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STANDARD TERMS OF POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

STANDARD TERMS OF
                         POOLING AND SERVICING AGREEMENT
 | Document Parties: RALI SERIES 2005-QO4 TRUST | RESIDENTIAL ACCREDIT LOANS, INC., | RESIDENTIAL FUNDING CORPORATION, | DEUTSCHE BANK TRUST COMPANY AMERICAS, You are currently viewing:
This Pooling and Servicing Agreement involves

RALI SERIES 2005-QO4 TRUST | RESIDENTIAL ACCREDIT LOANS, INC., | RESIDENTIAL FUNDING CORPORATION, | DEUTSCHE BANK TRUST COMPANY AMERICAS,

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Title: STANDARD TERMS OF POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 1/12/2006

STANDARD TERMS OF
                         POOLING AND SERVICING AGREEMENT
, Parties: rali series 2005-qo4 trust , residential accredit loans  inc.  , residential funding corporation  , deutsche bank trust company americas
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                                                                 Execution Copy


                        RESIDENTIAL ACCREDIT LOANS, INC.,

                                    Company,

                        RESIDENTIAL FUNDING CORPORATION,

                                 Master Servicer,

                                       and

                      DEUTSCHE BANK TRUST COMPANY AMERICAS,

                                     Trustee

                               SERIES SUPPLEMENT,

                           DATED AS OF NOVEMBER 1, 2005

                                       TO

                                STANDARD TERMS OF
                         POOLING AND SERVICING AGREEMENT
                           dated as of August 1, 2004

                  Mortgage Asset-Backed Pass-Through Certificates

                                 Series 2005-QO4



<PAGE>

<TABLE>
<CAPTION>

                                TABLE OF CONTENTS

                                                                                          PAGE

<S>                                                                                         <C>
ARTICLE I          DEFINITIONS...............................................................6

        Section 1.01       Definitions.......................................................6

        Section 1.02       Use of Words and Phrases..........................................27

        Section 1.03       Determination of LIBOR............................................27



ARTICLE II         CONVEYANCE OF MORTGAGE LOANS; ORIGINAL ISSUANCE OF CERTIFICATES..........29

        Section 2.01       Conveyance of Mortgage Loans.....................................29

        Section 2.02       Acceptance by Trustee............................................30

        Section 2.03       Representations, Warranties and Covenants of the Master
                          Servicer and the Company.........................................30

        Section 2.04       Representations and Warranties of Sellers........................33

        Section 2.05       Execution and Authentication of Certificates/Issuance of
                          Certificates Evidencing Interests in REMIC I Certificates........33

        Section 2.06       Conveyance of Uncertificated REMIC I and REMIC II Regular
                          Interests; Acceptance by the Trustee.............................33

        Section 2.07       Issuance of Certificates Evidencing Interest in REMIC II.........33

        Section 2.08        Purposes and Powers of the Trust.................................33

ARTICLE III        ADMINISTRATION AND SERVICING OF MORTGAGE LOANS...........................34

ARTICLE IV         PAYMENTS TO CERTIFICATEHOLDERS...........................................38

        Section 4.01       Certificate Account..............................................38

        Section 4.02       Distributions....................................................38

        Section 4.03       Statements to Certificateholders; Statements to the Rating
                          Agencies; Exchange Act Reporting.................................44

        Section 4.04       Distribution of Reports to the Trustee and the Company;
                          Advances by the Master Servicer..................................44

        Section 4.05       Allocation of Realized Losses....................................44

        Section 4.06       Reports of Foreclosures and Abandonment of Mortgaged
                          Property.........................................................46

        Section 4.07       Optional Purchase of Defaulted Mortgage Loans....................46

        Section 4.08       Surety Bond......................................................46

        Section 4.09       Yield Maintenance Agreement Reserve Fund.........................46

        Section 4.10       Carryover Shortfall Reserve Fund.................................47

ARTICLE V          THE CERTIFICATES.........................................................49

        Section 5.01       The Certificates.................................................49

        Section 5.02       Registration of Transfer and Exchange of Certificates............51

        Section 5.03       Mutilated, Destroyed, Lost or Stolen Certificates................53

        Section 5.04       Persons Deemed Owners............................................53

        Section 5.05       Appointment of Paying Agent......................................53

        Section 5.06       U.S.A. Patriot Act Compliance....................................53

ARTICLE VI         THE COMPANY AND THE MASTER SERVICER......................................54

ARTICLE VII        DEFAULT..................................................................55

ARTICLE VIII       CONCERNING THE TRUSTEE...................................................56

ARTICLE IX         TERMINATION..............................................................57

ARTICLE X          REMIC PROVISIONS.........................................................58

        Section 10.01      REMIC Administration.............................................58

        Section 10.02      Master Servicer; REMIC Administrator and Trustee
                          Indemnification..................................................58

        Section 10.03      Designation of REMICs............................................58

        Section 10.04      Distributions on the Uncertificated REMIC I Regular
                          Interests........................................................58

        Section 10.05      Compliance with Withholding Requirements.........................58

ARTICLE XI         MISCELLANEOUS PROVISIONS.................................................59

         Section 11.01      Amendment........................................................59

        Section 11.02      Recordation of Agreement;   Counterparts..........................59

        Section 11.03      Limitation on Rights of Certificateholders.......................59

        Section 11.04      Governing Law....................................................59

        Section 11.05      Notices..........................................................59

        Section 11.06      Required Notices to Rating Agency and Subservicer................60

        Section 11.07      Severability of Provisions.......................................60

        Section 11.08      Supplemental Provisions for Resecuritization.....................60

        Section 11.09      Allocation of Voting Rights......................................60

        Section 11.10      No Petition......................................................60

</TABLE>


<PAGE>

                                    EXHIBITS

Exhibit One:...Mortgage Loan Schedule

Exhibit Two:...Information to be Included in
        .......Monthly Distribution Date Statement

Exhibit Three:.Standard Terms of Pooling and
        .......Servicing Agreement dated as of August 1, 2004


<PAGE>


                                     APPENDIX

                        
        This is a Series   Supplement,   dated as of November 1, 2005 (the "Series
Supplement"), to the Standard Terms of Pooling and Servicing Agreement, dated as
of August 1, 2004 and   attached as Exhibit   Three hereto (the   "Standard   Terms"
and, together with this Series Supplement, the "Pooling and Servicing Agreement"
or   "Agreement"),   among   RESIDENTIAL   ACCREDIT   LOANS,   INC.,   as   the   company
(together with its permitted successors and assigns, the "Company"), RESIDENTIAL
FUNDING CORPORATION,   as master servicer (together with its permitted successors
and assigns,   the "Master Servicer"),   and DEUTSCHE BANK TRUST COMPANY AMERICAS,
as Trustee (together with its permitted successors and assigns, the "Trustee").

                             PRELIMINARY STATEMENT:

        The   Company    intends   to   sell   mortgage    asset-backed    pass-through
certificates   (collectively,   the   "Certificates"),   to be issued   hereunder   in
multiple   classes,   which in the aggregate   will evidence the entire   beneficial
ownership interest in the Trust Fund.

        The terms and provisions of the Standard   Terms are hereby   incorporated
by reference herein as though set forth in full herein. If any term or provision
contained   herein shall   conflict   with or be   inconsistent   with any   provision
contained   in the   Standard   Terms,   the terms   and   provisions   of this   Series
Supplement   shall govern.   All   capitalized   terms not otherwise   defined herein
shall   have the   meanings   set forth in the   Standard   Terms.   The   Pooling   and
Servicing Agreement shall be dated as of the date of this Series Supplement.

                                     REMIC I

        As provided   herein,   the REMIC   Administrator   will make an election to
treat the entire   segregated pool of assets described in the definition of REMIC
I (as defined   herein)   (including   the Mortgage Loans but excluding the Initial
Monthly   Payment   Fund,   the Yield   Maintenance   Agreement   Reserve Fund and the
Carryover   Shortfall   Reserve Fund),   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
Uncertificated   REMIC I Regular Interests will be "regular interests" in REMIC I
and the Class R-I   Certificates   will   represent   ownership of the sole class of
"residual interests" in REMIC I for purposes of the REMIC Provisions (as defined
herein).

        The   following   table   irrevocably   sets   forth   the   designation,    the
Uncertificated REMIC I Pass-Through Rate, the initial   Uncertificated   Principal
Balance,   and solely for   purposes of   satisfying   Treasury   regulation   Section
1.860G-1(a)(4)(iii),   the   "latest   possible   maturity   date,"   for   each of the
Uncertificated   REMIC I Regular Interests.   None of the   Uncertificated   REMIC I
Regular Interests will be certificated.



<PAGE>

<TABLE>
<CAPTION>


----------------------------- ----------------- ---------------------- ------------------------
        Designation             Uncertificated           Initial                  Latest
                                  REMIC I           Uncertificated       Possible Maturity(1)
                         Pass-Through Principal Balance
                                    Rate

----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
<S>                        <C>          <C>                  <C>                       <C> <C>
REMIC I Regular Interest Y1    Variable(2)                  $131,777.71      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
REMIC I Regular Interest Y2      Variable(2)                $266,710.41      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
REMIC I Regular Interest LT1     Variable(2)            $263,348,248.54      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
REMIC I Regular Interest LT2     Variable(2)                 $13,177.96      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
REMIC I Regular Interest LT3     Variable(2)                  $13,177.96      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
REMIC I Regular Interest LT4     Variable(2)                 $13,177.96      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
REMIC I Regular Interest LT5     Variable(2)            $532,994,087.32      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
REMIC I Regular Interest LT6     Variable(2)                 $26,671.05      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
REMIC I Regular Interest LT7     Variable(2)                 $26,671.05      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
REMIC I Regular Interest LT8     Variable(2)                 $26,671.05      December 25, 2045
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
  REMIC I Regular Interest       Variable(2)                 $13,177.95      December 25, 2045
            LT10
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
  REMIC I Regular Interest       Variable(2)                 $13,177.96      December 25, 2045
            LT11
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
  REMIC I Regular Interest       Variable(2)                  $13,177.96      December 25, 2045
            LT12
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
    REMIC I Regular Interest       Variable(2)                 $26,671.04      December 25, 2045
            LT14
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
  REMIC I Regular Interest       Variable(2)                 $26,671.05      December 25, 2045
            LT15
----------------------------- ----------------- ---------------------- ------------------------
----------------------------- ----------------- ---------------------- ------------------------
  REMIC I Regular Interest       Variable(2)                 $26,671.05      December 25, 2045
            LT16
----------------------------- ----------------- ---------------------- ------------------------
</TABLE>


<PAGE>


                                    REMIC II

        A segregated   pool of assets   consisting of the   Uncertificated   REMIC I
Regular   Interests will be designated as "REMIC II" and the REMIC   Administrator
will make a separate   REMIC   election   with   respect   thereto.   The Class   I-A-1
Certificates,   Class I-A-2 Certificates, Class II-A-1 Certificates, Class II-A-2
Certificates,   Class II-A-3   Certificates,   Class X-IO Certificates,   Class X-PO
Certificates,    Class   M-1   Certificates,   Class   M-2   Certificates,   Class   M-3
Certificates,   Class   B-1   Certificates,   Class B-2   Certificates   and Class B-3
Certificates   will   be   "regular   interests"   in   REMIC   II and the   Class   R-II
Certificates will represent ownership of the sole class of "residual   interests"
in REMIC II for purposes of the REMIC Provisions.

        The following table sets forth the designation, type, Pass-Through Rate,
aggregate Initial Certificate Principal Balance,   Maturity Date, initial ratings
and certain features for each Class of Certificates   comprising the interests in
the Trust Fund created hereunder.
<TABLE>
<CAPTION>

                            AGGREGATE            
                             INITIAL                                                               
                           CERTIFICATE
DESIGNATION    PASS-THROUGH   PRINCIPAL                        MATURITY       S&P/          MINIMUM         
                RATE          BALANCE        FEATURES(1)       DATE(2)    MOODY'S/FITCH   DENOMINATIONS(3)

<S>        <C>                <C>                                                        <C>       
Class I-A-1    Adjustable     $143,428,800    Super Senior/     December    AAA/Aaa/AAA     $25,000.00
              Rate(4)                       Adjustable Rate    25, 2045                 

Class I-A-2    Adjustable      $95,619,200        Senior        December    AAA/Aaa/AAA     $25,000.00
               Rate(4)                        Mezzanine/      25, 2045
                                           Adjustable Rate
Class II-A-1   Adjustable     $290,287,000    Super Senior/     December    AAA/Aaa/AAA     $25,000.00
              Rate(5)                      Adjustable Rate    25, 2045
Class II-A-2   Adjustable     $120,953,000        Senior         December    AAA/Aaa/AAA     $25,000.00
               Rate(5)                        Mezzanine/      25, 2045
                                          Adjustable Rate
Class II-A-3   Adjustable      $72,572,000        Senior        December    AAA/Aaa/AAA     $25,000.00
               Rate(5)                        Mezzanine/      25, 2045
                                          Adjustable Rate
Class X-IO     Variable              $0(6)   Senior/Interest    December    AAA/Aaa/AAA     $2,000,000
              Rate(6)                            Only/         25, 2045
                                          Variable Rate
Class             N/A                 $200   Senior/Component/ December    AAA/Aaa/AAA    (7)
X-PO(7)                                     Principal Only    25, 2045
Class R-I      Variable             $50.00   Senior/Residual/   December    AAA/Aaa/AAA    (9)
              Rate(8)                      Variable Rate      25, 2045
Class R-II     Variable             $50.00   Senior/Residual/   December    AAA/Aaa/AAA        (9)
                Rate(8)                      Variable Rate     25, 2045
Class M-1      Adjustable      $22,714,000      Mezzanine/      December    AA/Aa2/AA+      $25,000.00
              Rate(10)                     Adjustable Rate    25, 2045
Class M-2      Adjustable      $18,330,000      Mezzanine/      December    A+/Aa2/AA+     $250,000.00
              Rate(10)                     Adjustable Rate    25, 2045
Class M-3      Adjustable      $12,353,000      Mezzanine/      December   BBB/Baa2/BBB+   $250,000.00
              Rate(10)                     Adjustable Rate    25, 2045
Class B-1      Adjustable       $8,368,000     Subordinate/     December     BB/NA/BB      $250,000.00
              Rate(10)                     Adjustable Rate    25, 2045
Class B-2      Adjustable       $7,172,000     Subordinate/     December      B/NA/B       $250,000.00
              Rate(10)                     Adjustable Rate    25, 2045
Class B-3      Adjustable       $5,182,668     Subordinate/     December     NA/NA/NA      $250,000.00
              Rate(10)                      Adjustable Rate    25, 2045
</TABLE>

_________


(1)      Solely for   purposes   of   Section   1.860G-1(a)(4)(iii)   of the   Treasury
        regulations,   the Distribution   Date immediately   following the maturity
        date for the   Mortgage   Loan   with   the   latest   maturity   date has been
        designated    as   the    "latest    possible    maturity    date"    for   each
        Uncertificated   REMIC I Regular   Interest.   (2) Calculated in accordance
        with   the   definition   of   "Uncertificated   REMIC I   Pass-Through   Rate"
        herein. (1) The Certificates, other than the Class B-1, Class B-2, Class
        B-3 and Class R Certificates shall be Book-Entry Certificates. The Class
        B-1, Class B-2,   Class B-3,   Class R Certificates   shall be delivered to
        the holders thereof in physical form.

(2)      Solely for   purposes   of   Section   1.860G-1(a)(4)(iii)   of the   Treasury
        regulations,   the Distribution   Date immediately   following the maturity
        date for the   Mortgage   Loan   with   the   latest   maturity   date has been
        designated    as   the    "latest    possible    maturity    date"    for   each
        Uncertificated REMIC II Regular Interest.

                                                                    
(3)      The Certificates, other than the Class R Certificates, shall be issuable
        in minimum   dollar   denominations   as   indicated   above (by   Certificate
        Principal   Balance) and integral   multiples of $1 (or $1,000 in the case
        of the   Class   B-1,   Class B-2 and   Class   B-3   Certificates)   in excess
        thereof,   except that one Certificate of the Class B-3 Certificates that
        contains an uneven   multiple of $1,000 shall be issued in a denomination
        equal to the sum of the related minimum denomination set forth above and
        such uneven multiple for such Class or the sum of such   denomination and
        an integral multiple of $1,000.

