CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP
S-3/A, 2000-08-08
ASSET-BACKED SECURITIES
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As filed with the Securities and Exchange Commission on August 8,    2000
                                                  Registration No. 333-37616


======================================================================
                 SECURITIES AND EXCHANGE COMMISSION


                             Washington, D.C. 20549

                               ------------------
                                 Amendment No. 3

                                       to

                                    FORM S-3


                             REGISTRATION STATEMENT

                                      under

                           THE SECURITIES ACT OF 1933

                               ------------------

              CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.
             (Exact name of registrant as specified in its charter)
                                    DELAWARE
         (State or other jurisdiction of incorporation or organization)
                                   13-3320910
                   (I.R.S. employer identification number)
              Credit Suisse First Boston Mortgage Securities Corp.
                                11 Madison Avenue
                            New York, New York 10010
                                 (212) 325-2000
   (Address, including zip code, and telephone number, including area code, of
                    registrant's principle executive offices)

                                 Thomas Zingalli
                           Credit Suisse First Boston
                            Mortgage Securities Corp.
                                11 Madison Avenue
                            New York, New York 10010
                                 (212) 325-2000

 (Name, address, including zip code, and telephone number, including area code,
                              of agent for service)

                                   Copies to:

                            Katharine I. Crost, Esq.
                         Orrick, Herrington & Sutcliffe
                                       LLP
                                666 Fifth Avenue
                            New York, New York 10103

     Approximate date of commencement of proposed sale to the public:  From time
to time after this  Registration  Statement  becomes  effective as determined by
market conditions.

     If the only  securities  being  registered  on this Form are to be  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, other than securities offered only in connection with dividend or interest
reinvestment plans, 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,  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. |_|
<TABLE>

                         CALCULATION OF REGISTRATION FEE

===================================================================================
 Title of Securities   Amount to be      Proposed        Proposed      Amount of
 to be Registered(1)   Registered(2)     Maximum          Maximum     Registration
                                     Aggregate Price     Aggregate        Fee
                                         Per Unit     Offering Price
-----------------------------------------------------------------------------------
<S>                      <C>               <C>            <C>             <C>

 Conduit Mortgage and
 Manufactured Housing  $1,500,000,000      100%       $1,500,000,000(3)$ 396,000 (4)
Contract Pass-Through
Certificates


===================================================================================
</TABLE>

(1)This   Registration   Statement   also  relates  to  certain   market  making
   transactions that may be made by Credit Suisse First Boston  Corporation,  an
   affiliate of the Registrant.


(2)$3,518,133,600   aggregate   principal   amount  of  Conduit   Mortgage   and
   Manufactured  Housing Contract  Pass-Through  Certificates  registered by the
   Registrant under Registration Statement No. 333-53115 on Form S-3 referred to
   below  and not  previously  sold  are  consolidated  into  this  Registration
   Statement  pursuant to Rule 429. A registration  fee in connection  with such
   unsold  amount  of  Conduit  Mortgage  and   Manufactured   Housing  Contract
   Pass-Through   Certificates   was  paid   previously   under  the   foregoing
   Registration Statement.  Accordingly,  the total amount registered under this
   Registration  Statement as so  consolidated  as of the date of this filing is
   $5,018,133,600.

(3)  Estimated solely for the purpose of calculating the registration fee.

(4)  Fee of $264 paid in connection with original  Registration  Statement filed
     on May 23, 2000. Fee of $395,736 paid in connection with Amendment No. 2 to
     Registration  Statement  filed on August 7, 2000.


                               -------------------
      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  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the Securities Act of 1933, or until this  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.


     Pursuant  to Rule  429 of the  General  Rules  and  Regulations  under  the
Securities  Act of  1933,  the  prospectus  that is  part  of this  Registration
Statement is a combined  prospectus and includes all the  information  currently
required in a  prospectus  relating to the  securities  covered by  Registration
Statement No.  333-53115 on Form S-3 previously  filed by the  Registrant.  This
Registration  Statement,  which relates to  $5,018,133,600  aggregate  principal
amount of  Conduit  Mortgage  and  Manufactured  Housing  Contract  Pass-Through
Certificates,   constitutes  Post-Effective  Amendment  No.  2  to  Registration
Statement No. 333-53115 on Form S-3.



<PAGE>


                                Explanatory Note


      This Registration  Statement includes (i) the basic prospectus relating to
Conduit Mortgage and Manufactured  Housing Contract  Pass-Through  Certificates,
(ii) an  illustrative  form of prospectus  supplement  for use in an offering of
Mortgage Backed  Pass-Through  Certificates  representing  beneficial  ownership
interests in a trust fund  consisting  primarily  of mortgage  loans with credit
enhancement  provided by  subordinate  certificates  ("Version  A") and (iii) an
illustrative  form of prospectus  supplement  for use in an offering of Mortgage
Backed Pass-Through  Certificates representing beneficial ownership interests in
a trust fund consisting primarily of mortgage loans,  including  multifamily and
commercial mortgage loans, with credit enhancement  provided by excess interest,
overcollateralization and a financial guaranty insurance policy ("Version B").


<PAGE>

The  information  in  this  prospectus  supplement  is not  complete  and may be
changed. We may not sell these securities until the registration statement filed
with the Securities Exchange Commission is effective. This prospectus supplement
is not an offer to sell these  securities  and it is not  soliciting an offer to
buy these securities in any state where the offer or sale is not permitted.

                              SUBJECT TO COMPLETION

PRELIMINARY PROSPECTUS SUPPLEMENT DATED ________________, 200_
Prospectus supplement dated ________,_____ (to prospectus dated
_____________,____)

                                  $____________

                               [_________________]
                               SELLER AND SERVICER

                           CREDIT SUISSE FIRST BOSTON
                            MORTGAGE SECURITIES CORP.
                                    DEPOSITOR

           MORTGAGE-BACKED PASS-THROUGH CERTIFICATES, SERIES 200_-___
                                     ISSUER


THE TRUST

The trust will hold a pool of one- to  four-family  residential  first  mortgage
loans.

OFFERED CERTIFICATES

The trust will issue these classes of  certificates  that are offered under this
prospectus supplement:

     o  [_] classes of Class A Certificates

    [o  [_] classes of Class R Certificates]

     o  [_] classes of Class M Certificates

CREDIT ENHANCEMENT

Credit   enhancement  for  all  of  these   certificates  will  be  provided  by
subordinated certificates.


--------------------------------------------------------------------------------
YOU SHOULD CONSIDER CAREFULLY THE RISK FACTORS BEGINNING ON PAGE S-[_] IN THIS
PROSPECTUS SUPPLEMENT.
--------------------------------------------------------------------------------


NEITHER  THE  SECURITIES  AND  EXCHANGE  COMMISSION  NOR  ANY  STATE  SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED  THE OFFERED  CERTIFICATES  OR DETERMINED
THAT THIS PROSPECTUS  SUPPLEMENT OR THE PROSPECTUS IS ACCURATE OR COMPLETE.  ANY
REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

THE ATTORNEY GENERAL OF THE STATE OF NEW YORK HAS NOT PASSED ON OR ENDORSED THE
MERITS OF THIS OFFERING. ANY REPRESENTATION TO THE CONTRARY IS UNLAWFUL.

Credit  Suisse First  Boston  Corporation  will offer the Class A  Certificates,
Class M certificates [and Class R Certificates], subject to availability.

                              [NAME OF UNDERWRITER]

                                   UNDERWRITER

[_________], 200_                                       Version A


<PAGE>


         IMPORTANT NOTICE ABOUT INFORMATION PRESENTED IN THIS PROSPECTUS
                          SUPPLEMENT AND THE PROSPECTUS

     You should rely on the  information  contained in this document or to which
we have referred you to in this  prospectus  supplement.  We have not authorized
anyone to provide you with information that is different. This document may only
be used where it is legal to sell these securities.

     We  provide  information  to you  about  the  offered  certificates  in two
separate documents that progressively provide more detail:

     o    the prospectus, which provides general information,  some of which may
          not apply to your series of certificates; and

     o    this prospectus supplement, which describes the specific terms of your
          series of certificates.

     We  include   cross-references  in  this  prospectus   supplement  and  the
accompanying  prospectus  to  captions  in these  materials  where  you can find
further related discussions.

     You can find a listing of the pages  where  capitalized  terms used in this
prospectus  supplement are defined under the caption "Index of Terms"  beginning
on page 126 in the prospectus.

                                TABLE OF CONTENTS

                                  [INSERT HERE]


<PAGE>

                                     SUMMARY

The following  summary  highlights  selected  information  from this  prospectus
supplement. It does not contain all of the information that you should consider
in making  your  investment  decision.  To  understand  the terms of the offered
certificates,   read  carefully  this  entire  prospectus   supplement  and  the
accompanying prospectus.

--------------------------------------------------------------------------------

Title of series...........[_________________________ Mortgage-Backed
                          Pass-Through Certificates, Series 200_-___].

Depositor.................Credit Suisse First Boston Mortgage Securities Corp.

Seller and servicer.......[_________________________].

Trustee...................[_________________________].

Mortgag pool..............[_____] [fixed]  [adjustable] rate mortgage loans
                          with an aggregate  principal  balance of approximately
                          $[________]  as of the cut-off date,  secured by first
                          liens on one- to four-family residential properties.

Cut-off date..............[__________ 1, 200_].

Closing date..............On or about [_________, 200_].

Distribution date.........Beginning on [__________,  200_], and thereafter
                          on the [ ] day of each month, or if the [ ] day is not
                          a business day, on the next business day.

Scheduled final
 distribution date........[__________, 20__]. The actual
                          final   distribution   date  could  be   substantially
                          earlier.

Form of offered
 certificates............ Book-entry: Class A Certificates and Class M
                          Certificates.
                          Physical: Class R Certificates.
                          SEE   "DESCRIPTION  OF  THE   CERTIFICATES--BOOK-ENTRY
                          REGISTRATION" IN THIS PROSPECTUS SUPPLEMENT.

Minimum denominations.....[Class A Certificates and Class M Certificates]:
                          $25,000. Class R-1 and Class R-2 Certificates: [    ]%
                          percentage interests.



                                      S-3
<PAGE>


--------------------------------------------------------------------------------
                              OFFERED CERTIFICATES
--------------------------------------------------------------------------------
<TABLE>
                                   INITIAL
                     INITIAL       PASS-            INITIAL
                     PRINCIPAL     THROUGH          RATING
     CLASS           BALANCE       RATE             (____/____)    DESIGNATION
--------------------------------------------------------------------------------
<S>   <C>         <C>           <C>        <C>           <C>

CLASS A CERTIFICATES:
--------------------------------------------------------------------------------
                     $                %             Aaa/AAA        Senior
--------------------------------------------------------------------------------
                     $                %             Aaa/AAA        Senior
--------------------------------------------------------------------------------
Total Class A
Offered
Certificates:       $
--------------------------------------------------------------------------------

[CLASS R CERTIFICATES:
--------------------------------------------------------------------------------
      R-1           $                 %             NA/AAA     Senior/Residual
--------------------------------------------------------------------------------
      R-2           $                 %             NA/AAA     Senior/Residual
--------------------------------------------------------------------------------
Total Class R
Certificates:       $   ]
--------------------------------------------------------------------------------

CLASS M CERTIFICATES:
--------------------------------------------------------------------------------
                    $                 %            NA/AA        Mezzanine
--------------------------------------------------------------------------------
Total Class M
Certificates:       $
--------------------------------------------------------------------------------
Total offered
certificates:       $
--------------------------------------------------------------------------------
</TABLE>




                                      S-4
<PAGE>


THE TRUST

The depositor  will  establish a trust for the Series  200_-___  Mortgage-Backed
Pass-Through Certificates,  under a pooling and servicing agreement, dated as of
[_______]  1,  200_,   among  the   depositor,   the  seller  and  servicer  and
[______________],  as trustee.  On the closing date,  the depositor will deposit
the pool of mortgage loans described in this prospectus into the trust.

Each  certificate  will  represent  a partial  ownership  interest in the trust.
Distributions  on the  certificates  will be made from payments  received on the
mortgage loans as described in this prospectus.

THE MORTGAGE POOL

The mortgage  pool will consist of  approximately  [____]  [fixed]  [adjustable]
rate,  fully  amortizing  mortgage  loans  secured  by  first  liens  on  one-to
four-family  residential  properties  having an aggregate  principal  balance of
approximately $_______ as of __________ 1, 200_ .]

FOR ADDITIONAL  INFORMATION  REGARDING THE MORTGAGE POOL SEE "DESCRIPTION OF THE
MORTGAGE POOL" IN THIS PROSPECTUS SUPPLEMENT.

DISTRIBUTIONS ON THE OFFERED CERTIFICATES

AMOUNT AVAILABLE FOR MONTHLY  DISTRIBUTION.  On each monthly  distribution date,
the trustee will make  distributions  to  investors.  The amount  available  for
distribution will include:

o    collections  of  monthly   payments  on  the  mortgage   loans,   including
     prepayments and other unscheduled collections PLUS

o    advances for delinquent payments MINUS

o    the fees and  expenses  of the  subservicers  and the  servicer,  including
     reimbursement for advances.

SEE "DESCRIPTION OF THE CERTIFICATES--GLOSSARY OF TERMS--AVAILABLE  DISTRIBUTION
AMOUNT" IN THIS PROSPECTUS SUPPLEMENT.

PRIORITY OF  DISTRIBUTIONS.  Distributions on the offered  certificates  will be
made from available amounts as follows:

o    Distribution of interest to the interest-bearing  [Class A Certificates and
     Class R Certificates]

o    Distribution of principal to the remaining  [Class A Certificates and Class
     R Certificates] entitled to principal

o    Payment to servicer for various unreimbursed advances

Distribution to the Class M Certificates in the following order:

o    Interest to the Class M Certificates

o    Principal to the Class M Certificates

INTEREST  DISTRIBUTIONS.  The amount of interest  owed to each class of interest
bearing certificates on each distribution date will equal:

o    the  pass-through  rates  set  forth  on  page  S-[_]  for  that  class  of
     certificates MULTIPLIED BY

o    the  principal  balance  of  that  class  of  certificates  as of  the  day
     immediately  prior to the related  distribution date MULTIPLIED BY
/
o    1/12th MINUS

o    the share of some types of interest shortfalls allocated to that class.



                                      S-5
<PAGE>

SEE "DESCRIPTION OF THE CERTIFICATES--INTEREST DISTRIBUTIONS" IN THIS PROSPECTUS
SUPPLEMENT.

It is possible that, on any given  distribution date, there will be insufficient
payments from the mortgage loans to cover interest owed on the certificates.  As
a result, some certificates,  most likely the subordinate certificates,  may not
receive the full amount of accrued interest to which they are entitled.  If this
happens,  those  certificates  will be  entitled  to receive  any  shortfall  in
interest  distributions  in the  following  month in the same  priority as their
distribution of current interest.  However, there will be no extra interest paid
to make up for the delay.

ALLOCATIONS OF PRINCIPAL.  Principal  distributions on the certificates  will be
allocated among the various classes of offered certificates as described in this
prospectus supplement.  It is possible that on any distribution date, there will
be insufficient payments from the mortgage loans to make principal distributions
on the  certificates.  As a result,  some  certificates may not receive the full
amount of principal distributions to which they are entitled.

Until  the  distribution  date in  [__________]  200_,  all  prepayments  on the
mortgage  loans will be  distributed  to the [Class A  Certificates  and Class R
Certificates],  unless the principal  balances of those  certificates  have been
reduced to zero.

In  addition,  unscheduled  collections  of  principal  relating  to the Class M
Certificates and Class B Certificates will be paid to the most senior classes of
the  Class  M  Certificates  and  Class  B  certificates  as  described  in this
prospectus supplement.

SEE "DESCRIPTION OF THE  CERTIFICATES--PRINCIPAL  DISTRIBUTIONS" AND "--PRIORITY
OF DISTRIBUTIONS" IN THIS PROSPECTUS SUPPLEMENT.

CREDIT ENHANCEMENT

ALLOCATION  OF LOSSES.  Most losses on the  mortgage  loans will be allocated in
full to the first class listed below with a principal balance greater than zero:

o     Class B Certificates
o     Class M Certificates

When  this  occurs,  the  principal  balance  of the  class to which the loss is
allocated is reduced without a corresponding payment of principal.

If none of the Class M  Certificates  or Class B Certificates  are  outstanding,
losses on the mortgage loans will be allocated  proportionately among the senior
certificates.

SEE "DESCRIPTION OF THE  CERTIFICATES--ALLOCATION  OF LOSSES;  SUBORDINATION" IN
THIS PROSPECTUS SUPPLEMENT.

PRIORITY OF DISTRIBUTIONS

All or a  disproportionately  large portion of principal  prepayments  and other
unscheduled  payments of principal will be allocated to the senior certificates.
This provides  additional  credit  enhancement  for the senior  certificates  by
preserving  the  principal  balances  of the  Class M  certificates  and Class B
certificates for absorption of losses.

YIELD CONSIDERATIONS

The yield to maturity of each class of certificates  will depend on, among other
things:

o    the price at which the certificates are purchased;




                                      S-6
<PAGE>

o    the applicable pass-through rate; and

o    the rate of prepayments on the related mortgage loans.

FOR A  DISCUSSION  OF SPECIAL  YIELD  CONSIDERATIONS  APPLICABLE  TO THE OFFERED
CERTIFICATES,   SEE  "RISK   FACTORS"   AND   "SPECIAL   YIELD  AND   PREPAYMENT
CONSIDERATIONS" IN THIS PROSPECTUS SUPPLEMENT.

ADVANCES

For any month, if the servicer does not receive the full scheduled  payment on a
mortgage  loan,  the  servicer  will  advance  funds to cover the  amount of the
scheduled  payment that was not made.  However,  the servicer will advance funds
only if it determines that the advance will be recoverable  from future payments
or collections on that mortgage loan.

SEE "DESCRIPTION OF THE CERTIFICATES--ADVANCES" IN THIS PROSPECTUS SUPPLEMENT.

OPTIONAL TERMINATION

On any distribution  date on which the principal  balances of the mortgage loans
is less  than  10% of their  principal  balances  as of the  cut-off  date,  the
servicer will have the option to purchase from the trust all remaining  mortgage
loans, causing an early retirement of the certificates.

Early  retirement  of the  certificates  may  cause the  holders  of one or more
classes of certificates to receive less than their outstanding principal balance
plus the accrued interest.

SEE "THE POOLING AND SERVICING AGREEMENT--TERMINATION; RETIREMENT OF
CERTIFICATES" IN THE PROSPECTUS.

TAX STATUS

For federal income tax purposes,  the depositor will elect to treat the trust as
[two] real estate mortgage investment conduits. The certificates, other than the
Class R Certificates, will represent ownership of regular interests in the trust
and will be treated as  representing  ownership  of debt for federal  income tax
purposes.  You will be required to include as income all  interest  and original
issue  discount,  if any, on the  certificates  in  accordance  with the accrual
method of accounting regardless of your usual methods of accounting. For federal
income tax purposes,  each of the Class R Certificates will be the sole residual
interest in one of the two real estate mortgage investment conduits.

FOR  FURTHER  INFORMATION  REGARDING  THE  FEDERAL  INCOME TAX  CONSEQUENCES  OF
INVESTING IN THE OFFERED CERTIFICATES,  SEE "FEDERAL INCOME TAX CONSEQUENCES" IN
THIS PROSPECTUS SUPPLEMENT AND IN THE PROSPECTUS.

ERISA CONSIDERATIONS

The [Class A  Certificates]  may be considered  eligible for purchase by persons
investing  assets of employee benefit plans or individual  retirement  accounts.
Sales of the  Class M  Certificates  to these  plans  or  individual  retirement
accounts may be prohibited. Sales of the Class R Certificates to these plans and
retirement  accounts are prohibited.  Persons investing assets of those plans or
accounts should consult with their counsel before purchasing the notes.

SEE "ERISA CONSIDERATIONS" IN THIS PROSPECTUS SUPPLEMENT AND IN THE PROSPECTUS.

LEGAL INVESTMENT

When issued,  the [Class A Certificates and Class R Certificates]  will, and the
[Class M


                                      S-7
<PAGE>



Certificates]  will not, be "mortgage  related  securities"  for purposes of the
Secondary  Mortgage Market  Enhancement Act of 1984 or SMMEA. You should consult
your legal  advisors  in  determining  whether  and to what  extent the  offered
certificates constitute legal investments for you.

SEE "LEGAL INVESTMENT" IN THIS PROSPECTUS SUPPLEMENT FOR IMPORTANT INFORMATION
CONCERNING  POSSIBLE  RESTRICTIONS  ON OWNERSHIP OF THE OFFERED  CERTIFICATES BY
REGULATED INSTITUTIONS.

RATINGS

When issued,  the offered  certificates will receive ratings which are not lower
than those listed in the table on page S-[__] of this prospectus supplement. The
ratings on the offered  certificates  address the likelihood that the holders of
the offered  certificates  will  receive  all  distributions  on the  underlying
mortgage  loans  to  which  they  are  entitled.  A  security  rating  is  not a
recommendation  to buy,  sell or hold a security and may be changed or withdrawn
at any time by the assigning rating agency.  The ratings also do not address the
rate of principal  prepayments on the mortgage loans.  For example,  the rate of
prepayments,  if different than originally  anticipated,  could adversely affect
the yield realized by holders of the offered certificates.

SEE "RATINGS" IN THIS PROSPECTUS SUPPLEMENT.



                                      S-8
<PAGE>


                                  RISK FACTORS

     The offered certificates are not suitable investments for all investors. In
particular, you should not purchase any class of offered certificates unless you
understand the prepayment,  credit,  liquidity and market risks  associated with
that class.

     The offered certificates are complex securities. You should possess, either
alone or  together  with an  investment  advisor,  the  expertise  necessary  to
evaluate  the  information  contained  in  this  prospectus  supplement  and the
prospectus in the context of your financial situation and tolerance for risk.

     You should carefully consider, among other things, the following factors in
connection with the purchase of the offered certificates:

RISK OF LOSS

THE  UNDERWRITING  STANDARDS FOR THE MORTGAGE LOANS CREATE GREATER RISKS TO YOU.
[____]%  of  the  mortgage  loans  included  in  the  mortgage  loan  pool  were
underwritten  using  standards  that  are  standards  less  stringent  than  the
underwriting standards applied for the by other mortgage loan purchase programs,
such as mortgage Fannie Mae or Freddie Mac. Applying less stringent underwriting
standards  creates  additional  risks that greater  losses on the mortgage loans
will be allocated to certificateholders.

          Examples include:

          o    mortgage loans with original  principal  balances of greater than
               $1,000,000;

          o    mortgage loans secured by non-owner occupied properties;

          o    mortgage  loans made to  borrowers  who have high  debt-to-income
               ratios (i.e., a large portion of the borrower's income is used to
               make payments on other debt); and

          o    mortgage loans made to borrowers whose income was not required to
               be disclosed or verified.

          SEE  "DESCRIPTION  OF THE MORTGAGE  POOL--UNDERWRITING  STANDARDS" AND
          "CERTAIN  LEGAL  ASPECTS  OF  MORTGAGE  LOANS  AND  CONTRACTS"  IN THE
          PROSPECTUS.





                                      S-9
<PAGE>


THE RETURN ON YOUR CERTIFICATES MAY BE PARTICULARLY SENSITIVE TO CHANGES IN REAL
ESTATE  MARKETS IN SPECIFIC  AREAS.  One risk of  investing  in  mortgage-backed
securities is created by any  concentration of the related  properties in one or
more  geographic  regions.  Approximately  [ ]% of the  cut-off  date  principal
balance of the  mortgage  loans are located in the State of  [___________].  [No
more than [____]% of the cut-off date  principal  balance of the mortgage  loans
are  located  in any  one zip  code in the  State  of  [____________  ].] If the
regional economy or housing market in the state of [___________]  weakens, or in
any other region having a significant concentration of properties underlying the
mortgage  loans,  the mortgage loans in that region may experience high rates of
loss and  delinquency,  resulting  in losses to  certificateholders.  A region's
economic  condition and housing market may be adversely affected by a variety of
events,   including  a  downturn  in  various  industries  or  other  businesses
concentrated in the region,  natural  disasters such as earthquakes,  hurricanes
and floods, and civil disturbances including riots. The depositor cannot predict
whether, or to what extent or for how long, these events may occur.

