NORWEST ASSET SECURTIES CORP
S-3/A, 1996-05-15
ASSET-BACKED SECURITIES
Previous: UNIONBANCAL CORP, 10-Q, 1996-05-15
Next: CITGO PETROLEUM CORP, 10-12B/A, 1996-05-15



<PAGE>
   
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 15, 1996
    
 
                                                      REGISTRATION NO. 333-02209
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
   
                                 PRE-EFFECTIVE
                                AMENDMENT NO. 1
                                       TO
                                    FORM S-3
    
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
                      NORWEST ASSET SECURITIES CORPORATION
        (Exact name of registrant as specified in governing instruments)
 
   
                              5325 SPECTRUM DRIVE
                           FREDERICK, MARYLAND 21701
                                 (301) 846-8881
                    (Address of principal executive offices)
    
 
                           STEPHEN D. MORRISON, ESQ.
                            PRESIDENT AND SECRETARY
                      NORWEST ASSET SECURITIES CORPORATION
                           C/O NORWEST MORTGAGE, INC.
                            405 SOUTHWEST 5TH STREET
                             DES MOINES, IOWA 50328
                                 (515) 221-7520
                    (Name and address of agent for service)
                           --------------------------
                                   COPIES TO:
                            JORDAN M. SCHWARTZ, ESQ.
                         CADWALADER, WICKERSHAM & TAFT
                                100 MAIDEN LANE
                            NEW YORK, NEW YORK 10038
                                 (212) 504-6000
                           --------------------------
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
     FROM TIME TO TIME AFTER THIS REGISTRATION STATEMENT BECOMES EFFECTIVE.
                           --------------------------
 
    If  the  only securities  being registered  on this  Form are  being offered
pursuant to dividend or interest reinvestment plans, please check the  following
box. / /
 
    If  any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to  Rule 415 under the Securities Act  of
1933, please check the following box. /X/
 
    If  this form  is filed  to register  additional securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration statement  number  of  the  earlier
effective registration statement for the same offering. / /
 
    If  this form  is a post-effective  amendment filed pursuant  to Rule 462(c)
under the Securities Act, please check the following box and list the Securities
Act  registration  statement  number  of  the  earlier  effective   registration
statement for the same offering. / /
 
    If  delivery of the prospectus is expected  to be made pursuant to Rule 434,
please check the following box. / /
                           --------------------------
                        CALCULATION OF REGISTRATION FEE
 
   
<TABLE>
<CAPTION>
                                                           PROPOSED MAXIMUM  PROPOSED MAXIMUM     AMOUNT OF
          TITLE OF SECURITIES                 AMOUNT        OFFERING PRICE      AGGREGATE        REGISTRATION
           BEING REGISTERED              BEING REGISTERED      PER UNIT       OFFERING PRICE         FEE
<S>                                      <C>               <C>               <C>               <C>
Mortgage Pass-Through Certificates.....     $1,000,000         100%(1)          $1,000,000        $344.83(2)
</TABLE>
    
 
(1) Estimated solely for purposes of calculating the registration fee.
 
   
(2) Previously paid.
    
                           --------------------------
 
    THE REGISTRANT HEREBY  AMENDS THIS  REGISTRATION STATEMENT ON  SUCH DATE  OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE  A  FURTHER  AMENDMENT  WHICH  SPECIFICALLY  STATES  THAT  THE REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE  IN ACCORDANCE WITH SECTION 8(A)  OF
THE  SECURITIES ACT  OF 1933  OR UNTIL  THE REGISTRATION  STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION  8(A),
MAY DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                      NORWEST ASSET SECURITIES CORPORATION
                             CROSS REFERENCE SHEET
 
<TABLE>
<CAPTION>
ITEM AND CAPTION IN FORM S-3                                                     LOCATION IN PROSPECTUS
- ----------------------------------------------------------------  -----------------------------------------------------
<C>        <S>                                                    <C>
       1.  Forepart of the Registration Statement and Outside
            Front Cover Page of Prospectus......................  Forepart of Registration Statement and Outside Front
                                                                   Cover
       2.  Inside Front Cover and Outside Back Cover Pages of
            Prospectus..........................................  Inside Front and Outside Back Cover Pages
       3.  Summary Information, Risk Factors and Ratio of
            Earnings to Fixed Charges...........................  Summary of Prospectus; Risk Factors and Special
                                                                   Considerations; Prepayment and Yield Considerations;
                                                                   Description of the Certificates
       4.  Use of Proceeds......................................  Use of Proceeds
       5.  Determination of Offering Price......................  *
       6.  Dilution.............................................  *
       7.  Selling Security Holders.............................  *
       8.  Plan of Distribution.................................  Cover Page; Plan of Distribution
       9.  Description of Securities to be Registered...........  Description of the Certificates
      10.  Interests of Named Experts and Counsel...............  *
      11.  Material Changes.....................................  *
      12.  Incorporation of Certain Information by Reference....  Incorporation of Certain Information by Reference
      13.  Disclosure of Commission Position on Indemnification
            for Securities Act Liabilities......................  *
</TABLE>
 
- ------------------------
*Omitted since answer is negative or item is not applicable.
<PAGE>
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR  TO THE TIME THE REGISTRATION STATEMENT  BECOMES
EFFECTIVE.  THIS PROSPECTUS SUPPLEMENT SHALL NOT  CONSTITUTE AN OFFER TO SELL OR
THE SOLICITATION  OF AN  OFFER TO  BUY  NOR SHALL  THERE BE  ANY SALE  OF  THESE
SECURITIES  IN ANY  STATE IN  WHICH SUCH  OFFER, SOLICITATION  OR SALE  WOULD BE
UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY
SUCH STATE.
<PAGE>
PROSPECTUS SUPPLEMENT, SUBJECT TO COMPLETION, DATED MAY 15, 1996
 
                              $      (APPROXIMATE)
 
                      NORWEST ASSET SECURITIES CORPORATION
 
                                     SELLER
                MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 199 -
    PRINCIPAL AND INTEREST PAYABLE MONTHLY, COMMENCING IN               199
                             ---------------------
 
    The Series  199 -  Mortgage  Pass-Through Certificates  (the "Series  199  -
Certificates")  will consist of two classes of senior certificates (the "Class A
Certificates" and the "Class AP  Certificates," respectively, and together,  the
"Senior  Certificates") and two classes of subordinated certificates (the "Class
M Certificates" and the "Class B Certificates," respectively, and together,  the
"Subordinated  Certificates"). The Senior Certificates are entitled to a certain
priority, relative  to  the  Class M  and  Class  B Certificates,  in  right  of
distributions on the Mortgage Loans. As between the Class M Certificates and the
Class  B  Certificates,  the Class  M  Certificates  are entitled  to  a certain
priority  in  right  of  distributions  on  the  Mortgage  Loans.  The  Class  A
Certificates  will consist of  six subclasses of  Certificates designated as the
Class  A-1,  Class  A-2,  Class  A-3,  Class  A-4,  Class  A-5  and  Class   A-R
Certificates.  The Class AP  and Class M  Certificates will not  be divided into
Subclasses. The  Class  B  Certificates  will  consist  of  five  Subclasses  of
Certificates  designated as the Class  B-1, Class B-2, Class  B-3, Class B-4 and
Class B-5 Certificates, none of which is offered hereby. Each subclass of  Class
A  Certificates or Class B  Certificates is referred to  herein as a "Subclass."
The Class A Certificates, the Class AP Certificates and the Class M Certificates
are the only Series 199 - Certificates being offered hereby and are referred  to
herein collectively as the "Offered Certificates."
 
    The  Class A-1 Certificates are  planned amortization class certificates and
are referred to herein as the "PAC Certificates." The Class A-2 Certificates are
targeted amortization class certificates and are referred to herein as the  "TAC
Certificates."  The Class  A-3 Certificates  are companion  certificates and are
referred to herein as the "Companion Certificates."
                                                        (CONTINUED ON NEXT PAGE)
 
    PROSPECTIVE INVESTORS  IN  THE  OFFERED  CERTIFICATES  SHOULD  CONSIDER  THE
FACTORS  DISCUSSED UNDER  "RISK FACTORS" IN  THIS PROSPECTUS  SUPPLEMENT ON PAGE
S-  AND IN THE PROSPECTUS ON PAGE   .
                             ---------------------
 
THESE SECURITIES DO NOT REPRESENT INTERESTS  IN OR OBLIGATIONS OF NORWEST  ASSET
SECURITIES  CORPORATION OR ANY AFFILIATE THEREOF. NEITHER THESE SECURITIES
      NOR THE UNDERLYING MORTGAGE LOANS WILL BE INSURED OR GUARANTEED
           BY  ANY                  GOVERNMENTAL   AGENCY   OR
                                INSTRUMENTALITY.
 
THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS   THE
    SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
       PASSED   UPON  THE  ACCURACY  OR  ADEQUACY  OF  THIS  PROSPECTUS
         SUPPLEMENT OR THE PROSPECTUS. ANY        REPRESENTATION  TO
                      THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                      INITIAL SUBCLASS OR                                       INITIAL SUBCLASS OR
 SUBCLASS OR CLASS           CLASS          PASS-THROUGH   SUBCLASS OR CLASS           CLASS          PASS-THROUGH
    DESIGNATION      PRINCIPAL BALANCE (1)      RATE          DESIGNATION      PRINCIPAL BALANCE (1)      RATE
<S>                  <C>                    <C>           <C>                  <C>                    <C>
Class A-1..........       $                      %        Class A-5..........       $                      %
Class A-2..........       $                      %        Class A-R..........       $                      %
Class A-3..........       $                      %        Class AP...........       $                     (2)
Class A-4..........       $                      %        Class M............       $                      %
</TABLE>
 
(1) Approximate. The initial Subclass or Class Principal Balances are subject to
    adjustment as described herein.
(2)  The Class AP  Certificates are principal-only certificates  and will not be
    entitled to distributions in respect of interest.
 
    The  Offered   Certificates  will   be  purchased   by  [Underwriter]   (the
"Underwriter")  from the Seller and will be offered by the Underwriter from time
to time  in  negotiated  transactions  or otherwise  at  varying  prices  to  be
determined  at  the time  of  sale. The  aggregate  proceeds to  the  Seller are
expected to be approximately   %  of the initial aggregate principal balance  of
the  Class A, Class AP  and Class M Certificates  plus accrued interest thereon,
other than on an amount equal to the initial aggregate principal balance of  the
Class AP Certificates, before deducting expenses payable by the Seller estimated
to be $       . The price to be paid to the Seller for the Class A, Class AP and
Class  M Certificates  has not been  allocated among  the Class A,  Class AP and
Class M  Certificates nor  among the  Subclasses of  Class A  Certificates.  See
"Underwriting" herein.
 
    The  Offered Certificates  are offered by  the Underwriter  subject to prior
sale, when,  as  and if  accepted  by the  Underwriter  and subject  to  certain
conditions.  It is expected that the  Offered Certificates will be available for
delivery through the facilities of The Depository Trust Company or, in the  case
of  the  Class  A-R,  Class AP  and  Class  M Certificates,  at  the  offices of
              , New  York,  New  York          ,  in  each  case,  on  or  about
              , 199 .
 
                                 [UNDERWRITER]
 
          THE DATE OF THIS PROSPECTUS SUPPLEMENT IS           , 199 .
<PAGE>
(CONTINUED FROM PREVIOUS PAGE)
 
    The credit enhancement for the Series 199 - Certificates is provided through
the  use of a  "shifting interest" type  subordination, which has  the effect of
allocating all or a disproportionate  amount of principal prepayments and  other
unscheduled  receipts of principal to the  Class A Certificates in the aggregate
for at least nine years beginning  on the first Distribution Date. See  "Summary
Information -- Credit Enhancement " and "-- Effects of Prepayments on Investment
Expectations,"  "Description  of  the Certificates"  and  "Prepayment  and Yield
Considerations" herein.
 
    The Series 199  - Certificates  will evidence  in the  aggregate the  entire
beneficial  ownership interest in a trust  fund (the "Trust Estate") established
by  Norwest  Asset  Securities  Corporation  (the  "Seller"  or  "NASCOR")   and
consisting  of a pool  of fixed interest rate,  conventional, monthly pay, fully
amortizing,  one-  to  four-family,  residential  first  mortgage  loans  having
original  terms  to stated  maturity  of approximately     years  (the "Mortgage
Loans"), other than  the Fixed  Retained Yield described  herein, together  with
certain related property. Certain of the Mortgage Loans may be secured primarily
by  shares  issued by  cooperative housing  corporations.  The servicing  of the
Mortgage Loans will be performed by various servicers identified herein (each, a
"Servicer"), including Norwest Mortgage, Inc. ("Norwest Mortgage"), an affiliate
of both the Seller  and Norwest Bank  Minnesota, National Association  ("Norwest
Bank"),  and will be supervised  by Norwest Bank (in  such capacity, the "Master
Servicer"). The Mortgage Loans  will be acquired  by the Seller  on the date  of
issuance  of the Series 199 - Certificates  from Norwest Mortgage, and will have
been originated by Norwest Mortgage or acquired by Norwest Mortgage from various
entities (each, a "Correspondent"). The Mortgage Loans not originated by Norwest
Mortgage were originated by the Correspondents or acquired by the Correspondents
pursuant to mortgage loan purchase programs operated by such Correspondents. See
"Description of  the  Mortgage  Loans"  herein.  The  Senior  Certificates  will
initially evidence in the aggregate an approximate   % undivided interest in the
principal balance of the Mortgage Loans. The Class M Certificates will initially
evidence  in the aggregate an approximate    % interest in the principal balance
of the Mortgage Loans. The remaining approximate    % undivided interest in  the
principal  balance  of the  Mortgage  Loans will  be  evidenced by  the  Class B
Certificates.
 
    Distributions in respect of interest and principal will be made on the  25th
day  of each  month or, if  such day  is not a  business day,  on the succeeding
business day (each a "Distribution Date"), commencing in           199 , to  the
holders  of Offered  Certificates, as described  herein. The  amount of interest
accrued on any Subclass or Class  of Offered Certificates (other than the  Class
AP  Certificates)  will be  reduced by  any  prepayment interest  shortfalls and
certain other shortfalls in the collection of interest from mortgagors, as  well
as certain losses, as described herein under "Description of the Certificates --
Interest."  The Class AP  Certificates are principal-only  certificates and will
not be entitled  to distributions  of interest.  On any  Distribution Date,  the
holders  of the Class M Certificates will receive distributions of interest only
if the holders  of the Senior  Certificates have received  all amounts due  them
(other  than  the  Class AP  Deferred  Amount)  on such  date.  Distributions of
principal to holders of  the Class M  Certificates will be  made only after  the
holders  of the Class AP Certificates have received the Class AP Deferred Amount
and the holders of the Class M Certificates have received the amount of interest
due them with respect to such  Distribution Date. On any Distribution Date,  the
holders  of a  Subclass of  Class B  Certificates will  receive distributions of
interest only if the holders of the Senior Certificates and Class M Certificates
and each Subclass  of Class B  Certificates with a  lower numerical  designation
have  received all amounts of interest and of principal (other than the Class AP
Deferred Amount)  to which  they are  entitled on  such date.  Distributions  of
principal  to holders of  a Subclass of  Class B Certificates  will be made only
after the Senior  Certificates, the Class  M Certificates and  each Subclass  of
Class  B  Certificates  with a  lower  numerical designation  have  received all
distributions to which they are entitled (including in the case of the Class  AP
Certificates,  the Class AP Deferred Amount)  and such Subclass has received the
amount of interest due with respect to such Distribution Date. Distributions  in
reduction  of  the  principal  balance  of  the  Class  A  Certificates  on  any
Distribution Date  will  be  allocated  among the  Subclasses  of  the  Class  A
 
                                      S-2
<PAGE>
Certificates   in  the  manner  described   herein  under  "Description  of  the
Certificates  --  Principal  (Including  Prepayments)."  Distributions  to  each
Subclass  or undivided Class of Offered Certificates will be made pro rata among
Certificateholders of such Subclass or Class.
 
    The Offered Certificates may not be an appropriate investment for individual
investors who do  not have  sufficient resources  or expertise  to evaluate  the
particular  characteristics of the  applicable Classes or  Subclasses of Offered
Certificates. This may be the case because:
 
    - The yield to maturity of Offered  Certificates purchased at a price  other
      than  par will be sensitive to the  uncertain rate and timing of principal
      prepayments on the Mortgage Loans;
 
    - The rate of principal distributions on, and the weighted average life  of,
      the  Offered  Certificates will  be sensitive  to  the uncertain  rate and
      timing of principal prepayments on the Mortgage Loans;
 
    - As discussed below, there can be no assurance that a secondary market  for
      the  Offered Certificates will develop  or provide Certificateholders with
      liquidity of investment; and
 
    - The Offered  Certificates  are subject  to  the further  risks  and  other
      special  considerations discussed herein  and in the  Prospectus under the
      heading "Risk Factors."
 
    THE YIELD  TO MATURITY  OF THE  OFFERED CERTIFICATES  WILL BE  SENSITIVE  IN
VARYING  DEGREES  TO  THE  RATE  AND  TIMING  OF  PRINCIPAL  PAYMENTS (INCLUDING
PREPAYMENTS, WHICH MAY  BE MADE  AT ANY TIME  WITHOUT PENALTY)  ON THE  MORTGAGE
LOANS.  INVESTORS  IN THE  OFFERED CERTIFICATES  SHOULD CONSIDER  THE ASSOCIATED
RISKS, INCLUDING, IN THE CASE OF  OFFERED CERTIFICATES PURCHASED AT A  DISCOUNT,
PARTICULARLY  THE CLASS AP CERTIFICATES, THE RISK THAT A SLOWER THAN ANTICIPATED
RATE OF PAYMENTS IN RESPECT OF PRINCIPAL (INCLUDING PREPAYMENTS) ON THE MORTGAGE
LOANS, OR IN THE  CASE OF THE  CLASS AP CERTIFICATES,  ON THE DISCOUNT  MORTGAGE
LOANS,  COULD RESULT IN AN ACTUAL YIELD THAT IS LOWER THAN ANTICIPATED. A FASTER
THAN  ANTICIPATED  RATE   OF  PAYMENTS  IN   RESPECT  OF  PRINCIPAL   (INCLUDING
PREPAYMENTS) ON THE MORTGAGE LOANS COULD RESULT IN AN ACTUAL YIELD THAT IS LOWER
THAN  ANTICIPATED FOR  INVESTORS PURCHASING  OFFERED CERTIFICATES  AT A PREMIUM.
INVESTORS PURCHASING OFFERED CERTIFICATES AT A PREMIUM SHOULD ALSO CONSIDER  THE
RISK  THAT  A  RAPID  RATE  OF  PAYMENTS  IN  RESPECT  OF  PRINCIPAL  (INCLUDING
PREPAYMENTS) ON THE MORTGAGE LOANS COULD RESULT IN THE FAILURE OF SUCH INVESTORS
TO FULLY RECOVER THEIR INITIAL INVESTMENTS. THE YIELD TO INVESTORS IN THE  CLASS
AP  CERTIFICATES WILL BE  SENSITIVE TO THE  RATE OF PRINCIPAL  PAYMENTS OF THOSE
MORTGAGE LOANS WITH NET  MORTGAGE INTEREST RATES  LESS THAN    % (THE  "DISCOUNT
MORTGAGE LOANS"). THE YIELD TO MATURITY OF THE CLASS M CERTIFICATES WILL BE MORE
SENSITIVE THAN THE SENIOR CERTIFICATES TO THE AMOUNT AND TIMING OF LOSSES DUE TO
LIQUIDATIONS  OF THE  MORTGAGE LOANS,  IN THE EVENT  THAT THE  CLASS B PRINCIPAL
BALANCE HAS  BEEN REDUCED  TO  ZERO. SEE  "DESCRIPTION  OF THE  CERTIFICATES  --
INTEREST," "-- PRINCIPAL (INCLUDING PREPAYMENTS)" AND "-- SUBORDINATION OF CLASS
M  AND CLASS  B CERTIFICATES" HEREIN  AND "PREPAYMENT  AND YIELD CONSIDERATIONS"
HEREIN AND IN THE PROSPECTUS.
 
    THE WEIGHTED  AVERAGE LIFE  OF  THE COMPANION  CERTIFICATES WILL  BE  HIGHLY
SENSITIVE TO THE RATE OF PREPAYMENTS ON THE MORTGAGE LOANS. AT RATES AT OR ABOVE
CERTAIN  PREPAYMENT  LEVELS,  PAYMENTS OF  PRINCIPAL  ALLOCATED TO  THE  CLASS A
CERTIFICATES IN EXCESS OF AMOUNTS RESULTING FROM SUCH PREPAYMENT LEVELS WILL  BE
PAID  TO THE HOLDERS  OF THE COMPANION  CERTIFICATES PRIOR TO  BEING PAID TO THE
HOLDERS OF  THE  TAC CERTIFICATES  AND  THE  PAC CERTIFICATES,  RESULTING  IN  A
REDUCTION  IN THE  WEIGHTED AVERAGE  LIFE OF  THE COMPANION  CERTIFICATES. AT OR
BELOW CERTAIN  PREPAYMENT  LEVELS, THE  COMPANION  CERTIFICATES MAY  RECEIVE  NO
PRINCIPAL  PAYMENTS FOR EXTENDED  PERIODS OF TIME, RESULTING  IN AN EXTENSION OF
THE WEIGHTED AVERAGE  LIFE THEREOF.  SEE "PREPAYMENT  AND YIELD  CONSIDERATIONS"
HEREIN.
 
    The  Offered Certificates, other  than the Class  A-R, Class AP  and Class M
Certificates,  will  be  issued  only   in  book-entry  form  (the   "Book-Entry
Certificates"),   and  purchasers  thereof  will  not  be  entitled  to  receive
definitive certificates except  in the limited  circumstances set forth  herein.
The  Book-Entry Certificates will  be registered in  the name of  Cede & Co., as
nominee of  The  Depository  Trust  Company,  which  will  be  the  "holder"  or
"Certificateholder"  of such  Certificates, as such  terms are  used herein. See
"Description of the Certificates" herein.
 
                                      S-3
<PAGE>
    Each Subclass and Class  of Offered Certificates is  offered in the  minimum
denominations   described  herein   under  "Summary  Information   --  Forms  of
Certificates; Denominations." It is intended  that the Offered Certificates  not
be  directly or indirectly held or beneficially owned in amounts lower than such
minimum denominations.
 
    There is  currently no  secondary market  for the  Offered Certificates  and
there  can be no  assurance that a secondary  market will develop  or, if such a
market does develop, that it  will provide Certificateholders with liquidity  of
investment  at any particular time or for  the life of the Offered Certificates.
The Underwriter intends to  act as a market  maker in the Offered  Certificates,
subject  to applicable provisions of federal and state securities laws and other
regulatory requirements, but is under no obligation to do so and any such market
making may be  discontinued at  any time.  There can  be no  assurance that  any
investor  will be  able to sell  an Offered Certificate  at a price  equal to or
greater than the  price at  which such Certificate  was purchased.  THE CLASS  M
CERTIFICATES  MAY NOT BE  TRANSFERRED UNLESS THE TRANSFEREE  HAS DELIVERED (I) A
REPRESENTATION LETTER TO THE TRUSTEE AND THE SELLER 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  HEREIN, THAT THE SOURCE OF FUNDS USED TO PURCHASE THE CERTIFICATES IS
AN "INSURANCE COMPANY GENERAL ACCOUNT" OR (II) AN OPINION OF COUNSEL AS PROVIDED
IN THIS PROSPECTUS SUPPLEMENT. IN ADDITION, THE CLASS A-R CERTIFICATE MAY NOT BE
PURCHASED BY OR TRANSFERRED  TO (I) A  "DISQUALIFIED ORGANIZATION," (II)  EXCEPT
UNDER  CERTAIN LIMITED CIRCUMSTANCES, A PERSON WHO IS NOT A "U.S. PERSON," (III)
A PLAN OR (IV) ANY  PERSON OR ENTITY WHO THE  TRANSFEROR KNOWS OR HAS REASON  TO
KNOW  WILL BE UNWILLING OR UNABLE TO PAY  WHEN DUE FEDERAL, STATE OR LOCAL TAXES
WITH RESPECT  THERETO.  See  "ERISA  Considerations"  and  "Description  of  the
Certificates  --  Restrictions  on  Transfer  of  the  Class  A-R  and  Class  M
Certificates" herein and  "Certain Federal  Income Tax  Consequences --  Federal
Income  Tax Consequences for  REMIC Certificates --  Tax-Related Restrictions on
Transfer of Residual Certificates" in the Prospectus.
 
    An election will be made to treat the Trust Estate as a real estate mortgage
investment conduit (the "REMIC") for  federal income tax purposes. As  described
more  fully herein and in  the Prospectus, the Class  A-1, Class A-2, Class A-3,
Class A-4, Class A-5, Class AP, Class M, Class B-1, Class B-2, Class B-3,  Class
B-4  and Class B-5 Certificates will constitute "regular interests" in the REMIC
and the Class  A-R Certificate will  constitute the "residual  interest" in  the
REMIC.    PROSPECTIVE   INVESTORS    ARE   CAUTIONED   THAT    THE   CLASS   A-R
CERTIFICATEHOLDER'S REMIC TAXABLE INCOME AND  THE LIABILITY THEREON MAY  EXCEED,
AND  MAY SUBSTANTIALLY EXCEED, CASH DISTRIBUTIONS  TO SUCH HOLDER DURING CERTAIN
PERIODS, IN WHICH EVENT SUCH HOLDER MUST HAVE SUFFICIENT ALTERNATIVE SOURCES  OF
FUNDS  TO PAY SUCH TAX LIABILITY. See "Summary Information -- Federal Income Tax
Status" and  "Federal Income  Tax Considerations"  herein and  "Certain  Federal
Income   Tax  Consequences  --   Federal  Income  Tax   Consequences  for  REMIC
Certificates" in the Prospectus.
 
    The Class A Certificates represent six Subclasses of a Class, and the  Class
AP  and Class M Certificates each represent a  Class, all of which are part of a
separate Series of  Certificates being  offered by  the Seller  pursuant to  the
Prospectus  dated                 , 199 accompanying this Prospectus Supplement.
Any prospective investor should not purchase any Offered Certificates  described
herein unless it has received the Prospectus and this Prospectus Supplement. The
Prospectus  shall not be considered complete without this Prospectus Supplement.
The Prospectus contains important information  regarding this offering which  is
not  contained herein, and prospective investors are urged to read, in full, the
Prospectus and this Prospectus Supplement.
 
    UNTIL              , 199 , ALL DEALERS EFFECTING TRANSACTIONS IN THE OFFERED
CERTIFICATES, WHETHER OR NOT PARTICIPATING IN THIS DISTRIBUTION, MAY BE REQUIRED
TO DELIVER A PROSPECTUS  SUPPLEMENT AND PROSPECTUS. THIS  IS IN ADDITION TO  THE
OBLIGATION  OF DEALERS  TO DELIVER A  PROSPECTUS SUPPLEMENT  AND PROSPECTUS WHEN
ACTING  AS  UNDERWRITERS  AND  WITH  RESPECT  TO  THEIR  UNSOLD  ALLOTMENTS   OR
SUBSCRIPTIONS.
 
                                      S-4
<PAGE>
                               TABLE OF CONTENTS
                             PROSPECTUS SUPPLEMENT
 
<TABLE>
<CAPTION>
                                                                                                              PAGE
                                                                                                            ---------
<S>                                                                                                         <C>
Summary Information.......................................................................................        S-7
Risk Factors..............................................................................................       S-27
  General.................................................................................................       S-27
  Subordination...........................................................................................       S-27
  Book-Entry System for Certain Classes and Subclasses of Certificates....................................       S-27
Description of the Certificates...........................................................................       S-28
  Denominations...........................................................................................       S-28
  Definitive Form.........................................................................................       S-28
  Book-Entry Form.........................................................................................       S-28
  Distributions...........................................................................................       S-28
  Interest................................................................................................       S-31
  Principal (Including Prepayments).......................................................................       S-35
    Calculation of Amount to be Distributed to the Class A Certificates...................................       S-35
    Calculation of Amount to be Distributed to the Class AP Certificates..................................       S-38
    Calculation of Amount to be Distributed to the Class M Certificates...................................       S-39
    Allocation of Amount to be Distributed................................................................       S-42
    Principal Payment Characteristics of the PAC Certificates, the TAC Certificates and the Companion
     Certificates.........................................................................................       S-43
  Example of Distribution to Certificateholders...........................................................       S-46
  Additional Rights of the Class A-R Certificateholder....................................................       S-47
  Periodic Advances.......................................................................................       S-47
  [Financial Security Assurance Inc.......................................................................       S-48]
  Restrictions on Transfer of the Class A-R and Class M Certificates......................................       S-50
  Reports.................................................................................................       S-51
  Subordination of Class M and Class B Certificates.......................................................       S-52
    Allocation of Losses..................................................................................       S-52
Description of the Mortgage Loans.........................................................................       S-57
  General.................................................................................................       S-57
  Mortgage Loan Data......................................................................................       S-59
  Mandatory Repurchase or Substitution of Mortgage Loans..................................................       S-63
  Optional Repurchase of Defaulted Mortgage Loans.........................................................       S-63
  Mortgage Underwriting Standards.........................................................................       S-63
Norwest Mortgage Delinquency and Foreclosure Experience...................................................       S-64
Prepayment and Yield Considerations.......................................................................       S-68
  Sensitivity of the Class AP Certificates................................................................       S-74
Pooling and Servicing Agreement...........................................................................       S-75
  General.................................................................................................       S-75
  Distributions...........................................................................................       S-76
  Voting..................................................................................................       S-76
  Trustee.................................................................................................       S-76
  Master Servicer.........................................................................................       S-77
  Optional Termination....................................................................................       S-77
Servicing of the Mortgage Loans...........................................................................       S-78
  The Servicers...........................................................................................       S-78
  Servicer Custodial Accounts.............................................................................       S-78
  Fixed Retained Yield; Servicing Compensation and Payment of Expenses....................................       S-79
</TABLE>
 
                                      S-5
<PAGE>
<TABLE>
<CAPTION>
                                                                                                              PAGE
                                                                                                            ---------
<S>                                                                                                         <C>
  Servicer Defaults.......................................................................................       S-80
Federal Income Tax Considerations.........................................................................       S-80
  Regular Certificates....................................................................................       S-80
  Residual Certificate....................................................................................       S-80
ERISA Considerations......................................................................................       S-82
Legal Investment..........................................................................................       S-83
Secondary Market..........................................................................................       S-83
Underwriting..............................................................................................       S-84
Legal Matters.............................................................................................       S-84
[Experts..................................................................................................       S-84]
Use of Proceeds...........................................................................................       S-84
Ratings...................................................................................................       S-85
Index of Significant Prospectus Supplement Definitions....................................................       S-86
</TABLE>
 
                                      S-6
<PAGE>
                              SUMMARY INFORMATION
 
    THE  FOLLOWING IS  QUALIFIED IN  ITS ENTIRETY  BY REFERENCE  TO THE DETAILED
INFORMATION APPEARING  ELSEWHERE  IN  THIS  PROSPECTUS  SUPPLEMENT  AND  IN  THE
ACCOMPANYING  PROSPECTUS  (THE  "PROSPECTUS"). CAPITALIZED  TERMS  USED  IN THIS
PROSPECTUS SUPPLEMENT  AND  NOT  OTHERWISE  DEFINED  HEREIN  HAVE  THE  MEANINGS
ASSIGNED  IN  THE PROSPECTUS.  SEE "INDEX  OF SIGNIFICANT  PROSPECTUS SUPPLEMENT
DEFINITIONS" HEREIN AND "INDEX OF SIGNIFICANT DEFINITIONS" IN THE PROSPECTUS.
 
<TABLE>
<S>                               <C>
Title of Securities.............  Mortgage Pass-Through Certificates, Series 199
                                  -Certificates (the  "Series  199 -  Certificates"  or  the
                                  "Certificates").
Seller..........................  Norwest Asset Securities Corporation (the "Seller").
Participant.....................  Norwest  Mortgage, Inc. ("Norwest Mortgage"). The Mortgage
                                  Loans that  Norwest  Mortgage  sells to  the  Seller  will
                                  either   have  been  originated  by  Norwest  Mortgage  or
                                  acquired by Norwest Mortgage from various entities  (each,
                                  a  "Correspondent"), which either  originated the Mortgage
                                  Loans or acquired the Mortgage Loans pursuant to  mortgage
                                  loan  purchase  programs operated  by  the Correspondents.
                                  None of  the Correspondents  is  an affiliate  of  Norwest
                                  Mortgage.
Servicing/Servicers.............  Norwest  Mortgage and  one or more  other Servicers (which
                                  will be Correspondents)  approved by  the Master  Servicer
                                  will provide customary servicing functions with respect to
                                  the Mortgage Loans pursuant to servicing agreements (each,
                                  an "Underlying Servicing Agreement") assigned to the Trust
                                  Estate.  Servicers servicing more than   % of the Mortgage
                                  Loans by  Cut-Off  Date Aggregate  Principal  Balance  are
                                  Norwest  Mortgage and           . Among  other things, the
                                  Servicers are  obligated  under certain  circumstances  to
                                  advance delinquent payments of principal and interest with
                                  respect  to the Mortgage Loans. Each of the Servicers will
                                  be entitled to (i) a monthly Servicing Fee with respect to
                                  each  Mortgage   Loan   it  services   payable   on   each
                                  Distribution  Date that  is expressed as  one-twelfth of a
                                  fixed percentage  per annum  multiplied by  the  Scheduled
                                  Principal  Balance of such Mortgage  Loan on the first day
                                  of the  preceding Due  Period  and (ii)  other  additional
                                  servicing  compensation  described  herein.  The  weighted
                                  average of  the  Servicing Fee  Rates  is expected  to  be
                                  approximately    % as of  the Cut-Off Date. See "Servicing
                                  of the Mortgage Loans" herein and in the Prospectus.
Master Servicer.................  Norwest Bank  Minnesota,  National  Association  ("Norwest
                                  Bank" and, in its capacity as master servicer, the "Master
                                  Servicer")   Norwest  Bank  is   a  direct,  wholly  owned
                                  subsidiary of Norwest Corporation  and is an affiliate  of
                                  the  Seller. The Master Servicer  will (a) monitor certain
                                  aspects of the servicing of the Mortgage Loans, (b)  cause
                                  the  Mortgage Loans  to be  serviced in  the event  that a
                                  Servicer is  terminated and  a successor  Servicer is  not
                                  appointed,   (c)  provide   administrative  services  with
                                  respect to the Certificates,  (d) provide certain  reports
                                  to  the  Trustee  regarding  the  Mortgage  Loans  and the
                                  Certificates  and  (e)  make   advances,  to  the   extent
                                  described  herein, with respect to the Mortgage Loans if a
                                  Servicer (other  than Norwest  Mortgage) fails  to make  a
                                  required  advance. The Master Servicer will be entitled to
                                  (i) a monthly  Master Servicing Fee  with respect to  each
                                  Mortgage  Loan, payable  on each Distribution  Date, in an
</TABLE>
 
                                      S-7
<PAGE>
 
<TABLE>
<S>                               <C>
                                  amount equal  to one-twelfth  of  a fixed  percentage  per
                                  annum  multiplied  by the  Scheduled Principal  Balance of
                                  such Mortgage Loan on the first day of the preceding month
                                  and (ii) any interest earned  on funds in the  Certificate
                                  Account.  See  "The  Pooling  and  Servicing  Agreement --
                                  Master Servicer" herein and "Norwest Bank," "Servicing  of
                                  the  Mortgage Loans  -- The Master  Servicer" and "Certain
                                  Matters Regarding the Master Servicer" in the Prospectus.
Trustee.........................  [Trustee], a national banking association (the  "Trustee")
                                  will,  in  addition  to performing  the  normal  duties of
                                  trustee with respect to  the Certificates, make  advances,
                                  to  the  extent  described  herein,  with  respect  to the
                                  Mortgage Loans if Norwest Mortgage, as Servicer, fails  to
                                  make a required advance. The Trustee will be entitled to a
                                  monthly  Trustee Fee  with respect to  each Mortgage Loan,
                                  payable on each Distribution Date,  in an amount equal  to
                                  one-twelfth  of a fixed percentage per annum multiplied by
                                  the Scheduled Principal Balance  of such Mortgage Loan  on
                                  the  first day  of the  preceding month.  See "Pooling and
                                  Servicing  Agreement  --   Trustee"  in  this   Prospectus
                                  Supplement.
Rating of Certificates..........  It  is  a  condition to  the  issuance of  the  Series 199
                                  - Certificates offered by  this Prospectus Supplement  and
                                  the  Prospectus that they shall have been rated [["Aaa" by
                                  Moody's Investors  Service,  Inc. ("Moody's")]  ["AAA"  by
                                  [Fitch  Investors Service, L.P.  ("Fitch")] [Duff & Phelps
                                  Credit Rating  Co. ("DCR")]]  [and] ["AAA"  and "AAAr"  by
                                  Standard and Poor's ("S&P")]] and [["Aa" by Moody's] ["AA"
                                  by  [Fitch] [DCR]  [S&P]] [and] ["A"  by [Moody's] [Fitch]
                                  [DCR] [S&P]] [and] [["Baa"  by Moody's] ["BBB" by  [Fitch]
                                  [DCR]  [S&P]. The ratings by [Moody's] [Fitch] [DCR] [S&P]
                                  are  not  recommendations  to  buy,  sell  or  hold   such
                                  certificates  and may be subject to revision or withdrawal
                                  at any time by the assigning rating agency. The ratings do
                                  not address the possibility that, as a result of principal
                                  prepayments, holders of  such certificates  may receive  a
                                  lower   than  anticipated   yield.  See   "--  Effects  of
                                  Prepayments  on   Investment   Expectations"   below   and
                                  "Ratings" in this Prospectus Supplement.
Description of Certificates.....  The  Series 199 - Certificates will consist of the Class A
                                  Certificates, the  Class  AP  Certificates,  the  Class  M
                                  Certificates and the Class B Certificates. The Class A and
                                  Class   AP  Certificates  represent  a  type  of  interest
                                  referred to in the Prospectus as "Senior Certificates" and
                                  the Class M and Class  B Certificates represent a type  of
                                  interest  referred to  in the  Prospectus as "Subordinated
                                  Certificates." As these  designations suggest, the  Senior
                                  Certificates  are entitled to a certain priority, relative
                                  to the  Class M  and  Class B  Certificates, in  right  of
                                  distributions  on the mortgage loans underlying the Series
                                  199 - Certificates (the "Mortgage Loans"). As between  the
                                  Class  M Certificates  and the  Class B  Certificates, the
                                  Class M Certificates are entitled to a certain priority in
                                  right of  distributions on  the  Mortgage Loans.  See  "--
                                  Distributions of Principal and Interest" below.
                                  The  Senior  Certificates will  initially evidence  in the
                                  aggregate an approximate      % interest in the  principal
                                  balance  of the  Mortgage Loans. The  Class M Certificates
                                  will initially evidence
</TABLE>
 
                                      S-8
<PAGE>
 
<TABLE>
<S>                               <C>
                                  in the aggregate  an approximate       %  interest in  the
                                  principal  balance  of the  Mortgage Loans.  The remaining
                                  approximate     % interest in the principal balance of the
                                  Mortgage  Loans  will   be  evidenced  by   the  Class   B
                                  Certificates.  The Class AP  Certificates will evidence an
                                  interest in portions of the principal balances of Mortgage
                                  Loans that have Net Mortgage Interest Rates, as defined on
                                  page S-   ,  less  than        % (the  "Discount  Mortgage
                                  Loans"),  such  initial interest  in the  aggregate repre-
                                  senting an approximate     % interest by principal balance
                                  of  the  Mortgage  Loans  (the  "Pool  Balance  (Class  AP
                                  Portion)").  In addition,  the Class  AP Certificates will
                                  represent an approximate       % initial  interest in  the
                                  principal  balance  of  the  Discount  Mortgage  Loans. By
                                  virtue of the  subordination of  the Class M  and Class  B
                                  Certificates,   it   is   possible  that   the   Class  AP
                                  Certificates  may  also   receive  support  from   certain
                                  payments  made with respect to the other Mortgage Loans in
                                  the Trust  Estate.  The  Class  A, Class  M  and  Class  B
                                  Certificates  will evidence the  entire remaining interest
                                  in the principal balance of the Mortgage Loans (the  "Pool
                                  Balance  (Classes A/M/B Portion)"). Initially, the Class A
                                  Certificates will evidence in the aggregate an approximate
                                      % (approximately $        ) undivided interest in  the
                                  initial  Pool Balance (Classes A/M/B Portion); the Class M
                                  Certificates will evidence in the aggregate an approximate
                                      % (approximately $        ) undivided interest in  the
                                  initial  Pool  Balance  (Classes A/M/B  Portion);  and the
                                  Class B Certificates will evidence in the aggregate an ap-
                                  proximate     % (approximately $        ) undivided inter-
                                  est in the initial  Pool Balance (Classes A/M/B  Portion).
                                  The   relative  interests  in  the  initial  Pool  Balance
                                  (Classes A/M/B Portion) represented by the Class A,  Class
                                  M and Class B Certificates are subject to change over time
                                  because  of  the  disproportionate  allocation  of certain
                                  unscheduled principal payments to the Class A Certificates
                                  for a  specified  period  and the  allocation  of  certain
                                  losses  and  certain  shortfalls  first  to  the  Class  B
                                  Certificates in reverse numerical  order, and then to  the
                                  Class  M  Certificates, prior  to  the allocation  of such
                                  losses and  shortfalls to  the  Class A  Certificates,  as
                                  discussed  in "-- Distributions of Principal and Interest"
                                  and "-- Credit Enhancement" below.
                                  The Class A  Certificates will consist  of six  Subclasses
                                  designated  as the Class A-1,  Class A-2, Class A-3, Class
                                  A-4, Class A-5  and Class A-R  Certificates. The Class  AP
                                  Certificates  are a separate class  and are not a Subclass
                                  of the  Class A  Certificates. The  Class AP  and Class  M
                                  Certificates  will  not  be divided  into  Subclasses. The
                                  Class B  Certificates  will consist  of  five  Subclasses,
                                  designated  as the Class B-1,  Class B-2, Class B-3, Class
                                  B-4 and  Class  B-5  Certificates which  are  not  offered
                                  hereby  and may  be retained  or sold  by the  Seller. The
                                  Class A Certificates,  the Class AP  Certificates and  the
                                  Class  M Certificates  are referred to  in this Prospectus
                                  Supplement as the "Offered Certificates."
                                  The Class A-1 Certificates are planned amortization  class
                                  certificates    (referred   to   herein    as   the   "PAC
                                  Certificates")  because,  based  on  certain   assumptions
                                  described in the   paragraph on
</TABLE>
 
                                      S-9
<PAGE>
 
<TABLE>
<S>                               <C>
                                  page  S-  , if prepayments  on the Mortgage Loans occur at
                                  any constant rate  between approximately        % SPA  (as
                                  defined herein under "Prepayment and Yield
                                  Considerations")  and  approximately        %  SPA,  it is
                                  expected that their principal balances would be reduced to
                                  the  percentages  of  their  initial  principal   balances
                                  indicated  in  the  tables  on  page     .  The  Class A-2
                                  Certificates are targeted amortization class  certificates
                                  (referred  to herein  as the  "TAC Certificates") because,
                                  based on certain assumptions described in the paragraph on
                                  page S-  , at a constant prepayment level of approximately
                                      % SPA, it  is expected that  their principal  balances
                                  would  be  reduced  to the  percentages  of  their initial
                                  principal balances indicated  in the  tables on page     .
                                  However,  it is highly unlikely that principal prepayments
                                  on the Mortgage Loans will  occur at any constant rate  or
                                  that  the Mortgage Loans will prepay at the same rate. The
                                  Class  A-3   Certificates   are   companion   certificates
                                  (referred  to  herein  as  the  "Companion  Certificates")
                                  because payments  of principal  allocated to  the Class  A
                                  Certificates  in excess of  amounts resulting from certain
                                  prepayment levels will be paid first to the holders of the
                                  Companion Certificates for  so long  as such  Certificates
                                  remain  outstanding, prior to being paid to the holders of
                                  the  TAC  Certificates  and  the  PAC  Certificates.   See
                                  "Description  of the Certificates  -- Principal (Including
                                  Prepayments) -- Allocation  of Amount  to be  Distributed"
                                  and  "--  Principal  Payment  Characteristics  of  the PAC
                                  Certificates,  the  TAC  Certificates  and  the  Companion
                                  Certificates" in this Prospectus Supplement.
                                  The  Offered Certificates  have the  approximate aggregate
                                  initial principal balances set forth on the cover of  this
                                  Prospectus   Supplement.   Any   difference   between  the
                                  aggregate principal balance of the  Class A, Class AP  and
                                  Class  M Certificates  as of the  date of  issuance of the
                                  Series 199  -   Certificates and  the approximate  initial
                                  aggregate principal balance of such Subclasses and Classes
                                  as  of the  date of  this Prospectus  Supplement will not,
                                  with respect to the Senior Certificates, exceed 5% of  the
                                  initial  aggregate principal  balance of  the Class  A and
                                  Class AP  Certificates  as stated  on  the cover  of  this
                                  Prospectus  Supplement and,  with respect  to the  Class M
                                  Certificates,  will  depend  on  the  final  subordination
                                  levels  for the Series 199 -  Certificates. Any difference
                                  allocated to the Class A Certificates will be allocated to
                                  one or more  of the  Subclasses of  Class A  Certificates,
                                  other  than the Class A-R Certificate, and to the Class AP
                                  Certificates.
Forms of Certificates;
  Denominations.................  The  Offered  Certificates  will   be  issued  either   in
                                  book-entry  form or in fully registered, certificated form
                                  ("Definitive  Certificates").  The  following  table  sets
                                  forth   the   original  certificate   form,   the  minimum
                                  denomination  and  the  incremental  denomination  of  the
                                  Offered  Certificates.  The Offered  Certificates  are not
                                  intended to be directly or indirectly held or beneficially
                                  owned in amounts  lower than  such minimum  denominations.
                                  See "Descriptions of the Certificates -- Denominations" in
                                  this Prospectus Supplement.
</TABLE>
 
                                      S-10
<PAGE>
                 FORM AND DENOMINATIONS OF OFFERED CERTIFICATES
 
<TABLE>
<CAPTION>
                                                             ORIGINAL CERTIFICATE       MINIMUM      INCREMENTAL
                         SUBCLASS                                    FORM            DENOMINATION   DENOMINATION
- ----------------------------------------------------------  -----------------------  -------------  -------------
<S>                                                         <C>                      <C>            <C>
Classes A-1, A-2, A-3, A-4 and A-5........................  Book-Entry                $   100,000     $   1,000
Class A-R.................................................  Definitive                $                     N/A
Class AP..................................................  Definitive                $   100,000     $       1
Class M...................................................  Definitive                $   100,000     $   1,000
</TABLE>
 
- ------------------------
    In  order to aggregate the original  principal balance of such Subclass, one
    certificate will be  issued with  an incremental denomination  of less  than
    that shown.
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                 <C>
                                    BOOK-ENTRY  FORM. The  Offered Certificates,  other than
                                    the Class A-R, Class AP  and Class M Certificates,  will
                                    be  issued in book-entry form, through the facilities of
                                    The Depository Trust Company ("DTC"). These Certificates
                                    are  referred   to  collectively   in  this   Prospectus
                                    Supplement as the "Book-Entry Certificates." An investor
                                    in  a  Subclass  of  Book-Entry  Certificates  will  not
                                    receive  a   physical   certificate   representing   its
                                    ownership  interest  in  such  Book-Entry  Certificates,
                                    except  under  extraordinary  circumstances  which   are
                                    discussed   in  "Description  of   the  Certificates  --
                                    Book-Entry Form" in  the Prospectus.  Instead, DTC  will
                                    effect payments and transfers by means of its electronic
                                    recordkeeping    services,   acting    through   certain
                                    participating organizations. This may result in  certain
                                    delays  in receipt  of distributions by  an investor and
                                    may  restrict  an  investor's  ability  to  pledge   its
                                    securities.  The rights  of investors  in the Book-Entry
                                    Certificates may generally only be exercised through DTC
                                    and its participating organizations. See "Description of
                                    the Certificates  -- Denominations"  and "--  Book-Entry
                                    Form"  in this Prospectus Supplement and "Description of
                                    the Certificates -- Book-Entry Form" in the Prospectus.
                                    DEFINITIVE FORM. The  Class A-R,  Class AP  and Class  M
                                    Certificates   will   each  be   issued   as  Definitive
                                    Certificates. See  "Description of  the Certificates  --
                                    Denominations"   and  "--   Definitive  Form"   in  this
                                    Prospectus   Supplement   and   "Description   of    the
                                    Certificates -- Definitive Form" in the Prospectus.
Mortgage Loans....................  MORTGAGE  LOAN DATA.  The Mortgage Loans,  which are the
                                    source of distributions to holders  of the Series 199  -
                                     Certificates,   will  consist  of  conventional,  fixed
                                    interest rate, monthly  pay, fully  amortizing, one-  to
                                    four-family,  residential  first mortgage  loans, having
                                    original  terms  to  stated  maturity  of  approximately
                                    years,  which may include loans secured by shares issued
                                    by cooperative housing corporations. The Mortgage  Loans
                                    are  expected  to  have the  further  specifications set
                                    forth in  the  following  table and  under  the  heading
                                    "Description  of the Mortgage  Loans" in this Prospectus
                                    Supplement.
</TABLE>
 
                                      S-11
<PAGE>
SELECTED MORTGAGE LOAN DATA(2)
(AS OF THE CUT-OFF DATE)
 
<TABLE>
<S>                                                                  <C>
Cut-Off Date:                                                                         1, 199
Number of Mortgage Loans:
Aggregate Unpaid Principal Balance(1)                                $
Range of Unpaid Principal Balances(1):                               $                  to $
Average Unpaid Principal Balance(1):                                 $
Range of Mortgage Interest Rates:                                                   % to   %
Weighted Average Mortgage Interest Rate(1):                                                %
Range of Remaining Terms to Stated Maturity:                              months to   months
Weighted Average Remaining Term to Stated Maturity(1):                                months
Range of Original Loan-to-Value Ratios(1):                                          % to   %
Weighted Average Original Loan-to-Value Ratio(1):                                          %
Geographic Concentration of Mortgaged Properties
 Securing Mortgage Loans in Excess of 5% of the
 Aggregate Unpaid Principal Balance(1):                              [States]   %
 
Maximum Five-Digit Zip Code Concentration(1):                                              %
</TABLE>
 
- ------------------------
(1) Approximate.
 
(2) Information concerning  the  Discount  Mortgage Loans  is  set  forth  under
    "Description of the Mortgage Loans -- General."
 
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                               <C>
                                  CHANGES  TO  POOL.   A  number  of Mortgage  Loans  may be
                                  removed from the pool, or  a substitution may be made  for
                                  certain  Mortgage Loans, in advance of the issuance of the
                                  Series 199 - Certificates (which  is expected to occur  on
                                  or  about             , 199 ) (the "Closing Date"). Any of
                                  such Mortgage Loans may be excluded from the Trust  Estate
                                  (i) as a result of principal prepayment thereof in full or
                                  (ii)  if, as a  result of delinquencies  or otherwise, the
                                  Seller  otherwise  deems   such  exclusion  necessary   or
                                  desirable.  In either  event, other Mortgage  Loans may be
                                  included in the Trust Estate.  This may result in  changes
                                  in  certain of the  pool characteristics set  forth in the
                                  table above and elsewhere  in this Prospectus  Supplement.
                                  In  the event  that any of  the characteristics  as of the
                                  Cut-Off Date  of the  Mortgage Loans  that constitute  the
                                  Trust Estate on the date of initial issuance of the Series
                                  199  - Certificates  vary materially  from those described
                                  herein, revised information  regarding the Mortgage  Loans
                                  will  be  made  available  to  purchasers  of  the Offered
                                  Certificates on  or  before  such  issuance  date,  and  a
                                  Current  Report  on Form  8-K containing  such information
                                  will be filed with the Securities and Exchange  Commission
                                  within   15  days   following  such   issuance  date.  See
                                  "Description of  the Mortgage  Loans" in  this  Prospectus
                                  Supplement.
                                  Subsequent   to   the   issuance   of   the   Series   199
                                  - Certificates, certain Mortgage Loans may be removed from
                                  the pool through
</TABLE>
 
                                      S-12
<PAGE>
 
<TABLE>
<S>                               <C>
                                  repurchase  or,  under   certain  circumstances,   through
                                  substitution  by  the Seller,  if  the Mortgage  Loans are
                                  discovered to  have  defective documentation  or  if  they
                                  otherwise  do not conform to  the standards established by
                                  the Seller's representations and warranties concerning the
                                  Mortgage Loans. See "Description of the Mortgage Loans  --
                                  Mandatory Repurchase or Substitution of Mortgage Loans" in
                                  this Prospectus Supplement.
Optional Termination............  Norwest   Mortgage   is  entitled,   subject   to  certain
                                  conditions relating  to  the then-remaining  size  of  the
                                  pool,  to purchase  all outstanding Mortgage  Loans in the
                                  pool and thereby effect early retirement of the Series 199
                                  - Certificates. See  "Pooling and  Servicing Agreement  --
                                  Optional Termination" in this Prospectus Supplement.
Underwriting Standards..........  Approximately      % (by Cut-Off  Date Aggregate Principal
                                  Balance) of  the  Mortgage Loans  (the  "Norwest  Mortgage
                                  Underwritten   Loans")   were   generally   originated  in
                                  conformity with Norwest Mortgage's underwriting  standards
                                  applied either by Norwest Mortgage or by Correspondents to
                                  whom  Norwest  Mortgage  had  delegated  all  underwriting
                                  functions. In  certain  instances, exceptions  to  Norwest
                                  Mortgage's underwriting standards may have been granted by
                                  Norwest Mortgage to such Correspondents. See "The Mortgage
                                  Loan  Programs  --  Mortgage  Loan  Underwriting"  in  the
                                  Prospectus. Approximately    % and     % (by Cut-Off  Date
                                  Aggregate  Principal Balance)  of the  Mortgage Loans (the
                                  "Pool Certification  Underwritten Loans")  will have  been
                                  reviewed    by   General   Electric   Mortgage   Insurance
                                  Corporation ("GEMICO")  and  United  Guaranty  Residential
                                  Insurance   Company  ("UGRIC"),  respectively,  to  ensure
                                  compliance with  their  respective credit,  appraisal  and
                                  underwriting    standards.   Neither    the   Series   199
                                  - Certificates  nor  the  Mortgage Loans  are  insured  or
                                  guaranteed  under a mortgage  pool insurance policy issued
                                  by GEMICO or UGRIC.  [The Pool Certification  Underwritten
                                  Loans  were  evaluated  by Norwest  Mortgage  using credit
                                  scoring as described in the Prospectus under "The Mortgage
                                  Loan  Programs  --  Mortgage  Loan  Underwriting  --  Pool
                                  Certification  Underwriting"  and,  based  on  the  credit
                                  scores of such Mortgage Loans, some of such Mortgage Loans
                                  were re-underwritten  by Norwest  Mortgage. The  remaining
                                  approximate       % (by  Cut-Off Date  Aggregate Principal
                                  Balance)  of  the  Mortgage  Loans  (the  "Bulk   Purchase
                                  Underwritten  Loans") were  purchased by  Norwest Mortgage
                                  from one  or  more Correspondents  and  were  underwritten
                                  using  underwriting standards which  may vary from Norwest
                                  Mortgage's  underwriting   standards.   However,   Norwest
                                  Mortgage  has  in  each  case  reviewed  the  underwriting
                                  standards applied and determined  that such variances  did
                                  not depart materially from Norwest Mortgage's underwriting
                                  standards.]  See  "Description  of the  Mortgage  Loans --
                                  Mortgage
</TABLE>
 
                                      S-13
<PAGE>
 
<TABLE>
<S>                               <C>
                                  Underwriting Standards" in this Prospectus Supplement  and
                                  "The Mortgage Loan Programs -- Mortgage Loan Underwriting"
                                  in the Prospectus.
Distributions of Principal and
 Interest.......................  DISTRIBUTIONS  IN  GENERAL.   Distributions on  the Series
                                  199 - Certificates will  be made on the  25th day of  each
                                  month,  or,  if such  day is  not a  business day,  on the
                                  succeeding business day (each such date is referred to  in
                                  this  Prospectus  Supplement  as  a  "Distribution Date"),
                                  commencing in    199 ,  to holders of record at the  close
                                  of  business  on the  last business  day of  the preceding
                                  month. In  the case  of the  Book-Entry Certificates,  the
                                  holder of record will be DTC.
                                  The  amount available for distribution on any Distribution
                                  Date is primarily a function of (i) the amount remitted by
                                  mortgagors of  the  Mortgage  Loans in  payment  of  their
                                  scheduled installments of principal and interest, (ii) the
                                  amount  of prepayments  made by  the mortgagors  and (iii)
                                  proceeds from liquidations of defaulted Mortgage Loans.
                                  On any Distribution Date, holders of the Class A and Class
                                  AP Certificates will  be entitled to  receive all  amounts
                                  due  them  (other than  the Class  AP Deferred  Amount, as
                                  defined on page S-  ) before any distributions are made to
                                  holders of the Class  M and Class  B Certificates on  that
                                  Distribution  Date.  The  Class  AP  Certificates  will be
                                  entitled to  receive  the  Class  AP  Deferred  Amount  as
                                  described  below.  The  amount  that  is  available  to be
                                  distributed on  any Distribution  Date will  be  allocated
                                  first   to  pay  interest  due  holders  of  the  Class  A
                                  Certificates  and  then,  if  the  amount  available   for
                                  distribution exceeds the amount of interest due holders of
                                  the  Class  A  Certificates,  to  reduce  the  outstanding
                                  principal  balances   of  the   Class  A   and  Class   AP
                                  Certificates. The likelihood that a holder of a particular
                                  Subclass  of Class  A Certificates  will receive principal
                                  distributions on any Distribution Date will depend on  the
                                  priority  in which such Subclass  is entitled to principal
                                  distributions, as set forth under the heading "Description
                                  of the Certificates  -- Principal (Including  Prepayments)
                                  --  Allocation  of  Amount  to  be  Distributed"  and  "--
                                  Calculation of Amount  to be  Distributed to  the Class  A
                                  Certificates" in this Prospectus Supplement.
                                  After  all  amounts  due  on  the  Class  A  and  Class AP
                                  Certificates (other  than the  Class AP  Deferred  Amount)
                                  have  been paid, the amount remaining will be distributed,
                                  in the following order, to  (i) pay any Class AP  Deferred
                                  Amount  first  from  amounts  otherwise  distributable  as
                                  principal on  the Subclasses  of Class  B Certificates  in
                                  reverse   numerical  order   (I.E.,  first   from  amounts
                                  otherwise distributable  as  principal on  the  Class  B-5
                                  Certificates, then from amounts otherwise distributable as
                                  principal  on the Class B-4  Certificates, and so on), and
                                  then from amounts otherwise distributable as principal  on
                                  the  Class M  Certificates, (ii)  pay interest  due to the
                                  holders of the Class  M Certificates, (iii) pay  principal
                                  due to the holders of the Class M
</TABLE>
 
                                      S-14
<PAGE>
 
<TABLE>
<S>                               <C>
                                  Certificates  less any  amounts used  to pay  the Class AP
                                  Deferred Amount and (iv) pay with respect to each Subclass
                                  of Class B  Certificates sequentially  in numerical  order
                                  interest due and then principal due to the holders of each
                                  such   Subclass  of   Class  B   Certificates  before  any
                                  Subclasses of Class B  Certificates with higher  numerical
                                  designations  receive any payments  in respect of interest
                                  or principal, provided that the principal due any Subclass
                                  will be reduced  by any amount  used to pay  the Class  AP
                                  Deferred  Amount. See "Description  of the Certificates --
                                  Distributions" in this Prospectus Supplement.
                                  If any mortgagor is delinquent in the payment of principal
                                  or  interest  on  a  Mortgage  Loan  in  any  month,   the
                                  respective  Servicer is  required to  advance such payment
                                  unless such Servicer determines that the delinquent amount
                                  will not be  recoverable by such  Servicer from  insurance
                                  proceeds,  liquidation proceeds or other recoveries on the
                                  related Mortgage Loan. The Master Servicer or Trustee may,
                                  in  certain  circumstances,  be  required  to  make   such
                                  advances  upon a  Servicer's default on  its obligation to
                                  advance. See "Description of the Certificates --  Periodic
                                  Advances" in this Prospectus Supplement.
                                  INTEREST  DISTRIBUTIONS.  The amount  of interest to which
                                  holders of each Class or Subclass of Offered Certificates,
                                  other than  the Class  AP Certificates,  will be  entitled
                                  each   month  is  calculated   based  on  the  outstanding
                                  principal balance of  such Class  or Subclass,  as of  the
                                  related Distribution Date. Interest will accrue each month
                                  on  each such Class or Subclass according to the following
                                  formula: 1/12th of the Pass-Through Rate for such Class or
                                  Subclass multiplied by  the outstanding principal  balance
                                  of  such Class or Subclass  as of the related Distribution
                                  Date. Holders of  the Class  AP Certificates  will not  be
                                  entitled   to  receive  distributions   of  interest.  The
                                  "Pass-Through Rate" for each Class and Subclass of Offered
                                  Certificates is the percentage set  forth on the cover  of
                                  this Prospectus Supplement.
                                  When  mortgagors  prepay  principal or  when  principal is
                                  recovered through  foreclosures or  other liquidations  of
                                  defaulted  Mortgage Loans, a full month's interest for the
                                  month of payment or recovery may not be paid or recovered,
                                  resulting   in   interest   shortfalls.   These   interest
                                  shortfalls   are  variously  handled,   depending  on  the
                                  Servicer and  the nature  of the  event resulting  in  the
                                  interest shortfall.
                                  In   the  case  of  principal   prepayments  IN  FULL  the
                                  respective Servicer will be  obligated to cover  resulting
                                  interest   shortfalls  up  to   the  aggregate  amount  of
                                  Servicing Fees  payable  thereunder on  such  Distribution
                                  Date   to  the   related  Servicer.   Interest  shortfalls
                                  resulting from  partial  principal  prepayments  occurring
                                  with  respect  to Mortgage  Loans  will not  be  offset by
                                  Servicing Fees, but  instead will  be borne  first by  the
                                  Class B Certificates and then by the Class A Certificates.
                                  See  "Description of the  Certificates -- Subordination of
                                  the Class B Certificates"  in this Prospectus  Supplement.
                                  Shortfalls in
</TABLE>
 
                                      S-15
<PAGE>
 
<TABLE>
<S>                               <C>
                                  collections   of   interest   resulting   from   principal
                                  prepayments  in  full,  to  the  extent  they  exceed  the
                                  aggregate amount of Servicing Fees payable with respect to
                                  a    Distribution   Date    to   the    related   Servicer
                                  ("Non-Supported Interest Shortfalls"),  will be  allocated
                                  pro   rata  among  the   Classes  of  the   Series  199  -
                                   Certificates (other than the Class AP Certificates) based
                                  on their then-outstanding principal  balances and will  be
                                  allocated  pro  rata  among  the  Subclasses  of  Class  A
                                  Certificates based on interest accrued.
                                  In  addition,  the  amount  of  interest  required  to  be
                                  distributed  to holders  of the Series  199 - Certificates
                                  will be reduced  by a  portion of  certain Special  Hazard
                                  Losses, Fraud Losses and Bankruptcy Losses attributable to
                                  interest.  See "--  Credit Enhancement  -- Extent  of Loss
                                  Coverage" below and  "Description of  the Certificates  --
                                  Interest" in this Prospectus Supplement.
                                  To  the extent that the  amount available for distribution
                                  on any  Distribution Date  is insufficient  to permit  the
                                  distribution  of the applicable amount of accrued interest
                                  on the  Class A  Certificates  (net of  any  Non-Supported
                                  Interest  Shortfall, other shortfalls and losses allocable
                                  to the  Class  A  Certificates as  described  above),  the
                                  amount  of interest  to be  distributed will  be allocated
                                  among the outstanding Subclasses  of Class A  Certificates
                                  pro  rata in accordance with their respective entitlements
                                  to interest and the amount of any deficiency will be added
                                  to the amount  of interest that  the Class A  Certificates
                                  are  entitled to receive on subsequent Distribution Dates.
                                  No interest will accrue on such deficiencies.
                                  To the extent that  the amount available for  distribution
                                  on any Distribution Date, after the payment of all amounts
                                  due  the Class A and Class AP Certificates (other than any
                                  Class AP Deferred Amount)  has been made, is  insufficient
                                  to  permit distribution in full of accrued interest on the
                                  Class M Certificates  (net of  any Non-Supported  Interest
                                  Shortfall,  other shortfalls  and losses  allocable to the
                                  Class M Certificates  as described above),  the amount  of
                                  any  deficiency will  be added  to the  amount of interest
                                  that the Class M Certificates  are entitled to receive  on
                                  subsequent  Distribution Dates. No interest will accrue on
                                  such deficiencies.
                                  Interest  on  the  Class   A  Certificates  and  Class   M
                                  Certificates  will be calculated on the basis of a 360-day
                                  year consisting of twelve 30-day months.
                                  See "Description of the Certificates -- Interest" in  this
                                  Prospectus Supplement.
                                  PRINCIPAL   DISTRIBUTIONS.     The  aggregate   amount  of
                                  principal to which the holders of the Class A Certificates
                                  are entitled  each  month  will equal  the  sum  for  each
                                  Mortgage  Loan  of the  product of  (a) the  Classes A/M/B
                                  Fraction applicable to such Mortgage Loan and (b) the  sum
                                  of   (i)  a  percentage  (the  "Class  A  Percentage")  of
                                  scheduled payments of principal on each Mortgage Loan  and
                                  (ii)    a    percentage   (the    "Class    A   Prepayment
</TABLE>
 
                                      S-16
<PAGE>
 
<TABLE>
<S>                               <C>
                                  Percentage") of certain unscheduled payments of  principal
                                  on  each Mortgage Loan. The  "Classes A/M/B Fraction" with
                                  respect to any Mortgage Loan will equal the lesser of  (a)
                                  1.0  and  (b)  the  Net Mortgage  Interest  Rate  for such
                                  Mortgage Loan divided by    %. The Class A Percentage will
                                  be equal,  on each  Distribution Date,  to the  percentage
                                  corresponding to the fraction that represents the ratio of
                                  the  then-outstanding  principal  balance of  the  Class A
                                  Certificates to the Pool Balance (Classes A/M/B  Portion).
                                  The  Class A  Prepayment Percentage  will be  equal to the
                                  percentage described  in the  preceding sentence  plus  an
                                  additional  amount equal to a  percentage of the principal
                                  otherwise distributable to the holders of the Subordinated
                                  Certificates. As  a  result,  the  percentage  of  certain
                                  unscheduled  principal payments otherwise distributable to
                                  the holders  of  the  Subordinated  Certificates  that  is
                                  instead  distributable  to  the  holders  of  the  Class A
                                  Certificates will be equal to  100% during the first  five
                                  years  beginning  on  the  first  Distribution  Date  and,
                                  subject to meeting certain conditions, will likely decline
                                  during the subsequent four  years, as described under  the
                                  heading  "Description  of  the  Certificates  -- Principal
                                  (Including Prepayments)  -- Calculation  of Amount  to  be
                                  Distributed   to  the   Class  A   Certificates"  in  this
                                  Prospectus Supplement, until the ninth anniversary of  the
                                  first  Distribution  Date and  thereafter  it is  equal to
                                  zero.  On   each  Distribution   Date,  the   Subordinated
                                  Certificates  will collectively be entitled to receive the
                                  percentages  of  the  scheduled  and  certain  unscheduled
                                  payments of principal on the portion of each Mortgage Loan
                                  representing  the Classes A/M/B  Fraction of such Mortgage
                                  Loan equal,  in each  case, to  100% less  the  applicable
                                  percentage for the Class A Certificates described above.
                                  The  aggregate amount of principal to which holders of the
                                  Class AP Certificates are  entitled each month will  equal
                                  the  sum for each Discount Mortgage Loan of the product of
                                  (a) the Class AP Fraction  for such Mortgage Loan and  (b)
                                  the  sum  of  (i)  scheduled  principal  payments  on such
                                  Mortgage Loan  and (ii)  certain unscheduled  payments  of
                                  principal on such Mortgage Loan. In addition, the Class AP
                                  Certificates  will be  entitled to  receive any previously
                                  unpaid amounts  of principal  to which  such  Certificates
                                  were  entitled on prior Distribution  Dates as part of the
                                  Class AP  Deferred Amount.  The "Class  AP Fraction"  with
                                  respect  to  any  Discount Mortgage  Loan  will  equal the
                                  difference between 1.0 and the Classes A/M/B Fraction  for
                                  such  Discount Mortgage  Loan. The Class  AP Fraction with
                                  respect to  each  Mortgage Loan  that  is not  a  Discount
                                  Mortgage  Loan will be equal  to zero. See "Description of
                                  the Certificates -- Principal (Including Prepayments)"  in
                                  this Prospectus Supplement.
                                  The  holders  of the  Class AP  Certificates will  also be
                                  entitled each month  to an  amount equal to  the Class  AP
                                  Deferred Amount. The Class AP Deferred Amount will be paid
                                  to  holders of the Class AP Certificates only from amounts
                                  otherwise
</TABLE>
 
                                      S-17
<PAGE>
 
<TABLE>
<S>                               <C>
                                  distributable   as   principal    to   the    Subordinated
                                  Certificates.  The Class  AP Deferred Amount  will be paid
                                  first from amounts otherwise distributable as principal to
                                  the  Subclasses  of  Class   B  Certificates  in   reverse
                                  numerical   order   and   then   from   amounts  otherwise
                                  distributable as principal to the Class M Certificates. No
                                  interest will accrue on any Class AP Deferred Amount.
                                  Except  as   described   below   under   "--   Effect   of
                                  Subordination  Level on Principal  Distributions," on each
                                  Distribution  Date,  the  Class  M  Certificates  will  be
                                  entitled  to a  portion of scheduled  payments and certain
                                  unscheduled payments of  principal on  the Mortgage  Loans
                                  allocable to the Subordinated Certificates that represents
                                  the ratio of the then-outstanding principal balance of the
                                  Class  M  Certificates to  the  then-outstanding principal
                                  balance of the Subordinated Certificates.
                                  The amount  that  is  available for  distribution  to  the
                                  holders  of the Class  A and Class  AP Certificates on any
                                  Distribution Date as  a distribution  of principal  (other
                                  than  any Class AP Deferred Amount) is equal to the amount
                                  remaining  after   deducting   the  amount   of   interest
                                  distributable  on the Class A  Certificates from the total
                                  amount collected that  is available to  be distributed  to
                                  holders   of  the  Series  199   -  Certificates  on  such
                                  Distribution Date. Principal  will be  distributed to  the
                                  holders of the Class A Certificates in accordance with the
                                  payment    priorities   described    under   the   heading
                                  "Description of the  Certificates -- Principal  (Including
                                  Prepayments) -- Allocation of Amount to be Distributed" in
                                  this Prospectus Supplement.
                                  The  amount  that  is available  for  distribution  to the
                                  holders of the  Class M Certificates  on any  Distribution
                                  Date   as  a  distribution  of  principal  is  the  amount
                                  remaining after all  interest and principal  distributions
                                  due   on   the   Class  A   Certificates,   all  principal
                                  distributions on the Class AP Certificates (including  any
                                  Class  AP Deferred Amount) and interest due on the Class M
                                  Certificates have  been  deducted from  the  total  amount
                                  collected  that is available to  be distributed to holders
                                  of the Series 199 - Certificates.
                                  EFFECT OF SUBORDINATION LEVEL ON PRINCIPAL
                                  DISTRIBUTIONS.  In order  to preserve the availability  of
                                  the  original  subordination level  as  protection against
                                  losses  on  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, some or  all
                                  of  the Subclasses  of Class B  Certificates, as described
                                  below, may not be  entitled to distributions of  principal
                                  on certain Distribution Dates and the principal balance of
                                  such  Subclasses will  not be  considered for  purposes of
                                  allocation   of   principal    among   the    Subordinated
                                  Certificates.
                                  In  the  case  of  the Class  M  Certificates,  if  on any
                                  Distribution Date the percentage obtained by dividing  the
                                  outstanding  principal balance of the Class B Certificates
                                  by the sum  of the outstanding  principal balances of  the
                                  Class  A, Class  M and Class  B Certificates  is less than
                                  such percentage  was  upon  the initial  issuance  of  the
                                  Series    199   -   Certificates,   then   the   Class   B
</TABLE>
 
                                      S-18
<PAGE>
 
<TABLE>
<S>                               <C>
                                  Certificates will  not  be entitled  to  distributions  of
                                  principal  on  such  Distribution  Date  and  the  Class M
                                  Certificates will  be  entitled to  all  distributions  of
                                  principal  allocable to the  Subordinated Certificates for
                                  such Distribution Date.
                                  In the case  of the  Class B-1,  Class B-2,  Class B-3  or
                                  Class  B-4 Certificates,  if on any  Distribution Date the
                                  percentage  obtained  by  dividing  the   then-outstanding
                                  principal   balances   of  the   Subclasses  of   Class  B
                                  Certificates with higher numerical designations by the sum
                                  of the then-outstanding principal balances of the Class A,
                                  Class M  and  Class  B  Certificates  is  less  than  such
                                  percentage  at  the time  of the  initial issuance  of the
                                  Series 199 -Certificates, then such Subclasses of Class  B
                                  Certificates  with higher numerical  designations will not
                                  be  entitled  to  distributions   of  principal  and   the
                                  principal  balances of  such Subclasses will  not be taken
                                  into account for purposes  of calculating the portions  of
                                  scheduled  and unscheduled principal payments allocable to
                                  the Class M Certificates and to the Subclasses of Class  B
                                  Certificates with lower numerical designations.
                                  In  any  such case,  the  Class M  Certificates  and those
                                  Subclasses of Class  B Certificates  with lower  numerical
                                  designation  will receive  a greater  portion of scheduled
                                  and unscheduled  payments  of principal  on  the  Mortgage
                                  Loans  allocable to the Subordinated Certificates than the
                                  Class M  Certificates  and  those Subclasses  of  Class  B
                                  Certificates  with lower numerical  designation would have
                                  received had all Subclasses  of Class B Certificates  been
                                  entitled  to their portion of such principal payments. See
                                  "Description of the  Certificates -- Principal  (Including
                                  Prepayments) -- Calculation of Amount to be Distributed to
                                  the Class M Certificates" in this Prospectus Supplement.
Credit Enhancement..............  DESCRIPTION  OF  "SHIFTING-INTEREST"  SUBORDINATION.   The
                                  rights of  the  holders of  the  Class M  Certificates  to
                                  receive  distributions will be  subordinated to the rights
                                  of the  holders  of  the Senior  Certificates  to  receive
                                  distributions,  to the extent described herein. The rights
                                  of the  holders of  the Class  B Certificates  to  receive
                                  distributions  will be  subordinated to the  rights of the
                                  holders  of  the  Senior  Certificates  and  the  Class  M
                                  Certificates  to  receive  distributions,  to  the  extent
                                  described herein.  This subordination  provides a  certain
                                  amount   of  protection  to  the  holders  of  the  Senior
                                  Certificates (to the  extent of the  subordination of  the
                                  Class  M  and  Class  B  Certificates)  and  the  Class  M
                                  Certificates (to the  extent of the  subordination of  the
                                  Class  B Certificates)  against delays  in the  receipt of
                                  scheduled payments of interest  and principal and  against
                                  losses   associated  with  the  liquidation  of  defaulted
                                  Mortgage Loans  and  certain  losses  resulting  from  the
                                  bankruptcy of a mortgagor.
                                  In  general, the  protection afforded  the holders  of the
                                  Senior Certificates by means of this subordination will be
                                  effected in two ways: (i) by the preferential right of the
                                  holders of the  Senior Certificates to  receive, prior  to
                                  any distribution being
</TABLE>
 
                                      S-19
<PAGE>
 
<TABLE>
<S>                               <C>
                                  made  on any Distribution  Date in respect  of the Class M
                                  and Class  B Certificates,  the  amounts of  interest  and
                                  principal  due the holders of the Class A Certificates and
                                  the amount of principal  due the holders  of the Class  AP
                                  Certificates  on such date and, if necessary, by the right
                                  of such  holders to  receive future  distributions on  the
                                  Mortgage Loans that would otherwise have been allocated to
                                  the  holders of the  Class M and  Class B Certificates and
                                  (ii) by  the  allocation  to  the  Class  M  and  Class  B
                                  Certificates,  until  their respective  principal balances
                                  are reduced to zero, of certain losses resulting from  the
                                  liquidation  of defaulted Mortgage Loans or the bankruptcy
                                  of mortgagors prior  to the allocation  of such losses  to
                                  the   Senior   Certificates.  See   "Description   of  the
                                  Certificates  --   Distributions"   in   this   Prospectus
                                  Supplement.
                                  In  general, the  protection afforded  the holders  of the
                                  Class M Certificates by  means of this subordination  will
                                  also  be  effected in  two ways:  (i) by  the preferential
                                  right of  the  holders  of the  Class  M  Certificates  to
                                  receive,  prior  to  any distribution  being  made  on any
                                  Distribution Date in respect of the Class B  Certificates,
                                  the  amounts of interest and  principal due the holders of
                                  the Class M Certificates on  such date and, if  necessary,
                                  by   the  right   of  such   holders  to   receive  future
                                  distributions on the Mortgage  Loans that would  otherwise
                                  have  been  allocated  to  the  holders  of  the  Class  B
                                  Certificates and (ii)  by the  allocation to  the Class  B
                                  Certificates,  until  their  principal  balance  has  been
                                  reduced to  zero, of  certain  losses resulting  from  the
                                  liquidation  of defaulted Mortgage Loans or the bankruptcy
                                  of mortgagors prior  to the allocation  of such losses  to
                                  the   Class  M  Certificates.   See  "Description  of  the
                                  Certificates  --   Distributions"   in   this   Prospectus
                                  Supplement.
                                  In  addition, in order to increase the period during which
                                  the  principal  balances  of  the  Class  M  and  Class  B
                                  Certificates remain available as credit enhancement to the
                                  Senior   Certificates,   a   disproportionate   amount  of
                                  prepayments  and  certain   unscheduled  recoveries   with
                                  respect  to the  Mortgage Loans  will be  allocated to the
                                  Class A Certificates.  This allocation has  the effect  of
                                  accelerating  the amortization of the Class A Certificates
                                  while,  in  the  absence  of  losses  in  respect  of  the
                                  liquidation   of  defaulted   Mortgage  Loans   or  losses
                                  resulting from  the bankruptcy  of mortgagors,  increasing
                                  the  respective  percentage  interests  in  the  principal
                                  balance of the Mortgage Loans evidenced by the Class M and
                                  Class B Certificates.
                                  EXTENT OF  LOSS COVERAGE.    Realized losses  on  Mortgage
                                  Loans,  other  than losses  that  are (i)  attributable to
                                  "special hazards"  not insured  against under  a  standard
                                  hazard   insurance  policy,  (ii)  incurred  on  defaulted
                                  Mortgage  Loans  as  to  which  there  was  fraud  in  the
                                  origination  of such Mortgage  Loans or (iii) attributable
                                  to certain  actions which  may be  taken by  a  bankruptcy
                                  court  in  connection with  a  Mortgage Loan,  including a
                                  reduction by a bankruptcy  court of the principal  balance
                                  of or the interest rate on a Mortgage Loan or an extension
                                  of  its  maturity, will  not  be allocated  to  the Senior
</TABLE>
 
                                      S-20
<PAGE>
 
<TABLE>
<S>                               <C>
                                  Certificates  until  the  date  on  which  the   aggregate
                                  principal  balance of the Class M and Class B Certificates
                                  (which aggregate  balance  is  expected  initially  to  be
                                  approximately  $      )  has been reduced to zero and will
                                  not be allocated  to the  Class M  Certificates until  the
                                  date on which the aggregate principal balance of the Class
                                  B   Certificates  (which  aggregate  balance  is  expected
                                  initially to be approximately $      ) has been reduced to
                                  zero. Such  losses  will  be  allocated  first  among  the
                                  Subclasses  of Class B  Certificates, in reverse numerical
                                  order (that is, to  the Class B-5,  Class B-4, Class  B-3,
                                  Class B-2 and Class B-1 Certificates, respectively).
                                  With  respect to  any Distribution Date  subsequent to the
                                  first Distribution Date,  the availability  of the  credit
                                  enhancement   provided  by   the  Class  M   and  Class  B
                                  Certificates will be  affected by the  prior reduction  of
                                  the principal balance of the Class M Certificates and such
                                  Subclasses  of  Class  B  Certificates.  Reduction  of the
                                  principal balance of the Class M and Class B  Certificates
                                  will result from (i) the prior allocation of losses due to
                                  the  liquidation  of defaulted  Mortgage  Loans, including
                                  losses due to special hazards  and fraud losses up to  the
                                  respective  limits  referred  to  below,  (ii)  the  prior
                                  allocation of bankruptcy losses  up to the limit  referred
                                  to   below  and  (iii)  the  prior  receipt  of  principal
                                  distributions by the holders of such Certificates.
                                  As  of   the  date   of  issuance   of  the   Series   199
                                  -  Certificates,  the  amount  of  losses  attributable to
                                  special  hazards,  fraud  and  bankruptcy  that  will   be
                                  absorbed solely by the holders of the Class B Certificates
                                  and then solely by the holders of the Class M Certificates
                                  will  be approximately    %,     % and    %, respectively,
                                  of the  Cut-Off Date  Aggregate Principal  Balance of  the
                                  Mortgage  Loans (approximately  $     , $      and $     ,
                                  respectively). If losses due to special hazards, fraud  or
                                  bankruptcy  exceed  any  of  such  amounts  prior  to  the
                                  principal balances of the Class M and Class B Certificates
                                  being reduced to  zero, (a) the  principal portion of  any
                                  such excess losses with respect to the Mortgage Loans will
                                  generally  be shared pro rata by  (i) the Class A, Class M
                                  and Subclasses of  Class B  Certificates and  (ii) to  the
                                  extent such losses arise with respect to Discount Mortgage
                                  Loans,  the Class AP Certificates,  in each case according
                                  to their respective interests  in such Mortgage Loans  and
                                  (b)  the interest portion of  any such losses with respect
                                  to the Mortgage Loans will generally be shared pro rata by
                                  the Class A,  Class M  and Class B  Certificates based  on
                                  their  respective interest accrual  amounts. Under certain
                                  circumstances, the limits set  forth above may be  reduced
                                  as  described  under "Description  of the  Certificates --
                                  Subordination of  Class  M  and Class  B  Certificates  --
                                  Allocation of Losses" in this Prospectus Supplement.
                                  After  the principal balances  of the Class  M and Class B
                                  Certificates have  been  reduced to  zero,  the  principal
                                  portion of all losses (other than the portion attributable
                                  to the Class AP Certificates, if any) will be allocated to
                                  the  Class A Certificates. To the extent such losses arise
                                  with respect to Discount
</TABLE>
 
                                      S-21
<PAGE>
 
<TABLE>
<S>                               <C>
                                  Mortgage Loans,  such losses  will be  shared between  the
                                  Class  A  and Class  AP  Certificates, according  to their
                                  respective interests in such Mortgage Loans. The  interest
                                  portion  of  such  losses will  be  borne by  the  Class A
                                  Certificates. Any losses borne by the Class A Certificates
                                  will be  shared pro  rata  by the  Subclasses of  Class  A
                                  Certificates  based  on  their  then-outstanding principal
                                  balances with  respect to  the principal  portion of  such
                                  losses,  and based on their accrued interest, with respect
                                  to the interest portion  of such losses. See  "Description
                                  of  the Certificates -- Interest" and "-- Subordination of
                                  Class M and Class B Certificates -- Allocation of  Losses"
                                  in this Prospectus Supplement.
                                  THE  YIELD TO MATURITY ON THE CLASS M CERTIFICATES WILL BE
                                  MORE SENSITIVE  TO  LOSSES  DUE  TO  LIQUIDATIONS  OF  THE
                                  MORTGAGE  LOANS (AND  THE TIMING THEREOF)  THAN THE SENIOR
                                  CERTIFICATES, IN THE  EVENT THAT  THE AGGREGATE  PRINCIPAL
                                  BALANCE  OF THE CLASS  B CERTIFICATES HAS  BEEN REDUCED TO
                                  ZERO.
                                  See "Description of the  Certificates -- Subordination  of
                                  Class  M  and  Class B  Certificates"  in  this Prospectus
                                  Supplement.
Effects of Prepayments on
 Investment Expectations........  The actual rate of prepayment of principal on the Mortgage
                                  Loans cannot be predicted.  The investment performance  of
                                  the Offered Certificates may vary materially and adversely
                                  from  the  investment  expectations  of  investors  due to
                                  prepayments on the  Mortgage Loans being  higher or  lower
                                  than  anticipated by  investors. In addition,  the Class A
                                  Certificates in the  aggregate will be  more sensitive  to
                                  prepayments  on the  Mortgage Loans  than the Subordinated
                                  Certificates due  to  the disproportionate  allocation  of
                                  such  prepayments to investors in the Class A Certificates
                                  then entitled to principal  distributions during the  nine
                                  years beginning on the first Distribution Date. The actual
                                  yield  to the holder of an  Offered Certificate may not be
                                  equal to the yield anticipated at the time of purchase  of
                                  the  Certificate or, notwithstanding that the actual yield
                                  is equal to the yield anticipated at that time, the  total
                                  return  on  investment  expected by  the  investor  or the
                                  expected weighted average life of the Certificate may  not
                                  be  realized.  These  effects  are  summarized  below.  IN
                                  DECIDING WHETHER TO PURCHASE ANY OFFERED CERTIFICATES,  AN
                                  INVESTOR  SHOULD MAKE  AN INDEPENDENT  DECISION AS  TO THE
                                  APPROPRIATE PREPAYMENT ASSUMPTIONS TO BE USED.
                                  YIELD.  If an investor purchases an Offered Certificate at
                                  an amount equal to its unpaid principal balance (that  is,
                                  at  "par"), the effective yield to that investor (assuming
                                  that there  are no  interest shortfalls  and assuming  the
                                  full  return  of the  investor's invested  principal) will
                                  approximate the Pass-Through Rate on that Certificate.  If
                                  an  investor pays less  or more than  the unpaid principal
                                  balance of  an  Offered  Certificate (that  is,  buys  the
                                  Certificate  at a "discount"  or "premium," respectively),
                                  then, based on the assumptions set forth in the  preceding
                                  sentence,  the  effective yield  to  the investor  will be
                                  higher or lower,  respectively, than  the stated  interest
                                  rate on the Certificate,
</TABLE>
 
                                      S-22
<PAGE>
 
<TABLE>
<S>                               <C>
                                  because  such discount  or premium will  be amortized over
                                  the life of the Certificate.  Any deviation in the  actual
                                  rate  of prepayments on  the Mortgage Loans  from the rate
                                  assumed by the  investor will  affect the  period of  time
                                  over  which, or the rate at which, the discount or premium
                                  will be  amortized  and,  consequently,  will  change  the
                                  investor's  actual yield from that anticipated. The timing
                                  of receipt of prepayments  may also affect the  investor's
                                  actual  yield. The yield experienced by an investor in the
                                  Class AP  Certificates, which  do  not bear  interest,  is
                                  solely  a function of the price paid by such investor, the
                                  rate and  timing of  principal  payments on  the  Discount
                                  Mortgage  Loans  and  losses  incurred  on  and  after the
                                  Cross-Over Date. The particular  sensitivity of the  Class
                                  AP  Certificates is  displayed in a  table appearing under
                                  the heading "Prepayment and Yield Considerations" in  this
                                  Prospectus  Supplement.  AN  INVESTOR  THAT  PURCHASES ANY
                                  OFFERED CERTIFICATES AT A DISCOUNT, PARTICULARLY THE CLASS
                                  AP CERTIFICATES, SHOULD  CONSIDER THE RISK  THAT A  SLOWER
                                  THAN   ANTICIPATED  RATE  OF  PRINCIPAL  PAYMENTS  ON  THE
                                  MORTGAGE  LOANS,  OR   IN  THE  CASE   OF  THE  CLASS   AP
                                  CERTIFICATES,  ON THE DISCOUNT MORTGAGE LOANS, WILL RESULT
                                  IN AN  ACTUAL YIELD  THAT IS  LOWER THAN  SUCH  INVESTOR'S
                                  EXPECTED  YIELD.  AN INVESTOR  THAT PURCHASES  ANY OFFERED
                                  CERTIFICATES AT A PREMIUM SHOULD CONSIDER THE RISK THAT  A
                                  FASTER  THAN ANTICIPATED RATE OF PRINCIPAL PAYMENTS ON THE
                                  MORTGAGE LOANS  WILL RESULT  IN AN  ACTUAL YIELD  THAT  IS
                                  LOWER  THAN  SUCH  INVESTOR'S  EXPECTED  YIELD  AND SHOULD
                                  CONSIDER THE RISK THAT A RAPID RATE OF PRINCIPAL  PAYMENTS
                                  ON  THE MORTGAGE LOANS COULD RESULT IN THE FAILURE OF SUCH
                                  INVESTOR TO  FULLY  RECOVER ITS  INITIAL  INVESTMENT.  THE
                                  YIELD  ON THE CLASS AP  CERTIFICATES WILL BE INFLUENCED BY
                                  PRINCIPAL PAYMENTS  SOLELY WITH  RESPECT TO  THE  DISCOUNT
                                  MORTGAGE LOANS.
                                  REINVESTMENT  RISK.    As  stated  above,  if  an  Offered
                                  Certificate is purchased at an amount equal to its  unpaid
                                  principal balance (that is, at "par"), fluctuations in the
                                  rate  of  distributions  of principal  will  generally not
                                  affect the yield to maturity of that Certificate. However,
                                  the total return on  any investor's investment,  including
                                  an  investor who purchases at par,  will be reduced to the
                                  extent  that  principal  distributions  received  on   its
                                  Certificate  cannot be reinvested at a rate as high as the
                                  stated interest rate of the Certificate or, in the case of
                                  the Class AP  Certificates, the expected  yield, which  is
                                  based  on the price  paid by the investor  and the rate of
                                  prepayments anticipated by such investor. Investors in the
                                  Offered Certificates should consider  the risk that  rapid
                                  rates  of prepayments  on the Mortgage  Loans may coincide
                                  with periods  of  low prevailing  market  interest  rates.
                                  During  periods of  low prevailing  market interest rates,
                                  mortgagors may be expected to prepay or refinance Mortgage
                                  Loans that carry interest rates significantly higher  than
                                  then-current    interest   rates   for   mortgage   loans.
                                  Consequently,  the  amount   of  principal   distributions
                                  available  to  an investor  for  reinvestment at  such low
                                  prevailing  interest  rates   may  be  relatively   large.
                                  Conversely,  slow  rates  of prepayments  on  the Mortgage
                                  Loans may coincide with periods of high prevailing  market
                                  interest  rates. During  such periods,  it is  less likely
                                  that
</TABLE>
 
                                      S-23
<PAGE>
 
<TABLE>
<S>                               <C>
                                  mortgagors will  elect  to prepay  or  refinance  Mortgage
                                  Loans    and,   therefore,   the   amount   of   principal
                                  distributions available to an investor for reinvestment at
                                  such high  prevailing  interest rates  may  be  relatively
                                  small.
                                  WEIGHTED  AVERAGE LIFE VOLATILITY.   One indication of the
                                  impact of varying prepayment speeds  on a security is  the
                                  change in its weighted average life. The "weighted average
                                  life"  of an Offered Certificate  is the average amount of
                                  time that will elapse between the date of issuance of  the
                                  Certificate and the date on which each dollar in reduction
                                  of the principal balance of the Certificate is distributed
                                  to the investor. Low rates of prepayment may result in the
                                  extension  of the weighted average  life of a Certificate;
                                  high rates,  in the  shortening of  such weighted  average
                                  life.  In  general,  if  the weighted  average  life  of a
                                  Certificate purchased  at  par  is  extended  beyond  that
                                  initially anticipated, such Certificate's market value may
                                  be adversely affected even though the yield to maturity on
                                  the  Certificate is unaffected.  The weighted average life
                                  of the Class  AP Certificates  will be  determined by  the
                                  rate  of  prepayment of  the  Discount Mortgage  Loans and
                                  generally will not be affected  by the rate of  prepayment
                                  on other Mortgage Loans.
                                  THE  WEIGHTED AVERAGE  LIFE OF  THE COMPANION CERTIFICATES
                                  WILL BE HIGHLY SENSITIVE TO THE RATE OF PREPAYMENTS ON THE
                                  MORTGAGE LOANS  AT RATES  AT OR  ABOVE CERTAIN  PREPAYMENT
                                  LEVELS  BECAUSE  PAYMENTS  OF PRINCIPAL  ALLOCATED  TO THE
                                  CLASS A CERTIFICATES IN  EXCESS OF SUCH PREPAYMENT  LEVELS
                                  WILL  BE PAID TO THE HOLDERS OF THE COMPANION CERTIFICATES
                                  WHILE SUCH CERTIFICATES REMAIN OUTSTANDING PRIOR TO  BEING
                                  PAID  TO THE HOLDERS  OF THE TAC  CERTIFICATES AND THE PAC
                                  CERTIFICATES.
                                  The weighted average  lives of  the Offered  Certificates,
                                  under  various prepayment scenarios,  are displayed in the
                                  tables appearing under the  heading "Prepayment and  Yield
                                  Considerations" in this Prospectus Supplement.
                                  See   "Description  of   the  Certificates   --  Principal
                                  (Including Prepayments)  --  Allocation of  Amount  to  be
                                  Distributed"  and "-- Principal Payment Characteristics of
                                  the  PAC  Certificates,  the  TAC  Certificates  and   the
                                  Companion Certificates" in this Prospectus Supplement.
Federal Income Tax Status.......  An  election will be  made to treat the  Trust Estate as a
                                  real estate mortgage investment conduit (the "REMIC")  for
                                  federal  income tax  purposes. The  Class A-1,  Class A-2,
                                  Class A-3, Class A-4 and Class A-5 Certificates, the Class
                                  AP Certificates, the Class  M Certificates, and the  Class
                                  B-1,  Class  B-2,  Class  B-3,  Class  B-4  and  Class B-5
                                  Certificates will  constitute "regular  interests" in  the
                                  REMIC  and the  Class A-R Certificate  will constitute the
                                  "residual interest" in the REMIC.
                                  The Regular  Certificates  (as defined  herein)  generally
                                  will  be treated as newly  originated debt instruments for
                                  federal income  tax  purposes. Beneficial  owners  of  the
                                  Regular  Certificates  will be  required to  report income
                                  thereon  in  accordance   with  the   accrual  method   of
                                  accounting.   The   Class         Certificates   will   be
</TABLE>
 
                                      S-24
<PAGE>
 
<TABLE>
<S>                               <C>
                                  issued with original issue discount in an amount equal  to
                                  the  excess of the initial  principal balance thereof over
                                  their issue  price.  It  is  anticipated  that  the  Class
                                  Certificates  will be issued  with original issue discount
                                  in  an  amount  equal  to  the  excess  of  their  initial
                                  principal  balances  (plus      days  of  interest  at the
                                  pass-through rates  thereon) over  their respective  issue
                                  prices. It is also anticipated that the Class A- and Class
                                  A-  Certificates will be issued at  a premium and that the
                                  Class
                                  Certificates will be issued with DE MINIMIS original issue
                                  discount for federal  income tax purposes.  It is  further
                                  anticipated  that  the Class  B-1,  Class B-2,  Class B-3,
                                  Class B-4 and Class B-5  Certificates will be issued  with
                                  original issue discount for federal income tax purposes.
                                  The  holder of the Class  A-R Certificate will be required
                                  to include  the taxable  income or  loss of  the REMIC  in
                                  determining  its federal taxable income. It is anticipated
                                  that all or a substantial portion of the taxable income of
                                  the REMIC includible  by the  Class A-R  Certificateholder
                                  will  be treated  as "excess inclusion"  income subject to
                                  special limitations for federal income tax purposes. AS  A
                                  RESULT,  THE EFFECTIVE  AFTER-TAX RETURN OF  THE CLASS A-R
                                  CERTIFICATE MAY BE SIGNIFICANTLY  LOWER THAN WOULD BE  THE
                                  CASE  IF THE  CLASS A-R CERTIFICATE  WERE TAXED  AS A DEBT
                                  INSTRUMENT,  OR  MAY  BE  NEGATIVE.  FURTHER,  SIGNIFICANT
                                  RESTRICTIONS  APPLY  TO  THE  TRANSFER  OF  THE  CLASS A-R
                                  CERTIFICATE. THE CLASS A-R CERTIFICATE WILL BE  CONSIDERED
                                  A  "NONECONOMIC RESIDUAL  INTEREST," CERTAIN  TRANSFERS OF
                                  WHICH MAY BE DISREGARDED FOR FEDERAL INCOME TAX PURPOSES.
                                  See "Description of  the Certificates  -- Restrictions  on
                                  Transfer  of the Class  A-R and Class  M Certificates" and
                                  "Federal Income  Tax  Considerations" in  this  Prospectus
                                  Supplement and "Certain Federal Income Tax Consequences --
                                  Federal Income Tax Consequences for REMIC Certificates" in
                                  the Prospectus.
ERISA Considerations............  A  fiduciary of any  employee benefit plan  subject to 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 a governmental
                                  plan 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"), should carefully review  with its legal  advisors
                                  whether  the purchase  or holding  of Offered Certificates
                                  could  give  rise  to  a  transaction  prohibited  or  not
                                  otherwise  permissible  under ERISA,  the Code  or Similar
                                  Law. BECAUSE THE CLASS M CERTIFICATES ARE SUBORDINATED  TO
                                  THE  SENIOR CERTIFICATES, THE CLASS M CERTIFICATES MAY NOT
                                  BE TRANSFERRED UNLESS THE  TRANSFEREE HAS DELIVERED (I)  A
                                  REPRESENTATION  LETTER TO  THE TRUSTEE  AND SELLER 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 HEREIN, THAT THE SOURCE OF FUNDS USED
                                  TO  PURCHASE  THE CLASS  M  CERTIFICATES IS  AN "INSURANCE
                                  COMPANY GENERAL ACCOUNT" OR (II) AN OPINION OF COUNSEL  AS
                                  DESCRIBED  UNDER "ERISA CONSIDERATIONS" IN THIS PROSPECTUS
                                  SUPPLEMENT RELATING TO THE OFFERING OF SUCH  CERTIFICATES.
</TABLE>
 
                                      S-25
<PAGE>
 
<TABLE>
<S>                               <C>
                                  THE  CLASS  A-R CERTIFICATE  MAY  NOT BE  PURCHASED  BY OR
                                  TRANSFERRED TO A PLAN. See "ERISA Considerations" in  this
                                  Prospectus Supplement and in the Prospectus.
Legal Investment................  [The   Offered  Certificates   will  constitute  "mortgage
                                  related securities" for purposes of the Secondary Mortgage
                                  Market Enhancement Act of 1984 (the "Enhancement Act")  so
                                  long  as they are  rated in one of  the two highest rating
                                  categories  by   at   least  one   nationally   recognized
                                  statistical  rating  organization.  As  such,  the Offered
                                  Certificates are legal investments for certain entities to
                                  the extent  provided  in  such  act.  However,  there  are
                                  regulatory  requirements and  considerations applicable to
                                  regulated financial institutions  and restrictions on  the
                                  ability of such institutions to invest in certain types of
                                  mortgage rated securities.] [The Offered Certificates will
                                  not  constitute  "mortgage related  securities"  under the
                                  Secondary Mortgage  Market Enhancement  Act of  1984  (the
                                  "Enhancement  Act").  The appropriate  characterization of
                                  the Offered  Certificates under  various legal  investment
                                  restrictions, and thus the ability of investors subject to
                                  these  restrictions to purchase  Offered Certificates, may
                                  be subject to significant interpretive uncertainties.  All
                                  investors  whose investment authority  is subject to legal
                                  restrictions should consult  their own  legal advisors  to
                                  determine,  whether,  and  to  what  extent,  the  Offered
                                  Certificates will constitute legal investments for  them.]
                                  Prospective  purchasers of the Offered Certificates should
                                  consult their own  legal, tax and  accounting advisors  in
                                  determining the suitability of and consequences to them of
                                  the  purchase,  ownership and  disposition of  the Offered
                                  Certificates. See  "Legal Investment"  in this  Prospectus
                                  Supplement.
</TABLE>
 
                                      S-26
<PAGE>
                                  RISK FACTORS
 
GENERAL
 
    The  rate  of distributions  in reduction  of the  principal balance  of any
Subclass or Class of Offered Certificates, the aggregate amount of distributions
of principal and interest on any  Subclass or Class of Offered Certificates  and
the  yield to maturity of any Subclass  or Class of Offered Certificates will be
directly related to the rate of payments  of principal on the Mortgage Loans  in
the  Trust Estate or, in the case of  the Class AP Certificates, on the Discount
Mortgage Loans, and  the amount and  timing of mortgagor  defaults resulting  in
Realized  Losses. The rate of  principal payments on the  Mortgage Loans will in
turn be affected by the amortization  schedules of the Mortgage Loans, the  rate
of principal prepayments (including partial prepayments and those resulting from
refinancing)  thereon by  mortgagors, liquidations of  defaulted Mortgage Loans,
repurchases by  Norwest Mortgage  of Mortgage  Loans as  a result  of  defective
documentation   or  by  the  appropriate  Representing  Party  for  breaches  of
representations and warranties,  optional purchase  by the  Seller of  defaulted
Mortgage  Loans and optional purchase by Norwest Mortgage of all of the Mortgage
Loans in connection with the termination  of the Trust Estate. See "Pooling  and
Servicing  Agreement  --  Optional  Termination"  herein  and  "The  Pooling and
Servicing Agreement  --  Assignment  of  Mortgage Loans  to  the  Trustee,"  "--
Optional  Purchases" and  "-- Termination;  Purchase of  Mortgage Loans"  in the
Prospectus. Mortgagors are permitted to prepay  the Mortgage Loans, in whole  or
in part, at any time without penalty.
 
    The  rate of payments (including prepayments)  on pools of mortgage loans is
influenced by a variety  of economic, geographic, social  and other factors.  If
prevailing  rates for  similar mortgage loans  fall below  the Mortgage Interest
Rates on the Mortgage Loans, the rate of prepayment would generally be  expected
to  increase. Conversely, if interest rates on similar mortgage loans rise above
the Mortgage Interest Rates on the Mortgage Loans, the rate of prepayment  would
generally be expected to decrease.
 
    An   investor  that  purchases  any  Offered  Certificates  at  a  discount,
particularly the Class AP Certificates, should  consider the risk that a  slower
than  anticipated rate of  principal payments on  the Mortgage Loans,  or in the
case of the Class AP Certificates,  on the Discount Mortgage Loans, will  result
in  an  actual yield  that  is lower  than  such investor's  expected  yield. An
investor that purchases any  Offered Certificates at  a premium should  consider
the  risk  that a  faster than  anticipated  rate of  principal payments  on the
Mortgage Loans will result in an actual yield that is lower than such investor's
expected yield. See "Prepayment and Yield Considerations" herein.
 
SUBORDINATION
 
    The  rights  of  the  holders  of  the  Class  M  Certificates  to   receive
distributions  with respect to  the Mortgage Loans  in the Trust  Estate will be
subordinated to such rights  of the holders of  the Senior Certificates and  the
rights  of the holders of the Class B Certificates to receive distributions with
respect to the Mortgage Loans in the  Trust Estate will be subordinated to  such
rights  of the holders of the Senior  Certificates and the Class M Certificates,
all to the  extent described herein  under "Description of  the Certificates  --
Subordination of Class M and Class B Certificates."
 
BOOK-ENTRY SYSTEM FOR CERTAIN CLASSES AND SUBCLASSES OF CERTIFICATES
 
    Transactions in the Classes and Subclasses of Book-Entry Certificates of any
Series generally can be effected only through DTC, DTC Participants and Indirect
DTC  Participants.  The  ability  of a  Beneficial  Owner  to  pledge Book-Entry
Certificates and the liquidity of the Book-Entry Certificates in general may  be
limited  due  to  the  lack  of  a  physical  certificate  for  such  Book-Entry
Certificates. In  addition, Beneficial  Owners may  experience delays  in  their
receipt  of payments. See "Risk  Factors and Special Considerations --Book-Entry
System for Certain Classes and  Subclasses of Certificates" and "Description  of
the Certificates -- Book-Entry Form" in the Prospectus.
 
    See "Risk Factors" in the Prospectus.
 
                                      S-27
<PAGE>
                        DESCRIPTION OF THE CERTIFICATES
 
DENOMINATIONS
 
    The   Offered  Certificates,  other   than  the  Class   A-R  and  Class  AP
Certificates, will  be  issued  in minimum  denominations  of  $100,000  initial
principal  balance and integral multiples of $1,000 initial principal balance in
excess thereof. The Class A-R Certificate will be issued as a single Certificate
with a  denomination of  $           initial  principal  balance. The  Class  AP
Certificates  will  be  issued  in  minimum  denominations  of  $100,000 initial
principal balance  and integral  multiples of  $1 initial  principal balance  in
excess  thereof, except that one  of the Class AP  Certificates may be issued in
any denomination in excess of $100,000 initial principal balance.
 
DEFINITIVE FORM
 
    Offered Certificates  issued  in  fully registered,  certificated  form  are
referred  to herein  as "Definitive Certificates."  The Class A-R,  Class AP and
Class M Certificates will be issued as Definitive Certificates. Distributions of
principal of, and interest on, the  Definitive Certificates will be made by  the
Trustee  or other paying agent directly to holders of Definitive Certificates in
accordance with the procedures set forth in the Pooling and Servicing Agreement.
The Definitive Certificates will be transferable and exchangeable at the offices
of the Trustee or other certificate registrar. No service charge will be imposed
for any  registration of  transfer  or exchange,  but  the Trustee  may  require
payment  of  a sum  sufficient to  cover  any tax  or other  governmental charge
imposed in connection therewith.
 
BOOK-ENTRY FORM
 
    Each Subclass of the Book-Entry  Certificates initially will be  represented
by  one physical certificate registered  in the name of  Cede & Co. ("Cede"), as
nominee of  DTC, which  will  be the  "holder"  or "Certificateholder"  of  such
Certificates,  as such terms are used herein. No person acquiring an interest in
the Book-Entry Certificates (a "Beneficial Owner") will be entitled to receive a
Definitive Certificate  representing such  person's interest  in the  Book-Entry
Certificates,  except as  set forth  under "Description  of the  Certificates --
Book-Entry Form" in the Prospectus. Unless and until Definitive Certificates are
issued under  the limited  circumstances described  therein, all  references  to
actions  taken  by  Certificateholders or  holders  shall,  in the  case  of the
Book-Entry Certificates, refer to  actions taken by  DTC upon instructions  from
its  DTC  Participants (as  defined under  "Description  of the  Certificates --
Book-Entry Form" in the Prospectus), and all references herein to distributions,
notices, reports and statements to  Certificateholders or holders shall, in  the
case  of the Book-Entry  Certificates, refer to  distributions, notices, reports
and statements  to DTC  or Cede,  as  the registered  holder of  the  Book-Entry
Certificates,  as  the case  may be,  for distribution  to Beneficial  Owners in
accordance  with  DTC  procedures.  See  "Description  of  the  Certificates  --
Book-Entry Form" in the Prospectus.
 
DISTRIBUTIONS
 
    Distributions  of interest and in reduction  of principal balance to holders
of the Class A, Class AP, Class M and Class B Certificates will be made monthly,
to the extent of each Subclass' or Class's entitlement thereto, on the 25th  day
of  each month or, if such day is not a business day, on the succeeding business
day (each, a "Distribution Date"), beginning in           199 . With respect  to
the Class A Certificates, such distributions will be made, to the extent of each
Subclass's  entitlement thereto,  in an  aggregate amount  equal to  the Class A
Distribution  Amount.  With   respect  to  the   Class  AP  Certificates,   such
distributions  will  be  made,  to  the extent  of  the  Class  AP Certificates'
entitlement thereto, on each Distribution Date  in an amount equal to the  Class
AP Principal Distribution Amount after all amounts in respect of interest due on
the  Class A  Certificates for such  Distribution Date  including all previously
unpaid Class A Subclass Interest Shortfall Amounts with respect to any  Subclass
of   Class  A  Certificates  have  been  paid.  With  respect  to  the  Class  M
Certificates, such distributions  will be  made, to the  extent of  the Class  M
Certificates'  entitlement thereto,  on each  Distribution Date  in an aggregate
amount equal to the Class M Distribution Amount after all amounts in respect  of
interest  and principal due on the Class A Certificates and principal due on the
Class AP
 
                                      S-28
<PAGE>
Certificates for such Distribution Date including all previously unpaid Class  A
Subclass  Interest Shortfall  Amounts with  respect to  any Subclass  of Class A
Certificates have been paid. See  "Description of the Certificates --  Interest"
herein.  The "Determination Date" with respect to each Distribution Date will be
the 17th day of each month, or if such day is not a business day, the  preceding
business day. Distributions will be made on each Distribution Date to holders of
record  (which, in  the case  of the Book-Entry  Certificates, will  be Cede, as
nominee for  DTC) at  the close  of business  on the  last business  day of  the
preceding  month (each, a "Record Date"),  except that the final distribution in
respect of any Certificate will only be made upon presentation and surrender  of
such  Certificate at the office or agency appointed by the Trustee and specified
in the notice of final distribution in respect of such Certificate.
 
    The aggregate  amount available  for distribution  to Certificateholders  on
each  Distribution  Date  will  be  the  Pool  Distribution  Amount.  The  "Pool
Distribution Amount" for a Distribution Date  will be the sum of all  previously
undistributed  payments  or other  receipts on  account of  principal (including
principal prepayments and Liquidation Proceeds in respect of principal, if any),
and interest (net of related servicing, master servicing and trustee fees) on or
in respect of  the Mortgage  Loans received  by the  Master Servicer,  including
without  limitation  any  related insurance  proceeds  and the  proceeds  of any
purchase of a related Mortgage Loan  for breach of a representation or  warranty
or  the  sale of  a  Mortgaged Property  by a  Servicer  in connection  with the
liquidation of the related Mortgage Loan on  or prior to the Remittance Date  in
the month in which such Distribution Date occurs, plus (i) all Periodic Advances
made and (ii) all other amounts (including any insurance proceeds) placed in the
Certificate  Account by any Servicer on or  before the Remittance Date or by the
Master Servicer on or before the  Distribution Date pursuant to the Pooling  and
Servicing Agreement, but excluding the following:
 
        (a)   amounts  received  as  late  payments  of  principal  or  interest
    respecting which one or more unreimbursed Periodic Advances has been made;
 
        (b) to the extent permitted by the Pooling and Servicing Agreement, that
    portion of  Liquidation  Proceeds  with  respect to  a  Mortgage  Loan  that
    represents any unreimbursed Periodic Advances of such Servicer;
 
        (c)  those portions of each payment of interest on a particular Mortgage
    Loan which represent (i) the applicable Servicing Fee as adjusted in respect
    of Prepayment Interest Shortfalls  and, if applicable, Curtailment  Interest
    Shortfalls  as described under "Description of the Certificates -- Interest"
    below, (ii) the  Master Servicer  Fee, (iii) the  Trustee Fee  and (iv)  the
    Fixed Retained Yield, if any;
 
        (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 principal prepayments in full, partial principal prepayments and
    Partial  Liquidation Proceeds received  by the related  Servicer on or after
    the Determination Date  occurring in  the month in  which such  Distribution
    Date occurs, and all related payments of interest on such amounts;
 
        (f) to the extent permitted by the Pooling and Servicing Agreement, that
    portion  of Liquidation  Proceeds or  insurance proceeds  with respect  to a
    Mortgage Loan or proceeds  of any Mortgaged Property  that becomes owned  by
    the  Trustee which represents any unpaid  Servicing Fee, Master Servicer Fee
    or Trustee Fees to which such Servicer, the Master Servicer or the  Trustee,
    respectively,  is entitled, or which represents unpaid Fixed Retained Yield,
    and  the  portion  of  net  Liquidation  Proceeds  used  to  reimburse   any
    unreimbursed Periodic Advances;
 
        (g) all amounts representing certain expenses reimbursable to the Master
    Servicer  and other amounts permitted to  be retained by the Master Servicer
    or withdrawn by the Master Servicer from the Certificate Account pursuant to
    the Pooling and Servicing Agreement;
 
                                      S-29
<PAGE>
        (h) reinvestment  earnings  on  payments  received  in  respect  of  the
    Mortgage Loans or on other amounts on deposit in the Certificate Account;
 
        (i) Net Foreclosure Profits; and
 
         (j)  the amount  of any  recoveries in  respect of  principal which had
    previously been allocated as a loss to one or more Classes or Subclasses  of
    the Certificates.
 
    The "Remittance Date" with respect to any Distribution Date will be the 18th
day  of each month, or if any day  is not a business day, the preceding business
day.
 
    Each Servicer  is required  to deposit  in the  Certificate Account  on  the
Remittance  Date certain amounts in  respect of the Mortgage  Loans as set forth
herein under "Servicing of the Mortgage Loans -- Custodial Accounts." The Master
Servicer is required to remit to the Trustee on or before the Distribution  Date
any payments constituting part of the Pool Distribution Amount that are received
by the Master Servicer or are required to be made with the Master Servicer's own
funds.  Except  as described  below under  "Description  of the  Certificates --
Periodic Advances," neither the Master Servicer nor the Trustee is obligated  to
remit  any amounts which  a Servicer was  required but failed  to deposit in the
Certificate Account.
 
    On each Distribution Date,  the Pool Distribution  Amount will be  allocated
among  the Classes or Subclasses of  Certificates and distributed to the holders
thereof of  record  as  of  the  related  Record  Date  as  follows  (the  "Pool
Distribution Amount Allocation"):
 
    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;
 
    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;
 
    THIRD, concurrently, to  the Class  A and  Class AP  Certificates pro  rata,
based on their respective class optimal principal amounts, (A) to the Subclasses
of  Class  A Certificates,  in an  aggregate amount  up to  the Class  A Optimal
Principal Amount, such  distribution to  be allocated among  such Subclasses  in
accordance  with the priorities  set forth below  under "-- Principal (Including
Prepayments)  --  Allocation  of  Amount  to  be  Distributed  to  the  Class  A
Certificates"  and (B) to the Class AP Certificates in an amount up to the Class
AP Optimal Principal Amount;
 
    FOURTH, to  the Class  AP  Certificates in  an amount  up  to the  Class  AP
Deferred  Amount, but only, first  from amounts otherwise distributable (without
regard to this priority) to the  Subclasses of Class B Certificates pursuant  to
priority  EIGHTH clause (C) of this Pool Distribution Amount Allocation and then
from amounts otherwise distributable  (without regard to  this priority) to  the
Class  M Certificates  pursuant to  priority SEVENTH  of this  Pool Distribution
Amount Allocation;
 
    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 sum  of the
previously unpaid Class M Interest Shortfall Amounts;
 
    SEVENTH, to the Class M Certificates in an amount up to the Class M  Optimal
Principal  Amount; provided, however, that  the amount distributable pursuant to
this priority SEVENTH to the Class M Certificates will be reduced by the amount,
if any, otherwise distributable as principal hereunder used to pay the Class  AP
Deferred Amount in accordance with priority FOURTH; and
 
    EIGHTH,  sequentially, to the Class B-1, Class B-2, Class B-3, Class B-4 and
Class B-5 Certificates so that each such Subclass shall receive (A) an amount up
to  its  Class  B  Subclass  Interest  Accrual  Amount  with  respect  to   such
Distribution   Date,  (B)   then,  an  amount   up  to   its  previously  unpaid
 
                                      S-30
<PAGE>
interest shortfall amount and (C) finally, an amount up to its optimal principal
amount before  any Subclasses  of  Class B  Certificates with  higher  numerical
designations receive any payments in respect of interest or principal; provided,
however,  that the amount distributable pursuant  to this priority EIGHTH clause
(C) to any Subclasses of Class B Certificates will be reduced by the amount,  if
any,  otherwise distributable  as principal hereunder  used to pay  the Class AP
Deferred Amount in accordance with priority FOURTH.
 
    The "Class A Distribution Amount" for any Distribution Date will be equal to
the sum of the amounts distributed  in accordance with priorities FIRST,  SECOND
and THIRD clause (A) of the Pool Distribution Amount Allocation set forth above.
 
    The "Class M Distribution Amount" for any Distribution Date will be equal to
the  sum of the amounts distributed  in accordance with priorities FIFTH through
SEVENTH of the Pool Distribution Amount Allocation set forth above.
 
    The undivided percentage interest (the "Percentage Interest") represented by
any Offered Certificate  of a  Subclass or any  Class in  distributions to  such
Subclass  or Class  will be  equal to  the percentage  obtained by  dividing the
initial principal balance of such Certificate by the aggregate initial principal
balance of all Certificates of such Subclass or Class, as the case may be.
 
INTEREST
 
    The amount  of  interest  that will  accrue  on  each Subclass  of  Class  A
Certificates  during  each month,  after taking  into account  any Non-Supported
Interest Shortfalls and the interest portion of certain losses allocated to such
Subclass, is  referred to  herein  as the  "Class  A Subclass  Interest  Accrual
Amount" for such Subclass. The Class A Subclass Interest Accrual Amount for each
Subclass  of  Class A  Certificates will  equal the  difference between  (a) the
product of (i) 1/12th of  the Pass-Through Rate for  such Subclass and (ii)  the
outstanding  Class A Subclass Principal Balance of such Subclass and (b) the sum
of (i) any Non-Supported Interest Shortfall allocable to such Subclass, (ii) the
interest portion of any  Excess Special Hazard Losses,  Excess Fraud Losses  and
Excess  Bankruptcy  Losses allocable  to such  Subclass  and (iii)  the interest
portion of any Realized  Losses, other than the  interest portion of any  Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy Losses,
allocable to such  Subclass on or  after the Cross-Over  Date. The  pass-through
rate  for each Subclass of Offered Certificates (the "Pass-Through Rate") is the
percentage set forth on the cover of this Prospectus Supplement.
 
    No interest will accrue on the Class AP Certificates.
 
    The amount of interest that will  accrue on the Class M Certificates  during
each  month, after taking into account any Non-Supported Interest Shortfalls and
the interest portion of certain losses  allocated to such Class, is referred  to
herein  as the "Class M  Interest Accrual Amount." The  Class M Interest Accrual
Amount will equal the difference between (a) the  product of (i) 1/12th of     %
and  (ii) the outstanding Class  M Principal Balance and (b)  the sum of (i) any
Non-Supported Interest Shortfall allocable to  such Class and (ii) the  interest
portion  of any  Excess Special  Hazard Losses,  Excess Fraud  Losses and Excess
Bankruptcy Losses allocable to such Class.
 
    The amount  of  interest  that will  accrue  on  each Subclass  of  Class  B
Certificates  during  each month,  after taking  into account  any Non-Supported
Interest Shortfalls and the interest portion of certain losses allocated to such
Class, is referred to herein as the "Class B Subclass Interest Accrual  Amount."
The  Class B Subclass Interest Accrual  Amount will equal the difference between
(a) the product of (i) 1/12th of    % and (ii) the outstanding Class B  Subclass
Principal  Balance and (b)  the sum of (i)  any Non-Supported Interest Shortfall
allocable to such Subclass and (ii)  the interest portion of any Excess  Special
Hazard  Losses, Excess  Fraud Losses and  Excess Bankruptcy  Losses allocable to
such Subclass.
 
    The  "Class  A  Subclass  Principal  Balance"  of  a  Subclass  of  Class  A
Certificates  as of any Determination Date will be the principal balance of such
Subclass   on    the   date    of   initial    issuance   of    the   Class    A
 
                                      S-31
<PAGE>
Certificates,  less  (i)  all  amounts  previously  distributed  to  holders  of
Certificates of such  Subclass in  reduction of  the principal  balance of  such
Subclass  and (ii)  such Subclass'  pro rata share  of the  principal portion of
Excess Special Hazard Losses, Excess  Fraud Losses and Excess Bankruptcy  Losses
previously  allocated  to the  holders  of Class  A  Certificates in  the manner
described herein under "-- Subordination of Class M and Class B Certificates  --
Allocation of Losses." After the Cross-Over Date, the Class A Subclass Principal
Balance  of a Subclass may be subject to further reduction in an amount equal to
such Subclass' pro rata share of the difference, if any, between (a) the Class A
Principal Balance as of such Determination Date without regard to this provision
and (b) the difference  between (i) the Adjusted  Pool Amount for the  preceding
Distribution  Date and (ii) the Adjusted Pool  Amount (Class AP Portion) for the
preceding Distribution Date.  Any pro  rata allocation among  the Subclasses  of
Class  A  Certificates  described  in  this paragraph  will  be  made  among the
Subclasses of Class A Certificates on the basis of their then-outstanding  Class
A  Subclass Principal Balances  immediately prior to  the preceding Distribution
Date.
 
    The "Class A Principal Balance" as  of any Determination Date will be  equal
to the sum of the Class A Subclass Principal Balances of the Subclasses of Class
A Certificates as of such date.
 
    The  "Class AP Principal Balance"  as of any Determination  Date will be the
principal balance of the Class AP  Certificates on the date of initial  issuance
of  the Class  AP Certificates  less (i)  all amounts  previously distributed to
holders of the Class  AP Certificates in reduction  of the principal balance  of
such  Class  pursuant to  priorities THIRD  clause  (B) and  FOURTH of  the Pool
Distribution Amount Allocation and (ii) the principal portion of Excess  Special
Hazard  Losses,  Excess Fraud  Losses  and Excess  Bankruptcy  Losses previously
allocated to the holders  of the Class AP  Certificates in the manner  described
herein under "-- Subordination of Class M and Class B Certificates -- Allocation
of  Losses." After the Cross-Over  Date, the Class AP  Principal Balance will be
subject to further reduction in  an amount equal to the  excess, if any, of  (a)
the  Class AP Principal Balance as of  such Determination Date without regard to
this provision over  (b) the  Adjusted Pool Amount  (Class AP  Portion) for  the
preceding Distribution Date.
 
    The  "Class M Principal  Balance" as of  any Determination Date  will be the
lesser of (a) the principal balance of  the Class M Certificates on the date  of
initial  issuance of  the Class M  Certificates less (i)  all amounts previously
distributed to holders of the Class M Certificates in reduction of the principal
balance thereof and (ii) the principal portion of Excess Special Hazard  Losses,
Excess  Fraud Losses  and Excess Bankruptcy  Losses previously  allocated to the
holders of the  Class M Certificates  in the manner  described herein under  "--
Subordination  of Class M and Class B  Certificates -- Allocation of Losses" and
(b) the Adjusted Pool Amount as of the preceding Distribution Date less the  sum
of  (i) the Class A  Principal Balance and (ii)  the Class AP Principal Balance,
each as of such Determination Date.
 
    The  "Class  B  Subclass  Principal  Balance"  of  a  Subclass  of  Class  B
Certificates  as  of  any Determination  Date  will  be the  lesser  of  (a) the
principal balance of such Subclass on the date of initial issuance of the  Class
B  Certificates less (i)  all amounts previously distributed  to holders of such
Subclass in reduction of  the principal balance thereof  and (ii) the  principal
portion  of  Excess  Special  Hazard  Losses,  Excess  Fraud  Losses  and Excess
Bankruptcy Losses previously allocated  to the holders of  such Subclass in  the
manner  described under "-- Subordination of Class M and Class B Certificates --
Allocation of  Losses" and  (b) the  Adjusted Pool  Amount as  of the  preceding
Distribution  Date less the sum of (i) Class A Principal Balance, (ii) the Class
AP Principal Balance, (iii) the Class M  Principal Balance and (iv) the Class  B
Subclass Principal Balances of the Subclasses of Class B Certificates with lower
numerical designations, each as of such Determination Date.
 
    The  "Class B Principal Balance" as of any  date will be equal to the sum of
the  Class  B  Subclass  Principal  Balances  of  the  Subclasses  of  Class   B
Certificates as of such date.
 
    With respect to any Distribution Date, the "Adjusted Pool Amount" will equal
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 amounts received as Periodic Advances,
 
                                      S-32
<PAGE>
principal prepayments  and Liquidation  Proceeds in  respect of  principal)  and
distributed  to holders  of the Series  199 - 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.
 
    With  respect to any Distribution Date,  the "Adjusted Pool Amount (Class AP
Portion)" will equal the sum as to each Mortgage Loan outstanding at the Cut-Off
Date of the product of (A) the Class AP Fraction for such Mortgage Loan and  (B)
the  principal balance of such Mortgage Loan as of the Cut-Off Date less the sum
of (i) all amounts in respect of principal received in respect of such  Mortgage
Loan (including amounts received as Periodic Advances, principal prepayments and
Liquidation  Proceeds in respect of principal) and distributed to holders of the
Series 199 - Certificates on such  Distribution Date and all prior  Distribution
Dates  and (ii) 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 the month in which such Distribution Date occurs.
 
    The  "Net Mortgage Interest Rate" on each Mortgage Loan will be equal to the
Mortgage Interest Rate on such Mortgage  Loan as stated in the related  mortgage
note  minus the sum of (i) the Servicing Fee Rate ranging  from    % to    % per
annum, (ii)  the Master  Servicing Fee  Rate as  set forth  in the  Pooling  and
Servicing  Agreement, (iii)  the Trustee  Fee Rate  and (iv)  the Fixed Retained
Yield Rate,  if  any, for  such  Mortgage  Loan. The  initial  weighted  average
Servicing  Fee Rate of the Mortgage  Loans is approximately     % per annum. See
"Servicing of the Mortgage Loans -- Fixed Retained Yield; Servicing Compensation
and Payment of Expenses" herein.
 
    When mortgagors  prepay principal  or when  principal is  recovered  through
foreclosures  or other liquidations of defaulted  Mortgage Loans, a full month's
interest for the  month of payment  or recovery  may not be  paid or  recovered,
resulting  in interest shortfalls. [Interest shortfalls resulting from principal
prepayments in full are referred to herein as "Prepayment Interest  Shortfalls."
Prepayment  Interest Shortfalls occurring with respect to Mortgage Loans will be
offset to the extent of the aggregate Servicing Fees due to the related Servicer
in respect of the related Distribution Date. Interest shortfalls resulting  from
the  timing of the receipt  of partial principal prepayments  and of net Partial
Liquidation Proceeds with respect  to the Mortgage Loans  will not be offset  by
Servicing  Fees payable to the related Servicer, but instead will be borne first
by the Class B Certificates, then by the Class M Certificates and finally by the
Class A Certificates. See "Description  of the Certificates -- Subordination  of
Class  M  and  Class  B  Certificates"  herein.  As  to  any  Distribution Date,
Prepayment Interest  Shortfalls to  the extent  that they  exceed the  aggregate
Servicing Fees payable to the related Servicer or Servicers on such Distribution
Date  are referred to herein as "Non-Supported Interest Shortfalls"] and will be
allocated to (i) the Class A  Certificates according to the percentage  obtained
by  dividing the then-outstanding  Class A Principal  Balance by the  sum of the
then-outstanding Class A Principal Balance, Class M Principal Balance and  Class
B  Principal Balance, (ii) the Class  M Certificates according to the percentage
obtained by dividing the then-outstanding Class  M Principal Balance by the  sum
of the then-outstanding Class A Principal Balance, Class M Principal Balance and
Class  B  Principal Balance  and (iii)  the Subclasses  of Class  B Certificates
according to the percentage  obtained by dividing  the then-outstanding Class  B
Subclass   Principal  Balance  of   each  such  Subclass  by   the  sum  of  the
then-outstanding Class A Principal Balance, Class M Principal Balance and  Class
B  Principal Balance.  Such allocation  of the  Non-Supported Interest Shortfall
will reduce the amount of interest due to be distributed to holders of the Class
A Certificates  then entitled  to  distributions in  respect of  interest.  Such
allocation  of the Non-Supported Interest Shortfall  will also reduce the amount
of interest due to be distributed to the holders of the Class M Certificates and
the Class B  Certificates. Any  such reduction in  respect of  interest will  be
allocated  among the Subclasses of Class A Certificates pro rata on the basis of
their respective Class A Subclass Interest Accrual Amounts without regard to any
reduction pursuant to this paragraph, for such Distribution Date. See "Servicing
of the Mortgage Loans -- Adjustment to Servicing Fee in Connection with  Prepaid
Mortgage Loans" in the Prospectus.
 
                                      S-33
<PAGE>
    The  interest  portion of  any Excess  Special  Hazard Losses,  Excess Fraud
Losses or Excess Bankruptcy Losses will be allocated among the Class A, Class  M
and  Class B Certificates  pro rata based  on the interest  accrued on each such
Class or Subclass and among the Subclasses  of Class A Certificates pro rata  on
the basis of their respective Class A Subclass Interest Accrual Amounts, without
regard to any reduction pursuant to this paragraph, for such Distribution Date.
 
    Allocations  of the interest  portion of Realized  Losses (other than Excess
Special Hazard Losses, Excess Fraud Losses or Excess Bankruptcy Losses) first to
the Class B Certificates and then to  the Class M Certificates will result  from
the  priority of distributions  first to the holders  of the Senior Certificates
and then to the  Class M Certificateholders of  the Pool Distribution Amount  as
described above under "Description of the Certificates -- Distributions."
 
    On  each Distribution Date  on which the Pool  Distribution Amount equals or
exceeds the sum of the Class A Subclass Interest Accrual Amounts,  distributions
in  respect of interest to each Subclass of Class A Certificates will equal such
Subclass' Class A Subclass Interest Accrual Amount.
 
    If, on any Distribution Date, the Pool Distribution Amount is less than  the
sum  of the Class  A Subclass Interest  Accrual Amounts, the  amount of interest
currently  distributed  on  the  Class  A  Certificates  will  equal  the   Pool
Distribution  Amount  and will  be  allocated among  the  Subclasses of  Class A
Certificates pro rata in  accordance with each such  Subclass' Class A  Subclass
Interest  Accrual Amount. Amounts so allocated will be distributed in respect of
interest to each Subclass  of Class A Certificates.  Any difference between  the
portion  of  the  Pool Distribution  Amount  distributed in  respect  of current
interest to  each Subclass  of Class  A Certificates  and the  Class A  Subclass
Interest   Accrual  Amount  for  such  Subclass  with  respect  to  the  related
Distribution Date (as to each Subclass, the "Class A Subclass Interest Shortfall
Amount")  will  be  added  to  the  amount  to  be  distributed  on   subsequent
Distribution Dates to the extent that the Pool Distribution Amount is sufficient
therefor.  No  interest will  accrue  on the  unpaid  Class A  Subclass Interest
Shortfall Amounts.
 
    On each Distribution Date on which the Pool Distribution Amount exceeds  the
sum  of the Class A  Subclass Interest Accrual Amounts,  any excess will then be
allocated first to  pay previously  unpaid Class A  Subclass Interest  Shortfall
Amounts.  Such  amounts  will  be  allocated among  the  Subclasses  of  Class A
Certificates pro rata in accordance with the respective unpaid Class A  Subclass
Interest Shortfall Amounts immediately prior to such Distribution Date.
 
    On  each Distribution Date  on which the Pool  Distribution Amount equals or
exceeds the sum for such Distribution Date of (A) the sum of (i) the sum of  the
Class A Subclass Interest Accrual Amounts with respect to each Subclass of Class
A  Certificates, (ii) the sum of the  unpaid Class A Subclass Interest Shortfall
Amounts with respect  to each  Subclass of Class  A Certificates  and (iii)  the
Class  A Optimal  Principal Amount (collectively  with the  amounts described in
clauses (i) and (ii), the  "Class A Optimal Amount"),  (B) the Class AP  Optimal
Principal  Amount (collectively  with the  amount described  in clause  (A), the
"Senior  Optimal  Amount")  and  (C)  the  Class  M  Interest  Accrual   Amount,
distributions  in respect of  current interest to the  Class M Certificates will
equal the Class M Interest Accrual Amount.
 
    If, on any Distribution Date, the Pool Distribution Amount is less than  the
sum  of (i)  the Senior  Optimal Amount  and (ii)  the Class  M Interest Accrual
Amount, the amount of current interest  distributed on the Class M  Certificates
will  equal the  Pool Distribution Amount  minus the amounts  distributed to the
Senior Certificates  with  respect to  such  Distribution Date.  Any  difference
between  the portion of  the Pool Distribution Amount  distributed in respect of
current interest to the  Class M Certificates and  the Class M Interest  Accrual
Amount  with respect to such Distribution  Date (the "Class M Interest Shortfall
Amount")  will  be  added  to  the  amount  to  be  distributed  on   subsequent
Distribution  Dates to the  Class M Certificates,  but only so  long as they are
outstanding, to  the extent  that  the Pool  Distribution Amount  is  sufficient
therefor.  No  interest will  accrue on  the unpaid  Class M  Interest Shortfall
Amount.
 
                                      S-34
<PAGE>
    Subject to the payment of any Class AP Deferred Amount, on each Distribution
Date on which the Pool Distribution Amount exceeds the sum of the Senior Optimal
Amount and the  Class M Interest  Accrual Amount, any  excess will be  allocated
first  to pay previously unpaid  Class M Interest Shortfall  Amounts and then to
make distributions in respect  of principal on the  Class M Certificates and  in
respect of interest and then principal on the Subclasses of Class B Certificates
in numerical order. With respect to each Distribution Date, the "Class M Optimal
Amount"  will equal the sum of (i) the Class M Interest Accrual Amount, (ii) the
unpaid Class M Interest Shortfall Amount and (iii) the Class M Optimal Principal
Amount.
 
    On any Distribution Date on which the Pool Distribution Amount is less  than
the  Senior Optimal Amount, the Class M Certificates and the Subclasses of Class
B Certificates  will  not  be  entitled to  any  distributions  of  interest  or
principal.
 
PRINCIPAL (INCLUDING PREPAYMENTS)
 
    The  principal balance of  a Class A  Certificate of any  Subclass or of any
Class AP or Class M Certificate at any time is equal to the product of the Class
A Subclass Principal Balance of such Subclass or the Class AP Principal  Balance
or  the Class M  Principal Balance, as  the case may  be, and such Certificate's
Percentage  Interest,  and  represents  the  maximum  specified  dollar   amount
(exclusive  of (i)  any interest  that may  accrue on  such Class  A or  Class M
Certificate and (ii) in  the case of the  Class A-R Certificate, any  additional
amounts  to which the  holder of such  Certificate may be  entitled as described
below under "-- Additional Rights of the Class A-R Certificateholder") to  which
the  holder thereof is entitled from the cash flow on the Mortgage Loans at such
time, and  will decline  to the  extent  of distributions  in reduction  of  the
principal  balance  of,  and allocations  of  losses to,  such  Certificate. The
approximate initial Class A Subclass Principal Balance of each Subclass of Class
A Certificates  and the  approximate  initial Class  AP  and Class  M  Principal
Balances are set forth on the cover of this Prospectus Supplement.
 
    CALCULATION OF AMOUNT TO BE DISTRIBUTED TO THE CLASS A CERTIFICATES
 
    Distributions  in  reduction  of  the  principal  balance  of  the  Class  A
Certificates will be made on each  Distribution Date pursuant to priority  THIRD
clause  (A) of the  Pool Distribution Amount Allocation,  in an aggregate amount
(the "Class  A  Principal  Distribution  Amount") up  to  the  Class  A  Optimal
Principal Amount.
 
    The  "Class A  Optimal Principal Amount"  with respect  to each Distribution
Date will be  an amount  equal to  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 Classes A/M/B Fraction for such Mortgage Loan
and (B) the sum of:
 
    (i) the Class A Percentage of (A) the scheduled payment of principal due  on
       such  Mortgage  Loan  on  the  first  day  of  the  month  in  which  the
       Distribution Date occurs, less (B) if the Bankruptcy Loss Amount is zero,
       the principal portion  of Debt  Service Reductions with  respect to  such
       Mortgage Loan,
 
    (ii) 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  a Representing Party, as  described
       under  the  heading  "Description  of  the  Mortgage  Loans  -- Mandatory
       Repurchase or Substitution of Mortgage Loans" herein,
 
    (iii) The Class A Prepayment Percentage of (a) the aggregate net Liquidation
       Proceeds (other  than  net  Partial Liquidation  Proceeds)  on  any  such
       Mortgage  Loan that became a Liquidated  Loan during such preceding month
       (excluding the  portion thereof,  if  any, constituting  Net  Foreclosure
       Profits,  as  defined  under  "--  Additional  Rights  of  the  Class A-R
       Certificateholder" below), less the amounts allocable to principal of any
       unreimbursed Periodic  Advances  previously  made with  respect  to  such
       Liquidated  Loan  and  the  portion  of  such  net  Liquidation  Proceeds
       allocable to  interest  and (b)  the  aggregate net  Partial  Liquidation
       Proceeds  on any such Mortgage Loan received  by any Servicer on or after
       the Determination
 
                                      S-35
<PAGE>
       Date  occurring  in  the  month   preceding  the  month  in  which   such
       Distribution Date occurs and prior to the Determination Date occurring in
       the  month  in which  such Determination  Date  occurs, less  the amounts
       allocable to  principal of  any unreimbursed  Periodic Advances  and  the
       portion of the net Partial Liquidation Proceeds allocable to interest,
 
    (iv) the Class A Prepayment Percentage of the Scheduled Principal Balance of
       each  Mortgage Loan  which was the  subject of a  principal prepayment in
       full during the period from and  including the Determination Date in  the
       month  preceding  the month  of  such Distribution  Date  up to  (but not
       including)  the  Determination  Date  occurring  in  the  month  of  such
       Distribution Date,
 
    (v)  the Class A Prepayment Percentage  of all partial principal prepayments
       received by any Servicer with respect  to such Mortgage Loan on or  after
       the  Determination Date  occurring in  the month  preceding the  month in
       which such Distribution Date occurs  and prior to the Determination  Date
       occurring in the month in which such Distribution Date occurs, and
 
    (vi)  the Class A Percentage of  the difference between the unpaid principal
       balance of any 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,
       less the amount allocable  to the principal  portion of any  unreimbursed
       advances in respect of such defective Mortgage Loan.
 
    In addition, in the event that there is any recovery of an amount in respect
of principal which had previously been allocated as a Realized Loss to the Class
A  Certificates, each Subclass of Class  A Certificates then outstanding will be
entitled to its pro rata share of such recovery in an amount up to the amount by
which the Class A Subclass Principal Balance  of such Subclass was reduced as  a
result of such Realized Loss.
 
    The  "Classes A/M/B Fraction"  with respect to any  Mortgage Loan will equal
the Net Mortgage Interest Rate for such Mortgage Loan divided by    %.
 
    The "Scheduled Principal Balance" of a Mortgage Loan as of any  Distribution
Date  is the unpaid principal balance of  such Mortgage Loan as specified in the
amortization schedule at  the time  relating thereto (before  any adjustment  to
such  schedule  by  reason  of  bankruptcy  (other  than  Deficient Valuations),
moratorium or similar waiver or  grace period) as of  the Due Date occurring  in
the  month preceding  the month  in which  such Distribution  Date occurs, after
giving effect to any  principal prepayments or  other unscheduled recoveries  of
principal   previously  received,  to  any  partial  principal  prepayments  and
Deficient Valuations occurring  prior to  such Due Date  and to  the payment  of
principal  due on such Due Date, and  irrespective of any delinquency in payment
by the mortgagor and any net Partial Liquidation Proceeds applied as of such Due
Date and any principal prepayments in  full received prior to the  Determination
Date in the month of such Due Date.
 
    "Partial  Liquidation  Proceeds"  are  Liquidation  Proceeds  received  by a
Servicer on a Mortgage  Loan prior to such  Mortgage Loan becoming a  Liquidated
Loan  and "net  Partial Liquidation  Proceeds" are  Partial Liquidation Proceeds
less expenses incurred with respect to such liquidation. A "Liquidated Loan"  is
a  defaulted Mortgage  Loan as  to which  the Servicer  has determined  that all
recoverable liquidation and insurance proceeds have been received. A "Liquidated
Loan Loss" on  a Liquidated  Loan is equal  to the  excess, if any,  of (i)  the
unpaid  principal balance of such Liquidated Loan, plus accrued interest thereon
in accordance with the amortization schedule  at the Net Mortgage Interest  Rate
through  the last day of  the month in which  such Mortgage Loan was liquidated,
over (ii) net Liquidation  Proceeds. For purposes of  calculating the amount  of
any  Liquidated Loan Loss, all net  Liquidation Proceeds (after reimbursement of
any previously unreimbursed Periodic Advance)  will be applied first to  accrued
interest  and then  to the  unpaid principal balance  of the  Liquidated Loan. A
"Special Hazard Loss"  is (A)  a Liquidated Loan  Loss suffered  by a  Mortgaged
Property on account of direct physical loss exclusive of (i) any loss covered by
a  standard hazard insurance policy or, if  the Mortgaged Property is located in
an   area    identified   in    the   Federal    Register   by    the    Federal
 
                                      S-36
<PAGE>
Emergency  Management Agency as having special  flood hazards, a flood insurance
policy, of the  types described in  the Prospectus under  "The Trust Estates  --
Mortgage  Loans -- Insurance Policies" and (ii)  any loss caused by or resulting
from (a) normal wear  and tear, (b)  dishonest acts of  the Trustee, the  Master
Servicer  or the Servicer or (c) errors  in design, faulty workmanship or faulty
materials, unless the collapse of the property or a part thereof ensues or (B) a
Liquidated Loan  Loss arising  from or  relating to  the presence  or  suspected
presence  of hazardous  wastes or substances  on a Mortgaged  Property. A "Fraud
Loss" is a Liquidated Loan Loss incurred on a Liquidated Loan as to which  there
was  fraud in the  origination of such  Mortgage Loan. A  "Bankruptcy Loss" is a
loss attributable to certain actions which may be taken by a bankruptcy court in
connection with a Mortgage Loan, including a reduction by a bankruptcy court  of
the principal balance of or the interest rate on a Mortgage Loan or an extension
of  its maturity. A "Debt Service Reduction"  means a reduction in the amount of
monthly payments due to certain bankruptcy proceedings, but does not include any
permanent forgiveness of principal.  A "Deficient Valuation"  with respect to  a
Mortgage  Loan means  a valuation  by a  court of  the Mortgaged  Property in an
amount less than  the outstanding indebtedness  under the Mortgage  Loan or  any
reduction  in  the  amount  of  monthly payments  that  results  in  a permanent
forgiveness of principal, which valuation or reduction results from a bankruptcy
proceeding. Liquidated Loan  Losses (including Special  Hazard Losses and  Fraud
Losses) and Bankruptcy Losses are referred to herein as "Realized Losses."
 
    The  "Class A Percentage" for any Distribution Date occurring on or prior to
the Cross-Over Date is the percentage  (subject to rounding), which in no  event
will  exceed 100%, obtained by dividing the Class A Principal Balance as of such
date (before taking into account distributions in reduction of principal balance
on such date)  by the Pool  Balance (Classes A/M/B  Portion). The "Pool  Balance
(Classes  A/M/B Portion)" is the  sum for each outstanding  Mortgage Loan of the
product of (i) the Classes  A/M/B Fraction for such  Mortgage Loan and (ii)  the
Scheduled  Principal Balance of such Mortgage Loan as of such Distribution Date.
The Class A  Percentage for the  first Distribution Date  will be  approximately
   %.  The Class  A Percentage will  decrease as  a result of  the allocation of
certain unscheduled payments in  respect of principal according  to the Class  A
Prepayment  Percentage for  a specified period  to the Class  A Certificates and
will increase as a result  of the allocation of Realized  Losses to the Class  B
and  Class M  Certificates. The  Class A  Percentage for  each Distribution Date
occurring after the Cross-Over Date will be 100%.
 
    The "Class A Prepayment  Percentage" for any Distribution  Date will be  the
percentage indicated below:
 
<TABLE>
<CAPTION>
DISTRIBUTION DATE OCCURRING
IN                                                       CLASS A PREPAYMENT PERCENTAGE
- ----------------------------  ------------------------------------------------------------------------------------
<C>                           <S>
through.....................  100%;
through.....................  the Class A Percentage, plus 70% of the Subordinated Percentage;
through.....................  the Class A Percentage, plus 60% of the Subordinated Percentage;
through.....................  the Class A Percentage, plus 40% of the Subordinated Percentage;
through.....................  the Class A Percentage, plus 20% of the Subordinated Percentage; and
and thereafter..............  the Class A Percentage;
</TABLE>
 
    PROVIDED,  HOWEVER, that if  on any of the  foregoing Distribution Dates the
Class A  Percentage  exceeds  the  initial  Class  A  Percentage,  the  Class  A
Prepayment Percentage for such Distribution Date will once again equal 100%. See
"Prepayment   and   Yield  Considerations"   herein   and  in   the  Prospectus.
Notwithstanding the foregoing, no reduction of the Class A Prepayment Percentage
will occur on any Distribution  Date if (i) as of  such Distribution Date as  to
which  any such reduction applies, 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 Mortgage Loans in foreclosure and  Mortgage Loans with respect to which  the
related  Mortgaged Property  has been acquired  by the Trust  Estate) is greater
than or  equal to  50% of  the sum  of the  then-outstanding Class  M  Principal
Balance  and the then-outstanding Class B  Principal Balance, or (ii) cumulative
Realized Losses  with  respect to  the  Mortgage Loans  exceed  (a) 30%  of  the
principal  balance of the Subordinated Certificates  as of the Cut-Off Date (the
"Original Subordinated Principal
 
                                      S-37
<PAGE>
Balance") if such Distribution Date occurs  between and including            and
         ,  (b)  35%  of the  Original  Subordinated Principal  Balance  if such
Distribution Date occurs between and including           and          , (c)  40%
of  the Original Subordinated Principal Balance if such Distribution Date occurs
between and including              and              ,  (d) 45%  of the  Original
Subordinated  Principal  Balance if  such Distribution  Date occurs  between and
including            and            , and (e)  50% of the Original  Subordinated
Principal  Balance if such Distribution Date occurs  during or after           .
This disproportionate allocation of certain  unscheduled payments in respect  of
principal  will have the effect of accelerating  the amortization of the Class A
Certificates while, in the absence  of Realized Losses, increasing the  interest
in  the principal  balance of the  Mortgage Loans  evidenced by the  Class M and
Class B Certificates.  Increasing the  respective interest  of the  Class M  and
Class B Certificates relative to that of the Class A Certificates is intended to
preserve the availability of the subordination provided by the Class M and Class
B  Certificates.  See "--  Subordination of  Class M  and Class  B Certificates"
below.  The  "Subordinated  Percentage"  for  any  Distribution  Date  will   be
calculated  as the difference between  100% and the Class  A Percentage for such
date. The "Subordinated Prepayment Percentage" for any Distribution Date will be
calculated as the difference between 100% and the Class A Prepayment  Percentage
for  such  date. If  on  any Distribution  Date the  allocation  to the  Class A
Certificates of full and partial principal prepayments and other amounts in  the
percentage required above would reduce the outstanding Class A Principal Balance
below zero, the Class A Prepayment Percentage for such Distribution Date will be
limited  to the percentage necessary to reduce  the Class A Principal Balance to
zero.
 
    CALCULATION OF AMOUNT TO BE DISTRIBUTED TO THE CLASS AP CERTIFICATES
 
    Distributions in reduction of the Class AP Principal Balance will be made on
each Distribution Date in  an aggregate amount equal  to the Class AP  Principal
Distribution  Amount. The "Class AP  Principal Distribution Amount" with respect
to any Distribution Date will be equal to the sum of (i) the amount  distributed
pursuant   to  priority  THIRD  clause  (B)  of  the  Pool  Distribution  Amount
Allocation, in an aggregate amount up  to the Class AP Optimal Principal  Amount
and  (ii)  the  amount  distributed  pursuant to  priority  FOURTH  of  the Pool
Distribution Amount  Allocation, in  an  aggregate amount  up  to the  Class  AP
Deferred Amount.
 
    The  "Class AP Optimal  Principal Amount" with  respect to each Distribution
Date will be  an amount  equal to  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 Class  AP Fraction for such Mortgage Loan and
(B) the sum of:
 
    (i) the scheduled  payment of  principal due on  such Mortgage  Loan on  the
       first  day of the month  in which the Distribution  Date occurs, less, if
       the Bankruptcy Loss Amount is zero, the principal portion of Debt Service
       Reductions with respect to such Mortgage Loan,
 
    (ii) the Scheduled Principal Balance of such Mortgage Loan which, during the
       month preceding the month of such Distribution Date was repurchased by  a
       Representing  Party, as described  under the heading  "Description of the
       Mortgage Loans -- Mandatory Repurchase or Substitution of Mortgage Loans"
       herein,
 
    (iii) the sum of (a) the aggregate net Liquidation Proceeds (other than  net
       Partial  Liquidation Proceeds)  on any such  Mortgage Loan  that became a
       Liquidated Loan  during  such  preceding  month  (excluding  the  portion
       thereof,  if any, constituting Net Foreclosure Profits), less the amounts
       allocable to principal of  any unreimbursed Periodic Advances  previously
       made  with respect to  such Liquidated Loan  and the portion  of such net
       Liquidation Proceeds  allocable to  interest and  (b) the  aggregate  net
       Partial  Liquidation Proceeds  on any  such Mortgage  Loan received  by a
       Servicer on  or  after the  Determination  Date occurring  in  the  month
       preceding  the month in which such  Distribution Date occurs and prior to
       the Determination Date occurring in the month in which such  Distribution
       Date  occurs, less the amounts allocable to principal of any unreimbursed
       Periodic Advances and the portion of the net Partial Liquidation Proceeds
       allocable to interest,
 
                                      S-38
<PAGE>
    (iv) the Scheduled  Principal Balance of  such Mortgage Loan  which was  the
       subject  of a  principal prepayment  in full  during the  period from and
       including the Determination Date in the month preceding the month of such
       Distribution Date  up  to  (but not  including)  the  Determination  Date
       occurring in the month of such Distribution Date,
 
    (v) all partial principal prepayments received by a Servicer on or after the
       Determination  Date occurring in  the month preceding  the month in which
       such Distribution  Date  occurs  and  prior  to  the  Determination  Date
       occurring in the month in which such Distribution Date occurs, and
 
    (vi)  the  difference  between  the unpaid  principal  balance  of  any 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,  less  the amount
       allocable to  the  principal  portion of  any  unreimbursed  advances  in
       respect  of such defective Mortgage Loan.  See "The Pooling and Servicing
       Agreement --  Assignment  of  Mortgage  Loans  to  the  Trustee"  in  the
       Prospectus.
 