(4)      The   Pass-Through   Rate on the Class I-A-1   Certificates and Class I-A-2
        Certificates   will be a per annum   rate   equal to the least of (i) LIBOR
        plus the related margin,   (ii) the weighted   average of the net mortgage
        rates on the group I loans and (iii) 11.000%.   The related margin on the
        Class I-A-1 Certificates and Class I-A-2 Certificates is initially equal
        to 0.260% and 0.400%, respectively.

(5)      The Pass-Through Rate on the Class II-A-1, Class II-A-2 and Class II-A-3
        Certificates   will be a per annum   rate   equal to the least of (i) LIBOR
        plus the related margin,   (ii) the weighted   average of the net mortgage
        rates on the group II loans and (iii) 11.000%. The related margin on the
        Class II-A-1,   Class II-A-1 and Class II-A-3   Certificates   is initially
        equal to 0.280%, 0.350% and 0.430%, respectively.

(6)      For the   purpose   of   calculating   interest   payments   on the Class X-IO
        Certificates, interest will accrue on a notional amount equal to the sum
        of the certificate   principal   balances of the Class A, Class M, Class B
        and Class X-PO   Certificates,   which is initially equal to $796,979,868.
        The pass-through rate on the Class X-IO Certificates will be a per annum
        rate equal to the excess, if any, of (a) the weighted average of the net
        mortgage   rates of the mortgage loans over (b) a per annum rate equal to
        the product of (1) interest   accrued on the Class A, Class M and Class B
        Certificates   for   such   distribution   date and (2) 12,   divided   by the
        aggregate certificate principal balance of the Class A, Class M, Class B
        and Class X-PO   Certificates   immediately   preceding   such   distribution
        date. The amount of interest accrued on the Class X-IO   Certificates for
        any   Distribution   Date will be the interest   accrued during the related
        Interest   Accrual   Period at the   pass-through   rate and on the notional
        amount described above,   reduced by the amount of Net Deferred   Interest
        allocated   to the Class X-IO   Certificates   and applied to increase   the
        balance of the Class X-PO   Certificates.   The   holders of the Class X-IO
        Certificates   will be entitled   to all   Prepayment   Charges   received on
        Prepayment   Charge   Loans,   and these   amounts will not be available for
        distribution on the other certificates.

                      For REMIC purposes,   the foregoing rate is equal to a rate
              per annum equal to the   percentage   equivalent of a fraction,   the
              numerator of which is the sum of the amounts   calculated   pursuant
              to clauses (1) through (10) below, and the denominator of which is
              the    aggregate    Uncertificated    Principal    Balances    of    the
              Uncertificated    REMIC   I   Regular   Interests.    For   purposes   of
              calculating the Pass-Through Rate for the Class X-IO Certificates,
              the numerator is equal to the sum of the following components:
                       (1) the Uncertificated REMIC I Pass-Through Rate for REMIC
              I Regular   Interest   LT1 minus the Class X-IO Group I Marker Rate,
              applied to a notional amount equal to the Uncertificated Principal
              Balance of REMIC I Regular Interest LT1;
                      (2) the Uncertificated REMIC I Pass-Through Rate for REMIC
              I Regular   Interest   LT2 minus the Class X-IO Group I Marker Rate,
              applied to a notional amount equal to the Uncertificated Principal
              Balance of REMIC I Regular Interest LT2;
                      (3) the Uncertificated REMIC I Pass-Through Rate for REMIC
              I Regular   Interest   LT4 minus twice the Class X-IO Group I Marker
              Rate,   applied to a notional   amount   equal to the   Uncertificated
              Principal Balance of REMIC I Regular Interest LT4;
                      (4) the Uncertificated REMIC I Pass-Through Rate for REMIC
              I Regular   Interest LT5 minus the Class X-IO Group II Marker Rate,
              applied to a notional amount equal to the Uncertificated Principal
              Balance of REMIC I Regular Interest LT5;
                      (5) the Uncertificated REMIC I Pass-Through Rate for REMIC
               I Regular   Interest LT6 minus the Class X-IO Group II Marker Rate,
              applied to a notional amount equal to the Uncertificated Principal
              Balance of REMIC I Regular Interest LT6;
                      (6) the Uncertificated REMIC I Pass-Through Rate for REMIC
              I Regular   Interest LT8 minus twice the Class X-IO Group II Marker
              Rate,   applied to a notional   amount   equal to the   Uncertificated
              Principal Balance of REMIC I Regular Interest LT8;
                      (7) the Uncertificated REMIC I Pass-Through Rate for REMIC
              I Regular   Interest LT10 minus the Class X-IO Group I Marker Rate,
              applied to a notional amount equal to the Uncertificated Principal
               Balance of REMIC I Regular Interest LT10;
                      (8) the Uncertificated REMIC I Pass-Through Rate for REMIC
              I Regular   Interest LT12 minus twice the Class X-IO Group I Marker
              Rate,   applied to a notional   amount   equal to the   Uncertificated
              Principal Balance of REMIC I Regular Interest LT12;
                      (9) the Uncertificated REMIC I Pass-Through Rate for REMIC
              I Regular Interest LT14 minus the Class X-IO Group II Marker Rate,
              applied to a notional amount equal to the Uncertificated Principal
              Balance of REMIC I Regular Interest LT14;
                      (10)   the   Uncertificated   REMIC I   Pass-Through   Rate for
              REMIC I Regular   Interest LT16 minus twice the Class X-IO Group II
              Marker    Rate,    applied   to   a   notional    amount   equal   to   the
              Uncertificated Principal Balance of REMIC I Regular Interest LT16;
                      (11)   the   Uncertificated   REMIC I   Pass-Through   Rate for
              REMIC I Regular   Interest   Y1 minus the Class   X-IO Group I Marker
              Rate,   applied to a notional   amount   equal to the   Uncertificated
              Principal Balance of REMIC I Regular Interest Y1; and
                      (12)   the   Uncertificated   REMIC I   Pass-Through   Rate for
              REMIC I Regular   Interest   Y2 minus the Class X-IO Group II Marker
              Rate, applied to a notional amount equal to the

Uncertificated Principal Balance of REMIC I Regular Interest Y2.
                                                                     
(7)      The Class X-PO   Certificates are comprised of two components:   the Class
        X-PO-I   Component   and the   Class   X-PO-II   Component.   The   certificate
        principal   balance of the Class X-PO   Certificates   will initially equal
        $200 and will increase in an amount by which each   component   increases.
        The Class X-PO-I   Component   and the Class X-PO-II   Component   will have
        certificate   principal   balances,   initially   equal to $100,   that   will
        increase in an amount   equal to net deferred   interest   from the related
        loan group that is allocated to the Class X-IO   Certificates.   The Class
        X-PO   Certificates   will not be entitled to interest on any amounts due.
        Distributions   of principal on the Class X-PO-I   Component will be based
        on collections from the group I loans and   distributions of principal on
        the Class X-PO-II   Component will be based on collections from the group
        II loans.   Each of the Class   X-PO   Certificates   shall be   issuable   in
        minimum   denominations   of not less   than a 0.01%   Percentage   Interest.
        Holders of the Class X-PO   Certificates   may not transfer the components
        separately.

                                                                     
        For REMIC purposes the Class X-PO Certificates shall be comprised of two
        REMIC II Regular Interests: the REMIC II Regular Interest X-PO-PO, which
        shall be entitled to payment of the $200   initial   principal   balance of
        the Class X-PO Certificates;   and the REMIC II Regular Interest X-PO-IO,
        which   shall   be   entitle   to   all   payments   of Net   Deferred   Interest
        allocated   to   the   Class   X-PO   Certificates.    Net   Deferred   Interest
        allocated to the Class XP Certificates as an increase in the certificate
        balance thereof shall for REMIC purposes   represent   interest accrued on
        the REMIC II Regular   Interest   XP-IO on a notional   amount equal to the
        aggregate   Uncertificated Principal Balances of the Uncertificated REMIC
        I   Regular   Interests   at a rate   per   annum   equal   to   the   percentage
        equivalent   of a   fraction,   the   numerator   of   which is the sum of the
        amounts   calculated   pursuant to clauses (1) through (10) below, and the
        denominator of which is the aggregate   Uncertificated Principal Balances
        of the   Uncertificated   REMIC   I   Regular   Interests.   For   purposes   of
        calculating the Pass-Through Rate for the Class X-PO   Certificates,   the
        numerator is equal to the sum of the following components:
                                                                         
(1)      the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest   LT1 minus the Class   X-PO   Group I Marker   Rate,   applied to a
        notional amount equal to the Uncertificated Principal Balance of REMIC I
        Regular Interest LT1;      
                
(2)      the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest   LT2 minus the Class   X-PO   Group I Marker   Rate,   applied to a
         notional amount equal to the Uncertificated Principal Balance of REMIC I
        Regular Interest LT2;
                                                                       
(3)      the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest LT4 minus twice the Class X-PO Group I Marker Rate,   applied to
        a notional amount equal to the Uncertificated Principal Balance of REMIC
        I Regular Interest LT4;
                                                                            
(4)      the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest   LT5 minus the Class   X-PO Group II Marker   Rate,   applied to a
        notional amount equal to the Uncertificated Principal Balance of REMIC I
        Regular Interest LT5;
                                                                           
(5)      the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest   LT6 minus the Class   X-PO Group II Marker   Rate,   applied to a
        notional amount equal to the Uncertificated Principal Balance of REMIC I
        Regular Interest LT6;
                                                                       
(6)      the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest LT8 minus twice the Class X-PO Group II Marker Rate, applied to
        a notional amount equal to the Uncertificated Principal Balance of REMIC
        I Regular Interest LT8;
                                                                          
(7)      the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest   LT10 minus the Class X-PO   Group I Marker   Rate,   applied to a
        notional amount equal to the Uncertificated Principal Balance of REMIC I
        Regular Interest LT10;
                                                                         
(8)      the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest LT12 minus twice the Class X-PO Group I Marker Rate, applied to
        a notional amount equal to the Uncertificated Principal Balance of REMIC
        I Regular Interest LT12;
                                                                     
(9)      the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest   LT14 minus the Class X-PO Group II Marker   Rate,   applied to a
        notional amount equal to the Uncertificated Principal Balance of REMIC I
        Regular Interest LT14;
                                                                      
(10)     the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest   LT16 minus twice the Class X-PO Group II Marker Rate,   applied
        to a notional amount equal to the   Uncertificated   Principal   Balance of
        REMIC I Regular Interest LT16;
                                                                     
(11)     the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest   Y1 minus the Class   X-PO   Group I Marker   Rate,   applied   to a
        notional amount equal to the Uncertificated Principal Balance of REMIC I
        Regular Interest Y1; and
                                                                   
(12)     the   Uncertificated   REMIC I   Pass-Through   Rate   for   REMIC   I   Regular
        Interest   Y2 minus the Class   X-PO   Group II Marker   Rate,   applied to a
        notional amount equal to the Uncertificated Principal Balance of REMIC I
        Regular   Interest   Y2.  

(8)      The   pass-through   rate on the Class R Certificates   will be a per annum
        rate   equal to the   weighted   average of the net   mortgage   rates on the
        group I loans.   The   pass-through   rate for the Class R Certificates   is
         initially equal to approximately 3.608%.
                                                                      
(9)      Each   class of the Class R   Certificates   shall be   issuable   in minimum
        denominations   of not less   than a 20%   Percentage   Interest;   provided,
        however,   that one Class R Certificate of each class will be issuable to
        Residential Funding as "tax matters person" pursuant to Section 10.01(c)
        and (e) in a minimum denomination   representing a Percentage Interest of
        not   less   than   0.01%.   (10)   The   Pass-Through   Rate   on the   Class   M
        Certificates and Class B Certificates   will be a per annum rate equal to
        the lessor of (i) LIBOR plus the   related   margin and (ii) the   weighted
        average of the weighted average net mortgage rates of the mortgage loans
        in each loan group,   weighted   on the basis of the   related   subordinate
        component   for each loan   group.   The   related   margin on the Class M-1,
        Class M-2, Class M-3, Class B-1, Class B-2 and Class B-3 Certificates is
        initially equal to 0.700%,   1.200%,   1.750%,   1.750%, 1.750% and 1.750%,
        respectively.


        The Mortgage Loans have an aggregate principal balance as of the Cut-off
Date of $796,979,968.


<PAGE>


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

ARTICLE I

                                   DEFINITIONS

Section 1.01...Definitions.

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

        Accrued Certificate Interest: With respect to each Distribution Date, as
to any Class of   Certificates,   interest   accrued   during the   related   Interest
Accrual Period at the related   Pass-Through   Rate on the   Certificate   Principal
Balance or Notional Amount thereof   immediately prior to such Distribution Date.
In each case Accrued   Certificate   Interest on any Class of Certificates will be
reduced by a portion of the amount of:

        (i)     Prepayment   Interest   Shortfalls   on all   Mortgage   Loans (to the
               extent   not   offset by the   Master   Servicer   with a   payment   of
               Compensating Interest as provided in Section 4.01),

         (ii)   the interest   portion   (adjusted to the Net Mortgage Rate (or the
               Modified   Net   Mortgage   Rate in the case of a Modified   Mortgage
               Loan)) of Realized   Losses on all   Mortgage   Loans not   allocated
               solely to one or more specific   Classes of Certificates   pursuant
               to Section 4.05,

        (iii)   any   Net   Deferred   Interest   on   the   Mortgage   Loans   for   that
               Distribution Date; and

        (iv)    any other interest   shortfalls   not covered by the   subordination
               provided by the Class M   Certificates   and Class B   Certificates,
               including   interest   that is not   collectible   from the Mortgagor
               pursuant   to the   Servicemembers   Civil   Relief   Act,   or similar
               legislation or regulations as in effect from time to time.

        The Group I Senior   Percentage of the reductions under clauses (i), (ii)
and (iv) in the case of the Group I Loans will be allocated among the holders of
the Class I-A-1,   Class I-A-II and Class X-IO   Certificates in proportion to the
respective amounts of Accrued Certificate   Interest that would have been payable
from the Group I Loans on that Distribution   Date absent these   reductions.   The
Group II Senior Percentage of the reductions under clauses (i), (ii) and (iv) in
the case of the Group II Loans will be allocated   among the holders of the Class
II-A-1,   Class II-A-2, Class II-A-3 and Class X-IO Certificates in proportion to
the   respective   amounts of Accrued   Certificate   Interest   that would have been
payable   from   the   Group   II   Loans   on that   Distribution   Date   absent   these
reductions.   The   remainder of the   reductions   under clauses (i), (ii) and (iv)
will be   allocated   among the   holders of the Class M   Certificates   and Class B
Certificates   in proportion   to the   respective   amounts of Accrued   Certificate
Interest   that would have been   payable on that   Distribution   Date absent these
reductions.   In   addition to that   portion of the   reductions   described   in the
preceding   sentence that are allocated to any Class of Class B   Certificates   or
any Class of Class M Certificates, Accrued Certificate Interest on such Class of
Class B Certificates   or such Class of Class M   Certificates   will be reduced by
the interest portion (adjusted to the Net Mortgage Rate) of Realized Losses that
are   allocated   solely to such   Class of Class B   Certificates   or such Class of
Class M   Certificates   pursuant to Section 4.05.   Reductions   under clause (iii)
above,   for Net   Deferred   Interest,   will be   allocated as described in Section
4.02(m)

        Accrued   Certificate   Interest   on the   Class   A,   Class   M and   Class B
Certificates   is calculated on the basis of a 360-day year and the actual number
of days that   elapsed   during   the   related   Interest   Accrual   Period.   Accrued
Certificate   Interest on the Class X-IO Certificates and Class R Certificates is
calculated on the basis of a 360-day year divided into twelve 30-day months.

        Adjusted   Rate Cap:   For the Class   I-A-1   Certificates   and Class I-A-2
Certificates, the Adjusted Rate Cap shall equal the related Net WAC Cap for that
Distribution   Date,   computed for this purpose by first reducing the Group I Net
WAC Rate by a per annum   rate equal to (i) the   product of (a) the Net   Deferred
Interest,   if any, on the Group I Loans for that   Distribution   Date and (b) 12,
divided   by (ii) the   aggregate   Stated   Principal   Balance of the Group I Loans
immediately prior to such Distribution Date.

        For the Class II-A-1,   Class II-A-2 and Class II-A-3   Certificates,   the
Adjusted   Rate Cap shall   equal the   related   Net WAC Cap for that   Distribution
Date, computed for this purpose by first reducing the Group II Net WAC Rate by a
per annum rate equal to (i) the   product of (a) the Net   Deferred   Interest,   if
any,   on the Group II Loans for that   Distribution   Date and (b) 12,   divided by
(ii) the aggregate   Stated Principal   Balance of the Group II Loans   immediately
prior to such Distribution Date.