          SEE  "DESCRIPTION  OF THE MORTGAGE  POOL--GENERAL"  IN THIS PROSPECTUS
          SUPPLEMENT.



THE RETURN ON YOUR  CERTIFICATES  WILL BE  REDUCED  IF LOSSES  EXCEED THE CREDIT
ENHANCEMENT AVAILABLE TO YOUR CERTIFICATES.  The only credit enhancement for the
senior  certificates  will  be  the  subordination   provided  by  the  Class  M
Certificates and Class B Certificates. The only credit enhancement for the Class
M  Certificates  will  be the  subordination  provided  by the  Class  B  losses
Certificates.  If the aggregate  principal balance of the e Class B certificates
is reduced to zero,  losses will be allocated to the Class M certificates  until
the principal balance of the Class M Certificates has been reduced to zero.

          SEE   "SUMMARY--CREDIT    ENHANCEMENT"   AND   "DESCRIPTION   OF   THE
          CERTIFICATES--ALLOCATION OF LOSSES;  SUBORDINATION" IN THIS PROSPECTUS
          SUPPLEMENT.


LIMITED OBLIGATIONS

PAYMENTS  ON THE  MORTGAGE  LOANS  ARE  THE  ONLY  SOURCE  OF  PAYMENTS  ON YOUR
CERTIFICATES.  The  certificates  represent  interests  only in the  trust.  The
certificates do not represent an interest in or obligation of the depositor, the
servicer,  the seller or any of their  affiliates.  None of the  depositor,  the
servicer  or any of their  affiliates  will have any  obligation  to  replace or
supplement the credit  enhancement,  or to take any other action to maintain any
rating of the  certificates.  If  proceeds  from the assets of the trust are not
sufficient  to make all payments  provided  for under the pooling and  servicing
agreement,  investors will have no recourse to the depositor,  the servicer, the
seller or any other entity, and will incur the losses.




                                      S-10
<PAGE>

LIQUIDITY RISKS

YOU MAY HAVE TO HOLD YOUR  CERTIFICATES  TO MATURITY IF THEIR  MARKETABILITY  IS
LIMITED. A secondary market for the offered  certificates may not develop.  Even
if a secondary  market does develop,  it may not continue or it may be illiquid.
Neither the  underwriter nor any other person will have any obligation to make a
secondary market in your certificates.  Illiquidity means you may not be able to
find a buyer to buy your securities readily or at prices that will enable you to
realize a desired  yield.  Illiquidity  can have a severe  adverse effect on the
market value of your certificates.

Any class of offered certificates may experience illiquidity, although typically
illiquidity  is more  likely  for  classes  that  are  especially  sensitive  to
prepayment,  credit or interest rate risk, or that have been  structured to meet
the investment requirements of limited categories of investors.


SPECIAL YIELD AND PREPAYMENT  CONSIDERATIONS

THE YIELD TO  MATURITY  ON YOUR  CERTIFICATES  WILL  DEPEND ON VARIOUS  FACTORS,
INCLUDING  THE RATE OF  PREPAYMENTS.  The  yield to  maturity  on each  class of
offered certificates will depend on a variety of factors, including:

     o    the rate and  timing of  Principal  payments  on the  mortgage  loans,
          including  prepayments,   defaults  and  factors,   liquidations,  and
          repurchases due to breaches of representations or warranties;

     o    interest shortfalls due to mortgagor prepayments; and

     o    the purchase price of that class.

     The rate of prepayments is one of the most important and least  predictable
     of these factors.

     In  general,  if you  purchase a  certificate  at a price  higher  than its
     outstanding   principal   balance  and  principal   distributions  on  your
     certificate  occur  faster than you assumed at the time of  purchase,  your
     yield  will be lower  than  you  anticipated.  On the  other  hand,  if you
     purchase a  certificate  at a price  lower than its  outstanding  principal
     balance and  principal  distributions  on that class occur more slowly than
     you  assumed  at the time of  purchase,  your  yield will be lower than you
     anticipated.





                                      S-11
<PAGE>

THE RATE OF  PREPAYMENTS  ON THE  MORTGAGE  LOANS WILL VARY  DEPENDING ON FUTURE
MARKET  CONDITIONS AND OTHER FACTORS.  Because  mortgagors can typically  prepay
their mortgage loans at any time, the rate and timing of principal distributions
on the  offered  certificates  are  highly  uncertain.  Typically,  when  market
interest  rates  increase,  borrowers  are less likely to prepay their  mortgage
loans.  This could result in a slower  return of principal to you at a time when
you might have been able to  reinvest  your funds at a higher  rate of  interest
than the  pass-through  rate on your class of  certificates.  On the other hand,
when market  interest  rates  decrease,  borrowers are typically  more likely to
prepay their mortgage  loans.  This could result in a faster return of principal
to you at a time  when  you  might  not be able to  reinvest  your  funds  at an
interest rate as high as the pass-through rate on your class of certificates.

[____]% of the mortgage loans provide for a prepayment  penalty if the mortgagor
prepays  the  mortgage  loan.  Prepayment  penalties  may  reduce  the  rate  of
prepayment  on the  mortgage  loans until the end of the period  during  which a
prepayment penalty applies.

SEE "MATURITY AND PREPAYMENT CONSIDERATIONS" IN THE PROSPECTUS.

THE YIELD ON YOUR CERTIFICATES WILL BE AFFECTED BY THE SPECIFIC  CHARACTERISTICS
THAT APPLY TO THAT CLASS,  DISCUSSED  BELOW.  The offered  certificates  of each
class have different yield  considerations  and different  sensitivities  to the
rate  and  timing  of  principal  distributions.  The  following  is  a  general
discussion of some yield  considerations  and prepayment  sensitivities  of each
class.

SEE "CERTAIN YIELD AND PREPAYMENT CONSIDERATIONS" IN THIS PROSPECTUS SUPPLEMENT.

CLASS A CERTIFICATES. The Class A Certificates are subject to various priorities
for payment of principal. Distributions of principal on the Class A Certificates
with an earlier  priority of payment will be affected by the rates and timing of
prepayment of the mortgage loans early in the life of the mortgage pool.

CLASS M  CERTIFICATES.  Losses on the mortgage loans will be allocated among the
certificates in the manner described in this prospectus supplement. The yield to
investors in the Class M  Certificates  will be sensitive to the rate and timing
of losses on the mortgage  loans, if those losses are not covered by the Class B
Certificates.

SEE "SUMMARY--CREDIT  ENHANCEMENT--ALLOCATION OF LOSSES" AND "DESCRIPTION OF THE
CERTIFICATES--ALLOCATION   OF   LOSSES;   SUBORDINATION"   IN  THIS   PROSPECTUS
SUPPLEMENT.



                                      S-12
<PAGE>

It is not expected that the Class M Certificates  will receive any distributions
of principal prepayments until the distribution date in [__________] 200_. After
that date, a large portion of principal prepayments on the mortgage loans may be
allocated to the senior certificates,  and none or a relatively small portion of
principal prepayments may be paid to the holders of the Class M Certificates and
Class B Certificates.  [As a result,  the weighted  average lives of the Class M
Certificates may be longer than would otherwise be the case.]


RISK OF CERTAIN SHORTFALLS

RECEIVERSHIP  BY THE FDIC OF THE SERVICER  COULD CREATE GREATER RISKS TO YOU. If
seller's transfer of the mortgage loans to the depositor is deemed to constitute
the creation of a security  interest in the  mortgage  loans and to the servicer
extent  the  security  interest  was  validly  perfected  [before  the  seller's
insolvency and was not taken in  contemplation  of insolvency of the seller,  or
with the intent to hinder,  delay or defraud the seller or the  creditors of the
seller],  the  Federal  Deposit  Insurance  Act or FDIA,  as  amended by FIRREA,
provides  that the security  interest  should not be subject to avoidance by the
FDIC.  If the FDIC cannot avoid a legally  enforceable  and  perfected  security
interest,  it may repudiate  the security  interest.  If the FDIC  repudiates an
unavoidable security interest,  it could be liable for statutory damages.  These
damages are typically limited to actual compensatory damages.

In  addition,  the  FDIC,  would  also have the  power to  repudiate  contracts,
including the seller's  obligations under the pooling and servicing agreement to
repurchase  mortgage loans which do not conform to the seller's  representations
and  warranties.  The  non-conforming  mortgage  loans could suffer losses which
could result in losses on the certificates.

In addition,  in the case of an event of default  relating to the  receivership,
conservatorship  or insolvency of the servicer,  the receiver or conservator may
terminate  the  servicer  and  replace  it  with  a  successor   servicer.   Any
interference  with the termination of the servicer or appointment of a successor
servicer could result in a delay in payments to the certificateholders.

THE LACK OF  PHYSICAL  CERTIFICATES  MAY  CAUSE  DELAYS  IN  PAYMENT  AND  CAUSE
DIFFICULTY IN PLEDGING OR SELLING OFFERED CERTIFICATES. The Class A Certificates
and Class M  Certificates  will  physical not be issued in physical  form.  As a
result,  certificateholders  will be able to transfer  certificates only through
DTC   and   its   participants   or   indirect   participants.    In   addition,
certificateholders may experience some delay in receiving distributions on these
certificates  because the trustee will send all distributions to DTC, which will
then  credit  those  distributions  to the  participating  organizations.  Those
organizations  will in  turn  credit  accounts  certificateholders  have  either
directly or indirectly through indirect participants.

SEE "DESCRIPTION OF THE  CERTIFICATES--REGISTRATION OF THE OFFERED CERTIFICATES"
IN THIS PROSPECTUS SUPPLEMENT.



                                      S-13
<PAGE>



                                  INTRODUCTION

     Credit Suisse First Boston Mortgage Securities Corp. will establish a trust
for [____________________]  Mortgage-Backed  Pass-Through  Certificates,  Series
200_-____ on the closing date, under a pooling and servicing agreement among the
depositor,  [_________________],  as servicer  and  [_____________________],  as
trustee,  dated as of [_______ 1, 200_]. On the closing date, the depositor will
deposit into the trust a pool of mortgage  loans secured by one- to  four-family
residential properties with terms to maturity of not more than [__] years.

     Some capitalized terms used in this prospectus supplement have the meanings
given below under "Description of the Certificates--Glossary of Terms" or in the
prospectus under "Glossary."

                        DESCRIPTION OF THE MORTGAGE POOL

GENERAL

     The mortgage pool will consist of approximately  [____] mortgage loans with
an  aggregate  principal  balance  outstanding  as of the  cut-off  date,  after
deducting  payments  of  principal  due  on  or  before  the  cut-off  date,  of
approximately $[________].  The mortgage loans are secured by first liens on fee
simple or leasehold interests in one- to four-family residential real properties
with terms to  maturity  of not more than [__]  years.  The  mortgage  pool will
consist of conventional,  [fixed] [adjustable] rate, [fully-amortizing],  [level
monthly payment] mortgage loans. All percentages of the mortgage loans described
in this prospectus supplement are approximate percentages by aggregate principal
balance as of the cut-off date unless otherwise indicated.

     The  mortgage  loans will be purchased  by the  depositor  from the seller.
[___]% of the mortgage  loans were either  originated or purchased by the seller
in the normal course of its business. [[___]%, [___]% and [___]% of the mortgage
loans   were    originated    by   or   purchased    by    ____________________,
_____________________ and ________________________], respectively.

     [___]%,  [___]%,  [___]% and [___]% of the  mortgage  loans are  secured by
mortgaged properties in the states of [_________], [_________], [__________] and
[________],  respectively. Less than [___]% of the mortgage loans are secured by
mortgaged  properties  in any other  single  state.  No more than  [___]% of the
mortgage loans are secured by mortgaged properties in any single zip code.

     Except for  approximately  [___]% of the mortgage loans, each mortgage loan
at the time of  origination  was  represented  by the  related  mortgagor  to be
owner-occupied.

     The  mortgage  loans may be prepaid by the  mortgagors  at any time without
payment of any  prepayment  fee or  penalty[,  except for [___]% of the mortgage
loans,  which  provide  for payment of a  prepayment  penalty.  This  prepayment
penalty may discourage  mortgagors  from prepaying  their  mortgage  loans.  The
prepayment penalty is calculated as a percentage of the original loan amount and
declines each year. The prepayment penalty is only charged for



                                      S-14
<PAGE>

mortgage  loans paid in full.  The  prepayment  penalty only applies  during the
first three years of the mortgage loan term].

     As of the cut-off date, not more than [__]% of the mortgage loans were more
than 30 days delinquent in payments of principal and interest.

     As of the cut-off date,  not more than [__]% of the mortgage  loans provide
for deferred interest or negative amortization.

MORTGAGE LOAN POOL  CHARACTERISTICS.  The mortgage loans will have the following
characteristics:

     o    The mortgage  loans  consist of [____] fixed rate  mortgage  loans and
          [____] adjustable rate mortgage loans.

     o    The  mortgage  loans  have an  aggregate  principal  balance as of the
          cut-off date of $[__________].

     o    The mortgage loans had individual principal balances as of the cut-off
          date of at least $[________] but not more than  $[_________],  with an
          average  principal  balance as of the  cut-off  date of  approximately
          $[________].

     o    The  mortgage  loans  have  original  terms  to  stated   maturity  of
          approximately [__] years.

     o    The mortgage  loans have a weighted  average  remaining term to stated
          maturity of approximately [___] months as of the cut-off date.

     o    As of the cut-off date, the fixed rate mortgage loans bore interest at
          mortgage  rates of at least  [___]% per annum but no more than  [___]%
          per annum,  with a weighted  average  mortgage  rate of  approximately
          [___]% per annum.

     o    As of the  cut-off  date,  the  adjustable  rate  mortgage  loans bore
          interest at mortgage  rates of at least [____]% per annum but not more
          than  [____]%  per annum,  with a weighted  average  mortgage  rate of
          approximately  [____]% per annum.  The maximum  interest  rates ranged
          from [____]% per annum to [____]% per annum,  with a weighted  average
          maximum rate of [____]% per annum,  the minimum  interest rates ranged
          from [____] % per annum to [____]%  per annum with a weighted  average
          minimum  rate of [____]%  per annum.  The gross  margins  ranged  from
          [____]% per annum to [____]% per annum with a weighted  average  gross
          margin of [____]% per annum.

     o    [Description of Index].

     o    The original  loan-to-value  ratio of the mortgage  loans was not more
          than [___]%,  with a weighted average original  loan-to-value ratio of
          approximately [___]%.

     Loan-to-value ratio as used in this prospectus supplement, is calculated as
the original  mortgage  loan amount,  divided by the lesser of (i) the appraised
value of the related mortgaged



                                      S-15
<PAGE>



property at origination  and (ii) if the mortgage loan is a purchase money loan,
the sales price of the related mortgaged property.



                                      S-16
<PAGE>


     The tables below describe  additional  statistical  characteristics  of the
mortgage loans as of the cut-off date. All  percentages  are approximate and are
stated by principal  balance of the mortgage  loans as of the cut-off date,  and
have been rounded in order to add to 100%.  Dollar  amounts and number of months
have also been rounded.

                      DISTRIBUTION OF YEAR OF FIRST PAYMENT

<TABLE>

                         NUMBER OF      AGGREGATE PRINCIPAL   % OF AGGREGATE
YEAR OF FIRST PAYMENT   MORTGAGE LOANS      BALANCE           PRINCIPAL BALANCE

<S>                       <C>                  <C>                  <C>





Total

</TABLE>




                                      S-17
<PAGE>





                                  GROSS MARGIN
<TABLE>

RANGE OF GROSS      NUMBER OF       AGGREGATE PRINCIPAL      % OF  AGGREGATE
MARGINS(%)        MORTGAGE LOANS        BALANCE              PRINCIPAL BALANCE

<S>                  <C>                 <C>                       <C>






      TOTAL..........

</TABLE>


                                 MORTGAGE RATES
<TABLE>

RANGE OF           NUMBER OF          AGGREGATE PRINCIPAL     % OF AGGREGATE
MORTGAGE RATES     MORTGAGE LOANS         BALANCE             PRINCIPAL BALANCE
<S>                    <C>                    <C>                 <C>

%
%
%
%
%
%
%
Total

</TABLE>

     As of the cut-off date, the weighted average mortgage rates of the mortgage
loans will be [____]%.


                           CUT-OFF DATE MORTGAGE LOAN
                               PRINCIPAL BALANCES





                                      S-18
<PAGE>

<TABLE>

RANGE OF CUT-OFF DATE       NUMBER OF        AGGREGATE PRINCIPAL    % OF AGGREGATE
PRINCIPAL BALANCES          MORTGAGE LOANS         BALANCE          PRINCIPAL BALANCE

<S>                            <C>                  <C>                  <C>

Up to $50,000.00
$50,000.01-$100,000.00
$100,000.01-$150,000.00
$150,000.01-$200,000.00
$200,000.01-$250,000.00
$250,000.01-$300,000.00
$300,000.01-$350,000.00
$350,000.01-$400,000.00
$400,000.01-$500,000.00
$500,000.01-$600,000.00
$600,000.01-$700,000.00
$700,000.01-$800,000.00
$800,000.01-$900,000.01
$900,000.01-$1,000,000.00
Over $1,000,000.01
Total

</TABLE>


     As of the cut-off  date,  the  mortgage  loan  principal  balances  will be
$[______].







                                      S-19
<PAGE>

                            MORTGAGED PROPERTY TYPES


<TABLE>

                    NUMBER OF         AGGREGATE PRINCIPAL     % OF AGGREGATE
PROPERTY TYPE     MORTGAGE LOANS          BALANCE             PRINCIPAL BALANCE

<S>                  <C>                   <C>                     <C>

Single-Family
Residence
Condominium
Two Family
Three Family
Four Family
Townhouse
Total

</TABLE>

                              MORTGAGE LOAN PURPOSE
<TABLE>

                          NUMBER OF      AGGREGATE PRINCIPAL    % OF AGGREGATE
PURPOSE                MORTGAGE LOANS        BALANCE          PRINCIPAL BALANCE

<S>                        <C>                  <C>                    <C>

Refinancing
Cash-Out Refinancing
Purchase
Unknown
Total

</TABLE>

                          MORTGAGE LOAN OCCUPANCY TYPES
<TABLE>

                      NUMBER OF       AGGREGATE PRINCIPAL    % OF AGGREGATE
OCCUPANCY TYPE      MORTGAGE LOANS        BALANCE            PRINCIPAL BALANCE

<S>                      <C>                 <C>                   <C>

Primary
Investment
Second Home
Total

</TABLE>



                                      S-20
<PAGE>


                        MORTGAGE LOAN DOCUMENTATION TYPES

<TABLE>
                      NUMBER OF       AGGREGATE PRINCIPAL      % OF AGGREGATE
DOCUMENTATION       MORTGAGE LOANS        BALANCE              PRINCIPAL BALANCE

<S>                      <C>                <C>                      <C>

Low Documentation
Full Documentation
Reduced Documentation
Streamline Refinance
Total

</TABLE>

                             ORIGINAL TERM TO STATED
                         MATURITY OF THE MORTGAGE LOANS

<TABLE>

                     NUMBER OF       AGGREGATE PRINCIPAL      % OF AGGREGATE
RANGE OF MONTHS     MORTGAGE LOANS        BALANCE             PRINCIPAL BALANCE

<S>                    <C>                <C>                     <C>



</TABLE>

     The  weighted  average  original  term to stated  maturity for the mortgage
loans is [___] months.

                            REMAINING TERM TO STATED
                         MATURITY OF THE MORTGAGE LOANS

<TABLE>
                      NUMBER OF      AGGREGATE PRINCIPAL       % OF AGGREGATE
RANGE OF MONTHS     MORTGAGE LOANS       BALANCE              PRINCIPAL BALANCE

<S>                     <C>               <C>                       <C>



           Total

</TABLE>

     The weighted  average  remaining  term to stated  maturity for the mortgage
loans is [___] months.



                                      S-21
<PAGE>


                    [INSERT GEOGRAPHICAL DISTRIBUTION TABLE]

                             ORIGINAL LOAN-TO-VALUE
                          RATIOS OF THE MORTGAGE LOANS

<TABLE>

RANGE OF ORIGINAL         NUMBER OF          AGGREGATE        % OF AGGREGATE
LOAN-TO-VALUE RATIOS   MORTGAGE LOANS    PRINCIPAL BALANCE   PRINCIPAL BALANCE

<S>                         <C>                <C>                 <C>

0.00%--50.00%
50.01%-55.00%
55.01%-60.00%
60.01%-65.00%
65.01%-70.00%
70.01%-75.00%
75.01%-80.00%
80.01%-85.00%
85.01%-90.00%
90.01%-95.00%
Total

</TABLE>

     The weighted average of the original  loan-to-value ratios for the mortgage
loans is [___]%.

     The weighted average of the Discount Fractions of the mortgage loans will
be ___%.

     [Included  below is a table showing the Credit Scores for some  mortgagors.
Credit Scores are obtained by many mortgage  lenders in connection with mortgage
loan applications to help assess a borrower's  credit-worthiness.  Credit Scores
are  obtained  from  credit  reports   provided  by  various  credit   reporting
organizations,   each  of  which  may  employ  differing   computer  models  and
methodologies.  The  Credit  Score is  designed  to assess a  borrower's  credit
history at a single point in time, using objective information currently on file
for the borrower at a particular credit reporting organization. Information used
to create a Credit  Score may  include,  among other  things,  payment  history,
delinquencies on accounts, levels of outstanding indebtedness,  length of credit
history,  types of credit, and bankruptcy  experience.  Credit Scores range from
[__] to [__], with higher scores  indicating an individual with a more favorable
credit history compared to an individual with a lower score.  However,  a Credit
Score  purports  only  to be a  measurement  of the  relative  degree  of risk a
borrower represents to a lender at a single point in time, i.e., a borrower with
a higher score is statistically expected to be less likely to default in payment
than a borrower with a lower score. In addition,  investors should be aware that
Credit Scores were developed to indicate a level of default  probability  over a
two-year  period,  which does not  correspond  to the life of a  mortgage  loan.
Mortgage loans typically amortize over a [__] year period.  Furthermore,  Credit
Scores were not  developed  specifically  for use in  connection  with  mortgage
loans,  but for consumer loans in general,  and assess only the borrower's  past
credit history.  Therefore,  a Credit Score does not take into consideration the
differences between mortgage loans and consumer loans generally, or the specific
characteristics  of the related  mortgage loan, for example,  the  loan-to-value
ratio, the collateral for the mortgage loan, or the debt to income ratio.  There
can be no assurance that the Credit Scores of the



                                      S-22
<PAGE>


mortgagors  will be an accurate  predictor of the likelihood of repayment of the
related  mortgage loans or that any mortgagor's  Credit Score would not be lower
if obtained as of the date of the prospectus supplement.]

                           [CREDIT SCORE DISTRIBUTION]

<TABLE>

                          NUMBER OF      AGGREGATE PRINCIPAL   % OF AGGREGATE
RANGE OF NOTE MARGINS   MORTGAGE LOANS       BALANCE           PRINCIPAL BALANCE

<S>                         <C>               <C>                  <C>

451-500
501-550
551-600
601-650
651-700
701-750
751-800
801-850
Total

</TABLE>

UNDERWRITING STANDARDS

GENERAL

     All of the mortgage loans included in the mortgage pool will be acquired by
the  depositor  from the seller.  The  following is a brief  description  of the
various  underwriting  standards and the  procedures  applicable to the mortgage
loans.

     All one- to four-family  residential  mortgage  loans must meet  acceptable
credit,  appraisal and underwriting  criteria as established by the seller.  The
seller's underwriting  standards are applied in accordance with applicable state
and federal laws and regulations. Underwriting guidelines are established to set
acceptable  criteria regarding credit history,  repayment  ability,  adequacy of
necessary liquidity, and adequacy of the collateral.  These guidelines typically
conform to secondary market standards, particularly for conforming loan amounts.

