NORWEST ASSET SECURITIES CORP MORT PASS THR CERT SER 1997-01
8-K, 1997-10-24
ASSET-BACKED SECURITIES
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934



Date of Report:  January 30, 1997
(Date of earliest event reported)

Commission File No. 333-21263




                      Norwest Asset Securities Corporation
                      ------------------------------------




              Delaware                                   52-1972128
              --------                                   ----------
    (State of Incorporation)               (I.R.S. Employer Identification No.)




5325 Spectrum Drive, Frederick, Maryland                         21703
- ---------------------------------------------------        ----------------
    Address of principal executive offices                     (Zip Code)




                                 (301) 846-8881
                                 --------------
               Registrant's Telephone Number, including area code





              ----------------------------------------------------
              (Former name, former address and former fiscal year,
                          if changed since last report)



<PAGE>



ITEM 5.  Other Events
         ------------

     On January 30,  1997,  Norwest  Asset  Securities  Corporation,  a Delaware
corporation (the "Registrant"),  sold Mortgage Pass-Through Certificates, Series
1997-1,  Class A-1, Class A-2, Class A-3, Class A-4, Class A-5, Class A-6, Class
A-7,  Class A-8,  Class A-PO,  Class A-R,  Class M, Class B-1 and Class B-2 (the
"Offered  Certificates"),  having an  aggregate  original  principal  balance of
$183,641,212.03.  The Offered Certificates were issued pursuant to a Pooling and
Servicing Agreement, dated as of January 30, 1997, among the Registrant, Norwest
Bank Minnesota,  National Association, as master servicer (the "Master Servicer"
or "Norwest Bank"),  Firstar Trust Company, as trustee, and First Union National
Bank of North Carolina,  as trust  administrator  (the  "Agreement"),  a copy of
which is filed as an exhibit hereto. Mortgage Pass-Through Certificates,  Series
1997-1,  Class  B-3,  Class  B-4 and Class  B-5,  having  an  aggregate  initial
principal  balance of $1,388,250.48  (the "Private  Certificates"  and, together
with the Offered Certificates, the "Certificates"), were also issued pursuant to
the Agreement.

     As of the date of initial issuance,  the Offered Certificates  evidenced an
approximate  99.25%  undivided  interest in a trust fund (the  "Trust  Estate"),
consisting principally of a pool of fixed interest rate,  conventional,  monthly
pay,  fully-amortizing,  one-to  four-family  residential  first mortgage loans,
other than the Fixed  Retained  Yield (as defined in the  Agreement),  which may
include loans secured by shares issued by cooperative housing corporations.  The
remaining  undivided  interests in the Trust Estate are evidenced by the Private
Certificates,  distributions  on which are  subordinated to distributions on the
Offered Certificates.

     Interest   on  the  Offered   Certificates   (other  than  the  Class  A-PO
Certificates)  will be distributed on each  Distribution Date (as defined in the
Agreement).  Monthly  distributions in reduction of the principal balance of the
Offered Certificates will be allocated to the Offered Certificates in accordance
with the priorities set forth in the Agreement. Distributions of interest and in
reduction  of  principal  balance on any  Distribution  Date will be made to the
extent that the Pool Distribution Amount is sufficient therefor.

     An  election  will be made to treat the  Trust  Estate  as two  REMICs  for
federal  income tax purposes (the  "Upper-Tier  REMIC" and  "Lower-Tier  REMIC,"
respectively).  The Class A-1, Class A-2, Class A-3, Class A-4, Class A-5, Class
A-6,  Class A-7,  Class A--8,  Class A-PO,  Class M, Class B-1, Class B-2, Class
B-3, Class B-4 and Class B-5 Certificates will be treated as "regular interests"
in the  Upper-Tier  REMIC and the Class A-R and Class A-LR  Certificate  will be
treated as the  "residual  interests"  in the  Upper-Tier  REMIC and  Lower-Tier
REMIC, respectively.



<PAGE>



ITEM 7.  Financial Statements and Exhibits
         ---------------------------------

         (c) Exhibits

Item 601(a)
of Regulation S-K
Exhibit No.                           Description
- -----------                           -----------

         (EX-4)                       Pooling    and    Servicing
                                      Agreement,   dated   as  of
                                      January  30,  1997,   among
                                      Norwest  Asset   Securities
                                      Corporation,  Norwest  Bank
                                      Minnesota,         National
                                      Association,  Firstar Trust
                                      Company,  as  trustee,  and
                                      First Union  National  Bank
                                      of North Carolina, as trust
                                      administrator.



<PAGE>



     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                                         NORWEST ASSET SECURITIES CORPORATION

January 30, 1997

                                          /s/ B. David Bialzak
                                          --------------------
                                          B. David Bialzak
                                          Vice President




<PAGE>




                                INDEX TO EXHIBITS
                                -----------------



                                                                  Paper (P) or
Exhibit No.    Description                                        Electronic (E)
- -----------    -----------                                        --------------


   (EX-4)      Pooling and Servicing                                E
               Agreement, dated as of January 30, 1997 among
               Norwest Asset Securities Corporation, Norwest Bank
               Minnesota, National Association, Firstar Trust
               Company, as trustee, and First Union National Bank
               of North Carolina, as trust administrator.




<PAGE>






Execution Copy

                      NORWEST ASSET SECURITIES CORPORATION

                                    (Seller)

                                       and

                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION

                                (Master Servicer)

                                       and

                              FIRSTAR TRUST COMPANY

                                    (Trustee)

                                       and

                   FIRST UNION NATIONAL BANK OF NORTH CAROLINA

                              (Trust Administrator)



                         POOLING AND SERVICING AGREEMENT

                          Dated as of January 30, 1997

                                 $185,029,462.51




                       Mortgage Pass-Through Certificates
                                  Series 1997-1




<PAGE>


     This Pooling and Servicing Agreement, dated as of January 30, 1997 executed
by NORWEST ASSET  SECURITIES  CORPORATION,  as Seller,  NORWEST BANK  MINNESOTA,
NATIONAL ASSOCIATION,  as Master Servicer, FIRSTAR TRUST COMPANY, as Trustee and
FIRST UNION NATIONAL BANK OF NORTH CAROLINA, as Trust Administrator.


                                WITNESSETH THAT:

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

                                    ARTICLE I

                                   DEFINITIONS

Section 1.01.       Definitions.

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

     Accepted Master Servicing  Practices:  Accepted Master Servicing  Practices
shall consist of the customary and usual master  servicing  practices of prudent
master servicing  institutions  which service mortgage loans of the same type as
the  Mortgage  Loans  in  the  jurisdictions  in  which  the  related  Mortgaged
Properties are located,  regardless of the date upon which the related  Mortgage
Loans were originated.

     Accretion  Termination  Date:  The  earlier  of (i) the  Distribution  Date
following the Distribution Date on which the Class A Subclass  Principal Balance
of the Class A-6  Certificates  has been reduced to zero or (ii) the  Cross-Over
Date.

     Adjusted Pool Amount:  With respect to any  Distribution  Date, the Cut-Off
Date Aggregate  Principal Balance of the Mortgage Loans minus the sum of (i) all
amounts in respect  of  principal  received  in  respect of the  Mortgage  Loans
(including,  without limitation,  amounts received as Monthly Payments, Periodic
Advances, Unscheduled Principal Receipts and Substitution Principal Amounts) and
distributed to Holders of the  Certificates  on such  Distribution  Date and all
prior  Distribution  Dates and (ii) the principal portion of all Realized Losses
(other than Debt Service  Reductions)  incurred on the  Mortgage  Loans from the
Cut-Off Date through the end of the month preceding such Distribution Date.

     Adjusted Pool Amount (PO Portion):  With respect to any Distribution  Date,
the sum of the amounts,  calculated as follows,  with respect to all Outstanding
Mortgage  Loans:  the product of (i) the PO Fraction for each such Mortgage Loan
and (ii)  the  remainder  of (A) the  Cut-Off  Date  Principal  Balance  of such
Mortgage  Loan minus (B) the sum of (x) all  amounts  in  respect  of  principal
received  in respect  of such  Mortgage  Loan  (including,  without  limitation,
amounts received as Monthly Payments,  Periodic Advances,  Unscheduled Principal
Receipts and Substitution  Principal  Amounts) and distributed to Holders of the
Certificates on such Distribution Date and all prior  Distribution Dates and (y)
the principal portion of any Realized Loss (other than a Debt Service Reduction)
incurred  on such  Mortgage  Loan from the Cut-Off  Date  through the end of the
month preceding such Distribution Date.

     Adjusted  Principal  Balance:  As to any Distribution  Date and the Class M
Certificates  or any Class B  Subclass,  the greater of (A) zero and (B) (i) the
principal  balance of such Class or Subclass  with respect to such  Distribution
Date minus (ii) the  Adjustment  Amount for such  Distribution  Date less,  with
respect to the Class M  Certificates,  the Class B  Principal  Balance  or, with
respect to any Class B Subclass, the Class B Subclass Principal Balances for any
Class B Subclasses with higher numerical designations.

     Adjustment  Amount:  For any Distribution  Date, the difference between (A)
the sum of the Class A Principal Balance,  Class M Principal Balance and Class B
Principal  Balance as of the related  Determination  Date and (B) the sum of (i)
the sum of the Class A Principal Balance,  Class M Principal Balance and Class B
Principal  Balance as of the  Determination  Date succeeding  such  Distribution
Date, (ii) the principal  portion of Excess Special Hazard Losses,  Excess Fraud
Losses and Excess  Bankruptcy  Losses allocated to the Certificates with respect
to such  Distribution  Date and (iii) the aggregate  amount that would have been
distributed  to all Classes as principal in accordance  with Section  4.01(a)(i)
for such  Distribution Date without regard to the provisos in the definitions of
Class M Optimal Principal Amount,  Class B-1 Optimal Principal Amount, Class B-2
Optimal Principal Amount,  Class B-3 Optimal Principal Amount, Class B-4 Optimal
Principal Amount and Class B-5 Optimal Principal Amount.

     Aggregate Current Bankruptcy Losses: With respect to any Distribution Date,
the sum of all  Bankruptcy  Losses  incurred on any of the Mortgage Loans in the
month preceding the month of such Distribution Date.

     Aggregate Current Fraud Losses:  With respect to any Distribution Date, the
sum of all  Fraud  Losses  incurred  on any of the  Mortgage  Loans in the month
preceding the month of such Distribution Date.

     Aggregate  Current Special Hazard Losses:  With respect to any Distribution
Date, the sum of all Special Hazard Losses incurred on any of the Mortgage Loans
in the month preceding the month of such Distribution Date.

     Aggregate  Foreclosure  Profits: As to any Distribution Date, the aggregate
amount of Foreclosure Profits with respect to all of the Mortgage Loans.

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

     Applicable  Unscheduled  Principal  Receipt  Period:  With  respect  to the
Mortgage Loans serviced by each Servicer and each of Full Unscheduled  Principal
Receipts and Partial Unscheduled  Principal Receipts,  the Unscheduled Principal
Receipt Period  specified on Schedule I hereto,  as amended from time to time by
the Master Servicer pursuant to Section 10.01(b) hereof.

     Authenticating  Agent:  Any  authenticating  agent  appointed  by the Trust
Administrator   pursuant  to  Section   8.11.   There  shall   initially  be  no
Authenticating Agent for the Certificates.

     Available Master Servicer  Compensation:  As to any Distribution  Date, the
sum of (a) the Master  Servicing Fee for such  Distribution  Date,  (b) interest
earned  through the business day preceding the applicable  Distribution  Date on
any  Prepayments  in Full remitted to the Master  Servicer and (c) the aggregate
amount of Month End Interest  remitted by the  Servicers to the Master  Servicer
pursuant to the related Servicing Agreements.

     Bankruptcy Code: The Bankruptcy Code of 1978, as amended.

     Bankruptcy  Loss: With respect to any Mortgage Loan, a Deficient  Valuation
or Debt Service Reduction;  provided,  however, that a Bankruptcy Loss shall not
be deemed a Bankruptcy  Loss  hereunder so long as the  applicable  Servicer has
notified the Master  Servicer and the Trust  Administrator  in writing that such
Servicer is diligently  pursuing any remedies that may exist in connection  with
the  representations and warranties made regarding the related Mortgage Loan and
either (A) the related  Mortgage  Loan is not in default with regard to payments
due  thereunder or (B)  delinquent  payments of principal and interest under the
related  Mortgage  Loan  and  any  premiums  on any  applicable  primary  hazard
insurance  policy and any related  escrow  payments in respect of such  Mortgage
Loan are being  advanced  on a current  basis by such  Servicer  without  giving
effect to any Debt Service Reduction.

     Bankruptcy  Loss  Amount:  As of any  Distribution  Date prior to the first
anniversary of the Cut-Off Date, the Bankruptcy  Loss Amount will equal $100,000
minus the aggregate amount of Bankruptcy  Losses allocated solely to the Class B
Certificates  or,  following the  reduction of the Class B Principal  Balance to
zero,  solely to the Class M  Certificates  in accordance  with Section  4.02(a)
since  the  Cut-Off  Date.  As of any  Distribution  Date on or after  the first
anniversary  of the Cut-Off  Date,  an amount equal to (1) the lesser of (a) the
Bankruptcy  Loss Amount  calculated  as of the close of business on the Business
Day  immediately  preceding  the most recent  anniversary  of the  Cut-Off  Date
coinciding with or preceding such Distribution Date (the "Relevant Anniversary")
and (b) such lesser amount which, as determined on the Relevant Anniversary will
not cause any rated  Certificates  to be placed on credit  review  status (other
than for possible  upgrading)  by either  Rating  Agency minus (2) the aggregate
amount of Bankruptcy  Losses  allocated  solely to the Class B Certificates  or,
following the reduction of the Class B Principal  Balance to zero, solely to the
Class M  Certificates  in  accordance  with Section  4.02(a)  since the Relevant
Anniversary.  On and after the Cross-Over  Date the Bankruptcy Loss Amount shall
be zero.

     Beneficial Owner: With respect to a Book-Entry Certificate,  the Person who
is the  beneficial  owner of such  Book-Entry  Certificate,  as reflected on the
books of the Clearing Agency, or on the books of a Person maintaining an account
with such Clearing Agency (directly or as an indirect participant, in accordance
with the rules of such Clearing Agency), as the case may be.

     Book-Entry  Certificate:  Any of the  Class  A-1  Certificates,  Class  A-2
Certificates,   Class  A-3  Certificates,  Class  A-4  Certificates,  Class  A-6
Certificates,  Class  A-7  Certificates  or Class A-8  Certificates,  beneficial
ownership and  transfers of which shall be evidenced by, and made through,  book
entries by the Clearing Agency as described in Section 5.01(b).

     Business  Day:  Any day other  than (i) a Saturday  or a Sunday,  or (ii) a
legal holiday in the City of New York, State of Iowa,  State of Maryland,  State
of  Minnesota,  State of North  Carolina or State of Wisconsin or (iii) a day on
which banking  institutions in the City of New York, or the State of Iowa, State
of Maryland,  State of Minnesota,  State of North Carolina or State of Wisconsin
are authorized or obligated by law or executive order to be closed.

     Certificate:  Any one of the Class A Certificates,  Class M Certificates or
Class B Certificates.

     Certificate  Account:  The trust account  established and maintained by the
Master  Servicer  in the name of the Master  Servicer  on behalf of the  Trustee
pursuant to Section 3.01. The Certificate Account shall be an Eligible Account.

     Certificate Register and Certificate Registrar:  Respectively, the register
maintained  pursuant to and the  registrar  provided  for in Section  5.02.  The
initial Certificate Registrar is the Trust Administrator.

     Certificateholder  or Holder:  The Person in whose  name a  Certificate  is
registered in the Certificate Register,  except that, solely for the purposes of
the taking of any action under Articles VII or VIII, any Certificate  registered
in the name of the Master Servicer, a Servicer or any affiliate thereof shall be
deemed not to be outstanding and the Voting Interest evidenced thereby shall not
be taken  into  account in  determining  whether  the  requisite  percentage  of
Certificates necessary to effect any such action has been obtained.

     Class: All  certificates  whose form is identical except for (i) variations
in the Percentage Interest evidenced thereby and (ii) in the case of the Class A
Certificates  and Class B Certificates,  variations in Subclass  designation and
other Subclass characteristics.

     Class  A  Certificate:  Any  one  of  Class  A-1  Certificates,  Class  A-2
Certificates,   Class  A-3  Certificates,  Class  A-4  Certificates,  Class  A-5
Certificate,  Class  A-6  Certificates,   Class  A-7  Certificates,   Class  A-8
Certificates,  Class  A-PO  Certificates,  Class A-R  Certificate  or Class A-LR
Certificate.

     Class A Certificateholder: The registered holder of a Class A Certificate.

     Class A Distribution  Amount:  As to any  Distribution  Date, the aggregate
amount  distributable  to the  Subclasses  of Class A  Certificates  pursuant to
Paragraphs  first,  second,  third and  fourth  of  Section  4.01(a)(i)  on such
Distribution Date.

     Class A Fixed  Pass-Through Rate: As to any Distribution Date, the rate per
annum set forth in Section 11.01.

     Class A Interest Accrual Amount:  As to any  Distribution  Date, the sum of
the Class A Subclass  Interest Accrual Amounts with respect to such Distribution
Date.

     Class A Loss Denominator:  As to any Determination Date, an amount equal to
the  sum of (i)  the  Class  A  Subclass  Principal  Balances  of  the  Class  A
Certificates  (other than the Class A-7 Certificates) and (ii) the lesser of the
Class A  Subclass  Principal  Balance  of the  Class  A-7  Certificates  and the
Original Class A Subclass Principal Balance of the Class A-7 Certificates.

     Class A Non-PO Optimal  Amount:  As to any  Distribution  Date, the sum for
such Distribution Date of (i) the Class A Interest Accrual Amount,  (ii) the sum
of the Class A Subclass Unpaid Interest Shortfalls for each Class A Subclass and
(iii) the Class A Non-PO Optimal Principal Amount.

     Class A Non-PO Optimal Principal  Amount:  As to any Distribution  Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO Fraction with respect to such Mortgage Loan, and (y) the sum of:

          (i) the Class A Percentage of (A) the principal portion of the Monthly
     Payment  due on the Due Date  occurring  in the month of such  Distribution
     Date on such Mortgage Loan, less (B) if the Bankruptcy Loss Amount has been
     reduced to zero, the principal  portion of any Debt Service  Reduction with
     respect to such Mortgage Loan;

          (ii) the Class A Prepayment  Percentage of all  Unscheduled  Principal
     Receipts  that were  received by a Servicer  with respect to such  Mortgage
     Loan during the Applicable Unscheduled Principal Receipt Period relating to
     such  Distribution  Date for each applicable type of Unscheduled  Principal
     Receipt;

          (iii) the Class A Prepayment  Percentage  of the  Scheduled  Principal
     Balance of such Mortgage Loan which,  during the month  preceding the month
     of such  Distribution  Date,  was  repurchased  by the Seller  pursuant  to
     Section 2.02 or 2.03; and

          (iv) the Class A  Percentage  of the  excess of the  unpaid  principal
     balance of such Mortgage  Loan  substituted  for a defective  Mortgage Loan
     during the month preceding the month in which such Distribution Date occurs
     over the unpaid principal balance of such defective Mortgage Loan, less the
     amount  allocable to the  principal  portion of any  unreimbursed  Periodic
     Advances previously made by the Servicer,  the Master Servicer or the Trust
     Administrator in respect of such defective Mortgage Loan.

     Class A Non-PO  Principal  Balance:  As of any date, an amount equal to the
Class A Principal  Balance  less the Class A Subclass  Principal  Balance of the
Class A-PO Certificates.

     Class A Non-PO Principal Amount: As to any Distribution Date, the aggregate
amount  distributed  in respect of the Class A Subclasses  pursuant to Paragraph
third clause (A) of Section 4.01(a)(i).

     Class A Non-PO Principal  Distribution Amount: As to any Distribution Date,
the sum of (i) the Class A-7 Accrual  Distribution  Amount, if any, with respect
to such  Distribution  Date and (ii) the Class A Non-PO  Principal  Amount  with
respect to such Distribution Date.

     Class A Percentage:  As to any  Distribution  Date occurring on or prior to
the Cross-Over Date, the lesser of (i) 100% and (ii) the percentage  obtained by
dividing  the  Class  A  Non-PO   Principal   Balance   (determined  as  of  the
Determination Date preceding such Distribution Date) by the Pool Balance (Non-PO
Portion).  As to any  Distribution  Date occurring  subsequent to the Cross-Over
Date,  100% or such  lesser  percentage  which  will  cause  the  Class A Non-PO
Principal  Balance to decline to zero  following the  distribution  made on such
Distribution Date.

     Class A Prepayment Percentage: As to any Distribution Date to and including
the  Distribution  Date in  January  2002,  100%.  As to any  Distribution  Date
subsequent  to January 2001 to and including  the  Distribution  Date in January
2003,  the  Class A  Percentage  as of such  Distribution  Date  plus 70% of the
Subordinated  Percentage as of such  Distribution  Date. As to any  Distribution
Date  subsequent  to January  2003 to and  including  the  Distribution  Date in
January 2004,  the Class A Percentage as of such  Distribution  Date plus 60% of
the Subordinated Percentage as of such Distribution Date. As to any Distribution
Date  subsequent  to January  2004 to and  including  the  Distribution  Date in
January 2005,  the Class A Percentage as of such  Distribution  Date plus 40% of
the Subordinated Percentage as of such Distribution Date. As to any Distribution
Date  subsequent  to January  2005 to and  including  the  Distribution  Date in
January 2006,  the Class A Percentage as of such  Distribution  Date plus 20% of
the Subordinated Percentage as of such Distribution Date. As to any Distribution
Date subsequent to January 2006, the Class A Percentage as of such  Distribution
Date.  The  foregoing  is  subject  to  the  following:  (i)  if  the  aggregate
distribution to Holders of Class A Certificates on any Distribution  Date of the
Class A  Prepayment  Percentage  provided  above  of (a)  Unscheduled  Principal
Receipts distributable on such Distribution Date would reduce the Class A Non-PO
Principal  Balance  below  zero,  the  Class A  Prepayment  Percentage  for such
Distribution Date shall be the percentage  necessary to bring the Class A Non-PO
Principal Balance to zero and thereafter the Class A Prepayment Percentage shall
be zero  and  (ii) if the  Class A  Percentage  as of any  Distribution  Date is
greater than the Original Class A Percentage,  the Class A Prepayment Percentage
for such Distribution Date shall be 100%.  Notwithstanding  the foregoing,  with
respect to any  Distribution  Date on which the following  criteria are not met,
the  reduction  of the Class A  Prepayment  Percentage  described  in the second
through  sixth  sentences of this  definition  of Class A Prepayment  Percentage
shall not be applicable with respect to such  Distribution  Date. In such event,
the Class A Prepayment  Percentage for such Distribution Date will be determined
in accordance with the applicable  provision,  as set forth in the first through
fifth  sentences  above,  which  was  actually  used to  determine  the  Class A
Prepayment  Percentage  for  the  Distribution  Date  occurring  in the  January
preceding such  Distribution  Date (it being understood that for the purposes of
the  determination  of  the  Class  A  Prepayment  Percentage  for  the  current
Distribution  Date, the current Class A Percentage and  Subordinated  Percentage
shall be utilized). In order for the reduction referred to in the second through
sixth sentences to be applicable,  with respect to any Distribution Date (a) the
average  outstanding  principal  balance on such  Distribution  Date and for the
preceding five Distribution  Dates on the Mortgage Loans that were delinquent 60
days or more  (including  for this  purpose  any  payments  due with  respect to
Mortgage Loans in foreclosure  and REO Mortgage  Loans) must be less than 50% of
the current Class M Principal  Balance and the current Class B Principal Balance
and (b)  cumulative  Realized  Losses  shall not exceed (1) 30% of the  Original
Subordinated  Principal  Balance if such  Distribution  Date occurs  between and
including  February 2002 and January 2003, (2) 35% of the Original  Subordinated
Principal  Balance  if such  Distribution  Date  occurs  between  and  including
February 2003 and January 2004, (3) 40% of the Original  Subordinated  Principal
Balance if such Distribution Date occurs between and including February 2004 and
January 2005,  (4) 45% of the Original  Subordinated  Principal  Balance if such
Distribution  Date occurs between and including  February 2005 and January 2006,
and (5) 50% of the Original Subordinated  Principal Balance if such Distribution
Date occurs during or after February 2006. With respect to any Distribution Date
on which  the  Class A  Prepayment  Percentage  is  reduced  below  the  Class A
Prepayment Percentage for the prior Distribution Date, the Master Servicer shall
certify to the Trust  Administrator,  based upon  information  provided  by each
Servicer as to the Mortgage  Loans serviced by it that the criteria set forth in
the  preceding  sentence  are  met.  All  of the  foregoing  is  subject  to the
following: if, on any Distribution Date following the Distribution Date on which
the Class A Subclass  Principal Balances of the Class A-1, Class A-2, Class A-3,
Class A-4, Class A-6, Class A-7, Class A-R and Class A-LR Certificates have been
reduced  to zero,  (i) the  Subordinated  Percentage  equals at least  twice the
Original  Subordinated  Percentage,  (ii) aggregate  Realized  Losses up to such
Distribution Date have not exceeded 30% of the Original  Subordinated  Principal
Balance and (iii) the average of the aggregate outstanding principal balances of
Outstanding  Mortgage  Loans  delinquent  60 days or more  (including  for  this
purpose any Mortgage Loans in foreclosure and any REO Mortgage Loans) on the Due
Dates in each of the six months up to and including the month prior to the month
of such  Distribution  Date does not exceed 2% of the average of the outstanding
principal balances of all Outstanding  Mortgage Loans as of such Due Dates, then
the Class A Prepayment  Percentage for such  Distribution  Date will equal, with
respect to  Distribution  Dates prior to February  2000,  the sum of (a) Class A
Percentage for such Distribution Date and (b) 50% of the Subordinated Percentage
for such  Distribution  Date and, with respect to  Distribution  Dates during or
after February 2000,  the Class A Percentage  with respect to such  Distribution
Date.

     Class A Principal  Balance:  As of any date,  an amount equal to the sum of
the Class A Subclass  Principal  Balances for the Class A-1 Certificates,  Class
A-2  Certificates,  Class A-3 Certificates,  Class A-4  Certificates,  Class A-6
Certificates,  Class  A-7  Certificates,  Class  A-8  Certificates,  Class  A-PO
Certificates, Class A-R Certificate and Class A-LR Certificate.

     Class A Subclass: Any of the Subclasses of Class A Certificates  consisting
of the Class A-1 Certificates,  Class A-2 Certificates,  Class A-3 Certificates,
Class A-4 Certificates, Class A-5 Certificate, Class A-6 Certificates, Class A-7
Certificates,  Class  A-8  Certificates,  Class  A-PO  Certificates,  Class  A-R
Certificate and Class A-LR Certificate.

     Class A Subclass  Distribution  Amount: As to any Distribution Date and any
Class  A  Subclass  (other  than  the  Class  A-7   Certificates),   the  amount
distributable to such Class A Subclass pursuant to Paragraphs first,  second and
third clause (A) of Section 4.01(a)(i). As to the Class A-7 Certificates, (a) as
to any  Distribution  Date prior to the Accretion  Termination  Date, the amount
distributable to the Class A-7  Certificates  pursuant to Paragraph third clause
(A) of Section  4.01(a)(i) and (b) as to any  Distribution  Date on or after the
Accretion   Termination  Date,  the  amount   distributable  to  the  Class  A-7
Certificates  pursuant  to  Paragraphs  first,  second  and third  clause (A) of
Section 4.01(a)(i).

     Class A Subclass  Interest Accrual Amount:  As to any Distribution Date and
any Class A Subclass (other than the Class A-5 and Class A-PO Certificates), (i)
the  product of (a) 1/12th of the Class A  Subclass  Pass-Through  Rate for such
Class A Subclass and (b) the Class A Subclass  Principal Balance of such Class A
Subclass as of the  Determination  Date preceding such  Distribution  Date minus
(ii) the Class A Subclass  Interest  Percentage  of such Class A Subclass of (x)
any Non-Supported  Interest Shortfall allocated to the Class A Certificates with
respect  to such  Distribution  Date,  (y) the  interest  portion  of any Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
allocated to the Class A  Certificates  with respect to such  Distribution  Date
pursuant to Section 4.02(e) and (z) the interest  portion of any Realized Losses
(other  than  Excess  Special  Hazard  Losses,  Excess  Fraud  Losses and Excess
Bankruptcy  Losses)  allocated  to the  Class A  Certificates  on or  after  the
Cross-Over Date pursuant to Section  4.02(e).  As to the Class A-5  Certificate,
the Class A-5 Interest Accrual Amount. The Class A-PO Certificates have no Class
A Subclass Interest Accrual Amount.

     Class A Subclass Interest  Percentage:  As to any Distribution Date and any
Class A  Subclass  (other  than the Class  A-PO  Certificates),  the  percentage
calculated  by dividing  the Class A Subclass  Interest  Accrual  Amount of such
Class A Subclass  (determined  without  regard to clause (ii) of the  definition
thereof) by the Class A Interest  Accrual Amount  (determined  without regard to
clause (ii) of the definition of each Class A Subclass Interest Accrual Amount).

     Class A Subclass Interest Shortfall Amount: As to any Distribution Date and
any Subclass of Class A  Certificates,  any amount by which the Class A Subclass
Interest  Accrual  Amount  of  such  Class  A  Subclass  with  respect  to  such
Distribution  Date  exceeds  the amount  distributed  in respect of such Class A
Subclass  on such  Distribution  Date  pursuant  to  Paragraph  first of Section
4.01(a)(i)  (including  in the case of the Class A-7  Certificates  prior to the
Accretion  Termination  Date,  the  amount  included  in the Class  A-7  Accrual
Distribution Amount pursuant to clause (i) of the definition thereof).

     Class A Subclass  Loss  Percentage:  As to any  Determination  Date and any
Subclass of Class A Certificates  (other than the Class A-5, Class A-7 and Class
A-PO Certificates) then outstanding,  the percentage  calculated by dividing the
Class  A  Subclass  Principal  Balance  of  such  Subclass  by the  Class A Loss
Denominator  (determined  without regard to any such Class A Subclass  Principal
Balance of any Class A Subclass not then  outstanding),  in each case determined
as of the preceding Determination Date. As to the Class A-7 Certificates and any
Determination Date, the Class A-7 Loss Percentage.

     Class A Subclass Pass-Through Rate: As to each Class A Subclass, other than
the Class A-1, Class A-2, Class A-3, Class A-4 and Class A-PO Certificates,  the
Class A Fixed  Pass-Through  Rate. As to the Class A-1,  Class A-2 and Class A-3
Certificates,  6.50 % per  annum.  As to the Class A-4  Certificates,  7.00% per
annum.  The Class A-PO  Certificates  are not  entitled to interest  and have no
Class A Subclass Pass-Through Rate.

     Class A Subclass Principal Balance:  As of the first Determination Date and
as to any Class A Subclass (other than the Class A-5 Certificate),  the Original
Class  A  Subclass  Principal  Balance  of  such  Class  A  Subclass.  As of any
subsequent Determination Date prior to the Cross-Over Date and as to any Class A
Subclass  (other than the Class A-5 and Class A-PO  Certificates),  the Original
Class A Subclass  Principal  Balance of such Class A Subclass  (increased in the
case of the Class A-7  Certificates by the Class A-7 Principal  Accretion Amount
with  respect  to prior  Distribution  Dates)  less  the sum of (a) all  amounts
previously distributed in respect of such Class A Subclass on prior Distribution
Dates (A) pursuant to Paragraph third clause (A) of Section  4.01(a)(i) (B) as a
result of a Principal Adjustment and (C) from the Class A-7 Accrual Distribution
Amounts for such prior  Distribution Dates and (b) the Realized Losses allocated
through  such  Determination  Date to such Class A Subclass  pursuant to Section
4.02(b). After the Cross-Over Date, each such Class A Subclass Principal Balance
will  also be  reduced  on each  Determination  Date by an  amount  equal to the
product of the Class A Subclass Loss Percentage of such Class A Subclass and the
excess,  if  any,  of (i)  the  Class  A  Non-PO  Principal  Balance  as of such
Determination  Date without  regard to this  sentence  over (ii) the  difference
between (A) the Adjusted Pool Amount for the preceding Distribution Date and (B)
the Adjusted Pool Amount (PO Portion) for the preceding  Distribution  Date. The
Class A-5 Certificate will have no Class A Subclass Principal Balance.

     As of any subsequent Determination Date prior to the Cross-Over Date and as
to the Class A-PO Certificates,  the Original Class A Subclass Principal Balance
of such Class A Subclass less the sum of (a) all amounts previously  distributed
in respect of the Class A-PO Certificates on prior  Distribution  Dates pursuant
to  Paragraphs  third  clause (B) and fourth of Section  4.01(a)(i)  and (b) the
Realized  Losses  allocated  through such  Determination  Date to the Class A-PO
Certificates pursuant to Section 4.02(b).  After the Cross-Over Date, such Class
A Subclass  Principal Balance will also be reduced on each Determination Date by
an  amount  equal to the  difference,  if any,  between  such  Class A  Subclass
Principal Balance as of such  Determination Date without regard to this sentence
and the Adjusted Pool Amount (PO Portion) for the preceding Distribution Date.

     Class A Subclass Unpaid Interest Shortfall: As to any Distribution Date and
Class A Subclass,  the amount,  if any,  by which the  aggregate  of the Class A
Subclass  Interest  Shortfall  Amounts  for  such  Class A  Subclass  for  prior
Distribution  Dates is in excess of the amounts  distributed  in respect of such
Class A Subclass  (or,  in the case of the Class A-7  Certificates  prior to the
Accretion  Termination  Date,  the  amount  included  in the Class  A-7  Accrual
Distribution  Amount pursuant to clause (ii) of the definition thereof) on prior
Distribution Dates pursuant to Paragraph second of Section 4.01(a)(i).

     Class A Unpaid Interest  Shortfall:  As to any Distribution Date, an amount
equal to the sum of the Class A Subclass Unpaid Interest  Shortfalls for all the
Class A Subclasses.

     Class  A  Voting  Interest:  The  sum of (A) the  product  of (i) the  then
applicable  Class A Percentage  and (ii) the Non-PO Voting  Interest and (B) the
Pool Balance (PO Portion)  divided by the Pool Balance (Non-PO  Portion) and the
Pool Balance (PO Portion).

     Class A-1 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-1 and Exhibit D hereto.

     Class  A-1  Certificateholder:   The  registered  holder  of  a  Class  A-1
Certificate.

     Class A-2 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-2 and Exhibit D hereto.

     Class  A-2  Certificateholder:   The  registered  holder  of  a  Class  A-2
Certificate.

     Class A-3 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-3 and Exhibit D hereto.

     Class  A-3  Certificateholder:   The  registered  holder  of  a  Class  A-3
Certificate.

     Class A-4 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-4 and Exhibit D hereto.

     Class  A-4  Certificateholder:   The  registered  holder  of  a  Class  A-4
Certificate.

     Class A-5 Certificate:  The Certificate executed by the Trust Administrator
and  authenticated  by the Trust  Administrator or the  Authenticating  Agent in
substantially the form set forth in Exhibit A-5 and Exhibit D hereto.

     Class  A-5  Certificateholder:  The  registered  holder  of the  Class  A-5
Certificate.

     Class A-5 Interest  Accrual Amount:  As to any  Distribution  Date, (i) the
product of (a) 1/12th of the Class A  Subclass  Pass-Through  Rate for the Class
A-5 Certificate  and (b) the Class A-5 Notional  Amount as of the  Determination
Date preceding such  Distribution  Date minus (ii) the Class A Subclass Interest
Percentage  of the  Class  A-5  Certificate  of (x) any  Non-Supported  Interest
Shortfall   allocated  to  the  Class  A  Certificates   with  respect  to  such
Distribution Date, (y) the interest portion of any Excess Special Hazard Losses,
Excess  Fraud  Losses  and Excess  Bankruptcy  Losses  allocated  to the Class A
Certificates with respect to such Distribution Date and (z) the interest portion
of any Realized  Losses (other than Excess Special  Hazard Losses,  Excess Fraud
Losses and Excess Bankruptcy Losses) allocated to the Class A Certificates on or
after the Cross-Over Date pursuant to Section 4.02(e).

     Class A-5 Notional Amount: As to any Distribution  Date, (a) the sum of (i)
0.75% of the Class A Subclass Principal Balances of the Class A-1, Class A-2 and
Class A-3 Certificates and (ii) 0.25% of the Class A Subclass  Principal Balance
of the Class A-4 Certificates divided by (b) 7.25%.

     Class A-6 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-6 and Exhibit D hereto.

     Class  A-6  Certificateholder:   The  registered  holder  of  a  Class  A-6
Certificate.

     Class A-7 Accrual Distribution Amount: As to any Distribution Date prior to
the  Accretion  Termination  Date, an amount equal to the sum of (i) the Class A
Subclass Interest  Percentage of the Class A-7 Certificates of the Current Class
A Interest  Distribution Amount and (ii) the Class A Subclass Interest Shortfall
Percentage of the Class A-7 Certificates of the amount distributed in respect of
the Class A Subclasses  pursuant to Paragraph  second of Section  4.01(a)(i)  on
such  Distribution  Date. As to any Distribution  Date on or after the Accretion
Termination Date, zero.

     Class A-7 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-7 and Exhibit D hereto.

     Class  A-7  Certificateholder:   The  registered  holder  of  a  Class  A-7
Certificate.

     Class A-7 Loss  Percentage:  As to any  Determination  Date, the percentage
calculated by dividing (i) the lesser of the Class A Subclass  Principal Balance
of the  Class A-7  Certificates  and the  Original  Class A  Subclass  Principal
Balance  of the Class  A-7  Certificates  by (ii) the  Class A Loss  Denominator
(determined  without regard to any Class A Subclass  Principal  Balance not then
outstanding) determined as of the preceding Determination Date.

     Class A-7 Principal  Accretion Amount: As to any Distribution Date prior to
the  Accretion  Termination  Date,  an  amount  equal to the sum of the  amounts
calculated  pursuant  to  clauses  (i) and (ii) of the  definition  of Class A-7
Accrual Distribution Amount with respect to such Distribution Date.

     Class A-8 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-8 and Exhibit D hereto.

     Class  A-8  Certificateholder:   The  registered  holder  of  a  Class  A-8
Certificate.

     Class A-8 Percentage:  The Class A Subclass  Principal Balance of the Class
A-8 Certificates divided by the Pool Balance (Non-PO Portion).

     Class A-8 Prepayment Shift  Percentage:  As to any  Distribution  Date, the
percentage indicated below:

Distribution Date Occurring In             Class A-8 Prepayment Shift Percentage
- ------------------------------             -------------------------------------

February 1997 through January 2002........                  0%
February 2001 through January 2003........                 30%
February 2003 through January 2004........                 40%
February 2004 through January 2005........                 60%
February 2005 through January 2006........                 80%
February 2006 through thereafter..........                100%

     Class A-8 Priority Amount: For any Distribution Date, the lesser of (i) the
Class A Subclass  Principal  Balance of the Class A-8  Certificates and (ii) the
sum of (A) the  product of (1) the Class A-8  Percentage  and (2) the  Scheduled
Principal  Amount and (B) the product of (1) the Class A-8  Percentage,  (2) the
Class A-8 Prepayment Shift Percentage, and (3) the Unscheduled Principal Amount.

     Class A-L1 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class A-L1 Interest Fraction: As of any Distribution Date, the fraction the
numerator  of which is an amount equal to the product of (i) 1/12th of 7.25% and
(ii)  0.75%  of  the  Class  A  Subclass  Principal  Balance  of the  Class  A-1
Certificates  divided  by 7.25%  and the  denominator  of  which is the  Class A
Subclass Interest Accrual Amount of the Class A-5 Certificates.

     Class A-L2 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held as an asset of the Upper-Tier REMIC and is entitled to monthly distribution
as provided in Section 4.01(a)(ii) hereof.

     Class A-L2 Interest Fraction: As of any Distribution Date, the fraction the
numerator  of which is an amount equal to the product of (i) 1/12th of 7.25% and
(ii)  0.75%  of  the  Class  A  Subclass  Principal  Balance  of the  Class  A-2
Certificates  divided  by 7.25%  and the  denominator  of  which is the  Class A
Subclass Interest Accrual Amount of the Class A-5 Certificates.

     Class A-L3 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class A-L3 Interest Fraction: As of any Distribution Date, the fraction the
numerator  of which is an amount equal to the product of (i) 1/12th of 7.25% and
(ii)  0.75%  of  the  Class  A  Subclass  Principal  Balance  of the  Class  A-3
Certificates  divided  by 7.25%  and the  denominator  of  which is the  Class A
Subclass Interest Accrual Amount of the Class A-5 Certificates.

     Class A-L4 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class A-L4 Interest Fraction: As of any Distribution Date, the fraction the
numerator  of which is an amount equal to the product of (i) 1/12th of 7.25% and
(ii)  0.25%  of  the  Class  A  Subclass  Principal  Balance  of the  Class  A-4
Certificates  divided  by 7.25%  and the  denominator  of  which is the  Class A
Subclass Interest Accrual Amount of the Class A-5 Certificates.

     Class A-L6 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class A-LPO Interest:  A regular  interest in the Lower-Tier REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class A-LR Certificate: The Certificate executed by the Trust Administrator
and  authenticated  by the Trust  Administrator or the  Authenticating  Agent in
substantially the form set forth in Exhibit A-LR and Exhibit D hereto.

     Class  A-LR  Certificateholder:  The  registered  holder of the Class  A-LR
Certificate.

     Class A-LUR Interest:  A regular  interest in the Lower-Tier REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class A-LPO Interest:  A regular  interest in the Lower-Tier REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class A-PO Certificate:  Any one of the Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-PO and Exhibit D hereto.

     Class  A-PO  Certificateholder:  The  registered  holder  of a  Class  A-PO
Certificate.

     Class  A-PO  Deferred  Amount:  For  any  Distribution  Date  prior  to the
Cross-Over  Date, the difference  between (A) the sum of (x) the amount by which
the sum of the Class A-PO Optimal Principal  Amounts for all prior  Distribution
Dates exceeded the amounts  distributed on the Class A-PO  Certificates  on such
prior  Distribution  Dates  pursuant to  Paragraph  third  clause (B) of Section
4.01(a)(i) and (y) the sum of the product for each Discount  Mortgage Loan which
became  a  Liquidated  Loan  at any  time on or  prior  to the  last  day of the
applicable  Unscheduled  Principal  Receipt Period for the current  Distribution
Date of (a) the PO Fraction for such  Discount  Mortgage  Loan and (b) an amount
equal to the principal  portion of Realized Losses (other than Bankruptcy Losses
due to Debt Service  Reductions)  incurred  with respect to such  Mortgage  Loan
other  than  Excess  Special  Hazard  Losses,  Excess  Fraud  Losses  and Excess
Bankruptcy Losses and (B) amounts  distributed on the Class A-PO Certificates on
prior Distribution Dates pursuant to Paragraph fourth of Section 4.01(a)(i).  On
and after the Cross-Over  Date, the Class A-PO Deferred  Amount will be zero. No
interest will accrue on any Class A-PO Deferred Amount.

     Class A-PO Distribution  Amount As to any Distribution  Date, the aggregate
amount distributable to the Class A-PO Certificates pursuant to Paragraphs third
clause (B) and fourth of Section 4.01(a)(i) on such Distribution Date.

     Class A-PO Optimal Principal Amount: As to any Distribution Date, an amount
equal to the sum as to each Outstanding Mortgage Loan, of the product of (x) the
PO Fraction with respect to such Mortgage Loan and (y) the sum of

                   (i) (A) the principal  portion of the Monthly  Payment due on
         the Due Date occurring in the month of such  Distribution  Date on such
         Mortgage Loan,  less (B) if the Bankruptcy Loss Amount has been reduced
         to zero,  the  principal  portion of any Debt  Service  Reduction  with
         respect to such Mortgage Loan;

                  (ii) all Unscheduled  Principal Receipts that were received by
         a Servicer  with respect to such  Mortgage  Loan during the  Applicable
         Unscheduled Principal Receipt Period relating to such Distribution Date
         for each applicable type of Unscheduled Principal Receipt;

                 (iii) the  Scheduled  Principal  Balance of each  Mortgage Loan
         that was repurchased by the Seller during such preceding month pursuant
         to Section 2.02 or 2.03;

                  (iv)  the  excess  of the  unpaid  principal  balance  of such
         Mortgage  Loan  substituted  for a defective  Mortgage  Loan during the
         month preceding the month in which such  Distribution  Date occurs over
         the unpaid principal balance of such defective  Mortgage Loan, less the
         amount allocable to the principal portion of any unreimbursed  Periodic
         Advances  previously  made by the Servicer,  the Master Servicer or the
         Trust Administrator in respect of such defective Mortgage Loan.

     Class A-R Certificate:  The Certificate executed by the Trust Administrator
and  authenticated  by the Trust  Administrator or the  Authenticating  Agent in
substantially the form set forth in Exhibit A-R and Exhibit D hereto.

     Class  A-R  Certificateholder:  The  registered  holder  of the  Class  A-R
Certificate.

     Class B  Certificate:  Any one of the  Class  B-1  Certificates,  Class B-2
Certificates,  Class  B-3  Certificates,  Class  B-4  Certificates  or Class B-5
Certificates.

     Class B Certificateholder: The registered holder of a Class B Certificate.

     Class B Interest Accrual Amount:  As to any  Distribution  Date, the sum of
the Class B Subclass  Interest Accrual Amounts with respect to such Distribution
Date.

     Class B Pass-Through Rate: As to any Distribution Date, 7.25% per annum.

     Class B Principal  Balance:  As of any date,  an amount equal to the sum of
the  Class  B-1  Principal  Balance,  Class  B-2  Principal  Balance,  Class B-3
Principal Balance, Class B-4 Principal Balance and Class B-5 Principal Balance.

     Class  B  Subclass:   Any  of  the  Class  B-1   Certificates,   Class  B-2
Certificates,  Class  B-3  Certificates,  Class  B-4  Certificates  or Class B-5
Certificates.

     Class B Subclass  Distribution  Amount:  Any of the Class  B-1,  Class B-2,
Class B-3, Class B-4 or Class B-5 Distribution Amounts.

     Class B Subclass  Interest Accrual Amount:  As to any Distribution Date and
any Class B Subclass,  an amount equal to (i) the product of 1/12th of the Class
B Pass-Through  Rate and the Class B Subclass  Principal Balance of such Class B
Subclass as of the  Determination  Date preceding such  Distribution  Date minus
(ii) the Class B Subclass  Interest  Percentage  of such Class B Subclass of (x)
any Non-Supported  Interest Shortfall allocated to the Class B Certificates with
respect to such  Distribution  Date and (y) the  interest  portion of any Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
allocated to the Class B  Certificates  with respect to such  Distribution  Date
pursuant to Section 4.02(e).

     Class B Subclass Interest  Percentage:  As to any Distribution Date and any
Class B Subclass,  the  percentage  calculated  by dividing the Class B Subclass
Interest Accrual Amount of such Class B Subclass  (determined  without regard to
clause (ii) of the  definition  thereof) by the Class B Interest  Accrual Amount
(determined  without  regard to clause  (ii) of the  definition  of each Class B
Subclass Interest Accrual Amount).

     Class B Subclass Interest  Shortfall Amount:  Any of the Class B-1 Interest
Shortfall  Amount,  Class B-2  Interest  Shortfall  Amount,  Class B-3  Interest
Shortfall  Amount,  Class B-4  Interest  Shortfall  Amount or Class B-5 Interest
Shortfall Amount.

     Class B Subclass  Loss  Percentage:  As to any  Determination  Date and any
Class B Subclass then  outstanding,  the  percentage  calculated by dividing the
Class B Subclass  Principal  Balance  of such  Class B  Subclass  by the Class B
Principal Balance  (determined  without regard to any Class B Subclass Principal
Balance of any Class B Subclass not then  outstanding),  in each case determined
as of the preceding Determination Date.

     Class B Subclass Percentage: Any one of the Class B-1 Percentage, Class B-2
Percentage, Class B-3 Percentage, Class B-4 Percentage or Class B-5 Percentage.

     Class B Subclass  Prepayment  Percentage:  Any of the Class B-1  Prepayment
Percentage,  Class B-2 Prepayment  Percentage,  Class B-3 Prepayment Percentage,
Class B-4 Prepayment Percentage or Class B-5 Prepayment Percentage.

     Class B Subclass Principal Balance: Any of the Class B-1 Principal Balance,
Class B-2 Principal Balance,  Class B-3 Principal  Balance,  Class B-4 Principal
Balance or Class B-5 Principal Balance.

     Class B Subclass  Unpaid  Interest  Shortfall:  Any of the Class B-1 Unpaid
Interest  Shortfall,  Class B-2  Unpaid  Interest  Shortfall,  Class B-3  Unpaid
Interest  Shortfall,  Class B-4 Unpaid  Interest  Shortfall  or Class B-5 Unpaid
Interest Shortfall.

     Class B-1 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-1 and Exhibit D hereto.

     Class  B-1  Certificateholder:   The  registered  holder  of  a  Class  B-1
Certificate.

     Class B-1  Distribution  Amount:  As to any  Distribution  Date, any amount
distributable  to  the  Holders  of  the  Class  B-1  Certificates  pursuant  to
Paragraphs eighth, ninth and tenth of Section 4.01(a)(i).

     Class B-1 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  Interest  Accrual  Amount of the Class B-1
Certificates   with  respect  to  such  Distribution  Date  exceeds  the  amount
distributed in respect of the Class B-1 Certificates on such  Distribution  Date
pursuant to Paragraph eighth of Section 4.01(a)(i).

     Class B-1 Optimal Principal Amount: As to any Distribution  Date, an amount
equal to the sum, as to each  Outstanding  Mortgage  Loan, of the product of (x)
the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

                   (i) the Class B-1 Percentage of (A) the principal  portion of
         the Monthly  Payment due on the Due Date occurring in the month of such
         Distribution  Date on such Mortgage  Loan,  less (B) if the  Bankruptcy
         Loss Amount has been reduced to zero, the principal portion of any Debt
         Service Reduction with respect to such Mortgage Loan;

                  (ii) the Class B-1  Prepayment  Percentage of all  Unscheduled
         Principal  Receipts  that were  received by a Servicer  with respect to
         such Mortgage Loan during the Applicable  Unscheduled Principal Receipt
         Period relating to such Distribution Date for each applicable type of
         Unscheduled Principal Receipt;

                 (iii) the  Class B-1  Prepayment  Percentage  of the  Scheduled
         Principal  Balance  of such  Mortgage  Loan  which,  during  the  month
         preceding the month of such  Distribution  Date, was repurchased by the
         Seller pursuant to Section 2.02 or 2.03; and

                  (iv) the  Class B-1  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         Servicer,  the Master Servicer or the Trust Administrator in respect of
         such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass and such Distribution Date, the Class B-1 Optimal Principal Amount
will equal the lesser of (A) the Class B-1 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-1 Certificates.

     Class B-1 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the Subordinated
Percentage by (ii) a fraction, the numerator of which is the Class B-1 Principal
Balance  (determined as of the  Determination  Date preceding such  Distribution
Date) and the  denominator of which is the sum of the Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  eligible
to receive principal distributions for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-1  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-1
Percentage for such Distribution Date will be zero.

     Class B-1 Prepayment Percentage: As to any Distribution Date, except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated Prepayment Percentage by (ii) a fraction, the numerator of which is
the  Class  B-1  Principal  Balance  (determined  as of the  Determination  Date
preceding such Distribution Date) and the denominator of which is the sum of the
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  eligible  to  receive  principal  distributions  for  such
Distribution  Date in accordance with the provisions of Section 4.01(d).  Except
as  set  forth  in  Section  4.01(d)(ii),  in  the  event  that  the  Class  B-1
Certificates  are  not  eligible  to  receive   distributions  of  principal  in
accordance with Section 4.01(d)(i), the Class B-1 Prepayment Percentage for such
Distribution Date will be zero.

     Class B-1  Principal  Balance:  As to the  first  Determination  Date,  the
Original Class B-1 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-1 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-1 Certificates on
prior  Distribution  Dates (A) pursuant to Paragraph tenth of Section 4.01(a)(i)
and (B) as a  result  of a  Principal  Adjustment  and (b) the  Realized  Losses
allocated through such Determination Date to the Class B-1 Certificates pursuant
to  Section  4.02(b)  and (ii) the  Adjusted  Pool  Amount  as of the  preceding
Distribution  Date less the sum of the Class A Principal Balance and the Class M
Principal Balance as of such Determination Date.

     Class B-1 Unpaid  Interest  Shortfall:  As to any  Distribution  Date,  the
amount,  if any,  by which the  aggregate  of the Class B-1  Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-1  Certificates on prior  Distribution  Dates pursuant to
Paragraph ninth of Section 4.01(a)(i).

     Class B-2 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-2 and Exhibit D hereto.

     Class  B-2  Certificateholder:   The  registered  holder  of  a  Class  B-2
Certificate.

     Class B-2  Distribution  Amount:  As to any  Distribution  Date, any amount
distributable  to  the  Holders  of  the  Class  B-2  Certificates  pursuant  to
Paragraphs eleventh, twelfth and thirteenth of Section 4.01(a)(i).

     Class B-2 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  Interest  Accrual  Amount of the Class B-2
Certificates   with  respect  to  such  Distribution  Date  exceeds  the  amount
distributed in respect of the Class B-2 Certificates on such  Distribution  Date
pursuant to Paragraph eleventh of Section 4.01(a)(i).

     Class B-2 Optimal Principal Amount: As to any Distribution  Date, an amount
equal to the sum, as to each  Outstanding  Mortgage  Loan, of the product of (x)
the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

                   (i) the Class B-2 Percentage of (A) the principal  portion of
         the Monthly  Payment due on the Due Date occurring in the month of such
         Distribution  Date on such Mortgage  Loan,  less (B) if the  Bankruptcy
         Loss Amount has been reduced to zero, the principal portion of any Debt
         Service Reduction with respect to such Mortgage Loan;

                  (ii) the Class B-2  Prepayment  Percentage of all  Unscheduled
         Principal  Receipts  that were  received by a Servicer  with respect to
         such Mortgage Loan during the Applicable  Unscheduled Principal Receipt
         Period relating to such Distribution Date for each applicable type of
         Unscheduled Principal Receipt;

                 (iii) the  Class B-2  Prepayment  Percentage  of the  Scheduled
         Principal  Balance  of such  Mortgage  Loan  which,  during  the  month
         preceding the month of such  Distribution  Date, was repurchased by the
         Seller pursuant to Section 2.02 or 2.03; and

                  (iv) the  Class B-2  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         Servicer,  the Master Servicer or the Trust Administrator in respect of
         such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass and such Distribution Date, the Class B-2 Optimal Principal Amount
will equal the lesser of (A) the Class B-2 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-2 Certificates.

     Class B-2 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the Subordinated
Percentage by (ii) a fraction, the numerator of which is the Class B-2 Principal
Balance  (determined as of the  Determination  Date preceding such  Distribution
Date) and the  denominator of which is the sum of the Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  eligible
to receive principal distributions for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-2  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-2
Percentage for such Distribution Date will be zero.

     Class B-2 Prepayment Percentage: As to any Distribution Date, except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated Prepayment Percentage by (ii) a fraction, the numerator of which is
the  Class  B-2  Principal  Balance  (determined  as of the  Determination  Date
preceding such Distribution Date) and the denominator of which is the sum of the
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  eligible  to  receive  principal  distributions  for  such
Distribution  Date in accordance with the provisions of Section 4.01(d).  Except
as  set  forth  in  Section  4.01(d)(ii),  in  the  event  that  the  Class  B-2
Certificates  are  not  eligible  to  receive   distributions  of  principal  in
accordance with Section 4.01(d)(i), the Class B-2 Prepayment Percentage for such
Distribution Date will be zero.

     Class B-2  Principal  Balance:  As to the  first  Determination  Date,  the
Original Class B-2 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-2 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-2 Certificates on
prior  Distribution  Dates (A)  pursuant  to  Paragraph  thirteenth  of  Section
4.01(a)(i)  and (B) as a result of a Principal  Adjustment  and (b) the Realized
Losses allocated through such  Determination  Date to the Class B-2 Certificates
pursuant  to  Section  4.02(b)  and  (ii) the  Adjusted  Pool  Amount  as of the
preceding  Distribution  Date less the sum of the Class A Principal  Balance the
Class M  Principal  Balance  and the  Class  B-1  Principal  Balance  as of such
Determination Date.

     Class B-2 Unpaid  Interest  Shortfall:  As to any  Distribution  Date,  the
amount,  if any,  by which the  aggregate  of the Class B-2  Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-2  Certificates on prior  Distribution  Dates pursuant to
Paragraph twelfth of Section 4.01(a)(i).

     Class B-3 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-3 and Exhibit D hereto.

     Class  B-3  Certificateholder:   The  registered  holder  of  a  Class  B-3
Certificate.

     Class B-3  Distribution  Amount:  As to any  Distribution  Date, any amount
distributable  to  the  Holders  of  the  Class  B-3  Certificates  pursuant  to
Paragraphs fourteenth, fifteenth and sixteenth of Section 4.01(a)(i).

     Class B-3 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  Interest  Accrual  Amount of the Class B-3
Certificates   with  respect  to  such  Distribution  Date  exceeds  the  amount
distributed in respect of the Class B-3 Certificates on such  Distribution  Date
pursuant to Paragraph fourteenth of Section 4.01(a)(i).

     Class B-3 Optimal Principal Amount: As to any Distribution  Date, an amount
equal to the sum, as to each  Outstanding  Mortgage  Loan, of the product of (x)
the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

                   (i) the Class B-3 Percentage of (A) the principal  portion of
         the Monthly  Payment due on the Due Date occurring in the month of such
         Distribution  Date on such Mortgage  Loan,  less (B) if the  Bankruptcy
         Loss Amount has been reduced to zero, the principal portion of any Debt
         Service Reduction with respect to such Mortgage Loan;

                  (ii) the Class B-3  Prepayment  Percentage of all  Unscheduled
         Principal  Receipts  that were  received by a Servicer  with respect to
         such Mortgage Loan during the Applicable  Unscheduled Principal Receipt
         Period relating to such Distribution Date for each applicable type of
         Unscheduled Principal Receipt;

                 (iii) the  Class B-3  Prepayment  Percentage  of the  Scheduled
         Principal  Balance  of such  Mortgage  Loan  which,  during  the  month
         preceding the month of such  Distribution  Date, was repurchased by the
         Seller pursuant to Section 2.02 or 2.03; and

                  (iv) the  Class B-3  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         Servicer,  the Master Servicer or the Trust Administrator in respect of
         such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass and such Distribution Date, the Class B-3 Optimal Principal Amount
will equal the lesser of (A) the Class B-3 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-3 Certificates.

     Class B-3 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the Subordinated
Percentage by (ii) a fraction, the numerator of which is the Class B-3 Principal
Balance  (determined as of the  Determination  Date preceding such  Distribution
Date) and the  denominator of which is the sum of the Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  eligible
to receive principal distributions for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-3  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-3
Percentage for such Distribution Date will be zero.

     Class B-3 Prepayment Percentage: As to any Distribution Date, except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated Prepayment Percentage by (ii) a fraction, the numerator of which is
the  Class  B-3  Principal  Balance  (determined  as of the  Determination  Date
preceding such Distribution Date) and the denominator of which is the sum of the
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  eligible  to  receive  principal  distributions  for  such
Distribution  Date in accordance with the provisions of Section 4.01(d).  Except
as  set  forth  in  Section  4.01(d)(ii),  in  the  event  that  the  Class  B-3
Certificates  are  not  eligible  to  receive   distributions  of  principal  in
accordance with Section 4.01(d)(i), the Class B-3 Prepayment Percentage for such
Distribution Date will be zero.

     Class B-3  Principal  Balance:  As to the  first  Determination  Date,  the
Original Class B-3 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-3 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-3 Certificates on
prior  Distribution  Dates  (A)  pursuant  to  Paragraph  sixteenth  of  Section
4.01(a)(i)  and (B) as a result of a Principal  Adjustment  and (b) the Realized
Losses through such  Determination  Date allocated to the Class B-3 Certificates
pursuant  to  Section  4.02(b)  and  (ii) the  Adjusted  Pool  Amount  as of the
preceding  Distribution Date less the sum of the Class A Principal Balance,  the
Class M Principal  Balance,  the Class B-1  Principal  Balance and the Class B-2
Principal Balance as of such Determination Date.

     Class B-3 Unpaid  Interest  Shortfall:  As to any  Distribution  Date,  the
amount,  if any,  by which the  aggregate  of the Class B-3  Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-3  Certificates on prior  Distribution  Dates pursuant to
Paragraph fifteenth of Section 4.01(a)(i).

     Class B-4 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-4 and Exhibit D hereto.

     Class  B-4  Certificateholder:   The  registered  holder  of  a  Class  B-4
Certificate.

     Class B-4  Distribution  Amount:  As to any  Distribution  Date, any amount
distributable  to  the  Holders  of  the  Class  B-4  Certificates  pursuant  to
Paragraphs seventeenth, eighteenth, and nineteenth of Section 4.01(a)(i).

     Class B-4 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  Interest  Accrual  Amount of the Class B-4
Certificates   with  respect  to  such  Distribution  Date  exceeds  the  amount
distributed in respect of the Class B-4 Certificates on such  Distribution  Date
pursuant to Paragraph seventeenth of Section 4.01(a)(i).

     Class B-4 Optimal Principal Amount: As to any Distribution  Date, an amount
equal to the sum, as to each  Outstanding  Mortgage  Loan, of the product of (x)
the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

                   (i) the Class B-4 Percentage of (A) the principal  portion of
         the Monthly  Payment due on the Due Date occurring in the month of such
         Distribution  Date on such Mortgage  Loan,  less (B) if the  Bankruptcy
         Loss Amount has been reduced to zero, the principal portion of any Debt
         Service Reduction with respect to such Mortgage Loan;

                  (ii) the Class B-4  Prepayment  Percentage of all  Unscheduled
         Principal  Receipts  that were  received by a Servicer  with respect to
         such Mortgage Loan during the Applicable  Unscheduled Principal Receipt
         Period relating to such Distribution Date for each applicable type of
         Unscheduled Principal Receipt;

                 (iii) the  Class B-4  Prepayment  Percentage  of the  Scheduled
         Principal  Balance  of such  Mortgage  Loan  which,  during  the  month
         preceding the month of such  Distribution  Date, was repurchased by the
         Seller pursuant to Section 2.02 or 2.03; and

                  (iv) the  Class B-4  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         Servicer,  the Master Servicer or the Trust Administrator in respect of
         such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass and such Distribution Date, the Class B-4 Optimal Principal Amount
will equal the lesser of (A) the Class B-4 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-4 Certificates.

     Class B-4 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the Subordinated
Percentage by (ii) a fraction, the numerator of which is the Class B-4 Principal
Balance  (determined as of the  Determination  Date preceding such  Distribution
Date) and the  denominator of which is the sum of the Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  eligible
to receive principal distributions for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-4  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-4
Percentage for such Distribution Date will be zero.

     Class B-4 Prepayment Percentage: As to any Distribution Date, except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated Prepayment Percentage by (ii) a fraction, the numerator of which is
the  Class  B-4  Principal  Balance  (determined  as of the  Determination  Date
preceding such Distribution Date) and the denominator of which is the sum of the
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  eligible  to  receive  principal  distributions  for  such
Distribution  Date in accordance with the provisions of Section 4.01(d).  Except
as  set  forth  in  Section  4.01(d)(ii),  in  the  event  that  the  Class  B-4
Certificates  are  not  eligible  to  receive   distributions  of  principal  in
accordance with Section 4.01(d)(i), the Class B-4 Prepayment Percentage for such
Distribution Date will be zero.

     Class B-4  Principal  Balance:  As to the  first  Determination  Date,  the
Original Class B-4 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-4 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-4 Certificates on
prior  Distribution  Dates (A)  pursuant  to  Paragraph  nineteenth  of  Section
4.01(a)(i)  and (B) as a result of a Principal  Adjustment  and (b) the Realized
Losses allocated through such  Determination  Date to the Class B-4 Certificates
pursuant  to  Section  4.02(b)  and  (ii) the  Adjusted  Pool  Amount  as of the
preceding  Distribution Date less the sum of the Class A Principal Balance,  the
Class M  Principal  Balance,  the Class  B-1  Principal  Balance,  the Class B-2
Principal Balance and the Class B-3 Principal  Balance as of such  Determination
Date.

     Class B-4 Unpaid  Interest  Shortfall:  As to any  Distribution  Date,  the
amount,  if any,  by which the  aggregate  of the Class B-4  Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-4  Certificates on prior  Distribution  Dates pursuant to
Paragraph eighteenth of Section 4.01(a)(i).

     Class B-5 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-5 and Exhibit D hereto.

     Class  B-5  Certificateholder:   The  registered  holder  of  a  Class  B-5
Certificate.

     Class B-5  Distribution  Amount:  As to any  Distribution  Date, any amount
distributable  to  the  Holders  of  the  Class  B-5  Certificates  pursuant  to
Paragraphs twentieth, twenty-first, and twenty-second of Section 4.01(a)(i).

     Class B-5 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  Interest  Accrual  Amount of the Class B-5
Certificates   with  respect  to  such  Distribution  Date  exceeds  the  amount
distributed in respect of the Class B-5 Certificates on such  Distribution  Date
pursuant to Paragraph twentieth of Section 4.01(a)(i).

     Class B-5 Optimal Principal Amount: As to any Distribution  Date, an amount
equal to the sum, as to each  Outstanding  Mortgage  Loan, of the product of (x)
the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

                   (i) the Class B-5 Percentage of (A) the principal  portion of
         the Monthly  Payment due on the Due Date occurring in the month of such
         Distribution  Date on such Mortgage  Loan,  less (B) if the  Bankruptcy
         Loss Amount has been reduced to zero, the principal portion of any Debt
         Service Reduction with respect to such Mortgage Loan;

                  (ii) the Class B-5  Prepayment  Percentage of all  Unscheduled
         Principal  Receipts  that were  received by a Servicer  with respect to
         such Mortgage Loan during the Applicable  Unscheduled Principal Receipt
         Period relating to such Distribution Date for each applicable type of
         Unscheduled Principal Receipt;

                 (iii) the  Class B-5  Prepayment  Percentage  of the  Scheduled
         Principal  Balance  of such  Mortgage  Loan  which,  during  the  month
         preceding the month of such  Distribution  Date, was repurchased by the
         Seller pursuant to Section 2.02 or 2.03; and

                  (iv) the  Class B-5  Percentage  of the  excess of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         Servicer,  the Master Servicer or the Trust Administrator in respect of
         such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass and such Distribution Date, the Class B-5 Optimal Principal Amount
will equal the lesser of (A) the Class B-5 Optimal  Principal Amount  calculated
as described in the preceding  provisions and (B) the Adjusted Principal Balance
for the Class B-5 Certificates.

     Class B-5 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the Subordinated
Percentage by (ii) a fraction, the numerator of which is the Class B-5 Principal
Balance  (determined as of the  Determination  Date preceding such  Distribution
Date) and the  denominator of which is the sum of the Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  eligible
to receive principal distributions for such Distribution Date in accordance with
the provisions of Section 4.01(d).  Except as set forth in Section  4.01(d)(ii),
in the  event  that the Class  B-5  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-5
Percentage for such Distribution Date will be zero.

     Class B-5 Prepayment Percentage: As to any Distribution Date, except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated Prepayment Percentage by (ii) a fraction, the numerator of which is
the  Class  B-5  Principal  Balance  (determined  as of the  Determination  Date
preceding such Distribution Date) and the denominator of which is the sum of the
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  eligible  to  receive  principal  distributions  for  such
Distribution  Date in accordance with the provisions of Section 4.01(d).  Except
as  set  forth  in  Section  4.01(d)(ii),  in  the  event  that  the  Class  B-5
Certificates  are  not  eligible  to  receive   distributions  of  principal  in
accordance with Section 4.01(d)(i), the Class B-5 Prepayment Percentage for such
Distribution Date will be zero.

     Class B-5  Principal  Balance:  As to the  first  Determination  Date,  the
Original Class B-5 Principal Balance.  As of any subsequent  Determination Date,
the lesser of (i) the Original  Class B-5 Principal  Balance less the sum of (a)
all amounts  previously  distributed in respect of the Class B-5 Certificates on
prior  Distribution  Dates  pursuant  to  Paragraph   twenty-second  of  Section
4.01(a)(i) and (b) the Realized Losses allocated through such Determination Date
to the Class B-5 Certificates  pursuant to Section 4.02(b) and (ii) the Adjusted
Pool Amount as of the  preceding  Distribution  Date less the sum of the Class A
Principal  Balance,  the Class M  Principal  Balance,  the  Class B-1  Principal
Balance,  the Class B-2 Principal  Balance,  the Class B-3 Principal Balance and
the Class B-4 Principal Balance as of such Determination Date.

     Class B-5 Unpaid  Interest  Shortfall:  As to any  Distribution  Date,  the
amount,  if any,  by which the  aggregate  of the Class B-5  Interest  Shortfall
Amounts for prior Distribution Dates is in excess of the amounts  distributed in
respect of the Class B-5  Certificates on prior  Distribution  Dates pursuant to
Paragraph twenty-first of Section 4.01(a)(i).

     Class B-L1 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class B-L2 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class B-L3 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class B-L4 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class B-L5 Interest:  A regular  interest in the Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

     Class M  Certificate:  Any one of the  Certificates  executed  by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit C and Exhibit D hereto.

     Class M Certificateholder: The registered holder of a Class M Certificate.

     Class M  Distribution  Amount:  As to any  Distribution  Date,  any  amount
distributable to the Holders of the Class M Certificates  pursuant to Paragraphs
fifth, sixth and seventh of Section 4.01(a)(i).

     Class M Interest  Accrual Amount:  As to any  Distribution  Date, an amount
equal to (i) the  product  of 1/12th of the  Class M  Pass-Through  Rate and the
Class  M  Principal  Balance  as  of  the  Determination   Date  preceding  such
Distribution Date minus (ii) (x) any Non-Supported  Interest Shortfall allocated
to the Class M Certificates  with respect to such  Distribution Date and (y) the
interest  portion of any Excess Special  Hazard Losses,  Excess Fraud Losses and
Excess  Bankruptcy  Losses allocated to the Class M Certificates with respect to
such Distribution Date pursuant to Section 4.02(e).

     Class M Interest  Shortfall Amount: As to any Distribution Date, any amount
by which the Class M Interest  Accrual Amount with respect to such  Distribution
Date exceeds the amount  distributed in respect of the Class M  Certificates  on
such Distribution Date pursuant to Paragraph fifth of Section 4.01(a)(i).

     Class M Optimal Principal  Amount:  As to any Distribution  Date, an amount
equal to the sum, as to each  Outstanding  Mortgage  Loan, of the product of (x)
the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

                   (i) the Class M Percentage  of (A) the  principal  portion of
         the Monthly  Payment due on the Due Date occurring in the month of such
         Distribution  Date on such Mortgage  Loan,  less (B) if the  Bankruptcy
         Loss Amount has been reduced to zero, the principal portion of any Debt
         Service Reduction with respect to such Mortgage Loan;

                  (ii) the  Class M  Prepayment  Percentage  of all  Unscheduled
         Principal  Receipts  that were  received by a Servicer  with respect to
         such Mortgage Loan during the Applicable  Unscheduled Principal Receipt
         Period relating to such Distribution Date for each applicable type of
         Unscheduled Principal Receipt;

                 (iii)  the  Class  M  Prepayment  Percentage  of the  Scheduled
         Principal  Balance  of such  Mortgage  Loan  which,  during  the  month
         preceding the month of such  Distribution  Date, was repurchased by the
         Seller pursuant to Section 2.02 or 2.03; and

                  (iv)  the  Class M  Percentage  of the  excess  of the  unpaid
         principal  balance of such  Mortgage Loan  substituted  for a defective
         Mortgage  Loan  during  the month  preceding  the  month in which  such
         Distribution  Date  occurs  over the unpaid  principal  balance of such
         defective  Mortgage  Loan,  less the amount  allocable to the principal
         portion of any unreimbursed  Periodic  Advances  previously made by the
         Servicer,  the Master Servicer or the Trust Administrator in respect of
         such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Class and such Distribution Date, the Class M Optimal Principal Amount will
equal  the  lesser of (A) the Class M Optimal  Principal  Amount  calculated  as
described in the preceding provisions and (B) the Adjusted Principal Balance for
the Class M Certificates.


     Class M Pass-Through Rate: As to any Distribution Date, 7.25% per annum.


     Class M Percentage:  As to any Distribution Date, the percentage calculated
by  multiplying  the  Subordinated  Percentage  by  either  (a) if any  Class  B
Certificates  are  eligible  to  receive   principal   distributions   for  such
Distribution  Date in  accordance  with the  provisions  of Section  4.01(d),  a
fraction, the numerator of which is the Class M Principal Balance (determined as
of the Determination  Date preceding such Distribution Date) and the denominator
of which is the sum of the Class M  Principal  Balance  and the Class B Subclass
Principal  Balances  of the Class B  Subclasses  eligible  to receive  principal
distributions  for such  Distribution  Date in accordance with the provisions of
Section 4.01(d) or (b) except as set forth in Section 4.01(d)(ii),  if the Class
B  Certificates  are not eligible to receive  principal  distributions  for such
Distribution Date in accordance with the provisions of Section 4.01(d)(i), one.

     Class M Prepayment Percentage:  As to any Distribution Date, the percentage
calculated by multiplying the Subordinated  Prepayment  Percentage by either (a)
if any Class B Certificates are eligible to receive principal  distributions for
such Distribution  Date in accordance with the provisions of Section 4.01(d),  a
fraction, the numerator of which is the Class M Principal Balance (determined as
of the Determination  Date preceding such Distribution Date) and the denominator
of which is the sum of the Class M  Principal  Balance  and the Class B Subclass
Principal  Balances  of the Class B  Subclasses  eligible  to receive  principal
distributions  for such  Distribution  Date in accordance with the provisions of
Section 4.01(d) or (b) except as set forth in Section 4.01(d)(ii),  if the Class
B  Certificates  are not eligible to receive  principal  distributions  for such
Distribution Date in accordance with the provisions of Section 4.01(d)(i), one.

     Class M Principal Balance: As to the first Determination Date, the Original
Class M Principal Balance.  As of any subsequent  Determination Date, the lesser
of (i) the  Original  Class M Principal  Balance less the sum of (a) all amounts
previously  distributed  in  respect  of  the  Class  M  Certificates  on  prior
Distribution  Dates (A) pursuant to Paragraph seventh of Section  4.01(a)(i) and
(B) as a result of a Principal  Adjustment and (b) the Realized Losses allocated
through such Determination Date to the Class M Certificates  pursuant to Section
4.02(b) and (ii) the Adjusted Pool Amount as of the preceding  Distribution Date
less the Class A Principal Balance as of such Determination Date.


     Class M Unpaid Interest Shortfall: As to any Distribution Date, the amount,
if any, by which the  aggregate  of the Class M Interest  Shortfall  Amounts for
prior Distribution  Dates is in excess of the amounts  distributed in respect of
the Class M Certificates on prior Distribution Dates pursuant to Paragraph sixth
of Section 4.01(a)(i).

     Class M-L Interest:  A regular  interest in the  Lower-Tier  REMIC which is
held  as  an  asset  of  the  Upper-Tier   REMIC  and  is  entitled  to  monthly
distributions as provided in Section 4.01(a)(ii) hereof.

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

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

     Closing  Date:  The date of initial  issuance of the  Certificates,  as set
forth in Section 11.23.

     Code: The Internal  Revenue Code of 1986, as it may be amended from time to
time, any successor  statutes  thereto,  and applicable  U.S.  Department of the
Treasury temporary or final regulations promulgated thereunder.

     Co-op Shares: Shares issued by private non-profit housing corporations.

     Compensating  Interest:  As to any Distribution Date, the lesser of (a) the
product of (i) 1/12th of 0.20% and (ii) the Pool Scheduled Principal Balance for
such Distribution  Date and (b) the Available Master Servicing  Compensation for
such Distribution Date.

     Corporate Trust Office: The principal office of the Trust  Administrator or
the Trustee,  as the case may be, at which at any particular  time its corporate
trust business shall be  administered,  which office,  with respect to the Trust
Administrator, at the date of the execution of this instrument is located at 230
South Tryon Street,  Charlotte,  North  Carolina  28288 and, with respect to the
Trustee,  at the date of the execution of this instrument is located at 615 East
Michigan Street, Lewis Center, 4th Floor, Milwaukee, Wisconsin 53202.

     Corresponding   Upper-Tier  Class:  As  to  the  following   Uncertificated
Lower-Tier Interests, the Corresponding Upper-Tier Class or Classes, as follows:

Uncertificated Lower-Tier           Corresponding Upper-Tier Class
Interest

Class A-L1 Interest                 Class A-1 Certificates

Class A-L2 Interest                 Class A-2 Certificates

Class A-L3 Interest                 Class A-3 Certificates

Class A-L4 Interest                 Class A-4 Certificates

Class A-L6 Interest                 Class A-6 Certificates, Class A-7
                                    Certificates and Class A-8 Certificates

Class A-LPO Interest                Class A-PO Certificates

Class A-LUR Interest                Class A-R Certificate

Class B-L1 Interest                 Class B-1 Certificates

Class B-L2 Interest                 Class B-2 Certificates

Class B-L3 Interest                 Class B-3 Certificates

Class B-L4 Interest                 Class B-4 Certificates

Class B-L5 Interest                 Class B-5 Certificates

Class M-L Interest                  Class M Certificates

     Cross-Over  Date: The  Distribution  Date preceding the first  Distribution
Date on which the Class A Percentage  (determined pursuant to clause (ii) of the
definition thereof) equals or exceeds 100%.

     Cross-Over Date Interest  Shortfall:  With respect to any Distribution Date
that  occurs on or after the  Cross-Over  Date with  respect to any  Unscheduled
Principal Receipt (other than a Prepayment in Full):

          (A)       in the  case  where  the  Applicable  Unscheduled  Principal
                    Receipt  Period is the  Mid-Month  Receipt  Period  and such
                    Unscheduled Principal Receipt is received by the Servicer on
                    or after the  Determination  Date in the month preceding the
                    month of such  Distribution  Date but prior to the first day
                    of the  month  of such  Distribution  Date,  the  amount  of
                    interest  that  would  have  accrued  at  the  Net  Mortgage
                    Interest  Rate on the amount of such  Unscheduled  Principal
                    Receipt  from the day of its  receipt  or, if  earlier,  its
                    application  by the  Servicer  through  the  last day of the
                    month preceding the month of such Distribution Date; and

          (B)       in the  case  where  the  Applicable  Unscheduled  Principal
                    Receipt  Period is the Prior Month  Receipt  Period and such
                    Unscheduled  Principal  Receipt is received by the  Servicer
                    during the month  preceding  the month of such  Distribution
                    Date,  the amount of interest that would have accrued at the
                    Net Mortgage Interest Rate on the amount of such Unscheduled
                    Principal  Receipt  from  the  day of  its  receipt  or,  if
                    earlier,  its  application by the Servicer  through the last
                    day of the month in which such Unscheduled Principal Receipt
                    is received.

     Current Class A Interest  Distribution Amount: As to any Distribution Date,
the  amount  distributed  in  respect  of the  Class A  Subclasses  pursuant  to
Paragraph first of Section 4.01(a)(i) on such Distribution Date.

     Current Class B Interest  Distribution Amount: As to any Distribution Date,
the  amount  distributed  in  respect of the Class B  Certificates  pursuant  to
Paragraphs eighth,  eleventh,  fourteenth,  seventeenth and twentieth of Section
4.01(a)(i) on such Distribution Date.