    The  "Class  AP Deferred  Amount"  for any  Distribution  Date prior  to the
Cross-Over Date will equal the difference between (A) the sum of (i) the  amount
by  which the Class AP Optimal Principal Amount for all prior Distribution Dates
exceeds the  amounts distributed  on the  Class AP  Certificates on  such  prior
Distribution   Dates  pursuant  to  priority  THIRD,  clause  (B)  of  the  Pool
Distribution Amount Allocation,  but only to  the extent such  shortfall is  not
attributable  to  Realized  Losses allocated  to  the Class  AP  Certificates as
described in "-- Subordination of Class M and Class B Certificates -- Allocation
of Losses" below and (ii) the sum of the product for each Discount Mortgage Loan
which became a Liquidated Loan in any  month preceding the month of the  current
Distribution  Date of (a) the Class AP  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
Discount Mortgage Loan  other than  Excess Special Hazard  Losses, Excess  Fraud
Losses  and Excess Bankruptcy Losses and (B) amounts distributed on the Class AP
Certificates on prior Distribution Dates pursuant to priority FOURTH of the Pool
Distribution Amount Allocation. On  or after the Cross-Over  Date, the Class  AP
Deferred  Amount will be zero. No interest  will accrue on any Class AP Deferred
Amount.
 
    The "Class AP  Fraction" with  respect to  any Discount  Mortgage Loan  will
equal  the  difference  between 1.0  and  the  Classes A/M/B  Fraction  for such
Mortgage Loan. The Class AP Fraction with respect to each Mortgage Loan that  is
not a Discount Mortgage Loan will be zero.
 
    The  "Pool Balance (Class AP Portion)" is the sum for each Discount Mortgage
Loan of the product of the Scheduled Principal Balance of such Mortgage Loan and
the Class AP Fraction for such Mortgage Loan.
 
    CALCULATION OF AMOUNT TO BE DISTRIBUTED TO THE CLASS M CERTIFICATES
 
    Distributions  in  reduction  of  the  principal  balance  of  the  Class  M
Certificates  will  be  made on  each  Distribution Date,  pursuant  to priority
SEVENTH of the Pool Distribution Amount Allocation, in an aggregate amount  (the
"Class  M Principal Distribution  Amount"), up to the  Class M Optimal Principal
Amount.
 
    The "Class M  Optimal Principal  Amount" with respect  to each  Distribution
Date  will be  an amount  equal to  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 Classes A/M/B Fraction for such Mortgage  Loan
and (B) the sum of:
 
    (i)  the Class M Percentage of (a) the scheduled payment of principal due on
       such  Mortgage  Loan  on  the  first  day  of  the  month  in  which  the
       Distribution Date occurs, less (b) if the Bankruptcy Loss Amount is zero,
       the  principal portion  of Debt Service  Reductions with  respect to such
       Mortgage Loan,
 
                                      S-39
<PAGE>
    (ii) 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  a Representing Party, as described
       under the  heading  "Description  of  the  Mortgage  Loans  --  Mandatory
       Repurchase or Substitution of Mortgage Loans" herein,
 
    (iii) the Class M Prepayment Percentage of (a) the aggregate net Liquidation
       Proceeds  (other  than  net  Partial Liquidation  Proceeds)  on  any such
       Mortgage Loan that became a  Liquidated Loan during such preceding  month
       (excluding  the  portion thereof,  if  any, constituting  Net Foreclosure
       Profits), less the  amounts allocable  to principal  of any  unreimbursed
       Periodic  Advances previously made  with respect to  such Liquidated Loan
       and the portion of  such net Liquidation  Proceeds allocable to  interest
       and  (b)  the  aggregate net  Partial  Liquidation Proceeds  on  any such
       Mortgage Loan received by a Servicer  on or after the Determination  Date
       occurring  in the  month preceding the  month in  which such Distribution
       Date occurs and prior to the Determination Date occurring in the month in
       which such  Distribution  Date  occurs, less  the  amounts  allocable  to
       principal  of any unreimbursed  Periodic Advances and  the portion of the
       net Partial Liquidation Proceeds allocable to interest,
 
    (iv) the Class M Prepayment Percentage of the Scheduled Principal Balance of
       such Mortgage Loan  which was the  subject of a  principal prepayment  in
       full  during the period from and  including the Determination Date in the
       month preceding  the month  of  such Distribution  Date  up to  (but  not
       including)  the  Determination  Date  occurring  in  the  month  of  such
       Distribution Date,
 
    (v) the Class M Prepayment  Percentage of all partial principal  prepayments
       received by a Servicer with respect to such Mortgage Loan on or after the
       Determination  Date occurring in  the month preceding  the month in which
       such Distribution  Date  occurs  and  prior  to  the  Determination  Date
       occurring in the month in which such Distribution Date occurs, and
 
    (vi)  the Class M Percentage of  the difference between the unpaid principal
       balance of any 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,
       less the  amounts allocable  to principal  of any  unreimbursed  Periodic
       Advances  with respect to such defective  Mortgage Loan. See "The Pooling
       and Servicing Agreement -- Assignment  of Mortgage Loans to the  Trustee"
       in the Prospectus.
 
    The  principal distribution to  the holders of Class  M Certificates will be
reduced on any Distribution Date on which (i) the principal balance of the Class
M Certificates on the following Determination Date would be reduced to zero as a
result of principal distributions or allocation of losses and (ii) the principal
balance of  any  Senior Certificates  would  be  subject to  reduction  on  such
Determination  Date as  a result  of allocation  of Realized  Losses (other than
Excess Bankruptcy Losses, Excess Fraud Losses and Excess Special Hazard Losses).
The amount of any such reduction in the principal distributed to the holders  of
Class  M Certificates will instead be distributed pro rata to the holders of the
Class A Certificates.
 
    In addition, in the event that there is any recovery of an amount in respect
of principal which had previously been allocated as a Realized Loss to the Class
M Certificates, the  Class M  Certificates will be  entitled to  their pro  rata
share  of such recovery up to the amount  by which the Class M Principal Balance
was reduced as a result of such Realized Loss.
 
    The "Class  M  Percentage"  and  "Class M  Prepayment  Percentage"  for  any
Distribution  Date will  equal that portion  of the  Subordinated Percentage and
Subordinated Prepayment  Percentage, as  the  case may  be, represented  by  the
fraction  the  numerator  of which  is  the then-outstanding  Class  M Principal
Balance and the denominator of which is the sum of the Class M Principal Balance
and, if  any of  the Subclasses  of the  Class B  Certificates are  entitled  to
principal distributions for such Distribution Date as described below, the Class
B   Subclass  Principal  Balances  of   the  Subclasses  entitled  to  principal
distributions.
 
                                      S-40
<PAGE>
    In the event that on any  Distribution Date, the Current Class M  Fractional
Interest  is less than the Original Class  M Fractional Interest, then the Class
B-1, Class B-2,  Class B-3, Class  B-4 and  Class B-5 Certificates  will not  be
entitled  to  distributions in  respect of  principal and  the Class  B Subclass
Principal Balances thereof will not be used to determine the Class M  Percentage
and  Class  M  Prepayment  Percentage  for  such  Distribution  Date.  For  such
Distribution Date, the Class M Percentage and Class M Prepayment Percentage will
equal the Subordinated  Percentage and the  Subordinated Prepayment  Percentage,
respectively.  In the event that the  Current Class M Fractional Interest equals
or exceeds the Original  Class M Fractional Interest  but the Current Class  B-1
Fractional Interest is less than the Original Class B-1 Fractional Interest, the
Class  B-2, Class B-3, Class B-4 and Class B-5 Certificates will not be entitled
to distributions in  respect of  principal and  the Class  B Subclass  Principal
Balances of such Subclasses will not be used to determine the Class M Percentage
and  the Class M Prepayment Percentage for  such Distribution Date. In the event
that each of the Current Class M  Fractional Interest and the Current Class  B-1
Fractional  Interest equals or exceeds the  Original Class M Fractional Interest
and the Original Class  B-1 Fractional Interest,  respectively, but the  Current
Class  B-2 Fractional  Interest is less  than the Original  Class B-2 Fractional
Interest, the  Class B-3,  Class B-4  and  Class B-5  Certificates will  not  be
entitled  to  distributions in  respect of  principal and  the Class  B Subclass
Principal Balances of such Subclasses will not be used to determine the Class  M
Percentage  and the Class M Prepayment Percentage for such Distribution Date. In
the event that  each of  the Current Class  M Fractional  Interest, the  Current
Class  B-1 Fractional  Interest and  the Current  Class B-2  Fractional Interest
equals or exceeds the Original Class  M Fractional Interest, the Original  Class
B-1  Fractional  Interest  and  the  Original  Class  B-2  Fractional  Interest,
respectively, but the  Current Class B-3  Fractional Interest is  less than  the
Original Class B-3 Fractional Interest, the Class B-4 and Class B-5 Certificates
will  not be entitled to  distributions in respect of  principal and the Class B
Subclass Principal Balances of such Subclasses will not be used to determine the
Class M Percentage and the Class  M Prepayment Percentage for such  Distribution
Date.  In the event  that each of  the Current Class  M Fractional Interest, the
Current Class B-1 Fractional Interest, the Current Class B-2 Fractional Interest
and the Current  Class B-3 Fractional  Interest equals or  exceeds the  Original
Class  M Fractional  Interest, the Original  Class B-1  Fractional Interest, the
Original Class B-2  Fractional Interest  and the Original  Class B-3  Fractional
Interest,  respectively, but the  Current Class B-4  Fractional Interest is less
than the Original Class B-4 Fractional Interest, the Class B-5 Certificates will
not be  entitled  to distributions  in  respect of  principal  and the  Class  B
Subclass  Principal Balance of such  Subclass will not be  used to determine the
Class M Percentage and the Class  M Prepayment Percentage for such  Distribution
Date.  The Class B-5  Certificates will not have  original or current fractional
interests which are required to be maintained as described above.
 
    The "Original Class  M Fractional  Interest" is the  percentage obtained  by
dividing the sum of the initial Class B Subclass Principal Balances of the Class
B-1,  Class B-2, Class B-3,  Class B-4 and Class B-5  Certificates by the sum of
the initial Class  A Principal Balance,  initial Class M  Principal Balance  and
initial  Class B Principal Balance. The  Original Class M Fractional Interest is
expected to be approximately    %. The "Current Class M Fractional Interest" for
any Distribution Date  is the  percentage obtained by  dividing the  sum of  the
then-outstanding  Class B  Subclass Principal Balances  of the  Class B-1, Class
B-2, Class B-3, Class  B-4 and Class  B-5 Certificates by the  sum of the  then-
outstanding  Class A  Principal Balance, the  Class M Principal  Balance and the
Class B Principal Balance.
 
    The "Original Class B-1 Fractional  Interest" is the percentage obtained  by
dividing the sum of the initial 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 initial
Class A Principal Balance, initial Class M Principal Balance and initial Class B
Principal Balance. The Original Class B-1 Fractional Interest is expected to  be
approximately       %.  The  "Current  Class B-1  Fractional  Interest"  for any
Distribution Date  is  the  percentage  obtained by  dividing  the  sum  of  the
then-outstanding  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  then-outstanding
Class  A  Principal Balance,  the  Class M  Principal  Balance and  the  Class B
Principal Balance.
 
                                      S-41
<PAGE>
    The "Original Class B-2 Fractional  Interest" is the percentage obtained  by
dividing the sum of the initial Class B Subclass Principal Balances of the Class
B-3,  Class B-4  and Class B-5  Certificates by the  sum of the  initial Class A
Principal Balance,  initial  Class  M  Principal Balance  and  initial  Class  B
Principal  Balance. The Original Class B-2 Fractional Interest is expected to be
approximately       %. The  "Current  Class  B-2 Fractional  Interest"  for  any
Distribution  Date  is  the  percentage  obtained by  dividing  the  sum  of the
then-outstanding Class B Subclass Principal Balances of the Class B-3, Class B-4
and Class B-5 Certificates by the sum of the then-outstanding Class A  Principal
Balance, the Class M Principal Balance and the Class B Principal Balance.
 
    The  "Original Class B-3 Fractional Interest"  is the percentage obtained by
dividing the sum of the initial Class B Subclass Principal Balances of the Class
B-4 and Class  B-5 Certificates  by the  sum of  the initial  Class A  Principal
Balance,  initial  Class  M  Principal Balance  and  initial  Class  B Principal
Balance.  The  Original  Class  B-3  Fractional  Interest  is  expected  to   be
approximately       %.  The  "Current  Class B-3  Fractional  Interest"  for any
Distribution Date  is  the  percentage  obtained by  dividing  the  sum  of  the
then-outstanding  Class B Subclass Principal Balances of the Class B-4 and Class
B-5 Certificates by the sum of  the then-outstanding Class A Principal  Balance,
the Class M Principal Balance and the Class B Principal Balance.
 
    The  "Original Class B-4 Fractional Interest"  is the percentage obtained by
dividing the  initial  Class B  Subclass  Principal  Balance of  the  Class  B-5
Certificates  by the sum of the initial Class A Principal Balance, initial Class
M Principal Balance and  initial Class B Principal  Balance. The Original  Class
B-4 Fractional Interest is expected to be approximately    %. The "Current Class
B-4 Fractional Interest" for any Distribution Date is the percentage obtained by
dividing  the then-outstanding Class  B Subclass Principal  Balance of the Class
B-5 Certificates by the sum of  the then-outstanding Class A Principal  Balance,
the Class M Principal Balance and the Class B Principal Balance.
 
    ALLOCATION OF AMOUNT TO BE DISTRIBUTED
 
    On  each Distribution Date occurring prior to the Cross-Over Date, the Class
A Principal  Distribution Amount  will  be allocated  among and  distributed  in
reduction  of the Class A Subclass Principal Balances of the other Subclasses of
Class A Certificates as follows:
 
                        [INSERT DISTRIBUTION PRIORITIES]
 
    As used above, the "PAC Principal Amount" for any Distribution Date and  for
the  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.
 
    As  used above, the "TAC Principal Amount" for any Distribution Date and for
the TAC 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.
 
    Notwithstanding the foregoing,  on each  Distribution Date  occurring on  or
after  the Cross-Over  Date, the Class  A Principal Distribution  Amount will be
distributed among the Subclasses of Class A Certificates pro rata in  accordance
with  their respective outstanding  Class A Subclass  Principal Balances without
regard to either the proportions or the priorities set forth above.
 
                                      S-42
<PAGE>
    Any  amounts distributed on  a Distribution Date  to the holders  of Class A
Certificates in  reduction of  principal  balance will  be allocated  among  the
holders  of Class A  Certificates of such  Subclass pro rata  in accordance with
their respective Percentage Interests.  Amounts distributed on any  Distribution
Date  to the holders  of the Class AP  and Class M  Certificates in reduction of
principal balance will  be allocated among  the holders of  each such Class  pro
rata in accordance with their respective Percentage Interests.
 
    The  following tables set forth for each Distribution Date the planned Class
A Subclass Principal Balance for the  PAC Certificates and the targeted Class  A
Subclass  Principal  Balance  of  the  TAC  Certificates,  each  expressed  as a
percentage of the initial Class A Subclass Principal Balance.
 
            PLANNED CLASS A SUBCLASS PRINCIPAL BALANCE AS PERCENTAGE
   OF THE INITIAL CLASS A SUBCLASS PRINCIPAL BALANCE OF THE PAC CERTIFICATES
 
<TABLE>
<CAPTION>
                                                   PERCENTAGE OF
                                                  INITIAL CLASS A
                                                      SUBCLASS
DISTRIBUTION DATE                                PRINCIPAL BALANCE
- ---------------------------------------------  ----------------------
<S>                                            <C>
</TABLE>
 
           TARGETED CLASS A SUBCLASS PRINCIPAL BALANCE AS PERCENTAGE
   OF THE INITIAL CLASS A SUBCLASS PRINCIPAL BALANCE OF THE TAC CERTIFICATES
 
<TABLE>
<CAPTION>
                                                   PERCENTAGE OF
                                                  INITIAL CLASS A
                                                      SUBCLASS
DISTRIBUTION DATE                                PRINCIPAL BALANCE
- ---------------------------------------------  ----------------------
<S>                                            <C>
</TABLE>
 
    PRINCIPAL PAYMENT CHARACTERISTICS OF THE PAC CERTIFICATES, THE TAC
CERTIFICATES AND THE COMPANION CERTIFICATES
 
    The percentages of the  initial Class A Subclass  Principal Balances of  the
PAC Certificates and the TAC Certificates set forth in the preceding tables were
calculated  using the  assumptions described  in the       paragraph  on page S-
herein. Based on such assumptions, the Class A Subclass Principal Balance of the
PAC Certificates  would be  reduced to  the percentage  of its  initial Class  A
Subclass   Principal  Balance  indicated  in   the  preceding  tables  for  each
Distribution Date if  prepayments on the  Mortgage Loans occur  at any  constant
rate  between approximately     %  SPA (as defined  herein under "Prepayment and
Yield Considerations") and approximately     %  SPA. Based on such  assumptions,
the  Class A Subclass Principal Balance of the TAC Certificates would be reduced
to the percentage  of its Class  A Subclass Principal  Balance indicated in  the
preceding tables for each Distribution Date if prepayments on the Mortgage Loans
occur  at a  CONSTANT rate  of approximately      %  SPA. However,  IT IS HIGHLY
UNLIKELY THAT PRINCIPAL  PREPAYMENTS ON  THE MORTGAGE  LOANS WILL  OCCUR AT  ANY
CONSTANT  RATE  OR THAT  THE MORTGAGE  LOANS WILL  PREPAY AT  THE SAME  RATE. In
addition, even if principal  prepayments were to occur  at constant rate,  there
may  be differences between the characteristics of the mortgage loans ultimately
included  in   the   Trust   Estate   and   the   Mortgage   Loans   which   are
 
                                      S-43
<PAGE>
expected  to  be  included, as  described  herein.  Therefore, there  can  be no
assurance that the Class A Subclass Principal Balance of the PAC Certificates or
the TAC Certificates, after the application  of the distributions to be made  on
any Distribution Date, will be equal to the applicable percentage of the initial
Class  A Subclass Principal Balance for  such Distribution Date specified in the
preceding tables.
 
    As  discussed  under  "Prepayment  and  Yield  Considerations"  herein,  the
weighted  average life of a Subclass or  Class of Offered Certificates refers to
the average amount of time  that will elapse from the  date of issuance of  such
Subclass  or Class until  each dollar in  reduction of the  principal balance of
such Subclass or Class is distributed to investors. The weighted average life of
each Subclass of Class A Certificates  will be affected, to varying degrees,  by
the  rate of principal  payments (including prepayments)  on the Mortgage Loans,
the timing of changes in such rate of payment and the priority of  distributions
in  reduction  of  principal of  the  Class  A Certificates  and  the  timing of
reductions of  the  principal balances  of  the  PAC Certificates  and  the  TAC
Certificates  and to  their respective  planned principal  balances and targeted
principal balances. The interaction of these factors may have different  effects
on  the Subclasses of  Class A Certificates, including  the PAC Certificates and
the TAC Certificates,  and the  effects on any  Subclass may  vary at  different
times during the life of such Subclass. Further, to the extent that the purchase
prices  paid  by  investors for  the  Class  A Certificates,  including  the PAC
Certificates and the TAC Certificates  represent discounts or premiums to  their
respective initial principal balances, variability in the weighted average lives
of  such  Certificates could  result  in variability  in  the related  yields to
maturity. See "Prepayment and Yield Considerations" herein.
 
    The weighted average lives of the PAC Certificates will vary under different
prepayment scenarios.  To  the extent  that  principal prepayments  occur  at  a
CONSTANT rate that is slower than approximately    % SPA with respect to the PAC
Certificates,  the Class  A Principal  Distribution Amount  on each Distribution
Date may be  insufficient to make  distributions in reduction  of the  principal
balances  of the PAC Certificates in an amount that would reduce their principal
balance to  their planned  principal  balance for  such Distribution  Date.  The
weighted  average lives  of the PAC  Certificates may therefore  be extended, as
illustrated by the tables on page S-  .
 
    To the extent that such principal prepayments occur at a CONSTANT rate  that
is  higher than approximately    % SPA with respect to the PAC Certificates, the
weighted average lives of the PAC Certificates may be shortened, as  illustrated
by the tables on page S-  .
 
    To the extent that principal prepayments are made at a CONSTANT rate that is
slower than approximately    % SPA, the Class A Principal Distribution Amount on
each Distribution Date may be insufficient to make distributions in reduction of
the  principal balance of  the TAC Certificates  in an amount  that would reduce
their  principal  balance   to  their  targeted   principal  balance  for   such
Distribution  Date.  The  weighted average  lives  of the  TAC  Certificates may
therefore be extended, as illustrated by the tables on page S-  . To the  extent
that  such principal prepayments  occur at a  CONSTANT rate that  is higher than
approximately    % SPA, the  weighted average lives of the TAC Certificates  may
be shortened as illustrated by the tables on page S-  .
 
    The  weighted  average life  of the  Companion  Certificates will  be highly
sensitive to  the rate  of  principal payments  (including prepayments)  on  the
Mortgage Loans. See "Prepayment and Yield Considerations" herein.
 
    The  extent to which the planned principal balances will be achieved and the
sensitivity of the  PAC Certificates  to principal prepayments  on the  Mortgage
Loans  will depend, in part, upon the  period of time during which the Companion
Certificates and the TAC Certificates  remain outstanding. On each  Distribution
Date,  the excess of the  Class A Principal Amount  of the PAC Principal Amounts
("Excess Principal Payment") for such  Distribution Date will be distributed  to
the  Companion Certificates and the TAC Certificates before being distributed to
the PAC  Certificates, in  accordance with  the proportions  and priorities  set
forth  above under "-- Allocation of Amount to be Distributed." This is intended
to decrease the likelihood  that the principal balance  of the PAC  Certificates
will  be reduced  below the  planned principal  balance on  a given Distribution
Date. As  such, and  in  accordance with  the  priorities described  above,  the
Companion    Certificates   and   the   TAC   Certificates   support   the   PAC
 
                                      S-44
<PAGE>
Certificates. However, under certain  relatively fast prepayment scenarios,  the
PAC  Certificates may continue to be outstanding  when the Subclasses of Class A
Certificates that support the PAC Certificates are no longer outstanding.  Under
such  circumstances, all  Excess Principal Payments  will be applied  to the PAC
Certificates and in accordance with the priorities described herein. Thus,  when
the  principal balances of  the Companion Certificates  and the TAC Certificates
have been reduced to  zero, the PAC Certificates,  if then outstanding will,  in
accordance  with the  proportions and  priorities set  forth above,  become more
sensitive to the rate of prepayment on the Mortgage Loans as such Subclass  will
receive  all Excess  Principal Payments until  the principal balance  of the PAC
Certificates has been reduced to zero. Conversely, under certain relatively slow
prepayment scenarios,  the Class  A  Principal Distribution  Amount may  not  be
sufficient  to pay the PAC Principal Amount  for the PAC Certificates on a given
Distribution Date.  In  such  cases,  the Class  A  Principal  Amount  for  each
subsequent  Distribution Date will be applied  in accordance with the priorities
described herein such that the  Companion Certificates and the TAC  Certificates
will  not receive  any distributions  in reduction  of their  principal balances
until the outstanding principal balance of the PAC Certificates has reached  the
planned  principal balance for such Distribution Date. As a result, the weighted
average life of the PAC Certificates may  be extended if such Subclass does  not
receive its PAC Principal Amount on a Distribution Date.
 
    The extent to which the targeted principal balances will be achieved and the
sensitivity  of the  TAC Certificates to  principal prepayments  on the Mortgage
Loans will depend, in part, upon the  period of time during which the  Companion
Certificates  remain outstanding.  On each  Distribution Date,  Excess Principal
Payments over  the TAC  Principal  Amount for  such  Distribution Date  will  be
distributed  to the Companion Certificates, before  being distributed to the TAC
Certificates, in  accordance  with the  priorities  set forth  above  under  "--
Allocation  of  Amount to  be  Distributed." This  is  intended to  decrease the
likelihood that the principal  balance of the TAC  Certificates will be  reduced
below  the targeted principal balance on such Distribution Date. As such, and in
accordance with  the  priorities  described above,  the  Companion  Certificates
support  the TAC Certificates. However, under certain relatively fast prepayment
scenarios, the  TAC  Certificates  may  continue  to  be  outstanding  when  the
Companion  Certificates are no longer outstanding. Under such circumstances, all
Excess Principal Payments will  be applied to the  TAC Certificates. Thus,  when
the  principal balance of  the Companion Certificates has  been reduced to zero,
the TAC  Certificates,  if  then  outstanding,  will,  in  accordance  with  the
proportions  and priorities set forth herein,  become more sensitive to the rate
of prepayment on  the Mortgage Loans  as such Subclass  will receive all  Excess
Principal  Payments until the principal balance of the TAC Certificates has been
reduced to zero. Conversely, under certain relatively slow prepayment scenarios,
Excess Principal  Payments,  if  any, may  not  be  sufficient to  pay  the  TAC
Principal  Amount for the TAC Certificates on a given Distribution Date. In such
cases, Excess Principal Payments for  such subsequent Distribution Date will  be
applied  in accordance with the proportions and priorities described herein such
that the Companion Certificates will not receive any distributions in  reduction
of  their principal balance  until the outstanding principal  balance of the TAC
Certificates has reached  the targeted principal  balance for such  Distribution
Date.  As a  result, the weighted  average life  of the TAC  Certificates may be
extended if such  Subclass does  not receive its  TAC Principal  Amount on  such
Distribution Date.
 
    Because  any Excess  Principal Payments  for any  Distribution Date  will be
distributed to  Certificateholders on  such Distribution  Date, the  ability  to
distribute the PAC Principal Amount and TAC Principal Amount on any Distribution
Date  will not be enhanced by the averaging of high and low principal prepayment
rates on the  Mortgage Loans over  several Distribution Dates,  as might be  the
case if any such Excess Principal Payments were held for future applications and
not distributed monthly. There is no assurance that, with respect to the Class A
Principal  Amount  (i)  distributions  in  reduction  of  the  Class  A Subclass
Principal Balance  of the  PAC Certificates  or the  TAC Certificates  will  not
commence  significantly earlier  than the first  Distribution Date  shown in the
preceding tables relating to such  Subclass, (ii) distributions in reduction  of
the Class A Subclass Principal Balance of
 
                                      S-45
<PAGE>
PAC  Certificates or the TAC Certificates  will not commence significantly later
than the first Distribution Date shown in the preceding tables relating to  such
Subclass  or (iii) the Class A Subclass Principal Balance of PAC Certificates or
the TAC  Certificates will  not  be reduced  to  zero significantly  earlier  or
significantly  later  than the  last Distribution  Date  shown in  the preceding
tables.
 
EXAMPLE OF DISTRIBUTION TO CERTIFICATEHOLDERS
 
    The following  chart  sets  forth  an example  of  the  application  of  the
provisions  described above under "-- Distributions"  to the first two months of
the Trust Estate's existence:
 
<TABLE>
<CAPTION>
1(A).........................  Cut-Off Date.
<S>                            <C>
2 -- 31(B)...................  The applicable Servicer receives any liquidation
                               proceeds for liquidated Mortgage Loans and interest
                               thereon to date of liquidation.
31(C)........................  Record Date.
1 -- 16(D)...................  The applicable Servicer receives scheduled payments
                               of principal and interest due on 1.
17(E)........................  Determination Date.
18(F)........................  Remittance Date.
25(G)........................  Distribution Date
</TABLE>
 
- ------------------------
(A) The initial unpaid principal balance of the Mortgage Loans in a Trust Estate
    would be the aggregate unpaid principal balance of the Mortgage Loans at the
    close of business on           1, after deducting principal payments due  on
    or  before such date. Those principal payments  due on or before           1
    and the related interest payments, would not be part of the Trust Estate and
    would be remitted by the applicable Servicer to the Seller when received.
 
(B) Liquidation Proceeds received during  this period would  be credited to  the
    Certificate  Account for distribution to  Certificateholders on the February
    25 Distribution Date.  When a Mortgage  Loan is liquidated  or an  insurance
    claim  with respect to  a Mortgage Loan  is settled, interest  on the amount
    liquidated or  received  in  settlement  is collected  only  from  the  last
    scheduled Due Date to the date of liquidation or settlement.
 
(C) Distributions in the month of February will be made to Certificateholders of
    record at the close of business on this date.
 
(D) Schedule  monthly  payments on  the Mortgage  Loans due  on February  1, and
    principal prepayments  and  Partial  Liquidation Proceeds  received  by  the
    applicable  Servicer in  reduction of  the unpaid  principal balance  of any
    Mortgage Loan  prior to  February  17, will  be  deposited in  the  Servicer
    Custodial  Account as received  by such Servicer and  will be distributed to
    Certificateholders  on  the  February  25  Distribution  Date.   Liquidation
    Proceeds  (other  than  Partial  Liquidation  Proceeds),  and  proceeds with
    respect to the repurchase or purchase of any of the Mortgage Loans, in  each
    case  received  during this  period, and  principal prepayments  and Partial
    Liquidation Proceeds received on or after February 17, will be deposited  in
    the Certificate Account but will not be distributed to Certificateholders on
    the February 25 Distribution Date. Instead, such amounts will be credited to
    the  Certificate Account for distribution to Certificateholders on the March
    25 Distribution  Date. When  a Mortgage  Loan is  prepaid in  part and  such
    payment  is applied as of a date other  than a Due Date, interest is charged
    on such payment only to the date applied. To the extent funds are  available
    from  the aggregate Servicing  Fees relating to  mortgagor payments or other
    recoveries distributed  to Certificateholders  on the  related  Distribution
    Date,   the  applicable  Servicer  would   make  an  additional  payment  to
    Certificateholders with respect to any Mortgage Loan that prepaid in full on
    or after the Determination  Date in the month  preceding the month in  which
    such   Distribution  Date  occurs  equal  to   the  amount  of  interest  on
 
                                      S-46
<PAGE>
    such Mortgage Loan at the Net Mortgage Interest Rate for such Mortgage  Loan
    from  the  date of  such prepayment  in full  through the  end of  the month
    preceding the month in which such Distribution Date occurs.
 
(E) As of the close of business on February 17, each Servicer will determine the
    amounts of  Periodic Advances  to be  made by  such Servicer  in respect  of
    Mortgage  Loans serviced thereby and the  Master Servicer will determine the
    amounts  of  principal  and  interest  which  will  be  distributed  to  the
    Certificateholders, including scheduled payments due on or before February 1
    which  have been received on or before the close of business on February 16,
    principal prepayments  and Partial  Liquidation  Proceeds received  by  each
    Servicer  in reduction of the unpaid  principal balance of any Mortgage Loan
    prior  to  February  17  and   liquidation  proceeds  (other  than   Partial
    Liquidation  Proceeds),  and  proceeds  with respect  to  the  repurchase or
    purchase of any of the Mortgage Loans, received during the period commencing
    January 2 and ending on January  31. The Master Servicer will calculate  the
    amounts  to be distributed to each  Class of Certificates and will determine
    the Percentage Interest of each Subclass  or Subclass of Certificates to  be
    used in connection with the March 25 Distribution Date.
 
(F) Each  Servicer will be required  to remit to the  Certificate Account on the
    February 18  Remittance  Date  all  amounts on  deposit  in  the  respective
    Servicer   Custodial   Account   (other  than   amounts   held   for  future
    distribution).
 
(G) The Master Servicer,  or the  paying agent acting  on behalf  of the  Master
    Servicer,  will make distributions to Certificateholders  on the 25th day of
    each month or if such 25th day is  not a business day, on the next  business
    day.
 
    Succeeding  monthly periods  follow the pattern  of (B)  through (F), except
that the period in (B) begins on the seventeenth of the previous month.
 
ADDITIONAL RIGHTS OF THE CLASS A-R CERTIFICATEHOLDER
 
    The Class A-R Certificate will remain  outstanding for as long as the  Trust
Estate  shall exist,  whether or not  either such Subclass  is receiving current
distributions of principal or interest. The holder of the Class A-R  Certificate
will  be entitled to receive  the proceeds of the  remaining assets of the Trust
Estate,  if  any,  on  the  final  Distribution  Date  for  the  Series  199   -
Certificates,  after distributions in respect of any accrued but unpaid interest
on the  Series  199 -  Certificates  and  after distributions  in  reduction  of
principal  balance  have reduced  the  principal balances  of  the Series  199 -
Certificates to  zero. It  is not  anticipated  that there  will be  any  assets
remaining  in  the Trust  Estate on  the final  Distribution Date  following the
distributions of interest  and in  reduction of  principal balance  made on  the
Series 199 - Certificates on such date.
 
    In  addition,  the  Class A-R  Certificateholder  will be  entitled  on each
Distribution Date to receive  any Pool Distribution  Amount remaining after  all
distributions pursuant to the Pool Distribution Amount Allocation have been made
and  any Net Foreclosure Profits. "Net  Foreclosure Profits" means, with respect
to any Distribution Date, the  excess, if any, of  (i) the aggregate profits  on
Liquidated  Loans in  the related period  with respect to  which net Liquidation
Proceeds exceed  the  unpaid principal  balance  thereof plus  accrued  interest
thereon at the Mortgage Interest Rate over (ii) the aggregate Realized Losses on
Liquidated  Loans in  the related period  with respect to  which net Liquidation
Proceeds are  less  than  the  unpaid principal  balance  thereof  plus  accrued
interest thereon at the Mortgage Interest Rate. It is not anticipated that there
will  be any such Net  Foreclosure Profits or undistributed  portion of the Pool
Distribution Amounts.
 
PERIODIC ADVANCES
 
    If, on any Determination Date, payments of principal and interest due on any
Mortgage Loan  in  the Trust  Estate  on the  related  Due Date  have  not  been
received,  the Servicer of the Mortgage  Loan will, in certain circumstances, be
required to advance on or before  the related Distribution Date for the  benefit
of  holders of  the Series  199 - Certificates  an amount  in cash  equal to all
delinquent payments of principal and interest  due on each Mortgage Loan in  the
Trust Estate (with interest
 
                                      S-47
<PAGE>
adjusted  to the applicable Net Mortgage Interest Rate) not previously advanced,
but only to the  extent that such  Servicer believes that  such amounts will  be
recoverable  by it from  liquidation proceeds or other  recoveries in respect of
the related  Mortgage  Loan (each,  a  "Periodic Advance").  Upon  a  Servicer's
failure  to make a required  Periodic Advance, the Trustee,  if such Servicer is
Norwest Mortgage,  or the  Master  Servicer, if  such  Servicer is  not  Norwest
Mortgage, will be required to make such Periodic Advance.
 
    The  Underlying Servicing Agreements and the Pooling and Servicing Agreement
provide that any advance of the kind described in the preceding paragraph may be
reimbursed to the  related Servicer or  the Master Servicer  or the Trustee,  as
applicable,  at any time from funds  available in the Servicer Custodial Account
or the Certificate  Account, as the  case may be,  to the extent  that (i)  such
funds  represent receipts on, or  liquidation, insurance, purchase or repurchase
proceeds in respect of, the Mortgage Loans to which the advance relates or  (ii)
the  Servicer, the Master Servicer or  Trustee, as applicable, has determined in
good faith that the advancing party will be unable to recover such advance  from
funds of the type referred to in clause (i) above.
 
[FOR SERIES WITH A FINANCIAL GUARANTY INSURANCE POLICY:
FINANCIAL SECURITY ASSURANCE INC.
 
    GENERAL.    Financial Security  Assurance Inc.  ("Financial Security")  is a
monoline insurance company incorporated in 1984  under the laws of the State  of
New  York. Financial Security is licensed, directly or through its subsidiaries,
to engage  in  financial guaranty  insurance  business  in all  50  states,  the
District of Columbia and Puerto Rico.
 
    Financial  Security  and its  subsidiaries  are engaged  exclusively  in the
business of  writing financial  guaranty insurance,  principally in  respect  of
securities  offered  in  domestic  and foreign  markets.  In  general, financial
guaranty insurance consists of the issuance of a guaranty of scheduled  payments
of  an  issuer's securities  --  thereby enhancing  the  credit rating  of those
securities -- in  consideration for  the payment of  a premium  to the  insurer.
Financial   Security  and  its  subsidiaries  principally  insure  asset-backed,
collateralized and municipal securities.  Asset-backed securities are  generally
supported   by  residential  mortgage  loans,  consumer  or  trade  receivables,
securities or other assets  having an ascertainable cash  flow or market  value.
Collateralized  securities  include  public  utility  first  mortgage  bonds and
sale/leaseback obligation bonds. Municipal securities consist largely of general
obligation bonds, special revenue bonds  and other special obligations of  state
and  local governments. Financial Security  insures both newly issued securities
sold in the  primary market  and outstanding  securities sold  in the  secondary
market that satisfy Financial Security's underwriting criteria.
 
    Financial  Security  is  a  wholly owned  subsidiary  of  Financial Security
Assurance Holdings Ltd. ("Holdings"), a New York Stock Exchange listed  company.
Major shareholders of Holdings include Fund American Enterprises Holdings, Inc.,
U.S.  West Capital Corporation and the Tokio Marine and Fire Insurance Co., Ltd.
No shareholder of Holdings is obligated to pay any debt of Financial Security or
any claim under any insurance policy issued by Financial Security or to make any
additional contribution to the capital of Financial Security.
 
    The principal executive  offices of  Financial Security are  located at  350
Park Avenue, New York, New York 10022, and its telephone number at that location
is (212) 826-0100. At December 31, 1995, Financial Security and its subsidiaries
had 187 employees.
 
    REINSURANCE.     Pursuant  to  an  intercompany  agreement,  liabilities  on
financial  guaranty  insurance  written  or  reinsured  from  third  parties  by
Financial   Security  or  any  of   its  domestic  operating  insurance  company
subsidiaries are reinsured  among such  companies on  an agreed-upon  percentage
substantially  proportional to  their respective capital,  surplus and reserves,
subject  to  applicable  statutory  risk  limitations.  In  addition,  Financial
Security  reinsures a portion of its  liabilities under certain of its financial
guaranty insurance  policies with  other reinsurers  under various  quota  share
 
                                      S-48
<PAGE>
treaties and on a transaction-by-transaction basis. Such reinsurance is utilized
by  Financial Security as  a risk management  device and to  comply with certain
statutory and rating agency requirements; it  does not alter or limit  Financial
Security's obligations under any financial guaranty insurance policy.
 
    RATING OF CLAIMS-PAYING ABILITY.  Financial Security's claims-paying ability
is  rated "Aaa" by Moody's  and "AAA" by S&P,  Nippon Investors Service Inc. and
Standard & Poor's (Australia) Pty. Ltd.  Such ratings reflect only the views  of
the  respective rating  agencies, are not  recommendations to buy,  sell or hold
securities and are subject to revision or withdrawal at any time by such  rating
agencies.
 
    CAPITALIZATION.    The  following  table sets  forth  the  capitalization of
Financial Security and its wholly owned  subsidiaries on the basis of  generally
accepted accounting principles as of December 31, 1995 (in thousands):
 
<TABLE>
<CAPTION>
                                                                             DECEMBER 31, 1995
                                                                             -----------------
<S>                                                                          <C>
Unearned Premium Reserve (net of prepaid reinsurance premiums).............    $     330,349
Shareholder's Equity:
  Common Stock.............................................................           15,000
  Additional Paid-In Capital...............................................          681,470
  Unrealized Gain on Investments (net of deferred income taxes)............           19,694
  Accumulated Earnings.....................................................           73,822
                                                                             -----------------
Total Shareholder's Equity.................................................    $     789,986
                                                                             -----------------
Total Unearned Premium Reserve and Shareholder's Equity....................    $   1,120,335
                                                                             -----------------
                                                                             -----------------
</TABLE>
 
    For  further information concerning Financial Security, see the Consolidated
Financial Statements  of  Financial Security  and  Subsidiaries, and  the  notes
thereto, incorporated by reference herein. Copies of the statutory quarterly and
annual  statements  filed with  the State  of New  York Insurance  Department by
Financial Security are available upon request to the State of New York Insurance
Department.
 
    INCORPORATION OF  CERTAIN  DOCUMENTS  BY  REFERENCE.   In  addition  to  the
documents described under "Incorporation of Certain Information by Reference" in
the  Prospectus, the consolidated financial statements of Financial Security and
subsidiaries for the year  ended December 31, 1995  included as exhibits to  the
following  document,  which  has been  filed  with the  Securities  and Exchange
Commission by Holdings, are hereby incorporated by reference in the Registration
Statement to which the Prospectus and this Prospectus Supplement form a part:
 
        (a) Annual Report on Form 10-K  of Holdings for the year ended  December
    31,  1995, which Report included as  an exhibit Financial Security's audited
    consolidated financial statements for the year ended December 31, 1995.
 
       [(b) Reference quarterly reports, as applicable.]
 
    All financial statements of Financial Security and Subsidiaries included  in
documents filed by Holdings pursuant to Section 13(a), 13(c), 14 or 15(d) of the
Securities  Exchange Act of 1934, as amended (the "Exchange Act"), subsequent to
the date  of this  Prospectus Supplement  and prior  to the  termination of  the
offering  of the  Certificates shall be  deemed to be  incorporated by reference
into this Prospectus  Supplement and  to be a  part hereof  from the  respective
dates of filing such documents.
 
    INSURANCE  REGULATION.    Financial  Security  is  licensed  and  subject to
regulation as a financial guaranty insurance  corporation under the laws of  the
State  of New York, its  state of domicile. In  addition, Financial Security and
its insurance subsidiaries are  subject to regulation by  insurance laws of  the
various  other jurisdictions  in which  they are licensed  to do  business. As a
financial guaranty insurance corporation licensed to do business in the State of
New York, Financial Security is subject to
 
                                      S-49
<PAGE>
Article 69 of the New York Insurance  Law which, among other things, limits  the
business of each such insurer to financial guaranty insurance and related lines,
requires  that  each  insurer  maintain  a  minimum  surplus  to  policyholders,
establishes contingency, loss and unearned premium reserve requirements for each
such insurer, and limits  the size of  individual transactions ("single  risks")
and  the volume of transactions ("aggregate  risks") that may be underwritten by
each such insurer. Other provisions of the New York Insurance Law, applicable to
non-life insurance companies such as  Financial Security, regulate, among  other
things,   permitted  investments,   payment  of   dividends,  transactions  with
affiliates,  mergers,  consolidations,  acquisitions  or  sales  of  assets  and
incurrence of liability for borrowings.]
 
RESTRICTIONS ON TRANSFER OF THE CLASS A-R AND CLASS M CERTIFICATES
 
    The  Class A-R Certificate will be  subject to the following restrictions on
transfer, and the Class  A-R Certificate will contain  a legend describing  such
restrictions.
 
    The  REMIC provisions of the Code impose certain taxes on (i) transferors of
residual interests to, or agents that  acquire residual interests on behalf  of,
Disqualified Organizations and (ii) certain Pass-Through Entities (as defined in
the  Prospectus) that have  Disqualified Organizations as  beneficial owners. No
tax will be  imposed on  a Pass-Through  Entity with  respect to  the Class  A-R
Certificate  to the extent it  has received an affidavit  from the owner thereof
that such  owner  is  not  a  Disqualified  Organization  or  a  nominee  for  a
Disqualified Organization. The Pooling and Servicing Agreement will provide that
no  legal or beneficial interest in the Class A-R Certificate may be transferred
to or registered in  the name of  any person unless  (i) the proposed  purchaser
provides  to  the Trustee  an affidavit  (or,  to the  extent acceptable  to the
Trustee, a representation letter signed under penalty of perjury) to the  effect
that,  among other items, such transferee is not a Disqualified Organization (as
defined in the Prospectus) and is not purchasing the Class A-R Certificate as an
agent for a  Disqualified Organization  (I.E., as  a broker,  nominee, or  other
middleman thereof) and (ii) the transferor states in writing to the Trustee that
it has no actual knowledge that such affidavit is false. Further, such affidavit
(or  letter) requires the transferee to affirm that it (i) historically has paid
its debts  as they  have come  due and  intends to  do so  in the  future,  (ii)
understands  that it  may incur  tax liabilities with  respect to  the Class A-R
Certificate in excess  of cash  flows generated  thereby, (iii)  intends to  pay
taxes associated with holding the Class A-R Certificate as such taxes become due
and  (iv) will not  transfer the Class  A-R Certificate to  any person or entity
that does  not provide  a similar  affidavit (or  letter). The  transferor  must
certify  in writing to the Trustee that, as  of the date of the transfer, it had
no knowledge or  reason to  know that the  affirmations made  by the  transferee
pursuant to the preceding sentence were false.
 
    In  addition,  the  Class  A-R  Certificate  may  not  be  purchased  by  or
transferred to any person that  is not a "U.S.  Person," unless (i) such  person
holds  such Class A-R Certificate  in connection with the  conduct of a trade or
business within the United States and  furnishes the transferor and the  Trustee
with  an effective  Internal Revenue  Service Form  4224 or  (ii) the transferee
delivers to  both the  transferor and  the Trustee  an opinion  of a  nationally
recognized  tax counsel to the  effect that such transfer  is in accordance with
the requirements of the Code and the regulations promulgated thereunder and that
such transfer of the Class A-R  Certificate will not be disregarded for  federal
income  tax purposes. The term "U.S. Person"  means a citizen or resident of the
United States, a corporation, partnership  or other entity created or  organized
in  or under the laws of the United States or any political subdivision thereof,
or an estate or trust that is  subject to U.S. federal income tax regardless  of
the source of its income.
 
    The  Pooling  and Servicing  Agreement will  provide  that any  attempted or
purported transfer in violation of these transfer restrictions will be null  and
void  and will  vest no  rights in any  purported transferee.  Any transferor or
agent to whom the Trustee provides information as to any applicable tax  imposed
on  such transferor or  agent may be required  to bear the  cost of computing or
providing such  information. See  "Certain Federal  Income Tax  Consequences  --
Federal  Income Tax Consequences for REMIC  Certificates -- Taxation of Residual
Certificates -- Tax-Related Restrictions  on Transfer of Residual  Certificates"
in the Prospectus.
 
                                      S-50
<PAGE>
    The  Class A-R Certificate may not be purchased by or transferred to a Plan.
Because the Class M  Certificates are subordinated  to the Senior  Certificates,
the  Class  M Certificates  may  not be  transferred  unless the  transferee has
delivered (i) a  representation letter  to the  Trustee and  the Seller  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 the
conditions described herein, that the source of funds used to purchase the Class
M Certificates is an "insurance company  general account" or (ii) an opinion  of
counsel   as  described   herein  under   "ERISA  Considerations."   See  "ERISA
Considerations" herein and in the Prospectus.
 
REPORTS
 
    In addition to the applicable  information specified in the Prospectus,  the
Master  Servicer will cause to be included in the statement delivered to holders
of Class A, Class AP and Class M Certificates with respect to each  Distribution
Date the following information: (i) the amount of such distribution allocable to
interest,  the amount  of interest currently  distributable to  each Subclass of
Class A  Certificates and  to the  Class M  Certificates, any  Class A  Subclass
Interest  Shortfall Amount arising with respect to  each Subclass or any Class M
Interest Shortfall Amount on such Distribution Date, any remaining unpaid  Class
A  Subclass  Interest Shortfall  Amount with  respect to  each Subclass,  or any
remaining unpaid Class M Interest Shortfall Amount, after giving effect to  such
distribution and any Non-Supported Interest Shortfall or the interest portion of
Realized  Losses  allocable  to such  Subclass  or  Class with  respect  to such
Distribution Date, (ii) the amount of such distribution allocable to  principal,
(iii) the Class A Principal Balance, the Class AP Principal Balance, the Class M
Principal  Balance, the Class  A Subclass Principal Balance  of each Subclass of
Class A Certificates after  giving effect to the  distribution of principal  and
the allocation of the principal portion of Realized Losses to such Subclass with
respect  to such Distribution Date, (iv)  the Adjusted Pool Amount, the Adjusted
Pool Amount (Class AP Portion) and  the Pool Scheduled Principal Balance of  the
Mortgage  Loans and  the aggregate Scheduled  Principal Balance  of the Discount
Mortgage Loans for such Distribution Date, (v) the Class A Percentage and  Class
M  Percentage  for the  following Distribution  Date  (without giving  effect to
partial prepayments  and net  Partial Liquidation  Proceeds received  after  the
Determination  Date in  the current month  that are  applied as of  the Due Date
occurring in such month),  and (vi) the amount  of the remaining Special  Hazard
Loss  Amount, the  Fraud Loss Amount  and the  Bankruptcy Loss Amount  as of the
close of business  on such  Distribution Date.  See "Servicing  of the  Mortgage
Loans -- Reports to Certificateholders" in the Prospectus.
 
    Copies  of the foregoing  reports are available upon  written request to the
Trustee at its corporate trust office.  See "Pooling and Servicing Agreement  --
Trustee" herein.
 
SUBORDINATION OF CLASS M AND CLASS B CERTIFICATES
 
    The   rights  of  the  holders  of  the  Class  M  Certificates  to  receive
distributions with respect  to the Mortgage  Loans in the  Trust Estate will  be
subordinated  to such rights of  the holders of the  Senior Certificates and the
rights of the holders of the Class B Certificates to receive distributions  with
respect  to the Mortgage Loans in the  Trust Estate will be subordinated to such
rights of the holders of the  Senior Certificates and the Class M  Certificates,
all to the extent described below. This subordination is intended to enhance the
likelihood  of timely receipt by the holders  of the Senior Certificates (to the
extent of the subordination  of the Class  M and Class  B Certificates) and  the
holders  of the Class M Certificates (to  the extent of the subordination of the
Class B Certificates) of the full amount of their scheduled monthly payments  of
interest  and principal and to afford the holders of the Senior Certificates (to
the extent of the subordination of the Class M and Class B Certificates) and the
holders of the Class M Certificates (to  the extent of the subordination of  the
Class  B  Certificates)  protection  against  Realized  Losses,  as  more  fully
described below. If Realized Losses  exceed the credit support provided  through
subordination  to the  Senior Certificates  and the  Class M  Certificates or if
Excess Special Hazard Losses,  Excess Fraud Losses  or Excess Bankruptcy  Losses
occur,  all or a portion of such losses will be borne by the Senior Certificates
and the Class M Certificates.
 
                                      S-51
<PAGE>
    The protection afforded to  the holders of Senior  Certificates by means  of
the subordination feature will be accomplished by the preferential right of such
holders  to receive, prior to any distribution being made on a Distribution Date
in respect of the Class M and Class B Certificates, the amounts of principal and
interest due the Class A Certificateholders and the amount of principal due  the
Class   AP  Certificateholders  on  each  Distribution  Date  out  of  the  Pool
Distribution Amount with respect to such date and, if necessary, by the right of
such holders to receive  future distributions on the  Mortgage Loans that  would
otherwise  have been payable to the holders of Class M and Class B Certificates.
The application of this  subordination to cover  Realized Losses experienced  in
periods  prior to  the periods in  which a  Subclass of Class  A Certificates is
entitled to distributions in  reduction of principal  balance will decrease  the
protection provided by the subordination to any such Subclass.
 
    The  protection afforded to the holders of  Class M Certificates by means of
the subordination feature will be accomplished by the preferential right of such
holders to receive, prior to any distribution being made on a Distribution  Date
in respect of the Class B Certificates, the amounts of principal (other than any
amount  used to pay the  Class AP Deferred Amount) and  interest due the Class M
Certificateholders on each Distribution Date  from the Pool Distribution  Amount
with   respect  to  such  date  (after  all  required  payments  on  the  Senior
Certificates have been made) and, if necessary, by the right of such holders  to
receive  future distributions  on the Mortgage  Loans that  would otherwise have
been payable to the holders of the Class B Certificates.
 
    The  Subclasses  of  Class  B   Certificates  will  be  entitled,  on   each
Distribution  Date, to  the remaining  portion, if  any, of  the applicable Pool
Distribution Amount, after payment  of the Senior Optimal  Amount, the Class  AP
Deferred  Amount  and the  Class  M Optimal  Amount  for such  date.  Amounts so
distributed to  Class  B  Certificateholders  will not  be  available  to  cover
delinquencies or Realized Losses in respect of subsequent Distribution Dates.
 
    ALLOCATION OF LOSSES
 
    Realized  Losses  (other than  Excess  Special Hazard  Losses,  Excess Fraud
Losses or Excess Bankruptcy Losses) will not be allocated to the holders of  the
Senior  Certificates until the date on which the amount of principal payments on
the Mortgage Loans  to which the  holders of the  Subordinated Certificates  are
entitled has been reduced to zero as a result of the allocation of losses to the
Subordinated  Certificates, i.e., the date  on which the Subordinated Percentage
has been  reduced to  zero (the  "Cross-Over Date").  Prior to  such time,  such
Realized   Losses  will  be  allocated  first  to  the  Subclasses  of  Class  B
Certificates sequentially in reverse numerical order, until the Class B Subclass
Principal Balance of each such Subclass has been reduced to zero and then to the
Class M Certificates  until the Class  M Principal Balance  has been reduced  to
zero.
 
    The  allocation of the  principal portion of  a Realized Loss  (other than a
Debt Service Reduction, Excess Special Hazard Loss, Excess Fraud Loss or  Excess
Bankruptcy  Loss)  will  be effected  through  the adjustment  of  the principal
balance of the most subordinate Class (or in the case of the Subclasses of Class
B Certificates, the most subordinate  Subclass) then-outstanding in such  amount
as is necessary to cause the sum of the Class A Subclass Principal Balances, the
Class  AP  Principal Balance,  the Class  M  Principal Balance  and the  Class B
Subclass Principal Balances to equal the Adjusted Pool Amount.
 
    Allocations to the Class M Certificates  or Class B Certificates of (i)  the
principal  portion  of Debt  Service Reductions,  (ii)  the interest  portion of
Realized Losses (other than  Excess Special Hazard  Losses, Excess Fraud  Losses
and  Excess  Bankruptcy Losses),  (iii) any  interest shortfalls  resulting from
delinquencies for which the  Servicer, the Master Servicer  or the Trustee  does
not  advance and (iv) any  interest shortfalls resulting from  the timing of the
receipt of partial  principal prepayments and  net Partial Liquidation  Proceeds
with respect to Mortgage Loans will result from the priority of distributions of
the Pool Distribution Amount first to the holders of the Senior Certificates and
then   to  the  Class   M  Certificateholders  as   described  above  under  "--
Distributions."
 
                                      S-52
<PAGE>
    The allocation of the principal portion of Realized Losses in respect of the
Mortgage Loans  allocated on  or  after the  Cross-Over  Date will  be  effected
through  the  adjustment on  any  Determination Date  of  the Class  A Principal
Balance and  Class AP  Principal Balance  such that  (i) the  Class A  Principal
Balance  equals the Adjusted Pool Amount less the Adjusted Pool Amount (Class AP
Portion) as of the preceding Distribution  Date and (ii) the Class AP  Principal
Balance  equals the Adjusted Pool Amount (Class  AP Portion) as of the preceding
Distribution Date. The principal  portion of such  Realized Losses allocated  to
the  Class A  Certificates will  be allocated  to the  outstanding Subclasses of
Class A  Certificates  pro  rata  in accordance  with  their  Class  A  Subclass
Principal  Balances. The interest  portion of any Realized  Loss allocated on or
after the Cross-Over Date will be allocated among the outstanding Subclasses  of
Class  A  Certificates pro  rata  in accordance  with  their respective  Class A
Subclass Interest Accrual Amounts, without  regard to any reduction pursuant  to
this  sentence. Any such losses will be  allocated among the outstanding Class A
Certificates within each Subclass pro  rata in accordance with their  respective
Percentage Interests.
 
    Any  Excess Special Hazard Losses, Excess  Fraud Losses or Excess Bankruptcy
Losses will  be allocated  (i) with  respect to  the principal  portion of  such
losses (a) to the outstanding Subclasses and Classes of the Class A, Class M and
Class  B Certificates pro rata based  on their outstanding principal balances in
proportion to the Classes A/M/B  Fraction of such losses  and (b) in respect  of
Discount Mortgage Loans, to the Class AP Certificates in proportion to the Class
AP Fraction of such losses and (ii) with respect to the interest portion of such
losses,  to the Class A, Class M and  Class B Certificates pro rata based on the
interest accrued. (Any such losses so allocated to the Class A Certificates will
be allocated among the outstanding Subclasses  of Class A Certificates pro  rata
in  accordance with their  then-outstanding Class A  Subclass Principal Balances
with respect to the principal portion of such losses and their Class A  Subclass
Interest  Accrual  Amounts  without regard  to  any reduction  pursuant  to this
sentence, with respect  to the interest  portion of such  losses, and among  the
outstanding  Class A  Certificates within each  Subclass pro  rata in accordance
with their respective Percentage Interests).
 
    The interest portion of  Excess Special Hazard  Losses, Excess Fraud  Losses
and  Excess Bankruptcy Losses will be allocated by reducing the Class A Subclass
Interest Accrual Amounts, Class M Interest  Accrual Amount and Class B  Subclass
Interest Accrual Amounts.
 
    As  described above, the Pool Distribution  Amount for any Distribution Date
will include  current  receipts  (other than  certain  unscheduled  payments  in
respect  of principal) from  the Mortgage Loans otherwise  payable to holders of
the Class M and  Class B Certificates.  If the Pool  Distribution Amount is  not
sufficient to cover the amount of principal payable to the holders of the Senior
Certificates  on a particular Distribution Date  (other than any portion thereof
representing the  difference between  the Class  A Percentage  of the  Scheduled
Principal  Balances of Liquidated Loans and the Class A Prepayment Percentage of
such amounts), then the percentage of  principal payments on the Mortgage  Loans
to  which the holders  of the Class  A Certificates will  be entitled (I.E., the
Class  A  Percentage)  on  and  after   the  next  Distribution  Date  will   be
proportionately   increased,  thereby  reducing,  as   a  relative  matter,  the
respective interest of the Class M  and Class B Certificates in future  payments
of  principal on the Mortgage Loans in  the Trust Estate. Such a shortfall could
occur, for example, if  a considerable number of  Mortgage Loans were to  become
Liquidated Loans in a particular month.
 
    Special  Hazard Losses,  other than  Excess Special  Hazard Losses,  will be
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. Special
Hazard Losses in excess  of the Special Hazard  Loss Amount are "Excess  Special
Hazard  Losses." Excess  Special Hazard Losses  will be allocated  (i) among the
Class A, Class M  and Class B  Certificates and (ii) to  the extent such  Excess
Special  Hazard Losses arise with respect  to Discount Mortgage Loans, the Class
AP Certificates. If the aggregate of  all Special Hazard Losses incurred in  the
month  preceding  the month  of the  related  Distribution Date  (the "Aggregate
Current Special Hazard  Losses") is less  than or equal  to the  then-applicable
Special  Hazard Loss Amount, no Special Hazard Losses will be regarded as Excess
Special Hazard Losses.  If Aggregate  Current Special Hazard  Losses exceed  the
then-applicable  Special Hazard  Loss Amount, a  portion of  each Special Hazard
Loss will be regarded as  an "Excess Special Hazard  Loss" in proportion to  the
ratio of (a) the
 
                                      S-53
<PAGE>
excess   of  (i)  Aggregate   Current  Special  Hazard   Losses  over  (ii)  the
then-applicable Special Hazard Loss Amount, to (b) the Aggregate Current Special
Hazard Losses. Thereafter,  when the  Special Hazard  Loss Amount  is zero,  all
Special  Hazard Losses  will be regarded  as Excess Special  Hazard Losses. Upon
initial issuance of  the Series  199 -  Certificates, the  "Special Hazard  Loss
Amount"  with respect thereto will be equal to approximately    % (approximately
$      ) of the Cut-Off Date Aggregate Principal Balance of the Mortgage  Loans.
As  of any  Distribution Date,  the Special  Hazard Loss  Amount will  equal the
initial Special Hazard Loss Amount less the sum of (A) any Special Hazard Losses
allocated solely to the Class B or  Class M Certificates and (B) the  Adjustment
Amount.  The "Adjustment Amount" on each anniversary of the Cut-Off Date will be
equal to the amount, if any, by which the Special Hazard Amount, without  giving
effect  to the deduction of the  Adjustment Amount for such anniversary, exceeds
the greater of (i) 1.00% (or, if  greater than 1.00%, the highest percentage  of
Mortgage  Loans  by principal  balance  in any  California  zip code)  times the
aggregate principal balance of all the  Mortgage Loans on such anniversary  (ii)
twice  the  principal balance  of the  single Mortgage  Loan having  the largest
principal balance, and (iii)  that which is necessary  to maintain the  original
ratings  on the  Class A,  Class AP  and Class  M Certificates,  as evidenced by
letters to that  effect delivered by  [Moody's] [Fitch] [DCR]  and [S&P] to  the
Master  Servicer and the Trustee. On and  after the Cross-Over Date, the Special
Hazard Loss Amount will be zero.
 
    Fraud Losses, other than  Excess Fraud Losses, will  be 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. Fraud Losses in excess  of
the  Fraud Loss Amount  are "Excess Fraud  Losses." Excess Fraud  Losses will be
allocated (i) among the Class  A, Class M and Class  B Certificates and (ii)  to
the  extent such  Excess Fraud  Losses arise  with respect  to Discount Mortgage
Loans, the Class AP Certificates. If the aggregate of all Fraud Losses  incurred
in  the  month  preceding  the  month  of  the  related  Distribution  Date (the
"Aggregate Current Fraud Losses") is less  than or equal to the  then-applicable
Fraud  Loss Amount, no Fraud Losses will  be regarded as Excess Fraud Losses. If
Aggregate Current Fraud Losses exceed  the then-applicable Fraud Loss Amount,  a
portion  of  each Fraud  Loss  will be  regarded as  an  "Excess Fraud  Loss" in
proportion to the ratio of (a) the excess of (i) Aggregate Current Fraud  Losses
over  (ii) the then-applicable  Fraud Loss Amount, to  (b) the Aggregate Current
Fraud Losses. Thereafter, when the Fraud  Loss Amount is zero, all Fraud  Losses
will  be regarded as  Excess Fraud Losses.  Upon initial issuance  of the Series
199 - Certificates, the "Fraud Loss  Amount" with respect thereto will be  equal
to  approximately     % (approximately $        ) of  the Cut-Off Date Aggregate
Principal Balance of the  Mortgage Loans. As of  any Distribution Date prior  to
the  first anniversary of the Cut-Off Date, the Fraud Loss Amount will equal the
initial Fraud Loss Amount minus the  aggregate amount of Fraud Losses  allocated
solely  to the Class B or Class M Certificates through the related Determination
Date. As of any  Distribution Date from the  first through fifth anniversary  of
the  Cut-Off Date,  the Fraud  Loss Amount will  be 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  principal balance of  all of the
Mortgage Loans as of the most recent  anniversary of the Cut-Off Date minus  (2)
the  aggregate amounts allocated solely  to the Class B  or Class M Certificates
with respect to Fraud  Losses since the most  recent anniversary of the  Cut-Off
Date through the related Determination Date. On and after the Cross-Over Date or
after  the fifth anniversary of the Cut-Off  Date, the Fraud Loss Amount will be
zero.
 
    Bankruptcy Losses, other  than Excess Bankruptcy  Losses, will be  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. Bankruptcy losses
in excess of the Bankruptcy Loss  Amount are "Excess Bankruptcy Losses."  Excess
Bankruptcy  Losses will be allocated (i) among the  Class A, Class M and Class B
Certificates and (ii)  to the extent  such Excess Bankruptcy  Losses arise  with
respect  to Discount Mortgage Loans, the Class AP Certificates. If the aggregate
of all  Bankruptcy Losses  incurred in  the  month preceding  the month  of  the
related  Distribution Date (the  "Aggregate Current Bankruptcy  Losses") is less
than or  equal to  the then  applicable Bankruptcy  Loss Amount,  no  Bankruptcy
Losses  will  be  regarded as  Excess  Bankruptcy Losses.  If  Aggregate Current
Bankruptcy Losses exceed the then-applicable  Bankruptcy Loss Amount, a  portion
of each Bankruptcy Loss will be regarded as an
 
                                      S-54
<PAGE>
"Excess  Bankruptcy Loss" in  proportion to the  ratio of (a)  the excess of (i)
Aggregate Current  Bankruptcy Losses  over (ii)  the then-applicable  Bankruptcy
Loss  Amount, to (b)  the Aggregate Current  Bankruptcy Losses. Thereafter, when
the Bankruptcy Loss Amount  is zero, all Bankruptcy  Losses will be regarded  as
Excess   Bankruptcy  Losses.  Upon   initial  issuance  of   the  Series  199  -
Certificates, the "Bankruptcy Loss Amount" with respect thereto will be equal to
approximately     %  (approximately $         )  of the  Cut-Off Date  Aggregate
Principal  Balance of the Mortgage  Loans. As of any  Distribution Date prior to
the first anniversary of the Cut-Off Date, the Bankruptcy Loss Amount will equal
the initial  Bankruptcy Loss  Amount minus  the aggregate  amount of  Bankruptcy
Losses  allocated solely  to the  Class B and  Class M  Certificates through the
related Determination Date. As  of any Distribution Date  on or after the  first
anniversary  of  the Cut-Off  Date, the  Bankruptcy Loss  Amount will  equal the
excess, if any, of (1)  the lesser of (a) the  Bankruptcy Loss Amount as of  the
business  day next preceding the most recent anniversary of the Cut-Off Date and
(b) an amount,  if any,  calculated pursuant  to the  terms of  the Pooling  and
Servicing  Agreement, which amount as calculated will provide for a reduction in
the Bankruptcy Loss Amount, over (2)  the aggregate amount of Bankruptcy  Losses
allocated  solely to the Class B Certificates or Class M Certificates since such
anniversary.  The  Bankruptcy  Loss  Amount  and  the  related  coverage  levels
described  above  may  be reduced  or  modified upon  written  confirmation from
[Moody's] [Fitch] [DCR] and [S&P] that  such reduction or modification will  not
adversely  affect the then-current ratings assigned to the Class A, Class AP and
Class M Certificates by [Moody's] [Fitch]  [DCR] and [S&P]. Such a reduction  or
modification  may adversely affect  the coverage provided  by subordination with
respect to Bankruptcy Losses. On and  after the Cross-Over Date, the  Bankruptcy
Loss Amount will be zero.
 
    Notwithstanding the foregoing, the provisions relating to subordination will
not be applicable in connection with a Bankruptcy Loss so long as the applicable
Servicer  has notified the Trustee and the  Master Servicer 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
when (A) the related Mortgage Loan is not in default with regard to the payments
due thereunder or (B)  delinquent payments of principal  and interest under  the
related  Mortgage  Loan  and  any premiums  on  any  applicable  Standard Hazard
Insurance Policy and  any related escrow  payments in respect  of such  Mortgage
Loan  are being  advanced on a  current basis  by such Servicer,  in either case
without giving effect to any Debt Service Reduction.
 
    Since the  initial principal  balance of  the Class  B Certificates  in  the
aggregate  will be approximately $         ,  the risk of Special Hazard Losses,
Fraud Losses  and Bankruptcy  Losses will  be separately  borne by  the Class  B
Certificates  to  a lesser  extent (I.E.,  only  up to  the Special  Hazard Loss
Amount, Fraud Loss  Amount and  Bankruptcy Loss Amount,  respectively) than  the
risk  of other Realized Losses, which they will bear to the full extent of their
initial  principal  balance.  See  "The  Trust  Estates  --  Mortgage  Loans  --
Representations  and  Warranties" and  "--  Insurance Policies,"  "Certain Legal
Aspects of the Mortgage Loans -- Environmental Considerations" and "Servicing of
the Mortgage  Loans  -- Enforcement  of  Due-on-Sale Clauses;  Realization  Upon
Defaulted Mortgage Loans" in the Prospectus.
 
                                      S-55
<PAGE>
                      DESCRIPTION OF THE MORTGAGE LOANS(1)
 
GENERAL
 
    The Mortgage Loans to be included in the Trust Estate will be fixed interest
rate,   conventional,  monthly  pay,  fully  amortizing,  one-  to  four-family,
residential first mortgage  loans having  original terms to  stated maturity  of
approximately        years, which  may include  loans secured  by shares ("Co-op
Shares") issued by private non-profit housing corporations ("Cooperatives"), and
the related proprietary leases or occupancy agreements granting exclusive rights
to occupy specified units  in such Cooperatives'  buildings. The Mortgage  Loans
are  expected to include           promissory notes, to have an aggregate unpaid
principal balance as of the Cut-Off Date (the "Cut-Off Date Aggregate  Principal
Balance")  of  approximately $              to  be secured  by first  liens (the
"Mortgages") on  one-  to  four-family residential  properties  (the  "Mortgaged
Properties")  and to have the additional  characteristics described below and in
the Prospectus.
 
    As of the Cut-Off Date, it  is expected that       of the Mortgage Loans  in
the  Trust Estate, representing approximately    % of the Cut-Off Date Aggregate
Principal Balance of the Mortgage Loans will be secured by Co-op Shares and that
     of the Mortgage Loans, representing approximately    % of the Cut-Off  Date
Aggregate  Principal Balance of the Mortgage  Loans, will be Buy-Down Loans. See
"The Trust Estates -- Mortgage Loans" in the Prospectus.
 
    Each of the Mortgage Loans is subject to a due-on-sale clause. See  "Certain
Legal  Aspects of the Mortgage Loans -- "Due-on-Sale' Clauses" and "Servicing of
the Mortgage  Loans  -- Enforcement  of  Due-on-Sale Clauses;  Realization  Upon
Defaulted Mortgage Loans" in the Prospectus.
 
    As  of the Cut-Off  Date, each Mortgage  Loan is expected  to have an unpaid
principal balance  of not  less than  approximately $              or more  than
approximately  $            ,  and the  average unpaid principal  balance of the
Mortgage Loans is expected to  be approximately $           . The latest  stated
maturity date of any of the Mortgage Loans is expected to be             ,     ;
however,  the actual  date on  which any Mortgage  Loan is  paid in  full may be
earlier than the stated maturity date due to unscheduled payments of  principal.
Based  on information supplied  by the mortgagors in  connection with their loan
applications at origination,         of the Mortgaged  Properties, which  secure
approximately       % of  the Cut-Off  Date Aggregate  Principal Balance  of the
Mortgage Loans, are expected to be owner occupied primary residences and      of
the Mortgaged
 
- ------------------------
(1)  The descriptions in this Prospectus Supplement of the Trust Estate and  the
    properties  securing the Mortgage  Loans to be included  in the Trust Estate
    are based upon  the expected characteristics  of the Mortgage  Loans at  the
    close  of  business  on the  Cut-Off  Date,  as adjusted  for  the scheduled
    principal  payments  due  on  or  before  such  date.  Notwithstanding   the
    foregoing,  any of such Mortgage Loans may be excluded from the Trust Estate
    (i) as a result  of principal prepayment  thereof in full or  (ii) if, as  a
    result  of  delinquencies  or  otherwise, the  Seller  otherwise  deems such
    exclusion necessary or desirable. In either event, other Mortgage Loans  may
    be  included in the  Trust Estate. The Seller  believes that the information
    set forth  herein  with  respect  to the  expected  characteristics  of  the
    Mortgage  Loans on the Cut-Off Date is representative of the characteristics
    as of the Cut-Off  Date of the  Mortgage Loans to be  included in the  Trust
    Estate  as it will be constituted at  the time the Series 199 - Certificates
    are issued, although the Cut-Off Date Aggregate Principal Balance, the range
    of Mortgage Interest Rates and maturities, and certain other characteristics
    of the Mortgage Loans in the Trust Estate may vary. In the event that any of
    the characteristics  as of  the  Cut-Off Date  of  the Mortgage  Loans  that
    constitute  the Trust Estate on  the date of initial  issuance of the Series
    199 -  Certificates vary  materially from  those described  herein,  revised
    information   regarding  the  Mortgage  Loans  will  be  made  available  to
    purchasers of the Offered Certificates, on or before such issuance date, and
    a Current Report on Form 8-K containing such information will be filed  with
    the Securities and Exchange Commission within 15 days following such date.
 
                                      S-56
<PAGE>
Properties,  which  secure approximately       % of  the Cut-Off  Date Aggregate
Principal Balance of the Mortgage Loans,  are expected to be non-owner  occupied
or  second homes. See "The Mortgage Loan Programs -- Mortgage Loan Underwriting"
in the Prospectus.
 
    It is expected  that one  of the Mortgage  Loans representing  approximately
   %  of the Cut-Off Date Aggregate Principal Balance of the Mortgage Loans will
be  subject  to  a  subsidy  agreement,  which,  except  under  certain  limited
circumstances,  requires the employer of the mortgagor  to make a portion of the
payments on the related Mortgage Loans (a "Subsidy Loan") for specified periods.
The Subsidy Loan  was underwritten  by Norwest Mortgage.  The subsidy  agreement
relating  to the Subsidy Loan generally  will provide that monthly payments made
by the related  mortgagor will be  less than the  scheduled monthly payments  on
such  Mortgage  Loans, with  the present  value of  the resulting  difference in
payments being provided by the employer  of the mortgagor in advance,  generally
on  an annual  basis. Subsidy Loans  are offered by  employers generally through
either a graduated or fixed subsidy loan program, or a combination thereof.  The
effective  subsidized rates under  the various programs  offered generally range
from one to  five percentage  points below the  interest rate  specified in  the
related  mortgage  note.  These  subsidized  rates  are  used  to  calculate the
applicable debt-to-income ratios that are used to evaluate the  creditworthiness
of  prospective  borrowers. This  procedure  may enable  certain  mortgagors who
otherwise would not  meet Norwest Mortgage's  underwriting guidelines to  obtain
mortgage  loans. As of the Cut-Off Date, it is expected that the Subsidy Loan in
the Trust Estate will be offered by an employer through a graduated subsidy loan
program  with  a  term  of  five  years  or  less.  See  "Prepayment  and  Yield
Considerations" herein.
 
    Subsidy amounts paid by the employer will be deposited by the Servicer in an
account  (the "Subsidy Account")  maintained by the Servicer,  which will not be
part of the Trust Estate or the REMIC. Funds in the Subsidy Account with respect
to each Subsidy  Loan will be  withdrawn by  the Servicer and  deposited in  the
Servicer  Custodial Account  on the  business day  following the  receipt by the
Servicer of the mortgagor's monthly payment to which such funds relate. Funds in
the Subsidy Account with respect to a Subsidy Loan will not be withdrawn by  the
Servicer,  and  are  not  permitted  to be  applied  under  the  related subsidy
agreement, during any period in which  such Subsidy Loan is in default.  Despite
the  existence of the subsidy agreement, the mortgagor remains liable for making
all scheduled payments on  a Subsidy Loan.  From time to time,  the amount of  a
subsidy  payment or the term  of a subsidy agreement may,  upon the request of a
corporate employer, be modified.
 
    As of the Cut-Off  Date, there were     Mortgage  Loans having an  aggregate
unpaid  principal balance  of approximately  $             ,  a range  of unpaid
principal balances of approximately $          to approximately $          ,  an
average  unpaid principal  balance of  approximately $             ,  a range of
interest rates from    % to    % per annum, a weighted average interest rate  of
approximately     % per annum, a  range of remaining terms to stated maturity of
   months to    months, a weighted average remaining term to stated maturity  of
approximately     months,  a range of original  Loan-to-Value Ratios of     % to
   %, a weighted average original Loan-to-Value Ratio of approximately    %  and
the following geographic concentration of Mortgaged Properties securing Mortgage
Loans  in  excess of  5.00% of  the  aggregate unpaid  principal balance  of the
Discount Mortgage Loans: approximately          % in [STATES].
 
    As of the  Cut-Off Date, there  were             Mortgage  Loans other  than
Discount  Mortgage  Loans  having  an  aggregate  unpaid  principal  balance  of
approximately $         , a range of unpaid principal balances of  approximately
$           to approximately $          , an average unpaid principal balance of
approximately $         , a range of interest rates from    % to    % per annum,
a weighted average interest  rate of approximately     % per  annum, a range  of
remaining terms to stated maturity of    months to    months, a weighted average
remaining  term  to stated  maturity  of approximately       months, a  range of
original Loan-to-Value Ratios  of     %  to     %, a  weighted average  original
Loan-to-Value  Ratio  of  approximately        %  and  the  following geographic
concentration of Mortgaged Properties securing Mortgage Loans in excess of 5.00%
of the  aggregate unpaid  principal balance  of the  Mortgage Loans  other  than
Discount Mortgage Loans: approximately    % in [STATES].
 
                                      S-57
<PAGE>
    The  Mortgage Loans have been acquired  by the Seller from Norwest Mortgage.
The Mortgage Loans  that Norwest  Mortgage sells to  the Seller  will have  been
either  originated  by Norwest  Mortgage or  acquired  by Norwest  Mortgage from
various entities (each, a "Correspondent") which either originated the  Mortgage
Loans or acquired the Mortgage Loans pursuant to mortgage loan purchase programs
operated  by such Correspondents. Approximately     % (by Cut-Off Date Aggregate
Principal Balance) of  the Mortgage  Loans (the  "Norwest Mortgage  Underwritten
Loans")   were  generally  originated  in  conformity  with  Norwest  Mortgage's
underwriting standards  applied  either  by  Norwest  Mortgage  or  by  eligible
originators  to whom Norwest Mortgage  had delegated all underwriting functions.
In certain instances,  exceptions to Norwest  Mortgage's underwriting  standards
may have been granted by Norwest Mortgage to such originators. See "The Mortgage
Loan  Programs -- Mortgage  Loan Underwriting" in  the Prospectus. Approximately
   % and     %  (by Cut-Off Date  Aggregate Principal Balance)  of the  Mortgage
Loans  (the "Pool Certification Underwritten Loans")  will have been reviewed by
GEMICO and UGRIC, respectively, to ensure compliance with such company's credit,
appraisal and underwriting standards. Neither the Series 199 - Certificates  nor
the  Mortgage Loans  are insured or  guaranteed under a  mortgage pool insurance
policy issued by GEMICO or UGRIC. The Pool Certification Underwritten Loans were
evaluated  by  Norwest  Mortgage  using  credit  scoring  as  described  in  the
Prospectus under "The Mortgage Loan Programs -- Mortgage Loan Underwriting" and,
based  on the credit scores of such  Mortgage Loans, some of such Mortgage Loans
were re-underwritten by  Norwest Mortgage. The  remaining approximate     %  (by
Cut-Off  Date  Aggregate Principal  Balance) of  the  Mortgage Loans  (the "Bulk
Purchase  Underwritten  Loans")  will  have  been  underwritten  under   varying
standards which have been reviewed and accepted by Norwest Mortgage. Neither the
Seller   nor  Norwest  Mortgage  has  underwritten  any  of  the  Bulk  Purchase
Underwritten Loans.  See "--  Mortgage Underwriting  Standards" below  and  "The
Mortgage Loan Programs -- Mortgage Loan Underwriting" in the Prospectus.
 
MORTGAGE LOAN DATA
 
    Set   forth  below   is  a   description  of   certain  additional  expected
characteristics of  the  Mortgage  Loans  as of  the  Cut-Off  Date  (except  as
otherwise indicated).
 
                            MORTGAGE INTEREST RATES
 
<TABLE>
<CAPTION>
                                                                                                 PERCENTAGE OF
                                                                                                  CUT-OFF DATE
                                                                 NUMBER      AGGREGATE UNPAID      AGGREGATE
                                                              OF MORTGAGE       PRINCIPAL          PRINCIPAL
MORTGAGE INTEREST RATE                                           LOANS           BALANCE            BALANCE
- -----------------------------------------------------------  --------------  ----------------  ------------------
 
<S>                                                          <C>             <C>               <C>
</TABLE>
 
    As  of the Cut-Off Date, the weighted  average Mortgage Interest Rate of the
Mortgage Loans is  expected to be  approximately          %  per annum. The  Net
Mortgage  Interest Rate  of each  Mortgage Loan  will be  equal to  the Mortgage
Interest Rate  of  such  Mortgage Loan  minus  the  sum of  (a)  the  applicable
Servicing  Fee  Rate, (b)  the Master  Servicing Fee  Rate as  set forth  in the
Pooling and Servicing Agreement  and (c) the Fixed  Retained Yield, if any,  for
such  Mortgage Loan. As of  the Cut-Off Date, the  weighted average Net Mortgage
Interest Rate of the Mortgage Loans is expected to be approximately        % per
annum.
 
                                      S-58
<PAGE>
                       REMAINING TERMS TO STATED MATURITY
 
<TABLE>
<CAPTION>
                                                                                                 PERCENTAGE OF
                                                                                                  CUT-OFF DATE
                                                                 NUMBER      AGGREGATE UNPAID      AGGREGATE
                                                              OF MORTGAGE       PRINCIPAL          PRINCIPAL
              REMAINING STATED TERM (MONTHS)                     LOANS           BALANCE            BALANCE
- -----------------------------------------------------------  --------------  ----------------  ------------------
 
<S>                                                          <C>             <C>               <C>
</TABLE>
 
    As of  the Cut-Off  Date,  the weighted  average  remaining term  to  stated
maturity of the Mortgage Loans is expected to be approximately    months.
 
                              YEARS OF ORIGINATION
 
<TABLE>
<CAPTION>
                                                                                                 PERCENTAGE OF
                                                                                                  CUT-OFF DATE
                                                                 NUMBER      AGGREGATE UNPAID      AGGREGATE
                                                              OF MORTGAGE       PRINCIPAL          PRINCIPAL
YEAR OF ORIGINATION                                              LOANS           BALANCE            BALANCE
- -----------------------------------------------------------  --------------  ----------------  ------------------
 
<S>                                                          <C>             <C>               <C>
</TABLE>
 
    It  is  expected that  the earliest  month  and year  of origination  of any
Mortgage Loan was           and  the latest  month and year  of origination  was
         .
 
                         ORIGINAL LOAN-TO-VALUE RATIOS
 
<TABLE>
<CAPTION>
                                                                                                 PERCENTAGE OF
                                                                                                  CUT-OFF DATE
                                                                 NUMBER      AGGREGATE UNPAID      AGGREGATE
                                                              OF MORTGAGE       PRINCIPAL          PRINCIPAL
ORIGINAL LOAN-TO-VALUE RATIO                                     LOANS           BALANCE            BALANCE
- -----------------------------------------------------------  --------------  ----------------  ------------------
 
<S>                                                          <C>             <C>               <C>
</TABLE>
 
    As  of the  Cut-Off Date,  the minimum  and maximum  Loan-to-Value Ratios at
origination of  the  Mortgage  Loans are  expected  to  be       % and        %,
respectively, and the weighted average Loan-to-Value Ratio at origination of the
Mortgage  Loans is expected to be approximately    %. The Loan-to-Value Ratio of
a Mortgage Loan is calculated using the lesser of (i) the appraised value of the
related Mortgaged  Property, as  established  by an  appraisal obtained  by  the
originator  from an appraiser at the time of origination and (ii) the sale price
for such property. See "The Trust Estates -- Mortgage Loans" in the  Prospectus.
No  assurance can be given that the  values of the Mortgaged Properties securing
the Mortgage  Loans  have  remained  or  will  remain  at  the  levels  used  in
calculating  the Loan-to-Value Ratios shown above. See "Risk Factors -- Risks of
the Mortgage Loans" in the Prospectus. It is expected that of the Mortgage Loans
having Loan-to-Value  Ratios  at  origination in  excess  of  80%,  representing
approximately    % (by Cut-Off Date Aggregate Principal Balance) of the Mortgage
Loans, were originated without primary mortgage insurance.
 
                                      S-59
<PAGE>
                       MORTGAGE LOAN DOCUMENTATION LEVELS
 
<TABLE>
<CAPTION>
                                                                                                 PERCENTAGE OF
                                                                                                  CUT-OFF DATE
                                                                 NUMBER      AGGREGATE UNPAID      AGGREGATE
                                                              OF MORTGAGE       PRINCIPAL          PRINCIPAL
DOCUMENTATION LEVEL                                              LOANS           BALANCE            BALANCE
- -----------------------------------------------------------  --------------  ----------------  ------------------
 
<S>                                                          <C>             <C>               <C>
</TABLE>
 
    Documentation  levels vary  depending upon  several factors,  including loan
amount, Loan-to-Value  Ratio and  the type  and purpose  of the  Mortgage  Loan.
Asset,  income  and  mortgage  verifications were  obtained  for  Mortgage Loans
processed with "full documentation."
 
                   ORIGINAL MORTGAGE LOAN PRINCIPAL BALANCES
 
<TABLE>
<CAPTION>
                                                                                                 PERCENTAGE OF
                                                                                                  CUT-OFF DATE
                                                                 NUMBER      AGGREGATE UNPAID      AGGREGATE
                                                              OF MORTGAGE       PRINCIPAL          PRINCIPAL
ORIGINAL MORTGAGE LOAN PRINCIPAL BALANCE                         LOANS           BALANCE            BALANCE
- -----------------------------------------------------------  --------------  ----------------  ------------------
 
<S>                                                          <C>             <C>               <C>
</TABLE>
 
    As of the Cut-Off Date, the average unpaid principal balance of the Mortgage
Loans is expected to be approximately $           . As of the Cut-Off Date,  the
weighted   average   Loan-to-Value  Ratio   at   origination  and   the  maximum
Loan-to-Value Ratio  at origination  of the  Mortgage Loans  which had  original
principal  balances in excess of $600,000 are expected  to be approximately    %
and      %, respectively.  See  "The Trust  Estates --  Mortgage Loans"  in  the
Prospectus.
 
                              MORTGAGED PROPERTIES
 
<TABLE>
<CAPTION>
                                                                                                 PERCENTAGE OF
                                                                                                  CUT-OFF DATE
                                                                 NUMBER      AGGREGATE UNPAID      AGGREGATE
                                                              OF MORTGAGE       PRINCIPAL          PRINCIPAL
PROPERTY                                                         LOANS           BALANCE            BALANCE
- -----------------------------------------------------------  --------------  ----------------  ------------------
 
<S>                                                          <C>             <C>               <C>
</TABLE>
 
                GEOGRAPHIC DISTRIBUTION OF MORTGAGED PROPERTIES
 
<TABLE>
<CAPTION>
                                                                                                    PERCENTAGE OF
                                                                  NUMBER       AGGREGATE UNPAID      CUT-OFF DATE
                                                                OF MORTGAGE       PRINCIPAL      AGGREGATE PRINCIPAL
GEOGRAPHIC AREA                                                    LOANS           BALANCE             BALANCE
- ------------------------------------------------------------  ---------------  ----------------  --------------------
 
<S>                                                           <C>              <C>               <C>
</TABLE>
 
                                      S-60
<PAGE>
    No  more than  approximately     %  of the Cut-Off  Date Aggregate Principal
Balance of the Mortgage Loans is expected to be secured by Mortgaged  Properties
located in any one five-digit zip code.
 
                         ORIGINATORS OF MORTGAGE LOANS
 
<TABLE>
<CAPTION>
                                                                                                    PERCENTAGE OF
                                                                  NUMBER       AGGREGATE UNPAID      CUT-OFF DATE
                                                                OF MORTGAGE       PRINCIPAL      AGGREGATE PRINCIPAL
ORIGINATOR                                                         LOANS           BALANCE             BALANCE
- ------------------------------------------------------------  ---------------  ----------------  --------------------
 
<S>                                                           <C>              <C>               <C>
</TABLE>
 
    It  is expected that, as of the Mortgage Loan Cut-off Date,               of
the "Other  Originators" will  have accounted  for approximately      %  of  the
Mortgage  Loan Cut-off Date Aggregate Principal  Balance. No other single "Other
Originator" is expected to  have accounted for more  than 5.00% of the  Mortgage
Loan Cut-off Date Aggregate Principal Balance.
 
                           PURPOSES OF MORTGAGE LOANS
 
<TABLE>
<CAPTION>
                                                                                                    PERCENTAGE OF
                                                                  NUMBER       AGGREGATE UNPAID      CUT-OFF DATE
                                                                OF MORTGAGE       PRINCIPAL      AGGREGATE PRINCIPAL
LOAN PURPOSE                                                       LOANS           BALANCE             BALANCE
- ------------------------------------------------------------  ---------------  ----------------  --------------------
 
<S>                                                           <C>              <C>               <C>
</TABLE>
 
    In  general, in the case  of a Mortgage Loan  made for "rate/term" refinance
purposes, substantially  all  of  the proceeds  are  used  to pay  in  full  the
principal balance of a previous mortgage loan of the mortgagor with respect to a
Mortgaged Property and to pay origination and closing costs associated with such
refinancing.  However, in the case of a Mortgage Loan made for "equity take out"
refinance purposes, all or a portion  of the proceeds are generally retained  by
the  mortgagor for uses unrelated to the  Mortgaged Property. The amount of such
proceeds  retained  by  the  mortgagor  may  be  substantial.  See  "The   Trust
Estates--Mortgage   Loans"  and  "The   Mortgage  Loan  Programs--Mortgage  Loan
Underwriting" in the Prospectus.
 
                             SUBSIDY LOAN PROGRAMS
 
<TABLE>
<CAPTION>
                                                                                                    PERCENTAGE OF
                                                                  NUMBER       AGGREGATE UNPAID      CUT-OFF DATE
                                                                OF MORTGAGE       PRINCIPAL      AGGREGATE PRINCIPAL
PROGRAM AND TERM                                                   LOANS           BALANCE             BALANCE
- ------------------------------------------------------------  ---------------  ----------------  --------------------
 
<S>                                                           <C>              <C>               <C>
</TABLE>
 
                                      S-61
<PAGE>
MANDATORY REPURCHASE OR SUBSTITUTION OF MORTGAGE LOANS
 
    The Seller is required, with respect to Mortgage Loans that are found by the
Trustee to have defective documentation, or  in respect of which the Seller  has
breached  a representation or warranty, either to repurchase such Mortgage Loans
or, if within  two years of  the date of  initial issuance of  the Series 199  -
Certificates,  to substitute new  Mortgage Loans therefor.  Any Mortgage Loan so
substituted must, among other things, have an unpaid principal balance equal  to
or  less than the Scheduled Principal Balance  of the Mortgage Loan for which it
is being substituted (after giving effect to the scheduled principal payment due
in the month of substitution on the Mortgage Loan for which a new Mortgage  Loan
is  being  substituted), 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  being
substituted.  See "Prepayment and Yield  Considerations" herein and "The Pooling
and Servicing Agreement -- Assignment of  Mortgage Loans to the Trustee" in  the
Prospectus.
 
OPTIONAL REPURCHASE OF DEFAULTED MORTGAGE LOANS
 
    The  [Master Servicer][Seller] may,  in its sole  discretion, repurchase any
defaulted Mortgage Loan, or any Mortgage Loan as to which default is  reasonably
foreseeable,  from the  Trust Estate  at a price  equal to  the unpaid principal
balance of such Mortgage Loan, together with accrued interest at a rate equal to
the Mortgage Interest  Rate through  the last  day of  the month  in which  such
repurchase  occurs.  See  "The  Pooling  and  Servicing  Agreement  --  Optional
Purchases" in the Prospectus. A Servicer may, in its sole discretion, allow  the
assumption  of a defaulted Mortgage Loan serviced by such Servicer by a borrower
meeting Norwest Mortgage's underwriting guidelines or encourage the  refinancing
of  a defaulted Mortgage Loan. See  "Prepayment and Yield Considerations" herein
and "Servicing  of the  Mortgage Loans  -- Enforcement  of Due-on-Sale  Clauses;
Realization Upon Defaulted Mortgage Loans" in the Prospectus.
 
MORTGAGE UNDERWRITING STANDARDS
 
    Approximately       % (by  Cut-Off Date Aggregate  Principal Balance) of the
Mortgage Loans  (the  "Norwest  Mortgage  Underwritten  Loans")  were  generally
originated  in conformity with Norwest Mortgage's underwriting standards. In the
case of certain Mortgage Loans underwritten pursuant to a Delegated Underwriting
(as defined in the Prospectus under "The Mortgage Loan Programs -- Mortgage Loan
Underwriting")  arrangement,  exceptions  to  Norwest  Mortgage's   underwriting
standards  may have  been approved by  Norwest Mortgage. See  "The Mortgage Loan
Programs -- Mortgage Loan Underwriting" in the Prospectus.
 
    Approximately     % and     % (by Cut-Off Date Aggregate Principal  Balance)
of the Mortgage Loans will have been reviewed by GEMICO and UGRIC, respectively,
to  ensure  compliance  with  such company's  respective  credit,  appraisal and
underwriting standards  generally to  assess the  eligibility of  such  Mortgage
Loans  for inclusion in a mortgage pool to  be insured by such company. See "The
Mortgage Loan Programs -- Mortgage Loan Underwriting" in the Prospectus.
 
    Neither the Series 199 - Certificates nor the Mortgage Loans are insured  or
guaranteed under a mortgage pool insurance policy issued by GEMICO or UGRIC.
 
    The Pool Certification Underwritten Loans were evaluated by Norwest Mortgage
using  credit scoring  as described in  the Prospectus under  "The Mortgage Loan
Programs -- Mortgage Loan Underwriting" and, based on the Credit Scores of  such
Mortgage  Loans, some  of such  Mortgage Loans  were re-underwritten  by Norwest
Mortgage.
 
    [The remaining  approximate        % (by  Cut-Off Date  Aggregate  Principal
Balance)  of the  Mortgage Loans (the  "Bulk Purchase  Underwritten Loans") will
have been underwritten  under varying  standards. Norwest Mortgage  has in  each
case  reviewed the underwriting  standards applied and  determined that the Bulk
Purchase Underwritten Loans would have  qualified for origination under  Norwest
Mortgage's  underwriting standards together  with customary exceptions therefrom
reflecting the exercise of underwriting discretion. Any such exceptions did  not
constitute material departures from Norwest Mortgage's underwriting standards.]
 
                                      S-62
<PAGE>
            NORWEST MORTGAGE DELINQUENCY AND FORECLOSURE EXPERIENCE
 
    The  following  tables  set  forth  certain  information  concerning  recent
delinquency, foreclosure and loan loss  experience on the conventional  mortgage
loans  included in  Norwest Mortgage's  mortgage loan  servicing portfolio which
were originated by Norwest Mortgage for its own account or for the account of an
affiliate or acquired by Norwest Mortgage for its own account or for the account
of an affiliate  and underwritten to  Norwest Mortgage's underwriting  standards
(the  "Program  Loans"), on  the  Program Loans  which  are fixed  interest rate
mortgage loans ("Fixed Program Loans"), including, in both cases, mortgage loans
originated in connection with the purchases of residences by relocated employees
("Relocation Mortgage Loans")  and on  the Fixed  Program Loans  other than  the
Relocation   Mortgage   Loans  ("Fixed   Non-relocation  Program   Loans").  See
"Description of the Mortgage  Loans" herein and "The  Mortgage Loan Programs  --
Mortgage  Loan Underwriting" in the Prospectus. The delinquency, foreclosure and
loan loss experience represents the recent experience of Norwest Mortgage. There
can be no assurance that the  delinquency, foreclosure and loan loss  experience
set  forth  with  respect to  Norwest  Mortgage's total  servicing  portfolio of
Program Loans, which includes both  fixed and adjustable interest rate  mortgage
loans  and loans having a variety of original terms to stated maturity including
Relocation  Mortgage  Loans  and  non-relocation  mortgage  loans,  and  Norwest
Mortgage's  servicing portfolios of Fixed  Program Loans or Fixed Non-relocation
Program Loans,  each  of  which  includes loans  having  a  variety  of  payment
characteristics,  such as Subsidy Loans, Buy-Down  Loans and Balloon Loans, will
be representative of  the results that  may be experienced  with respect to  the
Mortgage  Loans  included in  the  Trust Estate.  Furthermore,  there can  be no
assurance that the  future experience  on the  Mortgage Loans  generally or  the
Mortgage  Loans serviced  by Norwest Mortgage,  all of which  are fixed interest
rate mortgage loans  having original terms  to stated maturity  of       months,
approximately      % (by Cut-Off  Date Aggregate Principal Balance) of which are
serviced by Other Servicers and approximately      % (by Cut-Off Date  Aggregate
Principal  Balance)  of  which  were  underwritten  to  various  pool  insurers'
standards will be comparable to that of the total Program Loans or Fixed Program
Loans.
 
    Historically, Relocation  Mortgage  Loans, which  constitute  a  significant
percentage  of the Mortgage  Loans currently serviced  by Norwest Mortgage, have
experienced a significantly lower rate of delinquency and foreclosure than other
mortgage loans  included in  the portfolios  of total  Program Loans  and  Fixed
Program  Loans. There  can be  no assurance  that the  future experience  on the
Mortgage Loans contained in  the Trust Estate, all  of which are fixed  interest
rate  mortgage loans having  original terms to  stated maturity of approximately
    years and none of which are Relocation Mortgage Loans, will be comparable to
that of  the  total  Program  Loans,  the  Fixed  Program  Loans  or  the  Fixed
Non-relocation Program Loans.
 
    The  following tables reflect rapid growth  during recent periods in Norwest
Mortgage's mortgage loan servicing  portfolio as a  result of the  substantially
higher  volume of new loan originations  and acquisitions of recently originated
mortgage loans.  Delinquencies,  foreclosures  and  loan  losses  generally  are
expected  to occur  more frequently  after the  first full  year of  the life of
mortgage loans. Accordingly, because a  large number of mortgage loans  serviced
by  Norwest  Mortgage  have  been  recently  originated,  the  current  level of
delinquencies, foreclosures and  loan losses  may not be  representative of  the
levels  which may be experienced  over the lives of  such mortgage loans. If the
volume of Norwest  Mortgage's new  loan originations and  acquisitions does  not
continue  to  grow  at the  rate  experienced  in recent  years,  the  levels of
delinquencies, foreclosures and loan losses as percentages of Norwest Mortgage's
total servicing portfolio could rise significantly above the rates indicated  in
the following tables.
 
                                      S-63
<PAGE>
                              TOTAL PROGRAM LOANS
<TABLE>
<CAPTION>
                                        BY DOLLAR                BY DOLLAR                BY DOLLAR
                             BY NO.       AMOUNT      BY NO.       AMOUNT      BY NO.       AMOUNT
                            OF LOANS     OF LOANS    OF LOANS     OF LOANS    OF LOANS     OF LOANS
                           -----------  ----------  -----------  ----------  -----------  ----------
                                    AS OF                    AS OF                    AS OF
                              DECEMBER 31, 1993        DECEMBER 31, 1994        DECEMBER 31 1995
                           -----------------------  -----------------------  -----------------------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                        <C>          <C>         <C>          <C>         <C>          <C>
Total Portfolio of
 Program Loans...........               $                        $                        $
 
Period of Delinquency (1)
  30 to 59 days..........               $                        $                        $
  60 to 89 days..........
  90 days or more........
Total Delinquent Loans...               $                        $                        $
 
Percent of Portfolio.....            %           %            %           %            %           %
 
<CAPTION>
 
                                    AS OF                    AS OF                    AS OF
                              DECEMBER 31, 199         DECEMBER 31, 199         DECEMBER 31, 1995
                           -----------------------  -----------------------  -----------------------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                        <C>          <C>         <C>          <C>         <C>          <C>
Foreclosures (2).........               $                        $                        $
Foreclosure Ratio (3)....            %                        %                        %
<CAPTION>
                                 YEAR ENDED               YEAR ENDED               YEAR ENDED
                              DECEMBER 31, 199         DECEMBER 31, 199         DECEMBER 31, 1995
                           -----------------------  -----------------------  -----------------------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                        <C>          <C>         <C>          <C>         <C>          <C>
Net Gain (Loss) (4)......               ($        )              ($        )              ($        )
Net Gain (Loss) Ratio
 (5).....................           (%)                      (%)                      (%)
</TABLE>
 
- ------------------------------
(1)  The  indicated periods of delinquency are based  on the number of days past
     due, based on a 30-day month. No mortgage loan is considered delinquent for
     these purposes until one month has passed since its contractual due date. A
     mortgage  loan  is  no   longer  considered  delinquent  once   foreclosure
     proceedings have commenced.
 
(2)  Includes   loans  in   the  applicable  portfolio   for  which  foreclosure
     proceedings had  been  instituted or  with  respect to  which  the  related
     property had been acquired as of the dates indicated.
 
(3)  Foreclosures  as a percentage of total loans in the applicable portfolio at
     the end of each period.
 
(4)  Does not  include gain  or loss  with respect  to loans  in the  applicable
     portfolio  for which  foreclosure proceedings  had been  instituted but not
     completed as of the  dates indicated, or for  which the related  properties
     have been acquired in foreclosure proceedings but not yet sold.
 
(5)  Net  gain (loss) as a percentage of total loans in the applicable portfolio
     at the end of each period.
 
                                      S-64
<PAGE>
                              FIXED PROGRAM LOANS
<TABLE>
<CAPTION>
                                        BY DOLLAR                BY DOLLAR                BY DOLLAR
                             BY NO.       AMOUNT      BY NO.       AMOUNT      BY NO.       AMOUNT
                            OF LOANS     OF LOANS    OF LOANS     OF LOANS    OF LOANS     OF LOANS
                           -----------  ----------  -----------  ----------  -----------  ----------
                                    AS OF                    AS OF                    AS OF
                              DECEMBER 31, 199         DECEMBER 31, 199            JUNE 30 199
                           -----------------------  -----------------------  -----------------------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                        <C>          <C>         <C>          <C>         <C>          <C>
Total Portfolio of Fixed
 Program Loans...........               $                        $                        $
 
Period of Delinquency (1)
  30 to 59 days..........               $                        $                        $
  60 to 89 days..........
  90 days or more........
Total Delinquent Loans...               $                        $                        $
 
Percent of Fixed Program
 Loan Portfolio..........            %           %            %           %            %           %
 
<CAPTION>
 
                                    AS OF                    AS OF                    AS OF
                              DECEMBER 31, 199         DECEMBER 31, 199           JUNE 30, 199
                           -----------------------  -----------------------  -----------------------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                        <C>          <C>         <C>          <C>         <C>          <C>
Foreclosures (2).........               $                        $                        $
Foreclosure Ratio (3)....            %                        %                        %
<CAPTION>
                                 YEAR ENDED               YEAR ENDED            SIX MONTHS ENDED
                              DECEMBER 31, 199         DECEMBER 31, 199           JUNE 30, 199
                           -----------------------  -----------------------  -----------------------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                        <C>          <C>         <C>          <C>         <C>          <C>
Net Gain (Loss) (4)......               $                        $                        $
Net Gain (Loss) Ratio
 (5).....................            %                        %                        %
</TABLE>
 
- ------------------------------
(1)  The indicated periods of delinquency are  based on the number of days  past
     due, based on a 30-day month. No mortgage loan is considered delinquent for
     these purposes until one month has passed since its contractual due date. A
     mortgage   loan  is  no  longer   considered  delinquent  once  foreclosure
     proceedings have commenced.
 
(2)  Includes  loans  in   the  applicable  portfolio   for  which   foreclosure
     proceedings  had  been  instituted or  with  respect to  which  the related
     property had been acquired as of the dates indicated.
 
(3)  Foreclosures as a percentage of total loans in the applicable portfolio  at
     the end of each period.
 
(4)  Does  not include  gain or  loss with  respect to  loans in  the applicable
     portfolio for which  foreclosure proceedings  had been  instituted but  not
     completed  as of the  dates indicated, or for  which the related properties
     have been acquired in foreclosure proceedings but not yet sold.
 
(5)  Net gain (loss) as a percentage of total loans in the applicable  portfolio
     at the end of each period.
 
                                      S-65
<PAGE>
                       FIXED NON-RELOCATION PROGRAM LOANS
<TABLE>
<CAPTION>
                                        BY DOLLAR                BY DOLLAR                BY DOLLAR
                             BY NO.     AMOUNT OF     BY NO.     AMOUNT OF     BY NO.     AMOUNT OF
                            OF LOANS      LOANS      OF LOANS      LOANS      OF LOANS      LOANS
                           -----------  ----------  -----------  ----------  -----------  ----------
                                    AS OF                    AS OF                    AS OF
                              DECEMBER 31, 199         DECEMBER 31, 199           JUNE 30, 199
                           -----------------------  -----------------------  -----------------------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                        <C>          <C>         <C>          <C>         <C>          <C>
Total Portfolio of Fixed
 Non-relocation Program
 Loans...................               $                        $                        $
 
Period of Delinquency (1)
  30 to 59 days..........               $                        $                        $
  60 to 89 days..........
  90 days or more........
Total Delinquent Loans...               $                        $                        $
 
Percent of Fixed Non-
 relocation Program Loan
 Portfolio...............            %            %           %            %           %            %
 
<CAPTION>
 
                                    AS OF                    AS OF                    AS OF
                              DECEMBER 31, 199         DECEMBER 31, 199           JUNE 30, 199
                           -----------------------  -----------------------  -----------------------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                        <C>          <C>         <C>          <C>         <C>          <C>
Foreclosures (2).........               $                        $                        $
Foreclosure Ratio (3)....            %                        %                        %
<CAPTION>
 
                                 YEAR ENDED               YEAR ENDED            SIX MONTHS ENDED
                              DECEMBER 31, 199         DECEMBER 31, 199           JUNE 30, 199
                           -----------------------  -----------------------  -----------------------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                        <C>          <C>         <C>          <C>         <C>          <C>
Net Gain (Loss) (4)......               $                        $                        $
Net Gain (Loss) Ratio
 (5).....................            %                        %                        %
</TABLE>
 
- ------------------------------
(1)  The  indicated periods of delinquency are based  on the number of days past
     due, based on a 30-day month. No mortgage loan is considered delinquent for
     these purposes until one month has passed since its contractual due date. A
     mortgage  loan  is  no   longer  considered  delinquent  once   foreclosure
     proceedings have commenced.
 
(2)  Includes   loans  in   the  applicable  portfolio   for  which  foreclosure
     proceedings had  been  instituted or  with  respect to  which  the  related
     property had been acquired as of the dates indicated.
 
(3)  Foreclosures  as a percentage of total loans in the applicable portfolio at
     the end of each period.
 
(4)  Does not  include gain  or loss  with respect  to loans  in the  applicable
     portfolio  for which  foreclosure proceedings  had been  instituted but not
     completed as of the  dates indicated, or for  which the related  properties
     have been acquired in foreclosure proceedings but not yet sold.
 
(5)  Net  gain (loss) as a percentage of total loans in the applicable portfolio
     at the end of each period.
 
                                      S-66
<PAGE>
    The likelihood that a mortgagor will become delinquent in the payment of his
or her mortgage loan, the rate of any subsequent foreclosures, and the  severity
of any loan loss experience, may be affected by a number of factors related to a
borrower's  personal circumstances, including, but  not limited to, unemployment
or change  in  employment  (or  in  the  case  of  self-employed  mortgagors  or
mortgagors  relying  on  commission  income,  fluctuations  in  income), marital
separation and  the mortgagor's  equity in  the related  mortgaged property.  In
addition,  delinquency, foreclosure and loan loss experience may be sensitive to
adverse economic  conditions,  either  nationally  or  regionally,  may  exhibit
seasonal  variations and may  be influenced by  the level of  interest rates and
servicing  decisions  on  the  applicable  mortgage  loans.  Regional   economic
conditions  (including  declining real  estate  values) may  particularly affect
delinquency, foreclosure  and loan  loss  experience on  mortgage loans  to  the
extent  that mortgaged properties are  concentrated in certain geographic areas.
Furthermore, the level  of foreclosures reported  is affected by  the length  of
time  legally required to complete the foreclosure process and take title to the
related property, which varies from jurisdiction to jurisdiction. The changes in
the delinquency,  foreclosure and  loan loss  experience of  Norwest  Mortgage's
servicing  portfolio during the periods set forth  in the preceding table may be
attributable to factors such as those described above, although there can be  no
assurance as to whether these changes are the result of any particular factor or
a  combination of factors. The delinquency, foreclosure and loan loss experience
on the Mortgage Loans serviced by Norwest Mortgage may be particularly  affected
to  the extent that  the related Mortgaged Properties  are concentrated in areas
which experience adverse  economic conditions or  declining real estate  values.
See "Description of the Mortgage Loans" in the Prospectus Supplement.
 
                      PREPAYMENT AND YIELD CONSIDERATIONS
 
    The  rate  of distributions  in reduction  of the  principal balance  of any
Subclass  or  Class  of  the  Offered  Certificates,  the  aggregate  amount  of
distributions on any Subclass or Class of the Offered Certificates and the yield
to  maturity of any Subclass or Class of the Offered Certificates purchased at a
discount or  premium  will  be directly  related  to  the rate  of  payments  of
principal on the Mortgage Loans in the Trust Estate and the amount and timing of
mortgagor  defaults resulting in Realized Losses. The rate of principal payments
on the Mortgage Loans will in turn be affected by the amortization schedules  of
the  Mortgage  Loans,  the  rate  of  principal  prepayments  (including partial
prepayments  and  those  resulting  from  refinancing)  thereon  by  mortgagors,
liquidations  of defaulted Mortgage Loans, repurchases by the Representing Party
of Mortgage  Loans  as  a  result of  defective  documentation  or  breaches  of
representations and warranties and optional purchases by Norwest Mortgage of all
of  the Mortgage Loans in  connection with the termination  of the Trust Estate.
See "Description of the Mortgage  Loans -- Mandatory Repurchase or  Substitution
of Mortgage Loans" and "Pooling and Servicing Agreement -- Optional Termination"
herein  and "The Pooling and Servicing Agreement -- Assignment of Mortgage Loans
to the  Trustee,"  "-- Optional  Purchases"  and "--  Termination;  Purchase  of
Mortgage  Loans"  in  the Prospectus.  Mortgagors  are permitted  to  prepay the
Mortgage Loans, in whole or in part,  at any time without penalty. As  described
under  "Description of  the Certificates  -- Principal  (Including Prepayments)"
herein, all or  a disproportionate  percentage of principal  prepayments on  the
Mortgage  Loans (including liquidations and  repurchases of Mortgage Loans) will
be distributed, to the extent of the  Classes A/M/B Fraction, to the holders  of
the  Class A Certificates then entitled to distributions in respect of principal
during the nine  years beginning  on the first  Distribution Date,  and, to  the
extent  that  such  principal prepayments  are  made  in respect  of  a Discount
Mortgage Loan, to the Class AP Certificates in proportion to the interest of the
Class AP Certificates in such Discount Mortgage Loan represented by the Class AP
Fraction. Prepayments (which, as used  herein, include all unscheduled  payments
of  principal, including payments  as the result  of liquidations, purchases and
repurchases)  of  the  Mortgage  Loans  in  the  Trust  Estate  will  result  in
distributions to Certificateholders then entitled to distributions in respect of
principal  of amounts  which would otherwise  be distributed  over the remaining
terms of such Mortgage Loans. Since the rate of prepayment on the Mortgage Loans
will depend on future events and a  variety of factors (as described more  fully
below and in the Prospectus under "Prepayment and Yield
 
                                      S-67
<PAGE>
Considerations"),  no assurance  can be  given as  to such  rate or  the rate of
principal payments on any Subclass or  Class of the Offered Certificates or  the
aggregate  amount  of distributions  on  any Subclass  or  Class of  the Offered
Certificates.
 
    The rate of payments (including prepayments)  on pools of mortgage loans  is
influenced  by a variety  of economic, geographic, social  and other factors. If
prevailing rates for  similar mortgage  loans fall below  the Mortgage  Interest
Rates  on the Mortgage Loans, the rate of prepayment would generally be expected
to increase. Conversely, if interest rates on similar mortgage loans rise  above
the  Mortgage Interest Rates on the Mortgage Loans, the rate of prepayment would
generally be expected to decrease. The rate of prepayment on the Mortgage  Loans
may  also  be  influenced  by  programs  offered  by  mortgage  loan originators
(including  Norwest  Mortgage),  servicers  (including  Norwest  Mortgage)   and
mortgage  loan  brokers  to  encourage  refinancing  through  such  originators,
servicers and  brokers,  including, but  not  limited to,  general  or  targeted
solicitations  (which may be based on characteristics including, but not limited
to, the  mortgage loan  interest  rate or  payment  history and  the  geographic
location  of the Mortgaged Property), reduced origination fees or closing costs,
pre-approved applications, waiver of  pre-closing interest accrued with  respect
to  a refinanced  loan prior  to the  pay-off of  such loan,  or other financial
incentives. See "Prepayment and Yield Considerations -- Weighted Average Life of
Certificates" in the Prospectus. In addition, Norwest Mortgage or third  parties
may  enter into agreements with borrowers providing for the bi-weekly payment of
principal and  interest  on  the related  mortgage  loan,  thereby  accelerating
payment of the mortgage loan resulting in partial prepayments.
 
    The  effect of subsidy agreements on the rate of prepayment of Subsidy Loans
is uncertain. The rate of  prepayment on Subsidy Loans  may be affected by  such
factors  as the relationship between prevailing mortgage rates and the effective
interest rates  on  such  Subsidy  Loans, the  remaining  term  of  the  subsidy
agreements, and requests by the related employers for refinance or modification.
The  subsidy agreement  relating to  a Subsidy  Loan generally  provides that if
prevailing market rates of  interest on mortgage loans  similar to such  Subsidy
Loan  decline relative to the Mortgage Interest Rate of such Subsidy Loan by the
percentage set forth in the subsidy agreement, the employer may request that the
mortgagor refinance such  Subsidy Loan.  In the event  the mortgagor  refinances
such  Subsidy Loan, the Subsidy Loan will be  prepaid, and the new loan will not
be included  in the  Trust Estate.  If  the mortgagor  fails to  refinance  such
Subsidy  Loan,  the employer  may terminate  the  related subsidy  agreement. In
addition, the termination of  the subsidy agreement relating  to a Subsidy  Loan
for  any  reason  (whether  due  to  the  mortgagor's  failure  to  refinance or
otherwise) may increase the financial burden of the mortgagor, who may not  have
otherwise  qualified  for  a  mortgage under  Norwest  Mortgage's  mortgage loan
underwriting guidelines, and may consequently increase the risk of default  with
respect  to the related Mortgage Loan. See "The Trust Estates -- Mortgage Loans"
and  "The  Mortgage  Loan  Programs  --  Mortgage  Loan  Underwriting"  in   the
Prospectus.  From time to time, the amount of the subsidy payment or the term of
the subsidy  agreement may,  upon  the request  of  the corporate  employer,  be
modified.
 
    Other  factors  affecting prepayment  of mortgage  loans include  changes in
mortgagors' housing  needs,  job transfers,  unemployment  or, in  the  case  of
self-employed mortgagors or mortgagors relying on commission income, substantial
fluctuations  in income, significant declines in  real estate values and adverse
economic  conditions  either  generally  or  in  particular  geographic   areas,
mortgagors'  equity in the Mortgaged Properties,  including the use of second or
"home equity"  mortgage loans  by mortgagors  or the  use of  the properties  as
second  or  vacation homes,  and servicing  decisions. In  addition, all  of the
Mortgage Loans contain  due-on-sale clauses  which will  generally be  exercised
upon the sale of the related Mortgaged Properties. Consequently, acceleration of
mortgage  payments  as  a result  of  any such  sale  will affect  the  level of
prepayments on the Mortgage Loans. The extent to which defaulted Mortgage  Loans
are  assumed by transferees of the related Mortgaged Properties will also affect
the rate of principal payments. The rate of prepayment and, therefore, the yield
to maturity of the Offered Certificates will be affected by the extent to  which
(i) the Seller elects to repurchase,
 
                                      S-68
<PAGE>
rather  than substitute for,  Mortgage Loans which  are found by  the Trustee to
have defective documentation or with respect to which the Seller has breached  a
representation  or  warranty  or  (ii)  the  Servicer  elects  to  encourage the
refinancing of any defaulted Mortgage Loan  rather than to permit an  assumption
thereof  by  a mortgagor  meeting  the Servicer's  underwriting  guidelines. See
"Servicing  of  the  Mortgage  Loans  --  Enforcement  of  Due-on-Sale  Clauses;
Realization  Upon Defaulted Mortgage  Loans" in the Prospectus.  There can be no
certainty as to the rate of prepayments on the Mortgage Loans during any  period
or  over the life  of the Series  199 - Certificates.  See "Prepayment and Yield
Considerations" in the Prospectus.
 
    THE YIELD  TO MATURITY  OF THE  OFFERED CERTIFICATES  WILL BE  SENSITIVE  IN
VARYING  DEGREES  TO  THE  RATE  AND  TIMING  OF  PRINCIPAL  PAYMENTS (INCLUDING
PREPAYMENTS, WHICH MAY  BE MADE  AT ANY TIME  WITHOUT PENALTY)  ON THE  MORTGAGE
LOANS.  INVESTORS  IN THE  OFFERED CERTIFICATES  SHOULD CONSIDER  THE ASSOCIATED
RISKS, INCLUDING, IN THE CASE OF  OFFERED CERTIFICATES PURCHASED AT A  DISCOUNT,
PARTICULARLY  THE CLASS AP CERTIFICATES, THE RISK THAT A SLOWER THAN ANTICIPATED
RATE OF PAYMENTS IN RESPECT OF PRINCIPAL (INCLUDING PREPAYMENTS) ON THE MORTGAGE
LOANS COULD RESULT IN AN ACTUAL YIELD  THAT IS LOWER THAN ANTICIPATED. A  FASTER
THAN   ANTICIPATED  RATE  OF   PAYMENTS  IN  RESPECT   OF  PRINCIPAL  (INCLUDING
PREPAYMENTS) ON THE MORTGAGE LOANS COULD RESULT IN AN ACTUAL YIELD THAT IS LOWER
THAN ANTICIPATED FOR  INVESTORS PURCHASING  OFFERED CERTIFICATES  AT A  PREMIUM.
INVESTORS  PURCHASING OFFERED CERTIFICATES AT A PREMIUM SHOULD ALSO CONSIDER THE
RISK  THAT  A  RAPID  RATE  OF  PAYMENTS  IN  RESPECT  OF  PRINCIPAL  (INCLUDING
PREPAYMENTS) ON THE MORTGAGE LOANS COULD RESULT IN THE FAILURE OF SUCH INVESTORS
TO  FULLY  RECOVER  THEIR  INITIAL  INVESTMENTS.  THE  YIELD  ON  THE  CLASS  AP
CERTIFICATES WILL BE  INFLUENCED BY  PRINCIPAL PAYMENTS SOLELY  WITH RESPECT  TO
DISCOUNT MORTGAGE LOANS.
 
    The  timing of changes in  the rate of prepayment  on the Mortgage Loans may
significantly affect the actual yield to maturity experienced by an investor who
purchases an Offered Certificate at a price other than par, even if the  average
rate  of  principal  payments  experienced over  time  is  consistent  with such
investor's expectation. In general, the earlier a prepayment of principal on the
underlying Mortgage Loans, the  greater the effect on  such investor's yield  to
maturity. As a result, the effect on such investor's yield of principal payments
occurring  at a rate higher (or lower) than the rate anticipated by the investor
during the period immediately following the issuance of the Offered Certificates
would not be fully offset  by a subsequent like  reduction (or increase) in  the
rate of principal payments.
 
    The  yield to maturity  on the Class  M Certificates will  be more sensitive
than the yield to maturity on the Senior Certificates to losses due to  defaults
on the Mortgage Loans (and the timing thereof), to the extent not covered by the
Class B Certificates, because the entire amount of such losses will be allocable
to  the  Class  M  Certificates  prior to  the  Senior  Certificates,  except as
otherwise provided  herein. To  the  extent not  covered by  Periodic  Advances,
delinquencies on Mortgage Loans may also have a relatively greater effect on the
yield  to investors in the Class M Certificates. Amounts otherwise distributable
to holders of the  Class M Certificates  will be made  available to protect  the
holders of the Senior Certificates against interruptions in distributions due to
certain  mortgagor delinquencies. Such delinquencies,  to the extent not covered
by the Class B Certificates, even  if subsequently cured, may affect the  timing
of  the receipt of distributions by the holders of Class M Certificates, because
the entire  amount  of  those  delinquencies  would be  borne  by  the  Class  M
Certificates prior to the Senior Certificates.
 
    The  yield to maturity on the  Offered Certificates and more particularly on
the Class M Certificates may be affected by the geographic concentration of  the
Mortgaged  Properties securing the Mortgage Loans,  and the yield to maturity on
the Class  AP  Certificates  may  be particularly  affected  by  the  geographic
concentration  of the Mortgaged Properties securing the Discount Mortgage Loans.
In recent periods,  California and several  other regions in  the United  States
have experienced significant declines in housing prices. In addition, California
and   several  other  regions  have  experienced  natural  disasters,  including
earthquakes  and  floods,  which  may  adversely  affect  property  values.  Any
deterioration  in housing prices in California, as well  as              and the
other  states  in  which   the  Mortgaged  Properties   are  located,  and   any
deterioration of economic conditions in such states which
 
                                      S-69
<PAGE>
adversely  affects the  ability of  borrowers to  make payments  on the Mortgage
Loans, may increase the likelihood of losses on the Mortgage Loans. Such losses,
if they  occur, may  have an  adverse effect  on the  yield to  maturity of  the
Offered Certificates and more particularly on the Class M Certificates.
 
    No  representation  is made  as to  the  rate of  principal payments  on the
Mortgage Loans  or as  to the  yield to  maturity of  any Subclass  or Class  of
Offered  Certificates. An investor is urged  to make an investment decision with
respect  to  any  Subclass  or  Class  of  Offered  Certificates  based  on  the
anticipated  yield to maturity of such Subclass or Class of Offered Certificates
resulting from its purchase  price and such investor's  own determination as  to
anticipated  Mortgage Loan  prepayment rates under  a variety  of scenarios. The
extent to which any Subclass or Class of Offered Certificates are purchased at a
discount or  a  premium and  the  degree to  which  such Subclass  or  Class  is
sensitive  to the timing of  prepayments will determine the  extent to which the
yield to maturity of such Subclass or Class may vary from the anticipated yield.
An investor should carefully  consider the associated  risks, including, in  the
case  of any Subclass or Class of  Offered Certificates purchased at a discount,
particularly the Class AP Certificates, the risk that a slower than  anticipated
rate of principal payments on the Mortgage Loans, or in the case of the Class AP
Certificates, on the Discount Mortgage Loans, could result in an actual yield to
such  investor that is lower than the anticipated  yield and, in the case of any
Subclass or Class of Offered Certificates purchased at a premium the risk that a
faster than anticipated  rate of principal  payments could result  in an  actual
yield to such investor that is lower than the anticipated yield.
 
    An  investor should consider the risk that rapid rates of prepayments on the
Mortgage Loans, and therefore of amounts distributable in reduction of principal
balance of the Offered Certificates, may coincide with periods of low prevailing
interest rates. During such periods, the effective interest rates on  securities
in  which an investor may choose to reinvest amounts distributed in reduction of
the principal balance of such investor's  Offered Certificate may be lower  than
the  applicable Pass-Through Rate or, in the  case of the Class AP Certificates,
the anticipated yield thereon.  Conversely, slower rates  of prepayments on  the
Mortgage Loans, and therefore of amounts distributable in reduction of principal
balance  of  the  Offered  Certificates,  may  coincide  with  periods  of  high
prevailing  interest  rates.  During  such  periods,  the  amount  of  principal
distributions  available to an investor for reinvestment at such high prevailing
interest rates may be relatively small.
 
    As indicated under "Federal Income Tax Considerations" herein, the Class A-R
Certificateholder's REMIC  taxable  income and  the  tax liability  thereon  may
exceed,  and may substantially exceed, cash distributions to such holders during
certain periods.  There can  be no  assurance as  to the  amount by  which  such
taxable  income or such tax liability  will exceed cash distributions in respect
of the Class  A-R Certificate during  any such period  and no representation  is
made  with respect thereto under any principal prepayment scenario or otherwise.
DUE TO THE SPECIAL TAX TREATMENT OF RESIDUAL INTERESTS, THE AFTER-TAX RETURN  OF
THE  CLASS A-R CERTIFICATE MAY BE SIGNIFICANTLY  LOWER THAN WOULD BE THE CASE IF
THE CLASS A-R CERTIFICATE WERE TAXED AS A DEBT INSTRUMENT, OR MAY BE NEGATIVE.
 
    As referred to herein, the weighted average  life of a Subclass or Class  of
the  Offered Certificates refers to the average  amount of time that will elapse
from the  date of  issuance  of such  Subclass or  Class  until each  dollar  in
reduction  of the principal balance of such  Subclass or Class is distributed to
the investor. The weighted average life of each Subclass or Class of the Offered
Certificates will be influenced by, among  other things, the rate and timing  of
principal  payments on the Mortgage Loans, which may be in the form of scheduled
amortization, prepayments or other recoveries of principal.
 
    THE WEIGHTED  AVERAGE LIFE  OF  THE COMPANION  CERTIFICATES WILL  BE  HIGHLY
SENSITIVE  TO  THE RATE  OF PRINCIPAL  PAYMENTS  (INCLUDING PREPAYMENTS)  ON THE
MORTGAGE LOANS.  Specifically, if  prepayments  result in  a Class  A  Principal
Amount  equal to or  less than the sum  of the PAC Principal  Amount and the TAC
Principal Amount  on  any Distribution  Date,  the Companion  Certificates  will
receive  no distributions in  reduction of principal  on such Distribution Date.
Further, on each Distribution Date up  to an including the Distribution Date  on
which  the Class A  Subclass Principal Balance of  the Companion Certificates is
reduced to zero, any Excess Principal  Payments for such Distribution Date  will
be
 
                                      S-70
<PAGE>
applied  to  the  Companion Certificates  before  being distributed  to  the TAC
Certificates and  the PAC  Certificates in  the proportions  and priorities  set
forth  above  under "Description  of  the Certificates  --  Principal (Including
Prepayments)." See  "Description of  the  Certificates --  Principal  (Including
Prepayments)  -- Principal Payment Characteristics  of the PAC Certificates, the
TAC Certificates and the Companion Certificates."
 
    Prepayments on mortgage loans are commonly measured relative to a prepayment
standard or model. The  model used in this  Prospectus Supplement, the  Standard
Prepayment  Assumption ("SPA"),  represents an  assumed rate  of prepayment each
month relative  to the  then outstanding  principal  balance of  a pool  of  new
mortgage  loans. A prepayment assumption of 100% SPA assumes constant prepayment
rates of  0.2% per  annum of  the  then outstanding  principal balance  of  such
mortgage  loans in  the first  month of the  life of  the mortgage  loans and an
additional 0.2% per annum  in each month thereafter  until the thirtieth  month.
Beginning in the thirtieth month and in each month thereafter during the life of
the  mortgage loans, 100% SPA assumes a constant prepayment rate of 6% per annum
each month. As used in the table below, "0% SPA" assumes prepayment rates  equal
to  0%  of  SPA, I.E.,  no  prepayments. Correspondingly,  "     %  SPA" assumes
prepayment rates equal to    % of SPA, and so forth. SPA DOES NOT PURPORT TO  BE
A  HISTORICAL  DESCRIPTION  OF  PREPAYMENT EXPERIENCE  OR  A  PREDICTION  OF THE
ANTICIPATED RATE OF  PREPAYMENT OF  ANY POOL  OF MORTGAGE  LOANS, INCLUDING  THE
MORTGAGE LOANS.
 
    The  tables  set  forth  below  have  been  prepared  on  the  basis  of the
characteristics of the Mortgage  Loans that are expected  to be included in  the
Trust  Estate, as described above under "Description of the Mortgage Loans." The
tables assume, among other things, that (i) the scheduled payment in each  month
for each Mortgage Loan has been based on its outstanding balance as of the first
day of the month preceding the month of such payment, its Mortgage Interest Rate
and its remaining term to stated maturity, so that such scheduled payments would
amortize the remaining balance by its remaining term to maturity, (ii) scheduled
monthly  payments of principal and interest on the Mortgage Loans will be timely
received on  the first  day of  each  month (with  no defaults),  commencing  in
              199  , (iii) the Seller does  not repurchase any Mortgage Loan, as
described under "Description of  the Mortgage Loans  -- Mandatory Repurchase  or
Substitution  of Mortgage Loans" herein, and  Norwest Mortgage does not exercise
its option to purchase the Mortgage Loans and thereby cause a termination of the
Trust Estate, (iv) principal prepayments in  full on the Mortgage Loans will  be
received  on the last day of each month commencing  in                199 at the
respective constant percentages of SPA set forth in the tables and there are  no
partial  principal prepayments or Prepayment Interest Shortfalls, (v) the Series
199 Certificates will be issued on               , 199 and (vi) distributions to
Certificateholders will be  made on the  25th day of  each month, commencing  in
199  . IT IS HIGHLY UNLIKELY THAT THE MORTGAGE LOANS WILL PREPAY AT ANY CONSTANT
RATE, THAT ALL OF THE  MORTGAGE LOANS WILL PREPAY AT  THE SAME RATE OR THAT  THE
MORTGAGE  LOANS  WILL  NOT EXPERIENCE  ANY  LOSSES.  In addition,  there  may be
differences  between  the  characteristics  of  the  mortgage  loans  ultimately
included  in the  Trust Estate and  the Mortgage  Loans which are  assumed to be
included, as described above. Any difference may have an effect upon the  actual
percentages  of initial Class A Subclass  Principal Balance of the Subclasses of
Class A Certificates,  initial principal balances  of the Class  AP and Class  M
Certificates,  the actual  weighted average lives  of the Subclasses  of Class A
Certificates and the Class AP and Class M Certificates and the date on which the
Class A Subclass Principal Balance of  any Subclass of Class A Certificates  and
the  principal balances of the Class AP  and Class M Certificates are reduced to
zero.
 
    Based upon  the foregoing  assumptions, the  following tables  indicate  the
weighted  average life of  each Subclass and Class  of Offered Certificates, and
set forth the percentages of the  initial Class A Subclass Principal Balance  of
each such Subclass and, in the case of the Class AP and Class M Certificates, of
the  initial principal balances  of the Class  AP and Class  M Certificates that
would be outstanding after  each of the dates  shown at constant percentages  of
SPA presented.
 
                                      S-71
<PAGE>
   PERCENTAGE OF INITIAL SUBCLASS OR CLASS PRINCIPAL BALANCE OUTSTANDING FOR:
<TABLE>
<CAPTION>
                                               CLASS A-1                                              CLASS A-2
                                          CERTIFICATES AT THE                                    CERTIFICATES AT THE
                                         FOLLOWING PERCENTAGES                                  FOLLOWING PERCENTAGES
                                                OF SPA                                                 OF SPA
              ---------------------------------------------------------------------------  -------------------------------
 
DISTRIBUTION
    DATE         0%          %          %          %          %          %          %         0%          %          %
<S>           <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
 
<CAPTION>
DISTRIBUTION
    DATE          %          %          %          %
<S>           <C>        <C>        <C>        <C>
</TABLE>
 
- ------------------------------
(1)  The  weighted average life  of an Offered Certificate  is determined by (i)
     multiplying the  amount  of each  distribution  in reduction  of  principal
     balance  by  the number  of years  from the  date of  the issuance  of such
     Certificate to the related Distribution  Date, (ii) adding the results  and
     (iii)  dividing  the sum  by the  aggregate  distributions in  reduction of
     principal balance referred to in clause (i).
 
   PERCENTAGE OF INITIAL SUBCLASS OR CLASS PRINCIPAL BALANCE OUTSTANDING FOR:
<TABLE>
<CAPTION>
                                               CLASS A-3                                              CLASS A-4
                                          CERTIFICATES AT THE                                    CERTIFICATES AT THE
                                         FOLLOWING PERCENTAGES                                  FOLLOWING PERCENTAGES
                                                OF SPA                                                 OF SPA
              ---------------------------------------------------------------------------  -------------------------------
 
DISTRIBUTION
    DATE         0%          %          %          %          %          %          %         0%          %          %
<S>           <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
 
<CAPTION>
DISTRIBUTION
    DATE          %          %          %          %
<S>           <C>        <C>        <C>        <C>
</TABLE>
 
- ------------------------------
(1)  The weighted average life  of an Offered Certificate  is determined by  (i)
     multiplying  the  amount of  each  distribution in  reduction  of principal
     balance by  the number  of years  from the  date of  the issuance  of  such
     Certificate  to the related Distribution Date,  (ii) adding the results and
     (iii) dividing  the sum  by  the aggregate  distributions in  reduction  of
     principal balance referred to in clause (i).
 
                                      S-72
<PAGE>
   PERCENTAGE OF INITIAL SUBCLASS OR CLASS PRINCIPAL BALANCE OUTSTANDING FOR:
<TABLE>
<CAPTION>
                                               CLASS A-5                                              CLASS A-R
                                          CERTIFICATES AT THE                                    CERTIFICATE AT THE
                                         FOLLOWING PERCENTAGES                                  FOLLOWING PERCENTAGES
                                                OF SPA                                                 OF SPA
              ---------------------------------------------------------------------------  -------------------------------
 
DISTRIBUTION
    DATE         0%          %          %          %          %          %          %         0%          %          %
<S>           <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
 
<CAPTION>
DISTRIBUTION
    DATE          %          %          %          %
<S>           <C>        <C>        <C>        <C>
</TABLE>
 
- ------------------------------
(1)  The  weighted average life  of an Offered Certificate  is determined by (i)
     multiplying the  amount  of each  distribution  in reduction  of  principal
     balance  by  the number  of years  from the  date of  the issuance  of such
     Certificate to the related Distribution  Date, (ii) adding the results  and
     (iii)  dividing  the sum  by the  aggregate  distributions in  reduction of
     principal balance referred to in clause (i).
 
    Interest accrued on the Class A and Class M Certificates will be reduced  by
the  amount  of  any interest  portions  of  Realized Losses  allocated  to such
Certificates as described  under "Description of  the Certificates --  Interest"
herein.  The yield on the Class A Certificates and the Class M Certificates will
be less than the yield otherwise produced by their respective Pass-Through Rates
and the prices  at which such  Certificates are purchased  because the  interest
which accrues on the Mortgage Loans during each month will not be passed through
to  Certificateholders until the 25th day of the month following the end of such
month (or if such 25th day is not a business day, the following business day).
 
    [The Seller  intends  to file  certain  additional yield  tables  and  other
computational  materials with  respect to one  or more Subclasses  or Classes of
Offered Certificates with the Securities and Exchange Commission in a Report  on
Form  8-K.  See  "Incorporation  Of  Certain  Documents  By  Reference"  in  the
Prospectus. Such tables and materials will have been prepared by the Underwriter
at the request of certain  prospective investors, based on assumptions  provided
by,  and satisfying the special requirements of, such investors. Such tables and
assumptions may be  based on assumptions  that differ from  the assumptions  set
forth  in  clauses (i)  through (vii)  of the  first full  paragraph on  page S-
hereof. Accordingly, such tables and other  materials may not be relevant to  or
appropriate for investors other than those specifically requesting them.]
 
SENSITIVITY OF THE CLASS AP CERTIFICATES
 
    THE  YIELD  TO AN  INVESTOR  IN THE  CLASS  AP CERTIFICATES  WILL  BE HIGHLY
SENSITIVE TO THE RATE AND  TIMING OF PRINCIPAL PAYMENTS (INCLUDING  PREPAYMENTS)
OF THE DISCOUNT MORTGAGE LOANS, WHICH RATE MAY FLUCTUATE SIGNIFICANTLY FROM TIME
TO  TIME. AN INVESTOR SHOULD FULLY  CONSIDER THE ASSOCIATED RISKS, INCLUDING THE
RISK THAT A RELATIVELY SLOW  RATE OF PRINCIPAL PAYMENTS (INCLUDING  PREPAYMENTS)
ON  THE DISCOUNT MORTGAGE LOANS  WILL HAVE A NEGATIVE EFFECT  ON THE YIELD TO AN
INVESTOR IN THE  CLASS AP CERTIFICATES.  THE DISCOUNT MORTGAGE  LOANS WILL  HAVE
LOWER  NET MORTGAGE  INTEREST RATES THAN  THE OTHER MORTGAGE  LOANS. IN GENERAL,
MORTGAGE LOANS WITH LOWER MORTGAGE INTEREST RATES MAY TEND TO PREPAY AT A SLOWER
RATE OF PAYMENT  IN RESPECT  OF PRINCIPAL  THAN MORTGAGE  LOANS WITH  RELATIVELY
HIGHER MORTGAGE INTEREST RATES, IN RESPONSE TO CHANGES IN MARKET INTEREST RATES.
AS  A RESULT, THE DISCOUNT MORTGAGE LOANS MAY PREPAY AT A SLOWER RATE OF PAYMENT
IN RESPECT OF  PRINCIPAL THAN  THE OTHER MORTGAGE  LOANS, RESULTING  IN A  LOWER
YIELD  ON  THE CLASS  AP CERTIFICATES  THAN WOULD  BE THE  CASE IF  THE DISCOUNT
MORTGAGE LOANS PREPAID AT THE SAME RATE AS THE OTHER MORTGAGE LOANS.
 
                                      S-73
<PAGE>
    The following table indicates the sensitivity to various rates of prepayment
on the Discount Mortgage Loans of the pre-tax yields to maturity on a  corporate
bond  equivalent ("CBE") basis  of the Class  AP Certificates. Such calculations
are  based  on  distributions  made  in  accordance  with  "Description  of  the
Certificates"  above, on the assumptions described  in clauses (i) through (vii)
of the first full paragraph on page  S- and on the further assumptions that  (i)
the  Class AP Certificates  will be purchased  on                    , 199 at an
aggregate purchase price of    %  of the initial Class AP Principal Balance  and
(ii)  distributions to holders of the Class  AP Certificates will be made on the
25th day of each month commencing in               199 .
 
  SENSITIVITY OF THE PRE-TAX YIELD ON THE CLASS AP CERTIFICATES TO PREPAYMENTS
 
<TABLE>
<CAPTION>
                                                         PERCENTAGES OF SPA
                                --------------------------------------------------------------------
 
                                   0%        %         %         %         %         %         %
                                --------  --------  --------  --------  --------  --------  --------
<S>                             <C>       <C>       <C>       <C>       <C>       <C>       <C>
Pre-Tax Yield (CBE)...........          %         %         %         %         %         %         %
</TABLE>
 
    The pre-tax yields set forth in  the preceding table were calculated by  (i)
determining the monthly discount rates which, when applied to the assumed stream
of  cash  flows  to  be paid  on  the  Class AP  Certificates,  would  cause the
discounted present  value of  such assumed  stream  of cash  flows to  equal  an
assumed  aggregate purchase price for the Class AP Certificates of approximately
   % of the initial Class AP Principal Balance and (ii) converting such  monthly
rates  to corporate bond  equivalent rates. Such calculation  does not take into
account the interest  rates at  which investors may  be able  to reinvest  funds
received  by them as distributions on the Class AP Certificates and consequently
does not  purport to  reflect  the return  on any  investment  in the  Class  AP
Certificates when such reinvestment rates are considered.
 
    NOTWITHSTANDING  THE  ASSUMED PREPAYMENT  RATES  REFLECTED IN  THE PRECEDING
TABLE, IT IS HIGHLY UNLIKELY THAT THE  DISCOUNT MORTGAGE LOANS WILL PREPAY AT  A
CONSTANT  RATE UNTIL MATURITY  OR THAT ALL  OF THE DISCOUNT  MORTGAGE LOANS WILL
PREPAY AT THE SAME RATE. The  Discount Mortgage Loans initially included in  the
Trust  Estate may  differ from  those currently expected  to be  included in the
Trust  Estate,  and  thereafter  may  be  changed  as  a  result  of   permitted
substitutions.  As a result of these factors, the pre-tax yields on the Class AP
Certificates are likely to differ from those shown in such table, even if all of
the Discount Mortgage Loans prepay at the indicated percentages of SPA.
 
                        POOLING AND SERVICING AGREEMENT
GENERAL
 
    The Series  199 -  Certificates will  be issued  pursuant to  a Pooling  and
Servicing Agreement to be dated as of the date of initial issuance of the Series
199 - Certificates (the "Pooling and Servicing Agreement") among the Seller, the
Master  Servicer  and  the Trustee.  Reference  is  made to  the  Prospectus for
important additional  information  regarding the  terms  and conditions  of  the
Pooling  and Underlying Servicing  Agreement and the  Series 199 - Certificates.
See "Description of  the Certificates,"  "Servicing of the  Mortgage Loans"  and
"The Pooling and Servicing Agreement" in the Prospectus.
 
    The  Trust Estate  created pursuant to  the Pooling  and Servicing Agreement
will consist of (i)  the Mortgage Loans as  described under "Description of  the
Mortgage  Loans,"  (ii) such  assets  as from  time  to time  are  identified as
deposited in any account held for  the benefit of the Certificateholders,  (iii)
any  Mortgaged  Properties  acquired  on  behalf  of  the  Certificateholders by
foreclosure or  by  deed in  lieu  of foreclosure  after  the date  of  original
issuance  of the  Certificates, (iv)  the rights of  the Trustee  to receive the
proceeds of all insurance policies and performance bonds, if any, required to be
maintained pursuant to the Pooling  and Servicing Agreement, (v) certain  rights
of  the Seller to the enforcement of  representations and warranties made by the
Representing Parties relating to the Mortgage Loans, and (vi) the rights of  the
Trustee under the Norwest Mortgage Loan Purchase Agreement.
 
                                      S-74
<PAGE>
DISTRIBUTIONS
 
    Distributions  (other than the final distribution in retirement of the Class
A Certificates of each Subclass) will be made by check mailed to the address  of
the  person entitled thereto as it appears on the Certificate Register. However,
with respect  to any  holder of  a Class  A Certificate  evidencing at  least  a
$5,000,000  initial principal balance  or any holder  of a Class  AP, Class M or
Offered Class B Certificate evidencing a 100% Percentage Interest, distributions
will be made on the Distribution Date by wire transfer in immediately  available
funds,  provided that the Master Servicer, or  the paying agent acting on behalf
of the  Master  Servicer, shall  have  been furnished  with  appropriate  wiring
instructions not less than seven business days prior to the related Distribution
Date. The final distribution in respect of each Subclass of Offered Certificates
will  be made only upon presentation and surrender of the related Certificate at
the office or agency appointed by the  Trustee specified in the notice of  final
distribution with respect to the related Subclass or Class.
 
    Unless  Definitive Certificates  are issued  as described  above, the Master
Servicer, the Trustee and the  Master Servicer will treat  DTC as the Holder  of
the  Book-Entry Certificates  for all  purposes, including  making distributions
thereon and  taking  actions with  respect  thereto. DTC  will  make  book-entry
transfers among its participants with respect to the Book-Entry Certificates; it
will  also receive distributions on the Book-Entry Certificates from the Trustee
and transmit them to participants for distribution to Beneficial Owners or their
nominees.
 
VOTING
 
    With respect  to  any provisions  of  the Pooling  and  Servicing  Agreement
providing  for the  action, consent  or approval  of the  holders of  all Series
199 - Certificates evidencing  specified Voting Interests  in the Trust  Estate,
the  holders of  the Class  A Certificates  will collectively  be entitled  to a
percentage (the  "Class A  Voting Interest")  of the  aggregate Voting  Interest
represented  by all Series  199 - Certificates  equal to the  product of (i) the
then applicable Class A Percentage and  (ii) the ratio obtained by dividing  the
Pool  Balance (Classes A/M/B  Portion) by the  sum of the  Pool Balance (Classes
A/M/B Portion)  and the  Pool Balance  (Class AP  Portion) (the  "Classes  A/M/B
Voting Interest"); the holders of the Class AP Certificates will collectively be
entitled  to a  percentage of the  aggregate Voting Interest  represented by all
Series 199 - Certificates equal to the percentage obtained by dividing the  Pool
Balance  (Class AP Portion) by the sum of the Pool Balance (Class A/M/B Portion)
and the Pool Balance (Class AP Portion); the holders of the Class M Certificates
will collectively be entitled to the then applicable percentage of the aggregate
Voting Interest  represented by  all  Series 199  -  Certificates equal  to  the
product  of (i) the ratio obtained by  dividing the Class M Principal Balance by
the sum of the Class A Principal Balance, the Class M Principal Balance and  the
Class  B  Principal Balance  and  (ii) the  Classes  A/M/B Voting  Interest. The
aggregate Voting Interests of each Subclass of Class A Certificates on any  date
will be equal to the product of (a) the Class A Voting Interest on such date and
(b)  the fraction obtained by dividing the Class A Subclass Principal Balance of
such Subclass on such date by  the aggregate Class A Subclass Principal  Balance
of  the Class A Certificates on such  date. 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 of the Pooling and Servicing Agreement  providing
for  action, consent or  approval of each  Class or Subclass  of Certificates or
specified Classes or  Subclasses of  Certificates, each  Certificateholder of  a
Subclass  will have a  Voting Interest in  such Subclass equal  to such holder's
Percentage Interest in such Subclass. Unless Definitive Certificates are  issued
as  described above, Beneficial  Owners of Book-Entry  Certificates may exercise
their voting rights only through DTC Participants.
 
TRUSTEE
 
    The Trustee for the Series 199 - Certificates will  be                  ,  a
[national  banking association].  The Corporate Trust  Office of  the Trustee is
located at                               . The Trustee  will be responsible  for
monitoring  the compliance of the Master Servicer with the Pooling and Servicing
Agreement and the Underlying Servicing Agreements and make Periodic Advances  to
the  limited extent described herein with respect to the Mortgage Loans serviced
by Norwest Mortgage if
 
                                      S-75
<PAGE>
Norwest Mortgage, as Servicer, fails to make a Periodic Advance required by  the
Underlying  Servicing Agreement. See "The Pooling and Servicing Agreement -- The
Trustee" in the  Prospectus. The  Trustee will be  entitled to  a "Trustee  Fee"
payable  monthly equal to  the product of  (i) 1/12th of  a fixed percentage per
annum as set  forth in  the Pooling and  Servicing Agreement  (the "Trustee  Fee
Rate") and (ii) the aggregate Scheduled Principal Balances of the Mortgage Loans
as of the first day of each month.
 
MASTER SERVICER
 
    Norwest  Bank will act  as "Master Servicer"  of the Mortgage  Loans and, in
that capacity,  will supervise  the  servicing of  the Mortgage  Loans,  service
Mortgage Loans in the event a Servicer is terminated and a successor servicer is
not  appointed, provide  certain reports to  the Trustee  regarding the Mortgage
Loans and the  Certificates and  make Periodic  Advances to  the limited  extent
described  herein with respect  to the Mortgage  Loans if a  Servicer other than
Norwest Mortgage  fails to  make  a Periodic  Advance  required by  the  related
Underlying  Servicing  Agreement.  The Master  Servicer  will be  entitled  to a
"Master Servicing Fee" payable monthly equal to  the product of (i) 1/12th of  a
fixed  percentage per annum as set forth  in the Pooling and Servicing Agreement
(the "Master Servicing  Fee Rate")  and (ii) the  aggregate Scheduled  Principal
Balances  of the Mortgage  Loans as of the  first day of  each month. The Master
Servicer will pay  all administrative expenses  to the Trust  Estate subject  to
reimbursement as described under "Master Servicer" in the Prospectus.
 
OPTIONAL TERMINATION
 
    At  its option,  the Seller may  purchase from  the Trust Estate  all of the
Mortgage Loans,  and  thereby  effect  early retirement  of  the  Series  199  -
Certificates, on any Distribution Date when the Pool Scheduled Principal Balance
is  less than     %  of the Cut-Off  Date Aggregate Principal  Balance. Any such
purchase will be made only in  connection with a "qualified liquidation" of  the
REMIC  within the  meaning of  Section 860F(a)(4)(A)  of the  Code. The purchase
price will generally be equal to  the unpaid principal balance of each  Mortgage
Loan  plus  the fair  market value  of other  property (including  any Mortgaged
Property title to which has been acquired by the Trust Estate ("REO  Property"))
in  the Trust  Estate plus accrued  interest. In  the event the  Trust Estate is
liquidated as described above, holders of the Certificates, to the extent  funds
are  available, will receive the unpaid  principal balance of their Certificates
and any accrued and  unpaid interest thereon. The  amount, if any, remaining  in
the  Certificate Account after the payment of  all principal and interest on the
Certificates and expenses of the REMIC will be distributed to the holder of  the
Class A-R Certificate. See "Description of the Certificates -- Additional Rights
of  the  Class  A-R Certificateholder"  herein  and "The  Pooling  and Servicing
Agreement -- Termination; Purchase of Mortgage Loans" in the Prospectus.
 
                                      S-76
<PAGE>
                        SERVICING OF THE MORTGAGE LOANS
 
    Norwest Mortgage will service approximately     % (by Cut-Off Date Aggregate
Principal  Balance) of  the Mortgage Loans  and the servicers  listed below (the
"Other Servicers", and collectively with Norwest Mortgage, the "Servicers") will
service the balance  of the  Mortgage Loans, as  indicated, each  pursuant to  a
separate  Underlying  Servicing Agreement.  The  rights to  enforce  the related
Servicer's obligations under each Underlying Servicing Agreement with respect to
the related Mortgage Loans will  be assigned to the  Trustee for the benefit  of
Certificateholders.  Among  other  things,  the  Servicers  are  obligated under
certain circumstances to advance delinquent  payments of principal and  interest
with respect to the Mortgage Loans. See "Servicing of the Mortgage Loans" in the
Prospectus.
 
THE SERVICERS
 
    The Mortgage Loans initially will be serviced by the following entities:
 
<TABLE>
<CAPTION>
                                                                       APPROXIMATE PERCENTAGE OF CUT-OFF
                                                                       DATE AGGREGATE PRINCIPAL BALANCE
NAME OF SERVICER                                                                   SERVICED
- ---------------------------------------------------------------------  ---------------------------------
<S>                                                                    <C>
Norwest Mortgage, Inc................................................                       %
                                                                                            %
                                                                                            %
                                                                                            %
                                                                                            %
                                                                                            %
                                                                                            %
                                                                                            %
                                                                                            %
                                                                                     -------
    Total............................................................                 100.00%
                                                                                     -------
                                                                                     -------
</TABLE>
 
    Certain information with respect to the loan servicing experience of Norwest
Mortgage  is set  forth under "Norwest  Mortgage --  Delinquency and Foreclosure
Experience."
 