     Additional  loan-to-value  ratio  guidelines are established for individual
programs and loan amount ranges.

     Three general sets of  underwriting  guidelines  are applicable to mortgage
loans:

     o    Standard:  includes  all the basic  guidelines  and is applied to both
          fixed rate and ARM products;

     o    Portfolio  Feature:  includes  specific  enhanced  guidelines  such as
          slightly  higher  loan-to-value  ratios,  and 40  year  terms,  and is
          available only on ARM products; and




                                      S-23
<PAGE>

     o    Subprime:  allows for  deviations  from basic  guidelines  for credit,
          collateral  and  income  stability  in return for  risk-based  pricing
          premiums.

     [The mortgage loans have been  originated  under  documentation  guidelines
classified as "Full Doc", "Low Doc Reduced Doc" and "Streamline  Refinance Doc."
The Full Doc program  consists  of two years of tax  returns  for  self-employed
applicants,  paystubs and W-2's for salaried  applicants and bank statements for
verification of liquidity.  The Low Doc program utilizes income as stated by the
borrower in the loan application and, for certain  loan-to-value ratios and loan
amounts, assets as stated by the borrower. In Low Doc transactions,  independent
confirmation  of the  borrower's  source  of  income is  obtained.  The  Reduced
Documentation  program utilizes borrower paystubs and W-2 forms and a Streamline
Refinance   Documentation   program  utilizes  borrower  paystubs  and  original
appraised value with a current drive-by inspection.]

     [CSFB]'s underwriting of the mortgage loans consisted of an analysis of
the following applicant information:

     o    an  applicant's  income,  employment,   assets,  debts,  payments  and
          specific questions regarding credit history,

     o    an evaluation and confirmation of an applicant's credit history,

     o    the  adequacy  and  stability of an  applicant's  income,  including a
          review of the documentation, verification of employment and income, an
          analysis of tax returns and statements of assets and liabilities.

     o    calculations  are made to establish  the  relationship  between  fixed
          expenses  and  gross  monthly  income,  which  are  reviewed  for  the
          applicant's overall ability to repay the mortgage loan including other
          income  sources,  commitment  to the  property as evidenced by loan to
          value, other liquid resources,  ability to accumulate assets and other
          compensating factors, and

     o    the adequacy of the mortgaged  property to serve as  collateral  for a
          mortgage  loan,  including a physical  inspection of the property,  an
          evaluation  of the  property's  value for recent  sales of  comparable
          properties and its conformity to neighborhood standards.

     [All  mortgage  loans are  subject to a sampling by the  seller's  internal
Quality  Assurance  Department,  which  reviews  and  reverifies  a  statistical
sampling of loans on a regular basis. All loans with  loan-to-value  ratios over
80% have either private mortgage  insurance coverage in an amount meeting Fannie
Mae and Freddie Mac  requirements  or a higher  interest rate in lieu of private
mortgage  insurance.]  Adequate title insurance and hazard insurance is required
for all loans. From time to time, loan-to-value ratio exceptions may be made for
credit  worthy  applicants  who  exhibit  strong  compensating  factors and well
supported collateral valuations.



                                      S-24
<PAGE>



                           THE SELLER AND THE SERVICER

GENERAL

[____________________], is the seller and servicer for all the mortgage loans in
the mortgage pool.

                [ADDITIONAL SERVICER INFORMATION TO BE INCLUDED]



                         DESCRIPTION OF THE CERTIFICATES

GENERAL

     The Trust will issue the following [___] classes of senior certificates:

     o    [Class A Certificates]; [and

     o    [Class R Certificates].]

     In addition  to the senior  certificates,  the trust will also  include the
following [___] classes of subordinate certificates:

     o    [Class M Certificates]; and

     o    [Class B Certificates].

Only the Class A Certificates[,  Class R Certificates]  and Class M certificates
are offered by this prospectus supplement.

     The certificates will evidence the entire beneficial  ownership interest in
the trust. The trust will consist of:

     o    the mortgage loans;

     o    the assets as from time to time are  identified as deposited  relating
          to the mortgage loans in the Custodial  Account and in the Certificate
          Account and belonging to the trust;

     o    property acquired by foreclosure of the mortgage loans or deed in lieu
          of foreclosure;

     o    any  applicable   primary  mortgage   insurance  policies  and  hazard
          insurance policies; and

     o    all proceeds of any of the foregoing.




                                      S-25
<PAGE>

     The Class A Certificates evidence in the aggregate an initial beneficial
ownership   interest  of  approximately   [___]%  in  the  trust.  The  Class  M
Certificates and Class B Certificates  will evidence in the aggregate an initial
beneficial  ownership interest of approximately  [___]% and [___]% respectively,
in the trust.

     The Class A  Certificates  and the Class M  Certificates  will be available
only in book-entry  form through the facilities of The Depository  Trust Company
or DTC.  The Class A  Certificates  and Class M  Certificates  will be issued in
minimum  denominations of $25,000 and integral multiples of $1 in excess of that
amount.  [The Class R Certificates  will be issued in  registered,  certificated
form in minimum denominations of [__]% percentage interests.]

BOOK-ENTRY REGISTRATION

     The  Class  A  Certificates  and  Class  M  Certificates  will  be  issued,
maintained  and   transferred   on  the  book-entry   records  of  DTC  and  its
participants.  Any person  acquiring an interest in any Class A Certificate  and
Class  M  Certificate  will  hold  its  certificate  through  DTC,  if  it  is a
participant  in that  system,  or  indirectly  through  organizations  which are
participants in that system.  The Class A Certificates  and Class M Certificates
will be  represented by one or more  certificates  registered in the name of the
nominee of DTC. The  depositor  has been informed by DTC that DTC's nominee will
be Cede & Co.

     Beneficial  owners that are not  participants or indirect  participants but
desire to purchase,  sell or otherwise transfer ownership of, or other interests
in, the Class A  Certificates  or Class M  Certificates  may do so only  through
participants  and indirect  participants.  In addition,  beneficial  owners will
receive  all  distributions  of  principal  of  and  interest  on  the  Class  A
Certificates  and Class M  Certificates  from the paying  agent  through DTC and
participants.  Accordingly,  beneficial  owners may  experience  delays in their
receipt of payments. Unless and until definitive certificates are issued for the
Class A Certificates  and Class M Certificates,  it is anticipated that the only
registered   certificateholder   of  the  Class  A  Certificates   and  Class  M
Certificates  will be Cede,  as  nominee  of DTC.  No  beneficial  owner will be
entitled  to receive a  certificate  of any class in fully  registered  form,  a
definitive  certificate,  except as  described  in this  prospectus  supplement.
Beneficial  owners  will not be  recognized  by the  trustee or the  servicer as
certificateholders,  as the term is used in the pooling and servicing agreement,
and  beneficial  owners will be  permitted to receive  information  furnished to
certificateholders  and  to  exercise  the  rights  of  certificateholders  only
indirectly through DTC, its participants and indirect participants.

     Under the rules,  regulations and procedures creating and affecting DTC and
its  operations,  DTC is required to make  book-entry  transfers  of the Class A
Certificates  and Class M  Certificates  among  participants  and to receive and
transmit   distributions   of  principal  of,  and  interest  on,  the  Class  A
Certificates and Class M Certificates.  Participants  and indirect  participants
with which  beneficial  owners have  accounts for the Class A  Certificates  and
Class M  Certificates  similarly are required to make  book-entry  transfers and
receive and  transmit  distributions  on behalf of their  respective  beneficial
owners.  Accordingly,  although  beneficial  owners  will not  possess  physical
certificates  evidencing their interests in the Class A Certificates and Class M
Certificates,  DTC's  rules  provide a  mechanism  by which  beneficial  owners,
through




                                      S-26
<PAGE>

their  participants and indirect  participants,  will receive  distributions and
will be able to transfer their interests in the Class A Certificates and Class M
Certificates.

     None of the depositor, the servicer or the trustee will have any liability
for any actions  taken by DTC or its  nominee,  including,  without  limitation,
actions for any aspect of the records relating to or payments made on account of
beneficial  ownership  interests  in  the  Class  A  Certificates  and  Class  M
Certificates  held by Cede, as nominee for DTC, or for maintaining,  supervising
or reviewing any records relating to the beneficial ownership interests.

DEFINITIVE CERTIFICATES

     Definitive  certificates  will be  issued  to  beneficial  owners  or their
nominees,  respectively,  rather  than to DTC or its  nominee,  only  under  the
following limited conditions:

     o    the  depositor  notifies  the trustee in writing that DTC is no longer
          willing or able to discharge  its  responsibilities  as  depository in
          relation  to the  book-entry  certificates  and  the  trustee  and the
          depositor are unable to locate a qualified successor;

     o    the depositor  elects to terminate the book-entry  system through DTC;
          or

     o    after the  occurrence  of an event of default  under the  pooling  and
          servicing  agreement,  holders of certificates  evidencing at least 66
          2/3% of the aggregate outstanding certificate principal balance of the
          certificates,  advise  the  trustee  and  DTC  that  the  use  of  the
          book-entry  system  through DTC is no longer in the best  interests of
          the holders of the certificates.

     On the occurrence of any of the events  described above, DTC is required to
notify all DTC participants of the availability of definitive  certificates.  On
surrender  by  DTC of the  definitive  certificates  representing  the  Class  A
Certificates  and Class M Certificates  and on receipt of instructions  from DTC
for re-registration, the trustee will reissue the Class A Certificates and Class
M Certificates  as definitive  certificates  issued in the respective  principal
amounts owned by individual  beneficial  owners,  and thereafter the trustee and
the  servicer  will  recognize  the holders of the  definitive  certificates  as
certificateholders under the pooling and servicing agreement.




                                      S-27
<PAGE>



GLOSSARY OF TERMS

     The following terms are given the meanings shown below to help describe the
cash flows on the certificates:

     AGGREGATE SUBORDINATE PERCENTAGE - For any date of determination, an amount
equal to the aggregate Certificate Principal Balance of the Class M Certificates
and Class B  Certificates,  divided by the aggregate  Principal  Balances of the
mortgage loans immediately prior to that date.

     AVAILABLE DISTRIBUTION AMOUNT - For any distribution date, the excess of:

     (A) the sum of:

     o    the aggregate amount of scheduled payments and collections received by
          the servicer relating to each mortgage loan on or prior to the related
          determination  date and not  previously  remitted,  from  any  source,
          including  amounts  received  from the  related  mortgagor,  Insurance
          Proceeds,  Liquidation Proceeds,  net of related Liquidation Expenses,
          and condemnation  awards,  and amounts received in connection with the
          purchase  of any  mortgage  loans by the  seller or  servicer  and the
          substitution of replacement mortgage loans, and excluding interest and
          other  earnings on amounts on deposit in or credited to the  Custodial
          Account and the Certificate Account, and

     o    the aggregate amount of monthly Advances [and Compensating  Interest],
          required to be remitted by the servicer  relating to that distribution
          date;

     (B)  over the sum of:

     o    the aggregate  amount of the servicing  compensation to be paid to the
          servicer  under  the terms of the  pooling  and  servicing  agreement,
          including,  without limitation,  servicing fees, prepayment penalties,
          fees or premiums,  late payment  charges and  assumption  fees and any
          excess  interest  charges  payable by the  mortgagor  by virtue of any
          default or other non-compliance by the mortgagor with the terms of the
          mortgage  note  or  any  other  instrument  or  document  executed  in
          connection therewith or otherwise,

     o    any amount representing late payments or other recoveries of principal
          or  interest,  including  Liquidation  Proceeds,  net  of  Liquidation
          Expenses, Insurance Proceeds and condemnation awards, for any mortgage
          loans which the servicer has made a  previously  unreimbursed  monthly
          Advance to the extent of that monthly Advance,

     o    amounts  representing  reimbursement  of  nonrecoverable  Advances and
          other amounts  permitted to be withdrawn from the Custodial Account or
          the Certificate Account,




                                      S-28
<PAGE>


     o    all  monthly  payments or  portions  of monthly  payments,  other than
          principal prepayments and other unscheduled  collections of principal,
          received relating to scheduled  principal and interest on any mortgage
          loan due after the related due period and included therein,

     o    all payments due on any mortgage  loan on or prior to the cut-off date
          and included therein, and

     o    principal  prepayments and other unscheduled  collections of principal
          received after the related prepayment period and included therein.

     CERTIFICATE  PRINCIPAL BALANCE - For any offered certificate as of any date
of determination,  an amount equal to the initial Certificate  Principal Balance
of that certificate, reduced by the aggregate of:

     o    all amounts  allocable to principal  previously  distributed  for that
          certificate, and

     o    any  reductions  in  the   Certificate   Principal   Balance  of  that
          certificate  deemed to have occurred in connection with allocations of
          Realized Losses in the manner described in this prospectus supplement.

     CLASS B PERCENTAGE - As of any date of  determination a percentage equal to
100% minus the sum of the Class A Percentage and the Class M Percentage.

     CLASS M INTEREST DISTRIBUTION AMOUNT - For any distribution date, an amount
equal to:

     o    one-twelfth of the product of (i) the  Certificate  Principal  Balance
          for the  related  class of  certificates  immediately  preceding  that
          distribution  date,  multiplied by (ii) the pass-through rate for that
          class;

     o    minus, the sum of:

          (1)  any related Prepayment Interest  Shortfalls  occurring during the
               related Prepayment Period; and

          (2)  any related  Relief Act Shortfalls  occurring  during the related
               due period.

     CLASS  M  PERCENTAGE  -  For  any  date  of  determination,  the  aggregate
Certificate  Principal  Balances  of the  Class M  Certificates  divided  by the
aggregate  Principal  Balances of all mortgage loans  immediately  prior to that
determination date.

     CLASS M  PRINCIPAL  DISTRIBUTION  AMOUNT - For any  distribution  date,  an
amount equal to the lesser of (i) the Available  Distribution  Amount  remaining
after payment of the Senior Interest  Distribution  Amount, the Senior Principal
Distribution  Amount and the Class M Interest Amount and (ii) the product of the
related Class M Percentage and the Principal Distribution Amount.



                                      S-29
<PAGE>

     [COMPENSATING  INTEREST  - The  sum of the  servicing  fee  payable  to the
servicer for its servicing  activities and  reinvestment  income received by the
servicer on amounts payable for that distribution date.]

     FINAL  DISPOSITION  - With  respect to a defaulted  mortgage  loan, a Final
Disposition is deemed to have occurred upon a determination by the servicer that
it has received all Insurance Proceeds,  Liquidation Proceeds and other payments
or cash recoveries which the servicer reasonably and in good faith expects to be
finally recoverable with respect to the mortgage loan.

     NET MORTGAGE  RATE - On each  mortgage  loan is equal to its mortgage  rate
minus the servicing fee rate as described in this prospectus supplement.

     PASS-THROUGH RATE - For each class of certificates is the per annum rate at
which interest accrues on that class.

     o    The  Pass-Through   Rate  for  the  Class  A,  Class  M  and  Class  R
          Certificates is equal to the per annum rate listed on page S-[__].

     o    The Pass-Through Rate for the Class B Certificates is equal to [__]%.

     PREPAYMENT  INTEREST  SHORTFALL - For any distribution date is equal to the
aggregate  shortfall if any in collections of interest,  adjusted to the related
Net Mortgage  Rates,  resulting  from full or partial  mortgagor  prepayments of
principal on the related  mortgage  loans during the related  prepayment  period
less any  Compensating  Interest  payable  for  that  distribution  date.  These
shortfalls  will result  because  interest on prepayments in full is distributed
only to the date of  prepayment,  and  because no  interest  is  distributed  on
prepayments  in  part,  as  prepayments  in  part  are  applied  to  reduce  the
outstanding  principal  balance of the related mortgage loans as of the due date
in the month of prepayment.  For any distribution date, any interest  shortfalls
resulting from  prepayments in full during the preceding  calendar month will be
offset by the servicer,  but only to the extent such interest  shortfalls do not
exceed an amount equal to the lesser of (a) one-twelfth of 0.125% of the [Stated
Principal Balance] of the mortgage loans immediately preceding that distribution
date  and (b) the sum of the  servicing  fee  payable  to the  servicer  for its
servicing activities and reinvestment income received by the servicer on amounts
payable for that distribution date.

     PREPAYMENT  PERIOD - For any distribution  date is the calendar month prior
to the month in which that distribution date occurs.

     PRINCIPAL  BALANCE - For any mortgage loan as of any date of determination,
an amount equal to the initial  certificate  principal balance as of the cut-off
date,  minus all amounts  allocated to principal  that have been  distributed to
certificateholders  for that  mortgage  loan on or before that date,  as further
reduced to the extent any  Realized  Loss  thereon has been  allocated to one or
more classes of certificates on or before that date.

     PRINCIPAL  DISTRIBUTION  AMOUNT - On any distribution  date, the sum of the
following:




                                      S-30
<PAGE>

          (1) the principal portion of all scheduled monthly payments due during
     the related due period on each  outstanding  mortgage loan,  whether or not
     received on or prior to the related determination date;

          (2) the Principal Balance of any mortgage loan repurchased  during the
     related Prepayment Period under the pooling and servicing agreement and the
     amount of any shortfall  deposited in the  Custodial  Account in connection
     with the  substitution  of a deleted  mortgage  loan under the  pooling and
     servicing agreement during the related prepayment period;

          (3)  the  principal  portion  of all  other  unscheduled  collections,
     including  principal  prepayments  in full  and  curtailments  and  amounts
     received in connection with a [Final  Disposition] [Cash Liquidation or REO
     Disposition] of a mortgage loan described in clause  (a)(ii)(B),  Insurance
     Proceeds, Liquidation Proceeds; and

     any amounts  allocable to  principal  for any  previous  distribution  date
calculated under clauses (1), (2) and (3) above that remain undistributed to the
extent that such  amounts are not  attributable  to Realized  Losses  which were
allocated to the Class M Certificates or Class B Certificates.

     REALIZED LOSS - The amount  determined by the servicer,  in connection with
any  mortgage  loan  equal to (i) for any  liquidated  loan,  the  excess of the
principal  balance of the liquidated loan plus interest  thereon at a rate equal
to the  applicable  Net Mortgage Rate from the due date as to which interest was
last paid up to the due date next succeeding such liquidation over proceeds,  if
any,  received in connection  with the  liquidation,  after  application  of all
withdrawals  permitted  to be made by the  servicer  from the related  Custodial
Account for the mortgage  loan,  (ii) for any mortgage loan which has become the
subject of a deficient  valuation,  the excess of the  principal  balance of the
mortgage  loan over the  principal  amount as  reduced  in  connection  with the
proceedings  resulting in the deficient  valuation,  (iii) for any mortgage loan
which has become the subject of a Debt Service  Reduction,  the present value of
all monthly Debt Service  Reductions  on that mortgage  loan,  assuming that the
mortgagor  pays each  monthly  payment  on the  applicable  due date and that no
principal prepayments are received for that mortgage loan, discounted monthly at
the  applicable  mortgage  rate,  or (iv) the  amount  of any  reduction  by the
servicer to the  principal  balance of that  mortgage loan under the pooling and
servicing agreement as a result of a default or imminent default.

     RELIEF ACT SHORTFALL - For any distribution  date and any mortgage loan, is
the amount of any interest that is not collectible from the mortgagor during the
related due period under the Relief Act or similar legislation or regulations as
in effect from time to time.

     SENIOR  CUMULATIVE  INTEREST  SHORTFALL  AND  CLASS M  CUMULATIVE  INTEREST
SHORTFALL - For any distribution date, an amount equal to (i) any portion of the
related Senior  Interest  Distribution  Amount or Class M Interest  Distribution
Amount,  as applicable,  that was not  distributed to the Holders of the related
Senior  Certificates or the Holders of Class M Certificates,  as applicable,  on
any  preceding  Distribution  Date less (ii) any amount  described in clause (i)
hereof  that is  included  in a  Realized  Loss that has been  allocated  to the
holders of



                                      S-31
<PAGE>


Class A  Certificates,  Class R Certificates or Class M Certificates on or prior
to that distribution date.

     SENIOR INTEREST  DISTRIBUTION AMOUNT - For each distribution date an amount
equal to:  one-twelfth of the product of the Certificate  Principal  Balance for
the  related  class  of  Class  A   Certificates   immediately   preceding  that
distribution date,  multiplied by the pass-through rate on that class,  provided
that if the  Available  Distribution  Amount  is  insufficient  to make the full
distributions of interest referred to in this clause, the Available Distribution
Amount  shall  be  distributed  to the  Class A  Certificates  and  the  Class R
Certificates pro rata based on the full amounts allocable to that class.

     SENIOR  PERCENTAGE - As of any date of  determination a percentage equal to
the lesser of (a) 100% and (b) the aggregate  Certificate  Principal  Balance of
the [Class A Certificates and Class R Certificates],  immediately  prior to that
distribution  date  divided  by the  aggregate  Principal  Balance of all of the
mortgage loans immediately prior to that distribution date.

     SENIOR PRINCIPAL  DISTRIBUTION AMOUNT - On any distribution date, an amount
equal to the lesser of (a) the  balance  of the  Available  Distribution  Amount
remaining after the Senior Interest Distribution Amount has been distributed and
(b) the Senior Percentage times the Principal Distribution Amount.

DISTRIBUTIONS

     Distributions  on the offered  certificates  will be made by the trustee on
the [__] day of each month or, if that day is not a business  day, then the next
succeeding  business day,  commencing  in [______  200_].  Distributions  on the
certificates  will be made to the  persons in whose names the  certificates  are
registered at the close of business on the day prior to each  distribution  date
or, if the certificates are no longer DTC registered certificates, on the record
date. See  "Description  of the  Securities--Distributions"  in the  prospectus.
Distributions  will be made by check or money order mailed, or on the request of
a  certificateholder   owning  [Class  A  Certificates]  having   denominations,
aggregating at least $1,000,000,  by wire transfer or otherwise,  to the address
of the person entitled to the distribution, which, in the case of DTC registered
certificates,  will  be DTC or  its  nominee,  as it  appears  on the  trustee's
register in amounts calculated as described in this prospectus supplement on the
determination date. However, the final distribution relating to the certificates
will be made only on presentation and surrender of the certificate at the office
or the agency of the trustee  specified in the notice to  certificateholders  of
the final  distribution.  A business day is any day other than (a) a Saturday or
Sunday or (b) a day on which banking  institutions in the states of [__________]
and [_______] are required or authorized by law to be closed.

INTEREST DISTRIBUTIONS

     Holders  of each class of Class A  Certificates  [and each class of Class R
Certificates],  will be entitled to receive interest  distributions in an amount
equal to the Accrued  Certificate  Interest  on that class on each  distribution
date, to the extent of the Available  Distribution  Amount for that distribution
date,  commencing on the first  distribution  date in the case of all classes of
Class  A  Certificates   [and  Class  R   Certificates]   entitled  to  interest
distributions.



                                      S-32
<PAGE>

     Holders of each class of Class M  Certificates  will be entitled to receive
interest distributions in an amount equal to the Accrued Certificate Interest on
that  class  on  each  distribution   date,  to  the  extent  of  the  Available
Distribution  Amount for that distribution date after  distributions of interest
and  principal  to the Class A  Certificates  [and  Class R  Certificates],  and
reimbursements for some Advances to the servicer.

     Prepayment Interest Shortfalls will result because interest on prepayments
in full is distributed  only to the date of prepayment,  and because no interest
is distributed on prepayments in part, as these  prepayments in part are applied
to reduce the outstanding  principal balance of the related mortgage loans as of
the due date in the month of prepayment.

     [However,  on any  distribution  date, any Prepayment  Interest  Shortfalls
resulting from  prepayments in full during the preceding  calendar month will be
offset  by the  servicer,  but  only to the  extent  those  Prepayment  Interest
Shortfalls  do  not  exceed  the  amount  of  the  servicing  fee  due  on  that
distribution  date.   Prepayment  Interest  Shortfalls  resulting  from  partial
prepayments  will not be offset by the servicer from servicing  compensation  or
otherwise.  No assurance  can be given that the servicing  compensation  will be
sufficient to cover the shortfalls on any distribution date. Prepayment Interest
Shortfalls will be allocated to all certificates from which the shortfall arose,
based on interest  accrued on those  classes  for that  distribution  date.  See
"Pooling and Servicing  Agreement--Servicing  and Other Compensation and Payment
of Expenses" in this prospectus supplement.]