        For the Class M Certificates and the Class B Certificates,   the Adjusted
Rate   Cap   shall   equal   the   related   Net WAC Cap for that   Distribution   Date,
computed for this purpose by first reducing each of the Group I Net WAC Rate and
Group II Net WAC Rate by a per annum   rate   equal to (i) the   product of (a) the
Net   Deferred   Interest,   if   any,   on   the   related   Mortgage   Loans   for   that
Distribution   Date and (b) 12,   divided by (ii) the aggregate   Stated   Principal
Balance of the related   Mortgage Loans   immediately   prior to such   Distribution
Date.

        For the Class X-IO Certificates and any Distribution   Date, the Adjusted
Rate Cap shall equal the   Pass-Through   Rate for such Class,   computed   for this
purpose by (i) reducing the weighted   average of the Net Mortgage Rates by a per
annum rate   equal to the   quotient   of (a) the Net   Deferred   Interest   for such
Distribution   Date e multiplied   by 12, and (b) the aggregate   Stated   Principal
Balance of the Mortgage Loans immediately   prior to such Distribution   Date, and
(ii) calculating the interest accrued on the certificates   (other than the Class
X-IO   Certificates)   by   substituting   the related   "Adjusted   Rate Cap" for the
related "Net WAC Cap" in the   definition   of   Pass-Through   Rate for each of the
Class A, Class M and Class B Certificates.

        Adjustment   Date: As to each Mortgage   Loan,   each date set forth in the
related   Mortgage   Note on   which an   adjustment   to the   interest   rate on such
Mortgage Loan becomes effective.

        Available   Distribution   Amount:   As to any   Distribution   Date and Loan
Group, an amount equal to (a) the sum of (i) the amount relating to the Mortgage
Loans on deposit in the   Custodial   Account as of the close of   business   on the
immediately preceding   Determination Date, including any Subsequent   Recoveries,
and   amounts    deposited   in   the   Custodial   Account   in   connection   with   the
substitution   of Qualified   Substitute   Mortgage   Loans,   (ii) the amount of any
Advance made on the   immediately   preceding   Certificate   Account   Deposit Date,
(iii) any amount deposited in the Certificate Account on the related Certificate
Account Deposit Date pursuant to the second paragraph of Section   3.12(a),   (iv)
any amount   deposited in the Certificate   Account   pursuant to Section 4.07, (v)
any amount   that the Master   Servicer   is not   permitted   to   withdraw   from the
Custodial Account or the Certificate   Account pursuant to Section 3.16(e),   (vi)
any amount   received   by the   Trustee   pursuant to the Surety Bond in respect of
such   Distribution Date and (vii) the proceeds of any Pledged Assets received by
the Master   Servicer,   reduced by (b) the sum as of the close of business on the
immediately   preceding   Determination   Date of (v) any   payments or   collections
consisting of Prepayment Charges on the Mortgage Loans that were received during
the related Prepayment Period; (w) aggregate Foreclosure Profits, (x) the Amount
Held for Future   Distribution,   and (y) amounts permitted to be withdrawn by the
Master   Servicer   from the   Custodial   Account in respect of the Mortgage   Loans
pursuant to clauses   (ii)-(x),   inclusive   of Section   3.10(a),   in each case in
respect of the related Loan Group.

        Calendar   Quarter:   A   Calendar   Quarter   shall   consist   of   one of the
following   time periods in any given year:   January 1 through   March 31, April 1
through June 30, July 1 through September 30, and October 1 through December 31.

        Carryover   Shortfall Amount: For any Distribution Date and for the Class
A   Certificates,   an amount equal to the sum of: (i) the excess,   if any, of (a)
the amount of Accrued Certificate Interest that would have accrued on such class
at a Pass-Through Rate equal to LIBOR plus the related   Pass-Through Margin (but
not more than   11.000%   per annum)   over (b) the   amount of Accrued   Certificate
Interest   on such   class for such   Distribution   Date (in each case prior to any
reduction for Net Deferred   Interest),   (ii) the portion of the amount described
in clause (i) above remaining   unpaid from prior   Distribution   Dates; and (iii)
one month's   interest at the rate described in clause (i)(a) above on the amount
described in clause (ii) above.   For any   Distribution   Date and for the Class M
Certificates   and Class B   Certificates,   an amount equal to the sum of: (i) the
excess,   if any, of (a) the amount of Accrued   Certificate   Interest   that would
have   accrued   on such   class at a   Pass-Through   Rate   equal to LIBOR   plus the
related   Pass-Through   Margin (but not more than Net Maximum   Rate Cap) over (b)
the amount of Accrued   Certificate   Interest on such class for such distribution
date (in each case prior to any reduction for Net Deferred   Interest),   (ii) the
portion of the amount   described in clause (i) above remaining unpaid from prior
Distribution   Dates;   and (iii) one month's   interest at the rate   described   in
clause (i)(a) above on the amount described in clause (ii) above.

        Carryover   Shortfall   Reserve Fund: The reserve fund created pursuant to
Section 4.10.

        Carryover Shortfall Reserve Fund Amount:   $650,000.

        Certificate:   Any   Class   A,   Class   X,   Class   M,   Class   B or   Class R
Certificate.

        Certificate   Account:   The   separate   account or   accounts   created   and
maintained   pursuant   to Section   4.01 of the   Standard   Terms,   which   shall be
entitled   "Deutsche Bank Trust Company   Americas,   as trustee,   in trust for the
registered holders of Residential   Accredit Loans, Inc.,   Mortgage   Asset-Backed
Pass-Through   Certificates,   Series   2005-QO4"   and   which   must be an   Eligible
Account.

        Certificate   Group:   With   respect to (i) Loan Group I, the Class I-A-1,
Class I-A-2 and Class R   Certificates   and (ii) Loan Group II, the Class II-A-1,
Class II-A-2 and Class II-A-3 Certificates.

        Certificate Policy:   None.

        Certificate   Principal Balance: With respect to each Certificate (or, in
the   case of a Class   X-PO   Certificate,   the   Class   X-PO-I   or   Class   X-PO-II
Component thereof), on any date of determination, an amount equal to:

         (i)    the Initial Certificate   Principal Balance of such Certificate as
               specified on the face thereof, plus

         (ii)   any   Subsequent   Recoveries   added to the   Certificate   Principal
               Balance of such Certificate pursuant to Section 4.02, plus

        (iii)   an amount equal to the aggregate Net Deferred   Interest   added to
               the Certificate   Principal   Balance thereof prior to such date of
               determination, minus

         (iv)   the   sum   of   (x)   the    aggregate   of   all   amounts    previously
               distributed   with respect to such Certificate (or any predecessor
               Certificate)   or Component and applied to reduce the   Certificate
               Principal Balance thereof pursuant to Section 4.02(a) and (y) the
               aggregate of all   reductions   in   Certificate   Principal   Balance
               deemed to have occurred in connection   with Realized Losses which
               were previously allocated to such Certificate (or any predecessor
               Certificate) or Component pursuant to Section 4.05;

provided,   that the   Certificate   Principal   Balance of each   Certificate of the
Class of   Subordinate   Certificates   with the Lowest   Priority at any given time
shall   be   further   reduced   by an   amount   equal   to   the   Percentage   Interest
represented   by such   Certificate   multiplied by the excess,   if any, of (A) the
then aggregate Certificate Principal Balance of all Classes of Certificates then
outstanding over (B) the then aggregate Stated Principal Balance of the Mortgage
Loans.

In the case of any Class of Certificates other than the Class X-IO Certificates,
Net Deferred Interest   allocated to such Certificates will be added as principal
to the outstanding   Certificate Principal Balance of such Class of Certificates.
With respect to the Class X-IO Certificates,   Net Deferred Interest allocated to
the X-IO Certificates shall be added as principal to the outstanding Certificate
Principal Balance of the Class X-PO-I or Class X-PO-II Component, as applicable.

        Class A   Certificate:   Any one of the Class I-A-1,   Class   I-A-2,   Class
II-A-1,   Class   II-A-2 and Class A-3   Certificates   executed   by the Trustee and
authenticated by the Certificate Registrar   substantially in the form annexed to
the Standard Terms as Exhibit A.

        Class M   Certificate:   Any one of the Class M-1, Class M-2 and Class M-3
Certificates.

        Class R   Certificate:   Any one of the Class R-I   Certificates   and Class
R-II Certificates.

        Class R-I Certificate: Any one of the Class R-I Certificates executed by
the Trustee and authenticated by the Certificate Registrar   substantially in the
form   annexed to the   Standard   Terms as Exhibit D and   evidencing   an   interest
designated   as a   "residual   interest"   in   REMIC I for   purposes   of the   REMIC
Provisions.

         Class R-II Certificate:   Any one of the Class R-II Certificates executed
by the Trustee and authenticated by the Certificate   Registrar   substantially in
the form annexed to the Standard   Terms as Exhibit D and   evidencing an interest
designated   as a   "residual   interest"   in REMIC II for   purposes   of the   REMIC
Provisions.

        Class X-IO Certificate:   Any one of the Class X-IO Certificates.

        Class X-PO Certificates:   Any one of the Class X-PO Certificates.

        Class X-PO-I Component: Solely for purposes of calculating distributions
of principal and the allocation of Realized   Losses on the Mortgage   Loans,   the
Class X-PO-I component of the Class X-PO Certificates.   The principal balance of
the Class   X-PO-I   Component   will   initially   equal $100 and will   increase   in
accordance with the amount of Net Deferred Interest   allocated to the Class X-IO
Certificates with respect to Loan Group I.

        Class    X-PO-II    Component:    Solely   for    purposes    of    calculating
distributions of principal and the allocation of Realized Losses on the Mortgage
Loans, the Class X-PO-II component of the Class X-PO Certificates. The principal
balance   of the Class   X-PO-II   Component   will   initially   equal   $100 and will
increase in accordance with the amount of Net Deferred Interest allocated to the
Class X-IO Certificates with respect to Loan Group II.

        Closing Date:   November 29, 2005.

        Corporate Trust Office:   The principal office of the Trustee at which at
any particular   time its corporate trust business with respect to this Agreement
shall   be   administered,   which   office   at the   date of the   execution   of this
instrument   is   located at 1761 East St.   Andrew   Place,   Santa Ana,   California
92705-4934, Attention: Residential Funding Corporation Series 2005-QO4.

        Cut-off Date:   November 1, 2005.

        Deferred Interest: The amount of interest which is deferred and added to
the principal balance of a Mortgage Loan due to negative amortization.

        Determination   Date: With respect to any   Distribution   Date, the second
Business Day prior to such Distribution Date.

        Due Period:   With respect to each Distribution   Date, the calendar month
in which such Distribution Date occurs.

        Eligible   Account:   An   account   that   is   any   of   the   following:   (i)
maintained with a depository institution the debt obligations of which have been
rated by each Rating Agency in its highest rating available,   or (ii) an account
or accounts in a depository institution in which such accounts are fully insured
to the limits established by the FDIC, provided that any deposits not so insured
shall, to the extent   acceptable to each Rating Agency, as evidenced in writing,
be maintained such that (as evidenced by an Opinion of Counsel   delivered to the
Trustee and each Rating Agency) the registered   Holders of   Certificates   have a
claim with   respect to the funds in such account or a perfected   first   security
interest    against   any    collateral    (which   shall   be   limited   to   Permitted
Investments)   securing   such   funds   that is   superior   to   claims   of any other
depositors or creditors of the depository institution with which such account is
maintained,   or (iii) in the case of the Custodial   Account,   a trust account or
accounts   maintained in the corporate   trust   department of U.S. Bank,   National
Association,   or (iv) in the case of the Certificate Account, a trust account or
accounts   maintained in the corporate   trust division of the Trustee,   or (v) an
account or accounts of a depository institution acceptable to each Rating Agency
(as   evidenced in writing by each Rating   Agency that use of any such account as
the   Custodial   Account or the   Certificate   Account   will not reduce the rating
assigned   to   any   Class   of   Certificates   by   such   Rating   Agency   below   the
then-current rating assigned to such Certificates by such Rating Agency).

        Group   I   Certificates:   The   Class   I-A-1,   Class   I-A-2   and   Class   R
Certificates   executed   by the   Trustee   and   authenticated   by the   Certificate
Registrar   substantially in the form annexed to the Standard Terms as Exhibit A,
each such   Certificate   (other   than the   Class R   Certificates)   evidencing   an
interest   designated   as a "regular   interest"   in REMIC III for purposes of the
REMIC Provisions and representing an undivided interest in Loan Group I.

        Group I Loans: The Mortgage Loans designated as Group I Loans in Exhibit
One.

        Group I Net WAC Rate or   Group   II Net WAC   Rate:   With   respect   to any
Distribution Date and Loan Group, the weighted average of the Net Mortgage Rates
of the   Mortgage   Loans in the related   Loan Group as of the end of the calendar
month immediately preceding the month in which such Distribution Date occurs.

         Group I Senior   Percentage:   As of each Distribution Date, the lesser of
100% and a fraction,   expressed as a   percentage,   the numerator of which is the
aggregate   Certificate   Principal   Balance of the Group I   Certificates   and the
Class   X-PO-I   Component   immediately   prior to such   Distribution   Date and the
denominator   of which is the aggregate   Stated   Principal   Balance of all of the
Mortgage Loans (or related REO Properties) in Loan Group I immediately   prior to
such Distribution Date.

         Group I Senior   Principal   Distribution   Amount:   As to any Distribution
Date, the lesser of (a) the balance of the Available Distribution Amount related
to Loan   Group I   remaining   after the   distribution   therefrom   of all   amounts
required to be distributed   therefrom pursuant to Section   4.02(a)(i)(U) of this
Series   Supplement,   and (b) the sum of the amounts   required to be   distributed
therefrom to the Group I   Certificateholders   on such Distribution Date pursuant
to Section 4.02(a)(ii) and Section 4.02(a)(xiv).

        Group I Subordinate Component: On any date of determination,   the excess
of the aggregate Stated   Principal   Balance of the Group I Loans as of such date
over the aggregate Certificate Principal Balance of the Group I Certificates and
the Class X-PO-I Component then outstanding.

        Group II Certificates:   The Class II-A-1,   Class II-A-2 and Class II-A-3
Certificates   executed   by the   Trustee   and   authenticated   by the   Certificate
Registrar   substantially in the form annexed to the Standard Terms as Exhibit A,
each such Certificate   evidencing an interest designated as a "regular interest"
in REMIC III for purposes of the REMIC   Provisions and representing an undivided
interest in Loan Group II.

        Group II   Loans:   The   Mortgage   Loans   designated   as Group II Loans in
Exhibit One.

        Group II Senior Percentage:   As of each Distribution Date, the lesser of
100% and a fraction,   expressed as a   percentage,   the numerator of which is the
aggregate   Certificate   Principal   Balance of the Group II Certificates   and the
Class X-PO-II   Component   immediately   prior to such   Distribution   Date and the
denominator   of which is the aggregate   Stated   Principal   Balance of all of the
Mortgage Loans (or related REO Properties) in Loan Group II immediately prior to
such Distribution Date.

        Group II Senior Principal   Distribution   Amount:   As to any Distribution
Date, the lesser of (a) the balance of the Available Distribution Amount related
to Loan Group II   remaining   after the   distribution   therefrom   of all   amounts
required to be distributed   therefrom pursuant to Section   4.02(a)(i)(V) of this
Series   Supplement,   and (b) the sum of the amounts   required to be   distributed
therefrom to the Group II   Certificateholders on such Distribution Date pursuant
to Section 4.02(a)(ii) and Section 4.02(a)(xiv).

        Group II Subordinate Component: On any date of determination, the excess
of the aggregate Stated Principal   Balance of the Group II Loans as of such date
over the aggregate   Certificate   Principal   Balance of the Group II Certificates
and the Class X-PO-II Component then outstanding.

        Interest Accrual Period:   With respect to the Class X-IO, Class X-PO and
Class R Certificates and any Distribution Date, the calendar month preceding the
month in which such Distribution Date occurs. With respect to the Class A, Class
M and Class B Certificates   and any   Distribution   Date, the period beginning on
the prior Distribution Date (or, in the case of the first Distribution Date, the
Closing Date) and ending on the day immediately preceding the Distribution Date.