SERVICER CUSTODIAL ACCOUNTS
 
    Each Servicer is required to establish and maintain a custodial account  for
principal and interest (each such account, a "Servicer Custodial Account"), into
which  it  will  deposit  all  collections  of  principal  (including  principal
prepayments and Liquidation  Proceeds in respect  of principal, if  any) on  any
Mortgage  Loan that such Servicer services,  interest (net of Servicing Fees) on
any Mortgage  Loan  that such  Servicer  services, related  insurance  proceeds,
advances  made from the Servicer's own funds and the proceeds of any purchase of
a related Mortgage Loan for breach of  a representation or warranty or the  sale
of  a Mortgaged Property in connection  with liquidation of the related Mortgage
Loan. All Servicer Custodial  Accounts are required to  be held in a  depository
institution  and  invested in  the manner  specified  in the  related Underlying
Servicing Agreement. Funds in such accounts generally must be held separate  and
apart  from the assets of the Servicer  and generally may not be commingled with
funds held by a Servicer with respect to mortgage loans other than the  Mortgage
Loans.
 
    Not  later than the Remittance Date, the Servicers are obligated to remit to
the Certificate  Account  all  amounts  on deposit  in  the  Servicer  Custodial
Accounts  as  of  the  close  of business  on  the  business  day  preceding the
Remittance Date other than the following:
 
        (a)  amounts  received  as  late  payments  of  principal  or   interest
    respecting  which such Servicer previously has made one or more unreimbursed
    Periodic Advances;
 
        (b) any unreimbursed Periodic Advances of such Servicer with respect  to
    Liquidated Loans;
 
                                      S-77
<PAGE>
        (c)  those portions of each payment of interest on a particular Mortgage
    Loan which  represent  the  applicable  Servicing  Fee,  as  adjusted  where
    applicable  in respect of Prepayment  Interest Shortfalls as described under
    "Description of the Certificates -- Interest";
 
        (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 proceeds of any Mortgage Loans, or property acquired in  respect
    thereof,  liquidated, foreclosed,  purchased or repurchased  pursuant to the
    Pooling and Servicing  Agreement (other than  Partial Liquidation  Proceeds)
    received by such Servicer on or after the Due Date occurring in the month in
    which  such  Distribution Date  occurs, all  principal prepayments  in full,
    partial principal prepayments and  Partial Liquidation Proceeds on  Mortgage
    Loans  received on or after the Determination Date occurring in the month in
    which such Distribution Date occurs, and all related payments of interest on
    such amounts;
 
        (f) all  amounts  representing  certain expenses  reimbursable  to  such
    Servicer  and any other amounts permitted to be retained by such Servicer or
    withdrawn by such Servicer from  the Servicer Custodial Account pursuant  to
    the applicable Underlying Servicing Agreement;
 
        (g)  all amounts in the nature of late fees, assumption fees, prepayment
    fees and  similar  fees  which  such  Servicer  is  entitled  to  retain  as
    additional servicing compensation; and
 
        (h)  reinvestment  earnings  on  payments  received  in  respect  of the
    Mortgage Loans  or on  other  amounts on  deposit  in the  related  Servicer
    Custodial Account.
 
FIXED RETAINED YIELD; SERVICING COMPENSATION AND PAYMENT OF EXPENSES
 
    The  primary compensation payable to each  of the Servicers is the aggregate
of the Servicing Fees  applicable to the related  Mortgage Loans. The  Servicing
Fee  applicable to each  Mortgage Loan is  expressed as a  fixed percentage (the
"Servicing Fee Rate") of the Scheduled  Principal Balance of such Mortgage  Loan
as of the first day of each month. The Servicing Fee Rate for each Mortgage Loan
will  be a fixed  percentage rate per annum.  The Servicing Fee  Rate, as of the
Cut-Off Date, is expected to range from approximately     % to     % per  annum.
In  addition to the Servicing Fees, late  payment fees, loan assumption fees and
prepayment fees with respect  to the Mortgage Loans,  and any interest or  other
income  earned  on  collections  with  respect  to  the  Mortgage  Loans pending
remittance to  the Certificate  Account, will  be  paid to  or retained  by  the
Servicers  as additional servicing  compensation. The Servicing  Fees payable to
such Servicer with respect  to the Mortgage Loans  serviced by Norwest  Mortgage
are  subject to reduction  in any month to  cover Prepayment Interest Shortfalls
with respect to such Mortgage Loans.
 
    A fixed  percentage  of the  interest  on  each Mortgage  Loan  (the  "Fixed
Retained  Yield") with a per  annum Mortgage Interest Rate  greater than (i) the
sum of (a)     %, (b) the Servicing Fee Rate, (c) the Master Servicing Fee  Rate
and  (d) the Trustee 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  rate
described in clause (i), will not be included in the Trust Estate. There will be
no Fixed Retained Yield on any Mortgage Loan with a Mortgage Interest Rate equal
to or less than the rate described in clause (i). See "Servicing of the Mortgage
Loans  -- Fixed Retained Yield, Servicing  Compensation and Payment of Expenses"
in the Prospectus for information  regarding other possible compensation to  the
Servicer.  The servicing fees and other expenses  of the REMIC will be allocated
to a holder of the Class A-R  Certificate who is an individual, estate or  trust
(whether  such  Certificate is  held  directly or  through  certain pass-through
entities) as additional  gross income  without a  corresponding distribution  of
cash,  and  any such  investor (or  its owners,  in the  case of  a pass-through
entity) may be limited in  its ability to deduct  such expenses for regular  tax
purposes  and  may  not  be able  to  deduct  such expenses  to  any  extent for
alternative minimum tax purposes. See  "Certain Federal Income Tax  Consequences
- --  Federal Income  Tax Consequences  for REMIC  Certificates --  Limitations on
Deduction of Certain Expenses" in the Prospectus.
 
                                      S-78
<PAGE>
SERVICER DEFAULTS
 
    The Trustee  will  have  the  right pursuant  to  the  Underlying  Servicing
Agreements  to terminate a  Servicer in certain events,  including the breach by
such Servicer of any of its material obligations under its Underlying  Servicing
Agreement.  In the event of  such termination, (i) the  Trustee may enter into a
substitute Underlying Servicing Agreement  with the Master  Servicer or, at  the
Master  Servicer's nomination,  another servicing institution  acceptable to the
Trustee and  each Rating  Agency;  and (ii)  the  Master Servicer  shall  assume
certain  of the Servicer's servicing obligations under such Underlying Servicing
Agreement, including  the  obligation  to make  Periodic  Advances  (limited  as
provided  herein under the heading "Pooling  and Servicing Agreement -- Periodic
Advances"), until such time as a successor servicer is appointed. Any  successor
Servicer,  including the  Master Servicer  or the  Trustee, will  be entitled to
compensation arrangements  similar  to  those  provided  to  the  Servicer.  See
"Servicing of the Mortgage Loans -- Fixed Retained Yield, Servicing Compensation
and Payment of Expenses" in the Prospectus.
 
                       FEDERAL INCOME TAX CONSIDERATIONS
 
    The  following discussion represents the opinion of Cadwalader, Wickersham &
Taft as  to the  anticipated material  federal income  tax consequences  of  the
purchase, ownership and disposition of the Offered Certificates.
 
    An  election will be  made to treat  the Trust Estate,  and the Trust Estate
will qualify, as a REMIC for federal  income tax purposes. The Class A-1,  Class
A-2,  Class A-3, Class A-4 and Class A-5 Certificates, the Class AP Certificates
and  the  Class  M  Certificates  (collectively,  the  "Regular  Certificates"),
together  with the  Class B-1,  Class B-2,  Class B-3,  Class B-4  and Class B-5
Certificates, will be designated as the regular interests in the REMIC, and  the
Class  A-R Certificate will be designated as the residual interest in the REMIC.
The Class  A-R Certificate  is  a "Residual  Certificate"  for purposes  of  the
Prospectus.
 
    The Offered Certificates will be treated as "qualifying real property loans"
for  mutual savings banks and domestic  building and loan associations, "regular
or residual interests in a REMIC"  for domestic building and loan  associations,
and  "real  estate assets"  for  real estate  investment  trusts, to  the extent
described in the Prospectus.
 
REGULAR CERTIFICATES
 
    The Regular Certificates generally will be treated as newly originated  debt
instruments  for federal income tax purposes.  Beneficial Owners (or in the case
of Definitive  Certificates,  holders)  of  the  Regular  Certificates  will  be
required  to report income  on such Certificates in  accordance with the accrual
method of accounting.
 
    The Class AP Certificates will be issued with original issue discount in  an
amount  equal to the excess of the  initial principal balance thereof over their
respective issue  prices. It  is anticipated  that  the Class  A- and  Class  A-
Certificates  and the  Class M Certificates  will be issued  with original issue
discount in an amount equal to the  excess of the initial principal balances  of
such  Subclasses or Class over their  respective issue prices (including accrued
interest). It is further anticipated that the Class A- and Class A- Certificates
will be issued at a  premium and that the Class  A- Certificates will be  issued
with  DE MINIMIS original  issue discount for federal  income tax purposes. Each
Subclass of the Class B Certificates, which are not offered hereby, also will be
treated as issued with original issue discount for federal income tax purposes.
 
    The Prepayment Assumption  (as defined  in the Prospectus)  that the  Master
Servicer  intends to use  in determining the  rate of accrual  of original issue
discount will be calculated using     % SPA. No representation is made as to the
actual rate at which the Mortgage Loans will prepay.
 
RESIDUAL CERTIFICATE
 
    The holder of the Class A-R  Certificate must include the taxable income  or
loss  of the  REMIC in  determining its  federal taxable  income. The  Class A-R
Certificate will remain outstanding for federal
 
                                      S-79
<PAGE>
income tax  purposes  until  there  are  no  Certificates  of  any  other  Class
outstanding.   PROSPECTIVE   INVESTORS  ARE   CAUTIONED   THAT  THE   CLASS  A-R
CERTIFICATEHOLDER'S REMIC  TAXABLE  INCOME AND  THE  TAX LIABILITY  THEREON  MAY
EXCEED,  AND MAY SUBSTANTIALLY EXCEED, CASH  DISTRIBUTIONS TO SUCH HOLDER DURING
CERTAIN PERIODS,  IN  WHICH  EVENT,  THE HOLDER  THEREOF  MUST  HAVE  SUFFICIENT
ALTERNATIVE  SOURCES  OF FUNDS  TO PAY  SUCH TAX  LIABILITY. Furthermore,  it is
anticipated that all or a substantial portion of the taxable income of the REMIC
includible by the holder of the Class A-R Certificate will be treated as "excess
inclusion" income, resulting  in (i)  the inability of  such holder  to use  net
operating  losses  to offset  such income  from the  respective REMIC,  (ii) the
treatment of  such income  as  "unrelated business  taxable income"  to  certain
holders  who are otherwise tax-exempt, and (iii) the treatment of such income as
subject to 30% withholding tax to certain non-U.S. investors, with no  exemption
or treaty reduction.
 
    Under  the REMIC Regulations, because the fair market value of the Class A-R
Certificate will not exceed 2% of the  fair market value of the REMIC the  Class
A-R  Certificate will not have "significant value," and thrift institutions will
not be  permitted to  offset  their net  operating  losses against  such  excess
inclusion  income. In addition,  the Class A-R Certificate  will be considered a
"noneconomic residual interest," with the result that transfers thereof would be
disregarded for federal income  tax purposes if any  significant purpose of  the
transferor  was to impede the assessment  or collection of tax. Accordingly, the
transferee affidavit used for transfer of the Class A-R Certificate will require
the transferee to affirm  that it (i)  historically has paid  its debts as  they
have  come due and intends to do so  in the future, (ii) understands that it may
incur tax liabilities  with respect to  the Class A-R  Certificate in excess  of
cash flows generated thereby, (iii) intends to pay taxes associated with holding
the  Class A-R Certificate as  such taxes become due  and (iv) will not transfer
the Class  A-R Certificate  to any  person or  entity that  does not  provide  a
similar  affidavit. The transferor must certify  in writing to the Trustee that,
as of the date of the transfer, it  had no knowledge or reason to know that  the
affirmations  made by  the transferee  pursuant to  the preceding  sentence were
false. Additionally, the Class A-R Certificate generally may not be  transferred
to   certain  persons  who  are  not  U.S.  Persons  (as  defined  herein).  See
"Description of the Certificates  -- Restrictions on Transfer  of the Class  A-R
and Class M Certificates" herein and "Certain Federal Income Tax Consequences --
Federal  Income  Tax  Consequences  For  REMIC  Certificates,"  "--  Taxation of
Residual Certificates -- Limitations on Offset or Exemption of REMIC Income" and
"-- Tax-Related Restrictions on Transfer of Residual Certificates -- Noneconomic
Residual Interests" in the Prospectus.
 
    An individual, trust or estate that holds the Class A-R Certificate (whether
such Certificate is  held directly  or indirectly  through certain  pass-through
entities)  also may  have additional  gross income with  respect to,  but may be
subject to limitations on the deductibility  of, Servicing Fees on the  Mortgage
Loans  and other  administrative expenses  properly allocable  to the applicable
REMIC in computing such holder's regular tax  liability, and may not be able  to
deduct  such  fees  or  expenses  to  any  extent  in  computing  such  holder's
alternative minimum tax liability.  In addition, some  portion of a  purchaser's
basis,  if  any,  in  the  Class A-R  Certificate  may  not  be  recovered until
termination of  the  respective  REMIC.  Furthermore,  the  federal  income  tax
consequences  of any  consideration paid  to a transferee  on a  transfer of the
Class A-R  Certificate  are  unclear.  The preamble  to  the  REMIC  Regulations
indicates  that the Internal Revenue Service anticipates providing guidance with
respect to  the federal  tax  treatment of  such consideration.  Any  transferee
receiving consideration with respect to the Class A-R Certificate should consult
its tax advisors.
 
    DUE  TO  THE  SPECIAL TAX  TREATMENT  OF RESIDUAL  INTERESTS,  THE EFFECTIVE
AFTER-TAX RETURN OF THE  CLASS A-R CERTIFICATE MAY  BE SIGNIFICANTLY LOWER  THAN
WOULD  BE THE CASE IF THE CLASS A-R CERTIFICATE WERE TAXED AS A DEBT INSTRUMENT,
OR MAY BE NEGATIVE.
 
    See "Certain Federal Income Tax Consequences" in the Prospectus.
 
                                      S-80
<PAGE>
                              ERISA CONSIDERATIONS
 
    The Class A-R  Certificate may  not be purchased  by or  transferred to  any
person  which is an employee benefit plan  within the meaning of Section 3(3) of
the Employee Retirement Income Security Act  of 1974, as amended ("ERISA"),  and
which  is subject to  the fiduciary responsibility rules  of Sections 401-414 of
ERISA or Code Section 4975 (an "ERISA Plan") or which is a 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, with an ERISA Plan, a "Plan"), or
any person  utilizing  the  assets  of such  Plan.  Accordingly,  the  following
discussion  does not  purport to  discuss the  considerations under  ERISA, Code
Section 4975 or Similar Law with respect to the purchase, acquisition or  resale
of  the Class A-R Certificate  and for purposes of  the following discussion all
references to  the Offered  Certificates are  deemed to  exclude the  Class  A-R
Certificate.
 
    In  addition, under  current law  the purchase  and holding  of the  Class M
Certificates by or on behalf of  a Plan may result in "prohibited  transactions"
within  the meaning of ERISA  and Code Section 4975  or Similar Law. Transfer of
the Class M Certificates will not be  made unless the transferee (i) executes  a
representation  letter in form and substance satisfactory to the Trustee stating
that (a) it is not, and is not acting  on behalf of, any such Plan or using  the
assets  of any such  Plan to effect such  purchase or (b) if  it is an insurance
company, that the source of funds used  to purchase the Class M Certificates  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 (ii) provides an opinion of counsel in
form and substance satisfactory to the  Trustee that the purchase or holding  of
the  Class M Certificates  by or on behalf  of such Plan 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 and the Code or Similar Law and will
not subject the Seller, the Master Servicer, the Master Servicer or the  Trustee
to  any obligation in addition to those  undertaken in the Pooling and Servicing
Agreement. The  Class  M Certificates  will  contain a  legend  describing  such
restrictions  on transfer and  the Pooling and  Servicing Agreement will provide
that any  attempted  or  purported  transfer  in  violation  of  these  transfer
restrictions  will be  null and void  and will  vest no rights  in any purported
transferee. Accordingly, the  following discussion does  not purport to  discuss
the considerations under ERISA, Code Section 4975 or Similar Law with respect to
the purchase, acquisition or resale of the Class M Certificates and for purposes
of  the  following discussion  all references  to  the Offered  Certificates are
deemed to exclude the Class M Certificates.
 
    As described in the Prospectus  under "ERISA Considerations," ERISA and  the
Code  impose certain duties and restrictions  on ERISA Plans and certain persons
who perform  services for  ERISA Plan.  Comparable duties  and restrictions  may
exist  under Similar Law  on governmental plans and  certain persons who perform
services for governmental plans. For example, unless exempted, investment by  an
ERISA  Plan in the Offered Certificates  may constitute a prohibited transaction
under ERISA, the Code or Similar Law. There are certain exemptions issued by the
United States  Department of  Labor (the  "DOL") that  may be  applicable to  an
investment  by  an  ERISA  Plan  in  the  Offered  Certificates,  including  the
individual administrative exemption described  below and Prohibited  Transaction
Class  Exemption 83-1 ("PTE  83-1"). For a further  discussion of the individual
administrative exemption and  PTE 83-1,  including the  necessary conditions  to
their  applicability, and other  important factors to be  considered by an ERISA
Plan  contemplating   investing  in   the  Offered   Certificates,  see   "ERISA
Considerations" in the Prospectus.
 
    [On                   ,  the DOL  issued  to the  Underwriter  an individual
administrative exemption, Prohibited Transaction Exemption            ,     Fed.
Reg.         (the "Exemption"), from
 
                                      S-81
<PAGE>
certain of the prohibited transaction rules of ERISA with respect to the initial
purchase, the holding and the subsequent resale by an ERISA Plan of certificates
in  pass-through  trusts  that  meet  the  conditions  and  requirements  of the
Exemption. The Exemption might apply to  the acquisition, holding and resale  of
the  Offered Certificates,  other than  the Class  A-R Certificate,  by an ERISA
Plan, provided that specified conditions are met.
 
    Among the conditions which would have  to be satisfied for the Exemption  to
apply  to the acquisition  by an ERISA  Plan of the  Offered Certificates is the
condition that  the ERISA  Plan  investing in  the  Offered Certificates  be  an
"accredited  investor"  as defined  in  Rule 501(a)(1)  of  Regulation D  of the
Securities and Exchange Commission under the Securities Act of 1933, as  amended
(the "Securities Act").]
 
    Before  purchasing  an Offered  Certificate, a  fiduciary  of an  ERISA Plan
should make  its own  determination as  to the  [availability of  the  exemptive
relief  provided in the Exemption or the] availability of any [other] prohibited
transaction exemptions (including PTE 83-1),  and whether the conditions of  any
such exemption will be applicable to the Offered Certificates and a fiduciary of
a  governmental plan should  make its own  determination as to  the need for and
availability of any  exemptive relief  under Similar  Law. Any  fiduciary of  an
ERISA  Plan considering whether  to purchase an  Offered Certificate should also
carefully review with its own legal advisors the applicability of the  fiduciary
duty and prohibited transaction provisions of ERISA, the Code and Similar Law to
such investment. See "ERISA Considerations" in the Prospectus.
 
                                LEGAL INVESTMENT
 
    [The  Offered  Certificates  constitute  "mortgage  related  securities" for
purposes  of  the  Secondary  Mortgage  Market  Enhancement  Act  of  1984  (the
"Enhancement  Act") so long as  they are rated in one  of the two highest rating
categories  by   at  least   one   nationally  recognized   statistical   rating
organization.  As  such,  the  Offered Certificates  are  legal  investments for
certain entities  to  the  extent  provided in  the  Enhancement  Act.  However,
institutions subject to the jurisdiction of the Office of the Comptroller of the
Currency,  the Board  of Governors  of the  Federal Reserve  System, the Federal
Deposit Insurance Corporation,  the Office of  Thrift Supervision, the  National
Credit  Union Administration  or state  banking or  insurance authorities should
review applicable rules, supervisory policies  and guidelines of these  agencies
before  purchasing any of the Offered Certificates, as certain Subclasses of the
Class A Certificates or the Class M Certificates may be deemed to be  unsuitable
investments  under  one or  more  of these  rules,  policies and  guidelines and
whether certain restrictions may apply to investments in other Subclasses of the
Class A Certificates or the Class M  Certificates. It should also be noted  that
certain  states recently  have enacted,  or have  proposed enacting, legislation
limiting to  varying extents  the  ability of  certain entities  (in  particular
insurance  companies) to  invest in  mortgage related  securities.] [The Offered
Certificates  will  not  constitute  "mortgage  related  securities"  under  the
Secondary  Mortgage Market Enhancement Act of  1984 (the "Enhancement Act"). The
appropriate characterization  of the  Offered Certificates  under various  legal
investment  restrictions, and  thus the  ability of  investors subject  to these
restrictions to purchase  Offered Certificates,  may be  subject to  significant
interpretive  uncertainties. All investors whose investment authority is subject
to legal  restrictions should  consult their  own legal  advisors to  determine,
whether,  and to  what extent,  the Offered  Certificates will  constitute legal
investments for them.] Investors should consult with their own legal advisors in
determining whether and  to what  extent Offered  Certificates constitute  legal
investments for such investors. See "Legal Investment" in the Prospectus.
 
                                SECONDARY MARKET
 
    There  will not  be any  market for  the Offered  Certificates prior  to the
issuance thereof.  The Underwriter  intends to  act  as a  market maker  in  the
Offered  Certificates,  subject to  applicable provisions  of federal  and state
securities laws and other regulatory requirements, but is under no obligation to
do so.  There  can be  no  assurance that  a  secondary market  in  the  Offered
Certificates  will  develop or,  if such  a  market does  develop, that  it will
provide holders of Offered Certificates with
 
                                      S-82
<PAGE>
liquidity of investment at any  particular time or for  the life of the  Offered
Certificates.  As a  source of information  concerning the  Certificates and the
Mortgage Loans, prospective investors in  Certificates may obtain copies of  the
reports  included in  monthly statements  to Certificateholders  described under
"Description of Certificates -- Reports" upon written request to the Trustee  at
the Corporate Trust Office.
 
                                  UNDERWRITING
 
    Subject  to the terms and conditions  of the underwriting agreement dated as
of            , 199  (the "Underwriting Agreement") among Norwest Mortgage,  the
Seller  and  [Underwriter],  as  underwriter  (the  "Underwriter"),  the Offered
Certificates  offered  hereby  are  being  purchased  from  the  Seller  by  the
Underwriter  upon issuance. The Underwriter is  committed to purchase all of the
Offered Certificates if any Offered Certificates are purchased. The  Underwriter
has  advised the Seller that it proposes to offer the Offered Certificates, from
time to  time,  for sale  in  negotiated  transactions or  otherwise  at  prices
determined  at the  time of sale.  Proceeds to the  Seller from the  sale of the
Offered Certificates are  expected to  be approximately       %  of the  initial
aggregate  principal balance of the  Class A, Class AP  and Class M Certificates
plus accrued interest  thereon, other  than on an  amount equal  to the  initial
aggregate  principal balance of the Class AP Certificates, from           1, 199
to (but not including)             , 199 , before deducting expenses payable  by
the  Seller.  The Underwriter,  which is  not  an affiliate  of the  Seller, has
advised the Seller  that the Underwriter  has not allocated  the purchase  price
paid  to the Seller for the  Class A, Class AP and  Class M Certificates has not
been allocated among the Class  A, Class AP and  Class M Certificates nor  among
the  Subclasses of  Class A Certificates.  The Underwriter and  any dealers that
participate with the Underwriter in the distribution of the Offered Certificates
may be deemed to be underwriters,  and any discounts or commissions received  by
them  and any profit on the resale of Offered Certificates by them may be deemed
to be underwriting discounts or commissions, under the Securities Act.
 
    The Underwriting Agreement provides that the Seller or Norwest Mortgage will
indemnify the Underwriter against certain civil liabilities under the Securities
Act or contribute to payments which the  Underwriter may be required to make  in
respect thereof.
 
                                 LEGAL MATTERS
 
    The  validity  of  the Offered  Certificates  and certain  tax  matters with
respect thereto will be passed upon  for the Seller by Cadwalader, Wickersham  &
Taft,  New York,  New York. Certain  legal matters  will be passed  upon for the
Underwriter by           ,           .
 
[FOR SERIES WITH A FINANCIAL GUARANTY INSURANCE POLICY:
 
                                    EXPERTS
 
    The consolidated balance  sheets of  Financial Security  Assurance Inc.  and
Subsidiaries  as of  December 31,  1995 and December  31, 1994,  and the related
consolidated statements of  income, changes  in shareholder's  equity, and  cash
flows  for  each of  the  three years  in the  period  ended December  31, 1995,
incorporated by reference in this  Prospectus Supplement have been  incorporated
herein,  in  reliance on  the report  of Coopers  & Lybrand  L.L.P., independent
accountants, given on  the authority  of that firm  as experts  in auditing  and
accounting.]
 
                                USE OF PROCEEDS
 
    The  net proceeds to be  received from the sale  of the Offered Certificates
will be applied  by the  Seller to  the purchase  from Norwest  Mortgage of  the
Mortgage Loans underlying the Series 199 - ] Certificates.
 
                                      S-83
<PAGE>
                                    RATINGS
 
    It  is a condition to the issuance of  the Class A and Class AP Certificates
that they  will have  been  rated [["Aaa"  by  Moody's Investors  Service,  Inc.
("Moody's")]  ["AAA" by [Fitch Investors Service, L.P. ("Fitch")] [Duff & Phelps
Credit Rating  Co. ("DCR")]]  [and] ["AAA"  and "AAAr"  by Standard  and  Poor's
("S&P")]]  and [["Aa"  by Moody's]  ["AA" by  [Fitch] [DCR]  [S&P]] [and]["A" by
[Moody's] [Fitch] [DCR] [S&P]] [and] [["Baa" by Moody's] ["BBB" by [Fitch] [DCR]
[S&P]. A security rating is not a recommendation to buy, sell or hold securities
and may be subject to revision or withdrawal at any time by the assigning rating
agency. Each  security rating  should be  evaluated independently  of any  other
security rating.
 
    [The  ratings of Moody's  on mortgage pass-through  certificates address the
likelihood of the receipt  by certificateholders of  all distributions to  which
such  certificateholders  are  entitled.  Moody's  rating  opinions  address the
structural, legal and issuer aspects associated with the certificates, including
the nature of the underlying mortgage loans and the credit quality of the credit
support provider, if any.  Moody's ratings on  pass-through certificates do  not
represent any assessment of the likelihood that principal prepayments may differ
from those originally anticipated.]
 
    [The  ratings assigned by DCR  to mortgage pass-through certificates address
the likelihood  of the  receipt by  certificateholders of  all distributions  to
which  they are entitled under the  transaction structure. DCR's ratings reflect
its analysis of  the riskiness of  the mortgage  loans and its  analysis of  the
structure  of the  transaction as  set forth  in the  operative documents. DCR's
ratings do not  address the effect  on the certificates'  yield attributable  to
prepayments  or recoveries  on the underlying  mortgage loans.  In addition, the
rating of the Class A-R Certificate does not assess the likelihood of return  to
the  investor in the Class A-R Certificate, except  to the extent of the Class A
Subclass Principal Balance thereof and interest thereon.]
 
    [The ratings  of  S&P  on mortgage  pass-through  certificates  address  the
likelihood  of the receipt by certificateholders  of timely payments of interest
and the ultimate return  of principal. S&P ratings  take into consideration  the
credit  quality of  the mortgage pool,  including any  credit support providers,
structural and legal aspects associated with the certificates, and the extent to
which the  payment stream  on the  mortgage pool  is adequate  to make  payments
required  under the  certificates. S&P's  ratings on  such certificates  do not,
however, constitute  a  statement  regarding frequency  of  prepayments  on  the
mortgage loans. S&P's rating does not address the possibility that investors may
suffer  a  lower  than anticipated  yield  as  a result  of  prepayments  of the
underlying mortgages. In addition, it should be noted that in some structures  a
default on a mortgage is treated as a prepayment and may have the same effect on
yield as a prepayment.]
 
    [The  ratings  of Fitch  on mortgage  pass-through certificates  address the
likelihood of the receipt  by certificateholders of  all distributions to  which
such  certificateholders  are  entitled.  Fitch's  rating  opinions  address the
structural and legal  aspects associated  with the  certificates, including  the
nature  of  the  underlying  mortgage  loans.  Fitch's  ratings  on pass-through
certificates do  not represent  any  assessment of  the  likelihood or  rate  of
principal  prepayments and  consequently any adverse  effect the  timing of such
prepayments could have on an investor's anticipated yield.]
 
    The Seller has  not requested a  rating on the  Offered Certificates of  any
Subclass  or Class  by any  rating agency other  than [Moody's]  [DCR] [S&P] and
[Fitch], although data with respect to the Mortgage Loans may have been provided
to other rating agencies solely for  their informational purposes. There can  be
no  assurance that any rating assigned by any other rating agency to the Offered
Certificates will be  as high  as those assigned  by [Moody's]  [DCR] [S&P]  and
[Fitch].
 
                                      S-84
<PAGE>
                              INDEX OF SIGNIFICANT
                       PROSPECTUS SUPPLEMENT DEFINITIONS
 
<TABLE>
<CAPTION>
TERM                                                                                                         PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
<S>                                                                                                        <C>
Adjusted Pool Amount.....................................................................................  S-32
Adjusted Pool Amount (Class AP Portion)..................................................................  S-33
Adjustment Amount........................................................................................  S-54
Aggregate Current Bankruptcy Losses......................................................................  S-55
Aggregate Current Fraud Losses...........................................................................  S-54
Aggregate Current Special Hazard Losses..................................................................  S-54
Bankruptcy Loss..........................................................................................  S-37
Bankruptcy Loss Amount...................................................................................  S-55
Beneficial Owner.........................................................................................  S-28
Book-Entry Certificates..................................................................................  S-3
Bulk Purchase Underwritten Loans.........................................................................  S-13
CBE......................................................................................................  S-74
Cede.....................................................................................................  S-28
Certificateholder........................................................................................  S-3
Certificates.............................................................................................  S-7
CGC......................................................................................................  S-49
CGIC.....................................................................................................  S-49
Class A Certificates.....................................................................................  Cover
Class A Distribution Amount..............................................................................  S-31
Class A Optimal Amount...................................................................................  S-34
Class A Optimal Principal Amount.........................................................................  S-35
Class A Percentage.......................................................................................  S-37
Class A Prepayment Percentage............................................................................  S-37
Class A Principal Balance................................................................................  S-32
Class A Principal Distribution Amount....................................................................  S-35
Class A Subclass Interest Accrual Amount.................................................................  S-31
Class A Subclass Interest Shortfall Amount...............................................................  S-34
Class A Subclass Principal Balance.......................................................................  S-31
Class A Voting Interest..................................................................................  S-75
Class AP Certificates....................................................................................  Cover
Class AP Deferred Amount.................................................................................  S-39
Class AP Fraction........................................................................................  S-39
Class AP Optimal Principal Amount........................................................................  S-38
Class AP Principal Balance...............................................................................  S-32
Class AP Principal Distribution Amount...................................................................  S-38
Class B Certificates.....................................................................................  Cover
Class B Principal Balance................................................................................  S-32
Class B Subclass Interest Accrual Amount.................................................................  S-31
Class B Subclass Principal Balance.......................................................................  S-32
Class M Certificates.....................................................................................  Cover
Class M Distribution Amount..............................................................................  S-31
Class M Interest Accrual Amount..........................................................................  S-31
Class M Interest Shortfall Amount........................................................................  S-34
Class M Optimal Amount...................................................................................  S-35
Class M Optimal Principal Amount.........................................................................  S-39
Class M Percentage.......................................................................................  S-40
Class M Prepayment Percentage............................................................................  S-40
Class M Principal Balance................................................................................  S-32
Class M Principal Distribution Amount....................................................................  S-39
</TABLE>
 
                                      S-85
<PAGE>
<TABLE>
<CAPTION>
TERM                                                                                                         PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
<S>                                                                                                        <C>
Classes A/M/B Fraction...................................................................................  S-36
Classes A/M/B Voting Interest............................................................................  S-75
Closing Date.............................................................................................  S-12
Co-op Shares.............................................................................................  S-56
Code.....................................................................................................  S-25
Companion Certificates...................................................................................  Cover
Cooperatives.............................................................................................  S-56
Correspondent............................................................................................  S-2
Cross-Over Date..........................................................................................  S-52
Current Class B-1 Fractional Interest....................................................................  S-41
Current Class B-2 Fractional Interest....................................................................  S-42
Current Class B-3 Fractional Interest....................................................................  S-42
Current Class B-4 Fractional Interest....................................................................  S-42
Current Class M Fractional Interest......................................................................  S-41
Cut-Off Date Aggregate Principal Balance.................................................................  S-56
DCR......................................................................................................  S-8
Debt Service Reduction...................................................................................  S-37
Deficient Valuation......................................................................................  S-37
Definitive Certificates..................................................................................  S-10
Determination Date.......................................................................................  S-29
Discount Mortgage Loans..................................................................................  S-3
Distribution Date........................................................................................  S-2
DOL......................................................................................................  S-81
DTC......................................................................................................  S-10
Enhancement Act..........................................................................................  S-26
ERISA....................................................................................................  S-25
ERISA Plan...............................................................................................  S-81
Excess Bankruptcy Losses.................................................................................  S-55
Excess Fraud Losses......................................................................................  S-54
Excess Principal Payment.................................................................................  S-44
Excess Special Hazard Loss...............................................................................  S-54
Exchange Act.............................................................................................  S-50
Exemption................................................................................................  S-81
Financial Security.......................................................................................  S-48
Fitch....................................................................................................  S-8
Fixed Non-relocation Program Loans.......................................................................  S-63
Fixed Program Loans......................................................................................  S-63
Fixed Retained Yield.....................................................................................  S-78
Fraud Loss...............................................................................................  S-37
Fraud Loss Amount........................................................................................  S-54
Fund American............................................................................................  S-48
GEMICO...................................................................................................  S-13
Holdings.................................................................................................  S-48
Liquidated Loan..........................................................................................  S-36
Liquidated Loan Loss.....................................................................................  S-36
Master Servicer..........................................................................................  S-2
Master Servicing Fee.....................................................................................  S-76
Master Servicing Fee Rate................................................................................  S-76
Moody's..................................................................................................  S-8
Mortgage Loans...........................................................................................  S-2
Mortgaged Properties.....................................................................................  S-56
</TABLE>
 
                                      S-86
<PAGE>
<TABLE>
<CAPTION>
TERM                                                                                                         PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
<S>                                                                                                        <C>
Mortgages................................................................................................  S-56
NASCOR...................................................................................................  S-2
Net Foreclosure Profits..................................................................................  S-47
Net Mortgage Interest Rate...............................................................................  S-33
Net Partial Liquidation Proceeds.........................................................................  S-36
Non-Supported Interest Shortfalls........................................................................  S-16
Norwest Bank.............................................................................................  S-2
Norwest Mortgage.........................................................................................  S-2
Norwest Mortgage Underwritten Loans......................................................................  S-13
Offered Certificates.....................................................................................  Cover
Original Class B-1 Fractional Interest...................................................................  S-41
Original Class B-2 Fractional Interest...................................................................  S-42
Original Class B-3 Fractional Interest...................................................................  S-42
Original Class B-4 Fractional Interest...................................................................  S-42
Original Class M Fractional Interest.....................................................................  S-41
Original Subordinated Principal Balance..................................................................  S-37
Other Servicers..........................................................................................  S-77
PAC Certificates.........................................................................................  Cover
PAC Principal Amount.....................................................................................  S-42
Partial Liquidation Proceeds.............................................................................  S-36
Pass-Through Rate........................................................................................  S-15
Percentage Interest......................................................................................  S-31
Periodic Advance.........................................................................................  S-48
Plan.....................................................................................................  S-25
Pool Balance (Class AP Portion)..........................................................................  S-19
Pool Balance (Classes A/M/B Portion).....................................................................  S-19
Pool Certification Underwritten Loans....................................................................  S-13
Pool Distribution Amount.................................................................................  S-29
Pool Distribution Amount Allocation......................................................................  S-30
Pooling and Servicing Agreement..........................................................................  S-74
Prepayment Interest Shortfalls...........................................................................  S-33
Program Loans............................................................................................  S-63
Prospectus...............................................................................................  S-7
PTE 83-1.................................................................................................  S-81
PTE 95-60................................................................................................  S-81
Realized Losses..........................................................................................  S-37
Record Date..............................................................................................  S-29
Regular Certificates.....................................................................................  S-79
Relocation Mortgage Loans................................................................................  S-63
REMIC....................................................................................................  S-4
Remittance Date..........................................................................................  S-30
REO Property.............................................................................................  S-76
Residual Certificate.....................................................................................  S-79
S&P......................................................................................................  S-8
Scheduled Principal Balance..............................................................................  S-36
Securities Act...........................................................................................  S-82
Seller...................................................................................................  S-2
Senior Certificates......................................................................................  Cover
Senior Optimal Amount....................................................................................  S-34
Series 199 - Certificates................................................................................  Cover
Servicer.................................................................................................  S-2
</TABLE>
 
                                      S-87
<PAGE>
<TABLE>
<CAPTION>
TERM                                                                                                         PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
<S>                                                                                                        <C>
Servicer Custodial Account...............................................................................  S-77
Servicers................................................................................................  S-77
Servicing Fee Rate.......................................................................................  S-78
Similar Law..............................................................................................  S-25
SPA......................................................................................................  S-71
Special Hazard Loss......................................................................................  S-36
Special Hazard Loss Amount...............................................................................  S-54
Subclass.................................................................................................  Cover
Subordinated Certificates................................................................................  Cover
Subordinated Percentage..................................................................................  S-38
Subordinated Prepayment Percentage.......................................................................  S-38
Subsidy Account..........................................................................................  S-57
Subsidy Loan.............................................................................................  S-57
TAC Certificates.........................................................................................  Cover
TAC Principal Amount.....................................................................................  S-42
Tokio Marine.............................................................................................  S-48
Trust Estate.............................................................................................  S-2
Trustee..................................................................................................  S-8
Trustee Fee..............................................................................................  S-76
Trustee Fee Rate.........................................................................................  S-76
U.S. Person..............................................................................................  S-50
UGRIC....................................................................................................  S-13
Underlying Servicing Agreement...........................................................................  S-7
Underwriter..............................................................................................  Cover
Underwriting Agreement...................................................................................  S-83
US WEST..................................................................................................  S-48
</TABLE>
 
                                      S-88
<PAGE>
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR  TO THE TIME THE REGISTRATION STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE AN  OFFER  TO  SELL  OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN  ANY STATE IN WHICH SUCH OFFER,  SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
             PROSPECTUS, SUBJECT TO COMPLETION, DATED MAY 15, 1996
                      NORWEST ASSET SECURITIES CORPORATION
                                     SELLER
 
                       MORTGAGE PASS-THROUGH CERTIFICATES
                              (ISSUABLE IN SERIES)
                             ---------------------
 
    Norwest Asset Securities  Corporation (the  "Seller" or  "NASCOR") may  sell
from  time to time, under this Prospectus and applicable Prospectus Supplements,
Mortgage Pass-Through  Certificates  (the "Certificates"),  issuable  in  series
(each,  a  "Series") consisting  of one  or  more classes  (each, a  "Class") of
Certificates. Any  Class  of  Certificates  may be  divided  into  two  or  more
subclasses (each, a "Subclass").
 
    The  Certificates of a Series  will represent beneficial ownership interests
in a separate trust formed by the  Seller. The property of each such trust  (for
each  Series,  the  "Trust Estate")  will  be  comprised primarily  of  fixed or
adjustable interest  rate, conventional,  first  mortgage loans  (the  "Mortgage
Loans"),  secured by  one- to  four-family residential  properties. The Mortgage
Loans will  have  been  acquired  by the  Seller  from  its  affiliate,  Norwest
Mortgage,  Inc. ("Norwest Mortgage"), and will  have been underwritten either to
Norwest Mortgage's underwriting  standards, to the  underwriting standards of  a
Pool  Insurer (as defined herein) or to such other standards as are described in
the applicable Prospectus Supplement. All of the Mortgage Loans will be serviced
by Norwest Mortgage individually  or together with one  or more other  servicers
(each,  a "Servicer").  Norwest Bank  Minnesota, National  Association ("Norwest
Bank"), an  affiliate of  Norwest Mortgage,  will act  as master  servicer  with
respect to each Trust Estate (in such capacity, the "Master Servicer").
 
    Each  Series of Certificates may include one or more Classes of Certificates
(the "Subordinated Certificates") that are subordinate in right of distributions
or otherwise to one  or more of  the other Classes of  such Series (the  "Senior
Certificates").  If  specified  in  the  applicable  Prospectus  Supplement, the
relative interests of the Senior Certificates and the Subordinated  Certificates
of  a Series in the Trust Estate may  be subject to adjustment from time to time
on the basis of distributions received  in respect thereof and losses  allocated
to  the  Subordinated  Certificates.  If  and to  the  extent  specified  in the
Prospectus Supplement,  credit  support  may  be  provided  for  any  Series  of
Certificates,  or any Classes  or Subclasses thereof,  in the form  of a limited
guarantee, financial guaranty insurance policy,  surety bond, letter of  credit,
mortgage  pool insurance  policy, reserve fund,  cross-support or  other form of
credit enhancement as described herein or therein.
 
    Except for  the  Seller's limited  obligations  in connection  with  certain
breaches  of  its  representations  and  warranties,  certain  undertakings  and
obligations of  the  Master  Servicer  and  Norwest  Mortgage's  obligations  as
Servicer,  neither the Seller, the Master Servicer nor Norwest Mortgage, nor any
affiliate of the Seller, the Master Servicer or Norwest Mortgage, will have  any
obligations with respect to the Certificates.
 
    If  specified in the  applicable Prospectus Supplement,  an election will be
made to  treat the  Trust Estate  (or one  or more  segregated pools  of  assets
therein)  underlying  a  Series  of  Certificates  as  a  "real  estate mortgage
investment conduit" (a "REMIC")  for federal income  tax purposes. See  "Certain
Federal Income Tax Consequences."
 
    There  will have been  no public market  for the Certificates  of any Series
prior to the offering thereof. No assurance can be given that such a market will
develop,  or   that  if   such  a   market  does   develop,  it   will   provide
Certificateholders with liquidity of investment or will continue for the life of
the Certificates.
                            ------------------------
 
THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED  UPON
      THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO
            THE                  CONTRARY IS A CRIMINAL OFFENSE.
                            ------------------------
 
    The Certificates may be sold from time to time through one or more different
methods,  including through underwriting syndicates led  by one or more managing
underwriters or through  one or  more underwriters  acting alone.  See "Plan  of
Distribution."  Affiliates of the Seller may from  time to time act as agents or
underwriters in connection with the sale of the Certificates.
 
    This Prospectus may not be used  to consummate sales of Certificates  unless
accompanied  by  the  Prospectus Supplement  relating  to the  offering  of such
Certificates.
                            ------------------------
 
                 THE DATE OF THIS PROSPECTUS IS           , 199
<PAGE>
                                    REPORTS
 
    The Master Servicer  will prepare,  and the  Trustee or  other Paying  Agent
appointed   for  each  Series  by  the  Master  Servicer  will  forward  to  the
Certificateholders of each Series statements containing information with respect
to principal and interest  payments and the related  Trust Estate, as  described
herein  and  in  the  applicable  Prospectus  Supplement  for  such  Series.  No
information contained in such reports will  have been examined or reported  upon
by an independent public accountant. See "The Pooling and Servicing Agreement --
Reports  to Certificateholders." In addition, each Servicer for each Series will
furnish to the Master Servicer (who will be required to furnish promptly to  the
Trustee  for  such  Series),  a  statement from  a  firm  of  independent public
accountants with respect  to the  examination of certain  documents and  records
relating to a random sample of mortgage loans serviced by such Servicer pursuant
to  the related Underlying Servicing  Agreement and/or other similar agreements.
See "Servicing of the  Mortgage Loans -- Evidence  as to Compliance." Copies  of
the  statements provided by the Master Servicer to the Trustee will be furnished
to Certificateholders of each Series upon  request addressed to the Trustee  for
the  applicable Series  or to  the Master  Servicer c/o  Norwest Bank Minnesota,
National Association, 11000 Broken Land Parkway, Columbia, Maryland  21044-3562,
Attention: Securities Administration Services Manager.
 
                             ADDITIONAL INFORMATION
 
    This  Prospectus contains, and the Prospectus  Supplement for each Series of
Certificates will contain,  a summary  of the  material terms  of the  documents
referred to herein and therein, but neither contains nor will contain all of the
information  set forth in the Registration Statement of which this Prospectus is
a part.  For  further  information,  reference  is  made  to  such  Registration
Statement  and  the  exhibits  thereto  which  the  Seller  has  filed  with the
Securities and Exchange Commission  (the "Commission"), Washington, D.C.,  under
the  Securities  Act  of 1933,  as  amended (the  "Securities  Act"). Statements
contained in this Prospectus and any Prospectus Supplement as to the contents of
any contract or other document referred to are summaries and, in each  instance,
reference  is made  to the copy  of the contract  or other document  filed as an
exhibit to the Registration  Statement, each such  statement being qualified  in
all  respects by  such reference.  Copies of  the Registration  Statement may be
obtained from the Public Reference  Section of the Commission, Washington,  D.C.
20549  upon payment of the prescribed charges, or may be examined free of charge
at the Commission's offices, 450 Fifth Street N.W., Washington, D.C. 20549 or at
the regional offices of the Commission located at Room 1400, 75 Park Place,  New
York,  New York 10007 and 14th Floor, 500 West Madison Street, Chicago, Illinois
60661. Copies of any documents incorporated herein by reference will be provided
to each person to whom  a Prospectus is delivered  upon written or oral  request
directed   to  Norwest  Asset  Securities   Corporation,  5325  Spectrum  Drive,
Frederick, Maryland 21701, telephone number (301) 846-8881.
 
                        ADDITIONAL DETAILED INFORMATION
 
    The  Seller  intends  to  offer  by  subscription  detailed  mortgage   loan
information in machine readable format updated on a monthly basis (the "Detailed
Information")  with  respect to  each  outstanding Series  of  Certificates. The
Detailed Information  will  reflect payments  made  on the  individual  mortgage
loans, including prepayments in full and in part made on such mortgage loans, as
well  as the liquidation of  any such mortgage loans,  and will identify various
characteristics of the mortgage loans.  Subscribers of the Detailed  Information
are  expected to include a number of major investment brokerage firms as well as
financial information  service  firms. Some  of  such firms,  including  certain
investment   brokerage  firms  as  well  as  Bloomberg  L.P.  through  the  "The
Bloomberg-Registered Trademark-" service and Merrill Lynch Mortgage Capital Inc.
through the "CMO  Passport -Registered Trademark-"  service, may, in  accordance
with  their  individual  business  practices and  fee  schedules,  if  any, make
portions of, or summaries of portions of, the Detailed Information available  to
their  customers  and subscribers.  The Seller,  the  Master Servicer  and their
respective affiliates have no  control over and take  no responsibility for  the
actions   of  such  firms   in  processing,  analyzing   or  disseminating  such
information. For  further information  regarding  the Detailed  Information  and
subscriptions thereto, please contact Norwest Asset Securities Corporation, 5325
Spectrum Drive, Frederick, Maryland 21701, telephone number (301) 846-8881.
 
                                       2
<PAGE>
               INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
 
    There  are incorporated herein by reference  all documents and reports filed
or caused to  be filed  by NASCOR  with respect to  a Trust  Estate pursuant  to
Section  13(a), 13(c), 14 or 15(d) of the Exchange Act, prior to the termination
of an offering of Certificates  evidencing interests therein. Upon request,  the
Master  Servicer will  provide or  cause to be  provided without  charge to each
person to whom this Prospectus is  delivered in connection with the offering  of
one  or more Classes of Certificates a list identifying all filings with respect
to a Trust Estate pursuant to Section 13(a), 13(c), 14 or 15(d) of the  Exchange
Act  since NASCOR's latest fiscal year covered by its annual report on Form 10-K
and a copy of any or all documents or reports incorporated herein by  reference,
in  each case to the extent  such documents or reports relate  to one or more of
such Classes of  such Certificates, other  than the exhibits  to such  documents
(unless  such  exhibits  are  specifically  incorporated  by  reference  in such
documents). Requests to the Master Servicer should be directed to: Norwest Asset
Securities  Corporation,  5325  Spectrum   Drive,  Frederick,  Maryland   21701,
telephone number (301) 846-8881.
 
                                       3
<PAGE>
                               TABLE OF CONTENTS
                                   PROSPECTUS
 
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
Reports....................................................................................................          2
Additional Information.....................................................................................          2
Additional Detailed Information............................................................................          2
Incorporation of Certain Information by Reference..........................................................          3
Summary of Prospectus......................................................................................          8
  Title of Securities......................................................................................          8
  Seller...................................................................................................          8
  Servicers................................................................................................          8
  Master Servicer..........................................................................................          8
  The Trust Estates........................................................................................          8
  Description of the Certificates..........................................................................          9
  Distributions on the Certificates........................................................................          9
  Cut-Off Date.............................................................................................          9
  Distribution Dates.......................................................................................          9
  Record Dates.............................................................................................         10
  Credit Enhancement.......................................................................................         10
  Periodic Advances........................................................................................         10
  Forms of Certificates....................................................................................         11
  Optional Purchase of Defaulted Mortgage Loans............................................................         11
  Optional Purchase of All Mortgage Loans..................................................................         11
  ERISA Limitations........................................................................................         11
  Tax Status...............................................................................................         12
  Legal Investment.........................................................................................         12
  Rating...................................................................................................         12
Risk Factors...............................................................................................         13
  Limited Liquidity........................................................................................         13
  Limited Obligations......................................................................................         13
  Limitations, Reduction and Substitution of Credit Enhancement............................................         13
  Risks of the Mortgage Loans..............................................................................         14
  Yield and Prepayment Considerations......................................................................         14
  Book-Entry System for Certain Classes and Subclasses of Certificates.....................................         15
The Trust Estates..........................................................................................         15
  General..................................................................................................         15
  Mortgage Loans...........................................................................................         15
    Fixed Rate Loans.......................................................................................         16
    Adjustable Rate Loans..................................................................................         17
    Graduated Payment Loans................................................................................         17
    Subsidy Loans..........................................................................................         17
    Buy-Down Loans.........................................................................................         18
    Balloon Loans..........................................................................................         19
The Seller.................................................................................................         19
Norwest Mortgage...........................................................................................         19
Norwest Bank...............................................................................................         20
The Mortgage Loan Programs.................................................................................         20
Mortgage Loan Production Sources...........................................................................         20
  Acquisition of Mortgage Loans from Correspondents........................................................         21
  Mortgage Loan Underwriting...............................................................................         22
  Norwest Mortgage Underwriting............................................................................         22
</TABLE>
 
                                       4
<PAGE>
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
  Pool Certification Underwriting..........................................................................         25
  Representations and Warranties...........................................................................         27
Description of the Certificates............................................................................         30
  General..................................................................................................         30
  Definitive Form..........................................................................................         31
  Book-Entry Form..........................................................................................         32
  Distributions to Certificateholders......................................................................         34
    General................................................................................................         34
    Distributions of Interest..............................................................................         35
    Distributions of Principal.............................................................................         36
  Other Credit Enhancement.................................................................................         37
    Limited Guarantee......................................................................................         37
    Financial Guaranty Insurance Policy or Surety Bond.....................................................         38
    Letter of Credit.......................................................................................         38
    Pool Insurance Policies................................................................................         38
    Special Hazard Insurance Policies......................................................................         38
    Mortgagor Bankruptcy Bond..............................................................................         38
    Reserve Fund...........................................................................................         38
    Cross Support..........................................................................................         39
Prepayment and Yield Considerations........................................................................         39
  Pass-Through Rates.......................................................................................         39
  Scheduled Delays in Distributions........................................................................         39
  Effect of Principal Prepayments..........................................................................         39
  Weighted Average Life of Certificates....................................................................         40
Servicing of the Mortgage Loans............................................................................         41
  The Master Servicer......................................................................................         42
  The Servicers............................................................................................         43
  Payments on Mortgage Loans...............................................................................         43
  Periodic Advances and Limitations Thereon................................................................         46
  Adjustment to Servicing Fee in Connection with Prepaid Mortgage Loans....................................         47
  Collection and Other Servicing Procedures................................................................         47
  Enforcement of Due-on-Sale Clauses; Realization Upon Defaulted Mortgage Loans............................         48
  Insurance Policies.......................................................................................         50
  Fixed Retained Yield, Servicing Compensation and Payment of Expenses.....................................         51
  Evidence as to Compliance................................................................................         52
Certain Matters Regarding the Master Servicer..............................................................         52
The Pooling and Servicing Agreement........................................................................         53
  Assignment of Mortgage Loans to the Trustee..............................................................         53
  Optional Purchases.......................................................................................         55
  Reports to Certificateholders............................................................................         55
  List of Certificateholders...............................................................................         56
  Events of Default........................................................................................         56
  Rights Upon Event of Default.............................................................................         57
  Amendment................................................................................................         57
  Termination; Optional Purchase of Mortgage Loans.........................................................         58
  The Trustee..............................................................................................         59
Certain Legal Aspects of the Mortgage Loans................................................................         59
  General..................................................................................................         59
  Foreclosure..............................................................................................         60
  Foreclosure on Shares of Cooperatives....................................................................         61
  Rights of Redemption.....................................................................................         61
</TABLE>
 
                                       5
<PAGE>
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
  Anti-Deficiency Legislation and Other Limitations on Lenders.............................................         62
  Soldiers' and Sailors' Civil Relief Act and Similar Laws.................................................         63
  Environmental Considerations.............................................................................         63
  "Due-on-Sale" Clauses....................................................................................         65
  Applicability of Usury Laws..............................................................................         66
  Enforceability of Certain Provisions.....................................................................         66
Certain Federal Income Tax Consequences....................................................................         66
  Federal Income Tax Consequences for REMIC Certificates...................................................         67
  General..................................................................................................         67
  Status of REMIC Certificates.............................................................................         67
  Qualification as a REMIC.................................................................................         68
  Taxation of Regular Certificates.........................................................................         69
    General................................................................................................         69
    Original Issue Discount................................................................................         70
    Acquisition Premium....................................................................................         72
    Variable Rate Regular Certificates.....................................................................         72
    Market Discount........................................................................................         74
    Premium................................................................................................         74
    Election to Treat All Interest Under the Constant Yield Method.........................................         75
    Treatment of Losses....................................................................................         75
    Sale or Exchange of Regular Certificates...............................................................         76
  Taxation of Residual Certificates........................................................................         76
    Taxation of REMIC Income...............................................................................         76
    Basis and Losses.......................................................................................         78
    Treatment of Certain Items of REMIC Income and Expense.................................................         78
    Original Issue Discount and Premium....................................................................         78
    Market Discount........................................................................................         79
    Premium................................................................................................         79
    Limitations on Offset or Exemption of REMIC Income.....................................................         79
    Tax-Related Restrictions on Transfer of Residual Certificates..........................................         80
    Disqualified Organizations.............................................................................         80
    Noneconomic Residual Interests.........................................................................         81
    Foreign Investors......................................................................................         82
    Sale or Exchange of a Residual Certificate.............................................................         82
    Mark to Market Regulations.............................................................................         83
  Taxes That May Be Imposed on the REMIC Pool..............................................................         83
    Prohibited Transactions................................................................................         83
    Contributions to the REMIC Pool After the Startup Day..................................................         83
    Net Income from Foreclosure Property...................................................................         84
  Liquidation of the REMIC Pool............................................................................         84
  Administrative Matters...................................................................................         84
  Limitations on Deduction of Certain Expenses.............................................................         84
  Taxation of Certain Foreign Investors....................................................................         85
    Regular Certificates...................................................................................         85
    Residual Certificates..................................................................................         85
  Backup Withholding.......................................................................................         86
  Reporting Requirements...................................................................................         86
</TABLE>
 
                                       6
<PAGE>
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
  Federal Income Tax Consequences for Certificates as to Which No REMIC Election is Made...................         86
    General................................................................................................         86
    Tax Status.............................................................................................         87
    Premium and Discount...................................................................................         88
    Premium................................................................................................         88
    Original Issue Discount................................................................................         88
    Market Discount........................................................................................         88
    Recharacterization of Servicing Fees...................................................................         88
    Sale or Exchange of Certificates.......................................................................         89
  Stripped Certificates....................................................................................         90
    General................................................................................................         90
    Status of Stripped Certificates........................................................................         91
    Taxation of Stripped Certificates......................................................................         91
    Original Issue Discount................................................................................         91
    Sale or Exchange of Stripped Certificates..............................................................         92
    Purchase of More Than One Class of Stripped Certificates...............................................         92
    Possible Alternative Characterizations.................................................................         92
  Reporting Requirements and Backup Withholding............................................................         93
  Taxation of Certain Foreign Investors....................................................................         93
ERISA Considerations.......................................................................................         93
  General..................................................................................................         93
  Certain Requirements Under ERISA.........................................................................         94
    General................................................................................................         94
    Parties in Interest/Disqualified Persons...............................................................         94
    Delegation of Fiduciary Duty...........................................................................         94
  Administrative Exemptions................................................................................         95
    Individual Administrative Exemptions...................................................................         95
    PTE 83-1...............................................................................................         96
  Exempt Plans.............................................................................................         97
  Unrelated Business Taxable Income -- Residual Certificates...............................................         97
Legal Investment...........................................................................................         97
Plan of Distribution.......................................................................................         99
Use of Proceeds............................................................................................        100
Legal Matters..............................................................................................        100
Rating.....................................................................................................        100
Index of Significant Definitions...........................................................................        101
</TABLE>
 
                                       7
<PAGE>
                             SUMMARY OF PROSPECTUS
 
    THE  FOLLOWING IS  QUALIFIED IN  ITS ENTIRETY  BY REFERENCE  TO THE DETAILED
INFORMATION APPEARING  ELSEWHERE IN  THIS PROSPECTUS,  AND BY  REFERENCE TO  THE
INFORMATION  WITH  RESPECT  TO  EACH SERIES  OF  CERTIFICATES  CONTAINED  IN THE
APPLICABLE  PROSPECTUS  SUPPLEMENT.  CERTAIN  CAPITALIZED  TERMS  USED  AND  NOT
OTHERWISE  DEFINED  HEREIN  SHALL  HAVE THE  MEANINGS  GIVEN  ELSEWHERE  IN THIS
PROSPECTUS.
 
<TABLE>
<CAPTION>
Title of Securities...............  Mortgage Pass-Through Certificates (Issuable in Series).
<S>                                 <C>
Seller............................  Norwest Asset Securities  Corporation (the "Seller"),  a
                                    direct,  wholly-owned  subsidiary  of  Norwest Mortgage,
                                    Inc.  ("Norwest  Mortgage"),   which  is  an   indirect,
                                    wholly-owned subsidiary of Norwest Corporation ("Norwest
                                    Corporation"). See "The Seller."
Servicers.........................  Norwest  Mortgage and,  to the  extent specified  in the
                                    applicable Prospectus  Supplement,  one  or  more  other
                                    entities  identified therein  (each, a  "Servicer") will
                                    service the  Mortgage  Loans  contained  in  each  Trust
                                    Estate.  Each  Servicer will  perform  certain servicing
                                    functions with respect to the Mortgage Loans serviced by
                                    it pursuant to a  related Servicing Agreement (each,  an
                                    "Underlying Servicing Agreement"). See "Servicing of the
                                    Mortgage Loans."
Master Servicer...................  Norwest  Bank Minnesota,  National Association ("Norwest
                                    Bank" and,  in such  capacity, the  "Master  Servicer").
                                    Norwest  Bank  is a  direct, wholly-owned  subsidiary of
                                    Norwest Corporation and an affiliate of the Seller.  The
                                    Master  Servicer  will  perform  certain administration,
                                    calculation and reporting functions with respect to each
                                    Trust Estate and will  supervise the Servicers, in  each
                                    case,  pursuant to a Pooling and Servicing Agreement. In
                                    addition, the Master Servicer will generally be required
                                    to make  Periodic  Advances  (to  the  extent  described
                                    herein) with respect to the Mortgage Loans in each Trust
                                    Estate  to the  extent that the  related Servicer (other
                                    than Norwest Mortgage) fails to make a required Periodic
                                    Advance. See  "Servicing of  the Mortgage  Loans --  The
                                    Master   Servicer"   and  "--   Periodic   Advances  and
                                    Limitations Thereon."
The Trust Estates.................  Each Trust  Estate will  be formed  and each  Series  of
                                    Certificates  will be  issued pursuant to  a pooling and
                                    servicing agreement  (each,  a  "Pooling  and  Servicing
                                    Agreement")  among the  Seller, the  Master Servicer and
                                    the  Trustee  specified  in  the  applicable  Prospectus
                                    Supplement.  Each  Trust  Estate  will  consist  of  the
                                    related Mortgage Loans  (other than  the Fixed  Retained
                                    Yield  (as defined  herein), if  any) and  certain other
                                    related  property,  as   specified  in  the   applicable
                                    Prospectus   Supplement.  The  Mortgage  Loans  will  be
                                    conventional,  fixed   or  adjustable   interest   rate,
                                    mortgage  loans  secured  by  first  liens  on  one-  to
                                    four-family residential properties.
                                    The Mortgage Loans will have been acquired by the Seller
                                    from its affiliate Norwest Mortgage. The Mortgage  Loans
                                    will  have  been originated  by  Norwest Mortgage  or an
                                    affiliate or will have been acquired by Norwest Mortgage
                                    directly  or   indirectly  from   other  mortgage   loan
                                    originators.  All of  the Mortgage Loans  will have been
                                    underwritten either to Norwest
</TABLE>
 
                                       8
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    Mortgage's standards,  to the  extent specified  in  the
                                    applicable  Prospectus Supplement, to the standards of a
                                    Pool Insurer or to standards otherwise specified in  the
                                    Prospectus  Supplement. See "The Trust Estates" and "The
                                    Mortgage Loan Programs -- Mortgage Loan Underwriting."
                                    The particular characteristics or expected
                                    characteristics of the Mortgage Loans and a  description
                                    of  the  other property,  if  any, included  in  a Trust
                                    Estate will be  set forth in  the applicable  Prospectus
                                    Supplement.
Description of the Certificates...  Each  Series of  Certificates will  include one  or more
                                    Classes,  any   of  which   may  consist   of   multiple
                                    Subclasses.  A Class or Subclass of Certificates will be
                                    entitled, to the  extent of funds  available, to  either
                                    (i)  principal and  interest payments in  respect of the
                                    related Mortgage  Loans, (ii)  principal  distributions,
                                    with   no   interest   distributions,   (iii)   interest
                                    distributions, with no  principal distributions or  (iv)
                                    such   other  distributions  as  are  described  in  the
                                    applicable Prospectus Supplement.
Distributions on the
Certificates......................  INTEREST. With respect to  each Series of  Certificates,
                                    interest  on the related Mortgage  Loans at the weighted
                                    average  of  the  applicable  Mortgage  Interest   Rates
                                    thereof (net of servicing fees and certain other amounts
                                    as  described  herein  or in  the  applicable Prospectus
                                    Supplement), will be  passed through to  holders of  the
                                    related  Classes  of Certificates  in the  aggregate, in
                                    accordance with the particular terms of each such  Class
                                    of Certificates. See "Description of the Certificates --
                                    Distributions  to Certificateholders -- Distributions of
                                    Interest" herein. Except as  otherwise specified in  the
                                    applicable Prospectus Supplement, interest on each Class
                                    and  Subclass of Certificates of each Series will accrue
                                    at the  pass-through rate  for each  Class and  Subclass
                                    indicated in the applicable Prospectus Supplement (each,
                                    a  "Pass-Through  Rate")  on  the  outstanding principal
                                    balance or notional amount thereof.
                                    PRINCIPAL. With  respect to  a Series  of  Certificates,
                                    principal   payments  (including  prepayments)  will  be
                                    passed through to holders of the related Certificates or
                                    otherwise applied in accordance with the related Pooling
                                    and  Servicing  Agreement  on  each  Distribution  Date.
                                    Distributions  in reduction of principal balance will be
                                    allocated  among   the   Classes   and   Subclasses   of
                                    Certificates  of a Series in the manner specified in the
                                    applicable Prospectus  Supplement. See  "Description  of
                                    the  Certificates -- Distributions to Certificateholders
                                    -- Distributions of Principal."
Cut-Off Date......................  The  date   specified  in   the  applicable   Prospectus
                                    Supplement.
Distribution Dates................  Distributions on the Certificates will generally be made
                                    on  the 25th day (or, if such day is not a business day,
                                    the business day following the 25th day) of each  month,
                                    commencing  with the month following  the month in which
                                    the   applicable   Cut-Off   Date   occurs   (each,    a
                                    "Distribution  Date"). If so specified in the applicable
                                    Prospectus Supplement, distributions on
</TABLE>
 
                                       9
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    Certificates may  be made  on a  different day  of  each
                                    month or may be made quarterly, or semi-annually, on the
                                    dates specified in such Prospectus Supplement.
Record Dates......................  Distributions  will be made on each Distribution Date to
                                    Certificateholders of record at the close of business on
                                    (unless a different date is specified in the  applicable
                                    Prospectus  Supplement)  the  last business  day  of the
                                    month preceding  the month  in which  such  Distribution
                                    Date occurs (each, a "Record Date").
Credit Enhancement................  A Series of Certificates may include one or more Classes
                                    of  Senior  Certificates  and  one  or  more  Classes of
                                    Subordinated Certificates. The rights of the holders  of
                                    Subordinated   Certificates  of  a   Series  to  receive
                                    distributions with respect to the related Mortgage Loans
                                    will be subordinated  to such rights  of the holders  of
                                    the Senior Certificates of the same Series to the extent
                                    and  in the manner specified  in the applicable Prospec-
                                    tus  Supplement.  This  subordination  is  intended   to
                                    enhance  the  likelihood of  the  timely receipt  by the
                                    Senior Certificateholders of  their proportionate  share
                                    of  scheduled monthly principal and interest payments on
                                    the related Mortgage Loans  and to protect them  against
                                    losses.  This  protection will  be  effected by  (i) the
                                    preferential right of  the Senior Certificateholders  to
                                    receive, prior to any distribution being made in respect
                                    of  the related  Subordinated Certificates  on each Dis-
                                    tribution Date,  current  distributions on  the  related
                                    Mortgage  Loans of  principal and  interest due  them on
                                    each Distribution Date  out of the  funds available  for
                                    distributions  on such date,  (ii) by the  right of such
                                    holders to receive future distributions on the  Mortgage
                                    Loans  that  would otherwise  have  been payable  to the
                                    holders of Subordinated Certificates and/or (iii) by the
                                    prior allocation to the Subordinated Certificate of  all
                                    or  a  portion  of  losses  realized  on  the underlying
                                    Mortgage Loans.
                                    If so specified in the applicable Prospectus Supplement,
                                    the Certificates  of  any Series,  or  any one  or  more
                                    Classes  thereof, may be  entitled to the  benefits of a
                                    limited guarantee, financial guaranty insurance  policy,
                                    surety  bond, letter of  credit, mortgage pool insurance
                                    policy, reserve  fund, cross-support  or other  form  of
                                    credit   enhancement  as  specified  in  the  applicable
                                    Prospectus Supplement. See "Description of the  Certifi-
                                    cates -- Other Credit Enhancement."
Periodic Advances.................  In  the  event  of  delinquencies  in  payments  on  any
                                    Mortgage Loan, the Servicer servicing such Mortgage Loan
                                    will be obligated  to make advances  of cash  ("Periodic
                                    Advances") to the Servicer Custodial Account (as defined
                                    herein) to the extent that such Servicer determines such
                                    Periodic  Advances  would  be  recoverable  from  future
                                    payments and collections on such Mortgage Loan. Any such
                                    Periodic Advances will be reimbursable to such  Servicer
                                    as  described  herein and  in the  applicable Prospectus
                                    Supplement.  The  Master   Servicer  or  Trustee   will,
</TABLE>
 
                                       10
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    in  certain circumstances, be  required to make Periodic
                                    Advances upon a Servicer default. See "Servicing of  the
                                    Mortgage  Loans  --  Periodic  Advances  and Limitations
                                    Thereon."
Forms of Certificates.............  The Certificates will be issued either (i) in book-entry
                                    form ("Book-Entry Certificates") through the  facilities
                                    of The Depository Trust Company ("DTC") or (ii) in fully
                                    registered, certificated form ("Definitive
                                    Certificates").
                                    An  investor  in  a  Class  or  Subclass  of  Book-Entry
                                    Certificates will  not  receive a  physical  certificate
                                    representing  its ownership interest  in such Book-Entry
                                    Certificates, except  under extraordinary  circumstances
                                    which  are discussed in "Description of the Certificates
                                    -- Definitive  Form" in  this Prospectus.  Instead,  DTC
                                    will  effect  payments  and transfers  by  means  of its
                                    electronic  recordkeeping   services,   acting   through
                                    certain  participating organizations. This may result in
                                    certain  delays  in  receipt  of  distributions  by   an
                                    investor  and  may  restrict  an  investor's  ability to
                                    pledge its securities.  The rights of  investors in  the
                                    Book-Entry  Certificates may generally only be exercised
                                    through DTC  and  its participating  organizations.  See
                                    "Description  of the Certificates -- Book-Entry Form" in
                                    this Prospectus.
Optional Purchase of Defaulted
Mortgage Loans....................  The Seller or the Master  Servicer, may, subject to  the
                                    terms of the applicable Pooling and Servicing Agreement,
                                    purchase  any  defaulted Mortgage  Loan or  any Mortgage
                                    Loan as to which default is reasonably foreseeable  from
                                    the  related  Trust Estate.  See "Pooling  and Servicing
                                    Agreement -- Optional Purchases."
Optional Purchase of All Mortgage
Loans.............................  If  so  specified  in  the  Prospectus  Supplement  with
                                    respect  to a Series, all, but not less than all, of the
                                    Mortgage Loans  in  the  related Trust  Estate  and  any
                                    property acquired in respect thereof at the time, may be
                                    purchased  by the Seller, Norwest Mortgage or such other
                                    party as  is  specified  in  the  applicable  Prospectus
                                    Supplement,  in the manner and at the price specified in
                                    such  Prospectus  Supplement.  In  the  event  that   an
                                    election  is made to treat  the related Trust Estate (or
                                    one or more  segregated pools  of assets  therein) as  a
                                    REMIC,  any such purchase will be effected only pursuant
                                    to a "qualified liquidation,"  as defined under  Section
                                    860F(a)(4)(A)  of the Internal Revenue  Code of 1986, as
                                    amended (the "Code"). Exercise of the right of  purchase
                                    will  effect the early retirement of the Certificates of
                                    that Series. See "Prepayment and Yield Considerations."
ERISA Limitations.................  A fiduciary of any employee benefit plan subject to  the
                                    fiduciary  responsibility  provisions  of  the  Employee
                                    Retirement Income  Security  Act  of  1974,  as  amended
                                    ("ERISA"),  including the "prohibited transaction" rules
                                    thereunder, and to the  corresponding provisions of  the
                                    Code,   should  carefully  review  with  its  own  legal
                                    advisors   whether   the   purchase   or   holding    of
</TABLE>
 
                                       11
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    Certificates could give rise to a transaction prohibited
                                    or  otherwise impermissible under ERISA or the Code. See
                                    "ERISA Considerations."
Tax Status........................  The treatment of the Certificates for federal income tax
                                    purposes will be determined by whether a REMIC  election
                                    is made with respect to a Series of Certificates and, if
                                    a  REMIC election  is made, by  whether the Certificates
                                    are  Regular  Interests   or  Residual  Interests.   See
                                    "Certain Federal Income Tax Consequences."
Legal Investment..................  The   applicable  Prospectus   Supplement  will  specify
                                    whether the  Class or  Classes of  Certificates  offered
                                    will   constitute  "mortgage   related  securities"  for
                                    purposes of  the Secondary  Mortgage Market  Enhancement
                                    Act  of  1984. Investors  whose investment  authority is
                                    subject to legal restrictions  should consult their  own
                                    legal  advisors to determine whether  and to what extent
                                    such Certificates constitute legal investments for them.
                                    See "Legal  Investment"  herein and  in  the  applicable
                                    Prospectus Supplement.
Rating............................  It is a condition to the issuance of the Certificates of
                                    any  Series offered  pursuant to  this Prospectus  and a
                                    Prospectus Supplement  that each  Class or  Subclass  be
                                    rated in one of the four highest rating categories by at
                                    least   one  nationally  recognized  statistical  rating
                                    organization (a "Rating Agency").  A security rating  is
                                    not   a  recommendation   to  buy,  sell   or  hold  the
                                    Certificates of any Series and is subject to revision or
                                    withdrawal at any time  by the assigning rating  agency.
                                    Further,  such  ratings  do not  address  the  effect of
                                    prepayments on the yield anticipated by an investor.
</TABLE>
 
                                       12
<PAGE>
                                  RISK FACTORS
 
    INVESTORS  SHOULD  CONSIDER, AMONG  OTHER THINGS,  THE FOLLOWING  FACTORS IN
CONNECTION WITH THE PURCHASE OF CERTIFICATES.
 
LIMITED LIQUIDITY
 
    There can be no  assurance that a secondary  market for the Certificates  of
any  Series  will  develop  or,  if  it  does  develop,  that  it  will  provide
Certificateholders with liquidity of investment or that it will continue for the
life of the Certificates of any Series. The Prospectus Supplement for any Series
of Certificates may indicate  that an underwriter  specified therein intends  to
establish  a secondary market in such  Certificates, however no underwriter will
be obligated to do so. Unless specified in the applicable Prospectus Supplement,
the Certificates will not be listed on any securities exchange.
 
LIMITED OBLIGATIONS
 
    Except for any  related insurance policies  and any reserve  fund or  credit
enhancement  described in  the applicable Prospectus  Supplement, Mortgage Loans
included in the related Trust Estate will be the sole source of payments on  the
Certificates  of a Series. The Certificates of  any Series will not represent an
interest in or obligation of NASCOR, Norwest Mortgage, Norwest Bank, the Trustee
or any of their affiliates, except for NASCOR's limited obligations with respect
to certain breaches  of its representations  and warranties, Norwest  Mortgage's
obligations  as  Servicer and  Norwest  Bank's obligations  as  Master Servicer.
Neither the Certificates of  any Series nor the  related Mortgage Loans will  be
guaranteed  or insured  by any  governmental agency  or instrumentality, NASCOR,
Norwest Mortgage, Norwest  Bank, the  Trustee, any  of their  affiliates or  any
other person. Consequently, in the event that payments on the Mortgage Loans are
insufficient  or  otherwise unavailable  to make  all  payments required  on the
Certificates, there will  be no  recourse to NASCOR,  Norwest Mortgage,  Norwest
Bank,  the  Trustee  or,  except  as  specified  in  the  applicable  Prospectus
Supplement, any other entity.
 
LIMITATIONS, REDUCTION AND SUBSTITUTION OF CREDIT ENHANCEMENT
 
    With respect  to each  Series  of Certificates,  credit enhancement  may  be
provided  in limited amounts to cover certain  types of losses on the underlying
Mortgage Loans. Credit enhancement will be provided in one or more of the  forms
referred  to  herein,  including, but  not  limited to:  subordination  of other
Classes of Certificates  of the same  Series; a limited  guarantee; a  financial
guaranty  insurance policy; a surety bond; a  letter of credit; a pool insurance
policy; a  special  hazard insurance  policy;  a mortgagor  bankruptcy  bond;  a
reserve  fund; cross-support; and  any combination thereof.  See "Description of
the Certificates -- Other Credit Enhancement" herein. Regardless of the form  of
credit  enhancement provided, the  amount of coverage will  be limited in amount
and in most cases  will be subject  to periodic reduction  in accordance with  a
schedule or formula. Furthermore, such credit enhancements may provide only very
limited  coverage as to certain types of  losses, and may provide no coverage as
to certain other types of losses. All or a portion of the credit enhancement for
any Series of Certificates will generally be permitted to be reduced, terminated
or substituted  for, in  the sole  discretion of  the Master  Servicer, if  each
applicable Rating Agency indicates that the then current rating thereof will not
be  adversely  affected.  In the  event  losses  exceed the  amount  of coverage
provided by any credit enhancement or losses of a type not covered by any credit
enhancement occur,  such losses  will be  borne by  the holders  of the  related
Certificates  (or  certain  Classes  thereof).  The  rating  of  any  Series  of
Certificates by  any  applicable Rating  Agency  may be  lowered  following  the
initial  issuance thereof as a  result of the downgrading  of the obligations of
any applicable credit support provider, or as a result of losses on the  related
Mortgage Loans in excess of the levels contemplated by such Rating Agency at the
time  of its initial rating analysis.  Neither NASCOR, Norwest Mortgage, Norwest
Bank, nor  any  of their  affiliates  will have  any  obligation to  replace  or
supplement  any credit enhancement, or to take  any other action to maintain any
rating of any  Class of Certificates.  See "Description of  the Certificates  --
Other Credit Enhancement."
 
                                       13
<PAGE>
RISKS OF THE MORTGAGE LOANS
 
    An  investment  in  securities  such as  the  Certificates,  which generally
represent interests in pools of residential mortgage loans, may be affected  by,
among  other  things,  a  decline  in real  estate  values  and  changes  in the
mortgagor's financial condition. No  assurance can be given  that the values  of
the  Mortgaged  Properties  (as  defined  herein)  securing  the  Mortgage Loans
underlying any Series  of Certificates  have remained  or will  remain at  their
levels  on  the dates  of  origination of  the  related Mortgage  Loans.  If the
residential real estate market should experience an overall decline in  property
values  such that the outstanding balances of  the Mortgage Loans contained in a
particular  Trust  Estate,  and  any   secondary  financing  on  the   Mortgaged
Properties,  become  equal  to  or  greater  than  the  value  of  the Mortgaged
Properties, the actual rates of delinquencies, foreclosures and losses could  be
higher than those now generally experienced in the mortgage lending industry and
those   experienced  in   Norwest  Mortgage's  or   other  Servicers'  servicing
portfolios. In addition to risk factors  related to the residential real  estate
market  generally, certain geographic regions of  the United States from time to
time will experience weaker regional economic conditions and housing markets  or
be  directly or indirectly  affected by natural  disasters or civil disturbances
such as earthquakes, hurricanes, floods,  eruptions or riots and,  consequently,
will  experience higher  rates of  loss and  delinquency than  on mortgage loans
generally. Although  Mortgaged Properties  located in  certain identified  flood
zones  will be required to be covered, to the maximum extent available, by flood
insurance, as  described under  "Servicing of  the Mortgage  Loans --  Insurance
Policies,"  no Mortgaged  Properties will  otherwise be  required to  be insured
against earthquake  damage of  any other  loss not  covered by  Standard  Hazard
Insurance  Policies,  as described  under "Servicing  of  the Mortgage  Loans --
Insurance  Policies."  Adverse  economic  conditions  generally,  in  particular
geographic  areas  or  industries,  or  affecting  particular  segments  of  the
borrowing community  (such  as  mortgagors  relying  on  commission  income  and
self-employed  mortgagors) and  other factors which  may or may  not affect real
property values (including the purposes for  which the Mortgage Loans were  made
and  the uses  of the  Mortgaged Properties)  may affect  the timely  payment by
mortgagors of scheduled payments of principal and interest on the Mortgage Loans
and, accordingly, the  actual rates  of delinquencies,  foreclosures and  losses
with  respect to any Trust Estate.  The Mortgage Loans underlying certain Series
of Certificates may be concentrated  in certain regions, and such  concentration
may  present  risk considerations  in addition  to  those generally  present for
similar mortgage-backed securities without such concentration. See "The Mortgage
Loan  Programs  --  Mortgage  Loan  Underwriting"  and  "Prepayment  and   Yield
Considerations  -- Weighted Average Life of  Certificates" herein. To the extent
that such losses are not covered  by the applicable credit enhancement,  holders
of  Certificates of the Series evidencing  interests in the related Trust Estate
will bear all risk of loss resulting from default by mortgagors and will have to
look primarily to  the value  of the Mortgaged  Properties for  recovery of  the
outstanding  principal and unpaid interest on  the defaulted Mortgage Loans. See
"The Trust  Estates  -- Mortgage  Loans"  and  "The Mortgage  Loan  Programs  --
Mortgage Loan Underwriting."
 
YIELD AND PREPAYMENT CONSIDERATIONS
 
    The yield of the Certificates of each Series will depend in part on the rate
of  principal payment on the Mortgage Loans (including prepayments, liquidations
due to defaults  and mortgage  loan repurchases).  Such yield  may be  adversely
affected,  depending upon  whether a  particular Certificate  is purchased  at a
premium or  discount  price, by  a  higher or  lower  than anticipated  rate  of
prepayments  on the related Mortgage Loans.  In particular, the yield on Classes
of Certificates  entitling  the  holders thereof  primarily  or  exclusively  to
payments  of interest or primarily or  exclusively to payments of principal will
be extremely sensitive to the rate of prepayments on the related Mortgage Loans.
In addition, the yield on certain Classes of Certificates may be relatively more
sensitive to  the rate  of prepayment  of specified  Mortgage Loans  than  other
Classes  of Certificates. In particular, prepayments  are influenced by a number
of factors,  including  prevailing mortgage  market  interest rates,  local  and
national  economic conditions and homeowner mobility.  In addition, the yield to
investors may be adversely affected by interest shortfalls which may result from
the timing of the receipt of prepayments or liquidations to the extent that such
interest shortfalls  are  not  covered  by aggregate  Servicing  Fees  or  other
mechanisms  specified  in the  applicable  Prospectus Supplement.  The  yield to
 
                                       14
<PAGE>
investors in Classes of  Certificates will be adversely  affected to the  extent
that  losses on the Mortgage Loans in  the related Trust Estate are allocated to
such Classes  and  may  be  adversely  affected  to  the  extent  of  unadvanced
delinquencies  on the  Mortgage Loans  in the  related Trust  Estate. Classes of
Certificates identified in the applicable Prospectus Supplement as  Subordinated
Certificates  are more  likely to be  affected by delinquencies  and losses than
other Classes of Certificates. See "Prepayment and Yield Considerations."
 
BOOK-ENTRY SYSTEM FOR CERTAIN CLASSES AND SUBCLASSES OF CERTIFICATES
 
    Since transactions in the Classes and Subclasses of Book-Entry  Certificates
of  any Series generally can be effected  only through DTC, DTC Participants and
Indirect  DTC  Participants,  the  ability  of  a  Beneficial  Owner  to  pledge
Book-Entry  Certificates to persons  or entities that do  not participate in the
DTC system, or to  otherwise act with respect  to such Book-Entry  Certificates,
may  be limited due  to the lack  of a physical  certificate for such Book-Entry
Certificates. In  addition, under  a book-entry  format, Beneficial  Owners  may
experience delays in their receipt of payments, since distributions will be made
by  the Master Servicer, or a Paying Agent  on behalf of the Master Servicer, to
Cede, as  nominee for  DTC. Also,  issuance of  the Book-Entry  Certificates  in
book-entry form may reduce the liquidity thereof in any secondary trading market
that  may  develop  therefor  because investors  may  be  unwilling  to purchase
securities for which they cannot  obtain delivery of physical certificates.  See
"Description of the Certificates -- Book-Entry Form" herein.
 
                               THE TRUST ESTATES
 
GENERAL
 
    The  Trust Estate for each Series  of Certificates will consist primarily of
Mortgage Loans evidenced by promissory  notes (the "Mortgage Notes") secured  by
mortgages,  deeds  of  trust  or other  instruments  creating  first  liens (the
"Mortgages")  on  some  or   all  of  the  following   six  types  of   property
(as  so secured,  the "Mortgaged  Properties"), to the  extent set  forth in the
applicable Prospectus Supplement: (i)  one- to four-family detached  residences,
(ii)  townhouses,  (iii)  condominium  units,  (iv)  units  within  planned unit
developments, (v) long-term  leases with respect  to any of  the foregoing,  and
(vi)  shares issued by private  non-profit housing corporations ("cooperatives")
and the related  proprietary leases or  occupancy agreements granting  exclusive
rights to occupy specified units in such cooperatives' buildings. In addition, a
Trust Estate will also include (i) amounts held from time to time in the related
Certificate  Account,  (ii)  the  Seller's  interest  in  any  primary  mortgage
insurance,  hazard  insurance,  title  insurance  or  other  insurance  policies
relating  to  a Mortgage  Loan,  (iii) any  property  which initially  secured a
Mortgage Loan and which  has been acquired by  foreclosure or trustee's sale  or
deed  in lieu of foreclosure  or trustee's sale, (iv)  if applicable, and to the
extent set forth in  the applicable Prospectus Supplement,  any reserve fund  or
funds,  (v)  if  applicable, and  to  the  extent set  forth  in  the applicable
Prospectus Supplement, contractual obligations of any person to make payments in
respect of any form of credit enhancement or any interest subsidy agreement  and
(vi)  such  other  assets  as  may be  specified  in  the  applicable Prospectus
Supplement. The Trust  Estate will not  include the portion  of interest on  the
Mortgage  Loans  which  constitutes  the  Fixed  Retained  Yield,  if  any.  See
"Servicing of the Mortgage Loans -- Fixed Retained Yield, Servicing Compensation
and Payment of Expenses."
 
MORTGAGE LOANS
 
    The Mortgage Loans will have been acquired by the Seller from its affiliate,
Norwest Mortgage.  The  Mortgage Loans  will  have been  originated  by  Norwest
Mortgage or will have been acquired by Norwest Mortgage from other affiliated or
unaffiliated  mortgage  loan  originators.  Each Mortgage  Loan  will  have been
underwritten either to Norwest Mortgage's standards, to the extent specified  in
the  applicable Prospectus Supplement, to the standards  of a Pool Insurer or to
such other standards set forth in the applicable Prospectus Supplement. See "The
Mortgage Loan Programs --  Mortgage Loan Production Sources"  and " --  Mortgage
Loan Underwriting." The Prospectus Supplement for each Series will set forth the
respective number and principal amounts of Mortgage Loans
 
                                       15
<PAGE>
(i)  originated  by Norwest  Mortgage  or its  affiliate  and (ii)  purchased by
Norwest Mortgage or its affiliates  from unaffiliated mortgage loan  originators
through Norwest Mortgage's mortgage loan purchase programs.
 
    Each  of the  Mortgage Loans will  be secured  by a Mortgage  on a Mortgaged
Property located in any of the 50 states or the District of Columbia. Generally,
the land underlying a Mortgaged Property will consist of five acres or less  but
may consist of greater acreage in Norwest Mortgage's discretion.
 
    If specified in the applicable Prospectus Supplement, the Mortgage Loans may
be  secured by leases on real property under circumstances that Norwest Mortgage
determines in its discretion are  commonly acceptable to institutional  mortgage
investors. A Mortgage Loan secured by a lease on real property is secured not by
a  fee simple  interest in the  Mortgaged Property  but rather by  a lease under
which the mortgagor has the right, for a specified term, to use the related real
estate and the residential dwelling located thereon. Generally, a Mortgage  Loan
will  be secured by a lease only if the use of leasehold estates as security for
mortgage loans is customary in the area,  the lease is not subject to any  prior
lien  that could result  in termination of the  lease and the  term of the lease
ends at least five years beyond the maturity date of the related Mortgage  Loan.
The  provisions of each lease securing a Mortgage Loan will expressly permit (i)
mortgaging of the  leasehold estate, (ii)  assignment of the  lease without  the
lessor's consent and (iii) acquisition by the holder of the Mortgage, in its own
or  its  nominee's  name,  of  the rights  of  the  lessee  upon  foreclosure or
assignment in lieu of foreclosure,  unless alternative arrangements provide  the
holder  of the  Mortgage with substantially  similar protections.  No lease will
contain provisions which (i) provide  for termination upon the lessee's  default
without  the holder of the Mortgage being entitled to receive written notice of,
and opportunity to cure, such default, (ii) provide for termination in the event
of damage  or destruction  as long  as the  Mortgage is  in existence  or  (iii)
prohibit  the  holder  of  the  Mortgage from  being  insured  under  the hazard
insurance policy or policies related to the premises.
 
    The Prospectus  Supplement will  set forth  the geographic  distribution  of
Mortgaged  Properties and the number and  aggregate unpaid principal balances of
the Mortgage Loans by category of Mortgaged Property. The Prospectus  Supplement
for  each Series will also set forth the  range of original terms to maturity of
the Mortgage Loans in the Trust  Estate, the weighted average remaining term  to
stated  maturity at the  Cut-Off Date of  such Mortgage Loans,  the earliest and
latest months  of origination  of such  Mortgage Loans,  the range  of  Mortgage
Interest Rates borne by such Mortgage Loans, if such Mortgage Loans have varying
Net  Mortgage Interest Rates, the weighted average Net Mortgage Interest Rate at
the Cut-Off Date of  such Mortgage Loans, the  range of Loan-to-Value Ratios  at
the  time  of origination  of such  Mortgage  Loans and  the range  of principal
balances at origination of such Mortgage Loans.
 
    The information with respect to the Mortgage Loans and Mortgaged  Properties
described  in the  preceding two paragraphs  may be presented  in the Prospectus
Supplement for a Series  as ranges in which  the actual characteristics of  such
Mortgage Loans and Mortgaged Properties are expected to fall. In all such cases,
information  as to the final characteristics of the Mortgage Loans and Mortgaged
Properties will be available in a Current Report on Form 8-K which will be filed
with the  Commission within  15 days  of  the initial  issuance of  the  related
Series.
 
    The  Mortgage Loans in  a Trust Estate will  generally have monthly payments
due on the first of each month (each, a "Due Date") but may, if so specified  in
the  applicable Prospectus Supplement,  have payments due on  a different day of
each month and will be of one of the following types of mortgage loans:
 
    A. FIXED  RATE  LOANS.    If  so  specified  in  the  applicable  Prospectus
Supplement,  a Trust  Estate may  contain fixed-rate,  fully-amortizing mortgage
loans providing for level monthly payments  of principal and interest and  terms
at  origination or modification of  not more than 30  years. If specified in the
applicable Prospectus Supplement, fixed rates  on certain Mortgage Loans may  be
converted  to adjustable rates after origination of such Mortgage Loans and upon
the satisfaction  of other  conditions specified  in the  applicable  Prospectus
Supplement. If so specified in the applicable Prospectus
 
                                       16
<PAGE>
Supplement,  the  Pooling and  Servicing Agreement  will  require the  Seller or
another party to repurchase each such  converted Mortgage Loan at the price  set
forth  in the applicable Prospectus Supplement.  A Trust Estate containing fixed
rate Mortgage Loans may contain convertible Mortgage Loans which have  converted
from  an adjustable interest rate prior to the formation of the Trust Estate and
which are subject to no further conversions.
 
    B. ADJUSTABLE RATE  LOANS.   If so  specified in  the applicable  Prospectus
Supplement, a Trust Estate may contain fully-amortizing adjustable-rate mortgage
loans  having an original or modified term to maturity of not more than 30 years
with a related Mortgage Interest  Rate which generally adjusts initially  either
six  months, one,  three, five,  seven or  ten years  subsequent to  the initial
payment date, and thereafter  at either six-month,  one-year or other  intervals
over  the term of the mortgage loan to equal the sum of a fixed margin set forth
in the related Mortgage Note and an index. The applicable Prospectus  Supplement
will  set forth the relevant index and  the highest, lowest and weighted average
margin with respect to the adjustable  rate mortgage loans in the related  Trust
Estate.  The applicable Prospectus Supplement will also indicate any periodic or
lifetime limitations on changes in  any per annum Mortgage  Rate at the time  of
any adjustment.
 
    If  specified in the  applicable Prospectus Supplement,  adjustable rates on
certain Mortgage Loans may be converted to fixed rates after origination of such
Mortgage Loans and  upon the  satisfaction of  the conditions  specified in  the
applicable  Prospectus  Supplement. If  specified  in the  applicable Prospectus
Supplement, the Seller or another party will generally be required to repurchase
each such  converted Mortgage  Loan at  the price  set forth  in the  applicable
Prospectus  Supplement. A Trust Estate containing adjustable rate Mortgage Loans
may contain  convertible  Mortgage  Loans  which have  converted  from  a  fixed
interest rate prior to the formation of the Trust Estate.
 
    If  so specified in  the applicable Prospectus  Supplement, the Trust Estate
may contain adjustable-rate  mortgage loans which  have Mortgage Interest  Rates
that  generally adjust monthly or may adjust  at other intervals as specified in
the applicable  Prospectus Supplement.  The scheduled  monthly payment  will  be
adjusted  as  and when  described in  the  applicable Prospectus  Supplement (at
intervals different from those at which the Mortgage Interest Rate is  adjusted)
to an amount that would fully amortize the Mortgage Loan over its remaining term
on  a level debt service basis; provided that increases in the scheduled monthly
payment may be  subject to certain  limitations as specified  in the  applicable
Prospectus  Supplement, thereby resulting in negative amortization of principal.
If an adjustment to the  Mortgage Interest Rate on  such a Mortgage Loan  causes
the  amount  of interest  accrued thereon  in  any month  to exceed  the current
scheduled monthly  payment  on  such  mortgage loan,  the  resulting  amount  of
interest  that has accrued but is not then payable ("Deferred Interest") will be
added to the principal balance of such Mortgage Loan.
 
    C. GRADUATED PAYMENT LOANS.   If so specified  in the applicable  Prospectus
Supplement,  a Trust Estate  may contain fixed-rate,  graduated payment mortgage
loans having original or modified  terms to maturity of  not more than 30  years
with  monthly  payments during  the first  year  calculated on  the basis  of an
assumed interest rate which is a specified percentage below the Mortgage Rate on
such mortgage  loan. Such  monthly payments  increase at  the beginning  of  the
second  year  by  a  specified  percentage of  the  monthly  payment  during the
preceding year and  each year specified  thereafter to the  extent necessary  to
amortize the mortgage loan over the remainder of its term. Deferred Interest, if
any, will be added to the principal balance of such mortgage loans.
 
    D.  SUBSIDY LOANS.  If so specified in the applicable Prospectus Supplement,
a Trust Estate may contain Mortgage Loans subject to temporary interest  subsidy
agreements  ("Subsidy Loans") pursuant to which the monthly payments made by the
related mortgagors will  be less  than the  scheduled monthly  payments on  such
Mortgage  Loans with  the present value  of the resulting  difference in payment
("Subsidy Payments") being provided by the employer of the mortgagor,  generally
on  an annual basis.  Subsidy Payments will  generally be placed  in a custodial
account ("Subsidy Account")
 
                                       17
<PAGE>
by the related Servicer. Despite the existence of a subsidy program, a mortgagor
remains primarily liable for making all scheduled payments on a Subsidy Loan and
for all other obligations provided for in the related Mortgage Note and Mortgage
Loan.
 
    Subsidy Loans are offered by employers generally through either a  graduated
or  fixed  subsidy loan  program, or  a  combination thereof.  The terms  of the
subsidy agreements relating  to Subsidy Loans  generally range from  one to  ten
years.  The subsidy agreements relating to  Subsidy Loans made under a graduated
program generally will  provide for  subsidy payments that  result in  effective
subsidized  interest rates between  three percentage points  and five percentage
points below  the Mortgage  Interest  Rates specified  in the  related  Mortgage
Notes.  Generally, under a graduated program, the subsidized rate for a Mortgage
Loan will increase approximately one percentage  point per year until it  equals
the full Mortgage Interest Rate. For example, if the initial subsidized interest
rate is five percentage points below the Mortgage Interest Rate in year one, the
subsidized  rate  will increase  to four  percentage  points below  the Mortgage
Interest Rate in year two, and likewise until year six, when the subsidized rate
will equal the Mortgage Interest Rate. Where the subsidy agreements relating  to
Subsidy  Loans are in effect for longer than five years, the subsidized interest
rates generally increase  at smaller  percentage increments for  each year.  The
subsidy  agreements  relating  to  Subsidy  Loans  made  under  a  fixed program
generally will  provide  for  subsidized interest  rates  at  fixed  percentages
(generally  one percentage  point to two  percentage points)  below the Mortgage
Interest Rates for  specified periods,  generally not  in excess  of ten  years.
Subsidy Loans are also offered pursuant to combination fixed/graduated programs.
The subsidy agreements relating to such Subsidy Loans generally will provide for
an  initial fixed  subsidy of  up to  five percentage  points below  the related
Mortgage Interest Rate for up  to five years, and  then a periodic reduction  in
the  subsidy for up to  five years, at an equal  fixed percentage per year until
the subsidized rate equals the Mortgage Interest Rate.
 
    Generally, employers may terminate subsidy programs in the event of (i)  the
mortgagor's  death, retirement,  resignation or termination  of employment, (ii)
the full prepayment  of the Subsidy  Loan by  the mortgagor, (iii)  the sale  or
transfer by the mortgagor of the related Mortgaged Property as a result of which
the  mortgagee  is  entitled to  accelerate  the  Subsidy Loan  pursuant  to the
"due-on-sale" clause  contained in  the Mortgage,  or (iv)  the commencement  of
foreclosure  proceedings or the acceptance of a  deed in lieu of foreclosure. In
addition, some  subsidy programs  provide  that if  prevailing market  rates  of
interest  on mortgage loans similar to a Subsidy Loan are less than the Mortgage
Interest Rate of such Subsidy Loan, the employer may request that the  mortgagor
refinance  such Subsidy Loan and may  terminate the related subsidy agreement if
the mortgagor fails to refinance such  Subsidy Loan. In the event the  mortgagor
refinances  such Subsidy Loan,  the new loan  will not be  included in the Trust
Estate. See "Prepayment and Yield Considerations" herein. In the event a subsidy
agreement is terminated,  the amount remaining  in the Subsidy  Account will  be
returned  to the employer, and the mortgagor  will be obligated to make the full
amount of  all remaining  scheduled payments,  if any.  The mortgagor's  reduced
monthly  housing expense as a consequence  of payments under a subsidy agreement
is used  by Norwest  Mortgage in  determining certain  expense-to-income  ratios
utilized  in underwriting  a Subsidy  Loan. See  "The Mortgage  Loan Programs --
Mortgage Loan Underwriting."
 
    E. BUY-DOWN LOANS.  If so specified in the applicable Prospectus Supplement,
a Trust Estate may  contain Mortgage Loans subject  to temporary buy-down  plans
("Buy-Down  Loans") pursuant to which the monthly payments made by the mortgagor
during the early  years of the  Mortgage Loan  will be less  than the  scheduled
monthly  payments on the Mortgage Loan. The resulting difference in payment will
be compensated  for from  an amount  contributed by  the seller  of the  related
Mortgaged  Property or another source, including  the originator of the Mortgage
Loan (generally on a present value basis) and, if so specified in the applicable
Prospectus Supplement, placed in  a custodial account  (the "Buy-Down Fund")  by
the  related Servicer. If the mortgagor on a Buy-Down Loan prepays such Mortgage
Loan in  its entirety,  or defaults  on  such Mortgage  Loan and  the  Mortgaged
Property is sold in liquidation thereof, during the period when the mortgagor is
not obligated, on account of the buy-
 
                                       18
<PAGE>
down  plan, to  pay the  full monthly  payment otherwise  due on  such loan, the
unpaid principal balance of  such Buy-Down Loan will  be reduced by the  amounts
remaining  in the  Buy-Down Fund  with respect to  such Buy-Down  Loan, and such
amounts will be deposited in the  Servicer Custodial Account or the  Certificate
Account,  net of  any amounts  paid with  respect to  such Buy-Down  Loan by any
insurer, guarantor or other person pursuant to a credit enhancement  arrangement
described in the applicable Prospectus Supplement.
 
    F.  BALLOON LOANS.  If so specified in the applicable Prospectus Supplement,
a Trust  Estate may  include Mortgage  Loans which  are amortized  over a  fixed
period  not exceeding 30  years but which  have shorter terms  to maturity (each
such Mortgage  Loan, a  "Balloon Loan")  that causes  the outstanding  principal
balance  of the  related Mortgage Loan  to be  due and payable  at the  end of a
certain specified period (the  "Balloon Period"). The  borrower of such  Balloon
Loan  will be obligated to  pay the entire outstanding  principal balance of the
Balloon Loan at  the end of  the related  Balloon Period. In  the event  Norwest
Mortgage  refinances a mortgagor's  Balloon Loan at maturity,  the new loan will
not be included in the Trust  Estate. See "Prepayment and Yield  Considerations"
herein.
 
    A  Trust  Estate may  also include  other types  of first  lien, residential
Mortgage Loans to the extent set forth in the applicable Prospectus Supplement.
 
                                   THE SELLER
 
    Norwest Asset Securities Corporation (the "Seller" or "NASCOR") is a direct,
wholly owned subsidiary of Norwest Mortgage, Inc. and an indirect, wholly  owned
subsidiary  of Norwest  Corporation, a corporation  organized under  the laws of
Delaware ("Norwest Corporation"). The  Seller was incorporated  in the State  of
Delaware on March 28, 1996.
 
    The limited purposes of the Seller are, in general, to acquire, own and sell
mortgage  loans; to  issue, acquire,  own, hold  and sell  mortgage pass-through
securities which represent  ownership interests in  mortgage loans,  collections
thereon  and related properties; and to engage  in any acts which are incidental
to, or necessary, suitable or convenient to accomplish, the foregoing.
 
    The Seller maintains its principal office at 5325 Spectrum Drive, Frederick,
Maryland 21701. Its telephone number is (301) 846-8881.
 
    At the time of  the formation of  any Trust Estate, the  Seller will be  the
sole  owner of all the related Mortgage Loans. The Seller will have acquired the
Mortgage Loans included in any Trust Estate from Norwest Mortgage. Except to the
extent otherwise specified in the applicable Prospectus Supplement, the Seller's
only obligation  with respect  to the  Certificates  of any  Series will  be  to
repurchase  or substitute for Mortgage  Loans in a Trust  Estate in the event of
defective documentation  or  upon  the breach  of  certain  representations  and
warranties  made  by the  Seller. See  "The Pooling  and Servicing  Agreement --
Assignment of Mortgage Loans to the Trustee."
 
                                NORWEST MORTGAGE
 
    Norwest Mortgage, Inc. ("Norwest Mortgage") was originally incorporated as a
Minnesota corporation on July 1, 1983. On August 30, 1995, Norwest Mortgage  and
Directors  Mortgage  Loan  Corporation, a  California  corporation,  completed a
statutory merger.  As  a result  of  the  merger, Norwest  became  a  California
corporation  as of September 1, 1995. Norwest Mortgage is engaged principally in
the business of (i) originating and purchasing residential mortgage loans in its
own name and through its affiliates,  Norwest Funding, Inc. and Norwest  Funding
II,  Inc.  (collectively,  "Norwest  Funding")  and  (ii)  servicing residential
mortgage loans  for  its own  account  or for  the  account of  others.  Norwest
Mortgage  is a  direct, wholly  owned subsidiary  of Norwest  Nova, Inc.  and an
indirect, wholly owned subsidiary of Norwest Corporation. The executive  offices
of  Norwest Mortgage are located  at 405 Southwest 5th  Street, Des Moines, Iowa
50309-4603, and its telephone number is (515) 221-7300.
 
    On May 7,  1996 Norwest  Mortgage and Norwest  Funding acquired  all of  the
mortgage  origination,  servicing  and  secondary  marketing  operations  of The
Prudential Home Mortgage Company, Inc.
 
                                       19
<PAGE>
("PHMC"), an  indirect,  wholly owned  subsidiary  of The  Prudential  Insurance
Company  of  America,  and purchased  certain  mortgage  loans from  PHMC  and a
substantial portion of  PHMC's mortgage servicing  portfolio (such  transaction,
the  "PHMC  Acquisition").  The  Mortgage Loans  included  in  any  Trust Estate
underlying a Series of Certificates may consist of (i) Mortgage Loans originated
by Norwest  Mortgage or  Norwest Funding  or purchased  by Norwest  Mortgage  or
Norwest  Funding from  originators other  than PHMC  ("Norwest Mortgage Loans"),
(ii) Mortgage Loans  originated or  purchased by  PHMC and  acquired by  Norwest
Mortgage  or Norwest Funding  from PHMC as  part of the  PHMC Acquisition ("PHMC
Mortgage Loans")  or (iii)  a combination  of Norwest  Mortgage Loans  and  PHMC
Mortgage Loans.
 
    Norwest  Mortgage is an approved servicer  of FNMA, FHLMC and the Government
National Mortgage Association. As of December  31, 1995, Norwest Mortgage had  a
net  worth  of  approximately $314.8  million.  Prior to  the  PHMC Acquisition,
Norwest Mortgage serviced residential mortgage loans for its own account or  the
account  of others with  an aggregate unpaid  principal balance as  of March 31,
1996 of $         . Following the PHMC Acquisition, Norwest Mortgage became  the
servicer  of  residential  mortgage  loans with  an  aggregate  unpaid principal
balance as of  March 31,  1996 of $            and the subservicer  for PHMC  of
mortgage  loans with an aggregate unpaid principal  balance as of March 31, 1996
of $        .
 
                                  NORWEST BANK
 
    Norwest Bank Minnesota,  National Association ("Norwest  Bank") will act  as
Master  Servicer with respect to  each Series. Norwest Bank  is a direct, wholly
owned subsidiary  of Norwest  Corporation. Norwest  Bank is  a national  banking
association  originally chartered  in 1872  and is  engaged in  a wide  range of
activities typical of a national bank.
 
    Norwest Bank's  principal office  is located  at Norwest  Center, Sixth  and
Marquette,  Minneapolis,  Minnesota  55479.  Norwest  Bank  conducts  its master
servicing and securities  administration services  at its  offices in  Columbia,
Maryland.  Its address  there is 11000  Broken Land  Parkway, Columbia, Maryland
21044-3662 and its telephone number is (410) 884-2000.
 
                           THE MORTGAGE LOAN PROGRAMS
 
MORTGAGE LOAN PRODUCTION SOURCES
 
    Norwest Mortgage  conducts  a  significant  portion  of  its  mortgage  loan
originations  through more than 700 loan  production offices (the "Loan Stores")
located throughout all 50 states.  Norwest Mortgage also conducts a  significant
portion of its mortgage loan originations through centralized production offices
located   in  Springfield,   Illinois,  Frederick,   Maryland  and  Minneapolis,
Minnesota. At the latter locations,  Norwest Mortgage receives applications  for
home  mortgage  loans on  toll-free telephone  numbers that  can be  called from
anywhere in the United States.
 
    The following  are  Norwest  Mortgage's primary  sources  of  mortgage  loan
originations: (i) direct contact with prospective borrowers (including borrowers
with mortgage loans currently serviced by Norwest Mortgage or borrowers referred
by  borrowers with mortgage loans currently  serviced by Norwest Mortgage), (ii)
referrals by realtors, other real estate professionals and prospective borrowers
to the  Loan  Stores, (iii)  referrals  from selected  corporate  clients,  (iv)
referrals  from  the  private  mortgage banking  group,  a  division  of Norwest
Funding, Inc.,  which  specializes in  mortgage  loans with  original  principal
balances  in excess of the limits of  FNMA and FHLMC, (v) several joint ventures
into which  Norwest  Mortgage,  through its  wholly  owned  subsidiary,  Norwest
Mortgage Ventures, Inc., has entered with realtors and banking institutions (the
"Joint Ventures") and (vi) referrals from mortgage brokers and similar entities.
In  addition to  its own mortgage  loan originations,  Norwest Mortgage acquires
qualifying mortgage loans from other unaffiliated originators
("Correspondents"). See " -- Acquisition of Mortgage Loans from  Correspondents"
below.  The relative contribution of each of these sources to Norwest Mortgage's
business, measured by  the volume of  loans generated, tends  to fluctuate  over
time.
 
                                       20
<PAGE>
    Norwest  Mortgage Ventures, Inc. owns at least a 50% interest in each of the
Joint Ventures, with the remaining ownership  interest in each being owned by  a
realtor  or  a banking  institution  having significant  contact  with potential
borrowers. Mortgage loans that are originated by Joint Ventures in which Norwest
Mortgage's partners are realtors are  generally made to finance the  acquisition
of properties marketed by such Joint Venture partners. Applications for mortgage
loans  originated through  Joint Ventures are  generally taken  by Joint Venture
employees and underwritten by Norwest  Mortgage in accordance with its  standard
underwriting criteria. Such mortgage loans are then closed by the Joint Ventures
in  their own  names and subsequently  purchased by Norwest  Mortgage or Norwest
Funding.
 
    Norwest Mortgage  may  directly  contact  prospective  borrowers  (including
borrowers  with mortgage loans  currently serviced by  Norwest Mortgage) through
general and targeted solicitations. Such  solicitations are made through  direct
mailings,  mortgage  loan  statement  inserts and  television,  radio  and print
advertisements and by telephone.  Norwest Mortgage's targeted solicitations  may
be  based on characteristics such as  the borrower's mortgage loan interest rate
or payment history and  the geographic location of  the mortgaged property.  See
"Prepayment and Yield Considerations" herein.
 
    A  majority  of  Norwest  Mortgage's corporate  clients  are  companies that
sponsor relocation programs  for their  employees and in  connection with  which
Norwest  Mortgage provides mortgage financing. Eligibility for a relocation loan
is based, in  general, on an  employer's providing financial  assistance to  the
relocating  employee in  connection with  a job-required  move. Although Subsidy
Loans are  typically generated  through such  corporate-sponsored programs,  the
assistance extended by the employer need not necessarily take the form of a loan
subsidy.  (Not all  relocation loans are  generated by  Norwest Mortgage through
referrals from its corporate clients; some  relocation loans are generated as  a
result  of referrals from  mortgage brokers and similar  entities and others are
generated through Norwest  Mortgage's acquisition of  mortgage loans from  other
originators.)  Also  among  Norwest  Mortgage's  corporate  clients  are various
professional associations. These  associations, as well  as the other  corporate
clients,  promote the availability of a broad range of Norwest Mortgage mortgage
products to their members or  employees, including refinance loans,  second-home
loans and investment-property loans.
 
ACQUISITION OF MORTGAGE LOANS FROM CORRESPONDENTS
 
    In  order to qualify  for participation in  Norwest Mortgage's mortgage loan
purchase programs, lending institutions must  (i) meet and maintain certain  net
worth  and other financial standards, (ii) demonstrate experience in originating
residential  mortgage  loans,  (iii)  meet  and  maintain  certain   operational
standards,  (iv) evaluate each loan offered  to Norwest Mortgage for consistency
with Norwest  Mortgage's underwriting  guidelines  or the  standards of  a  Pool
Insurer and represent that each loan was underwritten in accordance with Norwest
Mortgage  standards  or the  standards of  a  Pool Insurer  and (v)  utilize the
services of qualified appraisers.
 
    The contractual arrangements with Correspondents may involve the  commitment
by  Norwest Mortgage to accept  delivery of a certain  dollar amount of mortgage
loans over a period of time; this commitment may be satisfied either by delivery
of mortgage  loans  one  at  a  time  or  in  multiples  as  aggregated  by  the
Correspondent. The contractual arrangements with Correspondents may also involve
the  delegation of all underwriting functions to such Correspondents ("Delegated
Underwriting"), which  will  result  in  Norwest  Mortgage  not  performing  any
underwriting  functions prior to acquisition of  the loan but instead relying on
such originators' representations, and Norwest Mortgage's post-purchase  reviews
of  samplings of  mortgage loans  acquired from  such originators  regarding the
originators' compliance with Norwest  Mortgage's underwriting standards. In  all
instances,  however, acceptance by Norwest Mortgage is contingent upon the loans
being found to satisfy Norwest Mortgage's program standards or the standards  of
a  Pool Insurer. Norwest Mortgage may  also acquire portfolios of seasoned loans
in negotiated transactions.
 
                                       21
<PAGE>
MORTGAGE LOAN UNDERWRITING
 
    NORWEST MORTGAGE UNDERWRITING.   Norwest  Mortgage's underwriting  standards
are  applied by  or on  behalf of Norwest  Mortgage to  evaluate the applicant's
credit standing and ability to repay the loan, as well as the value and adequacy
of the mortgaged property as  collateral. The underwriting standards that  guide
the  determination represent a balancing of  several factors that may affect the
ultimate recovery of the loan amount, including, among others, the amount of the
loan, the ratio of the loan amount to the property value (i.e., the lower of the
appraised  value  of  the  mortgaged  property  and  the  purchase  price),  the
borrower's   means  of  support  and  the  borrower's  credit  history.  Norwest
Mortgage's guidelines for underwriting may vary  according to the nature of  the
borrower  or the type of loan,  since differing characteristics may be perceived
as presenting different levels of risk. With respect to certain Mortgage  Loans,
the  originators  of  such loans  may  have contracted  with  unaffiliated third
parties to perform the underwriting process. Except as described below, Mortgage
Loans were underwritten by or on behalf  of Norwest Mortgage or, in the case  of
PHMC  Mortgage  Loans,  PHMC, generally  in  accordance with  the  standards and
procedures described herein.
 
    Norwest Mortgage utilizes  various systems of  credit scoring as  a tool  to
supplement  the  mortgage  loan  underwriting  process.  Credit  scoring assists
Norwest Mortgage in the mortgage loan approval process by providing  consistent,
objective  measures  of  borrower  credit and  loan  attributes.  Such objective
measures are used to  evaluate loan applications and  assign each application  a
"Credit  Score." The Credit Score is used  to determine the type of underwriting
process  and  which  level  of  underwriter  will  review  the  loan  file.  For
transactions  which are determined  to be low-risk  transactions, based upon the
Credit Score  and  other  parameters (including  the  mortgage  loan  production
source),  the lowest underwriting authority  is generally required. For moderate
and higher risk transactions, higher level underwriters and a full review of the
mortgage file are generally required.  Borrowers who have a satisfactory  Credit
Score  (based upon the mortgage loan production source) are generally subject to
streamlined credit  review  (which relies  on  the credit  scoring  process  for
various  elements of the  underwriting assessments). Such  borrowers may also be
eligible for  a limited  documentation  program and  are generally  permitted  a
greater latitude in the application of borrower debt-to-income ratios.
 
    With respect to all mortgage loans underwritten by Norwest Mortgage, Norwest
Mortgage's  underwriting of  a mortgage  loan may be  based on  data obtained by
parties other than Norwest Mortgage that  are involved at various stages in  the
mortgage  origination  or  acquisition  process.  This  typically  occurs  under
circumstances in which loans are subject  to more than one approval process,  as
when correspondents, certain mortgage brokers or similar entities that have been
approved  by Norwest  Mortgage to  process loans  on its  behalf, or independent
contractors hired by Norwest  Mortgage to perform  underwriting services on  its
behalf   ("contract  underwriters")  make  initial   determinations  as  to  the
consistency  of  loans  with  Norwest  Mortgage  underwriting  guidelines.   The
underwriting  of  mortgage  loans acquired  by  Norwest Mortgage  pursuant  to a
Delegated Underwriting arrangement with a Correspondent is not reviewed prior to
acquisition of the mortgage loan by Norwest Mortgage although the mortgage  loan
file  is  reviewed by  Norwest Mortgage  to confirm  that certain  documents are
included  in   the  file.   Instead,  Norwest   Mortgage  relies   on  (i)   the
Correspondent's  representations  that such  mortgage  loan was  underwritten in
accordance  with   Norwest  Mortgage's   underwriting  standards   and  (ii)   a
post-purchase  review of  a sampling  of all  mortgage loans  acquired from such
originator. In  addition, in  order to  be eligible  to sell  mortgage loans  to
Norwest   Mortgage  pursuant  to  a   Delegated  Underwriting  arrangement,  the
originator must meet certain requirements including, among other things, certain
quality, operational and financial guidelines.
 
    A prospective borrower applying for a mortgage loan is required to  complete
a detailed application. The loan application elicits pertinent information about
the  applicant,  with particular  emphasis on  the applicant's  financial health
(assets, liabilities, income and expenses), the property being financed and  the
type of loan desired. A self-employed applicant may be required to submit his or
her  most  recent  signed federal  income  tax  returns. With  respect  to every
applicant, credit  reports  are  obtained from  commercial  reporting  services,
summarizing the applicant's credit history with
 
                                       22
<PAGE>
merchants  and lenders.  Significant unfavorable credit  information reported by
the applicant or a credit reporting  agency must be explained by the  applicant.
The  credit  review  process  generally  is  streamlined  for  borrowers  with a
qualifying Credit Score.
 
    Verifications of  employment, income,  assets or  mortgages may  be used  to
supplement   the  loan  application   and  the  credit   report  in  reaching  a
determination as  to  the  applicant's  ability  to  meet  his  or  her  monthly
obligations  on the proposed mortgage loan, as well as his or her other mortgage
payments (if  any),  living  expenses  and  financial  obligations.  A  mortgage
verification  involves  obtaining information  regarding the  borrower's payment
history with  respect to  any existing  mortgage the  applicant may  have.  This
verification  is accomplished  by either  having the  present lender  complete a
verification of mortgage form, evaluating  the information on the credit  report
concerning   the  applicant's   payment  history  for   the  existing  mortgage,
communicating, either  verbally  or in  writing,  with the  applicant's  present
lender or analyzing cancelled checks provided by the applicant. Verifications of
income,  assets or  mortgages may  be waived  under certain  programs offered by
Norwest Mortgage,  but Norwest  Mortgage's underwriting  guidelines require,  in
most  instances, a verbal or written  verification of employment to be obtained.
In some cases, in lieu of  a verification of employment, employment  information
may  be obtained  through V.I.E., Inc.,  an affiliate of  Norwest Mortgage, that
obtains employment  data  from  state  unemployment  insurance  departments.  In
addition,  the  loan  applicant may  be  eligible  for a  loan  approval process
permitting limited  documentation. The  above referenced  reduced  documentation
options   and  waivers  limit  the  amount  of  documentation  required  for  an
underwriting decision and have the effect of increasing the relative  importance
of  the credit report  and the appraisal.  Documentation requirements vary based
upon a number of factors, including the  purpose of the loan, the amount of  the
loan,  the ratio of the loan amount to  the property value and the mortgage loan
production source. Norwest Mortgage accepts alternative methods of verification,
in those instances where  verifications are part  of the underwriting  decision;
for  example, salaried  income may  be substantiated either  by means  of a form
independently prepared and signed by the applicant's employer or by means of the
applicant's most recent paystub and W-2. In cases where two or more persons have
jointly applied for a mortgage  loan, the gross incomes  and expenses of all  of
the applicants, including nonoccupant co-mortgagors, are combined and considered
as a unit.
 
    In general, all borrowers applying for loans generally must demonstrate that
the ratio of their total monthly housing debt to their monthly gross income, and
the  ratio of  their total  monthly debt  to their  monthly gross  income do not
exceed certain maximum levels. Such maximum levels vary depending on a number of
factors including Loan-to-Value Ratio, a borrower's credit history, a borrower's
liquid  net  worth,  the  potential  of  a  borrower  for  continued  employment
advancement  or income growth, the ability  of the borrower to accumulate assets
or to devote a greater portion of income to basic needs such as housing expense,
a borrower's  Credit Score  and  the type  of loan  for  which the  borrower  is
applying.  These calculations  are based  on the  amortization schedule  and the
interest rate of the related loan, with  each ratio being computed on the  basis
of  the  proposed  monthly  mortgage payment.  In  the  case  of adjustable-rate
mortgage loans,  the  interest rate  used  to determine  a  mortgagor's  monthly
payment  for  purposes of  such ratios  may,  in certain  cases, be  the initial
mortgage interest rate or another interest rate, which, in either case, is lower
than the sum of the  index rate that would  have been applicable at  origination
plus  the applicable  margin. In evaluating  applications for  Subsidy Loans and
Buy-Down Loans, such ratios are determined by including in the applicant's total
monthly housing expense  and total  monthly debt the  proposed monthly  mortgage
payment  reduced by the amount  expected to be applied  on a monthly basis under
the related subsidy agreement  or buy-down agreement or,  in certain cases,  the
mortgage payment that would result from an interest rate lower than the Mortgage
Interest Rate but higher than the effective rate to the mortgagor as a result of
the  subsidy  agreement or  the buy-down  agreement. See  "The Trust  Estates --
Mortgage Loans."  Secondary  financing  is permitted  on  mortgage  loans  under
certain  circumstances.  In  those  cases, the  payment  obligations  under both
primary and secondary financing are included  in the computation of the  housing
debt-to-income  ratios, and the  combined amount of  primary and secondary loans
will be  used  to calculate  the  combined loan-to-value  ratio.  Any  secondary
financing  permitted will  generally mature  prior to  the maturity  date of the
related mortgage loan. In
 
                                       23
<PAGE>
evaluating an application with respect to a "non-owner-occupied" property, which
Norwest Mortgage defines as a property leased to a third party by its owner  (as
distinct   from  a  "second   home,"  which  Norwest   Mortgage  defines  as  an
owner-occupied,  non-rental  property   that  is  not   the  owner's   principal
residence), Norwest Mortgage will include projected rental income net of certain
mortgagor  obligations and other assumed expenses  or loss from such property to
be included in  the applicant's monthly  gross income or  total monthly debt  in
calculating  the  foregoing  ratios.  A  mortgage  loan  secured  by  a  two- to
four-family Mortgaged Property is considered to be an owner-occupied property if
the borrower occupies  one of the  units; rental  income on the  other units  is
generally  taken into account in evaluating  the borrower's ability to repay the
mortgage loan.
 
    Mortgage Loans will not  generally have had  at origination a  Loan-to-Value
Ratio  in excess of 95%.  However, if so specified  in the applicable Prospectus
Supplement, Mortgage  Loans  that had  Loan-to-Value  Ratios at  origination  in
excess  of 95% may  be included in  the related Trust  Estate. The Loan-to-Value
Ratio is the ratio, expressed  as a percentage, of  the principal amount of  the
Mortgage  Loan at origination  to the lesser  of (i) the  appraised value of the
related Mortgaged  Property, as  established  by an  appraisal obtained  by  the
originator  generally no  more than four  months prior to  origination (or, with
respect to newly  constructed properties, no  more than twelve  months prior  to
origination),  or (ii) the sale price for  such property. In some instances, the
Loan-to-Value Ratio  may be  based on  an  appraisal that  was obtained  by  the
originator  more  than four  months prior  to origination,  provided that  (i) a
recertification of  the original  appraisal is  obtained and  (ii) the  original
appraisal  was obtained no more than twelve months prior to origination. For the
purpose of calculating the Loan-to-Value Ratio of any Mortgage Loan that is  the
result  of  the  refinancing  (including a  refinancing  for  "equity  take out"
purposes) of  an existing  mortgage loan,  the appraised  value of  the  related
Mortgaged Property is generally determined by reference to an appraisal obtained
in  connection with the origination of  the replacement loan. In connection with
certain  of  its  mortgage  originations,  Norwest  Mortgage  currently  obtains
appraisals  through its affiliate, Value Information Technology, Inc. Appraisals
used in connection  with the origination  of the PHMC  Mortgage Loans  generally
were obtained by PHMC through its affiliate, Lender's Service, Inc.
 
    No  assurance  can be  given that  values of  the Mortgaged  Properties have
remained or will remain at  the levels which existed  on the dates of  appraisal
(or,  where applicable, recertification of value) of the related Mortgage Loans.
The appraisal  of any  Mortgaged Property  reflects the  individual  appraiser's
judgment as to value, based on the market values of comparable homes sold within
the  recent past in comparable nearby locations and on the estimated replacement
cost. The appraisal relates both  to the land and to  the structure; in fact,  a
significant  portion  of the  appraised  value of  a  Mortgaged Property  may be
attributable to the value of the land  rather than to the residence. Because  of
the  unique  locations and  special  features of  certain  Mortgaged Properties,
identifying comparable  properties in  nearby locations  may be  difficult.  The
appraised  values of such Mortgaged Properties will be based to a greater extent
on adjustments made  by the  appraisers to  the appraised  values of  reasonably
similar  properties  rather  than  on  objectively  verifiable  sales  data.  If
residential real  estate  values generally  or  in particular  geographic  areas
decline  such  that  the outstanding  balances  of  the Mortgage  Loans  and any
secondary financing on  the Mortgaged  Properties in a  particular Trust  Estate
become  equal to or greater than the values of the related Mortgaged Properties,
the actual rates of delinquencies, foreclosures and losses could be higher  than
those  now generally experienced in the  mortgage lending industry and those now
experienced in  Norwest Mortgage's  servicing portfolios.  In addition,  adverse
economic  conditions generally, in particular geographic areas or industries, or
affecting particular segments  of the  borrowing community  (such as  mortgagors
relying  on commission  income and  self-employed mortgagors)  and other factors
which may or  may not affect  real property values,  including the purposes  for
which the Mortgage Loans were made and the uses of the Mortgaged Properties, may
affect  the timely payment by mortgagors  of scheduled payments of principal and
interest  on  the  Mortgage  Loans   and,  accordingly,  the  actual  rates   of
delinquencies,  foreclosures and  losses with respect  to any  Trust Estate. See
"Prepayment and Yield Considerations -- Weighted
 
                                       24
<PAGE>
Average Life of  Certificates" herein. To  the extent that  such losses are  not
covered  by the  methods of credit  support or the  insurance policies described
herein, they  will  be  borne by  holders  of  the Certificates  of  the  Series
evidencing interests in such Trust Estate.
 
    In  general,  Norwest  Mortgage  does  not  originate  mortgage  loans  with
Loan-to-Value Ratios  in excess  of  80% unless  primary mortgage  insurance  is
obtained.  Loans  with Loan-to-Value  Ratios exceeding  80%  may be  approved if
primary mortgage  insurance  is  obtained  from  an  approved  primary  mortgage
insurance  company. In such cases, the excess over 75% (or such lower percentage
as Norwest  Mortgage may  require at  origination) will  be covered  by  primary
mortgage  insurance until the  unpaid principal balance of  the Mortgage Loan is
reduced to an  amount that will  result in  a Loan-to-Value Ratio  less than  or
equal  to 80%. With respect to the PHMC Mortgage Loans, however, PHMC in certain
instances  did  not  require  primary  mortgage  insurance  on  loans  that  had
Loan-to-Value   Ratios  exceeding   80%.  Only   primary  residences  (excluding
cooperatives) were eligible for this program.  Each qualifying loan was made  at
an  interest  rate  that  was  higher  than the  rate  would  have  been  if the
Loan-to-Value Ratio  was  80% or  less  or  if primary  mortgage  insurance  was
obtained.
 
    Except  as described below,  Mortgage Loans will generally  be covered by an
appropriate  standard  form  American  Land  Title  Association  ("ALTA")  title
insurance  policy,  or  a  substantially similar  policy  or  form  of insurance
acceptable to the Federal National Mortgage Association ("FNMA") or the  Federal
Home  Loan  Mortgage  Corporation  ("FHLMC").  Certain  Mortgage  Loans ("T.O.P.
Loans") originated by Norwest Mortgage or Norwest Funding in connection with the
"Title Option  Plus"  program  are  not covered  by  title  insurance  policies,
although  title searches  are performed  in connection  with the  origination of
T.O.P. Loans  by American  Land Title  Company, Inc.,  an affiliate  of  Norwest
Mortgage.  The Seller  will represent  and warrant to  the Trustee  of any Trust
Estate that the Mortgaged Property related to each Mortgage Loan (including each
T.O.P. Loan) is  free and clear  of all encumbrances  and liens having  priority
over  the  first  lien  of  the related  Mortgage,  subject  to  certain limited
exceptions as set forth below under "-- Representations and Warranties." However
in the event that a lien senior to the lien of the Mortgage related to a  T.O.P.
Loan that is contained in the Trust Estate for any Series is found to exist, the
sole  recourse  of the  Trustee will  be against  the Seller  for breach  of its
representation and  warranty. The  Trustee will  not have  recourse against  any
title insurance company or other party.
 
    Where  permitted by law, Norwest Mortgage generally requires that a borrower
include in each monthly payment a portion of the real estate taxes, assessments,
primary mortgage insurance  (if applicable), and  hazard insurance premiums  and
other  similar items with respect to the related mortgage loan. Norwest Mortgage
may, however,  on a  case-by-case  basis, in  its  discretion not  require  such
advance  payments  for certain  Mortgage Loans,  based on  an evaluation  of the
borrowers' ability to pay such taxes and charges as they become due.
 
    POOL CERTIFICATION UNDERWRITING.  If specified in the applicable  Prospectus
Supplement,  certain of  the Mortgage Loans  will have been  reviewed by General
Electric Mortgage Insurance Corporation ("GEMICO"), United Guaranty  Residential
Insurance  Company  ("UGRIC")  or  a  similar  entity  (collectively,  the "Pool
Insurers") to  determine  conformity,  in the  aggregate,  with  such  company's
respective  credit, appraisal and underwriting guidelines. Norwest Mortgage will
not have  underwritten  such  Mortgage  Loans. Neither  GEMICO  nor  UGRIC  have
underwritten  any  of  the  Mortgage  Loans  for  compliance  with  any investor
guidelines.
 
    Based on information  provided by the  relevant company, as  a condition  to
eligibility of a Mortgage Loan for inclusion in a mortgage pool to be insured by
GEMICO  or UGRIC, the loan originator generally  will be required to comply with
the following procedures, although exceptions may  be made if permitted by  such
company.
 
    Initially,  a  prospective borrower  must  fill out  a  detailed application
providing pertinent credit  information. The  loan originator  obtains a  credit
report,   which  summarizes  the  prospective  borrower's  credit  history  with
merchants and lenders  and any record  of bankruptcy, or  other pertinent  legal
history.  In addition, a  verification of employment  for the last  two years is
made from either the
 
                                       25
<PAGE>
applicant's employer  or a  Form  W-2 for  the most  recent  two years  and  the
applicant's  most  recent  pay  stub. If  an  applicant  is  self-employed, such
applicant submits copies of signed tax returns with all schedules for the  prior
two years together with a current year-to-date profit and loss statement and any
other  documentation  deemed  necessary.  Rental  income  used  to  qualify  the
applicant is  verified either  by  lease agreements  or  by the  borrower's  tax
returns.  In the case  of refinancings, the loan  originator must require, among
other things, that there has not been more than one delinquency in the prior  12
months nor, in the case of mortgage loans reviewed by GEMICO, any delinquency in
the past 90 days on the prior mortgage loan.
 
    In  determining the  adequacy of  the Mortgaged  Property as  collateral, an
independent appraisal must be  made of each  property considered for  financing.
Each  appraiser  must be  selected in  accordance with  predetermined guidelines
established for appraisers. The  appraiser is required  to inspect the  property
and  verify that it is in good condition and that construction, if new, has been
completed. The appraisal is  based on the market  value of comparable homes.  No
appraisal  more than six months old will  be accepted by GEMICO and no appraisal
more than 120 days old will be accepted by UGRIC.
 
    Once all applicable employment, credit and property information is received,
a determination must be made by the loan originator (and confirmed on review  by
GEMICO  or UGRIC) as to whether  the prospective borrower has sufficient monthly
income to meet (i) the monthly payment obligations on the proposed mortgage loan
(including principal and interest payments, real estate taxes, insurance on  the
subject  property, and homeowners' association  dues and secondary financing, if
any),  and  (ii)  the  aggregate  of  the  foregoing  and  all  other  financial
obligations  not expected  to be fully  repaid within  the next 10  months. As a
general rule, GEMICO  and UGRIC require  the ratio of  a prospective  borrower's
debt,  as described in clauses (i) and  (ii) above, to such borrower's income to
be 33% and  38%, respectively for  fixed rate, fixed  payment loans. The  ratios
required  for adjustable rate loans are slightly  lower. The general rule may be
varied, and higher debt-to-income ratios may be permitted, in appropriate  cases
characterized by lower Loan-to-Value Ratios or other favorable factors.
 
    In  some  special  cases, GEMICO  and  UGRIC  may underwrite  loans  under a
"limited  documentation"   program.  With   respect  to   such  loans,   limited
investigation   into  the  borrower's  credit  history  and  income  profile  is
undertaken by the originator and such loans may be underwritten primarily on the
basis of  an appraisal  of the  mortgaged property  and Loan-to-Value  Ratio  on
origination.  Thus,  if  the Loan-to-Value  Ratio  is less  than  the percentage
required under standard guidelines, the originator may forego certain aspects of
the review  relating to  monthly income,  and,  in the  case of  mortgage  loans
reviewed  by GEMICO,  traditional ratios of  monthly or total  expenses to gross
income may not be  applied. At a minimum,  a limited documentation program  must
require  a  loan  application,  a  credit  report,  an  appraisal  acceptable to
FNMA/FHLMC  performed  by  an  independent  appraiser,  and  a  verification  of
downpayment  or three months of bank statements. The maximum Loan-to-Value Ratio
allowed under any limited documentation program underwritten by GEMICO and UGRIC
is 70%.  UGRIC's  "limited  documentation" program  is  limited  exclusively  to
self-employed borrowers.
 
    For  any rate  or term  refinance of  a mortgage  loan, or  conversion of an
adjustable rate mortgage  loan, where GEMICO  or UGRIC has  already insured  the
prior  loan, GEMICO or  UGRIC may have determined  a loan's insurability without
reviewing updated  credit or  collateral information.  In the  case of  seasoned
loans, GEMICO or UGRIC may have determined a loan's insurability by performing a
more limited credit and collateral review.
 
    The  foregoing should not be taken as  a full and complete discussion of all
of the procedures undertaken in connection with a particular underwriting.  Both
GEMICO  and UGRIC consider various other  factors including, but not limited to,
reviewing sales contracts,  verifying deposits  and other  assets and  examining
additional supporting documentation in certain instances such as divorce decrees
and   separation  agreements.  Investors  should  consult  the  particular  Pool
Insurer's underwriting guidelines  for more specific  and complete  requirements
regarding  underwriting standards.  Furthermore, the  underwriting process often
results in certain compensating factors being considered to offset the existence
of other negative factors in a loan file.
 
                                       26
<PAGE>
    The use  of pool  certification underwriting  by a  Pool Insurer  in no  way
indicates  that  the  related  Certificates or  Mortgage  Loans  are  insured or
guaranteed  under  a  mortgage  pool  insurance  policy  unless  the  applicable
Prospectus Supplement so specifies.
 
REPRESENTATIONS AND WARRANTIES
 
    In  connection with the transfer of the Mortgage Loans related to any Series
by the  Seller to  the Trust  Estate,  the Seller  will generally  make  certain
representations  and warranties regarding  the Mortgage Loans.  In certain cases
where the Seller acquired some or all of the Mortgage Loans related to a  Series
from  a Correspondent, if so indicated  in the applicable Prospectus Supplement,
the Seller may, rather than itself making representations and warranties,  cause
the  representations and warranties made by the Correspondent in connection with
its sale of Mortgage Loans to Norwest Mortgage or Norwest Funding to be assigned
to the  Trust Estate.  In such  cases, the  Correspondent's representations  and
warranties may have been made as of a date prior to the date of execution of the
Pooling  and Servicing  Agreement. Unless  otherwise provided  in the applicable
Prospectus Supplement, such representations and warranties (whether made by  the
Seller  or another party)  will generally include the  following with respect to
the Mortgage Loans, or each Mortgage Loan, as the case may be:
 
           (i)
           the information set forth in the schedule of Mortgage Loans appearing
           as an exhibit to such Pooling  and Servicing Agreement is correct  in
    all material respects at the date or dates respecting which such information
    is furnished as specified therein;
 
          (ii)
           immediately  prior to the transfer and assignment contemplated by the
           Pooling and Servicing  Agreement, the  Seller is 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
           related Mortgaged Property,  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 Mortgaged Property is
    a condominium unit, any lien for common charges permitted by statute or home
    owners 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 Trustee or a custodian with, any Mortgage establishes in the Seller a
    valid  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  in  any material
    respect; satisfied, cancelled  or subordinated the  Mortgage or the  related
    Mortgage  Note in whole  or in part;  or 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 reflected in  a document  delivered by  the Seller  to the  Trustee or  a
    custodian together with the related Mortgage;
 
           (v)
           all  taxes, governmental assessments,  insurance premiums, and water,
           sewer and municipal charges previously due and owing have been  paid,
    or  an escrow of  funds in an amount  sufficient to pay  for every such item
    which remains unpaid has  been established to the  extent permitted by  law;
    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  Buy-Down  Loan or  Subsidy Loan  arrangement), for  the payment  of any
    amount required by the Mortgage, except for
 
                                       27
<PAGE>
    interest  accruing from  the date  of the related  Mortgage Note  or date of
    disbursement of the Mortgage Loan proceeds, whichever is later, to the  date
    which  precedes by  30 days  the first Due  Date under  the related Mortgage
    Note;
 
          (vi)
           the Mortgaged Property  is undamaged  by water,  fire, earthquake  or
           earth   movement,  windstorm,  flood,  tornado  or  similar  casualty
    (excluding casualty  from  the presence  of  hazardous wastes  or  hazardous
    substances, as to which the Seller makes no representation), 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 Trustee by the Seller;
 
        (viii)
           except  for  Mortgage Loans  secured by  shares in  cooperatives, the
           Mortgaged Property consists of  a fee simple  or leasehold 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 an applicable 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 13 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
 
                                       28
<PAGE>
    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 date of the
    Pooling and Servicing Agreement;
 
          (xv)
           the Mortgage Loan (except a T.O.P. Loan as described above under  "--
           Mortgage   Loan  Underwriting"  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 ALTA 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 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 Trustee and 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 any 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; and the Seller has  not
    waived   any  default,  breach,  violation  or  event  of  acceleration;  no
    foreclosure action is threatened or has  been commenced with respect to  the
    Mortgage Loan;
 
                                       29
<PAGE>
       (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 such 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 360 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  single family residential property which  may
    include a detached home, townhouse, condominium unit, unit in a planned unit
    development or a leasehold interest with respect to any of the foregoing or,
    in  the case of Mortgage Loans secured  by shares of cooperatives, leases or
    occupancy agreements;
 
       (xxiii)
           with respect  to  each Buy-Down  Loan,  the funds  deposited  in  the
           Buy-Down  Fund, if  any, will  be sufficient,  together with interest
    thereon at  the rate  customarily  received by  the  Seller on  such  funds,
    compounded  monthly,  and adding  the  amounts required  to  be paid  by the
    mortgagor, to make the  scheduled payments stated in  the Mortgage Note  for
    the term of the buy-down agreement; and
 
        (xxiv)
           each  Mortgage Loan is  a "Qualified Mortgage"  within the meaning of
           Section 860G of the Code.
 
    No representations or warranties are made  by the Seller or any other  party
as  to the absence or effect of  hazardous wastes or hazardous substances on any
of the Mortgaged Properties or  on the lien of any  Mortgage or with respect  to
the  absence or effect of fraud in the origination of any Mortgage Loan, and any
loss or  liability resulting  from  the presence  or  effect of  such  hazardous
wastes,    hazardous   substances   or   fraud   will   be   borne   solely   by
Certificateholders.  See  "Certain  Legal  Aspects  of  the  Mortgage  Loans  --
Environmental Considerations" below.
 
    See  "The Pooling and Servicing Agreement -- Assignment of Mortgage Loans to
the Trustee" for a description of  the limited remedies available in  connection
with breaches of the foregoing representations and warranties.
 
                        DESCRIPTION OF THE CERTIFICATES
 
GENERAL
 
    Each  Series of Certificates will include one or more Classes, each of which
may be  divided  into two  or  more Subclasses.  Any  references herein  to  the
characteristics of a Class of Certificates may also describe the characteristics
of   a  Subclass  of  Certificates.  In  addition,  any  Class  or  Subclass  of
Certificates may consist of two or more non-severable components, each of  which
may  exhibit any of the principal  or interest payment characteristics described
herein with respect to a Class of Certificates. A Series may include one or more
Classes  of  Certificates  entitled,  to  the  extent  of  funds  available,  to
 
                                       30
<PAGE>
(i)  principal and  interest distributions  in respect  of the  related Mortgage
Loans, (ii)  principal  distributions,  with no  interest  distributions,  (iii)
interest  distributions,  with no  principal  distributions or  (iv)  such other
distributions as are described in the applicable Prospectus Supplement.
 
    Each Series  of  Certificates will  be  issued  pursuant to  a  Pooling  and
Servicing  Agreement (the "Pooling  and Servicing Agreement")  among the Seller,
Norwest Bank, as the  Master Servicer, and the  Trustee named in the  applicable
Prospectus  Supplement. An illustrative form  of Pooling and Servicing Agreement
has been  filed  as an  exhibit  to the  Registration  Statement of  which  this
Prospectus is a part. The following summaries describe certain provisions common
to  the Certificates and to each  Pooling and Servicing Agreement. The summaries
do not purport to  be complete and  are subject to, and  are qualified in  their
entirety  by reference to,  all of the  provisions of the  Pooling and Servicing
Agreement  for  each  Series  of  Certificates  and  the  applicable  Prospectus
Supplement.  Wherever particular  sections or defined  terms of  the Pooling and
Servicing Agreement are referred to, such sections or defined terms are  thereby
incorporated  herein  by  reference  from  the  form  of  Pooling  and Servicing
Agreement filed as an exhibit to the Registration Statement.
 
    Unless  otherwise  specified  in   the  applicable  Prospectus   Supplement,
distributions  to  Certificateholders  of  all  Series  (other  than  the  final
distribution in retirement of the Certificates) will be made by check mailed  to
the  address of  the person  entitled thereto (which  in the  case of Book-Entry
Certificates will be  DTC) as  it appears  on the  certificate register,  except
that,  with respect to  any holder of  a Certificate evidencing  not less than a
certain minimum denomination set forth in the applicable Prospectus  Supplement,
distributions  will be  made by  wire transfer  in immediately  available funds,
provided that the Master Servicer  or the Paying Agent  acting on behalf of  the
Master  Servicer shall have been  furnished with appropriate wiring instructions
not less than seven  business days prior to  the related Distribution Date.  The
final  distribution  in  retirement  of  Certificates  will  be  made  only upon
presentation  and  surrender  of  the  Certificates  at  the  office  or  agency
maintained  by the Trustee or other entity for such purpose, as specified in the
final distribution notice to Certificateholders.
 
    Each Series  of  Certificates  will represent  ownership  interests  in  the
related  Trust Estate. An election may be made to treat the Trust Estate (or one
or more  segregated  pools  of assets  therein)  with  respect to  a  Series  of
Certificates  as a REMIC. If such an  election is made, such Series will consist
of one or more Classes of  Certificates that will represent "regular  interests"
within   the  meaning  of  Code  Section   860G(a)(1)  (such  Class  or  Classes
collectively referred  to  as  the  "Regular Certificates")  and  one  Class  or
Subclass  of Certificates with respect to each  REMIC that will be designated as
the "residual  interest" within  the  meaning of  Code Section  860G(a)(2)  (the
"Residual  Certificates")  representing the  right  to receive  distributions as
specified in the  Prospectus Supplement  for such Series.  See "Certain  Federal
Income Tax Consequences" herein.
 
    The  Seller may sell certain Classes or  Subclasses of the Certificates of a
Series, including one or more Classes of Subordinated Certificates, in privately
negotiated transactions  exempt  from  registration under  the  Securities  Act.
Alternatively,  if  so specified  in a  Prospectus  Supplement relating  to such
Subordinated Certificates,  the Seller  may offer  one or  more Classes  of  the
Subordinated  Certificates  of a  Series by  means of  this Prospectus  and such
Prospectus Supplement.
 
DEFINITIVE FORM
 
    Certificates of a Series that  are issued in fully registered,  certificated
form  are  referred to  herein  as "Definitive  Certificates."  Distributions of
principal of, and interest on, the Definitive Certificates will be made directly
to holders  of Definitive  Certificates in  accordance with  the procedures  set
forth  in the Pooling and Servicing  Agreement. The Definitive Certificates of a
Series offered hereby and by means of the applicable Prospectus Supplements will
be transferable  and exchangeable  at the  office or  agency maintained  by  the
Trustee  or  such other  entity for  such  purpose set  forth in  the applicable
Prospectus Supplement.  No service  charge  will be  made  for any  transfer  or
exchange  of Definitive Certificates,  but the Trustee or  such other entity may
require payment  of a  sum sufficient  to cover  any tax  or other  governmental
charge in connection with such transfer or exchange.
 
                                       31
<PAGE>
    In  the event that an election is made  to treat the Trust Estate (or one or
more segregated pools  of assets therein)  as a REMIC,  the "residual  interest"
thereof  will  be issued  as a  Definitive Certificate.  No legal  or beneficial
interest in all  or any portion  of any "residual  interest" may be  transferred
without  the receipt by the transferor and the Trustee of an affidavit signed by
the transferee stating,  among other things,  that the transferee  (i) is not  a
disqualified organization within the meaning of Code Section 860E(e) or an agent
(including a broker, nominee, or middleman) thereof and (ii) understands that it
may  incur tax liabilities in excess of any cash flows generated by the residual
interest. Further,  the transferee  must  state in  the  affidavit that  it  (x)
historically  has paid its debts  as they have come due,  (y) intends to pay its
debts as they come  due in the  future and (z) intends  to pay taxes  associated
with  holding  the residual  interest as  they become  due. The  transferor must
certify to the Trustee that,  as of the time of  the transfer, it has no  actual
knowledge  that any of the statements made in the transferee affidavit are false
and no reason to  know that the  statements made by  the transferee pursuant  to
clauses  (x), (y)  and (z)  of the  preceding sentence  are false.  See "Certain
Federal Income Tax  Consequences --  Federal Income Tax  Consequences for  REMIC
Certificates -- Taxation of Residual Certificates -- Tax-Related Restrictions on
Transfer of Residual Certificates."
 
BOOK-ENTRY FORM
 
    Each  Class or Subclass of the Book-Entry Certificates of a Series initially
will be represented by one or more physical certificates registered in the  name
of  Cede  & Co.  ("Cede"), as  nominee of  DTC,  which will  be the  "holder" or
"Certificateholder" of  such Certificates,  as such  terms are  used herein.  No
person  acquiring an interest in a Book-Entry Certificate (a "Beneficial Owner")
will be entitled to receive a Definitive Certificate representing such  person's
interest  in the Book-Entry  Certificate, except as set  forth below. Unless and
until  Definitive  Certificates  are  issued  under  the  limited  circumstances
described  herein,  all references  to  actions taken  by  Certificateholders or
holders shall, in  the case  of the  Book-Entry Certificates,  refer to  actions
taken  by DTC  upon instructions from  its DTC Participants,  and all references
herein to distributions, notices,  reports and statements to  Certificateholders
or  holders  shall,  in  the  case  of  the  Book-Entry  Certificates,  refer to
distributions, notices, reports and statements to DTC or Cede, as the registered
holder of the Book-Entry Certificates, as  the case may be, for distribution  to
Beneficial Owners in accordance with DTC procedures.
 
    DTC is a limited purpose trust company organized under the laws of the State
of  New York, a member  of the Federal Reserve  System, a "clearing corporation"
within the  meaning of  the New  York Uniform  Commercial Code  and a  "clearing
agency"  registered pursuant  to Section 17A  of the Securities  Exchange Act of
1934, as  amended. DTC  was created  to hold  securities for  its  participating
organizations   ("DTC  Participants")  and  to   facilitate  the  clearance  and
settlement of securities transactions among DTC Participants through  electronic
book-entries,   thereby   eliminating  the   need   for  physical   movement  of
certificates. DTC Participants include securities brokers and dealers (which may
include any underwriter  identified in the  Prospectus Supplement applicable  to
any  Series), banks, trust companies  and clearing corporations. Indirect access
to the DTC system also is available to banks, brokers, dealers, trust  companies
and  other institutions that clear through  or maintain a custodial relationship
with  a  DTC   Participant,  either  directly   or  indirectly  ("Indirect   DTC
Participants").
 
    Under  the rules, regulations and procedures  creating and affecting DTC and
its operations (the "Rules"),  DTC is required to  make book-entry transfers  of
Book-Entry  Certificates among  DTC Participants  on whose  behalf it  acts with
respect to the Book-Entry Certificates and to receive and transmit distributions
of principal of and  interest on the  Book-Entry Certificates. DTC  Participants
and  Indirect DTC Participants  with which Beneficial  Owners have accounts with
respect to the Book-Entry Certificates similarly are required to make book-entry
transfers and receive and transmit such  payments on behalf of their  respective
Beneficial Owners.
 
    Beneficial Owners that are not DTC Participants or Indirect DTC Participants
but  desire  to purchase,  sell  or otherwise  transfer  ownership of,  or other
interests in, Book-Entry Certificates  may do so  only through DTC  Participants
and    Indirect    DTC    Participants.   In    addition,    Beneficial   Owners
 
                                       32
<PAGE>
will receive  all  distributions  of  principal and  interest  from  the  Master
Servicer,  or  a Paying  Agent on  behalf  of the  Master Servicer,  through DTC
Participants. DTC will forward such distributions to its DTC Participants, which
thereafter will forward them to Indirect DTC Participants or Beneficial  Owners.
Beneficial  Owners will not be recognized by  the Trustee or the Master Servicer
or any paying agent as Certificateholders, as  such term is used in the  Pooling
and Servicing Agreement, and Beneficial Owners will be permitted to exercise the
rights   of  Certificateholders  only   indirectly  through  DTC   and  its  DTC
Participants.
 
    Because DTC can only act on behalf  of DTC Participants, who in turn act  on
behalf  of  Indirect  DTC  Participants  and certain  banks,  the  ability  of a
Beneficial Owner to pledge Book-Entry  Certificates to persons or entities  that
do  not participate in the DTC system, or  to otherwise act with respect to such
Book-Entry  Certificates,  may  be  limited  due  to  the  lack  of  a  physical
certificate  for such Book-Entry  Certificates. In addition,  under a book-entry
format, Beneficial Owners may  experience delays in  their receipt of  payments,
since  distributions will be made  by the Master Servicer,  or a paying agent on
behalf of the Master Servicer, to Cede, as nominee for DTC.
 
    DTC has advised  the Seller that  it will  take any action  permitted to  be
taken  by a Certificateholder under the  Pooling and Servicing Agreement only at
the direction of one  or more DTC  Participants to whose  accounts with DTC  the
Book-Entry  Certificates are credited. Additionally,  DTC has advised the Seller
that it will take such actions  with respect to specified Voting Interests  only
at  the  direction  of and  on  behalf  of DTC  Participants  whose  holdings of
Book-Entry Certificates evidence such specified  Voting Interests. DTC may  take
conflicting  actions with  respect to  Voting Interests  to the  extent that DTC
Participants whose  holdings of  Book-Entry  Certificates evidence  such  Voting
Interests authorize divergent action.
 