     If on any distribution date the Available  Distribution Amount is less than
Accrued  Certificate   Interest  on  the  Class  A  Certificates  [and  Class  R
Certificates] for that distribution  date, the shortfall will be allocated among
the holders of all classes of Class A Certificates [and Class R Certificates] in
proportion to the respective  amounts of Accrued  Certificate  Interest for that
distribution date. In addition,  the amount of any interest  shortfalls that are
covered by subordination, specifically, interest shortfalls not described in the
definition of Available Distribution Amount preceding paragraph,  will be unpaid
Accrued  Certificate  Interest  and  will be  distributable  to  holders  of the
certificates   of  those  classes   entitled  to  those  amounts  on  subsequent
distribution dates, in each case to the extent of available funds after interest
distributions as required in this prospectus supplement.

     These shortfalls could occur, for example, if delinquencies on the mortgage
loans were  exceptionally  high and were  concentrated in a particular month and
Advances by the  servicer  did not cover the  shortfall.  Any amounts so carried
forward will not bear interest.  Any interest shortfalls will not be offset by a
reduction in the servicing compensation of the servicer or otherwise,  except to
the limited extent described in the preceding  paragraph for Prepayment Interest
Shortfalls resulting from prepayments in full.

As described in this prospectus  supplement,  the Accrued  Certificate  Interest
allocable to each class of certificates  is based on the  Certificate  Principal
Balance of that class.




                                      S-33
<PAGE>




PRINCIPAL  DISTRIBUTIONS  ON THE CLASS A CERTIFICATES,  CLASS M CERTIFICATES AND
CLASS R CERTIFICATES

     Distributions  of  principal  in an amount  equal to the  Senior  Principal
Distribution  Amount on the Class A Certificates  [and Class R Certificates]  on
each  distribution  date will be made to the Class A  Certificates  [and Class R
Certificates],  after  distribution of the Senior Interest  Distribution and any
Senior Cumulative  Interest  Shortfall  Amount,  pro rata, in reduction of their
Certificate Principal Balances,  until their Certificate Principal Balances have
been reduced to zero.

     Holders  of each  class of the Class M  Certificates  will be  entitled  to
receive on each distribution date, to the extent of the portion of the Available
Distribution Amount remaining after:

     o    the sum of the Senior  Interest  Distribution  Amount,  Principal Only
          Distribution  Amount  and  Senior  Principal  Distribution  Amount  is
          distributed,

     o    reimbursement  is  made  to the  master  servicer  for  some  Advances
          remaining  unreimbursed following the final liquidation of the related
          mortgage loan to the extent described below under "Advances," and

     o    the aggregate amount of Accrued  Certificate  Interest  required to be
          distributed to the class of Class M Certificates on that  distribution
          date is distributed to those Class M Certificates,

a  distribution   allocable  to  principal   equal  to  the  Class  M  Principal
Distribution  Amount in reduction of their  Certificate  Principal Balance until
the Certificate  Principal Balances of the Class M Certificates has been reduced
to "zero."

REMAINING DISTRIBUTIONS

     Any amounts remaining after the distributions to the Class A, [Class R] and
Class M Certificateholders on any distribution date shall be paid to the holders
of the Class B  Certificates  and Class R  Certificates  in accordance  with the
terms of the Pooling Agreement.

ASSIGNMENT OF MORTGAGE LOANS

     On the closing  date,  the seller will  transfer to the  depositor  and the
depositor  will in turn  transfer  to the  trust,  all of its  right,  title and
interest  in and to each  mortgage  loan,  the related  mortgage  note and other
related  documents  contained  in the  mortgage  file,  including  all  payments
received  after the cut-off  date,  except  payments  that  represent  scheduled
principal and interest on the mortgage loans due on or before [_______] 1, 200_.
Each mortgage loan transferred to the trust will be identified on a schedule and
the schedule  will be delivered to the trustee  under the pooling and  servicing
agreement. The mortgage loan schedule will include




                                      S-34
<PAGE>

information as to the principal  balance of each mortgage loan as of the cut-off
date, as well as information regarding the mortgage rates on the mortgage loans.

     The servicer and the seller,  respectively,  will make  representations and
warranties  regarding  its ability to service and sell the mortgage  loans.  The
seller  will make  representations  and  warranties  as to the  accuracy  in all
material  respects  of  information  furnished  to the  trustee  regarding  each
mortgage  loan. In addition,  the seller will  represent and warrant,  as of the
closing  date,  that,  among  other  things (i) the seller  has  transferred  or
assigned to the depositor all of its right,  title and interest in each mortgage
loan and mortgage file,  free of any lien, and (ii) each mortgage loan complied,
at the time of origination,  in all material  respects with applicable state and
federal  laws.  Under the pooling and servicing  agreement,  the seller will, on
discovery of a breach of any  representation  and warranty which  materially and
adversely affects the interest of the certificateholders in the related mortgage
loans and mortgage files,  have a period of 60 days after discovery or notice of
the  breach to effect a cure.  If the breach  cannot be cured  within the 60-day
period, or 120 days if the seller is diligently pursuing a cure, the seller will
be obligated to (i)  substitute  for the  defective  mortgage loan a replacement
mortgage  loan if the  substitution  is within two years of the closing  date or
(ii) purchase the defective mortgage loan from the trust at a price equal to the
outstanding  principal balance of the defective  mortgage loan as of the date of
purchase,  plus unpaid interest  thereon from the date interest was last paid or
with respect to which interest was advanced and not  reimbursed  through the end
of the  calendar  month in which the purchase  occurred,  plus the amount of any
unreimbursed servicing advances made by the servicer.

ALLOCATION OF LOSSES; SUBORDINATION

     The  subordination  provided  to the  senior  certificates  by the  Class B
Certificates and Class M Certificates and the subordination  provided to each of
the Class M  Certificates  by the Class B  Certificates  and will cover Realized
Losses on the mortgage loans. Realized Losses will be allocated as follows:

     o    first, to the Class B Certificates; and

     o    second, to the Class M Certificates,

in  each  case  until  the  certificate   principal  balance  of  the  class  of
certificates has been reduced to zero; and thereafter, Realized Losses among all
the remaining  classes of [Class A Certificates  and Class R Certificates]  on a
pro rata  basis,  until  the  Certificate  Principal  Balances  of the  [Class A
Certificates and the Class R Certificates] has been reduced to zero.

     Investors in the Class A Certificates  and Class R  Certificates  should be
aware that the certificate  principal  balances of the Class M Certificates  and
Class B Certificates  could be reduced to zero as a result of a disproportionate
amount of realized  losses on the mortgage loans.  Therefore,  the allocation to
the Class M  Certificates  and Class B  Certificates  of realized  losses on the
mortgage  loans  will  reduce  the   subordination   provided  to  the  Class  A
Certificates  and Class R Certificates  by the Class M Certificates  and Class B
Certificates  and increase the likelihood  that realized losses may be allocated
to any class of the Class A Certificates and Class R Certificates.




                                      S-35
<PAGE>

     Any  allocation  of a  Realized  Loss  to a  certificate  will  be  made by
reducing:

     o    its  Certificate  Principal  Balance,  in the  case  of the  principal
          portion  of the  Realized  Loss,  in each case  until the  Certificate
          Principal Balance of the class has been reduced to zero, and

     o    the Accrued Certificate Interest for that certificate,  in the case of
          the interest  portion of the Realized Loss, by the amount so allocated
          as of the  distribution  date  occurring  in the month  following  the
          calendar month in which the Realized Loss was incurred.

     In addition, any allocation of a Realized Loss to a Class M Certificate may
also be made by operation of the payment priorities described under "--Principal
Distributions on the Senior  Certificates" and any class of Class M Certificates
with a higher payment priority.

     In order to maximize the likelihood of  distribution in full of each Senior
Interest  Distribution  Amount,  Principal Only  Distribution  Amount and Senior
Principal Distribution Amount, on each distribution date, holders of the Class A
Certificates  and  Class R  Certificates  have a right to  distributions  of the
related Available Distribution Amount that is prior to the rights of the holders
of the Class M Certificates and Class B Certificates, to the extent necessary to
satisfy each Senior Interest  Distribution  Amount,  Principal Only Distribution
Amount and Senior Principal Distribution Amount.  Similarly,  and holders of the
Class M Certificates have a right to distributions of the Available Distribution
Amount prior to the rights of holders of the Class B Certificates.

     An  allocation  of a Realized  Loss on a pro rata  basis  among two or more
classes  of  certificates  means  an  allocation  to each of  those  classes  of
certificates on the basis of its then outstanding  Certificate Principal Balance
prior to giving effect to distributions to be made on that  distribution date in
the case of an allocation of the principal  portion of a Realized Loss, or based
on the Accrued  Certificate  Interest thereon for that  distribution date in the
case of an allocation of the interest portion of a Realized Loss.

     The application of the Senior Accelerated  Prepayment  Percentage,  when it
exceeds  the Senior  Percentage,  to  determine  the  related  Senior  Principal
Distribution  Amount will  accelerate  the  amortization  of the related  senior
certificates  relative to the actual  amortization of the mortgage loans. To the
extent that the senior  certificates  are  amortized  faster  than the  mortgage
loans,  in the absence of offsetting  Realized  Losses  allocated to the Class M
Certificates and Class B Certificates,  the percentage interest evidenced by the
senior  certificates  in the  trust  will  be  decreased,  with a  corresponding
increase in the interest in the trust evidenced by the Class M Certificates  and
Class  B  Certificates,   thereby  increasing,   relative  to  their  respective
certificate   principal   balances,   the  subordination   afforded  the  senior
certificates  by  the  Class  M  Certificates   and  the  Class  B  Certificates
collectively.

SERVICING COMPENSATION AND PAYMENT OF EXPENSES

     The servicer  will be entitled to receive each month a servicing  fee equal
to one-twelfth of the per annum rate  established  for each mortgage loan as the
servicing fee rate on the Principal Balance of each mortgage loan. The servicing
fee relating to each mortgage loan will be retained




                                      S-36
<PAGE>



by the servicer from payments and collections,  including Insurance Proceeds and
Liquidation Proceeds, for that mortgage loan. The servicer will also be entitled
to retain as additional  servicing  compensation all investment income earned on
amounts  on  deposit in the  Custodial  Account,  all  default  charges  and all
prepayment,  late  payment  and  assumption  fees and other fees  payable by the
mortgagor under the related mortgage note.

     The  servicer  will  pay all  expenses  incurred  in  connection  with  its
responsibilities  under the pooling and servicing agreement,  including all fees
and expenses  payable to any subservicer and the various  expenses  discussed in
the prospectus. See "Description of the  Certificates--Servicing by Unaffiliated
Sellers" in the prospectus.

ADVANCES

     Prior to each distribution  date, the servicer is required to make Advances
of monthly  payments  which were due on the  mortgage  loans on the  immediately
preceding due date and delinquent on the business day next preceding the related
determination date.

     These  Advances  are required to be made only to the extent they are deemed
by the  servicer to be  recoverable  from related  late  collections,  Insurance
Proceeds,  Liquidation  Proceeds or amounts  otherwise payable to the holders of
the certificates.  The purpose of making these Advances is to maintain a regular
cash flow to the certificateholders,  rather than to guarantee or insure against
losses.  The servicer  will not be required to make any Advances with respect to
reductions  in the amount of the monthly  payments on the mortgage  loans due to
the  application of the Relief Act or similar  legislation or  regulations.  Any
failure by the  servicer  to make an Advance as  required  under the pooling and
servicing  agreement  will  constitute  an event of  default,  in which case the
trustee,  as successor  servicer,  will be  obligated  to make any  Advance,  in
accordance with the terms of the pooling and servicing agreement.

     All Advances will be reimbursable to the servicer on a first priority basis
from either (i) late collections,  Insurance  Proceeds and Liquidation  Proceeds
from the mortgage loan as to which such unreimbursed Advance was made or (ii) as
to any Advance that remains unreimbursed in whole or in part following the final
liquidation  of  the  related   mortgage  loan,   from  any  amounts   otherwise
distributable on any of the certificates.  The effect of these provisions on the
Class M  Certificates  is  that,  for any  Advance  which  remains  unreimbursed
following the final  liquidation of the related mortgage loan, the entire amount
of the  reimbursement  for the Advance will be borne first by the holders of the
Class  B  Certificates,  and  then  by the  holders  of the  class  of  Class  M
Certificates  to the  extent of the  amounts  otherwise  distributable  to them,
except as provided above.

OPTIONAL TERMINATION

     The servicer will have the option,  on any  distribution  date on which the
aggregate  principal  balance  of the  mortgage  loans  is less  than 10% of the
aggregate  principal  balance of the mortgage  loans as of the cut-off  date, to
purchase all  remaining  mortgage  loans and other assets in the trust,  thereby
effecting early retirement of the offered certificates. Any purchase of mortgage
loans and other assets of the trust shall be made at a price equal to the sum of
(a) 100% of the unpaid principal balance of each mortgage loan as of the date of
repurchase plus (b)



                                      S-37
<PAGE>



accrued  interest on each  mortgage  loan at the Net  Mortgage  Rate to, but not
including,  the  first  day of the  month  in  which  the  repurchase  price  is
distributed.   Distributions  on  the  certificates  relating  to  any  optional
termination  will be paid,  first,  to the Class A Certificates  and the Class R
Certificates,  pro rata,  second,  to the Class M  Certificates  in the order of
their payment priority and, third, to the Class B Certificates.

     On  presentation  and surrender of the offered  certificates  in connection
with the termination of the trust under the  circumstances  described above, the
holders  of the  offered  certificates  will  receive  an  amount  equal  to the
Certificate  Principal  Balance  of that  class  plus  interest  thereon  at the
then-applicable pass-through rate, plus any previously unpaid interest, reduced,
as described above, in the case of the termination of the trust resulting from a
purchase of all the assets of the trust.

THE TRUSTEE

     The trustee, [________________________], has its corporate trust offices at
[_______________________].  The trustee  may resign at any time,  in which event
the depositor  will be obligated to appoint a successor  trustee.  The depositor
may also remove the trustee if the trustee  ceases to be eligible to continue as
such  under the  pooling  and  servicing  agreement  or if the  trustee  becomes
insolvent.  In these  circumstances,  the  depositor  will also be  obligated to
appoint a  successor  trustee.  Any  resignation  or removal of the  trustee and
appointment of a successor trustee will not become effective until acceptance of
the appointment by the successor trustee.

     The pooling and servicing  agreement  requires the trustee to maintain,  at
its own expense,  an office or agency in New York City where certificates may be
surrendered  for  registration  of transfer or  exchange  and where  notices and
demands to or upon the trustee  and the  certificate  registrar  relating to the
certificates under the pooling and servicing agreement may be served.

     The  trustee,  or any of its  affiliates,  in its  individual  or any other
capacity,  may become the owner or pledgee of certificates  with the same rights
as it would have if it were not trustee.

     The  trustee  will  also act as paying  agent,  certificate  registrar  and
authenticating agent under the pooling and servicing agreement.




                                      S-38
<PAGE>



                   CERTAIN YIELD AND PREPAYMENT CONSIDERATIONS

FACTORS AFFECTING PREPAYMENTS AND DEFAULTS ON THE MORTGAGE LOANS

     The yields to maturity and the  aggregate  amount of  distributions  on the
offered  certificates  will be  affected  by the rate and  timing  of  principal
payments on the 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  mortgagor  prepayments  on  the  mortgage  loans  by  the
mortgagors,  liquidations of defaulted  mortgage loans and purchases of mortgage
loans due to breaches of some representations and warranties.

     The  timing  of  changes  in the  rate  of  prepayments,  liquidations  and
purchases  of the mortgage  loans may,  and the timing of Realized  Losses will,
significantly  affect  the yield to an  investor,  even if the  average  rate of
principal  payments  experienced  over  time is  consistent  with an  investor's
expectation.  The rate of prepayments on mortgage loans is also  influenced by a
variety of economic,  geographic,  social and other factors, including the level
of mortgage  interest  rates and the rate at which  mortgagors  default on their
mortgages.  In general,  if interest rates fall significantly below the mortgage
rates on the mortgage  loans,  the mortgage  loans are likely to be subject to a
higher incidence of prepayment.  On the other hand, if prevailing interest rates
rise significantly  above the mortgage rates on the mortgage loans, the mortgage
loans are likely to be subject to a lower  incidence  of  prepayment.  Since the
rate and timing of  principal  payments  on the  mortgage  loans will  depend on
future  events and on a variety of  factors,  as  described  in this  prospectus
supplement and in the prospectus under "Yield  Considerations" and "Maturity and
Prepayment  Considerations",  no  assurance  can be  given as to the rate or the
timing of principal payments on the offered certificates.

     The mortgage  loans in most cases may be prepaid by the  mortgagors  at any
time without payment of any prepayment fee or penalty, although a portion of the
mortgage  loans  provide for payment of a prepayment  penalty,  which may have a
substantial  effect  on the rate of  prepayment  of those  mortgage  loans.  See
"Description of the Mortgage Pool--Mortgage Pool Characteristics."

     Investors in the offered  certificates  should consider the risk that rapid
rates  of  prepayments  on  the  mortgage  loans,  and  therefore  of  principal
distributions  on the offered  certificates,  may  coincide  with periods of low
prevailing interest rates. During these periods, the effective interest rates on
securities  in which an  investor  in the  offered  certificates  may  choose to
reinvest amounts received as principal distributions on the offered certificates
may be lower  than the  interest  rate borne by the  certificates.  On the other
hand,  slow  rates of  prepayments  on the  mortgage  loans,  and  therefore  of
principal distributions on the offered certificates may coincide with periods of
high prevailing  interest rates.  During these periods,  the amount of principal
distributions   available  to  an  investor  in  the  offered  certificates  for
reinvestment at the high prevailing interest rates may be relatively low.




                                      S-39
<PAGE>

     All of the mortgage  loans will contain  due-on-sale  clauses.  The sale of
mortgaged properties  encumbered by non-assumable  mortgage loans will result in
the  prepayment  of the  mortgage  loans  and a  corresponding  decrease  in the
weighted  average  life of the  applicable  class of offered  certificates.  See
"Maturity and Prepayment Considerations" in the prospectus.

     The mortgage loans have been  originated with  underwriting  standards that
are less  stringent  than  underwriting  standards  employed  by Freddie Mac and
Fannie Mae and,  as a result,  may  experience  a higher  rate of  default  than
mortgage  loans  originated  with  more  stringent  underwriting  standards.  In
addition,  there is significant  geographic  concentration in the mortgage pool,
which could also  increase  the risk of loss on the  Mortgage  loans.  See "Risk
Factors" and "Description of the Mortgage Pool" in this prospectus supplement

     The assumed scheduled final distribution date for the offered  certificates
is  [________]  20__  which is the  distribution  date  occurring  in the  month
following the month in which the latest stated  maturity of any mortgage loan in
the mortgage pool.

     No event of default,  change in the priorities for  distribution  among the
classes or other provision under the pooling and servicing  agreement will arise
or  become  applicable  solely by reason of the  failure  to retire  the  entire
Certificate  Principal  Balance  of any  offered  certificates  on or before its
assumed final distribution date.

MODELING ASSUMPTIONS

     For purposes of preparing  the table below,  indicating  the  percentage of
initial Certificate  Principal Balance outstanding and the weighted average life
of the offered  certificates under various prepayment  scenarios,  the following
assumptions have been made:

     the mortgage loans consist of the following characteristics:

                                         MORTGAGE LOANS

         Aggregate principal balance               $
         Weighted Average Mortgage Rate            %
         Servicing Fee Rate                        %
         Original term to maturity
         (months)
         Remaining term to maturity
         (months)


     (1)  there are no repurchases of the mortgage loans;

     (2)  the certificates will be purchased on [___________, 20__];

     (3)  distributions on the certificates will be made on the 19th day of each
          month, commencing in [___________, 20__];

     (4)  no mortgage loan is delinquent and there are no Realized  Losses while
          the certificates are outstanding;



                                      S-40
<PAGE>



     (5)  there are no Prepayment  Interest Shortfalls or shortfalls of interest
          with regard to the mortgage loans;

     (6)  there is no optional termination of the trust by the servicer.

     These  modeling  assumptions  have  been  based  on  the  weighted  average
characteristics of the mortgage loans. The actual characteristics of many of the
mortgage loans may vary significantly from these modeling assumptions.

     Prepayments  on  mortgage  loans  are  commonly   measured  relative  to  a
prepayment standard or model. The model used in this prospectus supplement,  the
prepayment speed assumption, represents an assumed rate of prepayment each month
relative to the then  outstanding  principal  balance of a pool of new  mortgage
loans. A 100% prepayment  assumption assumes a constant  prepayment rate of 0.0%
per annum of the then outstanding principal balance of the 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 thirteenth month. Beginning in the thirteenth
month and in each month thereafter during the life of the mortgage loans, a 100%
prepayment  assumption assumes a constant prepayment rate of 6.0% per annum each
month. As used in the table below, a 0% prepayment assumption assumes prepayment
rates equal to 0% of prepayment assumption, no prepayments.  Correspondingly,  a
100% prepayment  assumption assumes prepayment rates equal to 100% of prepayment
assumption,  and so  forth.  Prepayment  assumption  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 actual  characteristics  and  performance  of the  mortgage  loans will
differ from the assumptions used in constructing  the tables shown below,  which
are  hypothetical in nature and are provided only to give a general sense of how
the principal cash flows might behave under varying  prepayment  scenarios.  For
example,  it is very  unlikely  that the mortgage  loans will prepay at the same
rate until  maturity.  Any  difference  between the  assumptions  and the actual
characteristics  and  performance of the mortgage  loans,  or actual  prepayment
experience,  will affect the percentage of initial Certificate Principal Balance
outstanding over time and the weighted average life of the offered certificates.

               [TABLES REGARDING CLASS M CERTIFICATES TO BE ADDED]

                         FEDERAL INCOME TAX CONSEQUENCES

     Orrick,  Herrington & Sutcliffe LLP,  counsel to the  depositor,  has filed
with the  depositor's  registration  statement  an opinion  to the effect  that,
assuming compliance with all provisions of the pooling and servicing  agreement,
for federal  income tax  purposes,  the trust will  qualify as a REMIC under the
Internal Revenue Code.

     For federal income tax purposes:

     o    the Class R Certificates  will  constitute the sole class of "residual
          interests" in the related REMIC, and




                                      S-41
<PAGE>

     o    each class of Class A Certificates,  Class M Certificates  and Class B
          Certificates  will represent  ownership of "regular  interests" in the
          REMIC and will be treated as debt instruments of the REMIC.

     See "Federal Income Tax Consequences--REMIC Trust Funds" in the prospectus.

     For federal  income tax reporting  purposes,  the [Class [__]  Certificates
will] [the Class [__]  Certificates  may] [and Class [__] Certificates will not]
be treated as having been issued with original  issue  discount.  The prepayment
assumption  that will be used in  determining  the rate of accrual  of  original
issue  discount,  market  discount and premium,  if any, for federal  income tax
purposes  will be based on the  assumption  that,  subsequent to the date of any
determination  the  mortgage  loans will prepay at a rate equal to [100]% of the
prepayment  assumption.  No  representation is made that the mortgage loans will
prepay  at  that  rate  or  at  any  other  rate.   See   "Federal   Income  Tax
Consequences--General"  and "--REMIC  Trust  Funds--Taxation  of Owners of REMIC
Regular Certificates--Original Issue Discount" in the prospectus.

     If the  method for  computing  original  issue  discount  described  in the
prospectus  results  in a  negative  amount  for any  period  with  respect to a
certificateholder,  the amount of  original  issue  discount  allocable  to that
period would be zero and the certificateholder  will be permitted to offset that
negative  amount  only  against  future   original  issue   discount,   if  any,
attributable to those certificates.