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

        Initial   Monthly   Payment Fund: $926   representing   scheduled   principal
amortization   and interest at the Net Mortgage Rate payable   during the December
2005 Due Period,   for those   Mortgage   Loans for which the   Trustee   will not be
entitled to receive such payment.

        Initial   Notional Amount:   With respect to the Class X-IO   Certificates,
$796,979,868.

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

      Class M-1:   2.85%              Class B-1:   1.05%
      Class M-2:   2.30%              Class B-2:   0.90%
      Class M-3:   1.55%              Class B-3: 0.65%



        Loan Group:   Loan Group I or Loan Group II.

        Loan   Group I: The   group of   Mortgage   Loans   comprised   of the Group I
Loans.

        Loan Group II: The group of   Mortgage   Loans   comprised   of the Group II
Loans.

        LIBOR: With respect to any Distribution Date, the arithmetic mean of the
London   interbank   offered rate quotations for one-month U.S.   Dollar   deposits,
expressed on a per annum basis, determined in accordance with Section 1.03.

        LIBOR Certificates:   The Class A, Class M and Class B Certificates.

        Marker   Rate:   With   respect   to the   Class   X-IO   Certificates   and any
Distribution   Date, in relation to REMIC I Regular Interests LT1, LT2, LT3, LT4,
LT10,   LT11,   LT12 and Y1, a per annum rate equal to two (2) times the   weighted
average of the   Uncertificated   REMIC I   Pass-Through   Rates for REMIC I Regular
Interest   LT2 and REMIC I Regular   Interest   LT3 (the "Class X-IO Group I Marker
Rate").   With respect to the Class X-IO Certificates and any Distribution   Date,
in relation to REMIC I Regular   Interests LT5, LT6, LT7, LT8, LT14,   LT15,   LT16
and Y2, a per annum   rate   equal to two (2) times the   weighted   average   of the
Uncertificated   REMIC I Pass-Through   Rates for REMIC I Regular Interest LT6 and
REMIC I Regular   Interest   LT7 (the   "Class   X-IO Group II Marker   Rate").   With
respect to the Class X-PO Certificates and any Distribution Date, in relation to
REMIC I Regular   Interests   LT1, LT2, LT3, LT4, LT10,   LT11,   LT12 and Y1, a per
annum rate   equal to two (2) times the   weighted   average of the   Uncertificated
REMIC I Pass-Through Rates for REMIC I Regular Interest LT10 and REMIC I Regular
Interest LT11 (the "Class X-PO Group I Marker Rate").   With respect to the Class
X-PO   Certificates   and any   Distribution   Date,   in relation to REMIC I Regular
Interests LT5, LT6, LT7, LT8, LT14, LT15, LT16 and Y2, a per annum rate equal to
two (2) times the weighted   average of the   Uncertificated   REMIC I Pass-Through
Rates for REMIC I Regular   Interest LT14 and REMIC I Regular   Interest LT15 (the
"Class X-PO Group II Marker Rate").

        Maturity Date:   December 25, 2045,   the   Distribution   Date   immediately
following the latest scheduled maturity date of any Mortgage Loan.

        Maximum   Mortgage   Rate: As to any Mortgage   Loan, the rate indicated in
Exhibit One hereto as the "NOTE   CEILING,"   which rate is the   maximum   interest
rate that may be applicable to such Mortgage Loan at any time during the life of
such Mortgage Loan.

        Maximum   Net   Mortgage   Rate:   As to any   Mortgage   Loan and any date of
determination,   the Maximum   Mortgage   Rate for such Mortgage Loan minus the per
annum rate at which the Servicing Fee is calculated.

        Minimum   Mortgage   Rate: As to any Mortgage Loan, the greater of (i) the
Note Margin for such   Mortgage   Loan and (ii) the rate   indicated in Exhibit One
hereto as the "NOTE FLOOR" for such Mortgage Loan,   which rate may be applicable
to such Mortgage Loan at any time during the life of such Mortgage Loan.

        Mortgage Loan Schedule: The list or lists of the Mortgage Loans attached
hereto as Exhibit One (as amended   from time to time to reflect the   addition of
Qualified   Substitute   Mortgage Loans),   which list or lists shall set forth the
following information as to each Mortgage Loan in the related Loan Group:

(a) the Mortgage Loan identifying number ("RFC LOAN #");

(b) the maturity of the Mortgage Note ("MATURITY DATE");

(c) the Mortgage Rate ("ORIG RATE");

(d) the Subservicer pass-through rate ("CURR NET");

(e) the Net Mortgage Rate ("NET MTG RT");

(f) [RESERVED];

(g) the initial   scheduled   monthly   payment of principal,   if any, and interest
("ORIGINAL P & I");

(h) the Cut-off Date Principal Balance ("PRINCIPAL BAL");

(i) the Loan-to-Value Ratio at origination ("LTV");

(j) the rate at which the Subservicing Fee accrues   ("SUBSERV FEE") and at which
the Servicing Fee accrues ("MSTR SERV FEE");

(k) a code "T," "BT" or "CT" under the column "LN FEATURE,"   indicating that the
Mortgage Loan is secured by a second or vacation residence;

(l) a code "N" under the column "OCCP CODE,"   indicating   that the Mortgage Loan
is secured by a non-owner occupied residence;

(m) whether such Mortgage Loan constitutes a Group I Loan or a Group II Loan;

(n) the Maximum Mortgage Rate ("NOTE CEILING");

(o) the maximum Adjusted Mortgage Rate ("NET CEILING");

(p) the Note Margin for the ("NOTE MARGIN"); and

(q) the first Adjustment Date after the Cut-off Date ("NXT INT CHG DT").

Such schedule may consist of multiple reports that collectively set forth all of
the information required.

        Mortgage   Rate: As to any Mortgage   Loan, the interest rate borne by the
related   Mortgage   Note,   or any   modification   thereto   other than a   Servicing
Modification.   The   Mortgage   Rate on the   Mortgage   Loans   will   adjust on each
Adjustment Date to equal the sum (rounded to the nearest   multiple of one-eighth
of one percent   (0.125%) or up to the nearest   one-eighth of one percent,   which
are indicated by a "U" on Exhibit One hereto, except in the case of the Mortgage
Loans   indicated   by an "X" on   Exhibit   One   hereto   under   the   heading   "NOTE
METHOD"), of the related Index plus the Note Margin, in each case subject to the
applicable   Initial Rate Cap,   Periodic Cap,   Maximum   Mortgage Rate and Minimum
Mortgage Rate.

        Net Deferred Interest:   On any Distribution   Date,   Deferred Interest on
the Mortgage Loans during the related Due Period net of Principal Prepayments in
full, partial Principal   Prepayments,   Liquidation Proceeds and amounts received
pursuant   to Section   2.04 and 4.07,   in that order,   included in the   Available
Distribution   Amount for such   Distribution Date and available to make principal
distributions on the Certificates on that Distribution Date.

        Net   Maximum   Rate Cap:   For any   Distribution   Date and for the Class M
Certificates   and   Class B   Certificates,   the   Net   WAC   Cap   for   the   Class M
Certificates   and Class B   Certificates,   computed   for this purpose by assuming
that each Mortgage Loan accrued interest at its maximum loan rate.

        Net   Mortgage   Rate:   As to each   Mortgage   Loan,   a per   annum   rate of
interest   equal to the Adjusted   Mortgage   Rate less the per annum rate at which
the   Servicing   Fee is   calculated;   provided   that,   (i) the Net Mortgage   Rate
becoming   effective on any Adjustment Date shall not be greater or less than the
Net Mortgage Rate   immediately   prior to such   Adjustment Date plus or minus the
Initial Rate Cap or Periodic Cap   applicable   to such Mortgage Loan and (ii) the
Net   Mortgage   Rate for any   Mortgage   Loan shall not exceed a rate equal to the
Maximum Net Mortgage Rate for such Mortgage Loan.

        Net WAC   Cap:   For   any   Distribution   Date   and   for   the   Class   I-A-1
Certificates and Class I-A-2   Certificates,   the Group I Net WAC Rate multiplied
by a fraction the numerator of which is 30 and the   denominator   of which is the
actual   number   of   days   in   the   related   Interest   Accrual   Period   for   such
Certificates.

        For any   Distribution   Date and for the Class   II-A-1,   Class II-A-2 and
Class II-A-3   Certificates,   the Group II Net WAC Rate   multiplied by a fraction
the numerator of which is 30 and the   denominator   of which is the actual number
of days in the related Interest Accrual Period for such Certificates.

        For any   Distribution   Date and for the Class M Certificates and Class B
Certificates,   the weighted average of the Group I Net WAC Rate and the Group II
Net WAC Rate,   weighted on the basis of the related   Subordinate   Component   for
each Loan Group,   multiplied   by a fraction the numerator of which is 30 and the
denominator   of which   is the   actual   number   of days in the   related   Interest
Accrual Period for such Certificates.

        Net WAC Rate:   With respect to any   Distribution   Date, a per annum rate
equal to the weighted   average of the Net Mortgage   Rates of the Mortgage   Loans
weighted on the basis of the respective   Stated   Principal   Balance of each such
Mortgage   Loan as of the   beginning   of the related   Due   Period,   using the Net
Mortgage Rates in effect for the scheduled   payments due on those Mortgage Loans
during such Due Period.

        Note Margin: As to each Mortgage Loan, the fixed percentage set forth in
the   related   Mortgage   Note and   indicated   in Exhibit   One hereto as the "NOTE
MARGIN," which   percentage is added to the related Index on each Adjustment Date
to determine   (subject to rounding in accordance with the related Mortgage Note,
the Initial   Rate Cap,   the   Periodic   Cap,   the Maximum   Mortgage   Rate and the
Minimum Mortgage Rate) the interest rate to be borne by such Mortgage Loan until
the next Adjustment Date.

        Notional Amount: As of any Distribution   Date, with respect to the Class
X-IO Certificates,   an amount equal to the Certificate   Principal Balance of the
Class I-A-1, Class I-A-2, Class II-A-1,   Class II-A-2, Class II-A-3, Class X-PO,
Class M and Class B Certificates immediately prior to such date.

        Optional   Termination   Date:   Any   Distribution   Date on which   the Pool
Stated Principal Balance,   prior to giving effect to distributions to be made on
such   Distribution   Date, is less than ten percent of the Cut-off Date Principal
Balance of the Mortgage Loans.

        Pass-Through Margin: With respect each Distribution Date, as follows:

                                            (1)                   (2)    
               Class I-A-1                   0.260%         0.520%
               Class I-A-2                   0.400%         0.800%
               Class II-A-1                  0.280%         0.560%
               Class II-A-2                   0.350%         0.700%
               Class II-A-3                  0.430%         0.860%
               Class M-1                     0.700%         1.050%
               Class M-2                     1.200%         1.800%
               Class M-3                      1.750%         2.625%
               Class B-1                     1.750%         2.625%
               Class B-2                     1.750%         2.625%
               Class B-3                     1.750%         2.625%

               (1) For any Interest   Accrual Period occurring on or prior to the
               first   Distribution   Date following the first   possible   Optional
               Termination Date.

               (2) For each other Interest Accrual Period.

        Pass-Through Rate:

o           With respect to the Class A Certificates, the least of (i) LIBOR plus
           the related   Pass-Through Margin, (ii) the applicable Net WAC Cap and
           (iii) 11.000% per annum;

o           With respect to the Class X-IO   Certificates,   a per annum rate equal
           to the excess,   if any, of (a) the Net WAC Rate over (b) a rate equal
           to the   product of (1) the   interest   accrued on the Class A, Class M
           and   Class B   Certificates   for   such   Distribution   Date and (2) 12,
           divided by the aggregate   Certificate   Principal Balance of the Class
           A, Class M, Class B and Class X-PO Certificates immediately preceding
           such Distribution Date;

o        With respect to the Class R Certificates, the Group I Net WAC Rate;

o           With respect to the Class M   Certificates,   a per annum rate equal to
           the lesser of (i) LIBOR plus the related Pass-Through Margin and (ii)
           the related Net WAC Cap;

o           With   respect   to the Class B   Certificates,   the lesser of (i) LIBOR
           plus the   related   Pass-Through   Margin and (ii) the   related Net WAC
           Cap;

o The Class X-PO Certificates are not entitled to interest on any amounts due.

        Percentage Interest: With respect to any Certificate (other than a Class
R Certificate), the undivided percentage ownership interest in the related Class
evidenced by such   Certificate,   which   percentage   ownership   interest shall be
equal to the Initial   Certificate   Principal Balance thereof or Initial Notional
Amount (in the case of any Interest   Only   Certificate)   thereof   divided by the
aggregate Initial Certificate   Principal Balance or the aggregate of the Initial
Notional Amounts, as applicable, of all the Certificates of the same Class. With
respect to a Class R Certificate,   the interest in distributions to be made with
respect to such Class evidenced thereby, expressed as a percentage, as stated on
the face of each such Certificate.

        Permitted Investments:   One or more of the following:

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

(ii)     repurchase   agreements on   obligations   specified in clause (i) maturing
        not more than one month from the date of acquisition   thereof,   provided
        that the unsecured   short-term debt obligations of the party agreeing to
        repurchase such   obligations are at the time rated by each Rating Agency
        in its highest short-term rating available;

(iii)    federal funds,   certificates of deposit,   demand deposits, time deposits
         and bankers'   acceptances (which shall each have an original maturity of
        not more than 90 days and, in the case of bankers' acceptances, shall in
        no event have an original   maturity of more than 365 days or a remaining
        maturity of more than 30 days)   denominated   in United States dollars of
        any U.S. depository   institution or trust company incorporated under the
        laws of the United States or any state thereof or of any domestic branch
        of a foreign depository institution or trust company;   provided that the
        debt obligations of such depository   institution or trust company at the
        date of acquisition thereof have been rated by each Rating Agency in its
        highest short-term rating available;   and, provided further that, if the
        original maturity of such short-term obligations of a domestic branch of
        a foreign depository   institution or trust company shall exceed 30 days,
        the short-term   rating of such institution   shall be A-1+ in the case of
        Standard & Poor's if Standard & Poor's is a Rating Agency;

(iv)     commercial   paper and demand notes   (having   original   maturities of not
        more than 365 days) of any   corporation   incorporated   under the laws of
         the United States or any state thereof which on the date of   acquisition
        has been rated by each Rating   Agency in its highest   short-term   rating
        available;   provided that such   commercial   paper shall have a remaining
        maturity of not more than 30 days;

(v)      any mutual fund,   money   market fund,   common trust fund or other pooled
        investment vehicle,   the assets of which are limited to instruments that
        otherwise would constitute Permitted Investments hereunder and have been
        rated by each Rating Agency in its highest   short-term   rating available
        (in the case of Standard & Poor's   such   rating   shall be either AAAm or
        AAAm-G),   including   any such fund that is managed by the Trustee or any
        affiliate   of   the   Trustee   or   for   which   the   Trustee   or any of its
        affiliates acts as an adviser; and

(vi)     other   obligations   or   securities   that are   acceptable   to each Rating
        Agency as a   Permitted   Investment   hereunder   and will not   reduce   the
        rating   assigned   to any Class of   Certificates   by such   Rating   Agency
        (without giving effect to any Certificate Policy (if any) in the case of
        Insured Certificates (if any)) below the then-current rating assigned to
        such Certificates by such Rating Agency, as evidenced in writing;

        provided, however, that no instrument shall be a Permitted Investment if
it   represents,   either (1) the right to receive   only   interest   payments   with
respect to the   underlying   debt   instrument   or (2) the right to   receive   both
principal   and   interest   payments   derived   from   obligations   underlying   such
instrument   and   the   principal   and   interest   payments   with   respect   to such
instrument   provide   a yield   to   maturity   greater   than   120% of the   yield to
maturity at par of such underlying obligations. References herein to the highest
rating   available   on   unsecured   long-term   debt   shall mean AAA in the case of
Standard & Poor's and Fitch and Aaa in the case of Moody's,   and for purposes of
this   Agreement,   any   references   herein to the   highest   rating   available   on
unsecured   commercial   paper and   short-term   debt   obligations   shall   mean the
following:   A-1 in the case of Standard & Poor's, P-1 in the case of Moody's and
F-1 in the case of Fitch; provided,   however, that any Permitted Investment that
is a short-term debt obligation   rated A-1 by Standard & Poor's must satisfy the
following additional   conditions:   (i) the total amount of debt from A-1 issuers
must be limited to the   investment of monthly   principal   and interest   payments
(assuming fully amortizing collateral); (ii) the total amount of A-1 investments
must not   represent   more   than   20% of the   aggregate   outstanding   Certificate
Principal Balance of the Certificates and each investment must not mature beyond
30 days;   (iii) the terms of the debt must   have a   predetermined   fixed   dollar
amount   of   principal   due   at   maturity   that   cannot   vary;   and   (iv)   if the
investments may be liquidated   prior to their maturity or are being relied on to
meet a certain yield, interest must be tied to a single interest rate index plus
a single fixed spread (if any) and must move proportionately with that index.