    Neither  the  Seller, the  Master  Servicer nor  the  Trustee will  have any
responsibility for any  aspect of the  records relating to  or payments made  on
account of beneficial ownership interests of the Book-Entry Certificates held by
Cede,  as  nominee for  DTC, or  for maintaining,  supervising or  reviewing any
records relating to  such beneficial ownership  interests. In the  event of  the
insolvency  of DTC, a  DTC Participant or  an Indirect DTC  Participant in whose
name Book-Entry  Certificates  are registered,  the  ability of  the  Beneficial
Owners  of such  Book-Entry Certificates  to obtain  timely payment  and, if the
limits of applicable  insurance coverage by  the Securities Investor  Protection
Corporation  are exceeded or if such coverage is otherwise unavailable, ultimate
payment, of amounts distributable with  respect to such Book-Entry  Certificates
may be impaired.
 
    The Book-Entry Certificates will be converted to Definitive Certificates and
reissued  to Beneficial  Owners or  their nominees,  rather than  to DTC  or its
nominee, only if (i)  the Trustee is  advised in writing that  DTC is no  longer
willing  or able to  discharge properly its  responsibilities as depository with
respect to the  Book-Entry Certificates and  the Trustee is  unable to locate  a
qualified  successor,  (ii)  the  Master  Servicer,  at  its  option,  elects to
terminate the book-entry system through DTC  or (iii) after the occurrence of  a
dismissal  or resignation of the Master Servicer under the Pooling and Servicing
Agreement, Beneficial  Owners  representing not  less  than 51%  of  the  Voting
Interests  of the outstanding Book-Entry Certificates advise the Trustee through
DTC, in writing, that the continuation of a book-entry system through DTC (or  a
successor thereto) is no longer in the Beneficial Owners' best interest.
 
    Upon  the occurrence  of any  event described  in the  immediately preceding
paragraph, the Trustee will be required to notify all Beneficial Owners  through
DTC  Participants of the availability of Definitive Certificates. Upon surrender
by DTC of the physical certificates representing the Book-Entry Certificates and
receipt of instructions for re-registration, the Trustee will reissue the  Book-
Entry   Certificates  as  Definitive  Certificates  to  Beneficial  Owners.  The
procedures relating to payment on and transfer of Certificates initially  issued
as   Definitive  Certificates   will  thereafter   apply  to   those  Book-Entry
Certificates that have been reissued as Definitive Certificates.
 
                                       33
<PAGE>
DISTRIBUTIONS TO CERTIFICATEHOLDERS
 
    GENERAL.  On each Distribution Date, each holder of a Certificate of a Class
will be entitled to receive its Certificate's Percentage Interest of the portion
of the Pool Distribution Amount (as defined below) allocated to such Class.  The
undivided  percentage interest  (the "Percentage  Interest") represented  by any
Certificate of a  Subclass or  any Class in  distributions to  such Subclass  or
Class will be equal to the percentage obtained by dividing the initial principal
balance  (or  notional  amount) of  such  Certificate by  the  aggregate initial
principal balance (or notional amount) of  all Certificates of such Subclass  or
Class, as the case may be.
 
    In  general, the funds available for distribution to Certificateholders of a
Series of Certificates with  respect to each Distribution  Date for such  Series
(the "Pool Distribution Amount") will be the sum of all previously undistributed
payments  or  other  receipts  on  account  of  principal  (including  principal
prepayments and Liquidation Proceeds, if any)  and interest on or in respect  of
the  related Mortgage Loans  received by the related  Servicer after the Cut-Off
Date (except for amounts due  on or prior to the  Cut-Off Date), or received  by
the  related Servicer on or prior to the  Cut-Off Date but due after the Cut-Off
Date, in either  case received on  or prior  to the business  day preceding  the
Determination Date in the month in which such Distribution Date occurs, plus all
Periodic  Advances with respect to  payments due to be  received on the Mortgage
Loans on  the Due  Date  preceding such  Distribution  Date, but  excluding  the
following:
 
           (a)
           amounts received as late payments of principal or interest respecting
           which one or more unreimbursed Periodic Advances has been made;
 
           (b)
           that  portion of Liquidation Proceeds with respect to a Mortgage Loan
           which represents any unreimbursed Periodic Advances;
 
           (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, as adjusted in respect of principal prepayments in
    full as  described in  "Servicing of  the Mortgage  Loans --  Adjustment  to
    Servicing  Fee in Connection  with Prepaid Mortgage  Loans" below, (iii) the
    applicable Master Servicing Fee,  (iv) the Trustee's fee  and (v) any  other
    amounts described in the applicable Prospectus Supplement;
 
           (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 proceeds (including Liquidation  Proceeds other than, in  certain
           cases   as  specified   in  the   applicable  Prospectus  Supplement,
    Liquidation Proceeds which  were received  prior to  the related  Servicer's
    determination  that no further recoveries on  a defaulted Mortgage Loan will
    be forthcoming ("Partial Liquidation Proceeds"))  of any Mortgage Loans,  or
    property  acquired  in respect  thereof,  that were  liquidated, foreclosed,
    purchased or repurchased  pursuant to the  applicable Pooling and  Servicing
    Agreement,  which proceeds were received on  or after the Due Date occurring
    in the  month in  which  such Distribution  Date  occurs and  all  principal
    prepayments  in full, partial principal  prepayments and Partial Liquidation
    Proceeds received by the related Servicer on or after the Determination Date
    (or, in certain cases as specified in the applicable Prospectus  Supplement,
    the Due Date) occurring in the month in which such Distribution Date occurs,
    and all related payments of interest on such amounts;
 
           (f)
           that  portion  of Liquidation  Proceeds  which represents  any unpaid
           Servicing Fees, Master Servicing Fee or any Trustee Fee to which  the
    related  Servicer,  the Trustee  or  the Master  Servicer,  respectively, is
    entitled and any unpaid Fixed Retained Yield;
 
           (g)
           if an election has been made to treat the applicable Trust Estate  as
           a   REMIC,  any  Net   Foreclosure  Profits  with   respect  to  such
    Distribution Date;
 
                                       34
<PAGE>
           (h)
           all amounts representing certain expenses reimbursable to the  Master
           Servicer  or any Servicer and other amounts permitted to be withdrawn
    by the Master Servicer from the  Certificate Account, in each case  pursuant
    to the applicable Pooling and Servicing Agreement;
 
           (i)
           all  amounts in the nature of  late fees, assumption fees, prepayment
           fees and similar fees and  payments of interest related to  principal
    prepayments  received on  or after  the first  day of  the month  in which a
    Distribution Date occurs and prior to the Determination Date in the month of
    such Distribution  Date which  the related  Servicer is  entitled to  retain
    pursuant to the applicable Underlying Servicing Agreement;
 
           (j)
           reinvestment earnings on payments received in respect of the Mortgage
           Loans; and
 
           (k)
           any  recovery  of  an  amount  in  respect  of  principal  which  had
           previously been  allocated  as a  realized  loss to  such  Series  of
    Certificates.
 
    The  applicable  Prospectus  Supplement  for  a  Series  will  describe  any
variation in the calculation of the Pool Distribution Amount for such Series.
 
    "Net Foreclosure Profits" with  respect to a Distribution  Date will be  the
excess of (i) the portion of aggregate net Liquidation Proceeds which represents
the  amount by which aggregate profits on Liquidated Loans with respect to which
net Liquidation  Proceeds  exceed  the unpaid  principal  balance  thereof  plus
accrued  interest  thereon at  the Mortgage  Interest  Rate over  (ii) aggregate
realized losses  on  Liquidated Loans  with  respect to  which  net  Liquidation
Proceeds  are  less  than  the unpaid  principal  balance  thereof  plus accrued
interest thereon at the Mortgage Interest Rate.
 
    DISTRIBUTIONS OF INTEREST.   With  respect to each  Series of  Certificates,
interest on the related Mortgage Loans at the weighted average of the applicable
Net  Mortgage Interest Rates thereof, will  be passed through monthly to holders
of the related Classes of Certificates in the aggregate, in accordance with  the
particular  terms of each such Class of Certificates. The "Net Mortgage Interest
Rate" for each Mortgage Loan in a given period will equal the mortgage  interest
rate for such Mortgage Loan in such period, as specified in the related mortgage
note  (the  "Mortgage Interest  Rate"), less  the portion  thereof, if  any, not
contained in the  Trust Estate (the  "Fixed Retained Yield"),  and less  amounts
payable  to the Servicers for servicing the Mortgage Loan (the "Servicing Fee"),
the fee payable  to the Master  Servicer (the "Master  Servicing Fee"), the  fee
payable to the Trustee (the "Trustee Fee") and any related expenses specified in
the applicable Prospectus.
 
    Interest  will  accrue  on the  principal  balance (or  notional  amount, as
described below)  of each  Class of  Certificates entitled  to interest  at  the
Pass-Through  Rate  for  such  Class  indicated  in  the  applicable  Prospectus
Supplement (which may be a fixed rate  or an adjustable rate) from the date  and
for  the periods specified in such Prospectus Supplement. To the extent the Pool
Distribution Amount is  available therefor,  interest accrued  during each  such
specified  period on each Class of Certificates entitled to interest (other than
a Class that provides for interest  that accrues, but is not currently  payable,
referred  to hereafter as  "Accrual Certificates") will  be distributable on the
Distribution Dates specified in the  applicable Prospectus Supplement until  the
principal  balance (or notional amount) of such  Class has been reduced to zero.
Distributions allocable to interest on each Certificate that is not entitled  to
distributions  allocable to principal will generally  be calculated based on the
notional amount of such Certificate. The  notional amount of a Certificate  will
not  evidence  an  interest  in or  entitlement  to  distributions  allocable to
principal but will be  solely for convenience in  expressing the calculation  of
interest and for certain other purposes.
 
    With  respect to  any Class of  Accrual Certificates, any  interest that has
accrued but  is not  paid on  a given  Distribution Date  will be  added to  the
principal  balance  of such  Class of  Certificates  on that  Distribution Date.
Distributions of interest on  each Class of  Accrual Certificates will  commence
only  after the occurrence  of the events  or the existence  of the circumstance
specified in  such Prospectus  Supplement and,  prior to  such time,  or in  the
absence of such circumstances, the principal balance of such Class will increase
on  each  Distribution Date  by  the amount  of  interest that  accrued  on such
 
                                       35
<PAGE>
Class during the preceding interest accrual period but that was not required  to
be  distributed  to such  Class on  such  Distribution Date.  Any such  Class of
Accrual  Certificates  will  thereafter  accrue  interest  on  its   outstanding
principal balance as so adjusted.
 
    DISTRIBUTIONS  OF  PRINCIPAL.    The  principal  balance  of  any  Class  of
Certificates entitled  to  distributions  of principal  will  generally  be  the
original   principal  balance  of  such   Class  specified  in  such  Prospectus
Supplement, reduced  by  all  distributions  reported to  the  holders  of  such
Certificates  as allocable to  principal and any losses  on the related Mortgage
Loans allocated to such  Class of Certificates  and (i) in  the case of  Accrual
Certificates,  increased by all  interest accrued but  not then distributable on
such Accrual  Certificates and  (ii) in  the case  of a  Series of  Certificates
representing  interests in  a Trust  Estate containing  adjustable rate Mortgage
Loans, increased by any Deferred Interest allocable to such Class. The principal
balance of a Class or Subclass of Certificates generally represents the  maximum
specified  dollar amount (exclusive of (i) any  interest that may accrue on such
Class or Subclass to which the holder thereof is entitled from the cash flow  on
the  related Mortgage  Loans at  such time)  and will  decline to  the extent of
distributions in  reduction of  the  principal balance  of, and  allocations  of
losses  to such Class  or Subclass. Certificates with  no principal balance will
not receive distributions  in respect  of principal.  The applicable  Prospectus
Supplement  will  specify the  method by  which  the amount  of principal  to be
distributed on the Certificates on each Distribution Date will be calculated and
the manner  in  which  such  amount  will be  allocated  among  the  Classes  of
Certificates entitled to distributions of principal.
 
    If  so provided in the applicable Prospectus Supplement, one or more Classes
of Senior Certificates  will be entitled  to receive all  or a  disproportionate
percentage  of the  payments of  principal that  are received  from borrowers in
advance of  their  scheduled  due  dates and  are  not  accompanied  by  amounts
representing  scheduled interest  due after  the months  of such  payments or of
other unscheduled principal receipts or recoveries in the percentages and  under
the  circumstances or for  the periods specified  in such Prospectus Supplement.
Any such allocation of  principal prepayments or  other unscheduled receipts  or
recoveries  in  respect  of  principal  to  such  Class  or  Classes  of  Senior
Certificates will  have the  effect  of accelerating  the amortization  of  such
Senior Certificates while increasing the interests evidenced by the Subordinated
Certificates  in the Trust Estate. Increasing  the interests of the Subordinated
Certificates relative to that of the Senior Certificates is intended to preserve
the availability of the subordination provided by the Subordinated Certificates.
 
    If specified  in the  applicable Prospectus  Supplement, the  rights of  the
holders  of the Subordinated Certificates of  a Series of Certificates for which
credit enhancement is  provided through subordination  to receive  distributions
with  respect  to  the  Mortgage  Loans in  the  related  Trust  Estate  will be
subordinated to such  rights of the  holders of the  Senior Certificates of  the
same Series to the extent described below, except as otherwise set forth in such
Prospectus  Supplement. This subordination is intended to enhance the likelihood
of regular  receipt by  holders of  Senior Certificates  of the  full amount  of
scheduled  monthly payments  of principal and  interest due them  and to provide
limited protection to the holders of the Senior Certificates against losses  due
to mortgagor defaults.
 
    The protection afforded to the holders of Senior Certificates of a Series of
Certificates  for which credit enhancement  is provided through subordination by
the  subordination  feature  described  above  will  be  effected  by  (i)   the
preferential  right of such holders to  receive, prior to any distribution being
made in respect of  the related Subordinated  Certificates on each  Distribution
Date,  current  distributions on  the related  Mortgage  Loans of  principal and
interest due  them on  each Distribution  Date out  of the  funds available  for
distribution  on such date in the related Certificate Account, (ii) by the right
of such holders to receive future distributions on the Mortgage Loans that would
otherwise have been payable to  the holders of Subordinated Certificates  and/or
(iii)  by the  prior allocation  to the  Subordinated Certificates  of all  or a
portion of losses realized on the related Mortgage Loans.
 
    Losses realized  on liquidated  Mortgage Loans  (other than  Excess  Special
Hazard  Losses, Excess  Fraud Losses and  Excess Bankruptcy  Losses as described
below) will be allocated to the holders of
 
                                       36
<PAGE>
Subordinated Certificates  through  a  reduction  of  the  amount  of  principal
payments  on the Mortgage  Loans to which  such holders are  entitled before any
corresponding reduction is made in respect of the Senior Certificate.
 
    A "Special Hazard Loss" is a loss on a liquidated Mortgage Loan occurring as
a result  of a  hazard not  insured against  under a  standard hazard  insurance
policy  of the type described herein under  "The Trust Estates -- Mortgage Loans
- -- Insurance Policies." A "Fraud Loss" is  a loss on a liquidated Mortgage  Loan
as  to  which  there was  fraud  in the  origination  of such  Mortgage  Loan. A
"Bankruptcy Loss"  is a  loss  on a  liquidated  Mortgage Loan  attributable  to
certain  actions which may be  taken by a bankruptcy  court in connection with a
Mortgage Loan, including  a reduction  by a  bankruptcy court  of the  principal
balance  of or  the interest  rate on  a Mortgage  Loan or  an extension  of its
maturity. Special  Hazard  Losses in  excess  of  the amount  specified  in  the
applicable  Prospectus Supplement (the "Special Hazard Loss Amount") are "Excess
Special Hazard Losses." Fraud  Losses in excess of  the amount specified in  the
applicable  Prospectus Supplement  (the "Fraud  Loss Amount")  are "Excess Fraud
Losses." Bankruptcy losses in excess of  the amount specified in the  applicable
Prospectus  Supplement  (the "Bankruptcy  Loss  Amount") are  "Excess Bankruptcy
Losses." Any  Excess  Special  Hazard  Losses, Excess  Fraud  Losses  or  Excess
Bankruptcy Losses with respect to a Series will be allocated on a pro rata basis
among the related Classes of Senior and Subordinated Certificates. An allocation
of  a loss on a "pro rata basis" among two or more Classes of Certificates means
an allocation on  a pro rata  basis to each  such Class of  Certificates on  the
basis  of their then-outstanding principal balances in the case of the principal
portion of a loss  or based on the  accrued interest thereon in  the case of  an
interest portion of a loss.
 
    Since  the amounts of the Special Hazard  Loss Amount, Fraud Loss Amount and
Bankruptcy Loss Amount for a Series of Certificates are each expected to be less
than the amount of principal payments on the Mortgage Loans to which the holders
of the Subordinated  Certificates of  such Series are  initially entitled  (such
amount being subject to reduction, as described above, as a result of allocation
of losses on liquidated Mortgage Loans that are not Special Hazard Losses, Fraud
Losses  or Bankruptcy Losses), the holders  of Subordinated Certificates of such
Series will bear the risk of Special Hazard Losses, Fraud Losses and  Bankruptcy
Losses  to  a lesser  extent  than they  will  bear other  losses  on liquidated
Mortgage Loans.
 
    Although the subordination  feature described above  is intended to  enhance
the  likelihood of timely  payment of principal  and interest to  the holders of
Senior Certificates,  shortfalls  could  result in  certain  circumstances.  For
example,  a shortfall in the  payment of principal otherwise  due the holders of
Senior Certificates could occur  if losses realized on  the Mortgage Loans in  a
Trust  Estate  were exceptionally  high and  were  concentrated in  a particular
month.
 
    The holders of Subordinated Certificates will not be required to refund  any
amounts previously properly distributed to them, regardless of whether there are
sufficient  funds on a subsequent Distribution  Date to make a full distribution
to holders of each Class of Senior Certificates of the same Series.
 
OTHER CREDIT ENHANCEMENT
 
    In addition to, or in  substitution for, the subordination discussed  above,
credit enhancement may be provided with respect to any Series of Certificates in
any other manner which may be described in the applicable Prospectus Supplement,
including, but not limited to, credit enhancement through an alternative form of
subordination and/or one or more of the methods described below.
 
    LIMITED GUARANTEE
 
    If  so specified in  the Prospectus Supplement  with respect to  a Series of
Certificates, credit  enhancement may  be  provided in  the  form of  a  limited
guarantee issued by a guarantor named therein.
 
                                       37
<PAGE>
    FINANCIAL GUARANTY INSURANCE POLICY OR SURETY BOND
 
    If  so specified in  the Prospectus Supplement  with respect to  a Series of
Certificates credit  enhancement may  be provided  in the  form of  a  financial
guaranty insurance policy or a surety bond issued by an insurer named therein.
 
    LETTER OF CREDIT
 
    Alternative  credit support with respect to  a Series of Certificates may be
provided by  the  issuance of  a  letter of  credit  by the  bank  or  financial
institution  specified in  the applicable  Prospectus Supplement.  The coverage,
amount and frequency of any reduction in coverage provided by a letter of credit
issued with  respect to  a  Series of  Certificates will  be  set forth  in  the
Prospectus Supplement relating to such Series.
 
    POOL INSURANCE POLICIES
 
    If  so  specified  in the  Prospectus  Supplement  relating to  a  Series of
Certificates, the Seller will  obtain a pool insurance  policy for the  Mortgage
Loans in the related Trust Estate. The pool insurance policy will cover any loss
(subject  to the limitations described  in the applicable Prospectus Supplement)
by reason of default to the extent a related Mortgage Loan is not covered by any
primary mortgage insurance policy.  The amount and principal  terms of any  such
coverage will be set forth in the Prospectus Supplement.
 
    SPECIAL HAZARD INSURANCE POLICIES
 
    If  so specified in the applicable Prospectus Supplement, for each Series of
Certificates as to which  a pool insurance policy  is provided, the Seller  will
also  obtain a special hazard  insurance policy for the  related Trust Estate in
the amount set forth in such Prospectus Supplement. The special hazard insurance
policy will, subject to the  limitations described in the applicable  Prospectus
Supplement,  protect against  loss by reason  of damage  to Mortgaged Properties
caused by certain hazards not insured against under the standard form of  hazard
insurance policy for the respective states in which the Mortgaged Properties are
located.  The amount and principal terms of  any such coverage will be set forth
in the Prospectus Supplement.
 
    MORTGAGOR BANKRUPTCY BOND
 
    If so specified  in the applicable  Prospectus Supplement, losses  resulting
from  a bankruptcy  proceeding relating  to a  mortgagor affecting  the Mortgage
Loans in a Trust Estate with respect to a Series of Certificates will be covered
under a mortgagor bankruptcy bond (or any other instrument that will not  result
in  a downgrading of  the rating of the  Certificates of a  Series by the Rating
Agency or Rating Agencies that rated such Series). Any mortgagor bankruptcy bond
or such other  instrument will  provide for coverage  in an  amount meeting  the
criteria  of the Rating Agency or Rating Agencies rating the Certificates of the
related Series, which  amount will  be set  forth in  the applicable  Prospectus
Supplement.  The amount  and principal  terms of any  such coverage  will be set
forth in the Prospectus Supplement.
 
    RESERVE FUND
 
    If so specified in the applicable Prospectus Supplement, credit  enhancement
with respect to a Series of Certificates may be provided by the establishment of
one or more reserve funds (each, a "Reserve Fund") for such Series.
 
    The  Reserve Fund for a  Series may be funded (i)  by the deposit therein of
cash, U.S. Treasury securities or instruments evidencing ownership of  principal
or  interest payments thereon, letters of  credit, demand notes, certificates of
deposit or  a combination  thereof  in the  aggregate  amount specified  in  the
applicable  Prospectus Supplement, (ii) by the deposit therein from time to time
of certain amounts,  as specified  in the applicable  Prospectus Supplement,  to
which  the certain Classes of Certificates  would otherwise be entitled or (iii)
in  such  other  manner  as  may  be  specified  in  the  applicable  Prospectus
Supplement.
 
                                       38
<PAGE>
    CROSS SUPPORT
 
    If  specified  in  the  applicable  Prospectus  Supplement,  the  beneficial
ownership of separate groups of Mortgage Loans included in a Trust Estate may be
evidenced by separate Classes of Certificates. In such case, credit support  may
be provided by a cross support feature which requires that distributions be made
with respect to certain Classes from mortgage loan payments that would otherwise
be  distributed to  Subordinated Certificates evidencing  a beneficial ownership
interest in  other loan  groups within  the same  Trust Estate.  The  applicable
Prospectus  Supplement for a  Series that includes a  cross support feature will
describe the specific operation of any such cross support feature.
 
                      PREPAYMENT AND YIELD CONSIDERATIONS
 
PASS-THROUGH RATES
 
    Any Class of Certificates of a Series may have a fixed Pass-Through Rate, or
a Pass-Through  Rate which  varies based  on changes  in an  index or  based  on
changes  with respect  to the underlying  Mortgage Loans (such  as, for example,
varying on the basis  of changes in the  weighted average Net Mortgage  Interest
Rate of the underlying Mortgage Loans).
 
    The  Prospectus Supplement  for each Series  will specify the  range and the
weighted average of the Mortgage Interest Rates and, if applicable, Net Mortgage
Interest Rates for the Mortgage Loans  underlying such Series as of the  Cut-Off
Date.  If the Trust  Estate includes adjustable-rate  Mortgage Loans or includes
Mortgage Loans with different Net Mortgage Interest Rates, the weighted  average
Net  Mortgage Interest Rate may  vary from time to time  as set forth below. See
"The Trust Estates." The  Prospectus Supplement for a  Series will also  specify
the initial weighted average Pass-Through Rate for each Class of Certificates of
such  Series and will specify whether each such Pass-Through Rate is fixed or is
variable.
 
    The Net Mortgage Interest  Rate for any  adjustable-rate Mortgage Loan  will
change  with any  changes in  the index  specified in  the applicable Prospectus
Supplement on which such Mortgage  Interest Rate adjustments are based,  subject
to  any applicable periodic or aggregate caps  or floors on the related Mortgage
Interest Rate. The weighted average Net  Mortgage Interest Rate with respect  to
any  Series  may vary  due  to changes  in the  Net  Mortgage Interest  Rates of
adjustable-rate Mortgage  Loans, to  the timing  of the  Mortgage Interest  Rate
readjustments  of  such Mortgage  Loans  and to  different  rates of  payment of
principal of fixed or adjustable-rate Mortgage Loans bearing different  Mortgage
Interest Rates.
 
SCHEDULED DELAYS IN DISTRIBUTIONS
 
    At  the date of initial issuance of  the Certificates of each Series offered
hereby, the initial purchasers of a Class of Certificates may be required to pay
accrued interest at  the applicable Pass-Through  Rate for such  Class from  the
Cut-Off  Date for such Series  to, but not including,  the date of issuance. The
effective yield to Certificateholders will be below the yield otherwise produced
by the applicable Pass-Through  Rate because the  distribution of principal  and
interest  which is due on each Due Date will  not be made until the 25th day (or
if such 25th day is not a  business day, the business day immediately  following
such  25th day) of the month in which  such Due Date occurs (or until such other
Distribution Date specified in the applicable Prospectus Supplement).
 
EFFECT OF PRINCIPAL PREPAYMENTS
 
    When a Mortgage Loan is prepaid in full, the mortgagor pays interest on  the
amount  prepaid only to  the date of prepayment  and not thereafter. Liquidation
Proceeds (as defined  herein) and  amounts received in  settlement of  insurance
claims  are  also likely  to include  interest only  to the  time of  payment or
settlement. When a  Mortgage Loan is  prepaid in  full or in  part, an  interest
shortfall  may result depending on  the timing of the  receipt of the prepayment
and  the   timing   of   when   those  prepayments   are   passed   through   to
Certificateholders.   To  partially  mitigate  this   reduction  in  yield,  the
Underlying Servicing Agreements relating to a Series may provide, to the  extent
specified  in the applicable Prospectus Supplement, that with respect to certain
principal prepayments received on or
 
                                       39
<PAGE>
after the  Determination Date  in the  month preceding  the month  in which  the
related Distribution Date occurs and prior to the Due Date in the month in which
such  Distribution Date occurs, or, with respect to certain Underlying Servicing
Agreements,  during  the  month  preceding  the  month  in  which  the   related
Distribution  Date  occurs,  the related  Servicer  will pay  into  the Servicer
Custodial Account for remittance to the Certificate Account for such Series,  to
the  extent funds  are available for  such purpose from  the aggregate Servicing
Fees (or portion thereof as  specified in the applicable Prospectus  Supplement)
which  such Servicer  is entitled to  receive relating to  mortgagor payments or
other recoveries distributed to  Certificateholders on the related  Distribution
Date, the amount, if any, of interest at the Net Mortgage Interest Rate for such
Mortgage  Loan for the  period from the date  of such prepayment  in full to and
including the end  of the  month in  which such  prepayment in  full occurs.  No
comparable  offset against  the Servicing Fee  will be provided  with respect to
liquidations  of  any  Mortgage  Loans.  Any  interest  shortfall  arising  from
prepayments  not so covered or from liquidations will be covered by means of the
subordination of  the rights  of Subordinated  Certificateholders or  any  other
credit  support arrangements. See "Servicing of the Mortgage Loans -- Adjustment
to Servicing Fee in Connection with Prepaid Mortgage Loans."
 
    A lower  rate of  principal prepayments  than anticipated  would  negatively
affect  the total return to  investors in any Certificates  of a Series that are
offered at a discount to their principal  amount and a higher rate of  principal
prepayments  than  anticipated  would  negatively  affect  the  total  return to
investors in the Certificates of a Series that are offered at a premium to their
principal amount.  The  yield  on  Certificates  that  are  entitled  solely  or
disproportionately to distributions of principal or interest may be particularly
sensitive  to prepayment rates, and further information with respect to yield on
such Certificates will be included in the applicable Prospectus Supplement.
 
WEIGHTED AVERAGE LIFE OF CERTIFICATES
 
    The Mortgage Loans may be prepaid in  full or in part at any time.  Mortgage
Loan  generally will not provide for a  prepayment penalty but may so provide if
indicated in  the  related  Prospectus Supplement.  Fixed  rate  Mortgage  Loans
generally   will  contain  due-on-sale  clauses   permitting  the  mortgagee  to
accelerate the maturities of the Mortgage  Loans upon conveyance of the  related
Mortgaged  Properties, and adjustable-rate Mortgage  Loans generally will permit
creditworthy borrowers  to  assume  the  then-outstanding  indebtedness  on  the
Mortgage Loans.
 
    Prepayments on Mortgage Loans are commonly measured relative to a prepayment
standard or model. The Prospectus Supplement for each Series of Certificates may
describe  one or  more such  prepayment standards  or models  and contain tables
setting forth the weighted average life of each Class and the percentage of  the
original  aggregate principal balance of each Class that would be outstanding on
specified Distribution  Dates  for  such  Series and  the  projected  yields  to
maturity  on  certain Classes  thereof, in  each case  based on  the assumptions
stated in such Prospectus Supplement, including assumptions that prepayments  on
the Mortgage Loans are made at rates corresponding to various percentages of the
prepayment standard or model specified in such Prospectus Supplement.
 
    There  is no  assurance that prepayment  of the Mortgage  Loans underlying a
Series of Certificates will conform to  any level of the prepayment standard  or
model  specified in the  applicable Prospectus Supplement.  A number of factors,
including but not  limited to homeowner  mobility, economic conditions,  natural
disasters, changes in mortgagors' housing needs, job transfers, unemployment or,
in  the  case  of  borrowers  relying  on  commission  income  and self-employed
borrowers, significant fluctuations  in income or  adverse economic  conditions,
mortgagors'  net equity in the properties  securing the mortgages, including the
use of second or "home  equity" mortgage loans by mortgagors  or the use of  the
properties  as second or vacation  homes, servicing decisions, enforceability of
due-on-sale clauses, mortgage market  interest rates, mortgage recording  taxes,
competition  among mortgage  loan originators  resulting in  reduced refinancing
costs, reduction in documentation requirements and willingness to accept  higher
loan-to-value  ratios,  and  the  availability  of  mortgage  funds,  may affect
prepayment experience. In  general, however, if  prevailing interest rates  fall
below  the  Mortgage Interest  Rates borne  by the  Mortgage Loans  underlying a
Series of Certificates, the prepayment rates of such
 
                                       40
<PAGE>
Mortgage Loans are likely  to be higher  than if prevailing  rates remain at  or
above the rates borne by such Mortgage Loans. Conversely, if prevailing interest
rates  rise above the Mortgage  Interest Rates borne by  the Mortgage Loans, the
Mortgage Loans  are  likely  to  experience a  lower  prepayment  rate  than  if
prevailing rates remain at or below such Mortgage Interest Rates. However, there
can be no assurance that prepayments will rise or fall according to such changes
in interest rates. It should be noted that Certificates of a Series may evidence
an   interest  in  a  Trust  Estate  with  different  Mortgage  Interest  Rates.
Accordingly, the prepayment experience of such Certificates will to some  extent
be  a function of the mix of interest  rates of the Mortgage Loans. In addition,
the terms  of  the Underlying  Servicing  Agreements will  require  the  related
Servicer to enforce any due-on-sale clause to the extent it has knowledge of the
conveyance  or  the proposed  conveyance of  the underlying  Mortgaged Property;
provided, however,  that any  enforcement action  that the  Servicer  determines
would  jeopardize  any recovery  under  any related  primary  mortgage insurance
policy will not be required and provided, further, that the Servicer may  permit
the assumption of defaulted Mortgage Loans. See "Servicing of the Mortgage Loans
- --  Enforcement  of  Due-on-Sale Clauses;  Realization  Upon  Defaulted Mortgage
Loans" and "Certain Legal Aspects of the Mortgage Loans -- Due-On-Sale  Clauses"
for  a description of certain provisions of each Pooling and Servicing Agreement
and certain legal developments that may affect the prepayment experience on  the
Mortgage Loans.
 
    At the request of the mortgagor, a Servicer, including Norwest Mortgage, may
allow  the refinancing of a  Mortgage Loan in any  Trust Estate serviced by such
Servicer by accepting prepayments thereon and permitting a new loan secured by a
Mortgage on the same property. Upon such  refinancing, the new loan will not  be
included in the Trust Estate. A mortgagor may be legally entitled to require the
Servicer  to allow such a  refinancing. Any such refinancing  will have the same
effect as a prepayment in  full of the related Mortgage  Loan. In this regard  a
Servicer  may,  from  time to  time,  implement programs  designed  to encourage
refinancing through  such Servicer,  including  but not  limited to  general  or
targeted  solicitations, or  the offering of  pre-approved applications, reduced
origination fees or closing costs, or other financial incentives. A Servicer may
also encourage refinancing of defaulted Mortgage Loans, including Mortgage Loans
that would permit creditworthy borrowers to assume the outstanding indebtedness.
 
    The Seller will  be obligated,  under certain  circumstances, to  repurchase
certain  of  the Mortgage  Loans. In  addition, if  specified in  the applicable
Prospectus Supplement, the Pooling and Servicing Agreement will permit, but  not
require,  the  Seller or  Master Servicer,  and the  terms of  certain insurance
policies relating to the  Mortgage Loans may permit  the applicable insurer,  to
purchase  any  Mortgage Loan  which  is in  default or  as  to which  default is
reasonably foreseeable. The proceeds of any such purchase or repurchase will  be
deposited  in the  related Certificate Account  and such  purchase or repurchase
will have the same effect as a prepayment in full of the related Mortgage  Loan.
See  "The Pooling and Servicing Agreement -- Assignment of Mortgage Loans to the
Trustee" and  " --  Optional Purchases."  In addition,  if so  specified in  the
applicable   Prospectus  Supplement,  the  Master  Servicer  or  another  person
identified therein will have the option to purchase all, but not less than  all,
of the Mortgage Loans in any Trust Estate under the limited conditions specified
in  such  Prospectus Supplement.  For any  Series of  Certificates for  which an
election has been  made to treat  the Trust  Estate (or one  or more  segregated
pools  of assets  therein) as a  REMIC, any  such purchase or  repurchase may be
effected only pursuant to a "qualified liquidation," as defined in Code  Section
860F(a)(4)(A). See "The Pooling and Servicing Agreement -- Termination; Optional
Purchase of Mortgage Loans."
 
                        SERVICING OF THE MORTGAGE LOANS
 
    The  following  is a  summary  of certain  provisions  of the  forms  of the
Underlying Servicing Agreement and the Pooling and Servicing Agreement that have
been filed as exhibits  to the Registration Statement  of which this  Prospectus
forms    a   part.   The    summaries   do   not    purport   to   be   complete
 
                                       41
<PAGE>
and are subject to, and are qualified in their entirety by reference to, all  of
the  provisions of the Pooling and  Servicing Agreement and Underlying Servicing
Agreements for  each  Series  of  Certificates  and  the  applicable  Prospectus
Supplement.
 
THE MASTER SERVICER
 
    The  Master Servicer  with respect  to each  Series of  Certificates will be
Norwest Bank. See "Norwest Bank" above.  The Master Servicer generally will  (a)
be  responsible under each Pooling and Servicing Agreement for providing general
administrative services for  the Trust  Estate for any  such Series,  including,
among other things, (i) for administering and supervising the performance by the
Servicers  of their duties  and responsibilities under  the Underlying Servicing
Agreements, (ii)  oversight  of  payments  received  on  Mortgage  Loans,  (iii)
monitoring the amounts on deposit in various trust accounts, (iv) calculation of
the  amounts  payable  to  Certificateholders  on  each  Distribution  Date, (v)
preparation of periodic reports  to the Trustee  or the Certificateholders  with
respect  to the  foregoing matters, (vi)  preparation of  federal and applicable
state and local tax  and information returns; (vii)  preparation of reports,  if
any,  required under  the Securities  and Exchange Act  of 1934,  as amended and
(viii) performing certain of the servicing obligations of a terminated  Servicer
as  described below  under "--  The Servicers";  (b) maintain  any mortgage pool
insurance policy, mortgagor bankruptcy bond, special hazard insurance policy  or
other form of credit support that may be required with respect to any Series and
(c)  make  advances of  delinquent  payments of  principal  and interest  on the
Mortgage Loans  to  the  limited  extent  described  herein  under  the  heading
"Servicing  of Mortgage Loans -- Periodic  Advances and Limitations Thereon," if
such amounts are not advanced by  a Servicer (other than Norwest Mortgage).  The
Master  Servicer  will  also  perform  additional  duties  as  described  in the
applicable Pooling and Servicing Agreement. The Master Servicer will be entitled
to receive a portion of the interest payments on the Mortgage Loans included  in
the  Trust Estate for  such a Series to  cover its fees  as Master Servicer. The
Master Servicer may subcontract  with Norwest Mortgage or  any other entity  the
obligations  of the Master  Servicer under any  Pooling and Servicing Agreement.
The Master  Servicer will  remain  primarily liable  for any  such  contractor's
performance  in accordance with the  applicable Pooling and Servicing Agreement.
The  Master  Servicer  may   be  released  from   its  obligations  in   certain
circumstances. See "Certain Matters Regarding the Master Servicer."
 
    The  Master Servicer will generally be required to pay all expenses incurred
in connection with the  administration of the  Trust Estate, including,  without
limitation,  fees or other amounts payable  pursuant to any applicable agreement
for  the  provision  of  credit  enhancement  for  such  Series,  the  fees  and
disbursements  of the  Trustee and  any custodian,  fees due  to the independent
accountants and expenses incurred in  connection with distributions and  reports
to  Certificateholders. Certain  of these  expenses may  be reimbursable  to the
Master Servicer pursuant to  the terms of the  applicable Pooling and  Servicing
Agreement.
 
    Each  Prospectus Supplement relating  to such a  Series of Certificates will
contain information  concerning recent  delinquency, foreclosure  and loan  loss
experience  on  the  mortgage  loans included  in  Norwest  Mortgage's servicing
portfolio which were  originated or  acquired by  Norwest Mortgage  for its  own
account  or  for  the  account  of its  affiliates  ("Program  Loans"),  and, if
available, on  those Program  Loans having  payment terms  generally similar  to
those  of the Mortgage Loans  in the related Trust  Estate. If the related Trust
Estate contains  PHMC  Mortgage Loans,  the  related Prospectus  Supplement  may
contain  information concerning  PHMC's delinquency,  foreclosure and  loan loss
experience prior to  the PHMC  Acquisition. Norwest  Mortgage's total  servicing
portfolio  of Program  Loans as  of any date  may include  (and PHMC's servicing
portfolio included) loans having a variety of payment characteristics, including
adjustable rate mortgage loans and loans subject to subsidy agreements, and  the
overall  delinquency, foreclosure and loan loss  experience of the Program Loans
(or PHMC-serviced mortgage loans) taken as a  whole may differ from that of  the
Mortgage  Loans contained in  any given Trust  Estate and from  that of mortgage
servicers generally.
 
                                       42
<PAGE>
THE SERVICERS
 
    For  each  Series,  Norwest Mortgage  and,  if specified  in  the applicable
Prospectus  Supplement,  one  or  more  other  Servicers  will  provide  certain
customary  servicing  functions  with  respect  to  Mortgage  Loans  pursuant to
separate servicing  agreements  ("Underlying  Servicing  Agreements")  with  the
Seller or an affiliate thereof. The rights of the Seller or such affiliate under
the  applicable Underlying Servicing Agreements in respect of the Mortgage Loans
included in the Trust Estate for any  such Series will be assigned (directly  or
indirectly)  to the Trustee  for such Series.  The Servicers may  be entitled to
withhold  their  Servicing  Fees  and  certain  other  fees  and  charges   from
remittances of payments received on Mortgage Loans serviced by them.
 
    Each  Servicer generally will be approved by  FNMA or FHLMC as a servicer of
mortgage loans  and must  be approved  by the  Master Servicer.  In  determining
whether to approve a Servicer, the Master Servicer will review the credit of the
Servicer,  including capitalization  ratios, liquidity,  profitability and other
similar items that  indicate financial  ability to perform  its obligations.  In
addition,  the Master  Servicer's mortgage  servicing personnel  will review the
Servicer's servicing record and evaluate the ability of the Servicer to  conform
with  required servicing  procedures. Once  a Servicer  is approved,  the Master
Servicer will continue to monitor on an annual basis the financial position  and
servicing performance of the Servicer.
 
    The  duties  to  be  performed  by  each  Servicer  include  collection  and
remittance  of  principal   and  interest  payments   on  the  Mortgage   Loans,
administration  of  mortgage escrow  accounts,  collection of  insurance claims,
foreclosure procedures, and, if  necessary, the advance of  funds to the  extent
certain  payments are not made by the  mortgagor and have not been determined by
the Servicer to be not recoverable under the applicable insurance policies  with
respect  to such Series, from proceeds of  liquidation of such Mortgage Loans or
otherwise. Each  Servicer  also  will  provide  such  accounting  and  reporting
services  as are  necessary to  enable the  Master Servicer  to provide required
information to the Trustee  with respect to the  Mortgage Loans included in  the
Trust  Estate for such Series. Each Servicer is entitled to a periodic Servicing
Fee equal to a specified percentage of the outstanding principal balance of each
Mortgage Loan  serviced  by  such  Servicer. With  the  consent  of  the  Master
Servicer,  any of the  servicing obligations of  a Servicer may  be delegated to
another person approved  by the  Master Servicer. In  addition, certain  limited
duties of a Servicer may be delegated without consent.
 
    The  Trustee, or if  so provided in the  applicable Servicing Agreement, the
Master Servicer, may  terminate a  Servicer who has  failed to  comply with  its
covenants  or breached  one of its  representations contained  in the Underlying
Servicing Agreement or  in certain  other circumstances. Upon  termination of  a
Servicer  by  the  Master  Servicer, the  Master  Servicer  will  assume certain
servicing obligations of the terminated Servicer, or, at its option, may appoint
a substitute Servicer acceptable to  the Trustee (which substitute Servicer  may
be  Norwest  Mortgage) to  assume the  servicing  obligations of  the terminated
Servicer. The Master Servicer's obligations to  act as a servicer following  the
termination  of an Underlying Servicing Agreement will not, however, require the
Master Servicer to (i) purchase a Mortgage  Loan from the Trust Estate due to  a
breach  by such  Servicer of  a representation  or warranty  in respect  of such
Mortgage Loan or (ii) with respect to a default by Norwest Mortgage as Servicer,
advance payments of principal and interest on a delinquent Mortgage Loan.
 
PAYMENTS ON MORTGAGE LOANS
 
    The Master Servicer will, as to  each Series of Certificates, establish  and
maintain  a separate trust account in the  name of the Trustee (the "Certificate
Account"). Such  account may  be established  at Norwest  Bank or  an  affiliate
thereof.  Each such  account must  be maintained  with a  depository institution
("Depository") either (i) 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) are, at the time of
any deposit therein rated in at least  one of the two highest rating  categories
by  each nationally  recognized statistical  rating organization  that rated the
related Series of  Certificates, or  (ii) that  is otherwise  acceptable to  the
Rating  Agency or Rating Agencies rating the Certificates of such Series and, if
a REMIC election has been  made, that would not  cause the related Trust  Estate
(or  one or  more segregated pools  of assets therein)  to fail to  qualify as a
REMIC. To the
 
                                       43
<PAGE>
extent that the  portion of funds  deposited in the  Certificate Account at  any
time  exceeds the limit of insurance coverage established by the Federal Deposit
Insurance Corporation (the "FDIC"), such excess  will be subject to loss in  the
event of the failure of the Depository. Such insurance coverage will be based on
the  number of  holders of  Certificates, rather  than the  number of underlying
mortgagors. Holders of the Subordinated Certificates  of a Series will bear  any
such  loss up to the amount of  principal payments on the related Mortgage Loans
to which such holders are entitled.
 
    Pursuant to the applicable Underlying Servicing Agreements with respect to a
Series, each Servicer  will be required  to establish and  maintain one or  more
accounts  (collectively,  the  "Servicer  Custodial  Account")  into  which  the
Servicer will be  required to  deposit on a  daily basis  amounts received  with
respect to Mortgage Loans serviced by such Servicer included in the Trust Estate
for  such Series, as more fully described below. Each Servicer Custodial Account
must be a separate custodial account insured to the available limits by the FDIC
and limited  to funds  held with  respect  to a  particular Series,  unless  the
Underlying  Servicing  Agreement  specifies  that a  Servicer  may  establish an
account which is an eligible account meeting the requirements of the  applicable
Rating Agencies (an "Eligible Custodial Account") to serve as a unitary Servicer
Custodial  Account both for such Series and for other Series of Certificates for
which Norwest  Bank  is  the  Master Servicer  and  having  the  same  financial
institution acting as Trustee and to be maintained in the name of such financial
institution, in its respective capacities as Trustee for each such Series.
 
    Each  Servicer will  be required to  deposit in the  Certificate Account for
each Series of Certificates on the date the Certificates are issued any  amounts
representing  scheduled payments of principal and interest on the Mortgage Loans
serviced by such Servicer due after the applicable Cut-Off Date but received  on
or  prior  thereto,  and  except  as specified  in  the  applicable  Pooling and
Servicing Agreement  or  Underlying Servicing  Agreement,  will deposit  in  the
Servicer  Custodial Account on receipt and,  thereafter, not later than the 18th
calendar day  of each  month  or such  other  day as  may  be specified  in  the
Underlying Servicing Agreement (the "Remittance Date"), will remit to the Master
Servicer  for deposit  in the  Certificate Account,  the following  payments and
collections received or made by such Servicer with respect to the Mortgage Loans
serviced by such Servicer subsequent to the applicable Cut-Off Date (other  than
(x)  payments due on or before the Cut-Off  Date and (y) amounts held for future
distribution):
 
           (i)
           all payments  on account  of  principal, including  prepayments,  and
           interest;
 
          (ii)
           all   amounts  received  by  the  Servicer  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 defaulted  Mortgage  Loans received  from  the
    mortgagor  other than amounts required to  be paid to the mortgagor pursuant
    to the terms of  the applicable Mortgage Loan  or otherwise pursuant to  law
    ("Liquidation  Proceeds") less, to the extent permitted under the applicable
    Underlying Servicing  Agreement,  the amount  of  any expenses  incurred  in
    connection with the liquidation of such Mortgage Loans;
 
         (iii)
           all  proceeds received  by the  Servicer under  any title,  hazard or
           other insurance policy  covering any such  Mortgage Loan, other  than
    proceeds  to be applied to the restoration or repair of the property subject
    to the related Mortgage or released to the mortgagor in accordance with  the
    Underlying Servicing Agreement;
 
          (iv)
           all Periodic Advances made by the Servicer;
 
           (v)
           all  amounts withdrawn from Buy-Down Funds  or Subsidy Funds, if any,
           with respect to such Mortgage Loans, in accordance with the terms  of
    the respective agreements applicable thereto;
 
          (vi)
           all  proceeds  of any  such Mortgage  Loans  or property  acquired in
           respect thereof purchased or repurchased pursuant to the Pooling  and
    Servicing Agreement or the Underlying Servicing Agreement; and
 
                                       44
<PAGE>
         (vii)
           all  other amounts required  to be deposited  therein pursuant to the
           applicable  Pooling  and  Servicing   Agreement  or  the   Underlying
    Servicing Agreement.
 
    Notwithstanding  the foregoing, if at any time  the sums in (x) any Servicer
Custodial Account, other than any Eligible Custodial Account, exceed $100,000 or
(y) any such Servicer Custodial  Account, in certain circumstances, exceed  such
amount  less than $100,000 as shall have  been specified by the Master Servicer,
the Servicer will be  required within one business  day to withdraw such  excess
funds from such account and remit such amounts to the Certificate Account.
 
    Notwithstanding  the  foregoing,  each  Servicer will  be  entitled,  at its
election, either (a)  to withhold and  pay itself the  applicable Servicing  Fee
from  any payment or other recovery on account of interest as received and prior
to deposit  in  the Servicer  Custodial  Account or  (b)  to withdraw  from  the
Servicer Custodial Account the applicable Servicing Fee after the entire payment
or recovery has been deposited in such account.
 
    The  Master Servicer or Trustee will  deposit in the Certificate Account any
Periodic Advances made  by the  Master Servicer  or Trustee  in the  event of  a
Servicer  default not later than the Distribution Date on which such amounts are
required to  be  distributed.  All  other  amounts  will  be  deposited  in  the
Certificate  Account not later than  the business day next  following the day of
receipt and posting by the Master Servicer. On or before each Distribution Date,
the Master Servicer will withdraw from the Certificate Account and remit to  the
Trustee for distribution to Certificateholders all amounts allocable to the Pool
Distribution Amount for such Distribution Date.
 
    If  a  Servicer,  the  Master  Servicer  or  the  Trustee  deposits  in  the
Certificate Account  for  a Series  any  amount  not required  to  be  deposited
therein,  the Master  Servicer may  at any time  withdraw such  amount from such
account for  itself  or for  remittance  to such  Servicer  or the  Trustee,  as
applicable.  Funds  on deposit  in the  Certificate Account  may be  invested in
certain investments acceptable to  the Rating Agencies ("Eligible  Investments")
maturing  in  general  not  later  than  the  business  day  preceding  the next
Distribution Date. In  the event that  an election  has been made  to treat  the
Trust Estate (or one or more segregated pools of assets therein) with respect to
a Series as a REMIC, 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 (or segregated pool  of assets) to be subject to the
tax on "prohibited transactions" imposed  by Code Section 860F(a)(1),  otherwise
subject  the Trust Estate  (or segregated pool  of assets) to  tax, or cause the
Trust Estate (or any segregated  pool of assets) to fail  to qualify as a  REMIC
while  any  Certificates  of the  Series  are outstanding.  Except  as otherwise
specified in the applicable Prospectus Supplement, all income and gain  realized
from  any such  investment will  be for  the account  of the  Master Servicer as
additional compensation  and  all  losses  from  any  such  investment  will  be
deposited by the Master Servicer out of its own funds to the Certificate Account
immediately as realized.
 
    The  Master Servicer  is permitted, from  time to time,  to make withdrawals
from the Certificate Account for the following purposes, to the extent permitted
in the applicable Pooling and Servicing Agreement (and, in the case of  Servicer
reimbursements  by  the  Master  Servicer,  only  to  the  extent  funds  in the
respective Servicer Custodial Account are not sufficient therefor):
 
           (i)
           to reimburse the  Master Servicer,  the Trustee or  any Servicer  for
           Advances;
 
          (ii)
           to  reimburse any Servicer  for liquidation expenses  and for amounts
           expended by itself or any Servicer, as applicable, in connection with
    the restoration of damaged property;
 
         (iii)
           to pay to itself  the applicable Master Servicing  Fee and any  other
           amounts constituting additional master servicing compensation, to pay
    the  Trustee the applicable Trustee Fee, to  pay any other fees described in
    the applicable Prospectus Supplement;  and to pay to  the owner thereof  any
    Fixed Retained Yield;
 
                                       45
<PAGE>
          (iv)
           to  reimburse itself or any  Servicer for certain expenses (including
           taxes paid on behalf of the Trust Estate) incurred by and recoverable
    by or reimbursable to itself or the Servicer, as applicable;
 
           (v)
           to pay  to the  Seller, a  Servicer or  itself with  respect to  each
           Mortgage  Loan or property acquired in  respect thereof that has been
    repurchased by the Seller or purchased by a Servicer or the Master  Servicer
    all  amounts received thereon and not distributed as of the date as of which
    the purchase price of such Mortgage Loan was determined;
 
          (vi)
           to pay to itself any interest  earned on or investment income  earned
           with  respect to funds in the  Certificate Account (all such interest
    or income to be withdrawn not later than the next Distribution Date);
 
         (vii)
           to pay to itself, the Servicer  and the Trustee from net  Liquidation
           Proceeds  allocable  to interest,  the  amount of  any  unpaid Master
    Servicing Fee,  Servicing Fees  or Trustee  Fees and  any unpaid  assumption
    fees,  late  payment  charges  or other  mortgagor  charges  on  the related
    Mortgage Loan;
 
        (viii)
           to withdraw from the Certificate Account any amount deposited in such
           account that was not required to be deposited therein; and
 
          (ix)
           to clear and terminate the Certificate Account.
 
    The Master  Servicer will  be  authorized to  appoint  a paying  agent  (the
"Paying  Agent") to  make distributions,  as agent  for the  Master Servicer, to
Certificateholders of a Series. If the Paying Agent for a Series is the  Trustee
of  such Series, such Paying  Agent will be authorized  to make withdrawals from
the Certificate Account in order to make distributions to Certificateholders. If
the Paying Agent for  a Series is  not the Trustee for  such Series, the  Master
Servicer will, on each Distribution Date, deposit in immediately available funds
in  an account  designated by any  such Paying  Agent the amount  required to be
distributed to the Certificateholders on such Distribution Date.
 
    The Master Servicer will cause any Paying  Agent that is not the Trustee  to
execute  and deliver  to the  Trustee an instrument  in which  such Paying Agent
agrees with the Trustee that such Paying Agent will:
 
       (1) hold all  amounts  deposited  with  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 provided in the applicable Pooling and Servicing
    Agreement;
 
       (2) give  the Trustee notice of any default by the Master Servicer in the
           making of such deposit; and
 
       (3) at any time during the continuance of any such default, upon  written
           request to the Trustee, forthwith pay to the Trustee all amounts held
    in trust by such Paying Agent.
 
PERIODIC ADVANCES AND LIMITATIONS THEREON
 
    Generally  each Servicer will  be required to make  (i) Periodic Advances to
cover delinquent payments of  principal and interest on  such Mortgage Loan  and
(ii)  other advances of  cash ("Other Advances"  and, collectively with Periodic
Advances, "Advances")  to  cover (x)  delinquent  payments of  taxes,  insurance
premiums,   and  other  escrowed  items  and  (y)  rehabilitation  expenses  and
foreclosure costs, including reasonable attorneys'  fees, in either case  unless
such  Servicer has determined that any subsequent payments on that Mortgage Loan
or from the borrower will ultimately not be available to reimburse such Servicer
for such amounts.  The failure  of the Servicer  to make  any required  Periodic
Advances or Other Advances under an Underlying Servicing Agreement constitutes a
default  under such  agreement for which  the Servicer will  be terminated. Upon
default by a Servicer, other than Norwest Mortgage, the Master Servicer may, and
upon default by Norwest Mortgage the Trustee may, in each case if so provided in
the Pooling and Servicing Agreement, be required to make
 
                                       46
<PAGE>
Periodic Advances  to the  extent necessary  to make  required distributions  on
certain  Certificates  or  certain  Other  Advances,  provided  that  the Master
Servicer or Trustee,  as applicable,  determines that funds  will ultimately  be
available  to reimburse it. In the case  of Certificates of any Series for which
credit enhancement is provided in the form of a mortgage pool insurance  policy,
the Seller may obtain an endorsement to the mortgage pool insurance policy which
obligates  the  Pool Insurer  to advance  delinquent  payments of  principal and
interest. The Pool Insurer would only be obligated under such endorsement to the
extent the  mortgagor fails  to make  such payment  and the  Master Servicer  or
Trustee fails to make a required advance.
 
    The  advance obligation  of the Master  Servicer and Trustee  may be further
limited to an amount specified by the Rating Agency rating the Certificates. Any
such Periodic Advances by  the Servicers or the  Master Servicer or Trustee,  as
the  case  may be,  must  be deposited  into  the applicable  Servicer Custodial
Account or the Certificate Account  and will be due  no later than the  business
day  before  the Distribution  Date to  which  such delinquent  payment relates.
Advances by the Servicers or the Master Servicer or Trustee, as the case may be,
will be reimbursable out of insurance  proceeds or Liquidation Proceeds of,  or,
except for Other Advances, future payments on, the Mortgage Loans for which such
amounts  were advanced. If an Advance made by a Servicer, the Master Servicer or
the Trustee later proves, or is deemed by the Master Servicer or the Trustee, to
be unrecoverable, such Servicer, the Master Servicer or the Trustee, as the case
may be, will be entitled to reimbursement from funds in the Certificate  Account
prior  to the distribution  of payments to the  Certificateholders to the extent
provided in the Pooling and Servicing Agreement.
 
    Any Periodic Advances made by a Servicer, the Master Servicer or the Trustee
with respect to Mortgage Loans included in  the Trust Estate for any Series  are
intended  to  enable  the  Trustee  to  make  timely  payment  of  the scheduled
distributions of  principal and  interest on  the Certificates  of such  Series.
However,  neither the Master  Servicer, the Trustee, any  Servicer nor any other
person  will,  except  as  otherwise  specified  in  the  applicable  Prospectus
Supplement,  insure or guarantee the Certificates  of any Series or the Mortgage
Loans included in the Trust Estate for any Certificates.
 
ADJUSTMENT TO SERVICING FEE IN CONNECTION WITH PREPAID MORTGAGE LOANS
 
    When a mortgagor prepays all or part of a Mortgage Loan, the mortgagor  pays
interest  on  the  amount  prepaid  only to  the  date  on  which  the principal
prepayment is applied to the principal balance thereof. To the extent  specified
in the applicable Prospectus Supplement, in order to mitigate the adverse effect
to  Certificateholders of a  Series resulting from the  prepayment of a Mortgage
Loan or a portion  thereof, the amount  of the aggregate  Servicing Fees may  be
offset by an amount equal to the related interest shortfall. Any such reductions
in the aggregate Servicing Fees will be made by the Servicer with respect to the
Mortgage  Loans under the applicable Underlying Servicing Agreement, but only to
the extent of the  aggregate amount of any  Servicing Fees otherwise payable  to
such  Servicer relating to mortgagor payments or other recoveries distributed on
the related Distribution Date.  The amount of any  offset against the  aggregate
Servicing  Fees will be  included in the  distributions to Certificateholders on
the Distribution  Date on  which the  related principal  prepayments are  passed
through to Certificateholders.
 
    Unless  such  an offset  against Servicing  Fees  with respect  to principal
prepayments or another form of offset is specified in the applicable  Prospectus
Supplement,  any interest shortfall arising from  full or partial prepayments or
liquidations will not be  so offset and will  be borne by Certificateholders  of
the applicable Series. See "Prepayment and Yield Considerations."
 
COLLECTION AND OTHER SERVICING PROCEDURES
 
    Each Servicer will be required by the related Underlying Servicing Agreement
to make reasonable efforts to collect all payments called for under the Mortgage
Loans and, consistent with the applicable Underlying Servicing Agreement and any
applicable  agreement governing any  form of credit  enhancement, to follow such
collection procedures as it follows with  respect to mortgage loans serviced  by
it  that are comparable  to the Mortgage  Loans. Consistent with  the above, the
Servicer may, in  its discretion,  (i) waive any  prepayment charge,  assumption
fee, late payment charge or any other
 
                                       47
<PAGE>
charge  in connection with  the prepayment of  a Mortgage Loan  and (ii) arrange
with a mortgagor a schedule for the liquidation of deficiencies running for  not
more  than 180 days (or such longer period  to which the Master Servicer and any
applicable Pool Insurer or  primary mortgage insurer  have consented) after  the
applicable Due Date.
 
    Under  each  Underlying Servicing  Agreement, each  Servicer, to  the extent
permitted by law, will establish and maintain one or more escrow accounts  (each
such  account,  a  "Servicing Account")  in  which  each such  Servicer  will be
required to  deposit any  payments  made by  mortgagors  in advance  for  taxes,
assessments,  primary mortgage (if applicable) and hazard insurance premiums and
other similar  items. Withdrawals  from the  Servicing Account  may be  made  to
effect  timely payment of taxes, assessments,  mortgage and hazard insurance, to
refund to  mortgagors amounts  determined to  be overages,  to pay  interest  to
mortgagors  on balances in the Servicing Account,  if required, and to clear and
terminate such account. Each Servicer will be responsible for the administration
of its  Servicing Account.  A  Servicer will  be  obligated to  advance  certain
amounts  which are  not timely  paid by  the mortgagors,  to the  extent that it
determines, in  good faith,  that  they will  be  recoverable out  of  insurance
proceeds,   liquidation  proceeds,  or  otherwise.  Alternatively,  in  lieu  of
establishing a Servicing Account, a Servicer  may procure a performance bond  or
other form of insurance coverage, in an amount acceptable to the Master Servicer
and  each Rating Agency rating the related Series of Certificates, covering loss
occasioned by the failure to escrow such amounts.
 
ENFORCEMENT OF DUE-ON-SALE CLAUSES; REALIZATION UPON DEFAULTED MORTGAGE LOANS
 
    With respect  to  each Mortgage  Loan  having  a fixed  interest  rate,  the
applicable  Underlying Servicing Agreement will generally provide that, when any
Mortgaged Property is about to be conveyed by the mortgagor, the Servicer  will,
to  the extent  it has  knowledge of  such prospective  conveyance, exercise its
rights to accelerate the maturity of such Mortgage Loan under the  "due-on-sale"
clause applicable thereto, if any, unless it is not exercisable under applicable
law  or if such exercise would result in loss of insurance coverage with respect
to such Mortgage Loan or would, in the Servicer's judgment, be reasonably likely
to result in litigation by the mortgagor and such Servicer has not obtained  the
Master  Servicer's consent  to such  exercise. In  either case,  the Servicer is
authorized to take or enter into  an assumption and modification agreement  from
or  with the person to whom  such Mortgaged Property has been  or is about to be
conveyed, pursuant to which such person  becomes liable under the Mortgage  Note
and,  unless prohibited  by applicable state  law, the  mortgagor remains liable
thereon, provided that the Mortgage Loan will continue to be covered by any pool
insurance policy  and any  related  primary mortgage  insurance policy  and  the
Mortgage  Interest Rate with respect to such Mortgage Loan and the payment terms
shall remain unchanged.  The Servicer will  also be authorized,  with the  prior
approval  of the pool insurer and the primary mortgage insurer, if any, to enter
into a substitution of liability agreement  with such person, pursuant to  which
the original mortgagor is released from liability and such person is substituted
as mortgagor and becomes liable under the Mortgage Note.
 
    Each Underlying Servicing Agreement and Pooling and Servicing Agreement with
respect  to a Series  will require the  Servicer or the  Master Servicer, as the
case may  be,  to present  claims  to the  insurer  under any  insurance  policy
applicable  to the Mortgage Loans  included in the Trust  Estate for such Series
and to take such reasonable steps as are necessary to permit recovery under such
insurance policies with respect  to defaulted Mortgage Loans,  or losses on  the
Mortgaged Property securing the Mortgage Loans.
 
    Each  Servicer  is  obligated  under  the  applicable  Underlying  Servicing
Agreement for each Series to realize upon defaulted Mortgage Loans in accordance
with its normal servicing  practices, which will conform  generally to those  of
prudent  mortgage lending institutions which service  mortgage loans of the same
type in the same jurisdictions.  Notwithstanding the foregoing, the Servicer  is
authorized  under the  applicable Underlying  Servicing Agreement  to permit the
assumption of a  defaulted Mortgage Loan  rather than to  foreclose or accept  a
deed-in-lieu  of  foreclosure if,  in the  Servicer's  judgment, the  default is
unlikely to  be  cured  and  the  assuming  borrower  meets  Norwest  Mortgage's
applicable  underwriting guidelines. In connection with any such assumption, the
Mortgage Interest Rate and the
 
                                       48
<PAGE>
payment terms of the  related Mortgage Note will  not be changed. Each  Servicer
may  also, with the consent of the  Master Servicer, modify the payment terms of
Mortgage Loans  that  are in  default,  or as  to  which default  is  reasonably
foreseeable,  that  remain in  the Trust  Estate rather  than foreclose  on such
Mortgage Loans; provided that no such modification shall forgive principal owing
under such  Mortgage  Loan or  permanently  reduce  the interest  rate  on  such
Mortgage Loan. Any such modification will be made only upon the determination by
the  Servicer  and  the Master  Servicer  that  such modification  is  likely to
increase the  proceeds of  such Mortgage  Loan over  the amount  expected to  be
collected pursuant to foreclosure. See also "The Pooling and Servicing Agreement
- --  Optional Purchases," above, with respect to the Seller's right to repurchase
Mortgage Loans  that  are in  default,  or as  to  which default  is  reasonably
foreseeable. Further, a Servicer may encourage the refinancing of such defaulted
Mortgage   Loans,  including  Mortgage  Loans  that  would  permit  creditworthy
borrowers to assume the outstanding indebtedness.
 
    In the case  of foreclosure or  of damage  to a Mortgaged  Property from  an
uninsured  cause, the Servicer will  not be required to  expend its own funds to
foreclose or restore any damaged  property, unless it reasonably determines  (i)
that   such   foreclosure  or   restoration  will   increase  the   proceeds  to
Certificateholders of  such Series  of liquidation  of the  Mortgage Loan  after
reimbursement  to  the related  Servicer  for its  expenses  and (ii)  that such
expenses  will  be  recoverable  to  it  through  Liquidation  Proceeds  or  any
applicable  insurance policy in respect of such Mortgage Loan. In the event that
Servicer has  expended its  own  funds for  foreclosure  or to  restore  damaged
property,  it will be entitled to be reimbursed from the Certificate Account for
such Series an amount equal to all costs and expenses incurred by it.
 
    Norwest Mortgage will not be obligated  to, and any other Servicer will  not
(except  with the express written approval of the Master Servicer), foreclose on
any Mortgaged Property which it believes may be contaminated with or affected by
hazardous wastes  or hazardous  substances. See  "Certain Legal  Aspects of  the
Mortgage  Loans  --  Environmental  Considerations."  If  a  Servicer  does  not
foreclose on a Mortgaged Property, the Certificateholders of the related  Series
may  experience a  loss on  the related  Mortgage Loan.  A Servicer  will not be
liable to  the  Certificateholders if  it  fails  to foreclose  on  a  Mortgaged
Property  which it  believes may  be so contaminated  or affected,  even if such
Mortgaged Property is, in fact, not  so contaminated or affected. Conversely,  a
Servicer  will not be liable  to the Certificateholders if,  based on its belief
that no  such contamination  or  effect exists,  the  Servicer forecloses  on  a
Mortgaged  Property and takes  title to such  Mortgaged Property, and thereafter
such Mortgaged Property is determined to be so contaminated or affected.
 
    The Servicer may  foreclose against property  securing a defaulted  Mortgage
Loan  either by foreclosure, by sale or by strict foreclosure and in the event a
deficiency judgment  is available  against the  mortgagor or  other person  (see
"Certain  Legal Aspects of the Mortgage Loans -- Anti-Deficiency Legislation and
Other Limitations on Lenders" for a discussion of the availability of deficiency
judgments), may proceed for the deficiency. It is anticipated that in most cases
the Servicer will not seek deficiency judgments, and will not be required  under
the  applicable Underlying Servicing Agreement  to seek deficiency judgments. In
lieu of foreclosure, each Servicer may arrange  for the sale by the borrower  of
the  Mortgaged Property related to  a defaulted Mortgage Loan  to a third party,
rather than foreclosing upon and selling such Mortgaged Property.
 
    With respect to a Trust Estate (or any segregated pool of assets therein) as
to which a REMIC election  has been made, if  the Trustee acquires ownership  of
any  Mortgaged  Property as  a  result of  a  default or  reasonably foreseeable
default of any Mortgage Loan secured by such Mortgaged Property, the Trustee  or
Master  Servicer will be required  to dispose of such  property within two years
following its acquisition by the Trust Estate unless the Trustee (a) receives an
opinion of counsel to the effect that  the holding of the Mortgaged Property  by
the  Trust Estate will  not cause the Trust  Estate to be subject  to the tax on
"prohibited transactions" imposed by Code Section 860F(a)(1) or cause the  Trust
Estate  (or any segregated pool of assets therein  as to which one or more REMIC
elections have been made or will be made)  to fail to qualify as a REMIC or  (b)
applies for and is granted an extension of the
two-year  period  in  the manner  contemplated  by Code  Section  856(e)(3). The
Servicer also will be
 
                                       49
<PAGE>
required to administer the Mortgaged Property  in a manner which does not  cause
the  Mortgaged Property to fail to  qualify as "foreclosure property" within the
meaning of Code Section 860G(a)(8) or result in the receipt by the Trust  Estate
of any "net income from foreclosure property" within the meaning of Code Section
860G(c)(2),  respectively. In  general, this would  preclude the  holding of the
Mortgaged Property by a party acting as a dealer in such property or the receipt
of rental  income based  on the  profits of  the lessee  of such  property.  See
"Certain Federal Income Tax Consequences."
 
INSURANCE POLICIES
 
    Each  Underlying Servicing  Agreement will  require the  related Servicer to
cause to be maintained for each Mortgage Loan a standard hazard insurance policy
issued by  a  generally acceptable  insurer  insuring the  improvements  on  the
Mortgaged  Property underlying  such Mortgage  Loan against  loss by  fire, with
extended  coverage  (a  "Standard  Hazard  Insurance  Policy").  The  Underlying
Servicing  Agreements will require that such Standard Hazard Insurance Policy be
in an amount at least equal to the lesser of 100% of the insurable value of  the
improvements on the Mortgaged Property or the principal balance of such Mortgage
Loan;  provided, however, that such  insurance may not be  less than the minimum
amount required to fully compensate for any damage or loss on a replacement cost
basis. Each Servicer will also  maintain on property acquired upon  foreclosure,
or  deed  in  lieu of  foreclosure,  of  any Mortgage  Loan,  a  Standard Hazard
Insurance Policy in an amount  that is at least equal  to the lesser of 100%  of
the insurable value of the improvements which are a part of such property or the
principal  balance of such  Mortgage Loan plus  accrued interest and liquidation
expenses; provided,  however, that  such  insurance may  not  be less  than  the
minimum  amount  required  to fully  compensate  for  any damage  or  loss  on a
replacement cost basis.  Any amounts  collected under any  such policies  (other
than  amounts  to be  applied  to the  restoration  or repair  of  the Mortgaged
Property or  released  to  the  borrower in  accordance  with  normal  servicing
procedures)  will be deposited in the  Servicer Custodial Account for remittance
to the Certificate Account by a Servicer.
 
    The Standard Hazard Insurance Policies covering the Mortgage Loans generally
will cover  physical damage  to,  or destruction  of,  the improvements  on  the
Mortgaged Property caused by fire, lightning, explosion, smoke, windstorm, hail,
riot,  strike  and civil  commotion, subject  to  the conditions  and exclusions
particularized in each  policy. Because the  Standard Hazard Insurance  Policies
relating  to such Mortgage Loans will  be underwritten by different insurers and
will cover Mortgaged Properties  located in various  states, such policies  will
not  contain identical terms and conditions. The most significant terms thereof,
however, generally  will  be determined  by  state  law and  generally  will  be
similar.  Most  such  policies  typically will  not  cover  any  physical damage
resulting from the following: war, revolution, governmental actions, floods  and
other  water-related causes,  earth movement  (including earthquakes, landslides
and mudflows), nuclear  reaction, wet or  dry rot, vermin,  rodents, insects  or
domestic  animals,  hazardous  wastes  or hazardous  substances,  theft  and, in
certain cases, vandalism.  The foregoing  list is merely  indicative of  certain
kinds of uninsured risks and is not all-inclusive.
 
    In  general, if the improvements  on a Mortgaged Property  are located in an
area identified  in the  Federal Register  by the  Federal Emergency  Management
Agency  as having special flood hazards (and  such flood insurance has been made
available) each Underlying Servicing Agreement will require the related Servicer
to cause to be maintained a  flood insurance policy meeting the requirements  of
the  current guidelines of the Federal Insurance Administration with a generally
acceptable insurance carrier. Generally, the Underlying Servicing Agreement will
require that such flood insurance be in an amount not less than the least of (i)
the outstanding principal balance of the Mortgage Loan, (ii) the full  insurable
value  of the improvements,  or (iii) the  maximum amount of  insurance which is
available under the Flood Disaster Protection  Act of 1973, as amended.  Norwest
Mortgage  does  not  provide  financing for  flood  zone  properties  located in
communities not  participating in  the National  Flood Insurance  Program or  if
available insurance coverage is, in its judgment, unrealistically low.
 
    Each  Servicer may maintain a blanket  policy insuring against hazard losses
on all of the Mortgaged Properties in lieu of maintaining the required  Standard
Hazard  Insurance Policies  and may maintain  a blanket  policy insuring against
special   hazards    in    lieu    of    maintaining    any    required    flood
 
                                       50
<PAGE>
insurance. Each Servicer will be liable for the amount of any deductible under a
blanket  policy if such  amount would have  been covered by  a required Standard
Hazard Insurance Policy or flood insurance, had it been maintained.
 
    Any losses incurred with  respect to Mortgage Loans  due to uninsured  risks
(including  earthquakes,  mudflows,  floods and  hazardous  wastes  or hazardous
substances) or  insufficient hazard  insurance  proceeds will  adversely  affect
distributions to the Certificateholders.
 
FIXED RETAINED YIELD, SERVICING COMPENSATION AND PAYMENT OF EXPENSES
 
    Fixed  Retained Yield with respect to any  Mortgage Loan is that portion, if
any, of interest  at the  Mortgage Interest  Rate that  is not  included in  the
related  Trust  Estate.  The Prospectus  Supplement  for a  Series  will specify
whether there is any Fixed Retained Yield with respect to the Mortgage Loans  of
such  Series.  If  so,  the  Fixed  Retained  Yield  will  be  established  on a
loan-by-loan basis  and will  be specified  in the  schedule of  Mortgage  Loans
attached  as  an  exhibit to  the  applicable Pooling  and  Servicing Agreement.
Norwest Mortgage as Servicer may deduct the Fixed Retained Yield from  mortgagor
payments  as received  and prior  to deposit  of such  payments in  the Servicer
Custodial Account or Certificate  Account for such Series  or may withdraw  from
the  Servicer Custodial  Account or Certificate  Account, or  request the Master
Servicer to  withdraw from  the Certificate  Account for  remittance to  Norwest
Mortgage as Servicer, the Fixed Retained Yield after the entire payment has been
deposited  in such account.  Notwithstanding the foregoing,  with respect to any
payment of  interest received  by Norwest  Mortgage as  Servicer relating  to  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, the  owner of the  Fixed
Retained  Yield with respect to such Mortgage  Loan will bear a ratable share of
such interest shortfall.
 
    For each Series of Certificates, each  Servicer will be entitled to be  paid
the  Servicing Fee on the related Mortgage Loans serviced by such Servicer until
termination of the  applicable Underlying Servicing  Agreement, subject, to  the
extent  specified  in the  applicable  Prospectus Supplement,  to  adjustment as
described above under "-- Adjustment to Servicing Fee in Connection with Prepaid
Mortgage Loans." A Servicer, at its election, will pay itself the Servicing  Fee
for a Series with respect to each Mortgage Loan by (a) withholding the Servicing
Fee  from any scheduled payment of interest  prior to deposit of such payment in
the Servicer Custodial Account for such Series or (b) withdrawing the  Servicing
Fee  from the Servicer  Custodial Account after the  entire interest payment has
been deposited  in such  account. A  Servicer may  also pay  itself out  of  the
Liquidation  Proceeds  of  a  Mortgage Loan  or  other  recoveries  with respect
thereto, or withdraw from the Servicer  Custodial Account or request the  Master
Servicer to withdraw from the Certificate Account for remittance to the Servicer
such  amounts after the deposit thereof in such accounts, or if such Liquidation
Proceeds or other recoveries are insufficient, from Net Foreclosure Profits with
respect to the related  Distribution Date the Servicing  Fee in respect of  such
Mortgage  Loan to  the extent provided  in the applicable  Pooling and Servicing
Agreement. The Servicing Fee or the range of Servicing Fees with respect to  the
Mortgage  Loans underlying the Certificates of a Series will be specified in the
applicable Prospectus Supplement. Additional servicing compensation in the  form
of  prepayment charges, assumption fees, late  payment charges or otherwise will
be retained by the Servicers.
 
    Each Servicer  will  pay  all  expenses  incurred  in  connection  with  the
servicing  of the Mortgage Loans serviced  by such Servicer underlying a Series,
including, without limitation, payment of the hazard insurance policy  premiums.
The  Servicer will be entitled, in  certain circumstances, to reimbursement from
the Certificate Account of  Periodic Advances, of Other  Advances made by it  to
pay  taxes, insurance premiums  and similar items with  respect to any Mortgaged
Property or for expenditures incurred by  it in connection with the  restoration
or  foreclosure of any Mortgaged Property (to the extent of Liquidation Proceeds
or insurance  policy proceeds  in respect  of such  Mortgaged Property)  and  of
certain losses against which it is indemnified by the Trust Estate.
 
    As  set forth  in the  preceding paragraph,  a Servicer  may be  entitled to
reimbursement for certain  expenses incurred  by it, and  payment of  additional
fees for certain extraordinary services rendered by
 
                                       51
<PAGE>
it  (provided that such fees do not exceed those which would be charged by third
parties for similar services)  in connection with  the liquidation of  defaulted
Mortgage  Loans. In the event  that claims are either not  made or are not fully
paid from any applicable  form of credit enhancement,  the related Trust  Estate
will  suffer a loss to the extent that Liquidation Proceeds, after reimbursement
of the  Servicing Fee  and  the expenses  of the  Servicer,  are less  than  the
principal balance of the related Mortgage Loan.
 
EVIDENCE AS TO COMPLIANCE
 
    Each  Servicer will deliver  annually to the Trustee  or Master Servicer, as
applicable, on  or  before  the  date specified  in  the  applicable  Underlying
Servicing  Agreement, an Officer's Certificate stating  that (i) a review of the
activities  of  such  Servicer  during  the  preceding  calendar  year  and   of
performance  under the applicable  Underlying Servicing Agreement  has been made
under the supervision of such  officer, and (ii) to  the best of such  officer's
knowledge, based on such review, such Servicer has fulfilled all its obligations
under the applicable Underlying Servicing Agreement throughout such year, or, if
there  has been a default in the  fulfillment of any such obligation, specifying
each such default known to such officer and the nature and status thereof.  Such
Officer's  Certificate  shall  be  accompanied  by  a  statement  of  a  firm of
independent  public  accountants  to  the  effect  that,  on  the  basis  of  an
examination  of certain documents and records relating to a random sample of the
mortgage loans  being serviced  by  such Servicer  pursuant to  such  Underlying
Servicing  Agreement and/or other similar agreements, conducted substantially in
compliance with  the Uniform  Single  Audit Program  for Mortgage  Bankers,  the
servicing of such mortgage loans was conducted in compliance with the provisions
of  the applicable Underlying Servicing  Agreement and other similar agreements,
except for (i) such exceptions as such  firm believes to be immaterial and  (ii)
such other exceptions as are set forth in such statement.
 
    Each  year the Master Servicer will review each Servicer's performance under
its Underlying  Servicing Agreement  and the  status of  any fidelity  bond  and
errors and omissions policy required to be maintained by such Servicer under the
Underlying Servicing Agreement.
 
                 CERTAIN MATTERS REGARDING THE MASTER SERVICER
 
    The Master Servicer may not resign from its obligations and duties under the
Pooling  and  Servicing Agreement  for each  Series without  the consent  of the
Trustee, except upon its determination that its duties thereunder are no  longer
permissible  under  applicable law  or  are in  material  conflict by  reason of
applicable law with any other activities of a type and nature carried on by  it.
No such resignation will become effective until the Trustee for such Series or a
successor  master  servicer has  assumed the  Master Servicer's  obligations and
duties under the Pooling and Servicing Agreement. If the Master Servicer resigns
for any of  the foregoing  reasons and  the Trustee  is unable  or unwilling  to
assume  responsibility for its duties under the Pooling and Servicing Agreement,
it may appoint another institution to so act as described under "The Pooling and
Servicing Agreement -- Rights Upon Event of Default" below.
 
    The Pooling  and Servicing  Agreement  will also  provide that  neither  the
Master  Servicer  nor any  subcontractor,  nor any  partner,  director, officer,
employee or agent  of any  of them,  will be under  any liability  to the  Trust
Estate or the Certificateholders, for the taking of any action or for refraining
from  the  taking  of any  action  in good  faith  pursuant to  the  Pooling and
Servicing Agreement, or for errors in judgment; provided, however, that  neither
the  Master Servicer, any  subcontractor, nor any such  person will be protected
against any  liability that  would otherwise  be imposed  by reason  of  willful
misfeasance,  bad faith  or gross  negligence in the  performance of  his or its
duties or by reason of reckless disregard  of his or its obligations and  duties
thereunder.  The Pooling and  Servicing Agreement will  further provide that the
Master Servicer, any subcontractor, and any partner, director, officer, employee
or agent of either  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  the Pooling  and Servicing
Agreement  or   the   Certificates,   other  than   any   loss,   liability   or
 
                                       52
<PAGE>
expense incurred by reason of willful misfeasance, bad faith or gross negligence
in  the performance  of his or  its duties  thereunder or by  reason of reckless
disregard of his  or its  obligations and  duties thereunder.  In addition,  the
Pooling  and Servicing Agreement will provide  that the Master Servicer will not
be under any obligation to appear in, prosecute or defend any legal action  that
is  not incidental to its  duties under the Pooling  and Servicing Agreement and
that in its  opinion may  involve it  in any  expense or  liability. The  Master
Servicer may, however, in its discretion, undertake any such action deemed by it
necessary  or desirable with respect to  the Pooling and Servicing Agreement and
the rights  and  duties  of  the  parties  thereto  and  the  interests  of  the
Certificateholders  thereunder. In such  event, the legal  expenses and costs of
such action and any  liability resulting therefrom will  be expenses, costs  and
liabilities  of the Trust Estate and the  Master Servicer will be entitled to be
reimbursed therefor out of  the Certificate Account, and  any loss to the  Trust
Estate  arising from such right of reimbursement  will be allocated first to the
Subordinated Certificate  of a  Series  before being  allocated to  the  related
Senior   Certificates,  or  if   such  Series  does   not  contain  Subordinated
Certificates,  pro  rata  among  the  various  Classes  of  Certificates  unless
otherwise specified in the applicable Pooling and Servicing Agreement.
 
    Any  person into which the Master Servicer may be merged or consolidated, or
any person resulting from any merger,  conversion or consolidation to which  the
Master Servicer is a party, or any person succeeding to the business through the
transfer  of substantially  all of  its assets  or all  assets relating  to such
business, or otherwise,  of the  Master Servicer will  be the  successor of  the
Master  Servicer  under  the Pooling  and  Servicing Agreement  for  each Series
provided that such successor  or resulting entity  has a net  worth of not  less
than $15,000,000 and is qualified to service mortgage loans for FNMA or FHLMC.
 
    The Master Servicer also has the right to assign its rights and delegate its
duties  and  obligations  under the  Pooling  and Servicing  Agreement  for each
Series; provided that, if  the Master Servicer desires  to be released from  its
obligations  under the  Pooling and  Servicing Agreement,  (i) the  purchaser or
transferee accepting  such  assignment or  delegation  is qualified  to  service
mortgage  loans for  FNMA or  FHLMC, (ii) the  purchaser is  satisfactory to the
Trustee for  such  Series, in  the  reasonable  exercise of  its  judgment,  and
executes  and  delivers  to the  Trustee  an  agreement, in  form  and substance
reasonably satisfactory to  the Trustee,  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
under  the  Pooling and  Servicing Agreement  from  and after  the date  of such
agreement; and (iii) each applicable Rating Agency's rating of any  Certificates
for such Series in effect immediately prior to such assignment, sale or transfer
would  not be qualified, downgraded or withdrawn as a result of such assignment,
sale or  transfer and  the Certificates  would not  be placed  on credit  review
status  by any such Rating Agency. The Master Servicer will be released from its
obligations under the Pooling and  Servicing Agreement upon any such  assignment
and  delegation,  except that  the Master  Servicer will  remain liable  for all
liabilities and obligations incurred by it prior to the time that the conditions
contained in clauses (i), (ii) and (iii) above are met.
 
                      THE POOLING AND SERVICING AGREEMENT
 
ASSIGNMENT OF MORTGAGE LOANS TO THE TRUSTEE
 
    The Seller will  have acquired  the Mortgage  Loans included  in each  Trust
Estate  from Norwest  Mortgage pursuant to  an agreement  (the "Norwest Mortgage
Sale Agreement"). In connection with the conveyance of the Mortgage Loans to the
Seller, Norwest Mortgage  will (i) agree  to deliver  to the Seller  all of  the
documents  which the  Seller is  required to deliver  to the  Trustee; (ii) make
certain representations and warranties to the Seller which will be the basis  of
certain  of the Seller's representations and warranties to the Trustee or assign
the representations and warranties made by a Correspondent to Norwest  Mortgage;
and  (iii) agree to repurchase  or substitute (or assign  rights to a comparable
agreement of a Correspondent)  for any Mortgage Loan  for which any document  is
not  delivered or is found to be defective  in any material respect, or which is
discovered at any  time not to  be in conformance  with the representations  and
warranties Norwest Mortgage has made to the Seller,
 
                                       53
<PAGE>
if  Norwest Mortgage cannot deliver such document  or cure such defect or breach
within 60 days after notice thereof. Such agreement will inure to the benefit of
the Trustee  and is  intended to  help ensure  the Seller's  performance of  its
limited  obligation to  repurchase or  substitute for  Mortgage Loans.  See "The
Mortgage Loan Programs -- Representations and Warranties" above.
 
    At the time of issuance of  each Series of Certificates, the Mortgage  Loans
in  the  related  Trust Estate  will,  pursuant  to the  applicable  Pooling and
Servicing Agreement, be assigned to the Trustee, together with all principal and
interest received on or with respect to such Mortgage Loans after the applicable
Cut-Off Date other than principal and interest due and payable on or before such
Cut-Off Date  and interest  attributable to  the Fixed  Retained Yield  on  such
Mortgage  Loans, if any. See "Servicing of  the Mortgage Loans -- Fixed Retained
Yield, Servicing Compensation and Payment of Expenses." The Trustee or its agent
will,  concurrently  with   such  assignment,  authenticate   and  deliver   the
Certificates  evidencing such Series to the  Seller in exchange for the Mortgage
Loans. Each  Mortgage Loan  will be  identified in  a schedule  appearing as  an
exhibit  to the applicable  Pooling and Servicing  Agreement. Each such schedule
will include, among other things, the  unpaid principal balance as of the  close
of  business on the applicable Cut-Off Date,  the maturity date and the Mortgage
Interest Rate for each Mortgage Loan in the related Trust Estate.
 
    In addition,  with respect  to each  Mortgage Loan  in a  Trust Estate,  the
mortgage or other promissory note, any assumption, modification or conversion to
fixed  interest rate agreement, a mortgage assignment in recordable form and the
recorded Mortgage (or other  documents as are required  under applicable law  to
create  perfected security  interest in the  Mortgaged Property in  favor of the
Trustee) will be  delivered to the  Trustee or, if  indicated in the  applicable
Prospectus  Supplement,  to  a  custodian;  provided  that,  in  instances where
recorded documents  cannot  be  delivered  due  to  delays  in  connection  with
recording,  copies  thereof, certified  by the  Seller to  be true  and complete
copies of such documents sent for  recording, may be delivered and the  original
recorded  documents will be  delivered promptly upon  receipt. The assignment of
each  Mortgage  will  be  recorded  promptly  after  the  initial  issuance   of
Certificates  for  the related  Trust  Estate, except  in  states where,  in the
opinion of counsel acceptable to the Trustee, such recording is not required  to
protect  the Trustee's interest  in the Mortgage  Loan against the  claim of any
subsequent transferee or  any successor to  or creditor of  the Seller,  Norwest
Mortgage or the originator of such Mortgage Loan.
 
    The  Trustee or custodian will hold such  documents in trust for the benefit
of Certificateholders  of the  related  Series and  will review  such  documents
within  180 days of the date of  the applicable Pooling and Servicing Agreement.
If any document is  not delivered or  is found to be  defective in any  material
respect,  or  if the  Seller  is in  breach of  any  of its  representations and
warranties, and such breach  materially and adversely  affects the interests  of
the  Certificateholders in a  Mortgage Loan, and the  Seller cannot deliver such
document or  cure such  defect or  breach within  60 days  after written  notice
thereof,  the Seller will, within 60 days  of such notice, either repurchase the
related Mortgage Loan  from the  Trustee at  a price  equal to  the then  unpaid
principal  balance thereof, plus  accrued and unpaid  interest at the applicable
Mortgage Interest Rate (minus any Fixed Retained Yield) through the last day  of
the  month in which such repurchase takes place, or (in the case of a Series for
which one or more REMIC elections have been or will be made, unless the  maximum
period  as  may  be  provided  by the  Code  or  applicable  regulations  of the
Department of the Treasury ("Treasury Regulations") shall have elapsed since the
execution of the applicable Pooling and Servicing Agreement) substitute for such
Mortgage  Loan  a  new  mortgage  loan  having  characteristics  such  that  the
representations  and warranties  of the Seller  made pursuant  to the applicable
Pooling and Servicing Agreement (except for representations and warranties as to
the correctness of  the applicable schedule  of mortgage loans)  would not  have
been  incorrect had  such substitute  Mortgage Loan  originally been  a Mortgage
Loan. In the case  of a repurchased  Mortgage Loan, the  purchase price will  be
deposited  by the Seller  in the related  Certificate Account. In  the case of a
substitute Mortgage Loan, the mortgage  file relating thereto will be  delivered
to  the Trustee or the custodian and  the Seller will deposit in the Certificate
Account, an amount equal to  the excess of (i)  the unpaid principal balance  of
the  Mortgage  Loan which  is substituted  for, over  (ii) the  unpaid principal
balance of the substitute Mortgage Loan, together with
 
                                       54
<PAGE>
interest on such excess at the Mortgage Interest Rate (minus any Fixed  Retained
Yield)  to  the next  scheduled Due  Date of  the Mortgage  Loan which  is being
substituted for. In no  event will any substitute  Mortgage Loan have an  unpaid
principal  balance greater  than the  scheduled principal  balance calculated in
accordance with the amortization schedule (the "Scheduled Principal Balance") of
the Mortgage  Loan for  which it  is  substituted (after  giving effect  to  the
scheduled  principal payment  due in the  month of substitution  on the Mortgage
Loan substituted for),  or a term  greater than, a  Mortgage Interest Rate  less
than, a Mortgage Interest Rate more than one percent per annum greater than or a
Loan-to-Value Ratio greater than, the Mortgage Loan for which it is substituted.
If  substitution  is  to be  made  for  an adjustable  rate  Mortgage  Loan, the
substitute Mortgage Loan will have an  unpaid principal balance no greater  than
the Scheduled Principal Balance of the Mortgage Loan for which it is substituted
(after  giving effect  to the  scheduled principal payment  due in  the month of
substitution on the Mortgage Loan  substituted for), a Loan-to-Value Ratio  less
than  or equal to, and a  Mortgage Interest Rate at least  equal to, that of the
Mortgage Loan for which it is substituted,  and will bear interest based on  the
same index, margin and frequency of adjustment as the substituted Mortgage Loan.
The  repurchase obligation and the mortgage  substitution referred to above will
constitute the sole remedies available to the Certificateholders or the  Trustee
with  respect  to  missing or  defective  documents  or breach  of  the Seller's
representations and warranties.
 
    If no custodian is named in the Pooling and Servicing Agreement, the Trustee
will be  authorized  to  appoint  a custodian  to  maintain  possession  of  the
documents  relating to  the Mortgage  Loans and  to conduct  the review  of such
documents described above. Any custodian so appointed will keep and review  such
documents as the Trustee's agent under a custodial agreement.
 
OPTIONAL PURCHASES
 
    Subject to the provisions of the applicable Pooling and Servicing Agreement,
the  Seller or the Master  Servicer may, at such  party's option, repurchase any
Mortgage Loan  which  is  in  default  or as  to  which  default  is  reasonably
foreseeable  if, in the Seller's or  the Master Servicer's judgment, the related
default is not likely to be cured by the borrower or default is not likely to be
averted, at a price equal to  the unpaid principal balance thereof plus  accrued
interest thereon and under the conditions set forth in the applicable Prospectus
Supplement.
 
REPORTS TO CERTIFICATEHOLDERS
 
    Unless  otherwise specified or modified in the related Pooling and Servicing
Agreement for each Series, the Master Servicer will prepare and the Trustee will
include with each distribution to Certificateholders of record of such Series  a
statement setting forth the following information, if applicable:
 
           (i)
           the amount of such distribution allocable to principal of the related
           Mortgage  Loans, separately  identifying the aggregate  amount of any
    principal prepayments  included therein,  the  amount of  such  distribution
    allocable to interest on the related Mortgage Loans and the aggregate unpaid
    principal balance of the Mortgage Loans evidenced by each Class after giving
    effect to the principal distributions on such Distribution Date;
 
          (ii)
           the  amount  of servicing  compensation with  respect to  the related
           Trust Estate and such other  customary information as is required  to
    enable Certificateholders to prepare their tax returns;
 
         (iii)
           the  amount by which  the Servicing Fee  for the related Distribution
           Date has been reduced by interest shortfalls due to prepayments;
 
          (iv)
           the aggregate amount of  any Periodic Advances  by the Servicer,  the
           Master  Servicer  or the  Trustee  included in  the  amounts actually
    distributed to the Certificateholders;
 
                                       55
<PAGE>
           (v)
           to each holder of a Certificate entitled to the benefits of  payments
           under any form of credit enhancement or from any Reserve Fund:
 
              (a)
               the  amounts  so  distributed  under  any  such  form  of  credit
               enhancement or  from  any such  Reserve  Fund on  the  applicable
       Distribution Date; and
 
              (b)
               the  amount of coverage  remaining under any  such form of credit
               enhancement and  the  balance in  any  such Reserve  Fund,  after
       giving  effect  to  any  payments thereunder  and  other  amounts charged
       thereto on the Distribution Date;
 
          (vi)
           in the case of a Series of Certificates with a variable  Pass-Through
           Rate, such Pass-Through Rate;
 
         (vii)
           the book value of any collateral acquired by the Trust Estate through
           foreclosure or otherwise;
 
        (viii)
           the  unpaid principal  balance of any  Mortgage Loan as  to which the
           Servicer has  notified the  Master Servicer  that such  Servicer  has
    determined  not  to  foreclose  because it  believes  the  related Mortgaged
    Property may  be  contaminated  with  or affected  by  hazardous  wastes  or
    hazardous substances; and
 
          (ix)
           the  number  and aggregate  principal  amount of  Mortgage  Loans one
           month, two months and three or more months delinquent.
 
    In addition,  within a  reasonable period  of  time after  the end  of  each
calendar  year, the Master Servicer will furnish either directly, or through the
Trustee, a report to  each Certificateholder of record  at any time during  such
calendar   year  such  information  as  required  by  the  Code  and  applicable
regulations  thereunder  to  enable  Certificateholders  to  prepare  their  tax
returns.  In the event that an election has  been made to treat the Trust Estate
(or one or more segregated pools of assets therein) as a REMIC, the Trustee will
be required  to sign  the federal  and  applicable state  and local  income  tax
returns  of  the REMIC  (which will  be  prepared by  the Master  Servicer). See
"Certain Federal Income Tax Consequences -- Administrative Matters."
 
LIST OF CERTIFICATEHOLDERS
 
    The Pooling and Servicing Agreement for each Series will require the Trustee
to  provide  access  to  the  most  current  list  of  names  and  addresses  of
Certificateholders   of   such   Series   to  any   group   of   five   or  more
Certificateholders who  advise  the  Trustee  in writing  that  they  desire  to
communicate with other Certificateholders with respect to their rights under the
Pooling and Servicing Agreement or under the Certificates.
 
EVENTS OF DEFAULT
 
    Events  of Default under the Pooling and Servicing Agreement for each Series
include (i) any failure by the Master Servicer to make a required deposit  which
continues  unremedied for three business days after the giving of written notice
of such failure to the Master Servicer by the Trustee for such Series, or to the
Master Servicer and the  Trustee by the holders  of Certificates of such  Series
having  voting  rights  allocated  to  such  Certificates  ("Voting  Interests")
aggregating not  less  than  25%  of  the  Voting  Interests  allocated  to  all
Certificates  for such Series; (ii)  any failure by the  Master Servicer duly to
observe or  perform  in any  material  respect any  other  of its  covenants  or
agreements in the Pooling and Servicing Agreement which continues unremedied for
60  days (or 30  days in the  case of a  failure to maintain  any pool insurance
policy  required  to  be  maintained  pursuant  to  the  Pooling  and  Servicing
Agreement)  after the  giving of  written notice of  such failure  to the Master
Servicer by  the Trustee,  or to  the Master  Servicer and  the Trustee  by  the
holders  of Certificates aggregating not less  than 25% of the Voting Interests;
(iii) certain events of insolvency,  readjustment of debt, marshaling of  assets
and liabilities or similar proceedings and certain action by the Master Servicer
indicating  its insolvency, reorganization  or inability to  pay its obligations
and (iv) it and any subservicer  appointed by it becoming ineligible to  service
for both FNMA and FHLMC (unless remedied within 90 days). (Section 7.01).
 
                                       56
<PAGE>
RIGHTS UPON EVENT OF DEFAULT
 
    So  long as  an Event  of Default remains  unremedied under  the Pooling and
Servicing Agreement for  a Series,  the Trustee for  such Series  or holders  of
Certificates  of such  Series evidencing  not less  than 66  2/3% of  the Voting
Interests in the Trust Estate  for such Series may  terminate all of the  rights
and obligations of the Master Servicer under the Pooling and Servicing Agreement
and  in and  to the Mortgage  Loans (other  than the Master  Servicer's right to
recovery of  the  aggregate Master  Servicing  Fees due  prior  to the  date  of
termination,  and other expenses  and amounts advanced pursuant  to the terms of
the Pooling  and Servicing  Agreement,  which rights  the Master  Servicer  will
retain  under all circumstances), whereupon the  Trustee will succeed to all the
responsibilities, duties  and  liabilities  of the  Master  Servicer  under  the
Pooling and Servicing Agreement and will be entitled to monthly compensation not
to   exceed  the  aggregate  Master  Servicing  Fees  together  with  the  other
compensation to which  the Master  Servicer is  entitled under  the Pooling  and
Servicing  Agreement. In the event that the Trustee is unwilling or unable so to
act, it  may select,  pursuant to  the  public bid  procedure described  in  the
applicable  Pooling and  Servicing Agreement, or  petition a  court of competent
jurisdiction to  appoint,  a  housing  and home  finance  institution,  bank  or
mortgage  servicing institution with a net worth  of at least $10,000,000 to act
as successor to  the Master  Servicer under the  provisions of  the Pooling  and
Servicing  Agreement;  provided  however,  that until  such  a  successor Master
Servicer  is  appointed  and  has  assumed  the  responsibilities,  duties   and
liabilities  of the Master  Servicer under the  Pooling and Servicing Agreement,
the Trustee shall continue as the successor to the Master Servicer as  described
above.  In the event such public bid  procedure is utilized, the successor would
be entitled to compensation in an amount equal to the aggregate Master Servicing
Fees, together  with the  other compensation  to which  the Master  Servicer  is
entitled  under the  Pooling and  Servicing Agreement,  and the  Master Servicer
would be entitled to receive the net profits, if any, realized from the sale  of
its  rights and obligations under the Pooling and Servicing Agreement. (Sections
7.01 and 7.05).
 
    During the  continuance  of any  Event  of  Default under  the  Pooling  and
Servicing  Agreement for  a Series,  the Trustee for  such Series  will have the
right to take  action to  enforce its  rights and  remedies and  to protect  and
enforce  the rights and  remedies of the Certificateholders  of such Series, and
holders of Certificates evidencing not less than 25% of the Voting Interests for
such Series 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.  However,  the  Trustee  will  not  be  under  any
obligation to pursue any such remedy or to exercise any of such trusts or powers
unless  such Certificateholders have offered  the Trustee reasonable security or
indemnity against the cost,  expenses and liabilities which  may be incurred  by
the  Trustee thereby. Also, the Trustee may decline to follow any such direction
if the Trustee  determines that  the action or  proceeding so  directed may  not
lawfully  be taken  or would  involve it  in personal  liability or  be unjustly
prejudicial to the non-assenting Certificateholders. (Sections 7.02 and 7.03).
 
    No Certificateholder of a Series, solely  by virtue of such holder's  status
as  a Certificateholder,  will have  any right  under the  Pooling and Servicing
Agreement for  such Series  to  institute any  proceeding  with respect  to  the
Pooling  and Servicing Agreement, unless such holder previously has given to the
Trustee for such  Series written  notice of default  and unless  the holders  of
Certificates  evidencing  not less  than 25%  of the  Voting Interests  for such
Series have made written request upon  the Trustee to institute such  proceeding
in its own name as Trustee thereunder and have offered to the Trustee reasonable
indemnity  and the Trustee for 60 days has neglected or refused to institute any
such proceeding. (Section 10.03).
 
AMENDMENT
 
    Each Pooling  and Servicing  Agreement may  be amended  by the  Seller,  the
Master  Servicer and the Trustee without  the consent of the Certificateholders,
(i) to  cure  any  ambiguity or  mistake,  (ii)  to correct  or  supplement  any
provision  therein that  may be inconsistent  with any  other provision 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 (or one or
more segregated  pools of  assets therein)  as a  REMIC at  all times  that  any
Certificates   are  outstanding  or  to  avoid  or  minimize  the  risk  of  the
 
                                       57
<PAGE>
imposition  of any tax on the Trust Estate  pursuant to the Code that would be a
claim against  the Trust  Estate,  provided that  the  Trustee has  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  such action  will 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
Certificate Account, provided  that such  change will  not, as  evidenced by  an
opinion  of counsel, adversely  affect in any material  respect the interests of
any Certificateholder and that  such change will not  adversely affect the  then
current  rating assigned to any Certificates, as evidenced by a letter from each
Rating Agency to such effect, (v) to add to, modify or eliminate any  provisions
therein  restricting transfers of residual  Certificates to certain disqualified
organizations described below under "Certain Federal Income Tax Consequences  --
Federal  Income Tax Consequences for REMIC  Certificates -- Taxation of Residual
Certificates -- Tax-Related Restrictions on Transfer of Residual  Certificates,"
(vi)  to make certain provisions  with respect to the  denominations of, and the
manner of payments on, certain  Classes or Subclasses of Certificates  initially
retained  by the Seller or  an affiliate, or (vii)  to make any other provisions
with respect to matters  or questions arising under  such Pooling and  Servicing
Agreement  that are not inconsistent with  the provisions thereof, provided that
such action will not, as evidenced by an opinion of counsel, adversely affect in
any material  respect the  interests of  the Certificateholders  of the  related
Series.  The Pooling and Servicing Agreement may  also be amended by the Seller,
the Master  Servicer  and  the  Trustee  with the  consent  of  the  holders  of
Certificates  evidencing  interests aggregating  not less  than  66 2/3%  of the
Voting Interests  evidenced  by  the  Certificates of  each  Class  or  Subclass
affected thereby, for the purpose of adding any provisions to or changing in any
manner  or  eliminating any  of  the provisions  of  such Pooling  and Servicing
Agreement or of modifying  in any manner the  rights of the  Certificateholders;
provided,  however, that  no such  amendment may  (i) reduce  in any  manner the
amount of, or delay the timing of,  any payments received on or with respect  to
Mortgage  Loans that are required to be distributed on any Certificates, without
the consent of  the holder  of such Certificate,  (ii) adversely  affect in  any
material  respect  the  interests of  the  holders  of a  Class  or  Subclass of
Certificates of a  Series in a  manner other than  that set forth  in (i)  above
without  the consent  of the holders  of Certificates aggregating  not less than
66 2/3% of the Voting  Interests evidenced by such  Class or Subclass, or  (iii)
reduce  the aforesaid percentage  of Certificates of any  Class or Subclass, the
holders of which are required to consent to such amendment, without the  consent
of  the holders  of all  Certificates of  such Class  or Subclass  affected then
outstanding. Notwithstanding the foregoing, the Trustee will not consent to  any
such  amendment  if  such  amendment  would subject  the  Trust  Estate  (or any
segregated pool of  assets therein) to  tax or  cause the Trust  Estate (or  any
segregated pool of assets therein) to fail to qualify as a REMIC.
 
TERMINATION; OPTIONAL PURCHASE OF MORTGAGE LOANS
 
    The  obligations created by the Pooling and Servicing Agreement for a Series
of Certificates  will terminate  on the  Distribution Date  following the  final
payment  or other liquidation of the last  Mortgage Loan subject thereto and the
disposition of all property acquired upon foreclosure of any such Mortgage Loan.
In no  event, however,  will the  trust  created by  the Pooling  and  Servicing
Agreement  continue beyond the expiration of 21 years from the death of the last
survivor of certain persons named in  such Pooling and Servicing Agreement.  For
each Series of Certificates, the Trustee will give written notice of termination
of  the Pooling and Servicing Agreement to each Certificateholder, and the final
distribution  will  be  made  only  upon  surrender  and  cancellation  of   the
Certificates at an office or agency appointed by the Seller and specified in the
notice of termination.
 
    If  so provided  in the  applicable Prospectus  Supplement, the  Pooling and
Servicing Agreement  for  each  Series  of Certificates  will  permit,  but  not
require, the Seller, Norwest Mortgage or such other party as is specified in the
applicable  Prospectus Supplement,  to purchase from  the Trust  Estate for such
Series all  remaining Mortgage  Loans at  the time  subject to  the Pooling  and
Servicing  Agreement at a price specified  in such Prospectus Supplement. In the
event that such  party has caused  the related Trust  Estate (or any  segregated
pool   of  assets  therein)  to  be  treated  as  a  REMIC,  any  such  purchase
 
                                       58
<PAGE>
will be effected only pursuant to  a "qualified liquidation" as defined in  Code
Section 860F(a)(4)(A) and the receipt by the Trustee of an opinion of counsel or
other evidence that such purchase will not (i) result in the imposition of a tax
on  "prohibited  transactions"  under Code  Section  860F(a)(1),  (ii) otherwise
subject the  Trust Estate  to  tax, or  (iii) cause  the  Trust Estate  (or  any
segregated  pool of assets) to fail to qualify  as a REMIC. The exercise of such
right will effect early retirement of  the Certificates of that Series, but  the
right so to purchase may be exercised only after the aggregate principal balance
of  the Mortgage Loans  for such Series at  the time of purchase  is less than a
specified percentage of the aggregate principal balance at the Cut-Off Date  for
the Series, or after the date set forth in the applicable Prospectus Supplement.
 
THE TRUSTEE
 
    The  Trustee under each Pooling and Servicing Agreement (the "Trustee") will
be named in the applicable Prospectus  Supplement. The commercial bank or  trust
company serving as Trustee may have normal banking relationships with the Seller
or any of its affiliates.
 
    The  Trustee may resign at any time, in which event the Master Servicer will
be obligated to appoint a successor trustee. The Master Servicer may also remove
the Trustee if the  Trustee ceases to  be eligible to act  as Trustee under  the
Pooling and Servicing Agreement, if the Trustee becomes insolvent or in order to
change  the situs of the Trust Estate for state tax reasons. Upon becoming aware
of such circumstances, the  Master Servicer will become  obligated to appoint  a
successor trustee. The Trustee may also be removed at any time by the holders of
Certificates  evidencing not less than 51% of  the Voting Interests in the Trust
Estate, 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 Interest in the Trust Estate  necessary
to effect any such removal has been obtained. Any resignation and removal of the
Trustee,  and the appointment of a  successor trustee, will not become effective
until acceptance of such appointment by the successor trustee. The Trustee,  and
any  successor trustee,  will have  a combined capital  and surplus  of at least
$50,000,000, or  will  be a  member  of a  bank  holding system,  the  aggregate
combined capital and surplus of which is at least $50,000,000, provided that the
Trustee's and any such successor trustee's 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, and  will be subject  to supervision  or examination  by
federal or state authorities.
 
                  CERTAIN LEGAL ASPECTS OF THE MORTGAGE LOANS
 
    The  following  discussion contains  summaries of  certain legal  aspects of
mortgage loans  which are  general in  nature. Because  such legal  aspects  are
governed  by applicable  state law  (which laws  may differ  substantially), the
summaries do not purport to be complete or to reflect the laws of any particular
state, nor to encompass  the laws of  all states in which  the security for  the
Mortgage  Loans is  situated. The summaries  are qualified in  their entirety by
reference to the applicable federal and state laws governing the Mortgage Loans.
 
GENERAL
 
    The Mortgage Loans will, in general, be secured by either first mortgages or
first deeds of  trust, depending upon  the prevailing practice  in the state  in
which  the underlying property  is located. A  mortgage creates a  lien upon the
real property described in  the mortgage. There are  two parties to a  mortgage:
the  mortgagor, who is the borrower (or, in  the case of a Mortgage Loan secured
by a property  that has been  conveyed to  an INTER VIVOS  revocable trust,  the
settlor  of such  trust); and the  mortgagee, who  is the lender.  In a mortgage
instrument state,  the  mortgagor delivers  to  the  mortgagee a  note  or  bond
evidencing  the loan and the mortgage. Although a  deed of trust is similar to a
mortgage, a  deed of  trust has  three parties:  a borrower  called the  trustor
(similar  to  a  mortgagor),  a  lender called  the  beneficiary  (similar  to a
mortgagee), and a third-party grantee called the trustee. Under a deed of trust,
the borrower grants the property, irrevocably until the debt is paid, in  trust,
generally  with a power of  sale, to the trustee to  secure payment of the loan.
The trustee's authority
 
                                       59
<PAGE>
under a  deed  of trust  and  the mortgagee's  authority  under a  mortgage  are
governed  by the express provisions of the deed of trust or mortgage, applicable
law, and, in some cases,  with respect to the deed  of trust, the directions  of
the beneficiary.
 
FORECLOSURE
 
    Foreclosure  of  a mortgage  is generally  accomplished by  judicial action.
Generally, the action is  initiated by the service  of legal pleadings upon  all
parties  having an interest of record in the real property. Delays in completion
of the  foreclosure  occasionally  may  result  from  difficulties  in  locating
necessary  parties  defendant.  When  the mortgagee's  right  of  foreclosure is
contested,  the  legal  proceedings  necessary  to  resolve  the  issue  can  be
time-consuming.  After the completion of  a judicial foreclosure proceeding, the
court may  issue a  judgment of  foreclosure  and appoint  a receiver  or  other
officer  to conduct the sale of the property. In some states, mortgages may also
be foreclosed by  advertisement, pursuant  to a power  of sale  provided in  the
mortgage.  Foreclosure of a mortgage by  advertisement is essentially similar to
foreclosure of a deed of trust by non-judicial power of sale.
 
    Foreclosure of a deed of trust  is generally accomplished by a  non-judicial
trustee's  sale under a specific provision in  the deed of trust that authorizes
the trustee  to sell  the property  to a  third party  upon any  default by  the
borrower  under the terms of the note or  deed of trust. In certain states, such
foreclosure also may be accomplished by  judicial action in the manner  provided
for  foreclosure of mortgages. In some states,  the trustee must record a notice
of default and send  a copy to  the borrower-trustor and to  any person who  has
recorded  a request for  a copy of  a notice of  default and notice  of sale. In
addition, the trustee must provide notice in some states to any other individual
having an  interest  of  record  in the  real  property,  including  any  junior
lienholders.  If the deed of trust is  not reinstated within any applicable cure
period, a notice of sale must be posted  in a public place and, in most  states,
published for a specified period of time in one or more newspapers. In addition,
some  state laws  require that a  copy of  the notice of  sale be  posted on the
property and sent to all parties having an interest of record in the property.
 
    In some states, the borrower-trustor has the right to reinstate the loan  at
any  time following default until shortly before the trustee's sale. In general,
the borrower,  or any  other person  having  a junior  encumbrance on  the  real
estate,  may,  during a  reinstatement period,  cure the  default by  paying the
entire amount in arrears plus the  costs and expenses incurred in enforcing  the
obligation.  Certain state laws  control the amount  of foreclosure expenses and
costs, including attorneys' fees, which may be recovered by a lender.
 
    In case of foreclosure under either a mortgage or a deed of trust, the  sale
by  the receiver  or other designated  officer, or  by the trustee,  is a public
sale. However, because  of the difficulty  a potential buyer  at the sale  would
have in determining the exact status of title and because the physical condition
of  the property may have deteriorated during the foreclosure proceedings, it is
uncommon for a  third party to  purchase the property  at the foreclosure  sale.
Rather, it is common for the lender to purchase the property from the trustee or
receiver for an amount equal to the unpaid principal amount of the note, accrued
and  unpaid interest and the expenses of foreclosure. Thereafter, subject to the
right of  the  borrower  in some  states  to  remain in  possession  during  the
redemption  period, the lender  will assume the  burdens of ownership, including
obtaining hazard insurance  and making such  repairs at its  own expense as  are
necessary  to render  the property suitable  for sale. The  lender commonly will
obtain the services of a real estate  broker and pay the broker a commission  in
connection  with the sale of the property. Depending upon market conditions, the
ultimate proceeds  of  the sale  of  the property  may  not equal  the  lender's
investment  in the property. Any loss may  be reduced by the receipt of mortgage
insurance proceeds, if any, or by  judicial action against the borrower for  the
deficiency,  if  such  action  is  permitted  by  law.  See  "-- Anti-Deficiency
Legislation and Other Limitations on Lenders" below.
 
                                       60
<PAGE>
FORECLOSURE ON SHARES OF COOPERATIVES
 
    The cooperative shares owned  by the tenant-stockholder  and pledged to  the
lender  are, in  almost all  cases, subject to  restrictions on  transfer as set
forth in the cooperative's Certificate of Incorporation and By-laws, as well  as
in  the proprietary lease  or occupancy agreement,  and may be  cancelled by the
cooperative  for  failure  by  the  tenant-stockholder  to  pay  rent  or  other
obligations  or charges  owed by  such tenant-stockholder,  including mechanics'
liens  against   the   cooperative   apartment   building   incurred   by   such
tenant-stockholder.  The  proprietary  lease  or  occupancy  agreement generally
permits the cooperative  to terminate such  lease or agreement  in the event  an
obligor  fails  to make  payments or  defaults in  the performance  of covenants
required thereunder.  Typically, the  lender and  the cooperative  enter into  a
recognition  agreement  which establishes  the  rights and  obligations  of both
parties in the event of a  default by the tenant-stockholder on its  obligations
under   the  proprietary  lease  or  occupancy   agreement.  A  default  by  the
tenant-stockholder under  the  proprietary  lease or  occupancy  agreement  will
usually constitute a default under the security agreement between the lender and
the tenant-stockholder.
 
    The  recognition agreement  generally provides that,  in the  event that the
tenant-stockholder has  defaulted  under  the  proprietary  lease  or  occupancy
agreement,  the  cooperative will  take  no action  to  terminate such  lease or
agreement until the lender has been provided an opportunity to cure the default.
The recognition agreement typically  provides that if  the proprietary lease  or
occupancy  agreement is terminated, the  cooperative will recognize the lender's
lien against  proceeds  from  a  sale of  the  cooperative  apartment,  subject,
however,  to the cooperative's right to sums due under such proprietary lease or
occupancy agreement. The  total amount owed  to the cooperative  by the  tenant-
stockholder,  which the lender  generally cannot restrict  and does not monitor,
could reduce the value of the collateral below the outstanding principal balance
of the cooperative loan and accrued and unpaid interest thereon.
 
    Recognition agreements also provide that in the event of a foreclosure on  a
cooperative  loan,  the  lender  must  obtain the  approval  or  consent  of the
cooperative as  required  by  the  proprietary  lease  before  transferring  the
cooperative  shares or assigning the proprietary lease. Generally, the lender is
not limited  by the  agreement  in any  rights it  may  have to  dispossess  the
tenant-stockholders.
 
    Foreclosure  on  the  cooperative  shares  is  accomplished  by  a  sale  in
accordance with the provisions of Article 9 of the Uniform Commercial Code  (the
"UCC") and the security agreement relating to those shares. Article 9 of the UCC
requires that a sale be conducted in a "commercially reasonable" manner. Whether
a foreclosure sale has been conducted in a "commercially reasonable" manner will
depend  on the facts  in each case. In  determining commercial reasonableness, a
court will look to  the notice given  the debtor and  the method, manner,  time,
place and terms of the foreclosure. Generally, a sale conducted according to the
usual practice of banks selling similar collateral will be considered reasonably
conducted.
 
    Article  9 of the UCC provides that the proceeds of the sale will be applied
first to  pay the  costs  and expenses  of  the sale  and  then to  satisfy  the
indebtedness   secured  by  the  lender's  security  interest.  The  recognition
agreement, however, generally provides that the lender's right to  reimbursement
is subject to the right of the cooperative corporation to receive sums due under
the  proprietary lease or occupancy agreement.  If there are proceeds remaining,
the lender must account to  the tenant-stockholder for the surplus.  Conversely,
if  a  portion of  the indebtedness  remains  unpaid, the  tenant-stockholder is
generally responsible for  the deficiency. See  "-- Anti-Deficiency  Legislation
and Other Limitations on Lenders" below.
 
RIGHTS OF REDEMPTION
 
    In some states, after sale pursuant to a deed of trust and/or foreclosure of
a  mortgage,  the borrower  and certain  foreclosed junior  lienors are  given a
statutory period in which to redeem  the property from the foreclosure sale.  In
most states where the right of redemption is available, statutory redemption may
occur  upon  payment of  the foreclosure  purchase  price, accrued  interest and
taxes. In some states, the right to redeem is an equitable right. The effect  of
a right of redemption is to delay the
 
                                       61
<PAGE>
ability  of the lender to sell the  foreclosed property. The exercise of a right
of redemption would defeat the title of any purchaser at a foreclosure sale,  or
of  any purchaser  from the  lender subsequent  to judicial  foreclosure or sale
under a deed  of trust.  Consequently, the  practical effect  of the  redemption
right  is to force the  lender to maintain the property  and pay the expenses of
ownership until the redemption period has run.
 
ANTI-DEFICIENCY LEGISLATION AND OTHER LIMITATIONS ON LENDERS
 
    Certain states have imposed statutory  restrictions that limit the  remedies
of  a beneficiary under a deed of trust or a mortgagee under a mortgage. In some
states, statutes limit  the right of  the beneficiary or  mortgagee to obtain  a
deficiency  judgment against the borrower following  foreclosure or sale under a
deed of trust. A deficiency judgment  is a personal judgment against the  former
borrower  equal in most  cases to the  difference between the  amount due to the
lender and the net amount realized upon the foreclosure sale.
 
    Some state statutes may require the beneficiary or mortgagee to exhaust  the
security afforded under a deed of trust or mortgage by foreclosure in an attempt
to satisfy the full debt before bringing a personal action against the borrower.
In certain other states, the lender has the option of bringing a personal action
against  the  borrower  on  the debt  without  first  exhausting  such security;
however, in  some  of these  states,  the  lender, following  judgment  on  such
personal  action, may be  deemed to have  elected a remedy  and may be precluded
from exercising  remedies  with  respect  to  the  security.  Consequently,  the
practical  effect of the election requirement,  when applicable, is that lenders
will usually proceed first against the security rather than bringing a  personal
action against the borrower.
 
    Other  statutory provisions  may limit  any deficiency  judgment against the
former borrower following a  foreclosure sale to the  excess of the  outstanding
debt  over the fair market value  of the property at the  time of such sale. The
purpose of  these statutes  is to  prevent  a beneficiary  or a  mortgagee  from
obtaining a large deficiency judgment against the former borrower as a result of
low or no bids at the foreclosure sale.
 
    In  some states, exceptions to the anti-deficiency statutes are provided for
in certain instances where the value of the lender's security has been  impaired
by  acts or omissions of the borrower, for example, in the event of waste of the
property.
 
    Generally, Article 9 of  the UCC governs  foreclosure on cooperative  shares
and  the related proprietary lease or occupancy agreement and foreclosure on the
beneficial interest in a land trust. Some courts have interpreted Section  9-504
of  the UCC to prohibit a deficiency  award unless the creditor establishes that
the sale of the  collateral (which, in  the case of a  Mortgage Loan secured  by
shares  of a cooperative, would be such shares and the related proprietary lease
or occupancy agreement) was conducted in a commercially reasonable manner.
 
    A Servicer generally will  not be required  under the applicable  Underlying
Servicing Agreement to pursue deficiency judgments on the Mortgage Loans even if
permitted by law.
 
    In  addition  to  anti-deficiency and  related  legislation,  numerous other
federal and state  statutory provisions, including  the federal bankruptcy  laws
and  state laws affording  relief to debtors,  may interfere with  or affect the
ability of a secured mortgage lender to realize upon its security. For  example,
numerous statutory provisions under the United States Bankruptcy Code, 11 U.S.C.
Sections  101 ET SEQ., (the "Bankruptcy Code")  may interfere with or affect the
ability of the  Seller to obtain  payment of  a Mortgage Loan,  to realize  upon
collateral  and/or  enforce a  deficiency judgment.  For example,  under federal
bankruptcy  law,  virtually  all  actions  (including  foreclosure  actions  and
deficiency  judgment proceedings) are automatically stayed  upon the filing of a
bankruptcy petition, and often no interest or principal payments are made during
the course of the  bankruptcy proceeding. In a  case under the Bankruptcy  Code,
the  secured party is precluded from  foreclosing without authorization from the
bankruptcy court. In addition, a court with federal bankruptcy jurisdiction  may
permit  a debtor  through his or  her Chapter  11 or Chapter  13 plan  to cure a
monetary default in  respect of a  Mortgage Loan by  paying arrearages within  a
reasonable time period and reinstating the
 
                                       62
<PAGE>
original  mortgage loan payment schedule even  though the lender accelerated the
mortgage loan and final judgment of foreclosure had been entered in state  court
(provided  no foreclosure  sale had  yet occurred)  prior to  the filing  of the
debtor's  petition.  Some  courts  with  federal  bankruptcy  jurisdiction  have
approved  plans, based on  the particular facts  of the case,  that effected the
curing of a mortgage loan default by paying arrearages over a number of years.
 
    If a  Mortgage Loan  is secured  by property  NOT consisting  solely of  the
debtor's  principal residence,  the Bankruptcy  Code also  permits such Mortgage
Loan to be modified. Such modifications may include reducing the amount of  each
monthly payment, changing the rate of interest, altering the repayment schedule,
and  reducing the lender's security interest to  the value of the property, thus
leaving the  lender in  the position  of a  general unsecured  creditor for  the
difference  between the value of the property and the outstanding balance of the
Mortgage Loan. Some courts have  permitted such modifications when the  Mortgage
Loan  is  secured  both by  the  debtor's  principal residence  and  by personal
property.
 
    If a court relieves a borrower's  obligation to repay amounts otherwise  due
on  a Mortgage Loan, the Servicer will  not be required to advance such amounts,
and any loss in respect thereof will be borne by the Certificateholders.
 
    The Internal Revenue Code of 1986, as amended, provides priority to  certain
tax  liens over  the lien of  the mortgage  or deed of  trust. The  laws of some
states provide priority to certain  tax liens over the  lien of the mortgage  or
deed  of trust. Numerous federal and  some state consumer protection laws impose
substantive  requirements  upon   mortgage  lenders  in   connection  with   the
origination, servicing and enforcement of mortgage loans. These laws include the
federal  Truth  in Lending  Act, Real  Estate  Settlement Procedures  Act, Equal
Credit Opportunity Act, Fair Credit Billing Act, Fair Credit Reporting Act,  and
related  statutes  and regulations.  These federal  laws  and state  laws impose
specific statutory liabilities  upon lenders who  originate or service  mortgage
loans and who fail to comply with the provisions of the law. In some cases, this
liability may affect assignees of the mortgage loans.
 
SOLDIERS' AND SAILORS' CIVIL RELIEF ACT AND SIMILAR LAWS
 
    Generally, under the terms of the Soldiers' and Sailors' Civil Relief Act of
1940,  as amended  (the "Relief  Act"), a  borrower who  enters military service
after the origination of such borrower's Mortgage Loan (including a borrower who
is a member of  the National Guard or  is in reserve status  at the time of  the
origination  of the Mortgage Loan and is later called to active duty) may not be
charged interest above an annual rate of 6% during the period of such borrower's
active duty status,  unless a  court orders  otherwise upon  application of  the
lender.  It  is  possible  that  such  action  could  have  an  effect,  for  an
indeterminate period of  time, on the  ability of the  Servicer to collect  full
amounts  of interest  on certain of  the Mortgage  Loans in a  Trust Estate. Any
shortfall in interest collections resulting  from the application of the  Relief
Act  could result in  losses to the  holders of the  Certificates of the related
Series. Further,  the Relief  Act  imposes limitations  which would  impair  the
ability  of the Servicer  to foreclose on  an affected Mortgage  Loan during the
borrower's period of active duty status. Thus, in the event that such a Mortgage
Loan goes  into  default, there  may  be delays  and  losses occasioned  by  the
inability  to realize upon  the Mortgaged Property in  a timely fashion. Certain
states have enacted comparable  legislation which may  interfere with or  affect
the ability of the Servicer to timely collect payments of principal and interest
on,  or to  foreclose on,  Mortgage Loans  of borrowers  in such  states who are
active or reserve members of the armed services.
 
ENVIRONMENTAL CONSIDERATIONS
 
    Under the  federal  Comprehensive Environmental  Response  Compensation  and
Liability  Act, as amended ("CERCLA"), and under  state law in certain states, a
secured party which takes a deed  in lieu of foreclosure, purchases a  mortgaged
property  at  a foreclosure  sale or  operates a  mortgaged property  may become
liable in  certain circumstances  for  the costs  of remedial  action  ("Cleanup
Costs")  if  hazardous  wastes or  hazardous  substances have  been  released or
disposed of on the  property. Such Cleanup Costs  may be substantial. Under  the
laws  of certain states, failure to perform the remediation required or demanded
by  the   state  of   any  condition   or  circumstance   that  (i)   may   pose
 
                                       63
<PAGE>
an  imminent or substantial endangerment to the  public health or welfare or the
environment, (ii) may result in a release or threatened release of any hazardous
substances, or (iii) may give rise to any environmental claim or demand may give
rise to a lien on the property  to ensure the reimbursement of Cleanup Costs  (a
"Superlien").  All subsequent  liens on such  property are  subordinated to such
Superlien and, in  some states, even  prior recorded liens  are subordinated  to
such Superliens. In the latter states, the security interest of the Trustee in a
property that is subject to such a Superlien could be adversely affected.
 
    The  state of  the law  is currently  unclear as  to whether  and under what
circumstances Cleanup Costs, or the  obligation to take remedial actions,  could
be  imposed on a secured lender such as the Trust Estate. Under the laws of some
states and under CERCLA, a  lender may be liable as  an "owner or operator"  for
costs of addressing releases or threatened releases of hazardous substances on a
mortgaged  property if such lender or  its agents or employees have participated
in  the  management  of  the  operations  of  the  borrower,  even  though   the
environmental  damage or threat was caused by  a prior owner or current owner or
operator or other third  party. Excluded from CERCLA's  definition of "owner  or
operator,"  however, is a person "who without participating in the management of
the facility,  holds indicia  of  ownership primarily  to protect  his  security
interest"  (the "secured-creditor exemption").  This exemption for  holders of a
security interest such as a secured lender applies only when the lender seeks to
protect its security interest in the contaminated facility or property. Thus, if
a lender's  activities  begin to  encroach  on  the actual  management  of  such
facility  or  property, the  lender faces  potential liability  as an  "owner or
operator" under CERCLA. Similarly, when a lender forecloses and takes title to a
contaminated facility  or  property,  the  lender  may  incur  potential  CERCLA
liability  in various circumstances,  including among others,  when it holds the
facility or  property  as  an  investment (including  leasing  the  facility  or
property  to a third party), fails to market the property in a timely fashion or
fails to properly address environmental conditions at the property or facility.
 
    A decision  in May  1990  of the  United States  Court  of Appeals  for  the
Eleventh Circuit in UNITED STATES V. FLEET FACTORS CORP. very narrowly construed
CERCLA's  secured-creditor exemption. The court's opinion suggests that a lender
need not have involved  itself in the day-to-day  operations of the facility  or
participated in decisions relating to hazardous waste to be liable under CERCLA;
rather,  liability  could  attach  to  a  lender  if  its  involvement  with the
management of the  facility is broad  enough to support  the inference that  the
lender  had  the capacity  to influence  the  borrower's treatment  of hazardous
waste. The court  added that  a lender's  capacity to  influence such  decisions
could be inferred from the extent of its involvement in the facility's financial
management.  A subsequent decision by the United States Court of Appeals for the
Ninth Circuit in IN RE BERGSOE METAL CORP., apparently disagreeing with, but not
expressly contradicting, the FLEET FACTORS court, held that a secured lender had
no liability absent "some actual management of the facility" on the part of  the
lender.  On April  29, 1992, the  United States  Environmental Protection Agency
(the  "EPA")  issued  a  final   rule  interpreting  and  delineating   CERCLA's
secured-creditor  exemption and  the range  of permissible  actions that  may be
undertaken by a holder of a  contaminated facility without exceeding the  bounds
of  the secured-creditor exemption. On February 4, 1994, the United States Court
of Appeals for the District of Columbia Circuit in KELLEY V. EPA invalidated the
EPA rule. As a result of the KELLEY  case, the state of the law with respect  to
the  secured creditor  exemption remains unclear.  In addition, even  if the EPA
rule or a replacement  were to be  reinstated, the EPA  rule or its  replacement
would  not necessarily affect the potential for liability in actions by either a
state or a private party under CERCLA or in actions under other federal or state
laws which may impose liability on "owners or operators" but do not  incorporate
the secured-creditor exemption. Traditionally, residential mortgage lenders have
not taken steps to evaluate whether hazardous wastes or hazardous substances are
present  with respect to any mortgaged property  prior to the origination of the
mortgage  loan  or  prior  to   foreclosure  or  accepting  a  deed-in-lieu   of
foreclosure.  Accordingly,  neither  the Seller,  Norwest  Mortgage  nor Norwest
Funding has  made such  evaluations prior  to the  origination of  the  Mortgage
Loans,   nor  does  Norwest  Mortgage  or  Norwest  Funding  require  that  such
evaluations be made by originators who  have sold the Mortgage Loans to  Norwest
Mortgage. Neither the Seller nor Norwest
 
                                       64
<PAGE>
Mortgage  is required to undertake any  such evaluations prior to foreclosure or
accepting a  deed-in-lieu of  foreclosure.  Neither the  Seller nor  the  Master
Servicer  makes any representations or warranties  or assumes any liability with
respect to the absence or effect of hazardous wastes or hazardous substances  on
any  Mortgaged Property or any casualty resulting from the presence or effect of
hazardous wastes or  hazardous substances.  See "The Trust  Estates --  Mortgage
Loans -- Representations and Warranties" and "Servicing of the Mortgage Loans --
Enforcement  of Due-on-Sale Clauses; Realization  Upon Defaulted Mortgage Loans"
above.
 
"DUE-ON-SALE" CLAUSES
 
    The forms  of note,  mortgage and  deed of  trust relating  to  conventional
Mortgage Loans may contain a "due-on-sale" clause permitting acceleration of the
maturity  of a loan if  the borrower transfers its  interest in the property. In
recent  years,  court  decisions  and  legislative  actions  placed  substantial
restrictions  on the right  of lenders to  enforce such clauses  in many states.
However, effective  October  15,  1982, Congress  enacted  the  Garn-St  Germain
Depository  Institutions Act of 1982 (the  "Garn Act") which purports to preempt
state laws which prohibit the enforcement of "due-on-sale" clauses by  providing
among  other matters, that  "due-on-sale" clauses in  certain loans (which loans
may include the Mortgage Loans)  made after the effective  date of the Garn  Act
are enforceable, within certain limitations as set forth in the Garn Act and the
regulations  promulgated thereunder. "Due-on-sale" clauses contained in mortgage
loans originated by  federal savings  and loan associations  or federal  savings
banks  are fully  enforceable pursuant  to regulations  of the  Office of Thrift
Supervision ("OTS"), as successor to the Federal Home Loan Bank Board ("FHLBB"),
which preempt  state  law  restrictions  on the  enforcement  of  such  clauses.
Similarly,  "due-on-sale" clauses in  mortgage loans made  by national banks and
federal  credit  unions  are  now  fully  enforceable  pursuant  to   preemptive
regulations  of the  Comptroller of the  Currency and the  National Credit Union
Administration, respectively.
 
    The  Garn  Act  created  a  limited  exemption  from  its  general  rule  of
enforceability  for  "due-on-sale" clauses  in  certain mortgage  loans ("Window
Period Loans") which were originated by non-federal lenders and made or  assumed
in  certain states ("Window Period States")  during the period, prior to October
15, 1982,  in  which that  state  prohibited the  enforcement  of  "due-on-sale"
clauses  by constitutional provision,  statute or statewide  court decision (the
"Window Period"). Though neither the Garn  Act nor the OTS regulations  actually
names  the Window Period States, the  Federal Home Loan Mortgage Corporation has
taken the  position,  in  prescribing mortgage  loan  servicing  standards  with
respect  to mortgage loans which it has purchased, that the Window Period States
were:  Arizona,  Arkansas,  California,   Colorado,  Georgia,  Iowa,   Michigan,
Minnesota,  New Mexico, Utah and Washington. Under the Garn Act, unless a Window
Period State took action by October 15,  1985, the end of the Window Period,  to
further  regulate enforcement of  "due-on-sale" clauses in  Window Period Loans,
"due-on-sale" clauses would become enforceable even in Window Period Loans. Five
of the Window Period States (Arizona, Minnesota, Michigan, New Mexico and  Utah)
have taken actions which restrict the enforceability of "due-on-sale" clauses in
Window  Period Loans beyond October 15, 1985.  The actions taken vary among such
states.
 
    By virtue  of  the  Garn Act,  a  Servicer  may generally  be  permitted  to
accelerate  any conventional Mortgage Loan which contains a "due-on-sale" clause
upon transfer of an interest in the property subject to the mortgage or deed  of
trust.  With respect to any Mortgage Loan  secured by a residence occupied or to
be occupied  by the  borrower, this  ability  to accelerate  will not  apply  to
certain  types of transfers, including (i)  the granting of a leasehold interest
which has a term of three years or less and which does not contain an option  to
purchase,  (ii) a transfer to a relative resulting from the death of a borrower,
or a transfer where the  spouse or children become an  owner of the property  in
each  case where  the transferee(s) will  occupy the property,  (iii) a transfer
resulting from a decree of  dissolution of marriage, legal separation  agreement
or  from an incidental property settlement agreement by which the spouse becomes
an owner of  the property,  (iv) the  creation of  a lien  or other  encumbrance
subordinate  to  the lender's  security instrument  which does  not relate  to a
transfer of rights  of occupancy  in the property  (provided that  such lien  or
encumbrance is not created pursuant to a
 
                                       65
<PAGE>
contract for deed), (v) a transfer by devise, descent or operation of law on the
death of a joint tenant or tenant by the entirety, (vi) a transfer into an INTER
VIVOS  trust in which the borrower is  the beneficiary and which does not relate
to a transfer of rights of occupancy; and (vii) other transfers as set forth  in
the  Garn Act and  the regulations thereunder.  The extent of  the effect of the
Garn Act on the average lives and delinquency rates of the Mortgage Loans cannot
be predicted. See "Prepayment and Yield Considerations."
 
APPLICABILITY OF USURY LAWS
 
    Title V of the Depository Institutions Deregulation and Monetary Control Act
of  1980,  enacted  in  March  1980  ("Title  V"),  provides  that  state  usury
limitations shall not apply to certain types of residential first mortgage loans
originated  by certain lenders after March 31, 1980. The OTS as successor to the
FHLBB  is   authorized  to   issue  rules   and  regulations   and  to   publish
interpretations governing implementation of Title V.  The statute authorized any
state  to reimpose interest rate limits by  adopting before April 1, 1983, a law
or constitutional provision which expressly  rejects application of the  federal
law.  Fifteen  states have  adopted laws  reimposing or  reserving the  right to
reimpose interest  rate  limits. In  addition,  even where  Title  V is  not  so
rejected,  any state is  authorized to adopt a  provision limiting certain other
loan charges.
 
    The Seller will represent and warrant in the Pooling and Servicing Agreement
to the Trustee for the benefit of Certificateholders that all Mortgage Loans are
originated in full compliance with applicable state laws, including usury  laws.
See  "The Pooling and Servicing Agreement -- Assignment of Mortgage Loans to the
Trustee."
 
ENFORCEABILITY OF CERTAIN PROVISIONS
 
    Standard forms  of  note,  mortgage  and deed  of  trust  generally  contain
provisions  obligating the  borrower to  pay a late  charge if  payments are not
timely made  and  in some  circumstances  may  provide for  prepayment  fees  or
penalties  if the obligation is paid prior to maturity. In certain states, there
are or may be specific limitations upon late charges which a lender may  collect
from  a borrower for delinquent payments.  Certain states also limit the amounts
that a lender may collect from a borrower as an additional charge if the loan is
prepaid. Under the Pooling and Servicing Agreement, late charges and  prepayment
fees  (to the extent  permitted by law and  not waived by  the Servicer) will be
retained by the Servicer as additional servicing compensation.
 
    Courts have  imposed general  equitable principles  upon foreclosure.  These
equitable  principles are  generally designed to  relieve the  borrower from the
legal effect of defaults under the loan documents. Examples of judicial remedies
that may be fashioned  include judicial requirements  that the lender  undertake
affirmative  and expensive  actions to determine  the causes  for the borrower's
default and the likelihood that the borrower will be able to reinstate the loan.
In some cases, courts have substituted their judgment for the lender's  judgment
and  have required  lenders to  reinstate loans  or recast  payment schedules to
accommodate borrowers who are suffering from temporary financial disability.  In
some cases, courts have limited the right of lenders to foreclose if the default
under  the mortgage instrument is not monetary,  such as the borrower failing to
adequately maintain the property or the borrower executing a second mortgage  or
deed  of trust  affecting the  property. In other  cases, some  courts have been
faced with  the issue  of  whether federal  or state  constitutional  provisions
reflecting due process concerns for adequate notice require that borrowers under
the  deeds of  trust receive notices  in addition  to the statutorily-prescribed
minimum requirements. For  the most  part, these  cases have  upheld the  notice
provisions  as being reasonable or have found that the sale by a trustee under a
deed of  trust or  under a  mortgage having  a power  of sale  does not  involve
sufficient state action to afford constitutional protections to the borrower.
 
                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
    The  following  general  discussion represents  the  opinion  of Cadwalader,
Wickersham & Taft as to the anticipated material federal income tax consequences
of the purchase, ownership and disposition of Certificates. The discussion below
does  not   purport   to   address   all   federal   income   tax   consequences
 
                                       66
<PAGE>
that  may be applicable to particular categories of investors, some of which may
be subject to special rules. The  authorities on which this discussion is  based
are  subject  to change  or differing  interpretations, and  any such  change or
interpretation  could  apply   retroactively.  This   discussion  reflects   the
applicable   provisions  of  the  Code,  as  well  as  regulations  (the  "REMIC
Regulations") promulgated by the U.S. Department of the Treasury on December 23,
1992. Investors  should  consult  their  own tax  advisors  in  determining  the
federal,  state, local and any  other tax consequences to  them of the purchase,
ownership and disposition of Certificates.
 
    For purposes of this discussion, where the applicable Prospectus  Supplement
provides  for a  Fixed Retained Yield  with respect  to the Mortgage  Loans of a
Series of Certificates, references to the Mortgage Loans will be deemed to refer
to that portion of  the Mortgage Loans  held by the Trust  Estate that does  not
include    the   Fixed   Retained   Yield.   References   to   a   "Holder"   or
"Certificateholder" in this discussion generally mean the beneficial owner of  a
Certificate.
 
             FEDERAL INCOME TAX CONSEQUENCES FOR REMIC CERTIFICATES
 
GENERAL
 
    With respect to a particular Series of Certificates, an election may be made
to  treat the Trust Estate or one or  more segregated pools of assets therein as
one or more REMICs within the meaning of Code Section 860D. A Trust Estate or  a
portion or portions thereof as to which one or more REMIC elections will be made
will  be  referred  to as  a  "REMIC  Pool." For  purposes  of  this discussion,
Certificates of a Series as  to which one or more  REMIC elections are made  are
referred  to as "REMIC Certificates" and will  consist of one or more Classes of
"Regular Certificates" and one Class of  "Residual Certificates" in the case  of
each  REMIC  Pool. Qualification  as a  REMIC  requires ongoing  compliance with
certain  conditions.  With  respect  to  each  Series  of  REMIC   Certificates,
Cadwalader,  Wickersham &  Taft, counsel to  the Seller, has  advised the Seller
that in the firm's opinion, assuming (i) the making of an appropriate  election,
(ii)  compliance with the Pooling and  Servicing Agreement, and (iii) compliance
with any changes in the law, including any amendments to the Code or  applicable
Treasury  regulations thereunder,  each REMIC Pool  will qualify as  a REMIC. In
such case, the Regular Certificates will be considered to be "regular interests"
in the REMIC Pool and generally will be treated for federal income tax  purposes
as if they were newly originated debt instruments, and the Residual Certificates
will  be considered to be "residual interests" in the REMIC Pool. The Prospectus
Supplement for each  Series of Certificates  will indicate whether  one or  more
REMIC  elections with respect to the related Trust Estate will be made, in which
event references to "REMIC" or "REMIC Pool"  herein shall be deemed to refer  to
each such REMIC Pool.
 
STATUS OF REMIC CERTIFICATES
 
    REMIC  Certificates held by a mutual savings bank or a domestic building and
loan association will  constitute "qualifying  real property  loans" within  the
meaning  of Code Section 593(d)(1) in the same proportion that the assets of the
REMIC Pool would be so treated.  REMIC Certificates held by a domestic  building
and loan association will constitute "a regular or residual interest in a REMIC"
within  the meaning  of Code Section  7701(a)(19)(C)(xi) in  the same proportion
that the assets of  the REMIC Pool  would be treated  as "loans...secured by  an
interest  in real property" within the meaning of Code Section 7701(a)(19)(C)(v)
or as other assets described in Code Section 7701(a)(19)(C). REMIC  Certificates
held  by a  real estate  investment trust  will constitute  "real estate assets"
within the meaning  of Code Section  856(c)(5)(A), and interest  on the  Regular
Certificates and income with respect to Residual Certificates will be considered
"interest  on obligations secured by mortgages  on real property or on interests
in real property" within  the meaning of Code  Section 856(c)(3)(B) in the  same
proportion  that, for both  purposes, the assets  of the REMIC  Pool would be so
treated. If at all times 95% or more of the assets of the REMIC Pool qualify for
each of the foregoing  treatments, the REMIC Certificates  will qualify for  the
corresponding  status in their entirety. For purposes of Code Sections 593(d)(1)
and 856(c)(5)(A), payments of principal and interest on the Mortgage Loans  that
are reinvested pending distribution to holders of REMIC Certificates qualify for
such treatment. Where two REMIC Pools are a part of a tiered structure they will
be treated as one REMIC for
 
                                       67
<PAGE>
purposes of the tests described above respecting asset ownership of more or less
than  95%. In addition, if the assets of the REMIC include Buy-Down Loans, it is
possible that  the  percentage  of such  assets  constituting  "qualifying  real
property  loans"  or  "loans...secured  by an  interest  in  real  property" for
purposes of Code Sections 593(d)(1) and 7701(a)(19)(C)(v), respectively, may  be
required  to  be reduced  by the  amount  of the  related Buy-Down  Funds. REMIC
Certificates  held  by  a  regulated  investment  company  will  not  constitute
"Government  securities"  within the  meaning  of Code  Section 851(b)(4)(A)(i).
REMIC Certificates held  by certain  financial institutions  will constitute  an
"evidence of indebtedness" within the meaning of Code Section 582(c)(1).
 
QUALIFICATION AS A REMIC
 
    In  order for the  REMIC Pool to qualify  as a REMIC,  there must be ongoing
compliance on the part of the REMIC Pool with the requirements set forth in  the
Code.  The REMIC Pool  must fulfill an  asset test, which  requires that no more
than a DE MINIMIS portion of  the assets of the REMIC  Pool, as of the close  of
the  third calendar month beginning after  the "Startup Day" (which for purposes
of this discussion is the date of issuance of the REMIC Certificates) and at all
times thereafter, may  consist of  assets other than  "qualified mortgages"  and
"permitted investments." The REMIC Regulations provide a safe harbor pursuant to
which  the DE  MINIMIS requirement  will be  met if  at all  times the aggregate
adjusted basis  of the  nonqualified assets  is less  than 1%  of the  aggregate
adjusted  basis of all the REMIC Pool's assets. An entity that fails to meet the
safe harbor may nevertheless demonstrate that it holds no more than a DE MINIMIS
amount of  nonqualified  assets. A  REMIC  Pool also  must  provide  "reasonable
arrangements" to prevent its residual interests from being held by "disqualified
organizations"  or agents thereof and must furnish applicable tax information to
transferors or agents that violate  this requirement. See "Taxation of  Residual
Certificates -- Tax-Related Restrictions on Transfer of Residual Certificates --
Disqualified Organizations."
 
    A  qualified mortgage  is any obligation  that is principally  secured by an
interest in real property and  that is either transferred  to the REMIC Pool  on
the  Startup Day or is  purchased by the REMIC  Pool within a three-month period
thereafter pursuant to  a fixed  price contract in  effect on  the Startup  Day.
Qualified  mortgages include whole  mortgage loans, such  as the Mortgage Loans,
and, generally,  certificates of  beneficial interest  in a  grantor trust  that
holds  mortgage loans and regular interests in another REMIC, such as lower-tier
regular interests in a  tiered REMIC. The REMIC  Regulations specify that  loans
secured  by timeshare  interests and  shares held by  a tenant  stockholder in a
cooperative housing corporation can be qualified mortgages. A qualified mortgage
includes a qualified replacement mortgage, which is any property that would have
been treated as a qualified mortgage if it were transferred to the REMIC Pool on
the Startup Day and that  is received either (i)  in exchange for any  qualified
mortgage  within  a three-month  period  thereafter or  (ii)  in exchange  for a
"defective  obligation"  within  a  two-year  period  thereafter.  A  "defective
obligation"  includes  (i) a  mortgage  in default  or  as to  which  default is
reasonably foreseeable, (ii) a mortgage  as to which a customary  representation
or  warranty made at the  time of transfer to the  REMIC Pool has been breached,
(iii) a mortgage  that was fraudulently  procured by the  mortgagor, and (iv)  a
mortgage  that was not in fact principally secured by real property (but only if
such mortgage is disposed of within 90 days of discovery). A Mortgage Loan  that
is  "defective" as described in  clause (iv) that is not  sold or, if within two
years of the Startup Day, exchanged, within 90 days of discovery, ceases to be a
qualified mortgage after such 90-day period.
 
    Permitted investments  include  cash  flow  investments,  qualified  reserve
assets,  and  foreclosure property.  A cash  flow  investment is  an investment,
earning a return  in the  nature of  interest, of  amounts received  on or  with
respect  to qualified mortgages for a temporary period, not exceeding 13 months,
until the next scheduled distribution to holders of interests in the REMIC Pool.
A qualified reserve asset is any intangible property held for investment that is
part of any reasonably required reserve maintained by the REMIC Pool to  provide
for  payments of  expenses of the  REMIC Pool or  amounts due on  the regular or
residual interests in  the event  of defaults (including  delinquencies) on  the
qualified  mortgages,  lower  than  expected  reinvestment  returns,  prepayment
interest shortfalls and certain  other contingencies. The  reserve fund will  be
disqualified if more than 30% of the gross
 
                                       68
<PAGE>
income  from the assets  in such fund for  the year is derived  from the sale or
other disposition of property held for  less than three months, unless  required
to prevent a default on the regular interests caused by a default on one or more
qualified mortgages. A reserve fund must be reduced "promptly and appropriately"
as  payments on  the Mortgage Loans  are received. Foreclosure  property is real
property acquired by the REMIC Pool  in connection with the default or  imminent
default  of a qualified mortgage and generally held for not more than two years,
with extensions granted by the Internal Revenue Service.
 
    In addition to the foregoing requirements, the various interests in a  REMIC
Pool  also must meet certain requirements. All  of the interests in a REMIC Pool
must be either of the following: (i) one or more classes of regular interests or
(ii) a single class  of residual interests on  which distributions, if any,  are
made  pro rata. A regular interest is an interest in a REMIC Pool that is issued
on the Startup Day with  fixed terms, is designated  as a regular interest,  and
unconditionally  entitles the holder to receive a specified principal amount (or
other similar amount),  and provides  that interest payments  (or other  similar
amounts), if any, at or before maturity either are payable based on a fixed rate
or  a qualified variable rate, or consist  of a specified, nonvarying portion of
the interest  payments on  qualified  mortgages. Such  a specified  portion  may
consist  of a  fixed number  of basis  points, a  fixed percentage  of the total
interest, or  a qualified  variable rate,  inverse variable  rate or  difference
between  two fixed or qualified  variable rates on some  or all of the qualified
mortgages. The specified principal  amount of a  regular interest that  provides
for  interest payments consisting of a specified, nonvarying portion of interest
payments on qualified mortgages may be zero. A residual interest is an  interest
in  a REMIC Pool other than a regular interest that is issued on the Startup Day
and that is designated as a residual  interest. An interest in a REMIC Pool  may
be  treated as a regular interest even  if payments of principal with respect to
such interest are  subordinated to payments  on other regular  interests or  the
residual  interest  in the  REMIC  Pool, and  are  dependent on  the  absence of
defaults or delinquencies on qualified mortgages or permitted investments, lower
than  reasonably  expected  returns  on  permitted  investments,   unanticipated
expenses   incurred  by  the  REMIC  Pool  or  prepayment  interest  shortfalls.
Accordingly, the Regular Certificates  of a Series will  constitute one or  more
classes of regular interests, and the Residual Certificates with respect to that
Series   will  constitute  a  single  class   of  residual  interests  on  which
distributions are made pro rata.
 
    If an entity, such as  the REMIC Pool, fails to  comply with one or more  of
the  ongoing requirements of the Code for  REMIC status during any taxable year,
the Code provides that the entity will not  be treated as a REMIC for such  year
and  thereafter. In  this event,  an entity  with multiple  classes of ownership
interests may be  treated as  a separate  association taxable  as a  corporation
under  Treasury  regulations, and  the Regular  Certificates  may be  treated as
equity interests therein. The Code, however, authorizes the Treasury  Department
to  issue regulations that address situations where  failure to meet one or more
of the requirements for REMIC status occurs inadvertently and in good faith, and
disqualification of  the  REMIC  Pool  would  occur  absent  regulatory  relief.
Investors  should be aware, however, that the Conference Committee Report to the
Tax Reform  Act of  1986  (the "1986  Act") indicates  that  the relief  may  be
accompanied  by sanctions, such as the imposition of a corporate tax on all or a
portion of  the  REMIC  Pool's income  for  the  period of  time  in  which  the
requirements for REMIC status are not satisfied.
 