     Current  Class  B-1  Fractional  Interest:  As  to  any  Distribution  Date
subsequent to the first Distribution  Date, the percentage  obtained by dividing
the sum of the Class B Subclass  Principal Balances of the Class B-2, Class B-3,
Class B-4 and Class B-5  Certificates by the sum of the Class A Non-PO Principal
Balance,  the Class M Principal Balance and the Class B Principal Balance. As to
the first Distribution Date, the Original Class B-1 Fractional Interest.

     Current  Class  B-2  Fractional  Interest:  As  to  any  Distribution  Date
subsequent to the first Distribution  Date, the percentage  obtained by dividing
the sum of the Class B Subclass  Principal  Balances of the Class B-3, Class B-4
and Class B-5 Certificates by the sum of the Class A Non-PO  Principal  Balance,
the Class M Principal Balance and the Class B Principal Balance. As to the first
Distribution Date, the Original Class B-2 Fractional Interest.

     Current  Class  B-3  Fractional  Interest:  As  to  any  Distribution  Date
subsequent to the first Distribution  Date, the percentage  obtained by dividing
the sum of the Class B Subclass  Principal  Balances  of the Class B-4 and Class
B-5 Certificates by the sum of the Class A Non-PO Principal Balance, the Class M
Principal  Balance  and  the  Class  B  Principal  Balance.   As  to  the  first
Distribution Date, the Original Class B-3 Fractional Interest.

     Current  Class  B-4  Fractional  Interest:  As  to  any  Distribution  Date
subsequent to the first Distribution  Date, the percentage  obtained by dividing
the Class B Subclass  Principal Balance of the Class B-5 Certificates by the sum
of the Class A Non-PO Principal  Balance,  the Class M Principal Balance and the
Class B Principal Balance. As to the first Distribution Date, the Original Class
B-4 Fractional Interest.

     Current Class M Fractional Interest: As to any Distribution Date subsequent
to the first Distribution Date, the percentage  obtained by dividing the Class B
Principal Balance by the sum of the Class A Non-PO Principal Balance,  the Class
M  Principal  Balance  and  the  Class  B  Principal  Balance.  As to the  first
Distribution Date, the Original Class M Fractional Interest.

     Current Class M Interest  Distribution Amount: As to any Distribution Date,
the  amount  distributed  in  respect of the Class M  Certificates  pursuant  to
Paragraph fifth of Section 4.01(a)(i) on such Distribution Date.

     Curtailment:  Any Principal  Prepayment  made by a Mortgagor which is not a
Prepayment in Full.

     Custodial Agreement:  The Custodial Agreement, if any, from time to time in
effect between the Custodian named therein,  the Seller, the Master Servicer and
the Trust  Administrator,  substantially in the form of Exhibit E hereto, as the
same may be amended or modified from time to time in  accordance  with the terms
thereof.

     Custodial P&I Account: The Custodial P&I Account, as defined in each of the
Servicing Agreements, with respect to the Mortgage Loans. In determining whether
the Custodial P&I Account under any Servicing  Agreement is  "acceptable" to the
Master  Servicer (as may be required by the  definition  of  "Eligible  Account"
contained in the Servicing  Agreements),  the Master Servicer shall require that
any such account shall be acceptable to each of the Rating Agencies.

     Custodian:   Initially,   the  Trust  Administrator,   and  thereafter  the
Custodian,  if any, hereafter appointed by the Trust  Administrator  pursuant to
Section 8.13, or its successor in interest  under the Custodial  Agreement.  The
Custodian  may (but need not) be the  Trustee,  the Trust  Administrator  or any
Person  directly or  indirectly  controlling  or  controlled  by or under common
control  of either of them.  Neither a  Servicer,  nor the Seller nor the Master
Servicer nor any Person  directly or indirectly  controlling or controlled by or
under common control with any such Person may be appointed Custodian.

     Cut-Off  Date:  The  first  day of the  month of  initial  issuance  of the
Certificates as set forth in Section 11.02.

     Cut-Off Date Aggregate Principal Balance: The aggregate of the Cut-Off Date
Principal Balances of the Mortgage Loans is as set forth in Section 11.03.

     Cut-Off  Date  Principal  Balance:  As to each  Mortgage  Loan,  its unpaid
principal  balance as of the close of business on the Cut-Off  Date (but without
giving effect to any Unscheduled  Principal  Receipts received or applied on the
Cut-Off Date), reduced by all payments of principal due on or before the Cut-Off
Date and not paid, and increased by scheduled  monthly payments of principal due
after the Cut-Off  Date but  received  by the related  Servicer on or before the
Cut-Off Date.

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

     Deficient  Valuation:  With respect to any Mortgage  Loan, a valuation by a
court of competent jurisdiction of the Mortgaged Property in an amount less than
the  then-outstanding  indebtedness under the Mortgage Loan, or any reduction in
the amount of  principal to be paid in  connection  with any  scheduled  Monthly
Payment that results in a permanent forgiveness of principal, which valuation or
reduction results from a proceeding under the Bankruptcy Code.

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

     Denomination: The amount, if any, specified on the face of each Certificate
(other than the Class A-5 Certificate) representing the principal portion of the
Cut-Off Date Aggregate  Principal Balance  evidenced by such Certificate.  As to
the Class A-5 Certificate,  the amount specified on the face of such Certificate
representing  the portion of the Original Class A-5 Notional Amount evidenced by
such Certificate.

     Determination  Date:  The  17th  day of the  month  in  which  the  related
Distribution  Date  occurs,  or if such  17th  day is not a  Business  Day,  the
Business Day preceding such 17th day.

     Discount  Mortgage Loan: A Mortgage Loan with a Net Mortgage  Interest Rate
of less than 7.25%.

     Distribution  Date:  The  25th day of any  month,  beginning  in the  month
following the month of initial issuance of the Certificates, or if such 25th day
is not a Business Day, the Business Day following such 25th day.

     Due Date:  With respect to any Mortgage Loan, the day of the month in which
the Monthly Payment on such Mortgage Loan is scheduled to be paid.

     Eligible  Account:  One or more  accounts  (i) that are  maintained  with a
depository  institution  (which may be the Master Servicer) whose long-term debt
obligations  (or,  in the case of a  depository  institution  which is part of a
holding company structure, the long-term debt obligations of such parent holding
company)  at the  time of  deposit  therein  are  rated  at  least  "AA" (or the
equivalent) by each of the Rating Agencies, (ii) the deposits in which are fully
insured  by the FDIC  through  either  the Bank  Insurance  Fund or the  Savings
Association  Insurance Fund, (iii) the deposits in which are insured by the FDIC
through either the Bank Insurance Fund or the Savings Association Insurance Fund
(to the  limit  established  by the FDIC) and the  uninsured  deposits  in which
accounts are otherwise secured,  as evidenced by an Opinion of Counsel delivered
to the Trust Administrator,  such that the Trust Administrator, on behalf of the
Certificateholders  has a claim with respect to the funds in such  accounts or a
perfected  first security  interest  against any collateral  securing such funds
that  is  superior  to  claims  of any  other  depositors  or  creditors  of the
depository  institution  with which such accounts are maintained,  (iv) that are
trust  accounts  maintained  with the trust  department  of a  federal  or state
chartered  depository  institution  or trust  company  acting  in its  fiduciary
capacity  or (v) such other  account  that is  acceptable  to each of the Rating
Agencies and would not cause the Trust Estate to fail to qualify as two separate
REMICs  or  result  in the  imposition  of any  federal  tax  on  either  of the
Upper-Tier REMIC or the Lower-Tier REMIC.

     Eligible  Investments:  At any  time,  any  one or  more  of the  following
obligations  and  securities  which shall mature not later than the Business Day
preceding the  Distribution  Date next  succeeding the date of such  investment,
provided that such investments continue to qualify as "cash flow investments" as
defined in Code Section 860G(a)(6):

                    (i)  obligations  of the  United  States of  America  or any
          agency thereof, provided such obligations are backed by the full faith
          and credit of the United States of America;

                    (ii) general obligations of or obligations guaranteed by any
          state of the  United  States of America or the  District  of  Columbia
          receiving the highest  short-term or highest  long-term rating of each
          Rating  Agency,  or such  lower  rating  as would  not  result  in the
          downgrading  or  withdrawal  of the rating then assigned to any of the
          Certificates  by either  Rating  Agency or result in any of such rated
          Certificates  being  placed on credit  review  status  (other than for
          possible upgrading) by either Rating Agency;

                    (iii)  commercial  or finance  company  paper  which is then
          rated in the highest  long-term  commercial  or finance  company paper
          rating category of each Rating Agency or the highest short-term rating
          category of each Rating Agency, or such lower rating category as would
          not  result  in the  downgrading  or  withdrawal  of the  rating  then
          assigned to any of the  Certificates by either Rating Agency or result
          in any of such rated Certificates being placed on credit review status
          (other than for possible upgrading) by either Rating Agency;

                    (iv)  certificates  of  deposit,  demand  or time  deposits,
          federal  funds  or  banker's  acceptances  issued  by  any  depository
          institution or trust company incorporated under the laws of the United
          States  or of  any  state  thereof  and  subject  to  supervision  and
          examination by federal and/or state banking authorities, provided that
          the  commercial  paper  and/or  debt  obligations  of such  depository
          institution  or  trust  company  (or in  the  case  of  the  principal
          depository  institution in a holding  company  system,  the commercial
          paper or debt  obligations of such holding  company) are then rated in
          the highest  short-term or the highest  long-term  rating category for
          such securities of each of the Rating  Agencies,  or such lower rating
          categories as would not result in the downgrading or withdrawal of the
          rating  then  assigned  to any of the  Certificates  by either  Rating
          Agency or result in any of such  rated  Certificates  being  placed on
          credit  review  status  (other than for possible  upgrading) by either
          Rating Agency;

                    (v) guaranteed  reinvestment  agreements issued by any bank,
          insurance  company  or other  corporation  acceptable  to each  Rating
          Agency at the time of the issuance of such agreements;

                    (vi)  repurchase  agreements on obligations  with respect to
          any  security  described  in  clauses  (i) or (ii)  above or any other
          security issued or guaranteed by an agency or  instrumentality  of the
          United  States  of  America,  in  either  case  entered  into  with  a
          depository   institution  or  trust  company   (acting  as  principal)
          described in (iv) above;

                    (vii)  securities  (other  than  stripped  bonds or stripped
          coupon  securities)  bearing  interest or sold at a discount issued by
          any  corporation  incorporated  under the laws of the United States of
          America or any state thereof which,  at the time of such investment or
          contractual  commitment providing for such investment,  are then rated
          in the highest  short-term or the highest long-term rating category by
          each  Rating  Agency,  or in such lower  rating  category as would not
          result in the downgrading or withdrawal of the rating then assigned to
          any of the  Certificates  by either  Rating Agency or result in any of
          such rated  Certificates  being placed on credit  review status (other
          than for possible upgrading) by either Rating Agency; and

                    (viii)  such other  investments  acceptable  to each  Rating
          Agency  as would not  result in the  downgrading  of the  rating  then
          assigned to the  Certificates by either Rating Agency or result in any
          of such rated Certificates being placed on credit review status (other
          than for possible upgrading) by either Rating Agency.

     In  no  event  shall  an  instrument  be an  Eligible  Investment  if  such
instrument  evidences either (i) a right to receive only interest  payments with
respect to the obligations  underlying such  instrument,  or (ii) both principal
and interest  payments derived from  obligations  underlying such instrument and
the interest and principal  payments with respect to such  instrument  provide a
yield to maturity at the date of investment of greater than 120% of the yield to
maturity at par of such underlying obligations.

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

     ERISA Prohibited Holder:  As defined in Section 5.02(d).

     Errors  and  Omissions   Policy:  As  defined  in  each  of  the  Servicing
Agreements.

     Event of Default:  Any of the events specified in Section 7.01.

     Excess  Bankruptcy  Loss:  With  respect to any  Distribution  Date and any
Mortgage Loan as to which a Bankruptcy  Loss is realized in the month  preceding
the month of such  Distribution  Date, (i) if the Aggregate  Current  Bankruptcy
Losses  with  respect  to such  Distribution  Date  exceed  the  then-applicable
Bankruptcy Loss Amount,  then the portion of such Bankruptcy Loss represented by
the ratio of (a) the excess of the Aggregate Current  Bankruptcy Losses over the
then-applicable  Bankruptcy  Loss Amount,  divided by (b) the Aggregate  Current
Bankruptcy  Losses  or (ii) if the  Aggregate  Current  Bankruptcy  Losses  with
respect to such Distribution Date are less than or equal to the  then-applicable
Bankruptcy  Loss Amount,  then zero. In addition,  any Bankruptcy Loss occurring
with  respect  to a  Mortgage  Loan on or after the  Cross-Over  Date will be an
Excess Bankruptcy Loss.

     Excess Fraud Loss: With respect to any  Distribution  Date and any Mortgage
Loan as to which a Fraud Loss is  realized in the month  preceding  the month of
such  Distribution  Date, (i) if the Aggregate Current Fraud Losses with respect
to such Distribution Date exceed the then-applicable Fraud Loss Amount, then the
portion  of such Fraud  Loss  represented  by the ratio of (a) the excess of the
Aggregate  Current  Fraud  Losses over the  then-applicable  Fraud Loss  Amount,
divided by (b) the  Aggregate  Current  Fraud  Losses,  or (ii) if the Aggregate
Current  Fraud  Losses with respect to such  Distribution  Date are less than or
equal to the  then-applicable  Fraud Loss Amount,  then zero.  In addition,  any
Fraud Loss  occurring with respect to a Mortgage Loan on or after the Cross-Over
Date will be an Excess Fraud Loss.

     Excess Special Hazard Loss: With respect to any  Distribution  Date and any
Mortgage  Loan as to  which a  Special  Hazard  Loss is  realized  in the  month
preceding the month of such  Distribution  Date,  (i) if the  Aggregate  Current
Special  Hazard  Losses  with  respect  to such  Distribution  Date  exceed  the
then-applicable  Special  Hazard Loss  Amount,  then the portion of such Special
Hazard Loss represented by the ratio of (a) the excess of the Aggregate  Current
Special  Hazard  Losses over the  then-applicable  Special  Hazard Loss  Amount,
divided by (b) the  Aggregate  Current  Special  Hazard  Losses,  or (ii) if the
Aggregate  Current Special Hazard Losses with respect to such  Distribution Date
are less than or equal to the  then-applicable  Special Hazard Loss Amount, then
zero. In addition,  any Special Hazard Loss occurring with respect to a Mortgage
Loan on or after the Cross-Over Date will be an Excess Special Hazard Loss.

     Exhibit F-1 Mortgage Loan: Any of the Mortgage Loans  identified in Exhibit
F-1 hereto,  as such Exhibit may be amended from time to time in connection with
a substitution  pursuant to Section 2.02,  which Mortgage Loan is serviced under
the Norwest Servicing Agreement.

     Exhibit F-2 Mortgage Loan: Any of the Mortgage Loans  identified in Exhibit
F-2 hereto,  as such Exhibit may be amended from time to time in connection with
a substitution  pursuant to Section 2.02,  which Mortgage Loan is serviced under
the Norwest Servicing Agreement.

     Exhibit F-3 Mortgage Loan: Any of the Mortgage Loans  identified in Exhibit
F-3 hereto,  as such Exhibit may be amended from time to time in connection with
a substitution  pursuant to Section 2.02,  which Mortgage Loan is serviced under
an Other Servicing Agreement.

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

     FHLMC: The Federal Home Loan Mortgage Corporation or any successor thereto.

     Fidelity Bond:  As defined in each of the Servicing Agreements.

     Final   Distribution  Date:  The  Distribution  Date  on  which  the  final
distribution in respect of the Certificates is made pursuant to Section 9.01.

     Fitch:  Fitch Investors Service, L.P., or its successor in interest.

     Fixed  Retained  Yield:  The fixed  percentage of interest on each Mortgage
Loan with a Mortgage  Interest  Rate greater than the sum of (a) 7.25%,  (b) the
Servicing  Fee  Rate  and (c) the  Master  Servicing  Fee  Rate,  which  will be
determined on a loan by loan basis and will equal the Mortgage  Interest Rate on
each Mortgage  Loan minus the sum of (a), (b) and (c),  which is not assigned to
and not part of the Trust Estate.

     Fixed Retained Yield Rate:  With respect to each Mortgage Loan, a per annum
rate equal to the greater of (a) zero and (b) the Mortgage Interest Rate on such
Mortgage Loan minus the sum of (i) 7.25%,  (ii) the Servicing Fee Rate and (iii)
the Master Servicing Fee Rate.

     FNMA:  The Federal National Mortgage Association or any successor thereto.

     Foreclosure  Profits:  As to any Distribution  Date, the excess, if any, of
(i) Net  Liquidation  Proceeds  in respect of each  Mortgage  Loan that became a
Liquidated Loan during the Applicable  Unscheduled Principal Receipt Period with
respect to Full Unscheduled  Principal  Receipts for such Distribution Date over
(ii) the sum of the unpaid  principal  balance of each such Liquidated Loan plus
accrued and unpaid  interest at the  applicable  Mortgage  Interest  Rate on the
unpaid  principal  balance  thereof from the Due Date to which interest was last
paid by the Mortgagor (or, in the case of a Liquidated Loan that had been an REO
Mortgage Loan,  from the Due Date to which interest was last deemed to have been
paid) to the first day of the month in which such Distribution Date occurs.

     Fraud  Loss:  A  Liquidated  Loan  Loss as to which  there was fraud in the
origination of such Mortgage Loan.

     Fraud Loss Amount:  As of any  Distribution  Date after the Cut-Off Date an
amount  equal to:  (X) prior to the first  anniversary  of the  Cut-Off  Date an
amount  equal to  $3,700,589.25  minus  the  aggregate  amount  of Fraud  Losses
allocated  solely to the Class B Certificates in accordance with Section 4.02(a)
since the Cut-Off Date, and (Y) from the first through fifth  anniversary of the
Cut-Off  Date, an amount equal to (1) the lesser of (a) the Fraud Loss Amount as
of the  most  recent  anniversary  of the  Cut-Off  Date  and (b)  1.00%  of the
aggregate  outstanding  principal balance of all of the Mortgage Loans as of the
most recent anniversary of the Cut-Off Date minus (2) the Fraud Losses allocated
solely to the Class B Certificates  in accordance with Section 4.02(a) since the
most recent anniversary of the Cut-Off Date. On and after the Cross-Over Date or
after the fifth  anniversary  of the Cut-Off Date the Fraud Loss Amount shall be
zero.

     Full Unscheduled  Principal Receipt: Any Unscheduled Principal Receipt with
respect  to a  Mortgage  Loan (i) in the  amount  of the  outstanding  principal
balance of such  Mortgage Loan and  resulting in the full  satisfaction  of such
Mortgage  Loan or (ii)  representing  Liquidation  Proceeds  other than  Partial
Liquidation Proceeds.

     Holder:  See "Certificateholder."

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

     Insurance Policy:  Any insurance or performance bond relating to a Mortgage
Loan or the Mortgage  Loans,  including  any hazard  insurance,  special  hazard
insurance,  flood insurance,  primary mortgage insurance,  mortgagor  bankruptcy
bond or title insurance.

     Insurance Proceeds:  Proceeds paid by any insurer pursuant to any Insurance
Policy covering a Mortgage Loan.

     Insured  Expenses:  Expenses  covered by any  Insurance  Policy  covering a
Mortgage Loan.

     Liquidated  Loan:  A  Mortgage  Loan  with  respect  to which  the  related
Mortgaged Property has been acquired,  liquidated or foreclosed and with respect
to which the applicable Servicer determines that all Liquidation  Proceeds which
it expects to recover have been recovered.

     Liquidated Loan Loss: With respect to any Distribution  Date, the aggregate
of the amount of losses  with  respect  to each  Mortgage  Loan  which  became a
Liquidated Loan during the Applicable  Unscheduled Principal Receipt Period with
respect to Full Unscheduled Principal Receipts for such Distribution Date, equal
to the excess of (i) the unpaid principal  balance of each such Liquidated Loan,
plus accrued interest  thereon in accordance with the  amortization  schedule at
the time  applicable  thereto at the applicable Net Mortgage  Interest Rate from
the Due Date as to which interest was last paid with respect thereto through the
last day of the  month  preceding  the  month in which  such  Distribution  Date
occurs, over (ii) Net Liquidation Proceeds with respect to such Liquidated Loan.

     Liquidation  Expenses:  Expenses  incurred by a Servicer in connection with
the liquidation of any defaulted  Mortgage Loan or property  acquired in respect
thereof (including,  without limitation,  legal fees and expenses,  committee or
referee fees, and, if applicable,  brokerage  commissions and conveyance taxes),
any unreimbursed  advances  expended by such Servicer  pursuant to its Servicing
Agreement  or  the  Master  Servicer  or  Trust  Administrator  pursuant  hereto
respecting the related Mortgage Loan,  including any  unreimbursed  advances for
real property taxes or for property  restoration or  preservation of the related
Mortgaged  Property.  Liquidation  Expenses  shall not  include  any  previously
incurred  expenses  in respect of an REO  Mortgage  Loan which have been  netted
against related REO Proceeds.

     Liquidation  Proceeds:  Amounts received by a Servicer (including Insurance
Proceeds) in connection  with the  liquidation  of defaulted  Mortgage  Loans or
property  acquired in respect  thereof,  whether  through  foreclosure,  sale or
otherwise,  including  payments in connection  with such Mortgage Loans received
from the  Mortgagor,  other than  amounts  required to be paid to the  Mortgagor
pursuant  to the terms of the  applicable  Mortgage  or to be applied  otherwise
pursuant to law.

     Loan-to-Value Ratio: The ratio, expressed as a percentage, the numerator of
which is the principal balance of a particular  Mortgage Loan at origination and
the denominator of which is the lesser of (x) the appraised value of the related
Mortgaged  Property  determined in the appraisal  used by the  originator at the
time of origination of such Mortgage Loan, and (y) if the Mortgage is originated
in  connection  with a sale of the Mortgaged  Property,  the sale price for such
Mortgaged Property.

     Lower-Tier Distribution Amount:  As defined in Section 4.01(a)(ii).

     Lower-Tier  REMIC: One of two separate REMICs  comprising the Trust Estate,
the assets of which consist of the Mortgage Loans, other than any Fixed Retained
Yield,  such  amounts  as  shall  from  time to time be held in the  Certificate
Account (other than any Fixed Retained Yield), the insurance  policies,  if any,
relating to a Mortgage Loan and property which secured a Mortgage Loan and which
has been acquired by foreclosure or deed in lieu of foreclosure.

     Master  Servicer:  Norwest Bank  Minnesota,  National  Association,  or its
successor in interest.

     Master   Servicing   Fee:  With  respect  to  any  Mortgage  Loan  and  any
Distribution  Date, the fee payable monthly to the Master  Servicer  pursuant to
Section 6.05 equal to a fixed percentage  (expressed as a per annum rate) of the
unpaid principal balance of such Mortgage Loan.

     Master Servicing Fee Rate:  As set forth in Section 11.28.

     Mid-Month Receipt Period:  With respect to each Distribution  Date, the one
month period beginning on the Determination Date occurring in the calendar month
preceding the month in which such Distribution Date occurs and ending on the day
preceding the Determination Date immediately preceding such Distribution Date.

     Monthly Payment:  As to any Mortgage Loan (including any REO Mortgage Loan)
and any Due  Date,  the  payment  of  principal  and  interest  due  thereon  in
accordance with the amortization  schedule at the time applicable thereto (after
adjustment for any Curtailments and Deficient Valuations occurring prior to such
Due Date but before any adjustment to such amortization schedule, other than for
Deficient  Valuations,  by reason of any bankruptcy or similar proceeding or any
moratorium or similar waiver or grace period).

     Month End Interest:  As defined in each Servicing Agreement.

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

     Mortgage: The mortgage,  deed of trust or other instrument creating a first
lien on Mortgaged  Property  securing a Mortgage Note together with any Mortgage
Loan Rider, if applicable.

     Mortgage  Interest  Rate:  As to any Mortgage  Loan,  the per annum rate at
which interest accrues on the unpaid  principal  balance thereof as set forth in
the related  Mortgage  Note,  which rate is as indicated  on the  Mortgage  Loan
Schedule.

     Mortgage Loan Rider:  The standard  FNMA/FHLMC  riders to the Mortgage Note
and/or  Mortgage  riders  required when the Mortgaged  Property is a condominium
unit or a unit in a planned unit development.

     Mortgage Loan Schedule:  The list of the Mortgage Loans  transferred to the
Trust Administrator on the Closing Date as part of the Trust Estate and attached
hereto as Exhibits  F-1, F-2 and F-3,  which list may be amended  following  the
Closing Date upon  conveyance of a Substitute  Mortgage Loan pursuant to Section
2.02 or 2.03  and  which  list  shall  set  forth  at a  minimum  the  following
information  of the close of business on the Cut-Off  Date (or,  with respect to
Substitute  Mortgage  Loans,  as  of  the  close  of  business  on  the  day  of
substitution) as to each Mortgage Loan:

                    (i)       the Mortgage Loan identifying number;

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

                    (iii)     the type of property;

                    (iv)      the Mortgage Interest Rate;

                    (v)       the Net Mortgage Interest Rate;

                    (vi)      the Monthly Payment;

                    (vii)     the original number of months to maturity;

                    (viii)    the scheduled maturity date;

                    (ix)      the Cut-Off Date Principal Balance;

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

                    (xi)      whether such Mortgage Loan is a Subsidy Loan;

                    (xii)     whether such  Mortgage  Loan is covered by primary
                              mortgage insurance;

                    (xiii)    the Servicing Fee Rate;

                    (xiv)     whether such  Mortgage  Loan is a T.O.P.  Mortgage
                              Loan;

                    (xv)      Fixed Retained Yield, if applicable;

                    (xvi)     the Master Servicing Fee; and

                    (xvii)    for Mortgage Loans  identified on Exhibit F-3, the
                              name of the Servicer with respect thereto.

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

     Mortgage Loans:  Each of the mortgage loans transferred and assigned to the
Trust  Administrator  on the  Closing  Date  pursuant  to  Section  2.01 and any
mortgage loans  substituted  therefor  pursuant to Section 2.02 or 2.03, in each
case as from time to time are included in the Trust Estate as  identified in the
Mortgage Loan Schedule.

     Mortgage Note: The note or other  evidence of  indebtedness  evidencing the
indebtedness  of a Mortgagor  under a Mortgage  Loan  together  with any related
Mortgage Loan Riders, if applicable.

     Mortgaged Property:  The property subject to a Mortgage,  which may include
Co-op Shares.

     Mortgagor:  The obligor on a Mortgage Note.

     Net Foreclosure  Profits:  As to any Distribution Date, the amount, if any,
by which (i)  Aggregate  Foreclosure  Profits with respect to such  Distribution
Date exceed (ii) Liquidated Loan Losses with respect to such Distribution Date.

     Net Liquidation Proceeds:  As to any Liquidated Loan,  Liquidation Proceeds
net of Liquidation Expenses. For all purposes of this Agreement, Net Liquidation
Proceeds shall be allocated  first to accrued and unpaid interest on the related
Mortgage Loan and then to the unpaid principal balance thereof.

     Net Mortgage  Interest  Rate:  With respect to each  Mortgage  Loan, a rate
equal to (i) the Mortgage Interest Rate on such Mortgage Loan minus (ii) the sum
of (a) the  Servicing  Fee Rate,  as set forth in Section  11.27 with respect to
such Mortgage Loan,  (b) the Master  Servicing Fee Rate, as set forth in Section
11.28 with respect to such Mortgage Loan and (c) the Fixed  Retained Yield Rate,
if any, with respect to such Mortgage Loan. Any regular  monthly  computation of
interest  at such rate shall be based upon  annual  interest at such rate on the
applicable amount divided by twelve.

     Net Partial Liquidation Proceeds: Partial Liquidation Proceeds with respect
to a  Mortgage  Loan net of  unreimbursed  Liquidation  Expenses  incurred  with
respect to such Mortgage Loan. For all purposes of this  Agreement,  Net Partial
Liquidation  Proceeds shall be allocated first to accrued and unpaid interest on
the related Mortgage Loan and then to the unpaid principal balance thereof.

     Net REO  Proceeds:  As to any REO  Mortgage  Loan,  REO Proceeds net of any
related expenses of the Servicer.

     Non-permitted Foreign Holder:  As defined in Section 5.02(d).

     Non-PO Fraction:  With respect to any Mortgage Loan, the quotient  obtained
by dividing the Net Mortgage Interest Rate for such Mortgage Loan by 7.25%.

     Non-PO  Voting  Interest:  The ratio  obtained by dividing the Pool Balance
(Non-PO  Portion) by the sum of the Pool Balance  (Non-PO  Portion) and the Pool
Balance (PO Portion).

     Nonrecoverable  Advance:  Any portion of a Periodic Advance previously made
or  proposed  to be made in  respect  of a  Mortgage  Loan  which  has not  been
previously  reimbursed  to the  Servicer,  the  Master  Servicer  or  the  Trust
Administrator, as the case may be, and which the Servicer or the Master Servicer
or the Trust  Administrator  determines  will not,  or in the case of a proposed
Periodic Advance would not, be ultimately  recoverable from Liquidation Proceeds
or other recoveries in respect of the related  Mortgage Loan. The  determination
by the Servicer,  the Master Servicer or the Trust Administrator (i) that it has
made a Nonrecoverable  Advance or (ii) that any proposed  Periodic  Advance,  if
made,  would  constitute  a  Nonrecoverable  Advance,  shall be  evidenced by an
Officer's  Certificate  of the  Servicer  delivered  to the Master  Servicer for
redelivery to the Trust  Administrator  or, in the case of a Master  Servicer or
Trust  Administrator  determination,  an  Officer's  Certificate  of the  Master
Servicer  or the Trust  Administrator  delivered  to the  Trustee,  in each case
detailing the reasons for such determination.

     Non-Supported  Interest  Shortfall:  With respect to any Distribution Date,
the excess,  if any,  of the  aggregate  Prepayment  Interest  Shortfall  on the
Mortgage  Loans over the  aggregate  Compensating  Interest with respect to such
Distribution  Date. With respect to each Distribution Date occurring on or after
the Cross-Over Date, the Non-Supported Interest Shortfall determined pursuant to
the preceding  sentence will be increased by the amount of any  Cross-Over  Date
Interest  Shortfall  for such  Distribution  Date.  Any  Non-Supported  Interest
Shortfall  will be  allocated to (a) the Class A  Certificates  according to the
percentage  obtained by dividing the Class A Non-PO Principal Balance by the sum
of the Class A Non-PO Principal  Balance,  the Class M Principal Balance and the
Class B  Principal  Balance,  (b)  the  Class M  Certificates  according  to the
percentage  obtained by dividing the Class M Principal Balance by the sum of the
Class A Non-PO Principal Balance,  the Class M Principal Balance and the Class B
Principal  Balance and (c) the Class B Certificates  according to the percentage
obtained  by dividing  the Class B  Principal  Balance by the sum of the Class A
Non-PO  Principal  Balance,  the  Class M  Principal  Balance  and  the  Class B
Principal Balance.

     Non-U.S. Person:  As defined in Section 4.01(g).

     Norwest Mortgage:  Norwest Mortgage, Inc., or its successor in interest.

     Norwest Mortgage  Correspondents:  The entities, other than PHMC, listed on
the Mortgage Loan Schedule,  from which Norwest Mortgage  purchased the Mortgage
Loans.

     Norwest  Servicing  Agreement:  The Servicing  Agreement  providing for the
servicing of the Exhibit F-1 and Exhibit F-2 Mortgage Loans initially by Norwest
Mortgage.

     Officers' Certificate:  With respect to any Person, a certificate signed by
the  Chairman  of the  Board,  the  President  or a Vice  President,  and by the
Treasurer,  the  Secretary  or one  of the  Assistant  Treasurers  or  Assistant
Secretaries  of  such  Person  (or,  in the  case  of a  Person  which  is not a
corporation, signed by the person or persons having like responsibilities),  and
delivered to the Trustee or Trust Administrator, as the case may be.

     Opinion of Counsel:  A written  opinion of  counsel,  who may be outside or
salaried  counsel for the  Seller,  a Servicer  or the Master  Servicer,  or any
affiliate of the Seller,  a Servicer or the Master  Servicer,  acceptable to the
Trustee if such opinion is to be delivered to the Trustee,  or acceptable to the
Trust   Administrator   if  such  opinion  is  to  be  delivered  to  the  Trust
Administrator;  provided,  however, that with respect to REMIC matters,  matters
relating  to the  determination  of  Eligible  Accounts  or matters  relating to
transfers of Certificates, such counsel shall be Independent.

     Optimal  Adjustment  Event: With respect to the Class M Certificates or any
Class B Subclass and any  Distribution  Date, an Optimal  Adjustment  Event will
occur with  respect to such Class or Subclass if: (i) the  principal  balance of
such Class or Subclass on the  Determination  Date succeeding such  Distribution
Date  would have been  reduced to zero  (regardless  of whether  such  principal
balance  was  reduced  to zero as a  result  of  principal  distribution  or the
allocation  of  Realized  Losses)  and (ii) (a) any Class A  Subclass  Principal
Balance would be subject to further  reduction as a result of the third or fifth
sentences of the  definition of Class A Subclass  Principal  Balance or (b) with
respect to any Class B Subclass,  the Class M  Principal  Balance or the Class B
Subclass  Principal  Balance  of a  Class  B  Subclass  with a  lower  numerical
designation  would be reduced with respect to such Distribution Date as a result
of the  application  of  clause  (ii) of the  definition  of  Class M  Principal
Balance,  Class B-1 Principal Balance,  Class B-2 Principal  Balance,  Class B-3
Principal Balance, Class B-4 Principal Balance or Class B-5 Principal Balance.

     Original Class A Percentage: The Class A Percentage as of the Cut-Off Date,
as set forth in Section 11.04.

     Original Class A Non-PO Principal Balance:  The sum of the Original Class A
Subclass  Principal  Balances of the Class A-1, Class A-2, Class A-3, Class A-4,
Class A-6, Class A-7, Class A-8, Class A-R and Class A-LR  Certificates,  as set
forth in Section 11.05.

     Original Class A Subclass  Principal  Balance:  Any of the Original Class A
Subclass Principal Balances as set forth in Section 11.05.

     Original Class A-5 Notional Amount: The Original Class A-5 Notional Amount,
as set forth in Section 11.07.

     Original  Class B  Principal  Balance:  The sum of the  Original  Class B-1
Principal  Balance,  Original  Class B-2 Principal  Balance,  Original Class B-3
Principal  Balance,  Original Class B-4 Principal Balance and Original Class B-5
Principal Balance, as set forth in Section 11.18.

     Original Class B-1 Fractional Interest:  As to the first Distribution Date,
the percentage  obtained by dividing the sum of the Original Class B-2 Principal
Balance,  the Original  Class B-3  Principal  Balance,  the  Original  Class B-4
Principal Balance and the Original Class B-5 Principal Balance by the sum of the
Original  Class A Non-PO  Principal  Balance,  the  Original  Class M  Principal
Balance and the  Original  Class B Principal  Balance.  The  Original  Class B-1
Fractional Interest is specified in Section 11.19.

     Original Class B-2 Fractional Interest:  As to the first Distribution Date,
the percentage  obtained by dividing the sum of the Original Class B-3 Principal
Balance,  the Original  Class B-4 Principal  Balance and the Original  Class B-5
Principal  Balance by the sum of the Original Class A Non-PO Principal  Balance,
the  Original  Class M  Principal  Balance  and the  Original  Class B Principal
Balance.  The  Original  Class B-2  Fractional  Interest is specified in Section
11.20.

     Original Class B-3 Fractional Interest:  As to the first Distribution Date,
the percentage  obtained by dividing the sum of the Original Class B-4 Principal
Balance and the Original Class B-5 Principal  Balance by the sum of the Original
Class A Non-PO Principal Balance, the Original Class M Principal Balance and the
Original Class B Principal Balance.  The Original Class B-3 Fractional  Interest
is specified in Section 11.21.

     Original Class B-4 Fractional Interest:  As to the first Distribution Date,
the percentage  obtained by dividing the Original Class B-5 Principal Balance by
the sum of the Original Class A Non-PO Principal  Balance,  the Original Class M
Principal Balance and the Original Class B Principal Balance. The Original Class
B-4 Fractional Interest is specified in Section 11.22.

     Original Class B-1  Percentage:  The Class B-1 Percentage as of the Cut-Off
Date, as set forth in Section 11.12.

     Original Class B-2  Percentage:  The Class B-2 Percentage as of the Cut-Off
Date, as set forth in Section 11.13.

     Original Class B-3  Percentage:  The Class B-3 Percentage as of the Cut-Off
Date, as set forth in Section 11.14.

     Original Class B-4  Percentage:  The Class B-4 Percentage as of the Cut-Off
Date, as set forth in Section 11.15.

     Original Class B-5  Percentage:  The Class B-5 Percentage as of the Cut-Off
Date, as set forth in Section 11.16.

     Original Class B-1 Principal Balance: The Class B-1 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class B-2 Principal Balance: The Class B-2 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class B-3 Principal Balance: The Class B-3 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class B-4 Principal Balance: The Class B-4 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class B-5 Principal Balance: The Class B-5 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class M Fractional  Interest:  As to the first  Distribution Date,
the percentage  obtained by dividing the Original  Class B Principal  Balance by
the sum of the Original Class A Non-PO Principal  Balance,  the Original Class M
Principal Balance and the Original Class B Principal Balance. The Original Class
M Fractional Interest is specified in Section 11.11.

     Original Class M Percentage: The Class M Percentage as of the Cut-Off Date,
as set forth in Section 11.09.

     Original Class M Principal Balance: The Class M Principal Balance as of the
Cut-Off Date, as set forth in Section 11.10.

     Original  Subordinated  Percentage:  The Subordinated  Percentage as of the
Cut-Off Date, as set forth in Section 11.08.

     Original  Subordinated  Principal Balance:  The sum of the Original Class M
Principal Balance and the Original Class B Principal Balance.

     Other Servicer:  Any of the Servicers other than Norwest Mortgage.

     Other Servicing Agreements: The Servicing Agreements other than the Norwest
Servicing Agreement.

     Outstanding  Mortgage Loan: As to any Due Date, a Mortgage Loan  (including
an REO Mortgage Loan) which was not the subject of a Full Unscheduled  Principal
Receipt prior to such Due Date and which was not repurchased by the Seller prior
to such Due Date pursuant to Section 2.02 or 2.03.

     Owner Mortgage Loan File: A file maintained by the Trust  Administrator (or
the  Custodian,  if any) for each  Mortgage  Loan that  contains  the  documents
specified in the Servicing  Agreements  under their  respective  "Owner Mortgage
Loan File" definition or similar  definition  and/or other provisions  requiring
delivery of specified  documents to the owner of the Mortgage Loan in connection
with the purchase thereof,  and any additional documents required to be added to
the Owner Mortgage Loan File pursuant to this Agreement.

     PAC   Certificates:   Any  of  the  Class  A-1   Certificates,   Class  A-2
Certificates, Class A-3 Certificates or Class A-4 Certificates.

     PAC Principal Amount:  As defined in Section 4.01(b).

     Partial Liquidation  Proceeds:  Liquidation Proceeds received by a Servicer
prior to the month in which the related Mortgage Loan became a Liquidated Loan.

     Partial  Unscheduled  Principal Receipt:  An Unscheduled  Principal Receipt
which is not a Full Unscheduled Principal Receipt.

     Paying Agent: The Person  authorized on behalf of the Trust  Administrator,
as agent for the Master Servicer,  to make  distributions to  Certificateholders
with  respect  to the  Certificates  and to forward  to  Certificateholders  the
periodic and annual statements required by Section 4.04. The Paying Agent may be
any Person  directly or indirectly  controlling or controlled by or under common
control  with  the  Master  Servicer  and  may  be  the  Trustee  or  the  Trust
Administrator. The initial Paying Agent is appointed in Section 4.03(a).

     Payment Account:  The account maintained pursuant to Section 4.03(b).

     Percentage Interest:  With respect to a Class A Certificate (other than the
Class A-5 Certificate),  the undivided  percentage interest obtained by dividing
the original  principal  balance of such  Certificate by the aggregate  original
principal balance of all Certificates of such Class A Subclass.  With respect to
the Class A-5 Certificate, the percentage interest specified on the face of such
Certificate,  which percentage interest shall be 100%. With respect to a Class M
Certificate, the undivided percentage interest obtained by dividing the original
principal  balance  of such  Certificate  by the  aggregate  original  principal
balance  of  all  Certificates  of  such  Class.  With  respect  to  a  Class  B
Certificate, the undivided percentage interest obtained by dividing the original
principal  balance  of such  Certificate  by the  aggregate  original  principal
balance of all Certificates of such Class B Subclass.

     Periodic  Advance:  The aggregate of the advances  required to be made by a
Servicer on any Distribution Date pursuant to its Servicing  Agreement or by the
Master  Servicer or the Trust  Administrator  hereunder,  the amount of any such
advances  being equal to the total of all Monthly  Payments  (adjusted,  in each
case (i) in respect of interest,  to the applicable  Mortgage Interest Rate less
the applicable Servicing Fee in the case of Periodic Advances made by a Servicer
and to the  applicable  Net  Mortgage  Interest  Rate in the  case  of  Periodic
Advances  made by the Master  Servicer  or Trust  Administrator  and (ii) by the
amount of any related Debt Service  Reductions  or  reductions  in the amount of
interest  collectable from the Mortgagor  pursuant to the Soldiers' and Sailors'
Civil Relief Act of 1940, as amended, or similar legislation or regulations then
in effect) on the Mortgage  Loans,  that (x) were  delinquent as of the close of
business  on the  related  Determination  Date,  (y) were not the  subject  of a
previous  Periodic  Advance by such  Servicer  or of a  Periodic  Advance by the
Master Servicer or the Trust Administrator,  as the case may be and (z) have not
been determined by the Master Servicer,  such Servicer or Trust Administrator to
be Nonrecoverable Advances.

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

     PHMC:  The Prudential Home Mortgage Company, Inc.

     Plan:  As defined in Section 5.02(c).

     PO Fraction:  With respect to any Discount  Mortgage  Loan,  the difference
between 1.0 and the Non-PO  Fraction for such Mortgage Loan; with respect to any
other Mortgage Loan, zero.

     Pool Balance (Non-PO Portion):  As of any Distribution Date, the sum of the
amounts  for each  Mortgage  Loan that is an  Outstanding  Mortgage  Loan of the
product of (i) the Non-PO Fraction for such Mortgage Loan and (ii) the Scheduled
Principal Balance of such Mortgage Loan.

     Pool Balance (PO  Portion):  As of any  Distribution  Date,  the sum of the
amounts  for each  Mortgage  Loan that is an  Outstanding  Mortgage  Loan of the
product of (i) the PO Fraction  for such  Mortgage  Loan and (ii) the  Scheduled
Principal Balance of such Mortgage Loan.

     Pool Distribution  Amount: As of any Distribution  Date, the funds eligible
for distribution to the Holders of the Certificates on such  Distribution  Date,
which  shall be the sum of (i) all  previously  undistributed  payments or other
receipts on account of  principal  and interest on or in respect of the Mortgage
Loans  (including,  without  limitation,  the  proceeds of any  repurchase  of a
Mortgage Loan by the Seller and any Substitution  Principal  Amount) received by
the Master Servicer with respect to the applicable  Remittance Date in the month
of such Distribution Date and any Unscheduled Principal Receipts received by the
Master  Servicer on or prior to the Business  Day  preceding  such  Distribution
Date,  (ii) all  Periodic  Advances  made by a Servicer  pursuant to the related
Servicing  Agreement  or Periodic  Advances  made by the Master  Servicer or the
Trust  Administrator  pursuant  to  Section  3.03 and (iii)  all  other  amounts
required to be placed in the  Certificate  Account by the  Servicer on or before
the  applicable  Remittance  Date  or  by  the  Master  Servicer  or  the  Trust
Administrator on or prior to the Distribution Date, but excluding the following:

                    (a)  amounts  received  as late  payments  of  principal  or
          interest  and  respecting  which  the  Master  Servicer  or the  Trust
          Administrator has made one or more unreimbursed Periodic Advances;

                    (b)  the  portion  of  Net  Liquidation   Proceeds  used  to
          reimburse any unreimbursed Periodic Advances by the Master Servicer or
          the Trust Administrator;

                    (c)  those  portions  of  each  payment  of  interest  on  a
          particular Mortgage Loan which represent (i) the Fixed Retained Yield,
          if any,  (ii)  the  applicable  Servicing  Fee and  (iii)  the  Master
          Servicing Fee;

                    (d) all amounts representing scheduled payments of principal
          and  interest  due after the Due Date  occurring in the month in which
          such Distribution Date occurs;

                    (e)  all  Unscheduled  Principal  Receipts  received  by the
          Servicers after the Applicable  Unscheduled  Principal  Receipt Period
          relating  to  the  Distribution   Date  for  the  applicable  type  of
          Unscheduled Principal Receipt, and all related payments of interest on
          such amounts;

                    (f) all  repurchase  proceeds with respect to Mortgage Loans
          repurchased  by the  Seller  pursuant  to  Section  2.02 or 2.03 on or
          following  the Due Date in the month in which such  Distribution  Date
          occurs and the difference between the unpaid principal balance of such
          Mortgage  Loan  substituted  for a defective  Mortgage Loan during the
          month preceding the month in which such  Distribution  Date occurs and
          the unpaid principal balance of such defective Mortgage Loan;

                    (g) that  portion of  Liquidation  Proceeds and REO Proceeds
          which  represents any unpaid  Servicing Fee or Master Servicing Fee or
          any unpaid Fixed Retained Yield;

                    (h) all income from Eligible Investments that is held in the
          Certificate Account for the account of the Master Servicer;

                    (i) all other  amounts  permitted to be  withdrawn  from the
          Certificate  Account in respect of the Mortgage  Loans,  to the extent
          not covered by clauses (a)  through (h) above,  or not  required to be
          deposited in the Certificate Account under this Agreement;

                    (j) Net Foreclosure Profits;

                    (k) Month End Interest; and

                    (l) the amount of any  recoveries  in  respect of  principal
          which  had  previously  been  allocated  as a  loss  to  one  or  more
          Subclasses  of  Class  A or  Class  B  Certificates  or  the  Class  M
          Certificates pursuant to Section 4.02.

     Pool  Scheduled  Principal  Balance:  As  to  any  Distribution  Date,  the
aggregate   Scheduled  Principal  Balances  of  all  Mortgage  Loans  that  were
Outstanding  Mortgage Loans on the Due Date in the month  preceding the month of
such Distribution Date.

     Premium Mortgage Loan: A Mortgage Loan with a Net Mortgage Interest Rate of
7.25% or greater.

     Prepayment In Full: With respect to any Mortgage Loan, a Mortgagor  payment
consisting of a Principal Prepayment in the amount of the outstanding  principal
balance of such loan and resulting in the full satisfaction of such obligation.

     Prepayment  Interest  Shortfall:  On any  Distribution  Date, the amount of
interest,  if any,  that would have accrued on any  Mortgage  Loan which was the
subject  of a  Prepayment  in Full at the Net  Mortgage  Interest  Rate for such
Mortgage  Loan  from the date of its  Prepayment  in Full  (but in the case of a
Prepayment in Full where the Applicable  Unscheduled Principal Receipt Period is
the Mid-Month  Receipt Period,  only if the date of the Prepayment in Full is on
or  after  the  Determination  Date in the  month  prior  to the  month  of such
Distribution  Date and prior to the first day of the month of such  Distribution
Date) through the last day of the month prior to the month of such  Distribution
Date.

     Principal  Adjustment:  In the event  that the  Class M  Optimal  Principal
Amount,  Class B-1 Optimal Principal Amount, Class B-2 Optimal Principal Amount,
Class B-3 Optimal Principal Amount,  Class B-4 Optimal Principal Amount or Class
B-5 Optimal  Principal  Amount is calculated  in accordance  with the proviso in
such definition with respect to any Distribution Date, the Principal  Adjustment
for the Class M Certificates or such Class B Subclass shall equal the difference
between  (i) the  amount  that  would  have been  distributed  to such  Class or
Subclass as principal in accordance with Section  4.01(a) for such  Distribution
Date,  calculated  without  regard to such  proviso  and  assuming  there are no
Principal Adjustments for such Distribution Date and (ii) the Adjusted Principal
Balance for such Class or Subclass.

     Principal  Balance:  Each of the Class A Subclass Principal  Balances,  the
Class M  Principal  Balance,  the Class  B-1  Principal  Balance,  the Class B-2
Principal  Balance,  the Class B-3  Principal  Balance,  the Class B-4 Principal
Balance and the Class B-5 Principal Balance.

     Principal  Prepayment:  Any  Mortgagor  payment on a Mortgage Loan which is
received  in  advance  of its  Due  Date  and is not  accompanied  by an  amount
representing  scheduled  interest  for  any  period  subsequent  to the  date of
prepayment.

     Prior Month Receipt  Period:  With respect to each  Distribution  Date, the
calendar month preceding the month in which such Distribution Date occurs.

     Prohibited Transaction Tax: Any tax imposed under Section 860F of the Code.

     Prudent  Servicing  Practices:  The  standard  of care  set  forth  in each
Servicing Agreement.

     Rating Agency: Any nationally recognized  statistical credit rating agency,
or its  successor,  that rated one or more  Classes of the  Certificates  at the
request of the Seller at the time of the initial  issuance of the  Certificates.
The Rating  Agencies for the Class A Certificates  and Class M Certificates  are
Fitch and Moody's. The Rating Agency for the Class B-1, Class B-2, Class B-3 and
Class B-4  Certificates is Fitch. If any such agency or a successor is no longer
in existence, "Rating Agency" shall be such statistical credit rating agency, or
other comparable Person,  designated by the Seller,  notice of which designation
shall be given to the Trustee,  the Trust Administrator and the Master Servicer.
References  herein to the highest  short-term rating category of a Rating Agency
shall mean F-1+ in the case of Fitch, P-1 in the case of Moody's and in the case
of any other Rating Agency shall mean its equivalent of such ratings. References
herein to the highest  long-term rating categories of a Rating Agency shall mean
AAA in the case of  Fitch,  Aaa in the case of  Moody's,  and in the case of any
other Rating Agency shall mean its equivalent of such rating without any plus or
minus.

     Realized Losses: With respect to any Distribution Date, (i) Liquidated Loan
Losses  (including  Special Hazard Losses and Fraud Losses) and (ii)  Bankruptcy
Losses incurred in the month preceding the month of such Distribution Date.

     Record Date: The last Business Day of the month  preceding the month of the
related Distribution Date.

     Relevant Anniversary:  See "Bankruptcy Loss Amount."

     REMIC:  A "real  estate  mortgage  investment  conduit"  as defined in Code
Section 860D.

     REMIC  Provisions:  Provisions  of the federal  income tax law  relating to
REMICs, which appear at Sections 860A through 860G of Part IV of Subchapter M of
Chapter 1 of Subtitle A of the Code, and related provisions, and U.S. Department
of the Treasury temporary, proposed or final regulations promulgated thereunder,
as the foregoing are in effect (or,  with respect to proposed  regulations,  are
proposed to be in effect) from time to time.

     Remittance Date:  As defined in each of the Servicing Agreements.

     REO Mortgage Loan: Any Mortgage Loan which is not a Liquidated  Loan and as
to which the  indebtedness  evidenced by the related Mortgage Note is discharged
and the related Mortgaged Property is held as part of the Trust Estate.

     REO  Proceeds:  Proceeds  received  in  respect  of any REO  Mortgage  Loan
(including,  without  limitation,  proceeds  from  the  rental  of  the  related
Mortgaged Property).

     Request  for  Release:  A request  for  release in  substantially  the form
attached as Exhibit G hereto.

     Responsible  Officer:  When used with  respect to the  Trustee or the Trust
Administrator,  the  Chairman  or  Vice-Chairman  of the Board of  Directors  or
Trustees,  the Chairman or Vice-Chairman of the Executive or Standing  Committee
of the Board of  Directors  or  Trustees,  the  President,  the  Chairman of the
Committee on Trust Matters,  any Vice  President,  the Secretary,  any Assistant
Secretary,  the Treasurer,  any Assistant Treasurer,  the Cashier, any Assistant
Cashier,  any Trust Officer or Assistant  Trust Officer,  the Controller and any
Assistant  Controller  or  any  other  officer  of  the  Trustee  or  the  Trust
Administrator,  as the case may be, customarily  performing functions similar to
those performed by any of the  above-designated  officers and also, with respect
to a  particular  matter,  any other  officer  to whom such  matter is  referred
because of such  officer's  knowledge  of and  familiarity  with the  particular
subject.

     Rule 144A:  Rule 144A  promulgated  under the  Securities  Act of 1933,  as
amended.

     Scheduled  Principal  Amount:  The sum for each  outstanding  Mortgage Loan
(including  each defaulted  Mortgage Loan,  other than a Liquidated  Loan,  with
respect to which the related  Mortgaged  Property has been acquired by the Trust
Estate) of the product of (A) the Non-PO Fraction for such Mortgage Loan and (B)
the sum of the amounts  described in clauses y(i) and y(iv) of the definition of
Class  A  Non-PO  Optimal  Principal  Amount,  but  without  that  amount  being
multiplied by the Class A Percentage.

     Scheduled Principal Balance: As to any Mortgage Loan and Distribution Date,
the  principal  balance  of such  Mortgage  Loan as of the Due Date in the month
preceding the month of such  Distribution  Date as specified in the amortization
schedule  at  the  time  relating   thereto   (before  any  adjustment  to  such
amortization  schedule  by  reason  of  any  bankruptcy  (other  than  Deficient
Valuations)  or similar  proceeding or any moratorium or similar waiver or grace
period) after giving effect to (A) Unscheduled  Principal  Receipts  received or
applied by the related Servicer during the related Unscheduled Principal Receipt
Period for each applicable type of Unscheduled  Principal Receipt related to the
Distribution Date occurring in the month preceding such  Distribution  Date, (B)
Deficient  Valuations  incurred  prior to such Due Date and (C) the  payment  of
principal due on such Due Date and irrespective of any delinquency in payment by
the  related  Mortgagor.  Accordingly,  the  Scheduled  Principal  Balance  of a
Mortgage Loan which  becomes a Liquidated  Loan at any time through the last day
of such related Unscheduled Principal Receipt Period shall be zero.

     Seller: Norwest Asset Securities Corporation, or its successor in interest.

     Senior  Optimal  Amount:  As to any  Distribution  Date,  the sum for  such
Distribution  Date of (a) the Class A Non-PO  Optimal  Amount  and (b) the Class
A-PO Optimal Principal Amount.

     Servicer   Mortgage  Loan  File:  As  defined  in  each  of  the  Servicing
Agreements.

     Servicers:  Each of Citicorp Mortgage,  Inc., Countrywide Home Loans, Inc.,
First Bank National  Association,  First Union  Mortgage  Corporation,  HomeSide
Lending,  National City  Mortgage  Company,  Norwest  Mortgage Inc. and SunTrust
Mortgage Inc. as Servicer under the related Servicing Agreement.

     Servicing  Agreements:  Each  of the  Servicing  Agreements  executed  with
respect  to a  portion  of the  Mortgage  Loans by one of the  Servicers,  which
agreements are attached hereto, collectively, as Exhibit L.

     Servicing  Fee: With respect to any  Servicer,  as defined in its Servicing
Agreement.

     Servicing  Fee Rate:  With  respect  to a  Mortgage  Loan,  as set forth in
Section 11.27.

     Servicing  Officer:  Any officer of a Servicer  involved in, or responsible
for, the administration and servicing of the Mortgage Loans.

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

     Single  Certificate:  A Certificate of any Class or Subclass that evidences
the smallest permissible  Denomination for such Class or Subclass,  as set forth
in Section 11.26.

     Special  Hazard Loss:  (i) A Liquidated  Loan Loss  suffered by a Mortgaged
Property on account of direct  physical loss,  exclusive of (a) any loss covered
by a hazard  policy or a flood  insurance  policy  maintained in respect of such
Mortgaged Property pursuant to a Servicing  Agreement and (b) any loss caused by
or resulting from:

                    (1)       normal wear and tear;

                    (2)       infidelity,  conversion or other  dishonest act on
                              the part of the Trustee,  the Trust  Administrator
                              or  the   Servicer  or  any  of  their  agents  or
                              employees; or

                    (3)       errors in  design,  faulty  workmanship  or faulty
                              materials,  unless the collapse of the property or
                              a part thereof ensues;

or (ii) any  Liquidated  Loan Loss suffered by the Trust Estate  arising from or
related to the presence or suspected  presence of hazardous  wastes or hazardous
substances on a Mortgaged  Property unless such loss to a Mortgaged  Property is
covered by a hazard policy or a flood insurance policy  maintained in respect of
such Mortgaged Property pursuant to a Servicing Agreement.

     Special Hazard Loss Amount: As of any Distribution Date, an amount equal to
$2,000,000.00 minus the sum of (i) the aggregate amount of Special Hazard Losses
allocated  solely to the Class B Certificates in accordance with Section 4.02(a)
and (ii) the  Special  Hazard  Adjustment  Amount  (as  defined  below)  as most
recently  calculated.  For each  anniversary  of the Cut-Off  Date,  the Special
Hazard  Adjustment  Amount shall be calculated and shall be equal to the amount,
if any, by which the amount calculated in accordance with the preceding sentence
(without giving effect to the deduction of the Special Hazard  Adjustment Amount
for such  anniversary)  exceeds  the  greater of (A) the  product of the Special
Hazard Percentage for such anniversary  multiplied by the outstanding  principal
balance of all the Mortgage Loans on the Distribution Date immediately preceding
such  anniversary,  (B) twice the outstanding  principal balance of the Mortgage
Loan in the Trust Estate which has the largest outstanding  principal balance on
the Distribution Date immediately  preceding such anniversary and (C) that which
is necessary to maintain the original ratings on the Certificates,  as evidenced
by letters to that effect  delivered by Rating  Agencies to the Master  Servicer
and the Trust  Administrator.  On and or after the Cross-Over  Date, the Special
Hazard Loss Amount shall be zero.

     Special Hazard Percentage:  As of each anniversary of the Cut-Off Date, the
greater of (i) 1.00% and (ii) the largest  percentage  obtained by dividing  the
aggregate  outstanding  principal  balance  (as  of  the  immediately  preceding
Distribution Date) of the Mortgage Loans secured by Mortgaged Properties located
in a  single,  five-digit  zip  code  area in the  State  of  California  by the
outstanding  principal  balance of all the Mortgage Loans as of the  immediately
preceding Distribution Date.

     Startup Day:  As defined in Section 2.05.

     Subclass:  Each  subdivision  of  the  Class  A  Certificates,  denominated
respectively  as Class A-1,  Class A-2,  Class A-3,  Class A-4, Class A-5, Class
A-6,  Class  A-7,  Class  A-8,  Class  A-PO,  Class A-R and Class  A-LR and each
subdivision of the Class B Certificates,  denominated respectively as Class B-1,
Class B-2, Class B-3, Class B-4 and Class B-5.

     Subordinated Percentage:  As to any Distribution Date, the percentage which
is the difference between 100% and the Class A Percentage for such date.

     Subordinated  Prepayment  Percentage:  As to  any  Distribution  Date,  the
percentage  which is the  difference  between  100% and the  Class A  Prepayment
Percentage for such date.

     Subsidy  Loan:  Any Mortgage Loan subject to a temporary  interest  subsidy
agreement  pursuant to which the monthly  interest  payments made by the related
Mortgagor  will be less than the  scheduled  monthly  interest  payments on such
Mortgage Loan, with the resulting difference in interest payments being provided
by the employer of the  Mortgagor.  Each Subsidy Loan will be identified as such
in the Mortgage Loan Schedule.

     Substitute Mortgage Loan:  As defined in Section 2.02

     Substitution   Principal   Amount:   With  respect  to  any  Mortgage  Loan
substituted  in accordance  with Section 2.02 or pursuant to Section  2.03,  the
excess  of (x) the  unpaid  principal  balance  of the  Mortgage  Loan  which is
substituted for over (y) the unpaid principal balance of the Substitute Mortgage
Loan, each balance being determined as of the date of substitution.

     T.O.P.  Mortgage  Loan:  Any Mortgage  Loan that was  originated by Norwest
Mortgage or an  affiliate  thereof in  connection  with the "Title  Option Plus"
program  and which is not  covered  by a title  insurance  policy.  Each  T.O.P.
Mortgage Loan shall be identified as such in the Mortgage Loan Schedule.

     Trust  Administrator:  First  Union  National  Bank of  North  Carolina,  a
national banking association,  or any successor trust administrator appointed as
herein provided.

     Trust Estate: The corpus of the trust created by this Agreement, consisting
of the Mortgage Loans (other than any Fixed Retained Yield), such amounts as may
be held  from  time to time in the  Certificate  Account  (other  than any Fixed
Retained  Yield),  and the rights of the Trust  Administrator,  on behalf of the
Trustee to receive the proceeds of all insurance policies and performance bonds,
if any,  required to be  maintained  hereunder  or under the  related  Servicing
Agreement, property which secured a Mortgage Loan and which has been acquired by
foreclosure or deed in lieu of foreclosure.

     Trustee:  Firstar  Trust  Company,  or any successor  trustee  appointed as
herein provided.

     Uncertificated  Lower-Tier  Interests:  Any of the Class A-L1,  Class A-L2,
Class A-L3, Class A-L4, Class A-L6, Class A-LPO,  Class A-LUR,  Class M-L, Class
B-L1, Class B-L2, Class B-L3, Class B-L4 and Class B-L5 Interests.

     Unpaid  Interest  Shortfalls:  Each of the Class A Subclass Unpaid Interest
Shortfalls, the Class M Unpaid Interest Shortfall, the Class B-1 Unpaid Interest
Shortfall,  the Class  B-2  Unpaid  Interest  Shortfall,  the  Class B-3  Unpaid
Interest  Shortfall,  the Class B-4 Unpaid Interest  Shortfall and the Class B-5
Unpaid Interest Shortfall.

     Unscheduled  Principal Amount:  The sum for each outstanding  Mortgage Loan
(including  each defaulted  Mortgage Loan,  other than a Liquidated  Loan,  with
respect to which the related  Mortgaged  Property has been acquired by the Trust
Estate) of the product of (A) the Non-PO Fraction for such Mortgage Loan and (B)
the sum of the amounts  described in clauses y(ii) and y(iii) of the  definition
of Class A Non-PO  Optimal  Principal  Amount,  but without  that  amount  being
multiplied by the Class A Prepayment Percentage.

     Unscheduled  Principal Receipt:  Any Mortgagor payment or other recovery of
principal on a Mortgage Loan which is received in advance of its Due Date and is
not  accompanied  by an amount  representing  scheduled  interest for any period
subsequent to the date of prepayment,  including, without limitation,  Principal
Prepayments,  Liquidation Proceeds,  Net REO Proceeds and proceeds received from
any  condemnation  award or  proceeds  in lieu of  condemnation  other than that
portion of such proceeds  released to the Mortgagor in accordance with the terms
of the Mortgage or Prudent Servicing Practices and excluding any Net Foreclosure
Profits and  proceeds of a repurchase  of a Mortgage  Loan by the Seller and any
Substitution Principal Amounts.

     Unscheduled  Principal Receipt Period: Either a Mid-Month Receipt Period or
a Prior Month Receipt Period.

     Upper-Tier Certificate: Any one of the Class A Certificates (other than the
Class A-LR Certificate), the Class M Certificates and the Class B Certificates.

     Upper-Tier   Certificate   Account:   The  trust  account  established  and
maintained pursuant to Section 4.01(e).

     Upper-Tier  REMIC:  One of the two  separate  REMICs  comprising  the Trust
Estate, the assets of which consist of the Uncertificated  Lower-Tier  Interests
and  such  amounts  as  shall  from  time to  time  be  held  in the  Upper-Tier
Certificate Account.

     Voting  Interest:  With respect to any provisions  hereof providing for the
action,  consent  or  approval  of the  Holders of all  Certificates  evidencing
specified Voting  Interests in the Trust Estate,  (a) the Holders of the Class A
Certificates will  collectively be entitled to the Class A Voting Interest,  (b)
the Holders of the Class M  Certificates  will  collectively  be entitled to the
then applicable  percentage of the aggregate Voting Interest  represented by all
Certificates  equal to the product of (i) the ratio  obtained  by  dividing  the
Class M Principal  Balance by the sum of the Class A Non-PO  Principal  Balance,
the Class M Principal  Balance  and the Class B  Principal  Balance and (ii) the
Non-PO  Voting  Interest  and (c) the Holders of the Class B  Certificates  will
collectively  be  entitled  to the  balance  of the  aggregate  Voting  Interest
represented by all Series 1997-1 Certificates. The aggregate Voting Interests of
each Subclass of Class A  Certificates  (other than the Class A-5 and Class A-PO
Certificates) on any date will be equal to the product of (a) 99% of the Class A
Voting Interest  represented by clause (A) of the definition thereof and (b) the
fraction  obtained by dividing  the Class A Subclass  Principal  Balance of such
Class A Subclass  by the Class A Non-PO  Principal  Balance  on such  date.  The
Voting  Interest  of the  Class  A-5  Certificate  on any date will be 1% of the
amount of the Class A Voting interest on such date  represented by clause (A) of
the definition of Class A Voting Interest. The aggregate Voting Interests of the
Class A-PO Certificates on any date will be equal to the Class A Voting Interest
represented  by clause  (B) of the  definition  thereof.  The  aggregate  Voting
Interests of each Subclass of Class B  Certificates  will equal such  Subclass's
pro rata portion of the Voting  Interest  allocated to the Class B  Certificates
based on such Subclass's  outstanding principal balance. Each  Certificateholder
of a Class or Subclass will have a Voting  Interest  equal to the product of the
Voting Interest to which such Class or Subclass is collectively entitled and the
Percentage  Interest  in such Class or  Subclass  represented  by such  Holder's
Certificates.  With  respect to any  provisions  hereof  providing  for  action,
consent or  approval  of each Class or Subclass  of  Certificates  or  specified
Classes or  Subclasses of  Certificates,  each  Certificateholder  of a Class or
Subclass  will have a Voting  Interest in such Class or  Subclass  equal to such
Holder's Percentage Interest in such Class or Subclass.

     Weighted Average Net Mortgage Interest Rate: As to any Distribution Date, a
rate per  annum  equal to the  average,  expressed  as a  percentage  of the Net
Mortgage  Interest  Rates of all Mortgage Loans that were  Outstanding  Mortgage
Loans as of the Due Date in the month  preceding the month of such  Distribution
Date,  weighted on the basis of the respective  Scheduled  Principal Balances of
such Mortgage Loans.

Section 1.02.       Acts of Holders.

     (a) Any request, demand, authorization,  direction, notice, consent, waiver
or other action  provided by this  Agreement to be given or taken by Holders may
be embodied in and evidenced by one or more instruments of substantially similar
tenor signed by such Holders in person or by an agent duly appointed in writing.
Except  as  herein  otherwise  expressly  provided,  such  action  shall  become
effective when such  instrument or instruments  are delivered to the Trustee and
the Trust  Administrator.  Proof of  execution  of any such  instrument  or of a
writing  appointing  any such agent shall be sufficient  for any purpose of this
Agreement and conclusive in favor of the Trustee and the Trust Administrator, if
made in the manner  provided in this Section 1.02.  The Trustee  shall  promptly
notify the Master  Servicer in writing of the receipt of any such  instrument or
writing.

     (b) The fact and date of the execution by any Person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by a
certificate  of a notary  public  or  other  officer  authorized  by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof.  When such execution is by
a signer acting in a capacity  other than his or her individual  capacity,  such
certificate or affidavit  shall also constitute  sufficient  proof of his or her
authority. The fact and date of the execution of any such instrument or writing,
or the authority of the individual executing the same, may also be proved in any
other manner which the Trustee deems sufficient.

     (c) The ownership of Certificates  (whether or not such Certificates  shall
be overdue and  notwithstanding  any  notation  of  ownership  or other  writing
thereon made by anyone other than the Trustee,  the Trust  Administrator and the
Authenticating Agent) shall be proved by the Certificate  Register,  and neither
the Trustee, the Trust  Administrator,  the Seller nor the Master Servicer shall
be affected by any notice to the contrary.

     (d) Any request, demand, authorization,  direction, notice, consent, waiver
or other action of the Holder of any Certificate  shall bind every future Holder
of the same  Certificate  and the Holder of every  Certificate  issued  upon the
registration of transfer  thereof or in exchange  therefor or in lieu thereof in
respect of anything  done,  omitted or suffered to be done by the  Trustee,  the
Trust  Administrator,  the Seller or the Master  Servicer in  reliance  thereon,
whether or not notation of such action is made upon such Certificate.

Section 1.03.       Effect of Headings and Table of Contents.

     The  Article  and  Section  headings  in this  Agreement  and the  Table of
Contents  are for  convenience  of  reference  only and  shall  not  affect  the
interpretation or construction of this Agreement.

Section 1.04.       Benefits of Agreement.

     Nothing in this Agreement or in the Certificates, express or implied, shall
give to any  Person,  other  than  the  parties  to  this  Agreement  and  their
successors  hereunder,  the Holders of the Certificates any benefit or any legal
or equitable right, power, remedy or claim under this Agreement.


<PAGE>


                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                      ORIGINAL ISSUANCE OF THE CERTIFICATES

Section 2.01.       Conveyance of Mortgage Loans.

     The Seller,  concurrently  with the  execution  and delivery  hereof,  does
hereby assign to the Trustee, without recourse all the right, title and interest
of the Seller in and to (a) the Trust Estate, including all interest (other than
the  portion,  if any,  representing  the Fixed  Retained  Yield) and  principal
received  by the  Seller on or with  respect  to the  Mortgage  Loans  after the
Cut-Off Date (and  including  scheduled  payments of principal  and interest due
after the Cut-Off  Date but received by the Seller on or before the Cut-Off Date
and Unscheduled  Principal Receipts received or applied on the Cut-Off Date, but
not including payments of principal and interest due on the Mortgage Loans on or
before the Cut-Off Date), (b) the Insurance Policies, (c) the obligations of the
Servicers under the Servicing  Agreements with respect to the Mortgage Loans and
(d) proceeds of all the foregoing.

     In connection with such assignment,  the Seller shall, with respect to each
Mortgage Loan, deliver, or cause to be delivered, to the Trust Administrator, as
initial  custodian,  on or before the Closing Date, an Owner Mortgage Loan File.
If any Mortgage or an assignment of a Mortgage to the Trust Administrator or any
prior  assignment is in the process of being  recorded on the Closing Date,  the
Seller  shall  deliver a copy  thereof,  certified  by Norwest  Mortgage  or the
applicable Norwest Mortgage  Correspondent to be a true and complete copy of the
document sent for recording,  and the Seller shall use its best efforts to cause
each such original  recorded  document or certified copy thereof to be delivered
to the Trust Administrator promptly following its recordation.  The Seller shall
also  cause to be  delivered  to the  Trust  Administrator  any  other  original
mortgage loan document to be included in the Owner  Mortgage Loan File if a copy
thereof has been delivered.

     In lieu of recording an  assignment  of any Mortgage the Seller may, to the
extent set forth in any Servicing Agreement, deliver or cause to be delivered to
the Trust  Administrator  the assignment of the Mortgage Loan from the Seller to
the Trust  Administrator  in a form suitable for  recordation,  together with an
Opinion of Counsel to the effect that  recording  is not required to protect the
Trustee's  right,  title and interest in and to the related Mortgage Loan or, in
case a  court  should  recharacterize  the  sale  of  the  Mortgage  Loans  as a
financing, to perfect a first priority security interest in favor of the Trustee
in the related  Mortgage  Loan. In the event that the Master  Servicer  receives
notice that  recording  is required to protect the right,  title and interest of
the  Trustee  in and to any such  Mortgage  Loan  for  which  recordation  of an
assignment has not previously been required,  the Master Servicer shall promptly
notify the Trust  Administrator  and the Trust  Administrator  shall within five
Business Days (or such other  reasonable  period of time mutually agreed upon by
the Master Servicer and the Trust  Administrator)  of its receipt of such notice
deliver  each  previously  unrecorded  assignment  to the related  Servicer  for
recordation.

Section 2.02.       Acceptance by Trust Administrator.

     The Trust Administrator on behalf of the Trustee,  acknowledges  receipt of
the Mortgage Notes, the Mortgages,  the assignments and other documents referred
to in Section 2.01 above and declares that it holds and will hold such documents
and the other  documents  constituting  a part of the Owner  Mortgage Loan Files
delivered  to it in trust,  upon the trusts  herein  set forth,  for the use and
benefit of all present and future  Certificateholders.  The Trust  Administrator
agrees,  for the benefit of  Certificateholders,  to review each Owner  Mortgage
Loan File within 45 days after execution of this Agreement in order to ascertain
that all required  documents  set forth in Section  2.01 have been  executed and
received and appear regular on their face, and that such documents relate to the
Mortgage  Loans  identified in the Mortgage Loan  Schedule,  and in so doing the
Trust  Administrator  may rely on the purported due execution and genuineness of
any such document and on the purported  genuineness of any signature thereon. If
within  such  45  day  period  the  Trust   Administrator   finds  any  document
constituting  a part of an Owner Mortgage Loan File not to have been executed or
received or to be  unrelated to the Mortgage  Loans  identified  in the Mortgage
Loan  Schedule  or not to appear  regular on its face,  the Trust  Administrator
shall  promptly  (and in no event more than 30 days after the  discovery of such
defect)  notify the Seller,  which shall have a period of 60 days after the date
of such  notice  within  which to  correct or cure any such  defect.  The Seller
hereby  covenants and agrees that, if any material defect is not so corrected or
cured,  the Seller will, not later than 60 days after the Trust  Administrator's
notice to it referred to above respecting such defect, either (i) repurchase the
related Mortgage Loan or any property acquired in respect thereof from the Trust
Estate at a price  equal to (a) 100% of the  unpaid  principal  balance  of such
Mortgage Loan plus (b) accrued  interest at the Mortgage  Interest Rate less any
Fixed Retained Yield through the last day of the month in which such  repurchase
takes place or (ii) if within two years of the Startup Day, or such other period
permitted by the REMIC  Provisions,  substitute  for any Mortgage  Loan to which
such material defect relates, a new mortgage loan (a "Substitute Mortgage Loan")
having such  characteristics so that the  representations  and warranties of the
Seller set forth in Section 2.03(b) hereof (other than Section 2.03(b)(i)) would
not have been  incorrect had such  Substitute  Mortgage Loan  originally  been a
Mortgage  Loan.  In no event shall any  Substitute  Mortgage Loan have an unpaid
principal  balance,  as of the date of substitution,  greater than the Scheduled
Principal  Balance (reduced by the scheduled payment of principal due on the Due
Date in the  month  of  substitution)  of the  Mortgage  Loan  for  which  it is
substituted.   In  addition,   such  Substitute   Mortgage  Loan  shall  have  a
Loan-to-Value  Ratio less than or equal to and a Mortgage Interest Rate equal to
that of the Mortgage Loan for which it is substituted.

     In the case of a repurchased Mortgage Loan or property,  the purchase price
shall be deposited by the Seller in the  Certificate  Account  maintained by the
Master Servicer  pursuant to Section 3.01. In the case of a Substitute  Mortgage
Loan,  the Owner  Mortgage Loan File relating  thereto shall be delivered to the
Trust  Administrator and the Substitution  Principal  Amount,  together with (i)
interest on such  Substitution  Principal  Amount at the applicable Net Mortgage
Interest  Rate to the  following  Due Date of such  Mortgage Loan which is being
substituted for and (ii) an amount equal to the aggregate amount of unreimbursed
Periodic Advances in respect of interest previously made by the Servicer, Master
Servicer or Trust  Administrator  with respect to such Mortgage  Loan,  shall be
deposited in the  Certificate  Account.  The Monthly  Payment on the  Substitute
Mortgage Loan for the Due Date in the month of substitution shall not be part of
the  Trust  Estate.   Upon  receipt  by  the  Trust   Administrator  of  written
notification of any such deposit signed by an officer of the Seller,  or the new
Owner  Mortgage  Loan File,  as the case may be, the Trust  Administrator  shall
release to the Seller the related Owner Mortgage Loan File and shall execute and
deliver  such  instrument  of  transfer  or  assignment,  in each  case  without
recourse,  as shall be  necessary  to vest in the  Seller  legal and  beneficial
ownership of such  substituted or repurchased  Mortgage Loan or property.  It is
understood  and agreed that the  obligation  of the Seller to  substitute  a new
Mortgage Loan for or repurchase any Mortgage Loan or property as to which such a
material  defect in a  constituent  document  exists shall  constitute  the sole
remedy  respecting such defect  available to the  Certificateholders,  the Trust
Administrator  on  behalf  of the  Trustee  and the  Trustee  on  behalf  of the
Certificateholders.  The failure of the Trust  Administrator  to give any notice
contemplated  herein  within  forty-five  (45) days after the  execution of this
Agreement shall not affect or relieve the Seller's  obligation to repurchase any
Mortgage Loan pursuant to this Section 2.02.

     The Trust  Administrator may,  concurrently with the execution and delivery
hereof or at any time thereafter, enter into a Custodial Agreement substantially
in the form of  Exhibit  E hereto  pursuant  to which  the  Trust  Administrator
appoints a Custodian to hold the Mortgage Notes, the Mortgages,  the assignments
and  other  documents  related  to the  Mortgage  Loans  received  by the  Trust
Administrator,  as agent for the Trustee in trust for the benefit of all present
and future  Certificateholders,  which may provide, among other things, that the
Custodian  shall conduct the review of such  documents  required under the first
paragraph of this Section 2.02.

Section 2.03.      Representations and Warranties of the Master Servicer and the
                   Seller.

     (a) The Master Servicer  hereby  represents and warrants to the Trustee and
the Trust  Administrator for the benefit of  Certificateholders  that, as of the
date of execution of this Agreement:

                    (i) The Master  Servicer is a national  banking  association
          duly chartered and validly existing in good standing under the laws of
          the United States;

                    (ii) The  execution  and  delivery of this  Agreement by the
          Master  Servicer and its  performance and compliance with the terms of
          this  Agreement  will not  violate  the  Master  Servicer's  corporate
          charter or by-laws or  constitute a default (or an event  which,  with
          notice or lapse of time, or both,  would  constitute a default) under,
          or result in the breach of, any material contract,  agreement or other
          instrument  to which the  Master  Servicer  is a party or which may be
          applicable to the Servicer or any of its assets;

                    (iii) This Agreement, assuming due authorization,  execution
          and delivery by the Trustee,  the Trust  Administrator and the Seller,
          constitutes  a valid,  legal  and  binding  obligation  of the  Master
          Servicer,  enforceable  against it in accordance with the terms hereof
          subject  to   applicable   bankruptcy,   insolvency,   reorganization,
          moratorium  and other laws  affecting  the  enforcement  of creditors'
          rights  generally and to general  principles of equity,  regardless of
          whether such enforcement is considered in a proceeding in equity or at
          law;

                    (iv) The Master  Servicer is not in default  with respect to
          any order or decree of any court or any order, regulation or demand of
          any federal,  state,  municipal or governmental  agency, which default
          might have consequences that would materially and adversely affect the
          condition (financial or other) or operations of the Master Servicer or
          its  properties  or might  have  consequences  that  would  affect its
          performance hereunder; and

                    (v) No  litigation  is pending or, to the best of the Master
          Servicer's  knowledge,  threatened  against the Master  Servicer which
          would  prohibit its entering  into this  Agreement or  performing  its
          obligations under this Agreement.

     It is understood  and agreed that the  representations  and  warranties set
forth in this Section  2.03(a) shall survive  delivery of the  respective  Owner
Mortgage Loan Files to the Trust Administrator or the Custodian.