        Prepayment Assumption:   With respect to the Mortgage Loans, a prepayment
assumption   of 20% CPR,   used for   determining   the   accrual of   original   issue
discount and market discount and premium on the   Certificates for federal income
tax purposes.

        Prepayment   Charge:   With respect to any Mortgage   Loan,   the charges or
premiums,   if any,   received in connection with a full or partial   prepayment of
such Mortgage Loan in accordance with the terms thereof.

        Prepayment   Charge Loan: Any Mortgage Loan for which a Prepayment Charge
may be assessed and to which such Prepayment   Charge the Class X-IO Certificates
are entitled, as indicated on the Mortgage Loan Schedule.

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

(i)      For any   Distribution   Date prior to the   Distribution   Date in December
         2015 (unless the   Certificate   Principal   Balances of the related Senior
        Certificates have been reduced to zero or the circumstances set forth in
        the third paragraph of the definition of Senior Accelerated Distribution
        Percentage exist), 0%.

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

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

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

(iii)    Notwithstanding   the   foregoing,   if the   application   of the   foregoing
        percentages on any Distribution Date as provided in Section 4.02 of this
        Series   Supplement   (determined   without   regard to the   proviso   to the
        definition of "Subordinate   Principal Distribution Amount") would result
        in a   distribution   in respect of   principal   of any Class or Classes of
        Subordinate   Certificates   in   an   amount   greater   than   the   remaining
        Certificate   Principal   Balance   thereof   (any such   class,   a "Maturing
        Class"),   then:   (a)   the   Prepayment   Distribution   Percentage   of each
         Maturing   Class   shall be   reduced   to a level   that,   when   applied   as
        described above, would exactly reduce the Certificate   Principal Balance
        of such Class to zero;   (b) the   Prepayment   Distribution   Percentage of
        each   other   Class   of   Subordinate   Certificates   (any   such   Class,   a
        "Non-Maturing   Class")   shall be   recalculated   in   accordance   with the
        provisions   in paragraph   (ii) above,   as if the   Certificate   Principal
        Balance of each Maturing Class had been reduced to zero (such percentage
        as recalculated, the "Recalculated Percentage"); (c) the total amount of
        the   reductions   in   the   Prepayment   Distribution   Percentages   of   the
        Maturing   Class or   Classes   pursuant   to clause   (a) of this   sentence,
        expressed   as an   aggregate   percentage,   shall be   allocated   among the
        Non-Maturing   Classes in   proportion   to their   respective   Recalculated
        Percentages (the portion of such aggregate reduction so allocated to any
        Non-Maturing Class, the "Adjustment   Percentage");   and (d) for purposes
        of such   Distribution   Date, the Prepayment   Distribution   Percentage of
        each Non-Maturing   Class shall be equal to the sum of (1) the Prepayment
        Distribution   Percentage   thereof,   calculated   in   accordance   with the
        provisions   in   paragraph   (ii)   above as if the   Certificate   Principal
        Balance of each   Maturing   Class had not been reduced to zero,   plus (2)
         the related Adjustment Percentage.

        Record Date: With respect to each   Distribution   Date and (a) each Class
of Certificates, other than the LIBOR Certificates, the close of business on the
last   Business   Day of the   month   preceding   the   month   in which   the   related
Distribution   Date   occurs   and (b) the LIBOR   Certificates,   the   business   day
immediately prior to such Distribution Date, as long as the certificates are DTC
registered certificates.

        REMIC I: The segregated pool of assets related to this Series (except as
provided   below),   with respect to which a REMIC election is to be made pursuant
to this Agreement, consisting of:

(i)      the   Mortgage   Loans   and the   related   Mortgage   Files   and   collateral
        securing such Mortgage Loans,

(ii)     all payments on and   collections   in respect of the   Mortgage   Loans due
        after the Cut-off Date (other than Monthly   Payments due in the month of
        the Cut-off Date) as shall be on deposit in the Custodial   Account or in
        the   Certificate   Account and identified as belonging to the Trust Fund,
        but not including amounts on deposit in the Initial Monthly Payment Fund
        and not including any Prepayment Charges,

(iii)    property that secured a Mortgage Loan and that has been acquired for the
        benefit   of the   Certificateholders   by   foreclosure   or deed in lieu of
        foreclosure,

(iv)     the hazard insurance   policies and Primary Insurance   Policies,   if any,
        and

(v)      all proceeds of clauses (i) through (iv) above.

        Notwithstanding the foregoing,   the REMIC election with respect to REMIC
I specifically   excludes the Initial Monthly Payment Fund, the Yield Maintenance
Agreement Reserve Fund and the Carryover Shortfall Reserve Fund.

        REMIC I Certificates:   The Class R-I Certificates.

        REMIC I Distribution   Amount:   For any Distribution   Date, the Available
Distribution   Amount shall be distributed to the Uncertificated   REMIC I Regular
Interests and the Class R-I Certificates in the following amounts and priority:

        (a)     first,   from the   portion of the   Available   Distribution   Amount
               attributable to the Group I Mortgage Loans, to the Uncertificated
               REMIC I Regular   Interests   LT1, LT2, LT4, LT 10, LT12 and Y1 pro
               rata,   in an   amount   equal to (x) their   Uncertificated   Accrued
               Interest   for such   Distribution   Date,   plus (y) any   amounts in
               respect   thereof   remaining   unpaid   from   previous   Distribution
               Dates; and

        (b)     an amount equal to the   remainder of the portion of the Available
               Distribution   Amount   attributable   to the Group I Mortgage Loans
               after   the   distributions   made   pursuant   to clause   (a)   above,
               allocated as follows (except as provided below):

        (i)     in respect of REMIC I Regular   Interests   LT2,   LT3,   LT4,   LT10,
               LT11,   LT12   and   Y1,   their   respective   Principal   Distribution
               Amounts;

        (ii)    in respect of REMIC I Regular   Interest LT1 any   remainder   until
               the Uncertificated Principal Balance thereof is reduced to zero;

        (iii)   in respect of REMIC I Regular   Interests   LT2,   LT3,   LT4,   LT10,
               LT11,   LT12 and Y1, any   remainder   pro rata   according   to their
               respective   Uncertificated   Principal   Balances as reduced by the
               distributions   deemed   made   pursuant   to (i) above,   until their
               respective Uncertificated Principal Balances are reduced to zero;

        (iv)     first,   any   remainder   to the   Uncertificated   REMIC I   Regular
                Interests LT1, LT2, LT3, LT4, LT10,   LT11,   LT12 and Y1 pro rata
                according   to   the   amount   of    unreimbursed    Realized   Losses
                allocable   to   principal    previously   allocated   to   each   such
                Uncertificated REMIC I Regular Interest, the aggregate amount of
                 any   distributions   to the Certificates as reimbursement of such
                Realized   Losses on such   Distribution   Date pursuant to Section
                4.02(e);    provided,    however,   that   any   amounts   distributed
                 pursuant to this   paragraph   (b)(iv) shall not cause a reduction
                in   the    Uncertificated    Principal   Balances   of   any   of   the
                Uncertificated REMIC I Regular Interests; and

        (v)     second, any remaining amounts to the Class R-I Certificates.

        (c)     first,   from the   portion of the   Available   Distribution   Amount
               attributable    to   the    Group    II    Mortgage    Loans,    to   the
               Uncertificated   REMIC I Regular   Interests   LT5, LT6, LT8, LT 14,
               LT16   and   Y2   pro   rata,    in   an   amount   equal   to   (x)   their
               Uncertificated   Accrued Interest for such Distribution Date, plus
               (y) any amounts in respect thereof remaining unpaid from previous
               Distribution Dates; and

        (d)     an amount equal to the   remainder of the portion of the Available
               Distribution   Amount   attributable to the Group II Mortgage Loans
               after   the   distributions   made   pursuant   to clause   (a)   above,
               allocated as follows (except as provided below):

        (i)     in respect of REMIC I Regular   Interests   LT6,   LT7,   LT8,   LT14,
               LT15,   LT16   and   Y2,   their   respective   Principal   Distribution
               Amounts;

        (ii)    in respect of REMIC I Regular   Interest LT5 any   remainder   until
               the Uncertificated Principal Balance thereof is reduced to zero;

        (iii)   in respect of REMIC I Regular   Interests   LT6,   LT7,   LT8,   LT14,
               LT15,   LT16 and Y2, any   remainder   pro rata   according   to their
               respective   Uncertificated   Principal   Balances as reduced by the
               distributions   deemed   made   pursuant   to (i) above,   until their
               respective Uncertificated Principal Balances are reduced to zero;

        (iv)     first,   any   remainder   to the   Uncertificated   REMIC I   Regular
                Interests LT5, LT6, LT7, LT8, LT14,   LT15,   LT16 and Y2 pro rata
                 according   to   the   amount   of    unreimbursed    Realized   Losses
                allocable   to   principal    previously   allocated   to   each   such
                Uncertificated REMIC I Regular Interest, the aggregate amount of
                any   distributions   to the Certificates as reimbursement of such
                Realized   Losses on such   Distribution   Date pursuant to Section
                4.02(e);    provided,    however,   that   any   amounts   distributed
                pursuant to this   paragraph   (b)(iv) shall not cause a reduction
                in   the    Uncertificated    Principal   Balances   of   any   of   the
                Uncertificated REMIC I Regular Interests; and

        (v)     second, any remaining amounts to the Class R-I Certificates.

        REMIC I Net   Negative   Amortization:   For   any   Distribution   Date,   Net
Deferred   Interest   shall be   allocated   to the   REMIC I Regular   Interests,   as
follows:   Net   Deferred   Interest   attributable   to the Group I Mortgage   Loans,
first,   shall be allocated to the REMIC I Regular Interest Y1 to the extent,   if
any, that the Principal   Reduction   Amount for such REMIC I Regular   Interest is
negative and, second,   any remaining Net Deferred   Interest   attributable to the
Group I Mortgage   Loans shall be allocated to the REMIC I Regular   Interest LT1.
Net Deferred Interest   attributable to the Group II Mortgage Loans, first, shall
be allocated   to the REMIC I Regular   Interest to the extent,   if any,   that the
Principal   Reduction   Amount for such REMIC I Regular   Interest is negative and.
Second,   any   remaining   Net   Deferred   Interest   attributable   to the   Group II
Mortgage Loans shall be allocated to the REMIC I Regular Interest LT5.

        REMIC I Realized Losses: For any Distribution   Date,   Realized Losses on
the   Mortgage   Loans shall be allocated   to the   Uncertificated   REMIC I Regular
Interests   as   follows:   (1)   the   interest   portion   of   such   Realized   Losses
attributable   to Group I Mortgage   Loans,   if any, shall be allocated   among the
Uncertificated   REMIC I Regular   Interests LT1, LT2, LT4, LT 10, LT12 and Y1 pro
rata   according   to the   amount of   interest   accrued   but   unpaid   thereon,   in
reduction thereof. Any interest portion of such Realized Losses in excess of the
amount   allocated   pursuant   to the   preceding   sentence   shall be   treated as a
principal   portion of Realized Losses not attributable to any specific   Mortgage
Loan and allocated pursuant to the succeeding   sentences.   The principal portion
of Realized Losses attributable to the Group I Mortgage Loans shall be allocated
to the Uncertificated   REMIC I Regular Interests LT1, LT2, LT3, LT4, LT10, LT11,
LT12 and Y1 as follows:   first,   the principal   portion of such Realized   Losses
shall be allocated,   first,   to REMIC I Regular   Interests   LT2, LT3, LT4, LT10,
LT11,   LT12 and Y1 pro rata   according   to their   respective   REMIC I   Principal
Reduction   Amounts to the   extent   thereof in   reduction   of the   Uncertificated
Principal Balance thereof and, second, the remainder,   if any, of such principal
portion of such Realized   Losses shall be allocated to REMIC I Regular   Interest
LT1 in reduction of the   Uncertificated   Principal Balance thereof;   and (2) the
interest   portion of such   Realized   Losses   attributable   to Group II   Mortgage
Loans,   if any,   shall be   allocated   among the   Uncertificated   REMIC I Regular
Interests   LT5, LT6, LT8, LT 14, LT16 and Y2 pro rata according to the amount of
interest accrued but unpaid thereon, in reduction thereof.   Any interest portion
of such   Realized   Losses in   excess of the   amount   allocated   pursuant   to the
preceding   sentence shall be treated as a principal   portion of Realized   Losses
not   attributable   to any specific   Mortgage Loan and allocated   pursuant to the
succeeding   sentences.   The principal portion of Realized Losses attributable to
the Group II Mortgage   Loans shall be   allocated to the   Uncertificated   REMIC I
Regular Interests LT5, LT6, LT7, LT8, LT14, LT15, LT16 and Y2 as follows: first,
the principal   portion of such Realized   Losses shall be   allocated,   first,   to
REMIC I Regular   Interests   LT6,   LT7,   LT8,   LT14,   LT15,   LT16 and Y2 pro rata
according to their respective REMIC I Principal   Reduction Amounts to the extent
thereof in   reduction   of the   Uncertificated   Principal   Balance   thereof   and,
second, the remainder, if any, of such principal portion of such Realized Losses
shall   be   allocated   to   REMIC   I   Regular   Interest   LT5 in   reduction   of the
Uncertificated Principal Balance thereof.

        REMIC I Principal   Reduction   Amounts:   For any   Distribution   Date, the
amounts by which the principal   balances of the REMIC I Regular   Interests   LT1,
LT2, LT3, LT4, LT5, LT6, LT7, LT8, LT10,   LT11,   LT12,   LT14, LT15, LT16, Y1 and
Y2, respectively, will be reduced on such Distribution Date by the allocation of
Realized   Losses and the   distribution   of principal as determined in accordance
with the provisions in the Appendix.

        REMIC I Regular   Interest LT1   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest LT1 for such   Distribution   Date over the Realized
Losses   allocated to REMIC I Regular Interest LT1 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT2   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest LT2 for such   Distribution   Date over the Realized
Losses   allocated to REMIC I Regular Interest LT2 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT3   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest LT3 for such   Distribution   Date over the Realized
Losses   allocated to REMIC I Regular Interest LT3 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT4   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest LT4 for such   Distribution   Date over the Realized
Losses   allocated to REMIC I Regular Interest LT4 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT5   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest LT5 for such   Distribution   Date over the Realized
Losses   allocated to REMIC I Regular Interest LT5 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT6   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest LT6 for such   Distribution   Date over the Realized
Losses   allocated to REMIC I Regular Interest LT6 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT7   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest LT7 for such   Distribution   Date over the Realized
Losses   allocated to REMIC I Regular Interest LT7 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT8   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest LT8 for such   Distribution   Date over the Realized
Losses   allocated to REMIC I Regular Interest LT8 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT10 Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular Interest LT10 for such   Distribution   Date over the Realized
Losses allocated to REMIC I Regular Interest LT10 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT11 Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular Interest LT11 for such   Distribution   Date over the Realized
Losses allocated to REMIC I Regular Interest LT11 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT12 Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular Interest LT12 for such   Distribution   Date over the Realized
Losses allocated to REMIC I Regular Interest LT12 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT14 Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular Interest LT14 for such   Distribution   Date over the Realized
Losses allocated to REMIC I Regular Interest LT14 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT15 Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular Interest LT15 for such   Distribution   Date over the Realized
Losses allocated to REMIC I Regular Interest LT15 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest LT16 Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular Interest LT16 for such   Distribution   Date over the Realized
Losses allocated to REMIC I Regular Interest LT16 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest   Y1   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest Y1 for such   Distribution   Date over the   Realized
Losses   allocated to REMIC I Regular   Interest Y1 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC I Regular   Interest   Y2   Principal   Distribution   Amount:   For any
Distribution Date, the excess, if any, of the REMIC I Principal Reduction Amount
for REMIC I Regular   Interest Y2 for such   Distribution   Date over the   Realized
Losses   allocated to REMIC I Regular   Interest Y2 on such   Distribution   Date in
reduction of the Uncertificated Principal Balance thereof.