TAXATION OF REGULAR CERTIFICATES
 
    GENERAL
 
    In  general, interest,  original issue  discount, and  market discount  on a
Regular Certificate  will be  treated as  ordinary  income to  a holder  of  the
Regular Certificate (the "Regular Certificateholder"), and principal payments on
a  Regular Certificate will be  treated as a return of  capital to the extent of
the Regular  Certificateholder's  basis  in the  Regular  Certificate  allocable
thereto.  Regular Certificateholders must  use the accrual  method of accounting
with regard  to Regular  Certificates, regardless  of the  method of  accounting
otherwise used by such Regular Certificateholders.
 
                                       69
<PAGE>
    ORIGINAL ISSUE DISCOUNT
 
    Compound  Interest  Certificates  will  be,  and  other  classes  of Regular
Certificates may be, issued with "original issue discount" within the meaning of
Code Section 1273(a). Holders of any  Class or Subclass of Regular  Certificates
having original issue discount generally must include original issue discount in
ordinary  income for  federal income tax  purposes as it  accrues, in accordance
with a  constant interest  method that  takes into  account the  compounding  of
interest,  in advance of  receipt of the  cash attributable to  such income. The
following  discussion  is  based  in  part  on  temporary  and  final   Treasury
regulations  issued on  February 2,  1994 (the  "OID Regulations")  and proposed
Treasury  regulations  issued   on  December   16,  1994   (the  "Proposed   OID
Regulations")  under Code Sections 1271 through 1273 and 1275 and in part on the
provisions of the 1986 Act. Regular Certificateholders should be aware, however,
that the OID  Regulations and  the Proposed  OID Regulations  do not  adequately
address  certain issues relevant  to prepayable securities,  such as the Regular
Certificates. To the extent such issues  are not addressed in such  regulations,
the  Seller  intends  to  apply  the  methodology  described  in  the Conference
Committee Report to the 1986 Act. No assurance can be provided that the Internal
Revenue Service  will not  take a  different position  as to  those matters  not
currently  addressed by  the OID Regulations  and the  Proposed OID Regulations.
Moreover, the OID Regulations include  an anti-abuse rule allowing the  Internal
Revenue  Service to apply or depart from  the OID Regulations where necessary or
appropriate to  ensure  a reasonable  tax  result  in light  of  the  applicable
statutory provisions. A tax result will not be considered unreasonable under the
anti-abuse rule in the absence of a substantial effect on the present value of a
taxpayer's  tax  liability.  Investors  are advised  to  consult  their  own tax
advisors as to the  discussion herein and the  appropriate method for  reporting
interest and original issue discount with respect to the Regular Certificates.
 
    Each  Regular Certificate (except to the extent described below with respect
to a  Regular  Certificate  on  which  principal  is  distributed  in  a  single
installment  or by  lots of  specified principal amounts  upon the  request of a
Certificateholder or  by random  lot  (a "Non-Pro  Rata Certificate"))  will  be
treated  as  a single  installment obligation  for  purposes of  determining the
original issue discount includible in a Regular Certificateholder's income.  The
total  amount of original issue discount on  a Regular Certificate is the excess
of the "stated redemption price at maturity" of the Regular Certificate over its
"issue price."  The issue  price  of a  Class  of Regular  Certificates  offered
pursuant  to this Prospectus generally is the first price at which a substantial
amount of such Class is sold to  the public (excluding bond houses, brokers  and
underwriters). Although unclear under the OID Regulations, the Seller intends to
treat  the issue price of a Class as to which there is no substantial sale as of
the issue date or  that is retained by  the Seller as the  fair market value  of
that  Class as of the issue date. The  issue price of a Regular Certificate also
includes any amount  paid by  an initial Regular  Certificateholder for  accrued
interest  that  relates to  a  period prior  to the  issue  date of  the Regular
Certificate, unless the Regular Certificateholder  elects on its federal  income
tax  return to exclude such amount from the issue price and to recover it on the
first Distribution Date. The  stated redemption price at  maturity of a  Regular
Certificate  always  includes  the  original  principal  amount  of  the Regular
Certificate, but generally will  not include distributions  of interest if  such
distributions constitute "qualified stated interest." Under the OID Regulations,
qualified  stated interest  generally means interest  payable at  a single fixed
rate or  a qualified  variable  rate (as  described  below) provided  that  such
interest  payments are unconditionally payable at  intervals of one year or less
during the entire term of the  Regular Certificate. Because there is no  penalty
or  default  remedy in  the case  of nonpayment  of interest  with respect  to a
Regular Certificate, it  is possible that  no interest on  any Class of  Regular
Certificates  will be treated  as qualified stated  interest. However, except as
provided in  the  following three  sentences  or in  the  applicable  Prospectus
Supplement,  because the underlying  Mortgage Loans provide  for remedies in the
event of  default, the  Seller intends  to treat  interest with  respect to  the
Regular  Certificates as qualified stated interest. Distributions of interest on
a Compound Interest Certificate, or  on other Regular Certificates with  respect
to  which deferred  interest will accrue,  will not  constitute qualified stated
interest, in which case the stated redemption price at maturity of such  Regular
Certificates  includes  all  distributions  of  interest  as  well  as principal
thereon. Likewise, the Seller intends to treat an interest-only Class or a Class
on which interest is substantially
 
                                       70
<PAGE>
disproportionate to its principal amount (a so-called "super-premium" Class)  as
having  no qualified stated interest. Where  the interval between the issue date
and the first  Distribution Date on  a Regular Certificate  is shorter than  the
interval between subsequent Distribution Dates, the interest attributable to the
additional days will be included in the stated redemption price at maturity.
 
    Under  a DE MINIMIS  rule, original issue discount  on a Regular Certificate
will be considered to be zero if such original issue discount is less than 0.25%
of the stated redemption price at maturity of the Regular Certificate multiplied
by the weighted average maturity of  the Regular Certificate. For this  purpose,
the  weighted average maturity of the Regular Certificate is computed as the sum
of the  amounts  determined by  multiplying  the  number of  full  years  (I.E.,
rounding  down partial  years) from  the issue  date until  each distribution in
reduction of stated redemption price  at maturity is scheduled  to be made by  a
fraction,  the numerator of which is the amount of each distribution included in
the stated  redemption price  at maturity  of the  Regular Certificate  and  the
denominator  of which is the stated redemption  price at maturity of the Regular
Certificate. The Conference Committee Report to  the 1986 Act provides that  the
schedule  of  such distributions  should be  determined  in accordance  with the
assumed rate of prepayment of  the Mortgage Loans (the "Prepayment  Assumption")
and  the  anticipated  reinvestment  rate,  if  any,  relating  to  the  Regular
Certificates. The  Prepayment Assumption  with respect  to a  Series of  Regular
Certificates  will be set forth in the applicable Prospectus Supplement. Holders
generally must report DE MINIMIS original  issue discount pro rata as  principal
payments  are received,  and such  income will  be capital  gain if  the Regular
Certificate is held  as a  capital asset.  Under the  OID Regulations,  however,
Regular  Certificateholders may  elect to accrue  all DE  MINIMIS original issue
discount as well as market discount and market premium, under the constant yield
method. See "Election to Treat All Interest Under the Constant Yield Method."
 
    A Regular Certificateholder generally must  include in gross income for  any
taxable  year the sum of the "daily portions," as defined below, of the original
issue discount on the Regular Certificate  accrued during an accrual period  for
each  day  on which  it holds  the  Regular Certificate,  including the  date of
purchase but  excluding the  date  of disposition.  The  Seller will  treat  the
monthly  period ending on the  day before each Distribution  Date as the accrual
period. With respect to each Regular Certificate, a calculation will be made  of
the  original issue  discount that accrues  during each  successive full accrual
period (or shorter period from the date of original issue) that ends on the  day
before  the related Distribution Date on the Regular Certificate. The Conference
Committee Report to the  1986 Act states  that the rate  of accrual of  original
issue  discount is intended to be based on the Prepayment Assumption. Other than
as discussed below  with respect  to a  Non-Pro Rata  Certificate, the  original
issue discount accruing in a full accrual period would be the excess, if any, of
(i) the sum of (a) the present value of all of the remaining distributions to be
made  on the Regular Certificate  as of the end of  that accrual period, and (b)
the distributions made on the Regular Certificate during the accrual period that
are included in the Regular  Certificate's stated redemption price at  maturity,
over  (ii) the adjusted issue price of  the Regular Certificate at the beginning
of the accrual period. The present value of the remaining distributions referred
to in the preceding sentence is calculated based on (i) the yield to maturity of
the Regular  Certificate  at  the  issue date,  (ii)  events  (including  actual
prepayments)  that have  occurred prior  to the end  of the  accrual period, and
(iii) the Prepayment Assumption. For these purposes, the adjusted issue price of
a Regular Certificate at  the beginning of any  accrual period equals the  issue
price  of the Regular Certificate, increased by the aggregate amount of original
issue discount with respect to the Regular Certificate that accrued in all prior
accrual periods  and reduced  by the  amount of  distributions included  in  the
Regular  Certificate's stated redemption price at maturity that were made on the
Regular Certificate in such prior periods. The original issue discount  accruing
during any accrual period (as determined in this paragraph) will then be divided
by  the number of days in the period  to determine the daily portion of original
issue discount for each day  in the period. With  respect to an initial  accrual
period  shorter than a full accrual period, the daily portions of original issue
discount must be  determined according  to an appropriate  allocation under  any
reasonable method.
 
                                       71
<PAGE>
    Under  the  method described  above, the  daily  portions of  original issue
discount required  to  be included  in  income by  a  Regular  Certificateholder
generally  will  increase  to  take  into  account  prepayments  on  the Regular
Certificates as a result  of prepayments on the  Mortgage Loans that exceed  the
Prepayment  Assumption, and generally will decrease  (but not below zero for any
period) if  the  prepayments  are  slower than  the  Prepayment  Assumption.  An
increase  in  prepayments on  the Mortgage  Loans  with respect  to a  Series of
Regular Certificates can result  in both a change  in the priority of  principal
payments  with respect to certain Classes  of Regular Certificates and either an
increase or  decrease in  the daily  portions of  original issue  discount  with
respect to such Regular Certificates.
 
    In  the case of a Non-Pro Rata  Certificate, the Seller intends to determine
the yield to  maturity of such  Certificate based upon  the anticipated  payment
characteristics  of the  Class as  a whole  under the  Prepayment Assumption. In
general, the original issue discount  accruing on each Non-Pro Rata  Certificate
in  a full  accrual period would  be its  allocable share of  the original issue
discount with respect to the entire Class, as determined in accordance with  the
preceding paragraph. However, in the case of a distribution in retirement of the
entire  unpaid principal balance of any  Non-Pro Rata Certificate (or portion of
such unpaid  principal  balance), (a)  the  remaining unaccrued  original  issue
discount  allocable to such Certificate (or to  such portion) will accrue at the
time of  such distribution,  and  (b) the  accrual  of original  issue  discount
allocable  to each remaining Certificate of  such Class (or the remaining unpaid
principal balance  of a  partially  redeemed Non-Pro  Rata Certificate  after  a
distribution  of principal has  been received) will be  adjusted by reducing the
present value of  the remaining payments  on such Class  and the adjusted  issue
price  of such  Class to the  extent attributable  to the portion  of the unpaid
principal balance thereof  that was  distributed. The Seller  believes that  the
foregoing  treatment is consistent  with the "pro rata  prepayment" rules of the
OID Regulations,  but  with the  rate  of  accrual of  original  issue  discount
determined  based  on  the  Prepayment  Assumption for  the  Class  as  a whole.
Investors are advised to consult their tax advisors as to this treatment.
 
    ACQUISITION PREMIUM
 
    A purchaser of a  Regular Certificate at a  price greater than its  adjusted
issue  price  but less  than its  stated  redemption price  at maturity  will be
required to include  in gross income  the daily portions  of the original  issue
discount  on  the  Regular  Certificate  reduced pro  rata  by  a  fraction, the
numerator of which is the excess of its purchase price over such adjusted  issue
price  and  the denominator  of  which is  the  excess of  the  remaining stated
redemption price at maturity over the adjusted issue price. Alternatively,  such
a subsequent purchaser may elect to treat all such acquisition premium under the
constant  yield method, as described below  under the heading "Election to Treat
All Interest Under the Constant Yield Method."
 
    VARIABLE RATE REGULAR CERTIFICATES
 
    Regular Certificates  may provide  for interest  based on  a variable  rate.
Under the OID Regulations, interest is treated as payable at a variable rate if,
generally, (i) the issue price does not exceed the original principal balance by
more  than a specified amount  and (ii) the interest  compounds or is payable at
least annually at current values of (a) one or more "qualified floating  rates,"
(b)  a single fixed rate and one or  more qualified floating rates, (c) a single
"objective rate," or (d) a single fixed rate and a single objective rate that is
a "qualified inverse  floating rate." A  floating rate is  a qualified  floating
rate   if  variations  in  the  rate  can  reasonably  be  expected  to  measure
contemporaneous variations in the cost of newly borrowed funds, where such  rate
is subject to a multiple of not less than zero nor more than 1.35. Such rate may
also  be increased or decreased by  a fixed spread or subject  to a fixed cap or
floor, or a cap or floor that is not reasonably expected as of the issue date to
affect the yield of the instrument  significantly. An objective rate includes  a
rate  determined using a single  fixed formula and that is  based on one or more
qualified floating rates or the yield or changes in the price of actively traded
personal property. The Proposed OID  Regulations would expand the definition  of
objective  rate to include any rate (other  than a qualified floating rate) that
is determined  using a  single fixed  formula  and that  is based  on  objective
financial or economic information, provided that such
 
                                       72
<PAGE>
information  is not (i) within  the control of the issuer  or a related party or
(ii) unique to the circumstances of the  issuer or a related party. A  qualified
inverse floating rate is a rate equal to a fixed rate minus a qualified floating
rate  that inversely  reflects contemporaneous variations  in the  cost of newly
borrowed funds;  an  inverse floating  rate  that  is not  a  qualified  inverse
floating  rate  may  nevertheless  be  an objective  rate.  A  Class  of Regular
Certificates may be issued under this  Prospectus that does not have a  variable
rate  under the foregoing rules, for example, a Class that bears different rates
at different  times  during  the  period  it is  outstanding  such  that  it  is
considered  significantly "front-loaded" or "back-loaded"  within the meaning of
the OID Regulations. It is possible that such a Class may be considered to  bear
"contingent interest" within the meaning of the OID Regulations and the Proposed
OID  Regulations. The Proposed OID Regulations,  as they relate to the treatment
of  contingent  interest,  are  by   their  terms  not  applicable  to   Regular
Certificates.  However, if  final regulations  dealing with  contingent interest
with respect to Regular Certificates apply  the same principles as the  Proposed
OID  Regulations,  such  regulations  may lead  to  different  timing  of income
inclusion than  would  be  the  case under  the  OID  Regulations.  Furthermore,
application of such principles could lead to the characterization of gain on the
sale  of contingent interest Regular  Certificates as ordinary income. Investors
should consult their  tax advisors  regarding the appropriate  treatment of  any
Regular  Certificate that does not pay interest at a fixed rate or variable rate
as described in this paragraph.
 
    Under the REMIC Regulations, a Regular  Certificate (i) bearing a rate  that
qualifies  as a variable rate under the  OID Regulations that is tied to current
values of a  variable rate (or  the highest, lowest  or average of  two or  more
variable  rates, including a rate  based on the average cost  of funds of one or
more financial institutions), or a positive or negative multiple of such a  rate
(plus  or  minus a  specified  number of  basis  points), or  that  represents a
weighted average of rates on some or all of the Mortgage Loans, including such a
rate that is subject to one or more caps or floors, or (ii) bearing one or  more
such  variable rates for one or more periods, or one or more fixed rates for one
or more periods, and a different variable rate or fixed rate for other  periods,
qualifies  as  a  regular interest  in  a REMIC.  Accordingly,  unless otherwise
indicated in the applicable Prospectus  Supplement, the Seller intends to  treat
Regular  Certificates that qualify  as regular interests under  this rule in the
same manner as obligations bearing a  variable rate for original issue  discount
reporting purposes.
 
    The  amount of original issue discount with respect to a Regular Certificate
bearing a variable rate  of interest will accrue  in the manner described  above
under  "Original Issue Discount," with the yield to maturity and future payments
on such Regular Certificate generally to be determined by assuming that interest
will be payable for  the life of  the Regular Certificate  based on the  initial
rate  (or, if  different, the value  of the  applicable variable rate  as of the
pricing date) for the  relevant Class. Unless  required otherwise by  applicable
final  regulations,  the  Seller  intends to  treat  such  variable  interest as
qualified stated interest, other than  variable interest on an interest-only  or
super-premium  Class,  which will  be treated  as non-qualified  stated interest
includible  in  the  stated  redemption  price  at  maturity.  Ordinary   income
reportable  for any period will  be adjusted based on  subsequent changes in the
applicable interest rate index.
 
    Although unclear under  the OID  Regulations, unless  required otherwise  by
applicable  final regulations, the Seller  intends to treat Regular Certificates
bearing an interest rate that is a weighted average of the net interest rates on
Mortgage Loans as having  qualified stated interest, except  to the extent  that
initial  "teaser" rates cause sufficiently "back-loaded" interest to create more
than DE MINIMIS original issue discount. The yield on such Regular  Certificates
for  purposes of accruing  original issue discount will  be a hypothetical fixed
rate based on the  fixed rates, in  the case of fixed  rate Mortgage Loans,  and
initial  "teaser  rates"  followed  by  fully  indexed  rates,  in  the  case of
adjustable rate Mortgage Loans. In the  case of adjustable rate Mortgage  Loans,
the applicable index used to compute interest on the Mortgage Loans in effect on
the  pricing date (or  possibly the issue date)  will be deemed  to be in effect
beginning with the period  in which the first  weighted average adjustment  date
occurring  after the issue date occurs. Adjustments will be made in each accrual
period either increasing or decreasing the amount of ordinary income  reportable
to reflect the actual Pass-Through Rate on the Regular Certificates.
 
                                       73
<PAGE>
    MARKET DISCOUNT
 
    A  purchaser of  a Regular  Certificate also  may be  subject to  the market
discount rules of Code Sections 1276 through 1278. Under these sections and  the
principles  applied  by the  OID Regulations  in the  context of  original issue
discount, "market  discount" is  the amount  by which  the purchaser's  original
basis  in the Regular Certificate (i)  is exceeded by the then-current principal
amount of the Regular Certificate, or (ii) in the case of a Regular  Certificate
having  original issue discount, is exceeded by the adjusted issue price of such
Regular Certificate at the  time of purchase. Such  purchaser generally will  be
required  to recognize ordinary income to  the extent of accrued market discount
on such Regular Certificate as distributions includible in the stated redemption
price at maturity  thereof are  received, in an  amount not  exceeding any  such
distribution.  Such market discount would  accrue in a manner  to be provided in
Treasury regulations and should take into account the Prepayment Assumption. The
Conference Committee Report to the 1986 Act provides that until such regulations
are issued, such  market discount  would accrue  either (i)  on the  basis of  a
constant interest rate, or (ii) in the ratio of stated interest allocable to the
relevant  period to the sum  of the interest for  such period plus the remaining
interest as of the end of such period,  or in the case of a Regular  Certificate
issued  with original  issue discount, in  the ratio of  original issue discount
accrued for  the relevant  period to  the  sum of  the original  issue  discount
accrued for such period plus the remaining original issue discount as of the end
of  such  period. Such  purchaser also  generally  will be  required to  treat a
portion of any gain on a sale or exchange of the Regular Certificate as ordinary
income to the extent of the market  discount accrued to the date of  disposition
under  one of the foregoing methods, less any accrued market discount previously
reported as ordinary income as partial distributions in reduction of the  stated
redemption  price at maturity were received.  Such purchaser will be required to
defer deduction of a portion  of the excess of the  interest paid or accrued  on
indebtedness  incurred  to  purchase or  carry  a Regular  Certificate  over the
interest distributable thereon. The deferred portion of such interest expense in
any taxable year generally  will not exceed the  accrued market discount on  the
Regular  Certificate for  such year. Any  such deferred interest  expense is, in
general, allowed as a  deduction not later  than the year  in which the  related
market  discount income is recognized or the Regular Certificate is disposed of.
As an alternative to the inclusion of market discount in income on the foregoing
basis, the Regular  Certificateholder may  elect to include  market discount  in
income  currently as it  accrues on all market  discount instruments acquired by
such Regular Certificateholder in that taxable year or thereafter, in which case
the interest deferral rule will not  apply. See "Election to Treat All  Interest
Under  the Constant Yield Method" below regarding an alternative manner in which
such election may be deemed to be made.
 
    By analogy to the OID Regulations, market discount with respect to a Regular
Certificate will be considered to be zero  if such market discount is less  than
0.25%  of  the remaining  stated redemption  price at  maturity of  such Regular
Certificate  multiplied  by  the  weighted  average  maturity  of  the   Regular
Certificate  (determined  as  described  above  in  the  third  paragraph  under
"Original Issue Discount") remaining after the date of purchase. It appears that
DE MINIMIS market discount would be reported  in a manner similar to DE  MINIMIS
original   issue  discount.  See  "Original   Issue  Discount"  above.  Treasury
regulations implementing the market discount rules have not yet been issued, and
therefore  investors  should  consult  their  own  tax  advisors  regarding  the
application  of  these rules.  Investors should  also consult  Revenue Procedure
92-67 concerning the elections  to include market  discount in income  currently
and to accrue market discount on the basis of the constant yield method.
 
    PREMIUM
 
    A  Regular Certificate purchased at a cost greater than its remaining stated
redemption price  at maturity  generally  is considered  to  be purchased  at  a
premium.  If the Regular  Certificateholder holds such  Regular Certificate as a
"capital  asset"  within  the  meaning   of  Code  Section  1221,  the   Regular
Certificateholder  may elect  under Code  Section 171  to amortize  such premium
under  the  constant  yield  method.  Such  election  will  apply  to  all  debt
obligations  acquired by the Regular Certificateholder at a premium held in that
taxable  year  or  thereafter,  unless  revoked  with  the  permission  of   the
 
                                       74
<PAGE>
Internal  Revenue  Service.  The Conference  Committee  Report to  the  1986 Act
indicates a Congressional intent that the  same rules that apply to the  accrual
of market discount on installment obligations will also apply to amortizing bond
premium  under Code Section  171 on installment obligations  such as the Regular
Certificates, although it is  unclear whether the  alternatives to the  constant
interest   method  described  above  under   "Market  Discount"  are  available.
Amortizable bond premium will be  treated as an offset  to interest income on  a
Regular  Certificate, rather than as a separate deduction item. See "Election to
Treat  All  Interest  Under  the  Constant  Yield  Method"  below  regarding  an
alternative  manner in which the  Code Section 171 election  may be deemed to be
made.
 
    ELECTION TO TREAT ALL INTEREST UNDER THE CONSTANT YIELD METHOD
 
    A holder of a  debt instrument such  as a Regular  Certificate may elect  to
treat  all  interest that  accrues on  the instrument  using the  constant yield
method, with none of  the interest being treated  as qualified stated  interest.
For  purposes of applying the constant yield method to a debt instrument subject
to such an  election, (i)  "interest" includes stated  interest, original  issue
discount,  DE MINIMIS  original issue discount,  market discount  and DE MINIMIS
market discount,  as adjusted  by any  amortizable bond  premium or  acquisition
premium and (ii) the debt instrument is treated as if the instrument were issued
on  the holder's acquisition date  in the amount of  the holder's adjusted basis
immediately after  acquisition. It  is unclear  whether, for  this purpose,  the
initial  Prepayment Assumption  would continue to  apply or if  a new prepayment
assumption as of  the date  of the holder's  acquisition would  apply. A  holder
generally  may make such an election on an instrument by instrument basis or for
a class or  group of  debt instruments.  However, if  the holder  makes such  an
election with respect to a debt instrument with amortizable bond premium or with
market  discount, the holder is  deemed to have made  elections to amortize bond
premium or to report  market discount income currently  as it accrues under  the
constant  yield  method,  respectively, for  all  premium bonds  held  or market
discount bonds acquired by  the holder in the  same taxable year or  thereafter.
The  election is made on the holder's federal  income tax return for the year in
which the  debt  instrument is  acquired  and  is irrevocable  except  with  the
approval of the Internal Revenue Service. Investors should consult their own tax
advisors regarding the advisability of making such an election.
 
    TREATMENT OF LOSSES
 
    Regular Certificateholders will be required to report income with respect to
Regular  Certificates on the accrual method of accounting, without giving effect
to  delays  or   reductions  in  distributions   attributable  to  defaults   or
delinquencies  on the Mortgage Loans, except to the extent it can be established
that such  losses  are  uncollectible.  Accordingly, the  holder  of  a  Regular
Certificate,  particularly a Subordinated  Certificate, may have  income, or may
incur a diminution in cash flow as a result of a default or delinquency, but may
not be  able to  take a  deduction (subject  to the  discussion below)  for  the
corresponding  loss until a  subsequent taxable year.  In this regard, investors
are cautioned that while they may  generally cease to accrue interest income  if
it  reasonably appears  that the  interest will  be uncollectible,  the Internal
Revenue Service may take the position that original issue discount must continue
to be accrued  in spite  of its uncollectibility  until the  debt instrument  is
disposed of in a taxable transaction or becomes worthless in accordance with the
rules of Code Section 166. To the extent the rules of Code Section 166 regarding
bad  debts are applicable,  it appears that  Regular Certificateholders that are
corporations or that otherwise hold the Regular Certificates in connection  with
a  trade or business should in general be  allowed to deduct as an ordinary loss
such loss with respect to principal sustained during the taxable year on account
of any such  Regular Certificates  becoming wholly or  partially worthless,  and
that,  in general, Regular  Certificateholders that are  not corporations and do
not hold the Regular Certificates in connection with a trade or business  should
be  allowed to deduct as a short-term capital loss any loss sustained during the
taxable year on account of a  portion of any such Regular Certificates  becoming
wholly worthless. Although the matter is not free from doubt, such non-corporate
Regular  Certificateholders should be allowed a  bad debt deduction at such time
as the principal  balance of  such Regular  Certificates is  reduced to  reflect
losses  resulting  from  any  liquidated Mortgage  Loans.  The  Internal Revenue
Service, however, could  take the  position that non-corporate  holders will  be
allowed  a  bad  debt  deduction  to reflect  such  losses  only  after  all the
 
                                       75
<PAGE>
Mortgage Loans  remaining  in the  Trust  Estate  have been  liquidated  or  the
applicable  Class  of  Regular  Certificates  has  been  otherwise  retired. The
Internal  Revenue  Service  could  also  assert  that  losses  on  the   Regular
Certificates  are  deductible based  on some  other method  that may  defer such
deductions for all holders,  such as reducing future  cash flow for purposes  of
computing  original  issue  discount.  This  may  have  the  effect  of creating
"negative" original issue discount which would be deductible only against future
positive original issue  discount or  otherwise upon termination  of the  Class.
Regular Certificateholders are urged to consult their own tax advisors regarding
the  appropriate timing, amount and character of any loss sustained with respect
to such Regular Certificates. While  losses attributable to interest  previously
reported as income should be deductible as ordinary losses by both corporate and
non-corporate  holders, the Internal Revenue Service  may take the position that
losses attributable to accrued original issue  discount may only be deducted  as
capital  losses in the case of non-corporate holders who do not hold the Regular
Certificates in connection  with a  trade or  business. Special  loss rules  are
applicable  to banks and thrift institutions, including rules regarding reserves
for bad  debts.  Such  taxpayers  are advised  to  consult  their  tax  advisors
regarding the treatment of losses on Regular Certificates.
 
    SALE OR EXCHANGE OF REGULAR CERTIFICATES
 
    If a Regular Certificateholder sells or exchanges a Regular Certificate, the
Regular  Certificateholder will recognize gain or  loss equal to the difference,
if any,  between the  amount received  and  its adjusted  basis in  the  Regular
Certificate.  The adjusted basis  of a Regular  Certificate generally will equal
the cost of  the Regular Certificate  to the seller,  increased by any  original
issue  discount or  market discount  previously included  in the  seller's gross
income with respect to the Regular  Certificate and reduced by amounts  included
in  the stated redemption price at maturity of the Regular Certificate that were
previously received  by  the  seller,  by  any  amortized  premium  and  by  any
recognized losses.
 
    Except  as described  above with respect  to market discount,  and except as
provided in  this paragraph,  any gain  or loss  on the  sale or  exchange of  a
Regular Certificate realized by an investor who holds the Regular Certificate as
a capital asset will be capital gain or loss and will be long-term or short-term
depending  on whether  the Regular Certificate  has been held  for the long-term
capital gain holding period (currently, more  than one year). Such gain will  be
treated  as ordinary income  (i) if a Regular  Certificate is held  as part of a
"conversion transaction" as defined in Code Section 1258(c), up to the amount of
interest  that  would  have  accrued  on  the  Regular  Certificateholder's  net
investment  in the conversion transaction at  120% of the appropriate applicable
Federal rate  under Code  Section 1274(d)  in effect  at the  time the  taxpayer
entered  into the  transaction minus any  amount previously  treated as ordinary
income with respect to any prior disposition  of property that was held as  part
of such transaction, (ii) in the case of a non-corporate taxpayer, to the extent
such  taxpayer has  made an  election under Code  Section 163(d)(4)  to have net
capital gains taxed as investment income  at ordinary income rates, or (iii)  to
the  extent that such gain does not exceed the excess, if any, of (a) the amount
that would have been includible in the  gross income of the holder if its  yield
on  such Regular Certificate were 110% of  the applicable Federal rate as of the
date of purchase, over (b) the amount of income actually includible in the gross
income of such  holder with respect  to such Regular  Certificate. In  addition,
gain  or loss recognized from the sale of a Regular Certificate by certain banks
or thrift institutions will  be treated as ordinary  income or loss pursuant  to
Code Section 582(c). Pursuant to the Revenue Reconciliation Act of 1993, capital
gains of certain non-corporate taxpayers are subject to a lower maximum tax rate
than ordinary income of such taxpayers. The maximum tax rate for corporations is
the same with respect to both ordinary income and capital gains.
 
TAXATION OF RESIDUAL CERTIFICATES
 
    TAXATION OF REMIC INCOME
 
    Generally,  the "daily portions" of REMIC taxable income or net loss will be
includible as ordinary income or loss in determining the federal taxable  income
of  holders of Residual Certificates ("Residual Holders"), and will not be taxed
separately  to   the  REMIC   Pool.  The   daily  portions   of  REMIC   taxable
 
                                       76
<PAGE>
income  or net loss of a Residual  Holder are determined by allocating the REMIC
Pool's taxable income or net loss for each calendar quarter ratably to each  day
in  such quarter and by allocating such daily portion among the Residual Holders
in proportion to their respective holdings of Residual Certificates in the REMIC
Pool on  such day.  REMIC taxable  income is  generally determined  in the  same
manner  as  the taxable  income of  an  individual using  the accrual  method of
accounting, except  that  (i) the  limitations  on deductibility  of  investment
interest  expense and expenses for  the production of income  do not apply, (ii)
all bad loans will be deductible as business bad debts, and (iii) the limitation
on the deductibility of interest and expenses related to tax-exempt income  will
apply.  The REMIC Pool's gross income includes interest, original issue discount
income, and market discount  income, if any, on  the Mortgage Loans, reduced  by
amortization of any premium on the Mortgage Loans, plus income from amortization
of  issue  premium,  if  any,  on  the  Regular  Certificates,  plus  income  on
reinvestment of  cash  flows  and  reserve  assets,  plus  any  cancellation  of
indebtedness   income  upon  allocation  of   realized  losses  to  the  Regular
Certificates. The REMIC  Pool's deductions include  interest and original  issue
discount  expense on  the Regular Certificates,  servicing fees  on the Mortgage
Loans, other administrative expenses  of the REMIC Pool  and realized losses  on
the  Mortgage Loans. The requirement that Residual Holders report their pro rata
share of taxable income or net loss of the REMIC Pool will continue until  there
are no Certificates of any class of the related Series outstanding.
 
    The  taxable income recognized by a Residual Holder in any taxable year will
be affected by,  among other  factors, the  relationship between  the timing  of
recognition of interest and original issue discount or market discount income or
amortization of premium with respect to the Mortgage Loans, on the one hand, and
the  timing of  deductions for interest  (including original  issue discount) or
income from amortization of  issue premium on the  Regular Certificates, on  the
other  hand. In the event that an interest  in the Mortgage Loans is acquired by
the REMIC Pool at a discount, and one or more of such Mortgage Loans is prepaid,
the Residual  Holder may  recognize  taxable income  without being  entitled  to
receive a corresponding amount of cash because (i) the prepayment may be used in
whole  or in  part to  make distributions  in reduction  of principal  or Stated
Amount on the Regular Certificates, and (ii) the discount on the Mortgage  Loans
which  is  includible  in income  may  exceed  the deduction  allowed  upon such
distributions on those Regular Certificates on account of any unaccrued original
issue discount relating to those Regular  Certificates. When there is more  than
one  Class  of Regular  Certificates that  distribute  principal or  payments in
reduction  of  Stated  Amount  sequentially,  this  mismatching  of  income  and
deductions is particularly likely to occur in the early years following issuance
of  the Regular  Certificates when  distributions in  reduction of  principal or
Stated  Amount  are  being  made  in  respect  of  earlier  Classes  of  Regular
Certificates  to the  extent that such  Classes are not  issued with substantial
discount or are issued at  a premium. If taxable  income attributable to such  a
mismatching  is realized, in general, losses would  be allowed in later years as
distributions on the later  maturing Classes of  Regular Certificates are  made.
Taxable  income may also  be greater in earlier  years than in  later years as a
result of the fact that interest  expense deductions, expressed as a  percentage
of  the outstanding principal  amount of such a  Series of Regular Certificates,
may increase over  time as  distributions in  reduction of  principal or  Stated
Amount  are made on the lower yielding Classes of Regular Certificates, whereas,
to the extent  the REMIC Pool  consists of fixed  rate Mortgage Loans,  interest
income with respect to any given Mortgage Loan will remain constant over time as
a  percentage of  the outstanding principal  amount of  that loan. Consequently,
Residual Holders must have sufficient other sources of cash to pay any  federal,
state,  or local income taxes  due as a result  of such mismatching or unrelated
deductions against which  to offset such  income, subject to  the discussion  of
"excess  inclusions" below under "-- Limitations on Offset or Exemption of REMIC
Income." The timing of  such mismatching of income  and deductions described  in
this  paragraph, if present with respect to a Series of Certificates, may have a
significant adverse effect upon a Residual Holder's after-tax rate of return. In
addition, a Residual Holder's taxable  income during certain periods may  exceed
the income reflected by such Residual Holder for such periods in accordance with
generally  accepted accounting  principles. Investors  should consult  their own
accountants concerning the accounting treatment of their investment in  Residual
Certificates.
 
                                       77
<PAGE>
    BASIS AND LOSSES
 
    The  amount of any net loss of the REMIC Pool that may be taken into account
by the  Residual  Holder  is limited  to  the  adjusted basis  of  the  Residual
Certificate  as  of the  close of  the quarter  (or time  of disposition  of the
Residual Certificate if earlier), determined without taking into account the net
loss for the quarter. The  initial adjusted basis of  a purchaser of a  Residual
Certificate  is the  amount paid  for such  Residual Certificate.  Such adjusted
basis will  be increased  by the  amount of  taxable income  of the  REMIC  Pool
reportable  by the Residual Holder  and will be decreased  (but not below zero),
first, by a cash distribution from the REMIC Pool and, second, by the amount  of
loss  of the  REMIC Pool  reportable by  the Residual  Holder. Any  loss that is
disallowed on account of this limitation  may be carried over indefinitely  with
respect  to the Residual Holder  as to whom such loss  was disallowed and may be
used by such Residual  Holder only to  offset any income  generated by the  same
REMIC Pool.
 
    A Residual Holder will not be permitted to amortize directly the cost of its
Residual  Certificate as  an offset to  its share  of the taxable  income of the
related REMIC Pool. However, that taxable income will not include cash  received
by  the REMIC Pool that  represents a recovery of the  REMIC Pool's basis in its
assets. Such  recovery of  basis  by the  REMIC Pool  will  have the  effect  of
amortization  of the issue  price of the Residual  Certificates over their life.
However, in view of the possible acceleration of the income of Residual  Holders
described  above under "Taxation of REMIC Income," the period of time over which
such issue price is effectively amortized  may be longer than the economic  life
of the Residual Certificates.
 
    A Residual Certificate may have a negative value if the net present value of
anticipated tax liabilities exceeds the present value of anticipated cash flows.
The  REMIC  Regulations appear  to  treat the  issue  price of  such  a residual
interest as zero rather  than such negative amount  for purposes of  determining
the  REMIC Pool's  basis in  its assets. The  preamble to  the REMIC Regulations
states that the  Internal Revenue  Service may  provide future  guidance on  the
proper  tax  treatment of  payments  made by  a  transferor of  such  a residual
interest to induce the transferee to acquire the interest, and Residual  Holders
should consult their own tax advisors in this regard.
 
    Further,  to the extent that the initial adjusted basis of a Residual Holder
(other than an original holder) in the Residual Certificate is greater than  the
corresponding  portion  of the  REMIC Pool's  basis in  the Mortgage  Loans, the
Residual Holder will not  recover a portion of  such basis until termination  of
the   REMIC  Pool  unless  future  Treasury  regulations  provide  for  periodic
adjustments to the REMIC income otherwise  reportable by such holder. The  REMIC
Regulations  currently in effect do not so provide. See "-- Treatment of Certain
Items of REMIC Income and Expense -- Market Discount" below regarding the  basis
of  Mortgage  Loans  to the  REMIC  Pool and  "Sale  or Exchange  of  a Residual
Certificate" below regarding possible  treatment of a  loss upon termination  of
the REMIC Pool as a capital loss.
 
    TREATMENT OF CERTAIN ITEMS OF REMIC INCOME AND EXPENSE
 
    Although  the  Seller  intends  to  compute  REMIC  income  and  expense  in
accordance with the Code and  applicable regulations, the authorities  regarding
the  determination  of  specific items  of  income  and expense  are  subject to
differing interpretations. The Seller makes no representation as to the specific
method that it will use for reporting income with respect to the Mortgage  Loans
and  expenses with  respect to  the Regular  Certificates and  different methods
could result in different timing of reporting  of taxable income or net loss  to
Residual Holders or differences in capital gain versus ordinary income.
 
    ORIGINAL ISSUE DISCOUNT AND PREMIUM.  Generally, the REMIC Pool's deductions
for  original issue discount and income  from amortization of issue premium will
be determined in the  same manner as original  issue discount income on  Regular
Certificates  as  described above  under  "Taxation of  Regular  Certificates --
Original Issue Discount"  and "-- Variable  Rate Regular Certificates,"  without
regard to the DE MINIMIS rule described therein, and "-- Premium."
 
                                       78
<PAGE>
    MARKET DISCOUNT.  The REMIC Pool will have market discount income in respect
of  Mortgage Loans if, in general, the basis  of the REMIC Pool in such Mortgage
Loans is exceeded by their unpaid principal balances. The REMIC Pool's basis  in
such  Mortgage Loans is  generally the fair  market value of  the Mortgage Loans
immediately after the transfer thereof to the REMIC Pool. The REMIC  Regulations
provide  that such basis  is equal in the  aggregate to the  issue prices of all
regular and residual interests  in the REMIC Pool.  The accrued portion of  such
market discount would be recognized currently as an item of ordinary income in a
manner  similar  to original  issue discount.  Market discount  income generally
should  accrue  in  the  manner  described  above  under  "Taxation  of  Regular
Certificates -- Market Discount."
 
    PREMIUM.   Generally, if the  basis of the REMIC  Pool in the Mortgage Loans
exceeds the unpaid principal balances thereof, the REMIC Pool will be considered
to have acquired such Mortgage  Loans at a premium equal  to the amount of  such
excess.  As stated above, the  REMIC Pool's basis in  Mortgage Loans is the fair
market value of the Mortgage Loans, based  on the aggregate of the issue  prices
of  the regular and residual  interests in the REMIC  Pool immediately after the
transfer thereof to  the REMIC  Pool. In a  manner analogous  to the  discussion
above under "Taxation of Regular Certificates -- Premium," a person that holds a
Mortgage  Loan as a capital  asset under Code Section  1221 may elect under Code
Section 171 to amortize premium on Mortgage Loans originated after September 27,
1985 under the constant yield method.  Amortizable bond premium will be  treated
as an offset to interest income on the Mortgage Loans, rather than as a separate
deduction  item. Because  substantially all  of the  mortgagors on  the Mortgage
Loans are expected to be individuals, Code Section 171 will not be available for
premium on Mortgage Loans originated on or prior to September 27, 1985.  Premium
with  respect to  such Mortgage  Loans may  be deductible  in accordance  with a
reasonable method regularly employed  by the holder  thereof. The allocation  of
such premium pro rata among principal payments should be considered a reasonable
method; however, the Internal Revenue Service may argue that such premium should
be  allocated in a different manner, such as allocating such premium entirely to
the final payment of principal.
 
    LIMITATIONS ON OFFSET OR EXEMPTION OF REMIC INCOME
 
    Except in the case of certain thrift institutions, a portion (or all) of the
REMIC taxable income includible in determining the federal income tax  liability
of  a  Residual  Holder will  be  subject  to special  treatment.  That portion,
referred to as the "excess inclusion," is  equal to the excess of REMIC  taxable
income  for the  calendar quarter allocable  to a Residual  Certificate over the
daily accruals for such quarterly period of (i) 120% of the long-term applicable
Federal rate that would have applied to  the Residual Certificate (if it were  a
debt  instrument) on the  Startup Day under Code  Section 1274(d), multiplied by
(ii) the adjusted issue price of  such Residual Certificate at the beginning  of
such  quarterly period. For this purpose, the adjusted issue price of a Residual
Certificate at the beginning  of a quarter  is the issue  price of the  Residual
Certificate, plus the amount of such daily accruals of REMIC income described in
this  paragraph for all prior quarters, decreased by any distributions made with
respect to such Residual  Certificate prior to the  beginning of such  quarterly
period. Accordingly, the portion of the REMIC Pool's taxable income that will be
treated  as excess  inclusions will be  a larger  portion of such  income as the
adjusted issue price of the Residual Certificates diminishes.
 
    The portion of a  Residual Holder's REMIC taxable  income consisting of  the
excess inclusions generally may not be offset by other deductions, including net
operating  loss carryforwards, on such Residual Holder's return. Further, if the
Residual Holder is  an organization  subject to  the tax  on unrelated  business
income imposed by Code Section 511, the Residual Holder's excess inclusions will
be  treated as  unrelated business  taxable income  of such  Residual Holder for
purposes of Code Section  511. In addition, REMIC  taxable income is subject  to
30% withholding tax with respect to certain persons who are not U.S. Persons (as
defined   below  under   "Tax-Related  Restrictions  on   Transfer  of  Residual
Certificates -- Foreign  Investors"), and  the portion  thereof attributable  to
excess  inclusions is not eligible for any  reduction in the rate of withholding
tax (by treaty  or otherwise).  See "Taxation  of Certain  Foreign Investors  --
Residual  Certificates" below. Finally,  if a real estate  investment trust or a
regulated investment company owns a  Residual Certificate, a portion  (allocated
under Treasury
 
                                       79
<PAGE>
regulations  yet to be issued)  of dividends paid by  the real estate investment
trust or  regulated investment  company could  not be  offset by  net  operating
losses  of its shareholders, would  constitute unrelated business taxable income
for  tax-exempt  shareholders,  and  would   be  ineligible  for  reduction   of
withholding to certain persons who are not U.S. Persons.
 
    An  exception  to  the  inability  of a  Residual  Holder  to  offset excess
inclusions with unrelated deductions  and net operating  losses applies to  Code
Section  593 institutions ("thrift institutions"). For purposes of applying this
rule, all  members of  an  affiliated group  filing  a consolidated  return  are
treated  as one taxpayer, except that  thrift institutions to which Code Section
593 applies,  together  with their  subsidiaries  formed to  issue  REMICs,  are
treated   as  separate   corporations.  Furthermore,  the   Code  provides  that
regulations may disallow the ability of  a thrift institution to use  deductions
to offset excess inclusions if necessary or appropriate to prevent the avoidance
of  tax. A thrift institution may not so offset its excess inclusions unless the
Residual Certificates  have "significant  value," which  requires that  (i)  the
Residual  Certificates have an issue  price that is at least  equal to 2% of the
aggregate  of  the  issue  prices  of  all  Residual  Certificates  and  Regular
Certificates  with respect to the REMIC  Pool, and (ii) the anticipated weighted
average life of  the Residual Certificates  is at least  20% of the  anticipated
weighted  average life of the REMIC  Pool. The anticipated weighted average life
of the Residual  Certificates is based  on all distributions  anticipated to  be
received with respect thereto (using the Prepayment Assumption). The anticipated
weighted  average life of the REMIC Pool  is the aggregate weighted average life
of  all  classes   of  interests   therein  (computed   using  all   anticipated
distributions  on a regular interest with  nominal or no principal). Finally, an
ordering rule under the REMIC Regulations provides that a thrift institution may
only offset  its excess  inclusion income  with deductions  after it  has  first
applied  its deductions against  income that is not  excess inclusion income. If
applicable, the Prospectus Supplement  with respect to a  Series will set  forth
whether  the  Residual Certificates  are  expected to  have  "significant value"
within the meaning of the REMIC Regulations.
 
    TAX-RELATED RESTRICTIONS ON TRANSFER OF RESIDUAL CERTIFICATES
 
    DISQUALIFIED ORGANIZATIONS.    If any  legal  or beneficial  interest  in  a
Residual  Certificate is transferred to  a Disqualified Organization (as defined
below), a tax  would be imposed  in an amount  equal to the  product of (i)  the
present  value of the  total anticipated excess inclusions  with respect to such
Residual Certificate  for  periods  after  the transfer  and  (ii)  the  highest
marginal   federal  income  tax  rate  applicable  to  corporations.  The  REMIC
Regulations provide that the anticipated  excess inclusions are based on  actual
prepayment  experience to the date of  the transfer and projected payments based
on the  Prepayment Assumption.  The  present value  rate equals  the  applicable
Federal  rate under Code  Section 1274(d) as of  the date of  the transfer for a
term ending  with the  last  calendar quarter  in  which excess  inclusions  are
expected  to accrue. Such  rate is applied to  the anticipated excess inclusions
from the end of the remaining calendar quarters in which they arise to the  date
of  the transfer. Such a tax generally would be imposed on the transferor of the
Residual Certificate,  except  that where  such  transfer is  through  an  agent
(including   a  broker,  nominee,   or  other  middleman)   for  a  Disqualified
Organization, the  tax  would instead  be  imposed  on such  agent.  However,  a
transferor  of a Residual Certificate  would in no event  be liable for such tax
with respect to  a transfer  if the transferee  furnishes to  the transferor  an
affidavit stating that the transferee is not a Disqualified Organization and, as
of  the time of the transfer, the transferor does not have actual knowledge that
such affidavit is  false. The tax  also may  be waived by  the Internal  Revenue
Service  if  the Disqualified  Organization  promptly disposes  of  the Residual
Certificate and the transferor pays income tax at the highest corporate rate  on
the excess inclusion for the period the Residual Certificate is actually held by
the Disqualified Organization.
 
    In  addition,  if  a "Pass-Through  Entity"  (as defined  below)  has excess
inclusion income with respect  to a Residual Certificate  during a taxable  year
and  a Disqualified Organization is  the record holder of  an equity interest in
such entity, then a tax  is imposed on such entity  equal to the product of  (i)
the  amount  of excess  inclusions that  are  allocable to  the interest  in the
Pass-Through Entity during the period such interest is held by such Disqualified
Organization, and (ii) the highest  marginal federal corporate income tax  rate.
Such   tax  would  be   deductible  from  the  ordinary   gross  income  of  the
 
                                       80
<PAGE>
Pass-Through Entity for the taxable year.  The Pass-Through Entity would not  be
liable for such tax if it has received an affidavit from such record holder that
it  is  not  a  Disqualified  Organization  or  stating  such  holder's taxpayer
identification number and, during the period such person is the record holder of
the Residual Certificate, the Pass-Through Entity does not have actual knowledge
that such affidavit is false.
 
    For these purposes, (i) "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 (provided, that such term does  not include an instrumentality if  all
of its activities are subject to tax and a majority of its board of directors is
not  selected  by any  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),  and 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, and (ii)  "Pass-Through
Entity"  means any regulated  investment company, real  estate investment trust,
common trust  fund,  partnership,  trust  or  estate  and  certain  corporations
operating  on  a  cooperative  basis.  Except as  may  be  provided  in Treasury
regulations, any  person holding  an  interest in  a  Pass-Through Entity  as  a
nominee  for  another will,  with  respect to  such  interest, be  treated  as a
Pass-Through Entity.
 
    The Pooling and Servicing  Agreement with respect to  a Series will  provide
that  no  legal  or  beneficial  interest  in  a  Residual  Certificate  may  be
transferred or registered unless  (i) the proposed  transferee furnishes to  the
Seller and the Trustee an affidavit providing its taxpayer identification number
and  stating  that  such transferee  is  the  beneficial owner  of  the Residual
Certificate and is not  a Disqualified Organization and  is not purchasing  such
Residual  Certificate  on  behalf of  a  Disqualified Organization  (I.E.,  as a
broker, nominee  or  middleman  thereof)  and (ii)  the  transferor  provides  a
statement  in  writing to  the  Seller and  the Trustee  that  it has  no actual
knowledge that  such affidavit  is false.  Moreover, the  Pooling and  Servicing
Agreement  will provide that any attempted or purported transfer in violation of
these transfer restrictions will be null and void and will vest no rights in any
purported transferee. Each Residual  Certificate with respect  to a Series  will
bear  a legend  referring to  such restrictions  on transfer,  and each Residual
Holder will be deemed to  have agreed, as a  condition of ownership thereof,  to
any amendments to the related Pooling and Servicing Agreement required under the
Code   or   applicable  Treasury   regulations   to  effectuate   the  foregoing
restrictions. Information necessary to compute an applicable excise tax must  be
furnished  to the Internal Revenue Service and to the requesting party within 60
days of  the request,  and  the Seller  or  the Trustee  may  charge a  fee  for
computing and providing such information.
 
    NONECONOMIC  RESIDUAL  INTERESTS.   The  REMIC  Regulations  would disregard
certain transfers of Residual Certificates,  in which case the transferor  would
continue  to be treated as the owner of the Residual Certificates and thus would
continue to be subject to tax on its allocable portion of the net income of  the
REMIC  Pool. Under the REMIC Regulations,  a transfer of a "noneconomic residual
interest" (as defined below) to a Residual Holder (other than a Residual  Holder
who  is  not a  U.S.  Person, as  defined  below under  "Foreign  Investors") is
disregarded for all federal income tax purposes if a significant purpose of  the
transferor is to impede the assessment or collection of tax. A residual interest
in  a REMIC (including a residual interest with a positive value at issuance) is
a "noneconomic residual interest" unless, at  the time of the transfer, (i)  the
present  value of the expected future  distributions on the residual interest at
least equals  the  product  of  the present  value  of  the  anticipated  excess
inclusions  and the highest corporate income tax  rate in effect for the year in
which the transfer occurs, and (ii)  the transferor reasonably expects that  the
transferee  will receive distributions  from the REMIC  at or after  the time at
which taxes accrue on the anticipated excess inclusions in an amount  sufficient
to  satisfy the accrued  taxes on each excess  inclusion. The anticipated excess
inclusions and the present value rate are  determined in the same manner as  set
forth  above under  "Disqualified Organizations." The  REMIC Regulations explain
that a significant purpose to impede the assessment or collection of tax  exists
if   the   transferor,  at   the   time  of   the   transfer,  either   knew  or
 
                                       81
<PAGE>
should have known that the transferee would be unwilling or unable to pay  taxes
due  on its share of the taxable income  of the REMIC. A safe harbor is provided
if (i)  the transferor  conducted, at  the time  of the  transfer, a  reasonable
investigation  of the financial  condition of the transferee  and found that the
transferee historically  had  paid its  debts  as they  came  due and  found  no
significant  evidence to indicate that the  transferee would not continue to pay
its debts as they came due in the future, and (ii) the transferee represents  to
the  transferor  that it  understands that,  as the  holder of  the non-economic
residual interest, the  transferee may incur  tax liabilities in  excess of  any
cash  flows generated  by the  interest and that  the transferee  intends to pay
taxes associated with  holding the  residual interest  as they  become due.  The
Pooling and Servicing Agreement with respect to each Series of Certificates will
require  the transferee of a  Residual Certificate to certify  to the matters in
the preceding  sentence as  part  of the  affidavit  described above  under  the
heading "Disqualified Organizations."
 
    FOREIGN  INVESTORS.   The REMIC Regulations  provide that the  transfer of a
Residual Certificate that has  "tax avoidance potential"  to a "foreign  person"
will  be disregarded for all federal tax purposes. This rule appears intended to
apply to a transferee who is not a "U.S. Person" (as defined below), unless such
transferee's income is  effectively connected  with the  conduct of  a trade  or
business  within the United States. A Residual Certificate is deemed to have tax
avoidance potential unless, at the time of the transfer, (i) the future value of
expected distributions equals at least 30% of the anticipated excess  inclusions
after  the  transfer,  and  (ii)  the  transferor  reasonably  expects  that the
transferee will receive sufficient distributions from the REMIC Pool at or after
the time at which the excess inclusions accrue and prior to the end of the  next
succeeding  taxable year  for the  accumulated withholding  tax liability  to be
paid. If the non-U.S. Person transfers  the Residual Certificate back to a  U.S.
Person,  the  transfer  will  be disregarded  and  the  foreign  transferor will
continue to be treated  as the owner  unless arrangements are  made so that  the
transfer  does not have  the effect of  allowing the transferor  to avoid tax on
accrued excess inclusions.
 
    The Prospectus  Supplement relating  to  the Certificates  of a  Series  may
provide  that a Residual Certificate  may not be purchased  by or transferred to
any person that  is not  a U.S.  Person or  may describe  the circumstances  and
restrictions  pursuant to  which such  a transfer  may be  made. The  term "U.S.
Person" means  a  citizen or  resident  of  the United  States,  a  corporation,
partnership  or other entity  created or organized  in or under  the laws of the
United States or any political subdivision  thereof, or an estate or trust  that
is subject to U.S. federal income tax regardless of the source of its income.
 
    SALE OR EXCHANGE OF A RESIDUAL CERTIFICATE
 
    Upon  the sale  or exchange of  a Residual Certificate,  the Residual Holder
will recognize gain or loss equal to the excess, if any, of the amount  realized
over  the  adjusted  basis  (as  described  above  under  "Taxation  of Residual
Certificates -- Basis  and Losses")  of such  Residual Holder  in such  Residual
Certificate  at the time of  the sale or exchange.  In addition to reporting the
taxable income of the REMIC Pool, a Residual Holder will have taxable income  to
the  extent that any  cash distribution to  it from the  REMIC Pool exceeds such
adjusted basis on that  Distribution Date. Such income  will be treated as  gain
from  the sale or exchange of the  Residual Certificate. It is possible that the
termination of the REMIC Pool may be treated as a sale or exchange of a Residual
Holder's Residual Certificate,  in which  case, if  the Residual  Holder has  an
adjusted  basis in its  Residual Certificate remaining when  its interest in the
REMIC Pool terminates, and  if it holds such  Residual Certificate as a  capital
asset  under Code Section  1221, then it  will recognize a  capital loss at that
time in the amount of such remaining adjusted basis.
 
    Any gain on the sale of a  Residual Certificate will be treated as  ordinary
income  (i)  if  a  Residual  Certificate  is  held  as  part  of  a "conversion
transaction" as defined in  Code Section 1258(c), up  to the amount of  interest
that  would have accrued  on the Residual  Certificateholder's net investment in
the conversion transaction at 120% of the appropriate applicable Federal rate in
effect at the time  the taxpayer entered into  the transaction minus any  amount
previously treated as ordinary income with
 
                                       82
<PAGE>
respect  to any prior  disposition of property that  was held as  a part of such
transaction or (ii) in the case of a non-corporate taxpayer, to the extent  such
taxpayer  has made an election under Code  Section 163(d)(4) to have net capital
gains taxed as investment income at ordinary income rates. In addition, gain  or
loss  recognized from  the sale  of a Residual  Certificate by  certain banks or
thrift institutions will be treated as ordinary income or loss pursuant to  Code
Section 582(c).
 
    The  Conference Committee  Report to the  1986 Act provides  that, except as
provided in Treasury regulations yet to be  issued, the wash sale rules of  Code
Section  1091  will apply  to dispositions  of  Residual Certificates  where the
seller of  the Residual  Certificate,  during the  period beginning  six  months
before the sale or disposition of the Residual Certificate and ending six months
after  such sale or disposition, acquires  (or enters into any other transaction
that results in the application of  Code Section 1091) any residual interest  in
any  REMIC or  any interest in  a "taxable  mortgage pool" (such  as a non-REMIC
owner trust) that is economically comparable to a Residual Certificate.
 
    MARK TO MARKET REGULATIONS
 
    Prospective purchasers of the Residual Certificates should be aware that  on
January 3, 1995, the Internal Revenue Service released proposed regulations (the
"Proposed  Mark to Market  Regulations") under Code Section  475 relating to the
requirement that a securities dealer mark to market securities held for sale  to
customers.  This  mark-to-market  requirement  applies to  all  securities  of a
dealer, except  to the  extent that  the dealer  has specifically  identified  a
security as held for investment. The Proposed Mark to Market Regulations provide
that, for purposes of this mark-to-market requirement, a Residual Certificate is
not  treated as a  security and thus may  not be marked  to market. The Proposed
Mark to Market  Regulations apply to  all Residual Certificates  acquired on  or
after January 4, 1995.
 
TAXES THAT MAY BE IMPOSED ON THE REMIC POOL
 
    PROHIBITED TRANSACTIONS
 
    Income  from  certain  transactions  by the  REMIC  Pool,  called prohibited
transactions, will not be part of  the calculation of income or loss  includible
in  the federal income tax returns of Residual Holders, but rather will be taxed
directly to the  REMIC Pool at  a 100% rate.  Prohibited transactions  generally
include  (i)  the  disposition  of  a  qualified  mortgage  other  than  for (a)
substitution within two years  of the Startup Day  for a defective (including  a
defaulted)  obligation (or  repurchase in  lieu of  substitution of  a defective
(including a defaulted) obligation  at any time) or  for any qualified  mortgage
within  three months of  the Startup Day, (b)  foreclosure, default, or imminent
default of a qualified mortgage, (c) bankruptcy or insolvency of the REMIC Pool,
or (d)  a qualified  (complete) liquidation,  (ii) the  receipt of  income  from
assets  that are not the type of mortgages or investments that the REMIC Pool is
permitted to hold, (iii) the receipt  of compensation for services, or (iv)  the
receipt of gain from disposition of cash flow investments other than pursuant to
a  qualified liquidation. Notwithstanding  (i) and (iv), it  is not a prohibited
transaction to  sell  REMIC  Pool  property to  prevent  a  default  on  Regular
Certificates  as a result of a default on qualified mortgages or to facilitate a
clean-up call (generally, an optional  termination to save administrative  costs
when  no more than a  small percentage of the  Certificates is outstanding). The
REMIC Regulations indicate that  the modification of  a Mortgage Loan  generally
will  not  be treated  as a  disposition if  it  is occasioned  by a  default or
reasonably foreseeable default, an assumption  of the Mortgage Loan, the  waiver
of  a due-on-sale or due-on-encumbrance clause, or the conversion of an interest
rate by  a mortgagor  pursuant to  the terms  of a  convertible adjustable  rate
Mortgage Loan.
 
    CONTRIBUTIONS TO THE REMIC POOL AFTER THE STARTUP DAY
 
    In  general, the REMIC Pool will  be subject to a tax  at a 100% rate on the
value of  any property  contributed to  the REMIC  Pool after  the Startup  Day.
Exceptions  are provided for cash contributions to the REMIC Pool (i) during the
three months following the Startup Day, (ii) made to a qualified reserve fund by
a Residual Holder, (iii) in the nature of a guarantee, (iv) made to facilitate a
qualified liquidation  or  clean-up call,  and  (v) as  otherwise  permitted  in
Treasury  regulations yet to be issued. It is not anticipated that there will be
any contributions to the REMIC Pool after the Startup Day.
 
                                       83
<PAGE>
    NET INCOME FROM FORECLOSURE PROPERTY
 
    The REMIC  Pool  will  be subject  to  federal  income tax  at  the  highest
corporate  rate  on  "net  income  from  foreclosure  property,"  determined  by
reference to the rules applicable  to real estate investment trusts.  Generally,
property   acquired  by  deed  in  lieu  of  foreclosure  would  be  treated  as
"foreclosure property" for a period of two years, with possible extensions.  Net
income  from  foreclosure  property generally  means  gain  from the  sale  of a
foreclosure  property  that  is  inventory   property  and  gross  income   from
foreclosure property other than qualifying rents and other qualifying income for
a  real estate investment trust. It is  not anticipated that the REMIC Pool will
have any taxable net income from foreclosure property.
 
LIQUIDATION OF THE REMIC POOL
 
    If a REMIC Pool adopts a plan of complete liquidation, within the meaning of
Code Section 860F(a)(4)(A)(i), which may  be accomplished by designating in  the
REMIC  Pool's final tax return a date on which such adoption is deemed to occur,
and sells all of its assets (other  than cash) within a 90-day period  beginning
on  such date, the REMIC Pool will  not be subject to the prohibited transaction
rules on  the sale  of  its assets,  provided that  the  REMIC Pool  credits  or
distributes  in liquidation all of  the sale proceeds plus  its cash (other than
amounts retained to meet claims) to holders of Regular Certificates and Residual
Holders within the 90-day period.
 
ADMINISTRATIVE MATTERS
 
    The REMIC Pool will  be required to  maintain its books  on a calendar  year
basis  and to file federal income tax returns for federal income tax purposes in
a manner similar to a partnership. The  form for such income tax return is  Form
1066,  U.S.  Real  Estate Mortgage  Investment  Conduit Income  Tax  Return. The
Trustee will be required to sign the REMIC Pool's returns. Treasury  regulations
provide  that, except  where there  is a  single Residual  Holder for  an entire
taxable  year,  the  REMIC   Pool  will  be  subject   to  the  procedural   and
administrative  rules  of the  Code  applicable to  partnerships,  including the
determination by the Internal Revenue Service of any adjustments to, among other
things, items of  REMIC income, gain,  loss, deduction, or  credit in a  unified
administrative  proceeding. The Master Servicer will be obligated to act as "tax
matters person," as defined in applicable Treasury regulations, with respect  to
the  REMIC  Pool, in  its capacity  as either  Residual Holder  or agent  of the
Residual Holders. If the Code or  applicable Treasury regulations do not  permit
the Master Servicer to act as tax matters person in its capacity as agent of the
Residual  Holders, the  Residual Holder chosen  by the Residual  Holders or such
other person specified pursuant to Treasury regulations will be required to  act
as tax matters person.
 
LIMITATIONS ON DEDUCTION OF CERTAIN EXPENSES
 
    An  investor  who is  an individual,  estate,  or trust  will be  subject to
limitation with respect to certain itemized deductions described in Code Section
67, to the extent that such itemized deductions, in the aggregate, do not exceed
2% of  the  investor's adjusted  gross  income.  In addition,  Code  Section  68
provides  that itemized deductions otherwise allowable  for a taxable year of an
individual taxpayer will be reduced  by the lesser of (i)  3% of the excess,  if
any,  of adjusted gross income  over $100,000 ($50,000 in  the case of a married
individual filing a separate return)  (subject to adjustment for inflation),  or
(ii) 80% of the amount of itemized deductions otherwise allowable for such year.
In  the case of a REMIC Pool,  such deductions may include deductions under Code
Section 212 for  the Servicing  Fee and  all administrative  and other  expenses
relating  to the REMIC Pool, or any similar expenses allocated to the REMIC Pool
with respect to a regular interest it holds in another REMIC. Such investors who
hold REMIC  Certificates either  directly or  indirectly through  certain  pass-
through  entities may have  their pro rata  share of such  expenses allocated to
them as  additional gross  income, but  may  be subject  to such  limitation  on
deductions. In addition, such expenses are not deductible at all for purposes of
computing  the  alternative minimum  tax,  and may  cause  such investors  to be
subject to significant additional tax liability. Temporary Treasury  regulations
provide  that the additional  gross income and  corresponding amount of expenses
generally are to be allocated entirely  to the holders of Residual  Certificates
in    the   case   of   a   REMIC   Pool   that   would   not   qualify   as   a
 
                                       84
<PAGE>
fixed investment  trust  in the  absence  of  a REMIC  election.  However,  such
additional gross income and limitation on deductions will apply to the allocable
portion  of such expenses to holders of Regular Certificates, as well as holders
of Residual Certificates, where such Regular Certificates are issued in a manner
that is similar to pass-through certificates in a fixed investment trust. Unless
indicated otherwise in the applicable  Prospectus Supplement, all such  expenses
will  be  allocable to  the Residual  Certificates.  In general,  such allocable
portion will be determined based on  the ratio that a REMIC  Certificateholder's
income,  determined on  a daily  basis, bears  to the  income of  all holders of
Regular Certificates and Residual Certificates with respect to a REMIC Pool.  As
a  result,  individuals, estates  or trusts  holding REMIC  Certificates (either
directly or  indirectly through  a grantor  trust, partnership,  S  corporation,
REMIC,  or  certain  other  pass-through  entities  described  in  the foregoing
temporary Treasury  regulations)  may  have  taxable income  in  excess  of  the
interest income at the pass-through rate on Regular Certificates that are issued
in  a single class or otherwise  consistently with fixed investment trust status
or  in  excess  of  cash  distributions  for  the  related  period  on  Residual
Certificates.
 
TAXATION OF CERTAIN FOREIGN INVESTORS
 
    REGULAR CERTIFICATES
 
    Interest,  including  original  issue  discount,  distributable  to  Regular
Certificateholders who are non-resident  aliens, foreign corporations, or  other
Non-U.S.  Persons (as  defined below),  will be  considered "portfolio interest"
and, therefore, generally will not be  subject to 30% United States  withholding
tax,  provided that such  Non-U.S. Person (i) is  not a "10-percent shareholder"
within the  meaning  of  Code  Section  871(h)(3)(B)  or  a  controlled  foreign
corporation  described  in  Code  Section  881(c)(3)(C)  and  (ii)  provides the
Trustee, or the person who would otherwise be required to withhold tax from such
distributions under Code Section  1441 or 1442,  with an appropriate  statement,
signed under penalties of perjury, identifying the beneficial owner and stating,
among  other things, that the  beneficial owner of the  Regular Certificate is a
Non-U.S. Person. If  such statement,  or any  other required  statement, is  not
provided, 30% withholding will apply unless reduced or eliminated pursuant to an
applicable  tax  treaty or  unless the  interest on  the Regular  Certificate is
effectively connected with the conduct of a trade or business within the  United
States by such Non-U.S. Person. In the latter case, such Non-U.S. Person will be
subject  to United States federal income tax at regular rates. Investors who are
Non-U.S. Persons should consult  their own tax  advisors regarding the  specific
tax  consequences to  them of owning  a Regular Certificate.  The term "Non-U.S.
Person" means any person who is not a U.S. Person.
 
    RESIDUAL CERTIFICATES
 
    The Conference Committee Report to the 1986 Act indicates that amounts  paid
to  Residual Holders  who are  Non-U.S. Persons  generally should  be treated as
interest  for  purposes  of  the  30%  (or  lower  treaty  rate)  United  States
withholding  tax.  Treasury  regulations  provide  that  amounts  distributed to
Residual Holders may qualify as "portfolio interest," subject to the  conditions
described  in "Regular Certificates" above, but only  to the extent that (i) the
Mortgage Loans were  issued after July  18, 1984  and (ii) the  Trust Estate  or
segregated pool of assets therein (as to which a separate REMIC election will be
made), to which the Residual Certificate relates, consists of obligations issued
in  "registered form" within  the meaning of  Code Section 163(f)(1). Generally,
Mortgage Loans will not be, but regular interests in another REMIC Pool will be,
considered obligations issued in registered form. Furthermore, a Residual Holder
will not be entitled  to any exemption  from the 30%  withholding tax (or  lower
treaty  rate)  to  the extent  of  that  portion of  REMIC  taxable  income that
constitutes an "excess  inclusion." See  "Taxation of  Residual Certificates  --
Limitations  on Offset  or Exemption  of REMIC Income."  If the  amounts paid to
Residual Holders who  are Non-U.S.  Persons are effectively  connected with  the
conduct  of  a trade  or  business within  the  United States  by  such Non-U.S.
Persons, 30% (or  lower treaty rate)  withholding will not  apply. Instead,  the
amounts  paid to such Non-U.S. Persons will  be subject to United States federal
income tax  at regular  rates. If  30%  (or lower  treaty rate)  withholding  is
applicable,  such amounts generally  will be taken into  account for purposes of
withholding only  when  paid or  otherwise  distributed (or  when  the  Residual
Certificate is disposed of)
 
                                       85
<PAGE>
under  rules similar  to withholding upon  disposition of  debt instruments that
have original  issue  discount. See  "Tax-Related  Restrictions on  Transfer  of
Residual  Certificates -- Foreign  Investors" above concerning  the disregard of
certain transfers having "tax avoidance  potential." Investors who are  Non-U.S.
Persons  should  consult  their  own tax  advisors  regarding  the  specific tax
consequences to them of owning Residual Certificates.
 
BACKUP WITHHOLDING
 
    Distributions made on the Regular  Certificates, and proceeds from the  sale
of  the Regular Certificates to or through  certain brokers, may be subject to a
"backup" withholding tax under Code Section 3406 of 31% on "reportable payments"
(including interest distributions, original  issue discount, and, under  certain
circumstances,  principal  distributions) unless  the  Regular Certificateholder
complies with certain reporting  and/or certification procedures, including  the
provision of its taxpayer identification number to the Trustee, its agent or the
broker   who   effected  the   sale  of   the   Regular  Certificate,   or  such
Certificateholder is otherwise an  exempt recipient under applicable  provisions
of  the  Code. Any  amounts  to be  withheld  from distribution  on  the Regular
Certificates would be refunded by the  Internal Revenue Service or allowed as  a
credit against the Regular Certificateholder's federal income tax liability.
 
REPORTING REQUIREMENTS
 
    Reports  of  accrued  interest,  original  issue  discount  and  information
necessary to compute the accrual of market discount will be made annually to the
Internal  Revenue   Service  and   to  individuals,   estates,  non-exempt   and
non-charitable  trusts, and  partnerships who  are either  holders of  record of
Regular Certificates or beneficial owners who own Regular Certificates through a
broker or middleman as nominee. All  brokers, nominees and all other  non-exempt
holders  of record of Regular Certificates (including corporations, non-calendar
year taxpayers,  securities  or  commodities  dealers,  real  estate  investment
trusts,  investment  companies,  common  trust  funds,  thrift  institutions and
charitable trusts)  may request  such information  for any  calendar quarter  by
telephone  or in writing by contacting the person designated in Internal Revenue
Service  Publication  938  with  respect  to  a  particular  Series  of  Regular
Certificates.  Holders through nominees  must request such  information from the
nominee.
 
    The Internal Revenue  Service's Form  1066 has an  accompanying Schedule  Q,
Quarterly  Notice to  Residual Interest Holders  of REMIC Taxable  Income or Net
Loss Allocation. Treasury regulations  require that Schedule  Q be furnished  by
the  REMIC Pool to  each Residual Holder by  the end of  the month following the
close of  each calendar  quarter  (41 days  after the  end  of a  quarter  under
proposed Treasury regulations) in which the REMIC Pool is in existence.
 
    Treasury   regulations   require  that,   in   addition  to   the  foregoing
requirements, information  must  be  furnished quarterly  to  Residual  Holders,
furnished annually, if applicable, to holders of Regular Certificates, and filed
annually  with the Internal Revenue Service  concerning Code Section 67 expenses
(see "Limitations on  Deduction of  Certain Expenses" above)  allocable to  such
holders.  Furthermore,  under such  regulations,  information must  be furnished
quarterly  to  Residual  Holders,  furnished  annually  to  holders  of  Regular
Certificates,  and filed annually  with the Internal  Revenue Service concerning
the percentage of  the REMIC  Pool's assets  meeting the  qualified asset  tests
described above under "Status of REMIC Certificates."
 
FEDERAL INCOME TAX CONSEQUENCES FOR CERTIFICATES AS TO WHICH NO REMIC ELECTION
IS MADE
 
    GENERAL
 
    In  the  event that  no  election is  made  to treat  a  Trust Estate  (or a
segregated pool of assets therein) with respect to a Series of Certificates as a
REMIC, the Trust Estate will be classified  as a grantor trust under subpart  E,
Part  1 of  subchapter J  of the  Code and  not as  an association  taxable as a
corporation or a  "taxable mortgage  pool" within  the meaning  of Code  Section
7701(i).  Where there is  no Fixed Retained  Yield with respect  to the Mortgage
Loans underlying the Certificates of a  Series, and where such Certificates  are
not   designated   as  "Stripped   Certificates,"  the   holder  of   each  such
 
                                       86
<PAGE>
Certificate in such Series will be treated as the owner of a pro rata  undivided
interest  in  the  ordinary  income  and corpus  portions  of  the  Trust Estate
represented by its Certificate and will be considered the beneficial owner of  a
pro  rata  undivided interest  in each  of  the Mortgage  Loans, subject  to the
discussion below under "Recharacterization of Servicing Fees." Accordingly,  the
holder of a Certificate of a particular Series will be required to report on its
federal  income tax  return its  pro rata  share of  the entire  income from the
Mortgage Loans represented by its Certificate, including interest at the  coupon
rate  on such Mortgage Loans, original issue discount (if any), prepayment fees,
assumption  fees,  and  late  payment  charges  received  by  the  Servicer,  in
accordance    with   such   Certificateholder's    method   of   accounting.   A
Certificateholder generally will be  able to deduct its  share of the  Servicing
Fee  and all administrative and other expenses of the Trust Estate in accordance
with its  method  of  accounting,  provided that  such  amounts  are  reasonable
compensation  for services rendered to that Trust Estate. However, investors who
are individuals,  estates or  trusts who  own Certificates,  either directly  or
indirectly  through certain pass-through entities, will be subject to limitation
with respect  to  certain itemized  deductions  described in  Code  Section  67,
including  deductions under Code Section 212 for  the Servicing Fee and all such
administrative and other expenses of the  Trust Estate, to the extent that  such
deductions,  in  the  aggregate, do  not  exceed  two percent  of  an investor's
adjusted gross  income. In  addition,  Code Section  68 provides  that  itemized
deductions otherwise allowable for a taxable year of an individual taxpayer will
be  reduced by the  lesser of (i)  3% of the  excess, if any,  of adjusted gross
income over  $100,000 ($50,000  in the  case of  a married  individual filing  a
separate  return) (in each case, as adjusted  for inflation), or (ii) 80% of the
amount of itemized deductions  otherwise allowable for such  year. As a  result,
such   investors  holding   Certificates,  directly  or   indirectly  through  a
pass-through entity,  may  have  aggregate  taxable  income  in  excess  of  the
aggregate  amount of cash received on such Certificates with respect to interest
at the  pass-through  rate  or  as discount  income  on  such  Certificates.  In
addition,  such expenses are not deductible at all for purposes of computing the
alternative minimum  tax,  and  may  cause  such  investors  to  be  subject  to
significant  additional tax liability.  Moreover, where there  is Fixed Retained
Yield with respect to the Mortgage Loans underlying a Series of Certificates  or
where the servicing fees are in excess of reasonable servicing compensation, the
transaction  will  be subject  to  the application  of  the "stripped  bond" and
"stripped coupon"  rules  of  the  Code,  as  described  below  under  "Stripped
Certificates" and "Recharacterization of Servicing Fees," respectively.
 
    TAX STATUS
 
    Cadwalader,  Wickersham  &  Taft  has advised  the  Seller  that,  except as
described below with respect to Stripped Certificates:
 
       1.  A Certificate owned  by a  "domestic building  and loan  association"
           within  the meaning of Code Section 7701(a)(19) will be considered to
    represent "loans...secured  by  an interest  in  real property"  within  the
    meaning  of Code Section 7701(a)(19)(C)(v),  provided that the real property
    securing the Mortgage Loans represented by  that Certificate is of the  type
    described in such section of the Code.
 
       2.  A  Certificate  owned by  a financial  institution described  in Code
           Section 593(a)  will  be  considered to  represent  "qualifying  real
    property  loans" within the meaning of Code Section 593(d)(1), provided that
    the  real  property  securing  the   Mortgage  Loans  represented  by   that
    Certificate is of the type described in such section of the Code.
 
       3.  A  Certificate  owned  by  a real  estate  investment  trust  will be
           considered to represent  "real estate assets"  within the meaning  of
    Code Section 856(c)(5)(A) to the extent that the assets of the related Trust
    Estate  consist of qualified assets, and interest income on such assets will
    be  considered  "interest  on  obligations  secured  by  mortgages  on  real
    property" to such extent within the meaning of Code Section 856(c)(3)(B).
 
       4.  A  Certificate owned  by a REMIC  will be considered  to represent an
           "obligation (including any participation or certificate of beneficial
    ownership therein) which is principally secured by
 
                                       87
<PAGE>
    an   interest  in  real  property"  within   the  meaning  of  Code  Section
    860G(a)(3)(A) to the  extent that  the assets  of the  related Trust  Estate
    consist  of  "qualified  mortgages"  within  the  meaning  of  Code  Section
    860G(a)(3).
 
    An issue arises as to whether  Buy-Down Loans may be characterized in  their
entirety  under  the  Code  provisions  cited  in clauses  1,  2  and  3  of the
immediately preceding  paragraph. Code  Section 593(d)(1)(C)  provides that  the
term  "qualifying real  property loan"  does not include  a loan  "to the extent
secured by a  deposit in  or share  of the  taxpayer." The  application of  this
provision  to a Buy-Down  Fund is uncertain,  but may require  that a taxpayer's
investment in  a Buy-Down  Loan  be reduced  by the  Buy-Down  Fund. As  to  the
treatment  of  Buy-Down Loans  as "qualifying  real  property loans"  under Code
Section 593(d)(1) if the exception of Code Section 593(d)(1)(C) is inapplicable,
as "loans...secured  by  an  interest  in  real  property"  under  Code  Section
7701(a)(19)(C)(v)  or as "real  estate assets" under  Code Section 856(c)(5)(A),
there is indirect authority supporting treatment of an investment in a  Buy-Down
Loan  as entirely secured by real property if  the fair market value of the real
property securing the loan exceeds the principal amount of the loan at the  time
of  issuance or acquisition, as the case may  be. There is no assurance that the
treatment described above is  proper. Accordingly, Certificateholders are  urged
to consult their own tax advisors concerning the effects of such arrangements on
the  characterization of such Certificateholder's  investment for federal income
tax purposes.
 
    PREMIUM AND DISCOUNT
 
    Certificateholders are advised to consult with their tax advisors as to  the
federal income tax treatment of premium and discount arising either upon initial
acquisition of Certificates or thereafter.
 
    PREMIUM.    The  treatment  of  premium  incurred  upon  the  purchase  of a
Certificate will  be  determined generally  as  described above  under  "Federal
Income   Tax  Consequences  for  REMIC  Certificates  --  Taxation  of  Residual
Certificates -- Premium."
 
    ORIGINAL ISSUE DISCOUNT.  The original issue discount rules of Code Sections
1271 through 1275 will be applicable to a Certificateholder's interest in  those
Mortgage  Loans as to which the conditions for the application of those sections
are met. Rules regarding  periodic inclusion of  original issue discount  income
are  applicable  to mortgages  of corporations  originated  after May  27, 1969,
mortgages of noncorporate mortgagors  (other than individuals) originated  after
July 1, 1982, and mortgages of individuals originated after March 2, 1984. Under
the OID Regulations, such original issue discount could arise by the charging of
points  by  the  originator of  the  mortgages  in an  amount  greater  than the
statutory DE MINIMIS exception, including a payment of points that is  currently
deductible  by the borrower  under applicable Code  provisions or, under certain
circumstances, by the presence of "teaser" rates on the Mortgage Loans. See  "--
Stripped  Certificates"  below  regarding original  issue  discount  on Stripped
Certificates.
 
    Original issue discount generally must be reported as ordinary gross  income
as  it accrues  under a  constant interest  method that  takes into  account the
compounding of interest,  in advance of  the cash attributable  to such  income.
Unless   indicated  otherwise  in  the   applicable  Prospectus  Supplement,  no
prepayment assumption will  be assumed  for purposes of  such accrual.  However,
Code  Section 1272  provides for  a reduction  in the  amount of  original issue
discount includible in the income of a holder of an obligation that acquires the
obligation after its initial  issuance at a  price greater than  the sum of  the
original  issue price and  the previously accrued  original issue discount, less
prior payments of principal. Accordingly, if  such Mortgage Loans acquired by  a
Certificateholder  are purchased at  a price equal to  the then unpaid principal
amount of such Mortgage  Loans, no original issue  discount attributable to  the
difference  between the  issue price and  the original principal  amount of such
Mortgage Loans (I.E., points) will be includible by such holder.
 
    MARKET DISCOUNT.   Certificateholders  also will  be subject  to the  market
discount  rules  to the  extent  that the  conditions  for application  of those
sections are met. Market discount on  the Mortgage Loans will be determined  and
will   be  reported  as  ordinary  income  generally  in  the  manner  described
 
                                       88
<PAGE>
above under "Federal Income Tax Consequences for REMIC Certificates --  Taxation
of  Regular Certificates  -- Market Discount,"  except that  the ratable accrual
methods described therein will not apply. Rather, the holder will accrue  market
discount pro rata over the life of the Mortgage Loans, unless the constant yield
method  is  elected. Unless  indicated  otherwise in  the  applicable Prospectus
Supplement, no  prepayment  assumption will  be  assumed for  purposes  of  such
accrual.
 
    RECHARACTERIZATION OF SERVICING FEES
 
    If  the servicing fees paid  to a Servicer were  deemed to exceed reasonable
servicing compensation, the amount of such excess would represent neither income
nor  a  deduction  to   Certificateholders.  In  this   regard,  there  are   no
authoritative  guidelines  for  federal income  tax  purposes as  to  either the
maximum amount of servicing  compensation that may  be considered reasonable  in
the  context of  this or  similar transactions  or whether,  in the  case of the
Certificate, the reasonableness of  servicing compensation should be  determined
on  a  weighted  average  or  loan-by-loan basis.  If  a  loan-by-loan  basis is
appropriate, the likelihood that such  amount would exceed reasonable  servicing
compensation  as  to some  of the  Mortgage Loans  would be  increased. Recently
issued Internal  Revenue Service  guidance  indicates that  a servicing  fee  in
excess  of reasonable compensation ("excess  servicing") will cause the Mortgage
Loans to be treated under the "stripped bond" rules. Such guidance provides safe
harbors for  servicing  deemed  to  be  reasonable  and  requires  taxpayers  to
demonstrate  that the value of  servicing fees in excess  of such amounts is not
greater than the value of the services provided.
 
    Accordingly, if  the  Internal  Revenue  Service's  approach  is  upheld,  a
Servicer  who receives a servicing fee in excess of such amounts would be viewed
as retaining an ownership interest in a portion of the interest payments on  the
Mortgage  Loans.  Under  the  rules  of Code  Section  1286,  the  separation of
ownership of the right  to receive some  or all of the  interest payments on  an
obligation  from the right to  receive some or all  of the principal payments on
the obligation would  result in treatment  of such Mortgage  Loans as  "stripped
coupons"  and "stripped bonds."  Subject to the DE  MINIMIS rule discussed below
under "-- Stripped Certificates," each stripped bond or stripped coupon could be
considered for this purpose as a  non-interest bearing obligation issued on  the
date  of issue of the Certificates, and the original issue discount rules of the
Code would apply to the holder thereof. While Certificateholders would still  be
treated  as owners of beneficial interests in a grantor trust for federal income
tax purposes, the corpus of such trust could be viewed as excluding the  portion
of  the Mortgage Loans the ownership of  which is attributed to the Servicer, or
as including such portion  as a second class  of equitable interest.  Applicable
Treasury  regulations treat  such an  arrangement as  a fixed  investment trust,
since the  multiple classes  of  trust interests  should  be treated  as  merely
facilitating  direct  investments  in  the trust  assets  and  the  existence of
multiple classes  of  ownership interests  is  incidental to  that  purpose.  In
general,  such a recharacterization should not  have any significant effect upon
the timing or amount of income reported by a Certificateholder, except that  the
income  reported  by  a cash  method  holder  may be  slightly  accelerated. See
"Stripped Certificates" below for  a further description  of the federal  income
tax treatment of stripped bonds and stripped coupons.
 
    SALE OR EXCHANGE OF CERTIFICATES
 
    Upon  sale or exchange of a  Certificate, a Certificateholder will recognize
gain or loss equal to the difference between the amount realized on the sale and
its aggregate adjusted basis in the Mortgage Loans and other assets  represented
by  the Certificate.  In general,  the aggregate  adjusted basis  will equal the
Certificateholder's cost for  the Certificate,  increased by the  amount of  any
income  previously reported with respect to the Certificate and decreased by the
amount of any losses previously reported with respect to the Certificate and the
amount of  any distributions  received thereon.  Except as  provided above  with
respect  to  market  discount on  any  Mortgage  Loans, and  except  for certain
financial institutions subject  to the  provisions of Code  Section 582(c),  any
such gain or loss generally would be capital gain or loss if the Certificate was
held  as a  capital asset. However,  gain on the  sale of a  Certificate will be
treated as ordinary income (i) if a Certificate is held as part of a "conversion
transaction" as defined in  Code Section 1258(c), up  to the amount of  interest
that  would  have  accrued  on the  Certificateholder's  net  investment  in the
conversion transaction at 120% of the appropriate
 
                                       89
<PAGE>
applicable Federal rate  in effect  at the time  the taxpayer  entered into  the
transaction  minus any amount previously treated as ordinary income with respect
to any prior disposition of property that was held as a part of such transaction
or (ii) in the case of a non-corporate taxpayer, to the extent such taxpayer has
made an election under Code Section 163(d)(4) to have net capital gains taxed as
investment  income  at   ordinary  income   rates.  Pursuant   to  the   Revenue
Reconciliation  Act of 1993 capital gains  of certain noncorporate taxpayers are
subject to a lower maximum tax rate than ordinary income of such taxpayers.  The
maximum  tax rate  for corporations  is the same  with respect  to both ordinary
income and capital gains.
 
STRIPPED CERTIFICATES
 
    GENERAL
 
    Pursuant to Code Section 1286, the  separation of ownership of the right  to
receive some or all of the principal payments on an obligation from ownership of
the  right  to receive  some  or all  of the  interest  payments results  in the
creation of "stripped bonds"  with respect to  principal payments and  "stripped
coupons"  with respect  to interest payments.  For purposes  of this discussion,
Certificates that are subject  to those rules will  be referred to as  "Stripped
Certificates." The Certificates will be subject to those rules if (i) the Seller
or  any  of its  affiliates  retains (for  its own  account  or for  purposes of
resale), in the form of Fixed Retained Yield or otherwise, an ownership interest
in a portion of the  payments on the Mortgage Loans,  (ii) the Seller or any  of
its  affiliates is treated as having an ownership interest in the Mortgage Loans
to the  extent it  is paid  (or  retains) servicing  compensation in  an  amount
greater  than  reasonable consideration  for servicing  the Mortgage  Loans (see
"Certificates -- Recharacterization of Servicing Fees" above), and (iii) a Class
of Certificates are issued in two or more Classes or Subclasses representing the
right to non-pro-rata percentages of the interest and principal payments on  the
Mortgage Loans.
 
    In  general, a holder  of a Stripped  Certificate will be  considered to own
"stripped bonds" with respect to its pro rata  share of all or a portion of  the
principal  payments on each Mortgage Loan and/or "stripped coupons" with respect
to its pro  rata share  of all or  a portion  of the interest  payments on  each
Mortgage  Loan,  including the  Stripped  Certificate's allocable  share  of the
servicing fees  paid to  a Servicer,  to  the extent  that such  fees  represent
reasonable  compensation for services  rendered. See the  discussion above under
"Certificates -- Recharacterization of Servicing  Fees." Although not free  from
doubt,  for purposes of reporting  to Stripped Certificateholders, the servicing
fees will  be  allocated to  the  Stripped  Certificates in  proportion  to  the
respective entitlements to distributions of each Class (or Subclass) of Stripped
Certificates  for  the  related period  or  periods.  The holder  of  a Stripped
Certificate generally will be  entitled to a deduction  each year in respect  of
the  servicing fees, as described above under "Certificates -- General," subject
to the limitation described therein.
 
    Code Section 1286 treats a stripped  bond or a stripped coupon generally  as
an  obligation  issued at  an  original issue  discount  on the  date  that such
stripped interest is purchased. Although the treatment of Stripped  Certificates
for  federal income tax purposes is not  clear in certain respects at this time,
particularly where  such Stripped  Certificates  are issued  with respect  to  a
Mortgage  Pool  containing variable-rate  Mortgage  Loans, the  Seller  has been
advised by counsel that (i) the Trust Estate will be treated as a grantor  trust
under  subpart E, Part I of  subchapter J of the Code  and not as an association
taxable as a corporation or a "taxable mortgage pool" within the meaning of Code
Section 7701(i),  and (ii)  each Stripped  Certificate should  be treated  as  a
single  installment  obligation  for  purposes  of  calculating  original  issue
discount and  gain  or loss  on  disposition. This  treatment  is based  on  the
interrelationship of Code Section 1286, Code Sections 1272 through 1275, and the
OID  Regulations.  Although it  is possible  that  computations with  respect to
Stripped Certificates could  be made in  one of the  ways described below  under
"Taxation  of Stripped Certificates  -- Possible Alternative Characterizations,"
the OID Regulations state, in general, that two or more debt instruments  issued
by  a  single issuer  to a  single investor  in a  single transaction  should be
treated as a single debt instrument. Accordingly, for OID purposes, all payments
on any Stripped Certificates should be
 
                                       90
<PAGE>
aggregated and treated as though they were made on a single debt instrument. The
Pooling and Servicing Agreement  will require that the  Trustee make and  report
all   computations  described  below  using   this  aggregate  approach,  unless
substantial legal authority requires otherwise.
 
    Furthermore, Treasury  regulations  issued  December 28,  1992  provide  for
treatment  of a Stripped Certificate  as a single debt  instrument issued on the
date it is purchased for purposes of calculating any original issue discount. In
addition, under  these regulations,  a Stripped  Certificate that  represents  a
right  to payments of both interest and principal may be viewed either as issued
with original issue discount  or market discount (as  described below), at a  DE
MINIMIS  original issue discount,  or, presumably, at  a premium. This treatment
indicates that the interest  component of such a  Stripped Certificate would  be
treated  as qualified stated interest under  the OID Regulations. Further, these
final regulations provide that the purchaser of such a Stripped Certificate will
be required to account for any discount as market discount rather than  original
issue  discount if either (i) the initial  discount with respect to the Stripped
Certificate was treated as zero under the DE MINIMIS rule, or (ii) no more  than
100  basis points in excess of reasonable  servicing is stripped off the related
Mortgage Loans. Any such market discount would be reportable as described  above
under  "Federal Income  Tax Consequences for  REMIC Certificates  -- Taxation of
Regular Certificates -- Market Discount," without regard to the DE MINIMIS  rule
therein, assuming that a prepayment assumption is employed in such computation.
 
    STATUS OF STRIPPED CERTIFICATES
 
    No  specific  legal authority  exists  as to  whether  the character  of the
Stripped Certificates, for federal income tax purposes, will be the same as that
of the Mortgage Loans. Although  the issue is not  free from doubt, counsel  has
advised the Seller that Stripped Certificates owned by applicable holders should
be  considered to represent "qualifying real  property loans" within the meaning
of Code  Section 593(d)(1),  "real estate  assets" within  the meaning  of  Code
Section  856(c)(5)(A),  "obligation[s]...principally secured  by an  interest in
real  property"  within   the  meaning  of   Code  Section  860G(a)(3)(A),   and
"loans...secured  by an  interest in real  property" within the  meaning of Code
Section 7701(a)(19)(C)(v),  and  interest (including  original  issue  discount)
income  attributable to Stripped Certificates  should be considered to represent
"interest on  obligations secured  by  mortgages on  real property"  within  the
meaning  of Code Section  856(c)(3)(B), provided that in  each case the Mortgage
Loans and  interest on  such  Mortgage Loans  qualify  for such  treatment.  The
application  of  such  Code  provisions  to  Buy-Down  Loans  is  uncertain. See
"Certificates -- Tax Status" above.
 
    TAXATION OF STRIPPED CERTIFICATES
 
    ORIGINAL ISSUE DISCOUNT.   Except as described  above under "General,"  each
Stripped Certificate will be considered to have been issued at an original issue
discount  for federal income tax purposes.  Original issue discount with respect
to a Stripped Certificate must be included in ordinary income as it accrues,  in
accordance  with  a  constant  interest  method  that  takes  into  account  the
compounding of  interest,  which  may  be  prior to  the  receipt  of  the  cash
attributable  to  such income.  Based in  part  on the  OID Regulations  and the
amendments to the original issue discount sections of the Code made by the  1986
Act, the amount of original issue discount required to be included in the income
of  a holder  of a  Stripped Certificate  (referred to  in this  discussion as a
"Stripped Certificateholder")  in  any  taxable year  likely  will  be  computed
generally  as described above  under "Federal Income  Tax Consequences for REMIC
Certificates -- Taxation of Regular Certificates -- Original Issue Discount" and
"-- Variable Rate Regular Certificates." However, with the apparent exception of
a Stripped  Certificate  issued  with  DE MINIMIS  original  issue  discount  as
described  above under "General," the issue price of a Stripped Certificate will
be the purchase  price paid by  each holder thereof,  and the stated  redemption
price  at maturity will include the aggregate  amount of the payments to be made
on the Stripped Certificate to such Stripped Certificateholder, presumably under
the Prepayment Assumption.
 
                                       91
<PAGE>
    If the Mortgage Loans  prepay at a  rate either faster  or slower than  that
under  the Prepayment Assumption, a  Stripped Certificateholder's recognition of
original issue discount will be either accelerated or decelerated and the amount
of such original issue discount will be either increased or decreased  depending
on  the  relative interests  in  principal and  interest  on each  Mortgage Loan
represented by such Stripped Certificateholder's Stripped Certificate. While the
matter is not free from  doubt, the holder of  a Stripped Certificate should  be
entitled  in the year that it  becomes certain (assuming no further prepayments)
that the  holder will  not  recover a  portion of  its  adjusted basis  in  such
Stripped  Certificate to recognize a loss (which may be a capital loss) equal to
such portion of unrecoverable basis.
 
    As an alternative to the method described  above, the fact that some or  all
of  the interest payments with respect to  the Stripped Certificates will not be
made if the  Mortgage Loans are  prepaid could lead  to the interpretation  that
such   interest  payments  are  "contingent"  within  the  meaning  of  the  OID
Regulations and the Proposed OID  Regulations. The Proposed OID Regulations,  as
they  relate to  the treatment  of contingent interest,  are by  their terms not
applicable to prepayable securities such as the Stripped Certificates.  However,
if  final  regulations  dealing with  contingent  interest with  respect  to the
Stripped Certificates apply the same principles as the Proposed OID Regulations,
such regulations may lead to different timing of income inclusion than would  be
the  case under the OID Regulations. Furthermore, application of such principles
could lead to the  characterization of gain on  the sale of contingent  interest
Stripped  Certificates as  ordinary income.  Investors should  consult their tax
advisors regarding the appropriate tax treatment of Stripped Certificates.
 
    SALE OR EXCHANGE OF STRIPPED CERTIFICATES.   Sale or exchange of a  Stripped
Certificate  prior to  its maturity  will result  in gain  or loss  equal to the
difference,  if   any,   between   the  amount   received   and   the   Stripped
Certificateholder's  adjusted basis  in such Stripped  Certificate, as described
above under "Federal Income Tax Consequences for REMIC Certificates --  Taxation
of  Regular Certificates  -- Sale or  Exchange of Regular  Certificates." To the
extent that a subsequent purchaser's purchase price is exceeded by the remaining
payments on  the  Stripped  Certificates,  such  subsequent  purchaser  will  be
required  for federal income tax purposes to accrue and report such excess as if
it were original issue discount in the  manner described above. It is not  clear
for  this purpose whether the assumed prepayment rate  that is to be used in the
case  of  a   Stripped  Certificateholder  other   than  an  original   Stripped
Certificateholder should be the Prepayment Assumption or a new rate based on the
circumstances at the date of subsequent purchase.
 
    PURCHASE  OF MORE THAN ONE CLASS OF STRIPPED CERTIFICATES.  When an investor
purchases more than one Class of Stripped Certificates, it is currently  unclear
whether  for federal income  tax purposes such  Classes of Stripped Certificates
should be treated separately or aggregated  for purposes of the rules  described
above.
 
    POSSIBLE  ALTERNATIVE  CHARACTERIZATIONS.    The  characterizations  of  the
Stripped Certificates discussed above are not the only possible  interpretations
of  the applicable Code provisions.  For example, the Stripped Certificateholder
may be treated as the owner of (i) one installment obligation consisting of such
Stripped Certificate's pro rata share of the payments attributable to  principal
on  each Mortgage  Loan and a  second installment obligation  consisting of such
Stripped Certificate's pro rata share  of the payments attributable to  interest
on  each Mortgage Loan, (ii) as many stripped bonds or stripped coupons as there
are scheduled payments of  principal and/or interest on  each Mortgage Loan,  or
(iii) a separate installment obligation for each Mortgage Loan, representing the
Stripped  Certificate's pro rata share of  payments of principal and/or interest
to be  made with  respect thereto.  Alternatively,  the holder  of one  or  more
Classes  of Stripped  Certificates may  be treated  as the  owner of  a pro rata
fractional undivided interest  in each  Mortgage Loan  to the  extent that  such
Stripped  Certificate,  or Classes  of Stripped  Certificates in  the aggregate,
represent the  same pro  rata portion  of principal  and interest  on each  such
Mortgage  Loan, and  a stripped bond  or stripped  coupon (as the  case may be),
treated as an installment obligation or contingent payment obligation, as to the
remainder. Final  regulations issued  on December  28, 1992  regarding  original
issue  discount on stripped obligations  make the foregoing interpretations less
likely to be applicable. The preamble to
 
                                       92
<PAGE>
those regulations  states that  they  are premised  on  the assumption  that  an
aggregation  approach  is  appropriate for  determining  whether  original issue
discount on  a stripped  bond or  stripped coupon  is DE  MINIMIS, and  solicits
comments  on  appropriate  rules  for aggregating  stripped  bonds  and stripped
coupons under Code Section 1286.
 
    Because of these possible varying characterizations of Stripped Certificates
and  the  resultant   differing  treatment  of   income  recognition,   Stripped
Certificateholders  are urged  to consult their  own tax  advisors regarding the
proper treatment of Stripped Certificates for federal income tax purposes.
 
REPORTING REQUIREMENTS AND BACKUP WITHHOLDING
 
    The Master Servicer will furnish, within a reasonable time after the end  of
each  calendar year, to each  Certificateholder or Stripped Certificateholder at
any time during  such year, such  information (prepared on  the basis  described
above)  as  is  necessary to  enable  such Certificateholders  to  prepare their
federal income tax returns. Such information will include the amount of original
issue  discount   accrued   on  Certificates   held   by  persons   other   than
Certificateholders exempted from the reporting requirements. The amount required
to  be reported by the Master Servicer may  not be equal to the proper amount of
original issue  discount  required  to  be  reported  as  taxable  income  by  a
Certificateholder,  other than  an original Certificateholder  that purchased at
the issue price.  In particular, in  the case of  Stripped Certificates,  unless
provided  otherwise in the applicable Prospectus Supplement, such reporting will
be based upon a representative initial offering price of each Class of  Stripped
Certificates.  The Master Servicer  will also file  such original issue discount
information with the Internal Revenue  Service. If a Certificateholder fails  to
supply  an accurate  taxpayer identification number  or if the  Secretary of the
Treasury determines that a Certificateholder  has not reported all interest  and
dividend  income required  to be  shown on  his federal  income tax  return, 31%
backup withholding may  be required in  respect of any  reportable payments,  as
described above under "Federal Income Tax Consequences for REMIC Certificates --
Backup Withholding."
 
TAXATION OF CERTAIN FOREIGN INVESTORS
 
    To  the extent that a Certificate evidences ownership in Mortgage Loans that
are issued on or before July 18, 1984, interest or original issue discount  paid
by  the  person required  to withhold  tax under  Code Section  1441 or  1442 to
nonresident aliens, foreign  corporations, or other  non-U.S. persons  ("foreign
persons")  generally will  be subject to  30% United States  withholding tax, or
such lower rate as  may be provided  for interest by  an applicable tax  treaty.
Accrued  original issue discount recognized by the Certificateholder on the sale
or exchange of such a Certificate also will be subject to federal income tax  at
the same rate.
 
    Treasury  regulations provide that interest  or original issue discount paid
by the  Trustee  or other  withholding  agent  to a  foreign  person  evidencing
ownership  interest  in  Mortgage  Loans  issued after  July  18,  1984  will be
"portfolio interest" and will be treated in the manner, and such persons will be
subject to the same certification  requirements, described above under  "Federal
Income  Tax Consequences for  REMIC Certificates --  Taxation of Certain Foreign
Investors -- Regular Certificates."
 
                              ERISA CONSIDERATIONS
 
GENERAL
 
    The Employee Retirement Income Security  Act of 1974, as amended  ("ERISA"),
imposes certain requirements on those employee benefit plans to which it applies
("Plans")  and on those persons who are  fiduciaries with respect to such Plans.
The following  is  a  general  discussion  of  such  requirements,  and  certain
applicable  exceptions to and administrative  exemptions from such requirements.
For purposes of this discussion, a  person investing on behalf of an  individual
retirement  account established under Code Section 408 (an "IRA") is regarded as
a fiduciary and the IRA as a Plan.
 
    Before purchasing any Certificates, a Plan fiduciary should consult with its
counsel and  determine whether  there exists  any prohibition  to such  purchase
under the requirements of ERISA,
 
                                       93
<PAGE>
whether  prohibited transaction  exemptions such as  PTE 83-1  or any individual
administrative exemption  (as described  below) applies,  including whether  the
appropriate  conditions set forth therein would be met, or whether any statutory
prohibited transaction exemption is applicable,  and further should consult  the
applicable Prospectus Supplement relating to such Series of Certificates.
 
CERTAIN REQUIREMENTS UNDER ERISA
 
    GENERAL.   In  accordance with  ERISA's general  fiduciary standards, before
investing in a Certificate a Plan fiduciary should determine whether to do so is
permitted under the governing Plan instruments  and is appropriate for the  Plan
in view of its overall investment policy and the composition and diversification
of  its  portfolio.  A  Plan  fiduciary  should  especially  consider  the ERISA
requirement of investment  prudence and  the sensitivity  of the  return on  the
Certificates  to the rate of principal repayments (including prepayments) on the
Mortgage Loans, as discussed in "Prepayment and Yield Considerations" herein.
 
    PARTIES IN INTEREST/DISQUALIFIED  PERSONS.  Other  provisions of ERISA  (and
corresponding  provisions of  the Code) prohibit  certain transactions involving
the assets of a Plan and persons who have certain specified relationships to the
Plan  (so-called  "parties  in  interest"   within  the  meaning  of  ERISA   or
"disqualified  persons" within the meaning of  the Code). The Seller, the Master
Servicer or Master Servicer or the  Trustee or certain affiliates thereof  might
be  considered or might  become "parties in  interest" or "disqualified persons"
with respect to a Plan. If so, the acquisition or holding of Certificates by  or
on  behalf  of such  Plan  could be  considered to  give  rise to  a "prohibited
transaction" within the meaning of ERISA  and the Code unless an  administrative
exemption described below or some other exemption is available.
 
    Special  caution should be exercised before  the assets of a Plan (including
assets that may be held in  an insurance company's separate or general  accounts
where  assets in such accounts may be  deemed Plan assets for purposes of ERISA)
are used to purchase a Certificate if, with respect to such assets, the  Seller,
the  Master Servicer or Master  Servicer or the Trustee  or an affiliate thereof
either: (a) has  investment discretion with  respect to the  investment of  such
assets  of  such  Plan; or  (b)  has  authority or  responsibility  to  give, or
regularly gives, investment  advice with respect  to such assets  for a fee  and
pursuant  to an  agreement or  understanding that  such advice  will serve  as a
primary basis for investment decisions with respect to such assets and that such
advice will be based on the particular investment needs of the Plan.
 
    DELEGATION OF FIDUCIARY DUTY.   Further, if the  assets included in a  Trust
Estate  were deemed  to constitute  Plan assets,  it is  possible that  a Plan's
investment in the Certificates might be deemed to constitute a delegation, under
ERISA, of the duty to manage Plan assets by the fiduciary deciding to invest  in
the  Certificates, and  certain transactions  involved in  the operation  of the
Trust Estate might be deemed  to constitute prohibited transactions under  ERISA
and the Code. Neither ERISA nor the Code define the term "plan assets."
 
    The  U.S. Department of Labor (the "Department") has issued regulations (the
"Regulations") concerning whether  or not  a Plan's  assets would  be deemed  to
include  an interest  in the  underlying assets  of an  entity (such  as a Trust
Estate) for  purposes of  the  reporting and  disclosure and  general  fiduciary
responsibility  provisions of ERISA,  as well as  for the prohibited transaction
provisions of ERISA  and the  Code, if the  Plan acquires  an "equity  interest"
(such as a Certificate) in such an entity.
 
    Certain  exceptions  are provided  in the  Regulations whereby  an investing
Plan's assets would be deemed merely to include its interest in the Certificates
instead of being deemed to include an interest in the assets of a Trust  Estate.
However,  it cannot  be predicted  in advance  nor can  there be  any continuing
assurance whether such exceptions may be  met, because of the factual nature  of
certain  of the  rules set  forth in  the Regulations.  For example,  one of the
exceptions in the  Regulations states that  the underlying assets  of an  entity
will  not be  considered "plan  assets" if  less than  25% of  the value  of all
classes of equity  interests are  held by  "benefit plan  investors," which  are
defined as Plans, IRAs,
 
                                       94
<PAGE>
and  employee  benefit plans  not subject  to  ERISA (for  example, governmental
plans), but this exception  is tested immediately after  each acquisition of  an
equity  interest in the entity whether upon initial issuance or in the secondary
market.
 
ADMINISTRATIVE EXEMPTIONS
 
    INDIVIDUAL   ADMINISTRATIVE   EXEMPTIONS.       Several   underwriters    of
mortgage-backed  securities  have  applied  for  and  obtained  ERISA prohibited
transaction exemptions (each,  an "Underwriter's Exemption")  which are in  some
respects  broader than  Prohibited Transaction  Class Exemption  83-1 (described
below). Such  exemptions can  only apply  to mortgage-backed  securities  which,
among  other conditions,  are sold  in an  offering with  respect to  which such
underwriter serves as the  sole or a  managing underwriter, or  as a selling  or
placement  agent. If  such an Underwriter's  Exemption might be  applicable to a
Series of Certificates, the applicable Prospectus Supplement will refer to  such
possibility.
 
    Among  the conditions that must be  satisfied for an Underwriter's Exemption
to apply are the following:
 
       (1) The acquisition of Certificates by a Plan is on terms (including  the
           price  for the  Certificates) that are  at least as  favorable to the
    Plan as  they would  be in  an arm's  length transaction  with an  unrelated
    party;
 
       (2) The  rights and interests  evidenced by Certificates  acquired by the
           Plan are not subordinated  to the rights  and interests evidenced  by
    other Certificates of the Trust Estate;
 
       (3) The  Certificates acquired by the Plan  have received a rating at the
           time of such  acquisition that is  one of the  three highest  generic
    rating  categories from either Standard  & Poor's ("S&P"), Moody's Investors
    Service, Inc. ("Moody's"), Duff & Phelps Credit Rating Co. ("DCR") or  Fitch
    Investors Service, L.P. ("Fitch");
 
       (4) The  Trustee must  not be  an affiliate  of any  other member  of the
           Restricted Group (as defined below);
 
       (5) The sum of all  payments made to and  retained by the underwriter  in
           connection  with the distribution of Certificates represents not more
    than reasonable compensation for underwriting  the Certificates. The sum  of
    all  payments made to and retained by  the Seller pursuant to the assignment
    of the Mortgage Loans to the Trust Estate represents not more than the  fair
    market  value of such  Mortgage Loans. The  sum of all  payments made to and
    retained by the Servicer (and any  other servicer) represents not more  than
    reasonable  compensation for  such person's  services under  the Pooling and
    Servicing Agreement and reimbursement  of such person's reasonable  expenses
    in connection therewith; and
 
       (6) The Plan investing in the Certificates is an "accredited investor" as
           defined  in  Rule 501(a)(1)  of Regulation  D  of the  Securities and
    Exchange Commission under the Securities Act of 1933.
 
    The Trust Estate must also meet the following requirements:
 
              (i)
               the assets of the Trust Estate  must consist solely of assets  of
               the type that have been included in other investment pools in the
       marketplace;
 
             (ii)
               certificates  in such other investment pools must have been rated
               in one of the  three highest rating  categories of S&P,  Moody's,
       Fitch or DCR for at least one year prior to the Plan's acquisition of the
       Certificates; and
 
            (iii)
               certificates  evidencing interests in such other investment pools
               must have been  purchased by  investors other than  Plans for  at
       least one year prior to any Plan's acquisition of the Certificates.
 
                                       95
<PAGE>
    If  the conditions to an  Underwriter's Exemption are met,  whether or not a
Plan's assets would be deemed to  include an ownership interest in the  Mortgage
Loans   in  a  mortgage  pool,  the  acquisition,  holding  and  resale  of  the
Certificates by Plans would be exempt from the prohibited transaction provisions
of ERISA and the Code.
 
    Moreover,  an  Underwriter's  Exemption  can  provide  relief  from  certain
self-dealing/conflict  of interest prohibited  transactions that may  occur if a
Plan fiduciary causes a Plan to acquire Certificates in a Trust Estate in  which
the fiduciary (or its affiliate) is an obligor on the Mortgage Loans held in the
Trust  Estate provided  that, among  other requirements: (i)  in the  case of an
acquisition in connection with  the initial issuance  of Certificates, at  least
fifty  percent of  each class  of Certificates in  which Plans  have invested is
acquired by  persons independent  of the  Restricted Group  and at  least  fifty
percent  of the aggregate  interest in the  Trust Estate is  acquired by persons
independent of the Restricted Group (as defined below); (ii) such fiduciary  (or
its  affiliate) is an obligor  with respect to five percent  or less of the fair
market value of  the Mortgage  Loans contained in  the Trust  Estate; (iii)  the
Plan's  investment  in Certificates  of any  Class  does not  exceed twenty-five
percent of all of the Certificates of that Class outstanding at the time of  the
acquisition  and (iv) immediately after the acquisition no more than twenty-five
percent of  the assets  of the  Plan  with respect  to which  such person  is  a
fiduciary  are invested in Certificates representing  an interest in one or more
trusts containing assets sold or served by the same entity.
 
    An Underwriter's Exemption does not apply to Plans sponsored by the  Seller,
the  underwriter specified in  the applicable Prospectus  Supplement, the Master
Servicer, the Trustee, the Servicer, any obligor with respect to Mortgage  Loans
included  in  the  Trust  Estate  constituting more  than  five  percent  of the
aggregate unamortized principal balance  of the assets in  the Trust Estate,  or
any affiliate of such parties (the "Restricted Group").
 
    PTE   83-1.    Prohibited  Transaction  Class  Exemption  83-1  for  Certain
Transactions Involving  Mortgage Pool  Investment  Trusts ("PTE  83-1")  permits
certain  transactions  involving the  creation,  maintenance and  termination of
certain residential mortgage pools  and the acquisition  and holding of  certain
residential mortgage pool pass-through certificates by Plans, whether or not the
Plan's  assets would be deemed to include an ownership interest in the mortgages
in such mortgage pools, and whether or not such transactions would otherwise  be
prohibited under ERISA.
 
    The  term "mortgage pool pass-through certificate" is defined in PTE 83-1 as
"a certificate  representing a  beneficial undivided  fractional interest  in  a
mortgage  pool and  entitling the holder  of such a  certificate to pass-through
payment of principal and interest from the pooled mortgage loans, less any  fees
retained  by the pool sponsor."  It appears that, for  purposes of PTE 83-1, the
term "mortgage pool pass-through certificate" would include Certificates  issued
in  a single Class or in multiple Classes that evidence the beneficial ownership
of both  a specified  percentage of  future interest  payments (after  permitted
deductions)  and a specified percentage of  future principal payments on a Trust
Estate.
 
    However, it appears that PTE  83-1 does or might  not apply to the  purchase
and holding of (a) Certificates that evidence the beneficial ownership only of a
specified percentage of future interest payments (after permitted deductions) on
a Trust Estate or only of a specified percentage of future principal payments on
a Trust Estate, (b) Residual Certificates, (c) Certificates evidencing ownership
interests in a Trust Estate which includes Mortgage Loans secured by multifamily
residential  properties or shares issued by cooperative housing corporations, or
(d) Certificates which are subordinated to other Classes of Certificates of such
Series. Accordingly, unless exemptive relief other than PTE 83-1 applies,  Plans
should not purchase any such Certificates.
 
    PTE  83-1 sets forth  "general conditions" and  "specific conditions" to its
applicability.  Section  II  of  PTE  83-1  sets  forth  the  following  general
conditions  to the application of the exemption: (i) the maintenance of a system
of insurance or other protection for  the pooled mortgage loans or the  property
securing  such loans, and for indemnifying certificateholders against reductions
in pass-through payments due  to property damage or  defaults in loan  payments;
(ii) the existence of a pool
 
                                       96
<PAGE>
trustee  who is not  an affiliate of  the pool sponsor;  and (iii) a requirement
that the sum of all payments made to  and retained by the pool sponsor, and  all
funds  inuring  to  the  benefit  of  the  pool  sponsor  as  a  result  of  the
administration of  the mortgage  pool,  must represent  not more  than  adequate
consideration  for selling the  mortgage loans plus  reasonable compensation for
services provided by the pool  sponsor to the pool.  The system of insurance  or
protection  referred to  in clause  (i) above  must provide  such protection and
indemnification up to an amount not less than the greater of one percent of  the
aggregate  unpaid  principal  balance  of the  pooled  mortgages  or  the unpaid
principal balance of the largest mortgage in  the pool. It should be noted  that
in  promulgating PTE 83-1 (and a  predecessor exemption), the Department did not
have under its consideration interests in pools  of the exact nature as some  of
the Certificates described herein.
 
EXEMPT PLANS
 
    Employee  benefit plans which are governmental  plans (as defined in Section
3(32) of ERISA), and certain church plans (as defined in Section 3(33) of ERISA)
are not subject to ERISA requirements and  assets of such plans may be  invested
in  Certificates without regard to the  ERISA considerations described above but
such plans may  be subject  to the provisions  of other  applicable federal  and
state law.
 
UNRELATED BUSINESS TAXABLE INCOME -- RESIDUAL CERTIFICATES
 
    The  purchase  of  a  Residual  Certificate  by  any  employee  benefit plan
qualified under Code Section 401(a) and exempt from taxation under Code  Section
501(a),  including most  varieties of ERISA  Plans, may give  rise to "unrelated
business taxable  income"  as  described  in Code  Sections  511-515  and  860E.
Further,   prior  to  the  purchase  of  Residual  Certificates,  a  prospective
transferee may be required to  provide an affidavit to  a transferor that it  is
not,  nor is it purchasing a Residual  Certificate on behalf of, a "Disqualified
Organization," which term as defined above includes certain tax-exempt  entities
not subject to Code Section 511 such as certain governmental plans, as discussed
above  under the  caption "Certain  Federal Income  Tax Consequences  -- Federal
Income  Tax  Consequences  for  REMIC  Certificates  --  Taxation  of   Residual
Certificates -- Tax-Related Restrictions on Transfer of Residual Certificates --
Disqualified Organizations."
 
    DUE  TO THE COMPLEXITY OF THESE RULES AND THE PENALTIES IMPOSED UPON PERSONS
INVOLVED IN PROHIBITED TRANSACTIONS, IT IS PARTICULARLY IMPORTANT THAT POTENTIAL
INVESTORS WHO  ARE PLAN  FIDUCIARIES CONSULT  WITH THEIR  COUNSEL REGARDING  THE
CONSEQUENCES UNDER ERISA OF THEIR ACQUISITION AND OWNERSHIP OF CERTIFICATES.
 
    THE  SALE OF CERTIFICATES TO A PLAN IS IN NO RESPECT A REPRESENTATION BY THE
SELLER OR THE  APPLICABLE UNDERWRITER  THAT THIS INVESTMENT  MEETS ALL  RELEVANT
LEGAL  REQUIREMENTS  WITH  RESPECT  TO INVESTMENTS  BY  PLANS  GENERALLY  OR ANY
PARTICULAR PLAN, OR THAT THIS INVESTMENT  IS APPROPRIATE FOR PLANS GENERALLY  OR
ANY PARTICULAR PLAN.
 
                                LEGAL INVESTMENT
 
    As  will  be  specified  in the  applicable  Prospectus  Supplement, certain
Classes of  Certificates  will  constitute  "mortgage  related  securities"  for
purposes  of the Secondary Mortgage Market  Enhancement Act of 1984 ("SMMEA") so
long as they are rated in one of  the two highest rating categories by at  least
one Rating Agency. As "mortgage related securities" such Classes will constitute
legal investments for persons, trusts, corporations, partnerships, associations,
business   trusts  and   business  entities   (including  but   not  limited  to
state-chartered savings banks, commercial  banks, savings and loan  associations
and  insurance  companies, as  well as  trustees  and state  government employee
retirement systems) created pursuant to or existing under the laws of the United
States or of  any state  (including the District  of Columbia  and Puerto  Rico)
whose  authorized investments are subject to state regulation to the same extent
that, under applicable law, obligations issued by or guaranteed as to  principal
and  interest  by the  United States  or any  agency or  instrumentality thereof
constitute legal investments for such entities.  Pursuant to SMMEA, a number  of
states  enacted legislation, on or  before the October 3,  1991 cut-off for such
enactments, limiting  to varying  extents the  ability of  certain entities  (in
particular, SMMEA insurance companies) to invest in mortgage related securities,
 
                                       97
<PAGE>
in  most cases by requiring the affected  investors to rely solely upon existing
state  law,  and  not  SMMEA.  Accordingly,  the  investors  affected  by   such
legislation  will be authorized to invest in the Certificates only to the extent
provided in such legislation.
 
    SMMEA also  amended the  legal investment  authority of  federally-chartered
depository  institutions as follows:  federal savings and  loan associations and
federal savings  banks may  invest  in, sell  or  otherwise deal  with  mortgage
related  securities  without limitation  as to  the  percentage of  their assets
represented thereby,  federal  credit  unions may  invest  in  mortgage  related
securities,  and  national banks  may purchase  mortgage related  securities for
their own  account without  regard to  the limitations  generally applicable  to
investment  securities set forth  in 12 U.S.C. Section  24 (Seventh), subject in
each case to such regulations as the applicable federal regulatory authority may
prescribe. In  this connection,  federal credit  unions should  review  National
Credit Union Administration ("NCUA") Letter to Credit Unions No. 96, as modified
by  Letter to Credit Unions No. 108, which includes guidelines to assist federal
credit unions in  making investment decisions  for mortgage related  securities.
The  NCUA has adopted  rules, codified as 12  C.F.R. Section 703.5(f)-(k), which
prohibit federal  credit  unions  from investing  in  certain  mortgage  related
securities  (such as the  Residual Certificates and  the Stripped Certificates),
except under limited circumstances.
 
    All depository institutions  considering an investment  in the  Certificates
should  review the "Supervisory Policy Statement on Securities Activities" dated
January 28, 1992,  as revised  April 15, 1994  (the "Policy  Statement") of  the
Federal  Financial Institutions Examination Council. The Policy Statement, which
has been adopted by the  Board of Governors of  the Federal Reserve System,  the
Federal  Deposit Insurance Corporation, the Comptroller  of the Currency and the
Office of  Thrift Supervision  and  by the  NCUA (with  certain  modifications),
prohibits  depository institutions from investing in certain "high-risk mortgage
securities" (including  securities such  as certain  Series and  Classes of  the
Certificates),  except  under  limited  circumstances,  and  sets  forth certain
investment practices deemed to be unsuitable for regulated institutions.
 
    Institutions whose  investment  activities  are  subject  to  regulation  by
federal  or  state  authorities  should review  rules,  policies  and guidelines
adopted from  time to  time by  such authorities  before purchasing  any of  the
Certificates,  as certain Series  or Classes (in  particular, Certificates which
are entitled  solely  or disproportionately  to  distributions of  principal  or
interest)  may be deemed unsuitable investments, or may otherwise be restricted,
under such rules, policies or  guidelines (in certain instances irrespective  of
SMMEA).
 
    The  foregoing  does  not  take  into  consideration  the  applicability  of
statutes,  rules,  regulations,  orders,  guidelines  or  agreements   generally
governing  investments made by a particular investor, including, but not limited
to, "prudent investor" provisions, percentage-of-assets limits, provisions which
may  restrict   or   prohibit   investment   in   securities   which   are   not
"interest-bearing"  or  "income-paying," and,  with  regard to  any Certificates
issued in book-entry form, provisions which may restrict or prohibit investments
in securities which are issued in book-entry form.
 
    Except as to  the status  of certain  Classes of  Certificates as  "mortgage
related securities," no representation is made as to the proper characterization
of  the  Certificates  for  legal  investment  purposes,  financial  institution
regulatory purposes,  or other  purposes, or  as to  the ability  of  particular
investors   to   purchase   Certificates  under   applicable   legal  investment
restrictions. The  uncertainties described  above  (and any  unfavorable  future
determinations  concerning legal investment  or financial institution regulatory
characteristics of the Certificates) may  adversely affect the liquidity of  the
Certificates.
 
    All  investors should consult  with their own  legal advisors in determining
whether and to  what extent  the Certificates constitute  legal investments  for
such investors.
 
                                       98
<PAGE>
                              PLAN OF DISTRIBUTION
 
    The  Certificates are being offered hereby in  Series through one or more of
the methods  described  below. The  applicable  Prospectus Supplement  for  each
Series  will describe the method of offering  being utilized for that Series and
will state the public offering or  purchase price of each Class of  Certificates
of  such Series, or the method by which  such price is to be determined, and the
net proceeds to the Seller from such sale.
 
    The Certificates will be offered through the following methods from time  to
time  and offerings  may be  made concurrently  through more  than one  of these
methods or  an offering  of a  particular  Series of  Certificates may  be  made
through a combination of two or more of these methods:
 
       1.  By  negotiated firm commitment underwriting and public re-offering by
           underwriters specified in the applicable Prospectus Supplement;
 
       2.  By placements by the Seller with investors through dealers; and
 
       3.  By direct placements by the Seller with investors.
 
    If underwriters are used  in a sale of  any Certificates, such  Certificates
will  be acquired by  the underwriters for  their own account  and may be resold
from  time  to  time   in  one  or   more  transactions,  including   negotiated
transactions,  at  a fixed  public offering  price  or at  varying prices  to be
determined at the  time of  sale or  at the  time of  commitment therefor.  Firm
commitment  underwriting  and  public  reoffering by  underwriters  may  be done
through underwriting syndicates or through one  or more firms acting alone.  The
specific managing underwriter or underwriters, if any, with respect to the offer
and  sale of a particular Series of Certificates  will be set forth on the cover
of the Prospectus Supplement  applicable to such Series  and the members of  the
underwriting syndicate, if any, will be named in such Prospectus Supplement. The
Prospectus  Supplement will describe any discounts and commissions to be allowed
or paid  by  the  Seller  to the  underwriters,  any  other  items  constituting
underwriting  compensation and  any discounts and  commissions to  be allowed or
paid to the  dealers. The  obligations of the  underwriters will  be subject  to
certain  conditions precedent.  The underwriters with  respect to a  sale of any
Class of Certificates will be obligated to purchase all such Certificates if any
are purchased.  The  Seller, and,  if  specified in  the  applicable  Prospectus
Supplement, Norwest Mortgage, will indemnify the applicable underwriters against
certain civil liabilities, including liabilities under the Securities Act.
 
    The Prospectus Supplement with respect to any Series of Certificates offered
other than through underwriters will contain information regarding the nature of
such  offering and  any agreements  to be  entered into  between the  Seller and
dealers and/or the Seller and purchasers of Certificates of such Series.
 
    Purchasers of Certificates, including dealers,  may, depending on the  facts
and  circumstances of such purchases, be  deemed to be "underwriters" within the
meaning of the Securities Act in connection  with reoffers and sales by them  of
Certificates.  Certificateholders should  consult with  their legal  advisors in
this regard prior to any such reoffer or sale.
 
    If  specified  in  the  Prospectus  Supplement  relating  to  a  Series   of
Certificates,  the Seller or any  affiliate thereof may purchase  some or all of
one or  more Classes  of Certificates  of such  Series from  the underwriter  or
underwriters  at a price  specified or described  in such Prospectus Supplement.
Such purchaser may thereafter from time to time offer and sell, pursuant to this
Prospectus, some or all of such Certificates so purchased directly, through  one
or  more  underwriters to  be designated  at the  time of  the offering  of such
Certificates or through dealers acting as agent and/or principal. Such  offering
may  be restricted in  the matter specified in  such Prospectus Supplement. Such
transactions may be effected at market prices prevailing at the time of sale, at
negotiated prices or at fixed prices. The underwriters and dealers participating
in such purchaser's offering  of such Certificates  may receive compensation  in
the  form of underwriting discounts or  commissions from such purchaser and such
dealers may receive commissions from the investors purchasing such  Certificates
for whom they may
 
                                       99
<PAGE>
act  as agent (which discounts or commissions will not exceed those customary in
those types  of transactions  involved).  Any dealer  that participates  in  the
distribution  of such Certificates  may be deemed to  be an "underwriter" within
the meaning of the Securities Act, and any commissions and discounts received by
such dealer and any  profit on the  resale of such  Certificates by such  dealer
might  be  deemed  to  be  underwriting  discounts  and  commissions  under  the
Securities Act.
 
                                USE OF PROCEEDS
 
    The net proceeds from the sale of  each Series of Certificates will be  used
by  the  Seller  for the  purchase  of  the Mortgage  Loans  represented  by the
Certificates of such Series from Norwest  Mortgage. It is expected that  Norwest
Mortgage will use the proceeds from the sale of the Mortgage Loans to the Seller
for   its  general   business  purposes,  including,   without  limitation,  the
origination or acquisition of new mortgage loans and the repayment of borrowings
incurred to finance the origination or acquisition of mortgage loans,  including
the Mortgage Loans underlying the Certificates of such Series.
 
                                 LEGAL MATTERS
 
    Certain  legal  matters, including  the federal  income tax  consequences to
Certificateholders of an  investment in the  Certificates of a  Series, will  be
passed upon for the Seller by Cadwalader, Wickersham & Taft, New York.
 
                                     RATING
 
    It  is a condition to the issuance of the Certificates of any Series offered
pursuant to this Prospectus  and a Prospectus Supplement  that they be rated  in
one of the four highest categories by at least one Rating Agency.
 
    A  securities rating is not a recommendation to buy, sell or hold securities
and may be subject to revision or withdrawal at any time by the assigning Rating
Agency. Each securities rating  should be evaluated  independently of any  other
rating.
 
                                      100
<PAGE>
                        INDEX OF SIGNIFICANT DEFINITIONS
 
<TABLE>
<CAPTION>
TERM                                                                                                            PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
<S>                                                                                                        <C>
Accrual Certificates.....................................................................................         35
Advances.................................................................................................         46
ALTA.....................................................................................................         25
Balloon Loan.............................................................................................         18
Balloon Period...........................................................................................         18
Bankruptcy Code..........................................................................................         62
Bankruptcy Loss..........................................................................................         36
Beneficial Owner.........................................................................................         32
Book-Entry Certificates..................................................................................         11
Buy-Down Fund............................................................................................         18
Buy-Down Loans...........................................................................................         18
Cede.....................................................................................................         32
CERCLA...................................................................................................         63
Certificate Account......................................................................................         43
Certificateholder........................................................................................         32
Certificates.............................................................................................      cover
Class....................................................................................................      cover
Cleanup Costs............................................................................................         63
Code.....................................................................................................         11
Commission...............................................................................................          2
Correspondents...........................................................................................         20
DCR......................................................................................................         95
Deferred Interest........................................................................................         17
Definitive Certificates..................................................................................         11
Delegated Underwriting...................................................................................         21
Department...............................................................................................         94
Depository...............................................................................................         43
Detailed Information.....................................................................................          2
Disqualified Organization................................................................................         80
Distribution Date........................................................................................         10
DTC......................................................................................................         12
DTC Participants.........................................................................................         32
Due Date.................................................................................................         16
Due on Sale..............................................................................................         64
Eligible Custodial Account...............................................................................         44
ERISA....................................................................................................         11
Excess Bankruptcy Losses.................................................................................         36
Excess Fraud Losses......................................................................................         36
Excess Special Hazard Losses.............................................................................         36
FDIC.....................................................................................................         43
FHLBB....................................................................................................         64
FHLMC....................................................................................................         25
Fitch....................................................................................................         95
Fixed Retained Yield.....................................................................................         35
FNMA.....................................................................................................         25
Fraud Loss...............................................................................................         36
Garn Act.................................................................................................         64
GEMICO...................................................................................................         25
Indirect DTC Participants................................................................................         32
IRA......................................................................................................         93
</TABLE>
 
                                      101
<PAGE>
<TABLE>
<CAPTION>
TERM                                                                                                            PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
Joint Ventures...........................................................................................         20
<S>                                                                                                        <C>
Liquidation Proceeds.....................................................................................         44
Loan Stores..............................................................................................         20
Master Servicer..........................................................................................      cover
Master Servicing Fee.....................................................................................         35
Moody's..................................................................................................         95
Mortgage Loans...........................................................................................      cover
Mortgage Notes...........................................................................................         15
Mortgaged Properties.....................................................................................         15
Mortgages................................................................................................         15
NASCOR...................................................................................................      cover
Net Foreclosure Profits..................................................................................         34
1986 Act.................................................................................................         69
Non-Pro Rata Certificate.................................................................................         70
Non-U.S. Person..........................................................................................         85
Norwest Bank.............................................................................................      cover
Norwest Corporation......................................................................................         19
Norwest Funding..........................................................................................         19
Norwest Mortgage.........................................................................................      cover
Norwest Mortgage Loan....................................................................................         19
Norwest Mortgage Sale Agreement..........................................................................         53
OID Regulations..........................................................................................         69
Other Advances...........................................................................................         46
OTS......................................................................................................         64
Pass-Through Rate........................................................................................          9
Pass-Through Entity......................................................................................         81
Paying Agent.............................................................................................         46
Percentage Interest......................................................................................         33
Periodic Advances........................................................................................         10
PHMC.....................................................................................................         19
PHMC Mortgage Loans......................................................................................         19
Plans....................................................................................................         93
Policy Statement.........................................................................................         98
Pool Distribution Amount.................................................................................         33
Pool Insurers............................................................................................         25
Pooling and Servicing Agreement..........................................................................          8
Prepayment Assumption....................................................................................         71
Program Loans............................................................................................         42
Proposed Mark to Market Regulations......................................................................         83
Proposed OID Regulations.................................................................................         69
PTE 83-1.................................................................................................         96
Qualified Mortgage.......................................................................................         30
Rating Agency............................................................................................         12
Record Date..............................................................................................         10
Regular Certificateholder................................................................................         69
Regular Certificates.....................................................................................         31
Regulations..............................................................................................         94
Relief Act...............................................................................................         63
REMIC....................................................................................................      cover
REMIC Certificates.......................................................................................         67
REMIC Pool...............................................................................................         67
REMIC Regulations........................................................................................         66
</TABLE>
 
                                      102
<PAGE>
<TABLE>
<CAPTION>
TERM                                                                                                            PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
Remittance Date..........................................................................................         44
<S>                                                                                                        <C>
Reserve Fund.............................................................................................         38
Residual Certificates....................................................................................         31
Residual Holders.........................................................................................         76
Restricted Group.........................................................................................         96
Rules....................................................................................................         32
S&P......................................................................................................         95
Securities Act...........................................................................................          2
Seller...................................................................................................      cover
Senior Certificates......................................................................................      cover
Series...................................................................................................      cover
Servicer.................................................................................................      cover
Servicer Custodial Account...............................................................................         43
Servicing Account........................................................................................         47
Servicing Fee............................................................................................         35
Special Hazard Loss......................................................................................         37
Standard Hazard Insurance Policy.........................................................................         49
Startup Day..............................................................................................         67
Stripped Certificateholder...............................................................................         91
Stripped Certificates....................................................................................         90
Subclass.................................................................................................      cover
Subordinated Certificates................................................................................      cover
Subsidy Account..........................................................................................         17
Subsidy Loans............................................................................................         17
Subsidy Payments.........................................................................................         17
Superlien................................................................................................         63
Title V..................................................................................................         65
T.O.P. Loans.............................................................................................         25
Treasury Regulations.....................................................................................         54
Trust Estate.............................................................................................      cover
Trustee..................................................................................................         58
Trustee Fee..............................................................................................         35
U.S. Person..............................................................................................         82
UCC......................................................................................................         61
UGRIC....................................................................................................         25
Underlying Servicing Agreement...........................................................................          8
Underwriter's Exemption..................................................................................         94
Voting Interests.........................................................................................         56
Window Period............................................................................................         65
Window Period Loans......................................................................................         65
Window Period States.....................................................................................         65
</TABLE>
 
                                      103
<PAGE>
- ------------------------------------------------
                                ------------------------------------------------
- ------------------------------------------------
                                ------------------------------------------------
 
    NO  DEALER, SALESMAN  OR ANY  OTHER PERSON HAS  BEEN AUTHORIZED  TO GIVE ANY
INFORMATION OR TO MAKE  ANY REPRESENTATIONS OTHER THAN  THOSE CONTAINED IN  THIS
PROSPECTUS  SUPPLEMENT AND  THE ACCOMPANYING  PROSPECTUS IN  CONNECTION WITH THE
OFFER MADE BY THIS PROSPECTUS  SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS,  AND,
IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS
HAVING  BEEN  AUTHORIZED  BY THE  SELLER  OR  BY THE  UNDERWRITER.  NEITHER THIS
PROSPECTUS SUPPLEMENT NOR  THE ACCOMPANYING PROSPECTUS  CONSTITUTES AN OFFER  TO
SELL  OR THE  SOLICITATION OF  ANY OFFER  TO BUY  ANY SECURITIES  OTHER THAN THE
SECURITIES  DESCRIBED  IN  THIS  PROSPECTUS  SUPPLEMENT  AND  THE   ACCOMPANYING
PROSPECTUS,  NOR DO THEY  CONSTITUTE AN OFFER  TO SELL OR  A SOLICITATION OF ANY
OFFER TO BUY SUCH SECURITIES BY ANYONE  IN ANY JURISDICTION IN WHICH SUCH  OFFER
OR  SOLICITATION IS NOT AUTHORIZED, OR IN  WHICH THE PERSON MAKING SUCH OFFER OR
SOLICITATION IS NOT QUALIFIED TO DO SO, OR TO ANY PERSON TO WHOM IT IS  UNLAWFUL
TO  MAKE SUCH  OFFER OR  SOLICITATION. NEITHER  THE DELIVERY  OF THIS PROSPECTUS
SUPPLEMENT OR THE  ACCOMPANYING PROSPECTUS  NOR ANY SALE  MADE HEREUNDER  SHALL,
UNDER  ANY  CIRCUMSTANCES, CREATE  ANY  IMPLICATION THAT  INFORMATION  HEREIN IS
CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE HEREOF.
                           --------------------------
 
                                     INDEX
 
                             PROSPECTUS SUPPLEMENT
 
<TABLE>
<CAPTION>
                                                   PAGE
                                                 ---------
<S>                                              <C>
Table of Contents..............................        S-5
Summary Information............................        S-7
Risk Factors...................................       S-27
Description of the Certificates................       S-28
Description of Mortgage Loans..................       S-57
Norwest Mortgage Delinquency and Foreclosure
 Experience....................................       S-64
Prepayment and Yield Considerations............       S-68
Pooling and Servicing Agreement................       S-75
Servicing of the Mortgage Loans................       S-78
Federal Income Tax Considerations..............       S-80
ERISA Considerations...........................       S-82
Legal Investment...............................       S-83
Secondary Market...............................       S-83
Underwriting...................................       S-84
Legal Matters..................................       S-84
[Experts.......................................       S-84]
Use of Proceeds................................       S-84
Ratings........................................       S-85
Index of Significant Prospectus Supplement
 Definitions...................................       S-86
 
                        PROSPECTUS
Reports........................................          2
Additional Information.........................          2
Additional Detailed Information................          2
Incorporation of Certain Information by
 Reference.....................................          3
Table of Contents..............................          4
Summary of Prospectus..........................          8
Risk Factors...................................         13
The Trust Estates..............................         15
The Seller.....................................         19
Norwest Mortgage...............................         19
Norwest Bank...................................         20
The Mortgage Loan Programs.....................         20
Mortgage Loan Production Sources...............         20
Description of the Certificates................         30
Prepayment and Yield Considerations............         38
Servicing of the Mortgage Loans................         41
Certain Matters Regarding the Master
 Servicer......................................         52
The Pooling and Servicing Agreement............         53
Certain Legal Aspects of the Mortgage Loans....         59
Certain Federal Income Tax Consequences........         66
ERISA Considerations...........................         93
Legal Investment...............................         97
Plan of Distribution...........................         98
Use of Proceeds................................         99
Legal Matters..................................        100
Rating.........................................        100
Index of Significant Definitions...............        101
</TABLE>
 
                                   $
                                 (APPROXIMATE)
 
                            NORWEST ASSET SECURITIES
                                  CORPORATION
 
                                     SELLER
 
                             MORTGAGE PASS-THROUGH
                           CERTIFICATES, SERIES 199 -
 
                             ---------------------
 
                             PROSPECTUS SUPPLEMENT
                             ---------------------
 
                                 [UNDERWRITER]
 
- ------------------------------------------------
                                ------------------------------------------------
- ------------------------------------------------
                                ------------------------------------------------
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
    The  expenses expected  to be incurred  in connection with  the issuance and
distribution  of  the  securities  being  registered,  other  than  underwriting
compensation,  are  as  set  forth  below.  All  such  expenses  except  for the
registration fees are estimated.
 
   
<TABLE>
<S>                                                              <C>
SEC Registration Fee...........................................  $1,724,138
Legal Fees and Expenses........................................   1,170,000
Accounting Fees and Expenses...................................     288,000
Trustee's Fees and Expenses
 (including counsel fees)......................................     180,000
Printing and Engraving Fees....................................     448,200
Rating Agency Fees.............................................   2,475,000
Miscellaneous..................................................      85,500
                                                                 ----------
    Total......................................................  $6,370,838
                                                                 ----------
                                                                 ----------
</TABLE>
    
 
- ------------------------
*To be provided by amendment.
 
ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
    Section 145 of the Delaware General Corporation Law provides that a Delaware
corporation may indemnify any persons, including officers and directors, who are
made, or  are threatened  to be  made,  parties to  any threatened,  pending  or
completed   legal  action,   suit  or   proceeding,  whether   civil,  criminal,
administrative or investigative (other than an action by or in the right of such
corporation), by reason of  the fact that  such person is or  was an officer  or
director  of  such corporation,  or is  or was  serving at  the request  of such
corporation as a director, officer, employee or agent of another corporation  or
enterprise.  The  indemnity may  include  expenses (including  attorneys' fees),
judgments, fines and amounts paid in settlement actually and reasonably incurred
by such person in connection with such action, suit or proceeding, provided such
officer or director acted in good faith  and in a manner he reasonably  believed
to  be in or not  opposed to the corporation's  best interests and, for criminal
proceedings, had no reasonable cause to believe that his conduct was illegal.  A
Delaware  corporation may indemnify officers and directors in an action by or in
the right  of  the  corporation  under  the  same  conditions,  except  that  no
indemnification  is  permitted  without  judicial  approval  if  the  officer or
director is  adjudged to  be liable  to  the corporation.  Where an  officer  or
director  is successful on the merits or  otherwise in the defense of any action
referred to above, the corporation must indemnify him against the expenses which
such officer or director actually and reasonably incurred.
 
                                      II-1
<PAGE>
    The  By-laws   of  Norwest   Asset   Securities  Corporation   provide   for
indemnification  of officers and  directors to the full  extent permitted by the
Delaware General Corporation Law.
 
    The Pooling and Servicing Agreements for each Series of Certificates provide
either that the Registrant and the partners, directors, officers, employees  and
agents  of  the  Registrant,  or  that the  Master  Servicer  and  the partners,
directors, officers,  employees  and agents  of  the Master  Servicer,  will  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  the Pooling  and Servicing  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 thereunder or by reason of  reckless disregard of his or its  obligations
and duties thereunder.
 
ITEM 16.  EXHIBITS.
 
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                            DESCRIPTION
- -----------  -----------------------------------------------------------------------------------------------
<C>          <S>
        1.1  Form of Underwriting Agreement.
       *3.1  Certificate of Incorporation of Norwest Asset Securities Corporation.
       *3.2  By-laws of Norwest Asset Securities Corporation.
        4.1  Form of Pooling and Servicing Agreement.
        5.1  Opinion of Cadwalader, Wickersham & Taft with respect to certain matters involving the
              Certificates.
        8.1  Opinion of Cadwalader, Wickersham & Taft as to tax matters.
       10.1  Form of Servicing Agreement.
       23.1  Consent of Cadwalader, Wickersham & Taft (included as part of Exhibits 5.1 and 8.1).
       23.2  Consent of Coopers & Lybrand regarding Financial Security Assurance Inc.
      *24.1  Power of Attorney.
       24.2  Power of Attorney (included on page II-5 of this Registration Statement).
</TABLE>
    
 
- ------------------------
   
*Previously filed.
    
 
ITEM 17.  UNDERTAKINGS.
 
    (a) Undertaking pursuant to Rule 415.
 
    The undersigned Registrant hereby undertakes:
 
        (1)  to file, during any period in which offers or sales are being made,
    a post-effective amendment to this Registration Statement:
 
                                      II-2
<PAGE>
           (i) to include  any prospectus  required by Section  10(a)(3) of  the
       Securities Act of 1933;
 
           (ii)  to reflect in the Prospectus  any facts or events arising after
       the effective  date of  the Registration  Statement (or  the most  recent
       post-effective   amendment  thereof)   which,  individually   or  in  the
       aggregate, represent a fundamental change in the information set forth in
       the Registration Statement;
 
          (iii) to include any material information with respect to the plan  of
       distribution  not previously  disclosed in the  Registration Statement or
       any material change to such information in the Registration Statement.
 
        (2) that,  for  the  purpose  of determining  any  liability  under  the
    Securities  Act of 1933, each such  post-effective amendment shall be deemed
    to be  a  new registration  statement  relating to  the  securities  offered
    therein, and the offering of such securities at that time shall be deemed to
    be the initial bona fide offering thereof; and
 
        (3)  to remove from registration by  means of a post-effective amendment
    any  of  the  securities  being  registered  which  remain  unsold  at   the
    termination of the offering.
 
    (b) Undertaking in respect of indemnification.
 
    Insofar  as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to  directors, officers and controlling persons of  the
Registrant  pursuant to the  foregoing provisions, or  otherwise, the Registrant
has been advised that in the  opinion of the Securities and Exchange  Commission
such indemnification is against public policy as expressed in the Securities Act
of  1933  and  is, therefore,  unenforceable.  In  the event  that  a  claim for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
Registrant  of expenses incurred  or paid by a  director, officer or controlling
person of  the Registrant  in the  successful  defense of  any action,  suit  or
proceeding) is asserted by such officer or controlling person in connection with
the  securities being registered, the Registrant  will, unless in the opinion of
its counsel the matter  has been settled by  controlling precedent, submit to  a
court  of appropriate jurisdiction the  question whether such indemnification by
it is against public policy as expressed in the Securities Act of 1933 and  will
be governed by the final adjudication of such issue.
 
                                      II-3
<PAGE>
   
                                   SIGNATURES
    
 
   
    Pursuant  to the requirements of the  Securities Act of 1933, the Registrant
certifies that it has  reasonable grounds to  believe that it  meets all of  the
requirements  for  filing on  Form S-3  and has  duly caused  this Pre-Effective
Amendment No. 1 to Form S-3 Registration Statement to be signed on its behalf by
the undersigned, thereunto  duly authorized,  in the  City of  West Des  Moines,
State of Iowa on May 13, 1996.
    
 
   
                                          By:       /s/ STEPHEN D. MORRISON
                                             -----------------------------------
                                             Name:  Stephen D. Morrison
                                             Title:  President
    
 
                                      II-4
<PAGE>
   
    KNOW  ALL MEN  BY THESE PRESENTS,  that each person  whose signature appears
below constitutes  and  appoints Stephen  D.  Morrison, Alta  Jones  and  Robert
Gorsche,  and each  of them, his  true and lawful  attorneys-in-fact and agents,
with full power of substitution and  resubstitution, for and in his name,  place
and  stead, in any and  all capacities to sign  any or all amendments (including
post-effective amendments) to this Registration  Statement and any or all  other
documents  in  connection therewith,  and to  file the  same, with  all exhibits
thereto, with  the  Securities  and  Exchange  Commission,  granting  unto  said
attorneys-in-fact and agents full power and authority to do and perform each and
every  act  and  thing requisite  and  necessary to  be  done in  and  about the
premises, as fully  to all intents  and purposes as  might or could  be done  in
person,  hereby  ratifying and  confirming all  that said  attorneys-in-fact and
agents, or their substitute or substitutes, may lawfully do or cause to be  done
by virtue hereof.
    
 
   
    PURSUANT   TO  THE  REQUIREMENTS  OF  THE   SECURITIES  ACT  OF  1933,  THIS
PRE-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3 REGISTRATION STATEMENT HAS BEEN SIGNED
BELOW BY THE FOLLOWING PERSONS IN THE CAPACITIES AND ON THE DATES INDICATED.
    
 
   
<TABLE>
<CAPTION>
                         NAME                                           TITLE                         DATE
- ------------------------------------------------------  -------------------------------------  ------------------
 
<C>                                                     <S>                                    <C>
                    /s/ STEPHEN D. MORRISON
     -------------------------------------------        President, Secretary and Director         May 13, 1996
                 Stephen D. Morrison
 
                           /s/ ALTA JONES               Senior Vice President, Chief
     -------------------------------------------         Financial Officer and Chief              May 13, 1996
                      Alta Jones                         Accounting Officer
 
                                     *
     -------------------------------------------        Executive Vice President and Director     May 13, 1996
                      Mark Faris
 
                                     *
     -------------------------------------------        Director                                  May 13, 1996
                    Robert Gorsche
 
*By:        /s/ STEPHEN D. MORRISON
     -------------------------------------------
     Stephen D. Morrison
     ATTORNEY-IN-FACT
</TABLE>
    
 
                                      II-5
<PAGE>
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
 EXHIBIT                                             DESCRIPTION
- ---------  -----------------------------------------------------------------------------------------------
<C>        <S>                                                                                              <C>
     1.1   Form of Underwriting Agreement.
    *3.1   Certificate of Incorporation of Norwest Asset Securities Corporation.
    *3.2   By-laws of Norwest Asset Securities Corporation.
     4.1   Form of Pooling and Servicing Agreement.
     5.1   Opinion of Cadwalader, Wickersham & Taft with respect to certain matters involving the
            Certificates.
     8.1   Opinion of Cadwalader, Wickersham & Taft as to tax matters.
    10.1   Form of Servicing Agreement.
    23.1   Consent of Cadwalader, Wickersham & Taft (included as part of Exhibits 5.1 and 8.1).
    23.2   Consent of Coopers & Lybrand regarding Financial Security Assurance, Inc.
   *24.1   Power of Attorney.
    24.2   Power of Attorney (included on page II-5 of this Registration Statement).
</TABLE>
    
 
- ------------------------
   
*  Previously filed.
    

<PAGE>

                        [FORM OF UNDERWRITING AGREEMENT]

                      NORWEST ASSET SECURITIES CORPORATION
                       Mortgage Pass-Through Certificates

                              (Issuable in Series)

                             UNDERWRITING AGREEMENT

                                                  ______ __, 199_
[Underwriter]

Ladies and Gentlemen:

       Norwest Asset Securities Corporation, a Delaware corporation ("NASCOR"),
proposes to issue and sell from time to time its Mortgage Pass-Through
Certificates in various series, each series of which may be divided into classes
and each class of which may be divided into subclasses, in one or more offerings
on terms determined at the time of sale.  One or more series of Mortgage Pass-
Through Certificates may be offered through you, as underwriter (the
"Underwriter").  Whenever NASCOR determines to make an offering of a series of
its Mortgage Pass-Through Certificates through the Underwriter, NASCOR and
Norwest Mortgage, Inc., a California Corporation ("Norwest Mortgage"), will
enter into an agreement (the "Terms Agreement") with the Underwriter, in
substantially the form attached hereto as Exhibit A, providing for the sale of
such series of Mortgage Pass-Through Certificates to the Underwriter.  NASCOR is
a wholly-owned subsidiary of Norwest Mortgage.  The Mortgage Pass-Through
Certificates of the series, classes and subclasses to be sold in each offering
to the Underwriter under this Underwriting Agreement, as supplemented by the
applicable Terms Agreement, are hereinafter referred to as the "Certificates".
The Certificates will have the characteristics set forth in the applicable Terms
Agreement and will evidence the ownership interests in a trust consisting of
mortgage loans acquired by NASCOR (the "Mortgage Loans") and related property
but excluding the Fixed Retained Yield, if any (collectively, the "Trust
Estate").   The Mortgage Loans will be of the type described in, and will have
the characteristics and aggregate principal balance set forth in, the Prospectus
Supplement (as hereinafter defined).