     (b) The Seller hereby  represents and warrants to the Trustee and the Trust
Administrator  for the  benefit of  Certificateholders  that,  as of the date of
execution  of this  Agreement,  with  respect  to the  Mortgage  Loans,  or each
Mortgage Loan, as the case may be:

                    (i) The  information set forth in the Mortgage Loan Schedule
          was true and  correct in all  material  respects  at the date or dates
          respecting  which such  information  is  furnished as specified in the
          Mortgage Loan Schedule;

                    (ii)  Immediately  prior  to  the  transfer  and  assignment
          contemplated  herein,  the Seller was the sole owner and holder of the
          Mortgage Loan free and clear of any and all liens, pledges, charges or
          security  interests of any nature and has full right and  authority to
          sell and assign the same;

                    (iii) The Mortgage is a valid,  subsisting  and  enforceable
          first  lien on the  property  therein  described,  and  the  Mortgaged
          Property  is free  and  clear of all  encumbrances  and  liens  having
          priority over the first lien of the Mortgage except for liens for real
          estate taxes and special assessments not yet due and payable and liens
          or interests  arising  under or as a result of any  federal,  state or
          local law,  regulation  or ordinance  relating to hazardous  wastes or
          hazardous  substances,  and,  if the related  Mortgaged  Property is a
          condominium  unit, any lien for common charges permitted by statute or
          homeowners association fees; and if the Mortgaged Property consists of
          shares of a cooperative housing corporation,  any lien for amounts due
          to the  cooperative  housing  corporation  for unpaid  assessments  or
          charges or any lien of any assignment of rents or maintenance expenses
          secured  by  the  real  property  owned  by  the  cooperative  housing
          corporation;   and  any  security   agreement,   chattel  mortgage  or
          equivalent   document   related  to,  and   delivered   to  the  Trust
          Administrator  or to the Custodian  with, any Mortgage  establishes in
          the Seller a valid and subsisting first lien on the property described
          therein  and the  Seller has full right to sell and assign the same to
          the Trustee;

                    (iv) Neither the Seller nor any prior holder of the Mortgage
          or the related  Mortgage Note has modified the Mortgage or the related
          Mortgage  Note  in  any  material  respect,  satisfied,   canceled  or
          subordinated the Mortgage in whole or in part,  released the Mortgaged
          Property  in  whole  or in part  from  the  lien of the  Mortgage,  or
          executed any  instrument  of release,  cancellation,  modification  or
          satisfaction,  except in each  case as is  reflected  in an  agreement
          delivered  to the Trust  Administrator  or the  Custodian  pursuant to
          Section 2.01;

                    (v) All taxes, governmental assessments, insurance premiums,
          and water,  sewer and municipal  charges,  which previously became due
          and owing have been paid, or an escrow of funds has been  established,
          to the extent  permitted  by law, in an amount  sufficient  to pay for
          every such item which remains unpaid;  and the Seller has not advanced
          funds,  or  received  any  advance of funds by a party  other than the
          Mortgagor, directly or indirectly (except pursuant to any Subsidy Loan
          arrangement)  for the payment of any amount  required by the Mortgage,
          except for interest  accruing  from the date of the  Mortgage  Note or
          date of  disbursement  of the  Mortgage  Loan  proceeds,  whichever is
          later,  to the day which  precedes  by thirty  days the first Due Date
          under the related Mortgage Note;

                    (vi) The  Mortgaged  Property is undamaged  by water,  fire,
          earthquake,  earth movement other than earthquake,  windstorm,  flood,
          tornado or similar casualty  (excluding  casualty from the presence of
          hazardous wastes or hazardous substances, as to which the Seller makes
          no  representations),  so as to  affect  adversely  the  value  of the
          Mortgaged  Property as security for the  Mortgage  Loan or the use for
          which  the  premises  were  intended  and to the best of the  Seller's
          knowledge,  there is no proceeding pending or threatened for the total
          or partial condemnation of the Mortgaged Property;

                    (vii)  The  Mortgaged  Property  is free  and  clear  of all
          mechanics'  and  materialmen's  liens or liens in the nature  thereof;
          provided, however, that this warranty shall be deemed not to have been
          made at the time of the  initial  issuance  of the  Certificates  if a
          title policy affording, in substance,  the same protection afforded by
          this warranty is furnished to the Trust Administrator by the Seller;

                    (viii)  Except for Mortgage  Loans  secured by Co-op Shares,
          the  Mortgaged  Property  consists  of a fee  simple  estate  in  real
          property;  all of the improvements  which are included for the purpose
          of  determining  the  appraised  value of the  Mortgaged  Property lie
          wholly within the  boundaries and building  restriction  lines of such
          property and no improvements on adjoining properties encroach upon the
          Mortgaged  Property  (unless  insured  against under the related title
          insurance  policy);  and to the best of the  Seller's  knowledge,  the
          Mortgaged  Property  and all  improvements  thereon  comply  with  all
          requirements  of  any  applicable  zoning  and  subdivision  laws  and
          ordinances;

                    (ix) The Mortgage Loan meets, or is exempt from,  applicable
          state or federal laws, regulations and other requirements,  pertaining
          to usury, and the Mortgage Loan is not usurious;

                    (x) To the best of the Seller's knowledge,  all inspections,
          licenses and  certificates  required to be made or issued with respect
          to all occupied  portions of the Mortgaged  Property and, with respect
          to the use and occupancy of the same,  including,  but not limited to,
          certificates  of occupancy and fire  underwriting  certificates,  have
          been made or obtained from the appropriate authorities;

                    (xi)  All  payments  required  to be made up to the Due Date
          immediately  preceding  the Cut-Off Date for such  Mortgage Loan under
          the terms of the related  Mortgage Note have been made and no Mortgage
          Loan had more  than one  delinquency  in the 12 months  preceding  the
          Cut-Off Date;

                    (xii) The  Mortgage  Note,  the related  Mortgage  and other
          agreements executed in connection  therewith are genuine,  and each is
          the  legal,  valid  and  binding  obligation  of  the  maker  thereof,
          enforceable in accordance with its terms,  except as such  enforcement
          may be  limited by  bankruptcy,  insolvency,  reorganization  or other
          similar laws affecting the enforcement of creditors'  rights generally
          and  by  general  equity   principles   (regardless  of  whether  such
          enforcement  is considered in a proceeding in equity or at law);  and,
          to the best of the  Seller's  knowledge,  all parties to the  Mortgage
          Note and the Mortgage had legal  capacity to execute the Mortgage Note
          and the Mortgage and each Mortgage Note and Mortgage has been duly and
          properly executed by the Mortgagor;

                    (xiii) Any and all  requirements  of any  federal,  state or
          local  law with  respect  to the  origination  of the  Mortgage  Loans
          including,   without   limitation,   truth-in-lending,   real   estate
          settlement  procedures,   consumer  credit  protection,  equal  credit
          opportunity or disclosure  laws  applicable to the Mortgage Loans have
          been complied with;

                    (xiv) The  proceeds  of the  Mortgage  Loans have been fully
          disbursed,  there is no requirement for future advances thereunder and
          any and all  requirements  as to completion of any on-site or off-site
          improvements and as to disbursements of any escrow funds therefor have
          been complied  with (except for escrow funds for exterior  items which
          could  not be  completed  due to  weather);  and all  costs,  fees and
          expenses  incurred in making,  closing or recording  the Mortgage Loan
          have been paid,  except  recording  fees with respect to Mortgages not
          recorded as of the Closing Date;

                    (xv) The Mortgage Loan (except any Mortgage Loan  identified
          on the  Mortgage  Loan  Schedule  as a  T.O.P.  Mortgage  Loan and any
          Mortgage  Loan secured by Mortgaged  Property  located in Iowa,  as to
          which an opinion of counsel of the type  customarily  rendered in such
          State in lieu of title insurance is instead received) is covered by an
          American Land Title  Association  mortgagee title insurance  policy or
          other generally  acceptable form of policy or insurance  acceptable to
          FNMA or FHLMC,  issued by a title insurer  acceptable to FNMA or FHLMC
          insuring the originator,  its successors and assigns,  as to the first
          priority lien of the Mortgage in the original  principal amount of the
          Mortgage  Loan  and  subject  only to (A) the  lien  of  current  real
          property taxes and assessments not yet due and payable, (B) covenants,
          conditions  and  restrictions,  rights  of way,  easements  and  other
          matters of public  record as of the date of recording of such Mortgage
          acceptable to mortgage  lending  institutions in the area in which the
          Mortgaged  Property  is located  or  specifically  referred  to in the
          appraisal  performed in connection with the origination of the related
          Mortgage  Loan,  (C) liens created  pursuant to any federal,  state or
          local law,  regulation or ordinance  affording  liens for the costs of
          clean-up of  hazardous  substances  or  hazardous  wastes or for other
          environmental  protection purposes and (D) such other matters to which
          like properties are commonly subject which do not individually,  or in
          the aggregate,  materially interfere with the benefits of the security
          intended  to be  provided  by the  Mortgage;  the  Seller  is the sole
          insured of such mortgagee  title insurance  policy,  the assignment to
          the Trust  Administrator,  on behalf of the  Trustee,  of the Seller's
          interest in such mortgagee title insurance policy does not require any
          consent of or  notification to the insurer which has not been obtained
          or made, such mortgagee  title  insurance  policy is in full force and
          effect and will be in full  force and effect and inure to the  benefit
          of the Trust  Administrator  on behalf of the Trustee,  no claims have
          been made under such mortgagee  title insurance  policy,  and no prior
          holder of the related Mortgage, including the Seller, has done, by act
          or  omission,  anything  which  would  impair  the  coverage  of  such
          mortgagee title insurance policy;

                    (xvi) The Mortgaged  Property securing each Mortgage Loan is
          insured by an insurer acceptable to FNMA or FHLMC against loss by fire
          and such  hazards as are covered  under a standard  extended  coverage
          endorsement, in an amount which is not less than the lesser of 100% of
          the  insurable  value of the  Mortgaged  Property and the  outstanding
          principal  balance of the Mortgage Loan, but in no event less than the
          minimum amount necessary to fully compensate for any damage or loss on
          a replacement  cost basis; if the Mortgaged  Property is a condominium
          unit, it is included  under the coverage  afforded by a blanket policy
          for the  project;  if  upon  origination  of the  Mortgage  Loan,  the
          improvements  on the Mortgaged  Property were in an area identified in
          the Federal  Register by the Federal  Emergency  Management  Agency as
          having special flood  hazards,  a flood  insurance  policy meeting the
          requirements  of  the  current  guidelines  of the  Federal  Insurance
          Administration  is in effect  with a  generally  acceptable  insurance
          carrier, in an amount representing coverage not less than the least of
          (A) the  outstanding  principal  balance of the Mortgage Loan, (B) the
          full  insurable  value of the  Mortgaged  Property and (C) the maximum
          amount of  insurance  which  was  available  under the Flood  Disaster
          Protection  Act of 1973;  and each  Mortgage  obligates  the Mortgagor
          thereunder to maintain all such insurance at the Mortgagor's  cost and
          expense;

                    (xvii) To the best of the  Seller's  knowledge,  there is no
          default, breach, violation or event of acceleration existing under the
          Mortgage or the related  Mortgage  Note and no event  which,  with the
          passage of time or with notice and the expiration of any grace or cure
          period,  would  constitute  a default,  breach,  violation or event of
          acceleration; the Seller has not waived any default, breach, violation
          or event of  acceleration;  and no  foreclosure  action  is  currently
          threatened or has been commenced with respect to the Mortgage Loan;

                    (xviii) No Mortgage Note or Mortgage is subject to any right
          of rescission, set-off, counterclaim or defense, including the defense
          of usury,  nor will the  operation of any of the terms of the Mortgage
          Note or Mortgage, or the exercise of any right thereunder,  render the
          Mortgage  Note or  Mortgage  unenforceable,  in whole  or in part,  or
          subject  it to any  right  of  rescission,  set-off,  counterclaim  or
          defense,  including  the  defense  of  usury,  and no  such  right  of
          rescission,  set-off,  counterclaim  or defense has been asserted with
          respect thereto;

                    (xix) Each  Mortgage  Note is  payable in monthly  payments,
          resulting in complete amortization of the Mortgage Loan over a term of
          not more than 180 months;

                    (xx)  Each  Mortgage  contains   customary  and  enforceable
          provisions  such as to render the rights  and  remedies  of the holder
          thereof adequate for the realization against the Mortgaged Property of
          the  benefits  of the  security,  including  realization  by  judicial
          foreclosure  (subject to any limitation  arising from any  bankruptcy,
          insolvency  or other law for the relief of  debtors),  and there is no
          homestead or other  exemption  available to the Mortgagor  which would
          interfere with such right of foreclosure;

                    (xxi) To the best of the Seller's knowledge, no Mortgagor is
          a debtor in any state or federal bankruptcy or insolvency proceeding;

                    (xxii)  Each  Mortgaged  Property  is  located in the United
          States and consists of a one- to four-unit residential property, which
          may include a detached home, townhouse,  condominium unit or a unit in
          a planned unit  development  or, in the case of Mortgage Loans secured
          by Co-op Shares, leases or occupancy agreements; and

                    (xxiii) The Mortgage Loan is a "qualified  mortgage"  within
          the meaning of Section 860G of the Code.

     Notwithstanding the foregoing, no representations or warranties are made by
the Seller as to the  environmental  condition of any  Mortgaged  Property;  the
absence,  presence or effect of hazardous wastes or hazardous  substances on any
Mortgaged  Property;  any  casualty  resulting  from the  presence  or effect of
hazardous  wastes  or  hazardous  substances  on,  near or  emanating  from  any
Mortgaged  Property;  the  impact  on  Certificateholders  of any  environmental
condition  or  presence  of any  hazardous  substance  on or near any  Mortgaged
Property;  or the  compliance of any Mortgaged  Property with any  environmental
laws, nor is any agent,  person or entity  otherwise  affiliated with the Seller
authorized  or able to make any such  representation,  warranty or assumption of
liability relative to any Mortgaged Property. In addition, no representations or
warranties are made by the Seller with respect to the absence or effect of fraud
in the origination of any Mortgage Loan.

     It is understood  and agreed that the  representations  and  warranties set
forth in this Section  2.03(b) shall survive  delivery of the  respective  Owner
Mortgage Loan Files to the Trust Administrator and shall inure to the benefit of
the  Trust  Administrator,   on  behalf  of  the  Trustee   notwithstanding  any
restrictive or qualified endorsement or assignment.

     (c) Upon discovery by either the Seller, the Master Servicer,  the Trustee,
the Trust  Administrator  or the Custodian that any of the  representations  and
warranties made in subsection (b) above is not accurate (referred to herein as a
"breach") and that such breach materially and adversely affects the interests of
the  Certificateholders in the related 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).  Within 60 days of the earlier
of its  discovery or its receipt of notice of any such breach,  the Seller shall
cure such breach in all  material  respects or shall either (i)  repurchase  the
Mortgage Loan or any property  acquired in respect thereof from the Trust Estate
at a price equal to (A) 100% of the unpaid  principal  balance of such  Mortgage
Loan  plus (B)  accrued  interest  at the Net  Mortgage  Interest  Rate for such
Mortgage  Loan through the last day of the month in which such  repurchase  took
place or (ii) if within  two years of the  Startup  Day,  or such  other  period
permitted by the REMIC  Provisions,  substitute  for such  Mortgage  Loan in the
manner described in Section 2.02. The purchase price of any repurchase described
in this paragraph and the Substitution  Principal  Amount,  if any, plus accrued
interest  thereon and the other amounts  referred to in Section  2.02,  shall be
deposited  in the  Certificate  Account.  It is  understood  and agreed that the
obligation of the Seller to  repurchase  or substitute  for any Mortgage Loan or
property  as to  which  such a  breach  has  occurred  and is  continuing  shall
constitute   the   sole   remedy    respecting   such   breach    available   to
Certificateholders,  the Trust  Administrator  on behalf of the  Trustee  or the
Trustee on behalf of Certificateholders, and such obligation shall survive until
termination of the Trust Estate hereunder.

Section 2.04.       Execution and Delivery of Certificates.

     The Trust  Administrator  acknowledges the assignment to it of the Mortgage
Loans and the delivery of the Owner Mortgage Loan Files to it, and, concurrently
with such delivery, (i) acknowledges the issuance of and hereby declares that it
holds the Uncertificated  Lower-Tier Interests on behalf of the Upper-Tier REMIC
and  Certificateholders and (ii) has executed and delivered to or upon the order
of the Seller, in exchange for the Mortgage Loans and Uncertificated  Lower-Tier
Interests  together with all other assets  included in the  definition of "Trust
Estate",  receipt of which is hereby  acknowledged,  Certificates  in authorized
denominations  which,  together with the  Uncertificated  Lower-Tier  Interests,
evidence ownership of the entire Trust Estate.

Section 2.05.       Designation of Certificates; Designation of
                    Startup Day and Latest Possible Maturity Date.

     The Seller hereby designates the Subclasses of Class A Certificates  (other
than the Class A-R and Class A-LR  Certificates),  the Class M Certificates  and
the Subclasses of Class B Certificates as classes of "regular interests" and the
Class  A-R  Certificate  as the  single  class  of  "residual  interest"  in the
Upper-Tier  REMIC for the purposes of Code Sections  860G(a)(1) and  860G(a)(2),
respectively.  The Seller hereby  further  designates  the Class AL-1  Interest,
Class A-L2  Interest,  Class A-L3  Interest,  Class  A-L4  Interest,  Class A-L6
Interest, Class A-LPO Interest, Class A-LUR Interest, Class B-L1 Interest, Class
B-L2 Interest, Class B-L3 Interest, Class B-L4 Interest, Class B-L5 Interest and
Class M-L  Interest  as  classes  of  "regular  interests"  and the  Class  A-LR
Certificate as the single class of "residual  interest" in the Lower-Tier  REMIC
for the purposes of Code Sections 860G(a)(1) and 860G(a)(2),  respectively.  The
Closing Date is hereby designated as the "Startup Day" of each of the Upper-Tier
REMIC and Lower-Tier  REMIC within the meaning of Code Section  860G(a)(9).  The
"latest possible maturity date" of the regular interests in the Upper-Tier REMIC
and  Lower-Tier  REMIC  is  February  25,  2012  for  purposes  of Code  Section
860G(a)(1).


<PAGE>


                                   ARTICLE III

                  ADMINISTRATION OF THE TRUST ESTATE: SERVICING
                              OF THE MORTGAGE LOANS

Section 3.01.       Certificate Account.

     (a) The Master Servicer shall establish and maintain a Certificate  Account
for the deposit of funds  received by the Master  Servicer  with  respect to the
Mortgage  Loans  serviced by each  Servicer  pursuant  to each of the  Servicing
Agreements.  Such account shall be maintained as an Eligible Account. The Master
Servicer  shall give notice to each  Servicer  and the Seller of the location of
the Certificate Account and of any change in the location thereof.

     (b) The Master Servicer shall deposit into the  Certificate  Account on the
day of receipt thereof all amounts received by it from any Servicer  pursuant to
any of the  Servicing  Agreements,  and shall,  in  addition,  deposit  into the
Certificate  Account the following amounts,  in the case of amounts specified in
clause  (i),  not later than the  Distribution  Date on which such  amounts  are
required to be distributed to Certificateholders and, in the case of the amounts
specified in clause (ii), not later than the Business Day next following the day
of receipt and posting by the Master Servicer:

                    (i) Periodic  Advances  pursuant to Section  3.03(a) made by
          the Master Servicer or the Trust Administrator, if any; and

                    (ii) in the case of any Mortgage Loan that is repurchased by
          the Seller  pursuant to Section  2.02 or 2.03 or that is  auctioned by
          the Master  Servicer  pursuant  to Section  3.08 or  purchased  by the
          Master  Servicer  pursuant to Section 3.08 or 9.01, the purchase price
          therefor or, where applicable,  any Substitution  Principal Amount and
          any  amounts   received  in  respect  of  the   interest   portion  of
          unreimbursed Periodic Advances.

     (c) The Master Servicer shall cause the funds in the Certificate Account to
be invested in Eligible  Investments.  No such Eligible Investments will be sold
or  disposed  of at a gain prior to  maturity  unless the  Master  Servicer  has
received an Opinion of Counsel or other  evidence  satisfactory  to it that such
sale or disposition  will not cause the Trust Estate to be subject to Prohibited
Transactions Tax,  otherwise subject the Trust Estate to tax, or cause either of
the Upper-Tier REMIC or the Lower-Tier REMIC to fail to qualify as a REMIC while
any  Certificates  are  outstanding.  Any amounts  deposited in the  Certificate
Account prior to the Distribution  Date shall be invested for the account of the
Master   Servicer  and  any  investment   income  thereon  shall  be  additional
compensation to the Master Servicer for services  rendered under this Agreement.
The amount of any losses  incurred in respect of any such  investments  shall be
deposited in the Certificate Account by the Master Servicer out of its own funds
immediately as realized.

Section 3.02.       Permitted Withdrawals from the Certificate Account.

     (a) The Master Servicer may, from time to time, make  withdrawals  from the
Certificate Account for the following purposes (limited, in the case of Servicer
reimbursements, to cases where funds in the respective Custodial P&I Account are
not sufficient therefor):

                   (i) to reimburse the Master Servicer, the Trust Administrator
         or any Servicer for Periodic  Advances  made by the Master  Servicer or
         the Trust  Administrator  pursuant to Section  3.03(a) or any  Servicer
         pursuant  to  any   Servicing   Agreement   with  respect  to  previous
         Distribution  Dates,  such  right  to  reimbursement  pursuant  to this
         subclause  (i) being  limited to amounts  received  on or in respect of
         particular  Mortgage Loans  (including,  for this purpose,  Liquidation
         Proceeds, REO Proceeds and proceeds from the purchase, sale, repurchase
         or substitution of Mortgage Loans pursuant to Sections 2.02, 2.03, 3.08
         or 9.01) respecting which any such Periodic Advance was made;

                  (ii) to reimburse  any  Servicer,  the Master  Servicer or the
         Trust  Administrator for any Periodic Advances determined in good faith
         to have become  Nonrecoverable  Advances  provided,  however,  that any
         portion of Nonrecoverable  Advances  representing  Fixed Retained Yield
         shall be  reimbursable  only from amounts  constituting  Fixed Retained
         Yield and not from the assets of the Trust Estate;

                 (iii) to reimburse  the Master  Servicer or any  Servicer  from
         Liquidation  Proceeds for Liquidation Expenses and for amounts expended
         by the  Master  Servicer  or any  Servicer  pursuant  hereto  or to any
         Servicing Agreement, respectively, in good faith in connection with the
         restoration of damaged property or for foreclosure expenses;

                  (iv) from any  Mortgagor  payment on account  of  interest  or
         other  recovery   (including  Net  REO  Proceeds)  with  respect  to  a
         particular  Mortgage Loan, to pay the Master Servicing Fee with respect
         to such Mortgage Loan to the Master Servicer;

                   (v) to  reimburse  the Master  Servicer,  any Servicer or the
         Trust  Administrator  (or, in certain  cases,  the Seller) for expenses
         incurred by it (including taxes paid on behalf of the Trust Estate) and
         recoverable  by or  reimbursable  to it  pursuant  to Section  3.03(c),
         3.03(d) or 6.03 or the second  sentence of Section  8.14(a) or pursuant
         to such  Servicer's  Servicing  Agreement,  provided  such expenses are
         "unanticipated" within the meaning of the REMIC Provisions;

                  (vi) to pay to the Seller or other  purchaser  with respect to
         each  Mortgage  Loan or property  acquired in respect  thereof that has
         been  repurchased  or  replaced  pursuant  to  Section  2.02 or 2.03 or
         auctioned  pursuant  to Section  3.08 or to pay to the Master  Servicer
         with  respect to each  Mortgage  Loan or  property  acquired in respect
         thereof that has been  purchased  pursuant to Section 3.08 or 9.01, all
         amounts  received  thereon and not required to be distributed as of the
         date on which the related  repurchase  or purchase  price or  Scheduled
         Principal Balance was determined;

                    (vii) to remit funds to the Paying  Agent in the amounts and
         in the manner provided for herein;

                    (viii) to pay to the Master  Servicer any interest earned on
         or investment income with respect to funds in the Certificate Account;

                  (ix) to pay to the Master  Servicer or any Servicer out of Net
         Liquidation  Proceeds  allocable  to interest  the amount of any unpaid
         Master  Servicing  Fee or Servicing  Fee (as adjusted  pursuant to such
         Servicer's  Servicing  Agreement) and any unpaid  assumption fees, late
         payment  charges or other  Mortgagor  charges on the  related  Mortgage
         Loan;

                    (x) to  withdraw  from the  Certificate  Account  any amount
         deposited  in the  Certificate  Account  that was not  required  to be
         deposited therein;

                    (xi) to clear and terminate the Certificate Account pursuant
         to Section 9.01; and

                  (xii) to pay to Norwest Mortgage from any Mortgagor payment on
         account of interest or other recovery (including Net REO Proceeds) with
         respect to a particular  Mortgage Loan, the Fixed  Retained  Yield,  if
         any, with respect to such Mortgage Loan; provided,  however,  that with
         respect to any payment of interest  received by the Master  Servicer in
         respect of a Mortgage  Loan  (whether paid by the Mortgagor or received
         as Liquidation Proceeds, Insurance Proceeds or otherwise) which is less
         than the full amount of interest then due with respect to such Mortgage
         Loan, only that portion of such payment of interest that bears the same
         relationship  to the total  amount of such  payment of  interest as the
         Fixed  Retained  Yield Rate,  if any, in respect of such  Mortgage Loan
         bears to the  Mortgage  Interest  Rate shall be  allocated to the Fixed
         Retained Yield with respect thereto.

     (b) The Master Servicer shall keep and maintain separate  accounting,  on a
Mortgage Loan by Mortgage Loan basis,  for the purpose of justifying any payment
to and withdrawal from the Certificate Account.

Section 3.03.       Advances by Master Servicer and Trust Administrator.

     (a) In the  event an Other  Servicer  fails to make any  required  Periodic
Advances of principal and interest on a Mortgage Loan as required by the related
Other Servicing  Agreement prior to the Distribution Date occurring in the month
during  which such  Periodic  Advance is due,  the  Master  Servicer  shall make
Periodic  Advances to the extent provided hereby.  In the event Norwest Mortgage
fails to make any  required  Periodic  Advances of  principal  and interest on a
Mortgage  Loan as  required  by the  Norwest  Servicing  Agreement  prior to the
Distribution  Date occurring in the month during which such Periodic  Advance is
due, the Trust Administrator shall, to the extent required by Section 8.15, make
such Periodic  Advance to the extent  provided  hereby,  provided that the Trust
Administrator  has previously  received the  certificate of the Master  Servicer
described in the following  sentence.  The Master  Servicer shall certify to the
Trust Administrator with respect to any such Distribution Date (i) the amount of
Periodic  Advances  required of Norwest Mortgage or such Other Servicer,  as the
case may be, (ii) the amount actually advanced,  (iii) the amount that the Trust
Administrator  or Master  Servicer  is required  to advance  hereunder  and (iv)
whether the Master Servicer has determined that it reasonably believes that such
Periodic  Advance is a  Nonrecoverable  Advance.  Amounts  advanced by the Trust
Administrator  or Master Servicer shall be deposited in the Certificate  Account
on the related  Distribution Date.  Notwithstanding  the foregoing,  neither the
Master Servicer nor the Trust Administrator will be obligated to make a Periodic
Advance that it reasonably  believes to be a Nonrecoverable  Advance.  The Trust
Administrator  may  conclusively  rely  for any  determination  to be made by it
hereunder  upon the  determination  of the Master  Servicer  as set forth in its
certificate.

     (b) To the extent an Other  Servicer fails to make an advance on account of
the taxes or  insurance  premiums  with  respect  to a  Mortgage  Loan  required
pursuant to the related Other Servicing Agreement, the Master Servicer shall, if
the Master  Servicer  knows of such failure of the Servicer,  advance such funds
and take such steps as are necessary to pay such taxes or insurance premiums. To
the extent Norwest  Mortgage fails to make an advance on account of the taxes or
insurance  premiums  with respect to a Mortgage  Loan  required  pursuant to the
Norwest Servicing  Agreement,  the Master Servicer shall, if the Master Servicer
knows of such failure of Norwest  Mortgage,  certify to the Trust  Administrator
that such failure has occurred.  Upon receipt of such  certification,  the Trust
Administrator  shall  advance such funds and take such steps as are necessary to
pay such taxes or insurance premiums.

     (c) The Master Servicer and the Trust  Administrator shall each be entitled
to be reimbursed from the Certificate  Account for any Periodic  Advance made by
it under  Section  3.03(a) to the extent  described  in Section  3.02(a)(i)  and
(a)(ii). The Master Servicer and the Trust Administrator shall be entitled to be
reimbursed  pursuant  to Section  3.02(a)(v)  for any  advance by it pursuant to
Section 3.03(b). The Master Servicer shall diligently pursue restoration of such
amount to the Certificate Account from the related Servicer. The Master Servicer
shall,  to the extent it has not already  done so, upon the request of the Trust
Administrator,  withdraw  from the  Certificate  Account  and remit to the Trust
Administrator  any  amounts  to which the Trust  Administrator  is  entitled  as
reimbursement pursuant to Section 3.02 (a)(i), (ii) and (v).

     (d) Except as  provided  in Section  3.03(a)  and (b),  neither  the Master
Servicer  nor the Trust  Administrator  shall be  required to pay or advance any
amount  which  any  Servicer  was  required,  but  failed,  to  deposit  in  the
Certificate Account.

Section 3.04.       Trust Administrator to Cooperate;
                    Release of Owner Mortgage Loan Files.

     Upon the  receipt  by the  Master  Servicer  of a Request  for  Release  in
connection  with the deposit by a Servicer into the  Certificate  Account of the
proceeds from a Liquidated  Loan or of a Prepayment in Full, the Master Servicer
shall  confirm  to the  Trust  Administrator  that all  amounts  required  to be
remitted to the  Certificate  Account in connection with such Mortgage Loan have
been so  deposited,  and shall  deliver  such  Request  for Release to the Trust
Administrator.  The Trust Administrator  shall, within five Business Days of its
receipt of such a Request for Release,  release the related Owner  Mortgage Loan
File to the  Master  Servicer  or such  Servicer,  as  requested  by the  Master
Servicer. No expenses incurred in connection with any instrument of satisfaction
or deed of reconveyance shall be chargeable to the Certificate Account.

     From time to time and as  appropriate  for the servicing or  foreclosure of
any Mortgage Loan,  including but not limited to, collection under any insurance
policies, or to effect a partial release of any Mortgaged Property from the lien
of the Mortgage,  the Servicer of such Mortgage Loan shall deliver to the Master
Servicer a Request for Release.  Upon the Master Servicer's  receipt of any such
Request for Release,  the Master Servicer shall promptly forward such request to
the Trust Administrator and the Trust Administrator  shall, within five Business
Days,  release the related Owner  Mortgage  Loan File to the Master  Servicer or
such Servicer, as requested by the Master Servicer. Any such Request for Release
shall  obligate  the Master  Servicer or such  Servicer,  as the case may be, to
return each and every document previously requested from the Owner Mortgage Loan
File to the Trust  Administrator  by the  twenty-first day following the release
thereof,  unless (i) the Mortgage Loan has been  liquidated and the  Liquidation
Proceeds  relating to the Mortgage Loan have been  deposited in the  Certificate
Account or (ii) the Owner Mortgage Loan File or such document has been delivered
to an attorney,  or to a public trustee or other public  official as required by
law, for purposes of  initiating or pursuing  legal action or other  proceedings
for  the   foreclosure   of  the  Mortgaged   Property   either   judicially  or
non-judicially, and the Master Servicer has delivered to the Trust Administrator
a certificate of the Master Servicer or such Servicer  certifying as to the name
and  address  of the  Person  to which  such  Owner  Mortgage  Loan File or such
document  was  delivered  and the  purpose or purposes  of such  delivery.  Upon
receipt of an  Officer's  Certificate  of the Master  Servicer or such  Servicer
stating that such Mortgage Loan was liquidated and that all amounts  received or
to be received in  connection  with such  liquidation  which are  required to be
deposited  into the  Certificate  Account have been so  deposited,  or that such
Mortgage Loan has become an REO Mortgage  Loan, the Request for Release shall be
released by the Trust Administrator to the Master Servicer or such Servicer,  as
appropriate.

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

Section  3.05.       Reports  to the  Trustee  and Trust  Administrator;  Annual
                     Compliance Statements.

     (a) Not  later  than 15 days  after  each  Distribution  Date,  the  Master
Servicer  shall deliver to the Trustee and the Trust  Administrator  a statement
setting forth the status of the Certificate  Account as of the close of business
on such Distribution Date stating that all distributions  required to be made by
the Master  Servicer  under this  Agreement  have been made (or, if any required
distribution has not been made by the Master Servicer, specifying the nature and
status  thereof)  and showing,  for the period  covered by such  statement,  the
aggregate  amount of deposits  into and  withdrawals  from such account for each
category of deposit and  withdrawal  specified in Sections  3.01 and 3.02.  Such
statement may be in the form of the then current FNMA monthly  accounting report
for its Guaranteed Mortgage  Pass-Through Program with appropriate additions and
changes, and shall also include information as to the aggregate unpaid principal
balance of all of the Mortgage  Loans as of the close of business as of the last
day of the calendar month immediately  preceding such Distribution  Date. Copies
of  such  statement  shall  be  provided  by  the  Trust  Administrator  to  any
Certificateholder upon written request, provided such statement is delivered, or
caused to be delivered, by the Master Servicer to the Trust Administrator.

     (b) The  Master  Servicer  shall  deliver  to the  Trustee  and  the  Trust
Administrator  on or before  April 30 of each year, a  certificate  signed by an
officer of the Master  Servicer,  certifying  that (i) such officer has reviewed
the  activities of the Master  Servicer  during the  preceding  calendar year or
portion thereof and its performance under this agreement and (ii) to the best of
such  officer's  knowledge,  based  on such  review,  the  Master  Servicer  has
performed and fulfilled its duties,  responsibilities and obligations under this
agreement in all material respects throughout such year, or, if there has been a
default in the fulfillment of any such duties,  responsibilities or obligations,
specifying  each such  default  known to such  officer and the nature and status
thereof,  and, (iii) (A) the Master Servicer has received from each Servicer any
financial statements,  officer's certificates,  accountant's statements or other
information  required  to be  provided  to the Master  Servicer  pursuant to the
related  Servicing  Agreement and (B) to the best of such  officer's  knowledge,
based on a review of the  information  provided  to the Master  Servicer by each
Servicer as  described  in (iii)(A)  above,  each  Servicer  has  performed  and
fulfilled  its  duties,  responsibilities  and  obligations  under  the  related
Servicing  Agreement in all material respects throughout such year, or, if there
has been a default in the  fulfillment of any such duties,  responsibilities  or
obligations,  specifying  each such default known to such officer and the nature
and status thereof.  Copies of such officers'  certificate  shall be provided by
the Trust Administrator to any  Certificateholder  upon written request provided
such certificate is delivered, or caused to be delivered, by the Master Servicer
to the Trust Administrator.

Section 3.06.       Title, Management and Disposition of Any REO Mortgage Loan.

     The  Master   Servicer   shall  ensure  that  each  REO  Mortgage  Loan  is
administered  by the  related  Servicer  at all  times so that it  qualifies  as
"foreclosure  property" under the REMIC Provisions and that it does not earn any
"net income from  foreclosure  property" which is subject to tax under the REMIC
Provisions.  In the  event  that a  Servicer  is unable  to  dispose  of any REO
Mortgage Loan within the period  mandated by each of the  Servicing  Agreements,
the Master Servicer shall monitor such Servicer to verify that such REO Mortgage
Loan is auctioned to the highest  bidder within the period so specified.  In the
event of any such sale of REO Mortgage Loan, the Trust  Administrator  shall, at
the  written  request  of the Master  Servicer  and upon  being  supported  with
appropriate  forms  therefor,  within five  Business  Days of the deposit by the
Master  Servicer of the  proceeds of such sale or auction  into the  Certificate
Account,  release or cause to be released to the entity identified by the Master
Servicer the related Owner  Mortgage  Loan File and Servicer  Mortgage Loan File
and shall execute and deliver such  instruments  of transfer or  assignment,  in
each  case  without  recourse,  as shall  be  necessary  to vest in the  auction
purchaser title to the REO Mortgage Loan and the Trust  Administrator shall have
no  further  responsibility  with  regard to such  Owner  Mortgage  Loan File or
Servicer  Mortgage  Loan  File.  Neither  the Trust  Administrator,  the  Master
Servicer nor any Servicer,  acting on behalf of the Trust Estate,  shall provide
financing from the Trust Estate to any purchaser of an REO Mortgage Loan.

Section 3.07.       Amendments to Servicing Agreements,
                    Modification of Standard Provisions.

     (a)  Subject  to the prior  written  consent of the  Trustee  and the Trust
Administrator pursuant to Section 3.07(b), the Master Servicer from time to time
may, to the extent permitted by the applicable  Servicing  Agreement,  make such
modifications and amendments to such Servicing  Agreement as the Master Servicer
deems necessary or appropriate to confirm or carry out more fully the intent and
purpose  of such  Servicing  Agreement  and  the  duties,  responsibilities  and
obligations to be performed by the Servicer  thereunder.  Such modifications may
only be made if they are consistent with the REMIC  Provisions,  as evidenced by
an Opinion of Counsel.  Prior to the issuance of any  modification or amendment,
the Master  Servicer  shall  deliver to the Trustee and the Trust  Administrator
such  Opinion of Counsel  and an  Officer's  Certificate  setting  forth (i) the
provision that is to be modified or amended,  (ii) the modification or amendment
that the Master  Servicer  desires to issue and (iii) the reason or reasons  for
such proposed amendment or modification.

     (b) The Trustee and the Trust  Administrator shall consent to any amendment
or supplement to a Servicing  Agreement proposed by the Master Servicer pursuant
to Section 3.07(a), which consent and amendment shall not require the consent of
any  Certificateholder  if it is (i) for the  purpose of curing  any  mistake or
ambiguity or to further  effect or protect the rights of the  Certificateholders
or (ii) for any other  purpose,  provided such  amendment or supplement for such
other   purpose   cannot    reasonably   be   expected   to   adversely   affect
Certificateholders.  The lack of reasonable  expectation of an adverse effect on
Certificateholders  may be  established  through the delivery to the Trustee and
the Trust  Administrator  of (i) an Opinion  of  Counsel to such  effect or (ii)
written  notification  from each Rating Agency to the effect that such amendment
or  supplement  will not result in reduction of the current  rating  assigned by
that Rating  Agency to the  Certificates.  Notwithstanding  the two  immediately
preceding  sentences,  either the Trustee or the Trust Administrator may, in its
discretion, decline to enter into or consent to any such supplement or amendment
if its own rights, duties or immunities shall be adversely affected.

     (c)(i)  Notwithstanding  anything to the contrary in this Section 3.07, the
Master   Servicer   from  time  to  time  may,   without   the  consent  of  any
Certificateholder,  the  Trustee  or the  Trust  Administrator,  enter  into  an
amendment (A) to an Other Servicing Agreement for the purpose of (i) eliminating
or reducing  Month End Interest and (ii)  providing  for the  remittance of Full
Unscheduled Principal Receipts by the applicable Servicer to the Master Servicer
not later than the 24th day of each month (or if such day is not a Business Day,
on the previous Business Day) or (B) to the Norwest Servicing  Agreement for the
purpose of changing the applicable Remittance Date to the 18th day of each month
(or if such day is not a Business Day, on the previous Business Day).

     (ii) The Master  Servicer  may  direct  Norwest  Mortgage  to enter into an
amendment  to the Norwest  Servicing  Agreement  for the  purposes  described in
Sections 3.07(c)(i)(B) and 10.01(b)(iii).

Section 3.08.       Oversight of Servicing.

     The Master Servicer shall  supervise,  monitor and oversee the servicing of
the Mortgage Loans by each Servicer and the  performance by each Servicer of all
services,  duties,  responsibilities  and obligations that are to be observed or
performed  by  the  Servicer  under  its  respective  Servicing  Agreement.   In
performing its obligations hereunder,  the Master Servicer shall act in a manner
consistent with Accepted Master Servicing Practices and with the Trustee's,  the
Trust  Administrator's  and  the  Certificateholders'  reliance  on  the  Master
Servicer,  and in a manner  consistent  with the  terms  and  provisions  of any
insurance  policy  required  to be  maintained  by the  Master  Servicer  or any
Servicer  pursuant to this  Agreement  or any  Servicing  Agreement.  The Master
Servicer  acknowledges  that prior to taking certain actions required to service
the  Mortgage  Loans,  each  Servicing  Agreement  provides  that  the  Servicer
thereunder must notify,  consult with, obtain the consent of or otherwise follow
the  instructions  of the Master  Servicer.  The Master  Servicer  is also given
authority  to waive  compliance  by a Servicer  with certain  provisions  of its
Servicing Agreement.  In each such instance,  the Master Servicer shall promptly
instruct such Servicer or otherwise  respond to such Servicer's  request.  In no
event will the Master Servicer  instruct such Servicer to take any action,  give
any consent to action by such Servicer or waive compliance by such Servicer with
any provision of such Servicer's  Servicing Agreement if any resulting action or
failure  to act  would be  inconsistent  with  the  requirements  of the  Rating
Agencies that rated the  Certificates  or would otherwise have an adverse effect
on the Certificateholders.  Any such action or failure to act shall be deemed to
have an adverse  effect on the  Certificateholders  if such action or failure to
act either results in (i) the  downgrading of the rating  assigned by any Rating
Agency  to the  Certificates,  (ii)  the  loss by the  Upper-Tier  REMIC  or the
Lower-Tier  REMIC of REMIC  status for federal  income tax purposes or (iii) the
imposition of any Prohibited  Transaction Tax or any federal taxes on either the
Upper-Tier REMIC, the Lower-Tier REMIC or the Trust Estate.  The Master Servicer
shall have full power and  authority in its sole  discretion  to take any action
with  respect to the Trust  Estate as may be necessary or advisable to avoid the
circumstances  specified  including  clause  (ii)  or  (iii)  of  the  preceding
sentence.

     For the purposes of determining whether any modification of a Mortgage Loan
shall be  permitted  by the Trust  Administrator  or the Master  Servicer,  such
modification  shall be construed as a substitution of the modified Mortgage Loan
for the Mortgage Loan originally  deposited in the Trust Estate if it would be a
"significant  modification"  within the  meaning of Section  1.860G-2(b)  of the
regulations of the U.S.  Department of the Treasury.  No  modification  shall be
approved  unless (i) the modified  Mortgage  Loan would  qualify as a Substitute
Mortgage Loan under Section 2.02 and (ii) with respect to any modification  that
occurs more than three  months after the Closing Date and is not the result of a
default or a reasonably  foreseeable  default under the Mortgage Loan,  there is
delivered  to the Trust  Administrator  an Opinion of Counsel (at the expense of
the  party  seeking  to  modify  the  Mortgage  Loan) to the  effect  that  such
modification  would not be treated as giving rise to a new debt  instrument  for
federal income tax purposes.

     During the term of this Agreement,  the Master Servicer shall consult fully
with each  Servicer as may be  necessary  from time to time to perform and carry
out  the  Master  Servicer's   obligations   hereunder  and  otherwise  exercise
reasonable  efforts to  encourage  such  Servicer  to perform  and  observe  the
covenants,  obligations  and  conditions to be performed or observed by it under
its Servicing Agreement.

     The  relationship  of the  Master  Servicer  to the  Trustee  and the Trust
Administrator  under this  Agreement is intended by the parties to be that of an
independent contractor and not that of a joint venturer, partner or agent.

     The Master  Servicer  shall  administer  the Trust  Estate on behalf of the
Trustee  and shall have full power and  authority,  acting  alone or (subject to
Section  6.06) through one or more  subcontractors,  to do any and all things in
connection  with such  administration  which it may deem necessary or desirable.
Upon the execution and delivery of this Agreement,  and from time to time as may
be required  thereafter,  the Trust Administrator on behalf of the Trustee shall
furnish the Master  Servicer or its  subcontractors  with any powers of attorney
and such other documents as may be necessary or appropriate to enable the Master
Servicer to carry out its administrative duties hereunder.

     The Seller shall be entitled,  at its option,  to repurchase  any defaulted
Mortgage Loan or any Mortgage Loan as to which default is reasonably foreseeable
from the Trust Estate if, in the Seller's judgment, the default is not likely to
be cured by the Mortgagor;  provided,  however,  that the Cut-Off Date Principal
Balances of the Mortgage Loans repurchased  pursuant to this provision shall not
exceed 2.5% of the Cut-Off  Date  Aggregate  Principal  Balance of the  Mortgage
Loans. The purchase price for any such Mortgage Loan shall be 100% of the unpaid
principal  balance of such  Mortgage Loan plus accrued  interest  thereon at the
Mortgage  Interest  Rate,  less any Fixed Retained Yield for such Mortgage Loan,
through  the last day of the month in which  such  repurchase  occurs.  Upon the
receipt of such purchase  price,  the Master Servicer shall provide to the Trust
Administrator  the  certification   required  by  Section  3.04  and  the  Trust
Administrator  and the Custodian,  if any, shall promptly  release to the Seller
the Owner Mortgage Loan File relating to the Mortgage Loan being repurchased.

     In the event  that (i) the  Master  Servicer  determines  at any time that,
notwithstanding the representations and warranties set forth in Section 2.03(b),
any Mortgage  Loan is not a "qualified  mortgage"  within the meaning of Section
860G of the  Code  and (ii)  the  Master  Servicer  is  unable  to  enforce  the
obligation of the Seller to purchase such Mortgage Loan pursuant to Section 2.02
within two months of such  determination,  the Master  Servicer shall cause such
Mortgage  Loan to be auctioned  to the highest  bidder and sold out of the Trust
Estate no later than the date 90 days after such determination.  In the event of
any such sale of a Mortgage Loan, the Trust Administrator  shall, at the written
request of the Master Servicer and upon being supported with  appropriate  forms
therefor, within five Business Days of the deposit by the Master Servicer of the
proceeds of such auction into the  Certificate  Account,  release or cause to be
released to the entity  identified  by the Master  Servicer  the  related  Owner
Mortgage Loan File and Servicer Mortgage Loan File and shall execute and deliver
such instruments of transfer or assignment,  in each case without  recourse,  as
shall be necessary to vest in the auction  purchaser  title to the Mortgage Loan
and the Trust Administrator shall have no further  responsibility with regard to
such Owner Mortgage Loan File or Servicer Mortgage Loan File.  Neither the Trust
Administrator,  the Master  Servicer nor any  Servicer,  acting on behalf of the
Trust  Administrator,  shall  provide  financing  from the  Trust  Estate to any
purchaser of a Mortgage Loan.

     The Master Servicer, on behalf of the Trust Administrator,  shall, pursuant
to the Servicing  Agreements,  object to the foreclosure  upon, or other related
conversion of the ownership of, any Mortgaged  Property by the related  Servicer
if (i) the Master Servicer believes such Mortgaged  Property may be contaminated
with or  affected  by  hazardous  wastes or  hazardous  substances  or (ii) such
Servicer does not agree to administer such Mortgaged Property,  once the related
Mortgage  Loan becomes an REO Mortgage  Loan, in a manner which would not result
in a federal tax being imposed upon the Trust Estate or the Upper-Tier  REMIC or
Lower-Tier REMIC.

     The Master  Servicer may enter into a special  servicing  agreement with an
unaffiliated  holder of 100%  Percentage  Interest  of a Class B  Subclass  or a
holder  of  a  class  of  securities  representing  interests  in  the  Class  B
Certificates and/or other subordinated mortgage pass-through certificates,  such
agreement to be substantially in the form of Exhibit M hereto or subject to each
Rating Agency's  acknowledgment  that the ratings of the  Certificates in effect
immediately prior to the entering into of such agreement would not be qualified,
downgraded  or  withdrawn  and the  Certificates  would  not be placed on credit
review status (except for possible upgrading) as a result of such agreement. Any
such  agreement  may contain  provisions  whereby  such holder may  instruct the
Master  Servicer to instruct a Servicer to the extent provided in the applicable
Servicing Agreement to commence or delay foreclosure proceedings with respect to
delinquent Mortgage Loans and will contain provisions for the deposit of cash by
the holder that would be available for  distribution  to  Certificateholders  if
Liquidation Proceeds are less than they otherwise may have been had the Servicer
acted in accordance with its normal procedures.

Section 3.09.       Termination and Substitution of Servicing Agreements.

     Upon the  occurrence  of any event for which a Servicer  may be  terminated
pursuant to its Servicing Agreement,  the Master Servicer shall promptly deliver
to the Seller, the Trust Administrator and the Trustee an Officer's  Certificate
certifying  that an event has  occurred  which may justify  termination  of such
Servicing  Agreement,  describing the  circumstances  surrounding such event and
recommending  what action  should be taken by the Trustee  with  respect to such
Servicer.  If the Master Servicer  recommends  that such Servicing  Agreement be
terminated,  the Master Servicer's  certification  must state that the breach is
material  and not merely  technical  in nature.  Upon  written  direction of the
Master  Servicer,  based upon such  certification,  the Trustee  shall  promptly
terminate such Servicing Agreement.  Notwithstanding the foregoing, in the event
that (i) Norwest  Mortgage fails to make any advance,  as a consequence of which
the Trust Administrator is obligated to make an advance pursuant to Section 3.03
and (ii) the Trust Administrator provides Norwest Mortgage written notice of the
failure to make such advance and such failure shall  continue  unremedied  for a
period of 15 days after  receipt of such  notice,  the Trust  Administrator  may
recommend  to the Trustee the  termination  of the Norwest  Servicing  Agreement
without the  recommendation of the Master Servicer and upon such  recommendation
the Trustee shall terminate the Norwest Servicing Agreement. The Master Servicer
shall indemnify the Trustee and the Trust  Administrator  and hold each harmless
from and against any and all claims, liabilities, costs and expenses (including,
without  limitation,  reasonable  attorneys'  fees)  arising out of, or assessed
against the Trustee or the Trust Administrator in connection with termination of
such Servicing  Agreement at the direction of the Master Servicer.  In addition,
the Trust  Administrator  shall  indemnify the Trustee and hold it harmless from
and against  any and all claims,  liabilities,  costs and  expenses  (including,
without  limitation,  reasonable  attorneys'  fees)  arising out of, or assessed
against the Trustee in connection with the termination of the Norwest  Servicing
Agreement at the direction of the Trust Administrator. If the Trustee terminates
such  Servicing  Agreement,  the Trustee may enter into a  substitute  Servicing
Agreement with the Master Servicer or, at the Master Servicer's nomination, with
another  mortgage  loan service  company  acceptable  to the Trustee,  the Trust
Administrator, the Master Servicer and each Rating Agency under which the Master
Servicer or such substitute servicer, as the case may be, shall assume, satisfy,
perform and carry out all liabilities,  duties, responsibilities and obligations
that are to be, or otherwise were to have been, satisfied, performed and carried
out by such Servicer under such terminated Servicing Agreement.  Until such time
as the Trustee enters into a substitute  servicing agreement with respect to the
Mortgage Loans previously  serviced by such Servicer,  the Master Servicer shall
assume,  satisfy,  perform and carry out all obligations which otherwise were to
have been  satisfied,  performed  and  carried  out by such  Servicer  under its
terminated Servicing  Agreement.  However, in no event shall the Master Servicer
be deemed to have assumed the  obligations of a Servicer to advance  payments of
principal  and  interest on a delinquent  Mortgage  Loan in excess of the Master
Servicer's  independent  Periodic Advance  obligation under Section 3.03 of this
Agreement.  As compensation for the Master Servicer of any servicing obligations
fulfilled  or assumed  by the Master  Servicer,  the  Master  Servicer  shall be
entitled  to any  servicing  compensation  to which a  Servicer  would have been
entitled if the Servicing Agreement with such Servicer had not been terminated.

Section 3.10.       1934 Act Reports.

     The  Master  Servicer  shall,  on behalf of the  Seller,  make all  filings
required to be made by the Seller with respect to the Class A Certificates,  the
Class M Certificates  and the Class B-1 and Class B-2  Certificates  pursuant to
the Securities Exchange Act of 1934, as amended.


<PAGE>


                                   ARTICLE IV

                    DISTRIBUTIONS IN RESPECT OF CERTIFICATES;
                         PAYMENTS TO CERTIFICATEHOLDERS;
                             STATEMENTS AND REPORTS

Section 4.01.       Distributions.

     (a)(i) On each  Distribution  Date,  the Pool  Distribution  Amount will be
applied in the following amounts,  to the extent the Pool Distribution Amount is
sufficient therefor, in the manner and in the order of priority as follows:

     first, to the Subclasses of Class A  Certificates,  pro rata based on their
respective Class A Subclass Interest Accrual Amounts,  in an aggregate amount up
to the sum of the Class A Subclass Interest Accrual Amounts with respect to such
Distribution Date;  provided,  that prior to the Accretion  Termination Date, an
amount equal to the amount that would otherwise be  distributable  in respect of
interest to the Class A-7 Certificates  will instead be distributed in reduction
of the  Class A  Subclass  Principal  Balances  of the  Class  A-6 and Class A-7
Certificates in accordance with Section 4.01(b);

     second, to the Subclasses of Class A Certificates,  pro rata based on their
respective unpaid Class A Subclass Interest Shortfall  Amounts,  in an aggregate
amount  up to  the  sum of the  previously  unpaid  Class  A  Subclass  Interest
Shortfall Amounts;  provided,  that prior to the Accretion  Termination Date, an
amount equal to the amount that would otherwise be  distributable  in respect of
interest shortfalls to the Class A-7 Certificates will instead be distributed in
reduction of the Class A Subclass  Principal Balances of the Class A-6 and Class
A-7 Certificates in accordance with Section 4.01(b);

     third, concurrently, to the Class A Certificates (other than the Class A-PO
Certificates)  and the  Class  A-PO  Certificates,  pro  rata,  based  on  their
respective  Class A Non-PO  Optimal  Principal  Amount  and Class  A-PO  Optimal
Principal Amount, (A) to the Subclasses of Class A Certificates  (other than the
Class  A-PO  Certificates),  in an  aggregate  amount  up to the  Class A Non-PO
Optimal  Principal  Amount,   such  distribution  to  be  allocated  among  such
Subclasses in accordance with Section 4.01(b) or Section 4.01(c), as applicable,
and (B) to the Class A-PO Certificates in an amount up to the Class A-PO Optimal
Principal Amount;

     fourth,  to the Class A-PO  Certificates  in an amount up to the Class A-PO
Deferred  Amount from amounts  otherwise  distributable  (without regard to this
Paragraph  fourth)  first to the Class B-5  Certificates  pursuant to  Paragraph
twenty-second, below, second to the Class B-4 Certificates pursuant to Paragraph
nineteenth,  below,  third to the Class B-3  Certificates  pursuant to Paragraph
sixteenth,  below,  fourth to the Class B-2  Certificates  pursuant to Paragraph
thirteenth,  below,  fifth to the Class B-1  Certificates  pursuant to Paragraph
tenth below, and sixth to the Class M Certificates pursuant to Paragraph seventh
below;

     fifth,  to the Class M Certificates in an amount up to the Class M Interest
Accrual Amount with respect to such Distribution Date;

     sixth,  to the Class M  Certificates  in an amount up to the Class M Unpaid
Interest Shortfall;

     seventh, to the Class M Certificates in an amount up to the Class M Optimal
Principal Amount; provided,  however, that the amount distributable to the Class
M Certificates pursuant to this Paragraph seventh will be reduced by the amount,
if any, that would have been distributable to the Class M Certificates hereunder
used to pay the Class A-PO  Deferred  Amount as  provided  in  Paragraph  fourth
above;

     eighth,  to the  Class  B-1  Certificates  in an  amount  up to the Class B
Subclass  Interest Accrual Amount for the Class B-1 Certificates with respect to
such Distribution Date;

     ninth,  to the  Class  B-1  Certificates  in an  amount up to the Class B-1
Unpaid Interest Shortfall;

     tenth,  to the  Class  B-1  Certificates  in an  amount up to the Class B-1
Optimal Principal Amount;  provided,  however,  that the amount distributable to
the Class B-1  Certificates  pursuant to this Paragraph tenth will be reduced by
the  amount,  if any,  that  would  have  been  distributable  to the  Class B-1
Certificates hereunder used to pay the Class A-PO Deferred Amount as provided in
Paragraph fourth above;

     eleventh,  to the  Class  B-2  Certificates  in an amount up to the Class B
Subclass  Interest Accrual Amount for the Class B-2 Certificates with respect to
such Distribution Date;

     twelfth,  to the  Class B-2  Certificates  in an amount up to the Class B-2
Unpaid Interest Shortfall;

     thirteenth,  to the Class B-2 Certificates in an amount up to the Class B-2
Optimal Principal Amount;  provided,  however,  that the amount distributable to
the Class B-2 Certificates pursuant to this Paragraph thirteenth will be reduced
by the  amount,  if any,  that  would have been  distributable  to the Class B-2
Certificates hereunder used to pay the Class A-PO Deferred Amount as provided in
Paragraph fourth above;

     fourteenth,  to the Class B-3  Certificates  in an amount up to the Class B
Subclass  Interest Accrual Amount for the Class B-3 Certificates with respect to
such Distribution Date;

     fifteenth,  to the Class B-3  Certificates in an amount up to the Class B-3
Unpaid Interest Shortfall;

     sixteenth,  to the Class B-3  Certificates in an amount up to the Class B-3
Optimal Principal Amount;  provided,  however,  that the amount distributable to
the Class B-3 Certificates  pursuant to this Paragraph sixteenth will be reduced
by the  amount,  if any,  that  would have been  distributable  to the Class B-3
Certificates hereunder used to pay the Class A-PO Deferred Amount as provided in
Paragraph fourth above;

     seventeenth,  to the Class B-4  Certificates in an amount up to the Class B
Subclass  Interest Accrual Amount for the Class B-4 Certificates with respect to
such Distribution Date;

     eighteenth,  to the Class B-4 Certificates in an amount up to the Class B-4
Unpaid Interest Shortfall;

     nineteenth,  to the Class B-4 Certificates in an amount up to the Class B-4
Optimal Principal Amount;  provided,  however,  that the amount distributable to
the Class B-4 Certificates pursuant to this Paragraph nineteenth will be reduced
by the  amount,  if any,  that  would have been  distributable  to the Class B-4
Certificates hereunder used to pay the Class A-PO Deferred Amount as provided in
Paragraph fourth above; and

     twentieth,  to the  Class B-5  Certificates  in an amount up to the Class B
Subclass  Interest Accrual Amount for the Class B-5 Certificates with respect to
such Distribution Date;

     twenty-first,  to the Class B-5  Certificates  in an amount up to the Class
B-5 Unpaid Interest Shortfall;

     twenty-second,  to the Class B-5  Certificates in an amount up to the Class
B-5 Optimal Principal Amount;  provided,  however, that the amount distributable
to the Class B-5 Certificates  pursuant to this Paragraph  twenty-second will be
reduced by the amount,  if any, that would have been  distributable to the Class
B-5  Certificates  hereunder  used to pay the  Class  A-PO  Deferred  Amount  as
provided in Paragraph fourth above; and

     twenty-third,  to the  Holder  of the Class A-R  Certificate,  any  amounts
remaining in the Upper-Tier  Certificate Account, and to the Holder of the Class
A-LR Certificate, any amounts remaining in the Payment Account.

     Notwithstanding  the  foregoing,  after the  Principal  Balance or notional
amount of any Subclass (other than the Class A-R or Class A-LR Certificates) has
been reduced to zero, such Subclass will be entitled to no further distributions
of principal or interest  (including,  without  limitation,  any Unpaid Interest
Shortfalls).

     In  addition,  Net  Foreclosure  Profits,  if  any,  with  respect  to such
Distribution  Date minus any portion thereof  payable to a Servicer  pursuant to
Section  3.02(ix)  hereof shall be  distributed  to the Holder of the Class A-LR
Certificate.

     With  respect  to any  Distribution  Date,  the  amount  of  the  Principal
Adjustment,  if any,  attributable to any Class B Subclass will be allocated pro
rata based on principal  balance among the Class A Certificates  (other than the
Class A-5 and Class A-PO Certificates), the Class M Certificates and any Class B
Subclass  with a lower  numerical  designation  and the amount of the  Principal
Adjustment,  if any,  attributable to the Class M Certificates will be allocated
to the  Subclasses of Class A  Certificates  (other than the Class A-5 and Class
A-PO Certificates) pro rata based on the Class A Subclass Principal Balances.

     (ii)  Distributions on the  Uncertificated  Lower-Tier  Interests.  On each
Distribution  Date,  each  Uncertificated   Lower-Tier  Interest  shall  receive
distributions  in  respect  of  principal  in an amount  equal to the  amount of
principal  distributed  to its  respective  Corresponding  Upper-Tier  Class  or
Classes as provided  herein.  On each  Distribution  Date,  each  Uncertificated
Lower-Tier  Interest  (other than the Class A-L1 Interest,  Class A-L2 Interest,
Class A-L3  Interest and Class A-L4  Interest)  shall receive  distributions  in
respect of interest  (or, in the case of the Class A-L6  Interest,  shall accrue
interest) in an amount equal to the (i) Class A Subclass Interest Accrual Amount
and Class A Subclass Unpaid Interest  Shortfall,  (ii) Class M Interest  Accrual
Amount and Class M Unpaid Interest  Shortfall or (iii) Class B Subclass Interest
Accrual Amount and Class B Subclass Unpaid Interest  Shortfall,  as the case may
be, in respect of its Corresponding  Upper-Tier Class or Classes in each case to
the extent actually  distributed (or, in the case of the Class A-7 Certificates,
accrued) thereon. The Class A-L1 Interest shall receive distributions in respect
of  interest  in an  amount  equal  to the sum of (i)  the  amount  of  interest
distributed  on the  Class  A-1  Certificates  and (ii) an  amount  equal to the
product  of the  Class  A-L1  Interest  Fraction  and  the  amount  of  interest
distributed on the Class A-5 Certificate.  The Class A-L2 Interest shall receive
distributions  in respect of interest  in an amount  equal to the sum of (i) the
amount of interest  distributed on the Class A-2 Certificates and (ii) an amount
equal to the  product  of the Class  A-L2  Interest  Fraction  and the amount of
interest distributed on the Class A-5 Certificate. The Class A-L3 Interest shall
receive  distributions  in respect of interest in an amount  equal to the sum of
(i) the amount of interest distributed in the Class A-3 Certificates and (ii) an
amount equal to the product of the Class A-L3  Interest  Fraction and the amount
of interest  distributed on the Class A-5  Certificate.  The Class A-L4 Interest
shall receive distributions in respect of interest in an amount equal to the sum
of (i) the amount of interest  distributed  on the Class A-L4  Certificates  and
(ii) an amount equal to the product of the Class A-L4 Interest  Fraction and the
amount of  interest  distributed  on the Class A-5  Certificates.  Such  amounts
distributed to the Uncertificated  Lower-Tier  Interests in respect of principal
and  interest  with  respect to any  Distribution  Date are  referred  to herein
collectively as the "Lower-Tier Distribution Amount."

     As of any date,  the principal  balance of each  Uncertificated  Lower-Tier
Interest  equals  the Class A  Subclass  Principal  Balance,  Class M  Principal
Balance  or Class B  Subclass  Principal  Balance,  as the  case may be,  of the
respective  Corresponding  Upper-Tier  Class or Classes.  The initial  principal
balance of each  Uncertificated  Lower-Tier Interest equals the Original Class A
Subclass Principal Balance,  Original Class M Principal Balance,  Original Class
B-1 Principal Balance,  Original Class B-2 Principal Balance, Original Class B-3
Principal  Balance,  Original Class B-4 Principal  Balance or Original Class B-5
Principal Balance as the case may be, of the respective Corresponding Upper-Tier
Class or Classes.

     The  pass-through  rate  with  respect  to each  Uncertificated  Lower-Tier
Interest  (other than the Class  A-LPO  Interest)  will be 7.25% per annum.  The
Class  A-LPO  Interest  is a  principal-only  interest  and is not  entitled  to
distributions  of  interest.  Any  Non-Supported  Interest  Shortfalls  will  be
allocated  to each  Uncertificated  Lower-Tier  Interest  in the  same  relative
proportions as interest is allocated to such Uncertificated Lower-Tier Interest.

     (b) On each Distribution Date occurring prior to the Accretion  Termination
Date, an amount equal to the Class A-7 Accrual  Distribution Amount, if any, for
such Distribution Date will be allocated in reduction of the principal  balances
of the Class A-6 and Class A-7 Certificates  sequentially,  in that order, until
the Class A Subclass Principal Balance of each such Subclass has been reduced to
zero.

     On each Distribution Date occurring prior to the Cross-Over Date, the Class
A-Non-PO  Principal  Amount will be allocated among and distributed in reduction
of the Class A Subclass  Principal  Balances of the Class A Certificates  (other
than the Class A-5 Certificates) as follows:

     first, to the Class A-8 Certificates up to the Class A-8 Priority Amount;

     second, sequentially,  to the Class A-1, Class A-2, Class A-3 and Class A-4
Certificates up to their respective PAC Principal  Amounts for such Distribution
Date,  until the Class A Subclass  Principal  Balance of each such  Subclass has
been reduced to zero;

     third, sequentially, to the Class A-6 and Class A-7 Certificates, until the
Class A Subclass  Principal  Balance of each such  Subclass  has been reduced to
zero;

     fourth, sequentially, to the Class A-R and Class A-LR Certificates, in that
order,  until the Class A Subclass  Principal  Balance of each such Subclass has
been reduced to zero;

     fifth,  sequentially,  to the Class A-1, Class A-2, Class A-3 and Class A-4
Certificates,  in that order,  without regard to their  respective PAC Principal
Amounts,  until the Class A Subclass Principal Balance of each such Subclass has
been reduced to zero; and

     sixth,  to the  Class  A-8  Certificates,  without  regard to the Class A-8
Priority Amount,  until the Class A Subclass  Principal Balance thereof has been
reduced to zero.


     As used above, the "PAC Principal Amount" for any Distribution Date and for
any Subclass of PAC Certificates means the amount, if any, that would reduce the
Class A Subclass  Principal  Balance of such  Subclass to the  percentage of its
initial Class A Subclass  Principal  Balance shown in the following  tables with
respect to such Distribution Date.

     The following tables set forth for each Distribution Date the planned Class
A  Subclass  Principal  Balance of the PAC  Certificates,  each  expressed  as a
percentage of the initial Class A Subclass Principal Balance.


<PAGE>


<TABLE>
                                    Planned Class A Subclass Principal Balances
                           as Percentages of Initial Class A Subclass Principal Balances

                                              CLASS A-1 CERTIFICATES

<CAPTION>

                           Percentage of                                Percentage of                                Percentage of
                          Initial Class A                              Initial Class A                              Initial Class A
                         Subclass Principal                          Subclass Principal                           Subclass Principal
  Distribution Date            Balance         Distribution Date            Balance         Distribution Date            Balance
  -----------------            -------         -----------------            -------         -----------------            -------

<S>                       <C>                 <C>                      <C>                 <C>                      <C>           
February 1997             98.03807167%        January 1998             70.69298683%        December 1998            33.72063769%
March 1997                95.98616626%        February 1998            67.70643497%        January 1999             29.94424407%
April 1997                93.84499018%        March 1998               64.64099015%        February 1999            26.10684329%
May 1997                  91.61528918%        April 1998               61.49780164%        March 1999               22.21190909%
June 1997                 89.29784810%        May 1998                 58.27805241%        April 1999               18.26839366%
July 1997                 86.89349044%        June 1998                54.98314699%        May 1999                 14.29236965%
August 1997               84.40307803%        July 1998                51.61456247%        June 1999                10.30376089%
September 1997            81.82751060%        August 1998              48.17371650%        July 1999                 6.32118865%
October 1997              79.16772534%        September 1998           44.66211047%        August 1999               2.35158564%
November 1997             76.42469648%        October 1998             41.08149997%        September 1999            0.00000000%
December 1997             73.59943473%        November 1998            37.43361296%
</TABLE>


<TABLE>
                                              CLASS A-2 CERTIFICATES

<CAPTION>

                           Percentage of                                Percentage of                                Percentage of
                          Initial Class A                              Initial Class A                              Initial Class A
                         Subclass Principal                          Subclass Principal                           Subclass Principal
  Distribution Date            Balance         Distribution Date            Balance         Distribution Date            Balance
  -----------------            -------         -----------------            -------         -----------------            -------

Up to and including
<S>                      <C>                  <C>                      <C>                 <C>                      <C>         
August 1999              100.00000000%        April 2000               62.84091584%        December 2000            23.69802478%
September 1999            97.93929645%        May 2000                 57.89197533%        January 2001             18.87666754%
October 1999              92.87604005%        June 2000                52.95915823%        February 2001            14.07103668%
November 1999             87.82927248%        July 2000                48.04241370%        March 2001                9.28108412%
December 1999             82.79894050%        August 2000              43.14169127%        April 2001                4.50676212%
January 2000              77.78499122%        September 2000           38.25694079%        May 2001                  0.00000000%
February 2000             72.78737210%        October 2000             33.38811246%
March 2000                67.80603092%        November 2000            28.53515683%


</TABLE>


<TABLE>
                                              CLASS A-3 CERTIFICATES

                           Percentage of                                Percentage of                                Percentage of
                          Initial Class A                              Initial Class A                              Initial Class A
                         Subclass Principal                          Subclass Principal                           Subclass Principal
  Distribution Date            Balance         Distribution Date            Balance         Distribution Date            Balance
  -----------------            -------         -----------------            -------         -----------------            -------

Up to and including
<S>                     <C>                   <C>                   <C>                    <C>                   <C>              
April 2001              100.00000000%         March 2002            63.02831425%           February 2003         24.98924893%
May 2001                99.80085447%          April 2002            59.48279087%           March 2003            21.89502600%
June 2001               96.05214471%          May 2002              55.94806185%           April 2003            18.87517187%
July 2001               92.31567671%          June 2002             52.42408540%           May 2003              15.92820358%
August 2001             88.59141383%          July 2002             48.91081993%           June 2003             13.05266567%
September 2001          84.87931969%          August 2002           45.40822406%           July 2003             10.24712979%
October 2001            81.17935817%          September 2002        41.91625660%           August 2003           7.51019413%
November 2001           77.49149343%          October 2002          38.43487658%           September 2003        4.84048297%
December 2001           73.81568991%          November 2002         34.96404324%           October 2003          2.23664623%
January 2002            70.15191231%          December 2002         31.52076045%           November 2003         0.00000000%
February 2002           66.58467399%          January 2003          28.15935173%
</TABLE>


<PAGE>


<TABLE>
                                              CLASS A-4 CERTIFICATES

<CAPTION>
                           Percentage of                                Percentage of                                Percentage of
                          Initial Class A                              Initial Class A                              Initial Class A
                         Subclass Principal                          Subclass Principal                           Subclass Principal
  Distribution Date            Balance         Distribution Date            Balance         Distribution Date            Balance
  -----------------            -------         -----------------            -------         -----------------            -------

Up to and including
<S>                      <C>                  <C>                      <C>                 <C>                       <C>           
October 2003             100.00000000%        August 2006              35.61886035%        June 2009                 9.95862744%
November 2003             99.60595449%        September 2006           34.54318886%        July 2009                 9.47278746%
December 2003             96.38209649%        October 2006             33.49115371%        August 2009               8.99878150%
January 2004              93.23892918%        November 2006            32.46229089%        September 2009            8.53652065%
February 2004             90.41847824%        December 2006            31.45614505%        October 2009              8.08560966%
March 2004                87.66742312%        January 2007             30.47550814%        November 2009             7.64581547%
April 2004                84.98431217%        February 2007            29.51661152%        December 2009             7.21690943%
May 2004                  82.36772165%        March 2007               28.57902676%        January 2010              6.79866726%
June 2004                 79.81625525%        April 2007               27.66233341%        February 2010             6.39086895%
July 2004                 77.32854355%        May 2007                 26.76611885%        March 2010                5.99329868%
August 2004               74.90324356%        June 2007                25.88997819%        April 2010                5.60574475%
September 2004            72.53903821%        July 2007                25.03351406%        May 2010                  5.22799950%
October 2004              70.23463589%        August 2007              24.19633655%        June 2010                 4.86074178%
November 2004             67.98876996%        September 2007           23.37806303%        July 2010                 4.50286468%
December 2004             65.80019831%        October 2007             22.57831801%        August 2010               4.15417278%
January 2005              63.66770288%        November 2007            21.79701384%        September 2010            3.81478673%
February 2005             61.78376399%        December 2007            21.03350032%        October 2010              3.48419727%
March 2005                59.94518742%        January 2008             20.28742285%        November 2010             3.16222018%
April 2005                58.15100827%        February 2008            19.55843346%        December 2010             2.84930019%
May 2005                  56.40028073%        March 2008               18.84619072%        January 2011              2.54536801%
June 2005                 54.69207773%        April 2008               18.15035962%        February 2011             2.24994576%
July 2005                 53.02549057%        May 2008                 17.47061141%        March 2011                1.96302218%
August 2005               51.39962856%        June 2008                16.80662356%        April 2011                1.68593709%
September 2005            49.81361873%        July 2008                16.15807958%        May 2011                  1.41751836%
October 2005              48.26660542%        August 2008              15.52466893%        June 2011                 1.15836488%
November 2005             46.75775001%        September 2008           14.90608694%        July 2011                 0.90721954%
December 2005             45.28623058%        October 2008             14.30203468%        August 2011               0.66623696%
January 2006              43.85124158%        November 2008            13.71221883%        September 2011            0.43862370%
February 2006             42.59636458%        December 2008            13.13635163%        October 2011              0.24139881%
March 2006                41.36862732%        January 2009             12.57415076%        November 2011             0.09710162%
April 2006                40.16750076%        February 2009            12.02533919%        December 2011             0.01695771%
May 2006                  38.99246567%        March 2009               11.48964519%        January 2012              0.00000000%
June 2006                 37.84301245%        April 2009               10.96680211%
July 2006                 36.71864097%        May 2009                 10.45654840%
</TABLE>


<PAGE>


     (c) Notwithstanding  the foregoing,  on each Distribution Date occurring on
or subsequent to the Cross-Over Date, the Class A Non-PO Principal  Distribution
Amount shall be distributed among the Subclasses of Class A Certificates  (other
than the Class A-PO  Certificates) pro rata in accordance with their outstanding
Class A Subclass  Principal Balances without regard to either the proportions or
the priorities set forth in Section 4.01(b).

     (d) (i) For  purposes  of  determining  whether the  Subclasses  of Class B
Certificates are eligible to receive  distributions of principal with respect to
any Distribution Date, the following tests shall apply:

               (A) if the Current  Class M Fractional  Interest is less than the
          Original Class M Fractional Interest and the Class M Principal Balance
          is greater than zero,  the Class B-1,  Class B-2, Class B-3, Class B-4
          and  Class  B-5   Certificates   shall  not  be  eligible  to  receive
          distributions of principal; or

               (B) if the Current Class B-1 Fractional Interest is less than the
          Original  Class B-1  Fractional  Interest and the Class B-1  Principal
          Balance is greater than zero,  the Class B-2, Class B-3, Class B-4 and
          Class B-5 Certificates shall not be eligible to receive  distributions
          of principal; or

               (C) if the Current Class B-2 Fractional Interest is less than the
          Original  Class B-2  Fractional  Interest and the Class B-2  Principal
          Balance is greater than zero,  the Class B-3,  Class B-4 and Class B-5
          Certificates  shall  not  be  eligible  to  receive  distributions  of
          principal; or

               (D) if the Current Class B-3 Fractional Interest is less than the
          Original  Class B-3  Fractional  Interest and the Class B-3  Principal
          Balance is greater than zero, the Class B-4 and Class B-5 Certificates
          shall not be eligible to receive distributions of principal; or

               (E) if the Current Class B-4 Fractional Interest is less than the
          Original  Class B-4  Fractional  Interest and the Class B-4  Principal
          Balance is greater than zero, the Class B-5 Certificates  shall not be
          eligible to receive distributions of principal.

     (ii)  Notwithstanding  the  foregoing,  if on  any  Distribution  Date  the
aggregate  distributions  to  Holders  of the Class M  Certificates  and/or  the
Subclasses  of  Class  B  Certificates  entitled  to  receive  distributions  of
principal would reduce the Class M Principal Balance and/or the Class B Subclass
Principal Balances of the Subclasses of Class B Certificates entitled to receive
distributions of principal below zero,  first the Class M Prepayment  Percentage
and/or  the Class B  Subclass  Prepayment  Percentage  of any  affected  Class B
Subclass for such  Distribution  Date beginning with the affected  Subclass with
the lowest numerical  Subclass  designation and then, if necessary,  the Class M
Percentage and/or the Class B Subclass  Percentage of such Subclass of the Class
B  Certificates  for such  Distribution  Date shall be reduced to the respective
percentages  necessary to bring the Class M Principal Balance and/or the Class B
Subclass  Principal  Balance  of such  Class B  Subclass  to zero.  The  Class B
Subclass  Prepayment  Percentages  and the Class B Subclass  Percentages  of the
remaining   Class  B  Subclasses  will  be  recomputed   substituting   for  the
Subordinated   Prepayment   Percentage  and  Subordinated   Percentage  in  such
computations the difference between (A) the Subordinated  Prepayment  Percentage
or  Subordinated  Percentage,  as the  case  may be,  and  (B)  the  percentages
determined in  accordance  with the  preceding  sentence  necessary to bring the
Class M Principal Balance and/or the Class B Subclass  Principal Balances of the
affected  Class B Subclasses  to zero;  provided,  however,  that if the Class B
Subclass  Principal  Balances of all the Class B Subclasses  eligible to receive
distributions of principal shall be reduced to zero on such  Distribution  Date,
the Class B Subclass  Prepayment  Percentage and the Class B Subclass Percentage
of the Class B Subclass with the lowest  numerical  Subclass  designation  which
would  otherwise  be  ineligible  to  receive   distributions  of  principal  in
accordance  with this  Section  shall equal the  remainder  of the  Subordinated
Prepayment  Percentage for such  Distribution  Date minus the sum of the Class M
Prepayment  Percentage  and the Class B Subclass  Prepayment  Percentages of the
Class B Subclasses having lower numerical Subclass designations, if any, and the
remainder of the Subordinated  Percentage for such  Distribution  Date minus the
sum of the Class M Percentage and the Class B Subclass  Percentages of the Class
B Subclasses having lower numerical Subclass designations, if any, respectively.
Any entitlement of any Class B Subclass to principal payments solely pursuant to
this clause (ii) shall not cause such Subclass to be regarded as being  eligible
to receive principal distributions for the purpose of applying the definition of
its Class B Subclass Percentage or Class B Subclass Prepayment Percentage.

     (e) The Trust  Administrator  shall  establish and maintain the  Upper-Tier
Certificate  Account,  which shall be a separate  trust  account and an Eligible
Account.  On each Distribution  Date other than the Final  Distribution Date (if
such Final  Distribution  Date is in connection with a purchase of the assets of
the Trust Estate by the Seller), the Paying Agent shall, on behalf of the Master
Servicer,  from funds available on deposit in the Payment Account,  (i) deposit,
in  immediately  available  funds,  by wire  transfer  or  otherwise,  into  the
Upper-Tier  Certificate  Account  the  Lower-Tier  Distribution  Amount and (ii)
distribute  to the Class  A-LR  Certificateholder  (other  than as  provided  in
Section 9.01 respecting the final distribution to  Certificateholders)  by check
mailed to such Holder at the address of such Holder appearing in the Certificate
Register,  the Class A Subclass  Distribution  Amount with  respect to the Class
A-LR  Certificate  and  all  other  amounts  distributable  to  the  Class  A-LR
Certificate.  The Trust  Administrator  may clear and terminate  the  Upper-Tier
Certificate Account pursuant to Section 9.01.

     (f) On each  Distribution  Date other than the Final  Distribution Date (if
such Final  Distribution  Date is in connection with a purchase of the assets of
the Trust Estate by the Seller), the Paying Agent shall, on behalf of the Master
Servicer,  from funds remitted to it by the Master Servicer,  distribute to each
Certificateholder of record (other than the Class A-LR Certificateholder) on the
preceding  Record Date (other than as provided in Section  9.01  respecting  the
final  distribution  to  Certificateholders  or in the  last  paragraph  of this
Section  4.01(f)  respecting the final  distribution  in respect of any Class or
Subclass) either in immediately  available funds by wire transfer to the account
of  such  Certificateholder  at  a  bank  or  other  entity  having  appropriate
facilities  therefor,  if such  Certificateholder  holds  Certificates  having a
Denomination  at least  equal to that  specified  in Section  11.25,  and has so
notified the Master Servicer or, if applicable,  the Paying Agent at least seven
Business  Days  prior  to  the  Distribution  Date  or,  if  such  Holder  holds
Certificates  having,  in the aggregate,  a Denomination less than the requisite
minimum  Denomination  or if such Holder holds the Class A-R  Certificate or has
not so notified the Paying Agent,  by check mailed to such Holder at the address
of such Holder appearing in the Certificate Register, such Holder's share (based
on, with respect to each Class or  Subclass,  the  aggregate  of the  Percentage
Interests  represented by  Certificates  of the applicable  Class or Subclass of
Certificates  held by such  Holder of the Class A Subclass  Distribution  Amount
with respect to each Subclass of Class A Certificates,  the Class M Distribution
Amount  with  respect  to the  Class M  Certificates  and the  Class B  Subclass
Distribution Amount with respect to each such Subclass of Class B Certificates.

     In the event that, on any Distribution Date prior to the Final Distribution
Date,  the  Class A  Subclass  Principal  Balance  of any  Subclass  of  Class A
Certificates  (other than the Class A-5,  Class A-R or A-LR  Certificates),  the
Class M Principal  Balance of the Class M  Certificates  or the Class B Subclass
Principal  Balance of any Subclass of Class B  Certificates  would be reduced to
zero or in the case of the Class A-5 Certificate,  the Class A-5 Notional Amount
would be reduced to zero,  the Master  Servicer  shall,  as soon as  practicable
after the Determination  Date relating to such Distribution  Date, send a notice
to the Trust  Administrator.  The Trust Administrator will then send a notice to
each  Certificateholder of such Class or Subclass with a copy to the Certificate
Registrar,  specifying that the final distribution with respect to such Class or
Subclass will be made on such  Distribution  Date only upon the presentation and
surrender of such  Certificateholder's  Certificates  at the office or agency of
the Trust Administrator therein specified;  provided,  however, that the failure
to give such notice will not entitle a Certificateholder  to any interest beyond
the interest payable with respect to such  Distribution  Date in accordance with
Section 4.01(a)(i).

     (g) The  Paying  Agent (or if no Paying  Agent is  appointed  by the Master
Servicer,  the Master  Servicer)  shall  withhold or cause to be  withheld  such
amounts as may be required  by the Code  (giving  full effect to any  exemptions
from  withholding  and  related  certifications  required  to  be  furnished  by
Certificateholders  and any reductions to withholding by virtue of any bilateral
tax  treaties  and any  applicable  certification  required to be  furnished  by
Certificateholders  with  respect  thereto)  from  distributions  to be  made to
Non-U.S.  Persons.  Amounts  withheld  pursuant to this Section 4.01(g) shall be
treated as having  been  distributed  to the related  Certificateholder  for all
purposes of this  Agreement.  For the  purposes of this  paragraph,  a "Non-U.S.
Person" is an individual, corporation,  partnership or other person other than a
citizen or resident of the United States,  a  corporation,  partnership or other
entity  created or  organized  in or under the laws of the United  States or any
political  subdivision  thereof,  an estate  that is  subject  to United  States
federal  income tax regardless of the source of its income or a trust if (i) for
taxable years  beginning after December 31, 1996 (or for taxable years beginning
after August 20, 1996, if the trustee has made an applicable election),  a court
within  the  United  States is able to  exercise  primary  supervision  over the
administration of such trust, and one or more United States fiduciaries have the
authority  to control all  substantial  decisions  of such trust or (ii) for all
other taxable  years,  such trust is subject to United States federal income tax
regardless of the source of its income.

Section 4.02.       Allocation of Realized Losses.

     (a) With  respect  to any  Distribution  Date,  the  principal  portion  of
Realized  Losses  (other than Debt Service  Reductions,  Excess  Special  Hazard
Losses,  Excess Fraud Losses and Excess Bankruptcy  Losses) will be allocated as
follows:

     first, to the Class B-5 Certificates  until the Class B-5 Principal Balance
has been reduced to zero;

     second, to the Class B-4 Certificates until the Class B-4 Principal Balance
has been reduced to zero;

     third, to the Class B-3 Certificates  until the Class B-3 Principal Balance
has been reduced to zero;

     fourth, to the Class B-2 Certificates until the Class B-2 Principal Balance
has been reduced to zero;

     fifth, to the Class B-1 Certificates  until the Class B-1 Principal Balance
has been reduced to zero;

     sixth, to the Class M Certificates  until the Class M Principal Balance has
been reduced to zero; and

     seventh,  concurrently,  to the Class A Certificates  (other than the Class
A-PO  Certificates) and Class A-PO  Certificates,  pro rata, based on the Non-PO
Fraction and the PO Fraction, respectively.

     This allocation of Realized  Losses will be effected  through the reduction
of the applicable Class's or Subclass's Principal Balance.

     (b) With respect to any Distribution  Date, the principal portion of Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
occurring  with  respect  to any  Mortgage  Loan  allocable  to the  Class  A-PO
Certificates will equal the product of the amount of any such principal loss and
the PO Fraction for such  Mortgage  Loan.  The  principal  portion of any Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
remaining after allocation to the Class A-PO Certificates in accordance with the
preceding  sentence  shall be allocated pro rata among the Class A  Certificates
(other  than the Class  A-PO  Certificates),  Class M  Certificates  and Class B
Certificates  based on the Class A Non-PO Principal  Balance,  Class M Principal
Balance and the Class B Principal Balance, respectively. Any such loss allocated
to the Class A Certificates  shall be allocated on the subsequent  Determination
Date among the  outstanding  Subclasses of Class A Certificates  (other than the
Class  A-PO   Certificates)  in  accordance  with  the  Class  A  Subclass  Loss
Percentages as of such Determination  Date. Any such loss allocated to the Class
B Certificates  shall be allocated pro rata among the outstanding  Subclasses of
Class B Certificates based on their Class B Subclass Principal Balances.

     (c) Any Realized Losses  allocated to a Subclass of Class A Certificates or
Class B Certificates or to the Class M Certificates  pursuant to Section 4.02(a)
or Section 4.02(b) shall be allocated among the Certificates of such Subclass or
Class based on their Percentage Interests.

     (d) In the event  that  there is a  recovery  of an amount  in  respect  of
principal of a Mortgage Loan which had  previously  been allocated as a Realized
Loss to any Subclasses of Class A Certificates,  the Class M Certificates or any
Subclasses of Class B Certificates,  each outstanding Class or Subclass to which
such Realized Loss had previously  been allocated shall be entitled to its share
(with respect to the Class A-PO  Certificates,  based on the PO Fraction of such
Mortgage  Loan and,  with  respect to the Class A  Certificates  (other than the
Class A-PO Certificates),  Class M Certificates and Class B Certificates,  based
on their pro rata share of the Non-PO  Fraction of such  Mortgage  Loan) of such
recovery up to the amount of such  Realized  Loss  previously  allocated to such
Class or Subclass on the  Distribution  Date in the month following the month in
which  such  recovery  is  received.  When the  Principal  Balance of a Class or
Subclass of Certificates  has been reduced to zero, such Class or Subclass shall
not be entitled to any share of such  recovery.  In the event that the amount of
such recovery exceeds the amount of such recovery  allocated to each outstanding
Class or Subclass in accordance with the preceding provisions,  each outstanding
Class  or  Subclass  shall be  entitled  to its pro rata  share  (determined  as
described  above) of such  excess up to the amount of any  unrecovered  Realized
Loss previously allocated to such Class or Subclass.

     (e) The interest  portion of Excess  Special  Hazard  Losses,  Excess Fraud
Losses  and  Excess  Bankruptcy  Losses  shall be  allocated  among  the Class A
Certificates,  Class M Certificates and Class B Certificates,  pro rata based on
the Class A Interest Accrual Amount, the Class M Interest Accrual Amount and the
Class B Interest  Accrual  Amount for the  related  Distribution  Date,  without
regard to any reduction  pursuant to this  sentence.  Any such loss allocated to
the Class A Certificates shall be allocated among the outstanding  Subclasses of
Class A  Certificates  (other than the Class A-PO  Certificates)  based on their
Class A Subclass  Interest  Percentages.  Any such loss allocated to the Class B
Certificates  will be  allocated  among the  outstanding  Subclasses  of Class B
Certificates based on their Class B Subclass Interest Percentages.  In addition,
after the Class M Principal  Balance and the Class B Principal Balance have been
reduced to zero,  the  interest  portion of Realized  Losses  (other than Excess
Special Hazard Losses, Excess Fraud Losses and Excess Bankruptcy Losses) will be
allocated among the outstanding  Subclasses of Class A Certificates  (other than
the  Class  A-PO  Certificates)   based  on  their  Class  A  Subclass  Interest
Percentages.

     (f) Realized Losses  allocated in accordance with this Section 4.02 will be
allocated on the  Determination  Date in the second month following the month in
which such loss was incurred with respect to the preceding Distribution Date.

     (g) With  respect  to any  Distribution  Date,  the  principal  portion  of
Realized  Losses and recoveries  attributable to previously  allocated  Realized
Losses  allocated  pursuant  to this  Section  4.02  will be  allocated  to each
Uncertificated Lower-Tier Interest in an amount equal to the amount allocated to
its respective Corresponding Upper-Tier Class or Classes as provided above.

     With respect to any  Distribution  Date,  the interest  portion of Realized
Losses  allocated  pursuant  to this  Section  4.02  will be  allocated  to each
Uncertificated  Lower-Tier Interest in the same relative proportions as interest
is allocated to such Uncertificated Lower-Tier Interest.

Section 4.03.       Paying Agent.

     (a) The Master Servicer hereby appoints the Trust  Administrator as initial
Paying  Agent to make  distributions  to  Certificateholders  and to  forward to
Certificateholders the periodic statements and the annual statements required by
Section 4.04 as agent of the Master Servicer.

     The Master Servicer may, at any time, remove or replace the Paying Agent.

     The Master  Servicer  shall  cause any  Paying  Agent that is not the Trust
Administrator to execute and deliver to the Trust Administrator an instrument in
which such Paying  Agent  agrees with the Trust  Administrator  that such Paying
Agent shall:

               (i) hold all amounts  remitted to it by the Master  Servicer  for
          distribution  to  Certificateholders  in  trust  for  the  benefit  of
          Certificateholders    until   such   amounts   are    distributed   to
          Certificateholders or otherwise disposed of as herein provided;

               (ii) give the Trust  Administrator  notice of any  default by the
          Master Servicer in remitting any required amount; and

               (iii) at any time  during the  continuance  of any such  default,
          upon the written request of the Trust Administrator,  forthwith pay to
          the  Trust  Administrator  all  amounts  held in trust by such  Paying
          Agent.

     (b) The Paying Agent shall establish and maintain a Payment Account,  which
shall be a separate trust account and an Eligible  Account,  in which the Master
Servicer shall cause to be deposited from funds in the  Certificate  Account or,
to the  extent  required  hereunder,  from its own funds (i) at or before  10:00
a.m.,  New York time, on the Business Day preceding each  Distribution  Date, by
wire transfer of  immediately  available  funds,  any Periodic  Advance for such
Distribution  Date,  pursuant to Section  3.03 and (ii) at or before 10:00 a.m.,
New York time, on the Business Day  preceding  each  Distribution  Date, by wire
transfer  of  immediately  available  funds,  (a) an  amount  equal  to the Pool
Distribution  Amount, (b) Net Foreclosure  Profits, if any, with respect to such
Distribution  Date and (c) the amount of any  recovery  in respect of a Realized
Loss. The Master  Servicer may cause the Paying Agent to invest the funds in the
Payment  Account.  Any such investment shall be in Eligible  Investments,  which
shall mature not later than the Business Day preceding the related  Distribution
Date   (unless  the  Eligible   Investments   are   obligations   of  the  Trust
Administrator,  in which case such Eligible  Investments  shall mature not later
than the  Distribution  Date),  and  shall not be sold or  disposed  of prior to
maturity. All income and gain realized from any such investment shall be for the
benefit of the Master  Servicer and shall be subject to its  withdrawal or order
from time to time.  The  amount of any  losses  incurred  in respect of any such
investments shall be deposited in the Payment Account by the Master Servicer out
of its own funds immediately as realized. The Paying Agent may withdraw from the
Payment  Account  any  amount  deposited  in the  Payment  Account  that was not
required to be deposited therein and may clear and terminate the Payment Account
pursuant to Section 9.01.

Section 4.04.       Statements to Certificateholders;
                    Report to the Trust Administrator and the Seller.

     Concurrently with each distribution pursuant to Section 4.01(f), the Master
Servicer,  or the Paying Agent appointed by the Master Servicer (upon receipt of
such statement from the Master Servicer), shall forward or cause to be forwarded
by mail to each  Holder of a  Certificate  and the  Seller a  statement  setting
forth:

               (i) the  amount of such  distribution  to Holders of each Class A
          Subclass allocable to principal,  separately identifying the aggregate
          amount of any Unscheduled Principal Receipts included therein;

               (ii) (a) the  amount  of such  distribution  to  Holders  of each
          Subclass of Class A Certificates allocable to interest, (b) the amount
          of the Current Class A Interest  Distribution Amount allocated to each
          Class A Subclass,  (c) any Class A Subclass Interest Shortfall Amounts
          arising with respect to such Distribution Date and any remaining Class
          A Subclass  Unpaid  Interest  Shortfall  with respect to each Subclass
          after  giving  effect  to such  distribution,  (d) the  amount  of any
          Non-Supported  Interest  Shortfall  allocated to each Class A Subclass
          for such  Distribution  Date and (e) the  interest  portion  of Excess
          Special  Hazard  Losses,  Excess  Fraud  Losses and Excess  Bankruptcy
          Losses allocated to each Subclass for such Distribution Date;

               (iii) the amount of such  distribution  to Holders of the Class M
          Certificates allocable to principal,  identifying the aggregate amount
          of any Unscheduled Principal Receipts included therein;

               (iv) (a) the amount of such  distribution to Holders of the Class
          M  Certificates  allocable to interest,  (b) the amount of the Current
          Class  M  Interest  Distribution  Amount,  (c) any  Class  M  Interest
          Shortfall  Amount arising with respect to such  Distribution  Date and
          any remaining Class M Unpaid Interest Shortfall after giving effect to
          such  distribution,  (d)  the  amount  of any  Non-Supported  Interest
          Shortfall  allocated to the Class M Certificates for such Distribution
          Date and (e) the interest  portion of Excess  Special  Hazard  Losses,
          Excess  Fraud  Losses and Excess  Bankruptcy  Losses  allocated to the
          Class M Certificates for such Distribution Date;

               (v) the  amount of such  distribution  to Holders of each Class B
          Subclass allocable to principal,  separately identifying the aggregate
          amount of any Unscheduled Principal Receipts included therein;

               (vi) (a) the amount of such distribution to Holders of each Class
          B Subclass allocable to interest,  (b) the amount of the Current Class
          B Interest  Distribution Amount allocated to each Class B Subclass and
          the Pass-Through  Rate applicable to such  Distribution  Date, (c) any
          Class B Subclass  Interest  Shortfall  Amounts arising with respect to
          such  Distribution  Date and any  remaining  Class B  Subclass  Unpaid
          Interest  Shortfall with respect to each Class B Subclass after giving
          effect  to such  distribution,  (d) the  amount  of any  Non-Supported
          Interest  Shortfall  allocated  to each  Class  B  Subclass  for  such
          Distribution  Date,  and (e) the  interest  portion of Excess  Special
          Hazard  Losses,  Excess  Fraud  Losses  and Excess  Bankruptcy  Losses
          allocated to each Class B Subclass for such Distribution Date;

               (vii) the amount of any  Periodic  Advance by any  Servicer,  the
          Master Servicer or the Trust  Administrator  pursuant to the Servicing
          Agreements or this Agreement;

               (viii)  the  number  of  Mortgage  Loans  outstanding  as of  the
          preceding Determination Date;

               (ix)  the  Class  A  Principal  Balance,  the  Class  A  Subclass
          Principal Balance of each Subclass of Class A Certificates,  the Class
          M Principal  Balance,  the Class B  Principal  Balance and the Class B
          Subclass Principal Balance of each Subclass of Class B Certificates as
          of  the  following  Determination  Date  after  giving  effect  to the
          distributions of principal made, and the principal portion of Realized
          Losses, if any, allocated with respect to such Distribution Date;

               (x) the  Adjusted  Pool  Amount,  the  Adjusted  Pool  Amount (PO
          Portion),  the Pool Scheduled  Principal Balance of the Mortgage Loans
          for such  Distribution  Date  and the  aggregate  Scheduled  Principal
          Balance of the Discount Mortgage Loans for such Distribution Date;

               (xi) the aggregate  Scheduled  Principal Balances of the Mortgage
          Loans  serviced by Norwest  Mortgage and,  collectively,  by the Other
          Servicers as of such Distribution Date;

               (xii) the Class A Percentage for the following  Distribution Date
          (without  giving effect to  Unscheduled  Principal  Receipts  received
          after the  Applicable  Unscheduled  Principal  Receipt  Period for the
          current  Distribution Date which are applied by a Servicer during such
          Applicable Unscheduled Principal Receipt Period);

               (xiii)  the  Class A  Prepayment  Percentage  for  the  following
          Distribution  Date  (without  giving effect to  Unscheduled  Principal
          Receipts received after the Applicable  Unscheduled  Principal Receipt
          Period  for the  current  Distribution  Date  which are  applied  by a
          Servicer during such Applicable Unscheduled Principal Receipt Period);

               (xiv) the Class M Percentage for the following  Distribution Date
          (without  giving effect to  Unscheduled  Principal  Receipts  received
          after the  Applicable  Unscheduled  Principal  Receipt  Period for the
          current  Distribution Date which are applied by a Servicer during such
          Applicable Unscheduled Principal Receipt Period);

               (xv)  the  Class  M  Prepayment   Percentage  for  the  following
          Distribution  Date  (without  giving effect to  Unscheduled  Principal
          Receipts received after the Applicable  Unscheduled  Principal Receipt
          Period  for the  current  Distribution  Date  which are  applied  by a
          Servicer during such Applicable Unscheduled Principal Receipt Period);

               (xvi) the Class B-1,  Class B-2,  Class B-3,  Class B-4 and Class
          B-5  Percentages for the following  Distribution  Date (without giving
          effect to Unscheduled Principal Receipts received after the Applicable
          Unscheduled Principal Receipt Period for the current Distribution Date
          which are  applied by a Servicer  during such  Applicable  Unscheduled
          Principal Receipt Period);

               (xvii) the Class B-1,  Class B-2,  Class B-3, Class B-4 and Class
          B-5  Prepayment   Percentages  for  the  following  Distribution  Date
          (without  giving effect to  Unscheduled  Principal  Receipts  received
          after the  Applicable  Unscheduled  Principal  Receipt  Period for the
          current  Distribution Date which are applied by a Servicer during such
          Applicable Unscheduled Principal Receipt Period);

               (xviii) the number and aggregate  principal  balances of Mortgage
          Loans delinquent (a) one month, (b) two months and (c) three months or
          more;

               (xix) the number and aggregate principal balances of the Mortgage
          Loans in foreclosure as of the preceding Determination Date;

               (xx)  the  book  value  of  any  real  estate  acquired   through
          foreclosure or grant of a deed in lieu of foreclosure;

               (xxi) the amount of the  remaining  Special  Hazard Loss  Amount,
          Fraud  Loss  Amount  and  Bankruptcy  Loss  Amount  as of the close of
          business on such Distribution Date;

               (xxii) the  principal  and interest  portions of Realized  Losses
          allocated as of such Distribution Date and the amount of such Realized
          Losses constituting Excess Special Hazard Losses,  Excess Fraud Losses
          or Excess Bankruptcy Losses;

               (xxiii) the aggregate  amount of Bankruptcy  Losses  allocated to
          each Subclass of Class B Certificates  or,  following the reduction of
          the  Class  B  Principal  Balance  to  zero,  solely  to the  Class  M
          Certificates  in  accordance  with Section  4.02(a) since the Relevant
          Anniversary;

               (xxiv) the amount by which the Class B Subclass Principal Balance
          of each  Subclass  of Class B  Certificates  and the Class M Principal
          Balance has been reduced as a result of Realized  Losses  allocated as
          of such Distribution Date;

               (xxv) the unpaid  principal  balance of any  Mortgage  Loan as to
          which  the  Servicer  of such  Mortgage  Loan  has  determined  not to
          foreclose  because it believes the related  Mortgaged  Property may be
          contaminated  with  or  affected  by  hazardous  wastes  or  hazardous
          substances;

               (xxvi)  the  amount of the  aggregate  Servicing  Fees and Master
          Servicing Fees paid (and not previously  reported) with respect to the
          related  Distribution  Date  and the  amount  by which  the  aggregate
          Available  Master  Servicer  Compensation  has  been  reduced  by  the
          Prepayment Interest Shortfall for the related Distribution Date;

               (xxvii) in the case of the Class A-5  Certificate,  the Class A-5
          Notional Amount;

               (xxviii) the Class A-PO Deferred Amount, if any; and

               (xxix) such other  customary  information as the Master  Servicer
          deems necessary or desirable to enable  Certificateholders  to prepare
          their tax returns;

and shall  deliver a copy of each type of statement to the Trust  Administrator,
who shall provide copies thereof to Persons making written  request  therefor at
the Corporate Trust Office.

     In the case of information  furnished with respect to a Subclass of Class A
Certificates  pursuant  to  clauses  (i)  and  (ii)  above,  with  the  Class  M
Certificates  pursuant  to clauses  (iii) and (iv)  above and with  respect to a
Class B Subclass  pursuant to clauses (v) and (vi) above,  the amounts  shall be
expressed as a dollar amount per Class A, Class M or Class B Certificate  (other
than the Class A-R and Class A-LR Certificates) with a $1,000 Denomination, as a
dollar amount per Class A-R and Class A-LR Certificate with a $25 Denomination.

     Within a reasonable period of time after the end of each calendar year, the
Master Servicer shall furnish or cause to be furnished to each Person who at any
time  during the  calendar  year was the  Holder of a  Certificate  a  statement
containing  the  information  set forth in clauses (i) and (ii)(a)  above in the
case of a Class A Certificateholder,  the information set forth in clauses (iii)
and (iv)(a) above in the case of a Class M Certificateholder and the information
contained  in  clauses  (v)  and  (vi)(a)  above  in  the  case  of  a  Class  B
Certificateholder  aggregated  for  such  calendar  year or  applicable  portion
thereof during which such Person was a Certificateholder. Such obligation of the
Master  Servicer  shall be deemed  to have been  satisfied  to the  extent  that
substantially  comparable  information  shall be provided by the Master Servicer
pursuant to any  requirements of the Code. Prior to the close of business on the
third Business Day preceding each  Distribution  Date, the Master Servicer shall
furnish a statement to the Trust Administrator,  any Paying Agent and the Seller
(the information in such statement to be made available to Certificateholders by
the Master  Servicer  on  written  request)  setting  forth the Class A Subclass
Distribution  Amount  with  respect  to  each  Class  A  Subclass,  the  Class M
Distribution Amount and the Class B Subclass Distribution Amount with respect to
each Class B Subclass.  The determination by the Master Servicer of such amounts
shall,  in the absence of obvious error, be  presumptively  deemed to be correct
for all  purposes  hereunder  and the Trust  Administrator  and the Paying Agent
shall be protected in relying  upon the same  without any  independent  check or
verification.

     In addition to the reports  required  pursuant to this  Section  4.04,  the
Master  Servicer  shall make  available  upon  request  to each  Holder and each
proposed  transferee  of a  Class  M or  Class  B  Certificate  such  additional
information,  if any, as may be required to permit the  proposed  transfer to be
effected pursuant to Rule 144A.

Section 4.05.       Reports to Mortgagors and the Internal Revenue Service.

     The Master  Servicer  shall, in each year beginning after the Cut-Off Date,
make the reports of foreclosures and  abandonments of any Mortgaged  Property as
required by Code Section 6050J. In order to facilitate  this reporting  process,
the Master Servicer shall request that each Servicer,  on or before January 15th
of each year, shall provide to the Internal Revenue Service,  with copies to the
Master Servicer, reports relating to each instance occurring during the previous
calendar  year in which such  Servicer (i) on behalf of the Trust  Administrator
acquires  an  interest  in a Mortgaged  Property  through  foreclosure  or other
comparable  conversion  in full  or  partial  satisfaction  of a  Mortgage  Loan
serviced by such Servicer,  or (ii) knows or has reason to know that a Mortgaged
Property has been  abandoned.  Reports from the  Servicers  shall be in form and
substance sufficient to meet the reporting  requirements imposed by Code Section
6050J.  In  addition,  each  Servicer  shall  provide the Master  Servicer  with
sufficient  information  to allow the Master  Servicer  to, for each year ending
after the  Cut-Off  Date,  provide,  or cause to be  provided,  to the  Internal
Revenue  Service and the Mortgagors  such  information as is required under Code
Sections 6050H (regarding payment of interest) and 6050P (regarding cancellation
of indebtedness).


<PAGE>


                                    ARTICLE V

                                THE CERTIFICATES

Section 5.01.       The Certificates.

     (a) The Class A, Class M and Class B  Certificates  shall be issued only in
minimum  denominations  of a Single  Certificate  and, except for the Class A-5,
Class A-R and Class A-LR  Certificates,  integral  multiples of $1,000 in excess
thereof  (except,  if necessary,  for one  Certificate of each Class or Subclass
(other than the Class A-5, Class A-R or Class A-LR  Certificate)  that evidences
one Single Certificate plus such additional principal portion or notional amount
as is required in order for all  Certificates of such Class or Subclass to equal
the aggregate  Original  Class A Subclass  Principal  Balance,  Original Class M
Principal Balance or the aggregate  Original Class B Subclass  Principal Balance
of such Class or Subclass,  as the case may be), and shall be  substantially  in
the  respective  forms set forth as Exhibits  A-1, A-2, A-3, A-4, A-5, A-6, A-7,
A-8,  A-PO,  A-R,  A-LR,  B-1,  B-2,  B-3,  B-4,  B-5, C, and D (reverse side of
Certificates)  hereto. On original issue the Certificates  shall be executed and
delivered  by the Trust  Administrator  to or upon the order of the Seller  upon
receipt by the Trust  Administrator or the Custodian of the documents  specified
in Section 2.01. The aggregate  principal portion (or notional amount) evidenced
by the Class A, Class M and Class B Certificates shall be the sum of the amounts
specifically set forth in the respective Certificates. The Certificates shall be
executed by manual or facsimile  signature on behalf of the Trust  Administrator
by any Responsible Officer thereof. Certificates bearing the manual or facsimile
signatures of individuals  who were at any time the proper officers of the Trust
Administrator  shall  bind the  Trust  Administrator  notwithstanding  that such
individuals  or any of them  have  ceased  to hold  such  offices  prior  to the
authentication and delivery of such Certificates or did not hold such offices at
the date of such  Certificates.  No Certificate shall be entitled to any benefit
under this Agreement, or be valid for any purpose, unless manually countersigned
by a Responsible Officer of the Trust Administrator,  or unless there appears on
such Certificate a certificate of authentication  executed by the Authenticating
Agent by manual  signature,  and such  countersignature  or  certificate  upon a
Certificate  shall be  conclusive  evidence,  and the only  evidence,  that such
Certificate  has  been  duly   authenticated   and  delivered   hereunder.   All
Certificates shall be dated the date of their authentication.

     Until such time as Definitive  Certificates  are issued pursuant to Section
5.07, each Book-Entry Certificate shall bear the following legend:

     "Unless this  certificate is presented by an authorized  representative  of
[the Clearing  Agency] to the Trust  Administrator or its agent for registration
of transfer,  exchange or payment,  and any certificate  issued is registered in
the  name  of [the  Clearing  Agency]  or such  other  name as  requested  by an
authorized  representative  of [the Clearing  Agency] and any payment is made to
[the Clearing  Agency],  any  transfer,  pledge or other use hereof for value or
otherwise by or to any person is wrongful  since the  registered  owner  hereof,
[the Clearing Agency], has an interest herein."

     (b) Upon original issuance, the Book-Entry  Certificates shall be issued in
the  form  of one or  more  typewritten  certificates,  to be  delivered  to The
Depository Trust Company,  the initial Clearing Agency, by, or on behalf of, the
Seller.  Such  Certificates  shall  initially be registered  in the  Certificate
Register  in the name of the  nominee of the  initial  Clearing  Agency,  and no
Beneficial  Owner  will  receive  a  definitive  certificate  representing  such
Beneficial Owner's interest in the Book-Entry  Certificates,  except as provided
in Section 5.07.  Unless and until  definitive,  fully  registered  certificates
("Definitive  Certificates")  have been issued to Beneficial  Owners pursuant to
Section 5.07:

                  (i) the  provisions  of this Section  5.01(b) shall be in full
         force and effect;

                  (ii)  the  Seller,   the  Master  Servicer,   the  Certificate
         Registrar and the Trust Administrator may deal with the Clearing Agency
         for  all  purposes  (including  the  making  of  distributions  on  the
         Book-Entry  Certificates  and the taking of  actions by the  Holders of
         Book-Entry  Certificates)  as  the  authorized  representative  of  the
         Beneficial Owners;

                 (iii) to the extent that the provisions of this Section 5.01(b)
         conflict with any other provisions of this Agreement, the provisions of
         this Section 5.01(b) shall control;

                  (iv) the rights of Beneficial  Owners shall be exercised  only
         through the Clearing  Agency and shall be limited to those  established
         by law, the rules,  regulations  and procedures of the Clearing  Agency
         and agreements  between such Beneficial  Owners and the Clearing Agency
         and/or the Clearing  Agency  Participants,  and all  references in this
         Agreement to actions by  Certificateholders  shall, with respect to the
         Book-Entry Certificates,  refer to actions taken by the Clearing Agency
         upon  instructions  from  the  Clearing  Agency  Participants,  and all
         references in this  Agreement to  distributions,  notices,  reports and
         statements to Certificateholders  shall, with respect to the Book-Entry
         Certificates,  refer to distributions,  notices, reports and statements
         to the Clearing  Agency or its  nominee,  as  registered  holder of the
         Book-Entry  Certificates,  as the  case  may be,  for  distribution  to
         Beneficial  Owners in  accordance  with the  procedures of the Clearing
         Agency; and

                   (v)  the  initial   Clearing   Agency  will  make  book-entry
         transfers  among the  Clearing  Agency  Participants  and  receive  and
         transmit distributions of principal and interest on the Certificates to
         the Clearing  Agency  Participants,  for  distribution by such Clearing
         Agency Participants to the Beneficial Owners or their nominees.

     For purposes of any  provision of this  Agreement  requiring or  permitting
actions  with the  consent of, or at the  direction  of,  Holders of  Book-Entry
Certificates  evidencing  specified Voting Interests,  such direction or consent
shall be given by  Beneficial  Owners  having the  requisite  Voting  Interests,
acting through the Clearing Agency.

     Unless and until  Definitive  Certificates  have been issued to  Beneficial
Owners pursuant to Section 5.07, copies of the reports or statements referred to
in Section 4.04 shall be available to Beneficial  Owners upon written request to
the Trust Administrator at the Corporate Trust Office.

Section 5.02.       Registration of Transfer and Exchange of Certificates.

     (a) The Trust Administrator shall cause to be kept at one of the offices or
agencies to be maintained in  accordance  with the  provisions of Section 5.06 a
Certificate Register in which, subject to such reasonable  regulations as it may
prescribe,  the  Trust  Administrator  shall  provide  for the  registration  of
Certificates  and of transfers and exchanges of Certificates as herein provided.
The Trust Administrator shall act as, or shall appoint, a Certificate  Registrar
for the purpose of  registering  Certificates  and  transfers  and  exchanges of
Certificates as herein provided.

     Upon  surrender  for  registration  of transfer of any  Certificate  at any
office or agency  maintained  for such  purpose  pursuant  to Section  5.06 (and
subject to the  provisions of this Section 5.02) the Trust  Administrator  shall
execute,  and shall date,  authenticate  (or cause the  Authenticating  Agent to
authenticate)  and  deliver,  in  the  name  of  the  designated  transferee  or
transferees,  one or more new Certificates of a like aggregate principal portion
or Percentage Interest and of the same Class or Subclass.

     At the option of the Certificateholders,  Certificates may be exchanged for
other  Certificates of authorized  Denominations  of a like aggregate  principal
portion or Percentage  Interest and of the same Class or Subclass upon surrender
of the  Certificates to be exchanged at any such office or agency.  Whenever any
Certificates  are so surrendered  for exchange,  the Trust  Administrator  shall
execute,  and shall date,  authenticate  (or cause the  Authenticating  Agent to
authenticate) and deliver, the Certificates which the  Certificateholder  making
the exchange is entitled to receive.  Every Certificate presented or surrendered
for transfer or exchange shall (if so required by the  Certificate  Registrar or
the Trust  Administrator)  be duly endorsed by, or be  accompanied  by a written
instrument of transfer in form satisfactory to the Certificate  Registrar,  duly
executed by the Holder thereof or his attorney duly authorized in writing.

     No  service   charge  shall  be  made  for  any  transfer  or  exchange  of
Certificates,  but the Trust  Administrator  or the  Certificate  Registrar  may
require payment of a sum sufficient to cover any tax or governmental charge that
may be imposed in connection with any transfer or exchange of Certificates.

     All Certificates surrendered for transfer and exchange shall be canceled by
the Certificate  Registrar,  the Trust Administrator or the Authenticating Agent
in accordance with their standard procedures.

     (b) No transfer of a Class B-3, Class B-4 or Class B-5 Certificate shall be
made unless the  registration  requirements  of the  Securities  Act of 1933, as
amended,  and any applicable  State  securities  laws are complied with, or such
transfer is exempt from the registration  requirements  under said Act and laws.
In the event that a transfer is to be made in reliance  upon an  exemption  from
said Act or laws, (i) unless such transfer is made in reliance on Rule 144A, the
Trustee or the Seller  may, if such  transfer  is to be made within  three years
after the later of (i) the date of the initial sale of  Certificates or (ii) the
last  date on which  the  Seller or any  affiliate  thereof  was a Holder of the
Certificates proposed to be transferred, require a Class B-3, Class B-4 or Class
B-5  Certificateholder to deliver a written Opinion of Counsel acceptable to and
in form and substance satisfactory to the Trust Administrator and the Seller, to
the effect that such transfer may be made  pursuant to an exemption,  describing
the applicable  exemption and the basis  therefor,  from said Act and laws or is
being made pursuant to said Act and laws,  which Opinion of Counsel shall not be
an expense of the Trust  Administrator,  the  Trustee,  the Seller or the Master
Servicer,  and (ii) the Trust  Administrator  shall  require the  transferee  to
execute an investment  letter in the form of Exhibit J hereto  certifying to the
Seller and the Trust  Administrator the facts  surrounding such transfer,  which
investment  letter  shall  not be an  expense  of the Trust  Administrator,  the
Trustee, the Seller or the Master Servicer. The Holder of a Class B-3, Class B-4
or Class B-5 Certificate desiring to effect such transfer shall, and does hereby
agree to, indemnify the Trust Administrator, the Trustee, the Seller, the Master
Servicer  and any  Paying  Agent  acting on behalf of the  Trustee  against  any
liability  that may  result if the  transfer  is not so exempt or is not made in
accordance  with such  federal and state laws.  Neither the Seller nor the Trust
Administrator  is under an  obligation  to register the Class B-3,  Class B-4 or
Class B-5 Certificates under said Act or any other securities law.

     (c) No  transfer of a Class M or Class B  Certificate  shall be made unless
the Trustee shall have received (i) a representation  letter from the transferee
in the form of Exhibit J hereto,  in the case of a Class B-3, Class B-4 or Class
B-5 Certificate,  or in the form of Exhibit K hereto,  in the case of a Class M,
Class  B-1 or  Class  B-2  Certificate,  to the  effect  that  either  (a)  such
transferee   is  not  an  employee   benefit  plan  subject  to  the   fiduciary
responsibility provisions of ERISA or Code Section 4975, or a governmental plan,
as defined in Section 3(32) of ERISA, or subject to any federal,  state or local
law  ("Similar  Law")  which is to a material  extent  similar to the  foregoing
provisions  of ERISA or the Code  (collectively,  a "Plan")  and is not a person
acting on behalf of or using the assets of any such Plan,  which  representation
letter  shall not be an expense of the Trust  Administrator,  the  Trustee,  the
Seller or the Master Servicer or (b) if such transferee is an insurance company,
the source of funds used to purchase  the Class M or Class B  Certificate  is an
"insurance  company general account" (as such term is defined in Section V(e) of
Prohibited  Transaction Class Exemption 95-60 ("PTE 95-60"),  60 Fed. Reg. 35925
(July 12,  1995)) and there is no Plan with  respect to which the amount of such
general  account's  reserves and liabilities  for the contract(s)  held by or on
behalf of such Plan and all other  Plans  maintained  by the same  employer  (or
affiliate  thereof as  defined  in Section  V(a)(1) of PTE 95-60) or by the same
employee  organization  exceeds 10% of the total of all reserves and liabilities
of such general  account (as such amounts are  determined  under Section I(a) of
PTE 95-60) at the date of acquisition or (ii) in the case of any such Class M or
Class B  Certificate  presented  for  registration  in the name of a Plan,  or a
trustee of any such Plan,  (A) an Opinion of Counsel  satisfactory  to the Trust
Administrator  and the Seller to the effect that the purchase or holding of such
Class M or Class B Certificate will not result in the assets of the Trust Estate
being  deemed to be "plan  assets"  and  subject to the  prohibited  transaction
provisions  of ERISA,  the Code or Similar  Law and will not  subject  the Trust
Administrator,  the Trustee, the Seller or the Master Servicer to any obligation
in addition to those  undertaken  in this  Agreement,  which  Opinion of Counsel
shall not be an expense of the Trust  Administrator,  the Trustee, the Seller or
the  Master  Servicer  and  (B)  such  other  opinions  of  counsel,   officer's
certificates  and agreements as the Seller or the Master Servicer may require in
connection with such transfer, which opinions of counsel, officers' certificates
and agreements shall not be an expense of the Trust Administrator,  the Trustee,
the Seller or the Master  Servicer.  The Class M and Class B Certificates  shall
bear a  legend  referring  to  the  foregoing  restrictions  contained  in  this
paragraph.

     (d) No legal or beneficial  interest in all or any portion of the Class A-R
or Class  A-LR  Certificate  may be  transferred  directly  or  indirectly  to a
"disqualified  organization" within the meaning of Code Section 860E(e)(5) or an
agent  of  a  disqualified   organization   (including  a  broker,  nominee,  or
middleman),  to a Plan or a Person  investing the assets of a Plan (such plan or
Person,  an  "ERISA  Prohibited  Holder")  or  to  an  individual,  corporation,
partnership or other person unless such transferee (i) is not a Non-U.S.  Person
or (ii) is a Non-U.S.  Person that holds the Class A-R or Class A-LR Certificate
in connection  with the conduct of a trade or business  within the United States
and has furnished the transferor and the Trust  Administrator  with an effective
Internal  Revenue  Service  Form  4224 or (iii) is a  Non-U.S.  Person  that has
delivered to both the  transferor  and the Trust  Administrator  an opinion of a
nationally  recognized  tax counsel to the effect that the transfer of the Class
A-R or Class A-LR  Certificate to it is in accordance  with the  requirements of
the Code and the  regulations  promulgated  thereunder and that such transfer of
the Class A-R or Class A-LR  Certificate  will not be  disregarded  for  federal
income tax purposes  (any such person who is not covered by clauses (i), (ii) or
(iii) above being referred to herein as a "Non-permitted  Foreign Holder"),  and
any  such  purported  transfer  shall  be void and  have no  effect.  The  Trust
Administrator  shall  not  execute,  and shall  not  authenticate  (or cause the
Authenticating Agent to authenticate) and deliver, a new Class A-R or Class A-LR
Certificate in connection with any such transfer to a disqualified  organization
or agent thereof (including a broker, nominee or middleman), an ERISA Prohibited
Holder or a Non-permitted  Foreign Holder, and neither the Certificate Registrar
nor  the  Trust   Administrator   shall  accept  a  surrender  for  transfer  or
registration  of  transfer,  or register the transfer of, the Class A-R or Class
A-LR  Certificate,  unless  the  transferor  shall  have  provided  to the Trust
Administrator  an  affidavit,  substantially  in the form  attached as Exhibit H
hereto, signed by the transferee,  to the effect that the transferee is not such
a  disqualified  organization,   an  agent  (including  a  broker,  nominee,  or
middleman)  for any  entity  as to  which  the  transferee  has not  received  a
substantially  similar affidavit,  an ERISA Prohibited Holder or a Non-permitted
Foreign  Holder,  which affidavit shall contain the consent of the transferee to
any such  amendments of this Agreement as may be required to further  effectuate
the  foregoing  restrictions  on  transfer  of  the  Class  A-R  or  Class  A-LR
Certificate  to  disqualified   organizations,   ERISA  Prohibited   Holders  or
Non-permitted  Foreign Holders.  Such affidavit shall also contain the statement
of the transferee  that (i) the transferee  has  historically  paid its debts as
they have  come due and  intends  to do so in the  future,  (ii) the  transferee
understands  that it may incur  liabilities in excess of cash flows generated by
the residual interest, (iii) the transferee intends to pay taxes associated with
holding the residual  interest as they become due and (iv) the  transferee  will
not transfer the Class A-R or Class A-LR  Certificate to any Person who does not
provide an affidavit substantially in the form attached as Exhibit H hereto.

     The  affidavit  described in the  preceding  paragraph,  if not executed in
connection with the initial issuance of the Class A-R or Class A-LR Certificate,
shall be  accompanied  by a written  statement in the form attached as Exhibit I
hereto,  signed  by the  transferor,  to the  effect  that as of the time of the
transfer,  the  transferor  has no actual  knowledge  that the  transferee  is a
disqualified  organization,  ERISA Prohibited  Holder or  Non-permitted  Foreign
Holder,  and has no knowledge or reason to know that the statements  made by the
transferee  with  respect to clauses  (i) and (iii) of the last  sentence of the
preceding  paragraph  are not true.  The Class A-R and Class  A-LR  Certificates
shall bear a legend  referring to the foregoing  restrictions  contained in this
paragraph and the preceding paragraph.

     Upon notice to the Master Servicer that any legal or beneficial interest in
any  portion of the Class A-R or Class A-LR  Certificate  has been  transferred,
directly  or  indirectly,  to  a  disqualified  organization  or  agent  thereof
(including a broker,  nominee,  or middleman) in  contravention of the foregoing
restrictions, (i) such transferee shall be deemed to hold the Class A-R or Class
A-LR  Certificate in  constructive  trust for the last  transferor who was not a
disqualified  organization  or  agent  thereof,  and  such  transferor  shall be
restored as the owner of such Class A-R or Class A-LR  Certificate as completely
as if such transfer had never  occurred,  provided that the Master Servicer may,
but is not required to, recover any  distributions  made to such transferee with
respect to Class A-R or Class  A-LR  Certificate,  and (ii) the Master  Servicer
agrees to furnish to the Internal  Revenue  Service and to any transferor of the
Class A-R or Class A-LR Certificate or such agent (within 60 days of the request
therefor  by  the  transferor  or  agent)  such  information  necessary  to  the
application  of Code Section  860E(e) as may be required by the Code,  including
but not limited to the present value of the total anticipated  excess inclusions
with respect to the Class A-R or Class A-LR Certificate (or portion thereof) for
periods after such transfer. At the election of the Master Servicer, the cost to
the Master Servicer of computing and furnishing such  information may be charged
to the transferor or such agent referred to above;  however, the Master Servicer
shall in no event be excused from furnishing such information.

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

     If (i) any mutilated  Certificate is surrendered to the Trust Administrator
or the  Authenticating  Agent, or the Trust  Administrator or the Authenticating
Agent receives evidence to its satisfaction of the destruction, loss or theft of
any Certificate,  and (ii) there is delivered to the Trust  Administrator or the
Authenticating  Agent such  security or  indemnity as may be required by them to
hold  each of them  harmless,  then,  in the  absence  of  notice  to the  Trust
Administrator  or the  Authenticating  Agent  that  such  Certificate  has  been
acquired by a bona fide  purchaser,  the Trust  Administrator  shall execute and
authenticate (or cause the Authenticating Agent to authenticate) and deliver, in
exchange  for or in lieu  of any  such  mutilated,  destroyed,  lost  or  stolen
Certificate, a new Certificate of like tenor and principal portion or Percentage
Interest  and of the  same  Class or  Subclass.  Upon  the  issuance  of any new
Certificate  under this  Section,  the Trust  Administrator  or the  Certificate
Registrar may require the payment of a sum  sufficient to cover any tax or other
governmental  charge  that may be  imposed  in  relation  thereto  and any other
expense  (including  the fees and  expenses  of the Trust  Administrator  or the
Authenticating Agent) in connection therewith.  Any duplicate Certificate issued
pursuant to this Section shall constitute complete and indefeasible  evidence of
ownership in the Trust Estate, as if originally issued, whether or not the lost,
stolen, or destroyed Certificate shall be found at any time.

Section 5.04.       Persons Deemed Owners.

     Prior  to  the  due  presentation  of a  Certificate  for  registration  of
transfer, the Seller, the Master Servicer, the Trustee, the Trust Administrator,
the Certificate Registrar and any agent of the Seller, the Master Servicer,  the
Trustee,  the Trust  Administrator  or the  Certificate  Registrar may treat the
Person  in  whose  name  any  Certificate  is  registered  as the  owner of such
Certificate for the purpose of receiving distributions pursuant to Section 4.01,
and for all other  purposes  whatsoever,  and  neither  the  Seller,  the Master
Servicer,  the Trustee, the Trust Administrator,  the Certificate  Registrar nor
any  agent  of  the  Seller,  the  Master  Servicer,   the  Trustee,  the  Trust
Administrator,  or the Certificate  Registrar shall be affected by notice to the
contrary.

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

     (a) If the Trust Administrator is not acting as Certificate Registrar,  the
Certificate  Registrar  shall  furnish  or cause to be  furnished  to the  Trust
Administrator,  within 15 days after receipt by the  Certificate  Registrar of a
request by the Trust Administrator in writing, a list, in such form as the Trust
Administrator  may  reasonably  require,  of  the  names  and  addresses  of the
Certificateholders of each Class or Subclass as of the most recent Record Date.

     (b)  If  five  or  more  Certificateholders  (hereinafter  referred  to  as
"applicants") apply in writing to the Trust Administrator,  and such application
states that the applicants  desire to communicate with other  Certificateholders
with respect to their rights under this Agreement or under the  Certificates and
is accompanied by a copy of the communication  which such applicants  propose to
transmit,  then  the  Trust  Administrator  shall,  within  five  Business  Days
following the receipt of such application,  afford such applicants access during
normal business hours to the most recent list of Certificateholders  held by the
Trust Administrator. If such a list is as of the date more than 90 days prior to
the date of receipt of such applicants'  request and the Trust  Administrator is
not the Certificate  Registrar,  the Trust  Administrator shall promptly request
from the  Certificate  Registrar a current  list as provided  in  paragraph  (a)
hereof,  and shall  afford such  applicants  access to such list  promptly  upon
receipt.

     (c) Every Certificateholder, by receiving and holding a Certificate, agrees
with the Seller,  the Master  Servicer,  the  Certificate  Registrar,  the Trust
Administrator and the Trustee that neither the Seller, the Master Servicer,  the
Certificate  Registrar,  the Trust  Administrator  nor the Trustee shall be held
accountable by reason of the disclosure of any such information as to the names,
addresses  and  Percentage  Interests  of  the   Certificateholders   hereunder,
regardless of the source from which such information was delivered.

Section 5.06.       Maintenance of Office or Agency.

     The Trust Administrator will maintain,  at its expense, an office or agency
where  Certificates  may be surrendered for registration of transfer or exchange
and where notices and demands to or upon the Certificate Registrar in respect of
the  Certificates  and this  Agreement  may be served.  The Trust  Administrator
initially  designates  the Corporate  Trust Office and the  principal  corporate
trust office of the  Authenticating  Agent,  if any, as its offices and agencies
for said purposes.

Section 5.07.       Definitive Certificates.

     If (i)(A) the Master Servicer  advises the Trust  Administrator  in writing
that the Clearing  Agency is no longer willing or able properly to discharge its
responsibilities as depository with respect to the Book-Entry Certificates,  and
(B) the Master  Servicer  is unable to locate a  qualified  successor,  (ii) the
Master Servicer, at its option,  advises the Trust Administrator in writing that
it elects to terminate  the  book-entry  system  through the Clearing  Agency or
(iii) after the occurrence of dismissal or  resignation of the Master  Servicer,
Beneficial Owners  representing  aggregate Voting Interests of not less than 51%
of the aggregate  Voting  Interests of each  outstanding  Subclass of Book-Entry
Certificates  advise the Trust  Administrator  through the  Clearing  Agency and
Clearing Agency  Participants  in writing that the  continuation of a book-entry
system  through the  Clearing  Agency is no longer in the best  interests of the
Beneficial Owners, the Trust  Administrator  shall notify the Beneficial Owners,
through the  Clearing  Agency,  of the  occurrence  of any such event and of the
availability  of Definitive  Certificates  to Beneficial  Owners  requesting the
same.  Upon surrender to the Trust  Administrator  by the Clearing Agency of the
Certificates  held of  record  by its  nominee,  accompanied  by  reregistration
instructions and directions to execute and  authenticate  new Certificates  from
the Master  Servicer,  the Trust  Administrator  shall execute and  authenticate
Definitive  Certificates for delivery at its Corporate Trust Office.  The Master
Servicer  shall  arrange  for,  and will  bear all costs of,  the  printing  and
issuance  of such  Definitive  Certificates.  Neither  the  Seller,  the  Master
Servicer,  the Trustee nor the Trust Administrator shall be liable for any delay
in delivery of such  instructions  by the Clearing  Agency and may  conclusively
rely on, and shall be protected in relying on, such instructions.

Section 5.08.       Notices to Clearing Agency.

     Whenever  notice  or  other  communication  to the  Holders  of  Book-Entry
Certificates  is  required  under this  Agreement,  unless and until  Definitive
Certificates  shall have been issued to  Beneficial  Owners  pursuant to Section
5.07,  the Trust  Administrator  shall give all such notices and  communications
specified  herein  to be given to  Holders  of  Book-Entry  Certificates  to the
Clearing Agency.


<PAGE>


                                   ARTICLE VI

                       THE SELLER AND THE MASTER SERVICER

Section 6.01.      Liability of the Seller and the Master Servicer.

     The  Seller  and the Master  Servicer  shall  each be liable in  accordance
herewith  only to the  extent of the  obligations  specifically  imposed by this
Agreement and undertaken hereunder by the Seller and the Master Servicer.

Section 6.02.      Merger or Consolidation of the Seller or the Master Servicer.

     Subject to the following paragraph, the Seller and the Master Servicer each
will keep in full effect its  existence,  rights and franchises as a corporation
under the laws of the  jurisdiction  of its  incorporation,  and will obtain and
preserve  its  qualification  to do  business as a foreign  corporation  in each
jurisdiction in which such qualification is or shall be necessary to protect the
validity and  enforceability  of this Agreement,  the Certificates or any of the
Mortgage Loans and to perform its respective duties under this Agreement.

     The Seller or the Master  Servicer  may be merged or  consolidated  with or
into any  Person,  or  transfer  all or  substantially  all of its assets to any
Person,  in which case any Person  resulting from any merger or consolidation to
which the Seller or Master Servicer shall be a party,  or any Person  succeeding
to the business of the Seller or Master Servicer,  shall be the successor of the
Seller or Master  Servicer  hereunder,  without the  execution  or filing of any
paper or any  further  act on the part of any of the  parties  hereto,  anything
herein to the contrary notwithstanding;  provided, however, that, in the case of
the Master  Servicer,  any such successor or resulting Person shall be qualified
to service mortgage loans for FNMA or FHLMC.

Section  6.03.  Limitation on Liability of the Seller,  the Master  Servicer and
                Others.

     Neither the Seller nor the Master Servicer nor any subcontractor nor any of
the partners,  directors,  officers, employees or agents of any of them shall be
under any liability to the Trust Estate or the  Certificateholders  and all such
Persons shall be held harmless for any action taken or for  refraining  from the
taking of any action in good faith pursuant to this Agreement,  or for errors in
judgment;  provided,  however,  that this  provision  shall not protect any such
Person  against  any breach of  warranties  or  representations  made  herein or
against  any  liability  which would  otherwise  be imposed by reason of willful
misfeasance,  bad faith or gross  negligence in the  performance of duties or by
reason of reckless  disregard of obligations and duties  hereunder.  The Seller,
the Master Servicer,  any  subcontractor,  and any partner,  director,  officer,
employee  or agent of any of them shall be entitled  to  indemnification  by the
Trust Estate and will be held  harmless  against any loss,  liability or expense
incurred in connection  with any legal action  relating to this Agreement or the
Certificates,  other than any loss,  liability or expense  incurred by reason of
willful misfeasance,  bad faith or gross negligence in the performance of his or
its  duties  hereunder  or by  reason  of  reckless  disregard  of  his  or  its
obligations and duties hereunder. The Seller, the Master Servicer and any of the
directors, officers, employees or agents of either may rely in good faith on any
document of any kind which,  prima facie, is properly  executed and submitted by
any Person respecting any matters arising hereunder.  Neither the Seller nor the
Master Servicer shall be under any obligation to appear in,  prosecute or defend
any legal action  unless such action is related to its  respective  duties under
this  Agreement  and which in its opinion  does not involve it in any expense or
liability;  provided, however, that the Seller or the Master Servicer may in its
discretion  undertake  any such action which it may deem  necessary or desirable
with respect to this  Agreement and the rights and duties of the parties  hereto
and the interests of the Certificateholders  hereunder if the Certificateholders
offer to the  Seller  or the  Master  Servicer,  as the case may be,  reasonable
security or indemnity  against the costs,  expenses and liabilities which may be
incurred therein or thereby. In such event, the legal expenses and costs of such
action  and any  liability  resulting  therefrom  shall be  expenses,  costs and
liabilities of the Trust Estate,  and the Seller or the Master Servicer shall be
entitled to be  reimbursed  therefor out of the  Certificate  Account,  and such
amounts shall,  on the following  Distribution  Date or  Distribution  Dates, be
allocated  in  reduction  of  distributions  on the Class A, Class M and Class B
Certificates  in the same manner as Realized  Losses are  allocated  pursuant to
Section 4.02(a).

Section 6.04.       Resignation of the Master Servicer.

     The Master Servicer shall not resign from the obligations and duties hereby
imposed on it except upon  determination that its duties hereunder are no longer
permissible  under  applicable  law or are in  material  conflict  by  reason of
applicable  law  with  any  other   activities   carried  on  by  it.  Any  such
determination  permitting  the  resignation  of the  Master  Servicer  shall  be
evidenced  by an Opinion of Counsel to such effect  delivered to the Trustee and
the Trust  Administrator.  No such resignation  shall become effective until the
Trustee,  the Trust Administrator or a successor servicer shall have assumed the
Master  Servicer's   responsibilities,   duties,   liabilities  and  obligations
hereunder.

Section 6.05.       Compensation to the Master Servicer.

     The Master Servicer shall be entitled to receive a monthly fee equal to the
Master  Servicing  Fee,  as  compensation  for  services  rendered by the Master
Servicer under this Agreement.  The Master Servicer also will be entitled to any
late reporting fees paid by a Servicer  pursuant to its Servicing  Agreement and
any  investment  income  on funds  on  deposit  in the  Certificate  Account  as
additional compensation.

Section 6.06.       Assignment or Delegation of Duties by Master Servicer.

     The  Master  Servicer  shall not  assign  or  transfer  any of its  rights,
benefits or privileges under this Agreement to any other Person,  or delegate to
or subcontract  with, or authorize or appoint any other Person to perform any of
the duties,  covenants or  obligations  to be  performed by the Master  Servicer
without the prior  written  consent of the Trustee and the Trust  Administrator,
and any agreement,  instrument or act purporting to effect any such  assignment,
transfer,   delegation  or  appointment  shall  be  void.   Notwithstanding  the
foregoing,  the Master  Servicer  shall have the right without the prior written
consent of the Trustee or the Trust  Administrator  (i) to assign its rights and
delegate its duties and obligations hereunder;  provided,  however, that (a) the
purchaser or transferee  accepting such assignment or delegation is qualified to
service mortgage loans for FNMA or FHLMC, is satisfactory to the Trustee and the
Trust Administrator,  in the exercise of its reasonable  judgment,  and executes
and delivers to the Trustee and the Trust  Administrator  an agreement,  in form
and   substance   reasonably   satisfactory   to  the   Trustee  and  the  Trust
Administrator,  which  contains an assumption by such purchaser or transferee of
the due and punctual  performance  and observance of each covenant and condition
to be performed or observed by the Master Servicer  hereunder from and after the
date of such agreement;  and (b) each  applicable  Rating Agency's rating of any
Certificates in effect immediately prior to such assignment, sale or transfer is
not  reasonably  likely to be qualified,  downgraded or withdrawn as a result of
such assignment, sale or transfer and the Certificates are not reasonably likely
to be placed on credit  review  status by any such  Rating  Agency;  and (ii) to
delegate to, subcontract with, authorize,  or appoint an affiliate of the Master
Servicer to perform and carry out any duties,  covenants  or  obligations  to be
performed and carried out by the Master Servicer under this Agreement and hereby
agrees so to delegate, subcontract,  authorize or appoint to an affiliate of the
Master Servicer any duties, covenants or obligations to be performed and carried
out by the  Master  Servicer  to the  extent  that  such  duties,  covenants  or
obligations  are to be  performed  in any state or  states  in which the  Master
Servicer is not authorized to do business as a foreign  corporation but in which
the  affiliate  is so  authorized.  In no case,  however,  shall  any  permitted
assignment  and delegation  relieve the Master  Servicer of any liability to the
Trustee, the Trust Administrator or the Seller under this Agreement, incurred by
it prior to the time that the conditions contained in clause (i) above are met.

Section  6.07.  Indemnification  of Trustee,  Trust  Administrator and Seller by
                Master Servicer.

     The Master  Servicer  shall  indemnify and hold  harmless the Trustee,  the
Trust  Administrator  and the Seller and any director,  officer or agent thereof
against any loss, liability or expense,  including  reasonable  attorney's fees,
arising out of, in connection with or incurred by reason of willful misfeasance,
bad faith or  negligence  in the  performance  of duties of the Master  Servicer
under this Agreement or by reason of reckless  disregard of its  obligations and
duties under this  Agreement.  Any payment  pursuant to this Section made by the
Master Servicer to the Trustee,  the Trust  Administrator or the Seller shall be
from such entity's own funds, without reimbursement  therefor. The provisions of
this Section 6.07 shall survive the termination of this Agreement.


<PAGE>


                                   ARTICLE VII

                                     DEFAULT

Section 7.01.       Events of Default.

     In case  one or more of the  following  Events  of  Default  by the  Master
Servicer shall occur and be continuing, that is to say:

                   (i) any failure by the Master Servicer (a) to remit any funds
         to the Paying Agent as required by Section 4.03 or (b) to distribute or
         cause to be distributed to  Certificateholders  any payment required to
         be made by the Master Servicer under the terms of this Agreement which,
         in either case,  continues  unremedied  for a period of three  business
         days  after  the  date  upon  which  written  notice  of such  failure,
         requiring the same to be remedied,  shall have been given to the Master
         Servicer  by the Trustee or to the Master  Servicer  and the Trustee by
         the holders of  Certificates  evidencing in the aggregate not less than
         25% of the aggregate Voting Interest  represented by all  Certificates;
         or

                  (ii) any  failure on the part of the Master  Servicer  duly to
         observe or perform in any material  respect any other of the  covenants
         or agreements on the part of the Master Servicer in the Certificates or
         in this Agreement  which  continues  unremedied for a period of 60 days
         after the date on which written  notice of such failure,  requiring the
         same to be  remedied,  shall have been given to the Master  Servicer by
         the Trustee,  or to the Master  Servicer and the Trustee by the holders
         of  Certificates  evidencing  in the aggregate not less than 25% of the
         aggregate Voting Interest represented by all Certificates; or

                 (iii) a decree  or order of a court or  agency  or  supervisory
         authority having  jurisdiction in the premises for the appointment of a
         trustee,  conservator,   receiver  or  liquidator  in  any  bankruptcy,
         insolvency,  readjustment of debt, marshaling of assets and liabilities
         or similar  proceedings,  or for the  winding-up or  liquidation of its
         affairs,  shall have been entered  against the Master Servicer and such
         decree or order shall have remained in force  undischarged and unstayed
         for a period of 60 days; or

                  (iv) the Master Servicer shall consent to the appointment of a
         trustee,  conservator,  receiver or liquidator or liquidating committee
         in any  bankruptcy,  insolvency,  readjustment  of debt,  marshaling of
         assets and liabilities, voluntary liquidation or similar proceedings of
         or  relating  to  the  Master  Servicer,  or of or  relating  to all or
         substantially all of its property; or

                   (v) the Master  Servicer shall admit in writing its inability
         to pay its debts  generally as they become due, file a petition to take
         advantage of any applicable  insolvency,  bankruptcy or  reorganization
         statute,  make  an  assignment  for the  benefit  of its  creditors  or
         voluntarily suspend payment of its obligations;

                  (vi) the Master Servicer shall be dissolved,  or shall dispose
         of all or substantially all of its assets; or consolidate with or merge
         into another  entity or shall permit  another  entity to consolidate or
         merge  into  it,  such  that  the  resulting  entity  does not meet the
         criteria for a successor servicer, as specified in Section 6.02 hereof;
         or

                 (vii) the Master Servicer and any  subservicer  appointed by it
         becomes   ineligible  to  service  for  both  FNMA  and  FHMLC,   which
         ineligibility continues unremedied for a period of 90 days.



then, and in each and every such case,  subject to applicable law, so long as an
Event of Default shall not have been remedied, either the Trustee or the holders
of  Certificates  evidencing  in the  aggregate  not  less  than  66 2/3% of the
aggregate Voting Interest represented by all Certificates,  by notice in writing
to the Master Servicer and the Trust  Administrator (and to the Trustee if given
by the  Certificateholders)  may terminate all of the rights and  obligations of
the Master Servicer under this Agreement and in and to the Mortgage  Loans,  but
without  prejudice  to any  rights  which the  Master  Servicer  may have to the
aggregate  Master Servicing Fees due prior to the date of transfer of the Master
Servicer's responsibilities  hereunder,  reimbursement of expenses to the extent
permitted by this  Agreement,  Periodic  Advances and other  advances of its own
funds. Upon receipt by the Master Servicer of such written notice, all authority
and power of the Master Servicer under this  Agreement,  whether with respect to
the Certificates or the Mortgage Loans or otherwise, shall pass to and be vested
in the Trust  Administrator  on behalf of the Trustee pursuant to and under this
Section, subject to the provisions of Section 7.05; and, without limitation, the
Trust  Administrator on behalf of the Trustee is hereby authorized and empowered
to execute and deliver, on behalf of the Master Servicer, as attorney-in-fact or
otherwise, any and all documents and other instruments,  and to do or accomplish
all other acts or things necessary or appropriate to effect the purposes of such
notice of  termination,  whether to complete  the transfer  and  endorsement  or
assignment of the Mortgage Loans and related documents or otherwise.  The Master
Servicer  agrees to cooperate  with the Trust  Administrator  and the Trustee in
effecting the termination of the Master Servicer's  responsibilities  and rights
hereunder  and shall  promptly  provide the Trustee  all  documents  and records
reasonably  requested  by it  to  enable  it to  assume  the  Master  Servicer's
functions  hereunder and shall promptly also transfer to the Trust Administrator
on behalf of the Trustee  all  amounts  which then have been or should have been
deposited  in the  Certificate  Account  by the  Master  Servicer  or which  are
thereafter received by the Master Servicer with respect to the Mortgage Loans.

Section 7.02.       Other Remedies of Trustee.

     During the  continuance  of any Event of Default,  so long as such Event of
Default  shall not have been  remedied,  the Trustee,  in addition to the rights
specified in Section 7.01,  shall have the right,  in its own name as trustee of
an express  trust,  to take all  actions  now or  hereafter  existing at law, in
equity or by statute to enforce  its  rights  and  remedies  and to protect  the
interests,  and  enforce  the rights  and  remedies,  of the  Certificateholders
(including the institution and prosecution of all judicial,  administrative  and
other  proceedings  and the  filing of  proofs  of claim and debt in  connection
therewith).  Except as otherwise expressly provided in this Agreement, no remedy
provided for by this Agreement shall be exclusive of any other remedy,  and each
and every remedy shall be cumulative  and in addition to any other remedy and no
delay or omission to exercise any right or remedy shall impair any such right or
remedy or shall be deemed to be a waiver of any Event of Default.

Section 7.03.       Directions by Certificateholders and
                    Duties of Trustee During Event of Default.

     During the  continuance  of any Event of Default,  Holders of  Certificates
evidencing in the aggregate not less than 25% of the aggregate  Voting  Interest
represented  by all  Certificates  may  direct  the  time,  method  and place of
conducting any proceeding for any remedy available to the Trustee, or exercising
any trust or power conferred upon the Trustee,  under this Agreement;  provided,
however,  that the  Trustee  shall be under no  obligation  to  pursue  any such
remedy,  or to  exercise  any of the  trusts  or  powers  vested  in it by  this
agreement (including, without limitation, (i) the conducting or defending of any
administrative action or litigation hereunder or in relation hereto and (ii) the
terminating  of the Master  Servicer  from its  rights  and  duties as  servicer
hereunder) at the request, order or direction of any of the  Certificateholders,
unless such  Certificateholders  shall have  offered to the  Trustee  reasonable
security or indemnity  against the cost,  expenses and liabilities  which may be
incurred  therein  or  thereby  and,  provided  further,  that,  subject  to the
provisions  of  Section  8.01,  the  Trustee  shall have the right to decline to
follow any such  direction  if the  Trustee,  in  accordance  with an Opinion of
Counsel,  determines  that the action or proceeding so directed may not lawfully
be  taken  or if the  Trustee  in good  faith  determines  that  the  action  or
proceeding  so directed  would  involve it in personal  liability or be unjustly
prejudicial to the nonassenting Certificateholders.

Section 7.04.       Action upon Certain Failures of the
                    Master Servicer and upon Event of Default.

     In the  event  that the  Trustee  or the  Trust  Administrator  shall  have
knowledge of any failure of the Master Servicer  specified in Section 7.01(i) or
(ii) which would become an Event of Default upon the Master  Servicer's  failure
to remedy the same after  notice,  the Trustee or Trust  Administrator  may, but
need not if the Trustee or Trust Administrator, as the case may be, deems it not
in the  Certificateholders'  best  interest,  give notice  thereof to the Master
Servicer. For all purposes of this Agreement, in the absence of actual knowledge
by a  corporate  trust  officer of the Trustee or the Trust  Administrator,  the
Trustee or the Trust  Administrator,  as the case may be, shall not be deemed to
have  knowledge  of any failure of the Master  Servicer as  specified in Section
7.01(i) and (ii) or any Event of Default unless  notified  thereof in writing by
the Master Servicer or by a Certificateholder.

Section 7.05.       Trust Administrator to Act; Appointment of Successor.

     When the Master Servicer receives notice of termination pursuant to Section
7.01 or the Trustee or the Trust  Administrator  receives the resignation of the
Master Servicer evidenced by an Opinion of Counsel pursuant to Section 6.04, the
Trust  Administrator  on behalf of the  Trustee  shall be the  successor  in all
respects to the Master  Servicer in its capacity as master  servicer  under this
Agreement and the  transactions  set forth or provided for herein and shall have
the rights and  powers  and be subject to all the  responsibilities,  duties and
liabilities  relating  thereto  placed on the Master  Servicer  by the terms and
provisions  hereof and in its  capacity  as such  successor  shall have the same
limitation of liability herein granted to the Master Servicer. In the event that
the Trust  Administrator  is  succeeding  to the Master  Servicer  as the Master
Servicer, as compensation therefor, the Trust Administrator shall be entitled to
receive  monthly such portion of the Master  Servicing  Fee,  together with such
other  servicing  compensation  as is  agreed  to at  such  time  by  the  Trust
Administrator  and the Master  Servicer,  but in no event more than 25%  thereof
until the date of final cessation of the Master Servicer's  servicing activities
hereunder.  Notwithstanding  the above, the Trust Administrator may, if it shall
be  unwilling  to so act,  or  shall,  if it is  unable to so act or to obtain a
qualifying  bid as described  below,  appoint,  or petition a court of competent
jurisdiction  to  appoint,  any housing and home  finance  institution,  bank or
mortgage  servicing  institution having a net worth of not less than $10,000,000
and  meeting  such other  standards  for a  successor  servicer as are set forth
herein,  as the successor to the Master Servicer  hereunder in the assumption of
all or any part of the  responsibilities,  duties or  liabilities  of the Master
Servicer  hereunder;  provided,  however,  that  until such a  successor  master
servicer  is  appointed  and  has  assumed  the  responsibilities,   duties  and
liabilities of the Master  Servicer  hereunder,  the Trust  Administrator  shall
continue  as the  successor  to the  Master  Servicer  as  provided  above.  The
compensation of any successor  master servicer so appointed shall not exceed the
compensation   specified  in  Section  6.05  hereof.  In  the  event  the  Trust
Administrator  is  required  to  solicit  bids  as  provided  above,  the  Trust
Administrator shall solicit, by public announcement,  bids from housing and home
finance  institutions,  banks and mortgage  servicing  institutions  meeting the
qualifications  set forth in the  preceding  sentence  for the  purchase  of the
master  servicing  functions.  Such public  announcement  shall specify that the
successor  master  servicer  shall be  entitled to the full amount of the Master
Servicing Fee as compensation together with the other servicing  compensation in
the form of late reporting fees or otherwise as provided in Section 6.05. Within
30 days  after  any such  public  announcement,  the Trust  Administrator  shall
negotiate and effect the sale,  transfer and assignment of the master  servicing
rights and  responsibilities  hereunder to the qualified  party  submitting  the
highest  qualifying  bid.  The Trust  Administrator  shall  deduct all costs and
expenses of any public  announcement and of any sale, transfer and assignment of
the servicing rights and responsibilities hereunder from any sum received by the
Trust Administrator from the successor to the Master Servicer in respect of such
sale, transfer and assignment.  After such deductions, the remainder of such sum
shall be paid by the Trust  Administrator  to the Master Servicer at the time of
such sale, transfer and assignment to the Master Servicer's successor. The Trust
Administrator  and such successor  shall take such action,  consistent with this
Agreement,  as shall be necessary to effectuate any such succession.  The Master
Servicer  agrees to cooperate  with the Trust  Administrator  and any  successor
servicer  in  effecting  the  termination  of the  Master  Servicer's  servicing
responsibilities  and rights  hereunder  and shall  promptly  provide  the Trust
Administrator or such successor master  servicer,  as applicable,  all documents
and  records  reasonably  requested  by it to  enable it to  assume  the  Master
Servicer's  function  hereunder  and shall  promptly  also transfer to the Trust
Administrator  or such successor  master  servicer,  as applicable,  all amounts
which then have been or should have been deposited in the Certificate Account by
the Master Servicer or which are thereafter received by the Master Servicer with
respect to the Mortgage  Loans.  Neither the Trust  Administrator  nor any other
successor  master servicer shall be deemed to be in default  hereunder by reason
of any failure to make, or any delay in making,  any  distribution  hereunder or
any portion thereof caused by (i) the failure of the Master Servicer to deliver,
or  any  delay  in  delivering,  cash,  documents  or  records  to it,  or  (ii)
restrictions  imposed by any regulatory  authority having  jurisdiction over the
Master Servicer.  Notwithstanding  anything to the contrary contained in Section
7.01 above or this Section  7.05,  the Master  Servicer  shall retain all of its
rights and  responsibilities  hereunder,  and no successor  (including the Trust
Administrator)  shall  succeed  thereto,  if  the  assumption  thereof  by  such
successor  would cause the rating  assigned to any  Certificates  to be revoked,
downgraded or placed on credit review status (other than for possible upgrading)
by either Rating Agency and the retention  thereof by the Master  Servicer would
avert such revocation, downgrading or review.

Section 7.06.       Notification to Certificateholders.

     Upon any  termination of the Master  Servicer or appointment of a successor
master servicer,  in each case as provided herein, the Trust Administrator shall
give prompt  written notice thereof to  Certificateholders  at their  respective
addresses appearing in the Certificate  Register.  The Trust Administrator shall
also,  within 45 days after the  occurrence of any Event of Default known to the
Trust Administrator,  give written notice thereof to Certificateholders at their
respective addresses appearing in the Certificate Register, unless such Event of
Default shall have been cured or waived within said 45 day period.


<PAGE>


                                  ARTICLE VIII

               CONCERNING THE TRUSTEE AND THE TRUST ADMINISTRATOR

Section 8.01.       Duties of Trustee and Trust Administrator.

     The  Trustee and the Trust  Administrator,  prior to the  occurrence  of an
Event of Default  and after the  curing of all Events of Default  which may have
occurred,  undertakes  to  perform  such  duties  and only  such  duties  as are
specifically  set  forth in this  Agreement.  In case an Event  of  Default  has
occurred  (which has not been cured),  the Trustee and the Trust  Administrator,
subject to the provisions of Sections 7.01,  7.03, 7.04 and 7.05, shall exercise
such of the rights and powers vested in it by this  Agreement,  and use the same
degree of care and skill in its exercise as a prudent investor would exercise or
use under the circumstances in the conduct of such investor's own affairs.

     The Trustee and the Trust  Administrator,  upon receipt of all resolutions,
certificates,   statements,   opinions,  reports,  documents,  orders  or  other
instruments  furnished  to the  Trustee and the Trust  Administrator,  which are
specifically  required  to be  furnished  pursuant  to  any  provision  of  this
Agreement, shall examine them to determine whether they are in the form required
by  this  Agreement;   provided,   however,  that  the  Trustee  and  the  Trust
Administrator  shall not be  responsible  for the  accuracy  or  content  of any
certificate,  statement,  instrument, report, notice or other document furnished
by the Servicers pursuant to Articles III, IV and IX.

     No  provision of this  Agreement  shall be construed to relieve the Trustee
and the Trust Administrator from liability for its own negligent action, its own
negligent failure to act or its own willful misconduct; provided, however, that:

                   (i) Prior to the  occurrence of an Event of Default and after
         the curing of all such Events of Default which may have  occurred,  the
         duties and obligations of the Trustee and the Trust Administrator shall
         be determined solely by the express  provisions of this Agreement,  the
         Trustee and the Trust  Administrator shall not be liable except for the
         performance  of such duties and  obligations  as are  specifically  set
         forth in this Agreement,  no implied  covenants or obligations shall be
         read  into  this   Agreement   against   the   Trustee  and  the  Trust
         Administrator  and,  in the  absence  of bad  faith  on the part of the
         Trustee  and  the  Trust  Administrator,  the  Trustee  and  the  Trust
         Administrator may conclusively  rely, as to the truth of the statements
         and  the  correctness  of the  opinions  expressed  therein,  upon  any
         certificates  or  opinions  furnished  to the  Trustee  and  the  Trust
         Administrator, and conforming to the requirements of this Agreement;

                  (ii) The  Trustee  and the  Trust  Administrator  shall not be
         personally liable with respect to any action taken, suffered or omitted
         to be taken by it in good faith in  accordance  with the  direction  of
         holders of  Certificates  which evidence in the aggregate not less than
         25% of the Voting Interest represented by all Certificates  relating to
         the time,  method and place of conducting any proceeding for any remedy
         available to the Trustee and the Trust Administrator, or exercising any
         trust or power conferred upon the Trustee and the Trust  Administrator,
         under this Agreement; and

                 (iii)  The  Trustee  and the Trust  Administrator  shall not be
         liable  for any error of  judgment  made in good  faith by any of their
         respective  Responsible  Officers,  unless it shall be proved  that the
         Trustee or the Trust Administrator or such Responsible  Officer, as the
         case may be, was negligent in ascertaining the pertinent facts.

     None of the  provisions  contained  in this  Agreement  shall  require  the
Trustee or the Trust  Administrator to expend or risk its own funds or otherwise
incur  personal  financial  liability  in the  performance  of any of its duties
hereunder  or in the  exercise  of any of its  rights  or  powers  if  there  is
reasonable  ground  for  believing  that  repayment  of such  funds or  adequate
indemnity against such risk or liability is not reasonably assured to it.

Section  8.02.   Certain   Matters   Affecting   the   Trustee   and  the  Trust
                 Administrator.

     Except as otherwise provided in Section 8.01:

                   (i) Each of the Trustee and the Trust  Administrator may rely
         and shall be  protected  in acting or  refraining  from acting upon any
         resolution, Officers' Certificate, certificate of auditors or any other
         certificate,  statement,  instrument, opinion, report, notice, request,
         consent, order, appraisal,  bond or other paper or document believed by
         it to be genuine  and to have been  signed or  presented  by the proper
         party or parties;

                  (ii)  Each of the  Trustee  and the  Trust  Administrator  may
         consult  with  counsel,  and any  Opinion of Counsel  shall be full and
         complete authorization and protection in respect of any action taken or
         suffered  or omitted by it  hereunder  in good faith and in  accordance
         with such Opinion of Counsel;

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

                  (iv)  Each of the  Trustee  and the  Trust  Administrator  may
         execute  any of the trusts or powers  hereunder  or perform  any duties
         hereunder either directly or by or through agents or attorneys.

Section  8.03.  Neither  Trustee  nor  Trust  Administrator   Required  to  Make
                Investigation.

     Prior to the  occurrence  of an Event of  Default  hereunder  and after the
curing of all Events of Default which may have occurred, neither the Trustee nor
the Trust  Administrator shall be bound to make any investigation into the facts
or  matters  stated  in  any  resolution,  certificate,  statement,  instrument,
opinion,  report, notice, request,  consent,  order, appraisal,  bond, Mortgage,
Mortgage Note or other paper or document  (provided the same appears  regular on
its face),  unless  requested  in  writing  to do so by holders of  Certificates
evidencing in the aggregate not less than 51% of the Voting Interest represented
by all Certificates;  provided, however, that if the payment within a reasonable
time to the  Trustee  or the  Trust  Administrator  of the  costs,  expenses  or
liabilities  likely to be incurred by it in the making of such investigation is,
in the opinion of the Trustee or the Trust Administrator, not reasonably assured
to the Trustee or the Trust  Administrator by the security afforded to it by the
terms of this  Agreement,  the  Trustee or the Trust  Administrator  may require
reasonable  indemnity  against  such  expense or  liability as a condition to so
proceeding.  The reasonable expense of every such investigation shall be paid by
the Master Servicer or, if paid by the Trustee or the Trust Administrator, shall
be repaid by the Master Servicer upon demand.

Section  8.04. Neither Trustee nor Trust  Administrator  Liable for Certificates
               or Mortgage Loans.

     The  recitals  contained  herein and in the  Certificates  (other  than the
certificate  of  authentication  on the  Certificates)  shall  be  taken  as the
statements  of the Seller,  and neither the Trustee nor the Trust  Administrator
assumes  responsibility  as to the correctness of the same. The Trustee makes no
representation  for the  correctness  of the same.  Neither  the Trustee nor the
Trust  Administrator  makes any representation as to the validity or sufficiency
of this  Agreement or of the  Certificates  or of any  Mortgage  Loan or related
document.   Subject  to  Section  2.04,   neither  the  Trustee  nor  the  Trust
Administrator  shall be accountable  for the use or application by the Seller of
any of the Certificates or of the proceeds of such Certificates,  or for the use
or  application  of any funds  paid to the  Master  Servicer  in  respect of the
Mortgage Loans deposited into the Certificate Account by the Master Servicer or,
in its capacity as trustee, for investment of any such amounts.