     In some  circumstances  the OID  regulations  permit  the  holder of a debt
instrument to recognize original issue discount under a method that differs from
that  used by the  issuer.  Accordingly,  it is  possible  that the  holder of a
certificate  may be able to  select  a method  for  recognizing  original  issue
discount that differs from that used by the servicer in preparing reports to the
certificateholders and the IRS.

     Some of the offered  certificates  may be treated  for  federal  income tax
purposes as having been issued at a premium.  Whether any holder of one of those
classes  of  certificates   will  be  treated  as  holding  a  certificate  with
amortizable bond premium will depend on the  certificateholder's  purchase price
and the distributions remaining to be made on the certificate at the time of its
acquisition by the  certificateholder.  Holders of those classes of certificates
should  consult  their  tax  advisors  regarding  the  possibility  of making an
election to amortize this premium.  See "Federal Income Tax  Consequences--REMIC
Trust  Funds--Taxation  of Owners of REMIC Regular  Certificates"  and "--Market
Discount and Premium" in the prospectus.

     The [offered  certificates]  will be treated as assets described in Section
7701(a)(19)(C)  of the  Internal  Revenue Code and "real  estate  assets"  under
Section  856(c)(4)(A)  of the Internal  Revenue Code in the same proportion that
the  assets of the trust  would be so  treated.  In  addition,  interest  on the
offered  certificates  will be treated as  "interest on  obligations  secured by
mortgages on real property" under Section  856(c)(3)(B) of the Internal  Revenue
Code to the extent that the Class A  Certificates  are  treated as "real  estate
assets" under Section 856(c)(4)(A) of the Internal Revenue Code.  Moreover,  the
offered  certificates,  other  than the  Principal  Only  Certificates,  will be
"qualified  mortgages" within the meaning of Section  860G(a)(3) of the Internal
Revenue Code if  transferred to another REMIC on its startup day in exchange for
a regular or  residual  interest  therein.  However,  prospective  investors  in
offered certificates that



                                      S-42
<PAGE>

will be  treated  as assets  described  in Section  860G(a)(3)  of the  Internal
Revenue Code should note that, regardless of the treatment,  any repurchase of a
certificate pursuant to the right of the servicer or the depositor to repurchase
the offered  certificates  may adversely affect any REMIC that holds the offered
certificates  if the  repurchase  is made under  circumstances  giving rise to a
Prohibited  Transaction Tax. See "Description of the  Certificates--Termination"
and "Federal Income Tax Consequences--REMIC Trust Funds--Classification of REMIC
Trust Funds" in the prospectus.

SPECIAL TAX CONSIDERATIONS APPLICABLE TO THE CLASS R CERTIFICATES

     The IRS has issued REMIC  regulations  under the provisions of the Internal
Revenue Code that significantly affect holders of the Class R Certificates.  The
REMIC regulations impose  restrictions on the transfer or acquisition of certain
residual interests,  including the Class R Certificates.  In addition, the REMIC
regulations  contain  restrictions  that apply to the transfer of  "noneconomic"
residual interests to United States persons. The pooling and servicing agreement
includes  other  provisions  regarding  the  transfer  of Class R  Certificates,
including  (i) the  requirement  that any  transferee  of a Class R  Certificate
provide an affidavit  representing that the transferee (a) is not a disqualified
organization,  (b) is not  acquiring  the  Class R  Certificate  on  behalf of a
disqualified  organization  and (c) will  maintain that status and will obtain a
similar  affidavit  from any person to whom the  transferee  shall  subsequently
transfer a Class R Certificate,  (ii) a provision that any transfer of a Class R
Certificate to a disqualified person shall be null and void and (iii) a grant to
the servicer of the right,  without notice to the holder or any prior holder, to
sell to a  purchaser  of its choice any Class R  Certificate  that shall  become
owned by a disqualified  organization  despite (i) and (ii) above.  In addition,
under the pooling and servicing  agreement,  the Class R Certificates may not be
transferred to non-United States persons.

     The REMIC  regulations  also  provide  that a transfer  to a United  States
person of "noneconomic"  residual  interests will be disregarded for all federal
income tax purposes, and that the purported transferor of "noneconomic" residual
interests  will  continue to remain liable for any taxes due with respect to the
income on the residual interests, unless "no significant purpose of the transfer
was to  impede  the  assessment  or  collection  of  tax."  Based  on the  REMIC
regulations,  the  Class R  Certificates  may  constitute  noneconomic  residual
interests  during  some  or  all of  their  terms  for  purposes  of  the  REMIC
regulations and, accordingly,  unless no significant purpose of a transfer is to
impede  the  assessment  or  collection  of  tax,   transfers  of  the  Class  R
Certificates may be disregarded and purported  transferors may remain liable for
any taxes due relating to the income on the Class R Certificates.  All transfers
of the Class R Certificates  will be restricted in accordance  with the terms of
the pooling and servicing  agreement that are intended to reduce the possibility
of any transfer  being  disregarded  to the extent that the Class R Certificates
constitute   noneconomic   residual   interests.   See   "Federal   Income   Tax
Consequences--REMIC   Trust   Funds--Taxation   of  Owners  of  REMIC   Residual
Certificates--Noneconomic REMIC Residual Certificates" in the prospectus.

     The  Class R  Certificateholders  may be  required  to  report an amount of
taxable  income for the  earlier  accrual  periods of the term of the REMIC that
significantly  exceeds the amount of cash distributions  received by the Class R
Certificateholders  from the REMIC for those  periods.  Furthermore,  the tax on
that income may exceed the cash distributions for those periods.



                                      S-43
<PAGE>

Consequently,  Class R  Certificateholders  should  have other  sources of funds
sufficient  to pay any  federal  income  taxes due in the  earlier  years of the
REMIC's  term as a result of their  ownership  of the Class R  Certificates.  In
addition,  the required  inclusion of this amount of taxable  income  during the
REMIC's earlier accrual periods and the deferral of corresponding  tax losses or
deductions until later accrual periods or until the ultimate sale or disposition
of a Class R  Certificate  or  possibly  later  under the "wash  sale"  rules of
Section   1091  of  the   Internal   Revenue   Code  may   cause   the  Class  R
Certificateholders'  after-tax rate of return to be zero or negative even if the
Class R  Certificateholders'  pre-tax rate of return is positive.  That is, on a
present value basis, the Class R  Certificateholders'  resulting tax liabilities
could  substantially  exceed the sum of any tax  benefits  and the amount of any
cash distributions on the Class R Certificates over their life.

     An individual,  trust or estate that holds,  whether directly or indirectly
through  pass-through  entities,  a Class R  Certificate  may  have  significant
additional gross income with respect to, but may be limited on the deductibility
of,  servicing and trustee's  fees and other  administrative  expenses  properly
allocable  to  the  REMIC  in  computing  the  certificateholder's  regular  tax
liability and will not be able to deduct those fees or expenses to any extent in
computing  the  certificateholder's   alternative  minimum  tax  liability.  See
"Federal Income Tax Consequences--REMIC Trust Funds--Taxation of Owners of REMIC
Residual Certificates--Pass-Through of Servicing Fees" in the prospectus.

     The seller will be designated as the "tax matters  person" for the REMIC as
defined in the REMIC Provisions, and in connection therewith will be required to
hold not less than 0.01% of the Class R Certificates.

     Purchasers  of the Class R  Certificates  are  strongly  advised to consult
their tax advisors as to the economic and tax  consequences of investment in the
Class R Certificates.  For further information  regarding the federal income tax
consequences of investing in the Class R  Certificates,  see "Federal Income Tax
Consequences--REMIC   Trust   Funds--Taxation   of  Owners  of  REMIC   Residual
Certificates" in the prospectus.

NEW WITHHOLDING REGULATIONS

     The Treasury Department has issued new regulations which make modifications
to the withholding, backup withholding and information reporting rules described
above.  The new  regulations  attempt to unify  certification  requirements  and
modify reliance  standards.  The new regulations  will be effective for payments
made after [December 31, 200_], subject to certain transition rules. Prospective
investors  are  urged  to  consult  their  own tax  advisors  regarding  the new
regulations.

                             METHOD OF DISTRIBUTION

     In accordance with the terms and conditions of an  underwriting  agreement,
dated  [__________],  200_, Credit Suisse First Boston Corporation has agreed to
purchase and the depositor has agreed to sell the Class A  Certificates  and the
Class  M  Certificates,  [except  that  a de  minimis  portion  of the  Class  R
Certificates will be retained by [____________]]. The certificates being sold to
the underwriter are referred to as the underwritten certificates. It is



                                      S-44
<PAGE>

expected that  delivery of the  underwritten  certificates  will be made only in
book-entry form through the Same Day Funds Settlement System of DTC, on or about
[________, 200_], against payment therefor in immediately available funds. It is
expected  that the Class R  Certificates  will be available  for delivery at the
office of the  underwriter,  against payment  therefor in immediately  available
funds.

     In connection  with the  underwritten  certificates,  the  underwriter  has
agreed,  in  accordance  with  the  terms  and  conditions  of the  underwriting
agreement,  to  purchase  all of  the  underwritten  certificates  if any of the
underwritten certificates are purchased thereby.

     The underwriting agreement provides that the obligations of the underwriter
to pay for and accept delivery of the  underwritten  certificates is conditioned
upon,  among other things,  the receipt of legal opinions and to the conditions,
among others, that no stop order suspending the effectiveness of the depositor's
registration  statement  shall be in effect,  and that no  proceedings  for that
purpose shall be pending  before or threatened  by the  Securities  and Exchange
Commission.

     The  distribution  of the offered  certificates  by the  underwriter may be
effected from time to time in one or more negotiated transactions, or otherwise,
at varying  prices to be determined  at the time of sale.  The  underwriter  may
effect the transactions by selling the  certificates to or through dealers,  and
these dealers may receive  compensation in the form of  underwriting  discounts,
concessions or commissions  from the  underwriter for whom they act as agent. In
connection with the sale of the underwritten  certificates,  the underwriter may
be  deemed  to have  received  compensation  from the  depositor  in the form of
underwriting compensation. The underwriter and any dealers that participate with
the underwriter in the  distribution  of any  underwritten  certificates  may be
deemed  to be  underwriters  and any  profit on the  resale of the  underwritten
certificates  positioned by them may be deemed to be underwriting  discounts and
commissions  under the  Securities  Act of 1933,  as  amended.  Proceeds  to the
depositor  from  the sale of the  underwritten  certificates,  before  deducting
expenses payable by the depositor, will be approximately [___]% of the aggregate
Certificate  Principal  Balance of the  underwritten  certificates  plus accrued
interest  from the cut-off  date.  The  underwriter  will sell the  underwritten
certificates, other than the Class R Certificates, to the seller.

     The underwriting  agreement  provides that the depositor will indemnify the
underwriter, and that under limited circumstances the underwriter will indemnify
the depositor,  against some liabilities under the Securities Act, or contribute
to payments required to be made in respect thereof.

     The primary  source of  information  available to investors  concerning the
underwritten  certificates  will  be the  monthly  statements  discussed  in the
prospectus    under    "Description    of    the     Certificates--Reports    to
Certificateholders,"  which  will  include  information  as to  the  outstanding
principal  balance of the offered  certificates.  There can be no assurance that
any additional  information regarding the offered certificates will be available
through any other source. In addition,  the depositor is not aware of any source
through which price information about the offered certificates will be available
on an ongoing  basis.  The  limited  nature of this  information  regarding  the
offered   certificates  may  adversely  affect  the  liquidity  of  the  offered
certificates,  even if a secondary market for the offered  certificates  becomes
available.



                                      S-45
<PAGE>

                                 LEGAL OPINIONS

     Certain legal matters  relating to the  certificates  will be passed on for
the depositor and the  underwriter  by [Orrick,  Herrington & Sutcliffe LLP, New
York, New York].  Legal matters  relating to the seller and the servicer will be
passed on by [_____________________].

                                     RATINGS

     It is a condition to the issuance of the Class A  Certificates,  other than
the Principal  Only  Certificates,  and the Class R  Certificates,  that they be
rated "AAA" by [___________________] and [__________________]. It is a condition
to the  issuance of the Class M  Certificates  that they be rated not lower than
"[_____]," "[_____]"and "[_____]," respectively, by [__________].

     The ratings on mortgage pass-through certificates address the likelihood of
the  receipt  by  certificateholders  of all  distributions  on  the  underlying
mortgage loans to which the  certificateholders are entitled. The rating process
addresses the structural  and legal aspects  associated  with the  certificates,
including the nature of the underlying  mortgage loans.  The ratings assigned to
mortgage  pass-through  certificates  do not  represent  any  assessment  of the
likelihood that principal  prepayments  will be made by mortgagors or the degree
to which any prepayments might differ from those originally anticipated,  and do
not address the possibility  that  certificateholders  might suffer a lower than
anticipated yield.

     [The  "r" of the  "AAAr"  rating  of the  Principal  Only  Certificates  by
_____________ is attached to highlight derivative, hybrid, and other obligations
that ______________  believes may experience high volatility or high variability
in expected returns due to non-credit risks. Examples of these obligations are:

     o    securities  whose principal or interest return is indexed to equities,
          commodities, or currencies
     o    certain swaps and options; and
     o    interest only and principal only mortgage securities.

     The absence of an "r" symbol should not be taken as an  indication  that an
obligation will exhibit no volatility or variability in total return.]

     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
organization.  Each  security  rating should be evaluated  independently  of any
other security rating. In the event that the ratings  initially  assigned to the
offered  certificates  are  subsequently  lowered for any  reason,  no person or
entity is obligated to provide any additional  support or credit enhancement for
the offered certificates.

                                LEGAL INVESTMENT

     The  [Class  A  Certificates  and  Class M  Certificates]  will  constitute
"mortgage related securities" for purposes of SMMEA so long as they are rated in
at least the second highest rating category by one of the Rating Agencies,  and,
as such,  are legal  investments  for entities to the extent  provided in SMMEA.
SMMEA provides, however, that states could override its



                                      S-46
<PAGE>


provisions on legal investment and restrict or condition  investment in mortgage
related  securities by taking  statutory  action on or prior to October 3, 1991.
Some states have enacted  legislation which overrides the preemption  provisions
of SMMEA.

     The depositor makes no representations as to the proper characterization of
any class of the offered certificates for legal investment or other purposes, or
as to the ability of  particular  investors to purchase any class of the offered
certificates under applicable legal investment restrictions. These uncertainties
may  adversely  affect  the  liquidity  of any  class of  offered  certificates.
Accordingly,  all institutions whose investment  activities are subject to legal
investment laws and regulations,  regulatory  capital  requirements or review by
regulatory  authorities  should consult with their legal advisors in determining
whether and to what extent any class of the offered  certificates  constitutes a
legal investment or is subject to investment, capital or other restrictions.

See "Legal Investment" in the prospectus.



                                      S-47
<PAGE>



                              ERISA CONSIDERATIONS

     Any ERISA  plan,  any  insurance  company,  whether  through its general or
separate  accounts or any other person  investing ERISA plan assets of any ERISA
plan, as defined under "ERISA  Considerations--Plan  Assets  Regulations" in the
prospectus, 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 or Section 4975 of the Internal Revenue
Code.

     The purchase or holding of the offered certificates, other than the Class M
Certificates or the Class R Certificates, by or on behalf of, or with ERISA plan
assets  of,  an  ERISA  plan  may  qualify  for   exemptive   relief  under  the
underwriter's  prohibited  transaction  exemption,  as  described  under  "ERISA
Considerations--Underwriter's  PTE" in the  prospectus.  However,  the exemption
contains a number of  conditions  which must be met for the  exemption to apply,
including the requirement  that the ERISA plan must be an "accredited  investor"
as defined in Rule  501(a)(1)  of  Regulation D of the  Securities  and Exchange
Commission under the Securities Act.

     [Insurance companies contemplating the investment of general account assets
in the offered  certificates  should  consult with their legal  advisors for the
applicability   of  Section   401(c)  of  ERISA,   as  described   under  "ERISA
Considerations--Insurance  Company General Accounts" in the prospectus.  The DOL
issued final  regulations  under  Section  401(c) on January 4, 2000,  but these
final regulations are not applicable until July 5, 2001.]

     Because  the  exemptive  relief  afforded by the  exemption  or any similar
exemption that might be available will not likely apply to the purchase, sale or
holding of the Class M  Certificates,  no Class M  Certificate  or any  interest
therein may be acquired or held by any ERISA plan,  any trustee or other  person
acting on behalf of any ERISA plan,  or any other person using ERISA plan assets
to effect the acquisition or holding - a plan investor - unless:

     o    the acquirer or holder is an insurance company,

     o    the  source  of  funds  used to  acquire  or hold the  certificate  or
          interest therein is an "insurance  company general account" as defined
          in U.S.  Department of Labor  Prohibited  Transaction  Class Exemption
          95-60, and

     o    the conditions Sections I and III of PTCE 95-60 have been satisfied.

     Each  beneficial  owner of a Class M  Certificate  or any interest  therein
shall be deemed to have represented,  by virtue of its acquisition or holding of
the certificate or interest  therein,  that either (i) it is not a Plan Investor
or (ii) (1) it is an insurance company,  (2) the source of funds used to acquire
or hold the  certificate or interest  therein is an "insurance  company  general
account" as the term is defined in PTCE 95-60, and (3) the conditions  listed in
Sections I and III of PTCE 95-60 have been satisfied.

     If any Class M Certificate  or any interest  therein is acquired or held in
violation of the  provisions  of the  preceding  paragraph,  the next  preceding
permitted beneficial owner will be



                                      S-48
<PAGE>



treated as the beneficial  owner of the Class M Certificate,  retroactive to the
date of transfer to the purported  beneficial  owner.  Any purported  beneficial
owner whose  acquisition or holding of any  certificate or interest  therein was
effected  in  violation  of the  provisions  of the  preceding  paragraph  shall
indemnify  and hold  harmless the  depositor,  the trustee,  the  servicer,  any
subservicer  and the trust from and  against  any and all  liabilities,  claims,
costs or expenses  incurred by those parties as a result of that  acquisition or
holding.

     Investors in the Class M Certificates are urged to obtain from a transferee
of  those  certificates  a  certification  of the  transferee's  eligibility  to
purchase the certificates in the form of the  representation  letter attached as
Annex I to this prospectus supplement.

     Because  the  exemptive  relief  afforded by the  exemption  or any similar
exemption  that might be available  also will not likely apply to the  purchase,
sale or holding of the Class R  Certificates,  transfers  of those  certificates
will not be  registered  by the  trustee  unless  the  transferor  provides  the
depositor  and the trustee with a  certification  that the  transferee  is not a
ERISA plan investor.

     Any fiduciary of an ERISA plan considering  whether to purchase any offered
certificate  should consult with its own counsel  concerning the impact of ERISA
and the Internal  Revenue Code and the  potential  consequences  to its specific
circumstances, prior to making an investment in the certificates. Moreover, each
ERISA plan  fiduciary  should  determine  whether,  under the general  fiduciary
standards of  investment  procedure  and  diversification,  an investment in the
offered  certificate is appropriate for the ERISA plan,  taking into account the
overall  investment  policy of the ERISA plan and the  composition  of the ERISA
plan's investment portfolio.

     In  addition,  any  fiduciary  or other  investor of ERISA plan assets that
proposes to acquire or hold the offered  certificates on behalf of or with ERISA
plan assets of any ERISA plan should  consult  with its counsel with respect to:
(i) whether the specific and general  conditions and the other  requirements  in
the exemption or any other  exemption  would be satisfied,  or whether any other
prohibited   transaction   exemption   would  apply;   and  (ii)  the  potential
applicability of the general  fiduciary  responsibility  provisions of ERISA and
the prohibited  transaction provisions of ERISA and Section 4975 of the Internal
Revenue  Code to the  proposed  investment.  See "ERISA  Considerations"  in the
prospectus.

     The  sale of any of the  offered  certificates  to an  ERISA  plan is in no
respect a representation by the depositor or the underwriter that the investment
meets all relevant legal  requirements  for investments by ERISA plans generally
or any  particular  ERISA plan, or that such an investment  is  appropriate  for
ERISA plans generally or any particular ERISA plan.



                                      S-49
<PAGE>

                                     ANNEX I

                           ERISA REPRESENTATION LETTER

                                     [date]

--------------------------
--------------------------
--------------------------

Credit Suisse First Boston Mortgage Securities Corp.
11 Madison Avenue
New York, New York 10010
Attention: General Counsel

--------------------------
--------------------------
--------------------------

       Re:  [__________________________]
            Mortgage-Backed Pass-Through Certificates, Series 200_-__, Class M-

Dear Ladies and Gentlemen:

     [__________________________],  (the  "Purchaser")  intends to purchase from
[______], (the "Seller")  $[____________________]  initial Certificate Principal
Balance  of  the  above-referenced  certificates  (the  "Certificates"),  issued
pursuant to the Pooling and  Servicing  Agreement  (the  "Pooling and  Servicing
Agreement"),  dated as of  [_______] 1, 200_,  among Credit  Suisse First Boston
Mortgage     Securities     Corp.,     as    depositor    (the     "Depositor"),
[__________________________].,  as  seller  and  servicer  (the  "Company")  and
[________________________],  as trustee (the "Trustee").  All terms used in this
prospectus  supplement  and not  otherwise  defined  shall have the meanings set
forth in the Pooling and Servicing Agreement.

     The Purchaser hereby  certifies,  represents and warrants to, and covenants
with the Depositor, the Company and the Trustee, either:

          (a) The Purchaser is not an employee  benefit or other plan subject to
     the prohibited  transaction  provisions of the Employee  Retirement  Income
     Security Act of 1974, as amended ("ERISA"), or Section 4975 of the Internal
     Revenue Code of 1986, as amended (a "Plan"), or any other person (including
     an investment  manager, a named fiduciary or a trustee of any Plan) acting,
     directly or  indirectly,  on behalf of or purchasing any  Certificate  with
     "plan  assets" of any Plan  within the  meaning of the U.S.  Department  of
     Labor ("DOL") regulation at 29 C.F.R.ss.2510.3-101; or

          (b) The Purchaser is an insurance  company,  the source of funds to be
     used by which to purchase the Certificates is an "insurance company general
     account"  (as such term is  defined  in



                                      S-50
<PAGE>



     DOL  Prohibited  Transaction  Class  Exemption  ("PTCE")  95-60),  and  the
     conditions  set  forth  in  Sections  I and III of  PTCE  95-60  have  been
     satisfied.

In addition,  the Purchaser  hereby  certifies,  represents and warrants to, and
covenants  with, the  Depositor,  the Company and the Trustee that the Purchaser
will not transfer  the  Certificates  to any Plan or person  unless such Plan or
person meets the requirements set forth in either (a) or (b) above.

                                Very truly yours,




                                By:________________________________



                                Name:______________________________



                                Title:_____________________________







                                      S-51
<PAGE>


                                [_______________]

                                  $___________

                    Mortgage-Backed Pass-Through Certificates

                                 Series 200_-___

                              Prospectus Supplement

                                  CREDIT FIRST

                                  SUISSE BOSTON

                                   Underwriter

You should rely only on the  information  contained or incorporated by reference
in this  prospectus  supplement  and the  accompanying  prospectus.  We have not
authorized anyone to provide you with different information.

We are not  offering  the  certificates  in any  state  where  the  offer is not
permitted.

We represent the accuracy of the information in this  prospectus  supplement and
the accompanying prospectus only as of the dates on their respective covers.

Dealers will be required to deliver a prospectus  supplement and prospectus when
acting as  underwriters of the  certificates  offered hereby and with respect to
their unsold allotments or subscriptions.  In addition,  all dealers selling the
offered  certificates,  whether or not  participating  in this offering,  may be
required   to   deliver   a   prospectus   supplement   and   prospectus   until
[____________________, 200_].

<PAGE>

The  information  in  this  prospectus  supplement  is not  complete  and may be
changed. We may not sell these securities until the registration statement filed
with the Securities Exchange Commission is effective. This prospectus supplement
is not an offer to sell these  securities  and it is not  soliciting an offer to
buy these securities in any state where the offer or sale is not permitted.