       The Certificates will be issued under a pooling and servicing agreement
(the "Pooling and Servicing Agreement"), dated as of the close of business on
the date specified in the applicable Terms Agreement, by and among NASCOR, as
depositor, Norwest Bank Minnesota, National Association, a national banking
association ("Norwest Bank"), as master


                                       -1-
<PAGE>

servicer (in such capacity, the "Master Servicer") and the trustee identified in
the applicable Terms Agreement, as trustee (the "Trustee").  The Certificates
will be issued in denominations of $100,000, or such lesser amount as may be
acceptable to NASCOR, and will have the terms set forth in the Prospectus
Supplement.  The Certificates will conform in all material respects to the
description thereof contained in the applicable Terms Agreement and the
Prospectus Supplement.  The Terms Agreement may take the form of an exchange of
any standard form of written communication between the Underwriter, NASCOR and
Norwest Mortgage.  Each offering of Mortgage Pass-Through Certificates under
this Underwriting Agreement will be governed by this Underwriting Agreement, as
supplemented by the applicable Terms Agreement.  This Underwriting Agreement, as
supplemented by the applicable Terms Agreement, is referred to herein as "this
Agreement."

1.     REPRESENTATIONS AND WARRANTIES.  (a)  NASCOR represents and warrants to,
and agrees with, the Underwriter as of the date of the applicable Terms
Agreement that:
               (i)  A registration statement (File No. 33-02209), including a
               prospectus, has been filed with the Securities and Exchange
               Commission (the "Commission") and has become effective under the
               Securities Act of 1933, as amended (the "Act"), and no stop order
               suspending the effectiveness of such registration statement has
               been issued and no proceedings for that purpose have been
               initiated or to NASCOR's knowledge threatened by the Commission;
               and the prospectus in the form in which it will be used in
               connection with the offering of the Certificates is proposed to
               be supplemented by a prospectus supplement relating to the
               Certificates and, as so supplemented, to be filed with the
               Commission pursuant to Rule 424 under the Act.  (Such
               registration statement, as amended to the date of the applicable
               Terms Agreement, excluding for purposes of this Agreement any
               information contained in any Form 8-K filed and incorporated by
               reference therein pursuant to Section 9 hereof or pursuant to any
               other underwriting agreement entered into by NASCOR, is
               hereinafter referred to as the "Registration Statement"; such
               prospectus supplement, as first filed with the Commission, is
               hereinafter referred to as the "Prospectus Supplement"; and such
               prospectus, in the form in which it will first be filed with the
               Commission in connection with the offering of the Certificates,
               as supplemented by the Prospectus Supplement, is hereinafter
               referred to as the "Prospectus"; all references herein to the
               Prospectus or to the Prospectus, as revised, amended, or
               supplemented, shall be deemed to exclude any information
               contained in any Form 8-K filed and incorporated by reference
               therein pursuant to Section 9 hereof or pursuant to any other
               underwriting agreement entered into by NASCOR).

               (ii) The Registration Statement and the Prospectus, as of the
               date of the Prospectus Supplement, will conform, and the
               Registration Statement and the Prospectus, as revised, amended or
               supplemented and filed with the Commission prior to the
               termination of the offering of the Certificates, as of their
               respective effective or issue dates, will conform in all material
               respects to


                                       -2-
<PAGE>

               the requirements of the Act and the rules and regulations of the
               Commission thereunder applicable to such documents as of such
               respective dates, and the Registration Statement and the
               Prospectus, as revised, amended or supplemented and filed with
               the Commission as of the "Closing Date" (as hereinafter defined),
               will conform in all material respects to the requirements of the
               Act and the rules and regulations of the Commission thereunder
               applicable to such documents; and the Registration Statement and
               the Prospectus, as of the date of the Prospectus Supplement, will
               not include any untrue statement of a material fact or will not
               omit to state a material fact required to be stated therein or
               necessary to make the statements therein not misleading and, in
               the case of the Prospectus, as revised, amended or supplemented
               and filed prior to the Closing Date, as of the Closing Date, will
               not include any untrue statement of a material fact or will not
               omit to state a material fact required to be stated therein or
               necessary to make the statements therein not misleading;
               PROVIDED, HOWEVER, that NASCOR makes no representations,
               warranties or agreements (i) as to the information contained in
               or omitted from the Prospectus or any revision or amendment
               thereof or supplement thereto in reliance upon and in conformity
               with information furnished in writing to NASCOR by or on behalf
               of the Underwriter specifically for use in connection with the
               preparation of the Prospectus or any revision or amendment
               thereof or supplement thereto [or (ii) based on the failure by
               the Underwriter to deliver in a timely manner any information
               required to be filed by NASCOR pursuant to Section 9 or as to any
               untrue statement or alleged untrue statement of a material fact
               contained in such information, or an omission or alleged omission
               to state therein a material fact required to be stated therein or
               necessary to make the statements therein, when considered in
               conjunction with the Prospectus, and in the light of the
               circumstances under which they were made, not misleading, except
               to the extent that such misstatements are the result of
               inaccurate information with respect to the Mortgage Loans
               supplied by NASCOR which was not corrected by information
               subsequently supplied by NASCOR to the Underwriter at any time
               prior to the earlier of (i) the written confirmation of a sale of
               the Certificates, which sale results in the loss, claim, damage
               or liability arising out of or based upon such misstatement, and
               (ii) the 90th day following the filing of the Prospectus, as
               amended or supplemented, with the Commission].

               (iii)     Assuming that certain of the Certificates are rated at
               the time of issuance in one of the two highest rating categories
               by a nationally recognized statistical rating organization, each
               such Certificate at such time will be a "mortgage related
               security" as such term is defined in Section 3(a)(41) of the
               Securities Exchange Act of 1934, as amended (the "Exchange Act").


               (iv)      Each of the Certificates will conform in all material
               respects to the description thereof contained in the Prospectus,
               and each of the Certificates, when validly authenticated, issued
               and delivered in accordance with the Pooling and Servicing
               Agreement, will be duly and validly issued and outstanding and


                                       -3-
<PAGE>

               entitled to the benefits of the Pooling and Servicing Agreement,
               and immediately prior to the delivery of the Certificates to the
               Underwriter, NASCOR will own the Certificates, and upon such
               delivery the Underwriter will acquire title thereto, free and
               clear of any lien, pledge, encumbrance or other security interest
               other than one created or granted by the Underwriter or permitted
               by the Pooling and Servicing Agreement.

               (v)  This Agreement has been duly authorized, executed and
               delivered by NASCOR and, as of the Closing Date, the Pooling and
               Servicing Agreement will have been duly authorized, executed and
               delivered by NASCOR and will conform in all material respects to
               the description thereof contained in the Prospectus and, assuming
               the valid execution thereof by the Trustee and Norwest Bank, the
               Pooling and Servicing Agreement will constitute a valid and
               binding agreement of NASCOR enforceable in accordance with its
               terms, except as the same may be limited by bankruptcy,
               insolvency, reorganization or other laws relating to or affecting
               the enforcement of creditors' rights and by general equity
               principles.

               (vi) NASCOR has been duly incorporated and is validly existing as
               a corporation in good standing under the laws of the State of
               Delaware with corporate power and authority to own its properties
               and conduct its business as described in the Prospectus and to
               enter into and perform its obligations under the Pooling and
               Servicing Agreement and this Agreement.

               (vii)     Neither the issuance or delivery of the Certificates,
               nor the consummation of any other of the transactions
               contemplated herein, nor compliance with the provisions of the
               Pooling and Servicing Agreement or this Agreement, will conflict
               with or result in the breach of any material term or provision of
               the certificate of incorporation or bylaws of NASCOR, and NASCOR
               is not in breach or violation of or in default (nor has an event
               occurred which with notice or lapse of time or both would
               constitute a default) under the terms of (i) any indenture,
               contract, lease, mortgage, deed of trust, note agreement or other
               evidence of indebtedness or other agreement, obligation or
               instrument to which NASCOR is a party or by which it or its
               properties are bound, or (ii) any law, decree, order, rule or
               regulation applicable to NASCOR of any court or supervisory,
               regulatory, administrative or governmental agency, body or
               authority, or arbitrator having jurisdiction over NASCOR, or its
               properties, the default in or the breach or violation of which
               would have a material adverse effect on NASCOR or the ability of
               NASCOR to perform its obligations under the Pooling and Servicing
               Agreement; and neither the delivery of the Certificates, nor the
               consummation of any other of the transactions contemplated
               herein, nor the compliance with the provisions of the Pooling and
               Servicing Agreement or this Agreement will result in such a
               breach, violation or default which would have such a material
               adverse effect.


                                       -4-
<PAGE>

               (viii)    No filing or registration with, notice to, or consent,
               approval, authorization or order or other action of, any court or
               governmental authority or agency is required for the consummation
               by NASCOR of the transactions contemplated by this Agreement or
               the Pooling and Servicing Agreement (other than as required under
               state securities laws or Blue Sky laws, as to which no
               representations and warranties are made by NASCOR), except such
               as have been, or will have been prior to the Closing Date,
               obtained under the Act, and such recordations of the assignment
               of the Mortgage Loans to the Trustee pursuant to the Pooling and
               Servicing Agreement that have not yet been completed.

               (ix) There is no action, suit or proceeding before or by any
               court, administrative or governmental agency, or other tribunal,
               domestic or foreign, now pending to which NASCOR is a party, or
               to the best of NASCOR's knowledge threatened against NASCOR,
               which could reasonably result individually or in the aggregate in
               any material adverse change in the condition (financial or
               otherwise), earnings, affairs, regulatory situation or business
               prospects of NASCOR or could reasonably interfere with or
               materially and adversely affect the consummation of the
               transactions contemplated herein.

               (x)  At the Closing Date the representations and warranties made
               by NASCOR in the Pooling and Servicing Agreement will be true and
               correct in all material respects as of the date made.

               (xi) At the time of execution and delivery of the Pooling and
               Servicing Agreement, NASCOR will own the mortgage notes (the
               "Mortgage Notes") being transferred to the Trust Estate pursuant
               thereto, free and clear of any lien, mortgage, pledge, charge,
               encumbrance, adverse claim or other security interest
               (collectively, "Liens"), except to the extent permitted in the
               Pooling and Servicing Agreement, and will not have assigned to
               any person other than the Trust Estate any of its right, title or
               interest, exclusive of the Fixed Retained Yield, if any, in the
               Mortgage Notes.  NASCOR will have the power and authority to
               transfer the Mortgage Notes to the Trust Estate and to transfer
               the Certificates to the Underwriter, and, upon execution and
               delivery to the Trustee of the Pooling and Servicing Agreement,
               payment by the Underwriter for the Certificates, and delivery to
               the Underwriter of the Certificates, the Trust Estate will own
               the Mortgage Notes (exclusive of the Fixed Retained Yield, if
               any) and the Underwriter will acquire title to the Certificates,
               in each case free of Liens except to the extent permitted by the
               Pooling and Servicing Agreement.

               (xii)     Any taxes, fees and other governmental charges in
               connection with the execution, delivery and issuance of this
               Agreement, the Pooling and Servicing Agreement and the
               Certificates have been or will be paid by NASCOR at or prior to
               the Closing Date, except for fees for recording


                                       -5-
<PAGE>

               assignments of mortgage loans to the Trustee pursuant to the
               Pooling and Servicing Agreement that have not yet been completed,
               which fees will be paid by NASCOR in accordance with the Pooling
               and Servicing Agreement.

               (xiii)    The transfer of the Mortgage Loans and the related
               assets to the Trust Estate at the Closing Date will be treated by
               NASCOR for financial accounting and reporting purposes as a sale
               of assets and not as a pledge of assets to secure debt.

(b)    Norwest Mortgage, Inc. ("Norwest Mortgage") represents and warrants to,
and agrees with, the Underwriter as of the date of the applicable Terms
Agreement that:

                    (i)  Norwest Mortgage has been duly incorporated and is
               validly existing as a corporation in good standing under the laws
               of the State of California with corporate power and authority to
               own its properties and conduct its business as described in the
               Prospectus and to enter into and perform its obligations under
               this Agreement.

                    (ii) The execution and delivery by Norwest Mortgage of this
               Agreement are within the corporate power of Norwest Mortgage and
               have been duly authorized by all necessary corporate action on
               the part of Norwest Mortgage.

                    (iii)     Neither the execution and delivery of this
               Agreement, nor the consummation by Norwest Mortgage of any other
               of the transactions contemplated herein, nor compliance with the
               provisions of this Agreement, will conflict with or result in the
               breach of any material term or provision of the certificate of
               incorporation or bylaws of Norwest Mortgage.

                    (iv) This Agreement has been duly authorized, executed and
               delivered by Norwest Mortgage.

2.     PURCHASE PRICE.  The purchase price at which the Underwriter will
purchase the Certificates shall be the aggregate purchase price set forth in the
applicable Terms Agreement.

3.     DELIVERY AND PAYMENT.  The Certificates shall be delivered at the
office, on the date and at the time specified in the applicable Terms Agreement,
which place, date and time may be changed by agreement between the Underwriter
and NASCOR (such date and time of delivery of and payment for the Certificates
being hereinafter referred to as the "Closing Date").  Delivery of the
Certificates shall be made to the Underwriter against payment by the Underwriter
of the purchase price therefor to or upon the order of NASCOR in same-day funds.
The Certificates shall be registered in such names and in such denominations as
the Underwriter may have requested not less than two full business days prior to
the Closing Date.  NASCOR agrees to have the Certificates available for
inspection,


                                       -6-
<PAGE>

checking and packaging in New York, New York, on the business day prior to the
Closing Date.

4.     OFFERING BY UNDERWRITER.  It is understood that the Underwriter proposes
to offer the Certificates for sale as set forth in the Prospectus and that the
Underwriter will not offer, sell or otherwise distribute the Certificates
(except for the sale thereof in exempt transactions) in any state in which the
Certificates are not exempt from registration under state securities laws or
Blue Sky laws (except where the Certificates will have been qualified for
offering and sale at the direction of the Underwriter under such state
securities laws or Blue Sky laws).  In connection with such offering(s), the
Underwriter agrees to provide NASCOR with information related to the offer and
sale of the Certificates that is reasonably requested by NASCOR, from time to
time (but not in excess of one year from the Closing Date), and necessary for
complying with its tax reporting obligations, including, without limitation, the
issue price of the Certificates.

       [The Underwriter agrees that it shall not distribute any written
materials to any potential investor in the Certificates prior to the time that a
final Prospectus and Prospectus Supplement are delivered to such potential
investor, other than any written materials which do not constitute a prospectus
within the meaning of Section 2(10) of the Act or which are permitted by any
rule or regulation promulgated under the Act to be delivered prior to a final
prospectus; including, but not limited to, Rules 134 and 139 under the Act.]

       The Underwriter further agrees that it will not sell or transfer any
Certificate or interest therein in the initial sale or transfer of such
Certificate by the Underwriter in an amount less than the minimum denomination
for such Certificate to be set forth in the Prospectus Supplement.

       5.   AGREEMENTS.  NASCOR agrees with the Underwriter that:

(a)    NASCOR will cause the Prospectus to be filed with the Commission
pursuant to Rule 424 under the Act and, if necessary, within 15 days of the
Closing Date, will file a report on Form 8-K setting forth specific information
concerning the Certificates [(but will not include any information required to
be filed under Section 9)], and will promptly advise the Underwriter when the
Prospectus has been so filed, and, prior to the termination of the offering of
the Certificates, will also promptly advise the Underwriter (i) when any
amendment to the Registration Statement has become effective or any revision of
or supplement to the Prospectus has been so filed (unless such amendment,
revision or supplement does not relate to the Certificates), (ii) of any request
by the Commission for any amendment of the Registration Statement or the
Prospectus or for any additional information (unless such request does not
relate to the Certificates), and (iii) of the issuance by the Commission of any
stop order suspending the effectiveness of the Registration Statement or the
institution or, to the knowledge of NASCOR, the threatening of any proceeding
for that purpose (unless such stop order or proceeding does not relate to the
Certificates).  NASCOR will use its best efforts to prevent the issuance of any
such stop order and, if issued, to obtain as soon as possible the withdrawal
thereof.  Except as otherwise provided in Section 5(b)


                                       -7-
<PAGE>

hereof, NASCOR will not file prior to the termination of such offering any
amendment to the Registration Statement or any revision of or supplement to the
Prospectus (other than any such amendment, revision or supplement which does not
relate to the Certificates) which shall be disapproved by the Underwriter after
reasonable notice and review of such filing.

       (b)  If, at any time when a prospectus relating to the Certificates is
required to be delivered under the Act (i) any event occurs as a result of which
the Prospectus as then amended or supplemented would include any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements therein in the light of the circumstances under which they were
made not misleading, or (ii) it shall be necessary to revise, amend or
supplement the Prospectus to comply with the Act or the rules and regulations of
the Commission thereunder, NASCOR promptly will notify the Underwriter and will,
upon request of the Underwriter, or may, after consultation with the
Underwriter, prepare and file with the Commission a revision, amendment or
supplement which will correct such statement or omission or effect such
compliance, and furnish without charge to the Underwriter as many copies as the
Underwriter may from time to time reasonably request of an amended Prospectus or
a supplement to the Prospectus which will correct such statement or omission or
effect such compliance.

       (c)  NASCOR will (i) furnish to the Underwriter and counsel for the
Underwriter, without charge, conformed copies of the Registration Statement
(including exhibits thereto) and, so long as delivery of a prospectus relating
to the Certificates is required under the Act, as many copies of the Prospectus
and any revisions or amendments thereof or supplements thereto as may be
reasonably requested, and (ii) file promptly all reports and any definitive
proxy or information statements required to be filed by NASCOR with the
Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act (as
such requirements may be modified pursuant to Section 12(h) of the Exchange Act)
subsequent to the date of the Prospectus and for so long as the delivery of a
prospectus is required in connection with the offering or sale of the
Certificates.

       (d)  NASCOR will, as between itself and the Underwriter, pay all
expenses incidental to the performance of its obligations under this Agreement
including, without limitation, (i) expenses of preparing, printing and
reproducing the Registration Statement, the Prospectus, the Pooling and
Servicing Agreement and the Certificates, (ii) the cost of delivering the
Certificates to the Underwriter, insured to the satisfaction of the Underwriter,
(iii) the fees charged by securities rating services for rating the
Certificates, (iv) the fees and expenses of the Trustee and any agent of the
Trustee and the fees and disbursements of counsel for the Trustee in connection
with the Pooling and Servicing Agreement and the Certificates, and (v) all other
costs and expenses incidental to the performance by NASCOR of NASCOR's
obligations hereunder which are not otherwise specifically provided for in this
subsection.  It is understood that, except as provided in this paragraph (d) and
in Sections 7 and 12 hereof, the Underwriter will pay all of its own expenses,
including (i) the fees of any counsel to the Underwriter, (ii) any transfer
taxes on resale of any of the Certificates by it, (iii) any advertising expenses
connected with any offers that the Underwriter may make and (iv) any expenses
for the qualification of the Certificates under state securities laws or Blue
Sky laws,


                                       -8-
<PAGE>

including filing fees and the fees and disbursements of counsel for the
Underwriter in connection therewith and in connection with the preparation of
any Blue Sky survey [and (v) any expenses incurred in connection with the
preparation of any Computational Materials, Structural Term Sheets and
Collateral Term Sheets (each as defined in Section 9) and the filing of such
materials with the Commission].

       (e)  So long as any Certificates are outstanding, upon the request of
the Underwriter, NASCOR will, or will cause the Master Servicer to, furnish to
the Underwriter, as soon as available, a copy of (i) the annual statement of
compliance delivered by the Master Servicer to the Trustee under the Pooling and
Servicing Agreement, (ii) the annual independent public accountants' servicing
report furnished to the Trustee pursuant to the Pooling and Servicing Agreement,
(iii) each report of NASCOR regarding the Certificates filed with the Commission
under the Exchange Act or mailed to the holders of the Certificates, and (iv)
from time to time, such other information concerning the Certificates which may
be furnished by NASCOR or the Master Servicer without undue expense and without
violation of applicable law.

       6.   CONDITIONS TO THE OBLIGATION OF THE UNDERWRITER.  The obligation of
the Underwriter to purchase the Certificates shall be subject to the accuracy in
all material respects of the representations and warranties on the part of
NASCOR and Norwest Mortgage contained herein as of the date of the applicable
Terms Agreement and as of the Closing Date, to the accuracy of the statements of
NASCOR and Norwest Mortgage made in any officer's certificate pursuant to the
provisions hereof, to the performance in all material respects by NASCOR of its
obligations hereunder and to the following additional conditions:

       (a)  No stop order suspending the effectiveness of the Registration
Statement with respect to the Certificates shall have been issued and no
proceedings for that purpose shall have been instituted and be pending or shall
have been threatened, and the Prospectus shall have been filed or mailed for
filing with the Commission not later than required pursuant to the rules and
regulations of the Commission.


       (b) NASCOR shall have furnished to the Underwriter a certificate, dated
the Closing Date, of NASCOR, signed by a vice president of NASCOR, to the effect
that the signer of such certificate has carefully examined the Registration
Statement, the Prospectus and this Agreement and that:

                    (i)  The representations and warranties of NASCOR herein are
               true and correct in all material respects on and as of the
               Closing Date with the same effect as if made on the Closing Date,
               and NASCOR has complied with all agreements and satisfied all the
               conditions on its part to be performed or satisfied at or prior
               to the Closing Date;

                    (ii) No stop order suspending the effectiveness of the
               Registration Statement with respect to the Certificates has been
               issued, and no proceedings for that purpose have been instituted
               and are pending or, to his knowledge, have been threatened as of
               the Closing Date; and


                                       -9-
<PAGE>

                    (iii)     Nothing has come to the attention of such person
               that would lead him or her to believe that the Prospectus
               contains any untrue statement of a material fact or omits to
               state any material fact necessary in order to make the statements
               therein, in the light of the circumstances under which they were
               made, not misleading.

            (c)  NASCOR shall have caused Norwest Mortgage to furnish to the
Underwriter a certificate, dated the Closing Date, of Norwest Mortgage, signed
by a vice president or an assistant vice president of Norwest Mortgage, to the
effect that the representations and warranties of Norwest Mortgage herein are
true and correct in all material respects on and as of the Closing Date with the
same effect as if made on the Closing Date, and Norwest Mortgage has in all
material respects complied with all agreements and satisfied all the conditions
on its part to be performed or satisfied at or prior to the Closing Date.

            (d)  NASCOR shall have furnished to the Underwriter an opinion,
dated the Closing Date, of Cadwalader, Wickersham & Taft, counsel to NASCOR, to
the effect that:

                    (i)  NASCOR is a corporation validly existing as a
               corporation in good standing under the laws of the State of
               Delaware;

                    (ii) The Certificates have been duly authorized and executed
               and, assuming authentication and delivery in the manner
               contemplated in the Pooling and Servicing Agreement, are validly
               issued and outstanding and entitled to the benefits provided by
               the Pooling and Servicing Agreement and this Agreement, and upon
               delivery by NASCOR of the Certificates to the Underwriter and
               payment by the Underwriter of the purchase price therefor in the
               manner contemplated by this Agreement, the Underwriter will
               acquire the Certificates free and clear of any lien, pledge,
               encumbrance or other security interest other than one created or
               granted by the Underwriter or permitted by the Pooling and
               Servicing Agreement;

                    (iii)     Assuming that the Certificates are rated at the
               time of issuance in one of the two highest rating categories by a
               nationally recognized statistical rating organization, each such
               Certificate at such time will be a "mortgage related security" as
               such term is defined in Section 3(a)(41) of the Exchange Act;

                    (iv)      The Pooling and Servicing Agreement has been duly
               authorized, executed and delivered by NASCOR and, assuming valid
               execution and delivery thereof by Norwest Bank and the Trustee,
               constitutes a valid and legally binding agreement of NASCOR,
               enforceable against NASCOR in accordance with its terms, subject
               to bankruptcy, insolvency, reorganization or other laws of
               general applicability relating to or affecting creditors' rights
               generally and to general equity principles, regardless of whether
               such enforcement is considered in a proceeding at law or in
               equity;


                                      -10-
<PAGE>

                    (v)       The Pooling and Servicing Agreement is not
               required to be qualified under the Trust Indenture Act of 1939,
               as amended, and the Trust Estate (as defined in the Pooling and
               Servicing Agreement) is not required to be registered under the
               Investment Company Act of 1940, as amended;

                    (vi)      The Registration Statement has become effective
               under the Act, and, to the best of the knowledge of such counsel,
               (x) no stop order suspending the effectiveness of the
               Registration Statement with respect to the Certificates has been
               issued and no proceedings for that purpose have been instituted
               or are pending or have been threatened under the Act; (y) the
               Registration Statement and the Prospectus, as of the date of the
               Prospectus Supplement, and each revision or amendment thereof or
               supplement thereto relating to the Certificates, as of its
               effective or issue date, appeared on their respective faces to be
               appropriately responsive in all material respects to the
               requirements of the Act and the rules and regulations of the
               Commission thereunder applicable to such documents as of such
               respective dates; and (z) the Prospectus, as revised, amended or
               supplemented as of the Closing Date, will conform in all material
               respects to the requirements of the Act and the rules and
               regulations of the Commission thereunder applicable to such
               documents as to be used as of the Closing Date; in the course of
               such counsel's review of the Registration Statement and the
               Prospectus and discussion of the same with certain officers of
               NASCOR and its accountants, no facts came to the attention of
               such counsel that caused such counsel to believe that the
               Registration Statement or the Prospectus, as of the date of the
               Prospectus Supplement, or any revision or amendment thereof or
               supplement thereto, as of its effective or issue date, contained
               any untrue statement of a material fact or omitted to state a
               material fact required to be stated therein or necessary to make
               the statements therein, in the light of the circumstances under
               which they were made, not misleading, or that the Prospectus, or
               any revision or amendment thereof or supplement thereto filed
               prior to the date of such opinion, as of the date of such
               opinion, contained any untrue statement of a material fact or
               omitted to state a material fact necessary to make the statements
               therein, in the light of the circumstances under which they were
               made, not misleading; the descriptions in the Registration
               Statement and the Prospectus, as of the date of such opinion, of
               the Certificates and the Pooling and Servicing Agreement and such
               descriptions, as of the date of the Prospectus Supplement, of the
               aspects of certain statutes as set forth in the Prospectus under
               the headings "ERISA Considerations" and "Certain Federal Income
               Tax Consequences" were, to the extent that they constitute
               matters of law or legal conclusions, accurate; and such counsel
               does not know of any contracts or documents relating to NASCOR of
               a character required to be described in or to be filed as
               exhibits to the Registration Statement, as of the date of the
               Prospectus Supplement, which were not described and filed as
               required; it being understood that such counsel need express no
               opinion as to the financial statements or other financial,
               numerical or statistical data contained


                                      -11-
<PAGE>

               in the Registration Statement or the Prospectus or any material
               incorporated by reference in the Registration Statement or the
               Prospectus;

                    (vii)     This Underwriting Agreement and the applicable
               Terms Agreement have been duly authorized, executed and delivered
               by NASCOR;

                    (viii)    No consent, approval, authorization or order of
               any State of New York or federal governmental agency or body or,
               to the knowledge of such counsel, any State of New York or
               federal court is required for the consummation by NASCOR of the
               transactions contemplated by the terms of this Agreement or the
               Pooling and Servicing Agreement except such as may be required
               under the Blue Sky laws of any jurisdiction in connection with
               the offering, sale or acquisition of the Certificates, any
               recordations of the assignment of the mortgage loans to the
               Trustee pursuant to the Pooling and Servicing Agreement that have
               not yet been completed and such other approvals as have been
               obtained;

                    (ix)      The sale of the Certificates to the Underwriter
               pursuant to this Agreement and the consummation of any of the
               transactions contemplated by the terms of the Pooling and
               Servicing Agreement or this Agreement do not conflict with or
               result in a breach or violation of any material term or provision
               of, or constitute a default under, the certificate of
               incorporation or bylaws of NASCOR, or, to the knowledge of such
               counsel, without independent investigation, any indenture or
               other agreement or instrument to which NASCOR is a party or by
               which it is bound, or any State of New York or federal statute or
               regulation applicable to NASCOR or, to the knowledge of such
               counsel, without independent investigation, an order of any State
               of New York or federal court, regulatory body, administrative
               agency or governmental body having jurisdiction over NASCOR; and

                    (x)       To the knowledge of such counsel, without
               independent investigation, after due inquiry, there are no legal
               or governmental actions, investigations or proceedings pending to
               which NASCOR is a party, or threatened against NASCOR, (A)
               asserting the invalidity of this Agreement, the Pooling and
               Servicing Agreement or the Certificates, (B) seeking to prevent
               the issuance of the Certificates or the consummation of any of
               the transactions contemplated by this Agreement, (C) which might
               materially and adversely affect the performance by NASCOR of its
               obligations under, or the validity or enforceability of, this
               Agreement, the Pooling and Servicing Agreement or the
               Certificates or (D) seeking to affect adversely the federal
               income tax attributes of the Certificates as described in the
               Prospectus under the heading "Certain Federal Income Tax
               Consequences."  For purposes of the foregoing, such counsel may
               state that it has not regarded any legal or governmental actions,
               investigations or proceedings to be "threatened" unless the
               potential litigant or


                                      -12-
<PAGE>

               governmental authority has manifested to NASCOR a present
               intention to initiate such proceedings.

               Such opinion may express its reliance as to factual matters on
the representations and warranties made by, and on certificates or other
documents furnished by officers of, the parties to this Agreement and the
Pooling and Servicing Agreement.  Such opinion may assume the due authorization,
execution and delivery of the instruments and documents referred to therein by
the parties thereto other than NASCOR.  Such opinion may be qualified as an
opinion only on the laws of the State of New York, the laws of each state in
which the writer of the opinion is admitted to practice law and the federal law
of the United States.  To the extent that such firm relies upon the opinion of
other counsel in rendering any portion of its opinion, the opinion of such other
counsel shall be attached to and delivered with the opinion of such firm that is
delivered to the Underwriter.

                 (e)  Norwest Bank shall have furnished to the Underwriter an
opinion, dated the Closing Date, of counsel to Norwest Bank (who may be an
employee of Norwest Bank), to the effect that:

                    (i)       Norwest Bank is a national banking association
               duly [chartered] and validly existing in good standing under the
               laws of the United States;

                    (ii)      The Pooling and Servicing Agreement has been duly
               authorized, executed and delivered by Norwest Bank and, assuming
               valid execution and delivery thereof by NASCOR and the Trustee,
               the Pooling and Servicing Agreement constitutes a valid and
               legally binding agreement of Norwest Bank, enforceable against
               Norwest Bank in accordance with its terms, subject to bankruptcy,
               insolvency, reorganization or other laws of general applicability
               relating to or affecting creditors' rights generally and to
               general equity principles regardless of whether such enforcement
               is considered in a proceeding at law or in equity;

                    (iii)     No consent, approval, authorization or order of
               any [state] or federal court or governmental agency or body is
               required for the consummation by Norwest Bank of the transactions
               contemplated by the Pooling and Servicing Agreement except any
               such as may be required under the Blue Sky laws of any
               jurisdiction in connection with the offering, sale or acquisition
               of the Certificates, any recordations of the assignment of the
               mortgage loans evidenced by the Certificates to the Trustee
               pursuant to the Pooling and Servicing Agreement that have not yet
               been completed and any approvals as have been obtained;

                    (iv)      The consummation by Norwest Bank of any of the
               transactions contemplated by the terms of the Pooling and
               Servicing Agreement does not, to the knowledge of such counsel,
               conflict with or result in a breach or violation of any material
               term or provision of, or constitute a default under, the charter
               or bylaws of Norwest Bank, any indenture or other agreement or
               instrument to


                                      -13-
<PAGE>

               which Norwest Bank is a party or by which it is bound, any state
               or federal statute or regulation applicable to Norwest Bank or,
               to the knowledge of such counsel, any order of any state or
               federal court, regulatory body, administrative agency or
               governmental body having jurisdiction over Norwest Bank; and

                    (v)       To the best knowledge of such counsel after due
               inquiry, there are no legal or governmental actions,
               investigations or proceedings pending to which Norwest Bank is a
               party, or threatened against Norwest Bank, (A) asserting the
               invalidity of the Pooling and Servicing Agreement or (B) which
               might materially and adversely affect the performance by Norwest
               Bank of its obligations under, or the validity or enforceability
               of, the Pooling and Servicing Agreement.  For purposes of the
               foregoing, such counsel may state that it has not regarded any
               legal or governmental actions, investigations or proceedings to
               be "threatened" unless the potential litigant or governmental
               authority has manifested to the legal department of Norwest Bank
               or to an employee of Norwest Bank responsible for servicing a
               present intention to initiate such proceedings.

               Such opinion may express its reliance as to factual matters on
the representations and warranties made by, and on certificates or other
documents furnished by officers of, the parties to the Pooling and Servicing
Agreement.  Such opinion may assume the due authorization, execution and
delivery of the instruments and documents referred to therein by the parties
thereto other than Norwest Bank.  Such opinion may be qualified as an opinion
only on the laws of the State of Minnesota and the federal law of the United
States and, with respect to the opinions set forth in paragraph (e)(ii) above,
the laws of the State of New York.  To the extent that such counsel relies upon
the opinion of other counsel in rendering any portion of its opinion, the
opinion of such other counsel shall be attached to and delivered with the
opinion of such counsel that is delivered to the Underwriter.

               (f)    The Underwriter shall have received from counsel for the
Underwriter such opinion or opinions, dated the Closing Date, with respect to
the issuance and sale of the Certificates, the Registration Statement and the
Prospectus, and such other related matters as the Underwriter may reasonably
require.

               (g)    NASCOR's independent accountants, _________________,
shall have furnished to the Underwriter a letter dated as of or prior to the
date of first use of the Prospectus Supplement in the form and reflecting the
performance of the procedures previously agreed to by NASCOR and the
Underwriter.

               (h)    Subsequent to the date hereof, there shall not have
occurred any change, or any development involving a prospective change, in or
affecting the business or properties of NASCOR which the Underwriter concludes,
in the reasonable judgment of the Underwriter, materially impairs the investment
quality of the Certificates so as to make it impractical or inadvisable to
proceed with the public offering or the delivery of the Certificates as
contemplated by the Prospectus.


                                      -14-
<PAGE>

               (i)     The Certificates shall be rated not lower than the
required ratings set forth in the applicable Terms Agreement, such ratings shall
not have been rescinded and no public announcement shall have been made that
either rating of the Certificates has been placed under review (otherwise than
for possible upgrading).

               (j)     You shall have received an opinion of special counsel to
NASCOR, dated the Closing Date, in form and substance satisfactory to you, with
respect to certain state tax consequences under the tax laws of the jurisdiction
in which the Trustee is located relating to the Trust Estate and the holders of
the Certificates.

               (k)     You shall have received copies of any opinions of counsel
to NASCOR supplied to the rating organizations relating to certain matters with
respect to the Certificates.  Any such opinions shall be dated the Closing Date
and addressed to you or accompanied by reliance letters to you or shall state
that you may rely upon them.

               (l)     NASCOR shall have furnished to the Underwriter such
further information, certificates and documents as the Underwriter may
reasonably have requested, and all proceedings in connection with the
transactions contemplated by this Agreement and all documents incident hereto
shall be in all material respects reasonably satisfactory in form and substance
to the Underwriter and its counsel.

               If any of the conditions specified in this Section 6 shall not
have been fulfilled in all material respects when and as provided in this
Agreement, this Agreement and all obligations of the Underwriter hereunder may
be canceled at, or at any time prior to, the Closing Date by the Underwriter.
Notice of such cancellation shall be given to NASCOR in writing, or by telephone
or telegraph confirmed in writing.

               7.      INDEMNIFICATION AND CONTRIBUTION.  (a) NASCOR agrees to
indemnify and hold harmless the Underwriter and each person who controls the
Underwriter within the meaning of either the Act or the Exchange Act against any
and all losses, claims, damages or liabilities, joint or several, to which they
may become subject under the Act, the Exchange Act, or other federal or state
statutory law or regulation, at common law or otherwise, insofar as such losses,
claims, damages or liabilities (or actions in respect thereof) arise out of or
are based upon any untrue statement or alleged untrue statement of a material
fact contained in the Registration Statement or in the Prospectus, or in any
revision or amendment thereof or supplement thereto, or arise out of or are
based upon the omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein, in
the light of the circumstances under which they were made, not misleading and
agrees to reimburse each such indemnified party for any legal or other expenses
reasonably incurred by it or him in connection with investigating or defending
any such loss, claim, damage, liability or action; provided, however, that
NASCOR will not be liable in any such case to the extent that any such loss,
claim, damage or liability arises out of or is based upon [(A)] any such untrue
statement or alleged untrue statement or omission or alleged omission made
therein in reliance upon and in conformity with written information furnished to
NASCOR by or on behalf of the Underwriter specifically for use in connection
with the


                                      -15-
<PAGE>

preparation thereof[ or (B) any untrue statement or alleged untrue statement of
a material fact contained in any information delivered by the Underwriter to
NASCOR pursuant to Section 9(e), or arise out of or are based upon the omission
or alleged omission to state therein a material fact required to be stated
therein or necessary to make the statements therein, when considered in
conjunction with the Prospectus, and in the light of the circumstances under
which they were made, not misleading, except to the extent that such
misstatements are the result of inaccurate information with respect to the
Mortgage Loans supplied by NASCOR which was not corrected by information
subsequently supplied by NASCOR to the Underwriter at any time prior to the
earlier of (i) the written confirmation of a sale of the Certificates, which
sale results in the loss, claim, damage or liability arising out of or based
upon such misstatement, and (ii) the 90th day following the filing of the
Prospectus, as amended or supplemented, with the Commission]; provided, further,
that NASCOR shall not be liable to the Underwriter and each person who controls
the Underwriter with respect to any Prospectus or any Prospectus Supplement to
the extent that any loss, claim, damage or liability results from the fact that
the Certificates were offered or sold to a person to whom there was not
delivered, at or prior to the written confirmation of such sale, a copy of the
Prospectus or of the Prospectus as then revised, amended or supplemented in any
case where such delivery is required by the Act or the Exchange Act, if NASCOR
has previously furnished copies thereof to the Underwriter.  This indemnity
agreement will be in addition to any liability which NASCOR may otherwise have.

               (b)     The Underwriter agrees to indemnify and hold harmless
NASCOR, its officers who signed the Registration Statement or any amendment
thereof, its directors, and each person who controls NASCOR within the meaning
of either the Act or the Exchange Act, and Norwest Mortgage, and each person who
controls Norwest Mortgage within the meaning of either the Act or the Exchange
Act, [(i)] to the same extent as the foregoing indemnities from NASCOR to the
Underwriter, but only to the extent that such untrue statement or alleged untrue
statement or omission or alleged omission was made in reliance upon and in
conformity with written information furnished to NASCOR by or on behalf of the
Underwriter specifically for use in connection with the preparation of the
Prospectus or any revision or amendment thereof or supplement thereto [or (ii)
insofar as such losses, claims, damages or liabilities (or actions in respect
thereof) are based on, result from or arise out of any untrue statement or
alleged untrue statement of a material fact contained in any information
delivered by the Underwriter to NASCOR pursuant to Section 9(e), or arise out of
or are based upon the omission or alleged omission to state in such information
a material fact required to be stated therein or necessary to make the
statements therein, when considered in conjunction with the Prospectus, and in
the light of the circumstances under which they were made, not misleading;
except to the extent that such misstatements are the result of inaccurate
information with respect to the Mortgage Loans supplied by NASCOR to the
Underwriter which was not corrected by information subsequently supplied by
NASCOR to the Underwriter at any time prior to the earlier of (A) the written
confirmation of a sale of the Certificates, which sale results in the loss,
claim, damage or liability arising out of or based upon such misstatement, and
(B) the 90th day following the filing of the Prospectus, as amended or
supplemented, with the Commission].  This indemnity agreement will be in
addition to any liability which the Underwriter may otherwise have.


                                      -16-
<PAGE>

               (c)     Promptly after receipt by an indemnified party under this
Section 7 of notice of the commencement of any action, such indemnified party
shall, if a claim in respect thereof is to be made against the indemnifying
party under this Section 7, notify the indemnifying party in writing of the
commencement thereof; but the omission so to notify the indemnifying party will
not relieve the indemnifying party from any liability which it may have to any
indemnified party otherwise than under this Section 7.  In case any such action
is brought against any indemnified party and it notifies the indemnifying party
of the commencement thereof, the indemnifying party shall be entitled to
participate therein, and to the extent that it may elect by written notice
delivered to the indemnified party promptly after receiving the aforesaid notice
from such indemnified party, to assume the defense thereof, with counsel
satisfactory to such indemnified party (who shall not, except with the consent
of the indemnified party, be counsel to the indemnifying party), and after
receipt of notice from the indemnifying party to such indemnified party of its
election so to assume the defense thereof, the indemnifying party will not be
liable to such indemnified party under this Section 7 for any legal or other
expenses subsequently incurred by such indemnified party in connection with the
defense thereof other than reasonable costs of investigation by the indemnified
party undertaken with notice to and approval by the indemnifying party.

               (d)     If the indemnification provided for in this Section 7 is
unavailable or insufficient to hold harmless an indemnified party under
subsection (a) or (b) above, then each indemnifying party shall contribute to
the amount paid or payable by such indemnified party as a result of the losses,
claims, damages or liabilities referred to [(A)] in subsection (a) or (b)[(i)]
above in such proportion as is appropriate to reflect both (i) the relative
benefits received by NASCOR on the one hand and the Underwriter on the other
from the offering of the Certificates and (ii) the relative fault of NASCOR on
the one hand and the Underwriter on the other in connection with the statements
or omissions which resulted in such losses, claims, damages or liabilities as
well as any other relevant equitable considerations [and (B) in subsection
(b)(ii) above, in such proportion as is appropriate to reflect the relative
fault of the Underwriter on the one hand and NASCOR on the other in connection
with the actions, statements or omissions that resulted in such losses, claims,
damages or liabilities].  The relative benefits received by NASCOR on the one
hand and the Underwriter on the other shall be deemed to be in the same
proportion as the total net proceeds from the offering (before deducting
expenses) received by NASCOR bear to the difference between (i) the total price
at which the Certificates underwritten by the Underwriter and distributed to the
public were offered to the public, and (ii) the portion of the total net
proceeds from the offering (before deducting expenses) received by NASCOR
attributable to the Certificates.  The relative fault [for the purposes of
clauses (A) and (B) above] shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact related to information
supplied by NASCOR or the Underwriter and the parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
untrue statement or omission.  NASCOR, Norwest Mortgage and the Underwriter
agree that it would not be just and equitable if contribution pursuant to this
subsection (d) were determined by pro rata allocation or by any other method of
allocation which does not take account of the equitable considerations referred
to above in this subsection (d).  The amount paid by an indemnified party as a
result of the losses, claims, damages or


                                      -17-
<PAGE>

liabilities referred to in the first sentence of this subsection (d) shall be
deemed to include any legal or other expenses reasonably incurred by such
indemnified party in connection with investigating or defending any action or
claim which is the subject of this subsection (d).  Notwithstanding the
provisions of this subsection (d), and with respect to losses, claims, damages
or liabilities referred to in subsection (a) or (b) above, the Underwriter shall
not be required to contribute any amount in excess of the amount by which the
total price at which the Certificates underwritten by it and distributed to the
public were offered to the public exceeds the amount of any damages which the
Underwriter has otherwise been required to pay by reason of such untrue or
alleged untrue statement or omission or alleged omission.  No person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation.

               (e)     The obligations of NASCOR under this Section 7 shall be
in addition to any liability which NASCOR may otherwise have and shall extend,
upon the same terms and conditions, to each person, if any, who controls the
Underwriter within the meaning of the Act; and the obligations of the
Underwriter under this Section 7 shall be in addition to any liability which the
Underwriter may otherwise have and shall extend, upon the same terms and
conditions, to (i) the officers of NASCOR who signed the Registration Statement
or any amendment thereof, to its directors, and to each person who controls
NASCOR within the meaning of either the Act or the Exchange Act and (ii) each
person who controls Norwest Mortgage within the meaning of either the Act or the
Exchange Act.

               8.      OBLIGATIONS OF NORWEST MORTGAGE. Norwest Mortgage agrees
with the Underwriter, for the sole and exclusive benefit of the Underwriter and
each person who controls the Underwriter within the meaning of either the Act or
the Exchange Act and not for the benefit of any assignee thereof or any other
person or persons dealing with the Underwriter, in consideration of and as an
inducement to its agreement to purchase the Certificates from NASCOR, to
indemnify and hold harmless the Underwriter against any failure by NASCOR to
perform its obligations to the Underwriter pursuant to Section 7 hereof;
provided, however, that the aggregate liability of Norwest Mortgage for the
foregoing indemnity shall not exceed an amount equal to the aggregate principal
amount of the Certificates.

               [9.     FILING OF INVESTOR INFORMATION.  (a)  NASCOR agrees to
file with the Commission current reports on Form 8-K under the Exchange Act in
accordance with paragraph (c) below, containing the Computational Materials,
Structural Term Sheets and Collateral Term Sheets described in paragraph (b)
below, provided by the Underwriter to NASCOR in accordance with paragraph (e)
below and subject, in the case of Computational Materials and Structural Term
Sheets, to the conditions precedent set forth in paragraph (d) below for the
purpose of permitting the Underwriter to comply as to the Certificates with the
No-Action Letter of May 20, 1994 issued by the Commission to Kidder, Peabody
Acceptance Corporation I, Kidder, Peabody & Co. Incorporated and Kidder
Structured Asset Corporation and the No-Action Letter of May 27, 1994 issued by
the Commission to the Public Securities



                                      -18-
<PAGE>

Association (collectively, the "Kidder/PSA Letter") and the No-Action Letter of
February 17, 1995 issued by the Commission to the Public Securities Association
(the "PSA Letter").

               (b)(i)  For purposes of Section 9(a), Computational Materials
shall mean any information with respect to the Certificates which constitutes
"Computational Materials", as defined in the Kidder/PSA Letter, excluding (i)
complex multi-scenario vector analyses, (ii) option-adjusted spreads and (iii)
option-adjusted durations, prepared by the Underwriter and delivered to
investors, which information may be aggregated and filed in consolidated form to
the extent described in the Kidder/PSA Letter, and that meets the criteria set
forth in Section 9(b)(ii).

               For purposes of Section 9(a), Structural Term Sheets and
Collateral Term Sheets shall mean any information with respect to the
Certificates which constitutes "Structural Term Sheets" and "Collateral Term
Sheets" as defined in the PSA Letter and that, with respect to Structural Term
Sheets meets the criteria set forth in Section 9(b)(ii).

               (ii)    For purposes of Section 9(a), Computational Materials and
Structural Term Sheets are those that:

               (A)     are generated based on assumptions regarding the payment
priorities and characteristics of a class or subclass of Certificates that will
be actually issued and purchased by the Underwriter; and

               (B)     are provided to prospective investors under the following
conditions prior to the time of filing of the Prospectus pursuant to Rule 424(b)
under the Act:

               (x)     in the case of each prospective investor that has orally
indicated to the Underwriter that it will purchase all or a portion of a class
or subclass of Certificates to which such Computational Materials or Structural
Term Sheets, as the case may be, relate, the Computational Materials or
Structural Term Sheets, as the case may be, relating to such class or subclass
that are sent to such prospective investor; and

               (y)     for any prospective investor, all Computational Materials
or Structural Term Sheets, as the case may be, that are sent to such prospective
investor after the structure for the entire issue of Certificates is finalized.

               Computational Materials and Structural Term Sheets required to be
filed with the Commission will not include materials relating to abandoned
structures or materials that are furnished to prospective investors prior to the
time that the structure of the entire issue of Certificates is finalized where
such investors have not indicated to the Underwriter their intention to purchase
the Certificates described in such materials.

               (c)(i)  Subject to the timely receipt pursuant to Section 9(e)(i)
of the Computational Materials and Structural Term Sheets to be filed and the
satisfaction of the condition precedent set forth in paragraph (d), NASCOR
agrees and covenants to file the


                                      -19-
<PAGE>

Computational Materials and Structural Term Sheets delivered to it by the
Underwriter not later than the filing of the Prospectus pursuant to Rule 424
under the Act.

               (ii)    Subject to the timely receipt pursuant to Section
9(e)(ii) of the Collateral Term Sheets to be filed, NASCOR agrees and covenants
to file the Collateral Term Sheets delivered to it by the Underwriter within two
business days of delivery.

               (iii)   NASCOR agrees to file any information delivered to NASCOR
for filing pursuant to Section (9)(e)(v) (A) or (C) on the business day
following the receipt of the accountant's letter pursuant to Section 9(d) with
respect to such information.

               (iv)    NASCOR agrees to file any Collateral Term Sheet delivered
to NASCOR for filing pursuant to Section 9(e)(v)(B) within two business days
following the receipt of such Collateral Term Sheet.

               (d)(i)  It shall be a condition precedent to NASCOR's obligation
to file Computational Materials and Structural Term Sheets pursuant to this
Section 9, that NASCOR shall have received a letter not later than 5:00 P.M. on
the business day prior to such filing from NASCOR's independent accountants,
_______________, reflecting the performance of procedures previously agreed to
by NASCOR and otherwise in form and substance satisfactory to NASCOR with
respect to the structural, financial, numerical or statistical information to be
filed.  NASCOR agrees to cooperate with the accountants to facilitate the
obtaining of such letter but nothing contained herein shall be construed as a
representation by NASCOR that it will cause the accountants to provide such
letter or shall require NASCOR to accept a letter in substance unsatisfactory to
it. Such letter will be obtained at the sole expense of the Underwriter. The
Underwriter acknowledges and agrees that NASCOR is not able to obtain such
letter with respect to (i) complex multi-scenario vector analyses, (ii) option-
adjusted spreads and (iii) option-adjusted durations, and accordingly, the
Underwriter agrees it will not disseminate any such information in written form
to an investor prior to its delivery of a final Prospectus to such investor.

               (ii)    The Underwriter agrees to cooperate with the accountants
and agrees to furnish revised Computational Materials or Structural Term Sheets,
if necessary, in order for the accountants to provide such letter.

               (iii)   NASCOR intends, but is not obligated, to obtain a letter
from ______________ regarding the information set forth in any Collateral Term
Sheets filed or to be filed pursuant to Section 9(a).  Any such letter will be
at the expense of the Underwriter.  If the accountants are unable to deliver
such letter because of inaccuracies in the Collateral Term Sheets, the
provisions of Section 9(e)(v)(B) shall apply.

               (e)     (i)The Underwriter agrees and covenants to deliver to
NASCOR no later than four business days before the delivery of the final
Prospectus to the Underwriter copies of all Computational Materials and
Structural Term Sheets that are required under the Kidder/PSA Letter or the PSA
Letter, as the case may be, to be filed with the Commission.


                                      -20-
<PAGE>

               (ii)    The Underwriter agrees and covenants to deliver to NASCOR
any Collateral Term Sheets that are required under the PSA Letter to be filed
with the Commission simultaneously with the delivery of such Collateral Term
Sheets to an investor.


               (iii)   The Underwriter represents and warrants to NASCOR that
the Computational Materials, Structural Term Sheets and Collateral Term Sheets
to be furnished to NASCOR by the Underwriter for filing with the Commission
pursuant to Section 9(c)(i) or (ii) will constitute all Computational Materials
(either in original, aggregated or consolidated form), Structural Term Sheets
and Collateral Term Sheets with respect to the Certificates that (i) were
furnished to prospective investors by the Underwriter in connection with its
offer and sale of the Certificates and (ii) are required to be filed with the
Commission in order to secure the relief granted under the Kidder/PSA Letter or
the PSA Letter, as the case may be.

               (iv)    The Underwriter represents and warrants to, and covenants
with, NASCOR that any information filed by NASCOR with the Commission pursuant
to this Section 9 as of the date of filing will not include any untrue
statements of a material fact and, when considered in conjunction with the
Prospectus, will not omit to state any material facts required to be stated
therein or necessary to make the statements contained therein, in light of the
circumstances under which they were made, not misleading; provided, however,
that the Underwriter makes no representation with respect to the accuracy of the
Prospectus exclusive of any information filed with the Commission pursuant to
this Section 9 and any other written information furnished to NASCOR by or on
behalf of the Underwriter specifically for use in connection with the Prospectus
and, provided further, that the Underwriter makes no representation to the
extent such misstatements are the result of inaccurate information with respect
to the Mortgage Loans supplied by NASCOR which was not corrected by information
subsequently supplied by NASCOR to the Underwriter prior to the earlier of (A)
the written confirmation of a sale of the Certificates which sale results in a
loss, claim, damage or liability arising out of or based upon such misstatement,
and (B) the 90th day following the filing of the Prospectus, as amended or
supplemented, with the Commission.

               (v)     The Underwriter covenants with NASCOR that:

               (A)   if a filing was made with the Commission with respect to
a structure which was considered final with respect to any class or subclass
of Certificates, and such structure is subsequently revised, the Underwriter 
shall prepare and deliver to NASCOR for filing with the Commission, pursuant 
to Section 9(c)(ii), revised Computational Materials and Structural Term 
Sheets based on such revised structure; and

               (B)   in the event that NASCOR determines that any information
contained in a Collateral Term Sheet is inaccurate, the Underwriter shall
prepare and deliver to any investor that received the inaccurate Collateral Term
Sheet and to NASCOR for filing with the Commission pursuant to Section 9(c)(iv),
a revised Collateral Term Sheet.

               (C)   if any Computational Materials or Structural Term Sheets
filed with the Commission are determined by the Underwriter or NASCOR, at any
time prior to the 90th day following the filing of the Prospectus, as amended or
supplemented, with the Commission, to


                                      -21-
<PAGE>

contain any information that is inaccurate or misleading, and NASCOR determines
that as a result such Computational Materials or Structural Term Sheets include
an untrue statement of a material fact or, when considered in conjunction with
the Prospectus, will omit to state any material fact required to be stated
therein or necessary to make the statements contained therein, in light of the
circumstances under which they were made, not misleading, the Underwriter shall
prepare and deliver to NASCOR for filing with the Commission pursuant to Section
9(c)(iii), corrected Computational Materials or Structural Term Sheets, as the
case may be; provided, however, that if such information is inaccurate or
misleading solely because it is based on inaccurate information with respect to
the Mortgage Loans supplied by NASCOR to the Underwriter, the Underwriter shall
be under no obligation to prepare and deliver to NASCOR corrected Computational
Materials or Structural Term Sheets, as the case may be, unless and until
corrected information is supplied by NASCOR to the Underwriter and such
corrected information is supplied by NASCOR to the Underwriter at any time prior
to the 90th day following the filing of the Prospectus, as amended or
supplemented, with the Commission.

               (vi)    The Underwriter covenants with NASCOR that any
Computational Materials, Structural Term Sheets or Collateral Term Sheets
delivered to prospective investors shall contain the following legend:

               "THIS INFORMATION IS FURNISHED TO YOU SOLELY BY [UNDERWRITER] AND
               NOT BY THE ISSUER OF THE SECURITIES OR ANY OF ITS AFFILIATES.
               [UNDERWRITER] IS ACTING AS UNDERWRITER AND NOT ACTING AS AGENT
               FOR THE ISSUER OR ITS AFFILIATES IN CONNECTION WITH THE PROPOSED
               TRANSACTION."

or shall contain the legend mutually agreed upon between the Underwriter and
NASCOR as set forth in Exhibit A hereto.

               In addition, the Underwriter covenants with NASCOR that any
Collateral Term Sheets delivered to prospective investors shall contain the
additional legend:


               "THE INFORMATION CONTAINED HEREIN WILL BE SUPERSEDED BY THE
               DESCRIPTION OF THE MORTGAGE LOANS CONTAINED IN THE PROSPECTUS
               SUPPLEMENT."

and, except for the initial Collateral Term Sheet sent to an investor,

               "SUCH INFORMATION SUPERSEDES THE
               INFORMATION IN ALL PRIOR COLLATERAL TERM
               SHEETS."

               (f)     Notwithstanding any other provision herein, the
Underwriter and NASCOR each agree to pay all costs and expenses of the other
party including, without limitation, legal fees and expenses, incurred in
connection with any successful action by the


                                      -22-
<PAGE>

Underwriter or NASCOR against the other party to enforce any of its rights set
forth in this Section 9.

               (g)     The Underwriter covenants with NASCOR that it will make
available to NASCOR such personnel as are familiar with the Underwriter's
compliance procedures for the purpose of answering questions concerning the
Underwriter's practices and procedures for the preparation and dissemination of
written materials concerning the Certificates to prospective investors prior to
the delivery of the final Prospectus to such investors.

               (h)     The Underwriter covenants with NASCOR that after the
final Prospectus is available the Underwriter shall not distribute any written
information concerning the Certificates to a prospective investor unless such
information is preceded or accompanied by the final Prospectus.]

               10.     TERMINATION.  Subsequent to the execution of the
applicable Terms Agreement, this Agreement shall be subject to termination in
the absolute discretion of the Underwriter, by notice given to NASCOR prior to
delivery of and payment for the Certificates, if prior to such time (i) trading
in securities generally on the New York Stock Exchange shall have been suspended
or materially limited or any setting of minimum prices for trading on such
exchange shall have been instituted, (ii) a general moratorium on commercial
banking activities in the State of New York shall have been declared by either
federal or New York State authorities, or (iii) there shall have occurred any
material outbreak or escalation of hostilities or other calamity or crisis the
effect of which on the financial markets of the United States is such as to make
it, in the reasonable judgment of the Underwriter, impracticable or inadvisable
to market the Certificates on the terms and in the manner contemplated by the
Prospectus as amended or supplemented.  In addition, following receipt of notice
from NASCOR that the Mortgage Loans will not conform to the specifications set
forth in the applicable Terms Agreement, if, in the reasonable judgment of the
Underwriter, such disparity would have a material adverse effect on the
marketing and sale of the Certificates, the Underwriter may terminate this
Agreement not later than the close of business on the first Business Day after
receipt of such notice or, if earlier, the Closing Date.

               11.     REPRESENTATIONS AND INDEMNITIES TO SURVIVE.  The
respective agreements, representations, warranties, indemnities and other
statements of NASCOR, Norwest Mortgage and their respective officers and of the
Underwriter set forth in or made pursuant to this Agreement will remain in full
force and effect, regardless of any investigation made by or on behalf of the
Underwriter, NASCOR, Norwest Mortgage or any of the officers, directors or
controlling persons referred to in Section 7 hereof, and will survive delivery
of and payment for the Certificates.  The provisions of Section 5(d), Section 7,
Section 8 and Section 11 hereof shall survive the termination or cancellation of
this Agreement.

               12.     REIMBURSEMENT OF UNDERWRITER'S EXPENSES.  If for any
reason, other than default by the Underwriter in its obligation to purchase the
Certificates, the material breach by the Underwriter of any of its covenants in
Section 9 hereof (without the fault of NASCOR) or termination by the Underwriter
pursuant to Section 10 hereof, the Certificates


                                      -23-
<PAGE>

are not delivered by or on behalf of NASCOR as provided herein, NASCOR will
reimburse the Underwriter for all out-of-pocket expenses of the Underwriter,
including reasonable fees and disbursements of its counsel, reasonably incurred
by the Underwriter in making preparations for the purchase, sale and delivery of
the Certificates, but NASCOR and Norwest Mortgage shall then be under no further
liability to the Underwriter with respect to the Certificates except as provided
in Section 5(d), Section 7 and Section 8 hereof.  If the Certificates are not
delivered by or on behalf of NASCOR as provided herein because of the default by
the Underwriter in its obligation to purchase the Certificates, the material
breach by the Underwriter of any of its covenants in Section 9 hereof (without
the fault of NASCOR) [or termination by the Underwriter pursuant to Section 10
hereof], the Underwriter will reimburse the NASCOR for all out-of-pocket
expenses of the NASCOR, including reasonable fees and disbursements of its
counsel, reasonably incurred by the NASCOR in making preparations for the
issuance and delivery of the Certificates[, but the Underwriter shall then be
under no further liability to the NASCOR with respect to the Certificates except
as provided in Section 7 hereof.]

               13.     SUCCESSORS.  This Agreement will inure to the benefit of
and be binding upon the parties hereto and their respective successors and the
officers, directors and controlling persons referred to in Section 7 hereof and
their respective successors and assigns, and no other person will have any right
or obligation hereunder.

               14.     APPLICABLE LAW.  THIS AGREEMENT WILL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

               15.     FINAL STRUCTURE DUE DATE.  The Underwriter agrees to
submit to NASCOR not later than 9:00 a.m. New York City Time on the Final
Structure Due Date specified in the applicable Terms Agreement its determination
of the final structure relating to, among other items, the class designations,
approximate principal amounts and payment priorities of the Certificates.
Changes to such final structure may be made by the Underwriter after the Final
Structure Due Date if the changes are of a non-material nature.  The
determination as to whether such changes are non-material shall be in the sole
discretion of NASCOR.  In addition, on or before the Final Structure Due Date
the Underwriter may elect an extension thereof for an additional one or two
business days beyond the original Final Structure Due Date if the Underwriter
notifies NASCOR of its election not later than 9:00 a.m. New York City Time on
such original Final Structure Due Date and the Underwriter pays to NASCOR, on or
prior to the Closing Date, an extension fee of $100,000 for each day the Final
Structure Due Date is extended as reimbursement for NASCOR's costs and expenses
arising from such extension.

               16.     MISCELLANEOUS.  Time shall be of the essence of this
Agreement.  This Agreement supersedes all prior or contemporaneous agreements
and understandings relating to the subject matter hereof.  Neither this
Agreement nor any term hereof may be changed, waived, discharged or terminated
except by a writing signed by the party against whom enforcement of such change,
waiver, discharge or termination is sought.  This Agreement may


                                      -24-
<PAGE>

be signed in any number of counterparts, each of which shall be deemed an
original, which taken together shall constitute one and the same instrument.

               17.     NOTICES.  All communications hereunder will be in writing
and effective only on receipt and, if sent to the Underwriter, will be delivered
to [Underwriter], [Street, City, State, Zip], Attn: ___________________, or if
sent to NASCOR, will be delivered to NASCOR at [Street, City, State, Zip]; or if
sent to Norwest Mortgage, will be delivered to Norwest Mortgage at 405 Southwest
5th Street, Des Moines, Iowa 50328.
                                    *   *   *













                                      -25-
<PAGE>

               If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the undersigned a counterpart hereof,
whereupon this letter and your acceptance shall represent a binding agreement by
and among NASCOR, Norwest Mortgage and the Underwriter.


                              Very truly yours,

                              NORWEST ASSET SECURITIES CORPORATION
                              By:  ______________________________
                              Name:
                              Title:

                              NORWEST MORTGAGE, INC.
                              By:  ______________________________
                              Name:
                              Title:

The foregoing Underwriting
Agreement is hereby
confirmed and accepted as of
the date first above written.

[UNDERWRITER]

By:  ___________________________
   Name:
   Title:









                                      -26-
<PAGE>

                                    Exhibit A

                      NORWEST ASSET SECURITIES CORPORATION.
                       Mortgage Pass-Through Certificates

                                 Terms Agreement

[Underwriter]                                            __________,199__
[Address]

Underwriting Agreement dated _______, 199_.

Title of Certificates:             Mortgage Pass-Through Certificates, Series
                                   199_-_, [Classes] (the "Offered
                                   Certificates").
Subclasses of Certificates         Each of the Class A Certificates and the
                                   Class B Certificates will consist of one or
                                   more Subclasses with the prior consent of
                                   NASCOR, which consent shall not be reasonably
                                   withheld.  The Class AP and Class M
                                   Certificates will not be divided into
                                   subclasses

Aggregate Principal Amount of the:
Offered Certificates               $__________  (Approximate)

Certificates Not Offered Hereby:   [Classes]

Subordination                      "Shifting interest" structure.

Minimum Denominations of Offered
Certificates:                      $100,000 initial principal balance and
                                   integral multiples of $1,000 in excess
                                   thereof.

Description of the Mortgage Loans: Fixed interest rate, conventional, monthly
                                   pay, fully amortizing, one- to four-family,
                                   residential first mortgage loans having
                                   original stated terms to maturity of
                                   approximately [   ] years.

Subordination:                     "Shifting interest" structure.

REMIC Election:                    Yes.


<PAGE>

Cut-Off Date:                      _______ 1, 199_

Final Structure Due Date:          _______ __, 199_

Distributions:                     Distributions will be made monthly on the
                                   25th day of each month or the next succeeding
                                   Business Day (the "Distribution Date").

Servicing Fee:
  (Monthly fee payable to
   each Servicer):                 [    ]% to [    ] % per annum.

Master Servicing Fee
  (Monthly fee payable to
  the Master Servicer):            [    ]% per annum.

Fixed Retained Yield:              [Yes][No].

Trustee:

Book-Entry Registration:           Settlement in "same-day" funds, to the extent
                                   practicable.  Any REMIC residual, floating
                                   rate, stripped and Class M Certificates will
                                   not be issued in book-entry form, unless
                                   authorized by NASCOR.

Optional Termination:              [    ].

Required Ratings:                  [Ratings]

Closing Date, Location and Time:   _______ __, 199_; offices of Cadwalader,
                                   Wickersham & Taft, New York, New York; 10:00
                                   a.m. New York City Time.

Purchase Price for the Certificates:    [        ]% of the initial aggregate
                                        principal amount of the Offered
                                        Certificates plus accrued interest
                                        thereon.

Date of Pooling and Servicing Agreement:       The Closing Date.


<PAGE>


                    [FORM OF POOLING AND SERVICING AGREEMENT]



        _________________________________________________________________



                      NORWEST ASSET SECURITIES CORPORATION

                                    (Seller)

                                       and

                   NORWEST BANK MINNESOTA NATIONAL ASSOCIATION

                                (Master Servicer)

                                       and

                                    [TRUSTEE]

                                    (Trustee)

                         POOLING AND SERVICING AGREEMENT

                         Dated as of ____________, 199_

                                        $

                       Mortgage Pass-Through Certificates

                                 Series 199_-__
        _________________________________________________________________



                                        
<PAGE>

                                TABLE OF CONTENTS
                                                                        Page
                                                                        ----
ARTICLE I      DEFINITIONS . . . . . . . . . . . . . . . . . . . . .    I-1
Section 1.01.  Definitions . . . . . . . . . . . . . . . . . . . . .    I-1

Accepted Master Servicing Practices. . . . . . . . . . . . . . . . .    I-1
Adjusted Pool Amount . . . . . . . . . . . . . . . . . . . . . . . .    I-1
Adjusted Pool Amount (Class AP Portion). . . . . . . . . . . . . . .    I-1
Adjusted Principal Balance . . . . . . . . . . . . . . . . . . . . .    I-2
Adjustment Amount. . . . . . . . . . . . . . . . . . . . . . . . . .    I-2
Aggregate Current Bankruptcy Losses. . . . . . . . . . . . . . . . .    I-2
Aggregate Current Fraud Losses . . . . . . . . . . . . . . . . . . .    I-2
Aggregate Current Special Hazard Losses. . . . . . . . . . . . . . .    I-2
Aggregate Foreclosure Profits. . . . . . . . . . . . . . . . . . . .    I-2
Agreement      . . . . . . . . . . . . . . . . . . . . . . . . . . .    I-2
Amount Held for Future Distribution. . . . . . . . . . . . . . . . .    I-2
Authenticating Agent . . . . . . . . . . . . . . . . . . . . . . . .    I-3
Bankruptcy Code. . . . . . . . . . . . . . . . . . . . . . . . . . .    I-3
Bankruptcy Loss. . . . . . . . . . . . . . . . . . . . . . . . . . .    I-3
Bankruptcy Loss Amount . . . . . . . . . . . . . . . . . . . . . . .    I-3
Beneficial Owner . . . . . . . . . . . . . . . . . . . . . . . . . .    I-3
Book-Entry Certificate . . . . . . . . . . . . . . . . . . . . . . .    I-3
Business Day   . . . . . . . . . . . . . . . . . . . . . . . . . . .    I-4
Certificate    . . . . . . . . . . . . . . . . . . . . . . . . . . .    I-4
Certificate Account. . . . . . . . . . . . . . . . . . . . . . . . .    I-4
Certificate Register and Certificate Registrar . . . . . . . . . . .    I-4
Certificateholder or Holder. . . . . . . . . . . . . . . . . . . . .    I-4
Class          . . . . . . . . . . . . . . . . . . . . . . . . . . .    I-4
Class A Certificate. . . . . . . . . . . . . . . . . . . . . . . . .    I-4
Class A Certificateholder. . . . . . . . . . . . . . . . . . . . . .    I-4
Class A Distribution Amount. . . . . . . . . . . . . . . . . . . . .    I-4
Class A Fixed Pass-Through Rate. . . . . . . . . . . . . . . . . . .    I-4
Class A Interest Accrual Amount. . . . . . . . . . . . . . . . . . .    I-4
Class A Optimal Amount . . . . . . . . . . . . . . . . . . . . . . .    I-5
Class A Optimal Principal Amount . . . . . . . . . . . . . . . . . .    I-5
Class A Percentage . . . . . . . . . . . . . . . . . . . . . . . . .    I-6
Class A Prepayment Percentage. . . . . . . . . . . . . . . . . . . .    I-6
Class A Principal Balance. . . . . . . . . . . . . . . . . . . . . .    I-7
Class A Principal Distribution Amount. . . . . . . . . . . . . . . .    I-7
Class A Subclass . . . . . . . . . . . . . . . . . . . . . . . . . .    I-7
Class A Subclass Distribution Amount . . . . . . . . . . . . . . . .    I-7


                                        
<PAGE>


Class A Subclass Interest Accrual Amount . . . . . . . . . . . . . .    I-7
Class A Subclass Interest Percentage . . . . . . . . . . . . . . . .    I-8
Class A Subclass Interest Shortfall Amount . . . . . . . . . . . . .    I-8
Class A Subclass Loss Percentage . . . . . . . . . . . . . . . . . .    I-8
Class A Subclass Pass-Through Rate . . . . . . . . . . . . . . . . .    I-8
Class A Subclass Principal Balance . . . . . . . . . . . . . . . . .    I-8
Class A Subclass Shortfall Percentage. . . . . . . . . . . . . . . .    I-9
Class A Subclass Unpaid Interest Shortfall . . . . . . . . . . . . .    I-9
Class A Unpaid Interest Shortfall. . . . . . . . . . . . . . . . . .    I-9
Class A Voting Interest. . . . . . . . . . . . . . . . . . . . . . .    I-9
Class A-1 Certificate. . . . . . . . . . . . . . . . . . . . . . . .    I-9
Class A-1 Certificateholder. . . . . . . . . . . . . . . . . . . . .    I-9
Class A-2 Certificate. . . . . . . . . . . . . . . . . . . . . . . .    I-9
Class A-2 Certificateholder. . . . . . . . . . . . . . . . . . . . .    I-9
Class A-3 Certificate. . . . . . . . . . . . . . . . . . . . . . . .    I-9
Class A-3 Certificateholder. . . . . . . . . . . . . . . . . . . . .    I-9
Class A-4 Certificate. . . . . . . . . . . . . . . . . . . . . . . .    I-9
Class A-4 Certificateholder. . . . . . . . . . . . . . . . . . . . .    I-9
Class A-5 Certificate. . . . . . . . . . . . . . . . . . . . . . . .    I-9
Class A-5 Certificateholder. . . . . . . . . . . . . . . . . . . . .    I-9
Class A-R Certificate. . . . . . . . . . . . . . . . . . . . . . . .   I-10
Class A-R Certificateholder. . . . . . . . . . . . . . . . . . . . .   I-10
Class AP Certificate . . . . . . . . . . . . . . . . . . . . . . . .   I-10
Class AP Certificateholder . . . . . . . . . . . . . . . . . . . . .   I-10
Class AP Deferred Amount . . . . . . . . . . . . . . . . . . . . . .   I-10
Class AP Distribution Amount . . . . . . . . . . . . . . . . . . . .   I-10
Class AP Fraction. . . . . . . . . . . . . . . . . . . . . . . . . .   I-10
Class AP Optimal Principal Amount. . . . . . . . . . . . . . . . . .   I-10
Class AP Principal Balance . . . . . . . . . . . . . . . . . . . . .   I-11
Class B Certificate. . . . . . . . . . . . . . . . . . . . . . . . .   I-12
Class B Certificateholder. . . . . . . . . . . . . . . . . . . . . .   I-12
Class B Interest Accrual Amount. . . . . . . . . . . . . . . . . . .   I-12
Class B Pass-Through Rate. . . . . . . . . . . . . . . . . . . . . .   I-12
Class B Principal Balance. . . . . . . . . . . . . . . . . . . . . .   I-12
Class B Subclass . . . . . . . . . . . . . . . . . . . . . . . . . .   I-12
Class B Subclass Distribution Amount . . . . . . . . . . . . . . . .   I-12
Class B Subclass Interest Accrual Amount . . . . . . . . . . . . . .   I-12
Class B Subclass Interest Percentage . . . . . . . . . . . . . . . .   I-12
Class B Subclass Interest Shortfall Amount . . . . . . . . . . . . .   I-12
Class B Subclass Loss Percentage . . . . . . . . . . . . . . . . . .   I-12
Class B Subclass Percentage. . . . . . . . . . . . . . . . . . . . .   I-13
Class B Subclass Prepayment Percentage . . . . . . . . . . . . . . .   I-13
Class B Subclass Principal Balance . . . . . . . . . . . . . . . . .   I-13
Class B Subclass Unpaid Interest Shortfall . . . . . . . . . . . . .   I-13
Class B-1 Certificate. . . . . . . . . . . . . . . . . . . . . . . .   I-13


                                      -ii-
<PAGE>


Class B-1 Certificateholder. . . . . . . . . . . . . . . . . . . . .   I-13
Class B-1 Distribution Amount. . . . . . . . . . . . . . . . . . . .   I-13
Class B-1 Interest Shortfall Amount. . . . . . . . . . . . . . . . .   I-13
Class B-1 Optimal Principal Amount . . . . . . . . . . . . . . . . .   I-13
Class B-1 Percentage . . . . . . . . . . . . . . . . . . . . . . . .   I-14
Class B-1 Prepayment Percentage. . . . . . . . . . . . . . . . . . .   I-15
Class B-1 Principal Balance. . . . . . . . . . . . . . . . . . . . .   I-15
Class B-1 Unpaid Interest Shortfall. . . . . . . . . . . . . . . . .   I-15
Class B-2 Certificate. . . . . . . . . . . . . . . . . . . . . . . .   I-15
Class B-2 Certificateholder. . . . . . . . . . . . . . . . . . . . .   I-15
Class B-2 Distribution Amount. . . . . . . . . . . . . . . . . . . .   I-15
Class B-2 Interest Shortfall Amount. . . . . . . . . . . . . . . . .   I-15
Class B-2 Optimal Principal Amount . . . . . . . . . . . . . . . . .   I-16
Class B-2 Percentage . . . . . . . . . . . . . . . . . . . . . . . .   I-17
Class B-2 Prepayment Percentage. . . . . . . . . . . . . . . . . . .   I-17
Class B-2 Principal Balance. . . . . . . . . . . . . . . . . . . . .   I-17
Class B-2 Unpaid Interest Shortfall. . . . . . . . . . . . . . . . .   I-17
Class B-3 Certificate. . . . . . . . . . . . . . . . . . . . . . . .   I-18
Class B-3 Certificateholder. . . . . . . . . . . . . . . . . . . . .   I-18
Class B-3 Distribution Amount. . . . . . . . . . . . . . . . . . . .   I-18
Class B-3 Interest Shortfall Amount. . . . . . . . . . . . . . . . .   I-18
Class B-3 Optimal Principal Amount . . . . . . . . . . . . . . . . .   I-18
Class B-3 Percentage . . . . . . . . . . . . . . . . . . . . . . . .   I-19
Class B-3 Prepayment Percentage. . . . . . . . . . . . . . . . . . .   I-19
Class B-3 Principal Balance. . . . . . . . . . . . . . . . . . . . .   I-19
Class B-3 Unpaid Interest Shortfall. . . . . . . . . . . . . . . . .   I-20
Class B-4 Certificate. . . . . . . . . . . . . . . . . . . . . . . .   I-20
Class B-4 Certificateholder. . . . . . . . . . . . . . . . . . . . .   I-20
Class B-4 Distribution Amount. . . . . . . . . . . . . . . . . . . .   I-20
Class B-4 Interest Shortfall Amount. . . . . . . . . . . . . . . . .   I-20
Class B-4 Optimal Principal Amount . . . . . . . . . . . . . . . . .   I-20
Class B-4 Percentage . . . . . . . . . . . . . . . . . . . . . . . .   I-21
Class B-4 Prepayment Percentage. . . . . . . . . . . . . . . . . . .   I-21
Class B-4 Principal Balance. . . . . . . . . . . . . . . . . . . . .   I-22
Class B-4 Unpaid Interest Shortfall. . . . . . . . . . . . . . . . .   I-22
Class B-5 Certificate. . . . . . . . . . . . . . . . . . . . . . . .   I-22
Class B-5 Certificateholder. . . . . . . . . . . . . . . . . . . . .   I-22
Class B-5 Distribution Amount. . . . . . . . . . . . . . . . . . . .   I-22
Class B-5 Interest Shortfall Amount. . . . . . . . . . . . . . . . .   I-22
Class B-5 Optimal Principal Amount . . . . . . . . . . . . . . . . .   I-22
Class B-5 Percentage . . . . . . . . . . . . . . . . . . . . . . . .   I-24
Class B-5 Prepayment Percentage. . . . . . . . . . . . . . . . . . .   I-24
Class B-5 Principal Balance. . . . . . . . . . . . . . . . . . . . .   I-24
Class B-5 Unpaid Interest Shortfall. . . . . . . . . . . . . . . . .   I-24
Class M Certificate. . . . . . . . . . . . . . . . . . . . . . . . .   I-24


                                      -iii-
<PAGE>


Class M Certificateholder. . . . . . . . . . . . . . . . . . . . . .   I-24
Class M Distribution Amount. . . . . . . . . . . . . . . . . . . . .   I-25
Class M Interest Accrual Amount. . . . . . . . . . . . . . . . . . .   I-25
Class M Interest Shortfall Amount. . . . . . . . . . . . . . . . . .   I-25
Class M Optimal Principal Amount . . . . . . . . . . . . . . . . . .   I-25
Class M Pass-Through Rate. . . . . . . . . . . . . . . . . . . . . .   I-26
Class M Percentage . . . . . . . . . . . . . . . . . . . . . . . . .   I-26
Class M Prepayment Percentage. . . . . . . . . . . . . . . . . . . .   I-26
Class M Principal Balance. . . . . . . . . . . . . . . . . . . . . .   I-27
Class M Unpaid Interest Shortfall. . . . . . . . . . . . . . . . . .   I-27
Classes A/M/B Fraction . . . . . . . . . . . . . . . . . . . . . . .   I-27
Classes A/M/B Voting Interest. . . . . . . . . . . . . . . . . . . .   I-27
Clearing Agency. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-27
Clearing Agency Participant. . . . . . . . . . . . . . . . . . . . .   I-27
Closing Date   . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-27
Code           . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-27
Co-op Shares   . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-27
Corporate Trust Office . . . . . . . . . . . . . . . . . . . . . . .   I-27
Cross-Over Date. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-28
Current Class A Interest Distribution Amount . . . . . . . . . . . .   I-28
Current Class B Interest Distribution Amount . . . . . . . . . . . .   I-28
Current Class B-1 Fractional Interest. . . . . . . . . . . . . . . .   I-28
Current Class B-2 Fractional Interest. . . . . . . . . . . . . . . .   I-28
Current Class B-3 Fractional Interest. . . . . . . . . . . . . . . .   I-28
Current Class B-4 Fractional Interest. . . . . . . . . . . . . . . .   I-28
Current Class M Fractional Interest. . . . . . . . . . . . . . . . .   I-28
Current Class M Interest Distribution Amount . . . . . . . . . . . .   I-28
Curtailment    . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-29
Curtailment Interest Shortfall . . . . . . . . . . . . . . . . . . .   I-29
Custodial Agreement. . . . . . . . . . . . . . . . . . . . . . . . .   I-29
Custodial P&I Agreement. . . . . . . . . . . . . . . . . . . . . . .   I-29
Custodian      . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-29
Cut-Off Date   . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-29
Cut-Off Date Aggregate Principal Balance . . . . . . . . . . . . . .   I-29
Cut-Off Date Principal Balance . . . . . . . . . . . . . . . . . . .   I-29
DCR            . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-29
Debt Service Reduction . . . . . . . . . . . . . . . . . . . . . . .   I-30
Deficient Valuation. . . . . . . . . . . . . . . . . . . . . . . . .   I-30
Definitive Certificates. . . . . . . . . . . . . . . . . . . . . . .   I-30
Denomination   . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-30
Determination Date . . . . . . . . . . . . . . . . . . . . . . . . .   I-30
Discount Mortgage Loan . . . . . . . . . . . . . . . . . . . . . . .   I-30
Distribution Date. . . . . . . . . . . . . . . . . . . . . . . . . .   I-30
Due Date       . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-30
Eligible Account . . . . . . . . . . . . . . . . . . . . . . . . . .   I-30


                                      -iv-
<PAGE>


Eligible Investments . . . . . . . . . . . . . . . . . . . . . . . .   I-31
ERISA          . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-32
ERISA Plan     . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-32
ERISA Prohibited Holder. . . . . . . . . . . . . . . . . . . . . . .   I-32
Errors and Omissions Policy. . . . . . . . . . . . . . . . . . . . .   I-32
Event of Default . . . . . . . . . . . . . . . . . . . . . . . . . .   I-32
Excess Bankruptcy Loss . . . . . . . . . . . . . . . . . . . . . . .   I-32
Excess Fraud Loss. . . . . . . . . . . . . . . . . . . . . . . . . .   I-33
Excess Special Hazard Loss . . . . . . . . . . . . . . . . . . . . .   I-33
FDIC           . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-33
FHLMC          . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-33
Fidelity Bond  . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-33
Final Distribution Date. . . . . . . . . . . . . . . . . . . . . . .   I-33
Fitch          . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-33
Fixed Retained Yield . . . . . . . . . . . . . . . . . . . . . . . .   I-33
Fixed Retained Yield Rate. . . . . . . . . . . . . . . . . . . . . .   I-34
FNMA           . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-34
Foreclosure Profits. . . . . . . . . . . . . . . . . . . . . . . . .   I-34
Fraud Loss     . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-34
Fraud Loss Amount. . . . . . . . . . . . . . . . . . . . . . . . . .   I-34
Holder         . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-34
Independent    . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-34
Insurance Policy . . . . . . . . . . . . . . . . . . . . . . . . . .   I-35
Insurance Proceeds . . . . . . . . . . . . . . . . . . . . . . . . .   I-35
Insured Expenses . . . . . . . . . . . . . . . . . . . . . . . . . .   I-35
Liquidated Loan. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-35
Liquidated Loan Loss . . . . . . . . . . . . . . . . . . . . . . . .   I-35
Liquidation Expenses . . . . . . . . . . . . . . . . . . . . . . . .   I-35
Liquidation Proceeds . . . . . . . . . . . . . . . . . . . . . . . .   I-35
Loan-To-Value Ratio. . . . . . . . . . . . . . . . . . . . . . . . .   I-35
Master Servicer. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-36
Master Servicing Fee . . . . . . . . . . . . . . . . . . . . . . . .   I-36
Master Servicing Fee Rate. . . . . . . . . . . . . . . . . . . . . .   I-36
Monthly Payment. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-36
Moody's        . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-36
Mortgage       . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-36
Mortgage Interest Rate . . . . . . . . . . . . . . . . . . . . . . .   I-36
Mortgage Loan Rider. . . . . . . . . . . . . . . . . . . . . . . . .   I-36
Mortgage Loan Schedule . . . . . . . . . . . . . . . . . . . . . . .   I-36
Mortgage Loans . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-37
Mortgage Note  . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-37


                                       -v-
<PAGE>


Mortgaged Property . . . . . . . . . . . . . . . . . . . . . . . . .   I-37
Mortgagor      . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-37
Net Foreclosure Profits. . . . . . . . . . . . . . . . . . . . . . .   I-38
Net Liquidation Proceeds . . . . . . . . . . . . . . . . . . . . . .   I-38
Net Mortgage Interest Rate . . . . . . . . . . . . . . . . . . . . .   I-38
Net Partial Liquidation Proceeds . . . . . . . . . . . . . . . . . .   I-38
Net REO Proceeds . . . . . . . . . . . . . . . . . . . . . . . . . .   I-38
Non-permitted Foreign Holder . . . . . . . . . . . . . . . . . . . .   I-38
Nonrecoverable Advance . . . . . . . . . . . . . . . . . . . . . . .   I-38
Non-Supported Interest Shortfall . . . . . . . . . . . . . . . . . .   I-38
Non-U.S. Person. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-39
Norwest Mortgage . . . . . . . . . . . . . . . . . . . . . . . . . .   I-39
Norwest Mortgage Loan Sellers. . . . . . . . . . . . . . . . . . . .   I-39
Norwest Mortgage Servicing Agreement . . . . . . . . . . . . . . . .   I-39
Officers' Certificate. . . . . . . . . . . . . . . . . . . . . . . .   I-39
Opinion of Counsel . . . . . . . . . . . . . . . . . . . . . . . . .   I-39
Optimal Adjustment Event . . . . . . . . . . . . . . . . . . . . . .   I-39
Original Class A Percentage. . . . . . . . . . . . . . . . . . . . .   I-39
Original Class A Principal Balance . . . . . . . . . . . . . . . . .   I-40
Original Class A Subclass Principal Balance. . . . . . . . . . . . .   I-40
Original Class AP Principal Balance. . . . . . . . . . . . . . . . .   I-40
Original Class B Principal Balance . . . . . . . . . . . . . . . . .   I-40
Original Class B-1 Percentage. . . . . . . . . . . . . . . . . . . .   I-40
Original Class B-2 Percentage. . . . . . . . . . . . . . . . . . . .   I-40
Original Class B-3 Percentage. . . . . . . . . . . . . . . . . . . .   I-40
Original Class B-4 Percentage. . . . . . . . . . . . . . . . . . . .   I-40
Original Class B-5 Percentage. . . . . . . . . . . . . . . . . . . .   I-40
Original Class B-1 Principal Balance . . . . . . . . . . . . . . . .   I-40
Original Class B-2 Principal Balance . . . . . . . . . . . . . . . .   I-40
Original Class B-3 Principal Balance . . . . . . . . . . . . . . . .   I-40
Original Class B-4 Principal Balance . . . . . . . . . . . . . . . .   I-40
Original Class B-5 Principal Balance . . . . . . . . . . . . . . . .   I-40
Original Class B-1 Fractional Interest . . . . . . . . . . . . . . .   I-40
Original Class B-2 Fractional Interest . . . . . . . . . . . . . . .   I-41
Original Class B-3 Fractional Interest . . . . . . . . . . . . . . .   I-41
Original Class B-4 Fractional Interest . . . . . . . . . . . . . . .   I-41
Original Class M Fractional Interest . . . . . . . . . . . . . . . .   I-41
Original Class M Percentage. . . . . . . . . . . . . . . . . . . . .   I-41
Original Class M Principal Balance . . . . . . . . . . . . . . . . .   I-41
Original Subordinated Percentage . . . . . . . . . . . . . . . . . .   I-41
Original Subordinated Principal Balance. . . . . . . . . . . . . . .   I-41
Other Servicer . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-41
Other Servicing Agreements . . . . . . . . . . . . . . . . . . . . .   I-41
Outstanding Mortgage Loan. . . . . . . . . . . . . . . . . . . . . .   I-42
Owner Mortgage Loan File . . . . . . . . . . . . . . . . . . . . . .   I-42
PAC Certificates . . . . . . . . . . . . . . . . . . . . . . . . . .   I-42
PAC Principal Amount . . . . . . . . . . . . . . . . . . . . . . . .   I-42
Partial Liquidation Interest Shortfall . . . . . . . . . . . . . . .   I-42
Partial Liquidation Proceeds . . . . . . . . . . . . . . . . . . . .   I-42
Partial Liquidation Receipt Period . . . . . . . . . . . . . . . . .   I-42


                                      -vi-
<PAGE>


Paying Agent   . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-42
Payment Account. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-42
Percentage Interest. . . . . . . . . . . . . . . . . . . . . . . . .   I-42
Periodic Advance . . . . . . . . . . . . . . . . . . . . . . . . . .   I-43
Person         . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-43
Plan           . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-43
Pool Balance (Classes A/M/B Portion) . . . . . . . . . . . . . . . .   I-43
Pool Balance (Class AP Portion). . . . . . . . . . . . . . . . . . .   I-43
Pool Distribution Amount . . . . . . . . . . . . . . . . . . . . . .   I-43
Pool Scheduled Principal Balance . . . . . . . . . . . . . . . . . .   I-44
Prepayment In Full . . . . . . . . . . . . . . . . . . . . . . . . .   I-44
Prepayment Interest Shortfall. . . . . . . . . . . . . . . . . . . .   I-44
Principal Adjustment . . . . . . . . . . . . . . . . . . . . . . . .   I-45
Principal Prepayment . . . . . . . . . . . . . . . . . . . . . . . .   I-45
Prohibited Transaction Tax . . . . . . . . . . . . . . . . . . . . .   I-45
Prudent Servicing Practices. . . . . . . . . . . . . . . . . . . . .   I-45
Rating Agency  . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-45
Realized Losses. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-45
Record Date    . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-46
Relevant Anniversary . . . . . . . . . . . . . . . . . . . . . . . .   I-46
REMIC          . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-46
REMIC Provisions . . . . . . . . . . . . . . . . . . . . . . . . . .   I-46
Remittance Date. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-46
REO Mortgage Loan. . . . . . . . . . . . . . . . . . . . . . . . . .   I-46
REO Proceeds   . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-46
Request for Release. . . . . . . . . . . . . . . . . . . . . . . . .   I-46
Responsible Officer. . . . . . . . . . . . . . . . . . . . . . . . .   I-46
Rule 144A      . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-46
S&P            . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-46
Scheduled Principal Amount . . . . . . . . . . . . . . . . . . . . .   I-46
Scheduled Principal Balance. . . . . . . . . . . . . . . . . . . . .   I-46
Seller         . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Senior Optimal Amount. . . . . . . . . . . . . . . . . . . . . . . .   I-47
Servicer Mortgage Loan File. . . . . . . . . . . . . . . . . . . . .   I-47
Servicers      . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Servicing Agreements . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Servicing Fee  . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Servicing Fee Rate . . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Servicing Officer. . . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Similar Law    . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Single Certificate . . . . . . . . . . . . . . . . . . . . . . . . .   I-47


                                      -vii-
<PAGE>


Special Hazard Loss. . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Special Hazard Loss Amount . . . . . . . . . . . . . . . . . . . . .   I-47
Special Hazard Percentage. . . . . . . . . . . . . . . . . . . . . .   I-47
Startup Day    . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Subclass       . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-47
Subordinated Percentage. . . . . . . . . . . . . . . . . . . . . . .   I-47
Subordinated Prepayment Percentage . . . . . . . . . . . . . . . . .   I-48
Subsidy Loan   . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-49
Substitution Principal Amount. . . . . . . . . . . . . . . . . . . .   I-49
TAC Certificates . . . . . . . . . . . . . . . . . . . . . . . . . .   I-49
TAC Principal Amount . . . . . . . . . . . . . . . . . . . . . . . .   I-49
T.O.P. Mortgage Loan . . . . . . . . . . . . . . . . . . . . . . . .   I-49
Trust Estate   . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-49
Trustee        . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-49
Trustee Fee    . . . . . . . . . . . . . . . . . . . . . . . . . . .   I-49
Trustee Fee Rate . . . . . . . . . . . . . . . . . . . . . . . . . .   I-49
Voting Interest. . . . . . . . . . . . . . . . . . . . . . . . . . .   I-49
Weighted Average Net Mortgage Interest Rate. . . . . . . . . . . . .   I-50

Section 1.02.  Acts of Holders . . . . . . . . . . . . . . . . . . .   I-50
Section 1.03.  Effect of Headings and Table of Contents. . . . . . .   I-51
Section 1.04.  Benefits of Agreement . . . . . . . . . . . . . . . .   I-51

ARTICLE II     CONVEYANCE OF MORTGAGE LOANS; ORIGINAL
               ISSUANCE OF THE CERTIFICATES  . . . . . . . . . . . .   II-1

Section 2.01.  Conveyance of Mortgage Loans  . . . . . . . . . . . .   II-1
Section 2.02.  Acceptance by Trustee . . . . . . . . . . . . . . . .   II-2
Section 2.05.  Representations and Warranties of the Master
                 Servicer. . . . . . . . . . . . . . . . . . . . . .   II-3
Section 2.06.  Execution and Delivery of Certificates  . . . . . . .   II-9
Section 2.07.  Designation of Certificates; Designation
                 of Startup Day and Latest Possible
                 Maturity Date . . . . . . . . . . . . . . . . . . .   II-9

ARTICLE III    ADMINISTRATION OF THE TRUST ESTATE:
                 SERVICING OF THE MORTGAGE LOANS . . . . . . . . . .  III-1

Section 3.01.  Certificate AccountII . . . . . . . . . . . . . . . .  III-1
Section 3.02.  Permitted Withdrawals from the
                 Certificate Account . . . . . . . . . . . . . . . .  III-2
Section 3.03.  Advances by Master Servicer and Trustee . . . . . . .  III-3
Section 3.04.  Trustee to Cooperate; Release of
                 Owner Mortgage Loan Files . . . . . . . . . . . . .  III-4
Section 3.05.  Reports to the Trustee; 
                 Annual Compliance Statements. . . . . . . . . . . .  III-5
Section 3.06.  Title, Management and Disposition of 
                 Any REO Mortgage Loan . . . . . . . . . . . . . . .  III-6


                                     -viii-
<PAGE>


Section 3.07.  Amendments to Servicing Agreements,
                 Modification of Standard Provisions . . . . . . . .  III-7
Section 3.08.  Oversight of Servicing. . . . . . . . . . . . . . . .  III-7
Section 3.09.  Termination and Substitution of Servicing
                 Agreements  . . . . . . . . . . . . . . . . . . . . III-10
Section 3.10.  1934 Act Reports. . . . . . . . . . . . . . . . . . . III-10

ARTICLE IV     DISTRIBUTIONS IN RESPECT OF CERTIFICATES;
               PAYMENTS TO CERTIFICATEHOLDERS;
               STATEMENTS AND REPORTS. . . . . . . . . . . . . . . .   IV-1

Section 4.01.  Distributions . . . . . . . . . . . . . . . . . . . .   IV-1
Section 4.02.  Allocation of Realized Losses . . . . . . . . . . . .   IV-8
Section 4.03.  Paying Agent. . . . . . . . . . . . . . . . . . . . .  IV-10
Section 4.04.  Statements to Certificateholders; 
                 Report to the Trustee and 
                 the Seller. . . . . . . . . . . . . . . . . . . . .  IV-11
Section 4.05.  Reports to Mortgagors and the Internal
                 Revenue Service . . . . . . . . . . . . . . . . . .  IV-15

ARTICLE V      THE CERTIFICATES. . . . . . . . . . . . . . . . . . .    V-1

Section 5.01.  The Certificates. . . . . . . . . . . . . . . . . . .    V-1
Section 5.02.  Registration of Transfer and Exchange of
                 Certificates. . . . . . . . . . . . . . . . . . . .    V-3
Section 5.03.  Mutilated, Destroyed, Lost or Stolen Certificates . .    V-6
Section 5.04.  Persons Deemed Owners . . . . . . . . . . . . . . . .    V-6
Section 5.05.  Access to List of Certificateholders' 
                 Names and Addresses . . . . . . . . . . . . . . . .    V-6
Section 5.06.  Maintenance of Office or Agency . . . . . . . . . . .    V-7
Section 5.07.  Definitive Certificates . . . . . . . . . . . . . . .    V-7
Section 5.08.  Notices to Clearing Agency. . . . . . . . . . . . . .    V-8

ARTICLE VI     THE SELLER AND THE MASTER SERVICER. . . . . . . . . .   VI-1

Section 6.01.  Liability of the Seller and the 
                 Master Servicer . . . . . . . . . . . . . . . . . .   VI-1
Section 6.02.  Merger or Consolidation of the Seller
                 or the Master Servicer. . . . . . . . . . . . . . .   VI-1
Section 6.03.  Limitation on Liability of the Seller,
                 the Master Servicer and Others. . . . . . . . . . .   VI-1
Section 6.04.  Resignation of the Master Servicer. . . . . . . . . .   VI-2
Section 6.05.  Compensation to the Master Servicer . . . . . . . . .   VI-2


                                      -ix-
<PAGE>


Section 6.06.  Assignment or Delegation of Duties by 
                 Master Servicer . . . . . . . . . . . . . . . . . .   VI-2

ARTICLE VIIDEFAULT . . . . . . . . . . . . . . . . . . . . . . . . .  VII-1

Section 7.01.  Events of Default . . . . . . . . . . . . . . . . . .  VII-1
Section 7.02.  Other Remedies of Trustee . . . . . . . . . . . . . .  VII-2
Section 7.03.  Directions by Certificateholders and Duties
                 of Trustee During Event of Default. . . . . . . . .  VII-2
Section 7.04.  Action upon Certain Failures of the Master
                 Servicer and upon Event of Default. . . . . . . . .  VII-3
Section 7.05.  Trustee to Act; Appointment of Successor. . . . . . .  VII-3
Section 7.06.  Notification to Certificateholders. . . . . . . . . .  VII-5

ARTICLE VIII   CONCERNING THE TRUSTEE. . . . . . . . . . . . . . . . VIII-1

Section 8.01.  Duties of Trustee . . . . . . . . . . . . . . . . . . VIII-1
Section 8.02.  Certain Matters Affecting the Trustee . . . . . . . . VIII-2
Section 8.03.  Trustee Not Required to Make Investigation. . . . . . VIII-2
Section 8.04.  Trustee Not Liable for Certificates or Mortgage Loans VIII-3
Section 8.05.  Trustee May Own Certificates. . . . . . . . . . . . . VIII-3
Section 8.06.  Compensation of the Trustee . . . . . . . . . . . . . VIII-3
Section 8.07.  Eligibility Requirements. . . . . . . . . . . . . . . VIII-3
Section 8.08.  Resignation and Removal . . . . . . . . . . . . . . . VIII-3
Section 8.09.  Successor . . . . . . . . . . . . . . . . . . . . . . VIII-4
Section 8.10.  Merger or Consolidation . . . . . . . . . . . . . . . VIII-5
Section 8.11.  Authenticating Agent. . . . . . . . . . . . . . . . . VIII-5
Section 8.12.  Separate Trustees and Co-Trustees . . . . . . . . . . VIII-6
Section 8.13.  Appointment of Custodians . . . . . . . . . . . . . . VIII-7
Section 8.14.  Tax Matters; Compliance with REMIC Provisions . . . . VIII-8
Section 8.15.  Monthly Advances. . . . . . . . . . . . . . . . . . .VIII-10
ARTICLE IX     TERMINATION . . . . . . . . . . . . . . . . . . . . .   IX-1

Section 9.01.  Termination upon Purchase by the Seller
                 or Liquidation of All 
                 Mortgage Loans. . . . . . . . . . . . . . . . . . .   IX-1
Section 9.02.  Additional Termination Requirements . . . . . . . . .   IX-3

ARTICLE X      MISCELLANEOUS PROVISIONS. . . . . . . . . . . . . . .    X-1

Section 10.01. Amendment . . . . . . . . . . . . . . . . . . . . . .    X-1
Section 10.02. Recordation of Agreement. . . . . . . . . . . . . . .    X-2


                                       -x-
<PAGE>


Section 10.03. Limitation on Rights of Certificateholders. . . . . .    X-2
Section 10.04. Governing Law; Jurisdiction . . . . . . . . . . . . .    X-3
Section 10.05. Notices . . . . . . . . . . . . . . . . . . . . . . .    X-3
Section 10.06. Severability of Provisions. . . . . . . . . . . . . .    X-4
Section 10.07. Special Notices to Rating Agencies. . . . . . . . . .    X-4
Section 10.08. Covenant of Seller. . . . . . . . . . . . . . . . . .    X-5
Section 10.09. Recharacterization. . . . . . . . . . . . . . . . . .    X-5

ARTICLE XI     TERMS FOR CERTIFICATES. . . . . . . . . . . . . . . .   XI-1

Section 11.01. Class A Fixed Pass-Through Rate . . . . . . . . . . .   XI-1
Section 11.02. Cut-Off Date. . . . . . . . . . . . . . . . . . . . .   XI-1
Section 11.03. Cut-Off Date Aggregate Principal Balance. . . . . . .   XI-1
Section 11.04. Original Class A Percentage . . . . . . . . . . . . .   XI-1
Section 11.05. Original Class A Subclass Principal Balances. . . . .   XI-1
Section 11.06. Original Class A Principal Balance. . . . . . . . . .   XI-1
Section 11.07. Original Class AP Principal Balance . . . . . . . . .   XI-1
Section 11.08. Original Class M Percentage . . . . . . . . . . . . .   XI-1
Section 11.09. Original Class M Principal Balance. . . . . . . . . .   XI-1
Section 11.10. Original Class M Fractional Interest. . . . . . . . .   XI-1
Section 11.11. Master Servicing Fee Rate . . . . . . . . . . . . . .   XI-2
Section 11.12. Original Class B-1 Percentage . . . . . . . . . . . .   XI-2
Section 11.13. Original Class B-2 Percentage . . . . . . . . . . . .   XI-2
Section 11.14. Original Class B-3 Percentage . . . . . . . . . . . .   XI-2
Section 11.15. Original Class B-4 Percentage . . . . . . . . . . . .   XI-2
Section 11.16. Original Class B-5 Percentage . . . . . . . . . . . .   XI-2
Section 11.17. Original Class B Principal Balance. . . . . . . . . .   XI-2
Section 11.18. Original Class B Subclass Principal Balances. . . . .   XI-2
Section 11.19. Original Class B-1 Fractional Interest. . . . . . . .   XI-2
Section 11.20. Original Class B-2 Fractional Interest. . . . . . . .   XI-2
Section 11.21. Original Class B-3 Fractional Interest. . . . . . . .   XI-2
Section 11.22. Original Class B-4 Fractional Interest. . . . . . . .   XI-2
Section 11.23. Original Subordinated Percentage. . . . . . . . . . .   XI-3
Section 11.24. Closing Date. . . . . . . . . . . . . . . . . . . . .   XI-3
Section 11.25. Right to Purchase . . . . . . . . . . . . . . . . . .   XI-3
Section 11.26. Wire Transfer Eligibility . . . . . . . . . . . . . .   XI-3
Section 11.27. Single Certificate. . . . . . . . . . . . . . . . . .   XI-3
Section 11.28. Servicing Fee Rate. . . . . . . . . . . . . . . . . .   XI-3
Section 11.29. Trustee Fee Rate. . . . . . . . . . . . . . . . . . .   XI-3


                                      -xi-
<PAGE>





                                    EXHIBITS

EXHIBIT A-1    -    Form of Face of Class A-1 Certificate
EXHIBIT A-2    -    Form of Face of Class A-2 Certificate
EXHIBIT A-3    -    Form of Face of Class A-3 Certificate
EXHIBIT A-4    -    Form of Face of Class A-4 Certificate
EXHIBIT A-5    -    Form of Face of Class A-5 Certificate
EXHIBIT A-R    -    Form of Face of Class A-R Certificate
EXHIBIT B-1    -    Form of Face of Class B-1 Certificate
EXHIBIT B-2    -    Form of Face of Class B-2 Certificate
EXHIBIT B-3    -    Form of Face of Class B-3 Certificate
EXHIBIT B-4    -    Form of Face of Class B-4 Certificate
EXHIBIT B-5    -    Form of Face of Class B-5 Certificate
EXHIBIT C-1    -    Form of Face of Class AP Certificate
EXHIBIT C      -    Form of Face of Class M Certificate
EXHIBIT D      -    Form of Reverse of Series 199_-__ Certificates
EXHIBIT E      -    Custodial Agreement
EXHIBIT F-1    -    Schedule of Mortgage Loans Serviced by Norwest Mortgage
EXHIBIT F-2    -    Schedule of Mortgage Loans Serviced by Other Servicers
EXHIBIT G      -    Request for Release
EXHIBIT H      -    Affidavit Pursuant to Section 860E(e)(4) of
                       the Internal Revenue Code of 1986, as amended, and for
                       Non-ERISA Investors
EXHIBIT I      -    Letter from Transferor of Residual Certificates
EXHIBIT J      -    Transferee's Letter (Class [B-1] [B-2] [B-3] [B-4] [B-5]
                       Certificates)
EXHIBIT K      -    Transferee's Letter (Class M Certificates)
EXHIBIT L      -    Servicing Agreements
EXHIBIT M           Form of Special Servicing Agreement


                                      -xii- 
<PAGE>

          This Pooling and Servicing Agreement, dated as of ___________, 199_
executed by NORWEST ASSET SECURITIES CORPORATION, as Seller, NORWEST BANK
MINNESOTA, NATIONAL ASSOCIATION, as Master Servicer, and [TRUSTEE], as Trustee.

                                WITNESSETH THAT:

          In consideration of the mutual agreements herein contained, the
Seller, the Master Servicer and the Trustee 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.

          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, Liquidation Proceeds, Principal Prepayments, Substitution Principal
Amounts and Net REO Proceeds) 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 (CLASS AP 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 Class AP 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, Liquidation
Proceeds, Principal Prepayments, Substitution Principal Amounts and Net REO
Proceeds) 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



<PAGE>


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 and, 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 AP 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 AP 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) 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.

          AMOUNT HELD FOR FUTURE DISTRIBUTION:  As to any Distribution Date, the
total of the amounts held in the Custodial P&I Accounts or Certificate Account
on account of (a)(i) Principal Prepayments and all related payments of interest
received on or after the Determination Date occurring in the month of such
Distribution Date, (ii) Liquidation Proceeds (other than Partial Liquidation
Proceeds) received in the month of such Distribution 

                                       I-2

<PAGE>

Date, (iii) Partial Liquidation Proceeds received on or after the 
Determination Date occurring in the month of such Distribution Date and (iv) 
amounts received from the Seller pursuant to Section 2.02 or Section 2.03 in 
the month of such Distribution

Date and (b) payments which represent early receipt of scheduled payments of
principal and interest due on a date or dates subsequent to the related Due
Date.

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

          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 Trustee 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
$___________ 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 or Class A-5
Certificates, beneficial

                                       I-3

<PAGE>

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 or State of Missouri 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 or State of Missouri are authorized or obligated by law or executive
order to be closed.

          CERTIFICATE:  Any one of the Class A Certificates, Class AP
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 Trustee.

          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 the Class A-1 Certificates, Class A-2
Certificates, Class A-3 Certificates, Class A-4 Certificates, Class A-5
Certificates or Class A-R 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 and THIRD clause (A) of Section 4.01(a) 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.


                                       I-4
<PAGE>


          CLASS A 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 Optimal Principal Amount.

          CLASS A 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 Classes A/M/B 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 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, net of any
     unreimbursed Periodic Advances in respect of principal previously made by
     the Servicer, Master Servicer or Trustee with respect to such Mortgage
     Loan;

          (iii)     the Class A Prepayment Percentage of (a) the aggregate Net
     Liquidation Proceeds (other than Net Partial Liquidation Proceeds) of any
     such Mortgage Loan that became a Liquidated Loan in the month preceding the
     month of such Distribution Date (excluding the portion thereof, if any,
     constituting Net Foreclosure Profits) less the sum of (A) any unreimbursed
     Periodic Advances in respect of principal previously made by the Servicer,
     the Master Servicer or the Trustee with respect to such Liquidated Loan and
     (B) the portion of the Net Liquidation Proceeds allocable to interest and
     (b) the aggregate Net Partial Liquidation Proceeds on any such Mortgage
     Loan received by a Servicer during the related Partial Liquidation Receipt
     Period, less the sum of (A) the amounts allocable to principal of any
     unreimbursed Periodic Advances previously made by such Servicer, the Master
     Servicer or the Trustee and (B) the portion of the Net Partial Liquidation
     Proceeds allocable to interest;

          (iv) the Class A Prepayment Percentage of the Scheduled Principal
     Balance of such Mortgage Loan if such Mortgage Loan was the subject of a
     Prepayment in Full during the period from and including the Determination
     Date in the month preceding the month of such Distribution Date up to (but
     not including) the Determination Date occurring in the month of such
     Distribution Date;

          (v)  the Class A Prepayment Percentage of all partial principal
     prepayments received on or after the Determination Date occurring in the
     month preceding the month in which such Distribution Date occurs and prior
     to the Determination Date occurring in the month in which such Distribution
     Date occurs; and

          (vi) the Class A Percentage of the difference between the unpaid
     principal balance of such Mortgage Loan substituted for a defective
     Mortgage Loan during the


                                       I-5
<PAGE>


     month preceding the month in which such Distribution Date occurs and 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 Trustee in
     respect of such defective Mortgage Loan.

          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 Principal Balance (determined as of the Determination
Date preceding such Distribution Date) by the Pool Balance (Classes A/M/B
Portion).  As to any Distribution Date occurring subsequent to the Cross-Over
Date, 100% or such lesser percentage which will cause the Class A 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 ________ 200_, 100%.  As to any Distribution
Date subsequent to ________ 200_ to and including the Distribution Date in
________ 200_, 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 ________ 200_ to and including the Distribution
Date in ________ 200_, 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 ________ 200_ to and including the Distribution
Date in ________ 200_, 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 ________ 200_ to and including the Distribution
Date in ________ 200_, 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 ________ 200_, 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) Principal
Prepayments distributable on such Distribution Date, (b) the principal portion
of Net Partial Liquidation Proceeds (excluding any amount constituting Net
Foreclosure Profits) of each Mortgage Loan which became a Liquidated Loan during
the month preceding the month of such Distribution Date or (c) Net Partial
Liquidation Proceeds received during the Partial Liquidation Receipt Period,
would reduce the Class A Principal Balance below zero, the Class A Prepayment
Percentage for such Distribution Date shall be the percentage necessary to bring
the Class A 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


                                       I-6
<PAGE>


Percentage for the Distribution Date occurring in the ________ 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 sum 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 ________ 200_ and ________ 200_, (2) 35% of the Original
Subordinated Principal Balance if such Distribution Date occurs between and
including ________ 200_ and ________ 200_, (3) 40% of the Original Subordinated
Principal Balance if such Distribution Date occurs between and including
________ 200_ and ________ 200_, (4) 45% of the Original Subordinated Principal
Balance if such Distribution Date occurs between and including ________ 200_
and ________ 200_, and (5) 50% of the Original Subordinated Principal Balance if
such Distribution Date occurs during or after ________ 200_.  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 Trustee, 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.

          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-5
Certificates and Class A-R Certificate.

          CLASS A PRINCIPAL DISTRIBUTION 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).

          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 Certificates and Class A-R
Certificate.

          CLASS A SUBCLASS DISTRIBUTION AMOUNT:  As to any Distribution Date and
any Class A Subclass, the amount distributable to such Class A Subclass pursuant
to Paragraphs FIRST, SECOND and THIRD clause (A) of Section 4.01(a).

          CLASS A SUBCLASS INTEREST ACCRUAL AMOUNT:  As to any Distribution Date
and any Class A Subclass, (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


                                       I-7
<PAGE>


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).

          CLASS A SUBCLASS INTEREST PERCENTAGE:  As to any Distribution Date and
any Class A Subclass, 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).

          CLASS A SUBCLASS LOSS PERCENTAGE:  As to any Determination Date and
any Subclass of Class A Certificates then outstanding, the percentage calculated
by dividing the Class A Subclass Principal Balance of such Subclass by the Class
A Principal Balance (determined without regard to any Class A Subclass Principal
Balance of any Subclass of Class A Certificates not then outstanding), in each
case determined as of the preceding Determination Date.

          CLASS A SUBCLASS PASS-THROUGH RATE:  As to each Class A Subclass, the
Class A Fixed Pass-Through Rate.

          CLASS A SUBCLASS PRINCIPAL BALANCE:  As of the first Determination
Date and as to any Class A Subclass, 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, the Original Class A
Subclass Principal Balance of such Class A Subclass 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)
and (B) as a result of a Principal Adjustment and (b) all amounts previously
allocated to such Class A Subclass with respect to prior Distribution Dates
pursuant to Section 4.02(b).  After the Cross-Over Date, each 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 Principal Balance for 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 (Class AP Portion) for the preceding Distribution Date.


                                       I-8
<PAGE>


          CLASS A SUBCLASS SHORTFALL PERCENTAGE:  As to any Distribution Date
and Class A Subclass, the percentage calculated by dividing the Class A Subclass
Unpaid Interest Shortfall for such Class A Subclass by the Class A Unpaid
Interest Shortfall, in each case determined as of the day preceding the
applicable 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 on prior Distribution Dates pursuant to Paragraph SECOND of
Section 4.01(a).

          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 product of (i) the then applicable Class
A Percentage and (ii) the Classes A/M/B Voting Interest.

          CLASS A-1 CERTIFICATE:  Any one of the Certificates executed by the
Trustee and authenticated by the Trustee 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
Trustee and authenticated by the Trustee 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
Trustee and authenticated by the Trustee 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
Trustee and authenticated by the Trustee 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:  Any one of the Certificates executed by the
Trustee and authenticated by the Trustee 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 a Class A-5
Certificate.

                                       I-9
<PAGE>


          CLASS A-R CERTIFICATE:  The Certificate executed by the Trustee and
authenticated by the Trustee 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 AP CERTIFICATE:  Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit C and Exhibit D hereto.

          CLASS AP CERTIFICATEHOLDER:  The registered holder of a Class AP
Certificate.

          CLASS AP DEFERRED AMOUNT:  For any Distribution Date prior to the
Cross-Over Date, the difference between (A) the sum of (i) the amount by which
the sum of the Class AP Optimal Principal Amounts for all prior Distribution
Dates exceeded the amounts distributed on the Class AP Certificates on such
prior Distribution Dates pursuant to Paragraph THIRD clause (B) of Section
4.01(a) and (ii) the sum of the product for each Discount Mortgage Loan which
became a Liquidated Loan in any month preceding the month of the current
Distribution Date of (a) the Class AP 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 AP
Certificates on prior Distribution Dates pursuant to Paragraph FOURTH of Section
4.01(a).  On or after the Cross-Over Date, the Class AP Deferred Amount will be
zero.  No interest will accrue on any Class AP Deferred Amount.

          CLASS AP DISTRIBUTION AMOUNT:  As to any Distribution Date, the
aggregate amount distributable to the Class AP Certificates pursuant to
Paragraphs THIRD clause (B) and FOURTH of Section 4.01(a) on such Distribution
Date.

          CLASS AP FRACTION:  With respect to any Discount Mortgage Loan, the
difference between 1.0 and the Classes A/M/B Fraction for such Mortgage Loan;
with respect to any other Mortgage Loan, zero.

          CLASS AP 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 Class AP 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) the Scheduled Principal Balance of each Mortgage Loan that was
     repurchased by the Seller during such preceding month pursuant to Section
     2.02 or


                                      I-10
<PAGE>


     2.03, net of any unreimbursed Periodic Advances in respect of principal
     previously made by the Servicer, Master Servicer or Trustee with respect to
     such Mortgage Loan;

          (iii)     (a) the aggregate Net Liquidation Proceeds (other than Net
     Partial Liquidation Proceeds) of any such Mortgage Loan that became a
     Liquidated Loan in the month preceding the month of such Distribution Date
     (excluding the portion thereof, if any, constituting Net Foreclosure
     Profits) less the sum of (A) any unreimbursed Periodic Advances in respect
     of principal previously made by the Servicer, Master Servicer or Trustee
     with respect to such Liquidated Loan and (B) the portion of the Net
     Liquidation Proceeds allocable to interest and (b) the aggregate Net
     Partial Liquidation Proceeds on any such Mortgage Loan received by the
     related Servicer, during the related Partial Liquidation Receipt Period,
     less the sum of (A) the amounts allocable to principal of any unreimbursed
     Periodic Advances previously made by such Servicer, the Master Servicer or
     the Trustee and (B) the portion of the Net Partial Liquidation Proceeds
     allocable to interest;

          (iv) the Scheduled Principal Balance of such Mortgage Loan if such
     Mortgage Loan was the subject of a Prepayment in Full during the period
     from and including the Determination Date in the month preceding the month
     of such Distribution Date up to (but not including) the Determination Date
     occurring in the month of such Distribution Date;

          (v)  all partial principal prepayments received on or after the
     Determination Date occurring in the month preceding the month in which such
     Distribution Date occurs and prior to the Determination Date occurring in
     the month in which such Distribution Date occurs; and

          (vi) 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, less the amount
     allocable to the principal portion of any unreimbursed Periodic Advances
     previously made by the Servicer, the Master Servicer or the Trustee in
     respect of such defective Mortgage Loan.

          CLASS AP PRINCIPAL BALANCE:  As to the first Determination Date, the
Original Class AP Principal Balance.  As of any subsequent Determination Date
prior to the Cross-Over Date, the Original Class AP Principal Balance less the
sum of (a) all amounts previously distributed in respect of the Class AP
Certificates on prior Distribution Dates pursuant to Paragraphs THIRD clause (B)
and FOURTH of Section 4.01(a) and (b) the Realized Losses previously allocated
to the Class AP Certificates pursuant to Section 4.02(b).  On or after the
Cross-Over Date, the Class AP Principal Balance will also be reduced on each
Determination Date by an amount equal to the difference, if any, between the
Class AP Principal Balance as of such Determination Date and the Adjusted Pool
Amount (Class AP Portion) as of the preceding Distribution Date.


                                      I-11
<PAGE>


          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 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 PASS-THROUGH RATE:  As to any Distribution Date, ___% per
annum.

          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.


                                      I-12
<PAGE>


          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
Trustee and authenticated by the Trustee 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).

          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).

          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 Classes A/M/B 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 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, net of any
     unreimbursed Periodic Advances in respect of principal previously made by
     the Servicer, Master Servicer or Trustee with respect to such Mortgage
     Loan;


                                      I-13
<PAGE>


          (iii)     the Class B-1 Prepayment Percentage of (a) the aggregate Net
     Liquidation Proceeds (other than Net Partial Liquidation Proceeds) of any
     such Mortgage Loan that became a Liquidated Loan in the month preceding the
     month of such Distribution Date (excluding the portion thereof, if any,
     constituting Net Foreclosure Profits) less the sum of (A) any unreimbursed
     Periodic Advances in respect of principal previously made by the Servicer,
     the Master Servicer or the Trustee with respect to such Liquidated Loan and
     (B) the portion of the Net Liquidation Proceeds allocable to interest and
     (b) the aggregate Net Partial Liquidation Proceeds on any such Mortgage
     Loan received by the related Servicer during the related Partial
     Liquidation Receipt Period, less the sum of (A) the amounts allocable to
     principal of any unreimbursed Periodic Advances previously made by such
     Servicer, the Master Servicer or the Trustee and (B) the portion of the Net
     Partial Liquidation Proceeds allocable to interest;

          (iv) the Class B-1 Prepayment Percentage of the Scheduled Principal
     Balance of such Mortgage Loan if such Mortgage Loan was the subject of a
     Prepayment in Full during the period from and including the Determination
     Date in the month preceding the month of such Distribution Date up to (but
     not including) the Determination Date occurring in the month of such
     Distribution Date;

          (v)  the Class B-1 Prepayment Percentage of all partial principal
     prepayments received on or after the Determination Date occurring in the
     month preceding the month in which such Distribution Date occurs and prior
     to the Determination Date occurring in the month in which such Distribution
     Date occurs; and

          (vi) the Class B-1 Prepayment Percentage of 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, less the amount allocable to the principal portion of any
     unreimbursed Periodic Advances previously made by the Servicer, the Master
     Servicer or the Trustee 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


                                      I-14
<PAGE>


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 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) and
(B) as a result of a Principal Adjustment and (b) the Realized Losses previously
allocated 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, the Class AP 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).

          CLASS B-2 CERTIFICATE:  Any one of the Certificates executed by the
Trustee and authenticated by the Trustee 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).

          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-15
<PAGE>


          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 Classes A/M/B 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 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, net of any
     unreimbursed Periodic Advances in respect of principal previously made by
     the Servicer, Master Servicer or Trustee with respect to such Mortgage
     Loan;

          (iii)     the Class B-2 Prepayment Percentage of (a) the aggregate Net
     Liquidation Proceeds (other than Net Partial Liquidation Proceeds) of any
     such Mortgage Loan that became a Liquidated Loan in the month preceding the
     month of such Distribution Date (excluding the portion thereof, if any,
     constituting Net Foreclosure Profits) less the sum of (A) any unreimbursed
     Periodic Advances in respect of principal previously made by the Servicer,
     the Master Servicer or the Trustee with respect to such Liquidated Loan and
     (B) the portion of the Net Liquidation Proceeds allocable to interest and
     (b) the aggregate Net Partial Liquidation Proceeds on any such Mortgage
     Loan received by the related Servicer during the related Partial
     Liquidation Receipt Period, less the sum of (A) the amounts allocable to
     principal of any unreimbursed Periodic Advances previously made by such
     Servicer, the Master Servicer or the Trustee and (B) the portion of the Net
     Partial Liquidation Proceeds allocable to interest;

          (iv) the Class B-2 Prepayment Percentage of the Scheduled Principal
     Balance of such Mortgage Loan if such Mortgage Loan was the subject of a
     Prepayment in Full during the period from and including the Determination
     Date in the month preceding the month of such Distribution Date up to (but
     not including) the Determination Date occurring in the month of such
     Distribution Date;

          (v)  the Class B-2 Prepayment Percentage of all partial principal
     prepayments received on or after the Determination Date occurring in the
     month preceding the month in which such Distribution Date occurs and prior
     to the Determination Date occurring in the month in which such Distribution
     Date occurs; and

          (vi) the Class B-2 Prepayment Percentage of 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, less the amount allocable to the principal portion of any
     unreimbursed Periodic Advances previously


                                      I-16
<PAGE>


     made by the Servicer, the Master Servicer or the Trustee 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)
and (B) as a result of a Principal Adjustment and (b) the Realized Losses
previously allocated 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 AP 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-17
<PAGE>


          CLASS B-3 CERTIFICATE:  Any one of the Certificates executed by the
Trustee and authenticated by the Trustee 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).

          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).

          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 Classes A/M/B 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 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, net of any
     unreimbursed Periodic Advances in respect of principal previously made by
     the Servicer, Master Servicer or Trustee with respect to such Mortgage
     Loan;

          (iii)     the Class B-3 Prepayment Percentage of (a) the aggregate Net
     Liquidation Proceeds (other than Net Partial Liquidation Proceeds) of any
     such Mortgage Loan that became a Liquidated Loan in the month preceding the
     month of such Distribution Date (excluding the portion thereof, if any,
     constituting Net Foreclosure Profits) less the sum of (A) any unreimbursed
     Periodic Advances in respect of principal previously made by the Servicer,
     the Master Servicer or the Trustee with respect to such Liquidated Loan and
     (B) the portion of the Net Liquidation Proceeds allocable to interest and
     (b) the aggregate Net Partial Liquidation Proceeds on any such Mortgage
     Loan received by the related Servicer during the related Partial
     Liquidation Receipt Period, less the sum of (A) the amounts allocable to
     principal of any unreimbursed Periodic Advances previously made by such
     Servicer, the Master Servicer or the Trustee and (B) the portion of the Net
     Partial Liquidation Proceeds allocable to interest;

          (iv) the Class B-3 Prepayment Percentage of the Scheduled Principal
     Balance of such Mortgage Loan if such Mortgage Loan was the subject of a
     Prepayment in Full


                                      I-18
<PAGE>


     during the period from and including the Determination Date in the month
     preceding the month of such Distribution Date up to (but not including) the
     Determination Date;

          (v)  the Class B-3 Prepayment Percentage of all partial principal
     prepayments received on or after the Determination Date occurring in the
     month preceding the month in which such Distribution Date occurs and prior
     to the Determination Date occurring in the month in which such Distribution
     Date occurs; and

          (vi) the Class B-3 Prepayment Percentage of 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, less the amount allocable to the principal portion of any
     unreimbursed Periodic Advances previously made by the Servicer, the Master
     Servicer or the Trustee 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


                                      I-19
<PAGE>


respect of the Class B-3 Certificates on prior Distribution Dates (A) pursuant
to Paragraph SIXTEENTH of Section 4.01(a) and (B) as a result of a Principal
Adjustment and (b) the Realized Losses previously 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 AP 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).

          CLASS B-4 CERTIFICATE:  Any one of the Certificates executed by the
Trustee and authenticated by the Trustee 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).

          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).

          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 Classes A/M/B 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 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, net of any
     unreimbursed Periodic Advances in respect of principal previously made by
     the Servicer, Master Servicer or Trustee with respect to such Mortgage
     Loan;

          (iii)     the Class B-4 Prepayment Percentage of (a) the aggregate Net
     Liquidation Proceeds (other than Net Partial Liquidation Proceeds) of any
     such Mortgage Loan that became a Liquidated Loan in the month preceding the
     month of such Distribution Date (excluding the portion thereof, if any,
     constituting Net


                                      I-29
<PAGE>


     Foreclosure Profits) less the sum of (A) any unreimbursed Periodic Advances
     in respect of principal previously made by the Servicer, the Master
     Servicer or the Trustee with respect to such Liquidated Loan and (B) the
     portion of the Net Liquidation Proceeds allocable to interest and (b) the
     aggregate Net Partial Liquidation Proceeds on any such Mortgage Loan
     received by the related Servicer during the related Partial Liquidation
     Receipt Period, less the sum of (A) the amounts allocable to principal of
     any unreimbursed Periodic Advances previously made by such Servicer, the
     Master Servicer or the Trustee and (B) the portion of the Net Partial
     Liquidation Proceeds allocable to interest;

          (iv) the Class B-4 Prepayment Percentage of the Scheduled Principal
     Balance of such Mortgage Loan if such Mortgage Loan was the subject of a
     Prepayment in Full during the period from and including the Determination
     Date in the month preceding the month of such Distribution Date up to (but
     not including) the Determination Date;

          (v)  the Class B-4 Prepayment Percentage of all partial principal
     prepayments received on or after the Determination Date occurring in the
     month preceding the month in which such Distribution Date occurs and prior
     to the Determination Date occurring in the month in which such Distribution
     Date occurs; and

          (vi) the Class B-4 Prepayment Percentage of 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, less the amount allocable to the principal portion of any
     unreimbursed Periodic Advances previously made by the Servicer, the Master
     Servicer or the Trustee 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


                                      I-21
<PAGE>


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)
and (B) as a result of a Principal Adjustment and (b) the Realized Losses
previously allocated 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 AP 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).

          CLASS B-5 CERTIFICATE:  Any one of the Certificates executed by the
Trustee and authenticated by the Trustee 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).

          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).

          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 Classes A/M/B 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


                                      I-22
<PAGE>


     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 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, net of any
     unreimbursed Periodic Advances in respect of principal previously made by
     the Servicer, Master Servicer or Trustee with respect to such Mortgage
     Loan;

          (iii)     the Class B-5 Prepayment Percentage of (a) the aggregate Net
     Liquidation Proceeds (other than Net Partial Liquidation Proceeds) of any
     such Mortgage Loan that became a Liquidated Loan in the month preceding the
     month of such Distribution Date (excluding the portion thereof, if any,
     constituting Net Foreclosure Profits) less the sum of (A) any unreimbursed
     Periodic Advances in respect of principal previously made by the Servicer,
     the Master Servicer or the Trustee with respect to such Liquidated Loan and
     (B) the portion of the Net Liquidation Proceeds allocable to interest and
     (b) the aggregate Net Partial Liquidation Proceeds on any such Mortgage
     Loan received by the related Servicer during the related Partial
     Liquidation Receipt Period, less the sum of (A) the amounts allocable to
     principal of any unreimbursed Periodic Advances previously made by such
     Servicer, the Master Servicer or the Trustee and (B) the portion of the Net
     Partial Liquidation Proceeds allocable to interest;

          (iv) the Class B-5 Prepayment Percentage of the Scheduled Principal
     Balance of such Mortgage Loan if such Mortgage Loan was the subject of a
     Prepayment in Full during the period from and including the Determination
     Date in the month preceding the month of such Distribution Date up to (but
     not including) the Determination Date;

          (v)  the Class B-5 Prepayment Percentage of all partial principal
     prepayments received on or after the Determination Date occurring in the
     month preceding the month in which such Distribution Date occurs and prior
     to the Determination Date occurring in the month in which such Distribution
     Date occurs; and

          (vi) the Class B-5 Prepayment Percentage of 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, less the amount allocable to the principal portion of any
     unreimbursed Periodic Advances previously made by the Servicer, the Master
     Servicer or the Trustee 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.


                                      I-23
<PAGE>


          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)
and (b) the Realized Losses previously allocated 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 AP 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).

          CLASS M CERTIFICATE:  Any one of the Certificates executed by the
Trustee and authenticated by the Trustee 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.


                                      I-24
<PAGE>


          CLASS M DISTRIBUTION AMOUNT:  As to any Distribution Date, the
aggregate amount distributable to the Class M Certificates pursuant to
Paragraphs FIFTH, SIXTH, and SEVENTH of Section 4.01(a) on such Distribution
Date.

          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 pursuant to Paragraph FIFTH of Section 4.01(a).

          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 Classes A/M/B 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 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, net of any
     unreimbursed Periodic Advances in respect of principal previously made by
     the Servicer, Master Servicer or Trustee with respect to such Mortgage
     Loan;

          (iii)     the Class M Prepayment Percentage of (a) the aggregate Net
     Liquidation Proceeds (other than Net Partial Liquidation Proceeds) of any
     such Mortgage Loan that became a Liquidated Loan in the month preceding the
     month of such Distribution Date (excluding the portion thereof, if any,
     constituting Net Foreclosure Profits) less the sum of (A) any unreimbursed
     Periodic Advances in respect of principal previously made by the Servicer,
     the Master Servicer or the Trustee with respect to such Liquidated Loan and
     (B) the portion of the Net Liquidation Proceeds allocable to interest and
     (b) the aggregate Net Partial Liquidation Proceeds on any such Mortgage
     Loan received by the related Servicer during the related Partial
     Liquidation Receipt Period, less the sum of (A) the amounts allocable to
     principal of any unreimbursed Periodic Advances previously made by such
     Servicer, the Master Servicer or the Trustee and (B) the portion of the Net
     Partial Liquidation Proceeds allocable to interest;


                                      I-25
<PAGE>


          (iv) the Class M Prepayment Percentage of the Scheduled Principal
     Balance of such Mortgage Loan if such Mortgage Loan was the subject of a
     Prepayment in Full during the period from and including the Determination
     Date in the month preceding the month of such Distribution Date up to (but
     not including) the Determination Date;

          (v)  the Class M Prepayment Percentage of all partial principal
     prepayments received on or after the Determination Date occurring in the
     month preceding the month in which such Distribution Date occurs and prior
     to the Determination Date occurring in the month in which such Distribution
     Date occurs; and

          (vi) the Class M Prepayment Percentage of 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, less the amount allocable to the principal portion of any
     unreimbursed Periodic Advances previously made by the Servicer, the Master
     Servicer or the Trustee 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, ___% per
annum.

          CLASS M PERCENTAGE:  As to any Distribution Date, the percentage
calculated by multiplying the Subordinated Percentage by either (a) if the 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 the 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


                                      I-26
<PAGE>


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) and (B)
as a result of a Principal Adjustment and (b) the Realized Losses previously
allocated 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 sum of the
Class A Principal Balance and the Class AP 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).

          CLASSES A/M/B FRACTION:  With respect to any Mortgage Loan, the
quotient obtained by dividing the Net Mortgage Interest Rate for such Mortgage
Loan by ___%.

          CLASSES A/M/B VOTING INTEREST:  The ratio obtained by dividing the
Pool Balance (Classes A/M/B Portion) by the sum of the Pool Balance (Classes
A/M/B Portion) and the Pool Balance (Class AP Portion).

          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 11.24.

          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.

          CORPORATE TRUST OFFICE:  The principal office of the Trustee at which
at any particular time its corporate trust business shall be administered, which
office at the date of the execution of this instrument is located at
______________________________________.


                                      I-27
<PAGE>


          CROSS-OVER DATE:  The first Distribution Date with respect to which
the Class A Percentage (determined pursuant to clause (ii) of the definition
thereof) equals or exceeds 100%.

          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) 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) 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 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 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 Class B Subclass Principal Balances of the Class B-4 and Class B-5
Certificates by the sum of the Class A 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 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 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) on such Distribution Date.


                                      I-28
<PAGE>


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

          CURTAILMENT INTEREST SHORTFALL: On any Distribution Date which occurs
on or after the Cross-Over Date, the amount of interest, if any, that would have
accrued on the amount of any Curtailment with respect to a Mortgage Loan that
was received on or after the Determination Date in the month preceding the month
in which such Distribution Date occurs but prior to the first day of the month
in which such Distribution Date occurs at the Net Mortgage Interest Rate for
such Mortgage Loan from the date of application of such Curtailment through the
last day of the month in which received.

          CUSTODIAL AGREEMENT:  The Custodial Agreement, if any, from time to
time in effect between the Custodian named therein, a Servicer and the Trustee,
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 relating to six of the
Servicers), the Master Servicer shall require that any such account shall be
acceptable to each of the Rating Agencies.

          CUSTODIAN:  Initially, the Trustee, and thereafter the Custodian, if
any, hereafter appointed by the Trustee pursuant to Section 8.13, or its
successor in interest under the Custodial Agreement.  The Custodian may (but
need not) be the Trustee or any Person directly or indirectly controlling or
controlled by or under common control with it.  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 Principal Prepayments 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.

          [DCR:  Duff & Phelps Credit Rating Co., or its successor in interest.]


                                      I-29
<PAGE>


          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 5.07.

          DENOMINATION:  The amount, if any, specified on the face of each
Certificate representing the principal portion of the Cut-Off Date Aggregate
Principal Balance 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 ___%.

          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 Trustee, such that the Trustee, 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


                                      I-30
<PAGE>


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 a REMIC or
result in the imposition of any federal tax on the 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;


                                      I-31
<PAGE>


          (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 PLAN:  Any Person which is an employee benefit plan within the
meaning of Section 3(3) of ERISA.

          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


                                      I-32
<PAGE>


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.

          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) ___%,
(b) the Servicing Fee Rate, (c) the Master Servicing Fee Rate and (d) the
Trustee Fee Rate, which will be determined on a


                                      I-33
<PAGE>


loan by loan basis and will equal the Mortgage Interest Rate on each Mortgage
Loan minus the sum of (a), (b), (c) and (d), 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) ___%, (ii) the Servicing Fee Rate,
(iii) the Master Servicing Fee Rate and (iv) the Trustee 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 (other than Net Partial Liquidation Proceeds) in
respect of each Mortgage Loan that became a Liquidated Loan during the month
preceding the month in which such Distribution Date occurs 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 following the month in which such Mortgage Loan
became a Liquidated Loan.

          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 $_____________ minus the aggregate amount of Fraud 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, 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 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 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.

          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, partner, director or person performing similar functions.


                                      I-34
<PAGE>


          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 prior to the Due Date preceding 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 in which such Mortgage Loan became a Liquidated Loan, over
(ii) Net Liquidation Proceeds (other than Net Partial 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 Trustee 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


                                      I-35
<PAGE>


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.

          MASTER SERVICER:  Norwest Bank Minnesota, National Association, or any
successor master servicer appointed as herein provided.

          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 11.11.

          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).

          [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 Trustee on the Closing Date as part of the Trust Estate and attached hereto
as Exhibit F, 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 as 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;


                                      I-36
<PAGE>


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

        (xiv)  the Servicing Fee Rate;

         (xv)  Fixed Retained Yield, if applicable;

        (xvi)  the name of the Servicer with respect thereto; and

       (xvii)  the name of the Norwest Mortgage Loan Seller with respect
               thereto, if applicable.

          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 Trustee 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.


                                      I-37
<PAGE>


          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 on Exhibit F with respect to
such Mortgage Loan, (b) the Master Servicing Fee Rate, as set forth in Section
11.11, (c) the Trustee Fee Rate as set forth in Section 11.29 and (d) 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).

          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 Trustee, as
the case may be, and which the Servicer or the Master Servicer or the Trustee
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 Trustee (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 Trustee or, in the case
of a Master Servicer or Trustee determination, an Officer's Certificate of the
Master Servicer or the Trustee delivered to the Trustee, in each case detailing
the reasons for such determination.

          NON-SUPPORTED INTEREST SHORTFALL:  With respect to any Distribution
Date, the sum of the excess, if any, with respect to the Mortgage Loans serviced
under each of the respective Servicing Agreements, of the aggregate Prepayment
Interest Shortfall on such Mortgage Loans over the aggregate Servicing Fee owed
under such Servicing Agreement with respect to such Distribution Date.  With
respect to each Distribution Date occurring on or after


                                      I-38
<PAGE>


the Cross-Over Date, the Non-Supported Interest Shortfall as determined pursuant
to the preceding sentence shall be increased by the Curtailment Interest
Shortfall and the Partial Liquidation Interest Shortfall, if any, for such
Distribution Date.

          NON-U.S. PERSON:  As defined in Section 4.01(g).

          NORWEST MORTGAGE:  Norwest Mortgage, Inc.

          NORWEST MORTGAGE LOAN SELLERS:  The entities listed on the Mortgage
Loan Schedule, from which Norwest Mortgage purchased the Mortgage Loans.

          NORWEST MORTGAGE SERVICING AGREEMENT:  The Servicing Agreement dated
_______________, 1996 by and between Norwest Mortgage and Norwest Bank
Minnesota, National Association providing for the servicing of certain 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.

          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; 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) any Class A Subclass Principal Balance
or Class AP Principal Balance would be subject to further reduction as a result
of the third sentence of the definition of Class A Subclass Principal Balance or
Class AP Principal Balance or, 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.


                                      I-39
<PAGE>


          ORIGINAL CLASS A PRINCIPAL BALANCE:  The sum of the Original Class A
Subclass Principal Balances of each Class A Subclass, as set forth in Section
11.06.

          ORIGINAL CLASS A SUBCLASS PRINCIPAL BALANCE:  Any of the Original
Class A Subclass Principal Balances as set forth in Section 11.05.

          ORIGINAL CLASS AP PRINCIPAL BALANCE:  The Original Class AP Principal
Balance, 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 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 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


                                      I-40
<PAGE>


Original Class B-5 Principal Balance by the sum of the Original Class A
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 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 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 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 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 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 11.10.

          ORIGINAL CLASS M PERCENTAGE:  The Class M Percentage as of the Cut-Off
Date, as set forth in Section 11.08.

          ORIGINAL CLASS M PRINCIPAL BALANCE:  The Class M Principal Balance as
of the Cut-Off Date, as set forth in Section 11.09.

          ORIGINAL SUBORDINATED PERCENTAGE:  The Subordinated Percentage as of
the Cut-Off Date, as set forth in Section 11.23.

          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 Mortgage Servicing Agreement.


                                      I-41
<PAGE>


          OUTSTANDING MORTGAGE LOAN:  As to any Due Date, a Mortgage Loan
(including an REO Mortgage Loan) which was not the subject of a Prepayment in
Full prior to such Due Date, which did not become a Liquidated Loan 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 Trustee (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:  The Class A-1 Certificates.

          PAC PRINCIPAL AMOUNT:  As defined in Section 4.01(b).

          PARTIAL LIQUIDATION INTEREST SHORTFALL:  On any Distribution Date
which occurs on or after the Cross-Over Date, the amount of interest, if any,
that would have accrued on the amount of any Partial Liquidation Proceeds with
respect to a Mortgage Loan that was received on or after the Determination Date
in the month preceding the month in which such Distribution Date occurs but
prior to the first day of the month in which such Distribution Date occurs at
the Net Mortgage Interest Rate for such Mortgage Loan from the date of
application of such Partial Liquidation Proceeds through the last day of the
month in which received.

          PARTIAL LIQUIDATION PROCEEDS:  Liquidation Proceeds received prior to
the month in which the related Mortgage Loan became a Liquidated Loan.

          PARTIAL LIQUIDATION RECEIPT PERIOD:  As to any Distribution Date and
any Mortgage Loan, the period from and including the Determination Date
occurring in the month preceding the month of such Distribution Date (or, in the
case of the first Distribution Date, from and including the Cut-Off Date) to but
not including the Determination Date occurring in the month of such Distribution
Date.

          PAYING AGENT:  The Person authorized on behalf of the Trustee, 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. 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, 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


                                      I-42
<PAGE>


respect to a Class AP 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 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 Trustee 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 Trustee 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
Trustee, as the case may be and (z) have not been determined by the Master
Servicer, such Servicer or Trustee 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.

          PLAN:  As defined in Section 5.02(c).

          POOL BALANCE (CLASSES A/M/B 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 Classes A/M/B Fraction for such Mortgage Loan and
(ii) the Scheduled Principal Balance of such Mortgage Loan.

          POOL BALANCE (CLASS AP 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 Class AP 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, Principal Prepayments, Net
REO Proceeds, Insurance Proceeds, Liquidation Proceeds, the proceeds of any
repurchase of a Mortgage Loan by the Seller and any Substitution Principal
Amount)


                                      I-43
<PAGE>


received by the Master Servicer on or prior to the Remittance Date in the month
of 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 Trustee 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 Remittance Date or by the Master Servicer or the Trustee 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 Trustee 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 Trustee;

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

               (d)  the Amount Held for Future Distribution;

               (e)  that portion of Liquidation Proceeds, Insurance Proceeds and
     REO Proceeds which represents any unpaid Master Servicing Fee or Trustee
     Fee;

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

               (g)  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 (f) above, or not required to be deposited
     in the Certificate Account under this Agreement;

               (h)  Net Foreclosure Profits; and

               (i) the amount of any recoveries in respect of principal which
     had previously been allocated as a loss to one or more Classes or
     Subclasses of 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.

          PREPAYMENT IN FULL:  With respect to any Mortgage Loan, a 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


                                      I-44
<PAGE>


Prepayment in Full at the Net Mortgage Interest Rate for such Mortgage Loan from
the date of its Prepayment in Full, through the last day of the month in which
such Prepayment in Full occurred.

          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 Subclass.

          PRINCIPAL PREPAYMENT:  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, all
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.

          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 Agenc[y][ies] for the Class A Certificates, Class AP
Certificates and Class M Certificates [is][are] [Fitch][DCR][Moody's][S&P].  The
Rating Agenc[y][ies] for the Class B-1, Class B-2, Class B-3 and Class B-4
Certificates [is][are] [Fitch][DCR][Moody's][S&P].  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 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, A-1+ in the case of S&P 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 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.


                                      I-45
<PAGE>


          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 (with respect to proposed
regulations, are proposed to be in effect) from time to time.

          REMITTANCE DATE:  The 18th day of each month or, if such day is not a
Business Day, the preceding Business Day.

          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, 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 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.

          [S&P:  Standard & Poor's, or its successor in interest.]

          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


                                      I-46
<PAGE>


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)
Principal Prepayments received prior to such Due Date, (B) Deficient Valuations
incurred prior to such Due Date, (C) any Curtailments and Net Partial
Liquidation Proceeds applied by the Servicer in reduction of the unpaid
principal balance of such Mortgage Loan as of such Due Date, (D) the payment of
principal due on such Due Date and irrespective of any delinquency in payment by
the related Mortgagor and (E) any Principal Prepayments in Full received prior
to the Determination Date in the month of such Due Date.  Accordingly, the
Scheduled Principal Balance of a Mortgage Loan which becomes a Liquidated Loan
prior to such Due Date shall be zero.

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

          SENIOR OPTIMAL AMOUNT:  As to any Distribution Date, the sum for such
Distribution Date of (a) the Class A Optimal Amount and (b) the Class AP Optimal
Principal Amount.

          SERVICER MORTGAGE LOAN FILE:  As defined in each of the Servicing
Agreements.

          SERVICERS:  Each of Norwest Mortgage and [other servicers].

          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 on
Exhibit F.

          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 11.27.

          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;


                                      I-47
<PAGE>


     (2)  infidelity, conversion or other dishonest act on the part of the
          Trustee, 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 $____________ 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, other than the Class B-5 Certificates, as evidenced
by letters to that effect delivered by Rating Agencies to the Master Servicer
and the Trustee.  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 and Class
A-R 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.


                                      I-48
<PAGE>


          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.

          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.

          TAC CERTIFICATES:  The Class A-2 Certificates.

          TAC PRINCIPAL AMOUNT:  As defined in 4.01(b).

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

          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 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:  [Trustee], or any successor trustee appointed as herein
provided.

          TRUSTEE 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.

          TRUSTEE FEE RATE:  As set forth in Section 11.29.

          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


                                      I-49
<PAGE>


entitled to the Class A Voting Interest, (b) the Holders of the Class AP
Certificates will collectively be entitled to a percentage of the aggregate
Voting Interest represented by all Certificates equal to the percentage obtained
by dividing the Pool Balance (Class AP Portion) by the sum of the Pool Balance
(Classes A/M/B Portion) and the Pool Balance (Class AP Portion), (c) 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 Principal Balance, the Class M Principal
Balance and the Class B Principal Balance and (ii) the Classes A/M/B Voting
Interest and (d) the Holders of the Class B Certificates will collectively be
entitled to the balance of the aggregate Voting Interest represented by all
Series 199_-__ Certificates.  The aggregate Voting Interests of each Subclass of
Class A Certificates on any date will be equal to the product of (a) the Class A
Voting Interest on such date and (b) the fraction obtained by dividing the Class
A Subclass Principal Balance of such Subclass on such date by the Class A
Principal Balance on such date.  The aggregate Voting Interests of each Subclass
of Class B Certificates will equal such Subclass' pro rata portion of the Voting
Interest allocated to the Class B Certificates based on such Subclass'
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.  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, 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


                                      I-50
<PAGE>


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 and the Authenticating Agent)
shall be proved by the Certificate Register, and neither the Trustee, 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
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.


                                      I-51
<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 Principal Prepayments
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 Trustee, 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 Trustee 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 Loan Seller 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
Trustee promptly following its recordation.  The Seller shall also cause to be
delivered to the Trustee 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 Trustee the assignment of the Mortgage Loan from the Seller to
the Trustee in a form suitable for recordation, together with an Opinion of
Counsel (of which [S&P] will be an addressee or with respect to which [S&P]
shall be delivered a reliance letter) 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 Trustee and the Trustee shall within five
Business Days (or such other reasonable period of time mutually agreed upon by
the Master Servicer and the Trustee) of its receipt of such notice deliver each
previously unrecorded assignment to the related Servicer for recordation.



<PAGE>


          Section 2.02.  ACCEPTANCE BY TRUSTEE.  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
Trustee 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 Trustee 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 Trustee 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 Trustee shall promptly notify the Seller,
which shall have a period of 60 days after 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 Trustee'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 Trustee 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 of such Mortgage Loan
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 3.02.  In the case of a substitute
Mortgage Loan, the Mortgage File relating thereto shall be delivered to the
Trustee 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 Trustee 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 Trustee of written notification of any such deposit signed


                                      II-2
<PAGE>


by an officer of the Seller, or the new Mortgage File, as the case may be, the
Trustee shall release to the Seller the related Mortgage 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 or the Trustee
on behalf of the Certificateholders. The failure of the Trustee 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 Trustee 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 Trustee appoints a Custodian to
hold the Mortgage Notes, the Mortgages, the assignments and other documents
related to the Mortgage Loans received by the Trustee, 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 for the benefit of Certificateholders that, as of the date of execution
of this Agreement:

          (i)  The Master Servicer is a corporation duly formed and validly
existing under the laws of the State of New Jersey;

          (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 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


                                      II-3
<PAGE>


          (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 Trustee or the Custodian.

          (b) The Seller hereby represents and warrants to the Trustee 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 Trustee 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 Trustee or the Custodian
     pursuant to Section 2.01;


                                      II-4
<PAGE>


         (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 Trustee 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;


                                      II-5
<PAGE>


        (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 13 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


                                      II-6
<PAGE>


     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 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
     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


                                      II-7
<PAGE>


     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 360
     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 absence or effect of hazardous wastes or hazardous
substances on any of the Mortgaged Properties or on the lien of any Mortgage.
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 Trustee and shall inure to the benefit of the
Trustee notwithstanding any restrictive or qualified endorsement or assignment.


          (c)  Upon discovery by either the Seller, the Master Servicer, the
Trustee 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 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 Trustee 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


                                      II-8
<PAGE>


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, or to 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 Trustee
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, has
executed and delivered to or upon the order of the Seller, in exchange for the
Mortgage Loans together with all other assets included in the definition of
"Trust Estate," receipt of which is hereby acknowledged, Certificates in
authorized denominations which 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 Certificate), the Class AP
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 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 the REMIC within the meaning of Code Section
860G(a)(9).  The "latest possible maturity date" of the regular interests in the
REMIC is __________, 20__ for purposes of Code Section 860G(a)(1).


                                      II-9
<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 Trustee, 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 or
     the Seller 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
the Trust Estate 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



<PAGE>


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 Trustee or any Servicer for
     Periodic Advances made by the Master Servicer or the Trustee 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, Insurance 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 Trustee 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 or Insurance 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 and the Trustee Fee with respect to
     such Mortgage Loan to the Master Servicer and the Trustee, respectively;

          (v)  to reimburse the Master Servicer, any Servicer or the Trustee
     (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;

         (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;


                                      III-2
<PAGE>


       (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, any Servicer or the Trustee out of
     Net Liquidation Proceeds allocable to interest the amount of any unpaid
     Master Servicing Fee, Servicing Fee (as adjusted pursuant to such
     Servicer's Servicing Agreement) or Trustee Fee 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 TRUSTEE.  (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 Trustee
Servicer shall, to the extent required by Section 8.15, make such Periodic
Advance to the extent provided hereby.  The Master Servicer shall certify to the
Trustee 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 Trustee 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 Trustee or Master Servicer
shall be deposited in the Certificate Account on


                                      III-3
<PAGE>


the related Distribution Date.  Notwithstanding the foregoing, neither the
Master Servicer nor the Trustee will be obligated to make a Periodic Advance
that it reasonably believes to be a Nonrecoverable Advance.  The Trustee 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 Section 17.3 of 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 Section 17.3 of the Norwest Servicing Agreement, the
Master Servicer shall, if the Master Servicer knows of such failure of Norwest
Mortgage, certify to the Trustee that such failure has occurred.  Upon receipt
of such certification, the Trustee shall advance such funds and take such steps
as are necessary to pay such taxes or insurance premiums.

          (c)  The Master Servicer and the Trustee 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) or with
respect to any such Periodic Advance which the Master Servicer or the Trustee
shall ultimately determine in its good faith judgment to be a Nonrecoverable
Advance from funds generally available in the Certificate Account.  The Master
Servicer and the Trustee 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.