Section 8.05.       Trustee and Trust Administrator May Own Certificates.

     Each of the Trustee,  the Trust Administrator and any agent thereof, in its
individual  or  any  other  capacity,   may  become  the  owner  or  pledgee  of
Certificates  with the same rights it would have if it were not  Trustee,  Trust
Administrator or such agent.

Section 8.06.       The Master Servicer to Pay Fees and Expenses.

     The Master Servicer  covenants and agrees to pay to each of the Trustee and
the Trust Administrator from time to time, and each of the Trustee and the Trust
Administrator shall be entitled to receive, reasonable compensation (which shall
not be  limited  by any  provision  of law in  regard to the  compensation  of a
trustee of an express trust) for all services rendered by it in the execution of
the trusts  hereby  created and in the  exercise and  performance  of any of the
powers and duties  hereunder of the Trustee or the Trust  Administrator,  as the
case may be, and the Master  Servicer  will pay or reimburse  the Trustee or the
Trust  Administrator,  as the case may be, upon its  request for all  reasonable
expenses,  disbursements  and advances incurred or made by it in accordance with
any of the provisions of this Agreement  (including the reasonable  compensation
and the  expenses  and  disbursements  of its  counsel  and of all  persons  not
regularly in its employ)  except any such expense,  disbursement,  or advance as
may arise from its negligence or bad faith.

Section 8.07.       Eligibility Requirements.

     Each of the  Trustee  and the Trust  Administrator  hereunder  shall at all
times (i) be a corporation or association having its principal office in a state
and city  acceptable to the Seller,  organized and doing business under the laws
of such state or the United  States of  America,  authorized  under such laws to
exercise  corporate  trust powers,  having a combined  capital and surplus of at
least $50,000,000,  or shall be a member of a bank holding system, the aggregate
combined capital and surplus of which is at least $50,000,000, provided that its
separate capital and surplus shall at all times be at least the amount specified
in Section  310(a)(2)  of the Trust  Indenture  Act of 1939,  (ii) be subject to
supervision or examination by federal or state authority and (iii) have a credit
rating or be otherwise  acceptable  to the Rating  Agencies such that neither of
the Rating  Agencies would reduce their  respective  then current ratings of the
Certificates  (or have provided such security from time to time as is sufficient
to avoid such reduction) as evidenced in writing by each Rating Agency.  If such
corporation or  association  publishes  reports of condition at least  annually,
pursuant to law or to the requirements of the aforesaid supervising or examining
authority,  then for the  purposes  of this  Section  the  combined  capital and
surplus of such  corporation or  association  shall be deemed to be its combined
capital  and  surplus as set forth in its most  recent  report of  condition  so
published.  In case at any time the  Trustee  or the Trust  Administrator  shall
cease to be eligible in accordance  with the  provisions  of this Section,  such
entity shall resign  immediately in the manner and with the effect  specified in
Section 8.08.

Section 8.08.       Resignation and Removal.

     Either of the Trustee or the Trust Administrator may at any time resign and
be  discharged  from the  trust  hereby  created  by  giving  written  notice of
resignation to the Master  Servicer,  such  resignation to be effective upon the
appointment of a successor  trustee.  Upon receiving such notice of resignation,
the  Master  Servicer  shall  promptly  appoint a  successor  trustee by written
instrument, in duplicate, one copy of which instrument shall be delivered to the
resigning  entity and one copy to its successor.  If no successor  trustee shall
have been  appointed  and have  accepted  appointment  within 30 days  after the
giving  of  such  notice  of  resignation,   the  resigning   Trustee  or  Trust
Administrator,  as the  case  may  be,  may  petition  any  court  of  competent
jurisdiction for the appointment of a successor trustee or trust administrator.

     If at any time the  Trustee or the Trust  Administrator  shall  cease to be
eligible in  accordance  with the  provisions  of Section 8.07 and shall fail to
resign after written request for its resignation by the Master  Servicer,  or if
at any time the Trustee or the Trust  Administrator  shall  become  incapable of
acting,  or an order for relief  shall have been  entered in any  bankruptcy  or
insolvency  proceeding with respect to such entity, or a receiver of such entity
or of its property  shall be appointed,  or any public officer shall take charge
or  control of the  Trustee or the Trust  Administrator  or of the  property  or
affairs  of  the  Trustee  or  the  Trust   Administrator  for  the  purpose  of
rehabilitation,  conversion or liquidation, or the Master Servicer shall deem it
necessary  in order to  change  the  situs of the  Trust  Estate  for  state tax
reasons,  then the Master  Servicer  shall  remove the Trustee  and/or the Trust
Administrator,  as the case may be,  and  appoint  a  successor  trustee  and/or
successor trust administrator by written instrument,  in duplicate,  one copy of
which  instrument  shall be delivered to the Trustee or Trust  Administrator  so
removed and one copy to the successor trustee or successor trust  administrator,
as the case may be.

     The Holders of  Certificates  evidencing in the aggregate not less than 51%
of the  Voting  Interests  represented  by all  Certificates  (except  that  any
Certificate  registered  in the name of the Seller,  the Master  Servicer or any
affiliate  thereof  will not be taken into  account in  determining  whether the
requisite Voting Interests has been obtained) may at any time remove the Trustee
and/or the Trust  Administrator and appoint a successor by written instrument or
instruments,  in triplicate,  signed by such holders or their  attorneys-in-fact
duly authorized, one complete set of which instruments shall be delivered to the
Master  Servicer,  one complete set of which shall be delivered to the entity or
entities so removed and one  complete  set of which  shall be  delivered  to the
successor so appointed.

     Any  resignation or removal of the Trustee or the Trust  Administrator  and
appointment  of a successor  pursuant to any of the  provisions  of this Section
shall become  effective  upon  acceptance  of  appointment  by the  successor as
provided in Section 8.09.

Section 8.09.       Successor.

     Any  successor  trustee  or  successor  trust  administrator  appointed  as
provided in Section 8.08 shall  execute,  acknowledge  and deliver to the Master
Servicer and to its predecessor trustee or trust administrator,  as the case may
be, an  instrument  accepting  such  appointment  hereunder,  and  thereupon the
resignation or removal of the predecessor  trustee or trust  administrator shall
become  effective,  and  such  successor,  without  any  further  act,  deed  or
reconveyance,  shall become fully vested with all the rights, powers, duties and
obligations  of its  predecessor  hereunder,  with like effect as if  originally
named as  trustee  or trust  administrator,  as the  case  may be,  herein.  The
predecessor  trustee or trust  administrator  shall deliver to its successor all
Owner  Mortgage  Loan Files and  related  documents  and  statements  held by it
hereunder  (other  than any  Owner  Mortgage  Loan  Files at the time  held by a
Custodian,  which  Custodian  shall  become the agent of any  successor  trustee
hereunder), and the Seller, the Master Servicer and the predecessor entity shall
execute and deliver such  instruments and do such other things as may reasonably
be required for more fully and certainly vesting and confirming in the successor
trustee or successor trust  administrator,  as the case may be, all such rights,
powers,  duties and  obligations.  No  successor  shall  accept  appointment  as
provided in this Section  unless at the time of such  acceptance  such successor
shall be eligible under the provisions of Section 8.07

     Upon  acceptance of appointment by a successor as provided in this Section,
the Master Servicer shall mail notice of the succession of such trustee or trust
administrator  hereunder to all Holders of  Certificates  at their  addresses as
shown in the  Certificate  Register.  If the Master  Servicer fails to mail such
notice  within  ten days  after  acceptance  of the  successor  trustee or trust
administrator,  as the case may be, the successor trustee or trust administrator
shall cause such notice to be mailed at the expense of the Master Servicer.

Section 8.10.       Merger or Consolidation.

     Any Person into which either the Trustee or the Trust  Administrator may be
merged or converted or with which it may be  consolidated,  to which it may sell
or transfer its corporate trust business and assets as a whole or  substantially
as a whole or any Person resulting from any merger, sale,  transfer,  conversion
or  consolidation  to which the  Trustee or the Trust  Administrator  shall be a
party,  or any Person  succeeding  to the business of such entity,  shall be the
successor of the Trustee or Trust Administrator,  as the case may be, hereunder;
provided,  however,  that (i) such Person shall be eligible under the provisions
of Section 8.07, without the execution or filing of any paper or any further act
on the  part of any of the  parties  hereto,  anything  herein  to the  contrary
notwithstanding,  and (ii) the Trustee or the Trust  Administrator,  as the case
may be,  shall  deliver  an  Opinion  of  Counsel  to the  Seller and the Master
Servicer to the effect that such merger,  consolidation,  sale or transfer  will
not subject  either the  Upper-Tier  REMIC or the  Lower-Tier  REMIC to federal,
state or local tax or cause either the Upper-Tier  REMIC or the Lower-Tier REMIC
to fail to qualify  as a REMIC,  which  Opinion of Counsel  shall be at the sole
expense of the Trustee or the Trust Administrator, as the case may be.

Section 8.11.       Authenticating Agent.

     The Trust Administrator may appoint an Authenticating Agent, which shall be
authorized  to act  on  behalf  of the  Trust  Administrator  in  authenticating
Certificates. Wherever reference is made in this Agreement to the authentication
of  Certificates  by  the  Trust  Administrator  or  the  Trust  Administrator's
countersignature,  such reference shall be deemed to include  authentication  on
behalf of the Trust Administrator by the Authenticating  Agent and a certificate
of  authentication  executed  on  behalf  of  the  Trust  Administrator  by  the
Authenticating  Agent. The Authenticating Agent must be acceptable to the Seller
and the Master  Servicer and must be a corporation  organized and doing business
under  the laws of the  United  States  of  America  or of any  state,  having a
principal  office and place of  business in a state and city  acceptable  to the
Seller and the Master  Servicer,  having a combined  capital  and  surplus of at
least $15,000,000, authorized under such laws to do a trust business and subject
to supervision or examination by federal or state authorities.

     Any  corporation  into  which  the  Authenticating  Agent  may be merged or
converted or with which it may be  consolidated,  or any  corporation  resulting
from any merger,  conversion or consolidation to which the Authenticating  Agent
shall be a party, or any corporation succeeding to the corporate agency business
of the  Authenticating  Agent,  shall be the  Authenticating  Agent  without the
execution  or filing of any  paper or any  further  act on the part of the Trust
Administrator or the Authenticating Agent.

     The Authenticating Agent may at any time resign by giving at least 30 days'
advance written notice of resignation to the Trustee,  the Trust  Administrator,
the Seller  and the Master  Servicer.  The Trust  Administrator  may at any time
terminate  the  agency  of the  Authenticating  Agent by giving  written  notice
thereof to the  Authenticating  Agent, the Seller and the Master Servicer.  Upon
receiving a notice of resignation or upon such a termination,  or in case at any
time the Authenticating  Agent shall cease to be eligible in accordance with the
provisions of this Section 8.11, the Trust Administrator  promptly shall appoint
a  successor  Authenticating  Agent,  which  shall be  acceptable  to the Master
Servicer,  and shall give written notice of such appointment to the Seller,  and
shall mail notice of such appointment to all  Certificateholders.  Any successor
Authenticating  Agent upon acceptance of its appointment  hereunder shall become
vested  with  all  the  rights,  powers,  duties  and  responsibilities  of  its
predecessor hereunder, with like effect as if originally named as Authenticating
Agent  herein.  No  successor  Authenticating  Agent shall be  appointed  unless
eligible under the provisions of this Section 8.11.

     The Authenticating  Agent shall have no responsibility or liability for any
action  taken by it as such at the  direction  of the Trust  Administrator.  Any
reasonable compensation paid to the Authenticating Agent shall be a reimbursable
expense under Section 8.06.

Section 8.12.       Separate Trustees and Co-Trustees.

     The  Trustee  shall have the power from time to time to appoint one or more
persons or corporations  to act either as co-trustees  jointly with the Trustee,
or as separate  trustees,  for the purpose of holding title to,  foreclosing  or
otherwise  taking  action with  respect to any  Mortgage  Loan outside the state
where the Trustee  has its  principal  place of  business,  where such  separate
trustee or  co-trustee  is necessary or advisable  (or the Trustee is advised by
the Master  Servicer  that such  separate  trustee or co-trustee is necessary or
advisable) under the laws of any state in which a Mortgaged  Property is located
or for the purpose of otherwise conforming to any legal requirement, restriction
or  condition  in any state in which a  Mortgaged  Property is located or in any
state in which any portion of the Trust Estate is located.  The Master  Servicer
shall advise the Trustee when, in its good faith opinion,  a separate trustee or
co-trustee  is necessary or advisable  as  aforesaid.  The separate  trustees or
co-trustees  so  appointed  shall  be  trustees  for the  benefit  of all of the
Certificateholders  and shall have such powers,  rights and remedies as shall be
specified in the  instrument of  appointment;  provided,  however,  that no such
appointment  shall, or shall be deemed to,  constitute the appointee an agent of
the  Trustee.  The  Seller  and the  Master  Servicer  shall  join  in any  such
appointment,  but such joining shall not be necessary for the  effectiveness  of
such appointment.

     Every separate  trustee and co-trustee  shall,  to the extent  permitted by
law, be appointed and act subject to the following provisions and conditions:

                  (i) all powers, duties,  obligations and rights conferred upon
         the Trustee,  in respect of the receipt,  custody and payment of moneys
         shall be exercised solely by the Trustee;

                  (ii)  all  other  rights,   powers,   duties  and  obligations
         conferred  or imposed  upon the Trustee  shall be  conferred or imposed
         upon and  exercised  or  performed  by the  Trustee  and such  separate
         trustee or co-trustee jointly,  except to the extent that under any law
         of any  jurisdiction  in  which  any  particular  act or acts are to be
         performed  (whether as Trustee  hereunder or as successor to the Master
         Servicer  hereunder) the Trustee shall be incompetent or unqualified to
         perform such act or acts,  in which event such rights,  powers,  duties
         and obligations  (including the holding of title to the Trust Estate or
         any portion  thereof in any such  jurisdiction)  shall be exercised and
         performed by such separate trustee or co-trustee;

                  (iii) no separate  trustee or  co-trustee  hereunder  shall be
         personally  liable  by  reason  of any  act or  omission  of any  other
         separate trustee or co-trustee hereunder; and

                  (iv) the Trustee may at any time accept the  resignation of or
         remove any separate  trustee or  co-trustee so appointed by it, if such
         resignation  or  removal  does  not  violate  the  other  terms of this
         Agreement.

     Any notice,  request or other  writing given to the Trustee shall be deemed
to have been given to each of the then  separate  trustees and  co-trustees,  as
effectively  as if  given  to each of  them.  Every  instrument  appointing  any
separate trustee, co-trustee, or custodian shall refer to this Agreement and the
conditions  of this  Article.  Each separate  trustee and  co-trustee,  upon its
acceptance of the trusts conferred, shall be vested with the estates or property
specified in its instrument of appointment,  either jointly with the Trustee, or
separately,  as may be provided  therein,  subject to all the provisions of this
Agreement,  specifically including every provision of this Agreement relating to
the conduct of,  affecting  the liability  of, or affording  protection  to, the
Trustee. Every such instrument shall be furnished to the Trustee.

     Any separate trustee, co-trustee, or custodian may, at any time, constitute
the Trustee,  its agent or attorney-in-fact,  with full power and authority,  to
the extent not  prohibited  by law,  to do any lawful act under or in respect of
this  Agreement  on its  behalf  and in its name.  If any  separate  trustee  or
co-trustee shall die, become incapable of acting,  resign or be removed,  all of
its  estates,  properties,  rights,  remedies  and  trusts  shall vest in and be
exercised by the Trustee to the extent permitted by law, without the appointment
of a new or successor trustee.

     No separate  trustee or co-trustee  hereunder shall be required to meet the
terms of eligibility as a successor  trustee under Section 8.07 hereunder and no
notice to  Certificateholders of the appointment thereof shall be required under
Section 8.09 hereof.

     The  Trustee  agrees to  instruct  its  co-trustees,  if any, to the extent
necessary to fulfill such entity's obligations hereunder.

     The  Master   Servicer  shall  pay  the  reasonable   compensation  of  the
co-trustees to the extent,  and in accordance  with the standards,  specified in
Section 8.06 hereof.

Section 8.13.       Appointment of Custodians.

     The Trust  Administrator may at any time on or after the Closing Date, with
the  consent  of the  Master  Servicer  and  the  Seller,  appoint  one or  more
Custodians  to hold all or a portion of the Owner  Mortgage  Loan Files as agent
for the Trust Administrator,  by entering into a Custodial Agreement. Subject to
this Article VIII,  the Trust  Administrator  agrees to comply with the terms of
each Custodial Agreement and to enforce the terms and provisions thereof against
the Custodian for the benefit of the Certificateholders. Each Custodian shall be
a depository  institution  subject to supervision by federal or state authority,
shall have a combined  capital and surplus of at least  $10,000,000 and shall be
qualified  to do  business  in the  jurisdiction  in which it  holds  any  Owner
Mortgage Loan File. Each Custodial  Agreement may be amended only as provided in
Section 10.01(a).

Section 8.14.       Tax Matters; Compliance with REMIC Provisions.

     (a) Each of the Trustee,  the Trust  Administrator  and the Master Servicer
covenants  and agrees  that it shall  perform its duties  hereunder  in a manner
consistent with the REMIC  Provisions and shall not knowingly take any action or
fail to take any action  that would (i)  affect the  determination  of the Trust
Estate's  status as two separate  REMICs;  or (ii) cause the  imposition  of any
federal, state or local income,  prohibited  transaction,  contribution or other
tax on either the Upper-Tier  REMIC,  the Lower-Tier  REMIC or the Trust Estate.
The Master Servicer, or, in the case of the execution of any tax return or other
action required by law to be performed directly by the Trust Administrator,  the
Trust Administrator,  shall (i) prepare or cause to be prepared, timely cause to
be  signed  by the  Trustee  and file or cause to be filed  annual  federal  and
applicable  state and local income tax returns for each of the Upper-Tier  REMIC
and the  Lower-Tier  REMIC  using a calendar  year as the  taxable  year and the
accrual method of accounting;  (ii) in the first such federal tax returns, make,
or  cause  to be  made,  elections  satisfying  the  requirements  of the  REMIC
Provisions, on behalf of the Trust Estate, to treat each of the Upper-Tier REMIC
and the  Lower-Tier  REMIC as a REMIC;  (iii) prepare,  execute and forward,  or
cause to be prepared,  executed and  forwarded,  to the  Certificateholders  all
information reports or tax returns required with respect to the Trust Estate, as
and when required to be provided to the Certificateholders,  and to the Internal
Revenue  Service  and  any  other  relevant  governmental  taxing  authority  in
accordance with the REMIC Provisions and any other applicable federal,  state or
local  laws,  including  without  limitation  information  reports  relating  to
"original  issue  discount"  and "market  discount" as defined in the Code based
upon the issue  prices,  prepayment  assumption  and cash flows  provided by the
Seller to the Trust Administrator and calculated on a monthly basis by using the
issue price of the Certificates;  (iv) make available  information necessary for
the  application  of any tax imposed on  transferors  of residual  interests  to
"disqualified  organizations"  (as  defined in the REMIC  Provisions);  (v) file
Forms SS-4 and 8811 and  respond to  inquiries  by  Certificateholders  or their
nominees concerning  information returns,  reports or tax returns; (vi) maintain
(or cause to be  maintained  by the  Servicers)  such  records  relating  to the
Upper-Tier  REMIC and the  Lower-Tier  REMIC,  including  but not limited to the
income, expenses, individual Mortgage Loans (including REO Mortgage Loans, other
assets and  liabilities  of each REMIC,  and the fair market  value and adjusted
basis of the  property  of each REMIC  determined  at such  intervals  as may be
required by the Code,  as may be necessary to prepare the  foregoing  returns or
information reports; (vii) exercise reasonable care not to allow the creation of
any  "interests" in either the Upper-Tier  REMIC or the Lower-Tier  REMIC within
the  meaning  of  Code  Section  860D(a)(2)  other  than  the  interests  in the
Upper-Tier REMIC  represented by the Class A-1, Class A-2, Class A-3, Class A-4,
Class  A-5,  Class  A-6,  Class  A-7,  Class  A-8,  Class  A-PO  and  Class  A-R
Certificates,  the Class M Certificates and the Class B-l, Class B-2, Class B-3,
Class B-4 and Class B-5  Certificates  and the interests in the Lower-Tier REMIC
represented by the Class A-L1,  Class A-L2,  Class A-L3, Class A-L4, Class A-L6,
Class A-LPO,  Class A-LUR, Class B-L1, Class B-L2, Class B-L3, Class B-L4, Class
B-L5 and Class M-L Interests  and the Class A-LR  Certificate;  (viii)  exercise
reasonable  care not to allow the  occurrence of any  "prohibited  transactions"
within the meaning of Code Section  860F(a),  unless the Master  Servicer  shall
have  provided an Opinion of Counsel to the Trustee and the Trust  Administrator
that such  occurrence  would not (a)  result in a taxable  gain,  (b)  otherwise
subject either the Upper-Tier  REMIC or Lower-Tier  REMIC or the Trust Estate to
tax or (c) cause the Trust  Estate to fail to  qualify as two  separate  REMICs;
(ix) exercise  reasonable  care not to allow either the Upper-Tier  REMIC or the
Lower-Tier  REMIC to receive  income  from the  performance  of services or from
assets not permitted under the REMIC  Provisions to be held by a REMIC;  (x) pay
(on behalf of the Upper-Tier  REMIC or the  Lower-Tier  REMIC) the amount of any
federal income tax, including, without limitation, prohibited transaction taxes,
taxes  on  net  income  from   foreclosure   property,   and  taxes  on  certain
contributions  to a REMIC after the Startup Day, imposed on the Upper-Tier REMIC
or Lower-Tier  REMIC,  as the case may be, when and as the same shall be due and
payable (but such obligation  shall not prevent the Master Servicer or any other
appropriate  Person from contesting any such tax in appropriate  proceedings and
shall not prevent the Master Servicer from withholding or depositing  payment of
such tax, if permitted  by law,  pending the outcome of such  proceedings);  and
(xi) if  required  or  permitted  by the Code and  applicable  law,  act as "tax
matters  person" for the  Upper-Tier  REMIC or the  Lower-Tier  REMIC within the
meaning of Treasury Regulations Section 1.860F-4(d),  and the Master Servicer is
hereby  designated  as agent of the Class A-R and Class A-LR  Certificateholders
for such purpose (or if the Master Servicer is not so permitted,  the Holders of
the  Class A-R and Class  A-LR  Certificates  shall be tax  matters  persons  in
accordance with the REMIC Provisions).  The Master Servicer shall be entitled to
be  reimbursed  pursuant  to Section  3.02 for any taxes paid by it  pursuant to
clause (x) of the preceding  sentence,  except to the extent that such taxes are
imposed as a result of the bad faith, willful misfeasance or gross negligence of
the Master Servicer in the performance of its obligations hereunder. The Trustee
shall sign the tax  returns  referred  to in clause (i) of the second  preceding
sentence. In order to enable the Master Servicer, the Trust Administrator or the
Trustee,  as the case may be, to  perform  its  duties as set forth  above,  the
Seller shall provide, or cause to be provided, to the Master Servicer within ten
days after the Closing  Date all  information  or data that the Master  Servicer
determines to be relevant for tax purposes to the valuations and offering prices
of the Certificates, including, without limitation, the price, yield, prepayment
assumption and projected  cash flows of each Class and Subclass of  Certificates
and the Mortgage Loans in the aggregate. Thereafter, the Seller shall provide to
the Master Servicer, the Trust Administrator or the Trustee, as the case may be,
promptly upon request therefor, any such additional information or data that the
Master Servicer, the Trust Administrator or the Trustee, as the case may be, may
from time to time, request in order to enable the Master Servicer to perform its
duties as set forth above.  The Seller hereby  indemnifies the Master  Servicer,
the Trust  Administrator  or the  Trustee,  as the case may be, for any  losses,
liabilities,  damages,  claims or  expenses  of the Master  Servicer,  the Trust
Administrator or the Trustee arising from any errors or  miscalculations  by the
Master Servicer, the Trust Administrator or the Trustee pursuant to this Section
that  result  from any  failure  of the  Seller  to  provide,  or to cause to be
provided,  accurate  information  or  data to the  Master  Servicer,  the  Trust
Administrator or the Trustee,  as the case may be, on a timely basis. The Master
Servicer hereby indemnifies the Seller, the Trust  Administrator and the Trustee
for any losses,  liabilities,  damages,  claims or  expenses of the Seller,  the
Trust  Administrator or the Trustee arising from the Master  Servicer's  willful
misfeasance,  bad faith or gross  negligence  in  preparing  any of the federal,
state and local tax returns of the REMIC as described  above.  In the event that
the Trust Administrator prepares any of the federal, state and local tax returns
of the REMIC as described above, the Trust Administrator  hereby indemnifies the
Seller,  the  Master  Servicer  and the  Trustee  for any  losses,  liabilities,
damages,  claims or expenses of the Seller,  the Master  Servicer or the Trustee
arising  from  the  Trust  Administrator's  willful  misfeasance,  bad  faith or
negligence in connection with such preparation.

     (b) Notwithstanding anything in this Agreement to the contrary, each of the
Master Servicer,  the Trust Administrator and the Trustee shall pay from its own
funds,  without any right of  reimbursement  therefor,  the amount of any costs,
liabilities  and  expenses  incurred  by the Trust  Estate  (including,  without
limitation,  any and all federal,  state or local taxes, including taxes imposed
on "prohibited  transactions" within the meaning of the REMIC Provisions) if and
to the extent that such costs,  liabilities and expenses arise from a failure of
the Master  Servicer,  the Trust  Administrator  or the  Trustee to perform  its
obligations under this Section 8.14.

Section 8.15.       Monthly Advances.

     In the  event  that  Norwest  Mortgage  fails  to make a  Periodic  Advance
required to be made pursuant to the Norwest Servicing Agreement on or before the
Distribution  Date,  the Trust  Administrator  shall make a Periodic  Advance as
required by Section  3.03 hereof;  provided,  however,  the Trust  Administrator
shall not be required to make such Periodic  Advances if prohibited by law or if
it determines that such Periodic Advance would be a Nonrecoverable Advance. With
respect  to those  Periodic  Advances  which  should  have been made by  Norwest
Mortgage,  the  Trust  Administrator  shall be  entitled,  pursuant  to  Section
3.02(a)(i),  (ii) or (v) hereof,  to be reimbursed from the Certificate  Account
for Periodic Advances and Nonrecoverable Advances made by it.


<PAGE>


                                   ARTICLE IX

                                   TERMINATION

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

     Subject to Section 9.02, the respective obligations and responsibilities of
the Seller, the Master Servicer, the Trust Administrator and the Trustee created
hereby  (other than the  obligation of the Trust  Administrator  to make certain
payments  after  the  Final  Distribution  Date  to  Certificateholders  and the
obligation of the Master  Servicer to send certain  notices as  hereinafter  set
forth and the tax  reporting  obligations  under  Sections 4.05 and 8.14 hereof)
shall  terminate  upon  the  last  action  required  to be  taken  by the  Trust
Administrator  on the  Final  Distribution  Date  pursuant  to this  Article  IX
following  the earlier of (i) the purchase by the Seller of all  Mortgage  Loans
and all property acquired in respect of any Mortgage Loan remaining in the Trust
Estate at a price equal to the sum of (x) 100% of the unpaid  principal  balance
of each  Mortgage  Loan  (other  than any REO  Mortgage  Loan)  as of the  Final
Distribution  Date,  and (y) the fair  market  value of the  Mortgaged  Property
related to any REO Mortgage Loan (as determined by the Master Servicer as of the
close of business on the third  Business Day next  preceding the date upon which
notice of any such  termination is furnished to  Certificateholders  pursuant to
the third paragraph of this Section 9.01),  plus any accrued and unpaid interest
through the last day of the month  preceding  the month of such  purchase at the
applicable Mortgage Interest Rate less any Fixed Retained Yield on each Mortgage
Loan  (including  any REO  Mortgage  Loan) and (ii) the final  payment  or other
liquidation  (or any advance with  respect  thereto) of the last  Mortgage  Loan
remaining in the Trust Estate  (including  for this purpose the discharge of any
Mortgagor  under a defaulted  Mortgage Loan on which a Servicer is not obligated
to foreclose due to environmental impairment) or the disposition of all property
acquired upon  foreclosure  or deed in lieu of foreclosure of any Mortgage Loan;
provided,  however,  that in no event shall the trust  created  hereby  continue
beyond the  expiration  of 21 years from the death of the last  survivor  of the
descendants  of Joseph P. Kennedy,  the late  ambassador of the United States to
the Court of St. James, living on the date hereof.

     The right of the  Seller to  purchase  all the  assets of the Trust  Estate
pursuant to clause (i) of the  preceding  paragraph  are subject to Section 9.02
and conditioned upon the Pool Scheduled  Principal Balance of the Mortgage Loans
as of the  Final  Distribution  Date  being  less than the  amount  set forth in
Section 11.24. In the case of any purchase by the Seller pursuant to said clause
(i),  the Seller  shall  provide to the Trust  Administrator  the  certification
required by Section 3.04 and the Trust  Administrator  and the Custodian  shall,
promptly  following  payment of the  purchase  price,  release to the Seller the
Owner Mortgage Loan Files pertaining to the Mortgage Loans being purchased.

     Notice of any termination,  specifying the Final  Distribution  Date (which
shall be a date that  would  otherwise  be a  Distribution  Date) upon which the
Certificateholders  may surrender their Certificates to the Trust  Administrator
for payment of the final distribution and cancellation,  shall be given promptly
by the Master  Servicer (if it is exercising its right to purchase the assets of
the Trust Estate) or by the Trust Administrator (in any other case) by letter to
Certificateholders  mailed not earlier than the 15th day of the month  preceding
the month of such final distribution and not later than the twentieth day of the
month of such final distribution specifying (A) the Final Distribution Date upon
which  final  payment of the  Certificates  will be made upon  presentation  and
surrender  of  Certificates  at the office or agency of the Trust  Administrator
therein  designated,  (B) the amount of any such final  payment and (C) that the
Record Date otherwise  applicable to such  Distribution  Date is not applicable,
payments  being made (except in the case of any Class A Certificate  surrendered
on a prior  Distribution  Date pursuant to Section 4.01) only upon  presentation
and  surrender  of the  Certificates  at  the  office  or  agency  of the  Trust
Administrator  therein  specified.  If the Master  Servicer is obligated to give
notice to  Certificateholders  as  aforesaid,  it shall give such  notice to the
Trust  Administrator  and the  Certificate  Registrar at the time such notice is
given to  Certificateholders.  In the event  such  notice is given by the Master
Servicer,  the Master  Servicer shall deposit in the  Certificate  Account on or
before the Final  Distribution  Date in  immediately  available  funds an amount
equal to the purchase price for the assets of the Trust Estate computed as above
provided.  Failure to give notice of termination  as described  herein shall not
entitle a  Certificateholder  to any interest beyond the interest payable on the
Final Distribution Date.

     Upon   presentation   and   surrender  of  the   Certificates,   the  Trust
Administrator shall cause to be distributed to  Certificateholders  on the Final
Distribution  Date in proportion  to their  respective  Percentage  Interests an
amount equal to (i) as to the Subclasses of Class A Certificates, the respective
Class A Subclass  Principal  Balance  together with any related Class A Subclass
Unpaid  Interest  Shortfall  and one month's  interest in an amount equal to the
respective  Class A Subclass  Interest  Accrual  Amount,  (ii) as to the Class M
Certificates,  the Class M Principal  Balance  together with any related Class M
Unpaid Interest  Shortfall and one month's  interest at the Class M Pass-Through
Rate on the Class M Principal  Balance,  (iii) as to the  Subclasses  of Class B
Certificates,  the respective Class B Subclass  Principal  Balance together with
any related Class B Subclass Unpaid Interest  Shortfall and one month's interest
in an amount equal to the respective  Class B Subclass  Interest  Accrual Amount
and (iv) as to the Class A-R and Class A-LR Certificates,  the amounts,  if any,
which  remain  on  deposit  in  the  Upper-Tier   Certificate  Account  and  the
Certificate  Account,  respectively (other than amounts retained to meet claims)
after  application  pursuant to clauses (i), (ii) and (iii) above and payment to
the Master Servicer of any amounts it is entitled as  reimbursement or otherwise
hereunder. Such amount shall be distributed in respect of interest and principal
in respect of the  Uncertificated  Lower-Tier  Interests  in the same amounts as
distributed  to their  Corresponding  Upper-Tier  Class or Classes in the manner
specified in Section  4.01(a)(ii).  Notwithstanding the foregoing,  if the price
paid pursuant to clause (i) of the first  paragraph of this Section 9.01,  after
reimbursement to the Servicers,  the Master Servicer and the Trust Administrator
of any Periodic  Advances,  is insufficient to pay in full the amounts set forth
in clauses  (i),  (ii) and (iii) of this  paragraph,  then any  shortfall in the
amount  available for distribution to  Certificateholders  shall be allocated in
reduction of the amounts otherwise  distributable on the Final Distribution Date
in the same manner as Realized Losses are allocated pursuant to Sections 4.02(b)
and 4.02(g) hereof. Such distribution on the Final Distribution Date shall be in
lieu of the distribution otherwise required to be made on such Distribution Date
in respect of each Class of Certificates.

     In the event that all of the  Certificateholders  shall not surrender their
Certificates  for final payment and  cancellation  within three months following
the Final  Distribution Date, the Trust  Administrator  shall on such date cause
all  funds,  if  any,  in the  Certificate  Account  not  distributed  in  final
distribution to Certificateholders to be withdrawn therefrom and credited to the
remaining  Certificateholders  by  depositing  such funds in a  separate  escrow
account for the benefit of such Certificateholders,  and the Master Servicer (if
it exercised  its right to purchase the assets of the Trust Estate) or the Trust
Administrator  (in any other  case)  shall give a second  written  notice to the
remaining  Certificateholders  to surrender their  Certificates for cancellation
and receive the final distribution with respect thereto.  If within three months
after the second notice all the Certificates shall not have been surrendered for
cancellation, the Trust Administrator may take appropriate steps, or may appoint
an agent to take appropriate steps, to contact the remaining  Certificateholders
concerning  surrender of their Certificates,  and the cost thereof shall be paid
out of the funds on deposit in such escrow account.

Section 9.02.       Additional Termination Requirements.

     In the event of a termination  of the Trust Estate upon the exercise by the
Seller of its  purchase  option as provided in Section  9.01,  the Trust  Estate
shall be terminated in accordance  with the following  additional  requirements,
unless the Trust  Administrator has received an Opinion of Counsel to the effect
that  any  other  manner  of  termination   (i)  will  constitute  a  "qualified
liquidation"   of  the  Trust   Estate   within  the  meaning  of  Code  Section
860F(a)(4)(A)  and (ii) will not  subject  either  the  Upper-Tier  REMIC or the
Lower-Tier  REMIC to federal tax or cause the Trust Estate to fail to qualify as
two separate REMICs at any time that any Certificates are outstanding:

                   (i) The notice  given by the Master  Servicer  under  Section
         9.01 shall provide that such notice  constitutes the adoption of a plan
         of complete liquidation of the Upper-Tier REMIC and Lower-Tier REMIC as
         of the date of such notice (or, if earlier, the date on which the first
         such notice is mailed to Certificateholders). The Master Servicer shall
         also specify such date in a statement attached to the final tax returns
         of the Upper-Tier REMIC and Lower-Tier REMIC; and

                  (ii)  At or  after  the  time  of  adoption  of such a plan of
         complete  liquidation and at or prior to the Final  Distribution  Date,
         the  Trust  Administrator  shall  sell all of the  assets  of the Trust
         Estate  to the  Seller  for cash at the  purchase  price  specified  in
         Section  9.01 and shall  distribute  such  cash  within 90 days of such
         adoption in the manner specified in Section 9.01.


<PAGE>


                                    ARTICLE X

                            MISCELLANEOUS PROVISIONS

Section 10.01.      Amendment.

     (a) This  Agreement or any Custodial  Agreement may be amended from time to
time by the  Seller,  the  Master  Servicer,  the  Trust  Administrator  and the
Trustee,  without the consent of any of the Certificateholders,  (i) to cure any
ambiguity or mistake,  (ii) to correct or supplement  any  provisions  herein or
therein which may be inconsistent  with any other provisions  herein or therein,
(iii) to modify,  eliminate  or add to any of its  provisions  to such extent as
shall be  necessary  to maintain  the  qualification  of the Trust Estate as two
separate REMICs at all times that any  Certificates  are outstanding or to avoid
or minimize the risk of the  imposition  of any federal tax on the Trust Estate,
the Upper-Tier  REMIC or the Lower-Tier REMIC pursuant to the Code that would be
a claim  against the Trust  Estate,  provided that (a) the Trustee and the Trust
Administrator have received an Opinion of Counsel to the effect that such action
is necessary or desirable to maintain such qualification or to avoid or minimize
the risk of the  imposition  of any such tax and (b) such  action  shall not, as
evidenced by such Opinion of Counsel,  adversely  affect in any material respect
the interests of any Certificateholder,  (iv) to change the timing and/or nature
of deposits into the  Upper-Tier  Certificate  Account and  Certificate  Account
provided  that (a) such change shall not, as evidenced by an Opinion of Counsel,
adversely affect in any material respect the interests of any  Certificateholder
and (b) such change shall not adversely  affect the  then-current  rating of the
Certificates  as evidenced  by a letter from each Rating  Agency to such effect,
(v) to modify,  eliminate or add to the  provisions of Section 5.02 or any other
provisions hereof  restricting  transfer of the Certificates,  provided that the
Master  Servicer  for  purposes  of  Section  5.02  has  determined  in its sole
discretion that any such  modifications to this Agreement will neither adversely
affect the rating on the  Certificates  nor give rise to a risk that  either the
Upper-Tier REMIC or the Lower-Tier REMIC or any of the  Certificateholders  will
be subject to a tax caused by a transfer to a non-permitted  transferee and (vi)
to make any other provisions with respect to matters or questions  arising under
this  Agreement  or such  Custodial  Agreement  which  shall  not be  materially
inconsistent  with the provisions of this  Agreement,  provided that such action
shall  not,  as  evidenced  by an Opinion of  Counsel,  adversely  affect in any
material respect the interests of any Certificateholder.

     This Agreement or any Custodial  Agreement may also be amended from time to
time by the Seller, the Master Servicer, the Trust Administrator and the Trustee
with the consent of the Holders of Certificates  evidencing in the aggregate not
less than 66-2/3% of the aggregate Voting Interests of each Class or Subclass of
Certificates  affected  thereby for the purpose of adding any  provisions  to or
changing in any manner or eliminating any of the provisions of this Agreement or
such Custodial Agreement or of modifying in any manner the rights of the Holders
of  Certificates  of such Class or  Subclass;  provided,  however,  that no such
amendment  shall (i) reduce in any manner the amount of, or delay the timing of,
payments  received on Mortgage Loans which are required to be distributed on any
Certificate  without  the  consent  of the  Holder  of  such  Certificate,  (ii)
adversely  affect  in any  material  respect  the  interest  of the  Holders  of
Certificates  of any Class or Subclass in a manner  other than as  described  in
clause (i) hereof without the consent of Holders of  Certificates  of such Class
or  Subclass  evidencing,  as  to  such  Class  or  Subclass,  Voting  Interests
aggregating  not less than 66-2/3% or (iii) reduce the  aforesaid  percentage of
Certificates  of any Class or  Subclass  the  Holders of which are  required  to
consent  to any such  amendment,  without  the  consent  of the  Holders  of all
Certificates of such Class or Subclass then outstanding.

     Notwithstanding  any  contrary  provision  of this  Agreement,  neither the
Trustee  nor the Trust  Administrator  shall  consent to any  amendment  to this
Agreement  unless it shall  have  first  received  an  Opinion of Counsel to the
effect that such amendment  will not subject either the Upper-Tier  REMIC or the
Lower-Tier  REMIC to tax or cause either the Upper-Tier  REMIC or the Lower-Tier
REMIC  to fail to  qualify  as a REMIC at any time  that  any  Certificates  are
outstanding.

     Promptly  after the  execution of any  amendment  requiring  the consent of
Certificateholders,  the Trust Administrator shall furnish written  notification
of the substance of such amendment to each Certificateholder.

     It shall not be necessary for the consent of Certificateholders  under this
Section 10.01(a) to approve the particular form of any proposed  amendment,  but
it shall be sufficient if such consent shall approve the substance thereof.  The
manner of obtaining  such consents and of evidencing  the  authorization  of the
execution  thereof by  Certificateholders  shall be  subject to such  reasonable
regulations as the Trust Administrator may prescribe.

     (b)  Notwithstanding  any contrary provision of this Agreement,  the Master
Servicer may, from time to time,  amend Schedule I hereto without the consent of
any  Certificateholder,  the  Trust  Administrator  or  the  Trustee;  provided,
however,  (i) that such  amendment  does not conflict with any provisions of the
related Servicing Agreement,  (ii) that the related Servicing Agreement provides
for the remittance of each type of Unscheduled  Principal  Receipts  received by
such Servicer during the Applicable  Unscheduled Principal Receipt Period (as so
amended) related to each  Distribution Date to the Master Servicer no later than
the 24th day of the month in which such  Distribution Date occurs and (iii) that
such amendment is for the purpose of:

                  (a)      changing the Applicable Unscheduled Principal Receipt
                           Period for Exhibit F-1 Mortgage  Loans to a Mid-Month
                           Receipt  Period  with  respect  to  all   Unscheduled
                           Principal Receipts; or

                  (b)      changing the Applicable Unscheduled Principal Receipt
                           Period  for  all  Mortgage   Loans  serviced  by  any
                           Servicer to a Mid-Month  Receipt  Period with respect
                           to Full Unscheduled Principal Receipts and to a Prior
                           Month   Receipt   Period  with   respect  to  Partial
                           Unscheduled Principal Receipts.

     A copy of any  amendment  to Schedule I pursuant to this  Section  10.01(b)
shall be promptly forwarded to the Trust Administrator.

Section 10.02.      Recordation of Agreement.

     This  Agreement (or an abstract  hereof,  if  acceptable to the  applicable
recording  office) is subject to recordation in all  appropriate  public offices
for real property records in all the towns or other comparable  jurisdictions in
which any or all of the  Mortgaged  Properties  are  situated,  and in any other
appropriate  public office or elsewhere,  such recordation to be effected by the
Master Servicer and at its expense on direction by the Trust Administrator,  but
only upon direction accompanied by an Opinion of Counsel to the effect that such
recordation   materially   and   beneficially   affects  the  interests  of  the
Certificateholders.

     For the purpose of facilitating the recordation of this Agreement as herein
provided and for other purposes,  this Agreement may be executed  simultaneously
in any number of counterparts,  each of which counterparts shall be deemed to be
an  original,  and  such  counterparts  shall  constitute  but one and the  same
instrument.

Section 10.03.      Limitation on Rights of Certificateholders.

     The death or  incapacity  of any  Certificateholder  shall not  operate  to
terminate   this   Agreement   or   the   Trust   Estate,   nor   entitle   such
Certificateholder's  legal  representatives  or heirs to claim an  accounting or
take any action or  proceeding in any court for a partition or winding up of the
Trust Estate,  nor otherwise  affect the rights,  obligations and liabilities of
the parties hereto or any of them.

     Except as otherwise expressly provided herein, no Certificateholder, solely
by virtue of its status as a Certificateholder,  shall have any right to vote or
in any manner  otherwise  control  the  operation  and  management  of the Trust
Estate, or the obligations of the parties hereto,  nor shall anything herein set
forth,  or  contained  in the terms of the  Certificates,  be construed so as to
constitute the Certificateholders from time to time as partners or members of an
association, nor shall any Certificateholder be under any liability to any third
person by reason of any action taken by the parties to this  Agreement  pursuant
to any provision hereof.

     No Certificateholder,  solely by virtue of its status as Certificateholder,
shall have any right by virtue or by availing of any provision of this Agreement
to institute any suit, action or proceeding in equity or at law upon or under or
with respect to this Agreement,  unless such Holder  previously shall have given
to the Trust  Administrator  a written notice of default and of the  continuance
thereof, as hereinbefore  provided,  and unless also the Holders of Certificates
evidencing  not  less  than  25%  of  the  Voting  Interest  represented  by all
Certificates  shall have made written  request upon the Trust  Administrator  to
institute such action, suit or proceeding in its own name as Trust Administrator
hereunder  and shall have  offered to the Trust  Administrator  such  reasonable
indemnity as it may require  against the cost,  expenses and  liabilities  to be
incurred therein or thereby, and the Trust Administrator,  for 60 days after its
receipt of such notice, request and offer of indemnity,  shall have neglected or
refused to institute any such action,  suit or proceeding;  it being  understood
and intended,  and being  expressly  covenanted by each  Certificateholder  with
every other  Certificateholder and the Trust Administrator,  that no one or more
Holders of Certificates shall have any right in any manner whatever by virtue or
by availing of any provision of this  Agreement to affect,  disturb or prejudice
the  rights of the  Holders of any other of such  Certificates,  or to obtain or
seek to obtain  priority  over or  preference  to any other such  Holder,  or to
enforce any right under this Agreement, except in the manner herein provided and
for the benefit of all Certificateholders. For the protection and enforcement of
the provisions of this Section,  each and every  Certificateholder and the Trust
Administrator  shall be entitled to such relief as can be given either at law or
in equity.

Section 10.04.      Governing Law; Jurisdiction.

     This Agreement  shall be construed in accordance with the laws of the State
of  New  York  (without  regard  to  conflicts  of  laws  principles),  and  the
obligations, rights and remedies of the parties hereunder shall be determined in
accordance with such laws.

Section 10.05.      Notices.

     All demands,  notices and communications  hereunder shall be in writing and
shall be deemed to have been duly given if personally  delivered at or mailed by
certified or registered  mail,  return receipt  requested (i) in the case of the
Seller,  to  Norwest  Asset  Securities  Corporation,   7485  New  Horizon  Way,
Frederick,  Maryland 21703,  Attention:  Chief Executive Officer,  or such other
address as may hereafter be furnished to the Master  Servicer and the Trustee in
writing by the Seller, (ii) in the case of the Master Servicer,  to Norwest Bank
Minnesota, National Association, 5325 Spectrum Drive, Frederick, Maryland 21703,
Attention: Vice President or such other address as may hereafter be furnished to
the Seller and the Trustee in writing by the Master Servicer,  (iii) in the case
of the Trustee,  to the Corporate Trust Office and (iv) in the case of the Trust
Administrator,  to the  Corporate  Trust  Office,  or such other  address as may
hereafter be  furnished to the Seller and the Master  Servicer in writing by the
Trustee or the Trust  Administrator,  in each case  Attention:  Corporate  Trust
Department Any notice required or permitted to be mailed to a  Certificateholder
shall be given by first  class  mail,  postage  prepaid,  at the address of such
Holder as shown in the  Certificate  Register.  Any notice mailed or transmitted
within the time prescribed in this Agreement  shall be conclusively  presumed to
have been  duly  given,  whether  or not the  addressee  receives  such  notice,
provided,  however,  that any  demand,  notice or  communication  to or upon the
Seller, the Master Servicer, the Trust Administrator or the Trustee shall not be
effective until received.

     For all purposes of this Agreement,  in the absence of actual  knowledge by
an officer of the Master  Servicer,  the Master  Servicer shall not be deemed to
have  knowledge  of any act or failure to act of any  Servicer  unless  notified
thereof in writing by the Trustee, the Trust  Administrator,  such Servicer or a
Certificateholder.

Section 10.06.      Severability of Provisions.

     If any one or more of the  covenants,  agreements,  provisions  or terms of
this  Agreement  shall be for any  reason  whatsoever  held  invalid,  then such
covenants,  agreements,  provisions or terms shall be deemed  severable from the
remaining covenants, agreements, provisions or terms of this Agreement and shall
in no way affect the validity or  enforceability of the other provisions of this
Agreement or of the Certificates or the rights of the Holders thereof.

Section 10.07.      Special Notices to Rating Agencies.

     (a) The Trust  Administrator shall give prompt notice to each Rating Agency
of the occurrence of any of the following events of which it has notice:

                  (i)  any  amendment  to this  Agreement  pursuant  to  Section
         10.01(a);

                  (ii) any sale or transfer of the Class B Certificates pursuant
         to Section 5.02 to an affiliate of the Seller;

                  (iii) any assignment by the Master  Servicer of its rights and
         delegation of its duties pursuant to Section 6.06;

                  (iv)  any  resignation  of the  Master  Servicer  pursuant  to
         Section 6.04;

                  (v) the  occurrence of any of the Events of Default  described
         in Section 7.01;

                  (vi) any notice of  termination  given to the Master  Servicer
         pursuant to Section 7.01;

                  (vii) the  appointment of any successor to the Master Servicer
         pursuant to Section 7.05; or

                  (viii) the making of a final payment pursuant to Section 9.01.

     (b) The Master  Servicer  shall give prompt notice to each Rating Agency of
the occurrence of any of the following events:

                  (i) the appointment of a Custodian pursuant to Section 2.02;

                  (ii) the  resignation  or removal of the  Trustee or the Trust
         Administrator pursuant to Section 8.08;

                  (iii)  the  appointment  of  a  successor   trustee  or  trust
         administrator pursuant to Section 8.09; or

                  (iv)  the  sale,  transfer  or other  disposition  in a single
         transaction  of 50% or  more  of the  equity  interests  in the  Master
         Servicer.

     (c) The Master Servicer shall deliver to each Rating Agency:

                   (i)     reports prepared pursuant to Section 3.05; and

                  (ii)     statements prepared pursuant to Section 4.04.

Section 10.08.      Covenant of Seller.

     The  Seller  shall  not  amend   Article  Third  of  its   Certificate   of
Incorporation without the prior written consent of each Rating Agency rating the
Certificates.

Section 10.09.      Recharacterization.

     The Parties  intend the  conveyance  by the Seller to the Trustee of all of
its right,  title and  interest in and to the  Mortgage  Loans  pursuant to this
Agreement to constitute a purchase and sale and not a loan.  Notwithstanding the
foregoing,  to the extent that such  conveyance is held not to constitute a sale
under  applicable  law, it is intended that this  Agreement  shall  constitute a
security  agreement under  applicable law and that the Seller shall be deemed to
have  granted to the Trustee a first  priority  security  interest in all of the
Seller's right, title and interest in and to the Mortgage Loans.


<PAGE>


                                   ARTICLE XI

                             TERMS FOR CERTIFICATES

Section 11.01.      Class A Fixed Pass-Through Rate.

     The Class A Fixed Pass-Through Rate is 7.25% per annum.

Section 11.02.      Cut-Off Date.

     The Cut-Off Date for the Certificates is January 1, 1997.

Section 11.03.      Cut-Off Date Aggregate Principal Balance.

     The Cut-Off Date Aggregate Principal Balance is $185,029,462.51.

Section 11.04.      Original Class A Percentage.

     The Original Class A Percentage is 96.24965106%.

Section 11.05.      Original Class A Subclass Principal Balances.

     As to the  following  Subclasses  of  Class  A  Certificates,  the  Class A
Subclass Principal Balance of such Subclass as of the Cut-Off Date, as follows:

                                               Original Class A
       Class A Subclass                        Subclass Principal Balance
       ----------------                        --------------------------

          Class A-1                                 $ 28,214,000.00
          Class A-2                                 $ 21,976,000.00
          Class A-3                                 $ 27,806,000.00
          Class A-4                                 $ 21,356,000.00
          Class A-6                                 $ 45,834,000.00
          Class A-7                                 $ 11,541,000.00
          Class A-8                                 $ 19,490,000.00
          Class A-PO                                $  1,873,162.03
          Class A-LR                                $         25.00
          Class A-R                                 $         25.00

Section 11.06.  Original Class A Non-PO Principal Balance.

     The Original Class A Non-PO Principal Balance is $176,217,050.00.

Section 11.07.      Original Class A-5 Notional Amount.

     The Original Class A-5 Notional Amount is $8,804,965.52.

Section 11.08.      Original Subordinated Percentage.

     The Original Subordinated Percentage is 3.78870422%.

Section 11.09.      Original Class M Percentage.

     The Original Class M Percentage is 1.51564538%.

Section 11.10.      Original Class M Principal Balance.

     The Original Class M Principal Balance is $2,776,000.00.

Section 11.11.      Original Class M Fractional Interest.

     The Original Class M Fractional Interest is 2.27305884%.

Section 11.12.      Original Class B-1 Percentage.

     The Original Class B-1 Percentage is 1.01006626%.

Section 11.13.      Original Class B-2 Percentage.

     The Original Class B-2 Percentage is 0.50503313%.

Section 11.14.      Original Class B-3 Percentage.

     The Original Class B-3 Percentage is 0.30310988%.

Section 11.15.      Original Class B-4 Percentage.

     The Original Class B-4 Percentage is 0.15178293%.

Section 11.16.      Original Class B-5 Percentage.

     The Original Class B-5 Percentage is 0.30315664%.

Section 11.17.      Original Class B Principal Balance.

     The Original Class B Principal Balance is $4,163,250.48.

Section 11.18.      Original Class B Subclass Principal Balances.

     As to any Class B Certificate,  the Class B Subclass  Principal  Balance of
such Subclass as of the Cut-Off Date, is as follows:

                                   Original Class B
          Class B Subclass         Subclass Principal Balance
          ----------------         --------------------------
          Class B-1                   $  1,850,000.00
          Class B-2                   $    925,000.00
          Class B-3                   $    555,000.00
          Class B-4                   $    278,000.00
          Class B-5                   $    555,250.00

Section 11.19.      Original Class B-1 Fractional Interest.

     The Original Class B-1 Fractional Interest is 1.26299257%.

Section 11.20.      Original Class B-2 Fractional Interest.

     The Original Class B-2 Fractional Interest is 0.75795944%.

Section 11.21.      Original Class B-3 Fractional Interest.

     The Original Class B-3 Fractional Interest is 0.45493956%.

Section 11.22.      Original Class B-4 Fractional Interest.

     The Original Class B-4 Fractional Interest is 0.30315663%.

Section 11.23.      Closing Date.

     The Closing Date is January 30, 1997.

Section 11.24.      Right to Purchase.

     The right of the Seller to purchase all of the Mortgage  Loans  pursuant to
Section  9.01 hereof  shall be  conditioned  upon the Pool  Scheduled  Principal
Balance of the Mortgage Loans being less than $18,502,946.25 (10% of the Cut-Off
Date Aggregate Principal Balance) at the time of any such purchase.

Section 11.25.      Wire Transfer Eligibility.

     With  respect  to the  Class A  Certificates  (other  than  the  Class  A-5
Certificate),  the  minimum  Denomination  eligible  for wire  transfer  on each
Distribution Date is $5,000,000. With respect to the Class A-5 Certificate,  the
minimum  Denomination  eligible for wire transfer on each  Distribution  Date is
100% Percentage Interest.  The Class A-PO, Class A-R, Class A-LR, Class M, Class
B-1, Class B-2, Class B-3, Class B-4 and Class B-5 Certificates are not eligible
for wire transfer.

Section 11.26.      Single Certificate.

     A Single Certificate for each Subclass of Class A Certificates  (other than
the Class A-7, Class A-R and Class A-LR Certificates),  the Class M Certificates
and the Class B Certificates (other than the Class B-3, Class B-4, and Class B-5
Certificates)  represents a $100,000 Denomination.  A Single Certificate for the
Class A-5 Certificate  represents a Denomination equal to the Original Class A-5
Notional  Amount.  A  Single  Certificate  for  the  Class  A-R and  Class  A-LR
Certificates represents a $25 Denomination. A Single Certificate for the each of
the Class B-3,  Class B-4 and Class B-5  Certificates  represents a Denomination
equal to the Original Class B Subclass Principal Balance of each such Subclass.

Section 11.27.      Servicing Fee Rate.

     The rate used to calculate the Servicing Fee is equal to 0.250% per annum.

Section 11.28.      Master Servicing Fee Rate.

     The rate used to calculate the Master  Servicing Fee for each Mortgage Loan
is 0.016% per annum.


<PAGE>


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

                              NORWEST ASSET SECURITIES CORPORATION
                                as Seller

                              By:
                                  Name:
                                  Title:

                              NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION
                                as Master Servicer

                              By:
                                  Name:
                                  Title:

                              FIRST UNION NATIONAL BANK OF NORTH CAROLINA
                                as Trust Administrator

                              By:
                                  Name:
                                  Title:

Attest:
By:
Name:
Title:


                              FIRSTAR TRUST COMPANY
                                as Trustee

                              By:
                                  Name:
                                  Title:

                              By:
                                  Name:
                                  Title:


<PAGE>


STATE OF NEW YORK                   )
                                       ss.:
COUNTY OF NEW YORK                  )

     On this 30th day of January,  1997,  before me, a notary  public in and for
the State of New York, personally B. David Bialzak, known to me who, being by me
duly sworn, did depose and say that he resides at Frederick,  Maryland;  that he
is a  Vice  President  of  Norwest  Asset  Securities  Corporation,  a  Delaware
corporation, one of the parties that executed the foregoing instrument; and that
he  signed  his  name  thereto  by  order  of the  Board  of  Directors  of said
corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]

<PAGE>


STATE OF                            )
                                       ss.:
COUNTY OF                           )

     On this 30th day of January,  1997,  before me, a notary  public in and for
the State of -----------,  personally appeared --------------,  known to me who,
being by me duly  sworn,  did depose  and say that he  resides at  ------------,
- ------------;  that he is a Vice President of Norwest Bank  Minnesota,  National
Association,  a national banking  association,  one of the parties that executed
the  foregoing  instrument;  and that he signed his name thereto by order of the
Board of Directors of said corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]


<PAGE>


STATE OF NORTH CAROLINA             )
                                       ss.:
COUNTY OF                           )

     On this 30th day of January,  1997,  before me, a notary  public in and for
the State of North Carolina, personally appeared  -------------------,  known to
me who,  being by me duly  sworn,  did  depose  and say  that  s/he  resides  at
- -----------------,  North Carolina; that s/he is a -------------------- of First
Union National Bank of North Carolina,  a national banking  association,  one of
the parties that executed the foregoing instrument; and that s/he signed his/her
name thereto by order of the Board of Directors of said corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]


<PAGE>


STATE OF NORTH CAROLINA             )
                                       ss.:
COUNTY OF                           )

     On this 30th day of January,  1997,  before me, a notary  public in and for
the State of North Carolina, personally appeared ---------------------, known to
me  who,  being  by me duly  sworn,  did  depose  and say  that  he  resides  at
- ------------------,  North Carolina; that he is a --------------------- of First
Union National Bank of North Carolina,  a national banking  association,  one of
the parties that  executed the  foregoing  instrument;  and that s/he signed his
name thereto by order of the Board of Directors of said corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]


<PAGE>


STATE OF WISCONSIN                  )
                                       ss.:
COUNTY OF                           )

     On this 30th day of January,  1997,  before me, a notary  public in and for
the State of Wisconsin,  personally  appeared  -------------------,  known to me
who,  being  by me  duly  sworn,  did  depose  and  say  that  s/he  resides  at
- ----------------,  Wisconsin;  that s/he is a  --------------------  of  Firstar
Trust Company, a ------------------------,  one of the parties that executed the
foregoing instrument;  and that s/he signed her/his name thereto by order of the
Board of Directors of said corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]


<PAGE>


STATE OF WISCONSIN                  )
                                       ss.:
COUNTY OF                           )

     On this 30th day of January,  1997,  before me, a notary  public in and for
the State of Wisconsin,  personally  appeared  -------------------,  known to me
who,  being  by me  duly  sworn,  did  depose  and  say  that  s/he  resides  at
- ----------------,  Wisconsin;  that s/he is a  --------------------  of  Firstar
Trust Company, a ------------------------,  one of the parties that executed the
foregoing instrument;  and that s/he signed her/his name thereto by order of the
Board of Directors of said corporation.


- -------------------------
Notary Public

[NOTARIAL SEAL]


<PAGE>


                                   SCHEDULE I

           Norwest Asset Securities Corporation, Mortgage Pass-Through
                           Certificates, Series 1997-1
                 Applicable Unscheduled Principal Receipt Period

                                      Full Unscheduled      Partial Unscheduled
Servicer                              Principal Receipts    Principal Receipts
- --------                              ------------------    ------------------

Citicorp Mortgage, Inc.               Prior Month           Prior Month

Countrywide Home Loans, Inc.          Prior Month           Prior Month

First Union Mortgage Corporation      Prior Month           Prior Month

HomeSide Lending                      Prior Month           Prior Month

National City Mortgage Company        Prior Month           Prior Month

Norwest Mortgage, Inc. (Exhibit F-1)  Prior Month           Prior Month

Norwest Mortgage, Inc. (Exhibit F-2)  Mid-Month             Mid-Month

Suntrust Mortgage, Inc.               Prior Month           Prior Month


<PAGE>


                                   EXHIBIT A-1
                     [FORM OF FACE OF CLASS A-1 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-1 CLASS A-1

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997


Percentage Interest evidenced      Denomination: $
by this Certificate:  %


<PAGE>


     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-1  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-1 Certificates required to be distributed to
Holders  of  Class  A-1  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-1 Certificates  applicable to each  Distribution  Date will be 6.50% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-1 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency specified by the Trust Administrator for that purpose in
the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                             First Union National Bank of North Carolina,
                               Trust Administrator

                             By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT A-2
                     [FORM OF FACE OF CLASS A-2 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-1 CLASS A-2

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-2  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-2 Certificates required to be distributed to
Holders  of  Class  A-2  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-2 Certificates  applicable to each  Distribution  Date will be 6.50% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-2 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency specified by the Trust Administrator for that purpose in
the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                           First Union National Bank of North Carolina,
                             Trust Administrator

                           By----------------------------
                             Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT A-3
                     [FORM OF FACE OF CLASS A-3 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-1 CLASS A-3

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                   Cut-Off Date:   January 1, 1997

CUSIP No.:                        First Distribution Date:  February 25, 1997

Percentage Interest evidenced     Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-3  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-3 Certificates required to be distributed to
Holders  of  Class  A-3  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-3 Certificates  applicable to each  Distribution  Date will be 6.50% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-3 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency specified by the Trust Administrator for that purpose in
the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  is issued on January  30,  1997,  and based on its issue
price of 98.21111%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal  balance (plus five days of interest at
the  Pass-Through  Rate hereon),  is issued with original issue discount ("OID")
for  federal  income  tax  purposes.  Assuming  that  this  Certificate  pays in
accordance  with  projected cash flows  reflecting the Prepayment  Assumption of
200% SPA (as defined in the  Prospectus  Supplement  dated January 23, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-6, Class A-7, Class A-8, Class A-PO,  Class A-R, Class A-LR,  Class
M, Class B-1 and Class B-2 Certificates) used to price this Certificate: (i) the
amount  of  OID as a  percentage  of  the  initial  principal  balance  of  this
Certificate is approximately  1.87916667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  6.91%; and (iii) the
amount of OID allocable to the short first accrual  period  (January 30, 1997 to
February  25,  1997) as a percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.01972634%.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT A-4
                     [FORM OF FACE OF CLASS A-4 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-1 CLASS A-4

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-4  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-4 Certificates required to be distributed to
Holders  of  Class  A-4  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-4 Certificates  applicable to each  Distribution  Date will be 7.00% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-4 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency specified by the Trust Administrator for that purpose in
the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                               Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT A-5
                     [FORM OF FACE OF CLASS A-5 CERTIFICATE]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-1 CLASS A-5

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     THE  NOTIONAL  AMOUNT OF THIS  CERTIFICATE  WILL BE  REDUCED  IN THE MANNER
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT.  ACCORDINGLY,  THE OUTSTANDING
NOTIONAL  AMOUNT OF THIS  CERTIFICATE  AT ANY TIME MAY BE LESS THAN THE  INITIAL
NOTIONAL AMOUNT REPRESENTED HEREBY.

Certificate No.                   Cut-Off Date:   January 1, 1997

CUSIP No.:                        First Distribution Date:  February 25, 1997

Percentage Interest evidenced     Denomination:  $           (initial Class A-5
by this Certificate: %                                         Notional Amount)


<PAGE>


     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-5  Certificate  with  respect  to a  Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-5 Certificate  required to be distributed to
the Holder of the Class A-5 Certificate on such  Distribution  Date,  subject to
adjustment  in  certain  events as  specified  in the  Agreement.  The Class A-5
Certificate is not entitled to distributions  in respect of principal.  Interest
will accrue on the Class A-5  Certificate  each month in an amount  equal to the
product of (i) 1/12th of 7.25% and (ii) the Class A-5 Notional  Amount as of the
related  Distribution  Date.  The  amount  of  interest  which  accrues  on this
Certificate  in any month  will be  subject  to  reduction  with  respect to any
Non-Supported  Interest  Shortfall and the interest  portion of certain Realized
Losses allocated to the Class A-5 Certificate, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above,  the final  distribution on this Certificate will be
made  after  due  notice  of the  pendency  of such  distribution  and only upon
presentation and surrender of this Certificate at the office or agency specified
by the Trust Administrator for that purpose in the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  is issued on  January  30,  1997,  at an issue  price of
20.27153% of the initial Class A-5 Notional Amount,  including accrued interest,
and a stated  redemption  price at maturity equal to all interest  distributions
hereon,  and is issued with original issue  discount  ("OID") for federal income
tax purposes.  Assuming that this  Certificate pays in accordance with projected
cash flows  reflecting the Prepayment  Assumption of 200% SPA (as defined in the
Prospectus Supplement dated January 23, 1997 with respect to the offering of the
Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class A-6, Class A-7,
Class A-8, Class A-PO,  Class A-R, Class A-LR,  Class M, Class B-1 and Class B-2
Certificates)  used  to  price  this  Certificate:  (i) the  amount  of OID as a
percentage   of  the  initial  Class  A-5  Notional   Amount  is   approximately
8.69281949%;  (ii) the annual yield to maturity of this Certificate,  compounded
monthly,  is approximately  14.59%; and (iii) the amount of OID allocable to the
short  first  accrual  period  (January  30,  1997 to  February  25,  1997) as a
percentage of the initial Class A-5 Notional Amount,  calculated using the exact
method, is approximately 0.20515709%.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT A-6
                     [FORM OF FACE OF CLASS A-6 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-1 CLASS A-6

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-6  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-6 Certificates required to be distributed to
Holders  of  Class  A-6  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-6 Certificates  applicable to each  Distribution  Date will be 7.25% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-6 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency specified by the Trust Administrator for that purpose in
the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator
By ------------------------
   Authorized Officer

<PAGE>


                                   EXHIBIT A-7
                     [FORM OF FACE OF CLASS A-7 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-1 CLASS A-7

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER, THE MASTER SERVICER,  THE TRUSTEE,  TRUST  ADMINISTRATOR OR ANY OF THEIR
AFFILIATES, AND IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER,
THE  TRUSTEE,  THE TRUST  ADMINISTRATOR  OR ANY OF THEIR  AFFILIATES,  OR BY ANY
GOVERNMENT AGENCY OR PRIVATE INSURER.

     UNTIL THE  ACCRETION  TERMINATION  DATE,  THE INTEREST  THAT ACCRUES ON THE
PRINCIPAL  BALANCE OF THIS CERTIFICATE WILL NOT BE PAYABLE.  BECAUSE SUCH UNPAID
INTEREST  IS ADDED TO THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE  AND  BECAUSE
DISTRIBUTIONS  IN REDUCTION OF THE PRINCIPAL  BALANCE WILL BE MADE IN THE MANNER
DESCRIBED  IN THE  AGREEMENT  (AS DEFINED  HEREIN),  THE  OUTSTANDING  PRINCIPAL
BALANCE  OF THIS  CERTIFICATE  AT ANY TIME MAY BE MORE OR LESS THAN THE  INITIAL
PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                   Cut-Off Date:   January 1, 1997

CUSIP No.:                        First Distribution Date:  February 25, 1997

Percentage Interest evidenced     Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-7  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-7 Certificates required to be distributed to
Holders  of  Class  A-7  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-7 Certificates  applicable to each  Distribution  Date will be 7.25% per
annum. Prior to the Accretion Termination Date, interest otherwise available for
distribution on this Certificate will be added to the Class A Subclass Principal
Balance of such  Certificate on each  Distribution  Date. The amount of interest
which accrues on this Certificate in any month will be subject to reduction with
respect to any  Non-Supported  Interest  Shortfall  and the interest  portion of
certain Realized Losses allocated to the Class A-7 Certificates, as described in
the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency specified by the Trust Administrator for that purpose in
the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  is issued on January 30, 1997,  and at an issue price of
93.95903%, including accrued interest, and a stated redemption price at maturity
equal to the sum of its initial principal balance and all interest distributions
hereon (whether current or accrued),  and is issued with original issue discount
("OID") for federal income tax purposes.  Assuming that this Certificate pays in
accordance  with  projected cash flows  reflecting the Prepayment  Assumption of
200% SPA (as defined in the  Prospectus  Supplement  dated January 23, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-6, Class A-7, Class A-8, Class A-PO,  Class A-R, Class A-LR,  Class
M, Class B-1 and Class B-2 Certificates) used to price this Certificate: (i) the
amount  of  OID as a  percentage  of  the  initial  principal  balance  of  this
Certificate is approximately  6.14166667%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  7.87%; and (iii) the
amount of OID allocable to the short first accrual  period  (January 30, 1997 to
February  25,  1997) as a percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.00958293%.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT A-8
                     [FORM OF FACE OF CLASS A-8 CERTIFICATE]

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

                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-1 CLASS A-8

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                   Cut-Off Date:   January 1, 1997

CUSIP No.:                        First Distribution Date:  February 25, 1997

Percentage Interest evidenced     Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-8  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-8 Certificates required to be distributed to
Holders  of  Class  A-8  Certificates  on such  Distribution  Date,  subject  to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-8 Certificates  applicable to each  Distribution  Date will be 7.25% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-8 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency specified by the Trust Administrator for that purpose in
the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                  EXHIBIT A-PO
                    [FORM OF FACE OF CLASS A-PO CERTIFICATE]


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-1, CLASS A-PO

            evidencing an interest in a pool of fixed interest rate,
        conventional, monthly pay, fully amortizing, first lien, one- to
         four-family residential mortgage loans, which may include loans
          secured by shares issued by cooperative housing corporations,
                                     sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT ---------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the Holders of the Class A-PO  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master Servicer"), Firstar Trust Company, as trustee (the "Trustee"), and First
Union  National  Bank of North  Carolina,  as trust  administrator  (the  "Trust
Administrator"),  a summary of certain of the  pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the  Percentage  Interest  evidenced  by this  Certificate  and the  Class  A-PO
Distribution  Amount  required  to be  distributed  to  Holders  of  Class  A-PO
Certificates on such Distribution  Date, subject to adjustment in certain events
as specified in the Agreement.  The Class A-PO Certificates will not be entitled
to distributions in respect of interest.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above,  the final  distribution  in reduction of the  principal  balance of this
Certificate  will be made after due notice of the pendency of such  distribution
and only upon  presentation  and surrender of this  Certificate at the office or
agency  specified by the Trust  Administrator  for that purpose in the notice of
final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  is issued on  January  30,  1997,  at an issue  price of
68.25000%  and a stated  redemption  price  at  maturity  equal  to its  initial
principal  balance,  and is issued  with  original  issue  discount  ("OID") for
federal income tax purposes.  Assuming that this  Certificate pays in accordance
with projected cash flows  reflecting the Prepayment  Assumption of 200% SPA (as
defined in the Prospectus  Supplement dated January 23, 1997 with respect to the
offering of the Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class
A-6, Class A-7, Class A-8, Class A-PO, Class A-R, Class A-LR, Class M, Class B-1
and Class B-2 Certificates)  used to price this  Certificate:  (i) the amount of
OID as a percentage  of the initial  principal  balance of this  Certificate  is
approximately   31.75000000%;   (ii)  the  annual  yield  to  maturity  of  this
Certificate, compounded monthly, is approximately 7.70%; and (iii) the amount of
OID  allocable to the short first accrual  period  (January 30, 1997 to February
25, 1997) as a percentage of the initial  principal balance of this Certificate,
calculated using the exact method, is approximately 0.36482010%.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator  by manual  signature,  this  Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>


<PAGE>


                                   EXHIBIT A-R
                     [Form of Face of Class A-R Certificate]

FOR U.S. FEDERAL INCOME TAX PURPOSES,  THIS CERTIFICATE IS A "RESIDUAL INTEREST"
IN A "REAL  ESTATE  MORTGAGE  INVESTMENT  CONDUIT" AS THOSE  TERMS ARE  DEFINED,
RESPECTIVELY,  IN SECTIONS  860G(a)(2) AND 860D OF THE INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE "CODE").  A TRANSFEREE OF THIS CERTIFICATE,  BY ACCEPTANCE
HEREOF,  IS  DEEMED  TO  HAVE  ACCEPTED  THIS  CERTIFICATE  SUBJECT  TO  CERTAIN
RESTRICTIONS ON TRANSFERABILITY,  AS SET FORTH IN SECTION 5.02(d) OF THE POOLING
AND  SERVICING  AGREEMENT,  AND SHALL BE REQUIRED TO FURNISH AN AFFIDAVIT TO THE
TRANSFEROR AND THE TRUST  ADMINISTRATOR  TO THE EFFECT THAT, AMONG OTHER THINGS,
IT IS NOT A DISQUALIFIED  ORGANIZATION,  AS SUCH TERM IS DEFINED IN CODE SECTION
860E(e)(5),  AN AGENT  (INCLUDING A BROKER,  NOMINEE OR OTHER  MIDDLEMAN)  FOR A
DISQUALIFIED  ORGANIZATION  OR A  NON-PERMITTED  FOREIGN  HOLDER,  AS DEFINED IN
SECTION  5.02(d) OF THE POOLING AND  SERVICING  AGREEMENT  AND TO HAVE AGREED TO
SUCH  AMENDMENTS  TO THE POOLING AND  SERVICING  AGREEMENT AS MAY BE REQUIRED TO
FURTHER EFFECTUATE THE RESTRICTIONS ON TRANSFERS TO DISQUALIFIED  ORGANIZATIONS,
AGENTS THEREOF OR NON-PERMITTED FOREIGN HOLDERS.

THE HOLDER OF THIS CLASS A-R  CERTIFICATE,  BY ACCEPTANCE  HEREOF,  IS DEEMED TO
HAVE  AGREED TO THE  DESIGNATION  OF THE MASTER  SERVICER AS ITS AGENT TO ACT AS
"TAX MATTERS PERSON" OF THE UPPER-TIER  REMIC TO PERFORM THE FUNCTIONS OF A "TAX
MATTERS PARTNER" FOR PURPOSES OF SUBCHAPTER C OF CHAPTER 63 OF SUBTITLE F OF THE
CODE, OR, IF SO REQUESTED BY THE MASTER  SERVICER,  TO ACT AS TAX MATTERS PERSON
OF THE UPPER-TIER REMIC.

THIS  CERTIFICATE  MAY NOT BE PURCHASED BY OR TRANSFERRED TO ANY PERSON WHICH IS
AN EMPLOYEE BENEFIT PLAN SUBJECT TO THE FIDUCIARY  RESPONSIBILITY  PROVISIONS OF
THE EMPLOYEE  RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED  ("ERISA"),  OR
SECTION 4975 OF THE CODE OR ANY  GOVERNMENTAL  PLAN, AS DEFINED IN SECTION 3(32)
OF ERISA  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW WHICH IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"), OR ANY PERSON ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN.

PURCHASERS  OF THIS  CLASS A-R  CERTIFICATE  SHOULD BE AWARE  THAT ON JANUARY 3,
1995,  THE INTERNAL  REVENUE  SERVICE  ISSUED  PROPOSED  REGULATIONS  UNDER CODE
SECTION  475 THAT,  IF  ADOPTED  IN FINAL  FORM,  WOULD  APPLY TO THIS CLASS A-R
CERTIFICATE  AND WOULD NOT  PERMIT  THIS CLASS A-R  CERTIFICATE  TO BE MARKED TO
MARKET.


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-1, CLASS A-R


                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by


                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $25.00
by this Certificate: 100%


<PAGE>


     THIS CERTIFIES THAT  --------------------------  is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holder of the Class  A-R  Certificate  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-R Certificate  required to be distributed to
the Holders of the Class A-R Certificate on such Distribution  Date,  subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
will not commence on the first Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-R  Certificate  applicable to each  Distribution  Date will be 7.25% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-R Certificate, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above, the final  distribution on this Certificate will be made after due notice
of the pendency of such distribution and only upon presentation and surrender of
this  Certificate at the office or agency  specified by the Trust  Administrator
for that purpose in the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator


                         By----------------------------
                               Authorized Officer

Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                  EXHIBIT A-LR
                    [Form of Face of Class A-LR Certificate]

FOR U.S. FEDERAL INCOME TAX PURPOSES,  THIS CERTIFICATE IS A "RESIDUAL INTEREST"
IN A "REAL  ESTATE  MORTGAGE  INVESTMENT  CONDUIT" AS THOSE  TERMS ARE  DEFINED,
RESPECTIVELY,  IN SECTIONS  860G(a)(2) AND 860D OF THE INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE "CODE").  A TRANSFEREE OF THIS CERTIFICATE,  BY ACCEPTANCE
HEREOF,  IS  DEEMED  TO  HAVE  ACCEPTED  THIS  CERTIFICATE  SUBJECT  TO  CERTAIN
RESTRICTIONS ON TRANSFERABILITY,  AS SET FORTH IN SECTION 5.02(d) OF THE POOLING
AND  SERVICING  AGREEMENT,  AND SHALL BE REQUIRED TO FURNISH AN AFFIDAVIT TO THE
TRANSFEROR AND THE TRUST  ADMINISTRATOR  TO THE EFFECT THAT, AMONG OTHER THINGS,
IT IS NOT A DISQUALIFIED  ORGANIZATION,  AS SUCH TERM IS DEFINED IN CODE SECTION
860E(e)(5),  AN AGENT  (INCLUDING A BROKER,  NOMINEE OR OTHER  MIDDLEMAN)  FOR A
DISQUALIFIED  ORGANIZATION  OR A  NON-PERMITTED  FOREIGN  HOLDER,  AS DEFINED IN
SECTION  5.02(d) OF THE POOLING AND  SERVICING  AGREEMENT  AND TO HAVE AGREED TO
SUCH  AMENDMENTS  TO THE POOLING AND  SERVICING  AGREEMENT AS MAY BE REQUIRED TO
FURTHER EFFECTUATE THE RESTRICTIONS ON TRANSFERS TO DISQUALIFIED  ORGANIZATIONS,
AGENTS THEREOF OR NON-PERMITTED FOREIGN HOLDERS.

THE HOLDER OF THIS CLASS A-LR  CERTIFICATE,  BY ACCEPTANCE  HEREOF, IS DEEMED TO
HAVE  AGREED TO THE  DESIGNATION  OF THE MASTER  SERVICER AS ITS AGENT TO ACT AS
"TAX MATTERS PERSON" OF THE LOWER-TIER  REMIC TO PERFORM THE FUNCTIONS OF A "TAX
MATTERS PARTNER" FOR PURPOSES OF SUBCHAPTER C OF CHAPTER 63 OF SUBTITLE F OF THE
CODE, OR, IF SO REQUESTED BY THE MASTER  SERVICER,  TO ACT AS TAX MATTERS PERSON
OF THE LOWER-TIER REMIC.

THIS  CERTIFICATE  MAY NOT BE PURCHASED BY OR TRANSFERRED TO ANY PERSON WHICH IS
AN EMPLOYEE BENEFIT PLAN SUBJECT TO THE FIDUCIARY  RESPONSIBILITY  PROVISIONS OF
THE EMPLOYEE  RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED  ("ERISA"),  OR
SECTION 4975 OF THE CODE OR ANY  GOVERNMENTAL  PLAN, AS DEFINED IN SECTION 3(32)
OF ERISA  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW WHICH IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"), OR ANY PERSON ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN.

PURCHASERS  OF THIS  CLASS A-LR  CERTIFICATE  SHOULD BE AWARE THAT ON JANUARY 3,
1995,  THE INTERNAL  REVENUE  SERVICE  ISSUED  PROPOSED  REGULATIONS  UNDER CODE
SECTION  475 THAT,  IF ADOPTED  IN FINAL  FORM,  WOULD  APPLY TO THIS CLASS A-LR
CERTIFICATE  AND WOULD NOT PERMIT  THIS CLASS A-LR  CERTIFICATE  TO BE MARKED TO
MARKET.


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-1, CLASS A-LR


                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by


                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $25.00
by this Certificate: 100%


<PAGE>


     THIS CERTIFIES THAT  --------------------------  is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holder of the Class A-LR  Certificate  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage Loans"),  formed by Norwest Asset Securities Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest  evidenced by this Certificate and the Class A Subclass
Distribution Amount for the Class A-LR Certificate required to be distributed to
the Holders of the Class A-LR Certificate on such Distribution  Date, subject to
adjustment in certain  events as specified in the  Agreement.  Distributions  in
reduction of the principal balance of certain Subclasses of Class A Certificates
will not commence on the first Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-LR Certificate  applicable to each  Distribution  Date will be 7.25% per
annum.  The amount of interest  which accrues on this  Certificate  in any month
will  be  subject  to  reduction  with  respect  to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class A-LR Certificate, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above, the final  distribution on this Certificate will be made after due notice
of the pendency of such distribution and only upon presentation and surrender of
this  Certificate at the office or agency  specified by the Trust  Administrator
for that purpose in the notice of final distribution.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                             First Union National Bank of North Carolina,
                               Trust Administrator


                             By----------------------------
                                   Authorized Officer

Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT B-1
                     [FORM OF FACE OF CLASS B-1 CERTIFICATE]

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A CERTIFICATES
AND THE CLASS M CERTIFICATES AS DESCRIBED IN THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT THE  TRANSFEREE  IS NOT AN EMPLOYEE  BENEFIT PLAN SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF
1974, AS AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986,
AS AMENDED (THE "CODE") OR ANY GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW  WHICH  IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"),  OR ANY PERSON  ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN
OR (B) SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND  SERVICING
AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO  PURCHASE  THIS  CERTIFICATE  IS AN
"INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-1, CLASS B-1

     evidencing an interest in a pool of fixed interest rate, conventional,
         monthly pay, fully amortizing, first lien, one- to four-family
         residential mortgage loans, which may include loans secured by
           shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT ---------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class B-1  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights of the Class A Certificates  and the Class M Certificates as specified in
the Agreement,  any Class B-1 Distribution  Amount required to be distributed to
Holders  of  Class  B-1  Certificates  on such  Distribution  Date,  subject  to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-1 Certificates  applicable to each Distribution Date will be
7.25% per annum. The amount of interest which accrues on this Certificate in any
month will be subject to reduction  with respect to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class B-1 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency specified by the Trust Administrator for that purpose in
the notice of final distribution.

     No  transfer  of a Class B-1  Certificate  will be made  unless  the Holder
hereof   desiring  to  make  any  such  transfer  shall  deliver  to  the  Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT B-2
                     [FORM OF FACE OF CLASS B-2 CERTIFICATE]

THIS   CERTIFICATE  IS   SUBORDINATED  IN  RIGHT  OF  PAYMENT  TO  THE  CLASS  A
CERTIFICATES,  THE  CLASS M  CERTIFICATES  AND THE  CLASS  B-1  CERTIFICATES  AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT THE  TRANSFEREE  IS NOT AN EMPLOYEE  BENEFIT PLAN SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF
1974, AS AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986,
AS AMENDED (THE "CODE") OR ANY GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW  WHICH  IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"),  OR ANY PERSON  ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN
OR (B) SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND  SERVICING
AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO  PURCHASE  THIS  CERTIFICATE  IS AN
"INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-1, CLASS B-2

     evidencing an interest in a pool of fixed interest rate, conventional,
         monthly pay, fully amortizing, first lien, one- to four-family
         residential mortgage loans, which may include loans secured by
           shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY ANY
GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT ---------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class B-2  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights of the Class A Certificates,  the Class M Certificates  and each Subclass
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-2 Distribution  Amount required to be distributed to
Holders  of  Class  B-2  Certificates  on such  Distribution  Date,  subject  to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-2 Certificates  applicable to each Distribution Date will be
7.25% per annum. The amount of interest which accrues on this Certificate in any
month will be subject to reduction  with respect to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class B-2 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above,  the final  distribution  in reduction of the  principal  balance of this
Certificate  will be made after due notice of the pendency of such  distribution
and only upon  presentation  and surrender of this  Certificate at the office or
agency  specified by the Trust  Administrator  for that purpose in the notice of
final distribution.

     No  transfer  of a Class B-2  Certificate  will be made  unless  the Holder
hereof   desiring  to  make  any  such  transfer  shall  deliver  to  the  Trust
Administrator  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                               Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT B-3
                     [FORM OF FACE OF CLASS B-3 CERTIFICATE]

THIS   CERTIFICATE  IS   SUBORDINATED  IN  RIGHT  OF  PAYMENT  TO  THE  CLASS  A
CERTIFICATES, THE CLASS M CERTIFICATES, THE CLASS B-1 CERTIFICATES AND THE CLASS
B-2 CERTIFICATES AS DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO
HEREIN.

THIS  CERTIFICATE  HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE SECURITIES
ACT OF 1933,  AS  AMENDED,  OR THE  SECURITIES  LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS  WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER  APPLICABLE  STATE LAW AND IS TRANSFERRED IN ACCORDANCE  WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING  AGREEMENT  REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT THE  TRANSFEREE  IS NOT AN EMPLOYEE  BENEFIT PLAN SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF
1974, AS AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986,
AS AMENDED (THE "CODE") OR ANY GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW  WHICH  IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"),  OR ANY PERSON  ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN
OR (B) SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND  SERVICING
AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO  PURCHASE  THIS  CERTIFICATE  IS AN
"INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-1, CLASS B-3

     evidencing an interest in a pool of fixed interest rate, conventional,
         monthly pay, fully amortizing, first lien, one- to four-family
         residential mortgage loans, which may include loans secured by
           shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT ---------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class B-3  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights of the Class A Certificates,  the Class M Certificates  and each Subclass
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-3 Distribution  Amount required to be distributed to
Holders  of  Class  B-3  Certificates  on such  Distribution  Date,  subject  to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-3 Certificates  applicable to each Distribution Date will be
7.25% per annum. The amount of interest which accrues on this Certificate in any
month will be subject to reduction  with respect to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class B-3 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above,  the final  distribution  in reduction of the  principal  balance of this
Certificate  will be made after due notice of the pendency of such  distribution
and only upon  presentation  and surrender of this  Certificate at the office or
agency  specified by the Trust  Administrator  for that purpose in the notice of
final distribution.

     No transfer of a Class B-3 Certificate will be made unless such transfer is
exempt from the  registration  requirements  of the  Securities  Act of 1933, as
amended,  and any applicable state securities laws or is made in accordance with
said Act and laws.  In the event that such a  transfer  is desired to be made by
the Holder hereof,  (i) the transferee will be required to execute an investment
letter in the form described in the Agreement and (ii) if such transfer is to be
made within  three  years from the later of (a) the date of initial  issuance of
the  Certificates  or (b) the last  date on which the  Seller  or any  affiliate
thereof was a Holder of the Certificates proposed to be transferred,  and unless
such transfer is made in reliance on Rule 144A of the Securities Act of 1933, as
amended, the Trust Administrator or the Seller may require the Holder to deliver
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trust  Administrator and the Seller that such transfer is exempt (describing
the applicable  exemption and the basis therefor) from or is being made pursuant
to the registration  requirements of the Securities Act of 1933, as amended, and
of any  applicable  statute of any state.  The Holder hereof  desiring to effect
such transfer shall, and does hereby agree to, indemnify the Trustee,  the Trust
Administrator,  the Seller, the Master Servicer,  and any Paying Agent acting on
behalf of the Trust  Administrator  against any liability that may result if the
transfer  is not so exempt or is not made in  accordance  with such  Federal and
state laws. In connection with any such transfer,  the Trust  Administrator will
also  require  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  is issued on January  30,  1997,  and based on its issue
price of 87.41215%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal  balance (plus five days of interest at
the  Pass-Through  Rate hereon),  is issued with original issue discount ("OID")
for  federal  income  tax  purposes.  Assuming  that  this  Certificate  pays in
accordance  with  projected cash flows  reflecting the Prepayment  Assumption of
200% SPA (as defined in the  Prospectus  Supplement  dated January 23, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-6, Class A-7, Class A-8, Class A-PO,  Class A-R, Class A-LR,  Class
M, Class B-1 and Class B-2 Certificates) used to price this Certificate: (i) the
amount  of  OID as a  percentage  of  the  initial  principal  balance  of  this
Certificate is approximately 12.68854167%;  (ii) the annual yield to maturity of
this  Certificate,  compounded  monthly,  is approximately  9.70%; and (iii) the
amount of OID allocable to the short first accrual  period  (January 30, 1997 to
February  25,  1997) as a percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.08469654%.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT B-4
                     [FORM OF FACE OF CLASS B-4 CERTIFICATE]

THIS   CERTIFICATE  IS   SUBORDINATED  IN  RIGHT  OF  PAYMENT  TO  THE  CLASS  A
CERTIFICATES,  THE CLASS M CERTIFICATES,  THE CLASS B-1 CERTIFICATES,  THE CLASS
B-2  CERTIFICATES AND THE CLASS B-3 CERTIFICATES AS DESCRIBED IN THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

THIS  CERTIFICATE  HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE SECURITIES
ACT OF 1933,  AS  AMENDED,  OR THE  SECURITIES  LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS  WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER  APPLICABLE  STATE LAW AND IS TRANSFERRED IN ACCORDANCE  WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING  AGREEMENT  REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT THE  TRANSFEREE  IS NOT AN EMPLOYEE  BENEFIT PLAN SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF
1974, AS AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986,
AS AMENDED (THE "CODE") OR ANY GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW  WHICH  IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"),  OR ANY PERSON  ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN
OR (B) SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND  SERVICING
AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO  PURCHASE  THIS  CERTIFICATE  IS AN
"INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-1, CLASS B-4

     evidencing an interest in a pool of fixed interest rate, conventional,
         monthly pay, fully amortizing, first lien, one- to four-family
         residential mortgage loans, which may include loans secured by
           shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT ---------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class B-4  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights of the Class A Certificates,  the Class M Certificates  and each Subclass
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-4 Distribution  Amount required to be distributed to
Holders  of  Class  B-4  Certificates  on such  Distribution  Date,  subject  to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-4 Certificates  applicable to each Distribution Date will be
7.25% per annum. The amount of interest which accrues on this Certificate in any
month will be subject to reduction  with respect to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class B-4 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above,  the final  distribution  in reduction of the  principal  balance of this
Certificate  will be made after due notice of the pendency of such  distribution
and only upon  presentation  and surrender of this  Certificate at the office or
agency  specified by the Trust  Administrator  for that purpose in the notice of
final distribution.

     No transfer of a Class B-4 Certificate will be made unless such transfer is
exempt from the  registration  requirements  of the  Securities  Act of 1933, as
amended,  and any applicable state securities laws or is made in accordance with
said Act and laws.  In the event that such a  transfer  is desired to be made by
the Holder hereof,  (i) the transferee will be required to execute an investment
letter in the form described in the Agreement and (ii) if such transfer is to be
made within  three  years from the later of (a) the date of initial  issuance of
the  Certificates  or (b) the last  date on which the  Seller  or any  affiliate
thereof was a Holder of the Certificates proposed to be transferred,  and unless
such transfer is made in reliance on Rule 144A of the Securities Act of 1933, as
amended, the Trust Administrator or the Seller may require the Holder to deliver
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trust  Administrator and the Seller that such transfer is exempt (describing
the applicable  exemption and the basis therefor) from or is being made pursuant
to the registration  requirements of the Securities Act of 1933, as amended, and
of any  applicable  statute of any state.  The Holder hereof  desiring to effect
such transfer shall, and does hereby agree to, indemnify the Trustee,  the Trust
Administrator,  the Seller, the Master Servicer,  and any Paying Agent acting on
behalf of the Trust  Administrator  against any liability that may result if the
transfer  is not so exempt or is not made in  accordance  with such  Federal and
state laws. In connection with any such transfer,  the Trust  Administrator will
also  require  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  is issued on January  30,  1997,  and based on its issue
price of 74.41215%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal  balance (plus five days of interest at
the  Pass-Through  Rate hereon),  is issued with original issue discount ("OID")
for  federal  income  tax  purposes.  Assuming  that  this  Certificate  pays in
accordance  with  projected cash flows  reflecting the Prepayment  Assumption of
200% SPA (as defined in the  Prospectus  Supplement  dated January 23, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-6, Class A-7, Class A-8, Class A-PO,  Class A-R, Class A-LR,  Class
M, Class B-1 and Class B-2 Certificates) used to price this Certificate: (i) the
amount  of  OID as a  percentage  of  the  initial  principal  balance  of  this
Certificate is approximately 25.68854167%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  12.81%; and (iii) the
amount of OID allocable to the short first accrual  period  (January 30, 1997 to
February  25,  1997) as a percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.15800231%.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT B-5
                     [FORM OF FACE OF CLASS B-5 CERTIFICATE]

THIS   CERTIFICATE  IS   SUBORDINATED  IN  RIGHT  OF  PAYMENT  TO  THE  CLASS  A
CERTIFICATES,  THE CLASS M CERTIFICATES,  THE CLASS B-1 CERTIFICATES,  THE CLASS
B-2  CERTIFICATES,  THE CLASS B-3 CERTIFICATES AND THE CLASS B-4 CERTIFICATES AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

THIS  CERTIFICATE  HAS NOT BEEN AND WILL NOT BE REGISTERED  UNDER THE SECURITIES
ACT OF 1933,  AS  AMENDED,  OR THE  SECURITIES  LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED  UNLESS IT IS REGISTERED  PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS  WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER  APPLICABLE  STATE LAW AND IS TRANSFERRED IN ACCORDANCE  WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING  AGREEMENT  REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT THE  TRANSFEREE  IS NOT AN EMPLOYEE  BENEFIT PLAN SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF
1974, AS AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986,
AS AMENDED (THE "CODE") OR ANY GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW  WHICH  IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"),  OR ANY PERSON  ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN
OR (B) SUBJECT TO CERTAIN  CONDITIONS  SET FORTH IN THE  POOLING  AND  SERVICING
AGREEMENT,  THAT THE SOURCE OF FUNDS USED TO  PURCHASE  THIS  CERTIFICATE  IS AN
"INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-1, CLASS B-5

     evidencing an interest in a pool of fixed interest rate, conventional,
         monthly pay, fully amortizing, first lien, one- to four-family
         residential mortgage loans, which may include loans secured by
           shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT ---------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of the Class B-5  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage loans, other
than the Fixed  Retained  Yield,  if any,  with respect  thereto,  and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights of the Class A Certificates,  the Class M Certificates  and each Subclass
of Class B Certificates  bearing a lower  numerical  designation as specified in
the Agreement,  any Class B-5 Distribution  Amount required to be distributed to
Holders  of  Class  B-5  Certificates  on such  Distribution  Date,  subject  to
adjustment,  in certain events, as specified in the Agreement.  The pass-through
rate on the Class B-5 Certificates  applicable to each Distribution Date will be
7.25% per annum. The amount of interest which accrues on this Certificate in any
month will be subject to reduction  with respect to any  Non-Supported  Interest
Shortfall and the interest  portion of certain  Realized Losses allocated to the
Class B-5 Certificates, as described in the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate  Register.  Notwithstanding the
above,  the final  distribution  in reduction of the  principal  balance of this
Certificate  will be made after due notice of the pendency of such  distribution
and only upon  presentation  and surrender of this  Certificate at the office or
agency  specified by the Trust  Administrator  for that purpose in the notice of
final distribution.

     No transfer of a Class B-5 Certificate will be made unless such transfer is
exempt from the  registration  requirements  of the  Securities  Act of 1933, as
amended,  and any applicable state securities laws or is made in accordance with
said Act and laws.  In the event that such a  transfer  is desired to be made by
the Holder hereof,  (i) the transferee will be required to execute an investment
letter in the form described in the Agreement and (ii) if such transfer is to be
made within  three  years from the later of (a) the date of initial  issuance of
the  Certificates  or (b) the last  date on which the  Seller  or any  affiliate
thereof was a Holder of the Certificates proposed to be transferred,  and unless
such transfer is made in reliance on Rule 144A of the Securities Act of 1933, as
amended, the Trust Administrator or the Seller may require the Holder to deliver
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trust  Administrator and the Seller that such transfer is exempt (describing
the applicable  exemption and the basis therefor) from or is being made pursuant
to the registration  requirements of the Securities Act of 1933, as amended, and
of any  applicable  statute of any state.  The Holder hereof  desiring to effect
such transfer shall, and does hereby agree to, indemnify the Trustee,  the Trust
Administrator,  the Seller, the Master Servicer,  and any Paying Agent acting on
behalf of the Trust  Administrator  against any liability that may result if the
transfer  is not so exempt or is not made in  accordance  with such  Federal and
state laws. In connection with any such transfer,  the Trust  Administrator will
also  require  (i) a  representation  letter,  in the form as  described  in the
Agreement,  stating  either  (a)  that the  transferee  is not a Plan and is not
acting on behalf of a Plan or using the assets of a Plan to effect such purchase
or (b) subject to certain conditions described in the Agreement, that the source
of funds used to purchase  this  Certificate  is an "insurance  company  general
account,"  or (ii) if such  transferee  is a Plan,  (a) an  opinion  of  counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
and the Seller with respect to certain matters and (b) such other  documentation
as the Seller or the Master Servicer may require, as described in the Agreement.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  is issued on January  30,  1997,  and based on its issue
price of 35.52153%, including accrued interest, and a stated redemption price at
maturity equal to its initial  principal  balance (plus five days of interest at
the  Pass-Through  Rate hereon),  is issued with original issue discount ("OID")
for  federal  income  tax  purposes.  Assuming  that  this  Certificate  pays in
accordance  with  projected cash flows  reflecting the Prepayment  Assumption of
200% SPA (as defined in the  Prospectus  Supplement  dated January 23, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-6, Class A-7, Class A-8, Class A-PO,  Class A-R, Class A-LR,  Class
M, Class B-1 and Class B-2 Certificates) used to price this Certificate: (i) the
amount  of  OID as a  percentage  of  the  initial  principal  balance  of  this
Certificate is approximately 64.57916667%;  (ii) the annual yield to maturity of
this Certificate,  compounded  monthly,  is approximately  31.60%; and (iii) the
amount of OID allocable to the short first accrual  period  (January 30, 1997 to
February  25,  1997) as a percentage  of the initial  principal  balance of this
Certificate, calculated using the exact method, is approximately 0.27421195%.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>


                                    EXHIBIT C

                      [Form of Face of Class M Certificate]

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A CERTIFICATES
AS DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

EXCEPT AS PROVIDED IN SECTION  5.02(C) OF THE  POOLING AND  SERVICING  AGREEMENT
REFERRED TO HEREIN,  THIS  CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A  REPRESENTATION  LETTER  STATING  EITHER (A)
THAT THE  TRANSFEREE  IS NOT AN EMPLOYEE  BENEFIT PLAN SUBJECT TO THE  FIDUCIARY
RESPONSIBILITY  PROVISIONS  OF THE EMPLOYEE  RETIREMENT  INCOME  SECURITY ACT OF
1974, AS AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986,
AS AMENDED (THE "CODE") OR ANY GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA,  SUBJECT  TO ANY  FEDERAL,  STATE OR LOCAL LAW  WHICH  IS, TO A  MATERIAL
EXTENT,  SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A  "PLAN"),  OR ANY  PERSON  INVESTING  THE  ASSETS OF A PLAN OR (B)  SUBJECT TO
CERTAIN  CONDITIONS SET FORTH IN THE POOLING AND SERVICING  AGREEMENT,  THAT THE
SOURCE OF FUNDS USED TO  PURCHASE  THIS  CERTIFICATE  IS AN  "INSURANCE  COMPANY
GENERAL ACCOUNT."


<PAGE>


                        MORTGAGE PASS-THROUGH CERTIFICATE
                             SERIES 1997-1, CLASS M


                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by


                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

     THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN, THE
SELLER,  THE MASTER  SERVICER,  THE TRUSTEE,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

     DISTRIBUTIONS  IN REDUCTION OF THE  PRINCIPAL  BALANCE OF THIS  CERTIFICATE
WILL BE MADE IN THE MANNER  DESCRIBED  IN THE POOLING AND  SERVICING  AGREEMENT.
ACCORDINGLY THE OUTSTANDING  PRINCIPAL  BALANCE OF THIS  CERTIFICATE AT ANY TIME
MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                    Cut-Off Date:   January 1, 1997

CUSIP No.:                         First Distribution Date:  February 25, 1997

Percentage Interest evidenced      Denomination:  $
by this Certificate: %


<PAGE>


     THIS CERTIFIES THAT ------------------------------- is the registered owner
of  the   Percentage   Interest   evidenced  by  this   Certificate  in  monthly
distributions to the Holders of the Class M Certificates with respect to a Trust
Estate consisting of a pool of fixed interest rate,  conventional,  monthly pay,
fully amortizing,  first lien, one- to four-family  residential  mortgage loans,
other than the Fixed Retained Yield, if any, with respect thereto, and which may
include loans secured by shares issued by cooperative housing  corporations (the
"Mortgage  Loans") formed by Norwest Asset Securities  Corporation  (hereinafter
called  the  "Seller",  which  term  includes  any  successor  entity  under the
Agreement referred to below). The Trust Estate was created pursuant to a Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Agreement") among the
Seller,  Norwest Bank Minnesota,  National Association,  as master servicer (the
"Master  Servicer"),  First  Union  National  Bank of North  Carolina,  as trust
administrator (the "Trust  Administrator") and Firstar Trust Company, as trustee
(the  "Trustee"),  a summary of certain of the pertinent  provisions of which is
set forth  hereinafter.  To the extent not defined herein, the capitalized terms
used herein have the  meanings  ascribed  to such terms in the  Agreement.  This
Certificate  is  issued  under  and is  subject  to the  terms,  provisions  and
conditions of the Agreement,  to which Agreement the Holder of this  Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

     Pursuant to the terms of the Agreement,  a distribution will be made on the
25th day of each month or, if such 25th day is not a Business  Day, the Business
Day immediately  following (the  "Distribution  Date"),  commencing on the first
Distribution  Date specified above, to the Person in whose name this Certificate
is  registered  at the close of business on the last  Business  Day of the month
preceding the month of such  distribution,  in an amount equal to the product of
the Percentage  Interest evidenced by this Certificate and, subject to the prior
rights of the Class A Certificates  as specified in the  Agreement,  any Class M
Distribution   Amount   required  to  be  distributed  to  Holders  of  Class  M
Certificates  on such  Distribution  Date,  subject  to  adjustment,  in certain
events, as specified in the Agreement.  The Class M Pass-Through Rate applicable
to each  Distribution Date will be 7.25% per annum. The amount of interest which
accrues on this  Certificate  in any month will be  subject  to  reduction  with
respect to any  Non-Supported  Interest  Shortfall  and the interest  portion of
certain Realized Losses  allocated to the Class M Certificates,  as described in
the Agreement.

     Distributions  on this  Certificate  will be made on behalf of the  Trustee
either by the  Master  Servicer  or by a Paying  Agent  appointed  by the Master
Servicer by check mailed to the address of the Person entitled thereto,  as such
name and address shall appear on the Certificate Register, unless such Person is
entitled to receive payments by wire transfer in immediately  available funds in
accordance with the Pooling and Servicing Agreement and such Person has notified
the Master  Servicer  pursuant to the Pooling and Servicing  Agreement that such
payments  are to be  made by  wire  transfer  of  immediately  available  funds.
Notwithstanding  the above, the final distribution in reduction of the principal
balance of this  Certificate  will be made after due notice of the  pendency  of
such  distribution and only upon  presentation and surrender of this Certificate
at the office or agency specified by the Trust Administrator for that purpose in
the notice of final distribution.

     No transfer of a Class M Certificate  will be made unless the Holder hereof
desiring to make any such transfer shall deliver to the Trust  Administrator (i)
a  representation  letter,  in the form as described in the  Agreement,  stating
either  (a) that the  transferee  is not a Plan and is not acting on behalf of a
Plan or using the assets of a Plan to effect  such  purchase  or (b)  subject to
certain conditions described in the Agreement,  that the source of funds used to
purchase this Certificate is an "insurance  company general account," or (ii) if
such  transferee is a Plan, (a) an opinion of counsel  acceptable to and in form
and  substance  satisfactory  to the Trust  Administrator  and the  Seller  with
respect to certain matters and (b) such other documentation as the Seller or the
Master Servicer may require, as described in the Agreement.

     Reference is hereby made to the further  provisions of this Certificate set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     This  Certificate  constitutes  a  "regular  interest"  in a  "real  estate
mortgage  investment  conduit" as those terms are defined in Section  860G(a)(1)
and  Section  860D,  respectively,  of the  Internal  Revenue  Code of 1986,  as
amended.

     Unless this Certificate has been  countersigned by an authorized officer of
the Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>


     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  January 30, 1997

                         First Union National Bank of North Carolina,
                           Trust Administrator

                         By----------------------------
                               Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>


                                    EXHIBIT D


                 [Form of Reverse of Series 1997-1 Certificates]


                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                  SERIES 1997-1

     This Certificate is one of a duly authorized  issue of Certificates  issued
in  several   Classes  and  Subclasses   designated  as  Mortgage   Pass-Through
Certificates  of the Series  specified  hereon (herein  collectively  called the
"Certificates").

     The Certificates are limited in right of payment to certain collections and
recoveries  respecting the Mortgage Loans,  all as more  specifically  set forth
herein and in the Agreement. In the event funds are advanced with respect to any
Mortgage  Loan by a Servicer,  the Master  Servicer or the Trust  Administrator,
such advances are  reimbursable  to such  Servicer,  the Master  Servicer or the
Trust  Administrator  to the extent  provided  in the  Agreement,  from  related
recoveries  on such  Mortgage  Loan or from  other  cash  that  would  have been
distributable to Certificateholders.

     As provided in the  Agreement,  withdrawals  from the  Certificate  Account
created for the benefit of Certificateholders may be made by the Master Servicer
from time to time for purposes other than  distributions to  Certificateholders,
such purposes including  reimbursement to a Servicer, the Master Servicer or the
Trust  Administrator,  as  applicable,  of advances made by such  Servicer,  the
Master Servicer or the Trust Administrator.

     The  Agreement  permits,  with certain  exceptions  therein  provided,  the
amendment of the Agreement and the modification of the rights and obligations of
the Seller, the Master Servicer,  the Trust  Administrator,  and the Trustee and
the  rights of the  Certificateholders  under the  Agreement  at any time by the
Seller,  the Master Servicer,  the Trust  Administrator and the Trustee with the
consent of the Holders of Certificates evidencing in the aggregate not less than
66 2/3% of the  Voting  Interests  of each  Class or  Subclass  of  Certificates
affected  thereby.  Any such consent by the Holder of this Certificate  shall be
conclusive  and  binding  on such  Holder  and upon all  future  holders of this
Certificate  and of any  Certificate  issued  upon  the  transfer  hereof  or in
exchange  hereof or in lieu hereof  whether or not  notation of such  consent is
made upon the Certificate.  The Agreement also permits the amendment  thereof in
certain  circumstances  without  the  consent  of  the  Holders  of  any  of the
Certificates.

     As provided in the Agreement and subject to certain limitations therein set
forth,  the  transfer of this  Certificate  is  registrable  in the  Certificate
Register upon surrender of this  Certificate for registration of transfer at the
office or agency  appointed  by the Trust  Administrator,  duly  endorsed by, or
accompanied  by an assignment  in the form below or other written  instrument of
transfer in form  satisfactory  to the Trust  Administrator  and the Certificate
Registrar,  duly executed by the Holder  hereof or such  Holder's  attorney duly
authorized in writing,  and thereupon one or more new Certificates of authorized
Denominations  evidencing  the same Class and Subclass and aggregate  Percentage
Interest will be issued to the designated transferee or transferees.

     The  Certificates  are issuable  only as  registered  Certificates  without
coupons in Classes and Denominations  specified in the Agreement. As provided in
the Agreement and subject to certain limitations therein set forth, Certificates
are exchangeable for new Certificates of authorized Denominations evidencing the
same Class and Subclass and aggregate Percentage  Interest,  as requested by the
Holder surrendering the same.

     No service  charge  will be made for any such  registration  of transfer or
exchange,  but the Trust Administrator or the Certificate  Registrar may require
payment  of a sum  sufficient  to  cover  any tax or other  governmental  charge
payable in connection therewith.

     The Seller, the Master Servicer,  the Trust Administrator,  the Trustee and
the Certificate Registrar, and any agent of the Seller, the Master Servicer, the
Trust  Administrator,  the Trustee or the Certificate  Registrar,  may treat the
Person in whose name this  Certificate is registered as the owner hereof for all
purposes,  and neither the Seller, the Master Servicer, the Trust Administrator,
the Trustee,  the Certificate  Registrar nor any such agent shall be affected by
notice to the contrary.

     The obligations created by the Agreement in respect of the Certificates and
the Trust Estate created  thereby shall  terminate upon the last action required
to be taken by the Trust  Administrator on the Final  Distribution Date pursuant
to the Agreement  following the earlier of (i) the payment or other  liquidation
(or advance with respect  thereto) of the last Mortgage Loan subject  thereto or
the  disposition  of all property  acquired upon  foreclosure or deed in lieu of
foreclosure  of any Mortgage  Loan, and (ii) the purchase by the Seller from the
Trust  Estate of all  remaining  Mortgage  Loans and all  property  acquired  in
respect of such Mortgage Loans; provided, however, that the Trust Estate will in
no event  continue  beyond the expiration of 21 years from the death of the last
survivor of the  descendants  of Joseph P. Kennedy,  the late  ambassador of the
United  States to the Court of St. James,  living on the date of the  Agreement.
The  Agreement  permits,  but does not  require,  the  Seller  to  purchase  all
remaining  Mortgage  Loans and all property  acquired in respect of any Mortgage
Loan at a price  determined as provided in the  Agreement.  The exercise of such
option will effect early retirement of the  Certificates,  the Seller's right to
exercise such option being subject to the Pool  Scheduled  Principal  Balance of
the Mortgage Loans as of the  Distribution  Date upon which the proceeds of such
repurchase  are  distributed  being less than ten  percent of the  Cut-Off  Date
Aggregate Principal Balance.


<PAGE>


                                   ASSIGNMENT

FOR VALUE RECEIVED,  the undersigned  hereby sell(s),  assign(s) and transfer(s)
unto ---------------------------------------------------------------------------
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 (Please print or typewrite name and address including postal zip code
                                  of assignee)

the  beneficial   interest   evidenced  by  the  within  Mortgage   Pass-Through
Certificate and hereby  authorizes the transfer of registration of such interest
to assignee on the Certificate Register of the Trust Estate.

     I (We) further direct the Certificate  Registrar to issue a new Certificate
of a like  Denomination  or  Percentage  Interest and Class or Subclass,  to the
above named assignee and deliver such Certificate to the following address:
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

Social Security or other Identifying Number of Assignee:

Dated:

                              -------------------------------------
                              Signature by or on behalf of assignor

                              -------------------------------------
                              Signature Guaranteed


<PAGE>


                            DISTRIBUTION INSTRUCTIONS

     The assignee should include the following for purposes of distribution:

     Distributions  shall  be made,  if the  assignee  is  eligible  to  receive
distributions in immediately available funds, by wire transfer or otherwise,  in
immediately   available   funds  to   ------------------------------------------
- ---------------------------  for the  account  of  -----------------------------
- ---------------------  account number -------------,  or, if mailed by check, to
- -------------------------------------------------------.  Applicable  statements
should be mailed to  -----------------------------------------------------------
- ---------------------------------------------.

     This information is provided by ----------------------,  the assignee named
above, or -----------------------------------, as its agent.


<PAGE>


                                    EXHIBIT E

                               CUSTODIAL AGREEMENT

     THIS CUSTODIAL  AGREEMENT (as amended and  supplemented  from time to time,
the "Agreement"),  dated as of -------------,  by and among FIRST UNION NATIONAL
BANK OF NORTH  CAROLINA,  not  individually,  but solely as Trust  Administrator
(including  its  successors  under the Pooling and Servicing  Agreement  defined
below,  the  "Trust   Administrator"),   NORWEST  ASSET  SECURITIES  CORPORATION
(together with any successor in interest, the "Seller"), NORWEST BANK MINNESOTA,
NATIONAL ASSOCIATION (together with any successor in interest or successor under
the Pooling and Servicing  Agreement  referred to below, the "Master  Servicer")
and ---------------------------  (together with any successor in interest or any
successor appointed hereunder, the "Custodian").


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

     WHEREAS,  the Seller,  the Master  Servicer,  the Trust  Administrator  and
Firstar  Trust  Company,  as trustee,  have entered into a Pooling and Servicing
Agreement  dated as of January  30, 1997  relating  to the  issuance of Mortgage
Pass-Through  Certificates,  Series  1997-1  (as in  effect  on the date of this
Agreement,  the "Original Pooling and Servicing  Agreement",  and as amended and
supplemented from time to time, the "Pooling and Servicing Agreement"); and

     WHEREAS,   the  Custodian  has  agreed  to  act  as  agent  for  the  Trust
Administrator  for the purposes of receiving and holding  certain  documents and
other  instruments  delivered  by the Seller  under the  Pooling  and  Servicing
Agreement,  all upon the terms and  conditions  and  subject to the  limitations
hereinafter set forth;

     NOW,  THEREFORE,  in consideration of the premises and the mutual covenants
and agreements  hereinafter set forth, the Trust Administrator,  the Seller, the
Master Servicer and the Custodian hereby agree as follows:

                                    ARTICLE I

                                   Definitions

     Capitalized  terms used in this Agreement and not defined herein shall have
the meanings  assigned in the Original Pooling and Servicing  Agreement,  unless
otherwise required by the context herein.

                                   ARTICLE II

                          Custody of Mortgage Documents

     Section 2.1. Custodian to Act as Agent;  Acceptance of Custodial Files. The
Custodian,  as the duly  appointed  agent of the Trust  Administrator  for these
purposes,  acknowledges  receipt  of the  Mortgage  Notes,  the  Mortgages,  the
assignments and other documents relating to the Mortgage Loans identified on the
schedule  attached hereto and declares that it holds and will hold such Mortgage
Notes,  Mortgages,  assignments  and other  documents and any similar  documents
received  by  the  Trust  Administrator  subsequent  to  the  date  hereof  (the
"Custodial Files") as agent for the Trust  Administrator,  in trust, for the use
and benefit of all present and future Certificateholders.

     Section 2.2. Recordation of Assignments. If any Custodial File includes one
or more  assignments  to the Trust  Administrator  of Mortgage Notes and related
Mortgages that have not been recorded,  each such assignment  shall be delivered
by  the  Custodian  to  the  Seller  for  the  purpose  of  recording  it in the
appropriate  public  office for real  property  records,  and the Seller,  at no
expense to the Custodian, shall promptly cause to be recorded in the appropriate
public office for real property  records each such  assignment and, upon receipt
thereof  from such  public  office,  shall  return each such  assignment  to the
Custodian.

     Section 2.3.  Review of Custodial  Files.  The  Custodian  agrees,  for the
benefit of  Certificateholders,  to review, in accordance with the provisions of
Section 2.01 of the Pooling and Servicing Agreement,  each Custodial File. If in
performing  the review  required  by this  Section 2.3 the  Custodian  finds any
document or documents  constituting  a part of a Custodial File to be missing or
defective in any material  respect,  the Custodian  shall promptly so notify the
Seller, the Master Servicer and the Trust Administrator.

     Section 2.4.  Notification of Breaches of  Representations  and Warranties.
Upon  discovery by the Custodian of a breach of any  representation  or warranty
made by the  Seller  or the  Master  Servicer  as set forth in the  Pooling  and
Servicing  Agreement,  the  Custodian  shall give prompt  written  notice to the
Seller, the Master Servicer and the Trust Administrator.

     Section 2.5.  Custodian to Cooperate;  Release of Custodial Files. Upon the
payment in full of any Mortgage Loan, or the receipt by the Master Servicer of a
notification  that  payment in full will be escrowed in a manner  customary  for
such purposes,  the Master Servicer shall immediately  notify the Custodian by a
certification  (which certification shall include a statement to the effect that
all amounts received or to be received in connection with such payment which are
required to be deposited in the Certificate  Account pursuant to Section 3.02 of
the Pooling and  Servicing  Agreement  have been or will be so  deposited)  of a
Servicing  Officer and shall request  delivery to it of the Custodial  File. The
Custodian agrees,  upon receipt of such  certification and request,  promptly to
release the related Custodial File to the Master Servicer.

     From time to time as is appropriate for the servicing or foreclosure of any
Mortgage Loan, the Master  Servicer shall deliver to the Custodian a certificate
of a Servicing  Officer  requesting  that  possession  of all,  or any  document
constituting  part of, the Custodial File be released to the Master Servicer and
certifying  as to the reason for such  release  and that such  release  will not
invalidate any insurance coverage provided in respect of the Mortgage Loan. With
such  certificate,  the Master Servicer shall deliver to the Custodian a receipt
signed by a Servicing Officer on behalf of the Master Servicer, and upon receipt
of the  foregoing,  the  Custodian  shall  deliver  the  Custodial  File or such
document to the Master Servicer.  The Master Servicer shall cause each Custodial
File or any document  therein so released to be returned to the  Custodian  when
the need  therefor  by the  Master  Servicer  no longer  exists,  unless (i) the
Mortgage Loan has been liquidated and the Liquidation  Proceeds  relating to the
Mortgage  Loan have been  deposited  in the  Certificate  Account  to the extent
required by the Pooling and Servicing  Agreement or (ii) the  Custodial  File or
such document has been delivered to an attorney, or to a public trustee or other
public official as required by law, for purposes of initiating or pursuing legal
action or other proceedings for the foreclosure of the Mortgaged Property either
judicially  or  non-judicially,  and the Master  Servicer  has  delivered to the
Custodian a  certificate  of a Servicing  Officer  certifying as to the name and
address  of the  Person  to which  such  Custodial  File or such  document  were
delivered  and the  purpose or purposes  of such  delivery.  In the event of the
liquidation of a Mortgage  Loan,  the Custodian  shall deliver such receipt with
respect thereto to the Master  Servicer upon deposit of the related  Liquidation
Proceeds in the  Certificate  Account to the extent  required by the Pooling and
Servicing Agreement.

     Section  2.6.  Assumption  Agreements.  In the  event  that any  assumption
agreement or substitution of liability agreement is entered into with respect to
any Mortgage  Loan subject to this  Agreement in  accordance  with the terms and
provisions of the Pooling and Servicing  Agreement,  the Master  Servicer  shall
notify the Custodian  that such  assumption or  substitution  agreement has been
completed by  forwarding  to the  Custodian  the original of such  assumption or
substitution agreement,  which copy shall be added to the related Custodial File
and, for all purposes,  shall be considered a part of such Custodial File to the
same extent as all other documents and instruments constituting parts thereof.

                                   ARTICLE III

                            Concerning the Custodian

     Section 3.1. Custodian a Bailee and Agent of the Trust Administrator.  With
respect to each Mortgage Note,  Mortgage and other documents  constituting  each
Custodian  File  which  are  delivered  to  the  Custodian,   the  Custodian  is
exclusively  the  bailee  and  agent  of the  Trust  Administrator,  holds  such
documents for the benefit of  Certificateholders  and undertakes to perform such
duties and only such  duties as are  specifically  set forth in this  Agreement.
Except upon compliance with the provisions of Section 2.5 of this Agreement,  no
Mortgage  Note,  Mortgage or other  document  constituting a part of a Custodial
File shall be delivered by the Custodian to the Seller or the Master Servicer or
otherwise released from the possession of the Custodian.

     Section 3.2.  Indemnification.  The Seller  hereby  agrees to indemnify and
hold the Custodian  harmless from and against all claims,  liabilities,  losses,
actions,  suits or proceedings at law or in equity, or any other expenses,  fees
or charges of any  character or nature,  which the  Custodian  may incur or with
which the  Custodian  may be  threatened  by reasons of its acting as  custodian
under this Agreement, including indemnification of the Custodian against any and
all expenses,  including  attorney's  fees if counsel for the Custodian has been
approved  by the  Seller,  and  the  cost  of  defending  any  action,  suit  or
proceedings  or  resisting  any  claim.  Notwithstanding  the  foregoing,  it is
specifically  understood and agreed that in the event any such claim, liability,
loss,  action,  suit or proceeding or other expense,  fees, or charge shall have
been caused by reason of any negligent act, negligent failure to act, or willful
misconduct  on the part of the  Custodian,  or which shall  constitute a willful
breach of its duties hereunder, the indemnification provisions of this Agreement
shall not apply.

     Section  3.3.  Custodian  May  Own  Certificates.   The  Custodian  in  its
individual or any other capacity may become the owner or pledgee of Certificates
with the same rights it would have if it were not Custodian.

     Section 3.4.  Master  Servicer to Pay  Custodian's  Fees and Expenses.  The
Master Servicer  covenants and agrees to pay to the Custodian from time to time,
and the Custodian shall be entitled to, reasonable compensation for all services
rendered by it in the exercise and  performance  of any of the powers and duties
hereunder of the  Custodian,  and the Master  Servicer will pay or reimburse the
Custodian  upon its  request  for all  reasonable  expenses,  disbursements  and
advances  incurred  or made  by the  Custodian  in  accordance  with  any of the
provisions of this  Agreement  (including the  reasonable  compensation  and the
expenses and  disbursements  of its counsel and of all persons not  regularly in
its employ), except any such expense,  disbursement or advance as may arise from
its negligence or bad faith.

     Section  3.5.  Custodian  May  Resign;   Trust   Administrator  May  Remove
Custodian.  The  Custodian  may resign from the  obligations  and duties  hereby
imposed upon it as such obligations and duties relate to its acting as Custodian
of the Mortgage  Loans.  Upon  receiving such notice of  resignation,  the Trust
Administrator  shall either take custody of the Custodial  Files itself and give
prompt notice  thereof to the Seller,  the Master  Servicer and the Custodian or
promptly appoint a successor Custodian by written instrument,  in duplicate, one
copy of which instrument  shall be delivered to the resigning  Custodian and one
copy to the successor Custodian. If the Trust Administrator shall not have taken
custody of the  Custodial  Files and no successor  Custodian  shall have been so
appointed and have accepted  resignation,  the resigning  Custodian may petition
any  court  of  competent  jurisdiction  for  the  appointment  of  a  successor
Custodian.

     The Trust  Administrator  may remove  the  Custodian  at any time.  In such
event, the Trust  Administrator  shall appoint, or petition a court of competent
jurisdiction  to  appoint,  a  successor  Custodian  hereunder.   Any  successor
Custodian  shall  be  a  depository   institution   subject  to  supervision  or
examination by federal or state authority and shall be able to satisfy the other
requirements contained in Section 3.7.

     Any  resignation or removal of the Custodian and appointment of a successor
Custodian  pursuant to any of the  provisions  of this  Section 3.5 shall become
effective upon acceptance of appointment by the successor  Custodian.  The Trust
Administrator  shall give prompt notice to the Seller and the Master Servicer of
the appointment of any successor  Custodian.  No successor  Custodian shall have
been appointed and accepted  appointment by the Trust Administrator  without the
prior approval of the Seller and the Master Servicer.

     Section 3.6. Merger or  Consolidation  of Custodian.  Any Person into which
the Custodian  may be merged or converted or with which it may be  consolidated,
or any Person  resulting from any merger,  conversion or  consolidation to which
the Custodian shall be a party, or any Person  succeeding to the business of the
Custodian,  shall be the  successor  of the  Custodian  hereunder,  without  the
execution  or filing of any paper or any  further  act on the part of any of the
parties hereto, anything herein to the contrary notwithstanding.

     Section  3.7.  Representations  of  the  Custodian.  The  Custodian  hereby
represents  that  it is a  depository  institution  subject  to  supervision  or
examination by a federal or state authority,  has a combined capital and surplus
of at least  $10,000,000 and is qualified to do business in the  jurisdiction in
which it will hold any Custodian File.

                                   ARTICLE IV

                            Miscellaneous Provisions

     Section 4.1. Notices. All notices, requests, consents and demands and other
communications required under this Agreement or pursuant to any other instrument
or  document  delivered  hereunder  shall be in writing  and,  unless  otherwise
specifically provided, may be delivered personally,  by telegram or telex, or by
registered or certified mail, postage prepaid,  return receipt requested, at the
addresses  specified  on  the  signature  page  hereof  (unless  changed  by the
particular  party whose address is stated herein by similar  notice in writing),
in which case the notice will be deemed delivered when received.

     Section 4.2.  Amendments.  No modification or amendment of or supplement to
this  Agreement  shall be valid or  effective  unless the same is in writing and
signed by all parties  hereto,  and neither the Seller,  the Master Servicer nor
the  Trust  Administrator  shall  enter  into any  amendment  hereof  except  as
permitted by the Pooling and Servicing Agreement.  The Trust Administrator shall
give prompt  notice to the  Custodian  of any  amendment  or  supplement  to the
Pooling and Servicing  Agreement and furnish the Custodian  with written  copies
thereof.

     Section 4.3.  Governing Law. This Agreement shall be deemed a contract made
under the laws of the State of New York and shall be  construed  and enforced in
accordance with and governed by the laws of the State of New York.

     Section  4.4.  Recordation  of  Agreement.   To  the  extent  permitted  by
applicable  law, this  Agreement is subject to  recordation  in all  appropriate
public offices for real property records in all the counties or other comparable
jurisdictions in which any or all of the properties subject to the Mortgages are
situated,  and in any other  appropriate  public  recording office or elsewhere,
such  recordation  to be effected by the Master  Servicer  and at its expense on
direction by the Trust Administrator,  but only upon direction accompanied by an
Opinion  of  Counsel  to  the  effect  that  such  recordation   materially  and
beneficially affects the interests of the Certificateholders.

     For the purpose of facilitating the recordation of this Agreement as herein
provided and for other purposes,  this Agreement may be executed  simultaneously
in any number of counterparts,  each of which counterparts shall be deemed to be
an  original,  and  such  counterparts  shall  constitute  but one and the  same
instrument.

     Section  4.5.  Severability  of  Provisions.  If  any  one or  more  of the
covenants,  agreements,  provisions or terms of this Agreement  shall be for any
reason whatsoever held invalid, then such covenants,  agreements,  provisions or
terms  shall be  deemed  severable  from the  remaining  covenants,  agreements,
provisions or terms of this Agreement and shall in no way affect the validity or
enforceability  of the other provisions of this Agreement or of the Certificates
or the rights of the holders thereof.


<PAGE>


     IN WITNESS  WHEREOF,  this Agreement is executed as of the date first above
written.

Address:                             FIRST UNION NATIONAL BANK OF NORTH
                                     CAROLINA

230 South Tryon Street               By:------------------------------------
Charlotte, North Carolina,  28288    Name:----------------------------------
                                     Title:---------------------------------



Address:                             NORWEST ASSET SECURITIES 
                                     CORPORATION
5325 Spectrum Drive
Frederick, Maryland  21703           By:------------------------------------
                                     Name:----------------------------------
                                     Title:---------------------------------



Address:                             NORWEST BANK MINNESOTA, NATIONAL
                                       ASSOCIATION
5325 Spectrum Drive
Frederick, Maryland  21703           By:------------------------------------
                                     Name:----------------------------------
                                     Title:---------------------------------


Address:                             [CUSTODIAN]

                                     By:------------------------------------
                                     Name:----------------------------------
                                     Title:---------------------------------


<PAGE>


STATE OF                            )
                                    :  ss.:
COUNTY OF                           )

     On this ---- day of ---------,  19--, before me, a notary public in and for
the State of ------------, personally appeared ---------------, known to me who,
being   by  me  duly   sworn,   did   depose   and  say  that  he   resides   at
- --------------------------;   that  he  is  the   ----------  of  Norwest  Asset
Securities Corporation a Delaware corporation,  one of the parties that executed
the  foregoing  instrument;  and that he signed his name thereto by order of the
Board of Directors of said corporation.


                                  ---------------------------------------
                                                Notary Public


[NOTARIAL SEAL]


<PAGE>


STATE OF                            )
                                    :  ss.:
COUNTY OF                           )

     On this ---- day of ---------,  19--, before me, a notary public in and for
the State of ------------, personally appeared ---------------, known to me who,
being   by  me  duly   sworn,   did   depose   and  say  that  he   resides   at
- --------------------------; that he is the ---------- of Norwest Bank Minnesota,
National  Association,  a national banking association,  one of the parties that
executed the foregoing instrument;  and that he signed his name thereto by order
of the Board of Directors of said corporation.


                                  ---------------------------------------
                                                Notary Public


[NOTARIAL SEAL]


<PAGE>


STATE OF                            )
                                    :  ss.:
COUNTY OF                           )

     On this --- day of --------,  19--,  before me, a notary  public in and for
the State of ------------, personally appeared ---------- ---------, known to me
who,  being  by  me  duly  sworn,   did  depose  and  say  that  he  resides  at
- --------------------------;  that he is the  -------------------- of First Union
National Bank of North  Carolina,  a national  banking  association,  one of the
parties that  executed  the  foregoing  instrument;  and that he signed his name
thereto by order of the Board of Directors of said association.


                                  ---------------------------------------
                                                Notary Public


[NOTARIAL SEAL]


<PAGE>


STATE OF                            )
                                    :  ss.:
COUNTY OF                           )

     On this ---- day of --------,  19-- , before me, a notary public in and for
the State of ----------,  personally appeared ---------- ----------, known to me
who,  being  by  me  duly  sworn,   did  depose  and  say  that  he  resides  at
- --------------------------;   that   he  is   the   -----------------------   of
- ----------------------,  a  -------------------------,  one of the parties  that
executed the foregoing instrument;  and that he signed his name thereto by order
of the Board of Directors of said association.


                                  ---------------------------------------
                                                Notary Public


 [NOTARIAL SEAL]


<PAGE>
                                  EXHIBIT F-1

            [Schedule of Mortgage Loans Serviced by Norwest Mortgage
                 from locations other than Frederick, Maryland]

<TABLE>
<CAPTION>

NASCOR
NMI / 1997-1  Exhibit F-1
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION
LOANS


(i)     (ii)                             (iii)    (iv)     (v)      (vi)    (vii)    (viii)   (ix)
- -----   --------------------------- ------------- -------- -------- ---------------- -----------------------
                                                           NET                                CUT-OFF
MORTGAGE                                          MORTGAGE MORTGAGE CURRENT ORIGINAL SCHEDULEDDATE
LOAN                                ZIP  PROPERTY INTEREST INTEREST MONTHLY TERM TO  MATURITY PRINCIPAL
NUMBER  CITY                 STATE  CODE TYPE     RATE     RATE     PAYMENT MATURITY DATE     BALANCE
- ------------------------------------------------------------------- ---------------- -----------------------
<S>     <C>                  <C>    <C>    <C>     <C>      <C>     <C>       <C>    <C>    <C>    

6990027 OGDEN                UT     84403  SFD     7.500    7.234   $2,187.75 180    1-Aug-10   $223,258.07
6990648 SAN FRANCISCO        CA     94108  LCO     6.500    6.234   $4,076.79 180    1-Mar-11   $452,200.81
6990748 WEST DES MOINES      IA     50265  SFD     6.750    6.484   $3,716.62 180    1-Mar-11   $406,110.82
6990760 GREENWOOD VILLAGE    CO     80122  SFD     6.750    6.484   $2,212.28 180    1-Mar-11   $241,732.58
6990972 SAN JUAN CAPISTRA    CA     92675  SFD     8.000    7.250   $3,822.61 180    1-Jun-11   $391,744.75
6991296 MINNETONKA           MN     55345  SFD     7.750    7.250   $2,936.79 180    1-Jul-11   $306,379.20
6991480 NEWTON               MA     02167  SFD     8.375    7.250   $9,774.27 180    1-Jul-11   $982,934.05
6991486 WASHINGTON           DC     20016  SFD     7.125    6.859   $4,601.63 180    1-Jul-11   $498,345.40
6991592 DEER PARK            IL     60010  SFD     8.125    7.250   $4,648.80 180    1-Aug-11   $475,806.74
6991615 SARATOGA             CA     95070  SFD     8.125    7.250   $6,258.74 180    1-Aug-11   $640,584.87
6991730 GOLDEN               CO     80401  LCO     7.875    7.250   $2,693.60 180    1-Jul-11   $278,938.48
6991746 EDWARDS              CO     81632  SFD     8.000    7.250   $5,554.73 180    1-Aug-11   $572,738.62
6991750 KINGWOOD             TX     77339  PUD     8.125    7.250   $2,595.94 180    1-Aug-11   $265,694.87
6991823 OAK BROOK            IL     60521  SFD     8.000    7.250   $5,733.92 180    1-Aug-11   $591,214.03
6992227 SANDS POINT          NY     11050  SFD     8.125    7.250   $2,888.65 180    1-Sep-11   $296,535.41
6992262 PARADISE VALLEY      AZ     85253  SFD     7.750    7.250   $4,706.38 180    1-Sep-11   $494,033.66
6992273 ORONO                MN     55356  SFD     8.000    7.250   $3,344.79 180    1-Sep-11   $345,913.53
6992274 GOLDEN               CO     80401  SFD     8.375    7.250   $2,736.80 180    1-Aug-11   $276,031.83
6992286 HOUSTON              TX     77006  SFD     8.250    7.250   $5,820.85 180    1-Sep-11   $593,146.32
6992288 BURR RIDGE           IL     60521  SFD     8.125    7.250   $4,814.41 180    1-Sep-11   $494,225.71
6992444 LONGMEADOW           MA     01106  SFD     8.000    7.250   $2,967.30 180    1-Sep-11   $306,874.75
6992449 FRIDAY HARBOR        WA     98250  SFD     7.875    7.250   $3,698.95 180    1-Sep-11   $385,253.99
6992515 MERCER ISLAND        WA     98040  SFD     8.250    7.250   $3,607.96 180    1-Aug-11   $366,571.50
6992549 AURORA               CO     80015  PUD     8.375    7.250   $2,345.82 180    1-Oct-11   $237,973.46
6992626 WARREN               NJ     07059  SFD     8.250    7.250   $3,880.56 180    1-Oct-11   $376,885.17
6992634 WEST LINN            OR     97068  SFD     7.875    7.250   $2,200.41 180    1-Sep-11   $229,261.58
6992648 INVER GROVE HTS      MN     55076  SFD     8.125    7.250   $2,261.82 180    1-Sep-11   $232,187.20
6992662 SAN MATEO            CA     94402  PUD     7.750    7.250   $1,572.87 180    1-Sep-11   $164,904.76
6992671 ENGLEWOOD            CO     80111  SFD     8.000    7.250   $2,484.70 180    1-Oct-11   $257,730.83
6992681 CHICAGO              IL     60614  SFD     7.875    7.250   $4,162.75 180    1-Oct-11   $435,027.29
6992699 WAKE FOREST          NC     27587  SFD     8.000    7.250   $2,150.22 180    1-Sep-11   $221,990.09
6992703 INDIANAPOLIS         IN     46256  SFD     8.250    7.250   $5,333.52 168    1-May-10   $516,574.59
6992715 MINNEAPOLIS          MN     55416  SFD     7.750    7.250   $3,266.23 180    1-Oct-11   $343,685.58
6992730 MILL VALLEY          CA     94941  SFD     7.375    7.109   $9,199.24 180    1-Apr-11   $971,834.00
6992779 CHROMO               CO     81128  SFD     8.375    7.250   $2,345.82 180    1-Oct-11   $237,367.16
6992780 SIOUX FALLS          SD     57108  SFD     8.375    7.250   $3,166.86 180    1-Oct-11   $321,264.17
6992781 BRIARCLIFF MANOR     NY     10510  PUD     8.000    7.250   $2,236.23 180    1-Aug-11   $230,573.47
6992803 QUARTZ HILL AREA     CA     93536  SFD     7.875    7.250   $474.22   180    1-Sep-11    $49,409.85
6992812 MCLEAN               VA     22102  SFD     7.625    7.250   $2,802.39 180    1-Sep-11   $290,758.55
6992849 CHANHASSEN           MN     55317  SFD     7.750    7.250   $2,353.19 180    1-Oct-11   $247,769.83
6992864 MINNEAPOLIS          MN     55416  SFD     8.000    7.250   $2,752.28 180    1-Oct-11   $285,486.48
6992887 HINSDALE             IL     60521  SFD     8.000    7.250   $3,631.48 180    1-Oct-11   $376,627.99
6992896 SAN JOSE             CA     95130  SFD     8.250    7.250   $2,455.43 180    1-Oct-11   $250,939.10
6992932 EDINA                MN     55439  PUD     8.000    7.250   $2,790.50 180    1-Oct-11   $289,451.59
6992935 DUXBURY              MA     02331  SFD     8.250    7.250   $3,386.18 180    1-Sep-11   $345,053.00
6992956 SCOTTSDALE           AZ     85262  SFD     7.625    7.250   $3,502.99 180    1-Oct-11   $371,618.04
6992961 SCOTTSDALE           AZ     85260  SFD     7.000    6.734   $2,067.31 180    1-Oct-11   $227,810.35
6992982 LIVERMORE            CA     94550  SFD     8.125    7.250   $2,356.62 180    1-Oct-11   $242,633.30
6992987 BRECKENRIDGE         CO     80424  SFD     8.000    7.250   $2,599.37 180    1-Oct-11   $269,624.86
6992988 ALGONQUIN            IL     60102  SFD     8.375    7.250   $2,588.22 180    1-Oct-11   $262,411.63
6993010 COLUMBIA             MD     21044  SFD     7.875    7.250   $3,222.36 180    1-Oct-11   $336,752.16
6993016 KINGS POINT          NY     11024  SFD     8.625    7.250   $1,061.53 180    1-Nov-11   $106,412.96
6993017 OAKLAND              CA     94618  SFD     7.750    7.250   $5,881.09 180    1-Oct-11   $618,387.73
6993021 WESTFIELD            NJ     07090  SFD     7.875    7.250   $3,319.57 180    1-Oct-11   $346,911.74
6993064 ELK GROVE            CA     95624  SFD     8.125    7.250   $7,221.62 180    1-Nov-11   $735,664.64
6993097 MELBOURNE            FL     32935  PUD     8.375    7.250   $874.80   180    1-Oct-11    $88,744.26
6993102 MINNETONKA           MN     55305  SFD     7.875    7.250   $3,395.45 180    1-Oct-11   $354,841.14
6993117 COLORADO SPRINGS     CO     80906  SFD     8.000    7.250   $2,257.73 180    1-Oct-11   $234,188.13
6993137 HUNT VALLEY          MD     21030  SFD     8.000    7.250   $2,293.57 180    1-Oct-11   $237,905.39
6993149 EDINA                MN     55436  SFD     7.250    6.984   $2,738.59 180    1-Oct-11   $297,066.32
6993174 COTUIT               MA     02635  SFD     7.875    7.250   $2,921.23 180    1-Oct-11   $305,282.30
6993175 HONOLULU             HI     96815  PUD     8.375    7.250   $6,353.27 180    1-Oct-11   $644,511.41
6993183 HAIKU                HI     96708  SFD     7.375    7.109   $1,195.90 180    1-Oct-11   $128,697.38
6993203 NEW YORK             NY     10023  LCO     7.750    7.250   $4,706.38 180    1-Oct-11   $495,539.68
6993204 SANDY                UT     84092  PUD     7.375    7.109   $2,391.80 180    1-Nov-11   $258,407.36
6993227 SARATOGA             CA     95070  SFD     7.750    7.250   $2,823.83 180    1-Oct-11   $297,180.78
6993234 SAN RAFAEL           CA     94901  SFD     7.750    7.250   $2,226.12 180    1-Oct-11   $233,830.11
6993237 CLACKAMAS            OR     97015  SFD     8.375    7.250   $3,855.95 180    1-Oct-11   $387,712.69
6993248 SAN JOSE             CA     95138  SFD     7.250    6.984   $4,147.14 180    1-Oct-11   $450,067.30
6993271 SAN JOSE             CA     95119  SFD     7.875    7.250   $2,342.68 180    1-Oct-11   $244,820.54
6993274 DARNESTOWN           MD     20878  SFD     7.500    7.234   $2,201.65 180    1-Nov-11   $225,035.97
6993276 HOPKINTON            MA     01748  SFD     7.500    7.234   $2,558.55 180    1-Oct-11   $273,483.69
6993304 WAYZATA              MN     55391  SFD     8.250    7.250   $1,940.28 180    1-Nov-11   $198,865.55
6993308 EL CAJON             CA     92019  SFD     7.750    7.250   $2,070.81 180    1-Oct-11   $218,037.45
6993355 RANCHO SANTA FE      CA     92067  SFD     8.000    7.250   $5,256.09 180    1-Nov-11   $546,810.56
6993375 FAIRFAX STATION      VA     22039  SFD     7.375    7.109   $2,713.77 180    1-Oct-11   $292,281.10
6993377 GREENBROOK           NJ     07060  SFD     8.000    7.250   $2,293.57 180    1-Nov-11   $238,608.24
6993395 RICHMOND             VA     23233  SFD     8.625    7.250   $4,017.43 180    1-Nov-11   $402,728.34
6993403 WEST LAKELAND TWN    MN     55082  SFD     8.125    7.250   $3,707.10 180    1-Nov-11   $382,791.89
6993416 MOHAVE VALLEY        AZ     86440  SFD     8.250    7.250   $2,095.50 180    1-Oct-11   $214,155.88
6993418 POUGHKEEPSIE         NY     12603  SFD     7.500    7.234   $2,112.85 180    1-Nov-11   $226,539.00
6993439 HERMISTON            OR     97838  SFD     7.875    7.250   $3,035.04 180    1-Oct-11   $317,176.43
6993447 ATLANTA              GA     30328  SFD     8.000    7.250   $2,082.37 180    1-Nov-11   $216,636.40
6993497 WHITTIER             CA     90605  SFD     7.750    7.250   $5,722.96 180    1-Nov-11   $604,395.82
6993521 RENO                 NV     89509  SFD     8.000    7.250   $3,990.80 180    1-Oct-11   $413,955.41
6993523 PARADISE VALLEY      AZ     85253  SFD     7.375    7.109   $3,854.48 180    1-Nov-11   $416,433.38
6993534 BIG PINE KEY         FL     33043  SFD     8.625    7.250   $1,496.55 180    1-Sep-11   $149,182.87
6993542 OREM                 UT     84058  SFD     8.500    7.250   $827.18   180    1-Nov-11    $83,534.00
6993545 EUGENE               OR     97401  SFD     8.000    7.250   $1,911.30 180    1-Oct-11   $198,254.51
6993577 HARPER               TX     78631  SFD     7.875    7.250   $2,323.70 180    1-Nov-11   $243,563.52
6993579 SANTA CRUZ           CA     95062  PUD     8.000    7.250   $2,341.35 180    1-Nov-11   $243,579.24
6993591 PHILADELPHIA         PA     19118  SFD     7.250    6.984   $4,856.43 180    1-Nov-11   $528,705.55
6993592 PARK CITY            UT     84060  LCO     8.000    7.250   $3,344.78 180    1-Nov-11   $347,970.36
6993601 FORT LAUDERDALE      FL     33331  PUD     8.250    7.250   $6,305.91 180    1-Nov-11   $646,313.05
6993602 LEXINGTON PARK       MD     20653  SFD     7.000    6.734   $4,089.04 180    1-Nov-11   $452,051.07
6993608 ST MICHAEL           MN     55376  SFD     7.875    7.250   $3,224.73 180    1-Nov-11   $338,006.52
6993619 NORTH SALEM          NY     10567  SFD     7.750    7.250   $2,070.81 180    1-Nov-11   $218,695.85
6993620 SWANTON              MD     21561  SFD     7.750    7.250   $2,362.60 180    1-Nov-11   $249,512.09
6993629 ORONO                MN     55356  SFD     7.375    7.109   $2,686.18 180    1-Nov-11   $290,211.32
6993656 CORNELIUS            NC     28031  SFD     7.875    7.250   $9,171.51 180    1-Nov-11   $961,330.31
6993668 SCOTTSDALE           AZ     85251  SFD     7.875    7.250   $2,845.35 180    1-Nov-11   $298,085.38
6993676 BASALT               CO     81621  SFD     8.000    7.250   $2,379.57 180    1-Nov-11   $247,556.06
6993703 SAN DIEGO            CA     92130  PUD     7.625    7.250   $5,069.06 180    1-Oct-11   $537,756.12
6993731 ALBUQUERQUE          NM     87102  SFD     8.125    7.250   $5,464.36 180    1-Nov-11   $556,676.77
6993734 PENN VALLEY          PA     19072  SFD     7.250    6.984   $3,468.88 180    1-Dec-11   $378,826.95
6993754 MURRAY               UT     84107  SFD     7.500    7.234   $2,206.29 180    1-Nov-11   $236,557.93
6993759 ALBUQUERQUE          NM     87107  SFD     7.625    7.250   $2,335.32 180    1-Dec-11   $249,253.22
6993760 KENNETT SQUARE       PA     19348  SFD     7.375    7.109   $2,514.15 180    1-Nov-11   $271,625.89
6993773 SAN FRANCISCO        CA     94121  SFD     8.000    7.250   $3,822.61 180    1-Nov-11   $395,317.78
6993776 MONTE SERENO         CA     95030  SFD     7.375    7.109   $2,759.77 180    1-Nov-11   $298,162.33
6993793 DOVER                MA     02030  SFD     8.000    7.250   $2,866.96 180    1-Nov-11   $298,260.30
6993795 RIDGEWOOD            NJ     07450  SFD     7.875    7.250   $8,627.77 120    1-Dec-06   $711,064.42
6993819 ALGONQUIN            IL     60102  SFD     8.375    7.250   $2,316.50 180    1-Nov-11   $235,670.50
6993841 SUMMERFIELD          NC     27358  SFD     7.375    7.109   $2,318.21 180    1-Dec-11   $251,230.39
6993878 MINNETONKA           MN     55345  SFD     7.750    7.250   $2,823.83 180    1-Nov-11   $298,221.62
6993879 EDINA                MN     55439  SFD     7.750    7.250   $3,158.92 180    1-Nov-11   $333,610.59
6993897 SAN MARINO           CA     91108  SFD     7.875    7.250   $2,465.97 180    1-Nov-11   $258,475.57
6993906 WESTON               FL     33326  PUD     7.625    7.250   $2,720.19 180    1-Nov-11   $289,454.76
6993927 MALVERN              PA     19355  SFD     7.750    7.250   $3,270.93 180    1-Nov-11   $345,440.05
6993945 HO HO KUS            NJ     07423  SFD     7.875    7.250   $5,690.70 180    1-Dec-11   $598,246.80
6993964 MINNETONKA           MN     55305  SFD     7.500    7.234   $2,781.04 180    1-Dec-11   $299,093.96
6993974 MUKILTEO             WA     98275  SFD     8.000    7.250   $2,389.13 180    1-Nov-11   $248,550.26
6993981 CATALDO              ID     83814  SFD     7.875    7.250   $3,319.57 180    1-Dec-11   $348,977.31
6993983 MANALAPAN            NJ     07726  SFD     7.750    7.250   $2,164.93 180    1-Dec-11   $229,320.49
6993986 RANDOLPH TWP         NJ     07869  SFD     7.750    7.250   $2,997.02 180    1-Dec-11   $317,459.31
6994003 NAPERVILLE           IL     60565  SFD     7.250    6.984   $2,501.59 180    1-Nov-11   $272,341.01
6994007 PARADISE VALLEY      AZ     85253  SFD     7.500    7.234   $4,171.56 180    1-Dec-11   $448,640.94
6994016 LAFAYETTE            CO     80026  SFD     7.750    7.250   $2,530.62 180    1-Dec-11   $268,055.70
6994031 TURLOCK              CA     95382  SFD     7.000    6.734   $2,696.48 180    1-Dec-11   $299,053.52
6994040 SAN JOSE             CA     95138  PUD     7.750    7.250   $2,729.70 180    1-Nov-11   $285,995.93
6994059 LOS ANGELES          CA     91602  SFD     7.250    6.984   $7,302.90 180    1-Dec-11   $797,530.43
6994063 WESTCLIFFE           CO     81252  SFD     7.875    7.250   $1,896.90 180    1-Nov-11   $198,827.36
6994067 FARMINGTON           CT     06085  SFD     7.375    7.109   $2,119.50 180    1-Dec-11   $229,696.50
6994073 TIGARD               OR     97224  SFD     7.750    7.250   $3,059.15 180    1-Dec-11   $324,039.81
6994097 PHOENIX              AZ     85016  SFD     7.500    7.234   $3,244.54 180    1-Dec-11   $348,942.96
6994099 SEATTLE              WA     98155  SFD     7.375    7.109   $916.24   180    1-Dec-11    $99,295.88
6994106 OMAHA                NE     68144  SFD     8.125    7.250   $8,184.50 180    1-Oct-11   $842,662.67
6994113 AUSTIN               TX     78746  SFD     7.250    6.984   $2,053.94 180    1-Dec-11   $224,305.44
6994118 SCOTTSDALE           AZ     85260  SFD     8.375    7.250   $4,214.66 180    1-Dec-11   $429,994.76
6994143 WILMINGTON           DE     19803  SFD     7.375    7.109   $2,483.79 180    1-Nov-11   $268,346.10
6994164 LAKEWOOD             CO     80228  SFD     7.625    7.250   $2,844.43 180    1-Dec-11   $303,590.41
6994179 SCOTTSDALE           AZ     85255  PUD     7.875    7.250   $2,475.45 180    1-Dec-11   $260,237.36
6994181 METAIRIE             LA     70006  SFD     7.375    7.109   $2,824.16 180    1-Dec-11   $306,062.61
6994196 LUTHERVILLE          MD     21093  SFD     8.500    7.250   $4,766.14 180    1-Nov-11   $481,314.91
6994216 PALM DESERT          CA     91111  LCO     7.500    7.234   $6,025.58 180    1-Dec-11   $647,203.53
6994227 DALLAS               TX     75230  SFD     7.625    7.250   $2,909.81 180    1-Nov-11   $309,633.11
6994244 ROCHESTER            MN     55901  SFD     7.375    7.109   $2,590.50 180    1-Dec-11   $280,740.17
6994257 DOWNERS GROVE        IL     60515  SFD     7.750    7.250   $3,765.10 180    1-Nov-11   $397,628.83
6994267 DENVER               CO     80222  SFD     7.500    7.234   $2,781.04 180    1-Dec-11   $299,093.96
6994273 RANCHO SANTA FE      CA     92067  PUD     7.625    7.250   $3,970.05 180    1-Dec-11   $423,730.47
6994276 FOSTER CITY          CA     94404  SFD     7.500    7.234   $3,396.57 180    1-Dec-11   $365,293.43
6994278 SCOTTSDALE           AZ     85259  PUD     7.875    7.250   $2,216.05 180    1-Dec-11   $232,967.28
6994292 MOBILE               AL     36695  PUD     7.750    7.250   $2,372.01 180    1-Dec-11   $251,255.49
6994295 LAFAYETTE            CO     80301  SFD     7.375    7.109   $5,979.50 180    1-Dec-11   $648,015.29
6994296 COLORADO SPRINGS     CO     80906  PUD     7.500    7.234   $5,042.95 180    1-Dec-11   $542,357.05
6994306 MIDDLETOWN           NJ     07748  SFD     8.000    7.250   $2,558.76 180    1-Dec-11   $266,976.24
6994308 AUSTIN               TX     78703  SFD     7.875    7.250   $1,422.67 180    1-Dec-11   $149,561.71
6994322 LAS VEGAS            NV     89113  PUD     7.375    7.109   $4,599.62 180    1-Dec-11   $498,473.30
6994325 EUGENE               OR     97405  PUD     7.875    7.250   $2,546.59 180    1-Oct-11   $265,215.08
6994338 NAPA                 CA     94558  SFD     7.500    7.234   $3,782.21 180    1-Dec-11   $406,767.79
6994343 SUSSEX               WI     53089  SFD     7.625    7.250   $2,417.06 180    1-Dec-11   $257,977.08
6994345 RENO                 NV     89511  SFD     7.375    7.109   $4,121.26 180    1-Jan-12   $448,000.00
6994347 ROCKVILLE            MD     20853  SFD     7.750    7.250   $2,588.51 180    1-Jan-12   $275,000.00
6994353 MINNEAPOLIS          MN     55401  LCO     7.500    7.234   $2,750.45 180    1-Jan-12   $296,700.00
6994369 ROCHESTER            MN     55902  SFD     8.000    7.250   $3,256.87 180    1-Dec-11   $339,815.13
6994391 ALEXANDRIA           VA     22314  THS     6.750    6.484   $3,305.14 180    1-Dec-11   $372,295.80
6994402 GREAT FALLS          VA     22066  SFD     8.000    7.250   $3,507.24 180    1-Dec-11   $365,939.43
6994407 FLORENCE             SC     29501  SFD     7.500    7.234   $2,217.41 180    1-Dec-11   $238,477.59
6994408 CORNELIUS            NC     28031  SFD     8.125    7.250   $2,811.62 180    1-Nov-11   $290,325.27
6994436 CARLSBAD             CA     92008  SFD     7.875    7.250   $2,276.28 180    1-Dec-11   $239,298.72
6994483 GERMANTOWN           TN     38139  SFD     6.875    6.609   $2,710.35 180    1-Dec-11   $302,930.74
6994498 SPRINGVILLE          UT     84663  SFD     8.125    7.250   $2,233.89 180    1-Jan-12   $232,000.00
6994502 LAS VEGAS            NV     89134  SFD     7.625    7.250   $2,802.39 180    1-Dec-11   $299,103.86
6994524 LIBERTYVILLE         IL     60048  SFD     7.375    7.109   $2,778.17 180    1-Dec-11   $301,077.87
6994539 ESTES PARK           CO     80517  SFD     7.500    7.234   $2,382.42 180    1-Jan-12   $257,000.00
6994548 SAN DIEGO            CA     92130  SFD     7.125    6.859   $2,761.88 180    1-Dec-11   $303,948.46
6994553 CARLSBAD             CA     92008  SFD     7.750    7.250   $2,061.39 180    1-Dec-11   $218,352.98
6994555 PINEHURST            NC     28374  PUD     7.375    7.109   $2,299.81 180    1-Dec-11   $248,786.12
6994572 MONTEREY             CA     93940  SFD     7.500    7.234   $2,867.94 180    1-Dec-11   $308,440.65
6994573 ARCADIA              CA     91006  SFD     7.500    7.234   $2,920.09 180    1-Dec-11   $314,048.66
6994574 SALT LAKE CITY       UT     84108  SFD     7.250    6.984   $4,564.31 180    1-Jan-12   $500,000.00
6994579 MANHATTAN BEACH      CA     90266  PUD     7.000    6.734   $2,336.95 180    1-Jan-12   $260,000.00
6994590 MERTON               WI     53056  SFD     8.000    7.250   $3,631.48 180    1-Jan-12   $380,000.00
6994593 WHITEHOUSE STATIO    NJ     08889  SFD     7.625    7.250   $2,671.61 180    1-Jan-12   $286,000.00
6994612 BUTTE                MT     59701  SFD     7.875    7.250   $3,082.46 180    1-Dec-11   $324,050.35
6994619 LONG LAKE            MN     55356  SFD     8.250    7.250   $2,283.51 180    1-Dec-11   $234,713.72
6994633 POTOMAC              MD     20854  PUD     7.500    7.234   $3,863.97 180    1-Jan-12   $416,820.00
6994660 GREENTOWN            PA     18426  SFD     8.375    7.250   $1,227.65 180    1-Jan-12   $125,600.00
6994668 STERLING             VA     20165  SFD     6.750    6.484   $1,946.80 180    1-Jan-12   $220,000.00
6994670 SILVER SPRING        MD     20906  SFD     7.625    7.250   $2,283.01 180    1-Dec-11   $235,326.64

                                                                                              $65,213,664.16
<S>              <C>

COUNT:                   190
WAC:             7.770488502
WAM:              176.621914
WALTV:           68.39907164
</TABLE>

<TABLE>
<CAPTION>

NASCOR
NMI / 1997-1  Exhibit F-1
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION
LOANS


(i)     (ii)                 (x)  (xi)   (xii)    (xiii) (xiv)    (xv)   (xvi)
- -----   ------------------------------------------------------------------------

MORTGAGE                                MORTGAGE          T.O.P.   MASTER  FIXED
LOAN                              SUB-  INSURANCE SERVICE MORTGAGE SERVICE RETAINED
NUMBER  CITY                 LTV  SIDY  CODE      FEE     LOAN     FEE     YIELD
- --------------------------------------------------------------------------------
<S>     <C>                  <C>   <C>     <C>     <C>             <C>     <C>

6990027 OGDEN                80.00                 0.250           0.016   0.000
6990648 SAN FRANCISCO        40.70                 0.250           0.016   0.000
6990748 WEST DES MOINES      70.00                 0.250           0.016   0.000
6990760 GREENWOOD VILLAGE    57.80                 0.250           0.016   0.000
6990972 SAN JUAN CAPISTRA    62.99                 0.250           0.016   0.484
6991296 MINNETONKA           80.00                 0.250           0.016   0.234
6991480 NEWTON               53.05                 0.250           0.016   0.859
6991486 WASHINGTON           80.00                 0.250           0.016   0.000
6991592 DEER PARK            79.99                 0.250           0.016   0.609
6991615 SARATOGA             43.39                 0.250           0.016   0.609
6991730 GOLDEN               80.00                 0.250           0.016   0.359
6991746 EDWARDS              75.00                 0.250           0.016   0.484
6991750 KINGWOOD             80.00                 0.250           0.016   0.609
6991823 OAK BROOK            77.42                 0.250           0.016   0.484
6992227 SANDS POINT          37.50                 0.250           0.016   0.609
6992262 PARADISE VALLEY      67.06                 0.250           0.016   0.234
6992273 ORONO                60.64                 0.250           0.016   0.484
6992274 GOLDEN               62.22                 0.250           0.016   0.859
6992286 HOUSTON              80.00                 0.250           0.016   0.734
6992288 BURR RIDGE           44.45                 0.250           0.016   0.609
6992444 LONGMEADOW           90.00          33     0.250           0.016   0.484
6992449 FRIDAY HARBOR        67.24                 0.250           0.016   0.359
6992515 MERCER ISLAND        80.00                 0.250           0.016   0.734
6992549 AURORA               48.49                 0.250           0.016   0.859
6992626 WARREN               44.94                 0.250           0.016   0.734
6992634 WEST LINN            80.00                 0.250           0.016   0.359
6992648 INVER GROVE HTS      86.70          12     0.250           0.016   0.609
6992662 SAN MATEO            37.98                 0.250           0.016   0.234
6992671 ENGLEWOOD            77.61                 0.250           0.016   0.484
6992681 CHICAGO              70.00                 0.250           0.016   0.359
6992699 WAKE FOREST          89.68          13     0.250           0.016   0.484
6992703 INDIANAPOLIS         80.00                 0.250           0.016   0.734
6992715 MINNEAPOLIS          70.96                 0.250           0.016   0.234
6992730 MILL VALLEY          61.92                 0.250           0.016   0.000
6992779 CHROMO               80.00                 0.250           0.016   0.859
6992780 SIOUX FALLS          80.00                 0.250           0.016   0.859
6992781 BRIARCLIFF MANOR     90.00          01     0.250           0.016   0.484
6992803 QUARTZ HILL AREA     41.67                 0.250           0.016   0.359
6992812 MCLEAN               36.28                 0.250           0.016   0.109
6992849 CHANHASSEN           70.80                 0.250           0.016   0.234
6992864 MINNEAPOLIS          78.90                 0.250           0.016   0.484
6992887 HINSDALE             43.49                 0.250           0.016   0.484
6992896 SAN JOSE             74.99                 0.250           0.016   0.734
6992932 EDINA                80.00                 0.250           0.016   0.484
6992935 DUXBURY              80.00                 0.250           0.016   0.734
6992956 SCOTTSDALE           55.56                 0.250           0.016   0.109
6992961 SCOTTSDALE           48.73                 0.250           0.016   0.000
6992982 LIVERMORE            70.00                 0.250           0.016   0.609
6992987 BRECKENRIDGE         80.00                 0.250           0.016   0.484
6992988 ALGONQUIN            79.52                 0.250           0.016   0.859
6993010 COLUMBIA             75.00                 0.250           0.016   0.359
6993016 KINGS POINT          11.89                 0.250           0.016   1.109
6993017 OAKLAND              78.10                 0.250           0.016   0.234
6993021 WESTFIELD            72.92                 0.250           0.016   0.359
6993064 ELK GROVE            50.00                 0.250           0.016   0.609
6993097 MELBOURNE            64.16                 0.250           0.016   0.859
6993102 MINNETONKA           79.91                 0.250           0.016   0.359
6993117 COLORADO SPRINGS     75.00                 0.250           0.016   0.484
6993137 HUNT VALLEY          78.18                 0.250           0.016   0.484
6993149 EDINA                52.63                 0.250           0.016  0.000
6993174 COTUIT               80.00                 0.250           0.016  0.359
6993175 HONOLULU             68.42                 0.250           0.016  0.859
6993183 HAIKU                48.15                 0.250           0.016  0.000
6993203 NEW YORK             73.53                 0.250           0.016  0.234
6993204 SANDY                62.05                 0.250           0.016  0.000
6993227 SARATOGA             38.12                 0.250           0.016  0.234
6993234 SAN RAFAEL           66.62                 0.250           0.016  0.234
6993237 CLACKAMAS            75.00                 0.250           0.016  0.859
6993248 SAN JOSE             80.00                 0.250           0.016  0.000
6993271 SAN JOSE             79.98                 0.250           0.016  0.359
6993274 DARNESTOWN           63.33                 0.250           0.016  0.000
6993276 HOPKINTON            80.00                 0.250           0.016  0.000
6993304 WAYZATA              51.28                 0.250           0.016  0.734
6993308 EL CAJON             75.86                 0.250           0.016  0.234
6993355 RANCHO SANTA FE      46.81                 0.250           0.016  0.484
6993375 FAIRFAX STATION      74.68                 0.250           0.016  0.000
6993377 GREENBROOK           49.48                 0.250           0.016  0.484
6993395 RICHMOND             75.00                 0.250           0.016  1.109
6993403 WEST LAKELAND TWN    70.00                 0.250           0.016  0.609
6993416 MOHAVE VALLEY        52.30                 0.250           0.016  0.734
6993418 POUGHKEEPSIE         79.97                 0.250           0.016  0.000
6993439 HERMISTON            80.00                 0.250           0.016  0.359
6993447 ATLANTA              91.94          12     0.250           0.016  0.484
6993497 WHITTIER             80.00                 0.250           0.016  0.234
6993521 RENO                 80.00                 0.250           0.016  0.484
6993523 PARADISE VALLEY      59.94                 0.250           0.016  0.000
6993534 BIG PINE KEY         70.00                 0.250           0.016  1.109
6993542 OREM                 39.25                 0.250           0.016  0.984
6993545 EUGENE               35.18                 0.250           0.016  0.484
6993577 HARPER               79.67                 0.250           0.016  0.359
6993579 SANTA CRUZ           70.00                 0.250           0.016  0.484
6993591 PHILADELPHIA         80.00                 0.250           0.016  0.000
6993592 PARK CITY            70.71                 0.250           0.016  0.484
6993601 FORT LAUDERDALE      70.46                 0.250           0.016  0.734
6993602 LEXINGTON PARK       70.00                 0.250           0.016  0.000
6993608 ST MICHAEL           80.00                 0.250           0.016  0.359
6993619 NORTH SALEM          50.23                 0.250           0.016  0.234
6993620 SWANTON              76.88                 0.250           0.016  0.234
6993629 ORONO                80.00                 0.250           0.016  0.000
6993656 CORNELIUS            53.72                 0.250           0.016  0.359
6993668 SCOTTSDALE           65.93                 0.250           0.016  0.359
6993676 BASALT               55.33                 0.250           0.016  0.484
6993703 SAN DIEGO            80.00                 0.250           0.016  0.109
6993731 ALBUQUERQUE          64.86                 0.250           0.016  0.609
6993734 PENN VALLEY          79.17                 0.250           0.016  0.000
6993754 MURRAY               74.38                 0.250           0.016  0.000
6993759 ALBUQUERQUE          55.56                 0.250           0.016  0.109
6993760 KENNETT SQUARE       79.22                 0.250           0.016  0.000
6993773 SAN FRANCISCO        28.57                 0.250           0.016  0.484
6993776 MONTE SERENO         33.71                 0.250           0.016  0.000
6993793 DOVER                78.13                 0.250           0.016  0.484
6993795 RIDGEWOOD            65.00                 0.250           0.016  0.359
6993819 ALGONQUIN            52.67                 0.250           0.016  0.859
6993841 SUMMERFIELD          78.75                 0.250           0.016  0.000
6993878 MINNETONKA           77.92                 0.250           0.016  0.234
6993879 EDINA                65.80                 0.250           0.016  0.234
6993897 SAN MARINO           68.42                 0.250           0.016  0.359
6993906 WESTON               80.00                 0.250           0.016  0.109
6993927 MALVERN              77.65                 0.250           0.016  0.234
6993945 HO HO KUS            67.42                 0.250           0.016  0.359
6993964 MINNETONKA           58.82                 0.250           0.016  0.000
6993974 MUKILTEO             38.46                 0.250           0.016  0.484
6993981 CATALDO              89.74          33     0.250           0.016  0.359
6993983 MANALAPAN            54.12                 0.250           0.016  0.234
6993986 RANDOLPH TWP         79.99                 0.250           0.016  0.234
6994003 NAPERVILLE           58.31                 0.250           0.016  0.000
6994007 PARADISE VALLEY      69.77                 0.250           0.016  0.000
6994016 LAFAYETTE            80.00                 0.250           0.016  0.234
6994031 TURLOCK              60.00                 0.250           0.016  0.000
6994040 SAN JOSE             41.36                 0.250           0.016  0.234
6994059 LOS ANGELES          72.73                 0.250           0.016  0.000
6994063 WESTCLIFFE           43.48                 0.250           0.016  0.359
6994067 FARMINGTON           80.00                 0.250           0.016  0.000
6994073 TIGARD               65.00                 0.250           0.016  0.234
6994097 PHOENIX              54.69                 0.250           0.016  0.000
6994099 SEATTLE              60.36                 0.250           0.016  0.000
6994106 OMAHA                61.36                 0.250           0.016  0.609
6994113 AUSTIN               64.29                 0.250           0.016  0.000
6994118 SCOTTSDALE           80.00                 0.250           0.016  0.859
6994143 WILMINGTON           76.70                 0.250           0.016  0.000
6994164 LAKEWOOD             70.00                 0.250           0.016  0.109
6994179 SCOTTSDALE           74.85                 0.250           0.016  0.359
6994181 METAIRIE             89.77          33     0.250           0.016  0.000
6994196 LUTHERVILLE          80.00                 0.250           0.016  0.984
6994216 PALM DESERT          76.47                 0.250           0.016  0.000
6994227 DALLAS               79.46                 0.250           0.016  0.109
6994244 ROCHESTER            78.66                 0.250           0.016  0.000
6994257 DOWNERS GROVE        47.06                 0.250           0.016  0.234
6994267 DENVER               57.14                 0.250           0.016  0.000
6994273 RANCHO SANTA FE      28.33                 0.250           0.016  0.109
6994276 FOSTER CITY          80.00                 0.250           0.016  0.000
6994278 SCOTTSDALE           80.00                 0.250           0.016  0.359
6994292 MOBILE               75.00                 0.250           0.016  0.234
6994295 LAFAYETTE            46.43                 0.250           0.016  0.000
6994296 COLORADO SPRINGS     80.00                 0.250           0.016  0.000
6994306 MIDDLETOWN           85.00          33     0.250           0.016  0.484
6994308 AUSTIN               57.92                 0.250           0.016  0.359
6994322 LAS VEGAS            80.00                 0.250           0.016  0.000
6994325 EUGENE               79.99                 0.250           0.016  0.359
6994338 NAPA                 80.00                 0.250           0.016  0.000
6994343 SUSSEX               75.00                 0.250           0.016  0.109
6994345 RENO                 80.00                 0.250           0.016  0.000
6994347 ROCKVILLE            61.61                 0.250           0.016  0.234
6994353 MINNEAPOLIS          80.00                 0.250           0.016  0.000
6994369 ROCHESTER            79.26                 0.250           0.016  0.484
6994391 ALEXANDRIA           90.00          24     0.250           0.016  0.000
6994402 GREAT FALLS          75.67                 0.250           0.016  0.484
6994407 FLORENCE             80.00                 0.250           0.016  0.000
6994408 CORNELIUS            80.00                 0.250           0.016  0.609
6994436 CARLSBAD             60.00                 0.250           0.016  0.359
6994483 GERMANTOWN           52.40                 0.250           0.016  0.000
6994498 SPRINGVILLE          74.84                 0.250           0.016  0.609
6994502 LAS VEGAS            61.60                 0.250           0.016  0.109
6994524 LIBERTYVILLE         79.94                 0.250           0.016  0.000
6994539 ESTES PARK           47.68                 0.250           0.016  0.000
6994548 SAN DIEGO            80.00                 0.250           0.016  0.000
6994553 CARLSBAD             89.75          13     0.250           0.016  0.234
6994555 PINEHURST            67.57                 0.250           0.016  0.000
6994572 MONTEREY             90.00          33     0.250           0.016  0.000
6994573 ARCADIA              75.90                 0.250           0.016  0.000
6994574 SALT LAKE CITY       45.45                 0.250           0.016  0.000
6994579 MANHATTAN BEACH      43.33                 0.250           0.016  0.000
6994590 MERTON               80.00                 0.250           0.016  0.484
6994593 WHITEHOUSE STATIO    84.12          33     0.250           0.016  0.109
6994612 BUTTE                70.65                 0.250           0.016  0.359
6994619 LONG LAKE            88.82          33     0.250           0.016  0.734
6994633 POTOMAC              73.13                 0.250           0.016  0.000
6994660 GREENTOWN            74.99                 0.250           0.016  0.859
6994668 STERLING             89.80          33     0.250           0.016  0.000
6994670 SILVER SPRING        88.87          33     0.250           0.016  0.109


<S>              <C>  

COUNT:                   190
WAC:             7.770488502
WAM:              176.621914
WALTV:           68.39907164

</TABLE>


<PAGE>


                                   EXHIBIT F-2


[Schedule of Mortgage Loans Serviced by Norwest Mortgage in Frederick, Maryland]

NASCOR
NMI / 1997-1  Exhibit F-2
15 YEAR FIXED RATE NON-RELOCATION AND
RELOCATION LOANS
<TABLE>
<CAPTION>


(i)      (ii)                         (iii)    (iv)     (v)      (vi)    (vii)   (viii)      (ix)
- -----    ------------------------------------- -------- -------- ---------------------------------------
                                                        NET                                  CUT-OFF
MORTGAGE                                       MORTGAGE MORTGAGE CURRENT ORIGINAL SCHEDULED  DATE
LOAN                             ZIP  PROPERTY INTEREST INTEREST MONTHLY TERM TO  MATURITY   PRINCIPAL
NUMBER   CITY              STATE CODE TYPE     RATE     RATE     PAYMENT MATURITY DATE       BALANCE
- -------- ------------------------------------------------------- ---------------------------------------
<S>      <C>               <C>   <C>    <C>     <C>      <C>     <C>        <C>  <C>      <C>

4499338  CINCINNATI        OH    45249  SFD     7.250    6.984   $3,879.67  180   1-Dec-11 $423,688.04
4507374  MOORESTOWN        NJ    08057  SFD     7.375    7.109   $2,529.79  180   1-Dec-11 $274,108.35
4509301  NORTH HILLS       NY    11576  SFD     7.000    6.734   $5,033.44  180   1-Dec-11 $558,233.23
4519604  STATEN ISLAND     NY    10312  SFD     8.375    7.250   $5,375.85  180   1-Nov-11 $546,914.65
4523239  SOUTHBOROUGH      MA    01772  SFD     7.875    7.250   $2,418.55  180   1-Nov-11 $253,504.89
4529099  LAKE JACKSON      TX    77566  SFD     7.875    7.250   $2,729.17  180   1-Nov-11 $286,062.86
4532532  BONITA            CA    91902  SFD     8.625    7.250   $3,720.31  180   1-Jul-11 $366,723.10
4532687  SYOSSET           NY    11791  LCO     8.875    7.250   $1,867.70  180   1-Sep-11 $183,494.80
4532863  PORTLAND          OR    97201  HCO     7.750    7.250   $3,765.11  180   1-Dec-11 $398,818.22
4533715  HIGHLAND          MD    20777  SFD     7.625    7.250   $2,101.80  180   1-Nov-11 $223,651.51
4534066  AUSTIN            TX    78733  SFD     8.750    7.250   $2,791.47  180   1-Nov-11 $277,784.68
4534258  BEDFORD HILLS     NY    10507  SFD     7.875    7.250   $1,545.98  180   1-Dec-11 $162,523.71
4534572  KITTY HAWK        NC    27949  SFD     8.250    7.250   $2,728.52  180   1-Oct-11 $270,629.36
4535298  SUNNYVALE         TX    75182  SFD     8.500    7.250   $1,311.67  180   1-Sep-11 $131,711.60
4535616  MIAMI             FL    33133  SFD     8.000    7.250   $2,217.11  180   1-Oct-11 $229,975.24
4535803  QUEENSBURY        NY    12804  SFD     8.000    7.250     $793.19  180   1-Oct-11  $81,652.44
4535914  LOS ANGELES       CA    90064  SFD     7.375    7.109   $4,470.83  180   1-Nov-11 $483,022.96
4536061  MASHPEE           MA    02649  SFD     7.750    7.250   $1,948.45  180   1-Nov-11 $205,772.90
4536364  HUMBLE            TX    77746  SFD     8.125    7.250   $2,142.42  180   1-Sep-11 $219,930.42
4536862  LOS ANGELES       CA    91326  SFD     7.500    7.234   $3,481.86  180   1-Nov-11 $373,324.19
4537515  RICHMOND HILL     NY    11419  SFD     7.750    7.250   $1,120.12  180   1-Oct-11 $117,938.44
4537892  DUNWOODY          GA    30350  SFD     7.875    7.250   $3,594.63  180   1-Oct-11 $375,655.82
4538193  LITTLE NECK       NY    11362  MF2     8.250    7.250   $2,924.98  180   1-Nov-11 $299,789.80
4538256  AMITYVILLE HARBOR NY    11701  SFD     8.625    7.250   $1,078.89  180   1-Nov-11 $108,153.36
4538469  SCOTTSDALE        AZ    85251  SFD     7.625    7.250     $896.77  180   1-Oct-11  $95,134.21
4538697  SNOWMASS VILLAGE  CO    81615  SFD     8.000    7.250   $7,559.21  180   1-Oct-11 $784,096.55
4538755  YORKTOWN          VA    23692  SFD     8.125    7.250   $4,987.74  180   1-Nov-11 $515,029.08
4538977  PATCHOGUE         NY    11772  SFD     8.625    7.250     $761.92  180   1-Nov-11  $76,378.65
4539315  BRIGHTON          NY    14610  SFD     6.750    6.484   $2,654.73  180   1-Jan-12 $300,000.00
4539594  JACKSON HEIGHTS   NY    11370  SFD     8.250    7.250   $1,474.61  180   1-Nov-11 $151,137.83
4539964  READING TOWNSHIP  NJ    08889  SFD     8.000    7.250   $2,569.75  180   1-Nov-11 $267,340.66
4540190  KETTERING         OH    45419  SFD     8.000    7.250   $5,733.92  180   1-Oct-11 $594,757.61
4540441  EMMAUS            PA    18049  SFD     7.750    7.250   $2,353.19  180   1-Dec-11 $249,261.39
4540951  NEW CITY          NY    10956  SFD     8.375    7.250   $1,434.87  180   1-Nov-11 $145,976.48
4541002  DUBLIN            OH    43017  SFD     8.375    7.250   $4,652.55  180   1-Oct-11 $471,980.68
4541004  ZIONSVILLE        IN    46077  SFD     8.375    7.250   $2,453.34  180   1-Oct-11 $248,880.56
4541276  CORPUS CHRISTI    TX    78415  SFD     8.500    7.250   $2,198.44  180   1-Oct-11 $221,385.59
4541371  SUGAR LAND        TX    77479  SFD     7.875    7.250   $2,414.15  174   1-Mar-11 $240,809.51
4541380  RIDGEFIELD        CT    06877  SFD     8.500    7.250   $2,954.22  180   1-Nov-11 $298,335.69
4541442  THE WOODLANDS     TX    77380  SFD     7.250    6.984   $2,446.48  180   1-Nov-11 $266,340.38
4541450  CHICAGO           IL    60614  SFD     7.375    7.109   $2,759.77  180   1-Oct-11 $297,235.02
4541478  RANCHO PALOS      CA    90275  SFD     7.375    7.109   $2,299.81  180   1-Nov-11 $248,468.61
         VERDES
4541480  NORTH SALEM       NY    10560  SFD     8.250    7.250   $2,910.43  180   1-Nov-11 $298,298.31
4541515  CARMEL            IN    46032  SFD     8.500    7.250   $2,599.72  180   1-Oct-11 $261,795.30
4541615  SIMPSONVILLE      SC    29681  SFD     7.875    7.250   $2,292.41  180   1-Nov-11 $240,282.86
4541719  CARMEL            IN    46033  SFD     7.750    7.250   $2,117.88  180   1-Nov-11 $223,666.19
4541743  NOVI              MI    48374  SFD     7.250    6.984   $2,738.59  180   1-Dec-11 $299,073.91
4541869  MARCO ISLAND      FL    34145  HCO     8.750    7.250   $2,598.57  180   1-Oct-11 $257,876.38
4541910  MCLEAN            VA    22102  SFD     7.375    7.109   $3,238.14  180   1-Nov-11 $349,843.78
4541921  UNION             NJ    08827  SFD     7.750    7.250   $2,623.34  180   1-Oct-11 $276,213.81
4541975  PAWLEYS ISLAND    SC    29585  SFD     7.625    7.250   $2,241.92  180   1-Oct-11 $237,098.14
4542062  COVINGTON         LA    70433  SFD     8.125    7.250   $2,264.70  180   1-Dec-11 $234,527.80
4542093  FAIRFAX STATION   VA    22039  SFD     7.625    7.250   $2,339.06  180   1-Oct-11 $248,141.78
4542135  ALEXANDRIA        VA    22314  THS     8.125    7.250   $2,744.21  180   1-Oct-11 $281,331.73
4542149  CENTER MORICHES   NY    11934  SFD     7.250    6.984   $2,282.65  180   1-Dec-11 $249,227.77
4542408  WESTFIELD         NJ    07090  SFD     7.875    7.250   $3,177.31  180   1-Nov-11 $333,035.83
4542417  VANBUREN          MI    48111  SFD     8.000    7.250   $2,365.24  180   1-Oct-11 $245,339.94
4542558  AUSTIN            AR    72007  SFD     8.000    7.250   $3,717.49  180   1-Nov-11 $386,744.19
4542635  FARMINGTON        CT    06032  SFD     7.625    7.250   $3,269.46  180   1-Oct-11 $346,843.53
4542879  MILPITAS          CA    95035  SFD     7.625    7.250   $3,176.05  180   1-Oct-11 $323,787.15
4543096  LAGRANGEVILLE     NY    12540  LCO     8.750    7.250   $1,003.45  180   1-Nov-11  $99,855.28
4543131  EUGENE            OR    97408  SFD     8.000    7.250   $2,675.83  180   1-Nov-11 $278,376.28
4543254  PLYMOUTH          MN    55442  SFD     8.000    7.250   $2,370.02  180   1-Dec-11 $247,283.32
4543295  BLUE BELL         PA    19422  SFD     7.625    7.250   $2,529.16  180   1-Dec-11 $269,941.23
4543303  MEDFORD           NY    11763  SFD     7.750    7.250     $847.15  180   1-Dec-11  $89,734.10
4543394  YORKTOWN HEIGHTS  NY    10598  SFD     8.750    7.250     $999.45  180   1-Nov-11  $99,457.47
4543412  CHAMBERSBURG      PA    17201  SFD     7.750    7.250   $3,765.11  180   1-Nov-11 $397,628.81
4543431  NASHVILLE         TN    37215  SFD     7.625    7.250   $2,981.75  180   1-Nov-11 $317,286.94
4543703  LINCOLN           RI    02865  SFD     7.500    7.234   $2,039.43  180   1-Jan-12 $220,000.00
4543732  PANAMA CITY BEACH FL    32413  SFD     9.375    7.250     $265.40  180   1-Sep-11  $25,335.32
4543765  BETHESDA          MD    20816  SFD     8.000    7.250   $2,226.67  180   1-Sep-11 $223,038.74
4543802  WEST CHESTER      PA    19380  SFD     7.750    7.250   $2,908.55  180   1-Nov-11 $306,591.47
4543808  AZLE              TX    76020  SFD     8.125    7.250   $2,888.65  180   1-Nov-11 $298,279.39
4543816  NEWPORT BEACH     CA    92660  LCO     7.750    7.250   $2,353.19  180   1-Nov-11 $248,518.01
4543824  WILTON            CT    06897  SFD     7.750    7.250   $2,550.86  180   1-Nov-11 $269,393.53
4543834  DANVILLE          CA    94526  SFD     7.625    7.250   $2,568.86  180   1-Nov-11 $273,351.86
4543880  ROCKPORT          MA    01966  SFD     7.750    7.250   $3,765.11  180   1-Nov-11 $397,628.81
4543907  ARLINGTON         TX    76001  SFD     8.250    7.250   $1,109.85  180   1-Oct-11 $113,423.27
4544048  PHILADELPHIA      PA    19115  SFD     8.375    7.250     $586.46  180   1-Nov-11  $59,663.41
4544060  SOUTH BARRINGTON  IL    60010  SFD     8.000    7.250   $6,211.74  180   1-Nov-11 $646,230.66
4544116  SAN JOSE          CA    95136  SFD     7.750    7.250   $2,600.75  180   1-Nov-11 $273,959.00
4544123  DANVILLE          CA    94506  SFD     8.125    7.250   $4,313.72  180   1-Nov-11 $445,430.55
4544226  MIAMI BEACH       FL    33139  LCO     8.750    7.250     $854.53  180   1-Nov-11  $85,036.13
4544259  IDAHO FALLS       ID    83404  SFD     7.750    7.250   $2,626.16  180   1-Dec-11 $278,175.71
4544316  MISSION           TX    78504  SFD     8.250    7.250   $4,608.17  180   1-Dec-11 $473,657.46
4544400  UNIVERSITY PARK   TX    75205  SFD     8.250    7.250   $2,211.92  180   1-Nov-11 $226,706.73
4544411  WESTPORT          CT    06880  SFD     7.875    7.250   $2,371.12  180   1-Sep-11 $247,049.13
4544434  FRESNO            CA    93720  SFD     8.000    7.250   $2,141.62  180   1-Nov-11 $222,792.01
4544558  SAN JOSE          CA    95124  SFD     8.500    7.250   $2,914.83  180   1-Nov-11 $294,357.88
4544664  SYOSSET           NY    11791  SFD     8.000    7.250   $2,236.23  180   1-Nov-11 $232,643.03
4544741  LAFAYETTE         CO    80026  SFD     8.375    7.250   $2,783.71  180   1-Oct-11 $282,395.17
4544834  BENTONVILLE       AR    72712  SFD     7.875    7.250   $2,371.12  180   1-Oct-11 $247,794.11
4545110  TIBURON           CA    94920  LCO     8.000    7.250   $2,131.11  180   1-Nov-11 $221,706.82
4545278  BARRINGTON        IL    60010  SFD     7.500    7.234   $2,688.34  180   1-Nov-11 $288,242.85
4545298  CRANFORD          NJ    07016  SFD     7.875    7.250   $2,532.36  180   1-Dec-11 $266,219.83
4545433  MORAGA            CA    94556  SFD     7.750    7.250   $2,447.32  180   1-Nov-11 $258,405.72
4545440  BOCA RATON        FL    33496  SFD     7.125    6.859   $2,717.50  180   1-Dec-11 $299,063.75
4545517  BEAUMONT          TX    77706  SFD     7.875    7.250   $4,514.62  180   1-Nov-11 $472,720.57
4545602  CHINO HILLS       CA    91709  SFD     7.875    7.250   $2,276.28  180   1-Nov-11 $238,592.84
4545633  SAN JOSE          CA    95132  SFD     7.250    6.984   $3,761.00  180   1-Jan-12 $412,000.00
4545655  SEATTLE           WA    98105  SFD     8.000    7.250   $2,178.89  180   1-Oct-11 $225,988.87
4545661  MELVILLE          NY    11747  SFD     8.000    7.250   $1,337.92  180   1-Nov-11 $139,188.13
4545664  MESA              AZ    85201  LCO     8.500    7.250     $624.82  180   1-Nov-11  $63,098.00
4545719  MANSFIELD         TX    76063  SFD     7.875    7.250   $2,465.97  180   1-Dec-11 $259,240.28
4545867  GRESHAM           OR    97080  SFD     7.875    7.250   $2,754.30  180   1-Nov-11 $288,596.68
4545884  BOISE             ID    83702  SFD     7.875    7.250   $2,964.85  180   1-Oct-11 $309,841.74
4545885  BUFORD            GA    30518  SFD     7.125    6.859   $3,217.52  180   1-Nov-11 $352,976.38
4545948  DALLAS            TX    75230  SFD     8.000    7.250   $2,628.05  180   1-Nov-11 $273,405.28
4546022  HOUSTON           TX    77024  SFD     7.000    6.734   $2,872.66  180   1-Dec-11 $318,591.67
4546139  OLD HICKORY       TN    37138  SFD     8.000    7.250   $2,694.94  180   1-Nov-11 $280,364.69
4546159  WESTON            MA    02193  SFD     8.250    7.250   $2,328.34  180   1-Dec-11 $239,321.66
4546166  SAN MARTIN        CA    95046  SFD     8.625    7.250   $5,555.65  180   1-Oct-11 $555,374.97
4546189  NEW CITY          NY    10956  SFD     8.375    7.250     $635.33  180   1-Nov-11  $64,635.36
4546201  LITTLE ROCK       AR    72212  SFD     7.875    7.250   $2,527.62  180   1-Nov-11 $264,937.47
4546260  LAGUNA NIGUEL     CA    92677  SFD     8.125    7.250   $2,692.22  180   1-Nov-11 $277,694.36
4546294  BLOOMFIELD        MI    48301  SFD     8.000    7.250   $4,085.41  180   1-Nov-11 $425,020.94
4546311  HOUSTON           TX    77079  SFD     8.125    7.250   $2,696.07  180   1-Nov-11 $278,394.10
4546369  FLUSHING          NY    11358  SFD     8.375    7.250     $733.07  180   1-Dec-11  $74,790.37
4546399  GREENSBORO        NC    27403  SFD     7.750    7.250   $2,214.83  180   1-Dec-11 $234,604.82
4546407  NASHVILLE         TN    37215  SFD     7.375    7.109   $2,207.82  180   1-Nov-11 $238,529.86
4546497  MAHWAH            NJ    07430  SFD     7.625    7.250   $3,176.04  180   1-Dec-11 $338,984.38
4546665  REMSENBURG        NY    11960  SFD     7.750    7.250   $4,471.06  180   1-Dec-11 $473,596.65
4546727  WESTFIELD         NJ    07090  SFD     8.250    7.250   $3,880.57  180   1-Nov-11 $397,731.09
4546743  SACRAMENTO        CA    95864  SFD     8.250    7.250   $2,960.87  180   1-Oct-11 $302,594.31
4546822  WASHINGTON        MI    48094  SFD     8.375    7.250   $2,443.57  180   1-Dec-11 $249,301.22
4546852  FREMONT           CA    94536  SFD     8.000    7.250   $4,012.78  180   1-Nov-11 $417,465.01
4546909  CHARLESTOWN       MA    02129  THS     8.000    7.250   $3,975.52  180   1-Nov-11 $413,587.61
4546919  RANCHO PALOS      CA    90275  SFD     7.750    7.250   $3,129.75  180   1-Nov-11 $330,528.70
         VERDES
4546971  PITTSFORD         NY    14534  SFD     6.875    6.609   $2,497.20  180   1-Jan-12 $280,000.00
4547016  VENTURA           CA    93003  SFD     7.375    7.109   $2,452.06  180   1-Jan-12 $266,550.00
4547036  PORT JERVIS       NY    12771  SFD     8.250    7.250     $485.08  180   1-Dec-11  $49,858.67
4547040  ALAMEDA           CA    94502  SFD     8.250    7.250   $2,266.25  180   1-Oct-11 $231,605.60
4547047  CULVER CITY       CA    90232  SFD     8.400    7.250   $2,238.72  180   1-Oct-11 $226,761.76
4547063  LARGO             FL    33770  SFD     8.125    7.250   $2,765.40  180   1-Nov-11 $285,552.81
4547125  VIRGINIA BEACH    VA    23454  SFD     7.500    7.234   $2,588.22  180   1-Nov-11 $277,508.29
4547181  PAINTED POST      NY    14870  SFD     7.750    7.250   $2,089.64  180   1-Dec-11 $221,344.11
4547302  GOLDEN BEACH      FL    33160  SFD     7.500    7.234   $2,178.48  180   1-Nov-11 $233,576.10
4547331  MEMPHIS           TN    38133  SFD     7.750    7.250   $3,012.08  180   1-Nov-11 $318,103.07
4547340  TULSA             OK    74114  SFD     7.875    7.250   $2,603.49  180   1-Oct-11 $272,077.92
4547364  KAYSVILLE         UT    84037  SFD     7.750    7.250   $2,353.19  180   1-Nov-11 $248,471.21
4547386  MISSION VIEJO     CA    92692  SFD     7.750    7.250   $3,030.91  180   1-Dec-11 $321,048.67
4547542  PHOENIX           AZ    85018  SFD     7.875    7.250   $4,097.31  180   1-Nov-11 $429,467.10
4547597  ELLICOTT CITY     MD    21043  SFD     7.875    7.250   $1,422.67  180   1-Oct-11 $148,676.44
4547646  GREAT FALLS       VA    22066  SFD     7.875    7.250   $6,164.92  180   1-Dec-11 $648,100.71
4547649  LONETREE          CO    80124  SFD     8.000    7.250   $2,405.38  180   1-Oct-11 $249,503.28
4547655  PORT ARANSAS      TX    78373  SFD     8.000    7.250   $2,107.22  180   1-Dec-11 $217,755.56
4547804  MILFORD           OH    45150  SFD     8.000    7.250   $3,500.08  180   1-Oct-11 $362,876.20
4547841  LAKE OSWEGO       OR    97034  SFD     7.750    7.250   $2,776.76  180   1-Sep-11 $291,479.86
4547854  DANVILLE          CA    94526  SFD     7.375    7.109   $2,964.46  180   1-Dec-11 $321,266.03
4547911  SAN ANTONIO       TX    78209  SFD     7.750    7.250   $9,412.76  180   1-Jan-12 $1,000,000.00
4547913  ELLICOTT CITY     MD    21013  SFD     7.500    7.234   $4,338.42  180   1-Nov-11 $465,164.33
4547960  SOUTHLAKE         TX    76092  SFD     7.750    7.250   $2,573.92  180   1-Nov-11 $271,699.47
4548137  MARGATE CITY      NJ    08402  HCO     8.375    7.250     $855.25  180   1-Nov-11  $87,009.15
4548189  SANTA BARBARA     CA    93105  SFD     7.875    7.250   $2,418.55  180   1-Nov-11 $253,504.89
4548335  NIWOT             CO    80544  SFD     7.750    7.250   $2,353.19  180   1-Nov-11 $248,518.01
4548363  ROWLAND HEIGHTS   CA    91748  SFD     8.625    7.250   $2,232.19  180   1-Nov-11 $223,765.58
4548623  MEDINA            OH    44256  SFD     7.500    7.234   $3,151.85  180   1-Dec-11 $338,973.15
4548629  FAIRFAX           VA    22039  SFD     7.500    7.234   $2,808.85  180   1-Dec-11 $302,084.90
4548732  OLD HICKORY       TN    37138  SFD     7.875    7.250   $2,240.72  180   1-Dec-11 $235,559.67
4548751  WOODINVILLE       WA    98072  SFD     7.750    7.250   $3,765.10  180   1-Nov-11 $397,628.83
4548895  BURKE             VA    22015  SFD     7.875    7.250   $2,109.36  180   1-Dec-11 $221,750.14
4548898  PHILADELPHIA      PA    19106  SFD     7.000    6.734   $3,145.90  180   1-Dec-11 $348,895.77
4548921  WILTON            CT    06897  SFD     7.125    6.859   $2,491.04  180   1-Jan-12 $275,000.00
4548972  RICHMOND          TX    77469  SFD     6.875    6.609   $1,962.08  180   1-Dec-11 $219,298.34
4549047  COPPELL           TX    75019  SFD     7.625    7.250   $2,193.34  180   1-Nov-11 $232,991.51
4549129  SAN ANTONIO       TX    78255  SFD     7.750    7.250   $2,823.83  180   1-Dec-11 $299,113.67
4549159  SAN ANTONIO       TX    78230  SFD     7.500    7.234   $3,522.65  180   1-Dec-11 $378,852.35
4549186  RIDGEFIELD        CT    06877  SFD     7.375    7.109   $2,462.64  180   1-Nov-11 $266,060.18
4549315  MUTTONTOWN        NY    11791  SFD     7.250    6.984   $3,651.46  180   1-Jan-12 $400,000.00
4549450  SAN ANSELMO       CA    94960  SFD     7.750    7.250   $4,593.43  180   1-Dec-11 $486,558.24
4549547  NORTH PALM BEACH  FL    33408  SFD     7.750    7.250   $2,823.83  180   1-Dec-11 $299,113.67
4549652  LUDLOW            VT    05149  SFD     8.375    7.250   $2,375.15  180   1-Dec-11 $242,320.79
4549704  WINDHAM           NH    03087  SFD     7.250    6.984   $2,099.59  180   1-Dec-11 $229,289.99
4549762  KINGSTON          MA    02364  SFD     7.750    7.250   $2,259.06  180   1-Dec-11 $239,290.94
4549902  SPRINGFIELD       NJ    07081  SFD     8.250    7.250   $2,522.36  180   1-Nov-11 $256,928.51
4550126  NEW PORT RICHEY   FL    34652  SFD     8.125    7.250   $2,599.79  180   1-Nov-11 $268,085.75
4550250  CHEVY CHASE       MD    20815  SFD     8.000    7.250   $4,778.27  180   1-Dec-11 $498,555.06
4550257  FRANKLIN PARK     NJ    08823  LCO     8.000    7.250     $544.73  180   1-Dec-11  $56,835.27
4550272  SOUTHLAKE         TX    76092  SFD     7.000    6.734   $2,075.85  180   1-Dec-11 $230,221.36
4550488  HUNTINGTON BEACH  CA    92648  PUD     7.875    7.250   $4,268.03  180   1-Nov-11 $447,361.57
4550500  ALPHARETTA        GA    30202  SFD     7.000    6.734   $3,145.90  180   1-Dec-11 $348,895.77
4550528  OLYMPIA           WA    98502  SFD     7.625    7.250   $2,802.39  180   1-Dec-11 $299,103.86
4550529  BRENTWOOD         TN    37027  SFD     7.000    6.734   $2,247.07  180   1-Dec-11 $249,211.26
4550567  OGDEN             UT    84403  LCO     7.500    7.234   $1,070.70  180   1-Dec-11 $115,151.18
4550604  SAVANNAH          GA    31411  SFD     8.000    7.250   $2,178.89  180   1-Dec-11 $227,337.25
4550731  CASTRO VALLEY     CA    94552  SFD     7.625    7.250   $2,558.59  180   1-Dec-11 $273,081.82
4550852  RESTON            VA    20194  SFD     7.500    7.234   $2,132.13  180   1-Jan-12 $230,000.00
4550962  RANCHO SANTA FE   CA    92067  SFD     7.625    7.250   $5,137.72  180   1-Nov-11 $546,703.70
4551053  REDMOND           WA    98052  SFD     7.250    6.984   $2,121.50  180   1-Dec-11 $231,682.58
4551069  MIDLOTHIAN        VA    23113  SFD     6.875    6.609   $2,916.37  180   1-Dec-11 $325,957.07
4551168  HORSEHEADS        NY    14845  SFD     7.000    6.734   $1,941.47  180   1-Jan-12 $216,000.00
4551219  GERMANTOWN        TN    38139  SFD     7.000    6.734   $2,336.96  180   1-Dec-11 $259,179.71
4551369  GOLDEN            CO    80401  SFD     7.625    7.250   $2,354.01  180   1-Dec-11 $251,247.24
4551387  DERWOOD           MD    20855  SFD     7.375    7.109   $2,207.82  180   1-Jan-12 $240,000.00
4551436  BROOKLYN          NY    11209  SFD     7.500    7.234   $2,781.04  180   1-Dec-11 $299,093.96
4551466  ROCHESTER HILLS   MI    48306  SFD     6.875    6.609   $2,675.57  180   1-Dec-11 $299,043.18
4551472  MILL CREEK        WA    98012  SFD     7.500    7.234   $2,150.67  180   1-Dec-11 $231,299.33
4551485  TUCSON            AZ    85718  SFD     7.500    7.234   $2,781.04  180   1-Dec-11 $299,093.96
4551489  INDIANAPOLIS      IN    46205  SFD     8.250    7.250   $2,762.96  180   1-Nov-11 $283,184.55
4551494  YORBA LINDA       CA    92887  SFD     7.750    7.250   $2,635.57  180   1-Nov-11 $278,340.18
4551497  SCOTTSDALE        AZ    85254  SFD     8.000    7.250   $2,507.64  180   1-Nov-11 $260,675.66
4551504  CHEVY CHASE       MD    20815  SFD     7.000    6.734   $4,494.15  180   1-Dec-11 $498,422.52
4551505  MOUNTAIN VIEW     CA    94043  SFD     8.250    7.250   $2,910.43  180   1-Nov-11 $298,298.31
4551606  CYPRESS           CA    90630  SFD     7.875    7.250   $1,341.11  180   1-Dec-11 $140,986.83
4551823  YORBA LINDA       CA    92886  SFD     7.000    6.734   $2,229.10  180   1-Nov-11 $246,430.57
4552164  CARSON CITY       NV    89703  SFD     8.250    7.250   $2,794.00  180   1-Dec-11 $287,186.00
4552192  CLEARWATER        FL    34623  SFD     8.250    7.250     $582.08  180   1-Dec-11  $59,830.42
4552232  MURFREESBORO      TN    37129  SFD     7.250    6.984   $2,245.65  180   1-Dec-11 $245,240.60
4552309  ATLANTA           GA    30324  SFD     7.250    6.984   $3,761.00  180   1-Nov-11 $409,448.65
4552422  ANNAPOLIS         MD    21403  SFD     7.500    7.234   $2,604.91  180   1-Dec-11 $280,151.34
4552647  CANYON COUNTRY    CA    91351  SFD     7.250    6.984   $3,651.46  180   1-Dec-11 $398,765.21
4552760  WINHALL           VT    05201  LCO     8.125    7.250   $1,805.41  180   1-Dec-11 $186,964.12
4552785  REDWOOD CITY      CA    94062  SFD     7.875    7.250   $4,998.33  180   1-Dec-11 $525,460.11
4552788  HAUPPAUGE         NY    11788  SFD     7.750    7.250   $1,694.30  180   1-Dec-11 $179,468.20
4552826  SAN ANTONIO       TX    78231  SFD     7.875    7.250   $2,124.53  180   1-Dec-11 $223,345.47
4552828  SOUTHLAKE         TX    76092  SFD     7.500    7.234   $3,544.90  180   1-Dec-11 $381,245.10
4552837  SPARTANBURG       SC    29301  SFD     7.375    7.109   $2,382.61  180   1-Jan-12 $259,000.00
4552879  CASTLE ROCK       CO    80104  SFD     7.500    7.234   $2,438.05  180   1-Dec-11 $262,205.70
4552964  HOUSTON           TX    77005  SFD     7.500    7.234   $2,808.85  180   1-Dec-11 $302,084.90
4553048  COLUMBIA          MD    21044  SFD     8.250    7.250   $2,837.67  180   1-Jan-12 $292,500.00
4553224  ALAMO             CA    94507  SFD     7.875    7.250   $3,674.77  180   1-Jan-12 $387,450.00
4553271  VALLEY CENTER     CA    92082  SFD     7.875    7.250   $3,966.42  180   1-Dec-11 $414,007.20
4553285  PASADENA          MD    21122  SFD     8.000    7.250   $2,819.18  180   1-Dec-11 $294,147.49
4553395  SAN CLEMENTE      CA    92672  SFD     7.375    7.109   $2,345.81  180   1-Dec-11 $254,221.38
4553401  CAMPBELL          CA    95008  SFD     7.500    7.234   $2,607.23  180   1-Jan-12 $281,250.00
4553417  TUCSON            AZ    85745  SFD     7.875    7.250   $4,362.87  180   1-Dec-11 $458,655.88
4553559  WINSTON-SALEM     NC    27106  SFD     7.375    7.109   $5,501.15  180   1-Dec-11 $596,174.06
4553665  BIRMINGHAM        AL    35243  SFD     7.000    6.734   $2,696.49  180   1-Jan-12 $300,000.00
4553674  RICHMOND          VA    23221  SFD     7.125    6.859   $2,862.43  180   1-Nov-11 $314,021.78
4553678  NORTHBROOK        IL    60062  THS     7.625    7.250   $2,592.22  180   1-Jan-12 $277,500.00
4553802  MARIETTA          GA    30066  SFD     7.000    6.734   $2,063.71  180   1-Jan-12 $229,600.00
4553836  DALLAS            TX    75252  SFD     7.875    7.250   $2,981.93  180   1-Nov-11 $312,556.61
4553849  FRISCO            TX    75034  SFD     7.750    7.250   $3,650.27  180   1-Jan-12 $387,800.00
4553914  KENT              WA    98042  SFD     8.000    7.250   $2,342.31  180   1-Dec-11 $244,391.69
4553918  SCOTTSDALE        AZ    85254  SFD     7.125    6.859   $2,934.90  180   1-Jan-12 $324,000.00
4553949  CHERRY HILL       NJ    08003  SFD     7.750    7.250     $658.90  180   1-Dec-11  $69,602.08
4553988  GLENWOOD SPRINGS  CO    81601  SFD     7.500    7.234   $2,382.43  180   1-Dec-11 $256,223.82
4554070  ROSEBURG          OR    97470  SFD     7.500    7.234   $2,150.67  180   1-Dec-11 $231,299.33
4554329  ALEXANDRIA        VA    22314  SFD     7.500    7.234   $2,715.22  180   1-Dec-11 $292,015.41
4554398  HOUSTON           TX    77005  SFD     7.250    6.984   $2,099.59  180   1-Jan-12 $230,000.00
4554712  CINCINNATI        OH    45208  SFD     7.125    6.859   $2,116.03  180   1-Jan-12 $233,600.00
4554793  BIRMINGHAM        AL    35242  SFD     6.625    6.359   $1,931.59  180   1-Jan-12 $220,000.00
4554845  HALLANDALE        FL    33009  SFD     7.125    6.859   $2,331.98  180   1-Jan-12 $257,440.00
4554888  WOODBURY          MN    55125  SFD     7.250    6.984   $2,709.38  180   1-Jan-12 $296,800.00
4555049  MANALAPAN         NJ    07726  SFD     6.750    6.484   $2,185.73  180   1-Jan-12 $247,000.00
4555120  SANGER            TX    76266  SFD     7.750    7.250   $2,108.46  180   1-Nov-11 $222,672.13
4555157  CUMMING           GA    30131  SFD     6.750    6.484   $1,946.81  180   1-Jan-12 $220,000.00
4555377  CINCINNATI        OH    45208  SFD     7.000    6.734   $2,113.15  180   1-Dec-11 $234,358.27
4555614  DALLAS            TX    75248  SFD     7.875    7.250   $3,063.50  180   1-Dec-11 $322,056.19
4555805  IRVINE            CA    92714  PUD     7.500    7.234   $4,264.26  180   1-Dec-11 $458,610.74
4556135  MANHASSET HILLS   NY    11040  SFD     7.750    7.250   $2,400.26  180   1-Jan-12 $255,000.00
4556182  MT PLEASANT       SC    29464  SFD     7.500    7.234   $2,183.12  180   1-Dec-11 $234,788.76
4556241  AUSTIN            TX    78733  SFD     7.250    6.984   $2,446.48  180   1-Dec-11 $267,172.69
4556405  CHATHAM           NJ    07928  SFD     7.250    6.984   $2,432.78  180   1-Jan-12 $266,500.00
4556408  GRANITE SPRINGS   NY    10527  SFD     7.125    6.859   $2,608.80  180   1-Jan-12 $288,000.00
4556446  WEST LINN         OR    97068  SFD     7.625    7.250   $2,335.32  180   1-Dec-11 $249,253.23
4556542  WESTLAKE VILLAGE  CA    91362  SFD     7.750    7.250   $7,530.21  180   1-Jan-12 $800,000.00
4556769  LAKE ARROWHEAD    CA    92352  SFD     7.000    6.734   $2,363.92  180   1-May-11 $256,224.85
4556935  AUSTIN            TX    78738  SFD     7.750    7.250   $4,216.92  180   1-Dec-11 $446,676.42
4557017  JOHNSON CITY      TX    78636  SFD     7.625    7.250   $2,176.53  180   1-Jan-12 $233,000.00
4557154  MIAMI             FL    33138  SFD     7.750    7.250     $357.69  180   1-Dec-11  $37,887.73
4557270  FALMOUTH          ME    04105  SFD     7.625    7.250   $2,708.98  180   1-Jan-12 $290,000.00
4557311  SAN CLEMENTE      CA    92673  SFD     8.000    7.250   $2,866.96  180   1-Dec-11 $299,133.04
4557762  ALLENHURST        NJ    07711  SFD     7.375    7.109   $2,023.84  180   1-Jan-12 $220,000.00
4557794  EVERETT           WA    98201  SFD     7.375    7.109   $2,851.76  180   1-Dec-11 $309,053.45
4557845  GLEN HEAD         NY    11545  SFD     7.625    7.250   $1,634.73  180   1-Jan-12 $175,000.00
4557873  WOODLAND HILLS    CA    91367  SFD     7.875    7.250   $2,371.13  180   1-Jan-12 $250,000.00
4557959  HOUSTON           TX    77057  SFD     7.250    6.984   $2,702.08  180   1-Dec-11 $295,086.25
4558042  FALLS CHURCH      VA    22043  SFD     7.500    7.234   $2,410.24  180   1-Sep-11 $256,829.46
4558048  BETHESDA          MD    20817  SFD     7.125    6.859   $3,224.76  180   1-Oct-11 $352,647.15
4558052  ROLAND            AR    72135  SFD     8.000    7.250   $2,981.63  180   1-Oct-11 $309,277.07
4558057  FRASER            CO    80442  SFD     7.250    6.984   $2,373.44  180   1-Oct-11 $257,577.60
4558072  WILDWOOD          MO    63038  SFD     7.875    7.250   $2,228.86  180   1-Oct-11 $232,926.44
4558075  BRYN MAWR         PA    19010  SFD     7.125    6.859   $2,264.58  180   1-Oct-11 $247,645.45
4558089  CHARLESTOWN       MA    02129  MF2     7.500    7.234   $2,845.93  180   1-Oct-11 $304,201.02
4558095  FREMONT           CA    94539  SFD     7.375    7.109   $2,759.77  180   1-Sep-11 $296,302.01
4558136  CHEVY CHASE       MD    20815  SFD     7.750    7.250   $3,275.64  180   1-Sep-11 $343,847.47
4558143  POTOMAC           MD    20854  SFD     8.125    7.250   $2,936.80  180   1-Oct-11 $301,976.07
4558145  ATLANTA           GA    30350  SFD     7.875    7.250   $2,494.43  180   1-Oct-11 $260,613.58
4558146  DUXBURY           MA    02331  SFD     8.000    7.250   $2,687.78  180   1-Nov-11 $279,619.02
4558148  FALLS CHURCH      VA    22042  SFD     7.875    7.250   $2,385.36  180   1-Nov-11 $250,025.40
4558157  VISALIA           CA    93291  SFD     8.000    7.250   $2,414.56  180   1-Sep-11 $249,711.01
4558159  LITTLETON         CO    80127  SFD     7.875    7.250   $2,333.19  180   1-Oct-11 $243,829.38
4558167  CREEDMOOR         NC    27522  SFD     8.250    7.250   $3,395.50  180   1-Aug-11 $344,985.32
4558170  NEW FAIRFIELD     CT    06812  SFD     7.000    6.734   $2,516.72  180   1-Oct-11 $277,334.35
4558173  CARY              NC    27511  SFD     7.500    7.234   $4,635.07  180   1-Oct-11 $495,441.38
4558175  SADDLE RIVER      NJ    07458  SFD     8.250    7.250   $9,070.82  180   1-May-11 $888,296.42
4558176  GREENVILLE        SC    29607  SFD     8.000    7.250   $2,691.12  180   1-Oct-11  $96,423.39
4558178  DESTIN            FL    32541  SFD     7.375    7.109   $2,226.21  180   1-Nov-11 $240,517.62
4558180  PLANO             TX    75093  SFD     7.125    6.859   $2,536.33  180   1-Nov-11 $278,247.15
4558186  OLD SAYBROOK      CT    06475  SFD     7.625    7.250   $2,335.33  180   1-Aug-11 $246,116.41
4558191  LOS ANGELES       CA    90272  SFD     8.125    7.250   $4,130.77  180   1-Sep-11 $421,402.48
4558196  CHANDLER          AZ    85226  SFD     7.750    7.250   $8,000.85  180   1-Oct-11 $841,263.42
4558197  BIRMINGHAM        AL    35243  SFD     7.625    7.250   $4,203.58  180   1-Sep-11 $444,571.72
4558200  ALPHARETTA        GA    30201  SFD     7.875    7.250   $2,380.61  180   1-Sep-11 $248,037.30
4558225  SANTA CRUZ        CA    95060  SFD     7.875    7.250   $3,224.73  180   1-Oct-11 $336,999.96
4558232  EAST MARION       NY    11939  SFD     7.875    7.250   $2,314.22  180   1-Oct-11 $241,847.02
4558237  MERION STATION    PA    19066  SFD     8.000    7.250   $3,392.57  180   1-Oct-11 $350,974.80
4558244  LAGUNA BEACH      CA    92651  SFD     7.750    7.250   $3,600.38  180   1-Sep-11 $377,725.05
4558249  LONGMONT          CO    80501  SFD     7.875    7.250   $2,731.54  180   1-Nov-11 $286,311.40
4558251  BRECKENRIDGE      CO    80424  SFD     8.000    7.250   $5,147.15  180   1-Sep-11 $532,311.53
4558253  NEW CANAAN        CT    06840  SFD     8.125    7.250   $2,436.10  180   1-Oct-11 $250,816.04
4558262  STAMFORD          CT    06902  SFD     7.375    7.109   $3,032.07  180   1-Oct-11 $326,359.73
4558268  TAMPA             FL    33629  SFD     8.625    7.250   $9,920.81  180   1-Sep-11 $988,948.32
4558271  BROOKLINE         MA    02146  SFD     8.125    7.250   $3,370.09  180   1-Nov-11 $344,922.27
4558272  NEW YORK          NY    10280  HCO     8.125    7.250   $2,407.21  180   1-Nov-10 $239,544.60
4558277  DULUTH            GA    30155  SFD     8.000    7.250   $2,217.11  180   1-Nov-11 $230,654.65
4558280  LINCOLNSHIRE      IL    60069  SFD     7.625    7.250   $2,802.39  180   1-Jan-12 $300,000.00
4558384  BROOKFIELD        CT    06804  SFD     7.375    7.109   $2,658.58  180   1-Jan-12 $289,000.00
4558388  VALLEY COTTAGE    NY    10989  LCO     7.750    7.250     $564.77  180   1-Jan-12  $60,000.00
4558504  CHEVY CHASE       MD    20815  SFD     7.500    7.234   $6,025.59  180   1-Jan-12 $650,000.00
4558540  RALEIGH           NC    27606  SFD     6.750    6.484   $2,150.33  180   1-Sep-11 $239,839.65
4558627  LOS ANGELES       CA    90068  SFD     7.375    7.109   $4,291.45  180   1-Jan-12 $466,500.00
4558668  MARIETTA          GA    30066  SFD     8.000    7.250     $611.62  180   1-Dec-11  $63,815.05
4558714  LYNDHURST         NJ    07071  SFD     7.625    7.250   $1,933.65  180   1-Jan-12 $207,000.00
4558895  GOLDEN BEACH      FL    33160  SFD     7.250    6.984   $2,775.11  180   1-Jan-12 $304,000.00
4559296  PROVO             UT    84604  SFD     7.750    7.250   $2,400.25  180   1-Dec-11 $254,246.62
4560437  NEWTOWN SQUARE    PA    19073  SFD     7.250    6.984   $1,999.17  180   1-Jan-12 $219,000.00
4560770  SAN FRANCISCO     CA    94117  MF2     7.875    7.250   $3,201.02  180   1-Jan-12 $337,500.00
4561175  GOLDSBORO         NC    27530  SFD     7.875    7.250   $2,250.68  180   1-Nov-11 $235,908.65
4562333  BARTLESVILLE      OK    74006  SFD     7.625    7.250   $2,899.54  180   1-Jan-12 $310,400.00

                                                                                        $94,512,944.96
<S>            <C>   

COUNT:                 321
WAC:           7.739777642
WAM:           178.1498648
WALTV:         70.02674541
</TABLE>

<TABLE>
<CAPTION>

NASCOR
NMI / 1997-1  Exhibit F-2
15 YEAR FIXED RATE NON-RELOCATION AND
RELOCATION LOANS


(i)      (ii)              (x)  (xi)   (xii)    (xiii)   (xiv)    (xv)    (xvi)
- -----    -----------------------------------------------------------------------

MORTGAGE                               MORTGAGE          T.O.P.   MASTER  FIXED
LOAN                                   INSURANCE SERVICE MORTGAGE SERVICE RETAINED
NUMBER   CITY              LTV  SUBSIDYCODE      FEE     LOAN     FEE     YIELD
- -------- -----------------------------------------------------------------------
<S>      <C>               <C>     <C>    <C>    <C>     <C>     <C>      <C>

4499338  CINCINNATI        48.30                 0.250           0.016    0.000
4507374  MOORESTOWN        67.57                 0.250           0.016    0.000
4509301  NORTH HILLS       70.00                 0.250           0.016    0.000
4519604  STATEN ISLAND     57.89                 0.250           0.016    0.859
4523239  SOUTHBOROUGH      73.75                 0.250           0.016    0.359
4529099  LAKE JACKSON      94.97          33     0.250           0.016    0.359
4532532  BONITA            75.00                 0.250           0.016    1.109
4532687  SYOSSET           70.00                 0.250           0.016    1.359
4532863  PORTLAND          61.54                 0.250           0.016    0.234
4533715  HIGHLAND          60.81                 0.250           0.016    0.109
4534066  AUSTIN            79.80                 0.250           0.016    1.234
4534258  BEDFORD HILLS     74.09                 0.250           0.016    0.359
4534572  KITTY HAWK        75.00                 0.250           0.016    0.734
4535298  SUNNYVALE         80.00                 0.250           0.016    0.984
4535616  MIAMI             80.00                 0.250           0.016    0.484
4535803  QUEENSBURY        65.87                 0.250           0.016    0.484
4535914  LOS ANGELES       80.00                 0.250           0.016    0.000
4536061  MASHPEE           76.67                 0.250           0.016    0.234
4536364  HUMBLE            88.12          17     0.250           0.016    0.609
4536862  LOS ANGELES       80.00                 0.250           0.016    0.000
4537515  RICHMOND HILL     70.21                 0.250           0.016    0.234
4537892  DUNWOODY          79.79                 0.250           0.016    0.359
4538193  LITTLE NECK       90.00          33     0.250           0.016    0.734
4538256  AMITYVILLE HARBOR 75.00                 0.250           0.016    1.109
4538469  SCOTTSDALE        70.07                 0.250           0.016    0.109
4538697  SNOWMASS VILLAGE  49.44                 0.250           0.016    0.484
4538755  YORKTOWN          80.00                 0.250           0.016    0.609
4538977  PATCHOGUE         80.00                 0.250           0.016    1.109
4539315  BRIGHTON          57.69                 0.250           0.016    0.000
4539594  JACKSON HEIGHTS   80.00                 0.250           0.016    0.734
4539964  READING TOWNSHIP  69.98                 0.250           0.016    0.484
4540190  KETTERING         74.07                 0.250           0.016    0.484
4540441  EMMAUS            79.37                 0.250           0.016    0.234
4540951  NEW CITY          80.00                 0.250           0.016    0.859
4541002  DUBLIN            80.00                 0.250           0.016    0.859
4541004  ZIONSVILLE        68.77                 0.250           0.016    0.859
4541276  CORPUS CHRISTI    95.00          06     0.250           0.016    0.984
4541371  SUGAR LAND        40.65                 0.250           0.016    0.359
4541380  RIDGEFIELD        75.00                 0.250           0.016    0.984
4541442  THE WOODLANDS     80.00                 0.250           0.016    0.000
4541450  CHICAGO           65.22                 0.250           0.016    0.000
4541478  RANCHO PALOS      40.32GD 3YR           0.250           0.016    0.000
         VERDES
4541480  NORTH SALEM       80.00                 0.250           0.016    0.734
4541515  CARMEL            80.00                 0.250           0.016    0.984
4541615  SIMPSONVILLE      61.71                 0.250           0.016    0.359
4541719  CARMEL            63.56                 0.250           0.016    0.234
4541743  NOVI              67.34                 0.250           0.016    0.000
4541869  MARCO ISLAND      80.00                 0.250           0.016    1.234
4541910  MCLEAN            80.00                 0.250           0.016    0.000
4541921  UNION             75.84                 0.250           0.016    0.234
4541975  PAWLEYS ISLAND    75.00                 0.250           0.016    0.109
4542062  COVINGTON         80.00                 0.250           0.016    0.609
4542093  FAIRFAX STATION   79.49                 0.250           0.016    0.109
4542135  ALEXANDRIA        71.45                 0.250           0.016    0.609
4542149  CENTER MORICHES   69.06                 0.250           0.016    0.000
4542408  WESTFIELD         89.33                 0.250           0.016    0.359
4542417  VANBUREN          75.00                 0.250           0.016    0.484
4542558  AUSTIN            70.73                 0.250           0.016    0.484
4542635  FARMINGTON        61.24                 0.250           0.016    0.109
4542879  MILPITAS          71.75                 0.250           0.016    0.109
4543096  LAGRANGEVILLE     74.98                 0.250           0.016    1.234
4543131  EUGENE            58.70                 0.250           0.016    0.484
4543254  PLYMOUTH          80.00                 0.250           0.016    0.484
4543295  BLUE BELL         95.00                 0.250           0.016    0.109
4543303  MEDFORD           72.00                 0.250           0.016    0.234
4543394  YORKTOWN HEIGHTS  72.05                 0.250           0.016    1.234
4543412  CHAMBERSBURG      80.00                 0.250           0.016    0.234
4543431  NASHVILLE         80.00                 0.250           0.016    0.109
4543703  LINCOLN           55.00                 0.250           0.016    0.000
4543732  PANAMA CITY BEACH 80.00                 0.250           0.016    1.859
4543765  BETHESDA          77.41                 0.250           0.016    0.484
4543802  WEST CHESTER      79.23                 0.250           0.016    0.234
4543808  AZLE              80.00                 0.250           0.016    0.609
4543816  NEWPORT BEACH     59.52                 0.250           0.016    0.234
4543824  WILTON            50.19                 0.250           0.016    0.234
4543834  DANVILLE          54.47                 0.250           0.016    0.109
4543880  ROCKPORT          65.59                 0.250           0.016    0.234
4543907  ARLINGTON         79.97                 0.250           0.016    0.734
4544048  PHILADELPHIA      80.00                 0.250           0.016    0.859
4544060  SOUTH BARRINGTON  50.00                 0.250           0.016    0.484
4544116  SAN JOSE          90.00          33     0.250           0.016    0.234
4544123  DANVILLE          80.00                 0.250           0.016    0.609
4544226  MIAMI BEACH       74.67                 0.250           0.016    1.234
4544259  IDAHO FALLS       76.33                 0.250           0.016    0.234
4544316  MISSION           73.30                 0.250           0.016    0.734
4544400  UNIVERSITY PARK   80.00                 0.250           0.016    0.734
4544411  WESTPORT          46.30                 0.250           0.016    0.359
4544434  FRESNO            90.00                 0.250           0.016    0.484
4544558  SAN JOSE          74.94                 0.250           0.016    0.984
4544664  SYOSSET           79.86                 0.250           0.016    0.484
4544741  LAFAYETTE         78.67                 0.250           0.016    0.859
4544834  BENTONVILLE       61.73                 0.250           0.016    0.359
4545110  TIBURON           79.93GD 5YR           0.250           0.016    0.484
4545278  BARRINGTON        51.60                 0.250           0.016    0.000
4545298  CRANFORD          83.44          11     0.250           0.016    0.359
4545433  MORAGA            72.22                 0.250           0.016    0.234
4545440  BOCA RATON        33.71                 0.250           0.016    0.000
4545517  BEAUMONT          80.00                 0.250           0.016    0.359
4545602  CHINO HILLS       76.92                 0.250           0.016    0.359
4545633  SAN JOSE          68.67                 0.250           0.016    0.000
4545655  SEATTLE           80.00                 0.250           0.016    0.484
4545661  MELVILLE          60.34                 0.250           0.016    0.484
4545664  MESA              74.99                 0.250           0.016    0.984
4545719  MANSFIELD         76.47                 0.250           0.016    0.359
4545867  GRESHAM           80.00                 0.250           0.016    0.359
4545884  BOISE             79.99                 0.250           0.016    0.359
4545885  BUFORD            80.00                 0.250           0.016    0.000
4545948  DALLAS            65.48                 0.250           0.016    0.484
4546022  HOUSTON           80.00                 0.250           0.016    0.000
4546139  OLD HICKORY       79.44                 0.250           0.016    0.484
4546159  WESTON            25.40                 0.250           0.016    0.734
4546166  SAN MARTIN        70.00                 0.250           0.016    1.109
4546189  NEW CITY          29.55                 0.250           0.016    0.859
4546201  LITTLE ROCK       62.71                 0.250           0.016    0.359
4546260  LAGUNA NIGUEL     80.00                 0.250           0.016    0.609
4546294  BLOOMFIELD        90.00          01     0.250           0.016    0.484
4546311  HOUSTON           80.00                 0.250           0.016    0.609
4546369  FLUSHING          34.88                 0.250           0.016    0.859
4546399  GREENSBORO        85.88          33     0.250           0.016    0.234
4546407  NASHVILLE         64.00                 0.250           0.016    0.000
4546497  MAHWAH            80.00                 0.250           0.016    0.109
4546665  REMSENBURG        75.40                 0.250           0.016    0.234
4546727  WESTFIELD         69.57                 0.250           0.016    0.734
4546743  SACRAMENTO        80.00                 0.250           0.016    0.734
4546822  WASHINGTON        64.27                 0.250           0.016    0.859
4546852  FREMONT           80.00                 0.250           0.016    0.484
4546909  CHARLESTOWN       80.00                 0.250           0.016    0.484
4546919  RANCHO PALOS      61.29                 0.250           0.016    0.234
         VERDES
4546971  PITTSFORD         64.74GD 3YR           0.250           0.016    0.000
4547016  VENTURA           71.46                 0.250           0.016    0.000
4547036  PORT JERVIS       52.63                 0.250           0.016    0.734
4547040  ALAMEDA           80.00                 0.250           0.016    0.734
4547047  CULVER CITY       74.98                 0.250           0.016    0.884
4547063  LARGO             80.00                 0.250           0.016    0.609
4547125  VIRGINIA BEACH    80.00                 0.250           0.016    0.000
4547181  PAINTED POST      69.81                 0.250           0.016    0.234
4547302  GOLDEN BEACH      46.01                 0.250           0.016    0.000
4547331  MEMPHIS           71.11                 0.250           0.016    0.234
4547340  TULSA             79.57                 0.250           0.016    0.359
4547364  KAYSVILLE         66.67                 0.250           0.016    0.234
4547386  MISSION VIEJO     74.88                 0.250           0.016    0.234
4547542  PHOENIX           77.14                 0.250           0.016    0.359
4547597  ELLICOTT CITY     65.13                 0.250           0.016    0.359
4547646  GREAT FALLS       54.17                 0.250           0.016    0.359
4547649  LONETREE          80.00                 0.250           0.016    0.484
4547655  PORT ARANSAS      90.00          01     0.250           0.016    0.484
4547804  MILFORD           79.62                 0.250           0.016    0.484
4547841  LAKE OSWEGO       78.67                 0.250           0.016    0.234
4547854  DANVILLE          50.00                 0.250           0.016    0.000
4547911  SAN ANTONIO       64.52                 0.250           0.016    0.234
4547913  ELLICOTT CITY     80.00                 0.250           0.016    0.000
4547960  SOUTHLAKE         80.00                 0.250           0.016    0.234
4548137  MARGATE CITY      70.00                 0.250           0.016    0.859
4548189  SANTA BARBARA     74.56                 0.250           0.016    0.359
4548335  NIWOT             27.75                 0.250           0.016    0.234
4548363  ROWLAND HEIGHTS   90.00                 0.250           0.016    1.109
4548623  MEDINA            57.63                 0.250           0.016    0.000
4548629  FAIRFAX           86.57          33     0.250           0.016    0.000
4548732  OLD HICKORY       75.00                 0.250           0.016    0.359
4548751  WOODINVILLE       86.96          01     0.250           0.016    0.234
4548895  BURKE             80.00                 0.250           0.016    0.359
4548898  PHILADELPHIA      66.67                 0.250           0.016    0.000
4548921  WILTON            57.89                 0.250           0.016    0.000
4548972  RICHMOND          68.75                 0.250           0.016    0.000
4549047  COPPELL           79.99                 0.250           0.016    0.109
4549129  SAN ANTONIO       72.29                 0.250           0.016    0.234
4549159  SAN ANTONIO       66.91                 0.250           0.016    0.000
4549186  RIDGEFIELD        75.04                 0.250           0.016    0.000
4549315  MUTTONTOWN        49.38                 0.250           0.016    0.000
4549450  SAN ANSELMO       69.71                 0.250           0.016    0.234
4549547  NORTH PALM BEACH  86.96          33     0.250           0.016    0.234
4549652  LUDLOW            73.64                 0.250           0.016    0.859
4549704  WINDHAM           79.31                 0.250           0.016    0.000
4549762  KINGSTON          73.28                 0.250           0.016    0.234
4549902  SPRINGFIELD       61.18                 0.250           0.016    0.734
4550126  NEW PORT RICHEY   71.05                 0.250           0.016    0.609
4550250  CHEVY CHASE       66.31                 0.250           0.016    0.484
4550257  FRANKLIN PARK     69.51                 0.250           0.016    0.484
4550272  SOUTHLAKE         69.98                 0.250           0.016    0.000
4550488  HUNTINGTON BEACH  77.72                 0.250           0.016    0.359
4550500  ALPHARETTA        62.72                 0.250           0.016    0.000
4550528  OLYMPIA           71.45                 0.250           0.016    0.109
4550529  BRENTWOOD         33.78                 0.250           0.016    0.000
4550567  OGDEN             60.16                 0.250           0.016    0.000
4550604  SAVANNAH          72.38                 0.250           0.016    0.484
4550731  CASTRO VALLEY     73.25                 0.250           0.016    0.109
4550852  RESTON            36.65GD 4YR           0.250           0.016    0.000
4550962  RANCHO SANTA FE   32.84                 0.250           0.016    0.109
4551053  REDMOND           80.00                 0.250           0.016    0.000
4551069  MIDLOTHIAN        79.76                 0.250           0.016    0.000
4551168  HORSEHEADS        80.00                 0.250           0.016    0.000
4551219  GERMANTOWN        66.33                 0.250           0.016    0.000
4551369  GOLDEN            58.60                 0.250           0.016    0.109
4551387  DERWOOD           60.00                 0.250           0.016    0.000
4551436  BROOKLYN          41.15                 0.250           0.016    0.000
4551466  ROCHESTER HILLS   55.56                 0.250           0.016    0.000
4551472  MILL CREEK        80.00                 0.250           0.016    0.000
4551485  TUCSON            75.47                 0.250           0.016    0.000
4551489  INDIANAPOLIS      80.00                 0.250           0.016    0.734
4551494  YORBA LINDA       80.00                 0.250           0.016    0.234
4551497  SCOTTSADALE       80.00                 0.250           0.016    0.484
4551504  CHEVY CHASE       58.14                 0.250           0.016    0.000
4551505  MOUNTAIN VIEW     67.42                 0.250           0.016    0.734
4551606  CYPRESS           79.98                 0.250           0.016    0.359
4551823  YORBA LINDA       80.00                 0.250           0.016    0.000
4552164  CARSON CITY       80.00                 0.250           0.016    0.734
4552192  CLEARWATER        73.17                 0.250           0.016    0.734
4552232  MURFREESBORO      83.16          17     0.250           0.016    0.000
4552309  ATLANTA           80.00                 0.250           0.016    0.000
4552422  ANNAPOLIS         74.93                 0.250           0.016    0.000
4552647  CANYON COUNTRY    44.44                 0.250           0.016    0.000
4552760  WINHALL           75.00                 0.250           0.016    0.609
4552785  REDWOOD CITY      74.23                 0.250           0.016    0.359
4552788  HAUPPAUGE         45.57                 0.250           0.016    0.234
4552826  SAN ANTONIO       73.44                 0.250           0.016    0.359
4552828  SOUTHLAKE         80.00                 0.250           0.016    0.000
4552837  SPARTANBURG       77.54                 0.250           0.016    0.000
4552879  CASTLE ROCK       73.06                 0.250           0.016    0.000
4552964  HOUSTON           74.81                 0.250           0.016    0.000
4553048  COLUMBIA          90.00                 0.250           0.016    0.734
4553224  ALAMO             48.43                 0.250           0.016    0.359
4553271  VALLEY CENTER     74.68                 0.250           0.016    0.359
4553285  PASADENA          57.17                 0.250           0.016    0.484
4553395  SAN CLEMENTE      79.69                 0.250           0.016    0.000
4553401  CAMPBELL          75.00                 0.250           0.016    0.000
4553417  TUCSON            76.03                 0.250           0.016    0.359
4553559  WINSTON-SALEM     49.83                 0.250           0.016    0.000
4553665  BIRMINGHAM        54.05                 0.250           0.016    0.000
4553674  RICHMOND          80.00                 0.250           0.016    0.000
4553678  NORTHBROOK        79.86                 0.250           0.016    0.109
4553802  MARIETTA          80.00                 0.250           0.016    0.000
4553836  DALLAS            80.00                 0.250           0.016    0.359
4553849  FRISCO            70.00                 0.250           0.016    0.234
4553914  KENT              68.08                 0.250           0.016    0.484
4553918  SCOTTSDALE        90.00                 0.250           0.016    0.000
4553949  CHERRY HILL       33.18                 0.250           0.016    0.234
4553988  GLENWOOD SPRINGS  59.08                 0.250           0.016    0.000
4554070  ROSEBURG          80.00                 0.250           0.016    0.000
4554329  ALEXANDRIA        73.23                 0.250           0.016    0.000
4554398  HOUSTON           64.43                 0.250           0.016    0.000
4554712  CINCINNATI        80.00                 0.250           0.016    0.000
4554793  BIRMINGHAM        48.89                 0.250           0.016    0.000
4554845  HALLANDALE        80.00                 0.250           0.016    0.000
4554888  WOODBURY          80.00                 0.250           0.016    0.000
4555049  MANALAPAN         79.55                 0.250           0.016    0.000
4555120  SANGER            80.00                 0.250           0.016    0.234
4555157  CUMMING           84.42          33     0.250           0.016    0.000
4555377  CINCINNATI        79.99                 0.250           0.016    0.000
4555614  DALLAS            75.12                 0.250           0.016    0.359
4555805  IRVINE            79.72                 0.250           0.016    0.000
4556135  MANHASSET HILLS   75.00                 0.250           0.016    0.234
4556182  MT PLEASANT       74.64                 0.250           0.016    0.000
4556241  AUSTIN            80.00                 0.250           0.016    0.000
4556405  CHATHAM           65.00                 0.250           0.016    0.000
4556408  GRANITE SPRINGS   80.00                 0.250           0.016    0.000
4556446  WEST LINN         50.00                 0.250           0.016    0.109
4556542  WESTLAKE VILLAGE  68.09                 0.250           0.016    0.234
4556769  LAKE ARROWHEAD    78.74                 0.250           0.016    0.000
4556935  AUSTIN            80.00                 0.250           0.016    0.234
4557017  JOHNSON CITY      75.16                 0.250           0.016    0.109
4557154  MIAMI             43.18                 0.250           0.016    0.234
4557270  FALMOUTH          70.73                 0.250           0.016    0.109
4557311  SAN CLEMENTE      75.00                 0.250           0.016    0.484
4557762  ALLENHURST        68.75                 0.250           0.016    0.000
4557794  EVERETT           56.67                 0.250           0.016    0.000
4557845  GLEN HEAD         72.92                 0.250           0.016    0.109
4557873  WOODLAND HILLS    78.13                 0.250           0.016    0.359
4557959  HOUSTON           80.00                 0.250           0.016    0.000
4558042  FALLS CHURCH      59.77                 0.250           0.016    0.000
4558048  BETHESDA          80.00                 0.250           0.016    0.000
4558052  ROLAND            80.00                 0.250           0.016    0.484
4558057  FRASER            65.82                 0.250           0.016    0.000
4558072  WILDWOOD          67.14                 0.250           0.016    0.359
4558075  BRYN MAWR         27.47                 0.250           0.016    0.000
4558089  CHARLESTOWN       78.72                 0.250           0.016    0.000
4558095  FREMONT           80.00                 0.250           0.016    0.000
4558136  CHEVY CHASE       80.00                 0.250           0.016    0.234
4558143  POTOMAC           58.10                 0.250           0.016    0.609
4558145  ATLANTA           67.44                 0.250           0.016    0.359
4558146  DUXBURY           75.00                 0.250           0.016    0.484
4558148  FALLS CHURCH      78.84                 0.250           0.016    0.359
4558157  VISALIA           50.53                 0.250           0.016    0.484
4558159  LITTLETON         83.96          13     0.250           0.016    0.359
4558167  CREEDMOOR         52.63                 0.250           0.016    0.734
4558170  NEW FAIRFIELD     59.57                 0.250           0.016    0.000
4558173  CARY              59.52                 0.250           0.016    0.000
4558175  SADDLE RIVER      62.33                 0.250           0.016    0.734
4558176  GREENVILLE        80.00                 0.250           0.016    0.484
4558178  DESTIN            42.09                 0.250           0.016    0.000
4558180  PLANO             79.64                 0.250           0.016    0.000
4558186  OLD SAYBROOK      75.30                 0.250           0.016    0.109
4558191  LOS ANGELES       35.02                 0.250           0.016    0.609
4558196  CHANDLER          40.48                 0.250           0.016    0.234
4558197  BIRMINGHAM        56.96                 0.250           0.016    0.109
4558200  ALPHARETTA        64.86                 0.250           0.016    0.359
4558225  SANTA CRUZ        60.39                 0.250           0.016    0.359
4558232  EAST MARION       80.00                 0.250           0.016    0.359
4558237  MERION STATION    65.74                 0.250           0.016    0.484
4558244  LAGUNA BEACH      75.00                 0.250           0.016    0.234
4558249  LONGMONT          80.00                 0.250           0.016    0.359
4558251  BRECKENRIDGE      56.69                 0.250           0.016    0.484
4558253  NEW CANAAN        48.19                 0.250           0.016    0.609
4558262  STAMFORD          80.00                 0.250           0.016    0.000
4558268  TAMPA             65.57                 0.250           0.016    1.109
4558271  BROOKLINE         45.51                 0.250           0.016    0.609
4558272  NEW YORK          70.82                 0.250           0.016    0.609
4558277  DULUTH            80.00                 0.250           0.016    0.484
4558280  LINCOLNSHIRE      76.78                 0.250           0.016    0.109
4558384  BROOKFIELD        69.64                 0.250           0.016    0.000
4558388  VALLEY COTTAGE    75.00                 0.250           0.016    0.234
4558504  CHEVY CHASE       69.52                 0.250           0.016    0.000
4558540  RALEIGH           72.97                 0.250           0.016    0.000
4558627  LOS ANGELES       66.64                 0.250           0.016    0.000
4558668  MARIETTA          80.00                 0.250           0.016    0.484
4558714  LYNDHURST         69.70                 0.250           0.016    0.109
4558895  GOLDEN BEACH      80.00                 0.250           0.016    0.000
4559296  PROVO             75.00                 0.250           0.016    0.234
4560437  NEWTOWN SQUARE    69.52                 0.250           0.016    0.000
4560770  SAN FRANCISCO     75.00                 0.250           0.016    0.359
4561175  GOLDSBORO         84.75          13     0.250           0.016    0.359
4562333  BARTLESVILLE      80.00                 0.250           0.016    0.109


<S>            <C>  

COUNT:                 321
WAC:           7.739777642
WAM:           178.1498648
WALTV:         70.02674541

</TABLE>

<TABLE>
<CAPTION>


NASCOR
NMI / 1997-1  Exhibit F-3
(Part A)
15 YEAR FIXED RATE NON-RELOCATION AND RELOCAITON
LOANS


(i)     (ii)                             (iii)    (iv)     (v)      (vi)    (vii)    (viii)   (ix)
- -----   --------------------------- ------------- -------- -------- ---------------- -----------------------
                                                           NET                                  CUT-OFF
MORTGAGE                                          MORTGAGE MORTGAGE CURRENT ORIGINAL SCHEDULED  DATE
LOAN                                ZIP  PROPERTY INTEREST INTEREST MONTHLY TERM TO  MATURITY   PRINCIPAL
NUMBER  CITY                 STATE  CODE TYPE     RATE     RATE     PAYMENT MATURITY DATE       BALANCE
- ------------------------------------------------------------------- ---------------- -----------------------
<S>     <C>                  <C>    <C>    <C>     <C>      <C>     <C>        <C>   <C>        <C>