        REMIC II: The segregated pool of assets consisting of the Uncertificated
REMIC I Regular   Interests   conveyed in trust to the Trustee pursuant to Section
2.06 for the   benefit of the   holders of the Class   A-1,   Class A-2,   Class A-3,
Class X-IO,   Class X-PO,   Class M-1,   Class M-2, Class M-3, Class B-1, Class B-2
and Class B-3   Certificates   and the Class R-II   Certificates,   with   respect to
which a separate   REMIC   election is to be made. The REMIC election with respect
to REMIC II   specifically   excludes the Initial   Monthly Payment Fund, the Yield
Maintenance Agreement Reserve Fund and the Carryover Shortfall Reserve Fund.

        REMIC II Certificates: Any of the Class A-1, Class A-2, Class A-3, Class
X-IO,   Class X-PO,   Class M-1,   Class M-2,   Class M-3,   Class B-1, Class B-2 and
Class B-3 Certificates and the Class R-II Certificates.

        REMIC II Regular   Interests:   The Class A-1, Class A-2, Class A-3, Class
X-IO,   Class M-1,   Class   M-2,   Class   M-3,   Class B-1,   Class B-2 and Class B-3
Certificates   exclusive   of any   rights to the   payment of   Carryover   Shortfall
Amounts and of any   obligation to make payments in respect of such amounts,   and
the REMIC II Regular Interest X-PO-PO and the REMIC II Regular Interest X-PO-IO.

        Senior   Accelerated   Distribution    Percentage:    With   respect   to   any
Distribution Date occurring on or prior to the 120th Distribution Date and, with
respect   to   any   Loan   Group,   100%.   With   respect   to any   Distribution   Date
thereafter and any such Loan Group, as follows:

(i)      for any Distribution   Date after the 120th   Distribution   Date but on or
        prior to the 132nd   Distribution Date, the related Senior Percentage for
        such   Distribution Date plus 70% of the related   Subordinate   Percentage
        for such Distribution Date;

(ii)     for any Distribution   Date after the 132nd   Distribution   Date but on or
        prior to the 144th   Distribution Date, the related Senior Percentage for
        such   Distribution Date plus 60% of the related   Subordinate   Percentage
        for such Distribution Date;

(iii)    for any Distribution   Date after the 144th   Distribution   Date but on or
        prior to the 156th   Distribution Date, the related Senior Percentage for
        such   Distribution Date plus 40% of the related   Subordinate   Percentage
        for such Distribution Date;

(iv)     for any Distribution   Date after the 156th   Distribution   Date but on or
        prior to the 168th   Distribution Date, the related Senior Percentage for
        such   Distribution Date plus 20% of the related   Subordinate   Percentage
        for such Distribution Date; and

(v)      for any Distribution Date thereafter,   the related Senior Percentage for
        such Distribution Date.

        Any scheduled reduction, as described in the preceding paragraph,   shall
not be made as of any Distribution Date unless:

(a)             the outstanding   principal   balance of the Mortgage Loans in both
               Loan Groups delinquent 60 days or more (including   Mortgage Loans
               which are in   foreclosure,   have   been   foreclosed   or   otherwise
               liquidated,   or   with   respect   to   which   the   Mortgagor   is   in
               bankruptcy   and any REO   Property)   averaged   over   the   last six
               months, as a percentage of the aggregate outstanding   Certificate
               Principal Balance of the Subordinate   Certificates,   is less than
               50% and

(b)             Realized Losses on the Mortgage Loans in both Loan Groups to date
               for such   Distribution   Date,   if occurring   during the eleventh,
               twelfth,   thirteenth,   fourteenth and fifteenth year, or any year
               thereafter,   after the Closing Date, are less than 30%, 35%, 40%,
               45% or 50%,   respectively,   of the sum of the Initial Certificate
               Principal Balances of the Subordinate Certificates.

        Notwithstanding   the   foregoing,   if (a)   the   weighted   average   of the
Subordinate   Percentage   for both Loan   Groups is equal to or in excess of twice
the   initial   weighted   average   of the   Subordinate   Percentages   for both Loan
Groups, (b) the outstanding principal balance of the Mortgage Loans in both Loan
Groups   delinquent   60 days or   more   (including   Mortgage   Loans   which   are in
foreclosure,   have been foreclosed or otherwise   liquidated,   or with respect to
which the   Mortgagor is in bankruptcy   and any REO   Property)   averaged over the
last six   months,   as a   percentage   of the   aggregate   outstanding   Certificate
Principal   Balance   of the   Subordinate   Certificates,   does not   exceed 50% and
(c)(i) prior to the   Distribution   Date in December   2008,   cumulative   Realized
Losses on the Mortgage Loans in both Loan Groups do not exceed 20% of the sum of
the initial Certificate Principal Balances of the Subordinate Certificates,   and
(ii) thereafter,   cumulative   Realized Losses on the Mortgage Loans in both Loan
Groups   do not   exceed   30% of the   sum   of the   initial   Certificate   Principal
Balances of the   Subordinate   Certificates,   then (A) on any   Distribution   Date
prior   to the   Distribution   Date in   December   2008,   each   Senior   Accelerated
Distribution Percentage for such Distribution Date will equal the related Senior
Percentage   for   that   Distribution   Date   plus 50% of the   related   Subordinate
Percentage for such   Distribution   Date, and (B) on any Distribution   Date on or
after   the   Distribution    Date   in   December   2008,   each   Senior    Accelerated
Distribution Percentage for that Distribution Date will equal the related Senior
Percentage for that Distribution Date.

        Notwithstanding   the foregoing,   on any   Distribution   Date on which the
weighted   average   of   the   Group   I   Senior   Percentage   and   Group   II   Senior
Percentage,   weighted   on the   basis of the   Stated   Principal   Balances   of the
Mortgage   Loans in the related Loan Group,   exceeds the weighted   average of the
initial Group I Senior Percentage and Group II Senior Percentage   (calculated on
such basis),   each of the Senior Accelerated   Distribution   Percentages for such
Distribution Date will equal 100%.

        Notwithstanding   the   foregoing,    upon   reduction   of   the   Certificate
Principal   Balances   of the related   Senior   Certificates   to zero,   the related
Senior Accelerated Distribution Percentage will equal 0%.

        Senior   Certificate:   Any one of the Class A, Class X-IO,   Class X-PO or
Class   R   Certificates,   executed   by   the   Trustee   and   authenticated   by   the
Certificate Registrar substantially in the form annexed to the Standard Terms as
Exhibit A and Exhibit D.

        Senior   Percentage:   The Group I Senior   Percentage with respect to Loan
Group I or the Group II Senior Percentage with respect to Loan Group II.

        Senior   Principal   Distribution   Amount:   The   Group I Senior   Principal
Distribution   Amount   with   respect   to Loan   Group   I or the   Group   II   Senior
Principal Distribution Amount with respect to Loan Group II.

        Stated Principal   Balance:   With respect to any Mortgage Loan or related
REO Property,   as of any Distribution   Date, (i) the sum of (a) the Cut-off Date
Principal   Balance of the Mortgage   Loan plus (b) any amount by which the Stated
Principal   Balance   of the   Mortgage   Loan   has   been   increased   pursuant   to a
Servicing   Modification and (c) any amount by which the Stated Principal Balance
of the Mortgage Loan has been   increased for Deferred   Interest   pursuant to the
terms of the related Mortgage Note on or prior to the   Distribution   Date, minus
(ii) the sum of (a) the   principal   portion   of the   Monthly   Payments   due with
respect to such Mortgage Loan or REO Property during each Due Period ending with
the Due Period related to the previous   Distribution Date which were received or
with   respect to which an Advance was made,   and (b) all   Principal   Prepayments
with respect to such Mortgage Loan or REO Property,   and all Insurance Proceeds,
Liquidation   Proceeds   and REO   Proceeds,   to the   extent   applied by the Master
Servicer as recoveries of principal in accordance with Section 3.14 with respect
to such   Mortgage   Loan or REO   Property,   in each case which   were   distributed
pursuant to Section 4.02 on any previous Distribution Date, and (c) any Realized
Loss   allocated   to   Certificateholders   with   respect   thereto for any previous
Distribution Date.

        Subordinate   Component:   With   respect   to (i) Loan Group I, the Group I
Subordinate   Component   and   (ii)   Loan   Group   II,   the   Group   II   Subordinate
Component.

        Subordinate    Principal    Distribution    Amount:   With   respect   to   any
Distribution Date and Loan Group and each Class of Subordinate Certificates, (a)
the sum of (i) the   product   of (x) the   Class's   pro rata   share,   based on the
Certificate   Principal Balance of each such Class then outstanding,   and (y) the
aggregate of the amounts   calculated   for such   Distribution   Date under clauses
(1), (2) and (3) of Section   4.02(a)(ii)(A) of this Series   Supplement   (without
giving effect to the related Senior Percentage) to the extent not payable to the
related   Senior   Certificates   and to the extent not applied to offset   Deferred
Interest;   (ii) such Class's pro rata share, based on the Certificate   Principal
Balance of each   Class of   Subordinate   Certificates   then   outstanding,   of the
principal   collections   described   in Section   4.02(a)(ii)(B)(b)   of this Series
Supplement (without giving effect to the related Senior Accelerated Distribution
Percentage) to the extent such collections are not otherwise   distributed to the
related   Senior   Certificates   and to the extent not applied to offset   Deferred
Interest;    (iii)   the   product   of   (x)   the   related   Prepayment   Distribution
Percentage   and (y) the aggregate of all Principal   Prepayments in Full received
in the related   Prepayment   Period and   Curtailments   received in the   preceding
calendar month on the Mortgage Loans in the related Loan Group to the extent not
payable to the   Senior   Certificates   and to the   extent   not   applied to offset
Deferred Interest; and (iv) any amounts described in clauses (i), (ii) and (iii)
as determined for any previous   Distribution Date, that remain   undistributed to
the extent that such amounts are not   attributable to Realized Losses which have
been   allocated to a Class of   Subordinate   Certificates;   minus (b) the related
Capitalization   Reimbursement Amount for such Distribution Date, multiplied by a
fraction,    the   numerator   of   which   is   the   related   Subordinate    Principal
Distribution Amount for such Class of Subordinate   Certificates,   without giving
effect to this clause   (b)(ii),   and the   denominator of which is the sum of the
principal distribution amounts for all related Classes of Certificates,   in each
case to the   extent   derived   from the   related   Available   Distribution   Amount
without   giving effect to any reductions   for the   Capitalization   Reimbursement
Amount.

        Trust Fund:   REMIC I, REMIC II, the Initial   Monthly   Payment Fund,   the
Yield   Maintenance   Agreement   Reserve Fund and the Carryover   Shortfall Reserve
Fund.

        Uncertificated   Accrued   Interest:   With respect to each   Uncertificated
REMIC I Regular   Interest   on each   Distribution   Date,   an amount   equal to one
month's interest at the related   Uncertificated REMIC I Pass-Through Rate on the
Uncertificated    Principal   Balance   of   such   Uncertificated   REMIC   I   Regular
Interest.   Uncertificated Accrued Interest on the Uncertificated REMIC I Regular
Interests will be reduced by any Prepayment   Interest   Shortfalls and Relief Act
Interest   Shortfalls,   allocated   among   such   Uncertificated   REMIC   I   Regular
Interests pro rata.

        Uncertificated    Principal    Balance:    The   principal    amount   of   any
Uncertificated    REMIC   I   Regular   Interest   outstanding   as   of   any   date   of
determination. The Uncertificated Principal Balance of each Uncertificated REMIC
I Regular   Interest shall be reduced by all   distributions of principal made on,
and   allocation   of   Realized   Losses to,   such   Uncertificated   REMIC I Regular
Interest on such Distribution Date. The Uncertificated Principal Balance of each
Uncertificated REMIC I Regular Interest shall never be less than zero.

        Uncertificated   REMIC I Regular Interests:   The   uncertificated   partial
undivided   beneficial   ownership   interests   in REMIC I,   designated   as REMIC I
Regular   Interests   LT1, LT2, LT3, LT4, LT5, LT6, LT7, LT8,   LT10,   LT11,   LT12,
LT14, LT15, LT16, Y1 and Y2, each having an Uncertificated   Principal Balance as
specified    herein   and   bearing   interest   at   a   rate   equal   to   the   related
Uncertificated REMIC I Pass-Through Rate.

        Uncertificated    REMIC   I   Pass-Through    Rate:    With   respect   to   any
Distribution   Date and: (i) REMIC I Regular Interests LT1, LT2, LT10 and Y1, the
Net WAC Rate of the Group I Mortgage Loans,   (ii) REMIC I Regular   Interests LT3
and LT11, zero (0.00%),   (iii) REMIC I Regular Interests LT4 and LT12, twice the
Net WAC Rate of the Group I Mortgage Loans,   (iv) REMIC I Regular Interests LT5,
LT6, LT14 and Y2, the Net WAC Rate of the Group II Mortgage   Loans,   (v) REMIC I
Regular   Interests LT7 and LT15, zero (0.00%) and (vi) REMIC I Regular Interests
LT8 and LT16, twice the Net WAC Rate of the Group II Mortgage Loans.

        Undercollateralized   Amount:   With   respect   any   Certificate   Group and
Distribution Date, the excess of (i) the aggregate Certificate Principal Balance
of such   Certificate   Group and the Class X-PO   Component   for the related   Loan
Group over (ii) the aggregate Stated Principal   Balance of the Mortgage Loans in
the related Loan Group, in each case calculated on such   Distribution Date after
giving   effect to   distributions   to be made   thereon   (other than amounts to be
distributed pursuant to Section 4.02(g) on such Distribution Date).

        Undercollateralized   Certificate   Group:   With respect any   Distribution
Date,   a   Certificate   Group and the Class X-PO   Component   for the related Loan
Group for which the related Undercollateralized Amount exceeds zero.

        Underwriter:   Greenwich Capital Markets, Inc..

        Yield   Maintenance   Agreements:   The agreements   dated as of the Closing
Date, between the Trustee and the Yield Maintenance Agreement Provider, relating
to the Class A Certificates, or any replacement, substitute, collateral or other
arrangement in lieu thereof.

        Yield   Maintenance   Agreement   Provider:    Bank   of   New   York   and   its
successors and assigns or any party to any replacement,   substitute,   collateral
or other arrangement in lieu thereof.

        Yield Maintenance   Payment:   For any Distribution Date, the payment,   if
any, due under the Yield   Maintenance   Agreement in respect of such Distribution
Date.

        Yield Maintenance   Agreement   Reserve Fund: The account   established and
maintained by the Trustee pursuant to Section 4.09 hereof.

Section 1.02    Use of Words and Phrases.

        "Herein," "hereby," "hereunder," "hereof," "hereinbefore," "hereinafter"
and other   equivalent   words refer to the Pooling and   Servicing   Agreement as a
whole. All references herein to Articles, Sections or Subsections shall mean the
corresponding   Articles,   Sections and   Subsections in the Pooling and Servicing
Agreement.   The   definitions   set forth herein include both the singular and the
plural

Section 1.03    Determination of LIBOR

        LIBOR   applicable to the   calculation of the   Pass-Through   Rates on the
LIBOR   Certificates   for any   Interest   Accrual   Period   (other than the initial
Interest Accrual Period) will be determined as described below:

        On each   Distribution   Date,   LIBOR shall be   established by the Trustee
and, as to any Interest Accrual Period, will equal the rate for one month United
States   dollar   deposits   that appears on the   Telerate   Screen Page 3750 of the
Moneyline   Telerate Capital Markets Report as of 11:00 a.m., London time, on the
second LIBOR Business Day prior to the first day of such Interest Accrual Period
("LIBOR Rate Adjustment   Date").   "Telerate   Screen Page 3750" means the display
designated   as page 3750 on the   Telerate   Service   (or such   other   page as may
replace page 3750 on that service for the purpose of displaying London interbank
offered   rates of major   banks).   If such rate does not   appear on such page (or
such other page as may replace that page on that service,   or if such service is
no longer offered, any other service for displaying LIBOR or comparable rates as
may be selected by the Trustee after consultation with the Master Servicer), the
rate   will be the   Reference   Bank   Rate.   The   "Reference   Bank   Rate"   will be
determined   on the   basis of the rates at which   deposits   in U.S.   Dollars   are
offered by the   reference   banks   (which shall be any three major banks that are
engaged in transactions in the London interbank market,   selected by the Trustee
after   consultation   with the Master Servicer) as of 11:00 a.m., London time, on
the day   that is one   LIBOR   Business   Day   prior to the   immediately   preceding
Distribution   Date to prime banks in the London interbank market for a period of
one month in amounts   approximately equal to the aggregate Certificate Principal
Balance of the LIBOR Certificates then outstanding. The Trustee will request the
principal London office of each of the reference banks to provide a quotation of
its rate. If at least two such   quotations   are   provided,   the rate will be the
arithmetic   mean of the quotations   rounded up to the next multiple of 1/16%. If
on such date fewer than two quotations are provided as requested,   the rate will
be the   arithmetic   mean of the rates   quoted by one or more major   banks in New
York City,   selected by the Trustee after consultation with the Master Servicer,
as of 11:00 a.m., New York City time, on such date for loans in U.S.   Dollars to
leading European banks for a period of one month in amounts   approximately equal
to the aggregate   Certificate   Principal Balance of the LIBOR   Certificates then
outstanding.   If no such quotations can be obtained,   the rate will be LIBOR for
the prior   Distribution Date, or, in the case of the first LIBOR Rate Adjustment
Date, 4.21% per annum;   provided,   however,   if, under the priorities   described
above,   LIBOR for a   Distribution   Date would be based on LIBOR for the previous
Distribution   Date for the third   consecutive   Distribution   Date,   the   Trustee
shall,   after   consultation   with the   Master   Servicer,   select an   alternative
comparable   index (over which the Trustee has no control),   used for determining
one-month   Eurodollar   lending   rates   that   is   calculated   and   published   (or
otherwise made   available) by an independent   party.   "LIBOR Business Day" means
any day other   than (i) a   Saturday   or a Sunday or (ii) a day on which   banking
institutions in the city of London, England are required or authorized by law to
be closed.