          (d)  Except as provided in Section 3.03(a) and (b), neither the Master
Servicer nor the Trustee 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.  TRUSTEE 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 Trustee 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 Trustee.  The
Trustee 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


                                      III-4
<PAGE>


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 Trustee and the Trustee 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
Trustee 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 Trustee 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 Trustee to the Master Servicer
or such Servicer, as appropriate.

          Upon written certification of the Master Servicer or the Servicer of
such Mortgage Loan, the Trustee 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 Trustee and a statement as to the reason such documents or
pleadings are required and that the execution and delivery thereof by the
Trustee will not invalidate or otherwise affect the lien of the Mortgage, except
for the termination of such a lien upon completion of the foreclosure proceeding
or trustee's sale.

          Section 3.05.  REPORTS TO THE TRUSTEE; ANNUAL COMPLIANCE STATEMENTS.
(a)  Not later than 15 days after each Distribution Date, the Master Servicer
shall deliver to the Trustee 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


                                      III-5
<PAGE>


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 Trustee to any Certificateholder upon written
request, provided such statement is delivered, or caused to be delivered, by the
Master Servicer to the Trustee.

          (b)  The Master Servicer shall deliver to the Trustee on or before
April 30 of each year, an Officers' 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) an officer of the Master Servicer has conducted an examination of the
activities of the Servicers during the preceding calendar year and their
performance under the Servicing Agreements, (B) an officer of the Master
Servicer has examined the Servicers' Fidelity Bond and Errors and Omissions
Policies and each such bond or policy is in effect and conforms to the
requirements of the applicable Servicing Agreement, (C) the Master Servicer has
received from each Servicer any required financial statements and such other
information as is required by such Servicer's Servicing Agreement and (D) to the
best of such officer's knowledge, based on such examination, each Servicer has
performed and fulfilled its duties, responsibilities and obligations under its
Servicing Agreement in all material respects throughout such year, or, if there
has been a default in the performance or 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 Officer's Certificate
shall be provided by the Trustee to any Certificateholder upon written request
provided such certificate is delivered, or caused to be delivered, by the Master
Servicer to the Trustee.

          (c)  Each year the Master Servicer shall review each Servicer's
performance under its Servicing Agreement and the status of any fidelity bond
and errors and omissions policy required to be maintained by such Servicer under
its Servicing Agreement.

          Section 3.06.  TITLE, MANAGEMENT AND DISPOSITION OF ANY REO MORTGAGE
LOAN.  In the event that a Servicer is unable to dispose of any REO Mortgage
Loan within the period mandated by Section 14.4.2 of 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 Trustee
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


                                      III-6
<PAGE>


purchaser title to the REO Mortgage Loan and the Trustee shall have no further
responsibility with regard to such Owner Mortgage Loan File or Servicer Mortgage
Loan File.  Neither the Trustee, the Master Servicer nor any Servicer, acting on
behalf of the Trust Estate, shall provide financing from the Trust Estate to any
purchaser of REO Mortgage Loan.

          Section 3.07.  AMENDMENTS TO SERVICING AGREEMENTS, MODIFICATION OF
STANDARD PROVISIONS. (a) Subject to the prior written consent of the Trustee
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 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 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 an adverse effect on Certificateholders may be
established through various means, including the delivery to the Trustee 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.  The Trustee 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.

          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 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


                                      III-7
<PAGE>


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 Trust Estate of REMIC status
for federal income tax purposes or (iii) the imposition of any Prohibited
Transaction Tax or any federal taxes on the 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 Trustee 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.  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 Trustee 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 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 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.


                                      III-8
<PAGE>


          The Master Servicer or 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 Master Servicer's or
Seller's judgment, the default is not likely to be cured by the Mortgagor.  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 Trustee the
certification required by Section 3.04 and the Trustee and the Custodian, if
any, shall promptly release to the Master Servicer or 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 Trustee 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
Trustee shall have no further responsibility with regard to such Owner Mortgage
Loan File or Servicer Mortgage Loan File.  Neither the Trustee, nor the Master
Servicer nor any Servicer, acting on behalf of the Trustee, shall provide
financing from the Trust Estate to any purchaser of a Mortgage Loan.

          The Master Servicer, on behalf of the Trustee, 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 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


                                      III-9
<PAGE>


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 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.

          The Master Servicer 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 termination of such Servicing Agreement
at the direction of the Master Servicer.  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 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 pursuant to the Securities Exchange Act of 1934, as
amended.


                                     III-10
<PAGE>


                                   ARTICLE IV



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

          Section 4.01.  DISTRIBUTIONS.    (a)      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 upon
their respective Class A Subclass Interest Accrual Amounts, in an aggregate
amount up to the Class A Interest Accrual Amount;

          SECOND, to the Subclasses of Class A Certificates, pro rata, based
upon their respective Class A Subclass Unpaid Interest Shortfalls in an
aggregate amount up to the Class A Unpaid Interest Shortfall;

          THIRD, concurrently, to the Class A and Class AP Certificates, pro
rata based on their respective Class A Optimal Principal Amount and Class AP
Optimal Principal Amount, (A) to the Subclasses of Class A Certificates, in an
aggregate amount up to the Class A 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 AP Certificates up to the
Class AP Optimal Principal Amount;

          FOURTH, to the Class AP Certificates in an amount up to the Class AP
Deferred Amount first 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 and fifth to the Class B-1 Certificates pursuant to Paragraph
TENTH below and then from amounts otherwise distributable (without regard to
this paragraph FOURTH) 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;

          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



<PAGE>


would have been distributable to the Class M Certificates hereunder used to pay
the Class AP 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 AP 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 AP 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 AP 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;


                                      IV-2
<PAGE>


          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 AP Deferred Amount as provided
in Paragraph FOURTH above;

          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 AP Deferred Amount
as provided in Paragraph FOURTH above; and

          TWENTY-THIRD, to the Holder of the Class A-R Certificate.

          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-R
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 and 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 pro rata based on Class A
Subclass Principal Balance.

          (b)  On each Distribution Date occurring prior to the Cross-Over Date,
the Class A Principal Distribution Amount shall be allocated among and
distributed, pursuant to Section 4.01(e) hereof, in reduction of the principal
balances of the Subclasses of Class A Certificates as follows:



          [INSERT DISTRIBUTION PRIORITIES



          As used above, the "PAC Principal Amount" for any Distribution Date
and for the 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.


                                      IV-3
<PAGE>


          As used above, the "TAC Principal Amount" for any Distribution Date
and for the TAC 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 and the targeted
Class A Subclass Principal Balance of the TAC Certificates, each expressed as a
percentage of the initial Class A Subclass Principal Balance.


                                      IV-4
<PAGE>


            PLANNED CLASS A SUBCLASS PRINCIPAL BALANCE AS PERCENTAGE
    OF THE INITIAL CLASS A SUBCLASS PRINCIPAL BALANCE OF THE PAC CERTIFICATES

                                             PERCENTAGE OF
                                             INITIAL CLASS A SUBCLASS
DISTRIBUTION DATE                            PRINCIPAL BALANCE















           TARGETED CLASS A SUBCLASS PRINCIPAL BALANCE AS PERCENTAGE
    OF THE INITIAL CLASS A SUBCLASS PRINCIPAL BALANCE OF THE TAC CERTIFICATES

                                                  PERCENTAGE OF
                                                  INITIAL CLASS A SUBCLASS
DISTRIBUTION DATE                                 PRINCIPAL BALANCE



                                      IV-5
<PAGE>

          (c)  On each Distribution Date occurring on or subsequent to the
Cross-Over Date, the Class A Principal Distribution Amount shall be distributed
among the Subclasses of Class A Certificates pro rata in accordance with their
outstanding Class A Subclass Principal Balances.

          (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 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


                                      IV-6
<PAGE>


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 Balance 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)  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 Master Servicer), 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 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(e) 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 11.26, 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 the aggregate of the
Percentage Interests represented by Certificates of the applicable Subclass or
Class of Certificates held by such Holder) of the Class A Subclass Distribution
Amount with respect to each Subclass of Class A Certificates, the Class AP
Distribution Amount with respect to the Class AP 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-R Certificate), the Class AP
Principal Balance of the Class AP Certificates, the Class M Principal Balance of
the Class M Certificates or the Class B Subclass Principal Balance of


                                      IV-7
<PAGE>


any Subclass of Class B Certificates 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 Trustee.  The Trustee will then
send a notice to each Certificateholder of such Subclass or Class with a copy to
the Certificate Registrar, specifying that the final distribution with respect
to such 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 Trustee 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).

          (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.  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, or an estate or trust that is subject to U.S. 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


                                      IV-8
<PAGE>


          SEVENTH, to the Class A and Class AP Certificates pro rata based on
the Classes A/M/B Fraction and the Class AP Fraction, respectively.

          This allocation of Realized Losses will be effected through the
reduction of the applicable Subclass 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 AP
Certificates will equal the product of the amount of any such principal loss and
the Class AP 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 AP Certificates in accordance with the
preceding sentence shall be allocated pro rata among the Class A, Class M and
Class B Certificates based on the Class A Principal Balance, the Class M
Principal Balance and the Class B Principal Balance.  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 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 AP Certificates or 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 AP Certificates, the
Class M Certificates or any Subclasses of Class B Certificates, each outstanding
Subclass or Class to which such Realized Loss had previously been allocated
shall be entitled to its share (with respect to the Class AP Certificates, based
on the Class AP Fraction of such Mortgage Loan and, with respect to the Class A
Certificates, Class M Certificates and Class B Certificates, based on their pro
rata share of the Classes A/M/B Fraction of such Mortgage Loan) of such recovery
up to the amount of such Realized Loss previously allocated to such Subclass or
Class on the Distribution Date in the month following the month in which such
recovery is received.  A Subclass or Class of Certificates that is no longer
outstanding 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 Subclass or Class in accordance with the preceding
provisions, each outstanding Subclass or Class 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 Subclass or Class .

          (e)  The interest portion of Excess Special Hazard Losses, Excess
Fraud Losses and Excess Bankruptcy Losses shall be allocated among the Class A
Certificates, the


                                      IV-9
<PAGE>


Class M Certificates and the 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.  Any such loss
allocated to the Class A Certificates shall be allocated among the outstanding
Subclasses of Class A 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 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.

          Section 4.03   PAYING AGENT.  (a)  The Master Servicer hereby appoints
the Trustee 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
Trustee to execute and deliver to the Trustee an instrument in which such Paying
Agent agrees with the Trustee 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 Trustee 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 Trustee, forthwith pay to the Trustee 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,


                                      IV-10
<PAGE>


(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 Trustee, 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 TRUSTEE
AND THE SELLER.  Concurrently with each distribution pursuant to Section
4.01(e), 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 Principal Prepayments 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 AP
     Certificates, identifying the aggregate amount of any Principal Prepayments
     included therein;

           (iv)  the amount of such distribution to Holders of the Class M
     Certificates allocable to principal, separately identifying the aggregate
     amount of any Principal Prepayments included therein;

            (v)  (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


                                      IV-11
<PAGE>


     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;

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

          (vii)  (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;

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

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

            (x)  the Class A Principal Balance, the Class A Subclass Principal
     Balance of each Subclass of Class A Certificates, the Class AP Principal
     Balance, 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;

           (xi)  the Adjusted Pool Amount, the Adjusted Pool Amount (Class AP
     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;

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

         (xiii)  the Class A Percentage for the following Distribution Date
     (without, giving effect to Curtailments and Net Partial Liquidation
     Proceeds received after the


                                      IV-12
<PAGE>


     Determination Date in the current month which are applied as of the Due
     Date occurring in such month);

          (xiv)  the Class A Prepayment Percentage for the following
     Distribution Date (without giving effect to Curtailments and Net Partial
     Liquidation Proceeds received after the Determination Date in the current
     month which are applied as of the Due Date occurring in such month);

           (xv)  the Class M Percentage for the following Distribution Date
     (without giving effect to Curtailments and Net Partial Liquidation Proceeds
     received after the Determination Date in the current month which are
     applied as of the Due Date occurring in such month);

          (xvi)  the Class M Prepayment Percentage for the following
     Distribution Date (without giving effect to Curtailments and Net Partial
     Liquidation Proceeds received after the Determination Date in the current
     month which are applied as of the Due Date occurring in such month);

         (xvii)  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
     Curtailments and Net Partial Liquidation Proceeds received after the
     Determination Date in the current month which are applied as of the Due
     Date occurring in such month);

        (xviii)  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 Curtailments and Net Partial Liquidation Proceeds received after
     the Determination Date in the current month which are applied as of the Due
     Date occurring in such month);

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

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

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

         (xxii)  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;

        (xxiii)  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;


                                      IV-13
<PAGE>


         (xxiv)  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;

          (xxv)  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;

         (xxvi)  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;

        (xxvii)  the amount of the aggregate Servicing Fees, Master Servicing
     Fees, and Trustee Fees paid (and not previously reported) with respect to
     the related Distribution Date and the amount by which the aggregate
     Servicing Compensation has been reduced by the Prepayment Interest
     Shortfall or Curtailment Interest Shortfall for the related Distribution
     Date;

       (xxviii)  the Class AP 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

deliver a copy of each type of statement to the Trustee, 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 Class A
Subclass pursuant to clauses (i) and (ii) above, with respect to the Class AP
Certificates pursuant to clause (iii) above, with respect to the Class M
Certificates pursuant to clauses (iv) and (v) above and with respect to a Class
B Subclass pursuant to clauses (vi) and (vii) above, the amounts shall be
expressed as a dollar amount per Class A Certificate with a $1,000 Denomination,
and as a dollar amount per Class B Certificate with a $1 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 contained in clause
(iii) above in the case of a Class AP Certificateholder, the information
contained in clauses (iv) and (v)(a) above in the case of a Class M
Certificateholder and the information contained in clauses (vi) and (vii)(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.


                                      IV-14
<PAGE>


          Prior to the close of business on the third Business Day preceding
each Distribution Date, the Master Servicer shall furnish a statement to the
Trustee, 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 AP Distribution Amount, 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 Trustee 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 B-3, Class B-4 or Class B-5 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 Trustee 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).


                                      IV-15
<PAGE>


                                    ARTICLE V



                                THE CERTIFICATES

          Section 5.01.  THE CERTIFICATES. (a) The Class A, Class AP, Class M
and Class B Certificates shall be issued only in minimum denominations of a
Single Certificate and, except for the Class A-R and Class B Certificates,
integral multiples of $1,000 (or $1 in the case of the Class AP Certificates and
Class B-5 Certificates) in excess thereof (except, if necessary, for one
Certificate of each Subclass (other than the Class A-R Certificate) that
evidences one Single Certificate plus such additional principal portion as is
required in order for all Certificates of such Subclass to equal the aggregate
Original Class A Subclass Principal Balance, Original Class AP Principal
Balance, Original Class M Principal Balance or the aggregate Original Class B
Subclass Principal Balance of such 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-R, B-1, B-2, B-3, B-4, B-5, C, C-1 and D (reverse side of Certificates)
hereto.  On original issue the Certificates shall be executed and delivered by
the Trustee to or upon the order of the Seller upon receipt by the Trustee or
the Custodian of the documents specified in Section 2.01.  The aggregate
principal portion evidenced by the Class A, Class AP, 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 Trustee by any Responsible Officer thereof.
Certificates bearing the manual or facsimile signatures of individuals who were
at any time the proper officers of the Trustee shall bind the Trustee
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Certificates or did not
hold such offices at the date of such Certificates.  No Certificate shall be
entitled to any benefit under this Agreement, or be valid for any purpose,
unless manually countersigned by a Responsible Officer of the Trustee, 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 Trustee 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."



<PAGE>


          (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 Trustee 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 Trustee at the Corporate Trust Office.


                                       V-2
<PAGE>


          Section 5.02.  REGISTRATION OF TRANSFER AND EXCHANGE OF CERTIFICATES.
(a)  The Trustee shall cause to be kept at one of the offices or agencies to be
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 Trustee shall provide for the registration of Certificates and of transfers
and exchanges of Certificates as herein provided.  The Trustee 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 Trustee 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 Trustee 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 Trustee) 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 Trustee 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 Trustee 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 from the date of the initial sale of Certificates, 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 Trustee and the
Seller, to the effect that such transfer may be made pursuant to an exemption,
describing the applicable exemption and the basis therefor,


                                       V-3
<PAGE>


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 Trustee, the Seller or the
Master Servicer, and (ii) the Trustee shall require the transferee to execute an
investment letter in the form of Exhibit J hereto certifying to the Seller and
the Trustee the facts surrounding such transfer, which investment letter shall
not be an expense of 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 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 Trustee
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, to the effect that either (a) such
transferee is not an employee benefit plan subject to the fiduciary
responsibility provisions of ERISA, or a governmental plan as defined in Section
3(32) of ERISA or Code Section 4975 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 any such Plan, which representation letter shall not be an
expense of 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, 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 (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,
an Opinion of Counsel satisfactory to the Trustee 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 and the Code or
Similar Law and will not subject 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 Trustee, the Seller or the
Master Servicer.  The Class M or 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 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.



                                       V-4
<PAGE>


Person that holds the Class A-R Certificate in connection with the conduct of a
trade or business within the United States and has furnished the transferor and
the Trustee 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 Trustee an
opinion of a nationally recognized tax counsel to the effect that the transfer
of the Class A-R 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 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 Trustee shall not execute, and
shall not authenticate (or cause the Authenticating Agent to authenticate) and
deliver, a new Class A-R 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 Trustee shall accept a surrender for
transfer or registration of transfer, or register the transfer of, the Class A-R
Certificate, unless the transferor shall have provided to the Trustee 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 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 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 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 Certificate 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 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
Certificate in constructive trust for the last transferor who was not a
disqualified


                                       V-5
<PAGE>


organization or agent thereof, and such transferor shall be restored as the
owner of such Class A-R 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 the Class A-R
Certificate, and (ii) the Master Servicer agrees to furnish to the Internal
Revenue Service and to any transferor of the Class A-R 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 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 Trustee or the
Authenticating Agent, or the Trustee 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 Trustee 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 Trustee or the  Authenticating
Agent that such Certificate has been acquired by a bona fide purchaser, the
Trustee 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 Trustee 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 Trustee 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 Certificate Registrar and any agent of the Seller, the Master
Servicer, the Trustee 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 Certificate Registrar nor any agent of the Seller, the Master Servicer, the
Trustee 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 Trustee is not acting as Certificate Registrar, the
Certificate Registrar shall furnish or cause to be furnished to the Trustee,
within 15 days after receipt by the Certificate Registrar of a request by the
Trustee in writing, a list, in such form as the Trustee may reasonably require,


                                       V-6
<PAGE>


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 Trustee, 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 Trustee 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
Trustee.  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 Trustee is not the Certificate
Registrar, the Trustee 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 and the
Trustee that neither the Seller, the Master Servicer, the Certificate Registrar
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 Trustee 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 Trustee 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 Trustee 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
Trustee 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 Trustee 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 Trustee 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 Trustee 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
Trustee shall execute and authenticate Definitive Certificates for delivery


                                       V-7
<PAGE>


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 nor the Trustee 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 Trustee shall give all such
notices and communications specified herein to be given to Holders of Book-Entry
Certificates to the Clearing Agency.



                                       V-8
<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 either 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



<PAGE>


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 AP, Class M and
Subclasses of 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
without the consent of the Trustee, 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.
No such resignation shall become effective until the Trustee 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 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 (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, in the exercise of its reasonable judgment, and executes and delivers
to the Trustee an agreement, in form and substance reasonably satisfactory to
the


                                      VI-2
<PAGE>


Trustee, 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 or the Seller under this Agreement, incurred by it prior to the time
that the conditions contained in clause (i) above are met.


                                      VI-3
<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; or



<PAGE>


         (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;

        (vii)  the Master Servicer and any subservicer appointed by it becomes
     ineligible to service for both FNMA and FHLMC, 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 662/3% of the
aggregate Voting Interest represented by all Certificates, by notice in writing
to the Master Servicer (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 Trustee pursuant
to and under this Section, subject to the provisions of Section 7.05; and,
without limitation, 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 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 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


                                      VII-2
<PAGE>


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 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 may, but need not if the Trustee 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, the Trustee 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.  TRUSTEE TO ACT; APPOINTMENT OF SUCCESSOR.  When the
Master Servicer receives notice of termination pursuant to Section 7.01 or the
Trustee receives the resignation of the Master Servicer evidenced by an Opinion
of Counsel pursuant to Section 6.04, 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 Trustee is succeeding to the Master Servicer as the Master Servicer, as
compensation therefor, the Trustee 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 Trustee 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


                                      VII-3
<PAGE>


hereunder.  Notwithstanding the above, the Trustee 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 Trustee 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 Trustee is required to
solicit bids as provided above, the  Trustee 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 Trustee 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 Trustee 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 Trustee 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 Trustee to the Master Servicer at the
time of such sale, transfer and assignment to the Master Servicer's successor.
The Trustee 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 Trustee and any successor servicer in
effecting the termination of the Master Servicer's servicing responsibilities
and rights hereunder and shall promptly provide the Trustee 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 Trustee 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 Trustee
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 Trustee) 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


                                      VII-4
<PAGE>


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 Trustee shall give prompt written
notice thereof to Certificateholders at their respective addresses appearing in
the Certificate Register.  The Trustee shall also, within 45 days after the
occurrence of any Event of Default known to the Trustee, 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.



                                      VII-5
<PAGE>

                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

          Section 8.01.  DUTIES OF TRUSTEE.  The Trustee, 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, 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, upon receipt of all resolutions, certificates,
statements, opinions, reports, documents, orders or other instruments furnished
to the Trustee, 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 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 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 shall be determined solely by the express
     provisions of this Agreement, the Trustee 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, in the absence of bad faith on
     the part of the Trustee, the Trustee may conclusively rely, as to  the
     truth of the statements and the correctness of the opinions expressed
     therein, upon any certificates or opinions furnished to the Trustee, and
     conforming to the requirements of this Agreement;

         (ii)  The Trustee shall not be personally liable with respect to any
     action taken, suffered or omitted to be taken by it in good faith in
     accordance with the direction of 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, or exercising any trust
     or power conferred upon the Trustee, under this Agreement; and



<PAGE>


        (iii)  the Trustee shall not be liable for any error of judgment made in
     good faith by any of its Responsible Officers, unless it shall be proved
     that the Trustee, or such Responsible Officer was negligent in ascertaining
     the pertinent facts.

          None of the provisions contained in this Agreement shall require the
Trustee 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.  Except as
otherwise provided in Section 8.01:

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

        (iii)  The Trustee shall not be 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)  The Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys.

          Section 8.03.  TRUSTEE NOT 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, the Trustee shall not be bound to
make any investigation into the facts or matters stated in any resolution,
certificate, statement, instrument, opinion, report, notice, request, consent,
order, 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 of the costs, expenses or
liabilities likely to be incurred by it in the making of such investigation is,
in the opinion of the Trustee, not reasonably assured to the Trustee by the
security afforded to it by the terms of this Agreement, the Trustee 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, shall be repaid by the Master
Servicer upon demand.


                                     VIII-2
<PAGE>


          Section 8.04.  TRUSTEE NOT 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 the Trustee assumes no responsibility as to the
correctness of the same.  The Trustee makes no representation for the
correctness of the same.  The Trustee makes no 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, the Trustee shall not 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 MAY OWN CERTIFICATES.  Each of the Trustee 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 or such agent.

          Section 8.06.  COMPENSATION OF THE TRUSTEE.  The Trustee shall be
entitled to receive a monthly fee equal to the Trustee Fee, as compensation for
services rendered by the Trustee under this Agreement.  The Master Servicer will
pay or reimburse the Trustee 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.  The Trustee hereunder shall
at all times be a corporation 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, and shall be subject to
supervision or examination by federal or state authority.  If such corporation
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
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 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.  The Trustee 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


                                     VIII-3
<PAGE>


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 may petition any court of competent jurisdiction for the
appointment of a successor trustee.

          If at any time the Trustee shall cease to be eligible in accordance
with the provisions of Section 8.07 and shall fail to resign after written
request for its resignation by the Master Servicer, or if at any time the
Trustee 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 of the property or
affairs of the Trustee 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 appoint a successor trustee by written instrument,
in duplicate, one copy of which instrument shall be delivered to the Trustee so
removed and one copy to the successor trustee.

          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 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 so removed and one complete set of
which shall be delivered to the successor so appointed.

          Any resignation or removal of the Trustee 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 appointed as provided
in Section 8.08 shall execute, acknowledge and deliver to the Master Servicer
and to its predecessor trustee an instrument accepting such appointment
hereunder, and thereupon the resignation or removal of the predecessor Trustee
shall become effective, and such successor, 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 herein.  The predecessor Trustee 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 all such rights, powers, duties and obligations.  No successor shall
accept


                                     VIII-4
<PAGE>


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
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, the successor trustee shall
cause such notice to be mailed at the expense of the Master Servicer.

          Section 8.10.  MERGER OR CONSOLIDATION.  Any Person into which the
Trustee 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 shall be a party, or
any Person succeeding to the business of such entity, shall be the successor of
the Trustee 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 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 the REMIC to federal,
state or local tax or cause the Trust Estate to fail to qualify as a REMIC,
which Opinion of Counsel shall be at the sole expense of the Trustee.

          Section 8.11.  AUTHENTICATING AGENT.  The Trustee may appoint an
Authenticating Agent, which shall be authorized to act on behalf of the Trustee
in authenticating Certificates.  Wherever reference is made in this Agreement to
the authentication of Certificates by the Trustee or the Trustee's
countersignature, such reference shall be deemed to include authentication on
behalf of the Trustee by the Authenticating Agent and a certificate of
authentication executed on behalf of the Trustee 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 Trustee
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 Seller and the
Master Servicer.  The Trustee may at any time terminate the agency of the
Authenticating Agent by giving written


                                     VIII-5
<PAGE>


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 Trustee 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 Trustee.  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


                                     VIII-6
<PAGE>


     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 Trustee 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 Trustee, by entering into a Custodial
Agreement.  Subject to this Article VIII, the Trustee 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


                                     VIII-7
<PAGE>


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 Mortgage File.  Each Custodial Agreement may be amended only as
provided in Section 10.01.

          Section 8.14.  TAX MATTERS; COMPLIANCE WITH REMIC PROVISIONS.  (a)
Each of the Trustee 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 a REMIC; or (ii)
cause the imposition of any federal, state or local income, prohibited
transaction, contribution or other tax on either the 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 Trustee, the Trustee,
shall (i) prepare, or cause to be prepared, and timely cause to be signed by the
Trustee and file annual federal and applicable state and local income tax
returns using a calendar year as the taxable year for the REMIC and the accrual
method of accounting; (ii) in the first such federal tax return, make, or cause
to be made, elections satisfying the requirements of the REMIC Provisions, on
behalf of the Trust Estate, to treat the Trust Estate 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 Trustee 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 Trust Estate, including but not limited to the income,
expenses, individual Mortgage Loans (including REO Mortgage Loans, other assets
and liabilities of the Trust Estate, and the fair market value and adjusted
basis of the Trust Estate property 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 the REMIC within the meaning of Code Section 860D(a)(2) other
than the interests represented by the Class A-l, Class A-2, Class A-3, Class A-5
and Class A-R Certificates, the Class AP Certificates, the Class M Certificates
and the Class B-l, Class B-2, Class B-3, Class B-4 and Class B-5 Certificates;
(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 that such
occurrence would not (a) result in a taxable gain, (b) otherwise subject either
the Trust Estate or the REMIC to tax or (c) cause the Trust Estate to fail to
qualify as a REMIC; (ix) exercise reasonable care not to allow the Trust Estate
to receive income from the performance of services or from assets not permitted
under the REMIC Provisions to be held


                                     VIII-8
<PAGE>


by a REMIC; (x) pay (on behalf of the Trust Estate) 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 Trust Estate 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 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 Certificateholder for such purpose (or if
the Master Servicer is not so permitted, the Holder of the Class A-R Certificate
shall be tax matters person 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 preceding sentence.  In order to enable the Master Servicer 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 or the Trustee, as the case may be, promptly upon request
therefor, any such additional information or data that the Master Servicer 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 or the Trustee, as the case may be, for
any losses, liabilities, damages, claims or expenses of the Master Servicer or
the Trustee arising from any errors or miscalculations by the Master Servicer 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 or the Trustee, as the case may be, on a timely basis.  The
Master Servicer hereby indemnifies the Seller and the Trustee for any losses,
liabilities, damages, claims or expenses of the Seller 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 Trustee prepares any of the federal,
state and local tax returns of the REMIC as described above, the Trustee hereby
indemnifies the Seller and the Master Servicer for any losses, liabilities,
damages, claims or expenses of the Seller or the Master Servicer arising from
the Trustee'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 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


                                     VIII-9
<PAGE>


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 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 Trustee shall make a
Periodic Advance as required by Section 3.03 hereof; PROVIDED that the Trustee
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.  The
Trustee shall be entitled to be reimbursed from the Certificate Account for
Periodic Advances and Nonrecoverable Advances made by it pursuant to Section
3.03 pursuant to Section 3.02(a)(v) hereof.


                                     VIII-10
<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 and the Trustee created
hereby (other than the obligation of the Trustee 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 Trustee 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
Seller 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's, 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 11.25.  In the case of any purchase by the Seller pursuant to said
clause (i), the Seller shall provide to the Trustee the certification required
by Section 3.04 and the Trustee 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 Trustee 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 Trustee (in any other case) by letter to



<PAGE>


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 Trustee 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 Trustee therein specified.
If the Master Servicer is obligated to give notice to Certificateholders as
aforesaid, it shall give such notice to the Trustee 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 Trustee 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 AP Certificates, the
Class AP Principal Balance, (iii) as to the Class M Certificates, the Class M
Principal Balance together with any Class M Unpaid Interest Shortfall and one
month's interest at the Class M Pass-Through Rate on the Class M Principal
Balance, (iv) 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 (v) as to the Class A-R
Certificate, the amount, if any, which remains on deposit in the Certificate
Account (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; PROVIDED,
HOWEVER, that 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 Trustee of any Periodic Advances, is insufficient to pay in full the amounts
set forth in clauses (i), (ii), (iii) and (iv) 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 Section 4.02(b) 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 Trustee shall on such date cause all
funds, if any, in the Certificate


                                      IX-2
<PAGE>


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 Trustee (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 Trustee 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, provided that the Trustee
has received an Opinion of Counsel or other evidence to the effect that such
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 Trust Estate or the REMIC to federal tax or cause the Trust Estate to
fail to qualify as a REMIC 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 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 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 Trustee
     shall sell all of the assets of the Trust Estate to the Master Servicer for
     cash at the purchase price specified in Section 9.01 and shall distribute
     such cash in the manner specified in Section 9.01.


                                      IX-3
<PAGE>


                                    ARTICLE X

                            MISCELLANEOUS PROVISIONS

          Section 10.01. AMENDMENT. This Agreement or any Custodial Agreement
may be amended from time to time by the Seller, the Master Servicer 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 a REMIC
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 or the REMIC
pursuant to the Code that would be a claim against the Trust Estate, provided
that (a) the Trustee 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 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 Trust Estate
or the 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 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



<PAGE>


(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, the Trustee
shall not 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 Trust Estate or the REMIC to tax or cause the Trust Estate 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 Trustee 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 to approve the particular form of any proposed amendment, but
it shall be sufficient if such consent shall approve the substance thereof. The
manner of obtaining such consents and of evidencing the authorization of the
execution thereof by Certificateholders shall be subject to such reasonable
regulations as the Trustee may prescribe.

          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 Trustee, 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,


                                       X-2
<PAGE>


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 Trustee 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 Trustee
to institute such action, suit or proceeding in its own name as Trustee
hereunder and shall have offered to the Trustee such reasonable indemnity as it
may require against the cost, expenses and liabilities to be incurred therein or
thereby, and the Trustee, for 60 days after its receipt of such notice, request
and offer of indemnity, shall have neglected or refused to institute any such
action, suit or proceeding; it being understood and intended, and being
expressly covenanted by each Certificateholder with every other
Certificateholder and the Trustee, that no one or more Holders of Certificates
shall have any right in any manner whatever by virtue or by availing of any
provision of this Agreement to affect, disturb or prejudice the rights of the
Holders of any other of such Certificates, or to obtain or seek to obtain
priority over or preference to any other such Holder, or to enforce any right
under this Agreement, except in the manner herein provided and for the benefit
of all Certificateholders.  For the protection and enforcement of the provisions
of this Section, each and every Certificateholder and the Trustee 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 Mortgage Securities,
Inc., 5325 Spectrum Drive, Frederick, Maryland  21701, 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,
_________________, __________, _______  ______, Attention: Vice President or
such other address as may hereafter be furnished to the Seller and the Trustee
in writing by the Master Servicer and (iii) in the case of the Trustee, 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, 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


                                       X-3
<PAGE>


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 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, 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 Trustee
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;

          (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 pursuant to Section
     8.08;


                                       X-4
<PAGE>


          (iii)     the appointment of a successor trustee 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, other than
     to any affiliate of Norwest Corporation;

          (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 prior
security interest in all of the Seller's right, title and interest in and to the
Mortgage Loans.


                                       X-5
<PAGE>


                                   ARTICLE XI

                             TERMS FOR CERTIFICATES

          Section 11.01. CLASS A FIXED PASS-THROUGH RATE.  The Class A Fixed
Pass-Through Rate is ___% per annum.

          Section 11.02. CUT-OFF DATE.  The Cut-Off Date for the Certificates is
________ __, 199_.

          Section 11.03. CUT-OFF DATE AGGREGATE PRINCIPAL BALANCE.  The Cut-Off
Date Aggregate Principal Balance is $_____________.

          Section 11.04. ORIGINAL CLASS A PERCENTAGE.  The Original Class A
Percentage is ___%.

          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                     $ ____________

     Class A-2                     $ ____________

     Class A-3                     $ ____________

     Class A-4                     $ ____________

     Class A-5                     $ ____________

     Class A-R                     $ ____________

          Section 11.06. ORIGINAL CLASS A PRINCIPAL BALANCE.  The Original Class
A Principal Balance is $_____________.

          Section 11.07. ORIGINAL CLASS AP PRINCIPAL BALANCE.  The Original
Class AP Principal Balance is $_____________.

          Section 11.08. ORIGINAL CLASS M PERCENTAGE.  The Original Class M
Percentage is ___%.

          Section 11.09. ORIGINAL CLASS M PRINCIPAL BALANCE.  The Original Class
M Principal Balance is $_____________.

          Section 11.10. ORIGINAL CLASS M FRACTIONAL INTEREST.  The Original
Class M Fractional Interest is ___%.



<PAGE>


          Section 11.11. MASTER SERVICING FEE RATE.  The rate used to calculate
the Master Servicing Fee for each Mortgage Loan is ___% per annum.

          Section 11.12. ORIGINAL CLASS B-1 PERCENTAGE.  The Original Class B-1
Percentage is ___%.

          Section 11.13. ORIGINAL CLASS B-2 PERCENTAGE.  The Original Class B-2
Percentage is ___%.

          Section 11.14. ORIGINAL CLASS B-3 PERCENTAGE.  The Original Class B-3
Percentage is ___%.

          Section 11.15. ORIGINAL CLASS B-4 PERCENTAGE.  The Original Class B-4
Percentage is ___%.

          Section 11.16. ORIGINAL CLASS B-5 PERCENTAGE.  The Original Class B-5
Percentage is ___%.

          Section 11.17. ORIGINAL CLASS B PRINCIPAL BALANCE.  The Original Class
B Principal Balance is $____________.

          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                      $ ___________

     Class B-2                      $ ___________

     Class B-3                      $ ___________

     Class B-4                      $ ___________

     Class B-5                      $ ___________


          Section 11.19. ORIGINAL CLASS B-1 FRACTIONAL INTEREST.  The Original
Class B-1 Fractional Interest is ___%.

          Section 11.20. ORIGINAL CLASS B-2 FRACTIONAL INTEREST.  The Original
Class B-2 Fractional Interest is ___%.

          Section 11.21. ORIGINAL CLASS B-3 FRACTIONAL INTEREST.  The Original
Class B-3 Fractional Interest is ___%.

          Section 11.22. ORIGINAL CLASS B-4 FRACTIONAL INTEREST.  The Original
Class B-4 Fractional Interest is ___%.


                                      XI-2
<PAGE>


          Section 11.23. ORIGINAL SUBORDINATED PERCENTAGE.  The Original
Subordinated Percentage is ___%.

          Section 11.24. CLOSING DATE.  The Closing Date is __________ __, 199_.

          Section 11.25. 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
$____________ (10% of the Cut-Off Date Aggregate Principal Balance) at the time
of any such purchase.

          Section 11.26. WIRE TRANSFER ELIGIBILITY. With respect to the
Certificates (other than the Class AP, Class M, Class A-R, Class B-1, Class B-2,
Class B-3, Class B-4 and Class B-5 Certificates), the minimum Denomination
eligible for wire transfer on each Distribution Date is $5,000,000.  The minimum
Denomination eligible for wire transfer on each Distribution Date for the Class
AP, Class M, Class B-1, Class B-2, Class B-3, Class B-4 and Class B-5
Certificates is 100% Percentage Interest.  The Class A-R Certificate is not
eligible for wire transfer.

          Section 11.27. SINGLE CERTIFICATE. A Single Certificate for each
Subclass of Class A Certificates, the Class AP Certificates, the Class M
Certificates, and each Subclass of Class B Certificates represents a $100,000
Denomination.  A Single Certificate for the Class A-R Certificate represents a
$1000 Denomination.

          Section 11.28. SERVICING FEE RATE.  The rate used to calculate the
Servicing Fee which ranges from ___% to ___% per annum and, as to each Mortgage
Loan, is set forth on Exhibit F-1 or F-2 hereto.

          Section 11.29. TRUSTEE FEE RATE.  The rate used to calculate the
Trustee Fee for each Mortgage Loan is ___% per annum.


                                      XI-3



<PAGE>

                                  [LETTERHEAD]                       Exhibit 5.1

                                  May 15, 1996

Norwest Asset Securities Corporation
5325 Spectrum Drive
Frederick, Maryland 21701

          Re:  Mortgage Pass-Through Certificates
               ----------------------------------

Gentlemen:

          We have acted as your counsel in connection with the Registration
Statement (File No. 333-02209) filed with the Securities and Exchange Commission
(the "Commission") on the date hereof, pursuant to the Securities Act of 1933,
as amended, and as amended by Pre-Effective Amendment No. 1 thereto to be filed
with the Commission on the date hereof (as amended, the "Registration
Statement").  The Registration Statement covers Mortgage Pass-Through
Certificates ("Certificates") to be sold by Norwest Asset Securities Corporation
("NASCOR") in one or more series (each, a "Series") of Certificates.  Each
Series of Certificates will be issued under a separate pooling and servicing
agreement (each, a "Pooling and Servicing Agreement") among NASCOR, a trustee to
be identified in the Prospectus Supplement for such Series of Certificates (a
"Trustee"), and Norwest Bank Minnesota, National Association, as master servicer
(the "Master Servicer").  A form of Pooling and Servicing Agreement is included
as a Exhibit to the Registration Statement. Capitalized terms used and not
otherwise defined herein have the respective meanings ascribed to such terms in
the Registration Statement.

          We have examined originals or copies certified or otherwise identified
to our satisfaction of such documents and records of NASCOR, and such public
documents and records as we have deemed necessary as a basis for the opinions
hereinafter expressed.

          Based on the foregoing, we are of the opinion that:

<PAGE>

Norwest Asset Securities Corporation  -2-                           May 14, 1996


          1.   When a Pooling and Servicing Agreement for a Series of
               Certificates has been duly and validly authorized, executed and
               delivered by NASCOR, a Trustee and the Master Servicer, such
               Pooling and Servicing Agreement will constitute a valid and
               legally binding agreement of NASCOR, enforceable against NASCOR
               in accordance with its terms, subject to applicable bankruptcy,
               reorganization, insolvency, moratorium and other laws affecting
               the enforcement of rights of creditors generally and to general
               principles of equity and the discretion of the court (regardless
               of whether enforceability is considered in a proceeding in equity
               or at law); and

          2.   When a Pooling and Servicing Agreement for a Series of
               Certificates has been duly and validly authorized, executed and
               delivered by NASCOR, a Trustee and the Master Servicer, and the
               Certificates of such Series have been duly executed,
               authenticated, delivered and sold as contemplated in the
               Registration Statement, such Certificates will be legally and
               validly issued, fully paid and nonassessable, and the holders of
               such Certificates will be entitled to the benefits of such
               Pooling and Servicing Agreement.

          We hereby consent to the filing of this letter as an Exhibit to the
Registration Statement and to the reference to this firm under the heading
"Legal Matters" in the Prospectus forming a part of the Registration Statement.
This consent is not to be construed as an admission that we are a person whose
consent is required to be filed with the Registration Statement under the
provisions of the Act.

                              Very truly yours,

                              /s/ Cadwalader, Wickersham & Taft

<PAGE>




                                  [LETTERHEAD]                       Exhibit 8.1




                                  May 15, 1996



Norwest Asset Securities Corporation
5325 Spectrum Drive
Frederick, Maryland 21701

          Re:  Mortgage Pass-Through Certificates
               ----------------------------------

Gentlemen:

          We have acted as your counsel in connection with the Registration
Statement (File No. 333-02209) filed with the Securities and Exchange Commission
(the "Commission") on the date hereof, pursuant to the Securities Act of 1933,
as amended, and as amended by Pre-Effective Amendment No. 1 thereto to be filed
with the Commission on the date hereof (as amended, the "Registration
Statement").  Capitalized terms used and not otherwise defined herein have the
respective meanings ascribed to such terms in the Registration Statement.

          In rendering the opinion set forth below, we have examined and relied
upon the following: (1) the Registration Statement, the Prospectus and the form
of Prospectus Supplement constituting a part thereof, each substantially in the
form being filed with the Commission; (2) the form of the Pooling and Servicing
Agreement, substantially in the form being filed with the Commission; and (3)
such other documents, materials, and authorities as we have deemed necessary in
order to enable us to render our opinion set forth below.

          As counsel to Norwest Asset Securities Corporation ("NASCOR"), we have
advised NASCOR with respect to certain federal income tax aspects of the
proposed issuance of the Certificates. Such advice has formed the basis for the
description of material federal income tax consequences for holders of the
Certificates that appears under the heading "Certain Federal Income Tax
Consequences" in the Prospectus and under the headings "Summary Information --
Federal Income Tax Status" and "Federal Income Tax Considerations" in the form
of Prospectus Supplement. Such descriptions do not purport to discuss all
possible federal income tax ramifications of the proposed issuance of the

<PAGE>

Norwest Asset Securities Corporation  -2-                           May 14, 1996


Certificates, but, with respect to those federal income tax consequences that
are discussed, in our opinion, the description is accurate in all material
respects.

          This opinion is based on the facts and circumstances set forth in the
Prospectus and the Prospectus Supplement and in the other documents reviewed by
us. Our opinion as to the matters set forth herein could change with respect to
a particular Series of Certificates as a result of changes in facts and
circumstances, changes in the terms of the documents reviewed by us, or changes
in the law subsequent to the date hereof. As the Registration Statement
contemplates Series of Certificates with numerous different characteristics, the
particular characteristics of each Series of Certificates must be considered in
determining the applicability of this opinion to a particular Series of
Certificates.  The opinion contained in each Prospectus Supplement and
Prospectus prepared pursuant to the Registration Statement is, accordingly,
deemed to be incorporated herein.

          We hereby consent to the filing of this letter as an Exhibit to the
Registration Statement and to the references to our firm under the heading
"Certain Federal Income Tax Consequences" in the Prospectus.   This consent is
not to be construed as an admission that we are a person whose consent is
required to be filed with the Registration Statement under the provisions of the
Act.

                                        Very truly yours,

                                        /s/  Cadwalader, Wickersham & Taft

<PAGE>




                          [FORM OF SERVICING AGREEMENT]       

                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION


                                   (Principal)


                                       and

 
                              NORWEST MORTGAGE, INC.


                                   (Servicer)


                               SERVICING AGREEMENT
  
                            Dated as of       , 199





<PAGE>

     This Servicing Agreement, made as of this ___st day of _______, 1996 (the
"Agreement"), between Norwest Mortgage, Inc., a California corporation (the
"Servicer") and Norwest Bank Minnesota, National Association, a national banking
association, (the "Principal"), recites and provides as follows:

                            RECITALS

     WHEREAS, the Servicer is engaged in the business of servicing residential
mortgage loans, and the Principal, on behalf of the owners of the related
Mortgage Loans, desires to retain the Servicer, and the Servicer desires to be
retained, to service the Mortgage Loans identified on Schedule I hereto subject
to and in accordance with the terms of this Agreement; and

     WHEREAS, the Master Servicer acting pursuant to a Supervision Agreement
will supervise, monitor and oversee the performance of the Servicer under this
Agreement; and

     WHEREAS, the Principal may, at its sole discretion, assign an undivided
interest in its rights hereunder with respect to certain Mortgage Loans to the
respective Owner of such Mortgage Loans;

     NOW THEREFORE, in consideration of the mutual promises, covenants,
representations and warranties hereinafter set forth, and for other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Servicer and the Principal agree as follows:


                            ARTICLE 1

                           DEFINITIONS

          ACH:   Automated Clearing House.

          ADJUSTED TANGIBLE NET WORTH:  As of the date of determination thereof,
the sum of:  (i) Servicer's Tangible Net Worth; plus (ii) one percent (1%) of
the amount of Servicer's servicing portfolio, as determined by the Master
Servicer in the Master Servicer's reasonable discretion.

          ADVANCE:  Any payment made with respect to a Mortgage Loan or the
related Mortgaged Property by the Servicer from its own funds made in the nature
of an advance pursuant to the provisions of this Agreement.

          AFFILIATE:   Any person or entity controlling, controlled by or under
common control with a specified entity.  The term "control" means the power to
direct the management and policies of a person or entity, directly or
indirectly, whether through ownership of voting securities, by contract or
otherwise.  "controlling" and "controlled" shall have meanings correlative to
the foregoing.

                                       -2-
<PAGE>

          AMOUNTS HELD FOR FUTURE DISTRIBUTION:  As to any Remittance Date,
amounts on account of (i) all prepayments of principal received in the month of
such Remittance Date and all related payments of interest on such principal
prepayments (other than Prepayments in Full or Curtailments received by the
Servicer prior to the related Determination Date), Liquidation Proceeds received
in the month of such Remittance Date (other than Partial Liquidation Proceeds
received by the Servicer prior to the related Determination Date), and amounts
received from the Servicer or a Representing Party in the month of such
Remittance Date as the Purchase Price for any repurchased Mortgage Loan and (ii)
payments which represent early receipt of scheduled payments of principal and
interest due on a date or dates subsequent to the related Due Date.

          APPRAISAL REPORT:   A report setting forth the fair market value of a
Mortgaged Property as determined by an appraiser who, at the time the appraisal
was conducted, met the minimum qualifications of FNMA and FHLMC for appraisers
of conventional residential mortgage loans.

          ARM LOAN:   An "adjustable rate" Mortgage Loan, the Mortgage Interest
Rate of which is subject to periodic adjustment in accordance with the terms of
the related Mortgage Note.

          ASSIGNMENT:   The document which transfers all the rights of the
secured party pursuant to a Security Instrument to a transferee for valid
consideration.

          ASSUMPTION:   The process whereby, on sale or transfer of a legal or
beneficial interest in a Mortgaged Property, the new owner of such Mortgaged
Property becomes legally obligated under the terms of the related existing
Security Instrument, Mortgage Note and any addenda and riders to such Security
Instrument or Mortgage Note.  Subsequent to the Assumption, the new owner of the
property shall be deemed to be the Borrower under the related Mortgage Loan
Documents.

          BALLOON AMOUNT:  The remaining principal balance to be paid at
maturity of a Balloon Loan by the related Borrower pursuant to the terms of the
related Mortgage Note.

          BALLOON LOAN:  A Mortgage Loan which amortizes its principal payments
over a period which is longer than the stated maturity of such Mortgage Loan
pursuant to the terms of the related Mortgage Note so as to require the payment
of the Balloon Amount at maturity in order to retire the Mortgage Loan.

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

          BIF:   The Bank Insurance Fund.

          BORROWER:   The individual obligated to repay a Mortgage Loan.  (The
Borrower may be the beneficiary or beneficiaries of an Illinois land trust when
the Mortgaged Property is located in Illinois.)

                                       -3-
<PAGE>

          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 Maryland, State of Minnesota
or State of Iowa or (iii) a day on which banking institutions in the City of New
York, or the State of Maryland, State of Minnesota or State of Iowa are
authorized or obligated by law or executive order to be closed.

          BUYDOWN AGREEMENT:   An agreement governing the application of Buydown
Funds with respect to a Mortgage Loan.

          BUYDOWN FUNDS:   Money advanced by a builder, seller or other
interested party to reduce a Borrower's Monthly Payment during the initial years
of a Mortgage Loan.

          CERTIFICATE:   A mortgage backed security issued by an Owner of the
related Mortgage Loans which is secured, in whole or in part, by such Mortgage
Loans.

          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.

          CONDOMINIUM PROJECT:   Real estate including the separate ownership in
fee, or on a satisfactory leasehold estate, of a particular residential unit
with an indivisible interest in the real estate designated for common ownership
strictly by unit owners.

          CONDOMINIUM UNIT:   A Single Family Property within a Condominium
Project.

          CONVERTED MORTGAGE LOAN:   An ARM Loan with respect to which the
Borrower has complied with the applicable requirements of the related Mortgage
Note to convert the related Mortgage Interest Rate to a fixed rate of interest,
and the Servicer has processed such conversion.

          CO-OP SHARES:  Shares issued by private non-profit housing
corporations.

          CURRENT VALUE:   The appraised value of the related Mortgaged Property
from an Appraisal Report conducted within six (6) months of the use of such
value under this Agreement.

          CURTAILMENT:   A partial prepayment by the Borrower of principal on a
Mortgage Loan that otherwise is current, which prepayment is not accompanied by
an amount representing the full amount of scheduled interest due on the related
Mortgage Loan.

          CUSTODIAL BUYDOWN ACCOUNT:   An account maintained by the Servicer
specifically to hold all Buydown Funds to be applied to individual Mortgage
Loans.

                                       -4-
<PAGE>

          CUSTODIAL PRINCIPAL AND INTEREST (P&I) ACCOUNT:   An account
maintained by the Servicer, specifically for the collection of principal and
interest, Insurance Proceeds, Liquidation Proceeds and other amounts received
with respect to Mortgage Loans.

          CUSTODIAL SUBSIDY ACCOUNT:   An account maintained by the Servicer
specifically to hold all Subsidy Funds to be applied to individual Mortgage
Loans.

          CUSTODIAL TAXES AND INSURANCE (T&I) ACCOUNT:   An account maintained
by the Servicer, specifically for the payment of real estate tax assessments and
insurance premiums in respect of Mortgaged Property related to Mortgage Loans.

          CUSTODIAN:   [_____________________], which shall hold all or part of
the Owner Mortgage Loan File with respect to a Mortgage Loan on behalf of the
Master Servicer as agent for the Owner of such Mortgage Loan.

          CUT-OFF DATE:   With respect to any Mortgage Loan, the date set forth
on Schedule I, or on Schedule II as to a subsequent Owner, after which any
payments of principal or interest that become due, whether received before, on
or after such date are to be deposited to the Custodial P&I Account for the
benefit of the Owner of the related Mortgage Loan.

          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 the related
Mortgaged Property of which is involved in a bankruptcy proceeding, the
reduction by the bankruptcy court of the Unpaid Principal Balance of the
Mortgage Note.

          DELINQUENCY/DELINQUENT:   A Delinquency with respect to a Mortgage
Loan occurs, or a Mortgage Loan is Delinquent when all or part of a Borrower's
Monthly Payment or, where applicable, an Escrow Item is paid after the
applicable Due Date.  For reporting purposes, a Delinquency that remains uncured
for 30 days or more, but less than 60 days, is considered a 30-day Delinquency.
A Delinquency that has been uncured for more than 60 days, but less than 90
days, is considered a 60-day Delinquency.  A Delinquency that has been uncured
for 90 days or more is considered a 90-day Delinquency.  The foregoing shall be
determined based on an assumption of a year comprised of twelve 30-day months.

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

          DIRECTLY OPERATE:   With respect to any REO, the direct or indirect
furnishing or rendering of services to the tenants thereof, management or
operation of such REO, the holding of such REO primarily for sale to customers,
performance of any construction work thereon or any use of such REO in a trade
or business, in each case other than with the

                                       -5-
<PAGE>

approval of the Master Servicer; provided, however, that the Servicer shall not
be considered to Directly Operate an REO solely because it establishes rental
terms, chooses tenants, enters into or renews leases, deals with taxes and
insurance, or makes decisions as to repairs or capital expenditures with respect
to such REO.

          DUE DATE:   With respect to a Mortgage Loan, the day of each month on
which a Monthly Payment and, where applicable, an Escrow Funds payment is due as
stated in the related Mortgage Note.  The Due Date for all Mortgage Loans will
be the first day of each month.

          DUE-ON-SALE CLAUSE:   The clause in a Security Instrument requiring
the payment of the Unpaid Principal Balance of the related Mortgage Loan upon
the sale of, or the transfer of an interest in, the related Mortgaged Property.

          DUFF & PHELPS:  Duff & Phelps Credit Rating Co. or its successor-in-
interest.

          ELIGIBLE ACCOUNT:   One or more accounts (i) that are maintained with
a depository institution 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 which holding company structure) at the time of deposit
therein are rated in one of the two highest rating categories by each of
Moody's, S&P, Fitch and Duff & Phelps (if so rated by such entity), (ii) the
deposits in which are fully insured by the FDIC through either BIF or SAIF,
(iii) the deposits in which are insured by the FDIC through either BIF or SAIF
(to the limit established by the FDIC) and the uninsured deposits in which
accounts are otherwise secured such that, as evidenced by an Opinion of Counsel
delivered to the Master Servicer which is satisfactory to the Master Servicer,
the Owners of the related Mortgage Loans, and where there are beneficial owners
as to any such Owners, on behalf of any such beneficial owners, has a claim with
respect to the funds in such accounts or a perfected first priority 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) maintained as a trust account or accounts
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 the Master Servicer.

          ELIGIBLE CUSTODIAL P&I ACCOUNT:   As defined in Section 6.1.2.

          ELIGIBLE INVESTMENTS:   Any one or more of the following obligations
or securities:

                    (i) direct obligations of, and obligations fully guaranteed
     as to timely payment of principal and interest by, the United States of
     America, FNMA, FHLMC or any agency or instrumentality of the United States
     of America the obligations of which are backed by the full faith and credit
     of the United States of America; PROVIDED, HOWEVER, that any obligation of,
     or guarantee by, FNMA or FHLMC, other than an unsecured senior debt
     obligation of FNMA or FHLMC or a mortgage participation or pass-through
     certificate guaranteed by FNMA or FHLMC,

                                       -6-
<PAGE>

     shall be an Eligible Investment only if, at the time of investment, such
     investment would not adversely affect the rating, if any, on any class of
     Certificates which are secured by Mortgage Loans that are the source of
     funds which are the subject of such investment (as confirmed in writing by
     the Rating Agencies);

                    (ii) demand and time deposits in, certificates of deposits
     of, or bankers' acceptances issued by, any depository institution or trust
     company incorporated or organized under the laws of the United States of
     America or any state thereof and subject to supervision and examination by
     federal or state banking authorities, so long as at the time of investment
     or the contractual commitment providing for such investment the commercial
     paper or other short-term debt obligations of such depository institution
     or trust company are rated "A-1+" by S&P, "Duff-1+" by Duff & Phelps (if
     rated by Duff & Phelps), rated in the highest category by Fitch (if rated
     by Fitch) and "P-1" by Moody's and the long-term debt obligations of such
     depository institution or trust company are rated at least "Aa2" by
     Moody's, "AA" by Duff & Phelps (if rated by Duff & Phelps), "AA" by Fitch
     (if rated by Fitch) and "AA" by S&P;

                    (iii) repurchase agreements or obligations with respect to
     any security described in clause (i) above where such security has a
     remaining maturity of one year or less and where such repurchase obligation
     has been entered into with a depository institution or trust company
     (acting as principal) described in clause (ii) above and where such
     repurchase obligation will mature prior to the next Remittance Date;

                    (iv)  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 securities have a credit rating from
     S&P, Duff & Phelps (if rated by Duff & Phelps), Fitch (if rated by Fitch)
     and Moody's, at the time of investment or the contractual commitment
     providing for such investment, at least equal to the second highest long-
     term credit rating assigned by S&P, Duff & Phelps (if rated by Duff &
     Phelps), Fitch (if rated by Fitch) and Moody's to the Certificates;
     PROVIDED, HOWEVER, that securities issued by any particular corporation
     will not be Eligible Investments to the extent the investment therein will
     cause the then outstanding principal amount of securities issued by such
     corporation and held as part of the Custodial Accounts to exceed 10% of (a)
     the aggregate Unpaid Principal Balance of the Mortgage Loans serviced by
     the Servicer or (b) the aggregate principal amount of all Eligible
     Investments in the Custodial Accounts;

                    (v) commercial paper (including both noninterest-bearing
     discount obligations and interest-bearing obligations payable on demand or
     on a specified date not more than one year after the date of issuance
     thereof) rated "A-1" by S&P, rated "Duff-1" by Duff & Phelps (if rated by
     Duff & Phelps), rated in the highest category by Fitch (if rated by Fitch)
     and rated "P-1" by Moody's;

                                       -7-
<PAGE>

                    (vi)  units of investment funds rated in the highest
     category by S&P, Duff & Phelps (if rated by Duff & Phelps), Fitch (if rated
     by Fitch)  and Moody's;

                    (vii)  a qualified guaranteed investment contract; and

                    (viii) any other demand, money market or time deposit or
     obligation, or interest-bearing or other security or investment, acceptable
     to the Master Servicer;

PROVIDED, HOWEVER, that no such instrument shall 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 payments with respect to such instrument provide a
yield to maturity of greater than 120% of the yield to maturity at par of such
underlying obligations.

          Eligible Investments that are subject to prepayment or call may not be
purchased at a price in excess of par.

          ERRORS AND OMISSIONS POLICY:   An insurance policy naming the initial
Owner of the related Mortgage Loans, its successors and assigns as loss payees
relative to losses caused by errors or omissions of the Servicer and its
personnel, including, but not limited to losses caused by the failure to pay
insurance premiums or taxes, to record or perfect liens, to effect valid
transfers of Mortgage Notes, or to properly service Mortgage Loans.

          ESCROW FUNDS:   All funds collected with respect to a Mortgage Loan by
the Servicer to cover related Escrow Items according to the provisions of this
Agreement.

          ESCROW ITEM:   An expense required to be paid by a Borrower under the
related Security Instrument including, without limitation, taxes, special
assessments, ground rents, water, sewer and other governmental impositions or
charges that are or may become liens on the related Mortgaged Property prior to
that of the related Security Instrument, as well as Hazard Insurance, Flood
Insurance and Primary Mortgage Insurance premiums.

          FDIC:   Federal Deposit Insurance Corporation and its successors.

          FHA:  The Federal Housing Administration and its successors.

          FHLMC:  Federal Home Loan Mortgage Corporation and its successors.

          FIDELITY BOND:   An insurance policy naming the initial Owner of the
related Mortgage Loans, its successors and assigns as loss payees relative to
losses caused by improper or unlawful acts of the Servicer's personnel.

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

                                       -8-
<PAGE>

          FLOOD INSURANCE:   An insurance policy insuring against flood damage
to a Mortgaged Property, where required.

          FNMA:   Federal National Mortgage Association and its successors.

          GNMA:   Government National Mortgage Association and its successors.

          GPM (OR GPARM) LOAN:   A fixed rate Mortgage Loan or ARM Loan that
provides during a portion of its term that the interest portion of the Monthly
Payment on such Mortgage Loan shall be less than the full amount of interest due
on such Mortgage Loan based on the related Mortgage Interest Rate.

          GROSS MARGIN:   With respect to each ARM Loan, the fixed percentage
specified in the related Mortgage Note that is added to the applicable Index on
each Interest Adjustment Date to determine the new Mortgage Interest Rate for
such ARM Loan.

          HAZARD INSURANCE:   A fire and casualty extended coverage insurance
policy insuring against loss or damage from fire and other perils covered within
the scope of standard extended hazard coverage naming the Owner of the related
Mortgage Loan, its successors and assigns, as a mortgagee under a standard
mortgagee clause, together with all riders and endorsements thereto.

          HUD:   The United States Department of Housing and Urban Development
and its successors.

          INDEX:   With respect to each ARM Loan, the applicable index specified
in the related Mortgage Note that is added to the related Gross Margin on each
Interest Adjustment Date to determine the new Mortgage Interest Rate for such
ARM Loan.

          INSURANCE POLICY:   Any insurance policy for a Mortgage Loan required
hereunder, including, without limitation, Primary Mortgage Insurance, Hazard
Insurance, Flood Insurance, Pool Insurance and Title Insurance policies.

          INSURANCE PROCEEDS:   Proceeds from an Insurance Policy, other than
such proceeds which are applied by the Borrower or held to be applied by the
Borrower to the restoration of the related Mortgaged Property.

          INTEREST ADJUSTMENT DATE:   With respect to each ARM Loan, the date on
which the related Mortgage Interest Rate changes in accordance with the terms of
such Mortgage Note, the first of which is set forth in such Mortgage Note and on
the respective Mortgage Loan Schedule.

          LIQUIDATION:   Application of full payment to a Mortgage Loan which
results in the release of the lien of the related Security Instrument on any
related Mortgaged Property,

                                       -9-
<PAGE>

whether through foreclosure and sale of the related REO, condemnation,
prepayment in full or otherwise, or the realization of all sums from the final
disposition of the related REO.

          LIQUIDATION PROCEEDS:   The amount received by the Servicer which
ultimately relate to the Liquidation of a Mortgage Loan.

          LOAN ORIGINATOR:   The entity that closes a Mortgage Loan in its own
name.

          LOAN-TO-VALUE (LTV):   The ratio that results when the Unpaid
Principal Balance of a Mortgage Loan is divided by the Value of the related
Mortgaged Property.

          MASTER SERVICER:   Norwest Bank Minnesota, National Association, or
any successors and assigns.

          MASTER SERVICER CUSTODIAL ACCOUNT:  A segregated custodial account
established by the Master Servicer into which the Servicer shall remit funds
from the related Custodial P&I Account.

          MASTER SERVICER LOAN NUMBER:   A unique number assigned by the Master
Servicer to each Mortgage Loan set forth in Schedule I.

          MAXIMUM LIFETIME MORTGAGE INTEREST RATE:   With respect to each ARM
(or GPARM) Loan, the interest rate set forth in the related Mortgage Note as the
maximum Mortgage Interest Rate thereunder.

          MAXIMUM NEGATIVE AMORTIZATION AMOUNT:   With respect to any Mortgage
Loan that provides for negative amortization, the maximum principal balance
which is permitted under the terms of the related Mortgage Note.

          MINIMUM LIFETIME MORTGAGE INTEREST RATE:   With respect to each ARM
Loan, the interest rate set forth in the related Mortgage Note as the minimum
Mortgage Interest Rate thereunder, if any.

          MONTH END INTEREST:   In the event of any Prepayment in Full of a
Mortgage Loan received by the Servicer on or after the Determination Date in the
month in which such prepayment occurred, the difference between the interest
payment that would have been paid on such Mortgage Loan or portion thereof that
was prepaid through the last day of the month in which such prepayment occurred
and the interest payment actually received by the Servicer on such Mortgage Loan
or portion thereof that was prepaid.

          MONTH END INTEREST SHORTFALL:   The portion of Month End Interest for
all Mortgage Loans for any month unable to be paid by the Servicer out of the
portion of its Monthly Servicing Compensation pursuant to clause (a) of Section
4.8.1 for such month due to the exhaustion of such portion of such Monthly
Servicing Compensation in paying such Month End Interest.

                                      -10-
<PAGE>

          MONTHLY ACCOUNTING REPORTS:   The reports due from a Servicer on a
monthly basis (due no later than the eighteenth calendar day of the month, or
the preceding Business Day if the 18th day is not a Business Day) relative to
all Mortgage Loans serviced by the Servicer, which reports are required to be
submitted to the Master Servicer.

          MONTHLY PAYMENT:   With respect to any Mortgage Loan, the scheduled
monthly payment of principal and interest due in the applicable month under the
terms of the related Mortgage Note.

          MONTHLY REMITTANCE:   The Servicer's aggregate payment due each month
with respect to all Mortgage Loans owned by a common Owner to the appropriate
Master Servicer Custodial Account as specified in Section 18.3.1.

          MONTHLY SERVICING COMPENSATION:   The aggregate servicing compensation
due the Servicer in each month.

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

          MORTGAGE INTEREST RATE:   The interest rate payable by the Borrower on
a Mortgage Loan according to the terms of the Mortgage Note which, in the case
of ARM Loans, may be adjusted periodically as provided in such Mortgage Note.

          MORTGAGE LOAN:   A mortgage loan identified on Schedule I which is
owned by the respective Owner shown on Schedule II.  "Mortgage Loan" includes
all of the respective Owner's right, title and interest in and to such Mortgage
Loan, including, without limitation, the related Mortgage Loan Documents and all
other material and information collected by the Servicer in connection with the
Mortgage Loan including Monthly Payments, Liquidation Proceeds, Insurance
Proceeds and all other rights, benefits and proceeds arising from or in
connection with such Mortgage Loan.

          MORTGAGE LOAN DOCUMENTS:   With respect to a Mortgage Loan, the
original related Mortgage Note with applicable addenda and riders, the original
related Security Instrument and the originals of any required addenda and
riders, the original related Assignment and any original intervening related
Assignments, the original related Title Insurance policy, related Primary
Mortgage Insurance policy, if any, and the related Appraisal Report made at the
time such Mortgage Loan was originated, and all other documents described in
Article 9 hereof.

          MORTGAGE NOTE:   A manually executed written instrument evidencing the
related Borrower's promise to repay a stated sum of money, plus interest, to the
related Loan Originator by a specific date according to a schedule of monthly
principal and interest payments.

          MORTGAGE NOTE ASSUMPTION RIDER:   A rider attached to a Mortgage Note
which states the terms upon which an Assumption may occur, including, but not
limited to, consent

                                      -11-
<PAGE>

in writing by the insurer under any Primary Mortgage Insurance Policy with
respect to the related Mortgage Loan.

          MORTGAGED PROPERTY: Land, improvements thereon and other property
subject to the lien of a Security Instrument, which may include Co-op Shares or
residential long-term leases, securing repayment of the debt evidenced by the
related Mortgage Note.

          MORTGAGEE:   The secured party to which a Security Instrument
initially grants a lien on the related Mortgaged Property.

          NET MORTGAGE INTEREST RATE:   With respect to a Mortgage Loan, the
difference between (a) the Mortgage Interest Rate on such Mortgage Loan and (b)
the Servicing Fee Percentage for such Mortgage Loan.

          NON-RECOVERABLE ADVANCE:   Any amount previously advanced by the
Servicer with respect to a Mortgage Loan, which the Servicer has determined,
pursuant to the terms of this Agreement, not to be recoverable from Insurance
Proceeds, Liquidation Proceeds or other payments with respect to such Mortgage
Loan.

          NOTICE OF PERIODIC ADJUSTMENT:   With respect to each ARM Loan, a
notice provided to the Borrower of any changes or adjustments to the related
Mortgage Interest Rate or the related Monthly Payment.

          OFFICER:   An officer of a corporation or a principal of a
partnership, who is authorized to execute documents on behalf of his corporation
or partnership, respectively.

          OPINION OF COUNSEL:  A written opinion of counsel, reasonably
acceptable in form and substance to the Master Servicer, and who may be in-house
or outside counsel to the Servicer but which must be Independent outside counsel
with respect to any such opinion of counsel concerning the taxation, or status
for tax purposes, of the Owner.

          OWNER OR OWNER OF THE MORTGAGE LOANS:   With respect to each Mortgage
Loan, the respective Person listed on Schedule II.

          OWNER MORTGAGE LOAN FILE:   With respect to each Mortgage Loan, a file
maintained by the Owner of the related Mortgage Loan or the Custodian for such
Mortgage Loan, which file contains the documents specified in Section 9.1
hereof, as well as any other documents that come into the Custodian's possession
with respect to such Mortgage Loan.

          OWNER-OCCUPIED PROPERTY:   A one- to four-unit property which is the
Primary Residence of the owner of record.

          P&I ADVANCE:  With respect to any Mortgage Loan, an advance by the
Servicer of any principal and interest payments not timely paid by the related
Borrower (other than with respect to a Balloon Loan, any amounts of principal
payments in respect of Balloon Amounts), excluding the amount of the related
Servicing Fee.

                                      -12-
<PAGE>

          PARTIAL LIQUIDATION PROCEEDS:  As to any Remittance Date, Liquidation
Proceeds received by the Servicer on a Mortgage Loan during the related Partial
Liquidation Receipt Period other than those Liquidation Proceeds received during
such Partial Liquidation Receipt Period which result from the complete and final
Liquidation of such Mortgage Loan.

          PARTIAL LIQUIDATION RECEIPT PERIOD:  As to any Remittance Date, the
period from and including the Determination Date occurring in the month
preceding the month of such Remittance Date (or, in the case of the first
Remittance Date, from and including the Cut-off Date) to but not including the
Determination Date occurring in the month of such Remittance Date.

          PAYMENT ADJUSTMENT DATE:   With respect to each ARM Loan, the date on
which the Borrower's Monthly Payment changes in accordance with the terms of the
related Mortgage Note.

          PERIODIC PAYMENT CAP:   With respect to an ARM Loan, the limit on the
percentage increase that may be made on the related Monthly Payment on any
Payment Adjustment Date, as set forth in the related Mortgage Note.

          PERIODIC RATE CAP:   With respect to an ARM Loan, the limit, expressed
as incremental percentage points, on the increase or decrease that may be made
to the related Mortgage Interest Rate on any Interest Adjustment Date from such
Mortgage Interest Rate immediately prior to such Interest Adjustment Date, as
set forth in the related Mortgage Note.

          PERSON:   Any individual, corporation, partnership, joint venture,
association, joint-stock company, trust or unincorporated organization.

          POOL INSURANCE:   An insurance policy insuring against certain credit
risk losses on certain Mortgage Loans up to a certain amount.

          POOL INSURER:   With respect to any Mortgage Loan, the insurer under
the Pool Insurance policy relating to such Mortgage Loan.

          POOL [X] MORTGAGE LOAN:  Any Mortgage Loan listed on Schedule I hereto
under the heading "Pool [X]".

          PRELIMINARY TITLE REPORT:   A report issued by a title insurance
company in anticipation of issuing a Title Insurance policy which evidences
existing liens and gives a preliminary opinion as to the absence of any
encumbrance on title to a Mortgaged Property, except liens to be removed on or
before purchase or refinance, as the case may be, by the Borrower and Permitted
Encumbrances.

          PREPAYMENT IN FULL:  With respect to any Mortgage Loan, any payment by
the Borrower in the amount of the outstanding principal balance of such Mortgage
Loan which is

                                      -13-
<PAGE>

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.

          PRIMARY MORTGAGE INSURANCE:   Insurance obtained from a Primary
Mortgage Insurer which insures the holder of a Mortgage Note against loss in the
event the related Borrower defaults under such Mortgage Note or the related
Security Instrument, including all riders and endorsements thereto.

          PRIMARY MORTGAGE INSURER:   With respect to any Mortgage Loan, the
insurer under the Primary Mortgage Insurance policy relating to such Mortgage
Loan.

          PRIMARY RESIDENCE:   The principal and permanent residence of a
Borrower.

          PRINCIPAL:  Norwest Bank Minnesota National Association, or any
successors, or any assigns.

          PROPERTY INSPECTION REPORT:   A report, submitted by the Servicer to
the Master Servicer, describing the related Mortgaged Property.

          PRUDENT SERVICING PRACTICES:  Such practices observed generally by
servicers in discharging their servicing obligations in a prudent manner in
accordance with industry standards for mortgage loans similar to the Mortgage
Loans.

          PUD (PLANNED UNIT DEVELOPMENT):   A parcel of real estate that
contains property and improvements owned and maintained by a homeowners'
association, corporation or trust for the enjoyment and use of individual PUD
Unit owners within that parcel of land.  The shared portions of the parcel are
known as common property.

          PUD UNIT:   A single family residential property within a PUD.

          PURCHASE AGREEMENT:   Any mortgage loan purchase agreement to which
the initial Owner of a related Mortgage Loan, as the purchaser thereunder, is a
party and by which the Mortgage Loan was acquired by such Owner.

          PURCHASE PRICE:   An amount equal to (a) the Unpaid Principal Balance
of the Mortgage Loan, plus (b) accrued interest thereon at the Mortgage Interest
Rate through the last day of the month in which the purchase occurs, and, if the
Servicer is the entity paying the Purchase Price, minus (c) any unreimbursed
advances of principal and interest made by the Servicer on such Mortgage Loan
and any outstanding Servicing Fee owed with respect to such Mortgage Loan.
Further, in connection with any such purchase of a Mortgage Loan as a result of
a breach of a representation or warranty under this Agreement, the Servicer
shall provide the Owner with an indemnity, in form and substance satisfactory to
the Master Servicer, against additional costs, expenses and taxes arising out of
the repurchase.

          REAL ESTATE OWNED (REO):   Any Mortgaged Property the title to which
is acquired on behalf of the Owner of the related Mortgage Loan through
foreclosure, deed-in-

                                      -14-
<PAGE>

lieu of foreclosure, abandonment or reclamation from bankruptcy in connection
with a defaulted Mortgage Loan.

          REALIZED LOSS:   As to any defaulted Mortgage Loan, any loss realized
by the Owner of such Mortgage Loan as calculated pursuant to Section 7.7 hereof.

          REFERENCE BANK:   [Bankers Trust] or if such entity is no longer
lending money or no longer quoting a prime rate, such other entity as the Master
Servicer may specify by written notice to the Servicer.

          REMIC:   The segregated pool or pools of assets designated as a real
estate mortgage investment conduit pursuant to, and within the meaning of, the
REMIC Provisions, or as the context requires, a particular REMIC to which a
Mortgage Loan has been transferred.

          REMIC PROVISIONS:   The provisions of the federal income tax law
relating to real estate mortgage investment conduits, which appear at Sections
860A through 860G of the Code, and related provisions, and regulations and
rulings promulgated thereunder, as the foregoing may be in effect from time to
time and including any proposed legislation or regulations which, as proposed,
would have an effective date prior to enactment thereof.

          REMITTANCE DATE:   The 18th day of each month (or the preceding
Business Day if the 18th day is not a Business Day).  Each month, the Servicer
must transfer all required funds from the Custodial P&I Account to the Master
Servicer Custodial Account on or before the Remittance Date.

          RENTS FROM REAL PROPERTY:   With respect to any REO, gross income of
the character described in Section 856(d) of the Code (generally, rent for the
use of real property, the amount of which is not dependent, in whole or in part,
upon the income or profit of any person, including certain payments for certain
services and personal property incidental to and customarily provided in
connection with the rental of such real property.)

          REO DISPOSITION:   The receipt by the Servicer of Liquidation Proceeds
and other payments and recoveries (including proceeds of a final sale) from the
sale or other disposition of the REO.

          REPRESENTING PARTY:   A Person that has sold or intends to sell
Mortgage Loans, directly or through one or more intermediaries, to the initial
Owner of the related Mortgage Loans pursuant to an agreement for the sale of
Mortgage Loans pursuant to which a Representing Party has made representations
and warranties with respect to certain Mortgage Loans, and under which the Owner
of such Mortgage Loans, its successors and assigns has recourse against such
Representing Party for any breach thereunder.

          S&P:   Standard & Poor's, or its successor-in-interest.

          SAIF:   The Savings Association Insurance Fund.

                                      -15-
<PAGE>

          SCHEDULED PRINCIPAL BALANCE:   With respect to each Mortgage Loan (or
related REO), the principal balance of such Mortgage Loan as of the applicable
Due Date calculated by taking into account the application of any Monthly
Payments due on or before such Due Date (whether or not such Monthly Payments
were received from the Borrower), and Curtailments, Insurance Proceeds or
Liquidation Proceeds, and Realized Losses received or realized by the Servicer
prior to such Due Date.

          SECURITY INSTRUMENT:   A written instrument creating a valid first
lien on a Mortgaged Property.  A Security Instrument may be in the form of a
mortgage, deed of trust, deed to secure debt or security deed, including any
riders and addenda thereto.

          SERVICER:   Norwest Mortgage, Inc., the entity that has entered into
this Agreement with the Principal, any successors, or any assigns.

          SERVICER LOAN MORTGAGE NUMBER:   A unique number assigned by the
Servicer to a Loan.

          SERVICER MORTGAGE LOAN FILE:   A file maintained by the Servicer for
each Mortgage Loan that contains the documents specified in Section 9.2 hereof,
as well as any other documents that come into the Servicer's possession with
respect to a Mortgage Loan.

          SERVICER NUMBER:   A three digit number assigned to the Servicer by
the Master Servicer.  The Servicer Number shall be used on all correspondence
and forms and in all telephone conversations with the Master Servicer.

          SERVICING FEE:   For each Mortgage Loan, the compensation due the
Servicer in an amount equal to the product of (i) one-twelfth of the Servicing
Fee Percentage and (ii) the Scheduled Principal Balance of the Mortgage Loan as
of the immediately preceding Due Date (without taking into account any payment
of principal due on such Due Date).

          SERVICING FEE PERCENTAGE:   With respect to each Mortgage Loan, the
Servicing Fee Percentage shall be identified on Schedule I hereto.

          SINGLE FAMILY PROPERTY:   A one-unit residential property.

          SUBPOOL [X] MORTGAGE LOAN:  Any Mortgage Loan listed on Schedule I
hereto under the heading "Subpool [X]".

          SUBSIDY FUNDS:  Funds contributed by the employer of a Borrower in
order to reduce the payments required from the Borrower for a specified period
in specified amounts.

          SUBSIDY LOAN:  Any Mortgage Loan subject to a temporary interest
subsidy agreement pursuant to which the monthly interest payments made by the
related Borrower 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 Borrower.

                                      -16-
<PAGE>

          SUPERVISION AGREEMENT:   A supervision agreement between the Master
Servicer and the Principal.

          TANGIBLE NET WORTH:  As of the date of determination thereof, the par
value (or value stated on the Servicer's books) of the capital stock of all
classes of the Servicer, plus, or minus in the case of a deficiency, the amount
of paid in capital and retained earnings of the Servicer, all determined in
accordance with generally accepted accounting principles as are then in effect.
The Master Servicer may exclude assets that are unacceptable, in the Master
Servicer's reasonable discretion, from the determination of the Servicer's
Tangible Net Worth.

          T&I ADVANCE:   An advance by the Servicer of any taxes and insurance
premiums due with respect to any Mortgage Loan.

          THRESHOLD AMOUNT:  With respect to any Custodial P&I Account, (i)
$100,000 or, in the case of any Eligible Custodial P&I Account, the aggregate
amount on deposit therein (I.E., an unlimited amount); or (ii) after any notice
has been given pursuant to Section 19.2.6, the amount specified in such notice.

          TITLE INSURANCE:   An American Land Title Association (ALTA) mortgage
loan title policy form 1970, or other form of Title Insurance Policy acceptable
to FNMA or FHLMC, including all riders and endorsements thereto, insuring that
the Security Instrument constitutes a valid first lien on the related Mortgaged
Property subject only to permitted encumbrances.

          TRANSFER OF OWNERSHIP:   Includes, but is not limited to, the
conveyance of a Mortgaged Property, whether legal or equitable, voluntary or
involuntary, by any of the following methods:

          (a)  outright sale;
          (b)  deed;
          (c)  installment sale contract;
          (d)  land contract;
          (e)  contract for deed;
          (f)  leasehold interest with the term greater than three years;
          (g)  lease with option to purchase;
          (h)  land trust; or
          (i)  any other conveyance of an interest in real property, including
               those involving secondary financing.

          UNPAID PRINCIPAL BALANCE:   With respect to any Mortgage Loan, the
outstanding principal balance payable by the Borrower under the terms of the
Mortgage Note.

          UNPOOLED MORTGAGE LOAN:  Any Mortgage Loan listed on the Schedule I
hereto under the heading "Unpooled Mortgage Loans."

                                      -17-
<PAGE>

          VA:  The Department of Veterans Affairs and its successors.

          VALUE:   The lesser of the appraised value or sales price of the
related Mortgaged Property at the time the Mortgage Loan is closed.  For a
refinanced Mortgage Loan, the Value of the related Mortgaged Property is its
appraised value at the time the refinanced Mortgage Loan is closed.



















                                      -18-
<PAGE>


                                    ARTICLE 2

CONSTRUCTION


Section 2.1    LEGAL CONSTRUCTION

     2.1.1     COMPLIANCE WITH APPLICABLE LAW.  The obligations of the Servicer
     pursuant to this Agreement shall at all times be performed in compliance
     with all applicable laws.

     2.1.2     POTENTIAL CONFLICT.  If any obligation of the Servicer pursuant
     to this Agreement shall give rise to a potential conflict with applicable
     law, such obligation shall be construed so as to (a) comply with all
     applicable laws and (b) effectuate with respect to such obligations, to the
     fullest extent permitted by law, the intention of the parties hereto as
     expressed in this Agreement.

     2.1.3     CONSISTENT LEGAL COMPLIANCE.  The fact that certain provisions of
     this Agreement contain language which expressly requires compliance with
     all applicable laws, shall not give rise to an implication that other
     provisions, which do not expressly include such language, operate in
     derogation of the requirement for such legal compliance.

     2.1.4     GENERAL INTERPRETIVE RULES.  For purposes of this Agreement,
     except as otherwise expressly provided or unless the context otherwise
     requires, (i) the terms defined in this Agreement have the meanings
     assigned to them in this Agreement and include the plural as well as the
     singular, and the use of any gender herein shall be deemed to include the
     other gender; (ii) reference herein to "Article", "Section", "Clause", and
     other subdivisions, and to "Exhibits", without reference to a document, are
     to designated Articles, Sections, Clauses and other subdivisions of, and to
     Exhibits to, this Agreement; (iii) reference to a Clause without further
     reference to a Section is a reference to such Clause as contained in the
     same Section in which the reference appears, and this rule shall also apply
     to other subdivisions; (iv) "including" means "including but not limited
     to"; and (v) the words "herein", "hereof", "hereunder" and other words of
     similar import refer to this Agreement as a whole and not to any particular
     provision.

     2.1.5     CONSTRUCTION OF PROVISIONS.  Although certain provisions of this
     Agreement contain express language which precludes the Servicer's recovery
     of, or reimbursement for, expenses incurred hereunder, no inference to the
     contrary shall be drawn from absence of such, or similar, language in any
     other provision hereof regarding expenses.

Section 2.2    SERVICER PRACTICES

     2.2.1     PRUDENT SERVICING PRACTICES.  Where not inconsistent with the
     provisions of this Agreement, the Servicer shall at all times perform its
     obligations hereunder in accordance with Prudent Servicing Practices, which
     shall not be less exacting than the Servicer employs and exercises in
     servicing and administering mortgage loans for its

                                      -19-

<PAGE>

     own account, or for the account of FNMA or FHLMC, including exploring
     alternatives to foreclosure to mitigate Realized Losses.

     2.2.2     NON-DISCRIMINATION PRACTICES.  The Servicer shall at all times
     perform its obligations under this Agreement so as to (a) treat Borrowers
     on the basis of their individual merits and (b) not discriminate against
     Borrowers on the basis of their race, creed or national origin.

Section 2.3    GENERAL PROVISIONS

     2.3.1     SERVICER'S AGREEMENT.  The Servicer agrees with the Principal, on
     behalf of the owners of the related Mortgage Loans, to service the Mortgage
     Loans in accordance with the provisions of this Agreement and, to the
     extent of any instructions of the Master Servicer that are given, such
     instructions and, subject to the provisions hereof and without any further
     instruction by the Master Servicer except as shall be expressly provided
     for herein, shall have full power and authority to do all things necessary
     in connection therewith.

     2.3.2     TERM OF AGREEMENT.  Except as otherwise provided herein, the
     duties, responsibilities and obligations to be performed and carried out by
     the Servicer under this Agreement shall commence upon the execution of this
     Agreement and shall continue until (a) each Mortgage Loan is (i) liquidated
     or (ii) otherwise paid in full, (b) all payments related thereto are
     remitted in accordance with this Agreement, and (c) all obligations
     hereunder related thereto are discharged.

     2.3.3     AMENDED MORTGAGE LOAN SCHEDULE.  From time to time as additional
     Mortgage Loans are transferred to be serviced hereunder by the Servicer,
     Schedule I shall be amended by the Principal to include the new Mortgage
     Loans.  Due to defects in documentation and for other reasons, certain
     Mortgage Loans referred to in the Mortgage Loan Schedule may be deleted and
     other Mortgage Loans may be added.  The Servicer hereby agrees to any such
     addition and/or deletion of any Mortgage Loans and, in the event any
     Mortgage Loans are added and/or deleted from the Mortgage Loan Schedule,
     the Servicer authorizes the Master Servicer to amend and attach hereto a
     corrected Mortgage Loan Schedule, as Schedule I, reflecting only those
     Mortgage Loans that are serviced hereunder.  The Master Servicer will
     provide the Servicer with the corrected and updated Mortgage Loan Schedule.
     The Principal, with the consent of the related Owner of the Mortgage Loans
     may group, and may alter such groupings of, certain Mortgage Loans under
     headings of a specific pool, subpool or as unpooled Mortgage Loans and may
     alter Schedules I and II to reflect such groupings.

     2.3.4     ASSIGNMENT AND REPLACEMENT.  The Servicer acknowledges and agrees
     that in the event that the Master Servicer resigns as Master Servicer under
     this Agreement, the Principal or any successor master servicer has the
     right to assume the Master Servicer's rights and obligations and to enforce
     the Servicer's obligations under this Agreement.

                                      -20-
<PAGE>

     2.3.5     NOTICES.  All notices, requests, demands and other communications
     required or permitted under this Agreement shall be in writing and shall be
     deemed to have been duly given, made and received upon actual receipt of
     registered or certified mail, postage prepaid, return receipt requested,
     addressed as set forth below:

     (a)  if to the Principal:

     Norwest Bank Minnesota, National Association
     11000 Broken Land Parkway
     Columbia, Maryland 21044 - 3562
     Attention:  Vice President

     (b)  if to the Master Servicer:

     Norwest Bank Minnesota, National Association
     11000 Broken Land Parkway
     Columbia, Maryland 21044 - 3562
     Attention:  Director of Master Servicing

     (c)  if to the Servicer:

     Norwest Mortgage, Inc.
     405 Southwest 5th Street
     Des Moines, Iowa  50309
     Attention:  Senior Vice President, Servicing

     (d) if to the Custodian:

     [CUSTODIAN]
     [STREET ADDRESS]
     [ADDRESS]
     ATTENTION:

     (e) if to the Owner of a related Mortgage Loan to such address as is shown
     on Schedule II for such Owner.

     Any party may alter the address to which communications or copies are to be
     sent by giving notice of such change of address in conformity with the
     provisions of this paragraph for the giving of notice.

     2.3.6     CHANGE OF ACCOUNTANTS.  During the term of this Agreement, the
     Servicer shall not change, or make any substitution of, its certified
     public accountants except upon written notice to the Master Servicer given
     30 days prior to such change or substitution.

                                      -21-
<PAGE>

Section 2.4    SERVICING OF MORTGAGE LOANS FOR MULTIPLE OWNERS

     2.4.1     TRANSFER OF MORTGAGE.  An Owner may, from time to time, (i) sell
     its interest in any Mortgage Loan or Mortgage Loans to another person who
     would become the Owner thereof, and (ii) assign an interest in this
     Agreement to such person with respect to such Mortgage Loan or Mortgage
     Loans.  Without the consent of the Master Servicer, no transfer of
     ownership of an interest in the Mortgage Loans or this Agreement will be
     permitted if it would result in there being more than four distinct owners
     of the Mortgage Loans at any one time (without regard to any beneficial
     owners of a trust where such trust owns Mortgage Loans serviced hereunder)
     which Mortgage Loans comprise a pool of mortgage loans sold or transferred
     by Norwest Mortgage, Inc. to a purchaser or a transferee on any one day,
     excluding from such computation, Mortgage Loans owned by Norwest Mortgage,
     Inc., an Affiliate thereof, or an entity formed by either of the foregoing.
     The transfer of ownership and assignment of interest will be reflected as
     provided for in Section 2.4.2 hereof.  The Servicer agrees (a) to continue
     to service each Mortgage Loan for the benefit of the related Owner of such
     Mortgage Loan in accordance with the terms of this Agreement, and (b) to
     obey the instructions of the Master Servicer regarding the performance of
     this Agreement.

     2.4.2     OWNERSHIP SCHEDULE.  The Master Servicer shall amend Schedule II
     to reflect the change of ownership of any Mortgage Loan which is serviced
     hereunder, upon thirty (30) days prior written notice, which shall specify
     the ownership transfer date (referred to as the Cut-Off Date in clause (c)
     below), given by an Owner with respect to such Mortgage Loans which notice
     shall include a signed writing, in the form set forth as Exhibit A hereto,
     evidencing the transfer of such Mortgage Loans executed by both the
     transferor Owner which transferred the Mortgage Loans and the transferee to
     which such Mortgage Loans were transferred, which party shall become the
     Owner at the time of such amendment to Schedule II.  The signed writing
     described in Exhibit A hereof shall be accompanied by incumbency
     certificates of the transferor and the transferee which indicate the
     appropriate signatory authority.  The entry in Schedule II shall (a)
     identify the Mortgage Loan by its respective Master Servicer Loan Number,
     (b) specify the name and mailing address of the Owner of such Mortgage Loan
     and (c) indicate the Cut-Off Date which applies to the change of ownership
     of the Mortgage Loan to the listed Owner.

                                      -22-
<PAGE>


                                    ARTICLE 3

                                REMIC COMPLIANCE

Section 3.1    GENERAL

     3.1.1     APPLICABILITY.  The provisions of this Article 3 apply to all the
     Mortgage Loans or Mortgaged Property unless the Mortgage Loan has not been
     transferred (or been identified for a future transfer) to an entity with
     respect to which an election to be characterized as a REMIC has been (or is
     expected to be) made.

     3.1.2     MODIFICATIONS OF MORTGAGE.  With the prior written consent of the
     Master Servicer, the Servicer may modify the terms of a Mortgage Loan which
     is in default or a Mortgage Loan as to which default is reasonably
     foreseeable; PROVIDED, however, that (i) such modification may not reduce
     the amount of principal owed under the related Mortgage Note or permanently
     reduce the Mortgage Interest Rate for such Mortgage Loan and (ii) the
     Servicer and the Master Servicer have determined that such modification is
     likely to increase the proceeds of such Mortgage Loan over the amount
     expected to be collected pursuant to foreclosure.  Notwithstanding anything
     to the contrary in this Agreement, the Servicer shall not permit any
     modification of any material term of a Mortgage Loan (including the
     Mortgage Interest Rate, the principal balance, the amortization schedule,
     or any other term affecting the amount or timing of payments on the
     Mortgage Loan) where such modification is not the result of a default or as
     to which default is reasonably foreseeable under the Mortgage Loan unless
     the Master Servicer has consented thereto and the Servicer has received an
     Opinion of Counsel or a ruling from the Internal Revenue Service (at the
     expense of the Servicer or the party making the request of the Servicer 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 or a disposition of the modified Mortgage Loan and that such
     modification is permitted under the REMIC Provisions.


     3.1.3     INDEMNIFICATION WITH RESPECT TO CERTAIN TAXES AND LOSS OF REMIC
     STATUS.  In the event that the REMIC fails to qualify as a REMIC, loses its
     status as a REMIC, or incurs state or local taxes, or tax as a result of a
     prohibited transaction or contribution subject to taxation under the REMIC
     Provisions due to the negligent performance by the Servicer of its duties
     and obligations set forth herein, the Servicer shall indemnify the
     respective trustee, the Master Servicer and the holders of the related
     Certificates against any and all losses, claims, damages, liabilities or
     expenses ("REMIC Failure Losses") resulting from such negligence; PROVIDED,
     HOWEVER, that the Servicer shall not be liable for any such REMIC Failure
     Losses attributable to the action or inaction of the Master Servicer or the
     holders of such Certificates nor for any such REMIC Failure Losses
     resulting from misinformation provided by the Master Servicer on which the
     Servicer has relied.  The foregoing shall not be deemed to limit or
     restrict the rights and remedies of the other holders of the Certificates
     now or hereafter existing at law or in equity.

                                      -23-
<PAGE>

Section 3.2    REO QUALIFICATION

     3.2.1     FORECLOSURE PROPERTY.  Notwithstanding any other provision of
     this Agreement, the Servicer, shall not rent, lease, or otherwise earn
     income on behalf of the REMIC with respect to any REO which might cause
     such REO to fail to qualify as "foreclosure" property within the meaning of
     section 860G(a)(8) of the Code (E.G., rent based upon the earnings of the
     lessee) or result in the receipt by the REMIC of any "income from non-
     permitted assets" within the meaning of section 860F(a)(2) of the Code
     (E.G., income attributable to any asset which is not a qualified mortgage,
     a cash flow or reserve fund investment, or personal property not incidental
     to the REO) or any "net income from foreclosure property" which is subject
     to tax under the REMIC Provisions unless the Master Servicer has received
     an Opinion of Counsel (at the Servicer's expense) to the effect that, under
     the REMIC Provisions and (where appropriate, any relevant proposed
     legislation) any income generated for the REMIC by the REO would not result
     in the imposition of a tax upon the REMIC.  In general, the purpose of this
     Section 3.2 and the REMIC Provisions (which this section is intended to
     implement) is to ensure that the income earned by the REMIC is passive type
     income such as interest on mortgages and passive type rental income on real
     property.

     3.2.2     FORECLOSURE PROPERTY QUALIFICATION RESTRICTIONS.  Without
     limiting the generality of the foregoing, the Servicer shall not:

               (i)  permit the REMIC to enter into, renew or extend any lease
                    with respect to any REO, if the lease by its terms will give
                    rise to any income that does not constitute Rents from Real
                    Property;

               (ii) permit any amount to be received or accrued under any lease
                    other than amounts that will constitute Rents from Real
                    Property;


               (iii)authorize or permit any construction on any REO, other than
                    the completion of a building or other improvement thereon,
                    and then only if more than ten percent of the construction
                    of such building or other improvement was completed before
                    default on the related Mortgage Loan became imminent, all
                    within the meaning of Section 856(e)(4)(B) of the Code; or

               (iv) Directly Operate or allow any other Person to Directly
                    Operate, any REO on any date more than 90 days after its
                    acquisition date;

     unless, in any such case, the Servicer has requested and received an
     Opinion of Counsel (at the Servicer's expense) to the effect that such
     action will not cause such REO to fail to qualify as "foreclosure property"
     within the meaning of Section

                                      -24-
<PAGE>

     860G(a)(8) of the Code at any time that it is held by the REMIC, in which
     case the Servicer may take such actions as are specified in such Opinion of
     Counsel.

     3.2.3     REO DISPOSITION.  Within 30 days following an REO Disposition,
     the Servicer shall provide to the Master Servicer a statement of accounting
     for the related REO, including without limitation, (i) the loan number of
     the related Mortgage Loan, (ii) the date such Mortgaged Property was
     acquired in foreclosure or by deed in lieu of foreclosure, (iii) the date
     of REO Disposition, (iv) the gross sales price and related selling and
     other expenses, (v) accrued interest calculated from the date of
     acquisition to the disposition date and (vi) such other information as the
     related trustee may reasonably request.

Section 3.3    PROHIBITED TRANSACTIONS AND ACTIVITIES

     3.3.1     MORTGAGE LOAN DISPOSITION RESTRICTION.  The Servicer shall not
     permit the sale, disposition or substitution for any of the Mortgage Loans
     (except in a disposition pursuant to (i) the foreclosure or default of a
     Mortgage Loan, (ii) the bankruptcy or insolvency of the  REMIC, (iii) the
     termination of the REMIC in a "qualified liquidation" or "clean-up" call as
     defined in Section 860F of the Code or (iv) a substitution of a Qualifying
     Substitution Mortgage Loan as permitted under the REMIC Provisions), nor
     acquire any assets for the REMIC, after the startup day of the REMIC, nor
     sell or dispose of any investments in any of the accounts established by
     the Servicer for the REMIC for gain, nor accept any contributions to the
     REMIC (other than a cash contribution during the 3-month period beginning
     on the startup day of the REMIC), unless it has received an Opinion of
     Counsel (at the expense of the Person requesting the Servicer to take such
     action) to the effect that such disposition, acquisition, substitution, or
     acceptance will not (a) affect adversely the status of the REMIC as a REMIC
     or of the Certificates, other than the Certificates representing the
     residual interest in the REMIC, as the regular interests therein within the
     meaning of the REMIC Provisions, (b) affect the distribution of interest or
     principal on the Certificates, (c) result in the encumbrance of the assets
     transferred or assigned to the REMIC (except pursuant to the provisions of
     this Agreement) or (d) cause the REMIC to be subject to a tax on
     "prohibited transactions" or "prohibited contributions" pursuant to the
     REMIC Provisions.

     3.3.2     PERSONAL PROPERTY.  The Servicer shall not acquire any personal
     property relating to any Mortgage Loan unless either:

               (a)  such personal property is incident to real property (within
                    the meaning of Section 856(e)(1) of the Code) so acquired by
                    the Servicer; or

               (b)  the Servicer shall have requested and received an Opinion of
                    Counsel, at the expense of the Servicer, to the effect that
                    the holding of such personal property by the REMIC will not
                    cause the imposition of a tax on the REMIC under the REMIC
                    Provisions or cause the REMIC to fail to qualify as a REMIC
                    at any time that any Certificate is outstanding.

                                      -25-
<PAGE>


Section 3.4    ELIGIBLE INVESTMENTS

     3.4.1     CUSTODIAL ACCOUNT.  Funds in any custodial accounts established
     by the Servicer and maintained in respect of the REMIC may be invested and,
     if invested, shall be invested in Eligible Investments selected by the
     Servicer which shall mature not later than the Business Day immediately
     preceding the next Remittance Date, and any such Eligible Investment shall
     not be sold or disposed of prior to its maturity.  All such Eligible
     Investments shall be made in the name of the REMIC or its nominee.  All
     income and gain realized from any such investment shall be, as long as the
     Servicer is servicing the Mortgage Loans held by the REMIC, for the benefit
     of the Servicer as additional compensation 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 relevant
     account by the Servicer out of its own funds immediately as realized.  The
     foregoing requirements for deposit in such account are exclusive, it being
     understood and agreed that, without limiting the generality of the
     foregoing, payments of interest on funds in such account and, as long as
     the Servicer is servicing the Mortgage Loans held by the REMIC, payments in
     the nature of prepayment fees, late payment charges, assumption fees or any
     similar fees customarily associated with the servicing mortgage loans paid
     by any mortgagor need not be deposited by the Servicer in such account and
     may be retained by the Servicer as additional servicing compensation.  If
     the Servicer deposits in such account any amount not required to be
     deposited therein, it may at any time withdraw such amount, any provision
     herein to the contrary notwithstanding.

     3.4.2     ESCROW ACCOUNT.  Subject to the terms of the related Mortgage
     Notes and Security Instrument, and further subject to applicable law, any
     funds in any escrow account shall be invested in Eligible Investments that
     mature prior to the date on which payments have to be made out of the
     related escrow account and any such Eligible Investment shall not be sold
     or disposed of prior to its maturity; provided that, if any loss is
     incurred on any such investment, the Servicer shall cover such loss by
     making a deposit into the appropriate escrow account out of its own funds
     in the amount of such loss.  Withdrawals from any escrow account may be
     made (to the extent amounts have been escrowed for such purpose and to the
     extent permitted by the related Security Interest and Mortgage Note) only
     (i) to effect timely payment of Escrow Items in connection with the related
     Mortgage Loan, (ii) to reimburse the Master Servicer or Servicer out of
     related collections for advances with respect to Escrow Items, (iii) to
     refund to any mortgagors any sums determined to be overages, (iv) to pay
     interest, if any, owed to mortgagors on such account to the extent required
     by law, (v) for application to restoration or repair of the Mortgaged
     Property or (vi) to clear and terminate the escrow account on the
     termination of this Agreement.  The Servicer shall be entitled to all
     investment income on any escrow account not required to be paid to
     mortgagors pursuant to the preceding sentence.

                                      -26-
<PAGE>


                                    ARTICLE 4

                            SERVICER CONSIDERATIONS

Section 4.1     [RESERVED]
Section 4.2    SERVICER ELIGIBILITY STANDARDS


     To service Mortgage Loans under this Agreement the Servicer must satisfy
     the eligibility standards set forth in this Section 4.2 initially and at
     all times thereafter.

     4.2.1     REGULATORY APPROVALS AND LICENSING.  A Servicer must be:

               (a)  FNMA or FHLMC approved and in good standing;

               (b)  a HUD approved mortgagee in good standing;

               (c)  in compliance with all applicable capital requirements and
                    other requirements from time to time specified by any
                    governmental agency or quasi-governmental authority having
                    jurisdiction over the Servicer; and

               (d)  properly licensed to service the Mortgage Loans in all
                    relevant jurisdictions where such licenses are required.

     4.2.2     NET WORTH AND PORTFOLIO REQUIREMENTS.

               (a)  The Servicer must maintain a Tangible Net Worth of at least
                    $1,000,000.

               (b)  The Servicer must maintain an Adjusted Tangible Net Worth of
                    at least $1,000,000.

               (c)  The Servicer must maintain a servicing portfolio of at least
                    $1,000,000,000.

     4.2.3     AUDITOR'S OPINION AND OTHER ANNUAL REPORTS.  The Servicer must
     provide the Master Servicer, as part of the application process (except as
     to clause (c)) and annually thereafter within 120 days after the close of
     the Servicer's fiscal year, with the following reports and opinions:

               (a)  financial statements for the most recently closed fiscal
                    year, together with an unqualified opinion thereon of an
                    independent certified public accountant who is a member of
                    the American Institute of Certified Public Accountants,
                    unless the Master Servicer, in its reasonable discretion,
                    decides to waive this requirement regarding qualification;

                                      -27-
<PAGE>

               (b)  a statement from the independent certified public accountant
                    who prepared the above-referenced financial statements for
                    the Servicer, certifying that, on the basis of an
                    examination of certain documents and records relating to the
                    mortgage loans being serviced by the Servicer conducted
                    substantially in compliance with the Uniform Single Audit
                    Program for Mortgage Bankers, the servicing of such mortgage
                    loans was conducted in compliance with the provisions of
                    this Agreement and other similar agreements, except for (i)
                    such exceptions as such firm believes to be immaterial and
                    (ii) such other exceptions as are set forth in such
                    statement; and

               (c)  a certificate signed by any Officer of the Servicer involved
                    in, or responsible for, the administration and servicing of
                    the Mortgage Loans certifying that the Officer signing such
                    certificate has supervised a review of the activities of the
                    Servicer during the preceding fiscal year and of the
                    Servicer's performance during the most recently closed
                    fiscal year under this Agreement and that to the best of
                    such officer's knowledge, based on such review, the Servicer
                    has fulfilled its duties, responsibilities and obligations
                    under this Agreement throughout such year, or, if there has
                    been failure by the Servicer to fulfill any duty,
                    responsibility or obligation under this Agreement,
                    specifying the nature and status of each such failure.

     4.2.4     SERVICING EXPERIENCE.  The Servicer shall satisfactorily
     demonstrate to the Master Servicer, in the Master Servicer's reasonable
     discretion, the following experience:

               (a)  that it has at least three (3) years of conventional
                    mortgage loan servicing experience;

               (b)  that it has a staff knowledgeable in servicing of Mortgage
                    Loans and the administration of REO; and

               (c)  that it has experience maintaining a servicing portfolio in
                    excess of $1 billion.

     4.2.5     MATERIAL CHANGES.  The Servicer shall promptly report to the
     Master Servicer any change in its business operations, financial condition,
     properties or assets since the date of the latest submitted financial
     statements which could have a material adverse effect on the Servicer's
     ability to perform its obligations hereunder.  Events for which the Master
     Servicer must receive notice include, but are not limited to, the
     following:

               (a)  any change in the Servicer's business address and/or
                    telephone number;

               (b)  any merger, consolidation, or significant reorganization;

                                      -28-
<PAGE>

               (c)  any changes in the Servicer's ownership whether by direct or
                    indirect means.  Indirect means include any change in
                    ownership of the Servicer's parent;

               (d)  any change in the Servicer's corporate name;

               (e)  if the Servicer is a savings and loan association, any
                    change in the Servicer's charter from federal to state or
                    vice versa;

               (f)  any decreases in capital, adverse alteration of debt/equity
                    ratios, or changes in management ordered or required by a
                    regulatory authority supervising or licensing the Servicer;

               (g)  any significant adverse change in the Servicer's financial
                    position;

               (h)  entry of any court judgment or regulatory order in which the
                    Servicer is or may be required to pay a claim or claims
                    which, in the Master Servicer's reasonable opinion, have a
                    material adverse effect on the Servicer's financial
                    condition; and

               (i)  the Servicer admits to committing, or is found to have
                    committed, a material, in the Master Servicer's reasonable
                    opinion, violation of any law, regulation, or order.

Section 4.3    ERRORS AND OMISSIONS INSURANCE

     4.3.1     E & O REQUIREMENT.  A Servicer must maintain, at all times and at
     its own expense and consistent with FNMA or FHLMC requirements, an Errors
     and Omissions Policy, in the amount and having the other terms described
     below, with broad coverage from an incorporated surety company authorized
     to do business in the Servicer's state of domicile.

     4.3.2     E & O COVERAGE.  The Servicer must maintain an Errors and
     Omissions Policy in a minimum amount per occurrence equal to the greater of
     (i) $1,000,000 or (ii) the Fidelity Bond coverage amount required of the
     Servicer as set forth in Section 4.4 hereof.  This coverage may not be
     changed except as to an increase in the amount of coverage.

     4.3.3     E & O SCOPE.  The Errors and Omissions Policy must explicitly
     insure the Servicer, its successors and assigns, against any losses
     resulting from negligence, errors or omissions on the part of officers,
     employees or other persons acting on behalf of the Servicer in the
     performance of its duties as a Servicer pursuant to this Agreement,
     including, but not limited to, the following:

               (a)  payment when due of all applicable insurance premiums,
                    including, but not limited to, any Primary Mortgage
                    Insurance, Hazard Insurance and

                                      -29-
<PAGE>

                    any Flood Insurance in accordance with the insurance
                    requirements in Articles 15 and 16 of this Agreement;

               (b)  where applicable, compliance with Primary Mortgage Insurance
                    and/or Pool Insurance requirements for Mortgage Loans
                    serviced under this Agreement;

               (c)  payment of real estate taxes and special assessments; and

               (d)  determination of whether any Mortgaged Property is located
                    in an area where Flood Insurance is available and required
                    by the Flood Disaster Protection Act of 1973, as amended.

     4.3.4     E & O POLICY MAINTENANCE.  The Servicer must maintain in effect
     the Errors and Omissions Policy at all times and the Errors and Omissions
     Policy may not be canceled, permitted to lapse or otherwise terminated
     without thirty Business Days' prior written notice by registered mail to
     the Master Servicer. Further, the Errors and Omissions Policy must provide
     that, or the insurer must state in writing to the Master Servicer that, the
     Errors and Omissions Policy shall not be cancelable without the giving of
     notice as provided for in the prior sentence.

     4.3.5     E & O DEDUCTIBLE.  The terms of the Errors and Omissions Policy
     must provide for a deductible amount that does not exceed the greater of
     $100,000 per occurrence or 5.0% of the coverage amount per occurrence.

     4.3.6     E & O QUALIFICATIONS.  The Errors and Omissions Policy must be
     obtained by the Servicer from an insurer which satisfies FNMA or FHLMC
     standards in this regard.

     4.3.7     NOTICE OF CLAIM.  The Servicer must immediately report to the
     Master Servicer all claims made against the insurer under the Errors and
     Omissions Policy, and shall promptly follow such report with a written
     notice to the Master Servicer.

Section 4.4    FIDELITY BOND COVERAGE

     4.4.1     FIDELITY BOND REQUIREMENT.  A Servicer must maintain, at all
     times, at its own expense and consistent with FNMA requirements, a Fidelity
     Bond, in the amounts and having the other terms described below with broad
     coverage from an incorporated surety company authorized to do business in
     the Servicer's state of domicile.  The Fidelity Bond may be in the form of
     either individual bonds or a blanket bond.

     4.4.2     FIDELITY BOND COVERAGE.  The amount of Fidelity Bond coverage
     shall be as follows:

               (a)  a minimum of $300,000 for the Servicer's servicing
                    portfolio, the current principal amount of which totals $100
                    million or less; plus

                                      -30-
<PAGE>

               (b)  an additional 0.15% of the amount of the current principal
                    amount of the Servicer's servicing portfolio between $100
                    million and $500 million; plus

               (c)  an additional 0.125% of the amount of the current principal
                    amount of the Servicer's servicing portfolio between $500
                    million and $1 billion; plus

               (d)  an additional 0.1% of the amount of the current principal
                    amount of the Servicer's servicing portfolio in excess of $1
                    billion.

     This coverage may not be changed except as to an increase in the amount of
     coverage.

     4.4.3     FIDELITY BOND SCOPE.  The coverage of the Fidelity Bond must
     explicitly insure the Servicer, its successors and assigns, against any
     losses resulting from dishonest, fraudulent or criminal acts on the part of
     Officers, employees or other persons acting on behalf of the Servicer.

     4.4.4     FIDELITY BOND MAINTENANCE.  The Servicer must maintain in effect
     the Fidelity Bond at all times and the Fidelity Bond may not be canceled,
     permitted to lapse or otherwise terminated without thirty Business Days'
     prior written notice by registered mail to the Master Servicer.  Further,
     the Fidelity Bond must provide that, or the insurer must state in writing
     to the Master Servicer that, the Fidelity Bond shall not be cancelable
     without the giving of notice as provided for in the prior sentence.

     4.4.5     FIDELITY BOND DEDUCTIBLE.  The terms of the Fidelity Bond must
     provide for a deductible amount that does not exceed the greater of
     $100,000 per occurrence or 5.0% of the coverage amount per occurrence.

     4.4.6     FIDELITY BOND RATING REQUIREMENT.  The Fidelity Bond must be
     obtained from a company which satisfies FNMA or FHLMC standards in this
     regard.

     4.4.7     NOTICE OF EVENT.  The Servicer must promptly report to the Master
     Servicer any and all occurrences against the Fidelity Bond of the Servicer.

Section 4.5    SERVICER'S LIABILITY

     4.5.1     LIABILITY EXPOSURE.  Any and all losses not covered under the
     Fidelity Bond or Errors and Omissions Policy, as a result of (i) the
     respective deductible provisions thereof, (ii) the limits of coverage of
     the Fidelity Bond or Errors and Omissions Policy or (iii) any claim denied
     which should have been covered by the Fidelity Bond or the Errors and
     Omissions Policy, as the case may be, according to the terms of this
     Agreement had the Fidelity Bond or Errors and Omissions Policy been
     properly obtained and maintained and respective claim been properly
     submitted for payment,

                                      -31-
<PAGE>

     shall be borne by the Servicer, where the Servicer has acted in a manner in
     which the Servicer is not relieved from liability as described in Section
     4.5.2 hereof.

     4.5.2     SCOPE OF LIABILITY.  Neither the Servicer or any subservicer
     appointed by it, nor any of their respective partners, directors, officers,
     employees or agents, or its delegees pursuant to Section 11.2.1 hereof,
     shall be under any liability to the Principal, the Master Servicer or the
     Owners of the related Mortgage Loan for any action taken or for refraining
     from the taking of any action in good faith pursuant to this Agreement, or
     for errors in judgment; PROVIDED, HOWEVER, that this provision shall not
     protect the Servicer, any subservicer or any of their respective partners,
     directors, officers, employees or agents, or its delegees pursuant to
     Section 11.2.1 hereof, against any liability which would otherwise be
     imposed by reason of willful misfeasance, bad faith or gross negligence in
     the performance of his or its duties or by reason of reckless disregard of
     his or its obligations and duties hereunder.  The Servicer, any subservicer
     and any of their respective partners, directors, officers, employees or
     agents, or its delegees pursuant to Section 11.2.1 hereof, may rely in good
     faith on any document of any kind prima facie properly executed and
     submitted by any Person respecting any matters arising hereunder.

Section 4.6    [RESERVED]

Section 4.7    INDEMNIFICATION

     4.7.1     SCOPE OF INDEMNITY.  The Servicer hereby agrees to indemnify and
     hold harmless (a) the Master Servicer, (b) the Principal, (c) each Owner of
     any Mortgage Loan and (d) the officers, directors, employees, agents and
     Affiliates of any of the foregoing (any of the foregoing hereinafter
     referred to as the "Indemnified Party"), from and against any and all
     claims, losses, damages, liabilities, fines, settlements, awards, offsets,
     defenses, counterclaims, actions, penalties, forfeitures, legal fees,
     judgments and any other costs, fees and expenses (including, without
     limitation, reasonable attorneys' fees and court costs) (any of the
     foregoing which satisfy the criteria of this paragraph are collectively
     referred to as "Claims"), either directly or indirectly arising out of,
     based upon, or relating to (i) a breach by the Servicer, its officers,
     directors, employees, or agents, or its delegees pursuant to Section 11.2.1
     hereof, of any representation or warranty contained herein, or any failure
     to disclose any matter that makes such representation and warranty
     misleading or inaccurate, or any inaccuracy in material information
     furnished by the Servicer regarding itself, (ii) a breach of any
     representation or warranty made by any Indemnified Party in reliance upon
     any such representation or warranty, failure to disclose, or inaccuracy in
     information furnished by the Servicer regarding itself, (iii) any failure
     of the Servicer, its officers, directors, employees, or agents, or its
     delegees pursuant to Section 11.2.1 hereof, to perform any of its
     obligations under this Agreement in a manner in which the Servicer is not
     relieved from liability as described in Section 4.5.2 hereof and (iv) any
     acts or omissions of the Servicer, its officers, directors, employees, or
     agents, or its delegees pursuant to Section 11.2.1 hereof, in a manner in
     which the Servicer is not relieved from liability as described in Section
     4.5.2 hereof.  Each Indemnified Party

                                      -32-
<PAGE>

      shall cooperate with the Servicer in the defense of such Claims and shall
     not settle any such Claim without the prior written consent of the
     Servicer.

     4.7.2     SURVIVAL OF INDEMNITY.  This indemnification shall survive
     purchase, transfer of any interest in a Mortgage Loan by any indemnified
     party, the Liquidation of such Mortgage Loan, termination of any such
     Servicer's servicing rights with respect to such Mortgage Loan and
     termination or expiration of this Agreement between the Servicer and the
     Principal and its successors and assigns.

Section 4.8    SERVICER'S COMPENSATION

     4.8.1     SERVICING FEE AMOUNT.  In consideration of the services rendered
     under this Agreement, absent default by the Servicer, the Servicer shall on
     each Remittance Date be entitled to a monthly aggregate servicing
     compensation (the "Monthly Servicing Compensation") for the preceding month
     which shall equal the sum of (a) the Servicing Fee payable with respect to
     each Mortgage Loan serviced during such month and (b) any interest earnings
     on each Custodial P&I Account with respect to such month other than
     interest earnings thereon which are payable to the Borrower pursuant to the
     Security Instrument or applicable law, subject to any adjustment for Month
     End Interest as described in Section 7.6.1.  Absent default by the
     Servicer, the Servicer shall also be entitled to retain in addition to the
     Monthly Servicing Compensation any late charges, prepayment fees, penalty
     interest, assumption fees, modification fees or deficiency recovery fees
     paid by the Borrower or any other customary income or any payments of
     interest related to any Prepayment in Full received by the Servicer prior
     to the Determination Date in the month in which such prepayment occurs,
     which amounts are not required to be deposited into the Custodial P&I
     Account.  The Servicer shall be required to pay all expenses incurred by it
     in connection with its servicing activities hereunder and shall not be
     entitled to reimbursement therefor except as specifically provided for
     herein

     4.8.2     SERVICING FEE SOURCE.  The Servicing Fee for each Mortgage Loan
     shall be payable solely from the interest portion of the related Monthly
     Payment paid by the Borrower or other payment of interest paid with respect
     to the Mortgage Loan, whether from the proceeds of foreclosure or any
     judgment, writ of attachment or levy against the Borrower or his assets, or
     from funds paid in connection with any prepayment in full or from Insurance
     Proceeds or Liquidation Proceeds.

                                      -33-
<PAGE>

                                    ARTICLE 5

                         REPRESENTATIONS AND WARRANTIES

Section 5.1    GENERAL

     5.1.1     RELIANCE.  The Master Servicer and the Principal rely upon the
     representations and warranties contained in this Article 5 hereof, in the
     acceptance of the Servicer.  The representations and warranties contained
     herein shall inure to the benefit of the Master Servicer and the Principal,
     and to each Owner of the related Mortgage Loans with respect to such
     Mortgage Loans.

     5.1.2     SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  The representations
     and warranties made herein shall survive termination of this Agreement, and
     shall inure to the benefit of the Master Servicer and the Principal, to
     their respective successors, Affiliates and assigns and each indemnified
     party under Section 4.7.1, and to each Owner of the related Mortgage Loans
     with respect to such Mortgage Loans, and its successors and assigns, in
     each case, regardless of any review or investigation made by or on behalf
     of such parties with respect to any Mortgage Loan.

     5.1.3     BREACH OF REPRESENTATION OR WARRANTY.  Upon breach of any
     requirement or representation or warranty included in this Agreement
     relative to any Mortgage Loan, the Servicer must:

               (a)  Promptly notify the Master Servicer in writing of the nature
                    of the breach, the date on which the breach occurred or
                    began and the Servicer's plans, if any, for curing the
                    breach;

               (b)  Effect a cure of the breach within 30 days after its
                    occurrence or onset and a reasonable extension will be
                    granted if warranted and necessary to fully cure the breach
                    but in no event greater than 90 days; and

               (c)  If no complete cure has been effected within such period in
                    the Master Servicer's reasonable discretion, purchase any
                    Mortgage Loan in which the Owner's interest has been
                    impaired or which, in the reasonable opinion of the Master
                    Servicer, has suffered a material impairment of Value;
                    provided that purchase shall be within five days after
                    receipt by the Servicer of written notice from the Master
                    Servicer requesting the Servicer's purchase of the Mortgage
                    Loan at the Purchase Price.

     5.1.4     ASSIGNMENT OF REPRESENTATIONS AND WARRANTIES.  The Servicer
     agrees that each Owner of the related Mortgage Loans with respect to such
     Mortgage Loans may, at any time, assign the representations and warranties
     given by the Servicer as set forth in this Article 5 which it then
     possesses, in whole or in part, or an undivided interest therein, to one or
     more Persons.

                                      -34-
<PAGE>

Section 5.2    SERVICER REPRESENTATIONS AND WARRANTIES

     The Servicer represents and warrants, as of the date of this Agreement and,
     except as otherwise provided, throughout the term of this Agreement, that
     the statements set forth below in this Section 5.2 are true and accurate.

RELATIVE TO THE SERVICER:

     5.2.1     QUALIFICATION OF SERVICER.  The Servicer is duly incorporated,
     validly existing and in good standing under the laws of the state of its
     incorporation and is duly qualified to do business and is in good standing
     under the laws of each jurisdiction that requires such qualification
     wherein it owns or leases any material properties, or in which it conducts
     any material business or in which the performance of its duties under this
     Agreement would require such qualification, except where the failure to so
     qualify would not have a material adverse effect on (a) the Servicer's
     performance of its obligations under this Agreement, (b) the value or
     marketability of the Mortgage Loans, or (c) the ability to foreclose on the
     related Mortgaged Properties.

     5.2.2     REQUISITE.  The Servicer has the corporate power and authority to
     own its properties and conduct any and all business required or
     contemplated by this Agreement and to perform the covenants and obligations
     to be performed by it under this Agreement.  The Servicer holds all
     material licenses, certificates and permits from all governmental
     authorities necessary for conducting its business as it is presently
     conducted.

     5.2.3     NO CONFLICTS.  The execution and delivery of this Agreement are
     within the corporate power of the Servicer and have been duly authorized by
     all necessary actions on the part of the Servicer; neither the execution
     and delivery of this Agreement by the Servicer, nor the consummation by the
     Servicer of the transactions herein contemplated, nor compliance with the
     provisions hereof by the Servicer, will (i) conflict with or result in a
     breach of, or constitute a default under, any of the provisions of the
     articles of incorporation or bylaws of the Servicer or any law,
     governmental rule or regulation, or any judgment, decree or order binding
     on the Servicer or any of its properties, or any of the provisions of any
     indenture, mortgage, deed of trust, contract or other instrument to which
     it is a party or by which it is bound or (ii) result in the creation or
     imposition of any lien, charge or encumbrance upon any of its properties
     pursuant to the terms of any such indenture, mortgage, deed of trust,
     contract or other instrument.

     5.2.4     ENFORCEABLE AGREEMENT.  This Agreement, when duly executed and
     delivered by the Servicer, will constitute a legal, valid and binding
     agreement of the Servicer, enforceable in accordance with its terms,
     subject, as to enforcement or remedies, to applicable bankruptcy,
     reorganization, insolvency or other similar laws affecting creditors'
     rights generally from time to time in effect, and to general principles of
     equity.

                                      -35-
<PAGE>

     5.2.5      NO CONSENTS.  No consent, approval, order or authorization of
     any governmental authority or registration, qualification or declaration
     with any such authority is required in order for the Servicer to perform
     its obligations under this Agreement.

     5.2.6     AGENCY APPROVAL.  The Servicer has been approved by FNMA or FHLMC
     and will remain approved as an "eligible seller/servicer" of conventional,
     residential mortgage loans as provided in FNMA or FHLMC guidelines and in
     good standing.  The Servicer has not received any notification from FNMA or
     FHLMC that the Servicer is not in compliance with the requirements of the
     approved seller/servicer status or that such agencies have threatened the
     servicer with revocation of its approved seller/servicer status.

     5.2.7     FINANCIAL CONDITION.  The Servicer is not, and, with passage of
     time, does not expect to become, insolvent or bankrupt.  The Servicer shall
     promptly notify the Master Servicer of any material adverse change of its
     financial condition.

     5.2.8     SERVICING.  The servicing practices used by the Servicer under
     this Agreement have been and are in all respects in compliance with all
     federal, state and local laws, rules, regulations and requirements in
     connection therewith and are in accordance with Prudent Servicing
     Practices.

     5.2.9     NO IMPAIRMENT.  There is no action, suit, proceeding or
     investigation pending or, to the best of the Servicer's knowledge after due
     inquiry, threatened, against the Servicer which, either in any one instance
     or in the aggregate, may result in any material adverse change in business
     operations, financial condition, properties or assets of the Servicer, or
     in any material impairment of the right or ability of the Servicer to carry
     on its business substantially as now conducted, or in any material
     liability on the part of the Servicer, or which if adversely determined
     would affect the validity of this Agreement or of any action taken or to be
     taken in connection with the obligations of the Servicer contemplated
     herein, or which would be likely to impair materially the ability of the
     Servicer to perform under the terms of this Agreement.

     5.2.10      NO INQUIRIES.  The Servicer has not been the subject of an
     audit by any of the Master Servicer, FHA, HUD, FDIC, FNMA, FHLMC, GNMA or
     any Primary Mortgage Insurer, which audit included material allegations of
     failure to comply with applicable loan origination, servicing or claims
     procedures, or resulted in a request for repurchase of Mortgage Loans or
     indemnification in connection with the Mortgage Loans.

RELATIVE TO THE MORTGAGE LOANS:

     5.2.11      CUSTODIAL AND ESCROW ACCOUNTS CURRENT.  All Custodial P&I
     Accounts, Custodial T&I Accounts, Custodial Buydown Accounts and Escrow
     Funds are maintained by the Servicer and have been maintained in accordance
     with applicable law and the terms of the Mortgage Loans.  The Escrow Items
     required by the Mortgages

                                      -36-
<PAGE>

     which have been paid to the Servicer for the account of the Borrower are on
     deposit in the appropriate Custodial Account.  All funds received by the
     Servicer in connection with the Mortgage Loans, including, without
     limitation, foreclosure proceeds, Insurance Proceeds, condemnation proceeds
     and principal reductions, have promptly been deposited in the appropriate
     Custodial Account, and all such funds have been applied to reduce the
     principal balance of the Mortgage Loans in question, or for reimbursement
     of repairs to the Mortgaged Property or as otherwise required by applicable
     law.

     5.2.12      INSURANCE MAINTENANCE.  Pursuant to the terms of the related
     Security Instrument, all buildings or other improvements upon the related
     Mortgaged Property are insured by an insurance policy or policies meeting
     the requirements of Articles 15 and 16 hereof.  The related Security
     Instrument obligates the Borrower thereunder to maintain the hazard
     insurance policy at the Borrower's cost and expense and, upon the
     Borrower's failure to do so, authorizes the Mortgagee under the related
     Security Instrument to obtain and maintain such insurance at the Borrower's
     cost and expense and to seek reimbursement therefor from the Borrower.  The
     hazard insurance policy is the valid and binding obligation of the insurer,
     is in full force and effect, and will be in full force and effect and inure
     to the benefit of the Owner of the related Mortgage Loan.  The Servicer and
     the Borrower have not engaged in any act or omission that would impair the
     coverage of any such policy, the benefits of the endorsement provided for
     herein, or the validity and binding effect of either.  The Mortgage Loan
     Documents permit the maintenance of an escrow account to pay the premiums
     for the above mentioned insurance, and the requirement for such escrows has
     not been waived, unless otherwise required by applicable state law.

                                      -37-
<PAGE>

                                    ARTICLE 6

                              CUSTODIAL ACCOUNTING

Section 6.1    IN GENERAL

     6.1.1     CUSTODIAL ACCOUNT ESTABLISHMENT.  The Servicer must establish
     appropriate custodial accounts for the benefit of the Owner of the related
     Mortgage Loans, its successors and assigns for the deposit of funds
     collected in connection with such Mortgage Loans.  All custodial accounts
     and related records must be maintained in accordance with sound and
     controlled accounting practices.

     6.1.2     CUSTODIAL ACCOUNT SEPARATENESS.  At least one custodial account
     for principal and interest (I.E., a Custodial P&I Account), one custodial
     account for taxes and insurance (I.E., a Custodial T&I Account), one
     custodial account for Subsidy Funds, if applicable (I.E., a Custodial
     Subsidy Account) and one custodial account for Buydown Funds, if applicable
     (I.E., a Custodial Buydown Account), shall be established and maintained
     for the Mortgage Loans.  Without the written consent of the Master
     Servicer, funds in these accounts may not be commingled with other funds
     held by the Servicer.  If the Mortgage Loans are owned by more than one
     Owner, the Servicer shall establish an Eligible Account ("Eligible
     Custodial P&I Account") to serve as the Custodial P&I Account.

     6.1.3     CUSTODIAL ACCOUNT MAINTENANCE.  The Servicer must ensure that
     each Custodial P&I Account, Custodial T&I Account, Custodial Subsidy
     Account and Custodial Buydown Account (if applicable) meets the following
     guidelines:

               (a)  the accounts must be Eligible Accounts;

               (b)  the name of each Custodial P&I Account, Custodial T&I
                    Account and Custodial Buydown Account shall include a
                    reference to the name of the Owner of the related Mortgage
                    Loans or the designation of the respective pool or subpool
                    of such Mortgage Loans as prescribed by the Master Servicer;

               (c)  the Servicer must transfer all funds on hand relating to
                    such Mortgage Loans, Monthly Payments due on or after the
                    related Cut-Off Date and any principal prepayments received
                    after the related Cut-Off Date, into the appropriate
                    custodial accounts meeting the requirements of Sections
                    6.1.1 and 6.1.2 hereof;

               (d)  beginning with any payment due on or after the related Cut-
                    Off Date, all collections on the Mortgage Loans must be
                    credited to the appropriate custodial account no later than
                    the first Business Day following receipt;

                                      -38-
<PAGE>

               (e)  (i) the Servicer shall not permit the balance of any
                    Custodial P&I Account to exceed the Threshold Amount or
                    include any amounts then required to be remitted to the
                    Master Servicer Custodial Account pursuant to Section
                    18.3.1, (ii) in the event the Servicer collects amounts in
                    excess of the Threshold Amount prior to the next scheduled
                    transfer of funds to the respective Master Servicer
                    Custodial Account, the Servicer must transfer the excess
                    funds directly to the related Master Servicer Custodial
                    Account by wire before the close of business on any day on
                    which the amount on deposit in such account exceeds the
                    Threshold Amount and (iii) in the event that the Servicer
                    fails to transfer the funds in excess of the Threshold
                    Amount to the related Master Servicer Custodial Account or
                    to remit to the Master Servicer Custodial Account the
                    Monthly Remittance on the Remittance Date pursuant to
                    Section 18.3.1, the Master Servicer is authorized to debit
                    such Custodial P&I Account and transfer such amounts to the
                    related Master Servicer Custodial Account;

               (f)  (i) the Servicer must file with the Master Servicer the
                    appropriate ACH Debit Form for each Custodial P&I Account;
                    (ii) the Master Servicer may monitor the principal balance
                    of each Custodial P&I Account and may issue an ACH debit for
                    amounts on deposit in any such account in excess of the
                    Threshold Amount or otherwise in violation of Section
                    6.1.3(e); (iii) such amounts will immediately be deposited
                    into the appropriate Master Servicer Custodial Account; and
                    (iv) the ability of the Master Servicer to withdraw and
                    remit such funds to the appropriate Master Servicer
                    Custodial Account does not relieve the Servicer of its
                    obligations to remit such funds to the related Master
                    Servicer Custodial Account;

               (g)  upon the establishment of a Custodial P&I Account, Custodial
                    T&I Account or Custodial Buydown Account, the Servicer shall
                    promptly advise the Master Servicer in writing of, or of any
                    change in, the name and address of the depository, the
                    individual employee of the depository who is responsible for
                    overseeing such account, the account number, the title of
                    the account and the individuals whose names appear on the
                    signature card; and

               (h)  (i) establishment and maintenance of the Custodial P&I
                    Account, Custodial T&I Account and Custodial Buydown Account
                    will be an expense of the Servicer; (ii) such custodial
                    accounts may be interest-bearing accounts provided that such
                    accounts comply with all local, state and federal laws and
                    regulations governing interest-bearing accounts and, in the
                    case of a Custodial T&I Account or Custodial Buydown
                    Account, governing Borrower escrow accounts; and (iii) the
                    Servicer must ensure that all interest credited to any
                    custodial account that is not

                                      -39-
<PAGE>

                    due the Borrower is removed by the Servicer within 30 days
                    after receipt of such interest.

     6.1.4     ESCROW INVESTMENT.  If the Servicer elects or is required by law
     to deposit the Borrower's Escrow Funds into an interest-bearing custodial
     account, the Servicer shall either (a) deposit such funds into an account
     which permits withdrawal on demand so as to pay Escrow Items as they come
     due, or (b) invest such funds in an Eligible Account so that adequate funds
     mature the Business Day prior to the date payment is due for each Escrow
     Item.

     6.1.5     CLEARING ACCOUNT.  If the Servicer finds it necessary to use a
     clearing account, the following guidelines must be followed:

               (a)  the titles of such accounts must reflect that they are
                    custodial in nature, and the depository in which the
                    accounts are maintained must be informed in writing that the
                    accounts are custodial accounts;

               (b)  a check drawn on or funds transferred from a Custodial P&I
                    Account or Custodial T&I Account must be deposited to a
                    disbursement clearing account before or at the same time as
                    any checks on the clearing account are issued;

               (c)  a single clearing account must not be utilized both as a
                    collection and disbursement clearing account;

               (d)  the accounts must be held at depository institutions in
                    which accounts are insured by the FDIC, through either the
                    BIF or SAIF;

               (e)  the Servicer must maintain adequate records and audit trails
                    to support all debits and credits of each Borrower's payment
                    records and accounts; and

               (f)  collections deposited to a depository clearing account must
                    be credited to the appropriate custodial account no later
                    than one Business Day following receipt by the Servicer.

     6.1.6     CUSTODIAL BUYDOWN ACCOUNT.  The Servicer must establish a
     separate custodial account to hold Buydown Funds on Mortgage Loans being
     serviced for the Owner of the related Mortgage Loans, its successors and
     assigns.  These accounts must be clearly marked to indicate that the
     Servicer is a custodian for Buydown Funds being held for the Owner of the
     related Mortgage Loans, its successors and assigns.

     6.1.7     MASTER SERVICER CUSTODIAL ACCOUNT.  The Master Servicer shall
     establish a segregated Master Servicer Custodial Account which relates to
     all the Mortgage Loans owned by each common Owner into which the Servicer
     shall remit, on or before each Remittance Date, all amounts due pursuant to
     Section 18.3 hereof.  The name assigned


                                      -40-
<PAGE>

     to each Master Servicer Custodial Account shall include a reference to the
     Owner of the related Mortgage Loans.  The Master Servicer shall be the only
     party authorized to direct the withdrawal of funds from each Master
     Servicer Custodial Account.  In the Master Servicer's reasonable discretion
     and where the Owner of the related Mortgage Loans is a trust which has
     issued mortgage backed securities backed by such Mortgage Loans, the Master
     Servicer may elect to employ a certificate account created under the
     related pooling and servicing agreement as the related Master Servicer
     Custodial Account.

     6.1.8     CUSTODIAL SUBSIDY ACCOUNT.  The Servicer must establish a
     separate custodial account to hold Subsidy Funds on Mortgage Loans being
     serviced for the Owner of the related Mortgage Loans, its successors and
     assigns.  These accounts must be clearly marked to indicate that the
     Servicer is a custodian for Subsidy Funds being held for the Owner of the
     related Mortgage Loans, its successors and assigns.

Section 6.2    CUSTODIAL P&I ACCOUNT

     6.2.1     MANDATORY DEPOSITS.  The following funds must be deposited into
     each related Custodial P&I Account within one Business Day after the
     Servicer's receipt of such amounts, or in the case of clause (d) hereof, on
     the Remittance Date or, in the case of clause (f) hereof, on the Business
     Day after the Servicer's receipt of the Borrower's required monthly payment
     under the related subsidy agreement:

               (a)  Principal collections from related Mortgage Loans (including
                    Prepayments in Full and Curtailments), together with Month
                    End Interest, if applicable, other than the Month End
                    Interest Shortfall;

               (b)  Interest collections from related Mortgage Loans (net of
                    Servicing Fees or other compensation of the Servicer as set
                    forth in Section 4.8.1);

               (c)  Liquidation Proceeds and Insurance Proceeds from related
                    Mortgage Loans other than proceeds held in an escrow account
                    and applied to the restoration and repair of the related
                    Mortgaged Property;

               (d)  related P&I Advances;

               (e)  the proceeds of any purchase, or substitution under a
                    purchase agreement, of a related Mortgage Loan by the
                    Servicer or a Representing Party, or sale of an REO; and

               (f)  an amount from the Custodial Subsidy Account that when added
                    to the Borrower's payment will equal the full monthly amount
                    due under the related Mortgage Note.



                                      -41-
<PAGE>

     6.2.2     OPTIONAL DEPOSITS.  The following funds may, but are not required
     to, be deposited into each related Custodial P&I Account:

               (a)  late charges;

               (b)  prepayment fees;


               (c)  penalty interest;

               (d)  assumption fees; and

               (e)  unapplied funds if the Borrower that remitted such funds is
                    not required to maintain Escrow Funds.

     The Servicer shall maintain separate accounting for each of the foregoing
     types of funds.  Provided that the Servicer is not in default of its
     obligations hereunder, the Servicer may retain any late charges, prepayment
     fees, penalty interest and assumption fees as additional servicing
     compensation.

     6.2.3     PERMISSIBLE WITHDRAWALS.  The Servicer may make withdrawals from
     each related Custodial P&I Account solely for the following:

               (a)  remittances to the related Master Servicer Custodial
                    Account;

               (b)  reimbursement to itself for advances which have been
                    recovered by subsequent collections including late payments,
                    Liquidation Proceeds or Insurance Proceeds, to the extent
                    funds on deposit recovered by such subsequent collections
                    relate to the Mortgage Loans as to which such advances were
                    made;

               (c)  interest earnings on deposits to the related Custodial P&I
                    Account, but only to the extent that such interest has been
                    credited;

               (d)  removal of amounts deposited in error;

               (e)  removal of charges or other such amounts deposited on a
                    temporary basis in the account;

               (f)  removal of Servicing Fees to the extent deposited therein;
                    and

               (g)  termination of the account.

     6.2.4     ACCOUNT BENEFICIARY.  Each Custodial P&I Account (other than any
     Eligible Custodial P&I Account) must be titled to show the respective
     interests of the Servicer as trustee and of the Master Servicer as
     beneficiary.

                                      -42-
<PAGE>

     6.2.5     USE OF ACCOUNTS.  The Servicer shall not use the Custodial P&I
     Account as a collection clearing account.

Section 6.3    CUSTODIAL T&I ACCOUNT

     6.3.1     MANDATORY DEPOSITS.  The following funds must be deposited into
     each respective Custodial T&I Account:

               (a)  related Borrowers' Escrow Funds;

               (b)  related T&I Advances;

               (c)  the remaining balance of Title Insurance loss drafts;

               (d)  rent receipts to offset any related T&I Advances by the
                    Servicer;

               (e)  unapplied funds; and

               (f)  Liquidation Proceeds from a related Mortgage Loan that
                    offset a deficit balance in the related Borrower's Escrow
                    Funds.

     6.3.2     PERMISSIBLE WITHDRAWALS.  With respect to each related Borrower,
     the Servicer may make withdrawals from each respective Custodial T&I
     Account to the extent of the balance of such related Borrower's Escrow
     Funds for the following:

               (a)  timely payment of such related Borrower's taxes and
                    insurance premiums;

               (b)  refunds to such related Borrower of excess Escrow Funds
                    collected from him;

               (c)  recovering T&I Advances made with respect to such related
                    Borrower by the Servicer;

               (d)  payment of interest, if required, to such related Borrower
                    on his Escrow Funds;

               (e)  removal of any deposits made in error; and

               (f)  termination of the account.

     6.3.3     ACCOUNT REQUIREMENTS.  Each Custodial T&I Account is to be
     designated in the name of the Servicer acting as an agent for the
     individual related Borrowers to make such Escrow Item payments in order to
     show that the account is custodial in nature.  The Servicer is required to
     keep records identifying each Borrower's payment deposited into the
     account.


                                      -43-
<PAGE>

     6.3.4     ACCOUNT BALANCE.  The Servicer must never allow any Custodial T&I
     Account to become overdrawn as to any individual related Borrower.  If
     there are insufficient funds in the account, the Servicer must advance its
     own funds to cure the overdraft.

Section 6.4    ELIGIBLE ACCOUNT INVESTMENTS

     6.4.1     ELIGIBLE INVESTMENTS PERMITTED.  Unless prevented or restricted
     by written notice of the Master Servicer pursuant to Section 6.4.5 hereof,
     the Servicer may, from time to time, withdraw funds from an Eligible
     Account, other than a Custodial T&I Account, and immediately invest such
     funds in Eligible Investments in accordance with this Agreement.  Upon the
     maturity of such Eligible Investments, such funds shall be redeposited into
     the Eligible Account which they were drawn from or into the Master Servicer
     Custodial Account.  Where the Owner of the related Mortgage Loans is a
     trust which has issued mortgage backed securities securitized by such
     Mortgage Loans and where a statistical rating agency selected by such Owner
     to rate such mortgage backed securities shall require that Eligible
     Investments can only be made if such funds remain within an Eligible
     Account, then the Master Servicer shall notify the Servicer, pursuant to
     Section 6.4.5 hereof, that the Servicer's ability to invest in Eligible
     Investments shall be so restricted and that no withdrawal of funds from an
     Eligible Account for the purpose of making an Eligible Investment shall be
     allowed.

     6.4.2     ELIGIBLE INVESTMENT RESTRICTIONS.  No Eligible Investment shall
     be sold or disposed of at a gain prior to maturity unless the Servicer has
     obtained the consent of the Master Servicer.

     6.4.3     ELIGIBLE INVESTMENT INCOME.  All income (other than any gain from
     a sale or disposition of the type referred to in Section 6.4.2 hereof)
     realized from any such Eligible Investment shall be for the benefit of the
     Servicer as additional servicing compensation.

     6.4.4     ELIGIBLE INVESTMENT LOSSES.  The amount of any losses incurred in
     respect of any investments permitted under this Section 6.4 shall be
     deposited in the Master Servicer Custodial Account by the Servicer out of
     its own funds immediately as realized.  The Master Servicer may, in its
     reasonable discretion, from time to time, require the Servicer to provide a
     reasonable amount of security to cover the risk of such investment losses.
     To the extent that the Servicer shall not immediately deposit the amount of
     such losses in the Master Servicer Custodial Account, the Master Servicer
     may immediately act against such security as well as pursue all other
     remedies permitted by law.

     6.4.5     ELIGIBLE INVESTMENT LIMITATIONS.  At any time, the Master
     Servicer, in its reasonable discretion, may restrict or totally limit the
     ability of the Servicer to invest in Eligible Investments pursuant to this
     Section 6.4.

                                      -44-
<PAGE>

     6.4.6     ELIGIBLE INVESTMENTS REPORTS.  The Servicer shall, at any time
     provide such information and reports regarding its Eligible Investments
     under this Agreement as the Master Servicer may request.

                                      -45-
<PAGE>

                                    ARTICLE 7

                            MORTGAGE LOAN ACCOUNTING

Section 7.1    IN GENERAL

     7.1.1     MORTGAGE LOAN ACCOUNTING PRACTICES.  The Servicer shall
     administer the application and accounting of payments made on the Mortgage
     Loans in accordance with the provisions of this Agreement.

     7.1.2     RECORD KEEPING.  The Servicer must maintain complete and accurate
     records of all transactions affecting any Mortgage Loan.  Each Mortgage
     Loan must be clearly marked to indicate that it is being serviced for the
     Owner of such Mortgage Loan, its successors and assigns.

     7.1.3     RECORD REVIEW.  The Master Servicer and its designee have the
     right to:

               (a)  conduct reviews and audits of the Servicer's records and
                    operating procedures during any Business Day; and

               (b)  examine the Servicer's financial records, the Borrowers'
                    Escrow Funds records and any and all other relevant
                    documents and materials, whether held by the Servicer or by
                    another on behalf of the Servicer, to ensure compliance with
                    terms and conditions of this Agreement and the Master
                    Servicer's standards.

Section 7.2    MORTGAGE LOAN RECORDS

     7.2.1     ACCOUNT RECORDS.  Permanent Mortgage Loan account records must be
     maintained by the Servicer for each Mortgage Loan.  Each account record
     must be identifiable by the Servicer Loan Number.

     7.2.2     ACCOUNT RECORD INFORMATION.  The Servicer shall maintain the
     following information for each Mortgage Loan in a readily accessible form:

               (a)  the Master Servicer Loan Number;

               (b)  the current Unpaid Principal Balance;

               (c)  the date of receipt, amount of payment and distribution of
                    such payment for each Monthly Payment received with respect
                    to such Mortgage Loan as to each related Due Date;

               (d)  for ARM Loans, the current Mortgage Interest Rate, all
                    limitations contained in the Mortgage Note with respect to
                    periodic adjustments in 

                                      -46-
<PAGE>

                    the Mortgage Interest Rate, the scheduled Interest 
                    Adjustment Dates, Payment Adjustment Dates, the Gross 
                    Margin and the Index;

               (e)  other transactions affecting the amounts due from or payable
                    to the related Borrower;

               (f)  the current outstanding balances of principal and interest
                    deposits, advances, taxes and insurance deposits and
                    unapplied payments with respect to such Mortgage Loan;

               (g)  any overdraft of the Borrower's Escrow Funds;

               (h)  any servicing reports or loan histories; and

               (i)  any other information customarily maintained by a mortgage
                    loan servicer of one to four family residential mortgages.

     7.2.3     ACCOUNTING PRACTICE.  Except as otherwise provided herein, all
     Mortgage Loan account records must be maintained according to (a) the
     Uniform Single Audit Program for Mortgage Bankers and (b) where applicable,
     sound and generally accepted accounting practices.

     7.2.4     ACCESS TO CERTAIN DOCUMENTATION AND INFORMATION REGARDING THE
     MORTGAGE LOANS.  At the request of the Master Servicer, the Servicer shall
     provide to the Master Servicer, the Office of Thrift Supervision, the FDIC
     and the supervisory agents and examiners of the Office of Thrift
     Supervision and the examiners of the FDIC, as appropriate, access to the
     documentation regarding the Mortgage Loans required by applicable
     regulations of the Office of Thrift Supervision or the FDIC, such access
     being afforded without charge but only upon reasonable request and during
     normal business hours at the offices of the Servicer designated by it.  The
     Servicer shall permit such representatives to photocopy any such
     documentation and shall provide equipment for that purpose at a charge
     reasonably approximating the cost of such photocopying to the Servicer.

Section 7.3    ACCOUNTING PROCEDURES

     7.3.1     PRINCIPAL AND INTEREST COMPUTATION.  All Mortgage Loans must
     amortize with interest calculated and paid in arrears.  Under this method,
     the interest due from a Borrower on a Due Date is calculated based on (a)
     the Unpaid Principal Balance of the related Mortgage Loan prior to
     application of the principal portion of the related current Monthly
     Payment, (b) thirty days interest at the related Mortgage Interest Rate and
     (c) adjusted as herein provided for the effects of Curtailments, Partial
     Liquidation Proceeds, Prepayments in Full and Liquidations.  The calculated
     interest portion is then subtracted from the related Monthly Payment to
     obtain the principal portion.  The principal portion is then applied to the
     Unpaid Principal Balance of the related Mortgage Loan.  The amount to be
     applied to interest for a multiple installment must

                                      -47-
<PAGE>

     be calculated using the Unpaid Principal Balance of the related Mortgage
     Loan remaining after the previous interest calculation and principal
     application.

     7.3.2     AMORTIZATION REQUIREMENT.  The amortization of each Mortgage Loan
     must reduce to zero, or as to Balloon Loans, the respective Balloon Amount,
     at the end of the Mortgage Loan term through the application of regular
     monthly payments. Capitalization of interest is not permitted, except as
     provided by the terms of any Mortgage Loan that provides for negative
     amortization.

     7.3.3     NEGATIVE AMORTIZATION.  To the extent any Mortgage Loan provides
     for negative amortization, such as a GPM or GPARM Loan, the Servicer must
     assure that the Unpaid Principal Balance of such Mortgage Loan never
     exceeds the related Maximum Negative Amortization Amount, and that the
     related Monthly Payment is recast as provided for in the Mortgage Note such
     that the balance fully amortizes within the remaining term of such Mortgage
     Loan.

     7.3.4     INTEREST CALCULATIONS.  Monthly interest calculations for periods
     of a full month must be based on a 30-day month and a 360-day year.
     Factors used for such calculations should be carried to ten decimal places.
     The dollar amount of any interest payment shall be carried out to four
     decimal places.  Interest calculations for a period of less than a full
     month must be based on a 365-day year.

     7.3.5     BUYDOWN LOANS.  The Servicer must amortize a Mortgage Loan for
     which Buydown Funds are applied at the Mortgage Interest Rate, not at the
     buy-down rate, in order to ensure that payments are collected to amortize
     properly the Mortgage Loan.

Section 7.4    APPLICATION PROCEDURE

     7.4.1     APPLICATION PRIORITY.  A payment from a Borrower will normally
     consist of interest, principal, deposits for insurance and taxes and late
     charges, if applicable.  Payments received from Borrowers must be applied
     in the order provided for in the related Security Instrument.  To the
     extent not inconsistent with the related Security Instrument, such payments
     shall be applied in the following order:

               (a)  required monthly interest;

               (b)  required monthly principal;

               (c)  deposits for taxes and insurance;

               (d)  prepayment charges; and

               (e)  any fees which may be retained by the Servicer, including
                    late charges, returned check fees, and assumption fees.


                                      -48-
<PAGE>

     7.4.2     REAPPLICATION OF PRIOR PAYMENTS.  The Servicer may not reapply
     prior prepayments or accumulated Curtailments for payment of subsequent
     installments.

     7.4.3     ADVANCE PAYMENTS.  Payments made by the Borrower to satisfy
     future installments must be accounted for as prepaid installments of
     principal and interest.  The Servicer should contact the Borrower if there
     is a question about the Borrower's intention in making any unscheduled
     payment.

Section 7.5    CURTAILMENTS

     7.5.1     CURTAILMENT AMOUNT.  The Servicer may accept Curtailments at any
     time.  If a Mortgage Loan is delinquent, funds received must first be
     applied to bring the Mortgage Loan current.  If there are excess funds
     after the application of amounts received from the Borrower to pay the
     related Monthly Payment, the excess funds represent a Curtailment and may
     be applied as a partial principal prepayment.

     7.5.2     CURTAILMENT APPLICATION.  If a Curtailment is received on or
     after the Due Date, the Servicer may either (i) retroactively apply the
     Curtailment to the Scheduled Principal Balance of the related Mortgage Loan
     as of the Due Date, or (ii) to the extent permitted by law and the Mortgage
     Loan, apply such Curtailment at the end of the current period.  The
     interest portion of the next installment due is then calculated based on
     the Unpaid Principal Balance of the related Mortgage Loan after application
     of the Curtailment.

     7.5.3     EFFECT OF CURTAILMENT.  A Curtailment may not be used to reduce
     the related Monthly Payment or the related Mortgage Interest Rate for any
     Mortgage Loan, or to postpone the Due Date of any payment.

     7.5.4  CURTAILMENT TRANSMISSION.  Each Curtailment must be deposited into
     the related Custodial P&I Account within one Business Day after receipt and
     must be remitted no later than the regularly scheduled Monthly Remittance
     to the related Master Servicer Custodial Account.