                              SUBJECT TO COMPLETION

PRELIMINARY  PROSPECTUS  SUPPLEMENT  DATED  ________________,   200_  Prospectus
supplement dated _________, ___) (to prospectus dated , )

                                    $--------

                                [---------------]
                               Seller and Servicer

                           Credit Suisse First Boston
                            Mortgage Securities Corp.
                                    Depositor

            Mortgage-Backed Pass-Through Certificates, Series 200_-___
                                     Issuer

The Trust

The    trust     will     hold    a    pool    of    [one-    to     four-family
residential][commercial][multifamily] mortgage loans.

Offered Certificates

The trust will issue these classes of  certificates  that are offered under this
prospectus supplement:

o     [_] classes of Class A Certificates

Credit Enhancement

Credit   enhancement  for  all  of  these   certificates  will  be  provided  by
subordinated  certificates,  overcollateralization  represented by the excess of
the balance of the mortgage loans over the balance of the Class A  Certificates,
[and a financial guaranty insurance policy issued by [_____].

You should consider carefully the risk factors beginning on page S-__ in this
prospectus supplement.

Neither  the  Securities  and  Exchange  Commission  nor  any  state  securities
commission has approved or disapproved of the offered certificates or determined
that this prospectus  supplement or the prospectus is accurate or complete.  Any
representation to the contrary is a criminal offense.

The Attorney  General of the State of New York has not passed on or endorsed the
merits of this offering. Any representation to the contrary is unlawful.

[Underwriter] will offer the Class A Certificates subject to availability.

                              [Name of Underwriter]

                                   Underwriter

                                                                Version B
<PAGE>


               Important notice about information presented in this
                     prospectus supplement and the prospectus

     You should rely on the  information  contained in this document or to which
we have referred you to in this  prospectus  supplement.  We have not authorized
anyone to provide you with information that is different. This document may only
be used where it is legal to sell these securities.

     We provide information to you about the offered certificates in two
separate documents that progressively provide more detail:

o    the prospectus,  which provides general information,  some of which may not
     apply to your series of certificates; and

o    this  prospectus  supplement,  which  describes the specific  terms of your
     series of certificates.

     We  include   cross-references  in  this  prospectus   supplement  and  the
accompanying  prospectus  to  captions  in these  materials  where  you can find
further related discussions.

     You can find a listing of the pages  where  capitalized  terms used in this
prospectus  supplement are defined under the caption "Index of Terms"  beginning
on page 126 in the prospectus.

                                TABLE OF CONTENTS

                                  [INSERT HERE]

<PAGE>
                                     SUMMARY

      The  following   summary  is  a  very  general  overview  of  the  offered
certificates  and does  not  contain  all of the  information  that  you  should
consider in making your investment  decision.  To understand all of the terms of
the offered certificates, you should read carefully this entire document and the
prospectus.

Title of securities.......[_____________________ Mortgage-Backed Pass-Through
                          Certificates, Series 200_-__].

Depositor                 Credit Suisse First Boston Mortgage Securities Corp.

Seller                    [______________________________].

Servicer                  [______________________________].

Trustee                   [______________________________].

Financial guaranty insurer[______________________________].

Mortgage Pool             [______][fixed][adjustable]  rate mortgage loans
                          with an aggregate  principal  balance of approximately
                          $[ ] as of the cut-off date, secured by [first/junior]
                          liens   on   [one-   to    four-family    residential]
                          [commercial] [multifamily] properties.

Cut-off date              [                ] 1, [      ].
                           -----------------     -------

Closing date              On or about [               , 200_].
                                       ---------------

Distribution              date.........Beginning  on  [__________,   200_],  and
                          thereafter on the [ ] day of each month, or if the [ ]
                          day is not a business day, on the next business day.

Scheduled                 final distribution date [__________, 20__]. The actual
                          final   distribution   date  could  be   substantially
                          earlier.

Form of offered certificates.  Book-entry.
                          See   "Description  of  the   Certificates--Book-Entry
                          Registration" in this prospectus supplement.

Minimum denominations.....$25,000.


                                      S-3
<PAGE>

                              Offered Certificates

----------------------------------------------------------------------
                             Initial     Initial
                            Certificate  Rating
              Pass-Through   Principal   Initial
    Class         Rate       Balance     (___/___)      Designations
                                          --------
----------------------------------------------------------------------
----------------------------------------------------------------------
Class A Certificates:

----------------------------------------------------------------------
----------------------------------------------------------------------

    [A-1       Adjustable  $               AAA/AAA   Senior/Adjustable
                 Rate        --------                      Rate]

----------------------------------------------------------------------
    [A-2               %   $               AAA/AAA     Senior/Fixed
               --------     --------                      Rate]
----------------------------------------------------------------------
    [A-3               %   $               AAA/AAA   Senior/Lockout/Fixed
               --------     --------                      Rate]

----------------------------------------------------------------------
Total Class
A Certificates:            $[_______]

----------------------------------------------------------------------
                            Non-Offered Certificates

----------------------------------------------------------------------
Class SB and Class R Certificates:

----------------------------------------------------------------------

      SB           NA      $[      ]         NA        Subordinate
                             -------
----------------------------------------------------------------------

      R            NA      $[      ]         NA        Subordinate
                             -------
----------------------------------------------------------------------
Total Class SB and Class R Certificates:  $[   ]

----------------------------------------------------------------------
Total offered and
 non-offered certificates: $[            ]
                            -------------
----------------------------------------------------------------------

Other Information:

Class A-1:

 Adjustable

    Rate:     Initial            Formula            Maximum

 Class A-1:   [    ]%      One-Month LIBOR +   weighted average
              ------       [    ]%             net mortgage
                                               rate on the
                           ------              mortgage loans



                                      S-4
<PAGE>
The Trust

The  depositor  will  establish  a trust  with  respect  to the  Mortgage-Backed
Pass-Through  Certificates,   Series  200_-__  under  a  pooling  and  servicing
agreement.  On the closing date, the depositor will deposit the pool of mortgage
loans described in this prospectus  supplement into the trust.  Each certificate
will represent a partial ownership interest in the trust.

[The trust will also include credit  enhancement for the Class A Certificates in
the form of a financial guaranty insurance policy provided by _____________.]

The Mortgage Pool

The  mortgage   loans  to  be  deposited  into  the  trust  have  the  following
characteristics as of the cut-off date:

[insert table]

[The interest rate on the mortgage loans will adjust on each  adjustment date to
equal the sum of Six-Month LIBOR and the note margin on the mortgage, subject to
a maximum and minimum interest rate.]

For additional  information  regarding the mortgage pool see "Description of the
Mortgage Pool" in this prospectus supplement.

Distributions on the Offered Certificates

Amount available for monthly  distribution.  On each monthly  distribution date,
the trustee will make  distributions  to  investors.  The amount  available  for
distribution will include:

o    collections  of  monthly   payments  on  the  mortgage   loans,   including
     prepayments and other unscheduled collections [plus]

o     [advances for delinquent payments] minus

o    the fees and  expenses  of the  subservicers  and the  servicer,  including
     reimbursement for advances [minus]

o     [the premium paid to the financial guaranty insurer].

See "Description of the Certificates--Glossary of Terms--Available  Distribution
Amount" in this prospectus supplement.

Priority of  distributions.  Distributions on the offered  certificates  will be
made from available amounts as follows:

o    [Payment to servicer for certain unreimbursed advances]

o    Distribution of interest to the Class A Certificates

o    Distributions of principal to the Class A Certificates

o    [Reimbursement  to the financial  guaranty insurer for payments made by the
     financial guaranty insurer to the Class A Certificates]

o    Payments  of  excess  interest  payments  on the  mortgage  loans  to  make
     principal  payments  on the  Class A  Certificates,  until  the  amount  of
     overcollateralization reaches the required amount

o    Distributions of interest in respect of prepayment  interest  shortfalls on
     the Class A Certificates

o    Distribution of remaining funds to the Class SB and Class R Certificates

Interest  distributions.  The amount of  interest  owed to each class of Class A
Certificates on each distribution date will equal:

o    the pass-through rate for that class of certificates multiplied by

o    the  principal  balance  of  that  class  of  certificates  as of  the  day
     immediately prior to the related distribution date multiplied by

o    1/12, in the case of the  fixed-rate  certificates  or the actual number of
     days in the  interest  accrual  period  divided by 360,  in the case of the
     adjustable rate certificates minus


                                      S-5
<PAGE>
o    the share of some types of interest shortfalls allocated to that class.

See "Description of the Certificates--Interest Distributions" in this prospectus
supplement.

Allocations of principal.  Principal  distributions on the certificates  will be
allocated among the various classes of offered certificates as described in this
prospectus  supplement.  Until the required amount of  overcollateralization  is
reached,  all principal payments on the mortgage loans will be distributed among
the  Class A  Certificates,  unless  the  Class  A  Certificates  are no  longer
outstanding.

In addition,  the Class A Certificates will receive a distribution in respect of
principal,  to the extent of any excess interest  payments on the mortgage loans
available   to   cover   losses   and   then   to   increase   the   amount   of
overcollateralization  until the  required  amount of  overcollateralization  is
reached.  In addition,  the Class A Certificates  will receive a distribution of
principal from the financial  guaranty  insurance  policy to cover losses on the
mortgage loans allocated to the Class A Certificates.

See  "Description of the  Certificates--Principal  Distributions  on the Class A
Certificates" in this prospectus supplement.

Credit Enhancement

The credit enhancement for the benefit of the certificates consists of:

Excess  Interest.  Because  more  interest  is  paid by the  mortgagors  than is
necessary  to pay the  interest on the  certificates  each month,  there will be
excess  interest.  Some of this  excess  interest  may be  used to  protect  the
certificates  against some losses, by making an additional  payment of principal
up to the amount of the losses.

Overcollateralization. Any excess interest not used to cover interest shortfalls
or current  period losses will be paid as principal on the Class A  Certificates
to reduce the principal balance of the Class A Certificates  below the aggregate
principal balance of the mortgage loans. The excess amount of the balance of the
mortgage loans represents overcollateralization, which may absorb some losses on
the  mortgage  loans,  if not  covered  by  excess  interest.  If the  level  of
overcollateralization   falls  below  what  is  required,  the  excess  interest
described above will also be paid to the  certificates  as principal.  This will
reduce the  principal  balance of the  certificates  faster  than the  principal
balance   of   the   mortgage    loans   so   that   the   required   level   of
overcollateralization is reached.

See "Description of the  Certificates--Allocation  of Losses;  Subordination" in
this prospectus supplement.

[The Financial Guaranty Insurance Policy

_____________  will issue a financial  guaranty  insurance  policy as a means of
providing additional credit enhancement for the Class A Certificates.  Under the
policy,  the financial  guaranty  insurer will pay an amount that will cover any
shortfalls in amounts available to pay the interest  distribution amount for the
Class A Certificates  on any  distribution  date,  the principal  portion of any
losses on the  mortgage  loans  allocated  to the Class A  Certificates  and any
unpaid  certificate  principal  balance of the Class A Certificates on the final
distribution  date.  The financial  guaranty  insurance  policy will not provide
coverage for prepayment interest shortfalls.]

[See "Description of the Certificates--Financial  Guaranty Insurance Policy" and
"The Financial Guaranty Insurer" in this prospectus supplement.]

[Advances

For any month, if the servicer does not receive the full scheduled  payment on a
mortgage  loan,  the  servicer  will  advance  funds to cover the  amount of the
scheduled  payment that was not made.  However,  the servicer will advance funds
only if it determines that the advance will be recoverable  from future payments
or collections on that mortgage loan.

                                      S-6
<PAGE>

See "Description of the Certificates--Advances" in this prospectus supplement.]

Optional Termination

On any distribution  date on which the principal  balances of the mortgage loans
is less  than  10% of their  principal  balances  as of the  cut-off  date,  the
servicer or the depositor will have the option to:

o    purchase  from the trust all  remaining  mortgage  loans,  causing an early
     retirement of the certificates; or

o    purchase all the certificates.

Under either type of optional purchase,  holders of the outstanding certificates
will receive the outstanding  principal balance of the certificates in full with
accrued  interest.  However,  no purchase of the mortgage loans or  certificates
will be  permitted  if it would  result in a draw  under the  policy  unless the
financial  guaranty insurer  consents to the termination.  In either case, there
will be no  reimbursement  of  principal  reductions  or related  interest  that
resulted from losses allocated to the certificates.

See "Pooling and Servicing Agreement--Termination" in this prospectus supplement
and "Description of the Certificates--Termination" in the prospectus.

Ratings

When issued,  the offered  certificates will receive ratings which are not lower
than those listed in the table on page S-[ ] of this prospectus supplement.  The
ratings on the offered  certificates  address the likelihood that holders of the
offered  certificates will receive all distributions on the underlying  mortgage
loans to which they are entitled.  A security rating is not a recommendation  to
buy,  sell or hold a security and may be changed or withdrawn at any time by the
assigning  rating agency.  The ratings also do not address the rate of principal
prepayments on the mortgage  loans.  For example,  the rate of  prepayments,  if
different than originally anticipated, could adversely affect the yield realized
by holders of the offered certificates.

See "Ratings" in this prospectus supplement.

Legal Investment

When  issued,  the  Class  [  ]  Certificates  will  not  be  "mortgage  related
securities"  for purposes of SMMEA.  You should  consult your legal  advisors in
determining whether and to what extent the offered certificates constitute legal
investments for you.

See "Legal Investment" in this prospectus  supplement for important  information
concerning  possible  restrictions  on ownership of the offered  certificates by
regulated institutions.

ERISA Considerations

The Class A  Certificates  may be  considered  eligible  for purchase by persons
investing  assets of employee benefit plans or individual  retirement  accounts.
Persons  investing  assets of such plans or accounts  should  consult with their
counsel before purchasing the notes.

See "ERISA Considerations" in this prospectus supplement and in the prospectus.

Tax Status

For federal income tax purposes,  the depositor will elect to treat the trust as
[ ] real estate mortgage investment conduit[s]. The certificates, other than the
Class R Certificates, will represent ownership of regular interests in the trust
and will be treated as  representing  ownership  of debt for federal  income tax
purposes.  You will be required to include in income all  interest  and original
issue  discount,  if any, on such  certificates  in accordance  with the accrual
method of accounting regardless of your usual methods of accounting. For federal
income tax purposes,  each of the Class R Certificates will be the sole residual
interest in one of the [ ] real estate mortgage investment conduits.

For  further  information  regarding  the  federal  income tax  consequences  of
investing in the offered certificates, including important information regarding
the tax treatment of the Class R Certificates,  see "Material Federal Income Tax
Consequences" in this prospectus supplement and in the prospectus.


                                      S-7
<PAGE>
                                  RISK FACTORS

      The offered  certificates are not suitable  investments for all investors.
In particular,  you should not purchase any class of offered certificates unless
you understand the  prepayment,  credit,  liquidity and market risks  associated
with that class.

      The offered  certificates  are  complex  securities.  You should  possess,
either alone or together with an investment advisor,  the expertise necessary to
evaluate  the  information  contained  in  this  prospectus  supplement  and the
prospectus in the context of your financial situation and tolerance for risk.

      You should carefully  consider,  among other things, the following factors
in connection with the purchase of the offered certificates:

Risk of Loss

The return on your   Losses on the mortgage loans may occur due to a
certificates may be  wide variety of causes, including a decline in
affected by losses   real estate values, and adverse changes in the
on the mortgage      borrower's financial condition.  A decline in
loans, which could   real estate values or economic conditions
occur due to a       nationally or in the regions where the
variety of causes,   mortgaged properties are located may increase
and are more likely  the risk of losses on the mortgage loans.
because a            [Special risks for specific loan types, such as
significant number   negative amortization or escalating payments,
of mortgage loans    will be disclosed if material to an individual
are secured by       offering.]
junior liens on the
mortgaged property.  [______% of the mortgage loans included in the
                     mortgage loan pool are secured by second
                     mortgages or deeds of trust.  Proceeds from
                     liquidation of the property will be available
                     to satisfy the mortgage loans only if the
                     claims of any senior mortgages have been
                     satisfied in full. When it is uneconomical to
                     foreclose on the mortgaged property or engage
                     in other loss mitigation procedures, the
                     servicer may write off the entire outstanding
                     balance of the mortgage loan as a bad debt. The
                     foregoing risks are particularly applicable to
                     mortgage loans secured by second liens that
                     have high combined loan-to-value ratios or low
                     junior ratios because it is comparatively more
                     likely that the servicer would determine
                     foreclosure to be uneconomical. As of the
                     cut-off date, the weighted average combined
                     loan-to-value ratio of the mortgage loans is
                     ______%, and approximately ______% of the
                     mortgage loans will have combined loan-to-value
                     ratios in excess of ______%.]

[The underwriting    [The underwriting standards under which the
standards for the    junior mortgage loans were underwritten are
junior mortgage      analogous to credit lending, rather than
loans create         mortgage lending, since underwriting decisions
greater risks to     were based primarily on the borrower's credit
you, compared to     history and capacity to repay rather than on
those for first      the value of the collateral upon foreclosure.
lien loans.]         The underwriting standards allow loans to be


                                      S-8
<PAGE>

                     approved with combined  loan-to-value ratios of
                     up to 125%.  See   "Description   of  the  Mortgage
                     Pool--Underwriting Standards" in this  prospectus
                     supplement.  Because of the relatively  high  combined
                     loan-to-value  ratios  of  the mortgage  loans and the
                     fact that a  significant  number of the mortgage  loans
                     are secured by junior liens,  losses on the mortgage loans
                     will likely  be  higher  than  on traditional first
                     lien mortgage loans.]

[Origination         [[       ]% of the mortgage loans included in
disclosure           the mortgage pool are subject to special rules,
practices for the    disclosure requirements and other regulatory
mortgage loans       provisions because they are high cost loans.
could create         Purchasers or assignees of these high cost
liabilities that     loans, could be exposed to all claims and
may affect the       defenses that the mortgagors could assert
return on your       against the originators of the mortgage loans.
certificates.]       Remedies available to the mortgagor include
                     monetary  penalties,  as well as  recission  rights
                     if the appropriate  disclosures  were not given as
                     required.  See "Certain   Legal   Aspects  of  the
                     Mortgage   Loans  and Contracts--The Mortgage Loans--
                     Anti-Deficiency  Legislation and Other Limitations on
                     Lenders" in the prospectus].

The return on your   One risk of investing in mortgage-backed
certificates may be  securities is created by any concentration of
particularly         the related properties in one or more
sensitive to         geographic regions.  Approximately __% of
changes in real      the cut-off date principal balance of the
estate markets in    mortgage loans are located in [California].  If
specific areas.      the regional economy or housing market weakens
                     in [California], or in any other region having
                     a significant concentration of properties
                     underlying the mortgage loans, the mortgage
                     loans in that region may experience high rates
                     of loss and delinquency, resulting in losses to
                     Class A Certificateholders.  A region's
                     economic condition and housing market may be
                     adversely affected by a variety of events,
                     including natural disasters such as
                     earthquakes, hurricanes, floods and eruptions,
                     and civil disturbances, including riots.
                     [Concentrations material to an individual
                     offering will be disclosed.]

Some of the          Approximately ___% of the mortgage loans (based
mortgage loans       on principal balances) are not fully amortizing
provide for large    over their terms to maturity and, thus, will
payments at          require substantial principal payments (i.e., a
maturity.            balloon amount) at their stated maturity.
                     Mortgage  loans which require  payment of a balloon  amount
                     involve a greater  degree of risk  because the ability of a
                     mortgagor  to pay a balloon  amount  typically  will depend
                     upon the mortgagor's ability either to timely refinance the
                     loan or to sell the related mortgaged property.

                     See  "Description  of the Mortgage Pool" in this prospectus
                     supplement.

                                      S-9
<PAGE>

The return on your   The only credit enhancement for the Class A
certificates will    Certificates will be:
be reduced if        o  the excess interest payments on the
losses exceed the       mortgage loans;
credit enhancement   o  overcollateralization represented by the
available to your       excess of the balance of the mortgage loans
certificates.           over the balance of the Class A
                        Certificates; and
                     [o a financial guaranty insurance policy
                        issued by ____________.]


The return on your   Mortgage loans similar to those included in the
certificates may be  mortgage loan pool have been originated for a
reduced in an        limited period of time.  During this time,
economic downturn.   economic conditions nationally and in most
                     regions of the country have been generally
                     favorable.  However, a deterioration in
                     economic conditions could adversely affect the
                     ability and willingness of mortgagors to repay
                     their loans.  No prediction can be made as to
                     the effect of an economic downturn on the rate
                     of delinquencies and losses on the mortgage
                     loans.

[The reloading of    [With respect to mortgage loans which were used
debt could increase  for debt consolidation, there can be no
your risk.]          assurance that the borrower will not incur
                     further debt.  This reloading of debt could
                     impair the ability of borrowers to service
                     their debts, which in turn could result in
                     higher rates of delinquency and loss on the
                     mortgage loans.]

The value of your    If the performance of the mortgage loans is
certificates may be  substantially worse than assumed by the rating
reduced if losses    agencies, the ratings of any class of the
are higher than      certificates may be lowered in the future.
expected             This would probably reduce the value of those
                     certificates.  Neither the depositor, the
                     servicer nor any other entity will have any
                     obligation to supplement any credit
                     enhancement, or to take any other action to
                     maintain any rating of the certificates.

                     See "Summary-Credit Enhancement" and
                     "Description of the Certificates-Allocation of
                     Losses; Subordination" in this prospectus
                     supplement.


Adverse              The trust could become liable for an
environmental        environmental condition at a mortgaged
conditions on the    property. Any potential liability could reduce
mortgaged            or delay payments to certificateholders.
property may
reduce or delay      "Phase I" environmental assessments have been
your payments        performed on all but [  ] of the mortgaged
                     properties,  which  constitutes  [ ]% of the  initial  pool
                     balance.  None of the  environmental  assessments  revealed
                     material adverse environmental  conditions or circumstances
                     affecting any mortgaged property, except those cases:

                     o     in which the adverse conditions were
                        remediated or abated before the date of
                        issuance of the certificates;

                                      S-10
<PAGE>

                     o  in which an operations and maintenance
                        plan or periodic monitoring of the mortgaged
                        property or nearby properties was
                        recommended;

                     o  involving  a  leaking   underground   storage   tank  or
                        groundwater  contamination at a nearby property that had
                        not yet materially  affected the mortgaged  property and
                        for which a responsible party either has been identified
                        under applicable law or was then conducting  remediation
                        of the related condition;

                     o  in which  groundwater,  soil or other  contamination was
                        identified   or  suspected,   and  an  escrow   reserve,
                        indemnity,  environmental  insurance or other collateral
                        was provided to cover the  estimated  costs of continued
                        monitoring, investigation, testing or remediation;

                     o  involving radon; or

                     o  in which the related borrower has agreed to seek a "case
                        closed"   status  for  the  issue  from  the  applicable
                        governmental agency.

                     Some of the mortgage  loans carry  environmental  insurance
                     which may provide  coverage in an amount  equal to all or a
                     portion  of the  principal  amount of the loan or an amount
                     necessary  to provide  for  certain  remediation  expenses.
                     There  can  be no  assurance,  however,  that  should  such
                     coverage  be  needed,   coverage   would  be  available  or
                     uncontested, that the terms and conditions of such coverage
                     would be met,  that coverage  would be  sufficient  for the
                     claims at issue or that  coverage  would not be  subject to
                     certain deductibles.

                     To  decrease  the  likelihood  of  environmental  liability
                     against  the trust,  the  servicer  is required to obtain a
                     satisfactory  environmental  site assessment of a mortgaged
                     property and see that any required remedial action is taken
                     before acquiring title or assuming its operation.

                     See   "Description   of  the  Mortgage   Pool--Underwriting
                     Standards--Environmental  Assessments"  in this  prospectus
                     supplement       and        "Description       of       the
                     Certificates--Enforcement     of    Due-on-Sale    Clauses;
                     Realization   Upon   Defaulted   Mortgage   Loans,"   "Risk
                     Factors--Environmental conditions may subject the mortgaged
                     property to liens or impose  costs on the  property  owner"
                     and  "Certain  Legal  Aspects  of the  Mortgage  Loans  and
                     Contracts--Environmental Legislation" in the prospectus.