        The   establishment   of LIBOR by the Trustee on any LIBOR Rate Adjustment
Date and the Master Servicer's subsequent   calculation of the Pass-Through Rates
applicable to each of the LIBOR   Certificates for the relevant   Interest Accrual
Period, in the absence of manifest error, will be final and binding.

        Promptly   following   each LIBOR Rate   Adjustment   Date the Trustee shall
supply the Master   Servicer   with the results of its   determination   of LIBOR on
such date.   Furthermore,   the Trustee will supply the Pass-Through Rates on each
of the LIBOR Certificates for the current and the immediately preceding Interest
Accrual   Period via the   Trustee's   internet   website,   which may be obtained by
telephoning the Trustee at (800) 735-7777.





<PAGE>



ARTICLE II

                           CONVEYANCE OF MORTGAGE LOANS;
                        ORIGINAL ISSUANCE OF CERTIFICATES

Section 2.01    Conveyance of Mortgage Loans.

(a) (See Section 2.01(a) of the Standard Terms).

(b) (See Section 2.01(b) of the Standard Terms).

(c) The Company may, in lieu of   delivering   the original of the   documents   set
forth in Section   2.01(b)(I)(ii),   (iii), (iv) and (v) and Section   (b)(II)(ii),
(iv), (vii), (ix) and (x) (or copies thereof as permitted by Section 2.01(b)) to
the Trustee or the Custodian or Custodians, deliver such documents to the Master
Servicer, and the Master Servicer shall hold such documents in trust for the use
and benefit of all present and future   Certificateholders   until such time as is
set forth in the next   sentence.   Within   thirty   Business   Days   following   the
earlier   of (i)   the   receipt   of the   original   of   all   of   the   documents   or
instruments set forth in Section 2.01(b)(I)(ii), (iii), (iv) and (v) and Section
(b)(II)(ii),   (iv),   (vii), (ix) and (x) (or copies thereof as permitted by such
Section)   for any   Mortgage   Loan and (ii) a written   request by the   Trustee to
deliver those   documents   with respect to any or all of the Mortgage   Loans then
being held by the Master Servicer,   the Master Servicer shall deliver a complete
set of such documents to the Trustee or the Custodian or Custodians that are the
duly appointed agent or agents of the Trustee.

        The parties   hereto agree that it is not intended that any Mortgage Loan
be   included   in the Trust   Fund that is either (i) a   "High-Cost   Home Loan" as
defined in the New Jersey Home Ownership Act effective November 27, 2003, (ii) a
"High-Cost   Home Loan" as defined in the New   Mexico   Home Loan   Protection   Act
effective   January 1, 2004, (iii) a "High Cost Home Mortgage Loan" as defined in
the Massachusetts   Predatory Home Loan Practices Act effective   November 7, 2004
or (iv) a "High-Cost Home Loan" as defined in the Indiana House Enrolled Act No.
1229, effective as of January 1, 2005.

(d) (See Section 2.01(d) of the Standard Terms).

(e) (See Section 2.01(e) of the Standard Terms).

(f) (See Section 2.01(f) of the Standard Terms).

(g) (See Section 2.01(g) of the Standard Terms).

(h) (See Section 2.01(h) of the Standard Terms).

(i) In connection with such assignment,   and contemporaneously with the delivery
of this Agreement,   the Company delivered or caused to be delivered hereunder to
the   Trustee,   the Yield   Maintenance   Agreement   (the   delivery   of which shall
evidence   that the fixed   payment for the Yield   Maintenance   Agreement has been
paid and the Trustee and the Trust Fund shall have no further payment obligation
thereunder and that such fixed payment has been authorized hereby)

Section 2.02    Acceptance by Trustee.   (See Section 2.02 of the Standard Terms)

Section 2.03   Representations,   Warranties and Covenants of the Master   Servicer
        and the Company.

(a)      For   representations,   warranties and covenants of the Master   Servicer,
        see Section 2.03(a) of the Standard Terms.

(b)      The   Company   hereby   represents   and   warrants   to the   Trustee for the
        benefit   of   Certificateholders   that as of the   Closing   Date   (or,   if
        otherwise specified below, as of the date so specified):

(i)      No Mortgage   Loan is 30 or more days   Delinquent in payment of principal
        and   interest   as of the Cut-off   Date and no Mortgage   Loan has been so
        Delinquent   more than once in the   12-month   period prior to the Cut-off
        Date;

(ii)     The   information   set forth in Exhibit One hereto   with   respect to each
        Mortgage   Loan or the   Mortgage   Loans,   as the case may be, is true and
        correct in all material   respects at the date or dates   respecting which
        such information is furnished;

(iii)    The Mortgage   Loans are   payment-option   adjustable-rate   mortgage loans
        with a negative   amortization   feature,   and Monthly   Payments due, with
        respect to a majority of the   Mortgage   Loans,   on the first day of each
        month and terms to maturity at origination or   modification   of not more
        than 30 years;

(iv)     To the best of the   Company's   knowledge,   except   with   respect   to two
        Mortgage Loans   representing   approximately 0.1% of the aggregate Stated
        Principal   Balance of the Mortgage   Loans, if a Mortgage Loan is secured
        by a Mortgaged   Property with a   Loan-to-Value   Ratio at   origination in
        excess of 80%, such Mortgage Loan is the subject of a Primary   Insurance
        Policy that insures (a) at least 35% of the Stated Principal   Balance of
        the Mortgage Loan at origination if the   Loan-to-Value   Ratio is between
        100.00% and 95.01%,   (b) at least 30% of the Stated Principal Balance of
        the Mortgage Loan at origination if the   Loan-to-Value   Ratio is between
        95.00% and 90.01%, (c) at least 25% of such balance if the Loan-to-Value
        Ratio is between   90.00% and 85.01% and (d) at least 12% of such balance
        if the Loan-to-Value   Ratio is between 85.00% and 80.01%. To the best of
        the Company's   knowledge,   each such Primary Insurance Policy is in full
        force and effect and the Trustee is entitled to the benefits thereunder;

(v)      The issuers of the Primary   Insurance   Policies are insurance   companies
        whose   claims-paying   abilities are currently   acceptable to each Rating
        Agency;

(vi)     No more than 0.8% of the Mortgage   Loans by aggregate   Stated   Principal
        Balance   as of the   Cut-off   Date are   secured by   Mortgaged   Properties
        located in any one zip code area in California   and no more than 0.5% of
        the Mortgage   Loans are secured by Mortgaged   Properties   located in any
        one zip code area outside California;

(vii)    The improvements upon the Mortgaged   Properties are insured against loss
        by fire and other   hazards as required by the Program   Guide,   including
        flood   insurance if required under the National   Flood   Insurance Act of
        1968, as amended.   The Mortgage   requires the Mortgagor to maintain such
        casualty   insurance at the Mortgagor's   expense,   and on the Mortgagor's
        failure to do so,   authorizes   the holder of the   Mortgage to obtain and
        maintain   such   insurance   at   the   Mortgagor's    expense   and   to   seek
        reimbursement therefor from the Mortgagor;

(viii)   Immediately   prior   to the   assignment   of   the   Mortgage   Loans   to the
        Trustee,   the Company had good title to, and was the sole owner of, each
        Mortgage   Loan   free   and   clear of any   pledge,   lien,   encumbrance   or
        security    interest    (other   than   rights   to   servicing    and   related
        compensation)   and such assignment   validly   transfers   ownership of the
        Mortgage   Loans to the   Trustee   free and   clear   of any   pledge,   lien,
        encumbrance or security interest;

(ix)     Approximately 83.70% of the Mortgage Loans by aggregate Stated Principal
        Balance as of the Cut-off   Date were   underwritten   under a reduced loan
        documentation   program,   approximately   0.28% of the   Mortgage   Loans by
        aggregate   Stated   Principal    Balance   as   of   the   Cut-off   Date   were
        underwritten under a no-stated income program,   and approximately   0.66%
        of the Mortgage Loans by aggregate   Stated   Principal   Balance as of the
        Cut-off Date were underwritten under a no income/no asset program;

(x)      Except with respect to   approximately   12.47% of the   Mortgage   Loans by
        aggregate Stated Principal Balance as of the Cut-off Date, the Mortgagor
        represented in its loan application with respect to the related Mortgage
        Loan that the Mortgaged Property would be owner-occupied;

(xi)     None of the Mortgage Loans is a Buy-Down Mortgage Loan;

(xii)    Each   Mortgage   Loan   constitutes   a qualified   mortgage   under   Section
        860G(a)(3)(A)    of    the    Code    and    Treasury     Regulation    Section
        1.860G-2(a)(1),   (2), (4), (5), (6), (7) and (9) without reliance on the
        provisions of Treasury   Regulation   Section   1.860G-2(a)(3)   or Treasury
        Regulation   Section   1.860G-2(f)(2)   or any other   provision   that would
        allow   a   Mortgage   Loan   to   be   treated   as   a   "qualified    mortgage"
         notwithstanding    its   failure   to   meet   the   requirements   of   Section
        860G(a)(3)(A)    of    the    Code    and    Treasury     Regulation    Section
        1.860G-2(a)(1), (2), (4), (5), (6), (7) and (9);

(xiii)   A policy of title   insurance   was   effective   as of the   closing of each
        Mortgage   Loan and is valid and   binding   and   remains in full force and
        effect, unless the Mortgaged Properties are located in the State of Iowa
        and an   attorney's   certificate   has been   provided as   described in the
        Program Guide;

(xiv)    None of the Mortgage Loans is a Cooperative Loan;

(xv)     With respect to each   Mortgage   Loan   originated   under a   "streamlined"
        Mortgage   Loan program   (through   which no new or updated   appraisals of
        Mortgaged   Properties   are obtained in connection   with the   refinancing
        thereof),   the related Seller has represented   that either (a) the value
        of the related   Mortgaged   Property as of the date the Mortgage Loan was
        originated was not less than the appraised value of such property at the
        time   of   origination   of   the   refinanced   Mortgage   Loan   or   (b)   the
        Loan-to-Value   Ratio of the Mortgage Loan as of the date of   origination
         of   the   Mortgage   Loan   generally   meets   the   Company's    underwriting
        guidelines;

(xvi)    Interest on each   Mortgage   Loan is calculated on the basis of a 360-day
        year consisting of twelve 30-day months;

(xvii)   None of the   Mortgage   Loans   contain   in the   related   Mortgage   File a
        Destroyed Mortgage Note;

(xviii) None of the Mortgage Loans has been made to an International Borrower;

(xix)    No Mortgage   Loan provides for payments that are subject to reduction by
        withholding   taxes levied by any foreign   (non-United   States) sovereign
        government; and

(xx)     None of the Mortgage Loans are Additional   Collateral   Loans and none of
        the Mortgage Loans are Pledged Asset Loans.

It is understood and agreed that the representations and warranties set forth in
this Section 2.03(b) shall survive delivery of the respective   Mortgage Files to
the Trustee or any Custodian.

        Upon discovery by any of the Company,   the Master Servicer,   the Trustee
or any Custodian of a breach of any of the   representations   and   warranties set
forth   in this   Section   2.03(b)   that   materially   and   adversely   affects   the
interests of the   Certificateholders in any Mortgage Loan, the party discovering
such breach shall give prompt written notice to the other parties (any Custodian
being so obligated under a Custodial Agreement);   provided, however, that in the
event of a breach   of the   representation   and   warranty   set   forth in   Section
2.03(b)(xii),   the party   discovering   such breach shall give such notice within
five days of discovery. Within 90 days of its discovery or its receipt of notice
of   breach,   the   Company   shall   either   (i) cure such   breach in all   material
respects or (ii) purchase such Mortgage Loan from the Trust Fund at the Purchase
Price and in the manner set forth in Section   2.02;   provided   that the   Company
shall have the option to   substitute   a Qualified   Substitute   Mortgage   Loan or
Loans   for such   Mortgage   Loan if such   substitution   occurs   within   two years
following the Closing Date;   provided that if the omission or defect would cause
the Mortgage Loan to be other than a "qualified   mortgage" as defined in Section
860G(a)(3) of the Code,   any such cure or   repurchase   must occur within 90 days
from the date   such   breach   was   discovered.   Any   such   substitution   shall be
effected   by the   Company   under the same terms and   conditions   as   provided in
Section 2.04 for   substitutions   by   Residential   Funding.   It is understood and
agreed that the   obligation of the Company to cure such breach or to so purchase
or   substitute   for any Mortgage Loan as to which such a breach has occurred and
is continuing shall constitute the sole remedy   respecting such breach available
to the   Certificateholders   or the Trustee on behalf of the   Certificateholders.
Notwithstanding   the   foregoing,   the   Company   shall   not be   required   to cure
breaches   or   purchase   or   substitute   for   Mortgage   Loans as provided in this
Section   2.03(b) if the   substance of the breach of a   representation   set forth
above also constitutes fraud in the origination of the Mortgage Loan.

Section 2.04 Representations and Warranties of Sellers. (See Section 2.04 of the
        Standard Terms)

Section 2.05    Execution   and    Authentication    of    Certificates/Issuance    of
        Certificates Evidencing Interests in REMIC I Certificates.

        The Trustee   acknowledges the assignment to it of the Mortgage Loans and
the   delivery   of the   Mortgage   Files to it, or any   Custodian   on its   behalf,
subject to any exceptions noted, together with the assignment to it of all other
assets included in the Trust Fund and/or the applicable REMIC,   receipt of which
is   hereby   acknowledged.   Concurrently   with   such   delivery   and   in   exchange
therefor,   the Trustee,   pursuant to the written request of the Company executed
by an officer of the Company,   has executed and caused to be   authenticated   and
delivered   to or upon the order of the   Company   the Class R-I   Certificates   in
authorized   denominations which together with the Uncertificated REMIC I Regular
Interests, evidence the beneficial interest in REMIC I.

Section 2.06 Conveyance of Uncertificated REMIC I Regular Interests;   Acceptance
        by the Trustee.

        The Company, as of the Closing Date, and concurrently with the execution
and delivery hereof,   does hereby assign without   recourse all the right,   title
and   interest   of the   Company   in and to the   Uncertificated   REMIC   I   Regular
Interests   to the   Trustee   for the   benefit   of the   Holders   of each   Class of
Certificates (other than the Class R-I Certificates).   The Trustee   acknowledges
receipt of the   Uncertificated   REMIC I Regular   Interests   and declares that it
holds and will hold the same in trust for the   exclusive   use and benefit of all
present and future Holders of each Class of   Certificates   (other than the Class
R-I   Certificates).   The rights of the   Holders   of each   Class of   Certificates
(other than the Class R Certificates) to receive distributions from the proceeds
of REMIC II in respect   of such   Classes,   and all   ownership   interests   of the
Holders   of such   Classes in such   distributions,   shall be as set forth in this
Agreement.

Section 2.07 Issuance of Certificates Evidencing Interest in REMIC II.