Section 7.6    LIQUIDATIONS

     7.6.1     MONTH END INTEREST.  If a Prepayment in Full of a Mortgage Loan
     occurs, such prepayment is received by the Servicer on or after the
     Determination Date in the month in which such prepayment occurs, and the
     Servicer does not receive a full 30 days of interest (calculated on a 30-
     day month, 360-day year basis) on the prepaid amount for the month in which
     such Prepayment in Full occurs, the Servicer must pay, to the extent of the
     portion of its Monthly Servicing Compensation pursuant to clause (a) of
     Section 4.8.1 for all Mortgage Loans, the Month End Interest
     on all such Mortgage Loans so prepaid in full on the Remittance Date in the
     month following the month of such prepayment.  To the extent that the
     portion of Servicer's Monthly Servicing Compensation pursuant to clause (a)
     of Section 4.8.1 for all Mortgage Loans is insufficient funds to pay all
     such Month End Interest, the resulting Month End Interest


                                      -49-
<PAGE>


     Shortfall for any month shall not be recoverable from the Servicer or any
     other source in the future.  The payment of Month End Interest by the
     Servicer, as provided for above, shall not be an "advance" and shall not be
     reimbursable from the proceeds of any Mortgage Loan.

     7.6.2     LIQUIDATION REPORTS.  The Servicer will report information with
     respect to Liquidations in the monthly reports delivered to the Master
     Servicer by the eighteenth calendar day of each succeeding month.

     7.6.3     DEPOSIT OF FUNDS.  Within one day after the Liquidation of a
     Mortgage Loan, the Servicer shall deposit the related Liquidation Proceeds
     together with the related Month End Interest into the related Custodial P&I
     Account.

     7.6.4     DOCUMENT REQUEST.  Within five Business Days after any
     Liquidation, the Servicer must complete and send a Request for Release of
     Documents to the Master Servicer.

Section 7.7    REALIZED LOSSES

     7.7.1     LIQUIDATION REALIZED LOSS DETERMINATION.  With respect to the
     calculation of a Realized Loss suffered on the related Mortgage Loan on a
     Liquidation of such Mortgage Loan, the amount of such Realized Loss is
     equal to (a) the sum of:

               (i)       Unpaid Principal Balance;

               (ii)      unpaid interest accrued at the related Mortgage
                         Interest Rate;

               (iii)     attorneys' fees and other foreclosure and sale
                         expenses;

               (iv)      unpaid taxes;

               (v)       unpaid property maintenance expenses;

               (vi)      unpaid insurance premiums; and

               (vii)     hazard loss expenses;

     less (b) the sum of:

               (i)       the balance of Escrow Funds, if any;

               (ii)      any refund of any Hazard Insurance premium;

               (iii)     rental income receipts;

               (iv)      Insurance Proceeds;

                                      -50-
<PAGE>

               (v)       cash proceeds of any foreclosure sale;

               (vi)      proceeds from sale of a REO; and

               (vii)     any amounts received pursuant to bankruptcy or
                         insolvency proceedings.

     7.7.2     BANKRUPTCY REALIZED LOSS DETERMINATION.  With respect to the
     calculation of a Realized Loss on a Mortgage Loan subject to a Deficient
     Valuation, the amount of the Realized Loss is the difference between the
     Unpaid Principal Balance of the related Mortgage Loan immediately prior to
     the Deficient Valuation and the Unpaid Principal Balance as reduced by the
     Deficient Valuation.

     7.7.3     REPORTING REQUIREMENT.  As to any defaulted Mortgage Loan, the
     Servicer must account to, and report in writing to, the Master Servicer as
     to any Realized Loss (or gain) upon the Liquidation or Deficient Valuation
     in respect of such Mortgage Loan.

     7.7.4     SERVICER'S LIABILITY.  Except in the case of a purchase by the
     Servicer of a Mortgage Loan from the Owner thereof due to a breach of a
     representation or warranty by the Servicer or failure to perform the
     servicing procedures as set forth in this Agreement, the Servicer is not
     liable for any Realized Loss on any Mortgage Loan.

                                      -51-
<PAGE>

                                    ARTICLE 8

                                    ARM LOANS

Section 8.1    ARM LOAN SERVICING

     8.1.1     IN GENERAL.  It is the Servicer's responsibility to enforce each
     ARM Loan (and any other Mortgage Loan) according to its terms and in
     conformity with all applicable law.  The Servicer's records must, at all
     times, reflect the then-current Mortgage Interest Rate and Monthly Payment
     for such ARM Loan and the Servicer must timely notify the Borrower of any
     changes to the Mortgage Interest Rate and/or the Borrower's Monthly
     Payment.

     8.1.2     SERVICER'S LIABILITY.  If the Servicer fails to make either a
     timely or accurate adjustment to the Mortgage Interest Rate or Monthly
     Payment for an ARM Loan or to notify the Borrower of such adjustments, and
     subsequently receives a short Monthly Payment, the Servicer must pay from
     its own funds any shortage until the Servicer has made the necessary
     corrections in conformance with applicable law so as to secure the correct
     Monthly Payment from the Borrower.  In the event that such error results in
     the Borrower making a Monthly Payment in excess of the amount which he
     should have made if such adjustment were properly calculated, then the
     Servicer shall promptly (a) make the required adjustment to the Borrower's
     Monthly Payment and Mortgage Interest Rate so that they reflect the amounts
     as properly calculated as of the related Payment Adjustment Date, (b)
     refund to the Borrower the amount of any such excess received by the
     Servicer from the related Payment Adjustment Date and (c) deduct from the
     respective Custodial P&I Account or the Master Servicer Custodial Account
     the amount of such refund to reimburse the Servicer for making such refund.
     If the Servicer's failure to make a scheduled change affects the Owner of
     the ARM Loan's rights to make future adjustments under the terms of the ARM
     Loan, the Servicer shall be required to purchase the ARM Loan.  Any amounts
     paid by the Servicer pursuant to this Section shall not be an advance and
     shall not be reimbursable from the proceeds of any Mortgage Loan.

     8.1.3     ADJUSTMENT REPORTS.  All Mortgage Interest Rate and Monthly
     Payment adjustments must be reported to the Master Servicer in a ARM Loan
     change report.

     8.1.4     SUBSTITUTE INDEX.  If the Index required to be used to determine
     the Mortgage Interest Rate for a Mortgage Loan is not available on an
     Interest Adjustment Date, the Servicer, after consultation with the Master
     Servicer, will select an alternative interest rate index that is readily
     verifiable by Borrowers.

Section 8.2    NOTICE OF PERIODIC ADJUSTMENT

     8.2.1     NOTICE REQUIREMENT.  The Notice of Periodic Adjustment is the
     legal and official announcement to the Borrower of an ARM Loan of a change
     in the Mortgage Interest Rate or the Monthly Payment.  The Servicer must
     send this notice to the

                                      -52-
<PAGE>

     Borrower, as stated in the related Mortgage Note and in accordance with
     applicable law, and at least 25 days before each Payment Adjustment Date.

     8.2.2     NOTICE CONTENTS. Each Notice of Periodic Adjustment pertaining to
     an ARM Loan shall include the following information:

               (a)  the new Mortgage Interest Rate;

               (b)  the date on which the new Mortgage Interest Rate becomes
                    effective, that is, the Interest Adjustment Date;

               (c)  the Index value on which the new Mortgage Interest Rate is
                    based, the Gross Margin, and how the new Mortgage Interest
                    Rate was calculated;

               (d)  the projected Unpaid Principal Balance on the upcoming
                    Payment Adjustment Date, assuming timely payment of the
                    remaining Monthly Payments due prior to the Payment
                    Adjustment Date;

               (e)  the new Monthly Payment;

               (f)  the Payment Adjustment Date, that is, the date on which the
                    new Monthly Payment becomes effective;

               (g)  the dates of the next Interest Adjustment Date and Payment
                    Adjustment Date;

               (h)  the fact that the Borrower may repay the ARM Loan in whole
                    or in part without penalty at any time;

               (i)  the title and telephone number of an employee of the
                    Servicer who can answer questions about the notice; and

               (j)  if the Borrower is eligible and has the right to convert the
                    ARM Loan to a fixed rate Mortgage Loan, such shall be
                    stated.

     8.2.3     LEGAL COMPLIANCE.  The Servicer also must ensure that the Notice
     of Periodic Adjustment provides the Borrower with any other disclosure
     information required by applicable federal or state laws or regulations.

Section 8.3    ARM LOAN CONVERSION

     8.3.1     SERVICER'S DETERMINATION.  In the event a Borrower with a
     convertible ARM Loan exercises its option to convert such Mortgage Loan to
     a fixed interest rate, the Servicer will determine whether the conditions
     and qualifications for conversion have been met and determine the fixed
     rate to be applied to such Mortgage Loan pursuant to the terms of the
     related Mortgage Note.


                                      -53-
<PAGE>

     8.3.2     CONVERSION NOTIFICATION.  Upon any such conversion, the Servicer
     shall prepare an ARM Loan conversion notification and send such
     notification to the Master Servicer within three Business Days after the
     conversion.

     8.3.3     PURCHASE BY SERVICER.  If a Converted Mortgage Loan is owned by a
     trust which has issued mortgage-backed securities, then the Servicer will
     purchase such Converted Mortgage Loan from the applicable trust at the
     Purchase Price by depositing the Purchase Price into the respective
     Custodial P&I Account.

                                      -54-
<PAGE>

                                    ARTICLE 9

                               MORTGAGE LOAN FILES

Section 9.1    OWNER MORTGAGE LOAN FILES

     9.1.1     OWNER MORTGAGE LOAN FILE REQUIREMENTS.  For each Mortgage Loan,
     the Servicer will ensure that an appropriate Custodian will maintain an
     Owner Mortgage Loan File on behalf of the Owner of such Mortgage Loan that
     contains each of the following documents:

               (a)  the original related Mortgage Note pertaining to such
                    Mortgage Loan endorsed by the respective prior owner of such
                    Mortgage Loan to the Owner of such Mortgage Loan, in the
                    manner described in Section 9.3.1 hereof (which may be
                    endorsed in blank); the Servicer will assure that the
                    related Mortgage Note shall include all prior and
                    intervening endorsements as are necessary to show a complete
                    chain of endorsements from the respective Loan Originator to
                    the respective prior owner of such Mortgage Loan;

               (b)  either the recorded original related Security Instrument
                    pertaining to such Mortgage Loan, together with any addenda
                    and riders, certified by the recording office, or, if the
                    related Security Instrument is in the process of being
                    recorded, a photocopy of the related Security Instrument,
                    certified by an Officer of the respective prior owner of
                    such Mortgage Loan or by the applicable title insurance
                    company, closing/settlement/escrow agent or company or
                    closing attorney to be a true and correct copy of the
                    related Security Instrument transmitted for recordation;

               (c)  either a recorded original Assignment of the related
                    Security Instrument from the respective prior owner of such
                    Mortgage Loan assigning the related Security Instrument to
                    the Owner of such Mortgage Loan, in the manner described in
                    Section 9.3.2 hereof (which may be assigned in blank),
                    certified by the recording office, or, if such Assignment is
                    in the process of being recorded, a photocopy of the related
                    Security Instrument transmitted for recordation certified by
                    an Officer of the respective prior owner of such Mortgage
                    Loan to be a true and correct copy of such Assignment
                    submitted for recordation; if recordation is waived by the
                    Servicer pursuant to the provisions of Section 11.6.4
                    hereof, the Custodian will hold such an Assignment in
                    recordable form (which may be assigned in blank);

               (d)  each recorded original intervening Assignment of the
                    Security Instrument as is necessary to show a complete chain
                    of title from the respective Loan Originator to the
                    respective prior owner of such Mortgage Loan or, if any such
                    original is unavailable because it is in the process of
                    being recorded, a photocopy of such intervening Assignment
                    certified by an

                                      -55-
<PAGE>

                    Officer of the prior owner of such Mortgage Loan to be 
                    a true and correct copy of such intervening Assignment
                    submitted for recordation;

               (e)  an original Title Insurance policy pertaining to such
                    Mortgage Loan or, with respect to loans secured by
                    properties in jurisdictions where title policies are not
                    available, the original attorney's opinion of title; in the
                    event that the policy has not been issued or is not
                    otherwise available, (i) a written binding ALTA commitment
                    for such a policy (or a photocopy thereof) issued by the
                    respective title insurance company or (ii) a Preliminary
                    Title Report (or a photocopy thereof) if the Mortgaged
                    Property are in a state designated by the Master Servicer as
                    a Preliminary Title Report state;

               (f)  for each Mortgage Loan listed on Schedule I to this
                    Agreement which is required to have Primary Mortgage
                    Insurance pursuant to this Agreement or the related Mortgage
                    Loan Documents, a Primary Mortgage Insurance policy or a
                    certificate of Primary Mortgage Insurance (or a photocopy
                    thereof) issued by the respective insurer or its agent
                    indicating that such a policy is in effect;

               (g)  for each Mortgage Loan listed on Schedule I to this
                    Agreement which is required to have Pool Insurance pursuant
                    to this Agreement or the related Mortgage Loan Documents, a
                    Pool Insurance certificate (or a photocopy thereof) issued
                    by the respective insurer or its agent indicating the
                    eligibility of such Mortgage Loan for such Pool Insurance;

               (h)  originals of each assumption agreement, modification,
                    written assurance or substitution agreement pertaining to
                    such Mortgage Loan, if any, or, if any such document is in
                    the process of being recorded, a photocopy of such document,
                    certified by an Officer of the respective prior owner of
                    such Mortgage Loan or by the applicable title insurance
                    company, closing/settlement/escrow agent or company or
                    closing attorney to be a true and correct copy of such
                    document transmitted for recordation;

               (i)  for each Mortgage Loan which is secured by a residential
                    long-term lease, a copy of the lease with evidence of
                    recording indicated thereon, or, if the lease is in the
                    process of being recorded, a photocopy of the lease,
                    certified by an Officer of the respective prior owner of
                    such Mortgage Loan or by the applicable title insurance
                    company, closing/settlement/escrow agent or company or
                    closing attorney to be a true and correct copy of the lease
                    transmitted for recordation; and

               (j)  for each Mortgage Loan secured by Co-op Shares, the
                    originals of the following documents or instruments:

               (i)   The stock certificate;

                                      -56-
<PAGE>
               (ii)  The stock power executed in blank;

               (iii) The executed proprietary lease;

               (iv)  The executed recognition agreement;

               (iv)  The executed assignment of recognition agreement;

               (v)   The executed UCC-1 financing statement with evidence of
                     recording thereon; and

               (vi)  Executed UCC-3 financing statements or other appropriate
                     UCC financing statements required by state law, evidencing
                     a complete and unbroken line from the mortgagee to the
                     Trustee with evidence of recording thereon (or in a form
                     suitable for recordation).

     9.1.2     CUSTODIAN.  The Custodian will hold originals of all documents
     included in each Owner Mortgage Loan File charged to his custody except
     that copies of recorded Security Instruments or Assignments will be held if
     the originals are held by the recording office.  If the original Security
     Instrument, Assignment from the respective prior owner of the related
     Mortgage Loan to the Owner of the related Mortgage Loan or any prior
     Assignment of the Security Instrument has not been delivered to the
     Custodian on the date of the transfer of ownership of such Mortgage Loan to
     the Owner because it is in the process of being recorded, the Servicer will
     within five Business Days after its receipt of the original recorded
     document, deliver it to the Custodian.  The Servicer will promptly deliver
     to the Custodian any other Mortgage Loan Document to be included in an
     Owner Mortgage Loan File, charged to the custody of the Custodian, that
     comes into Servicer's possession.

          Notwithstanding any other provision of this Agreement, to the extent
     that certain Mortgage Loans are owned by a trust which has issued mortgage-
     backed securities which are securitized by such Mortgage Loans and the
     Master Servicer has given prior written notice to the Servicer, the related
     Owner and the existing Custodian, if any, the trustee acting on behalf of
     such trust shall be regarded as the Custodian hereunder and the custodial
     arrangements pursuant to the related Pooling and Servicing Agreement shall
     instead control the custody of the related Mortgage Loan Documents.

     9.1.3     RELEASE OF DOCUMENTS FROM OWNER MORTGAGE LOAN FILE.  In the event
     any document contained in an Owner Mortgage Loan File is needed by the
     Servicer for the proper servicing of a Mortgage Loan, the Servicer must
     send to the Owner of the related Mortgage Loan or the Custodian, as the
     case may be, a request for release of documents.  The Master Servicer
     hereby authorizes the Owner of the related Mortgage Loan, or the Custodian,
     as the case may be, to release such Mortgage Loan Documents after receipt
     of such Servicer's request (i) upon payment in full of such Mortgage Loan,
     (ii) when necessary for foreclosure or (iii) for such other cause as the
     Master

                                      -57-
<PAGE>

     Servicer deems appropriate, in its reasonable discretion.  The Servicer
     will be responsible for such Mortgage Loan Documents while they are in
     transit and while they are in its possession and will be deemed to hold
     such Mortgage Loan Documents in trust for the benefit of the Owner of the
     related Mortgage Loan.  If such Mortgage Loan has not been paid in full or
     otherwise liquidated, the Servicer shall promptly return such Mortgage Loan
     Documents when they are no longer required.  Notwithstanding the foregoing,
     unless such Mortgage Loan has been liquidated or the related Mortgage Loan
     Documents have been delivered to an attorney, a public trustee or other
     public official in order to foreclose on the related Mortgaged Property,
     all such Mortgage Loan Documents released by the Owner of the related
     Mortgage Loan, or the respective Custodian, as the case may be, must be
     returned within 21 calendar days after their release.

     9.1.4     EXECUTION BY OWNER.  In the event the Owner of the related
     Mortgage Loan's signature is required on any document with respect to a
     Mortgage Loan for any reason, including payment in full, assumption or
     foreclosure, the Servicer shall deliver to the Master Servicer a written
     notice requesting that the Owner of the related Mortgage Loan execute such
     documents and certifying as to the reason such documents are required.
     Upon receipt of such executed documents, the Servicer will record, file or
     deliver such documents as appropriate for the proper servicing of such
     Mortgage Loan.

     9.1.5     CUSTODIAL FEES.  The Servicer is responsible for the related
     ongoing fees of each Custodian.  Each Custodian shall bill the Servicer
     directly for its fees. If for any reason at any time the Master Servicer
     pays custodial fees, the Servicer will promptly reimburse the Master
     Servicer for such payments.

     9.1.6     REPRESENTING PARTY OFFICERS' CERTIFICATE.  If it is necessary for
     the respective Representing Party to deliver an Officers' certificate with
     respect to the existence of a Title Insurance policy or a Primary Mortgage
     Insurance policy for several Mortgage Loans, the Master Servicer may
     consent to the delivery of a single Officers' certificate of the respective
     Representing Party for a schedule of mortgage loans in lieu of a separate
     Officers' certificate for each such Mortgage Loan.










                                      -58-
<PAGE>

     9.1.7     FINANCING ARRANGEMENTS.  To the extent that the Owner of a
     Mortgage Loan shall utilize such Mortgage Loan as collateral for a
     financing, the endorsements which are required pursuant to Section 9.1.1
     hereof with respect to the original related Mortgage Note, the original
     related Security Instrument, and the original and each intervening
     Assignment of the related Security Instrument shall also include such
     further endorsements as such Owner, in accordance with the relevant
     financing documents, shall direct.

Section 9.2    SERVICER MORTGAGE LOAN FILES

     9.2.1     SERVICER MORTGAGE LOAN FILE REQUIREMENTS.  The Servicer must
     maintain a Servicer Mortgage Loan File for each Mortgage Loan, which may be
     distributed among several different files, each of which shall be clearly
     marked with the Servicer Loan Number and shall be readily accessible to the
     Master Servicer during regular business hours, that includes the following:

               (a)  copies of each of the documents listed in Section 9.1.1 that
                    are held by the Custodian;

               (b)  an original Hazard Insurance policy, or a copy thereof, or a
                    certificate of insurance issued by the applicable insurer or
                    its agent indicating such a policy is in effect for the
                    related Mortgaged Property;

               (c)  a Flood Insurance policy or a certificate of insurance
                    issued by the insurer or its agent indicating that such a
                    policy is in effect with respect to the related Mortgaged
                    Property, if Flood Insurance is required pursuant to the
                    provisions of Section 15.4 or Section 16.6 hereof for such
                    Mortgaged Property;

               (d)  originals or copies of all documents submitted to a Primary
                    Mortgage Insurer for credit and property underwriting
                    approval with respect to the related Mortgaged Property, if
                    Primary Mortgage Insurance is required pursuant to the
                    provisions of Section 15.2 hereof for such Mortgaged
                    Property;

               (e)  the originals of all RESPA and Regulation Z disclosure
                    statements executed by the Borrower with respect to such
                    Mortgage Loan;

               (f)  the related Appraisal Report made at the time such Mortgage
                    Loan was originated;

               (g)  the HUD-1 or other settlement statement for the purchase or
                    refinance, as the case may be, of the Mortgaged Property by
                    the Borrower and mortgagor under the related Mortgage Note
                    and Security Instrument with respect to such Mortgage Loan;



                                      -59-
<PAGE>

               (h)  evidence of any tax service contract, if any;

               (i)  copies of documentation, including the appropriate approval
                    by the Master Servicer, relating to any modifications to the
                    related original Mortgage Loan Documents;

               (j)  documentation, including the appropriate approval by the
                    Master Servicer, relating to any releases of any collateral
                    supporting such Mortgage Loan;

               (k)  collection letters or form notices sent to the Borrower with
                    respect to such Mortgage Loan, but only if the Servicer does
                    not maintain separate collection files, including all
                    collection letters or notices, indexed by Borrower;

               (l)  foreclosure correspondence, bankruptcy correspondence and
                    legal notifications, if applicable with respect to the
                    related Mortgaged Property; and

               (m)  all other related Mortgage Loan Documents which are
                    customarily maintained in accordance with Prudent Servicing
                    Practices in a mortgage loan file in order to properly
                    service a mortgage loan including, without limitation,
                    documents regarding title claims.

     9.2.2     SERVICER MORTGAGE LOAN FILE ACCESS.  The Servicer acknowledges
     that each Servicer Mortgage Loan File will be held in trust for the Owner
     of such Mortgage Loan.  The Servicer further acknowledges that the Master
     Servicer may, from time-to-time, request immediate delivery of any or all
     Mortgage Loan records and documents to the Master Servicer, the Owner of
     such Mortgage Loan, the Custodian or another entity designated by the
     Master Servicer, and the Servicer shall thereupon immediately deliver such
     records and documents, at the expense of the Servicer.  The Servicer agrees
     to permit the Master Servicer, from time to time to conduct audits or
     inspections of any Servicer Mortgage Loan Files at one or more of the
     Servicer's offices during normal business hours with advance notice.  The
     Servicer must grant the Master Servicer access to all books, records and
     files relating to the Servicer's systems and procedures for servicing
     Mortgage Loans as to all Servicer Mortgage Loan Files or to the Servicer's
     compliance with the terms and conditions of this Agreement.

     9.2.3     ALTERNATE MEDIA.  Subject to any applicable law concerning
     document retention requirements, the Servicer may transfer any Servicer
     Mortgage Loan File, or any portion thereof, to microfilm, microfiche,
     optical storage or magnetic media and may retain the microfilm, microfiche,
     optical storage or magnetic media in lieu of hard copies of the documents
     required to be maintained in such Servicer Mortgage Loan Files.  The
     following requirements must be met:

               (a)  the process must accurately reproduce originals onto a
                    durable medium;

                                      -60-
<PAGE>

               (b)  unless the Master Servicer provides otherwise by notice to
                    the Servicer, the Master Servicer Loan Number must be
                    clearly marked on the copies or optical storage or magnetic
                    media;

               (c)  the copies or optical storage or magnetic media must be
                    easily transferable to legible hard copies of the material
                    relating to the Mortgage Loans; and

               (d)  backup copies of the microfilm, microfiche,  optical storage
                    or magnetic media must be made by the Servicer and retained
                    off-site to protect against fire and other hazard losses.

     If the copies, optical storage or magnetic media become damaged or lost for
     any reason, the Servicer must bear the entire cost of restoring each
     Servicer Mortgage Loan File and any other related documents which had been
     transferred to microfilm, microfiche, optical storage or magnetic media.
     The Servicer also must bear all costs of reproducing legible hard copies
     reasonably requested by the Master Servicer.  The Master Servicer may
     reasonably request copies of any Servicer Mortgage Loan File in optical
     storage or magnetic media which the Servicer has previously transferred to
     magnetic media or optical storage, as the case may be.  The Servicer shall
     furnish to the Master Servicer optical storage or magnetic media copies of
     the requested Servicer Mortgage Loan File in such format as maintained by
     the Servicer at the Servicer's expense.

Section 9.3    REQUISITE FORM

     9.3.1     FORM OF ENDORSEMENTS.  Except where endorsements in blank are
     authorized by the Master Servicer, the Servicer shall require that
     endorsements of any Mortgage Notes comply with the format stated herein.
     If the Owner of the related Mortgage Loan is a trust, then the following
     format shall be employed:

                         WITHOUT RECOURSE
                        PAY TO THE ORDER OF
                       [Name of trustee], AS
         TRUSTEE under the agreement dated as of [Date of
         trust agreement], and its successors and assigns,
                       [Name of prior owner]
                      [Signature of Officer]
                    [Officer's Name and Title]

     Otherwise, except as the Master Servicer shall otherwise require, the
     following format shall be employed:




                                      -61-
<PAGE>

                         WITHOUT RECOURSE
                        PAY TO THE ORDER OF
          [Name of Owner], and its successors and assigns
                       [Name of prior owner]
                 [Signature of Applicable Officer]
               [Applicable Officer's Name and Title]

     9.3.2     FORM OF ASSIGNMENT.  Except where assignments in blank are
     authorized by the Master Servicer, the Servicer shall require that
     assignments of any Security Instrument comply with the format stated
     herein, including, without limitation, as to the name of the assignee.  If
     the Owner of the related Mortgage Loan is a trust then the following format
     shall be employed:

                       [Name of trustee], AS
              TRUSTEE under the agreement dated as of
     [Date of trust agreement], and its successors and assigns

     Otherwise, except as the Master Servicer shall otherwise require, the
     following format shall be employed:

          [Name of Owner], and its successors and assigns


















                                      -62-
<PAGE>

                                   ARTICLE 10

                                    ESCROWS

Section 10.1   ESCROW CRITERIA

     10.1.1      ESCROW REQUIREMENT.  Unless, (a) at the origination of a
     Mortgage Loan the Borrower is not required to make Escrow Item payments
     thereafter, (b) Escrow Funds collection has been waived pursuant to Section
     10.5.1 hereof, or (c) the collection of Escrow Funds is precluded by
     applicable law, the Servicer must continue to collect 1/12th of the annual
     total for all Escrow Items with each Monthly Payment on such Mortgage Loan,
     as determined pursuant to Section 10.3.1 hereof.

     10.1.2      MORTGAGE LOANS WITHOUT ESCROW.  If the Servicer is not required
     to collect Escrow Funds on a Mortgage Loan, the Servicer shall require
     proof of payment of all taxes, ground rents, assessments, insurance or
     other charges, or use other means commonly used in the mortgage industry to
     ascertain that such items are paid on a timely basis.

Section 10.2     PAYMENT OF ESCROW ITEMS

     10.2.1      ESCROW PAYMENT OBLIGATION.  Where the Servicer is responsible
     for the collection of Escrow Funds with respect to a Mortgage Loan, the
     Servicer shall promptly pay all bills for any Escrow Items in such a manner
     as to avoid late charges or penalties and to take advantage of any availabl
     e discount.

     10.2.2      ESCROW ITEM PAYMENTS.  Where (a) the Servicer has been
     collecting Escrow Funds with respect to a Mortgage Loan, or (b) the
     Borrower has not been obliged to make Escrow Funds payments or such
     payments have been waived and such Borrower has failed to timely pay
     obligations which otherwise would be Escrow Items, the Servicer must pay
     any obligation (i) which could become a first lien on the related Mortgaged
     Property, or (ii) to maintain in force the applicable Insurance Policies.
     Where Escrow Funds are maintained by the Servicer, such obligations should
     be paid from the Borrower's Escrow Funds, or in accordance with Section
     10.2.3 hereof.

     10.2.3      ESCROW FUND INSUFFICIENCY.  When a Borrower's Escrow Funds are
     insufficient to pay taxes, assessments and premiums, when due, subject to
     applicable law, the Servicer must attempt to obtain the additional funds
     from such Borrower.  If sufficient additional funds have not been recovered
     by the time the payment is due, the Servicer must advance its own funds to
     ensure prompt payment.  The Servicer may elect to advance funds prior to
     attempting to obtain the additional funds from such Borrower; however, to
     the extent permitted by applicable law, the Servicer shall thereafter
     attempt to obtain the advanced funds from the Borrower.



                                      -63-
<PAGE>

     10.2.4      NONPAYMENT NOTICE.  The Servicer must notify the Master
     Servicer immediately of any Escrow Item that does not conform to either
     FNMA or FHLMC standards.

Section 10.3   ESCROW FUND DETERMINATION

     10.3.1  ESCROW FUNDS ANALYSIS.  Subject to all applicable Federal, State
     and local laws, the Servicer must conduct an analysis of each Borrower's
     Escrow Funds at least annually to determine the monthly deposits which must
     be made by such Borrower.  The analysis will be performed based upon (a)
     reasonable projections of the expenses to be paid from the Escrow Funds and
     (b) that as such expenses come due, the Escrow Funds balance shall at all
     times be sufficient to effect the payment of such expenses, unless a lower
     amount is required by applicable law.  Each Borrower must receive a
     statement of this analysis.  The analysis also must determine whether there
     is a surplus or deficiency in such Borrower's Escrow Funds.

     10.3.2  ESCROW FUND SURPLUS.  As a Borrower may direct, a surplus in such
     Borrower's Escrow Funds shall be (a) used as a Curtailment as to the
     related Mortgage Loan, (b) refunded to such Borrower or (c) taken into
     consideration in determining the amount to be collected for Escrow Funds
     during the next twelve months.

     10.3.3  ESCROW FUND DEFICIENCY.  Where it is determined that a deficiency
     exists in such Borrower's Escrow Funds, such Borrower may be requested to
     pay the shortage in full or the deficiency may be taken into consideration
     in determining the amount to be collected for Escrow Funds during the next
     twelve months.

Section 10.4   RECORDS

     10.4.1  ESCROW FUNDS RECORDS.  The Servicer shall keep records of Escrow
     Funds collected from each Borrower.

     10.4.2      ESCROW OBLIGATIONS RECORDS.  The Servicer must maintain
     accurate records of the imposition of Escrow Item obligations and the
     payment of Escrow Items.

Section 10.5   ESCROW WAIVER

     10.5.1      WAIVER CONDITIONS.  For any Mortgage Loan (other than a GPM or
     GPARM Loan which provides for negative amortization in the future) that has
     amortized down so that its current LTV is 80% or less, the Servicer may
     waive the Borrower's future obligation to make Escrow Funds payments
     provided:

               (a)  the Unpaid Principal Balance of such Mortgage Note divided
                    by the value of the Mortgaged Property based on an appraisal
                    made within 60 days of the date of determination is 80% or
                    less;

               (b)   such Mortgage Loan is at least 12 months old; and

                                      -64-
<PAGE>

               (c)  such Mortgage Loan has not been more than 30 days delinquent
                    during the preceding 12 months.

     10.5.2      WAIVER RESCISSION.  The Servicer shall enforce the Escrow Funds
     requirements with respect to any Mortgage Loan if the related Borrower
     fails to act responsibly in making the required payments.

















                                      -65-
<PAGE>

                                   ARTICLE 11

                       COLLECTION AND SERVICING PRACTICES


Section 11.1   GENERAL SERVICING REQUIREMENTS

     11.1.1      SERVICING PRACTICES.  The Servicer agrees to service Mortgage
     Loans in accordance with the requirements of this Agreement.  In general,
     where not otherwise expressly required by the provisions of this Agreement,
     the Servicer shall service the Mortgage Loans in accordance with Prudent
     Servicing Practices and generally in accordance with FNMA guidelines.  As
     to each Mortgage Loan, the Servicer shall take all such actions as may be
     necessary to preserve the lien of the related Security Instrument upon the
     related Mortgaged Property.

     11.1.2      TAX RETURNS AND OTHER REPORTS.  Unless otherwise instructed by
     notice from the Master Servicer, the Servicer shall forward to each
     Mortgagor such forms and furnish such information within the control of the
     Servicer as are required by the Code to be furnished to them and will
     prepare and file annual reports required by the state authorities.  By way
     of example, the Servicer shall provide the Mortgagors with the reports
     required under Code Sections 6050H (E.G., reporting on Form 1098 any
     mortgage interest, including points, received and any reimbursements of
     qualified mortgage interest) and 6050J (Abandonments and Foreclosure of
     Real Property, Form 1099-A).

     11.1.3      SERVICER INTERNAL CONTROLS.  The Servicer shall maintain at all
     times an adequate system of audit and internal controls in accordance with
     Prudent Servicing Practices.

     11.1.4      POOL INSURANCE COMPLIANCE.  Notwithstanding any other provision
     of this Agreement, the Servicer shall at all times comply with all
     applicable Pool Insurance policy requirements so as to assure the full
     benefit of such Pool Insurance policy to the Owner of the related Mortgage
     Loan.

     11.1.5      PRIMARY MORTGAGE INSURANCE COMPLIANCE.  Notwithstanding any
     other provision of this Agreement, the Servicer shall at all times comply
     with all applicable Primary Mortgage Insurance policy requirements so as to
     assure the full benefit of such Primary Mortgage Insurance policy to the
     Owner of the related Mortgage Loan.






                                      -66-
<PAGE>

Section 11.2   DELEGATION OF DUTIES

     11.2.1    PERMISSIBLE DELEGATIONS.  Without the written consent of the
     Master Servicer authorizing further delegations, the only servicing duties
     which the Servicer may elect to delegate, by agency, subcontract or
     otherwise, and the only categories of such delegees, are as follows:

               (a)  professional collection agencies to perform those duties and
                    functions for the collection of delinquent amounts due on
                    any Mortgage Loan that are customarily performed by such
                    agencies in the locality where the related Mortgaged
                    Property are located;

               (b)  title insurance companies, escrow companies and trust
                    companies to issue or provide reports reflecting the
                    condition of title to any Mortgaged Property and services
                    incidental to the foreclosure or acquisition in lieu of
                    foreclosure of any Mortgaged Property, or the sale or
                    disposition of any Mortgaged Property acquired by the
                    Servicer;

               (c)  attorneys licensed to practice in the state where the
                    related Mortgaged Property is located to perform customary
                    legal services in connection with the foreclosure or
                    acquisition of such Mortgaged Property or the sale or
                    disposition of such Mortgaged Property acquired by the
                    Servicer at or in lieu of foreclosure, or for the collection
                    of delinquent sums owed on any Mortgage Loan;

               (d)  professional property inspection companies and appraisers to
                    conduct routine inspections of, and provide written
                    inspection reports on, any Mortgaged Property as required by
                    this Agreement;

               (e)  title companies, escrow companies and real estate tax
                    service companies to provide periodic reports as to the
                    amount of real estate taxes due on any Mortgaged Property
                    and the due date or dates of each required installment;

               (f)  credit bureaus or credit reporting companies to provide
                    credit reports on Borrowers or persons who have applied to
                    assume any Mortgage Loans;

               (g)  construction companies, contractors and laborers to provide
                    labor, materials and supplies necessary to protect, preserve
                    and repair any Mortgaged Property as required by this
                    Agreement; and

               (h)  lock box providers or payment processing administrators to
                    provide payment processing services.

     11.2.2    DELEGEE'S QUALIFICATIONS.  The Servicer shall assure that each
     Person retained to provide any of the services set forth in Section 11.2.1
     hereof is fully licensed and

                                      -67-
<PAGE>

     holds all required Federal, State or local governmental franchises,
     certificates and permits necessary to conduct the business in which he is
     engaged and that such Person is reputable, knowledgeable, skilled and
     experienced and has the necessary personnel, facilities and equipment
     required to provide the services for which he is retained.

     11.2.3    RESPONSIBILITY FOR COSTS.  Any Person retained in accordance with
     Section 11.2.1 hereof shall be retained solely for the Servicer's account
     and at the Servicer's sole expense and shall not be deemed to be an agent
     or representative of the Owners of the related Mortgage Loans, their
     successors or assigns, or the Master Servicer or its successors or assigns.

     11.2.4    SERVICER'S LIABILITY.  The Servicer shall remain liable to the
     Principal, for the performance of the Servicer's duties and obligations
     under this Agreement, notwithstanding the delegation of any servicing
     function pursuant to this Section 11.2.

Section 11.3   DUE-ON-SALE CLAUSE ENFORCEMENT

     11.3.1    ENFORCEMENT REQUIREMENT.  The Servicer is required to enforce the
     Due-on-Sale Clause on any Mortgage Loan to the extent permitted by
     applicable law upon the transfer of title of the related Mortgaged Property
     unless (a) a Mortgage Loan is assumable pursuant to the terms of the
     related Mortgage Note Assumption Rider, or (b) enforcement of the Due-on-
     Sale Clause will jeopardize the Primary Mortgage Insurance coverage on such
     Mortgage Loan.

     11.3.2    LITIGATION CONSIDERATIONS.  Where, in the Servicer's judgment,
     the issue of enforceability is reasonably expected to be litigated, the
     Servicer will obtain the written consent of the Master Servicer before
     enforcing any Due-on-Sale Clause.

     11.3.3    APPROVAL REQUIREMENT.  In all circumstances of an unapproved
     transfer of a Mortgaged Property initiated by the Borrower, the Servicer is
     required to promptly notify the Master Servicer and, where applicable, the
     respective Primary Mortgage Insurer and/or the respective Pool Insurer, of
     such transfer and obtain written approval before initiating enforcement
     proceedings.

     11.3.4    EXEMPT TRANSACTIONS.  (a) The Servicer will not be required to
     enforce the due-on-sale (or transfer) provision of this Agreement for
     certain types of property transfers or related transactions.  The Servicer
     will process these exempt transactions without the approval or notification
     of the Master Servicer.  In each case, the Mortgaged Property will remain
     subject to the lien of the related Mortgage Loan, and each transferee or
     grantee described below shall take subject to such lien.  The following
     transactions shall be deemed to be exempt transactions and will require the
     review and approval of the Servicer only prior to transfer:

     (i)       a transfer of the Mortgaged Property to the surviving party on
               the death of a joint tenant or a tenant by the entirety;


                                      -68-
<PAGE>

     (ii)      a transfer of the Mortgaged Property to a junior lienholder as
               the result of a foreclosure or the acceptance of a deed in lieu
               of foreclosure for the subordinate mortgage;

     (iii)     a transfer of the Mortgaged Property (or, if the Borrower is an
               INTER VIVOS revocable trust, a transfer of a beneficial interest
               in such trust) to a relative of a deceased Borrower (or, in the
               case of an INTER VIVOS revocable trust Borrower, to a relative of
               the individual who established the trust), provided that the tran
               sferee will occupy the Mortgaged Property;

     (iv)      a transfer of the Mortgaged Property (or, if the Borrower is an
               INTER VIVOS revocable trust, a transfer of a beneficial interest
               in such trust) to the spouse, child(ren), parent(s), brother(s),
               or sister(s), grandparent(s), or grandchild(ren) of the Borrower
               (or, in the case of an INTER VIVOS revocable trust Borrower, of
               the individual who established the trust), provided that the
               transferee will occupy the Mortgaged Property;

     (v)       a transfer of the Mortgaged Property (or, if the Borrower is an
               INTER VIVOS revocable trust, a transfer of a beneficial interest
               in such trust) to a spouse of the Borrower (or, in the case of an
               INTER VIVOS revocable trust Borrower, of the individual who
               established the trust) under a divorce decree or legal separation
               agreement or from an incidental property settlement agreement,
               provided that the transferee will occupy the Mortgaged Property;

     (vi)      a transfer of a Mortgaged Property that is jointly owned by
               unrelated co-borrowers from one of the Borrowers to the other,
               provided that the Borrower who is gaining full ownership of the
               Mortgaged Property will continue to occupy it and the transfer
               occurs after at least 12 months have elapsed since the Mortgage
               Loan was closed;

     (vii)     a transfer of the Mortgaged Property (or, if the Borrower is an
               INTER VIVOS revocable trust, a transfer of a beneficial interest
               in such trust) into an INTER VIVOS revocable trust (or, if the
               Borrower is an INTER VIVOS revocable trust, into a new trust), so
               long as the Borrower (or the individual who established the
               original INTER VIVOS revocable trust) will be the beneficiary of
               the trust and the occupant of the Mortgaged Property;

     (viii)    the granting of a leasehold interest in the Mortgaged Property
               that has a term of three or fewer years and does not provide an
               option to purchase the Mortgaged Property, or a renewal option
               that would allow the term to extend beyond three years;

                                      -69-
<PAGE>

     (ix)      the creation of a subordinate lien upon the Mortgaged Property,
               provided that there is no transfer of occupancy rights therein;
               or

     (x)       the creation of a purchase money security interest for household
               appliances which are situated in or upon the Mortgaged Property.

     (b) If the individual or entity transferring the Mortgaged Property
     requests a release of liability, the Servicer must review the credit and
     financial capacity of the individual or entity receiving the Mortgaged
     Property.  The Servicer may approve the release of liability if it believes
     the recipient is capable of assuming the mortgage obligations and, where
     applicable, with the consent of the respective Primary Mortgage Insurer
     and/or the respective Pool Insurer.  If the Servicer does not believe that
     the recipient is credit worthy or if the consent of the respective Primary
     Mortgage Insurer and/or the respective Pool Insurer is required but not
     obtained, the Servicer shall deny the request for the release of liability,
     although the transfer may still be processed without the release.  If the
     request is denied based solely on the Primary Mortgage Insurer's or the
     respective Pool Insurer's decision, the denial letter should state that
     fact.

     (c) The Servicer shall advise (i) each insurance company providing Hazard
     Insurance and Flood Insurance, where applicable, (ii) the relevant tax
     authorities, where applicable, (iii) the respective Primary Mortgage
     Insurer and/or the respective Pool Insurer and (iv) other interested
     parties when it processes transactions under this Section 11.3.4.  The
     Master Servicer does not need to be notified about such a transaction
     unless the Servicer agrees to a release of liability under Section
     11.3.4(b).

Section 11.4   ASSUMPTIONS

     11.4.1      ASSUMPTION REQUIREMENTS.  Any Assumption permitted under this
     Agreement shall be performed in accordance with Prudent Servicing
     Practices.  In connection with an Assumption of an assumable Mortgage Loan,
     the Servicer shall process such Assumption as provided for in the Mortgage
     Note or the Mortgage Note Assumption Rider and shall verify that:

               (a)  no material term of the Mortgage Note (including, but not
                    limited to, the Mortgage Interest Rate, the remaining term
                    to maturity, the Gross Margin, the Index, the Maximum
                    Lifetime Mortgage Interest Rate, the Minimum Lifetime
                    Mortgage Interest Rate, and any Periodic Rate Cap or any
                    Periodic Payment Cap) may be changed in connection with such
                    Assumption;

               (b)  that the new Borrower qualifies for credit under the Master
                    Servicer's criteria and standards for similar loans;

               (c)  where applicable, the respective Primary Mortgage Insurer,
                    and/or the respective Pool Insurer has in advance approved
                    in writing such Assumption of such Mortgage Loan by the new
                    Borrower and such

                                      -70-
<PAGE>

                    Mortgage Loan will continue to be insured by such Primary
                    Mortgage Insurer and/or such Pool Insurer;

               (d)  the documents relating to such Assumption (i) create a valid
                    and enforceable promise to pay the Unpaid Principal Balance
                    of the related Mortgage Loan, together with interest thereon
                    in accordance with the related Mortgage Note by the new
                    Borrower and (ii) the related Security Instrument continues
                    to evidence a valid and perfected first lien on the related
                    Mortgaged Property; and

               (e)  such Mortgage Loan will continue to be a valid first
                    priority security interest upon the related Mortgaged
                    Property.

     11.4.2      APPROVAL AND RELEASE.  In connection with an Assumption of an
     assumable Mortgage Loan and in accordance with the provisions of the
     related Mortgage Loan Documents, upon such verification, (a) the Servicer
     may approve such Assumption and (b) only with the prior written approval
     of, where applicable, the Primary Mortgage Insurer and/or the Pool Insurer,
     unless such approval is precluded by the terms of the Mortgage Loan
     Documents, release the previous Borrower from liability.

     11.4.3      NOTIFICATION OF ASSUMPTION.  The Servicer shall notify the
     Master Servicer of any Assumption by the eighteenth calendar day of the
     month following the month in which the Assumption took place using the
     Assumption Report and shall provide to the Custodian the original
     assumption agreement.

     11.4.4      ASSUMPTION FEES.  Subject to applicable law or regulation and
     the provisions of the related Mortgage Note, the Servicer may charge the
     Borrower and retain a reasonable and customary assumption fee.  Such fee is
     receivable only from the Borrower directly and may not be withdrawn from
     any of the custodial accounts maintained hereunder.

     11.4.5      DISCLOSURE REQUIREMENT.  In connection with an Assumption of an
     assumable Mortgage Loan, the Servicer shall make all disclosures required
     by applicable law.

Section 11.5   PARTIAL RELEASES AND EASEMENTS

     11.5.1      PREREQUISITES.  The Servicer must take the following actions
     prior to permitting the grant of a partial release of a Mortgaged Property
     from the lien of the related Security Instrument, easement, consent to
     substantial alterations and any other changes affecting the related
     Mortgage Loan or such Mortgaged Property:

               (a)  where applicable, obtain the respective Primary Mortgage
                    Insurer's and/or the respective Pool Insurer's prior written
                    approval;

               (b)  if the value of the released property is more than five
                    thousand ($5,000) dollars, obtain an acceptable Appraisal
                    Report showing the current

                                      -71-
<PAGE>

                    market value of such Mortgaged Property before and after the
                    release and showing individually both the value of the land
                    and of the improvements thereon;

               (c)  ensure that any and all cash consideration received at least
                    equals the current market value of property or rights to be
                    released regarding such Mortgaged Property;

               (d)  ensure that any and all cash consideration received is
                    applied to the Unpaid Principal Balance of such Mortgage
                    Loan to the extent of the diminution of the value of such
                    Mortgaged Property;

               (e)  cause all legal documents for the transaction to be
                    reviewed;

               (f)  ensure that such Mortgaged Property, following such release
                    or change, adequately secures the Unpaid Principal Balance
                    of the Mortgage Loan and accrued interest thereon and that
                    the related Loan-to-Value ratio will not be greater than
                    80%, after giving effect to clause (d) hereof; and

               (g)  obtain written notification from the respective Title
                    Insurer that the related Title Insurance policy remains
                    fully in effect with respect to such Mortgaged Property, as
                    modified, following such release or change.

     11.5.2      RELEASE OR MODIFICATION OF LIEN.  With the consent, where
     applicable, of the respective Primary Mortgage Insurer, and/or the
     respective Pool Insurer, the Servicer may approve applications for partial
     release of a Mortgaged Property from the lien of the related Security
     Instrument, easements, consent to substantial alterations and any other
     changes affecting the related Mortgage Loan or such Mortgaged Property if
     the perquisites in Section 11.5.1 have been satisfied.  The Servicer shall
     promptly notify the Master Servicer of any approval under Section 11.5.1.
     and this Section 11.5.2 affecting the lien upon a Mortgaged Property.

     11.5.3      MASTER SERVICER'S APPROVAL.  If the Servicer is not able to
     meet the prerequisites specified in Section 11.5.1   or if the amount of
     consideration received is less than the reduction in the value of the
     Mortgaged Property due to the partial release or other changes, the
     Servicer must obtain the approval of the Master Servicer prior to
     permitting an application described in Section 11.5.2.  The Servicer shall
     furnish such information as the Master Servicer shall request in connection
     with an application under this Section 11.5.3.

Section 11.6   RECORDATION OF ASSIGNMENTS

     11.6.1      RECORDATION REQUIREMENT.  Regarding the initial acquisition of
     the Mortgage Loans pursuant to the Sales Agreement, the Servicer must, at
     its own expense, record the Assignment of each Security Instrument to the
     Owner of the related Mortgage Loan, as well as any previously unrecorded
     intervening Assignments.  If any such

                                      -72-
<PAGE>

     Security Instrument or Assignment is not recorded within the later to occur
     of (i) the date 120 days after the acquisition of the related Mortgage Loan
     by its Owner, if the Servicer has been servicing such Mortgage Loan from
     such Owner's date of acquisition or (ii) the date 120 days after the date
     the Servicer began servicing such Mortgage Loan, the Master Servicer will
     have the right to so effect such recordation at the Servicer's expense.

     11.6.2      EXTENSION OF RECORDING PERIOD.  The time to record an
     Assignment of a Security Instrument may be extended from the end of
     permissible recordation period set forth in Section 11.6.1 if the Servicer
     provides an Officer's certificate acceptable to the Master Servicer
     certifying that the Servicer has used its best efforts to complete the
     recordation process for the Security Instrument and/or Assignment, as
     applicable, and that the factors preventing completion of the recordation
     process are beyond the Servicer's control.

     11.6.3      DELIVERY REQUIREMENT.  Promptly following the recordation of
     any Security Instrument or an Assignment, the Servicer will deliver to the
     Custodian, unless otherwise directed in writing by the Master Servicer,
     such Security Instrument or Assignment bearing evidence of recordation or,
     if the original Security Instrument or Assignment is retained by the
     recording office, a certified copy of the original recorded Security
     Instrument or Assignment.

     11.6.4      WAIVER OF RECORDATION.  The Master Servicer will generally
     require the Servicer to record an Assignment of the Security Instrument for
     each Mortgage Loan to the Owner of related Mortgage Loan.  However, the
     recordation requirement with respect to an Assignment may be waived for a
     Mortgage Loan if (a) the related Mortgaged Property is in a state in which
     recordation of such an Assignment is not required to protect the Owner of
     the related Mortgage Loan's right, title and interest in and to the related
     Mortgage Loan and (b) the Seller or the Servicer has delivered to the
     Master Servicer an opinion of counsel, acceptable to the Master Servicer,
     to that effect.

Section 11.7   GENERAL SERVICING CONSIDERATIONS

     11.7.1      ABANDONMENT.  If the Servicer discovers that any Mortgaged
     Property is not occupied, the Servicer must immediately attempt to contact
     the Borrower in order to determine the reason for the vacancy.  If the
     Servicer determines that such Mortgaged Property has been abandoned, the
     Servicer, at its own expense, must take all necessary actions to protect
     such Mortgaged Property from waste, damage and vandalism.  Such expenses
     shall be recoverable by the Servicer solely from the Liquidation Proceeds
     of the related Mortgage Loan, if any, or directly from the Borrower.

     11.7.2      BUYDOWN FUNDS.  The Servicer must distribute any Buydown Funds
     in each Custodial Buydown Account in accordance with the terms of the
     applicable Buydown Agreement.



                                      -73-
<PAGE>

     11.7.3      NOTIFICATION MATTERS.  Based upon information obtained pursuant
     to its obligations under Section 12.2.6, the Servicer shall (i) maintain
     accurate records of and (ii) except in the case of paragraph (f) hereof
     involving a monetary default of the Borrower addressed by Article 12
     hereof, immediately notify the Master Servicer upon discovering any of the
     following:

               (a)  deterioration of, waste of, or lack of repair to, any
                    Mortgaged Property, which materially and adversely affects
                    the Value of such Mortgaged Property and the Borrower
                    refuses or is not financially able to make the necessary
                    repairs;

               (b)  sale or transfer of any Mortgaged Property in a manner not
                    approved by the Servicer pursuant to the provisions of this
                    Agreement;

               (c)  material litigation involving any Mortgaged Property;

               (d)  abandonment of any Mortgaged Property;

               (e)  a material default, determined in accordance with Prudent
                    Servicing Practices, under the terms of any Security
                    Instrument, Mortgage Note, Condominium Project or PUD
                    constituent document or similar obligations of a Borrower;
                    or

               (f)  any other situation that may materially and adversely affect
                    the value of any Mortgage Loan.

     11.7.4      EMINENT DOMAIN.   The Servicer must submit appropriate
     recommendations and documentation to the Master Servicer and, where
     applicable the respective Primary Mortgage Insurer and/or the respective
     Pool Insurer, of any taking by eminent domain if:

     (a)  the Mortgaged Property will be taken in whole and the consideration to
          be paid to the Borrower will be insufficient to satisfy the Unpaid
          Principal Balance (plus any unreimbursed Advances of the related
          Mortgage Loan, or

     (b)  the Mortgaged Property will be taken in part and (i) the ratio of the
          (A) Unpaid Principal Balance (plus any unreimbursed Advances) of the
          Mortgage Loan to (B) the Current Value of the remaining Mortgaged
          Property is higher than (ii) the LTV ratio of the Mortgage Loan
          immediately before the taking, even after applying any consideration
          to the Unpaid Principal Balance of the Mortgage Loan.

     The Servicer must take all steps necessary to prevent loss of any Primary
     Mortgage Insurance or Pool Insurance benefits due to any taking by eminent
     domain.


                                      -74-
<PAGE>

     11.7.5      LATE CHARGES.  Late charges may not be assessed unless a
     Borrower failed to make payments in accordance with the Mortgage Note.

Section 11.8   BORROWER BANKRUPTCY

     11.8.1      SERVICER'S DUTY.  The Servicer will be responsible for
     representing the interests of the Owner of the related Mortgage Loan in any
     bankruptcy proceedings involving a Borrower.

     11.8.2      RESPONSIBILITY FOR COSTS.  The costs of protecting the
     interests of the Owner of a Mortgage Loan shall be advanced by the Servicer
     and are not (a) chargeable to the related Borrower's Escrow Funds or (b)
     reimbursable from the Master Servicer.

     11.8.3      CHALLENGE BANKRUPTCY REDUCTIONS.  If the bankruptcy judge or
     trustee should propose to (a) reduce the Unpaid Principal Balance of a
     Mortgage Note, (b) reduce the related Mortgage Interest Rate, (c) extend
     the final maturity of such Mortgage Note, or (d) reduce the level of any
     monthly payment on such Mortgage Note, the Servicer shall (i) challenge any
     such modification on a timely basis, (ii) notify the Master Servicer
     immediately and (iii) follow the Master Servicer's instructions regarding
     the bankruptcy proceedings, and in the absence of explicit instructions,
     exercise reasonable judgment to protect the interests of the Owner of such
     Mortgage Loan.

     11.8.4      BANKRUPTCY ADJUSTMENTS.  If the action of any court results in
     a Deficient Valuation or Debt Service Reduction, the Servicer will provide
     a calculation of the effects of such modification notifying the Master
     Servicer of the new principal balance, Mortgage Interest Rate, new final
     maturity, or monthly payment level, as the case may be, of such Mortgage
     Loan.

     11.8.5      BANKRUPTCY PLAN SURVEILLANCE.  With respect to each Mortgage
     Loan which is the subject of a Deficient Valuation or a Debt Service
     Reduction, the Servicer shall verify that payments are being made in
     accordance with the plan approved in the related bankruptcy proceedings.









                                      -75-
<PAGE>

                                   ARTICLE 12

                             DELINQUENCY MANAGEMENT


Section 12.1   IN GENERAL

     12.1.1      SERVICING PRACTICES.  The provisions set forth in this Article
     constitute the minimum guidelines and procedures for servicing Delinquent
     Mortgage Loans.  The Servicer must use collection procedures which meet or
     exceed these guidelines.  The Servicer's procedures must be sufficient for
     promptly dealing with delinquencies.  The Master Servicer retains the right
     to require the Servicer to perform additional collection procedures which
     the Master Servicer deems, in its reasonable discretion, necessary to
     realize the objectives set forth herein or otherwise to protect the
     interests of the Owner of the related Mortgage Loan.

     12.1.2      SERVICER'S CAPABILITIES.  The Servicer's collection staff must
     be sufficiently skilled in financial counseling and mortgage servicing
     techniques to assist a Borrower to bring his Mortgage Loan current and to
     protect his equity and credit rating, while at the same time protecting the
     interests of the Owner of the related Mortgage Loan and of the Master
     Servicer.

     12.1.3      SERVICING OBJECTIVES.  The purpose of any collection effort is
     to cure a Delinquency in the shortest possible time.  The Servicer should
     treat each Delinquency individually.  Discussions with the Borrower must
     cover the cause of such Delinquency and the time frame in which such
     Delinquency will be cured.  The Servicer should use notices, letters,
     telegrams, telephone calls, face-to-face contact and other responsible
     collection techniques consistent with Prudent Servicing Practices.  The
     Servicer is required to maintain all collection records.  The Servicer must
     vary its collection techniques to fit individual circumstances, avoiding a
     fixed collection pattern which may be ineffective in dealing with
     particular Borrowers.  The Servicer should recognize the importance of
     telephone and face-to-face contact in any collection program.  As part of
     its collection procedures, the Servicer shall closely monitor all newly
     originated Mortgage Loans.

     12.1.4.  SERVICER'S EXPENSES.  Unless otherwise specified, the cost of any
     of the servicing procedures detailed in this Agreement shall be borne
     solely by the Servicer.  The Servicer may not charge such expenses against
     the Borrower's Escrow Funds.  The foregoing shall not preclude the Servicer
     from recovering such expenses from the Borrower to the extent permitted by
     applicable law and the related Mortgage Loan Documents.

Section 12.2   DELINQUENCY SERVICING PROCEDURES

     12.2.1      LATE NOTICE.  A late notice shall be mailed by the Servicer to
     the Borrower by the 18th day of such Delinquency.

                                      -76-
<PAGE>

     12.2.2      TELEPHONIC INQUIRY.  The Servicer shall use best efforts to
     make telephone contact with the Borrower by the 20th day of such
     Delinquency.

     12.2.3      NOTICE OF DEFAULT.  Notification of default of such Mortgage
     Loan shall be mailed by the Servicer to the Borrower by the 35th day of
     such Delinquency.

     12.2.4      BORROWER INTERVIEW.  The Servicer shall use best efforts to
     conduct a face-to-face interview between the 45th day and the 60th day of
     such Delinquency if satisfactory arrangements to cure the Delinquency have
     not been made.  If, for geographic reasons, a face-to-face meeting is not
     feasible, an in-depth telephone interview may be conducted instead.

     12.2.5      CONTINUING CONTACTS.  If satisfactory arrangements have not
     been made to cure such Delinquency by the 90th day, the Servicer must
     continue to contact the Borrower until either the related Mortgage Loan has
     been brought current or the Servicer has made a recommendation in writing
     to the Master Servicer for foreclosure of such Mortgaged Property or other
     action.

     12.2.6      PROPERTY INSPECTION.  The Servicer is required to inspect each
     Mortgaged Property no later than the 60th day of the Delinquency if no
     satisfactory arrangements have been made to cure such Delinquency of the
     related Mortgage Loan.  The inspecti"on should determine the physical
     condition and the occupancy status of such Mortgaged Property.  The
     Servicer is required to inspect such Mortgaged Property monthly after the
     60th day of such Delinquency until such Delinquency is cured or the related
     Mortgage Loan is Liquidated.  The results of any inspection should be used
     in determining whether a recommendation for foreclosure or for the transfer
     of deed-in-lieu of foreclosure is necessary.  The Servicer must prepare a
     Property Inspection Report following each inspection.  All Property
     Inspection Reports must be retained by the Servicer and copies thereof must
     be forwarded to the Master Servicer promptly upon request.  All expenses
     related to the foregoing shall be borne by the Servicer and such expenses
     shall not be recoverable by the Servicer from the Master Servicer or the
     Principal or from Liquidation Proceeds, Insurance Proceeds, payments on the
     related Mortgage Loan or any other source relating to the related Mortgage
     Loan or the related Mortgaged Property.  The foregoing shall not preclude
     the Servicer from recovering such expenses from the Borrower to the extent
     permitted by applicable law and the related Mortgage Loan Documents.

Section 12.3   RELIEF OF BORROWERS

     12.3.1      SERVICER'S ROLE.  The Servicer shall be readily available to
     Borrowers to offer skilled financial counsel and advice and shall make
     personal contact with delinquent Borrowers as often as possible to achieve
     a solution that will bring the Mortgage Loan current as soon as possible.
     The Servicer shall be fully familiar with the form of relief to Borrowers
     provided for herein and will employ such relief.

                                      -77-
<PAGE>

     12.3.2      SERVICER'S DISCRETION.  The Servicer shall have reasonable
     discretion to extend appropriate relief to Borrowers who encounter hardship
     and who are cooperative and demonstrate proper regard for their
     obligations.  However, no such relief shall be granted to any Borrower
     under a Mortgage Loan unless the Servicer reasonably believes that there is
     a reasonable expectation that such Borrower will bring his Mortgage Loan
     current within 180 days following the onset of Delinquency.  Further,
     without the consent of the Master Servicer, no such relief shall be granted
     other than with respect to a Mortgage Loan that has at least a 31-day
     Delinquency.

     12.3.3      RELIEF REQUIREMENT.  Prior to granting relief with respect to a
     delinquent Mortgage Loan as herein provided, the Servicer shall ascertain
     that (i) the reasons for the default and (ii) the attitude and
     circumstances of such Borrower justify the relief to be granted.

     12.3.4      PRIMARY MORTGAGE INSURANCE CONSIDERATIONS.  Where applicable,
     the Servicer shall satisfy all requirements under the applicable Primary
     Mortgage Insurance policy regarding the relief granted with respect to a
     delinquent Mortgage Loan.

     12.3.5      RESPONSIBILITY FOR COSTS.  The Servicer is responsible for
     collection from such Borrower of any recording or similar costs or expenses
     incidental to the granting of relief with respect to a delinquent Mortgage
     Loan.

     12.3.6      FORBEARANCE PLAN.  Where relief is appropriate, the Servicer
     shall arrange with a Borrower a "Forbearance Plan" giving such Borrower a
     definite period in which to reinstate his Mortgage Loan by immediately
     commencing payments in excess of the regular Monthly Payments.  Without the
     prior written consent of the Master Servicer, special forbearance relief
     agreements reducing or suspending the regular Monthly Payment of the
     related Mortgage Loan for a specified period of time are not permitted.  To
     the extent that (i) the priority of the lien represented by such Mortgage
     Loan remains in effect and is not adversely affected, (ii) where
     applicable, the related Primary Mortgage Insurance policy remains in full
     force and effect and (iii) where applicable, the related Pool Insurance
     policy remains in full force and effect, the Servicer, in its discretion,
     may enter into a Forbearance Plan that provides that the total amount owed
     during such Delinquency, including costs and expenses, will be repaid
     within the shortest period practicable, commencing immediately.  With
     respect to such Mortgage Loan, the Forbearance Plan shall provide that such
     Delinquency will be cured within 180 days after the Due Date of the
     earliest unpaid installment, unless the Master Servicer and, where
     applicable, the respective Pool Insurer and/or the respective Primary
     Mortgage Insurer, consent to a longer period of time.  The Forbearance Plan
     for such Mortgage Loan shall be set forth in writing and executed by the
     Borrower and by the Servicer in the form of a letter agreement if the
     earliest unpaid installment is more than 60 days past due.

     12.3.7      ACCOMMODATION LIMITATIONS.  No modification, recast, extension,
     or capitalization of delinquent payments of a Mortgage Loan other than as
     provided in Section 12.3.6 hereof shall be permitted with respect to a
     Mortgage Loan unless there

                                      -78-
<PAGE>

     is at least a 90-day Delinquency with respect to such Mortgage Loan unless
     permitted by the Master Servicer.

     12.3.8      POOL INSURANCE CONSIDERATIONS.  Where applicable, the Servicer
     shall satisfy all requirements under the applicable Pool Insurance policy
     regarding the relief granted with respect to a delinquent Mortgage Loan,
     including, without limitation, securing the prior written consent of the
     respective Pool Insurer regarding (a) any change in any term of such
     Mortgage Loan, (b) the release of the related Borrower from any liability
     related to such Mortgage Loan, or (c) the release of any portion of, or
     interest in, the Mortgaged Property from the lien of the related Security
     Instrument.

Section 12.4   SPECIAL DELINQUENCY SERVICING CONSIDERATIONS

     12.4.1      ADVANCE RESPONSIBILITY DURING DELINQUENCY.  In the event of a
     Delinquency with respect to a Mortgage Loan, the Servicer agrees to advance
     from its own funds the full amount of Monthly Payments (which may be net of
     the related Servicing Fee) for such Mortgage Loan.  These advances shall
     provide the Owner of such Mortgage Loan with a regular flow of funds on
     such delinquent Mortgage Loan.  The advance obligation stated above is in
     addition to any other advance obligations which the Servicer has pursuant
     to the provisions of this Agreement.  The Servicer must still advance funds
     in accordance with the provisions of this Agreement even if a forbearance
     has been granted.

     12.4.2      PRIMARY MORTGAGE INSURANCE COMPLIANCE.  Where applicable, the
     Servicer shall be familiar with and shall satisfy all requirements of the
     applicable Primary Mortgage Insurance policy with respect to a delinquent
     Borrower.  The Servicer shall have adequate controls to assure timely
     filing of all notices to the appropriate Primary Mortgage Insurer.  The
     Servicer shall prepare and file all appropriate claims with respect to the
     applicable Primary Mortgage Insurance policy, and the Servicer shall
     prepare and deliver to the Master Servicer copies of all claims forms and
     other papers received from or presented to any Primary Mortgage Insurer in
     connection with any claims presented under any such policy, unless the
     Servicer is otherwise instructed by the Master Servicer.

     12.4.3      POOL INSURANCE COMPLIANCE.  Where applicable, the Servicer
     shall be familiar with and shall satisfy all requirements of the applicable
     Pool Insurance policy with respect to a delinquent Borrower.  The Servicer
     shall have adequate controls to assure timely filing of all notices to the
     appropriate Pool Insurer.  Copies of all such notices shall be sent to the
     Master Servicer, unless otherwise instructed.  The Servicer shall prepare
     and file all appropriate claims with respect to the applicable Pool
     Insurance policy, and the Servicer shall prepare and deliver to the Master
     Servicer copies of all claims forms and other papers received from or
     presented to any Pool Insurer in connection with any claims presented under
     any such policy, unless the Servicer is otherwise instructed by the Master
     Servicer.



                                      -79-
<PAGE>


                                   ARTICLE 13

                            FORECLOSURE ADMINISTRATION


Section 13.1   FORECLOSURE PREREQUISITES

     13.1.1      CHRONIC DELINQUENCY.  If a Borrower is chronically delinquent
     and the Servicer, based upon Prudent Servicing Practices, has exhausted all
     reasonable means of curing the Delinquency, the Servicer must realize upon
     the related defaulted Mortgage Loan in accordance with Prudent Servicing
     Practices and recommend either (i) the commencement of foreclosure
     procedures or (ii) an alternate to foreclosure, each in accordance with the
     terms of the related Security Instrument and applicable law.

     13.1.2      LIQUIDATION RECOMMENDATION.  Prior to the commencement of any
     action to foreclose on a Mortgaged Property, or prior to the acceptance of
     a deed-in-lieu of foreclosure, the Servicer shall notify the Master
     Servicer and, where applicable, the respective Primary Mortgage Insurer
     and/or the respective Pool Insurer, of the Servicer's recommendation as to
     whether foreclosure should be commenced, or a deed-in-lieu of foreclosure
     accepted, and, where applicable, shall provide all other notices, reports
     or information required by the Master Servicer or the applicable Primary
     Mortgage Insurance policy and/or Pool Insurance policy.  If the respective
     prior approval of the Master Servicer and, where applicable, the respective
     Primary Mortgage Insurer and/or the respective Pool Insurer, is not
     withheld, the Servicer shall initiate foreclosure or accept a deed-in-lieu
     of foreclosure, as the case may be.  Where such Mortgaged Property is
     covered by a Primary Mortgage Insurance policy and/or Pool Insurance
     policy, if the respective Primary Mortgage Insurer or the respective Pool
     Insurer, as the case may be, withhold its approval, the Servicer shall act
     according to the respective Primary Mortgage Insurer's instructions or the
     respective Pool Insurer's instructions provided such actions are consistent
     with, and contemplated by, the applicable Primary Mortgage Insurance policy
     or the applicable Pool Insurance policy, as the case may be.
     Notwithstanding any of the foregoing, if the Master Servicer directs the
     Servicer to follow a course of action regarding the liquidation of a
     Mortgaged Property, the Servicer shall follow the Master Servicer's
     instructions.

     13.1.3      FORECLOSURE EXPENSES.  All fees and expenses shall be
     consistent with FNMA standards and, where applicable, shall not exceed
     those permitted under the respective Pool Insurance policy and/or the
     respective Primary Mortgage Insurance policy.  Fees in excess of the amount
     permitted by FNMA guidelines or extraordinary legal services must be
     approved in writing in advance by the Master Servicer, and, where
     applicable, by the respective Primary Mortgage Insurer or the respective
     Pool Insurer, as the case may be, if required by the applicable policy.
     All attorneys' fees, and other costs in excess of FNMA's standards in
     respect of any foreclosure or acquisition in lieu of foreclosure shall be
     identified in advance and a detailed estimate of the amounts thereof shall
     be set forth in the Servicer's written recommendation.  The billing by a
     foreclosure attorney must demonstrate the appropriateness of any
     extraordinary fees by

                                      -80-
<PAGE>

     the services required.  In cases of full or partial reinstatement of the
     related Mortgage Loan, the fees shall be reasonable and in proportion to
     the authorized fee for services rendered for a completed foreclosure.
     Unless otherwise expressly agreed in writing, neither the Master Servicer,
     any of its Affiliates, their respective officers, directors, employees,
     agents, successors or assigns, the Owner of the related Mortgage Loan, nor
     any beneficial owners thereof shall be liable for any attorneys' fees,
     trustees' fees, witness fees, title search fees, court costs or other
     expenses incurred by the Servicer in respect of any foreclosure or
     acquisition in lieu of foreclosure, except to the extent that such fees,
     costs and expenses are fully reimbursable under a Primary Mortgage
     Insurance policy and in fact are reimbursed.

     13.1.4      HAZARDOUS WASTES.  In the event that the Mortgaged Property,
     related to a Mortgage Loan which is being considered for liquidation by
     foreclosure or the transfer of a deed-in-lieu of foreclosure, contains, and
     the Servicer has reason to believe that it contains, hazardous or regulated
     substances which may impose liability, for damages, remediation or
     otherwise, upon the owner of such Mortgaged Property pursuant to Federal,
     State or local law, the Servicer shall not, except with the express prior
     written approval of the Master Servicer, which approval makes specific
     reference to the presence of such hazardous or regulated substances,
     undertake or continue the process of foreclosure with respect to such
     Mortgaged Property.

Section 13.2   DEED-IN-LIEU OF FORECLOSURE

     13.2.1      CONDITIONS.  If the Master Servicer and the respective Primary
     Mortgage Insurer and/or the respective Pool Insurer, if applicable, have
     approved the liquidation of a Mortgage Loan by accepting a deed-in-lieu of
     foreclosure of the related Mortgaged Property, the Servicer may accept such
     deed without any further action or approval by the Master Servicer or,
     where applicable, the respective Primary Mortgage Insurer and/or the
     respective Pool Insurer, provided that:

               (a)  the Servicer determines that the pursuit of a deficiency
                    judgment is not practical or warranted;

               (b)  the Mortgaged Property has been listed for sale at a market
                    value for three months or more without a reasonable sales
                    offer;

               (c)  there reasonably appear to be legal impediments to pursuing
                    foreclosure;

               (d)  the acceptance of the deed-in-lieu of foreclosure will
                    enable the Owner of the related Mortgage Loan to acquire the
                    Mortgaged Property earlier than under a foreclosure action;

               (e)  the Borrower acknowledges in writing that the deed is being
                    accepted as an accommodation to him or her;


                                      -81-
<PAGE>

               (f)  where applicable, the respective Primary Mortgage Insurer
                    and/or the respective Pool Insurer has agreed to the
                    acceptance of a deed-in-lieu;

               (g)  the Borrower has not received cash consideration to deed the
                    Mortgaged Property over to the Owner of the related Mortgage
                    Loan, unless the Master Servicer otherwise approves;

               (h)  the Borrower can convey acceptable marketable title,
                    evidenced by a Title Insurance policy;

               (i)  the Mortgaged Property is vacant (unless, where applicable,
                    the respective Primary Mortgage Insurer and/or the
                    respective Pool Insurer has agreed to accept an occupied
                    property);

               (j)  the Mortgaged Property is not subject to liens (held by
                    others), judgments, or attachments; and

               (k)  the Borrower agrees to assign and transfer to the benefit of
                    the Owner of the related Mortgage Loan, where applicable,
                    any rents if the Mortgaged Property is rented, and the
                    Servicer agrees to collect any rental income.

     13.2.2      SUBSEQUENT ACTIONS.  Upon acquisition by the Owner of the
     related Mortgage Loan of such Mortgaged Property, the Servicer shall
     promptly notify the Master Servicer and, if applicable, the respective
     Primary Mortgage Insurer and/or the respective Pool Insurer, indicating the
     details of the transaction and reasons for the conveyance and providing
     such other information as is required under a Primary Inspection Report to
     the Master Servicer and, if applicable, to the Primary Mortgage Insurer
     and/or the Pool Insurer.  Title shall be conveyed directly from the
     Borrower to the Owner of the related Mortgage Loan or to such other Person
     designated by the Master Servicer.

Section 13.3   ACTIONS PRIOR TO FORECLOSURE

     13.3.1      NOTICE REQUIREMENTS.  The Servicer shall send the Borrower a
     letter, not less than 30 days before the commencement of foreclosure
     proceedings, setting out (i) the nature of the default, (ii) the steps that
     must be taken by the Borrower to cure the default and (iii) the date when
     foreclosure proceedings will begin.  If the Servicer has reason to believe
     that the related Mortgaged Property has been abandoned or if the Borrower
     has displayed an obvious disregard for his obligations under such Mortgage
     Loan, the foregoing notice shall be forwarded at the earliest possible date
     following the Borrower's default.

     13.3.2      INITIATION OF PROCEEDINGS.  If foreclosure approval has not
     been withheld by the Master Servicer and, where applicable, by the
     respective Primary Mortgage Insurer and/or the respective Pool Insurer,
     with respect to a Mortgaged Property, including Co-op Shares, the Servicer
     shall, unless it arranges for the sale by the Borrower of the

                                      -82-
<PAGE>

     Mortgaged Property to a third party pursuant to Section 13.3.3,  initiate
     or cause to be initiated such foreclosure actions as are authorized by law
     and consistent with practices in the locality where the Mortgaged Property
     is located, including, in the case where such Mortgaged Property includes a
     residential long-term lease, the succession by the Servicer to the rights
     of the Borrower under the lease by foreclosure, assignment in lieu of
     foreclosure or other comparable means.  If such Mortgaged Property has been
     abandoned or vacated by the Borrower and the Borrower has evidenced no
     intention of honoring his obligations under the related Mortgage Loan, the
     foreclosure process shall be expedited to the fullest extent permitted by
     law.

     13.3.3     SHORT SALE OF DEFAULTED MORTGAGE LOANS IN LIEU OF FORECLOSURE.
     With respect to any defaulted Mortgage Loan for which the Servicer would
     otherwise be required to initiate foreclosure proceedings, the Servicer may
     arrange for the sale of the Mortgaged Property by the Borrower to a third
     party if, in the good faith judgment of the Servicer, the net proceeds from
     such sale would be equal to or greater than the net proceeds of a bid
     conducted in accordance with Section 13.4.2(b).

Section 13.4   FORECLOSURE PROCEDURES

     13.4.1      FORECLOSURE EXPENSES.  During the period in which the Mortgaged
     Property related to a Mortgage Loan is being foreclosed, remaining Escrow
     Funds, if any, as well as any rent receipts, shall be used to pay all taxes
     and insurance premiums that become due with respect to such Mortgaged
     Property to the extent permitted by law.  Except where other arrangements
     have been made with the applicable Primary Mortgage Insurer, the Servicer
     shall, with respect to each Mortgaged Property undergoing foreclosure,
     advance payment of attorneys' fees, trustees' fees and other foreclosure
     costs from the commencement of foreclosure proceedings pertaining to such
     Mortgaged Property.

     13.4.2      BIDDING INSTRUCTIONS.  (a) The Servicer shall issue bidding
     instructions to the attorney or trustee in a foreclosure proceeding.  Where
     applicable, the Servicer shall incorporate any bidding requirements issued
     by the respective Primary Mortgage Insurer and/or the respective Pool
     Insurer.  Any proceeds received from an insurance loss settlement shall be
     included as part of the bid amount.  Where a claim or claim settlement
     under a Hazard Insurance or Flood Insurance policy is pending, the Servicer
     shall contact the Hazard Insurance or Flood Insurance carrier to verify
     that the proposed bid will not invalidate the claim, in that, in certain
     jurisdictions, a bid for the total indebtedness will be considered as
     satisfaction of the debt and would thus bar the Hazard Insurance or Flood
     Insurance claim.

     (b) The Servicer's bidding instructions to the attorney or trustee in a
     foreclosure proceeding shall be to enter a bid amount which is the lesser
     of (i) the total amount of indebtedness, which shall include the Unpaid
     Principal Balance, unpaid accrued interest up to, and including, the date
     of the sale (calculated using the interest rate in effect for each payment
     on the date it became due), any T&I Advances and other servicing Advances
     including, without limitation, foreclosure costs and any reimbursable

                                      -83-
<PAGE>

     property inspection fees or (ii) the fair market value of the related
     Mortgaged Property established by a current broker's price opinion.

     (c) If the Servicer is not able to comply with the bidding instructions
     outlined in subsection (b) hereof, the Servicer shall request from the
     Master Servicer an initial bid amount and bidding instructions for the
     Servicer to follow at the applicable foreclosure sale.  In no event shall
     the bidding instructions from the Master Servicer supersede or invalidate
     the bidding instructions provided by the respective Primary Mortgage
     Insurer and/or respective Pool Insurer, where applicable.

     13.4.3      BUYDOWN FUNDS USE.  Unless the related Buydown Agreement
     provides otherwise, the Servicer may not use Buydown Funds relating to a
     Mortgage Loan to cure a Delinquency with respect to such Mortgage Loan.
     Any Buydown Funds remaining in the associated Custodial Buydown Account of
     a Mortgage Loan in foreclosure must be disposed of in accordance with the
     terms of the related Buydown Agreement.

     13.4.4      SERVICER'S RESPONSIBILITIES.  Subject to the provisions of
     Article Three hereof, after acquisition of a Mortgaged Property, through
     foreclosure or a deed-in-lieu of foreclosure, or after the Servicer shall
     have taken possession of the Mortgaged Property, whichever occurs first,
     the Servicer shall be responsible for the management of such Mortgaged
     Property.  The Servicer shall remain responsible until possession has been
     assumed by the applicable Primary Mortgage Insurer or the applicable Pool
     Insurer or until such Mortgaged Property are otherwise disposed of, as the
     case may be.  The Servicer shall take such action as is necessary to
     protect the Owner of the related Mortgage Loan's security or, after
     acquisition thereof, ownership interest in such Mortgaged Property.  Such
     action shall include, without limitation, (i) management of such Mortgaged
     Property, (ii) maintenance of such Mortgaged Property and (iii) if such
     Mortgaged Property are vacant, protection of such Mortgaged Property
     against vandals and the elements.

     13.4.5      CONVEYANCE DOCUMENTS.  Where applicable, any conveyance by the
     Servicer to the respective Primary Mortgage Insurer or the respective Pool
     Insurer of a Mortgaged Property shall be made by the form of deed commonly
     used in the particular jurisdiction where such Mortgaged Property is
     located.  The Servicer shall prepare the necessary documents within two
     weeks after the date of sale at foreclosure or confirmation of sale, if
     applicable, or within a reasonable time frame.  The documents shall be
     forwarded to the Master Servicer for approval and execution.  After
     execution by the Owner of the related Mortgage Loan, such documents will be
     returned to the Servicer for delivery to the respective Primary Mortgage
     Insurer or the respective Pool Insurer which is acquiring such Mortgaged
     Property.

Section 13.5   MORTGAGE LOAN REINSTATEMENT

     13.5.1      BORROWER'S FULL PAYMENT.  If a Borrower offers to fully
     reinstate his Mortgage Loan during the foreclosure process, the Servicer
     shall accept the offer.  To achieve
                                      -84-
<PAGE>

     full reinstatement of his Mortgage Loan, a Borrower shall make payment of
     all (i) payments due to bring such Mortgage Loan current, (ii) attorneys'
     fees, (iii) trustees' fees, (iv) any additional legal costs, (v) all
     applicable late fees and (vi) any other expenditures or Advances made by
     the Servicer during the foreclosure process.

     13.5.2      BORROWER'S PARTIAL PAYMENT.  Except where otherwise required by
     applicable law, the Servicer may not accept an amount in payment from a
     Borrower which is less than the amount required for full reinstatement
     pursuant to Section 13.5.1 hereof toward reinstatement of a Mortgage Loan
     during the foreclosure process without the prior written approval from the
     Master Servicer and, where applicable, the respective Primary Mortgage
     Insurer and/or the respective Pool Insurer.

     13.5.3      OBLIGATIONS UPON REINSTATEMENT.  Upon accepting the
     reinstatement of a Mortgage Loan, the Servicer shall immediately contact
     the appropriate foreclosure attorney or trustee to avoid incurring
     additional legal costs or fees.  The Servicer must apply the reinstatement
     Funds upon receipt from a Borrower in payment of the expenses enumerated in
     Section 13.5.1 hereof.  Upon receipt of the reinstatement funds from a
     Borrower the Servicer must (i) notify the Master Servicer of the
     reinstatement of the related Mortgage Loan and (ii) return to the Master
     Servicer, the related Mortgage Note and other related Mortgage Loan
     Documents for reinclusion in the related Mortgage Loan File.

     13.5.4      CERTAIN ASSUMPTIONS PERMITTED.  The Servicer is authorized,
     notwithstanding the other provisions of this Article 13, to permit the
     assumption of a defaulted Mortgage Loan rather than to foreclose or accept
     a deed-in-lieu of foreclosure if, in the Servicer's judgment, the default
     is unlikely to be cured and the assuming borrower meets the underwriting
     guidelines that originally applied to such Mortgage Loan.




                                      -85-
<PAGE>

                                   ARTICLE 14

                               REO ADMINISTRATION


Section 14.1   GENERAL PROVISIONS

     14.1.1      REO ACTION PLAN.  With regard to each REO which is acquired,
     the Servicer shall prepare a plan of action within 30 Business Days after
     the date on which the Owner of the related Mortgage Loan acquires
     marketable title to such REO.  Each plan of action shall set forth (i) a
     recommendation for the most effective manner to dispose of the REO, based
     on a current appraisal report, a broker's price opinion and a market
     analysis; (ii) the steps to be taken by the Servicer to secure such REO;
     and (iii) an estimate of the amount of time that is required to dispose of
     such REO.  The Servicer shall promptly submit copies of each plan of action
     to the Master Servicer and, where applicable, to the respective Primary
     Mortgage Insurer, and/or the respective Pool Insurer.  Unless otherwise
     directed by the Master Servicer, the Servicer shall implement each plan of
     action in an expeditious manner.  Further, the Master Servicer may instruct
     the Servicer to modify any plan of action as the Master Servicer shall
     direct.  The Servicer shall provide the Master Servicer with monthly
     progress reports with regard to each plan of action detailing the status of
     the related REO and the progress achieved in implementing the plan of
     action.

Section 14.2   REO SERVICING

     14.2.1      REO SERVICING REQUIREMENTS.  The Servicer shall service each
     REO from its acquisition through its disposition and shall ensure that all
     funds received with respect to such REO are deposited to the appropriate
     Custodial P&I Account for remittance to the Owner of the related Mortgage
     Loan, unless the Master Servicer has relieved the Servicer of these
     responsibilities by written notification.

     14.2.2      SERVICER'S RESPONSIBILITIES.  In addition to any other
     obligations set forth herein, upon acquisition of each REO, the Servicer
     shall be responsible for:

               (a)  managing, maintaining and securing such REO until it is
                    conveyed or sold;

               (b)  inspecting such REO at least once every 30 days and promptly
                    sending the Master Servicer an updated Property Inspection
                    Report;

               (c)  paying all taxes, insurance, maintenance, management and
                    foreclosure costs relating to such REO;

               (d)  submitting recommendations for listing and soliciting offers
                    on such REO;


                                      -86-
<PAGE>

               (e)  marketing such REO;

               (f)  completing the sale of such REO;

               (g)  depositing sales proceeds relating to such REO into the
                    appropriate Custodial P&I Account for remittance to the
                    Owner of the related Mortgage Loan;

               (h)  where applicable, satisfying all of the Primary Mortgage
                    Insurer's procedural requirements and filing all required
                    forms and claims;

               (i)  where applicable, depositing Primary Mortgage Insurance or
                    Pool Insurance proceeds relating to such REO into the
                    applicable Custodial P&I Account for remittance to the Owner
                    of the related Mortgage Loan;

               (j)  processing the conveyance of such REO to the Primary
                    Mortgage Insurer, where applicable; and

               (k)  reporting (1) all changes in status of such REO and (2) all
                    material expenses relating to such REO to the Master
                    Servicer on a monthly basis.

     14.2.3      NOTICE.  The Servicer shall notify the Master Servicer in
     writing as soon as each REO is acquired.

Section 14.3   REO RECORDS AND REPORTS

     14.3.1      RECORDS RETENTION.  The Servicer shall retain in its files
     copies of all documents, reports and invoices described in this Section.

     14.3.2      EVIDENCE OF TITLE.  Evidence that title to a REO is held by the
     Owner of the related Mortgage Loan shall be submitted by the Servicer to
     the Master Servicer and, if applicable, to the Primary Mortgage Insurer
     and/or the Pool Insurer, within ten Business Days after marketable title to
     such REO has been acquired.

     14.3.3      REO EXPENSES.  At the end of each month following the receipt
     of any invoice relating to expenses incurred in administering each REO, the
     Servicer shall send a report listing such expenses to the Master Servicer
     and, if applicable, to the Primary Mortgage Insurer and/or the Pool
     Insurer.  The Servicer shall retain such invoices in its records and shall,
     by request, (i) produce any such invoices for inspection or (ii) at its own
     expense, provide copies of any such invoices to the Master Servicer and, if
     applicable, to the Primary Mortgage Insurer and/or the Pool Insurer, as
     directed.  The foregoing expense invoices shall include, without
     limitation, the following:

               (a)  insurance premiums;


                                      -87-
<PAGE>

               (b)  real estate tax bills;

               (c)  special assessments;

               (d)  owners' association dues; and

               (e)  utility bills.

     14.3.4      REO DOCUMENTS.  Promptly upon receipt, the Servicer shall send
     copies to the Master Servicer and, where applicable, to the respective
     Primary Mortgage Insurer and/or the respective Pool Insurer, of the
     following documents relating to each REO:

               (a)  any forced placed Hazard Insurance policy or Flood Insurance
                    policy, if applicable;

               (b)  any maintenance contracts;

               (c)  any contractor bids relating to the rehabilitation of such
                    REO pursuant to Section 14.5.3 hereof;

               (d)  an updated Title Insurance policy which reflects the
                    occurrence of foreclosure; and

               (e)  plat map or house location survey, if already available.

Section 14.4   REO MARKETING

     14.4.1      REO MARKETING EFFORTS.  The Servicer shall begin efforts to
     market a REO as soon as marketable title is acquired by the Owner of the
     related Mortgage Loan.

     14.4.2      REO SALES.  The Servicer shall obtain the best market price for
     a REO for the Owner of the related Mortgage Loan while disposing of such
     REO in a timely and efficient manner.  Unless otherwise directed by the
     Master Servicer, the Servicer, acting on behalf of the Owner of the related
     Mortgage Loan, shall dispose or cooperate with the Owner of the related
     Mortgage Loan in disposing of such REO within 24 months after its
     acquisition by the Owner of the related Mortgage Loan.  If the Servicer is
     otherwise unable to sell such REO, unless otherwise directed by the Master
     Servicer, the Servicer shall before the end of the 24-month period
     following the acquisition of such REO, auction such REO to the highest
     bidder in an auction reasonably designed to bring a fair price.  The
     Servicer shall consult with the Master Servicer prior to holding such
     auction.  The Servicer is eligible to bid in such an auction.

     14.4.3      PRIMARY MORTGAGE INSURANCE CONSIDERATIONS.  The Servicer must
     ensure that any action taken with respect to the sale of a REO does not
     jeopardize the maximum benefits available under the related Primary
     Mortgage Insurance Policy, if any, with respect to the related Mortgage
     Loan.  The Servicer must inform the related Primary 

                                      -88-
<PAGE>


     Mortgage Insurer of any listing agreements or purchase offers that are 
     received before the related Primary Mortgage Insurer has finalized the 
     disposition of the claim.

     14.4.4      MASTER SERVICER INSTRUCTIONS.  Where the Servicer receives
     instructions from the Master Servicer regarding the marketing and sale of a
     REO, either with respect to a specific property or generally, such
     instructions shall govern the Servicer's actions, notwithstanding any
     provision herein.

     14.4.5      POOL INSURANCE CONSIDERATIONS.  The Servicer must ensure that
     any action taken with respect to the sale of a REO does not jeopardize the
     maximum benefits available under the related Pool Insurance Policy, if any,
     with respect to the related Mortgage Loan.  The Servicer must inform the
     related Pool Insurer of any listing agreements or purchase offers that are
     received before the Primary Mortgage Insurer has finalized the disposition
     of the claim.

Section 14.5   REO REHABILITATION

     14.5.1      REO REHABILITATION REQUIREMENT.  Unless the Master Servicer
     shall otherwise direct, and subject to Section 17.6.2, the Servicer must
     ensure that any rehabilitation work (which shall not include the cleaning
     of a recently acquired REO property) to any REO which is necessary to
     restore such REO to a marketable condition is performed and that such work
     is performed in a professional and workmanlike manner.

     14.5.2      MASTER SERVICER APPROVAL.  The Servicer must obtain the Master
     Servicer's prior written approval for rehabilitation work (which shall not
     include the cleaning of a recently acquired REO property) when the
     aggregate rehabilitation expenses with regard to a REO exceeds seven
     thousand five hundred dollars ($7,500.00).

     14.5.3      WRITTEN CONTRACTOR BIDS.  The Servicer shall solicit detailed
     written bids from independent contractors when the value of a contract for
     rehabilitation of a REO exceeds five hundred dollars ($500.00) (which shall
     not include the cleaning of a recently acquired REO property).  Where the
     value of a contract exceeds five thousand dollars ($5,000.00) (which shall
     not include the cleaning of a recently acquired REO property), the Servicer
     shall receive bids from a minimum of two independent and unrelated
     contractors and, upon request, forward copies of such bids to the Master
     Servicer.  Where the value of a contract exceeds fifty thousand dollars
     ($50,000.00) (which shall not include the cleaning of a recently acquired
     REO property), the Servicer shall receive bids from a minimum of three
     independent and unrelated contractors and, upon request, forward copies of
     such bids to the Master Servicer.

     14.5.4      PRIMARY MORTGAGE INSURANCE CONSIDERATIONS.  If a Mortgaged
     Property which has become a REO and the related Mortgage Loan is covered by
     a policy of Primary Mortgage Insurance, the Servicer shall notify the
     related Primary Mortgage Insurer of such rehabilitation plans before the
     completion of the Primary Mortgage Insurance claim to ensure reimbursement
     from the Primary Mortgage Insurer.  If the related Primary Mortgage Insurer
     elects not to reimburse all rehabilitation expenses, work

                                      -89-
<PAGE>

     should be postponed until after final disposition of the Primary Mortgage
     Insurance claim.

Section 14.6   REO ADMINISTRATION FAILURE.

     14.6.1      SERVICER REMOVAL.  The Master Servicer may in its reasonable
     discretion, in the event that the Servicer's actions or omissions result in
     damage to any REO or a failure to sell any REO property within a reasonable
     time, the Master Servicer may remove the servicing of such REO from the
     Servicer and assume responsibility for management, control, maintenance,
     security, rehabilitation and disposition of such REO.

     14.6.2      SERVICER'S CONTINUING OBLIGATIONS.  In the event that the
     Servicer is removed from servicing a REO by virtue of the provisions of
     Section 14.6.1, the Servicer, as to such REO, will nevertheless remain
     responsible to (a) pay when due all insurance premiums, property taxes and
     assessments; (b) file when due all claims for Primary Mortgage Insurance,
     Pool Insurance, Hazard Insurance and, if applicable, Flood Insurance
     benefits; and (c) fulfill any other related responsibilities required by
     the Master Servicer.

     14.6.3      SERVICER'S DUTY TO COMPENSATE.  Whether or not a Servicer is
     removed from servicing with respect to a particular REO, the Servicer must
     compensate the Master Servicer for any damages caused as a result of the
     Servicer's breach of its obligation to service efficiently each REO.  The
     Servicer acknowledges that any damages suffered as a result of the
     Servicer's inefficiency in managing a REO may not be quantified in advance
     of the Master Servicer assuming responsibility for such REO.



                                      -90-
<PAGE>

                                   ARTICLE 15

                                   INSURANCE


Section 15.1    GENERAL PROVISIONS

     15.1.1      INSURANCE REQUIREMENTS

     The Servicer must verify that each Mortgage Loan has the insurance coverage
     required pursuant to Article 15 and 16.  All claims arising under Insurance
     Policies maintained hereunder must be settled or otherwise disposed of by
     the Servicer, and all such Insurance Policies must be maintained,
     including, without limitation, the payment of premiums on a timely basis,
     by the Servicer at no expense to the Owner of the related Mortgage Loan, or
     the Master Servicer.

     If the Insurance Proceeds paid in respect of any Mortgage Loan are not used
     to repair the related Mortgaged Property due to the particular
     circumstances of the loss, and instead such Insurance Proceeds are applied
     to reduce the Unpaid Principal Balance of such Mortgage Loan and such
     application causes the Unpaid Principal Balance of such Mortgage Loan to
     reduce to zero, the Servicer must treat the application of such proceeds as
     a Liquidation, and notify the Master Servicer of such Liquidation.

     15.1.2      UNINSURED LOSSES.  The Servicer must take the following actions
     in the event of loss or damage to any Mortgaged Property caused by an
     earthquake, flood, tornado or other natural disaster immediately following,
     the earlier to occur of (x) its notification or discovery of such loss or
     damage or (y) the time at which the Servicer reasonably should have known
     of such loss or damage in the exercise of Prudent Servicing Practices:

               (a)  determine the extent of the losses or damages;

               (b)  secure any abandoned Mortgaged Property from vandalism and
                    the elements;

               (c)  communicate with and counsel the respective Borrower on any
                    disaster relief programs or other assistance which is
                    available; and

               (d)  notify the Master Servicer and recommend appropriate action
                    to protect the interests of the Owner of the related
                    Mortgage Loan and the respective Borrower.

     15.1.3      SERVICER'S OBLIGATION TO MAINTAIN INSURANCE.  If the Servicer
     discovers that a Borrower does not have adequate insurance coverage as
     required pursuant to the provisions of this Article, the Servicer must
     obtain and maintain at its own expense the required insurance coverage on
     the related Mortgaged Property.  The Servicer may, in

                                      -91-
<PAGE>

     its discretion, cause the required coverage to be maintained through a
     blanket insurance policy.  Such expenses shall not be recoverable by the
     Servicer from the Master Servicer or the Principal or from payments on the
     Mortgage Loan or any other source relating to the related Mortgage Loan or
     the related Mortgaged Property, other than from Liquidation Proceeds or
     Insurance Proceeds from the related Mortgage Loan.  To the extent permitted
     by applicable law and the related Mortgage Loan Documents, the Servicer may
     initiate forced placed coverage with respect to such Mortgaged Property and
     thereafter attempt to recover such expenses from the related Borrower.

     15.1.4      INSURANCE NOTICES.  The Servicer must arrange for all insurance
     drafts, notices, policies, invoices, or other correspondence to be
     delivered directly to the Servicer.  The Owner of the related Mortgage
     Loan, its successors and assigns, must be named as the Mortgagee, the
     endorsement must show the Servicer's address as shown in the following
     example:

          [Owner of the Mortgage Loan, its successors and
          assigns]
          c/o [Servicer]
          [Servicer's Address]

     15.1.5      DEFAULT BY INSURER.  If the Servicer knows or has reasonable
     cause to suspect that an insurer under any applicable insurance policy
     required pursuant to the provisions of this Article will, for any reason,
     be unable to pay a valid claim, the Servicer shall immediately notify the
     Master Servicer upon receipt of such information or formulation of such
     belief.  The Servicer shall then (i) find a substitute insurer and (ii) pay
     any premiums to the insurer.  In any case, the Servicer shall not be liable
     in any way for the financial inability of any insurer under any insurance
     policy required herein to pay a valid claim so long as the provisions of
     Article 15 and 16 hereof are complied with.

     15.1.6      INSURANCE CARRIER RATING.  Each Insurance Policy must be
     underwritten by an insurance carrier that is a FNMA approved Mortgage
     Insurer.

     15.1.7      INSURANCE CARRIER LICENSES.  Each insurance carrier must be
     licensed or otherwise authorized by law to conduct business in each state
     in which a related Mortgaged Property is located.

     15.1.8      RISK EXPOSURE.  If any Mortgaged Property is exposed to hazards
     not fully covered by Hazard Insurance or Flood Insurance, the Servicer must
     notify the Master Servicer immediately with a recommendation for additional
     coverage.

     15.1.9      EVIDENCE OF INSURANCE.  (a) The Servicer must maintain the
     following documentation with respect to insurance coverage on each Mortgage
     Loan:

               (i)       if Primary Mortgage Insurance is required, a copy of
                         the Primary Mortgage Insurance policy and any related
                         endorsements;

                                      -92-
<PAGE>

               (ii)      for one- to four-unit dwellings, an original of the
                         Hazard Insurance policy, if applicable, and any related
                         endorsements;

               (iii)     a copy of the Title Insurance policy and any related
                         endorsements;

               (iv)      For properties covered under a blanket policy, an
                         original of any blanket policy, and any related
                         endorsements; and

               (v)       an original of any Flood Insurance policy, if Flood
                         Insurance is required, and any related endorsements.

     (b) A certificate of insurance is acceptable in lieu of any of the
     foregoing policies if it contains the following information:

               (i)       named insured and Mortgagee or, for PUD or Condominium
                         Units, named insured association, unit owner and unit
                         owner Mortgagee;

               (ii)      address of the Mortgaged Property;

               (iii)     type, amount and effective dates of coverage;

               (iv)      deductible amount;

               (v)       any endorsement or optional coverage obtained and made
                         part of the original policy;

               (vi)      insurer's agreement to provide at least ten day's prior
                         written notice to the Servicer and Borrower (or
                         applicable unit owner Mortgagee if for a PUD or
                         Condominium Unit) before any reduction in coverage or
                         cancellation of the policy; and

               (vii)     signature of an authorized representative of the
                         insurer, if required by applicable law.

Section 15.2   PRIMARY MORTGAGE INSURANCE

     15.2.1      PRIMARY MORTGAGE INSURANCE REQUIREMENT.  Unless Primary
     Mortgage Insurance coverage with respect to a Mortgage Loan has been waived
     in writing by the Owner of the Mortgage Loan at the time it purchases such
     Mortgage Loan or such Primary Mortgage Insurance is canceled as provided in
     Section 15.2.4 herein, the Servicer must maintain at all times Primary
     Mortgage Insurance on any Mortgage Loan with an original LTV ratio in
     excess of 80%.


                                      -93-
<PAGE>

     15.2.2      PRIMARY MORTGAGE INSURANCE COVERAGE.  As to each Mortgage Loan
     which is required to have Primary Mortgage Insurance, pursuant to this
     Agreement or the related Mortgage Loan Documents, Primary Mortgage
     Insurance must at least provide coverage which insures against loss of that
     portion of the Unpaid Principal Balance of the Mortgage Loan that exceeds
     75% of the Value of the Mortgaged Property.  If the Mortgage Loan provides
     for negative amortization or for the potential of negative amortization,
     the Primary Mortgage Insurance policy must also insure any increase in the
     Unpaid Principal Balance from the original principal balance of the related
     Mortgage Note.

     15.2.3      PRIMARY MORTGAGE INSURER DOWNGRADING.  In the event that the
     rating assigned by a Rating Agency to the claims paying ability of any
     Primary Mortgage Insurer is reduced below the level permitted under Section
     15.1.6, the Servicer will use its best efforts to replace each Primary
     Mortgage Insurance Policy issued by such Primary Mortgage Insurer with a
     new Primary Mortgage Insurance policy issued by an insurer whose claims
     paying ability is acceptable to the Master Servicer.  The premium for any
     replacement Primary Mortgage Insurance policy shall not exceed the premium
     for the discontinued Primary Mortgage Insurance policy.

     15.2.4      PRIMARY MORTGAGE INSURANCE CANCELLATION.  If a Borrower
     requests cancellation of the Primary Mortgage Insurance policy with respect
     to his Mortgaged Property, the following requirements must be met:

               (a)  The current LTV ratio must be 80% or less.  The current LTV
                    ratio must be calculated by dividing the Unpaid Principal
                    Balance of the related Mortgage Loan by the Current Value of
                    the Mortgaged Property;

               (b)  The related Mortgage Loan may not have been 30 days or more
                    delinquent within the preceding twelve months; and

               (c)  There may not have been any other default under the terms of
                    the related Mortgage Loan at any time during the preceding
                    twelve months.

     If the foregoing requirements are met, the Servicer may request the
     cancellation of such Primary Mortgage Insurance policy by submitting to the
     Master Servicer a Request for Primary Mortgage Insurance Cancellation.  If
     there are indications that the Current Value of the Mortgaged Property has
     declined, the Servicer shall obtain an Appraisal Report with respect to
     such Mortgaged Property that is not more than 60 days old.  The expense of
     such an Appraisal Report shall not be borne by the Master Servicer.  The
     Current Value of such Mortgaged Property set forth the Appraisal Report
     shall be used as the divisor in clause (a) hereof to determine whether the
     recalculated current LTV is 80% or less.  If the recalculated current LTV
     is greater, the Primary Mortgage Insurance cancellation request will be
     denied.  In addition, the Master Servicer may deny such a request if it
     determines, in its reasonable discretion, that the interests of the Owner
     of the related Mortgage Loan may be harmed by such cancellation.


                                      -94-
<PAGE>

     15.2.5      PRIMARY MORTGAGE INSURANCE CLAIMS.  The Servicer must take all
     steps to ensure the payment of the maximum benefits payable under the terms
     of any Primary Mortgage Insurance policy.  The Servicer must work
     diligently with each Primary Mortgage Insurer to determine whether such
     insurer will settle the claim by taking title to the Mortgaged Property in
     question or in some other manner.  The Servicer also must notify the Master
     Servicer immediately in writing of any decision made by the applicable
     Primary Mortgage Insurer relative to a claim.  Upon receipt of any Primary
     Mortgage Insurance proceeds, the Servicer must deposit such amounts in the
     appropriate Custodial P&I Account.  The Servicer shall promptly notify the
     Master Servicer in writing if any Primary Mortgage Insurer at any time
     denies any or all of a claim filed under its Primary Mortgage Insurance
     policy.

Section 15.3   HAZARD INSURANCE

     15.3.1      HAZARD INSURANCE REQUIREMENT.  Unless alternative coverage is
     provided pursuant to Section 16.3 hereunder, the Servicer must ensure that
     each Mortgaged Property is covered at all times by Hazard Insurance.

     15.3.2      HAZARD INSURANCE COVERAGE.  As to each Mortgaged Property, the
     amount of Hazard Insurance must be at least equal to the lesser of (a) the
     Unpaid Principal Balance of the related Mortgage Loan or (b) 100% of the
     insurable value of the improvements on the Mortgaged Property; provided,
     however, that in no case shall the amount of Hazard Insurance be less than
     the amount required to fully compensate for any damage to the improvements
     on the Mortgaged Property on a replacement cost basis.

     15.3.3      HAZARD INSURANCE DEDUCTIBLE.  Except as a greater amount may be
     required by an applicable law, each Hazard Insurance deductible may not
     exceed the lesser of (a) $1,000 or (b) one percent of the applicable amount
     of coverage.

     15.3.4      HAZARD INSURANCE VACANCY COVERAGE.  The Servicer must ensure
     that each Mortgaged Property is adequately covered even when vacant and,
     where available, must obtain a vacancy permit endorsement.

     15.3.5      HAZARD INSURANCE MORTGAGEE PROVISIONS.  Each Hazard Insurance
     Policy must contain or have attached a standard mortgagee clause in the
     form customarily used by or required by private institutional mortgage loan
     investors.  Such clause must provide that the Hazard Insurance carrier will
     notify the named Mortgagee at least ten days before any reduction in
     coverage or cancellation of the policy.  All mortgagee clauses must be
     properly endorsed, necessary notices of transfer must be given and any
     other action must be taken that is necessary in order to protect the
     interests of the Owner of the related Mortgage Loan, its successors and/or
     assigns.  The standard mortgagee clause should read as follows: "Insuring
     [Servicer's Name], as agent for the [Owner of the Mortgage Loan], its
     successors and/or assigns."

Section 15.4    FLOOD INSURANCE

                                      -95-
<PAGE>

     15.4.1      FLOOD INSURANCE REQUIREMENT.  Unless alternate coverage is
     provided pursuant to Section 16.6 hereunder, the Servicer must ensure that
     Flood Insurance is maintained at all times on Mortgaged Property that are
     in a special flood hazard area identified by the Secretary of HUD or the
     Director of the Federal Emergency Management Agency.

     15.4.2      FLOOD INSURANCE COVERAGE.  As to each Mortgaged Property, the
     amount of Flood Insurance must be at least equal to the lesser of (a) the
     maximum amount available under the National Flood Insurance Program's
     regular program or its emergency program, (b) the Unpaid Principal Balance
     of the related Mortgage Loan or (c) 100% of the replacement cost of the
     improvements on the Mortgaged Property.

     15.4.3      FLOOD INSURANCE DEDUCTIBLE.  Except as a greater amount may be
     required by applicable law, each Flood Insurance deductible may not exceed
     the lesser of (a) $1,000 or (b) one percent of the applicable amount of
     coverage.

Section 15.5   TITLE INSURANCE

     15.5.1      TITLE INSURANCE REQUIREMENT.  Unless otherwise directed by the
     Master Servicer, the Servicer shall maintain at all times with respect to
     each Mortgage Loan and the related Mortgaged Property a Title Insurance
     policy in full force and effect until such Mortgage Loan is fully paid.

     15.5.2      TITLE INSURANCE COVERAGE.  The Servicer shall not reduce the
     amount of or otherwise change the scope of the coverage under, or otherwise
     do or authorize any act or omission that would affect the coverage of, any
     Title Insurance policy, unless the Servicer has received written direction
     from the Master Servicer specifying the amount or amounts or scope to which
     the coverage is to be changed.

     15.5.3      SERVICER'S OBLIGATIONS.  The Servicer shall perform and comply
     with all requirements and conditions of each Title Insurance policy for
     each Mortgage Loan and the related Mortgaged Property that are to be
     performed or observed by the "Insured" or obligee thereunder as a condition
     to maintaining and keeping it in force, or making a claim under, such Title
     Insurance policy.  The Servicer shall be named as a payee on all Title
     Insurance policy loss drafts, and upon receipt thereof, the funds shall be
     credited to the extent of the sum of (i) the Unpaid Principal Balance of
     such Mortgage Loan and any interest accrued thereon, (ii) any outstanding
     advances thereon and (iii) any expenses owed by such Borrower which are due
     the Owner of such Mortgage Loan, the Master Servicer or the Servicer,
     whether for its own account or others, to the appropriate Custodial P&I
     Account and the balance of such funds, if any, shall be credited to the
     appropriate Custodial T&I Account.

     15.5.4      POLICY CUSTODY.  The Servicer shall cause the original of such
     Title Insurance policy to be sent directly to the Custodian.


                                      -96-
<PAGE>

     15.5.5      TITLE INSURANCE CLAIMS.  The Master Servicer must be notified
     contemporaneously with the making of any claim under the Title Insurance
     policy.  The Servicer shall disburse the proceeds of any such settlement in
     accordance with the instructions and requirements of the Master Servicer.

Section 15.6   INSURANCE LOSS SETTLEMENTS

     15.6.1      SETTLEMENT APPROVAL.  The approval of the Master Servicer need
     not be requested for disposition of insurance loss settlements where
     property damage is $10,000 or less, and the Servicer may disburse the loss
     proceeds as provided herein.  The Master Servicer must be notified before
     disposition of any insurance loss settlement involving property damage over
     $10,000.

     15.6.2      SETTLEMENT DISBURSEMENTS.  For each Mortgage Loan, including a
     Mortgage Loan secured by Mortgaged Property located in a Condominium
     Project or PUD, the Servicer is fully responsible for the disbursement of
     insurance loss settlements under each Hazard Insurance policy and each
     Flood Insurance policy, including but not limited to:

               (a)  arranging for and authorizing the restoration and
                    rehabilitation of the related damaged Mortgaged Property in
                    cooperation with the Borrower;

               (b)  subject to applicable law, applying the Insurance Proceeds
                    to reduction of the Unpaid Principal Balance of such
                    Mortgage Loan, provided that the Servicer (i) shall have
                    determined that such proceeds are insufficient to repair and
                    restore the related Mortgaged Property, or that the repair
                    and restoration of such Mortgaged Property is not feasible;
                    and (ii) shall have obtained authorization of the Master
                    Servicer to make such application of the Insurance Proceeds;

               (c)  collecting, endorsing and disbursing the Insurance Proceeds
                    and arranging for progress inspections and payments, if
                    necessary;

               (d)  complying with all requirements of any Primary Mortgage
                    Insurance policy pertaining to the filing of claims and the
                    settlement of insurance losses to assure that the security
                    of such Mortgage Loan is not impaired and that the coverage
                    of such Primary Mortgage Insurance policy is not jeopardized
                    or otherwise adversely affected;

               (e)  assuring, through the receipt of Borrower's affidavits,
                    repair contract copies, lien waivers and the like, that the
                    priority of the lien of the Security Instrument is
                    preserved, and that the Insurance Proceeds are applied to
                    the restoration or repair of the related Mortgaged Property
                    if not applied in payment of such Mortgage Loan;


                                      -97-
<PAGE>

               (f)  obtain releases or waivers of liens and taking such other
                    actions as are necessary to avoid the filing of laborers',
                    materialmen's or mechanic's liens against the related
                    Mortgaged Property; and

               (g)  maintaining procedures and practices acceptable to the
                    Master Servicer and in conformity with Prudent Servicing
                    Practices for the control and disposition of insurance loss
                    drafts.

     15.6.3      SETTLEMENT FUNDS.  The Servicer shall be named as a payee on
     all insurance loss drafts and upon receipt thereof, the funds shall be
     credited to the Borrower's Insurance Proceeds balance and deposited into
     (a) where such funds will be applied to the repair and restoration of the
     related Mortgaged Property, one or more separate escrow accounts, so that
     the balance on deposit in such accounts is fully insured at all times by
     the FDIC through either the BIF or SAIF or (b) where such funds will not be
     applied to the repair and restoration of the related Mortgaged Property,
     the respective Custodial P&I Account.

     15.6.4      SETTLEMENT NOTICE.  The Servicer shall report any such
     settlement to the Master Servicer on a Hazard Insurance Loss Draft
     Notification, together with a summary of the disposition of the proceeds.

     15.6.5      CONTINUING COVERAGE.  If a letter of assurance is obtained from
     any insurer under a Hazard Insurance policy or a Flood Insurance policy
     that the insurance coverage will continue in full force and effect, the
     Servicer shall deposit such letter in the appropriate Servicer Mortgage
     Loan File.

     15.6.6      PROPERTY INSPECTIONS.  The Servicer shall conduct property
     inspections in accordance with the milestones of the repair and
     rehabilitation plan for such Mortgaged Property and prepare Property
     Inspection Reports on any Mortgaged Property involving property damage over
     $15,000.  The Servicer shall furnish a copy of the repair and
     rehabilitation plan for such Mortgaged Property to the Master Servicer upon
     request.








                                      -98-
<PAGE>

                                   ARTICLE 16

                          CONDOMINIUM AND PUD INSURANCE


Section 16.1   GENERAL PROVISIONS

     16.1.1      APPLICABILITY.  The provisions of this Article pertain solely
     to Mortgage Loans secured by Condominium Units or PUD Units.

     16.1.2      PREMIUMS.  The premiums for insurance policies required
     pursuant to this Article must be paid as a common expense by the Owners'
     Association.

     16.1.3      DEDUCTIBLE RESERVES.  Funds for each of the deductibles
     associated with the insurance policies required pursuant to this Article
     must be included in the Owners' Association's reserves and must be so
     designated.

     16.1.4      NAME OF INSURED.  The name of the insured stated under each
     Insurance Policy required pursuant to the provisions of this Article must
     be similar in form and substance to the following:

          "Association of Owners of the [Name of Condominium Project or PUD] for
          use and benefit of the individual Condominium or PUD Unit owners"
          (designated by name, if required).

     16.1.5      MORTGAGEE CLAUSE.  Each insurance policy required pursuant to
     the provisions of this Article must contain the standard mortgagee clause
     endorsed to provide that any disbursements will be paid to the Owners'
     Association for the use and benefit of Mortgagees as their interests may
     appear, or otherwise endorsed to fully protect the interest of (a) the
     Owner of the respective Mortgage Loan and (b) the holders of a beneficial
     interest therein, if any.

     16.1.6      RECONSTRUCTION COVERAGE.  If, with respect to a PUD or
     Condominium Project in which a Mortgaged Property is located, there is a
     construction code provision that would require changes to undamaged
     portions of the PUD or Condominium Project's building(s) even when only
     part of a building is destroyed by an insured hazard, then the Servicer
     must ensure that each insurance policy required by this Article contains
     the necessary construction code endorsements to cover this exposure.

Section 16.2   COMMON AREA MULTIPLE PERIL INSURANCE

     16.2.1      COMMON AREA MULTIPLE PERIL INSURANCE REQUIREMENT.  The Servicer
     must ensure that the Owner's Association maintains, with respect to the PUD
     or Condominium Project in which a Mortgaged Property is located, a policy
     of Common Area Multiple Peril Insurance, with premiums being paid as a
     common expense.  The Common Area Multiple Peril Insurance policy must at
     least protect against loss or

                                      -99-
<PAGE>

     damage by fire and all other hazards that are normally covered by the
     standard extended coverage endorsement, and all of the perils customarily
     covered for similar types of projects, including those covered by the
     standard "all risk" endorsement.

     16.2.2      COMMON AREA MULTIPLE PERIL INSURANCE COVERAGE.  As to each
     Condominium Project or PUD in which a Mortgaged Property is located, a
     Common Area Multiple Peril Insurance policy must cover 100% of the current
     replacement cost of all of the common areas (other than the land and
     foundation), common elements including fixtures and building service
     equipment, as well as common personal property and supplies.

     16.2.3      COMMON AREA MULTIPLE PERIL INSURANCE DEDUCTIBLE.  Except as a
     greater amount may be required by applicable law, each Common Area Multiple
     Peril Insurance deductible may not exceed the lesser of (a) $10,000 or (b)
     one percent of the applicable amount of coverage.

     16.2.4      BOILER AND MACHINERY COVERAGE. If a steam boiler is operating
     within the Condominium Project or PUD in which a Mortgaged Property is
     located, then the Servicer must ensure that boiler and machinery coverage
     is in force at all times. This coverage must be evidenced by the standard
     form of boiler and machinery endorsement.  The minimum liability coverage
     per accident under boiler and machinery coverage must equal the insurable
     value of the boiler and equipment and the building housing such boiler or
     machinery, based upon current replacement cost, or $2 million, whichever is
     less.

Section 16.3   BLANKET HAZARD INSURANCE

     16.3.1      BLANKET HAZARD INSURANCE REQUIREMENT.  Unless alternative
     coverage is provided pursuant to Section 16.3 hereunder, the Servicer must
     verify that each such Mortgaged Property is covered at all times by Hazard
     Insurance policy which provides blanket coverage for the individual units
     in the Condominium Project or PUD.

     16.3.2      BLANKET HAZARD INSURANCE COVERAGE.  As to each Condominium
     Project or PUD which contains a Mortgaged Property for which its Hazard
     Insurance coverage is provided through a blanket policy, the amount of
     Hazard Insurance for a blanket policy a Condominium Project or PUD must be
     at least equal to the lesser of (a) the aggregate of the outstanding
     principal balances of all mortgage notes secured by units within the
     Condominium Project or PUD (including the Mortgage Notes secured by
     Mortgaged Properties) or (b) 100% of the replacement cost of the
     improvements on the Condominium Project or PUD Unit site.





                                      -100-
<PAGE>

     16.3.3      BLANKET HAZARD INSURANCE DEDUCTIBLE.  Except as a greater
     amount may be required by an applicable law, each Hazard Insurance
     deductible for a blanket policy covering a Condominium Project or PUD may
     not exceed the lesser of (a) $10,000 or (b) one percent of the applicable
     amount of coverage.

Section 16.4   COMMON AREA COMPREHENSIVE GENERAL LIABILITY (CGL) INSURANCE

     16.4.1      COMMON AREA CGL INSURANCE REQUIREMENT.  The Servicer must
     ensure that the Owners' Association maintains a Comprehensive General
     Liability Insurance policy covering all of the common areas, common
     elements, commercial spaces and public ways in the Condominium Project or
     PUD in which a Mortgaged Property is located.

     16.4.2      COMMON AREA CGL INSURANCE COVERAGE.  As to each Condominium
     Project or PUD in which a Mortgaged Property is located, a CGL Insurance
     policy should provide coverage of at least $1,000,000 for personal injury,
     bodily injury or property damage for any single occurrence.  Each CGL
     Insurance policy must contain a severability of interest endorsement
     preventing the insurer from denying the claim of a Condominium or PUD Unit
     owner because of negligent acts of the Owners' Association or other unit
     owners.  Each CGL Insurance policy must include all other types of coverage
     and endorsements in the types and amounts required by private institutional
     mortgage loan investors for developments similar in construction, location
     and use.

Section 16.5   OWNERS' ASSOCIATION FIDELITY INSURANCE

     16.5.1      OWNERS' ASSOCIATION FIDELITY INSURANCE REQUIREMENT.  The
     Servicer must ensure that the Owners' Association maintains a fidelity bond
     or insurance against dishonest and fraudulent acts on the part of
     directors, managers, trustees, employees or volunteers responsible for
     handling funds belonging to or administered by the association.

     16.5.2      OWNERS' ASSOCIATION FIDELITY INSURANCE COVERAGE.  The Owners'
     Association fidelity bond or insurance must name the Owners' Association as
     the insured and must be written in an amount sufficient to provide
     protection at least 150% of the insured's estimated annual operating
     expenses and reserves.  An appropriate endorsement to the policy to cover
     any persons who serve without remuneration must be added if the policy
     would not otherwise cover volunteers.  Owners' Association fidelity
     insurance coverage must be in an amount equal to at least 3 months
     assessments on all units in the Condominium Project or PUD.  Owners'
     Association fidelity insurance coverage is not required if the Condominium
     Project or the PUD have fewer than 20 units.

Section 16.6   BLANKET FLOOD INSURANCE

     16.6.1      BLANKET FLOOD INSURANCE REQUIREMENT.  Where a Mortgaged
     Property is a Condominium Unit or PUD Unit and is not individually covered
     by a Flood Insurance policy in accordance with the provisions of Section
     15.4 hereof, the Servicer must

                                      -101-
<PAGE>

     verify that a Flood Insurance policy which provides blanket coverage for
     the individual units in the Condominium Project or PUD, is maintained at
     all times on Mortgaged Property that are in a special flood hazard area
     identified by the Secretary of HUD or the Director of the Federal Emergency
     Management Agency.

     16.6.2      BLANKET FLOOD INSURANCE COVERAGE.  As to each Condominium
     Project or PUD which contains a Mortgaged Property for which its Flood
     Hazard Insurance coverage is provided through a blanket policy, the amount
     of Flood Insurance must be at least equal to the lesser of (a) the maximum
     amount available under the National Flood Insurance Program's regular
     program or the its emergency program, (b) the aggregate of the outstanding
     principal balances of all mortgage notes secured by units within the
     Condominium Project or PUD (including the Mortgage Notes secured by
     Mortgaged Properties), or (c) 100% of the replacement cost of the
     improvements on the Condominium Project or PUD Unit site.

     16.6.3      BLANKET FLOOD INSURANCE DEDUCTIBLE.  Except as a greater amount
     may be required by applicable law, each Flood Insurance deductible for a
     blanket policy covering a Condominium Project or PUD may not exceed the
     lesser of (a) $5,000 or (b) one percent of the applicable amount of
     coverage.








                                      -102-
<PAGE>


                                   ARTICLE 17

                                    ADVANCES


Section 17.1   PRINCIPAL AND INTEREST ADVANCES

     17.1.1      P&I ADVANCE REQUIREMENT.  The Servicer shall advance P&I
     Advances and deposit to the respective Custodial P&I Account on or before
     each Remittance Date an amount equal to the aggregate of the difference, if
     any, with respect to each Mortgage Loan, between (a) the Monthly Payment
     that each Borrower was required to pay to the Servicer on the immediately
     preceding Due Date (excluding the amount of the related Servicing Fee) and
     (b) the amount actually received with respect to the related Monthly
     Payment by the Servicer (excluding the amount of the related Servicing
     Fee).

     17.1.2      P&I ADVANCE LIMITATION.  The Servicer is required to make P&I
     Advances with respect to a Mortgage Loan unless a P&I Advance is reasonably
     determined by the Servicer to be eventually non-recoverable from any
     Insurance Proceeds, Liquidation Proceeds, or the Borrower.

     17.1.3      P&I ADVANCE RECOVERY.  The Servicer's P&I Advance will be
     recoverable from subsequent Borrower Monthly Payments, Insurance Proceeds,
     Liquidation Proceeds or, if the Representing Party is obligated to purchase
     a Mortgage Loan from its Owner, from the price paid for such Mortgage Loan.

     17.1.4      ADVANCE DURING BANKRUPTCY AND FORECLOSURE.  During litigation,
     bankruptcy proceedings or foreclosure proceedings pertaining to any
     Mortgage Loan or while REO transferred to the Owner of a related Mortgage
     Loan through foreclosure or a deed-in-lieu of foreclosure is held by such
     Owner or its successors, the Servicer must continue to make monthly P&I
     Advances in respect of each such Mortgage Loan or REO to the respective
     Custodial P&I Account.  Subject to the provisions of Section 17.1.2 hereof,
     these P&I Advances must be made until the (i) Liquidation of each Mortgage
     Loan subject to such proceedings or (ii) in the case of REO transferred to
     the Owner of Mortgage Loan through foreclosure or a deed-in-lieu of
     foreclosure, the Liquidation of such REO. Advances with respect to REO will
     be made as if the related Mortgage Loan and Mortgage Note remained in
     effect.

Section 17.2   FORECLOSURE ADVANCES

     17.2.1      FORECLOSURE ADVANCE REQUIREMENT.  During foreclosure
     proceedings, the Servicer must advance from its own funds all foreclosure
     expenses as they occur in accordance with the terms of this Agreement.
     Such advances must be made by the Servicer up to the time of final
     disposition of the related Mortgaged Property.

     17.2.2      FORECLOSURE ADVANCE LIMITATION.  The Servicer is required to
     make advances pursuant to Section 17.2.1 with respect to a Mortgage Loan
     unless the Servicer

                                      -103-
<PAGE>

     reasonably determines (i) that such foreclosure will not increase the
     proceeds to the Owner thereof or the beneficial owners thereof of
     liquidation of such Mortgage Loan after reimbursement of the Servicer for
     its expenses or (ii) that such expenses will be eventually non-recoverable
     from any Insurance Proceeds, Liquidation Proceeds or the Borrower.

     17.2.3      FORECLOSURE ADVANCE RECOVERY.  If foreclosure proceedings are
     terminated, the Servicer must collect all legal fees and costs from the
     Borrower.  Otherwise, the Servicer's advances for reasonable foreclosure
     expenses will be recoverable from Insurance Proceeds, Liquidation Proceeds
     or, if the Representing Party is obligated to purchase a Mortgage Loan from
     its Owner, from the price paid for such Mortgage Loan.

     17.2.4      FORECLOSURE ADVANCE RECORDS.  All foreclosure advances by the
     Servicer and reimbursements to the Servicer must be clearly identifiable in
     the respective Custodial T & I Account.

Section 17.3   TAX & INSURANCE ADVANCES

     17.3.1      T&I ADVANCE REQUIREMENT.  If a Borrower's Escrow Funds are
     insufficient to pay taxes or insurance premiums, the Servicer must advance
     from its own funds to the respective Custodial T&I Account an amount
     sufficient to cover the shortage and so as to assure the maintenance of a
     first lien position of the related Security Instrument on the related
     Mortgaged Property.

     17.3.2      T&I ADVANCE RECOVERY.  T&I Advances may be recovered from the
     Borrower's subsequent monthly escrow payments, Insurance Proceeds,
     Liquidation Proceeds or the Borrower, but must never be recovered from
     scheduled principal or interest collections.  The Servicer may not recover
     T&I Advances from another Borrower's Escrow Funds.

     17.3.3      T&I ADVANCE LIMITATION.  The Servicer is required to make a T&I
     Advance with respect to a Mortgage Loan unless such T&I Advance is
     reasonably determined by the Servicer to be eventually non-recoverable from
     any Insurance Proceeds, Liquidation Proceeds, or the Borrower.

     17.3.4      ADVANCE DURING BANKRUPTCY AND FORECLOSURE.  During litigation,
     bankruptcy proceedings or foreclosure proceedings pertaining to any
     Mortgage Loan or while REO transferred to the Owner of a related Mortgage
     Loan through foreclosure or a deed-in-lieu of foreclosure is held by such
     Owner, the Servicer must continue to make required T&I Advances in respect
     of each such Mortgage Loan or REO to the respective Custodial T&I Account.
     These T&I Advances must be made until each Mortgage Loan subject to such
     proceedings is liquidated or in the case of REO transferred to the Owner of
     the related Mortgage Loan through foreclosure or a deed-in-lieu of
     foreclosure is liquidated.  Advances with respect to REO will be made as if
     the related Mortgage Loan and Mortgage Note remained in effect.

                                      -104-
<PAGE>

Section 17.4   NON-RECOVERABLE ADVANCES

     17.4.1      ORDINARY RECOVERY.  If at any time an advance made by a
     Servicer hereunder is determined by the Servicer to be a Non-Recoverable
     Advance, then the Servicer shall be entitled to be reimbursed for such
     advance by withdrawing from the Custodial P&I Account an amount equal to
     the Non-Recoverable Advance.

     17.4.2      FINAL RECOVERY.  If the amounts on deposit in the related
     Custodial P&I Account are insufficient to reimburse the Servicer, then
     prior to any distribution to the Owner of the related Mortgage Loan, the
     Servicer shall be entitled to reimbursement from the payments made and the
     proceeds received with respect to such Mortgage Loan.

     17.4.3      NON-RECOVERABLE ADVANCE DETERMINATION.  To determine whether an
     Advance is a Non-Recoverable Advance, the Servicer shall employ a broker's
     price opinion, which is no more than twelve months old when so employed, of
     the fair market value of the Mortgaged Property related to the Mortgage
     Loan which is subject to such Advance, and calculate the difference between
     (a) the fair market value of such Mortgaged Property and (b) the sum of (i)
     a reasonable estimate of foreclosure costs which may be incurred in the
     foreclosure of such Mortgaged Property, and (ii) the amount of unreimbursed
     Advances made by the Servicer with respect to the related Mortgage Loan
     pursuant to the terms of this Agreement, is greater than zero.  If such a
     difference is greater than zero, then such difference represents the
     maximum amount of additional Advances which the Servicer shall make before
     determining that any additional Advances in excess of such amount are Non-
     Recoverable Advances.  If such difference is negative, then the magnitude
     of such difference is the amount of previously made unreimbursed Advances
     which the Servicer may now regard as Non-Recoverable Advances.  The
     Servicer shall provide the Master Servicer with an Officer's certificate
     upon the determination that any Advance is a Non-Recoverable Advance.

Section 17.5   FAILURE TO ADVANCE

     17.5.1      GROUNDS FOR TERMINATION.  The failure of the Servicer to
     advance any funds required to be advanced by the Servicer under this
     Article 17 is cause for termination of Servicer under this Agreement.

     17.5.2      SERVICER REIMBURSEMENT.  To the extent the Master Servicer or
     the respective trustee, if any, must advance their respective funds due to
     the failure of the Servicer to advance as provided for in this Agreement or
     to remit funds to the Master Servicer Custodial Account as required by
     Section 18.3.1, the Servicer shall reimburse the advancing party for such
     amounts, on demand, together with all costs and expenses incurred by the
     advancing party, including, but not limited to, interest on the funds
     advanced.  Such interest will be calculated at the lesser of the "prime
     rate" publicly

                                      -105-
<PAGE>

     announced in effect from time to time at the Reference Bank plus one
     percentage point and the maximum interest rate permitted by law.

Section 17.6   REHABILITATION ADVANCE

     17.6.1      REHABILITATION ADVANCE REQUIREMENT.  The Servicer must advance
     from its own funds such amounts as are necessary to restore any damaged REO
     not covered by Hazard Insurance or Special Hazard Insurance in accordance
     with Section 14.5.

     17.6.2      REHABILITATION ADVANCE LIMITATION.  The Servicer is required to
     make advances pursuant to Sections 17.6.1 and 14.5 with respect to a
     Mortgage Loan unless the Servicer reasonably determines (i) that such
     rehabilitation will not increase the proceeds to the Owner thereof or the
     beneficial owners thereof on liquidation of such Mortgage Loan after
     reimbursement of the Servicer for its expenses or (ii) that such expenses
     will be eventually non-recoverable from any Insurance Proceeds, Liquidation
     Proceeds or the Borrower.

     17.6.3      REHABILITATION ADVANCE RECOVERY.  The Servicer's advances for
     reasonable rehabilitation expenses will be recoverable from Insurance
     Proceeds, Liquidation Proceeds, or, if the Representing Party is obligated
     to purchase a Mortgage Loan from its Owner, from the price paid for such
     Mortgage Loan.

















                                      -106-
<PAGE>

                                   ARTICLE 18

                            REPORTING REQUIREMENTS


Section 18.1   MONTHLY ACCOUNTING REPORTS

     18.1.1  MONTHLY ACCOUNTING REPORT REQUIREMENT.  With respect to any
     Remittance Date, the period for monthly accounting reports shall be from
     the first Business Day of the prior month through the last Business Day of
     the prior month, provided that (I) the reporting period for Prepayments in
     Full, Curtailments and Partial Liquidation Proceeds shall be from the
     Determination Date in the month of such Remittance Date, and (ii) such
     report shall include only (a) Monthly Payments received by the Servicer by
     the close of business on the Business Day preceding the Determination




                                      -107-
<PAGE>

     Date in the month of such Remittance Date which relate to the Due Date in
     such month, or in prior months to the extent not previously remitted and
     reported, and (b) any P&I Advances made in respect of such Monthly
     Payments.  All monthly reports prepared by the Servicer must be complete
     and must be received by the Master Servicer by the eighteenth calendar day
     of the following month.  All monthly accounting reports must show
     information in, and must be submitted in, a sequence according to Servicer
     Loan Number order.

     18.1.2      MONTHLY ACCOUNTING REPORT ELEMENTS.  The Servicer shall forward
     to the Master Servicer a Monthly Accounting Report setting forth
     substantially the information required by FNMA Form 2010.

     The Servicer must also complete and forward to the Master Servicer any
     other form or report as provided for in this Agreement, or as reasonably
     requested by the Master Servicer.

     18.1.3      AUTOMATED REPORTS.  The Servicer may submit to the Master
     Servicer for review the Servicer's automated reports which include all of
     the information required by the provisions of Section 18.1.2 hereof.  Upon
     approval by the Master Servicer, the Servicer may submit approved automated
     reports to the Master Servicer instead of the Forms listed in Section
     18.1.2 hereof.

     18.1.4      ELECTRONIC REPORTING.  With the prior written consent of the
     Master Servicer, all reports to be made by the Servicer to the Master
     Servicer may be transmitted electronically in lieu of written reporting.
     If the Servicer services more than one hundred Mortgage Loans for the
     Master Servicer, it shall arrange for electronic transmission of the
     required reports.  Any expenses occasioned by the electronic transmission
     of reports shall be borne by the Servicer.

     18.1.5      MACHINE READABLE RECORDS.  At the request of the Master
     Servicer, the Servicer will provide to the Master Servicer, in a mutually
     agreed machine readable format, the current names and mailing addresses of
     each Borrower.  The Master Servicer will utilize such information solely
     for audit purposes, or in the event the Servicer is terminated hereunder.

Section 18.2   ACCOUNT RECONCILIATIONS

     18.2.1      RECONCILIATION PREPARATION.  The Servicer shall prepare
     reconciliations for each Custodial P&I Account, Custodial T&I Account and
     Custodial Buydown Account on a monthly basis and shall forward the same to
     the Master Servicer upon request.

     18.2.2      ACCOUNT RECORDS.  Upon request of the Master Servicer, the
     Servicer shall also cause the depository for each of the accounts described
     in Section 18.2.1 hereof to forward directly to the Master Servicer, copies
     of all monthly account statements for the preceding monthly reporting
     period.


                                      -108-
<PAGE>

Section 18.3   MONTHLY REMITTANCE REQUIREMENTS

     18.3.1  REMITTANCE OF FUNDS.  On each Remittance Date with respect to each
     distinct Owner of Mortgage Loans, the Servicer shall transfer, to the
     extent not previously transferred as required pursuant to Section 6.1.3(e),
     from the funds in (or required hereunder to be in) the respective Custodial
     P&I Account as of the close of the Business Day immediately preceding the
     Determination Date in the month of such Remittance Date to the related
     Master Servicer Custodial Account, the following (other than any Amounts
     Held for Future Distribution in respect of such Remittance Date not
     exceeding the Threshold Amount and any amounts permitted to be retained by
     the Servicer or withdrawn from such account by the Servicer pursuant to the
     terms of this Agreement):

               (i)  all payments on account of principal, including prepayments
                    of principal (whether full or partial) and interest (other
                    than payments of interest related to any Prepayment in Full
                    received by the Servicer prior to the Determination Date in
                    the month in which such prepayment occurs), and all net REO
                    Disposition proceeds;

               (ii) all net Liquidation Proceeds, all net Partial Liquidation
                    Proceeds and Insurance Proceeds, other than any portion of
                    Insurance Proceeds to be applied to the restoration or
                    repair of the related Mortgaged Property or released to the
                    Borrower in accordance with the requirements of law or
                    Prudent Servicing Practices;

               (iii)all P&I Advances made by the Servicer;

               (iv) the Purchase Price, or portion thereof, paid for any
                    Mortgage Loans or property acquired in respect thereof
                    repurchased or substituted by the Servicer or a Representing
                    Party; and


               (v)  all other amounts required to be deposited in the Custodial
                    P&I Account or the Master Servicer Custodial Account
                    pursuant to this Agreement.

     Notwithstanding Section 18.3.1, the Servicer shall be entitled to withhold
     and to pay to itself the applicable Servicing Fee (as adjusted pursuant to
     Section 7.6.1) from any payment on account of interest or other recovery
     (including Net REO Proceeds) as received and prior to deposit of such
     payments in the Master Servicer Custodial Account; PROVIDED FURTHER that
     with respect to any payment of interest received by the 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 that bears the same relationship to the
     total amount of such payment of interest as the per annum rate used to
     calculate the Servicing Fee, as set forth in

                                      -109-
<PAGE>

     Section 4.8, bears to the Mortgage Interest Rate borne by such Mortgage
     Loan shall be allocated to the Servicing Fee with respect to such Mortgage
     Loan.

     18.3.2      SERVICER COMPENSATION.  The Servicer shall withdraw its
     Servicing Fee for each Mortgage Loan net of any Month End Interest payable
     pursuant to Section 7.6.1 from the related Custodial P&I Account prior to
     the remittance of such amounts to the Master Servicer Custodial Account
     with all other payments received with respect to the Mortgage Loans.



                                      -110-
<PAGE>

                                   ARTICLE 19

                    TRANSFERS AND TERMINATION OF SERVICING


Section 19.1   TRANSFER OF SERVICING

     19.1.1      TRANSFER PROHIBITION.  The Servicer may not sell or transfer
     its portfolio serviced hereunder without the prior written consent of the
     Master Servicer, which consent cannot be unreasonably withheld.  Further,
     the Servicer may not subcontract any of its servicing duties, except as set
     forth in Section 11.2.1.

     19.1.2      TRANSFER REQUEST.  Any request for sale or transfer of
     servicing will be reviewed on an individual basis.  For a request to be
     considered, however, the transferor must submit a written request to the
     Master Servicer.  The transferee must agree to enter into a servicing
     agreement with the Master Servicer substantially in the form of this
     Agreement and must be approved by the Master Servicer, and, if applicable,
     any rating agency with respect Mortgage Loans which are owned by a trust
     which has issued mortgage-backed securities, securitized by such Mortgage
     Loans, which have been rated at the request of such trust by such rating
     agency.  The Master Servicer must receive this documentation at least 45
     days prior to the requested date of transfer.  The transferor will be
     notified in writing of the Master Servicer's approval or denial.  Such
     transfer will be denied if the transferee does not meet the approval
     requirements of the Master Servicer, or any such rating agency.

     19.1.3      SERVICER LIABILITY.  The transferor of servicing shall be
     liable to the Master Servicer, and the Owner of the related Mortgage Loans
     for any servicing obligation violations that occur before, during, and up
     to and including the day the portfolio is actually transferred.  The
     transferee of servicing shall be liable for any breach of servicing
     obligations that occurs after the transfer of the servicing portfolio.



     19.1.4      MASTER SERVICER'S DETERMINATION.  If the transferor and
     transferee disagree about liability for violations of representations and
     warranties and servicing requirements hereunder, the Master Servicer has
     the right, in its reasonable discretion, to determine which party or
     parties are liable for such violations.

Section 19.2   TERMINATION OF SERVICING

     19.2.1      GROUNDS FOR TERMINATION.  The Owners of the related Mortgage
     Loans, will have the right to terminate for cause the servicing privileges
     of the Servicer under this Agreement, either with respect to certain
     Mortgage Loans serviced hereunder or with respect to all Mortgage Loans
     serviced hereunder in the event that (i) any of the following occur, (ii)
     the related Owner or the Master Servicer on its behalf has given the
     Servicer prior written notice of the occurrence of such event and (iii)
     with respect to clauses (a), (b) or (f) hereof, the Servicer has failed to
     cure such event within a reasonable time, which shall in all cases be no
     less than ninety (90) days:

                                      -111-
<PAGE>

               (a)  the Servicer has breached any material obligation set forth
                    or incorporated by reference in this Agreement or any Sales
                    Agreement, including, without limitation, the Servicer's
                    failure to maintain the requisite Fidelity Bond and Errors
                    and Omissions Policy in the amounts specified herein;

               (b)  the Servicer has made one or more false or misleading
                    representations or warranties in this Agreement or any Sales
                    Agreement, or in any documents relating to the foregoing
                    agreements;

               (c)  the appointment of a trustee or receiver for the Servicer or
                    any of its property;

               (d)  the execution by the Servicer of an assignment for the
                    benefit of its creditors;

               (e)  any material change in the financial status of the Servicer
                    that, in the opinion of the Master Servicer, could
                    materially adversely affect the Owner of the related
                    Mortgage Loans, the Master Servicer or the Servicer's
                    ability to service the Mortgage Loans;

               (f)  the Servicer's placement on probation or suspension by a
                    federal or state government agency, including, without
                    limitation, FHLMC, FNMA or GNMA;

               (g)  the Servicer's assignment or attempted assignment of any of
                    its interests, rights, or obligations set forth herein
                    without the Master Servicer's prior written consent; or

               (h)  the Servicer has been terminated for cause pursuant to the
                    terms of another servicing agreement with the Principal.

     19.2.2      OWNER NOTIFICATION.  The Master Servicer shall notify the
     Owners of the related Mortgage Loans of the occurrence of any of the events
     set forth in Section 19.2.1, together with the Master Servicer's
     recommended course of action regarding the termination of the Servicer.

     19.2.3      SERVICER TERMINATION.  Following the occurrence of any of the
     events set forth in Section 19.2.1, each Owner of the related Mortgage
     Loans may elect, at its reasonable discretion, to terminate the Servicer
     under this Agreement with respect to the Mortgage Loans owned by such Owner
     as shown on Schedule II hereof.  Each such Owner shall provide a written
     termination notice to the Servicer.

     19.2.4      CONSEQUENCES OF TERMINATION.  If this Agreement with the
     Servicer is terminated pursuant to Section 19.2.3 hereof, the Servicer will
     deliver all Servicer

                                      -112-
<PAGE>

     Mortgage Loan Files, in their entirety, for those Mortgage Loans serviced
     under this Agreement, as well as any other documents or reports held by the
     Servicer concerning such Mortgage Loans, to the transferee designated by
     the Master Servicer, which may be the Master Servicer, and will assist in
     the efficient and timely transfer of the servicing to such transferee.  The
     Servicer shall not be entitled to compensation for servicing following its
     termination.

     19.2.5      EFFECT OF TERMINATION.  In the event of the termination of this
     Agreement, the Servicer is not released from its obligations under this
     Agreement.  If its servicing is terminated for cause, the Servicer must pay
     the expenses of the Master Servicer incurred in connection with transfer of
     the servicing and any actual and direct damages, including, without
     limitation, actual and direct damages or losses, of the Owner of the
     related Mortgage Loans, or the Master Servicer resulting from such
     termination.

     19.2.6      CUSTODIAL ACCOUNT THRESHOLD REDUCTION.  In the event that any
     of the events specified in clauses (a) through (h) of Section 19.2.1 or in
     clauses (g), (h) or (i) of Section 4.2.5 occur, the Master Servicer, in its
     reasonable discretion, may notify the Servicer in writing that the
     applicable Threshold Amount has been reduced to such amount not less than
     $1,000 as shall be specified in such notice.










                                      -113-
<PAGE>

                                   ARTICLE 20

                           MISCELLANEOUS PROVISIONS


Section 20.1   AMENDMENTS

     20.1.1      UNILATERAL AUTHORITY.  The Servicer acknowledges that the
     Master Servicer, acting on behalf of the Principal and its successors and
     assigns, may, upon written notice, supplement or amend the provisions of
     this Agreement from time to time, without the need to obtain the Servicer's
     consent to (a) correct ambiguous or erroneous provisions in this Agreement;
     (b) make changes necessary or helpful to maintain compliance with
     applicable law; (c) conform to evolving industry standards regarding the
     servicing of residential mortgage loans generally; or (d) make such other
     modifications or amendments thereto, which the Master Servicer deems
     advisable, provided that no such modification or amendment shall have a
     material adverse impact so as to materially increase the obligations of, or
     to materially decrease the benefits to, the Servicer.

     20.1.2      CONSENSUAL AMENDMENT.  Except as provided for in Section 20.1.1
     hereof, the Master Servicer, acting on behalf of the Principal and its
     successors and assigns, must obtain the written consent of the Servicer to
     any amendment hereto that would either increase materially the obligations
     of the Servicer or decrease materially the benefits to the Servicer.

     20.1.3      OWNER NOTIFICATION.  The Owners of the related Mortgage Loans
     shall be provided with notice of the substance of any amendments or
     modifications made to this Servicing Agreement pursuant to the provisions
     of this Section 20.1.

     20.1.4      OWNER DISAPPROVAL.  With regard to any proposed modification or
     amendment to this Agreement which shall have a material adverse impact upon
     the beneficial rights enjoyed hereunder by an Owner of the related Mortgage
     Loans, each such Owner shall receive written notice of the substance of any
     proposed amendments or modifications at least ten business days prior to
     the proposed date of enactment of such amendment or modification which
     shall also state therein the proposed date of enactment.  If a majority
     vote of the Owners so materially adversely affected, with the vote of each
     such Owner weighted in proportion to the aggregate of the Unpaid Principal
     Balance of Mortgage Loans serviced hereunder for such Owner, notify the
     Master Servicer in writing, prior to the proposed date of enactment, of
     their opposition to the adoption of such an amendment or modifications, the
     Master Servicer shall not proceed with such modification or amendment.

Section 20.2   GENERAL CONSTRUCTION

     20.2.1      BINDING NATURE.  This Agreement shall be binding upon and inure
     to the benefit of the parties hereto and their respective successors and
     permitted assigns.

                                      -114-
<PAGE>

     20.2.2      ENTIRE AGREEMENT.  This Agreement contains the entire agreement
     and understanding between the parties hereto with respect to the subject
     matter hereof and supersedes all prior and contemporaneous servicing
     agreements, understandings, inducements and conditions, expressed or
     implied, oral or written, of any nature whatsoever with respect to the
     subject matter thereof.  The express terms hereof control and supersede any
     course of performance and/or usage of the trade inconsistent with any of
     the terms hereof.

     20.2.3      GOVERNING LAW.  This Agreement and all questions relating to
     its validity, interpretation, performance and enforcement shall be governed
     by, construed, interpreted and enforced in accordance with the laws of the
     State of New York, notwithstanding any New York or other choice-of-law
     rules to the contrary.

     20.2.4      INDULGENCES NOT WAIVERS.  Neither the failure nor any delay on
     the part of a party to exercise any right, remedy, power or privilege under
     this Agreement shall operate as a waiver thereof, nor shall any single or
     partial exercise of any right, remedy, power or privilege preclude any
     other or further exercise of the same or of any other right, remedy, power
     or privilege, nor shall any waiver of any right, remedy, power or
     privilege, with respect to any occurrence be construed as a waiver of such
     right, remedy, power or privilege with respect to any other occurrence.  No
     waiver shall be effective unless it is in writing and is signed by the
     party asserted to have granted such waiver.

     20.2.5      TITLES NOT TO AFFECT INTERPRETATION.  The titles of the
     articles and sections contained in this Agreement are for convenience only,
     and they neither form a part of this Agreement nor are they to be used in
     the construction or interpretation hereof.

     20.2.6      PROVISIONS SEVERABLE.  The provisions of this Agreement are
     independent of and severable from each other, and no provision shall be
     affected or rendered invalid or unenforceable by virtue of the fact that
     for any reason any other or others of them may be invalid or unenforceable
     in whole or in part.

     20.2.7      SERVICER AN INDEPENDENT CONTRACTOR.  All services, duties and
     responsibilities of the Servicer under this Agreement shall be performed
     and carried out by the Servicer as an independent contractor, and none of
     the provisions of this Agreement shall be deemed to make, authorize or
     appoint the Servicer as agent or representative of any Owner of any
     Mortgage Loans, of the Principal, or of the Master Servicer.

     20.2.8      THIRD PARTY BENEFICIARY.  The parties agree that the Master
     Servicer and any Owner are intended third party beneficiaries of the
     representations, warranties, covenants and agreements of the Servicer set
     forth in this Agreement.  The Master Servicer shall have full authorization
     to enforce directly against the Servicer any of the obligations of the
     Servicer provided for herein.



                                      -115-
<PAGE>

     20.2.9      COUNTERPARTS.  This Agreement may be executed in counterparts,
     each of which shall be deemed an original, and such counterparts shall
     constitute one and the same instrument.










                                      -116-
<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their duly authorized representatives as of the date set forth
above.

                              NORWEST MORTGAGE, INC.

                              as Servicer



                              By:  ____________________________________________
                              Name:
                              Title:  Vice President


                              NORWEST BANK MINNESOTA;
                                 NATIONAL ASSOCIATION

                              as Principal



                              By:  ____________________________________________
                              Name:
                              Title:  Vice President














                                      -117-
<PAGE>
                            SCHEDULE I

                      MORTGAGE LOAN SCHEDULE


                                     CUT-OFF DATE
                    CUT-OFF DATE       REGARDING
                       UNPAID      INITIAL COVERAGE
MASTER SERVICER      PRINCIPAL         UNDER THIS      SERVICING FEE
  LOAN NUMBER         BALANCE         AGREEMENT         PERCENTAGE
- ---------------    ------------    ----------------    --------------



<PAGE>

                           SCHEDULE II

              LIST OF OWNERS OF THE MORTGAGE LOANS


                                                     CUT-OFF
                                                     DATE RELATING
MASTER SERVICERS            OWNER'S                  TO OWNER'S
LOAN NUMBER                 OWNER ADDRESS            ACQUISITION
- ----------------            -------------            --------------

<PAGE>

                            EXHIBIT A

             NOTIFICATION OF SALE OF MORTGAGE LOANS
            RE:  NORWEST MORTGAGE LOAN POOL 199  - W

     For the purpose of the registration of the transfer of ownership of the
mortgage loans set forth below (the "Mortgage Loans") pursuant to Section 2.4.2
of the Servicing Agreement, dated March 1, 1996, between Norwest Bank Minnesota
National Association and Norwest Mortgage, Inc. (the "Servicing Agreement"), the
Current Owner,                            , hereby notifies the Master Servicer
of its sale of the Mortgage Loans to the indicated New Owner. The right to
register a transfer of ownership of the Mortgage Loans under Section 2.4.1 of
the Servicing Agreement is subject at any time to certain numerical limits
regarding the number of simultaneous Owners of Mortgage Loans for a given
mortgage loan pool.  Please contact, [Bond Administration], Norwest Bank
Minnesota National Association at [NUMBER] or by facsimile at [NUMBER] regarding
the status of such numerical limits with respect to any particular mortgage loan
pool.  If the transfer of ownership of the Mortgage Loans is registered, the
Master Servicer will effect payments to the New Owner following the related Cut-
Off Date.  The New Owner agrees to provide the same notification to the Master
Servicer for subsequent sales of the Mortgage Loans.

     Attached hereto are incumbency certificates of the Current Owner and the
New Owner which indicate the signatory authority of the parties executing this
notification.

     This notification, dated this ____ day of ______ , ______ , has been agreed
to by the following parties.



________________________           ________________________
Current Owner                      New Owner


By:_____________________           By:_____________________
Name:                              Name:
Title:                             Title:


                                        CUT-OFF
                            NEW         DATE RELATING
MASTER SERVICER    NEW      OWNER'S     TO NEW OWNER'S
LOAN NUMBER        OWNER    ADDRESS     ACQUISITION
- ---------------    -----    --------    --------------




<PAGE>
                    COOPERS & LYBRAND LETTERHEAD


                 CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the incorporation by reference in Pre-Effective Amendment No. 1
to Form S-3 of Norwest Asset Securities Corporation of our report dated
January 17, 1996 on our audits of the consolidated financial statements of 
Financial Security Assurance Inc. and Subsidiaries as of December 31, 1995 
and 1994 and for each of the three years in the period ended December 31, 
1995. We also consent to the reference to our Firm under the caption "Experts".



                                          
                                             /s/ COOPERS & LYBRAND L.L.P.


New York, New York
May 13, 1996




© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission