for
Euroclear), as operator of the
Euroclear system or Clearstream, societe anonyme]

         Re:      Deutsche Alt-A Securities, Inc. Mortgage Loan Trust, Series
                  2005-1 Mortgage Pass-through Certificates, (the "Trust") Class
                  [B-3, B-4, B-5] Certificates (the "Certificates")
                  --------------------------------------------------------------

Ladies and Gentlemen:

                  Reference is hereby made to the Pooling and Servicing
Agreement (the "Agreement"), dated as of January 1, 2005, among Deutsche
Mortgage Securities, Inc. (the "Depositor"), Wells Fargo Bank , N.A., as master
servicer and securities administrator (the "Master Servicer") and HSBC Bank USA,
as trustee (the "Trustee"). Capitalized terms used herein but not defined herein
shall have the meanings assigned thereto in the Agreement.

                  This is to certify that, as of the date hereof and except as
set forth below, the Certificates held by you for our account [except $
________________ of such beneficial interest in such Certificates in respect of
which we are not able to certify and as to which we understand the exercise of
any rights to payments thereon or the exchange for Permanent Regulation S Global
Certificates cannot be made until we do so certify,] are beneficially owned by
non-U.S. persons. As used in this paragraph, the term "U.S. person" has the
meaning given to it by Regulation S under the Securities Act.

                  We undertake to advise you promptly by tested telex on or
prior to the date on which you intend to submit your certification relating to
the Certificates held by you for our account in accordance with your documented
procedures if any applicable statement herein is not correct on such date, and
in the absence of any such notification it may be assumed that this certificate
applies as of such date.

Dated: ____________, 200__(1)

                                         Faithfully,

                                         [Name of Person giving the certificate]

----------
(1) To be dated no earlier than 15 days prior to the event to which the
certification relates.

<PAGE>

                                    EXHIBIT C

                           FORM OF TRANSFER AFFIDAVIT

                                                       Affidavit pursuant to
                                                       Section 860E(e)(4) of the
                                                       Internal Revenue Code of
                                                       1986 as amended and for
                                                       other purposes

STATE OF                             )
                                     )ss:
COUNTY OF                            )

                  [NAME OF OFFICER], being first duly sworn, deposes and says:

                  1. That he/she is [Title of Officer] of [Name of Investor]
(the "Investor"), a [savings institution] [corporation] duly organized and
existing under the laws of [the State of _____] [the United States], on behalf
of which he makes this affidavit.

                  2. That (i) the Investor is not a "disqualified organization"
as defined in Section 860E(e)(5) of the Internal Revenue Code of 1986, as
amended (the "Code"), and will not be a disqualified organization as of [Closing
Date] [date of purchase]; (ii) it is not acquiring the Deutsche Alt-A
Securities, Inc. Mortgage Loan Trust, Series 2005-1 Mortgage Pass-Through
Certificates, Class R Certificates (the "Residual Certificates") for the account
of a disqualified organization; (iii) it consents to any amendment of the
Pooling and Servicing Agreement that shall be deemed necessary by Deutsche Alt-A
Securities, Inc. (upon advice of counsel) to constitute a reasonable arrangement
to ensure that the Residual Certificates will not be owned directly or
indirectly by a disqualified organization; and (iv) it will not transfer such
Residual Certificates unless (a) it has received from the transferee an
affidavit in substantially the same form as this affidavit containing these same
four representations and (b) as of the time of the transfer, it does not have
actual knowledge that such affidavit is false.

                  3. That the Investor is one of the following: (i) a citizen or
resident of the United States, (ii) a corporation or partnership (including an
entity treated as a corporation or partnership for federal income tax purposes)
created or organized in, or under the laws of, the United States or any state
thereof or the District of Columbia (except, in the case of a partnership, to
the extent provided in regulations), provided that no partnership or other
entity treated as a partnership for United States federal income tax purposes
shall be treated as a United States Person unless all persons that own an
interest in such partnership either directly or through any entity that is not a
corporation for United States federal income tax purposes are United States
Persons, (iii) an estate whose income is subject to United States federal income
tax regardless of its source, or (iv) a trust other than a "foreign trust," as
defined in Section 7701 (a)(31) of the Code.

                  4. That the Investor's taxpayer identification number is
________________.

<PAGE>

                  5. That no purpose of the acquisition of the Residual
Certificates is to avoid or impede the assessment or collection of tax.

                  6. That the Investor understands that, as the holder of the
Residual Certificates, the Investor may incur tax liabilities in excess of any
cash flows generated by such Residual Certificates.

                  7. That the Investor intends to pay taxes associated with
holding the Residual Certificates as they become due.

                  IN WITNESS WHEREOF, the Investor has caused this instrument to
be executed on its behalf, pursuant to authority of its Board of Directors, by
its [Title of Officer] this ____ day of _________, 20__.

                                   [NAME OF INVESTOR]

                                   By:  _____________________________________
                                        [Name of Officer]
                                        [Title of Officer]

                                        [Address of Investor for receipt of
                                        distributions]

                                        Address of Investor for receipt of tax
                                        information:

<PAGE>

                  Personally appeared before me the above-named [Name of
Officer], known or proved to me to be the same person who executed the foregoing
instrument and to be the [Title of Officer] of the Investor, 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 Investor.

                  Subscribed and sworn before me this ___ day of _________,
20___.

NOTARY PUBLIC

STATE OF                             )
                                     )ss:
COUNTY OF                            )

My commission expires the ___ day of ___________________, 20___.

<PAGE>

                                   SCHEDULE 1

                                  LOAN SCHEDULE

<PAGE>

                                   SCHEDULE 2

                           PREPAYMENT CHARGE SCHEDULE

<PAGE>

                                   SCHEDULE 3

                Servicing Advances Incurred Prior to Cut-off DatE

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