        The Trustee   acknowledges   the   assignment   to it of the   Uncertificated
REMIC I Regular   Interests,   concurrently   therewith   and in exchange   therefor,
pursuant   to the written   request of the   Company   executed by an officer of the
Company,   the Trustee has executed and caused to be authenticated   and delivered
to or upon the order of the Company, all Classes of Certificates (other than the
Class   R-I   Certificates    and   the   Class   R-II    Certificates)   in   authorized
denominations, which evidence the beneficial interest in the entire REMIC II.

Section 2.08 Purposes and Powers of the Trust. (See Section 2.08 of the Standard
        Terms).



<PAGE>

ARTICLE III

                          ADMINISTRATION AND SERVICING
                                 OF MORTGAGE LOANS



        Section 3.01 Master   Servicer to Act as   Servicer.   (See Section 3.01 of
                the Standard Terms)

        Section 3.02   Subservicing    Agreements    Between   Master   Servicer   and
                 Subservicers;    Enforcement    of    Subservicers'    and   Sellers'
                Obligations. (See Section 3.02 of the Standard Terms)

        Section 3.03 Successor   Subservicers.   (See Section 3.03 of the Standard
                Terms)

        Section 3.04 Liability of the Master Servicer.   (See Section 3.04 of the
                Standard Terms)

        Section 3.05 No Contractual Relationship Between Subservicer and Trustee
                or Certificateholders. (See Section 3.05 of the Standard Terms)

        Section 3.06   Assumption or   Termination of   Subservicing   Agreements by
                Trustee. (See Section 3.06 of the Standard Terms)

        Section 3.07   Collection of Certain   Mortgage Loan Payments;   Deposit to
                Custodial Account.

        (a)            (See Section 3.07(a) of the Standard Terms)

        (b)      The Master   Servicer   shall   establish   and maintain a Custodial
                Account in which the Master   Servicer   shall deposit or cause to
                 be deposited on a daily basis, except as otherwise   specifically
                provided herein, the following payments and collections remitted
                by   Subservicers   or received   by it in respect of the   Mortgage
                Loans   subsequent   to the Cut-off Date (other than in respect of
                principal   and interest on the   Mortgage   Loans due on or before
                the Cut-off Date):

               (i) All   payments on account of   principal,   including   Principal
        Prepayments   made by Mortgagors on the Mortgage   Loans and the principal
        component of any Subservicer   Advance or of any REO Proceeds received in
        connection   with   an REO   Property   for   which   an REO   Disposition   has
        occurred;

               (ii) All payments on account of interest at the Adjusted Mortgage
        Rate on the Mortgage   Loans,   including   Buydown Funds,   if any, and the
        interest   component   of any   Subservicer   Advance or of any REO Proceeds
         received in connection with an REO Property for which an REO Disposition
        has occurred;

               (iii) Insurance Proceeds,   Subsequent   Recoveries and Liquidation
        Proceeds (net of any related expenses of the Subservicer);

                (iv) All proceeds of any   Mortgage   Loans   purchased   pursuant to
        Section   2.02,   2.03,   2.04 or 4.07   (including   amounts   received   from
        Residential   Funding   pursuant to the last paragraph of Section 4 of the
        Assignment   Agreement   in respect of any   liability,   penalty or expense
        that resulted from a breach of the Compliance   With Laws   Representation
        and   all   amounts   required   to be   deposited   in   connection   with   the
        substitution of a Qualified Substitute Mortgage Loan pursuant to Section
        2.03 or 2.04;

               (v) Any   amounts   required   to be   deposited   pursuant to Section
        3.07(c) or 3.21;

               (vi) All amounts   transferred from the Certificate Account to the
        Custodial Account in accordance with Section 4.02(a);

               (vii) Any amounts realized by the Subservicer and received by the
        Master Servicer in respect of any Additional Collateral;

               (viii) Any amounts   received by the Master Servicer in respect of
        Pledged Assets; and

               (ix) Any amounts   received by the Master   Servicer in   connection
        with any Prepayment Charges on the Prepayment Charge Loans.

        The foregoing requirements for deposit in the Custodial Account shall be
exclusive,   it being understood and agreed that, without limiting the generality
of the foregoing, payments on the Mortgage Loans which are not part of the Trust
Fund   (consisting   of   payments   in respect of   principal   and   interest   on the
Mortgage Loans due on or before the Cut-off Date) and payments or collections in
the   nature   of late   payment   charges   or   assumption   fees may but need not be
deposited   by the Master   Servicer in the   Custodial   Account.   In the event any
amount not required to be deposited in the   Custodial   Account is so   deposited,
the Master   Servicer   may at any time   withdraw   such amount from the   Custodial
Account, any provision herein to the contrary notwithstanding.   Amounts received
by the Master Servicer in connection   with Prepayment   Charges on the Prepayment
Charge Loans shall be remitted by the Master Servicer on the Certificate Account
Deposit Date to the Trustee. The Custodial Account may contain funds that belong
to one or more trust funds   created for mortgage   pass-through   certificates   of
other series and may contain other funds   respecting   payments on mortgage loans
belonging to the Master   Servicer or serviced or master serviced by it on behalf
of others.   Notwithstanding such commingling of funds, the Master Servicer shall
keep   records   that   accurately   reflect   the funds on deposit in the   Custodial
Account that have been   identified by it as being   attributable   to the Mortgage
Loans.

        With respect to Insurance Proceeds,   Liquidation Proceeds,   REO Proceeds
and the proceeds of the purchase of any Mortgage Loan pursuant to Sections 2.02,
2.03,   2.04 and 4.07   received in any calendar   month,   the Master   Servicer may
elect to treat such amounts as included in the Available Distribution Amount for
the Distribution Date in the month of receipt, but is not obligated to do so. If
the Master Servicer so elects, such amounts will be deemed to have been received
(and any related Realized Loss shall be deemed to have occurred) on the last day
of the month prior to the receipt thereof.

        (c)            (See Section 3.07(c) of the Standard Terms)

        (d)            (See Section 3.07(d) of the Standard Terms)

        (e) Notwithstanding Section 3.07(a), The Master Servicer shall not waive
(or   permit a   Subservicer   to waive)   any   Prepayment   Charge   unless:   (i) the
enforceability   thereof   shall   have been   limited   by   bankruptcy,   insolvency,
moratorium,   receivership   and other similar laws relating to creditors'   rights
generally,   (ii) the   enforcement   thereof is   illegal,   or any local,   state or
federal   agency   has   threatened   legal   action   if the   prepayment   penalty   is
enforced,   (iii) the   collectability   thereof   shall   have been   limited   due to
acceleration   in connection with a foreclosure or other   involuntary   payment or
(iv) such waiver is standard and customary in servicing   similar   Mortgage Loans
and relates to a default or a reasonably   foreseeable   default and would, in the
reasonable judgment of the Master Servicer,   maximize recovery of total proceeds
taking into account the value of such Prepayment Charge and the related Mortgage
Loan.   In no   event   will the   Master   Servicer   waive a   Prepayment   Charge   in
connection   with a   refinancing   of a   Mortgage   Loan that is not   related   to a
default or a reasonably   foreseeable   default. If a Prepayment Charge is waived,
but does not meet the standards   described   above,   then the Master   Servicer is
required to remit the amount of such waived   Prepayment Charge to the Trustee at
the time that the amount prepaid on the related   Mortgage Loan is required to be
deposited into the Custodial Account.
  Notwithstanding   any other   provisions of this Agreement,   any payments made by
the Master Servicer in respect of any waived Prepayment Charges pursuant to this
Section shall be deemed to be paid outside of the Trust Fund and not part of any
REMIC.

        Section 3.08.   Subservicing   Accounts;   Servicing   Accounts (See Section
                3.08 of the Standard Terms)

        Section 3.09. Access to Certain   Documentation and Information Regarding
                the Mortgage Loans (See Section 3.09 of the Standard Terms)

        Section 3.10.   Permitted   Withdrawals   from the   Custodial   Account (See
                Section 3.10 of the Standard Terms)

        Section 3.11. Maintenance of the Primary Insurance Policies; Collections
                Thereunder (See Section 3.011 of the Standard Terms)

        Section 3.12.   Maintenance   of Fire Insurance and Omissions and Fidelity
                Coverage (See Section 3.12 of the Standard Terms)

        Section 3.13.    Enforcement   of   Due-on-Sale   Clauses;    Assumption   and
                Modification   Agreements;   Certain Assignments (See Section 3.13
                of the Standard Terms)

        Section 3.14.   Realization   Upon   Defaulted   Mortgage Loans (See Section
                3.14 of the Standard Terms)

        Section 3.15.   Trustee   to   Cooperate;   Release of   Mortgage   Files (See
                Section 3.15 of the Standard Terms)

        Section 3.16. Servicing and Other Compensation; Compensating Interest

               (a) (See Section 3.16(a) of the Standard Terms)

               (b) Additional   servicing   compensation in the form of assumption
        fees,   late   payment   charges,   investment   income   on   amounts   in   the
        Custodial   Account   or the   Certificate   Account or   otherwise   (but not
        including   Prepayment   Charges) shall be retained by the Master Servicer
        or the Subservicer to the extent provided herein,   subject to clause (e)
        below.

               (c) (See Section 3.16(c) of the Standard Terms)

               (d) (See Section 3.16(d) of the Standard Terms)

               (e) (See Section 3.16(e) of the Standard Terms)

        Section 3.17.   Reports to the Trustee and the Company   (See Section 3.17
                of the Standard Terms)

        Section 3.18. Annual Statement as to Compliance (See Section 3.18 of the
                 Standard Terms)

        Section 3.19. Annual   Independent Public   Accountants'   Servicing Report
                (See Section 3.19 of the Standard Terms)

        Section 3.20.   Rights of the   Company in Respect of the Master   Servicer
                 (See Section 3.20 of the Standard Terms)

        Section 3.21.   Administration   of Buydown Funds (See Section 3.21 of the
                Standard Terms)

        Section 3.22   Advance Facility (See Section 3.2 of the Standard Terms)



<PAGE>




ARTICLE IV

                         PAYMENTS TO CERTIFICATEHOLDERS

Section 4.01    Certificate Account.   (See Section 4.01 of the Standard Terms)

Section 4.02    Distributions.

(a)      On each   Distribution   Date (x) the   Master   Servicer   on   behalf of the
        Trustee   or   (y)   the   Paying   Agent   appointed   by the   Trustee,   shall
        distribute,   to the   Master   Servicer,   in the   case   of a   distribution
        pursuant to Section 4.02(a)(iii) below, and to each Certificateholder of
        record on the next   preceding   Record   Date   (other   than as provided in
        Section   9.01   respecting   the   final    distribution),    either   (1)   in
        immediately   available   funds (by wire   transfer   or   otherwise)   to the
        account   of such   Certificateholder   at a bank or   other   entity   having
        appropriate   facilities   therefor,   if   such   Certificateholder   has   so
        notified the Master Servicer or the Paying Agent, as the case may be, or
        (2) if such Certificateholder has not so notified the Master Servicer or
        the   Paying   Agent   by   the   Record   Date,    by   check   mailed   to   such
        Certificateholder   at   the   address   of   such   Holder   appearing   in the
        Certificate Register, such Certificateholder's   share (which share shall
        be based on the aggregate of the   Percentage   Interests   represented   by
        Certificates   of the   applicable   Class   held   by   such   Holder)   of the
        following   amounts,   in the following order of priority   (subject to the
        provisions of Sections   4.02(b) and 4.02(c) below),   in each case to the
        extent of the related Available Distribution Amount:

(i)      (U) from the Available Distribution Amount related to the Group I Loans,
        to the Group I Certificates   and the Class X-IO   Certificates,   on a pro
        rata basis based on the   Accrued   Certificate   Interest   payable on such
        Classes of Certificates with respect to such Distribution   Date, Accrued
        Certificate    Interest   on   such   Classes   of    Certificates    for   such
        Distribution   Date,   plus   any   Accrued   Certificate    Interest   thereon
        remaining unpaid from any previous   Distribution Date except as provided
        in the last   paragraph   of this   Section   4.02(a)   (the   "Group I Senior
        Interest   Distribution    Amount");    provided,    however,   that   amounts
        distributable   to Holders of the Class X-IO   Certificates   in respect of
        Accrued Certificate   Interest will be reduced to the extent necessary to
        pay any Carryover   Shortfall   Amount on the Class A, Class M and Class B
        Certificates on the   Distribution   Date (after giving effect to payments
        made   pursuant   to the Yield   Maintenance   Agreement   and the   Carryover
        Shortfall   Reserve   Fund) and such   amounts will be paid to the Class A,
        Class M and Class B Certificates   on a pro rata basis in accordance with
        their respective Carryover Shortfall Amounts derived from Loan Group I;

                      (V) from the Available   Distribution Amount related to the
        Group   II   Loans,   to the   Group   II   Certificates   and the   Class   X-IO
        Certificates,   on a pro   rata   basis   based on the   Accrued   Certificate
        Interest   payable on such Classes of   Certificates   with respect to such
        Distribution   Date,   Accrued   Certificate   Interest   on such   Classes of
        Certificates for such   Distribution   Date, plus any Accrued   Certificate
        Interest thereon   remaining unpaid from any previous   Distribution   Date
        except as provided in the last   paragraph of this   Section   4.02(a) (the
        "Group II Senior Interest Distribution Amount"); provided, however, that
        amounts   distributable   to   Holders of the Class   X-IO   Certificates   in
        respect of Accrued   Certificate   Interest   will be reduced to the extent
        necessary to pay any Carryover   Shortfall Amount on the Class A, Class M
        and Class B Certificates on the   Distribution   Date (after giving effect
        to payments   made   pursuant to the Yield   Maintenance   Agreement and the
        Carryover   Shortfall   Reserve Fund) and such amounts will be paid to the
        Class   A,   Class M and   Class B   Certificates   on a pro   rata   basis   in
        accordance with their   respective   Carryover   Shortfall   Amounts derived
        from Loan Group II;

(ii)     to the related   Senior   Certificates,   in the priorities and amounts set
        forth in Section   4.02(b) and (c), the sum of the following   (applied to
        reduce the Certificate   Principal Balances of such Senior   Certificates,
        as applicable):

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

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

(2)      except   to   the   extent   applied   to   offset   Deferred   Interest   on any
        Distribution   Date, the Stated Principal Balance of any Mortgage Loan in
        the related Loan Group repurchased   during the preceding   calendar month
        (or   deemed to have   been so   repurchased   in   accordance   with   Section
        3.07(b))   pursuant to Section 2.02, 2.03, 2.04 or 4.07 and the amount of
        any shortfall   deposited in the Custodial Account in connection with the
        substitution of a Deleted Mortgage Loan pursuant to Section 2.03 or 2.04
        during the preceding calendar month; and

(3)      except   to   the   extent   applied   to   offset   Deferred   Interest   on any
        Distribution   Date,   the   principal   portion   of all   other   unscheduled
        collections with respect to the related Loan Group (other than Principal
        Prepayments in Full and   Curtailments and amounts received in connection
        with a Cash   Liquidation   or REO   Disposition   of a Mortgage Loan in the
        related Loan Group   described in Section   4.02(a)(ii)(B)   of this Series
        Supplement, including without limitation any related Insurance Proceeds,
        Liquidation Proceeds and REO Proceeds), including Subsequent Recoveries,
        received during the preceding   calendar month (or deemed to have been so
        received in accordance   with Section   3.07(b)) to the extent   applied by
        the Master   Servicer as recoveries of principal of the related   Mortgage
        Loan pursuant to Section 3.14 of the Standard Terms;

(B)      except   to   the   extent   applied   to   offset   Deferred   Interest   on any
        Distribution   Date,   with respect to each   Mortgage   Loan in the related
        Loan Group for which a Cash   Liquidation or a REO   Disposition   occurred
         during the   preceding   calendar   month (or was   deemed to have   occurred
        during such   period in   accordance   with   Section   3.07(b))   and did not
        result in any Excess Special Hazard Losses,   Excess Fraud Losses, Excess
        Bankruptcy Losses or Extraordinary Losses, an amount equal to the lesser
        of (a) the related Senior   Percentage for such   Distribution   Date times
        the Stated   Principal   Balance of such Mortgage Loan and (b) the related
        Senior   Accelerated   Distribution   Percentage for such Distribution Date
        times the related unscheduled   collections (including without limitation
        Insurance Proceeds, Liquidation Proceeds and REO Proceeds) to the extent
        applied by the Master Servicer as recoveries of principal of the related