3548146 STATEN ISLAND        NY     10303  LCO     9.000    7.250     $912.84  180    1-Aug-09    $82,327.07
4519765 BOWLING GREEN        KY     42103  SFD     7.250    6.984   $2,702.07  180    1-Feb-11   $285,639.69
4519815 BIG CANOE            GA     30143  SFD     7.625    7.250   $2,265.26  180    1-Dec-10   $232,715.63
4519849 LITTLE ROCK          AR     72212  SFD     7.500    7.234   $2,085.78  180    1-Nov-10   $215,090.27
4520327 LOUISVILLE           KY     40245  SFD     7.000    6.734   $2,247.07  180    1-Feb-11   $241,066.37
4520345 JACKSON              TN     38305  SFD     7.250    6.984   $3,286.31  180    1-Dec-10   $345,017.49
4520349 LAKELAND             TN     38002  SFD     7.250    6.984   $3,651.46  180    1-Jan-11   $372,753.56
4523191 JACKSONVILLE         FL     32225  SFD     7.750    7.250   $3,372.59  180    1-Jun-11   $350,744.81
4538023 MINNEAPOLIS          MN     55416  SFD     7.750    7.250   $2,823.83  180    1-Sep-11   $296,420.19
4538219 WAYZATA              MN     55391  LCO     7.875    7.250   $5,512.87  180    1-Oct-11   $576,121.24
4538698 MINNEAPOLIS          MN     55410  SFD     7.750    7.250   $2,936.79  180    1-Oct-11   $309,216.74
4538865 FLORENCE             OR     97439  SFD     8.000    7.250   $3,249.22  180    1-Oct-11   $337,032.65
4538959 LA CROSSE            WI     54601  SFD     8.125    7.250   $2,888.65  180    1-Nov-11   $298,279.39
4539619 WAYZATA              MN     55391  SFD     7.875    7.250   $4,742.25  180    1-Oct-11   $495,588.17
4543270 ROCHESTER            MN     55902  SFD     8.000    7.250   $2,866.96  180    1-Dec-11   $299,133.04
4543689 ZIONSVILLE           IN     46077  SFD     8.125    7.250   $4,814.42  180    1-Sep-11   $494,225.67
4544004 PROSPECT             KY     40059  SFD     8.000    7.250   $2,470.36  180    1-Sep-11   $240,481.83
4544012 COLUMBUS             OH     43221  SFD     7.500    7.234   $4,913.17  180    1-Sep-11   $523,537.05
4544706 JACKSONVILLE         FL     32256  SFD     8.125    7.250   $2,195.37  180    1-Sep-11   $225,366.93
4544722 MARTINEZ             GA     30907  SFD     7.875    7.250   $2,797.93  180    1-Sep-11   $290,498.13
4545754 SHALIMAR             FL     32579  SFD     8.750    7.250   $3,997.79  180    1-Sep-11   $395,627.97
4546594 LONGWOOD             FL     32779  SFD     8.125    7.250   $3,485.64  180    1-Oct-07    $97,720.86
4546956 EDINA                MN     55424  SFD     7.875    7.250   $2,845.35  180    1-Oct-11   $297,352.91
4547814 CELINA               TX     75009  SFD     8.250    7.250   $2,425.35  180    1-Oct-11   $247,865.59
4547822 ST PAUL              MN     55116  SFD     7.625    7.250   $2,503.47  180    1-Oct-11   $265,583.05
4547827 JACKSON              WY     83001  SFD     8.125    7.250   $2,954.12  180    1-Sep-11   $303,256.90
4547833 HONOLULU             HI     96821  SFD     8.250    7.250   $4,026.08  180    1-Sep-11   $410,259.58
4547837 HOUSTON              TX     77056  SFD     7.875    7.250   $2,314.22  180    1-Sep-11   $241,119.92
4547842 LEAD                 SD     57754  SFD     8.000    7.250     $673.73  180    1-Oct-11    $69,884.72
4547849 CANONSBURG           PA     15317  SFD     7.875    7.250   $2,276.28  180    1-Sep-11   $237,167.15
4547860 PARK CITY            UT     84060  SFD     8.000    7.250   $4,778.26  180    1-Sep-11   $494,162.23
4547865 HOUSTON              TX     77024  SFD     7.625    7.250   $2,204.55  180    1-Oct-11   $233,871.63
4547883 SPRING               TX     77389  SFD     7.625    7.250   $2,580.07  180    1-Sep-11   $272,200.01
4547895 FORT MYERS           FL     33908  SFD     8.500    7.250     $886.27  180    1-Sep-11    $88,994.30
4547926 BRECKENRIDGE         CO     80424  SFD     8.125    7.250   $2,888.65  180    1-Sep-11   $296,535.41
4547930 BRANDON              MS     39042  SFD     7.875    7.250   $2,940.19  180    1-Sep-11   $306,340.92
4547989 TRABUCO CANYON       CA     92679  SFD     7.750    7.250   $2,710.87  180    1-Oct-11   $285,139.87
4547990 ATLANTA              GA     30305  SFD     8.250    7.250   $1,552.22  180    1-Sep-11   $158,172.38
4547999 MERRITT ISLAND       FL     32953  SFD     8.125    7.250   $2,349.43  180    1-Sep-11   $241,182.15
4548002 BEVERLY HILLS        CA     90210  SFD     8.000    7.250   $3,669.70  180    1-Aug-11   $370,953.30
4548005 AUBURN               CA     95602  SFD     8.000    7.250   $3,380.14  180    1-Oct-11   $350,613.10
4548009 ASHLAND              OR     97520  SFD     8.250    7.250   $2,425.36  180    1-Aug-11   $246,418.04
4548011 WESTLAKE VILLAGE     CA     91361  SFD     7.875    7.250   $2,845.35  180    1-Oct-11   $297,352.91
4548012 BIRMINGHAM           MI     48009  SFD     8.125    7.250   $2,166.49  180    1-Oct-11   $223,057.75
4548015 EDGEWOOD             NM     87015  SFD     8.000    7.250   $2,962.52  180    1-Sep-11   $306,380.59
4548018 CRYSTAL BAY          NV     89402  SFD     8.250    7.250   $5,056.37  180    1-Aug-11   $513,732.43
4548022 NORTHRIDGE           CA     91324  SFD     8.250    7.250   $3,395.49  180    1-Oct-11   $347,011.83
4548029 ROSWELL              GA     30076  SFD     7.875    7.250   $2,940.19  180    1-Sep-11   $306,340.92
4548151 SWANSEA              MA     02777  SFD     8.250    7.250   $1,164.17  180    1-Sep-11   $118,629.27
4548573 HENDERSON            NV     89014  SFD     7.875    7.250   $3,945.55  180    1-May-11   $406,049.29
4548621 WEATHERBY LAKE       MO     64152  SFD     8.250    7.250   $2,502.96  180    1-Oct-11   $255,797.30
4549000 WINDHAM              ME     04062  SFD     8.500    7.250   $3,003.46  180    1-Oct-11   $302,452.92
4549402 KNOXVILLE            TN     37922  SFD     8.000    7.250   $2,771.40  180    1-Oct-11   $287,215.65
4549544 SCOTTSDALE           AZ     85260  SFD     8.250    7.250   $3,201.46  180    1-Sep-11   $325,258.88
4550195 TAMPA                FL     33612  SFD     8.125    7.250   $2,532.38  180    1-Oct-11   $260,729.75
4551751 MORRISTOWN           TN     37814  SFD     8.000    7.250   $2,767.57  180    1-Oct-11   $287,072.52
4553925 DELRAY BEACH         FL     33446  SFD     8.375    7.250   $2,443.57  180    1-Nov-11   $248,597.56
4556124 TAMPA                FL     33647  SFD     8.250    7.250   $3,277.38  172    1-Mar-11   $327,975.81
4556130 AMELIA ISLAND        FL     32034  HCO     8.500    7.250   $2,166.43  180    1-Nov-11   $218,779.50
4557818 HEALDSBURG           CA     95448  SFD     7.750    7.250   $4,306.34  180    1-Oct-11   $452,027.00
4557830 WINNETKA             IL     60093  SFD     8.375    7.250   $7,868.29  180    1-Sep-11   $795,905.10
4557833 NAPERVILLE           IL     60564  SFD     7.875    7.250   $2,655.66  180    1-Oct-11   $277,529.38
4557848 STAMFORD             CT     06903  SFD     7.250    6.984   $4,564.32  180    1-Oct-11   $495,341.51
4557933 SHELTER ISLAND       NY     11964  SFD     7.750    7.250   $3,689.81  180    1-Dec-11   $390,841.41
4557956 SCOTCH PLAINS        NJ     07076  SFD     7.250    6.984   $2,411.33  180    1-Oct-11   $261,688.92
4557970 THOUSAND OAKS        CA     91320  SFD     7.125    6.859   $1,358.75  180    1-Jul-11   $146,572.91
4557971 NORTH BERGEN         NJ     07047  COP     7.625    7.250     $126.11  180    1-Mar-11    $13,084.99
4557991 LONG BEACH           CA     90807  SFD     7.750    7.250   $2,294.36  180    1-Sep-11   $240,841.42
4557992 LOS ANGELES          CA     91325  SFD     7.875    7.250   $2,845.35  180    1-Oct-11   $297,352.91
4558002 ATLANTA              GA     30305  SFD     7.000    6.734   $5,306.69  180    1-Nov-11   $586,663.75
4558016 HILLSBOROUGH         CA     94010  SFD     8.250    7.250   $2,910.43  180    1-Nov-11   $298,298.31
4558038 STATEN ISLAND        NY     10301  SFD     7.500    7.234   $2,577.10  180    1-Oct-11   $275,465.42
4558316 NEW YORK             NY     10024  HCO     8.000    7.250   $2,981.64  180    1-Nov-11   $309,738.35
4558318 BRONX                NY     10462  MF2     7.000    6.734     $871.87  180    1-Mar-11    $93,857.92
4558342 GREAT NECK           NY     11024  SFD     8.375    7.250   $3,196.19  180    1-Nov-11   $325,165.62
4558386 SOMERS               NY     10589  SFD     8.125    7.250   $4,092.25  180    1-Sep-11   $420,091.65
4558501 CHICAGO              IL     60610  HCO     7.500    7.234   $4,635.07  180    1-Sep-11   $493,826.92
4558503 ASHBURN              VA     22011  SFD     6.875    6.609   $2,229.64  180    1-Nov-11   $248,330.16
4558517 NEW YORK             NY     10014  COP     7.875    7.250     $602.27  180    1-Aug-11    $62,559.99
4558535 HOLMES               NY     12531  SFD     7.250    6.984   $2,044.82  180    1-Nov-11   $222,552.66
4558961 NORTH PALM BEACH     FL     33408  HCO     8.375    7.250   $2,345.82  180    1-Nov-11   $238,653.68
4561178 DAVIS                CA     95616  SFD     8.000    7.250   $2,389.14  180    1-Dec-11   $249,277.53
4561188 INVERNESS            IL     60010  SFD     7.875    7.250   $3,058.76  180    1-Dec-11   $321,557.65
4561197 SAN FRANCISCO        CA     94117  SFD     7.750    7.250   $3,174.93  180    1-Dec-11   $331,515.44

                                                                                              $25,302,853.39
<S>              <C>

COUNT:                    84
WAC:             7.892874846
WAM:             175.6487422
WALTV:           69.74497469

</TABLE>


<PAGE>


                                   EXHIBIT F-3


            [Schedule of Mortgage Loans Serviced by Other Servicers]

<TABLE>
<CAPTION>



NASCOR
NMI / 1997-1  Exhibit F-3
(Part A)
15 YEAR FIXED RATE NON-RELOCATION AND RELOCAITON
LOANS


(i)     (ii)                 (x)  (xi)   (xii)    (xiii)  (xiv)    (xv)    (xvi)
- -----   ------------------------------------------------------------------------------

MORTGAGE                                 MORTGAGE         T.O.P.   MASTER  FIXED
LOAN                                     INSURANCESERVICE MORTGAGE SERVICE RETAINED
NUMBER  CITY                 LTV  SUBSIDYCODE     FEE     LOAN     FEE     YIELD
- --------------------------------------------------------------------------------------
<S>     <C>                  <C>    <C>    <C>      <C>             <C>     <C>

3548146 STATEN ISLAND        65.45                  0.250           0.016   1.484
4519765 BOWLING GREEN        69.65                  0.250           0.016   0.000
4519815 BIG CANOE            74.62                  0.250           0.016   0.109
4519849 LITTLE ROCK          79.23                  0.250           0.016   0.000
4520327 LOUISVILLE           45.45                  0.250           0.016   0.000
4520345 JACKSON              64.29                  0.250           0.016   0.000
4520349 LAKELAND             80.00                  0.250           0.016   0.000
4523191 JACKSONVILLE         79.27                  0.250           0.016   0.234
4538023 MINNEAPOLIS          34.68                  0.250           0.016   0.234
4538219 WAYZATA              75.00                  0.250           0.016   0.359
4538698 MINNEAPOLIS          80.00                  0.250           0.016   0.234
4538865 FLORENCE             68.69                  0.250           0.016   0.484
4538959 LA CROSSE            80.00                  0.250           0.016   0.609
4539619 WAYZATA              74.07                  0.250           0.016   0.359
4543270 ROCHESTER            50.00                  0.250           0.016   0.484
4543689 ZIONSVILLE           62.50                  0.250           0.016   0.609
4544004 PROSPECT             73.86                  0.250           0.016   0.484
4544012 COLUMBUS             63.10                  0.250           0.016   0.000
4544706 JACKSONVILLE         80.00                  0.250           0.016   0.609
4544722 MARTINEZ             79.30                  0.250           0.016   0.359
4545754 SHALIMAR             61.54                  0.250           0.016   1.234
4546594 LONGWOOD             61.10                  0.250           0.016   0.609
4546956 EDINA                60.00                  0.250           0.016   0.359
4547814 CELINA               76.92                  0.250           0.016   0.734
4547822 ST PAUL              80.00                  0.250           0.016   0.109
4547827 JACKSON              54.30                  0.250           0.016   0.609
4547833 HONOLULU             56.08                  0.250           0.016   0.734
4547837 HOUSTON              80.00                  0.250           0.016   0.359
4547842 LEAD                 60.00                  0.250           0.016   0.484
4547849 CANONSBURG           67.61                  0.250           0.016   0.359
4547860 PARK CITY            54.05                  0.250           0.016   0.484
4547865 HOUSTON              80.00                  0.250           0.016   0.109
4547883 SPRING               79.85                  0.250           0.016   0.109
4547895 FORT MYERS           62.69                  0.250           0.016   0.984
4547926 BRECKENRIDGE         64.66                  0.250           0.016   0.609
4547930 BRANDON              67.98                  0.250           0.016   0.359
4547989 TRABUCO CANYON       80.00                  0.250           0.016   0.234
4547990 ATLANTA              45.71                  0.250           0.016   0.734
4547999 MERRITT ISLAND       69.71                  0.250           0.016   0.609
4548002 BEVERLY HILLS        80.00                  0.250           0.016   0.484
4548005 AUBURN               90.00          01      0.250           0.016   0.484
4548009 ASHLAND              79.37                  0.250           0.016   0.734
4548011 WESTLAKE VILLAGE     51.28                  0.250           0.016   0.359
4548012 BIRMINGHAM           64.29                  0.250           0.016   0.609
4548015 EDGEWOOD             73.81                  0.250           0.016   0.484
4548018 CRYSTAL BAY          80.00                  0.250           0.016   0.734
4548022 NORTHRIDGE           59.32                  0.250           0.016   0.734
4548029 ROSWELL              79.90                  0.250           0.016   0.359
4548151 SWANSEA              67.61                  0.250           0.016   0.734
4548573 HENDERSON            80.00                  0.250           0.016   0.359
4548621 WEATHERBY LAKE       79.38                  0.250           0.016   0.734
4549000 WINDHAM              79.22                  0.250           0.016   0.984
4549402 KNOXVILLE            72.37                  0.250           0.016   0.484
4549544 SCOTTSDALE           62.26                  0.250           0.016   0.734
4550195 TAMPA                57.17                  0.250           0.016   0.609
4551751 MORRISTOWN           80.00                  0.250           0.016   0.484
4553925 DELRAY BEACH         58.17                  0.250           0.016   0.859
4556124 TAMPA                76.74                  0.250           0.016   0.734
4556130 AMELIA ISLAND        80.00                  0.250           0.016   0.984
4557818 HEALDSBURG           75.00                  0.250           0.016   0.234
4557830 WINNETKA             70.00                  0.250           0.016   0.859
4557833 NAPERVILLE           74.57                  0.250           0.016   0.359
4557848 STAMFORD             57.14                  0.250           0.016   0.000
4557933 SHELTER ISLAND       80.00                  0.250           0.016   0.234
4557956 SCOTCH PLAINS        89.85          06      0.250           0.016   0.000
4557970 THOUSAND OAKS        73.17                  0.250           0.016   0.000
4557971 NORTH BERGEN         30.68                  0.250           0.016   0.109
4557991 LONG BEACH           75.00                  0.250           0.016   0.234
4557992 LOS ANGELES          60.00                  0.250           0.016   0.359
4558002 ATLANTA              80.00                  0.250           0.016   0.000
4558016 HILLSBOROUGH         27.65                  0.250           0.016   0.734
4558038 STATEN ISLAND        79.89                  0.250           0.016   0.000
4558316 NEW YORK             80.00                  0.250           0.016   0.484
4558318 BRONX                51.05                  0.250           0.016   0.000
4558342 GREAT NECK           78.80                  0.250           0.016   0.859
4558386 SOMERS               84.16          01      0.250           0.016   0.609
4558501 CHICAGO              50.00                  0.250           0.016   0.000
4558503 ASHBURN              76.45                  0.250           0.016   0.000
4558517 NEW YORK             79.97                  0.250           0.016   0.359
4558535 HOLMES               80.00                  0.250           0.016   0.000
4558961 NORTH PALM BEACH     80.00                  0.250           0.016   0.859
4561178 DAVIS                58.82                  0.250           0.016   0.484
4561188 INVERNESS            75.00                  0.250           0.016   0.359
4561197 SAN FRANCISCO        45.58                  0.250           0.016   0.234

</TABLE>


NASCOR
NMI / 1997-1  Exhibit F-3 (Part B)
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION LOANS


(i)      (xvii)                        (xviii)
- -----    -----------                   -----------

MORTGAGE                               NMI
LOAN                                   LOAN
NUMBER   SERVICER                      SELLER
- -------- -----------------------------------------------------------------------
3548146  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4519765  FIRST UNION MORTGAGE CORP     FIRST UNION MORTGAGE CORP
4519815  FIRST UNION MORTGAGE CORP     FIRST UNION MORTGAGE CORP
4519849  FIRST UNION MORTGAGE CORP     FIRST UNION MORTGAGE CORP
4520327  FIRST UNION MORTGAGE CORP     FIRST UNION MORTGAGE CORP
4520345  FIRST UNION MORTGAGE CORP     FIRST UNION MORTGAGE CORP
4520349  FIRST UNION MORTGAGE CORP     FIRST UNION MORTGAGE CORP
4523191  HOMESIDE LENDING              HOMESIDE LENDING
4538023  FIRST BANK NATIONAL ASSOC     FIRST BANK NATIONAL ASSOC
4538219  FIRST BANK NATIONAL ASSOC     FIRST BANK NATIONAL ASSOC
4538698  FIRST BANK NATIONAL ASSOC     FIRST BANK NATIONAL ASSOC
4538865  FIRST BANK NATIONAL ASSOC     FIRST BANK NATIONAL ASSOC
4538959  FIRST BANK NATIONAL ASSOC     FIRST BANK NATIONAL ASSOC
4539619  FIRST BANK NATIONAL ASSOC     FIRST BANK NATIONAL ASSOC
4543270  FIRST BANK NATIONAL ASSOC     FIRST BANK NATIONAL ASSOC
4543689  NATIONAL CITY MORTGAGE CO     NATIONAL CITY MORTGAGE CO
4544004  NATIONAL CITY MORTGAGE CO     NATIONAL CITY MORTGAGE CO
4544012  NATIONAL CITY MORTGAGE CO     NATIONAL CITY MORTGAGE CO
4544706  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4544722  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4545754  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4546594  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4546956  FIRST BANK NATIONAL ASSOC     FIRST BANK NATIONAL ASSOC
4547814  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547822  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547827  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547833  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547837  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547842  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547849  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547860  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547865  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547883  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547895  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547926  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547930  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547989  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547990  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4547999  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548002  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548005  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548009  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548011  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548012  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548015  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548018  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548022  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548029  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548151  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548573  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4548621  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4549000  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4549402  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4549544  COUNTRYWIDE HOME LOANS        COUNTRYWIDE HOME LOANS
4550195  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4551751  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4553925  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4556124  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4556130  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4557818  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4557830  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4557833  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4557848  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4557933  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4557956  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4557970  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4557971  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4557991  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4557992  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558002  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558016  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558038  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558316  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558318  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558342  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558386  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558501  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558503  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558517  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558535  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4558961  SUNTRUST MORTGAGE, INC.       SUNTRUST MORTGAGE, INC.
4561178  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4561188  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.
4561197  CITICORP MORTGAGE, INC.       CITICORP MORTGAGE, INC.


COUNT:                              84
WAC:                       7.892874846
WAM:                       175.6487422
WALTV:                     69.74497469



<PAGE>


                                    EXHIBIT G


                               REQUEST FOR RELEASE
                       (for Trust Administrator/Custodian)


Loan Information

         Name of Mortgagor:                    -----------------------------

         Servicer
         Loan No.:                             -----------------------------

Custodian/Trust Administrator

         Name:                             -----------------------------

         Address:                          -----------------------------

                                           -----------------------------
         Custodian/Trust Administrator
         Mortgage File No.:                -----------------------------

Seller

         Name:                             -----------------------------

         Address:                          -----------------------------

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

         Certificates:                     Mortgage Pass-Through Certificates,
                                            Series 1997-1


     The undersigned  Master Servicer hereby  acknowledges  that it has received
from First Union National Bank of North Carolina, as Trust Administrator for the
Holders of Mortgage  Pass-Through  Certificates,  Series  1997-1,  the documents
referred to below (the "Documents"). All capitalized terms not otherwise defined
in this Request for Release  shall have the  meanings  given them in the Pooling
and Servicing Agreement dated as of January 30, 1997 (the "Pooling and Servicing
Agreement") among the Trust  Administrator,  the Seller, the Master Servicer and
Firstar Trust Company, as Trustee.

(  ) Promissory Note dated --------------,  199--, in the original principal sum
     of $-----------,  made by --------------------,  payable to, or endorsed to
     the order of, the Trustee.

(  ) Mortgage recorded on --------------------- as instrument no. --------------
     in the  County  Recorder's  Office of the  County of  --------------------,
     State of -----------------------  in book/reel/docket  --------------------
     of official records at page/image ------------.

(  ) Deed  of  Trust   recorded  on   --------------------   as  instrument  no.
     -----------------  in  the  County  Recorder's  Office  of  the  County  of
     -------------------,   State  of   -----------------   in  book/reel/docket
     -------------------- of official records at page/image ------------.

(  ) Assignment  of  Mortgage  or Deed of  Trust  to the  Trustee,  recorded  on
     ------------------------------  as  instrument  no.  --------------  in the
     County Recorder's Office of the County of ----------------------,  State of
     --------------------- in book/reel/docket  -------------------- of official
     records at page/image ------------.

(  ) Other documents, including any amendments, assignments or other assumptions
     of the Mortgage Note or Mortgage.

         (  )  ---------------------------------------------

         (  )  ---------------------------------------------

         (  )  ---------------------------------------------

         (  )  ---------------------------------------------

         The  undersigned  Master  Servicer  hereby  acknowledges  and agrees as
follows:

                  (1) The Master  Servicer  shall hold and retain  possession of
         the  Documents in trust for the benefit of the Trustee,  solely for the
         purposes provided in the Agreement.

                  (2)  The  Master  Servicer  shall  not  cause  or  permit  the
         Documents to become  subject to, or  encumbered  by, any claim,  liens,
         security  interest,  charges,  writs of attachment or other impositions
         nor shall the  Master  Servicer  assert or seek to assert any claims or
         rights of setoff to or against the Documents or any proceeds thereof.

                  (3) The Master  Servicer  shall  return the  Documents  to the
         Trust Administrator when the need therefor no longer exists, unless the
         Mortgage Loan relating to the  Documents  has been  liquidated  and the
         proceeds  thereof  have been  remitted to the  Certificate  Account and
         except as expressly provided in the Agreement.

                  (4) The  Documents  and any proceeds  thereof,  including  any
         proceeds  of  proceeds,  coming into the  possession  or control of the
         Master  Servicer shall at all times be earmarked for the account of the
         Trust Administrator,  on behalf of the Trustee, and the Master Servicer
         shall keep the  Documents  and any proceeds  separate and distinct from
         all other  property  in the Master  Servicer's  possession,  custody or
         control.

                         NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION

                         By: --------------------------

                         Title: ------------------------

Date: ----------------, 19--


<PAGE>


                                    EXHIBIT H

                 AFFIDAVIT PURSUANT TO SECTION 860E(e)(4) OF THE
               INTERNAL REVENUE CODE OF 1986, AS AMENDED, AND FOR
                               NON-ERISA INVESTORS

STATE OF                 )
                         )ss:
COUNTY OF                )

     [NAME OF OFFICER], being first duly sworn, deposes and says:

     1. That he is [Title of Officer] of [Name of Purchaser] (the  "Purchaser"),
a [description  of type of entity] duly organized and existing under the laws of
the  [State of  ________]  [United  States],  on  behalf of which he makes  this
affidavit.

     2.  That the Purchaser's Taxpayer Identification Number is [             ].

     3. That the  Purchaser  is not a  "disqualified  organization"  within  the
meaning of Section  860E(e)(5),of  the Internal Revenue Code of 1986, as amended
(the "Code"),  or an ERISA  Prohibited  Holder,  and will not be a "disqualified
organization" or an ERISA Prohibited Holder, as of [date of transfer],  and that
the Purchaser is not acquiring  Norwest Asset  Securities  Corporation  Mortgage
Pass-Through  Certificates,  Series 1997-1,  Class [A-R][A-LR]  Certificate (the
"Class  [A-R][A-LR]  Certificate")  for the account of, or as agent (including a
broker, nominee, or other middleman) for, any person or entity from which it has
not received an affidavit substantially in the form of this affidavit. For these
purposes,  a "disqualified  organization"  means the United States, any state or
political  subdivision  thereof,  any  foreign  government,   any  international
organization,  any agency or instrumentality of any of the foregoing (other than
an instrumentality if all of its activities are subject to tax and a majority of
its  board of  directors  is not  selected  by such  governmental  entity),  any
cooperative  organization  furnishing  electric  energy or  providing  telephone
service to persons in rural areas as described in Code Section 1381(a)(2)(C), or
any organization  (other than a farmers'  cooperative  described in Code Section
521) that is exempt from  taxation  under the Code unless such  organization  is
subject to the tax on unrelated business income imposed by Code Section 511. For
these  purposes,  an "ERISA  Prohibited  Holder" means an employee  benefit plan
subject to the fiduciary  provisions of the Employee  Retirement Income Security
Act of 1974, as amended ("ERISA"),  and/or Code Section 4975 or any governmental
plan,  as defined in Section  3(32) of ERISA,  subject to any federal,  state or
local law which is, to a material extent, similar to the foregoing provisions of
ERISA or the Code  (collectively,  a "Plan") or a Person investing the assets of
such a Plan.

     4. That the Purchaser historically has paid its debts as they have come due
and  intends to pay its debts as they come due in the  future and the  Purchaser
intends to pay taxes associated with holding the Class  [A-R][A-LR]  Certificate
as they become due.

     5. That the Purchaser  understands  that it may incur tax liabilities  with
respect to the Class  [A-R][A-LR]  Certificate in excess of cash flows generated
by the Class [A-R][A-LR] Certificate.

     6. That the Purchaser will not transfer the Class  [A-R][A-LR]  Certificate
to any person or entity from which the  Purchaser  has not received an affidavit
substantially  in the form of this  affidavit  and as to which the Purchaser has
actual  knowledge that the  requirements set forth in paragraph 3, 4 or 7 hereof
are not  satisfied or that the Purchaser has reason to know does not satisfy the
requirements set forth in paragraph 4 hereof.

     7. That the  Purchaser  (i) is not a Non-U.S.  Person or (ii) is a Non-U.S.
Person  that holds the Class  [A-R][A-LR]  Certificate  in  connection  with the
conduct of a trade or business  within the United  States and has  furnished the
transferor  and the  Trust  Administrator  with an  effective  Internal  Revenue
Service  Form 4224 or successor  form at the time and in the manner  required by
the Code or (iii) is a Non-U.S. Person that has delivered to both the transferor
and the Trust Administrator an opinion of a nationally recognized tax counsel to
the effect that the transfer of the Class  [A-R][A-LR]  Certificate  to it is in
accordance with the  requirements  of the Code and the  regulations  promulgated
thereunder and that such transfer of the Class [A-R][A-LR]  Certificate will not
be  disregarded  for federal  income tax  purposes.  "Non-U.S.  Person" means an
individual,  corporation,  partnership  or other  person other than a citizen or
resident  of the United  States,  a  corporation,  partnership  or other  entity
created or organized in or under the laws of the United  States or any political
subdivision  thereof,  an estate  that is  subject  to U.S.  federal  income tax
regardless  of the  source  of its  income or a trust if (i) for  taxable  years
beginning  after December 31, 1996 (or after August 20, 1996, if the trustee has
made an  applicable  election),  a court  within  the  United  States is able to
exercise primary  supervision over the  administration of such trust, and one or
more United States  fiduciaries  have the  authority to control all  substantial
decisions  of such  trust or (ii) for all other  taxable  years,  such  trust is
subject to U.S. federal income tax regardless of the source of its income.

     8.  That  the  Purchaser  agrees  to such  amendments  of the  Pooling  and
Servicing Agreement as may be required to further effectuate the restrictions on
transfer  of  the  Class   [A-R][A-LR]   Certificate  to  such  a  "disqualified
organization,"  an agent thereof,  an ERISA  Prohibited  Holder or a person that
does not satisfy the  requirements  of paragraph 4,  paragraph 5 and paragraph 7
hereof.

     9. That the Purchaser consents to the designation of the Master Servicer as
its agent to act as "tax matters person" of the [Upper-Tier  REMIC]  [Lower-Tier
REMIC] pursuant to Section 3.01 of the Pooling and Servicing  Agreement,  and if
such  designation is not permitted by the Code and applicable law, to act as tax
matters person if requested to do so.


<PAGE>


     IN WITNESS WHEREOF, the Purchaser has caused this instrument to be executed
on its behalf, pursuant to authority of its Board of Directors, by its [Title of
Officer] this --- day of , 19 --.

                          [NAME OF PURCHASER]


                          By:--------------------------
                             [Name of Officer]
                             [Title of Officer]


     Personally  appeared before me the above-named [Name of Officer],  known or
proved to me to be the same person who executed the foregoing  instrument and to
be the [Title of Officer],  of the  Purchaser,  and  acknowledged  to me that he
[she] executed the same as his [her] free act and deed and the free act and deed
of the Purchaser.


     Subscribed and sworn before me this -- day of ----------, 19 --.


- -----------------------------
NOTARY PUBLIC

COUNTY OF--------------------

STATE OF---------------------

My commission expires the -- day of ----------, 19--.


<PAGE>


                                    EXHIBIT I




            [Letter from Transferor of Class [A-R][A-LR] Certificate]





                                     [Date]




First Union National Bank of North Carolina
230 South Tryon Street
Charlotte, North Carolina  28288

                  Re:      Norwest Asset Securities Corporation,
                           Series 1997-1, Class [A-R][A-LR]

Ladies and Gentlemen:
     [Transferor] has reviewed the attached  affidavit of [Transferee],  and has
no actual  knowledge  that such  affidavit is not true and has no reason to know
that the information contained in paragraph 4 thereof is not true.
                                          Very truly yours,
                                          [Transferor]

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


<PAGE>


                                    EXHIBIT J



                      NORWEST ASSET SECURITIES CORPORATION


                       MORTGAGE PASS-THROUGH CERTIFICATES
                                  SERIES 1997-1
                       CLASS [B-3][B-4][B-5] CERTIFICATES


                               TRANSFEREE'S LETTER



                                            ----------------- --, ----

First Union National Bank of North Carolina
230 South Tryon Street
Charlotte, North Carolina  28288


Norwest Asset Securities Corporation
5325 Spectrum Drive
Frederick, Maryland 21703

     The  undersigned  (the  "Purchaser")  proposes  to purchase  Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates,  Series 1997-1, Class
[B-3][B-4][B-5]  Certificates (the "Class [B-3][B-4][B-5]  Certificates") in the
principal amount of $-----------. In doing so, the Purchaser hereby acknowledges
and agrees as follows:

     Section 1. Definitions. Each capitalized term used herein and not otherwise
defined  herein  shall  have  the  meaning  ascribed  to it in the  Pooling  and
Servicing  Agreement,  dated as of January 30, 1997 (the  "Pooling and Servicing
Agreement") among Norwest Asset Securities  Corporation,  as seller  ("NASCOR"),
Norwest Bank Minnesota,  National  Association,  as master servicer (the "Master
Servicer"),  First Union National Bank of North Carolina, as trust administrator
(the  "Trust   Administrator")  and  Firstar  Trust  Company,  as  trustee  (the
"Trustee"),  of  Norwest  Asset  Securities  Corporation  Mortgage  Pass-Through
Certificates, Series 1997-1.

     Section 2.  Representations and Warranties of the Purchaser.  In connection
with the proposed transfer, the Purchaser represents and warrants to NASCOR, the
Master Servicer and the Trust Administrator that:

                  (a) The Purchaser is duly organized,  validly  existing and in
         good standing under the laws of the jurisdiction in which the Purchaser
         is  organized,  is  authorized  to invest in the Class  [B-3][B-4][B-5]
         Certificates,  and to enter into this Agreement,  and duly executed and
         delivered this Agreement.

                  (b) The  Purchaser  is  acquiring  the  Class  [B-3][B-4][B-5]
         Certificates  for its own account as  principal  and not with a view to
         the distribution thereof, in whole or in part.

                  [(c) The  Purchaser  has  knowledge of financial  and business
         matters  and is  capable  of  evaluating  the  merits  and  risks of an
         investment in the Class [B-3][B-4][B-5] Certificates; the Purchaser has
         sought  such  accounting,  legal and tax  advice  as it has  considered
         necessary to make an informed investment decision; and the Purchaser is
         able  to  bear  the  economic  risk  of  an  investment  in  the  Class
         [B-3][B-4][B-5]  Certificates  and can afford a  complete  loss of such
         investment.]

                    [(c) The  Purchaser  is a  "Qualified  Institutional  Buyer"
          within the meaning of Rule 144A of the Act.]

                  (d)  The  Purchaser  confirms  that  (a) it has  received  and
         reviewed a copy of the Private Placement  Memorandum dated October ---,
         1996, relating to the Class [B-3][B-4][B-5]  Certificates and reviewed,
         to the extent it deemed appropriate,  the documents attached thereto or
         incorporated  by reference  therein,  (b) it has had the opportunity to
         ask questions of, and receive answers from NASCOR  concerning the Class
         [B-3][B-4][B-5]  Certificates  and all matters  relating  thereto,  and
         obtain any additional information (including documents) relevant to its
         decision to purchase the Class [B-3][B-4][B-5] Certificates that NASCOR
         possesses or can possess without unreasonable effort or expense and (c)
         it has undertaken its own independent analysis of the investment in the
         Class  [B-3][B-4][B-5]  Certificates.  The  Purchaser  will  not use or
         disclose any information it receives in connection with its purchase of
         the Class [B-3][B-4][B-5]  Certificates other than in connection with a
         subsequent sale of Class [B-3][B-4][B-5] Certificates.

                  (e) [For Class B Certificates] Either (i) the Purchaser is not
         an  employee  benefit  plan  subject  to the  fiduciary  responsibility
         provisions of the Employee  Retirement  Income Security Act of 1974, as
         amended,  ("ERISA")  or Section  4975 of the  Internal  Revenue Code of
         1986, as amended (the "Code") or any  governmental  plan, as defined in
         Section  3(32) of ERISA  subject  to any  federal,  state or local  law
         ("Similar  Law")  which  is,  to a  material  extent,  similar  to  the
         foregoing provisions of ERISA or the Code (collectively,  a "Plan"), an
         agent acting on behalf of a Plan, or a person utilizing the assets of a
         Plan or (ii) if the  Purchaser is an insurance  company,  the source of
         funds used to purchase the Class B Certificate is an "insurance company
         general account" (as such term is defined in Section V(e) of Prohibited
         Transaction  Class  Exemption  95-60 ("PTE 95-60"),  60 Fed. Reg. 35925
         (July 12,  1995) and there is no Plan with  respect to which the amount
         of such general account's  reserves and liabilities for the contract(s)
         held by or on behalf of such Plan and all other Plans maintained by the
         same  employer (or affiliate  thereof as defined in Section  V(a)(1) of
         PTE  95-60) or by the same  employee  organization  exceeds  10% of the
         total of all reserves and  liabilities of such general account (as such
         amounts are determined  under Section I(a) of PTE 95-60) at the date of
         acquisition  or (iii) the  Purchaser  has provided (a) a "Benefit  Plan
         Opinion"  satisfactory  to NASCOR  and the Trust  Administrator  of the
         Trust  Estate  and  (b)  such  other  opinions  of  counsel,  officers'
         certificates  and agreements as NASCOR or the Master  Servicer may have
         required. A Benefit Plan Opinion is an opinion of counsel to the effect
         that the proposed  transfer  will not (a) cause the assets of the Trust
         Estate to be  regarded as "plan  assets"  and subject to the  fiduciary
         responsibility  provisions  of  ERISA  or  the  prohibited  transaction
         provisions  of the Code or Similar  Law,  (b) give rise to a  fiduciary
         duty under  ERISA,  Section 4975 of the Code or Similar Law on the part
         of NASCOR, the Master Servicer or the Trust  Administrator with respect
         to any Plan or (c) constitute a prohibited  transaction  under ERISA or
         Section 4975 of the Code or Similar Law.

                  (f) If the  Purchaser is a depository  institution  subject to
         the  jurisdiction  of the  Office of the  Comptroller  of the  Currency
         ("OCC"),  the Board of Governors of the Federal Reserve System ("FRB"),
         the  Federal  Deposit  Insurance  Corporation  ("FDIC"),  the Office of
         Thrift Supervision ("OTS") or the National Credit Union  Administration
         ("NCUA"),  the Purchaser has reviewed the "Supervisory Policy Statement
         on  Securities  Activities"  dated  January  28,  1992  of the  Federal
         Financial  Institutions  Examination  Council  and the April  15,  1994
         Interim Revision thereto as adopted by the OCC, FRB, FDIC, OTS and NCUA
         (with  modifications as applicable),  as appropriate,  other applicable
         investment  authority,  rules,  supervisory  policies and guidelines of
         these   agencies  and,  to  the  extent   appropriate,   state  banking
         authorities   and  has  concluded   that  its  purchase  of  the  Class
         [B-3][B-4][B-5] Certificates is in compliance therewith.

                  Section 3. Transfer of Class [B-3][B-4][B-5] Certificates.

                  (a) The Purchaser  understands that the Class  [B-3][B-4][B-5]
         Certificates  have not been registered under the Securities Act of 1933
         (the "Act") or any state  securities  laws and that no transfer  may be
         made unless the Class [B-3][B-4][B-5] Certificates are registered under
         the  Act  and  applicable   state  law  or  unless  an  exemption  from
         registration  is available.  The  Purchaser  further  understands  that
         neither  NASCOR,  the Master  Servicer nor the Trust  Administrator  is
         under any obligation to register the Class [B-3][B-4][B-5] Certificates
         or make an exemption available. In the event that such a transfer is to
         be made in reliance upon an exemption from the Act or applicable  state
         securities laws, (i) the Trust Administrator shall require, in order to
         assure   compliance  with  such  laws,  that  the   Certificateholder's
         prospective transferee certify to NASCOR and the Trust Administrator as
         to the factual basis for the  registration or  qualification  exemption
         relied  upon,   and  (ii)  unless  the   transferee   is  a  "Qualified
         Institutional  Buyer"  within the meaning of Rule 144A of the Act,  the
         Trust  Administrator  or NASCOR  may,  if such  transfer is made within
         three years from the later of (a) the Closing Date or (b) the last date
         on  which  NASCOR  or  any  affiliate  thereof  was  a  holder  of  the
         Certificates proposed to be transferred,  require an Opinion of Counsel
         that such  transfer may be made  pursuant to an exemption  from the Act
         and state  securities  laws,  which  Opinion of Counsel shall not be an
         expense of the Trust Administrator,  the Master Servicer or NASCOR. Any
         such Certificateholder desiring to effect such transfer shall, and does
         hereby agree to, indemnify the Trustee,  the Trust  Administrator,  the
         Master  Servicer,  any  Paying  Agent  acting  on  behalf  of the Trust
         Administrator  and NASCOR  against any liability that may result if the
         transfer  is not so  exempt  or is not  made in  accordance  with  such
         federal and state laws.

                  (b) No transfer of a Class  [B-3][B-4][B-5]  Certificate shall
         be  made  unless  the   transferee   provides   NASCOR  and  the  Trust
         Administrator with a Transferee's Letter,  substantially in the form of
         this Agreement.

                  (c) The Purchaser  acknowledges that its Class [B-3][B-4][B-5]
         Certificates bear a legend setting forth the applicable restrictions on
         transfer.


<PAGE>


     IN WITNESS WHEREOF, the undersigned has caused this Agreement to be validly
executed by its duly authorized  representative as of the day and the year first
above written.

                                    [PURCHASER]



                                    By:  ------------------------------

                                    Its:  ------------------------------


<PAGE>


                                    EXHIBIT K




                      NORWEST ASSET SECURITIES CORPORATION


                       MORTGAGE PASS-THROUGH CERTIFICATES
                                  SERIES 1997-1
                       CLASS [M] [B-1] [B-2] CERTIFICATES


                               TRANSFEREE'S LETTER




                                          ---------------- --, ----

First Union National Bank of North Carolina
230 South Tryon Street
Charlotte, North Carolina  28288


Norwest Asset Securities Corporation
5325 Spectrum Drive
Frederick, Maryland 21703

     The  undersigned  (the  "Purchaser")  proposes  to purchase  Norwest  Asset
Securities Corporation Mortgage Pass-Through Certificates,  Series 1997-1, Class
[M] [B-1] [B-2]  Certificates (the "Class [M] [B-1] [B-2]  Certificates") in the
principal amount of $-----------. In doing so, the Purchaser hereby acknowledges
and agrees as follows:

     Section 1. Definitions. Each capitalized term used herein and not otherwise
defined  herein  shall  have  the  meaning  ascribed  to it in the  Pooling  and
Servicing  Agreement,  dated as of January 30, 1997 (the  "Pooling and Servicing
Agreement") among Norwest Asset Securities  Corporation,  as seller  ("NASCOR"),
Norwest Bank Minnesota,  National  Association,  as master servicer (the "Master
Servicer"),  First Union National Bank of North Carolina, as trust administrator
(the  "Trust  Administrator"),  and  Firstar  Trust  Company,  as  trustee  (the
"Trustee")  of  Norwest  Asset  Securities   Corporation  Mortgage  Pass-Through
Certificates, Series 1997-1.

     Section 2.  Representations and Warranties of the Purchaser.  In connection
with the proposed transfer, the Purchaser represents and warrants to the NASCOR,
the Master Servicer and the Trust Administrator that:

                  Either  (i) the  Purchaser  is not an  employee  benefit  plan
         subject to the  fiduciary  responsibility  provisions  of the  Employee
         Retirement  Income  Security  Act of 1974,  as  amended,  ("ERISA")  or
         Section  4975 of the  Internal  Revenue  Code of 1986,  as amended (the
         "Code") or any governmental  plan, as defined in Section 3(32) of ERISA
         subject to any federal, state or local law ("Similar Law") which is, to
         a material extent,  similar to the foregoing provisions of ERISA or the
         Code (collectively,  a "Plan"), an agent acting on behalf of a Plan, or
         a person  utilizing the assets of a Plan or (ii) if the Purchaser is an
         insurance  company,  the source of funds used to purchase the Class [M]
         [B-1] [B-2]  Certificate is an "insurance  company general account" (as
         such term is defined in Section V(e) of  Prohibited  Transaction  Class
         Exemption  95-60 ("PTE 95-60"),  60 Fed. Reg. 35925 (July 12, 1995) and
         there is no Plan  with  respect  to which the  amount  of such  general
         account's  reserves and liabilities  for the contract(s)  held by or on
         behalf of such Plan and all other Plans maintained by the same employer
         (or affiliate thereof as defined in Section V(a)(1) of PTE 95-60) or by
         the same employee organization, exceed 10% of the total of all reserves
         and liabilities of such general account (as such amounts are determined
         under  Section I(a) of PTE 95-60) at the date of  acquisition  or (iii)
         the Purchaser has provided (a) a "Benefit Plan Opinion" satisfactory to
         NASCOR and the Trustee of the Trust Estate and (b) such other  opinions
         of counsel,  officers'  certificates  and  agreements  as NASCOR or the
         Master Servicer may have required. A Benefit Plan Opinion is an opinion
         of counsel to the effect that the proposed  transfer will not (a) cause
         the assets of the Trust  Estate to be  regarded  as "plan  assets"  and
         subject  to the  fiduciary  responsibility  provisions  of ERISA or the
         prohibited  transaction provisions of the Code or Similar Law, (b) give
         rise to a  fiduciary  duty  under  ERISA,  Section  4975 of the Code or
         Similar  Law on the part of  NASCOR,  the  Master  Servicer,  the Trust
         Administrator or the Trustee with respect to any Plan or (c) constitute
         a  prohibited  transaction  under ERISA or Section  4975 of the Code or
         Similar Law.

         IN WITNESS  WHEREOF,  the  undersigned  has caused this Agreement to be
validly  executed by its duly  authorized  representative  as of the day and the
year first above written.

                                      [PURCHASER]



                                      By:  -----------------------------

                                      Its: -----------------------------

                                      [Reserved]


<PAGE>


                                    EXHIBIT L


                   Citicorp Mortgage, Inc. Servicing Agreement

                Countrywide Home Loans, Inc. Servicing Agreement

              First Union Mortgage Corporation Servicing Agreement

                      HomeSide Lending Servicing Agreement

                   Suntrust Mortgage, Inc. Servicing Agreement

               National City Mortgage Company Servicing Agreement

               First Bank National Association Servicing Agreement

                   Norwest Mortgage, Inc. Servicing Agreement


<PAGE>


                                    EXHIBIT M
                      [FORM OF SPECIAL SERVICING AGREEMENT]

                 SPECIAL SERVICING AND COLLATERAL FUND AGREEMENT

     This SPECIAL  SERVICING AND COLLATERAL FUND AGREEMENT (the  "Agreement") is
made and entered  into as of  -------------,  between  Norwest  Bank  Minnesota,
National Association (the "Company" and "Norwest Bank") and --------------------
(the "Purchaser").

                              PRELIMINARY STATEMENT

     -----------------------  is the  holder of the entire  interest  in Norwest
Asset Securities Corporation Mortgage Pass-Through Certificates,  Series 1997-1,
Class ---- (the "Class B  Certificates").  The Class B Certificates  were issued
pursuant to a Pooling and Servicing Agreement dated as of January 30, 1997 among
Norwest  Asset  Securities  Corporation,  as  Seller  ("NASCOR"),  Norwest  Bank
Minnesota,  National Association,  as Master Servicer, First Union National Bank
of North Carolina, as Trust Administrator and Firstar Trust Company, as Trustee.

     ------------------------  intends to resell all of the Class B Certificates
directly to the Purchaser on or promptly after the date hereof.

     In  connection  with such sale,  the  parties  hereto  have agreed that the
Company will cause, to the extent that the Company as Master Servicer is granted
such authority in the related Servicing Agreements,  the related servicers (each
a related "Servicer"), which service the Mortgage Loans which comprise the Trust
Estate  related  to the above  referenced  series  under the  related  servicing
agreements (each a related "Servicing Agreement"),  to engage in certain special
servicing  procedures relating to foreclosures for the benefit of the Purchaser,
and that the  Purchaser  will deposit  funds in a  collateral  fund to cover any
losses  attributable  to such  procedures  as well as all  advances and costs in
connection therewith, as set forth herein.

     In consideration of the mutual agreements herein contained, the receipt and
sufficiency  of which are hereby  acknowledged,  the Company  and the  Purchaser
agree that the following  provisions shall become effective and shall be binding
on and enforceable by the Company and the Purchaser:


                                    ARTICLE I

                                   DEFINITIONS

     Section 1.01 Defined Terms

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

     Business  Day:  Any day other than (i) a Saturday or a Sunday or (ii) a day
on  which  banking  institutions  in the  State  of New  York  are  required  or
authorized by law or executive order to be closed.

     Collateral  Fund: The fund  established and maintained  pursuant to Section
3.01 hereof.

     Collateral  Fund  Permitted  Investments:  Either  (i)  obligations  of, or
obligations fully guaranteed as to principal and interest by, the United States,
or any agency or instrumentality  thereof,  provided such obligations are backed
by the full faith and  credit of the United  States,  (ii) a money  market  fund
rated in the highest rating  category by a nationally  recognized  rating agency
selected by the Company,  (iii) cash,  (iv) mortgage  pass-through  certificates
issued or guaranteed by Government National Mortgage Association, FNMA or FHLMC,
(v) commercial paper (including both  non-interest-bearing  discount obligations
and interest-bearing  obligations payable on demand or on a specified date), the
issuer of which may be an affiliate  of the Company,  having at the time of such
investment a rating of at least A-1 by Standard  and Poor's  ("S&P") or at least
P-1 by Moody's  Investors  Service,  Inc.  ("Moody's")  or (vi)  demand and time
deposits in,  certificates  of deposit of, any  depository  institution or trust
company (which may be an affiliate of the Company)  incorporated  under the laws
of the United States of America or any state thereof and subject to  supervision
and examination by federal and/or state banking  authorities,  so long as at the
time of such  investment  either  (x) the  long-term  debt  obligations  of such
depository institution or trust company have a rating of at least Aa2 by Moody's
or AA by S&P, (y) the certificate of deposit or other unsecured  short-term debt
obligations of such depository  institution or trust company have a rating of at
least P-1 by Moody's or A-1 by S&P or (z) the  depository  institution  or trust
company is one that is acceptable to either  Moody's or S&P and, for each of the
preceding  clauses (i), (iv),  (v) and (vi),  the maturity  thereof shall be not
later  than the  earlier  to occur of (A) 30 days  from the date of the  related
investment  and (B) the next  succeeding  Distribution  Date as  defined  in the
related Pooling and Servicing Agreement.

     Commencement of Foreclosure: The first official action required under local
law in order to commence foreclosure proceedings or to schedule a trustee's sale
under a deed of trust,  including  (i) in the case of a mortgage,  any filing or
service of process necessary to commence an action to foreclose,  or (ii) in the
case of a deed of trust, posting, the publishing, filing or delivery of a notice
of sale,  but not including in either case (x) any notice of default,  notice of
intent to  foreclose  or sell or any other  action  prerequisite  to the actions
specified  in (i) or  (ii)  above,  (y)  the  acceptance  of a  deed-in-lieu  of
foreclosure  (whether  in  connection  with a sale of the  related  property  or
otherwise) or (z) initiation and completion of a short pay-off.

     Current  Appraisal:  With  respect  to any  Mortgage  Loan as to which  the
Purchaser has made an Election to Delay Foreclosure, an appraisal of the related
Mortgaged  Property  obtained  by the  Purchaser  at its  own  expense  from  an
independent  appraiser  (which  shall  not be an  affiliate  of  the  Purchaser)
acceptable to the Company as nearly contemporaneously as practicable to the time
of  the  Purchaser's  election,   prepared  based  on  the  Company's  customary
requirements for such appraisals.

     Election to Delay  Foreclosure:  Any election by the Purchaser to delay the
Commencement of Foreclosure, made in accordance with Section 2.02(b).

     Election to  Foreclose:  Any election by the  Purchaser to proceed with the
Commencement of Foreclosure, made in accordance with Section 2.03(a).

     Monthly Advances:  Principal and interest  advances and servicing  advances
including costs and expenses of foreclosure.

     Required  Collateral  Fund  Balance:  As of any date of  determination,  an
amount equal to the aggregate of all amounts previously required to be deposited
in the Collateral  Fund pursuant to Section  2.02(d)  (after  adjustment for all
withdrawals and deposits pursuant to Section 2.02(e)) and Section 2.03(b) (after
adjustment for all  withdrawals  and deposits  pursuant to Section  2.02(e)) and
Section  3.02 to be reduced by all  withdrawals  therefrom  pursuant  to Section
2.02(g) and Section 2.03(d).

     Section 1.02 Definitions Incorporated by Reference

     All  capitalized  terms not otherwise  defined in this Agreement shall have
the meanings assigned in the Pooling and Servicing Agreement.


                                   ARTICLE II

                          SPECIAL SERVICING PROCEDURES

     Section 2.01 Reports and Notices

     (a) In connection  with the performance of its duties under the Pooling and
Servicing  Agreement  relating to the realization upon defaulted Mortgage Loans,
the Company as Master  Servicer  shall  provide to the  Purchaser  the following
notices and reports:

                    (i) Within five Business Days after each  Distribution  Date
          (or included in or with the monthly  statements to  Certificateholders
          pursuant to the Pooling and Servicing Agreement),  the Company,  shall
          provide to the  Purchaser  a report,  using the same  methodology  and
          calculations  in its standard  servicing  reports,  indicating for the
          Trust  Estate the number of Mortgage  Loans that are (A) thirty  days,
          (B)  sixty  days,  (C)  ninety  days  or  more  delinquent  or  (D) in
          foreclosure,  and  indicating  for each  such  Mortgage  Loan the loan
          number and outstanding principal balance.

                    (ii) Prior to the  Commencement of Foreclosure in connection
          with any Mortgage  Loan,  the Company shall cause,  to the extent that
          the  Company as Master  Servicer  is  granted  such  authority  in the
          related  Servicing  Agreement,  the  related  Servicer  to provide the
          Purchaser  with a notice  (sent by  telecopier)  of such  proposed and
          imminent foreclosure, stating the loan number and the aggregate amount
          owing  under the  Mortgage  Loan.  Such  notice may be provided to the
          Purchaser  in the  form  of a copy  of a  referral  letter  from  such
          Servicer to an attorney requesting the institution of foreclosure.

     (b) If requested by the Purchaser,  the Company shall cause,  to the extent
that the Company as Master  Servicer is granted  such  authority  in the related
Servicing  Agreement,  the  related  Servicer  to make its  servicing  personnel
available  (during  their  normal  business  hours)  to  respond  to  reasonable
inquiries,  by phone or in writing by facsimile,  electronic,  or overnight mail
transmission,  by the Purchaser in connection  with any Mortgage Loan identified
in a report under  subsection (a) (i) (B), (a) (i) (C), (a) (i) (D), or (a) (ii)
which has been given to the Purchaser;  provided,  that (1) the related Servicer
shall only be required to provide  information that is readily accessible to its
servicing personnel and is  non-confidential  and (2) the related Servicer shall
respond   within  five   Business   Days  orally  or  in  writing  by  facsimile
transmission.

     (c) In addition to the  foregoing,  the Company shall cause,  to the extent
that the Company as Master  Servicer is granted  such  authority  in the related
Servicing  Agreement,  the  related  Servicer to provide to the  Purchaser  such
information as the Purchaser may reasonably request provided, however, that such
information  is consistent  with normal  reporting  practices,  concerning  each
Mortgage  Loan that is at least ninety days  delinquent  and each  Mortgage Loan
which has become  real estate  owned,  through  the final  liquidation  thereof;
provided,   that  the  related  Servicer  shall  only  be  required  to  provide
information  that  is  readily  accessible  to its  servicing  personnel  and is
non-confidential  provided,  however,  that the  Purchaser  will  reimburse  the
Company and the related Servicer for any out of pocket expenses.

     Section 2.02 Purchaser's Election to Delay Foreclosure Proceedings

     (a) The  Purchaser  shall be deemed to direct the  Company to cause (to the
extent that the  Company as Master  Servicer is granted  such  authority  in the
related  Servicing  Agreement)  the related  Servicer that in the event that the
Company does not receive written notice of the Purchaser's  election pursuant to
subsection (b) below within 24 hours (exclusive of any intervening  non-Business
Days) of  transmission  of the notice provided by the Company under Section 2.01
(a) (ii)  subject to  extension  as set forth in Section  2.02(b),  the  related
Servicer may proceed with the  Commencement  of  Foreclosure  in respect of such
Mortgage Loan in accordance with its normal foreclosure policies without further
notice  to the  Purchaser.  Any  foreclosure  that  has  been  initiated  may be
discontinued  (i) without  notice to the Purchaser if the Mortgage Loan has been
brought  current or if a refinancing  or  prepayment  occurs with respect to the
Mortgage  Loan  (including  by means of a short  payoff  approved by the related
Servicer) or (ii) if the related Servicer has reached the terms of a forbearance
agreement  with the  borrower.  In such latter  case,  the related  Servicer may
complete such forbearance agreement unless instructed otherwise by the Purchaser
within two Business Days notification.

     (b) In  connection  with any  Mortgage  Loan with respect to which a notice
under Section  2.01(a)(ii)  has been given to the  Purchaser,  the Purchaser may
elect to instruct the Company to cause, to the extent that the Company as Master
Servicer is granted  such  authority  in the related  Servicing  Agreement,  the
related Servicer to delay the Commencement of Foreclosure until such time as the
Purchaser determines that the related Servicer may proceed with the Commencement
of  Foreclosure.  Such  election  must be evidenced by written  notice  received
within 24 hours (exclusive of any intervening non-Business Days) of transmission
of the notice  provided by the Company under Section  2.01(a)(ii).  Such 24 hour
period shall be extended for no longer than an  additional  four  Business  Days
after the  receipt  of the  information  if the  Purchaser  requests  additional
information related to such foreclosure;  provided,  however, that the Purchaser
will have at least one  Business  Day to  respond  to any  requested  additional
information.  Any such additional  information shall (i) be provided only to the
extent it is not  confidential  in nature and (ii) be  obtainable by the related
Servicer  from  existing  reports,  certificates  or  statements or otherwise be
readily accessible to its servicing personnel.  The Purchaser agrees that it has
no right  to deal  with the  mortgagor  during  such  period.  However,  if such
servicing  activities  include  acceptance of a  deed-in-lieu  of foreclosure or
short  payoff,  the  Purchaser  will be notified and given two Business  Days to
respond.

     (c) With respect to any Mortgage Loan as to which the Purchaser has made an
Election to Delay Foreclosure, the Purchaser shall obtain a Current Appraisal as
soon as practicable,  but in no event more than 15 business days thereafter, and
shall provide the Company with a copy of such Current Appraisal.

     (d) Within two Business  Days of making any Election to Delay  Foreclosure,
the Purchaser  shall remit by wire  transfer to the Company,  for deposit in the
Collateral  Fund, an amount,  as calculated by the Company,  equal to the sum of
(i) 125% of the greater of the unpaid principal balance of the Mortgage Loan and
the value shown in the Current  Appraisal  referred to in  subsection  (c) above
(or, if such Current Appraisal has not yet been obtained, the Company's estimate
thereof,  in which case the  required  deposit  under this  subsection  shall be
adjusted upon obtaining such Current Appraisal), and (ii) three months' interest
on the Mortgage Loan at the applicable  Mortgage  Interest Rate. If any Election
to Delay Foreclosure extends for a period in excess of three months (such excess
period  being  referred to herein as the "Excess  Period"),  within two Business
Days the  Purchaser  shall remit by wire  transfer in advance to the Company for
deposit in the Collateral Fund the amount of each additional  month's  interest,
as  calculated  by the Company,  equal to interest on the  Mortgage  Loan at the
applicable  Mortgage  Interest  Rate for the  Excess  Period.  The terms of this
Agreement  will no longer apply to the  servicing of any Mortgage  Loan upon the
failure of the  Purchaser  to deposit any of the above  amounts  relating to the
Mortgage Loan within two Business Days of the Election to Delay  Foreclosure  or
within two Business Days of the  commencement  of the Excess  Period  subject to
Section 3.01.

     (e) With respect to any Mortgage Loan as to which the Purchaser has made an
Election to Delay Foreclosure, the Company may withdraw from the Collateral Fund
from time to time amounts  necessary to reimburse  the related  Servicer for all
related  Monthly  Advances  and  Liquidation  Expenses  thereafter  made by such
Servicer in accordance with the Pooling and Servicing  Agreement and the related
Servicing  Agreement.  To the  extent  that the  amount of any such  Liquidation
Expenses is determined by the Company based on estimated  costs,  and the actual
costs are  subsequently  determined  to be higher,  the Company may withdraw the
additional  amount from the Collateral Fund. In the event that the Mortgage Loan
is brought current by the mortgagor and the foreclosure  action is discontinued,
the amounts so withdrawn from the Collateral  Fund shall be redeposited  therein
and to the extent that reimbursement therefor from amounts paid by the mortgagor
is not prohibited pursuant to the Pooling and Servicing Agreement or the related
Servicing  Agreement  as of the  date  hereof,  applicable  law  or the  related
mortgage note. Except as provided in the preceding  sentence,  amounts withdrawn
from the  Collateral  Fund to cover Monthly  Advances and  Liquidation  Expenses
shall not be redeposited  therein or otherwise  reimbursed to the Purchaser.  If
and when any such Mortgage Loan is brought current by the mortgagor, all amounts
remaining  in the  Collateral  Fund in  respect  of such  Mortgage  Loan  (after
adjustment  for  all  permitted   withdrawals  and  deposits  pursuant  to  this
subsection) shall be released to the Purchaser.

     (f) With respect to any Mortgage Loan as to which the Purchaser has made an
Election to Delay  Foreclosure,  the related  Servicer shall continue to service
the Mortgage Loan in accordance  with its customary  procedures  (other than the
delay in  Commencement  of  Foreclosure  as  provided  herein).  If and when the
Purchaser shall notify the Company that it believes that it is appropriate to do
so, the related  Servicer may proceed with the  Commencement of Foreclosure.  In
any event,  if the Mortgage Loan is not brought  current by the mortgagor by the
time the loan becomes 6 months  delinquent,  the  Purchaser's  election shall no
longer be effective  and at the  Purchaser's  option,  either (I) the  Purchaser
shall  purchase  the Mortgage  Loan from the related  Trust Estate at a purchase
price equal to the fair market  value as shown on the Current  Appraisal,  to be
paid by (x) applying any balance in the Collateral Fund to such to such purchase
price, and (y) to the extent of any deficiency,  by wire transfer if immediately
available  funds from the  Purchaser  to the  Company for deposit in the related
Certificate Account or Lower-Tier Certificate Account as applicable; or (ii) the
related Servicer may proceed with the Commencement of Foreclosure.

     (g) Upon the occurrence of a liquidation  with respect to any Mortgage Loan
as to which the Purchaser made an Election to Delay  Foreclosure and as to which
the  related  Servicer   proceeded  with  the  Commencement  of  Foreclosure  in
accordance with subsection (f) above, the Company shall calculate the amount, if
any, by which the value shown on the Current Appraisal obtained under subsection
(c) exceeds the actual sales price obtained for the related  Mortgaged  Property
(net of  Liquidation  Expenses  and  accrued  interest  related to the  extended
foreclosure  period),  and the Company shall  withdraw the amount of such excess
from the  Collateral  Fund,  shall remit the same to the Trust Estate and in its
capacity as Master  Servicer  shall apply such amount as additional  Liquidation
Proceeds  pursuant to the Pooling and  Servicing  Agreement.  After  making such
withdrawal,  all amounts  remaining  in the  Collateral  Fund in respect of such
Mortgage  Loan (after  adjustment  for all  permitted  withdrawals  and deposits
pursuant to this Agreement) shall be released to the Purchaser.

     Section 2.03 Purchaser's Election to Commence Foreclosure Proceedings

          (a) In connection  with any Mortgage Loan identified in a report under
Section 2.01(a)(i)(B), the Purchaser may elect to instruct the Company to cause,
to the extent that the Company as Master  Servicer is granted such  authority in
the  related  Servicing  Agreement,  the related  Servicer  to proceed  with the
Commencement  of  Foreclosure  as soon as  practicable.  Such  election  must be
evidenced by written notice  received by the Company by 5:00 p.m., New York City
time,  on the third  Business  Day  following  the delivery of such report under
Section 2.01(a)(i).

          (b) Within two Business Days of making any Election to Foreclose,  the
Purchaser  shall remit to the Company,  for deposit in the  Collateral  Fund, an
amount,  as  calculated  by the  Company,  equal to 125% of the  current  unpaid
principal balance of the Mortgage Loan and three months interest on the Mortgage
Loan at the  applicable  Mortgage  Interest  Rate. If and when any such Mortgage
Loan is brought current by the mortgagor,  all amounts in the Collateral Fund in
respect of such Mortgage Loan (after  adjustment  for all permitted  withdrawals
and deposits  pursuant to this Agreement) shall be released to the Purchaser and
to the extent that reimbursement  therefor from amounts paid by the mortgagor is
not  prohibited  pursuant to the Pooling and Servicing  Agreement or the related
Servicing  Agreement  as of the  date  hereof,  applicable  law  or the  related
mortgage note. The terms of this Agreement will no longer apply to the servicing
of any  Mortgage  Loan upon the  failure of the  Purchaser  to deposit the above
amounts  relating to the Mortgage  Loan within two Business Days of the Election
to Foreclose subject to Section 3.01.

          (c) With respect to any Mortgage  Loan as to which the  Purchaser  has
made an Election to Foreclose,  the related  Servicer  shall continue to service
the  Mortgage  Loan in  accordance  with its  customary  procedures  (other than
Commencement of Foreclosure as provided herein).  In connection  therewith,  the
Company shall have the same rights to make  withdrawals for Monthly Advances and
Liquidations  Expenses from the  Collateral  Fund as are provided  under Section
2.02(e), and the Company shall make reimbursements thereto to the limited extent
provided under such subsection in accordance with its customary procedures.  The
Company shall not be required to cause, to the extent that the Company as Master
Servicer is granted  such  authority  in the related  Servicing  Agreement,  the
related Servicer to proceed with the Commencement of Foreclosure if (i) the same
is stayed as a result of the  mortgagor's  bankruptcy or is otherwise  barred by
applicable  law, or to the extent that all legal  conditions  precedent  thereto
have not yet been complied with, or (ii) the Company  believes there is a breach
of representations or warranties by the Company, a Servicer,  or a Seller, which
may result in a repurchase or  substitution  of such Mortgage Loan, or (iii) the
Company or related Servicer  reasonably  believes the Mortgaged  Property may be
contaminated with or affected by hazardous wastes or hazardous  substances (and,
without  limiting  the  related   Servicer's  right  not  to  proceed  with  the
Commencement of Foreclosure, the Company supplies the Purchaser with information
supporting  such  belief).  Any  foreclosure  that  has  been  initiated  may be
discontinued  (x) without  notice to the Purchaser if the Mortgage Loan has been
brought  current or if a refinancing  or  prepayment  occurs with respect to the
Mortgage Loan  (including by means of a short payoff  approved by the Purchaser)
or (y) with  notice to the  Purchaser  if the related  Servicer  has reached the
terms of a forbearance  agreement unless  instructed  otherwise by the Purchaser
within two Business Days of such  notification.  Any such  instruction  shall be
based upon a decision that such forbearance  agreement is not in conformity with
reasonable servicing practices.

          (d) Upon the occurrence of a liquidation  with respect to any Mortgage
Loan as to which the Purchaser made an Election to Foreclose and as to which the
related  Servicer  proceeded with the  Commencement of Foreclosure in accordance
with subsection (c) above,  the Company shall  calculate the amount,  if any, by
which  the  unpaid  principal  balance  of the  Mortgage  Loan  at the  time  of
liquidation  (plus  all  unreimbursed   interest  and  servicing   advances  and
Liquidation  Expenses  in  connection  therewith  other than those paid from the
Collateral  Fund)  exceeds  the actual  sales  price  obtained  for the  related
Mortgaged  Property,  and the Company  shall  withdraw the amount of such excess
from the  Collateral  Fund,  shall remit the same to the Trust Estate and in its
capacity as Master  Servicer  shall apply such amount as additional  Liquidation
Proceeds  pursuant to the Pooling and  Servicing  Agreement.  After  making such
withdrawal,  all amounts  remaining in the Collateral Fund (after adjustment for
all  withdrawals  and  deposits  pursuant to  subsection  (c) in respect of such
Mortgage Loan shall be released to the Purchaser.

     Section 2.04 Termination

          (a) With respect to all Mortgage  Loans  included in the Trust Estate,
the Purchaser's  right to make any Election to Delay Foreclosure or any Election
to Foreclose and the Company's  obligations  under Section 2.01 shall  terminate
(i) at such time as the Principal  Balance of the Class B Certificates  has been
reduced  to  zero,  (ii) if the  greater  of (x) 43% (or such  lower  or  higher
percentage  that  represents  the  related  Servicer's  actual  historical  loss
experience  with respect to the Mortgage Loans in the related pool as determined
by the Company) of the aggregate  principal  balance of all Mortgage  Loans that
are in  foreclosure or are more than 90 days  delinquent on a contractual  basis
and REO  properties  or (y) the  aggregate  amount  that the  Company  estimates
through the normal servicing  practices of the related Servicer will be required
to be withdrawn  from the  Collateral  Fund with respect to Mortgage Loans as to
which the Purchaser has made an Election to Delay  Foreclosure or an Election to
Foreclosure,  exceeds  (z) the  then-current  principal  balance  of the Class B
Certificates,  (iii) upon any transfer by the  Purchaser of any interest  (other
than the minority interest therein,  but only if the transferee provides written
acknowledgment  to the Company of the Purchaser's  right hereunder and that such
transferee will have no rights  hereunder) in the Class B Certificates  (whether
or not such transfer is registered  under the Pooling and Servicing  Agreement),
including any such transfer in connection with a termination of the Trust Estate
or (iv) any breach of the terms of this Agreement by the Purchaser.

          (b) Except as set forth in 2.04(a),  this Agreement and the respective
rights,  obligations  and  responsibilities  of the  Purchaser  and the  Company
hereunder shall  terminate upon the later to occur of (i) the final  liquidation
of the last Mortgage  Loan as to which the Purchaser  made any Election to Delay
Foreclosure  or any Election to Foreclose  and the  withdrawal  of all remaining
amounts in the  Collateral  Fund as provided  herein and (ii) ten Business Days'
notice.  The Purchaser's  right to make an election  pursuant to Section 2.02 or
Section 2.03 hereof with respect to a particular  Mortgage Loan shall  terminate
if the Purchaser fails to make any deposit required  pursuant to Section 2.02(d)
or 2.03(b) or if the Purchaser fails to make any other deposit to the Collateral
Fund pursuant to this Agreement.


                                   ARTICLE III

                       COLLATERAL FUND; SECURITY INTEREST

     Section 3.01. Collateral Fund

     Upon  receipt  from the  Purchaser  of the  initial  amount  required to be
deposited  in the  Collateral  Fund  pursuant to Article  II, the Company  shall
establish and maintain with Bankers Trust Company as a segregated account on its
books and records an account (the  "Collateral  Fund"),  entitled  "Norwest Bank
Minnesota,  National  Association,  as  Master  Servicer,  for  the  benefit  of
registered holders of Norwest Asset Securities Corporation Mortgage Pass-Through
Certificates,  Series 1997-1. Amounts held in the Collateral Fund shall continue
to be the  property of the  Purchaser,  subject to the first  priority  security
interest  granted  hereunder  for the benefit of the  Certificateholders,  until
withdrawn from the Collateral Fund pursuant to Section 2.02 or 2.03 hereof.  The
Collateral  Fund shall be an "outside  reserve  fund"  within the meaning of the
REMIC  Provisions,  beneficially  owned by the Purchaser for federal  income tax
purposes.  All income,  gain,  deduction or loss with respect to the  Collateral
Fund shall be that of the Purchaser.  All  distributions  from the Trust Fund to
the  Collateral  Fund shall be treated as  distributed  to the  Purchaser as the
beneficial owner thereof.

     Upon the  termination of this Agreement and the liquidation of all Mortgage
Loans as to which the  Purchaser has made any Election to Delay  Foreclosure  or
any Election to Foreclose  pursuant to Section  2.04 hereof,  the Company  shall
distribute to the Purchaser all amounts  remaining in the Collateral Fund (after
adjustment  for  all  deposits  and  permitted   withdrawals  pursuant  to  this
Agreement)  together  with any  investment  earnings  thereon.  In the event the
Purchaser  has made  any  Election  to  Delay  Foreclosure  or any  Election  to
Foreclose,  prior to any distribution to the Purchaser of all amounts  remaining
in the Collateral Fund, funds in the Collateral Fund shall be applied consistent
with the terms of this Agreement.

     Section 3.02. Collateral Fund Permitted Investments.

     The Company shall,  at the written  direction of the Purchaser,  invest the
funds in the  Collateral  Fund in Collateral  Fund Permitted  Investments.  Such
direction shall not be changed more frequently than quarterly. In the absence of
any direction,  the Company shall select such investments in accordance with the
definition of Collateral Fund Permitted Investments in its discretion.

     All income and gain  realized  from any  investment as well as any interest
earned  on  deposits  in  the  Collateral  Fund  (net  of  any  losses  on  such
investments)  and any  payments of principal  made in respect of any  Collateral
Fund  Permitted  Investment  shall be  deposited  in the  Collateral  Fund  upon
receipt.  All costs and realized losses associated with the purchase and sale of
Collateral  Fund Permitted  Investments  shall be borne by the Purchaser and the
amount  of net  realized  losses  shall be  deposited  by the  Purchaser  in the
Collateral Fund promptly upon realization.  The Company shall  periodically (but
not more  frequently  than monthly)  distribute to the Purchaser upon request an
amount of cash,  to the extent cash is  available  therefore  in the  Collateral
Fund,  equal to the amount by which the balance of the  Collateral  Fund,  after
giving effect to all other  distributions to be made from the Collateral Fund on
such  date,  exceeds  the  Required  Collateral  Fund  Balance.  Any  amounts so
distributed  shall be  released  from the lien  and  security  interest  of this
Agreement.

     Section 3.03. Grant of Security Interest

     The  Purchaser  hereby  grants  to  the  Company  for  the  benefit  of the
Certificateholders under the Pooling and Servicing Agreement a security interest
in and lien on all of the  Purchaser's  right,  title and interest,  whether now
owned or hereafter acquired, in and to: (1) the Collateral Fund, (2) all amounts
deposited in the Collateral  Fund and Collateral  Fund Permitted  Investments in
which such  amounts are  invested  (and the  distributions  and proceeds of such
investments)  and (3) all cash and  non-cash  proceeds of any of the  foregoing,
including  proceeds of the  voluntary  conversion  thereof (all of the foregoing
collectively, the "Collateral").

     The  Purchaser  acknowledges  the  lien  on the  security  interest  in the
Collateral for the benefit of the  Certificateholders.  The Purchaser shall take
all actions  requested by the Company as may be reasonably  necessary to perfect
the security  interest  created under this Agreement in the Collateral and cause
it to be  prior  to all  other  security  interests  and  liens,  including  the
execution  and  delivery  to the  Company  for filing of  appropriate  financing
statements in accordance with applicable law. The Company shall file appropriate
continuation  statements,  or  appoint  an  agent  on its  behalf  to file  such
statements, in accordance with applicable law.

     Section 3.04. Collateral Shortfalls.

     In the event that amounts on deposit in the Collateral Fund at any time are
insufficient  to  cover  any  withdrawals  therefrom  that the  Company  is then
entitled to make hereunder, the Purchaser shall be obligated to pay such amounts
to the Company  immediately  upon demand.  Such  obligation  shall  constitute a
general corporate  obligation of the Purchaser.  The failure to pay such amounts
within two Business Days of such demand (except for amounts to cover interest on
a Mortgage  Loan  pursuant  to Sections  2.02(d)  and 2.03 (b)),  shall cause an
immediate  termination  of the  Purchaser's  right to make any Election to Delay
Foreclosure  or Election to Foreclose and the Company's  obligations  under this
Agreement  with  respect to all  Mortgage  Loans to which  such  insufficiencies
relate, without the necessity of any further notice or demand on the part of the
Company.



                                   ARTICLE IV

                            MISCELLANEOUS PROVISIONS


     Section 4.01. Amendment.

     This  Agreement  may be amended  from time to time by the  Company  and the
Purchaser by written agreement signed by the Company and the Purchaser.

     Section 4.02. Counterparts.

     This   Agreement   may  be  executed   simultaneously   in  any  number  of
counterparts,  each of which counterparts shall be deemed to be an original, and
such counterparts shall constitute but one and the same instrument.

     Section 4.03. Governing Law.

     This Agreement  shall be construed in accordance with the laws of the State
of New York and the  obligations,  rights and remedies of the parties  hereunder
shall be determined in accordance with such laws.

     Section 4.04. Notices.

     All  demands,  notices and  direction  hereunder  shall be in writing or by
telecopy and shall be deemed effective upon receipt to:

          (a) in the case of the Company,

              Norwest Bank Minnesota, National Association
              5325 Spectrum Drive
              Frederick, MD  21703

              Attention:       Vice President, Master Servicing
              Phone:           301-696-7800
              Fax:             301-815-6365


              (b)      in the case of the Purchaser,

                       ------------------------------
                       ------------------------------
                       ------------------------------
                       Attention: -------------------


     Section 4.05. Severability of Provisions.

     If any one or more of the covenants, agreements, provision or terms of this
Agreement  shall  be for  any  reason  whatsoever,  including  regulatory,  held
invalid, then such covenants, agreements,  provisions or terms of this Agreement
and  shall  in no way  affect  the  validity  or  enforceability  of  the  other
provisions of this Agreement.

     Section 4.06. Successors and Assigns.

     The  provisions  of this  Agreement  shall be binding upon and inure to the
benefit of the respective  successors and assigns of the parties hereto, and all
such provisions shall inure to the benefit of the Certificateholders;  provided,
however,  that the  rights  under  this  Agreement  cannot  be  assigned  by the
Purchaser without the consent of the Company.

     Section 4.07. Article and Section Headings.

     The article and section  headings  herein are for  convenience of reference
only and shall not limit or otherwise affect the meaning hereof.

     Section 4.08. Confidentiality.

     The Purchaser  agrees that all information  supplied by or on behalf of the
Company  pursuant  to  Sections  2.01  or  2.02,  including  individual  account
information,  is the  property of the Company and the  Purchaser  agrees to hold
such information confidential and not to disclose such information.

     Each party  hereto  agrees  that  neither  it, nor any  officer,  director,
employee,  affiliate or independent  contractor acting at such party's direction
will  disclose  the terms of  Section  4.09 of this  Agreement  to any person or
entity  other  than such  party's  legal  counsel  except  pursuant  to a final,
non-appealable  order of court,  the pendency of such order the other party will
have  received  notice of at least five business days prior to the date thereof,
or pursuant to the other party's prior express written consent.

     Section 4.09. Indemnification.

     The Purchaser  agrees to indemnify  and hold harmless the Company,  NASCOR,
and each  Servicer  and each  person who  controls  the  Company,  NASCOR,  or a
Servicer and each of their respective officers, directors, affiliates and agents
acting at the Company's,  NASCOR's,  or a Servicer's direction (the "Indemnified
Parties")  against any and all losses,  claims,  damages or liabilities to which
they may be subject,  insofar as such losses, claims, damages or liabilities (or
actions in respect  thereof) arise out of, or are based upon,  actions taken by,
or actions not taken by, the Company, NASCOR, or a Servicer, or on their behalf,
in  accordance  with the  provisions  of this  Agreement  and (i) which  actions
conflict with the Company's,  NASCOR's,  or a Servicer's  obligations  under the
Pooling and Servicing Agreement or the related Servicing Agreement, or (ii) give
rise to securities  law liability  under federal or state  securities  laws with
respect to the  Certificates.  The  Purchaser  hereby  agrees to  reimburse  the
Indemnified  Parties for the reasonable legal or other expenses incurred by them
in connection  with  investigating  or defending any such loss,  claim,  damage,
liability or action. The indemnification  obligations of the Purchaser hereunder
shall survive the termination or expiration of this Agreement.


<PAGE>


     IN WITNESS  WHEREOF,  the Company and the Purchaser have caused their names
to be signed hereto by their respective officers thereunto duly authorized,  all
as of the day and year first above written.


                                   Norwest Bank Minnesota, National Association


                                   By:------------------------------
                                   Name:----------------------------
                                   Title:---------------------------


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


                                   By:------------------------------
                                   Name:----------------------------
                                   Title:---------------------------


<PAGE>


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