                                      S-11
<PAGE>
Loss Mitigation
Practices
The release of a     [The servicer may use a wide variety of
lien may increase    practices to limit losses on the mortgage
your risk.           loans.  The pooling and servicing agreement
                     permits  the  servicer  to  release  the lien
                     on a  limited number of mortgaged properties securing
                     the mortgage loans, if the  mortgage  loan is current in
                     payment.  See "Pooling and  Servicing  Agreement--
                     Refinancing  of Senior Lien" and "--Collection and
                     Liquidation  Practices;  Loss Mitigation"
                     in this prospectus supplement.]

Limited Obligations
Payments on the      The certificates represent interests only in
mortgage loans,      the Mortgage-Backed Pass-Through Certificates,
together with the    Series 200_-___ Trust.  Credit enhancement
financial guaranty   includes overcollateralization, excess
insurance policy,    interest, [and a financial guaranty insurance
are the primary      policy]. The certificates do not represent an
source of payments   interest in or obligation of the depositor, the
on your              servicer or any of their affiliates. None of
certificates.        the depositor, the servicer or any of their
                     affiliates   will  have  any   obligation   to  replace  or
                     supplement  the  credit  enhancement,  or to take any other
                     action  to  maintain  any  rating of the  certificates.  If
                     proceeds   from   the   assets   of   the   Mortgage-Backed
                     Pass-Through  Certificates,  Series  200_-___ Trust are not
                     sufficient  to make all  payments  provided  for  under the
                     pooling and  servicing  agreement,  investors  will have no
                     recourse  to  the  depositor,  the  servicer  or any of its
                     affiliates.

Liquidity Risks
You may have to      A secondary market for your certificates may
hold your            not develop.  Even if a secondary market does
certificates to      develop, it may not continue or it may be
maturity if their    illiquid.  Neither the underwriter nor any
marketability is     other person will have any obligation to make a
limited.             secondary market in your certificates.
                     Illiquidity  means  you may not be able to find a buyer  to
                     buy your  securities  readily or at prices that will enable
                     you to  realize a  desired  yield.  Illiquidity  can have a
                     severe   adverse   effect  on  the  market  value  of  your
                     certificates.

                     Any   class  of   offered   certificates   may   experience
                     illiquidity,  although typically illiquidity is more likely
                     for classes that are  especially  sensitive to  prepayment,
                     credit or interest rate risk, or that have been  structured
                     to meet the investment  requirements of limited  categories
                     of investors.

                                      S-12
<PAGE>

Special Yield and
Prepayment
Considerations


The yield to         The yield to maturity on each class of offered
maturity on your     certificates will depend on a variety of
certificates will    factors, including:
vary depending on
the rate of          o    the rate and timing of principal payments
prepayments.             on the mortgage loans, including
                         prepayments, defaults and liquidations, and
                         repurchases due to breaches of
                         representations or warranties;

                     o   the pass-through rate for that class;

                     o   interest shortfalls due to mortgagor
                         prepayments; and

                     o   the purchase price of that class.

                     In general, if you purchase a certificate at a price higher
                     than  its  outstanding   principal  balance  and  principal
                     distributions  on your  certificate  occur  faster than you
                     assumed at the time of  purchase,  your yield will be lower
                     than  you  anticipated.   Conversely,  if  you  purchase  a
                     certificate at a price lower than its outstanding principal
                     balance  and  principal  distributions  on that class occur
                     more slowly than you assumed at the time of purchase,  your
                     yield will be lower than you anticipated.

The rate of          Because mortgagors can typically prepay their
prepayments on the   mortgage loans at any time, the rate and timing
mortgage loans will  of principal distributions on the offered
vary depending on    certificates are highly uncertain.  Typically,
future market        when market interest rates increase, borrowers
conditions, and      are less likely to prepay their mortgage
other factors.       loans.  This could result in a slower return of
                     principal to you at a time when you might have
                     been able to reinvest your funds at a higher
                     rate of interest than the pass-through rate on
                     your class of certificates. On the other hand,
                     when market interest rates decrease, borrowers
                     are typically more likely to prepay their
                     mortgage loans.  This could result in a faster
                     return of principal to you at a time when you
                     might not be able to reinvest your funds at an
                     interest rate as high as the pass-through rate
                     on your class of certificates.


                                      S-13
<PAGE>

                     [Approximately  ___%  of  the  mortgage  loans  permit  the
                     mortgagor  to convert the  adjustable  rate on the mortgage
                     loan to a fixed rate. Upon the conversion,  the subservicer
                     or the servicer will  repurchase the mortgage  loan,  which
                     will  have  the  same  effect  as  a  prepayment  in  full.
                     Mortgagors may be more likely to exercise their  conversion
                     options when interest  rates are rising.  As a result,  the
                     certificates may receive greater prepayments at a time when
                     prepayments would not normally be expected.]

                     See "Maturity and Prepayment Considerations" in

                     the prospectus.

                     [______%  of the  mortgage  loans  provide for payment of a
                     prepayment  charge.  Prepayment charges may reduce the rate
                     of  prepayment  on the mortgage  loans until the end of the
                     period  during which such  prepayment  charges  apply.  See
                     "Description   of   the   Mortgage    Pool--Mortgage   Pool
                     Characteristics"   in  this   prospectus   supplement   and
                     "Maturity   and   Prepayment    Considerations"    in   the
                     prospectus.]

The yield on your    The offered certificates of each class have
certificates will    different yield considerations and different
be affected by the   sensitivities to the rate and timing of
specific             principal distributions.  The following is a
characteristics      general discussion of yield considerations and
that apply to that   prepayment sensitivities of each class.
class, discussed
below.               See "Certain Yield and Prepayment
                     Considerations" in this prospectus supplement.

   Class A           The Class A Certificates are subject to various
Certificates         priorities for payment of principal.
                     Distributions of principal on the Class A
                     Certificates with an earlier priority of
                     payment will be affected by the rates of
                     prepayment of the mortgage loans early in the
                     life of the mortgage pool.  Those classes of
                     Class A Certificates with a later priority of
                     payment will be affected by the rates of
                     prepayment of the mortgage loans experienced
                     both before and after the commencement of
                     principal distributions on those classes.

                     See    "Description    of    the    Certificates--Principal
                     Distributions   on  the  Class  A  Certificates"   in  this
                     prospectus supplement.

   [Class A-1        The interest rate on the Class A-1 Certificates
   Certificates      will vary with One-Month LIBOR.   Therefore,
                     the yield to investors on the Class A-1  Certificates  will
                     be  sensitive  to  fluctuations  in  the  level  of  LIBOR.
                     Investors   should  consider  whether  this  volatility  is
                     suitable to their investment needs.]

                     The Class A-1  Certificates may not always receive interest
                     at a rate  equal to  One-Month  LIBOR  plus the  applicable
                     margin.  If the weighted  average of the net mortgage rates


                                      S-14
<PAGE>

                     on the mortgage loans is less than One-Month LIBOR plus the
                     applicable  margin,  the  interest  rate on the  Class  A-1
                     Certificates will be reduced to that weighted average rate.
                     Thus, the yield to investors in the Class A-1  Certificates
                     will be sensitive to fluctuations in the level of One-Month
                     LIBOR and may be adversely  affected by the  application of
                     the  weighted  average  net  mortgage  rate on the  related
                     mortgage  loans . The prepayment of the mortgage loans with
                     higher net  mortgage  rates may result in a lower  weighted
                     average net mortgage rate. If on any distribution  date the
                     application  of the  weighted  average  net  mortgage  rate
                     results in an interest  payment lower than One-Month  LIBOR
                     plus the  applicable  margin on the Class A-1  Certificates
                     during the related  interest  accrual period,  the value of
                     those   certificates  may  be  temporarily  or  permanently
                     reduced.  In a rising interest rate environment,  the Class
                     A-1  Certificates  may  receive  interest  at the  weighted
                     average net mortgage rate for a protracted  period of time.
                     In  addition,  in such a  situation,  there  would  be less
                     excess  interest  payments on the  mortgage  loans to cover
                     losses and to create additional overcollateralization.

   [Class A-3       It is not expected that the Class A-3
   Certificates     Certificates will receive any distributions of
                    principal until the  distribution  date  _______________  in
                    _______________,  Until the distribution date in , the Class
                    A-3   Certificates   may  receive  a  portion  of  principal
                    prepayments  that is  smaller  than  its pro  rata  share of
                    principal prepayments.]

[Risks Particular
to Multifamily
Properties:]

[Reductions in       [  ] mortgaged properties, securing mortgage
occupancy and        loans that represent [  ]% of the initial pool
rent levels on       balance, are multifamily rental properties. A
multifamily          decrease in occupancy or rent levels could
properties could     result in realized losses on the mortgage
adversely affect     loans. Occupancy and rent levels on multifamily
their value and      properties may be adversely affected by:
cash flow
                     o  local,  regional or national economic conditions,  which
                        may limit the  amount  of rent that can be  charged  for
                        rental  units or result in a  reduction  in timely  rent
                        payments;

                     o  construction of additional housing units
                        in the same market;

                                      S-15
<PAGE>

                     o  local military base or
                        industrial/business closings;

                     o  developments at local colleges and
                        universities;

                     o  national, regional and local politics,
                        including current or future rent
                        stabilization and rent control laws and
                        agreements;

                     o  trends in the senior housing market;

                     o  the level of mortgage interest rates,
                        which may encourage tenants in multifamily
                        rental properties to purchase housing; and

                     o  lack of amenities, unattractive physical
                        attributes or bad reputation of the
                        mortgaged property.]

[Student housing     [  ] of the mortgaged properties, securing
concentrations       mortgage loans that represent [  ]% of the
may affect cash      initial pool balance, are student housing or
flow of a            have high concentrations of student tenants. In
multifamily          addition to other multifamily real estate
property             risks, student housing risks include:

                     o  increased  influence of economic,  social,  governmental
                        and demographic  factors as they relate to the number of
                        students  attending colleges and universities in need of
                        student housing;

                     o     reliance upon the well-being of the
                        colleges or universities to which the
                        facilities relate;

                     o  student  housing  facilities  are subject to competition
                        from  colleges  and   universities   as  well  as  other
                        providers of student  housing and  physical  layouts may
                        not be readily  convertible to  traditional  multifamily
                        use;

                     o  maintenance and insurance costs of
                        student housing can exceed the typical costs
                        of other multifamily housing;

                     o  tenants or sub-tenants are individuals
                        who often have little or no credit history,
                        may not have parental guarantees and are not
                        tied to the local community; and

                     o  turnover of tenants or  sub-tenants  can be  significant
                        and  student  housing  is less  utilized  or  subject to
                        reduced rents during summer months.

                     [ ] mortgaged properties, consisting principally of student
                     housing, securing mortgage loans that represent [ ]% of the
                     initial  pool balance are  primarily  leased to one tenant,
                     which  increases the adverse  effect of a tenant default or
                     lease   termination.

                                      S-16
<PAGE>

                     See  "Description  of  the  Mortgage
                     Pool--Significant  Mortgage  Loans--[ ]" in this prospectus
                     supplement  and  "--Losses  may be caused by tenant  credit
                     risk on the mortgage loans" below.]

[Restrictions        Tax credit, and city, state and federal housing
imposed on           subsidies or similar programs may apply to
multifamily          multifamily properties. The limitations and
properties by        restrictions imposed by these programs could
government           result in realized losses on the mortgage loans
programs could       that may be allocated to your class of
also adversely       certificates. These programs may include:
affect their
value and cash       o     rent limitations that could adversely
flow                    affect the ability of borrowers to increase
                        rents to maintain the condition of their
                        mortgaged properties and satisfy operating
                        expenses; and

                     o  tenant income restrictions that may reduce the number of
                        eligible  tenants  in  those  mortgaged  properties  and
                        result in a reduction in occupancy rates.

                     The  differences  in rents between  subsidized or supported
                     properties and other  multifamily  rental properties in the
                     same area may not be a sufficient  economic  incentive  for
                     some  eligible   tenants  to  reside  at  a  subsidized  or
                     supported property that may have fewer amenities or be less
                     attractive as a residence.]

[Risks Particular
to Office
Properties:]

[Economic decline    [  ] mortgaged properties, securing mortgage
in tenant            loans that represent [  ]% of the initial pool
businesses or        balance, are office properties.
changes in
demographic          Economic decline in the businesses operated by
conditions could     the tenants of office properties may increase
adversely affect     the likelihood that a tenant may be unable to
the value and        pay its rent, which could result in realized
cash flow from       losses on the mortgage loans. A number of
office properties    economic and demographic factors may adversely
                     affect the value of office properties,
                     including:

                     o  the quality of the tenants in the
                        building;

                     o  the physical attributes of the building
                        in relation to competing buildings;

                     o  access to transportation;

                     o  the availability of tax benefits;

                     o  the strength and stability of businesses
                        operated by the tenant or tenants;

                                      S-17
<PAGE>

                     o  the desirability of the location for
                        business; and

                     o  the cost of  refitting  office  space for a new  tenant,
                        which is  often  significantly  higher  than the cost of
                        refitting other types of properties for new tenants.

                     These risks may be increased if revenue depends on a single
                     tenant,  if the property is owner-occupied or if there is a
                     significant   concentration  of  tenants  in  a  particular
                     business  or  industry.  [ ] of  the  mortgaged  properties
                     representing  [ ]% of the initial  pool balance are secured
                     by single tenant office  properties.  For a description  of
                     risk  factors  relating to single  tenant  properties,  see
                     "--Losses  may be  caused  by  tenant  credit  risk  on the
                     mortgage loans" below.]

[Competition with    Competition from other office properties in the
other office         same market could decrease occupancy or rental
properties could     rates at office properties. Decreased occupancy
also adversely       could result in realized losses on the mortgage
affect the value     loans. Competition is affected by a property's
and cash flow        age, condition, design, such as floor sizes and
from office          layout, location, access to transportation and
properties           ability to offer amenities to its tenants,
                     including  sophisticated  building  systems,  such as fiber
                     optic  cables,   satellite  communications  or  other  base
                     building technological features.]

[Risks Particular
to Retail
Properties:]

[A significant       [  ] mortgaged properties, securing mortgage
tenant ceasing to    loans that represent [  ]% of the initial pool
operate at a         balance, are retail properties.
retail property
could adversely      A significant tenant ceasing to do business at
affect its value     a retail property could result in realized
and cash flow        losses on the mortgage loans. The loss of a
                     significant  tenant  may be  the  result  of  the  tenant's
                     voluntary  decision not to renew a lease or to terminate it
                     in accordance with its terms,  the bankruptcy or insolvency
                     of the tenant,  the tenant's general  cessation of business
                     activities or for other reasons. There is no guarantee that
                     any tenants  will  continue to occupy  space in the related
                     retail property.

                     Some component of the total rent paid by retail tenants may
                     be tied to a percentage  of gross sales.  As a result,  the
                     correlation  between the success of tenant  businesses  and
                     property  value is more direct for retail  properties  than
                     other types of commercial property.  Significant tenants or
                     anchor tenants at a retail  property play an important part
                     in generating customer traffic and making a retail property
                     a desirable  location for other  tenants at that  property.
                     Some  tenants  at  retail  properties  may be  entitled  to
                     terminate  their  leases or pay

                                      S-18
<PAGE>

                    reduced rent if an anchor tenant  ceases  operations at that
                    property.  If anchor stores in a mortgaged  property were to
                    close,  the borrower  may be unable to replace  those anchor
                    tenants in a timely  manner on similar  terms,  and customer
                    traffic  may be  reduced,  possibly  impacting  sales at the
                    remaining  retail  tenants.  A  retail  "anchor  tenant"  is
                    typically  understood  to be a tenant that is larger in size
                    and  is  important  in  attracting  customers  to  a  retail
                    property,  whether  or not it is  located  on the  mortgaged
                    property.

                     These risks may be increased  when the property is a single
                     tenant   property.   [  ]  of  the   mortgaged   properties
                     representing  [ ]% of the initial  pool  balance are single
                     tenant retail properties. For a description of risk factors
                     relating to single tenant properties,  see "--Losses may be
                     caused by tenant credit risk on the mortgage loans" below.]

[Retail              Changes in consumer preferences and market
properties are       demographics may adversely affect the value and
vulnerable to        cash flow from retail properties, particularly
changes in           properties with a specialty retail focus. You
consumer             may experience losses on the certificates due
preferences          to these changes. Retail properties are
                     particularly vulnerable to changes in consumer
                     preferences and market demographics that may
                     relate to:

                     o     changes in consumer spending patterns;

                     o     local competitive conditions, such as an
                        increased supply of retail space or the
                        construction of other shopping centers;

                     o     the attractiveness of the properties and
                        the surrounding neighborhood to tenants and
                        their customers;

                     o     the public perception of the safety of
                        the neighborhood; and

                     o     the need to make major repairs or
                        improvements to satisfy major tenants.]
[Competition from    Retail properties face competition from sources
alternative          outside their local real estate market.
retail               Catalogue retailers, home shopping networks,
distribution         the internet, telemarketing and outlet centers
channels may         all compete with more traditional retail
adversely affect     properties for consumer dollars. These
the value and        alternative retail outlets are often
cash flow from       characterized by lower operating costs.
retail properties    Continued growth of these alternative retail
                     outlets could adversely affect the rents collectible at the
                     retail  properties which secure mortgage loans in the trust
                     and result in realized losses on the mortgage loans.]

                                      S-19
<PAGE>

[Risks Particular
to Industrial
Properties:]

[Changes in          [  ] mortgaged properties, securing mortgage
economic and         loans that represent [  ]% of the initial pool
demographic          balance, are industrial properties. Economic
conditions could     decline in the businesses operated by the
adversely affect     tenants of industrial properties could result
the value and        in realized losses on the mortgage loans that
cash flow from       may be allocated to your class of certificates.
industrial
properties           These risks are similar to those of tenants of
                     office properties.  Industrial properties,  however, may be
                     more  dependent on a single  tenant.  [ ] of the  mortgaged
                     properties  representing  [ ]% of the initial  pool balance
                     are secured by single tenant industrial  properties.  For a
                     description of risk factors relating to office  properties,
                     see "--Economic  decline in tenant businesses or changes in
                     demographic conditions could adversely affect the value and
                     cash flow from office properties," and for a description of
                     risk  factors  relating to single  tenant  properties,  see
                     "--Losses  may be  caused  by  tenant  credit  risk  on the
                     mortgage loans" below.]

[Restrictions        Site characteristics at industrial properties
imposed by site      may impose restrictions that could cause
characteristics      realized losses on the mortgage loans that may
could also           be allocated to your class of certificates.
adversely affect     Site characteristics which affect the value of
the value and        an industrial property include:
cash flow from
industrial           o     clear heights;
properties
                     o     column spacing;

                     o     number of bays and bay depths;

                     o     truck turning radius;

                     o     divisibility;

                     o     zoning restrictions; and

                     o     overall functionality and accessibility.

                     An  industrial  property  requires  availability  of  labor
                     sources,  proximity to supply  sources and  customers,  and
                     accessibility  to rail  lines,  major  roadways  and  other
                     distribution channels.]

[Restrictions        Properties used for many industrial purposes
imposed by           are more prone to environmental concerns than
increased            other property types. For a description of risk
environmental        factors relating to environmental risks, see
risks could also     "--Adverse environmental conditions on the
adversely affect     mortgaged property may reduce or delay your
the value and        payments" above.]

                                      S-20
<PAGE>

cash flow from
industrial
properties

[Risks Particular
to Hospitality
Properties:]

[Reductions in       [  ] mortgaged properties, securing mortgage
room rates or        loans that represent [  ]% of the initial pool
occupancy at a       balance, are hospitality properties. A decrease
hospitality          in room rates or occupancy at hospitality
property could       properties could result in realized losses on
adversely affect     the mortgage loans that may be allocated to
its value and        your class of certificates. Room rates and
cash flow            occupancy levels may depend upon the following
                     factors.

                     o  The  proximity  of  a  hospitality   property  to  major
                        population centers or attractions.

                     o  Adverse local,  regional or national economic conditions
                        or the construction of competing hospitality properties.
                        Because hospitality  property rooms typically are rented
                        for  short   periods  of  time,   the   performance   of
                        hospitality  properties  tends to be affected by adverse
                        economic  conditions and  competition  more quickly than
                        other commercial properties.

                     o  A hospitality  property's  ability to attract  customers
                        and a portion of its revenues may depend on its having a
                        liquor license. A liquor license may not be transferable
                        if a foreclosure on the mortgaged property occurs.

                     o  In many  parts of the  country  the  hotel  and  lodging
                        industry is seasonal in nature.  Seasonality  will cause
                        periodic   fluctuations  in  room  and  other  revenues,
                        occupancy levels, room rates and operating expenses.

                     o  The  viability  of  hospitality   properties   that  are
                        franchisees of national or regional hotel chains depends
                        in large part on the  continued  existence and financial
                        strength of the franchisor. The public perception of the
                        franchise service mark and the duration of the franchise
                        license agreement are also important.  If the franchisee
                        defaults  on its debt,  the trustee may be unable to use
                        the  franchise   license  without  the  consent  of  the
                        franchisor due to restrictions  on transfers  imposed by
                        the franchise license agreements.]

[Risks Associated
with Tenants

                                      S-21
<PAGE>

Generally:]

[Losses may be       Cash flow or value of a mortgaged property
caused by tenant     could be reduced if tenants are unable to meet
credit risk on       their lease obligations or become insolvent.
the mortgage loans   The inability of tenants to meet their
                     obligations may result in realized losses on
                     the mortgage loans that may be allocated to
                     your class of certificates.


                     o  If tenant  sales in  retail  properties  decline,  rents
                        based on sales will  decline.  Tenants  may be unable to
                        pay their rent or other  occupancy  costs as a result of
                        poor cash flow due to sales  declines  or the  amount of
                        the gross sales component of rent will be reduced.  If a
                        tenant defaults,  the borrower may experience delays and
                        costs in enforcing the lessor's rights.

                     o  If a tenant were to become  insolvent and subject to any
                        bankruptcy  or similar  law,  the  collection  of rental
                        payments  could be  interrupted  and  foreclosure on the
                        mortgaged  property  made more  difficult.  See "Certain
                        Legal    Aspects    of   the    Mortgage    Loans    and
                        Contracts--Anti-Deficiency    Legislation    and   Other
                        Limitations on Lenders" in the prospectus.

                     These risks may be increased  when the property is a single
                     tenant  property,   is   owner-occupied  or  is  leased  to
                     relatively  few  tenants.  [ ]of the  mortgaged  properties
                     representing  [ ]% of the initial  pool balance are secured
                     by single tenant properties.]

[Losses may be      The income from and market value of retail,
caused by the       office, multifamily and industrial properties
expiration of or    would decline if space leases expired or
tenant defaults     terminated, or tenants defaulted and the
on leases           borrowers were unable to renew the leases or
                    relet the space on comparable terms.

                   If  space  is  not  renewed  at all  or is  not  renewed  on
                   favorable terms, the trust may experience realized losses on
                   the  mortgage  loans that may be  allocated to your class of
                   certificates.

                   Even if borrowers  successfully  relet vacated  space,  the
                   costs   associated   with   reletting,   including   tenant
                   improvements, leasing commissions and free rent, can exceed
                   the amount of any reserves  maintained for that purpose and
                   reduce cash flow from the  mortgaged  properties.  Although
                   many of the mortgage loans require the borrower to maintain
                   escrows for leasing  expenses,  there is no guarantee  that
                   these reserves will be sufficient.]

[Tenant            The bankruptcy or insolvency of a major tenant,
bankruptcy         such as an anchor tenant, or a number of
entails risks      smaller tenants, may adversely affect the
                   income  produced  by a  mortgaged  property  and  result in


                                      S-22
<PAGE>

                     realized losses on the mortgage loans that may be allocated
                     to your class of certificates. Under the federal bankruptcy
                     code, a tenant has the option of assuming or rejecting  any
                     unexpired  lease.  If the tenant  rejects  the  lease,  the
                     landlord's claim for breach of the lease would be a general
                     unsecured  claim  against  the  tenant,  unless  collateral
                     secures the claim. The claim would be limited to the unpaid
                     rent  reserved  under the lease for the periods  before the
                     bankruptcy  petition  or  earlier  surrender  of the leased
                     premises  that are  unrelated  to the  rejection,  plus the
                     greater of one year's rent or 15% of the remaining reserved
                     rent,  but  not  more  than  three  years'  rent.  Even  if
                     provisions  in  the  lease   prohibit   assignment,   in  a
                     bankruptcy,  the  tenant  may  assign  the lease to another
                     entity that could be less  creditworthy than the tenant may
                     have been at the time of  origination of the mortgage loan.
                     See  "Certain  Legal  Aspects  of the  Mortgage  Loans  and
                     Contracts" in the prospectus.]

[Losses may be      [Losses may be realized on the mortgage  loans
caused by           that may be allocated to your class of  inadequate.
inadequate          certificates if property management is property inadequate.
property            The  property  manager  is  responsible for the
management          following activities:

                     o  responding to changes in the local market;

                     o  planning and implementing the rental
                        structure, including establishing levels of
                        rent payments; and

                     o  ensuring that maintenance and capital
                        improvements are carried out in a timely
                        fashion.

                     Sound  property   management   controls   costs,   provides
                     appropriate   service   to   tenants   and   ensures   that
                     improvements are maintained.  Sound property management can
                     also maintain cash flow, reduce vacancy, leasing and repair
                     costs and  preserve  building  value.  Property  management
                     errors can impair the long-term viability of a property.]

[Conflicts of        Managers  of  mortgaged  properties  and the
interests between    borrowers  may  experience  conflicts of
property managers    interest in the management or ownership of mortgaged
and owners           properties.  These  conflicts of interest could result in
losses               losses result in realized losses on the mortgage loans
                     that may be allocated to your class of
                     certificates. These conflicts of interests may
                     exist because:

                     o  the mortgaged properties may be managed
                        by property managers affiliated with the
                        borrowers;

                     o  the mortgaged properties may be managed
                        by property managers who also manage other
                        properties that compete with the mortgaged
                        properties; and

                                      S-23
<PAGE>

                     o  affiliates  of the  managers  or the  borrowers,  or the
                        managers or the  borrowers  or both,  may also own other
                        properties, including competing properties.]

[Limited alternative[  ]  mortgaged   properties,   securing  mortgage
uses of other       loans that represent approximately [ ]% of the initial
property types      pool balance,  are "special purpose" properties
affect their        that have limited alternative uses.   "Special
value and cash
flow
                    "Special  purpose"  limitations  could  result  in cash flow
                    realized  losses on the mortgage loans that maybe  allocated
                    to your class of certificates. Mortgage loans
                    secured  by  other  property  types,   including  mixed  use
                    properties,  may pose  risks not  associated  with  mortgage
                    loans  secured by liens on other  types of  income-producing
                    real estate.]

[Losses may          An appraisal was conducted for each mortgaged
result if the        property in connection with its origination,
servicer is          and the loan-to-value ratios as of the cut-off
unable to sell a     date referred to in this prospectus supplement
mortgaged            are based on the appraisals. If the servicer
property securing    forecloses on a mortgaged property and realizes
a defaulted          liquidation proceeds that are less than the
mortgage loan for    appraised value, a realized loss on the
its appraised        mortgage loan could result that may be
value                allocated to your class of certificates.

                     Appraisals  are not  guarantees of present or future value.
                     Appraisals   seek  to  establish  the  amount  a  typically
                     motivated buyer would pay a typically  motivated  seller as
                     of a designated  date.  This amount could be  significantly
                     higher  than  the  amount  obtained  from  the  sale  of  a
                     mortgaged  property under a distress or liquidation sale at
                     a  subsequent  date.  If a borrower  defaults on a mortgage
                     loan,  the  servicer  may be  unable  to sell  the  related
                     mortgaged property for its appraised value.

                     Appraisals  are  estimates  of  value  at the  time  of the
                     appraisal   based  on  the  analysis  and  opinion  of  the
                     appraiser.  The values of the mortgaged properties may have
                     changed  significantly  since the appraisal was  performed.
                     Most  appraisals  have not been updated  since the mortgage
                     loan was originated.]

[Subordinate         [  ] of the mortgaged properties securing [  ]%
financing on the     of the initial pool balance are encumbered by
mortgaged            subordinate debt that is not part of the
property may         mortgage pool. The existence of subordinate
increase risks       indebtedness may adversely affect the
                     borrower's  financial  viability or the  enforcement of its
                     lender's  security  interest in the mortgaged  property and
                     result in realized losses on the mortgage loans that may be
                     allocated  to your class of  certificates.  The  borrower's
                     financial  viability  or the  enforcement  of the  lender's
                     security   interest   could  be   adversely   affected   by



                                      S-24
<PAGE>

                subordinate financing because:

                     o  refinancing the mortgage loan at maturity
                        for the purpose of making any balloon
                        payments may be more difficult;

                     o  reduced cash flow could result in
                        deferred maintenance; and

                     o  if  the  borrower  defaults  after  the  holder  of  the
                        subordinated  debt files for  bankruptcy or is placed in
                        involuntary  receivership,  foreclosing on the mortgaged
                        property could be delayed.

                     The holder of any material  subordinate debt on each of the
                     mortgaged  properties  has agreed not to  foreclose  for so
                     long as the mortgage loan is  outstanding  and the trust is
                     not  pursuing a  foreclosure  action.  All of the  mortgage
                     loans either  prohibit the borrower  from  encumbering  the
                     mortgaged  property with additional secured debt or require
                     the  consent  of the  holder  of the first  lien  before so
                     encumbering  the  mortgaged  property.  A violation of this
                     prohibition,  however,  may not  become  evident  until the
                     mortgage loan  otherwise  defaults.  For a  description  of
                     subordinate debt relating to the mortgaged properties,  see
                     "Description  of  the  Mortgage  Pool--Secured  Subordinate
                     Financing" in this prospectus supplement.]

[Mezzanine debt     The direct  parents of some  borrowers have pledged
secured by equity   or are  permitted to pledge their equity interest
in the borrower     in the  borrower to secure mezzanine debt incurred by
may increase risk   the parent or other obligations.  The  existence  of  this
                    indebtedness could adversely affect the financial  viability
                    of such  borrower or the  availability  of proceeds from the
                    operation   of  the   property   to  fund   items   such  as
                    replacements,   tenant   improvements   or   other   capital
                    expenditures.  The value of the equity in the borrower  held
                    by the  sponsoring  entities of the  borrower  could also be
                    adversely   affected   by   the   existence   of   mezzanine
                    indebtedness or other obligations.  There is a risk that any
                    holder of  mezzanine  debt may  attempt to use its rights as
                    owner of the  mezzanine  loan to protect  itself  against an
                    exercise of rights by the lender  under the  mortgage  loan.
                    For  a  description   of  mezzanine  debt  relating  to  the
                    mortgaged   properties  see  "Description  of  the  Mortgage
                    Pool--Unsecured Subordinate and Mezzanine Financing" in this
                    prospectus supplement.]

[Related Borrowers  Some  borrowers   under  the  mortgage  loans  are
may make losses     affiliated  or under common  control with one
on the mortgage     another.  When borrowers are related, any
loans more severe   adverse  circumstances  relating  to one  borrower
                    or its  affiliates,  and  affecting  one mortgage
                    loan or  mortgaged  property,  also can affect the  related
                    borrower's  mortgage  loans or mortgaged  properties  which
                    could make  losses  more likely or more severe or both than


                                      S-26
<PAGE>

                     would be the case if there were no related borrowers.

                     For  example,  a  borrower  that owns or  controls  several
                     mortgaged  properties and experiences  financial difficulty
                     at one mortgaged property might defer maintenance at one or
                     more other mortgaged properties to satisfy current expenses
                     of   the   mortgaged   property   experiencing    financial
                     difficulty.  Alternatively,  the borrower  could attempt to
                     avert  foreclosure  by filing a  bankruptcy  petition.  The
                     bankruptcy  or  insolvency of one borrower or its affiliate
                     could have an adverse effect on the operation of all of the
                     mortgaged  properties of that  borrower and its  affiliates
                     and on the ability of those mortgaged properties to produce
                     sufficient  cash  flow to  make  required  payments  on the
                     mortgage  loans.  The  insufficiency  of cash  flows  could
                     result in realized losses on the mortgage loans that may be
                     allocated to your class of certificates. See "Certain Legal
                     Aspects      of      the      Mortgage       Loans      and
                     Contracts--Anti-Deficiency     Legislation     and    Other
                     Limitations on Lenders" in the prospectus.]

[Larger-than-       Several   mortgage   loans,   either individually or
average balance     together  with  other mortgage   loans  with  which   they
loans may make      cross-collateralized,  have outstanding severe balances
losses more severe  that are substantially higher than the average
                    outstanding  balance.  If a mortgage pool includes
                    mortgage  loans  with  larger-than-average   balances,  any
                    realized    losses    on   the    mortgage    loans    with
                    larger-than-average balances could be more severe, relative
                    to the  size of the  pool,  than  would  be the case if the
                    aggregate  balance  of the pool  were  distributed  among a
                    larger number of mortgage loans.]

[Losses could        [  ] mortgage loans, representing [  ]% of the
result from          initial pool balance, are cross-collateralized
limitation on        with one or more other mortgage loans.
enforceability of    Cross-collateralization arrangements involving
cross-collateraliza-more than one borrower could be challenged as a
tion                 fraudulent  conveyance by creditors of a borrower or by the
                     representative or the bankruptcy  estate of a borrower,  if
                     that borrower were to become a debtor in a bankruptcy case.

                     The additional security provided by cross-collateralization
                     would not be available if a court determines that the grant
                     was  a  fraudulent  conveyance.   If  a  creditor  were  to
                     successfully assert a fraudulent  conveyance claim it could
                     result in realized losses on the mortgage loans that may be
                     allocated to your class of certificates. See "Certain Legal
                     Aspects      of      the      Mortgage       Loans      and
                     Contracts--Anti-Deficiency     Legislation     and    Other
                     Limitations on Lenders" in the prospectus and  "Description
                     of the Mortgage  Pool--Terms and Conditions of the Mortgage
                     Loans--Related  Borrowers,   Cross-Collateralized  Mortgage
                     Loans  and  Mortgage  Loans   Collateralized

                                      S-27
<PAGE>

                    by Multiple Properties" in this prospectus supplement.]

[Tax considerations [Payment  of  taxes  on any  net  income  from  "foreclosure
related to          property" acquired by the trust will reduce the net proceeds
foreclosure         available for  distribution  to  certificateholders.  If the
may reduce payments trust  acquires a mortgaged  property after a default on the
to certificate-     related  mortgage loan under a foreclosure  or delivery of a
holders             deed in lieu of  foreclosure,  that property will be

                     considered "foreclosure property" under the tax rules
                     applicable  to real  estate mortgage investment conduits.
                     It  will  continue  to  be considered  "foreclosure
                     property"  for a period  of three full years after
                     the  taxable  year of  acquisition  by the
                     trust, with possible  extensions.  Any net income from this
                     "foreclosure  property," other than qualifying  "rents from
                     real  property,"  will  subject  the real  estate  mortgage
                     investment conduit containing the mortgage loans to federal
                     and  possibly  state or  local  tax on that  income  at the
                     highest marginal corporate tax rate.]

[State law           Some jurisdictions, including California, have
limitations on       laws that prohibit more than one "judicial
remedies             action" to enforce a mortgage, and some courts
                     have viewed the term "judicial action" broadly. The pooling
                     and servicing  agreement  will require the servicer and any
                     replacement  special servicer to obtain legal advice before
                     enforcing  any rights under the mortgage  loans that relate
                     to  properties  where  the  rule  could be  applicable.  In
                     addition, the servicer and any replacement special servicer
                     may be required to foreclose on  properties in states where
                     the  "one  action"  rules  apply  before   foreclosing   on
                     properties located in states where judicial  foreclosure is
                     the only permitted method of foreclosure.

                     Because  of  these  considerations,   the  ability  of  the
                     servicer and any replacement  special servicer to foreclose
                     on the mortgage loans may be limited by the  application of
                     state  laws.  Actions  could  also  subject  the  trust  to
                     liability  as  a  "mortgagee-in-possession"  or  result  in
                     equitable subordination of the claims of the trustee to the
                     claims of other  creditors  of the  borrower.  The servicer
                     will be required to consider these factors in deciding what
                     alternative to pursue after a default.]

[Bankruptcy rules   [Operation  of the federal  bankruptcy  code and the related
may limit the       state  laws may  interfere  with the  ability of a lender to
ability of a        foreclose upon a lender mortgaged property and to take other
lender to enforce   actions to enforce its remedies against the borrower or
remedies            the mortgaged property. For a description of
                    risks related to bankruptcy, see "Certain Legal
                    Aspects of the Mortgage Loans and Contracts--Anti-Deficiency
                    Legislation and Other Limitations on Lenders" in
                    the prospectus.]

[Increases in        [  ] mortgaged properties securing mortgage

                                      S-27
<PAGE>

ground rents may     loans, which represent [  ]% of the initial
adversely affect     pool balance, are subject solely to the lien of
a borrower's         a mortgage on the applicable borrower's
ability to make      leasehold interest under a ground lease. [  ]
payments under a     mortgaged properties securing mortgage loans,
related mortgage     which represent [  ]% of the initial pool
loan and cause       balance, are subject to the lien of either a
realized losses      mortgage on both the borrower's leasehold
on the mortgage      interest and the ground lessor's fee simple
loans                interest in the mortgaged property or a
                     mortgage on the borrower's  leasehold interest in a portion
                     of the  mortgaged  property and the  borrower's  fee simple
                     interest  in  the   remaining   portion  of  the  mortgaged
                     property.

                     Mortgage  loans secured by leasehold  interests may provide
                     for the  resetting  of ground  lease rents based on factors
                     such as the  fair  market  value of the  related  mortgaged
                     property or prevailing interest rates. Bankruptcy rules may
                     limit the ability of a lender to enforce remedies.

                     The bankruptcy of a lessor or a lessee under a ground lease
                     could  result  in  losses  on  the  mortgage  loans.   Upon
                     bankruptcy  of a lessor or a lessee  under a ground  lease,
                     the debtor  entity has the right to assume and  continue or
                     reject and terminate the ground  lease.  Section  365(h) of
                     the federal  bankruptcy  code permits a ground lessee whose
                     ground  lease is  rejected  by a debtor  ground  lessor  to
                     remain in possession of its leased  premises under the rent
                     reserved in the lease for the term,  including  renewals of
                     the  ground  lease.  The  ground  lessee,  however,  is not
                     entitled to enforce the  obligation of the ground lessor to
                     provide any services  required under the ground lease. If a
                     ground lessee/borrower in bankruptcy rejected any or all of
                     its ground leases,  the leasehold  mortgagee would have the
                     right to succeed to the ground  lessee/borrower's  position
                     under the lease only if the ground lessor had  specifically
                     granted the mortgagee that right.  If the ground lessor and
                     the  ground  lessee/borrower  are  involved  in  concurrent
                     bankruptcy  proceedings,  the  trustee  may  be  unable  to
                     enforce the bankrupt ground lessee/borrower's obligation to
                     refuse  to  treat a ground  lease  rejected  by a  bankrupt
                     ground lessor as  terminated.  If this  happened,  a ground
                     lease could be terminated notwithstanding lender protection
                     provisions  contained  therein or in the  mortgage.  If the
                     borrower's  leasehold  were to be terminated  after a lease
                     default, the leasehold mortgagee would lose its security.

                     Each of the ground  leases  related to the mortgage  loans,
                     however,  generally  contains the following  protections to
                     mitigate this risk:

                     o  It requires the lessor to give the  leasehold  mortgagee
                        notice of lessee  defaults  and an  opportunity  to cure
                        them.

                     o  It permits the leasehold estate to be assigned to and by

                                      S-28
<PAGE>

                       the leasehold mortgagee at and after a foreclosure sale.

                     o  It  contains   certain   other   protective   provisions
                        typically included in a "mortgageable" ground lease.

                     See  "Description of the Mortgage  Pool--Ground  Leases" in
                     this prospectus supplement.]

[Your payments       Noncompliance with zoning and building codes
may be reduced or    may cause the borrower to experience cash flow
delayed if zoning    delays and shortfalls. These delays or
and building code    shortfalls in payments could result in realized
noncompliance on     losses in the mortgage loans that may be
the mortgaged        allocated to your class of certificates.
properties
adversely affects    Each seller has taken steps to establish that
the ability of       the use and operation of the related mortgaged
borrowers to make    properties securing the mortgage loans are in
payments on the      compliance in all material respects with all
mortgage loans       applicable zoning, land-use, building, fire and
                     health ordinances, rules, regulations, and orders. Evidence
                     of this  compliance  may be in the form of legal  opinions,
                     certifications  from  government  officials,  title  policy
                     endorsements or  representations by the related borrower in
                     the related  mortgage loan  documents.  These steps may not
                     have revealed all possible violations.  Some violations may
                     exist at any particular mortgaged property,  but the seller
                     does not consider those defects known to it to be material.

                     In  many  cases,  the  use,  operation  or  structure  of a
                     mortgaged  property  constitutes a permitted  nonconforming
                     use or  structure  that may not be rebuilt  to its  current
                     state  if a  material  casualty  event  occurs.  Generally,
                     insurance  proceeds  will be  available  in the  event of a
                     casualty  affecting the mortgaged  property.  The insurance
                     proceeds   will  be  available  to  rebuild  the  mortgaged
                     property or for  application  to the  mortgage  loan.  If a
                     mortgaged  property  could not be  rebuilt  to its  current
                     state or its  current use were no longer  permitted  due to
                     building   violations   or   changes  in  zoning  or  other
                     regulations,  then the borrower might  experience cash flow
                     delays and shortfalls as referred to above.]

[Changes in          As the mortgage loans are repaid, liquidated or
concentrations of    repurchased, the characteristics of the pool
borrowers,           may vary. For example, the relative
mortgage loans or    concentrations of properties, geographic
property             location, property characteristics, and number
characteristics      of borrowers and affiliated borrowers may
may increase the     change. Classes that have a lower priority for
likelihood of        payment of principal are more likely to be
losses on the        exposed to risks associated with any of these
certificates         changes.]



                                      S-29
<PAGE>

[Compliance with     If the borrower were required to pay expenses
the Americans        and fines imposed by the Americans with
with Disabilities    Disabilities Act of 1990, the amount available
Act may reduce       to make payments on the mortgage loan would be
payments to          reduced. Reductions in funds available to make
certificateholders   mortgage loan payments could result in realized
                     losses on the mortgage  loans that may be allocated to your
                     class   of   certificates.   Under   the   Americans   with
                     Disabilities Act, all public accommodations are required to
                     meet  federal  requirements  related  to access  and use by
                     disabled persons. If the mortgaged properties do not comply
                     with this law, the borrowers may be required to incur costs
                     of compliance. Noncompliance could result in the imposition
                     of fines by the federal  government  or an award of damages
                     to private litigants.]

[Litigation  may     Legal  proceedings may be pending and, from
reduce payments to   time  to  time,  threatened,  against  the
certificates         borrowers and their affiliates relating to the business
                     of the borrowers and their affiliates, or arising
                     out of the ordinary course of that business.
                     This litigation could have a material adverse
                     effect on the distributions to
                     certificateholders.]

                                      S-30

<PAGE>


                                  INTRODUCTION

      The  Depositor  will  establish a trust with  respect to Series -__ on the
closing date, under a pooling and servicing  agreement among the depositor,  the
servicer and the trustee, dated as of the cut-off date. On the closing date, the
depositor  will  deposit  into the trust a pool of mortgage  loans that,  in the
aggregate, will constitute a mortgage pool, and that will be secured by first or
junior liens on one-to four-family residential properties.

      Some  capitalized  terms  used  in this  prospectus  supplement  have  the
meanings given below under "Description of the  Certificates--Glossary of Terms"
or in the prospectus under "Glossary."

                        DESCRIPTION OF THE MORTGAGE POOL

General

      The  mortgage  pool will  consist  of  mortgage  loans  with an  aggregate
principal balance  outstanding as of the cut-off date, after deducting  payments
of principal due on or before the cut-off  date,  of $ . The mortgage  loans are
secured by [first] [and junior  liens] on fee simple or  leasehold  interests in
[one-  to  four-family  residential][commercial][multifamily]  real  properties.
[___% of the  mortgage  loans  have a due date  other than the first day of each
month].  In each case, the property securing the mortgage loan is referred to as
the   mortgaged   property.   [The   mortgage   pool  will  consist  of  [fixed]
[adjustable]-rate  mortgage  loans with terms to  maturity  of not more than [ ]
years from the date of origination. [Approximately __% of the mortgage loans are
secured by second liens on the mortgaged  properties.]  All  percentages  of the
mortgage  loans  described  in  this   prospectus   supplement  are  approximate
percentages  by  aggregate  principal  balance  as of the  cut-off  date  unless
otherwise indicated.

      All of the mortgage loans were  purchased by the depositor  from, and will
be serviced by, [ ]. See "The Seller and Servicer" below.

      Under the terms of the pooling and  servicing  agreement,  the Seller will
make  representations  and warranties  with respect to the mortgage loans to the
trustee for the benefit of the certificateholders.

      To the extent that the Seller does not  repurchase a mortgage  loan in the
event of a breach of its  representations  and  warranties  with respect to that
mortgage  loan,  neither the  Depositor nor any other person will be required to
repurchase the mortgage loan.

[Balloon Loans

      [ ] of the  mortgage  loans,  which  represent  approximately  [ ]% of the
initial pool  balance,  are balloon  loans that provide for monthly  payments of
principal  based  on  amortization  schedules   significantly  longer  than  the
remaining terms of those mortgage loans.  As a result,  a substantial  principal
amount will be due and payable together with the corresponding  interest payment
on each  balloon  loan on its maturity  date,  unless the  borrower  prepays the
balloon loan before its maturity date.]

                                      S-31
<PAGE>

[Defeasance

      [ ]% of the mortgage loans secured by commercial  properties  provide that
after a specified  period,  if no default  exists under the mortgage  loan,  the
borrower may  exercise a defeasance  option to obtain the release of one or more
of the mortgaged properties,  from the lien of the mortgage upon satisfaction of
conditions, including that the borrower:

      (1)  pays on any due date

          o    all interest  accrued and unpaid on the principal  balance of the
               mortgage note to and, including that due date,

          o    all  other  sums,   excluding  scheduled  interest  or  principal
               payments not yet due and owing, due under the mortgage loan, and

          o    any costs and expenses related to the release,

      (2)  delivers or pledges to the trustee defeasance collateral

          o    that  consists  of  direct,   non-callable   obligations  of,  or
               non-callable  obligations,  fully guaranteed as to timely payment
               by, the United States of America; and

          o    that provides payments:

          o    on or before all successive scheduled payment dates from that due
               date to the related maturity date, and

          o    in an amount equal to or greater than the scheduled  payments due
               on   those   dates   under   the   mortgage    loan,    or,   for
               cross-collateralized  mortgage loans or mortgage loans secured by
               multiple mortgaged properties which permit defeasance,  an amount
               equal to not less  than the  portion  of the  scheduled  payments
               allocable to the released mortgaged property, and

      (3)  delivers a security  agreement  granting  the trust a first  priority
           security  interest  in the  defeasance  collateral  and an opinion of
           counsel to that effect.

      The mortgaged property will be released from the lien of the mortgage loan
and the defeasance collateral will be substituted as the collateral securing the
mortgage loan when these conditions are met.]

[Prepayment Provisions

      Each mortgage loan prohibits voluntary  principal  prepayments at any time
except during an open period  following the expiration of the lockout period and
defeasance  period  for that  mortgage  loan or  during a period  following  the
lockout period when any prepayment must be accompanied by a prepayment premium.

                                      S-32
<PAGE>

      Any prepayment  premiums actually  collected on the mortgage loans will be
distributed to the respective classes of  certificateholders  in the amounts and
priorities        described        under        "Description        of       the
Certificates--Distributions--Distributions   of  Prepayment  Premiums"  in  this
prospectus   supplement.   The  enforceability  of  provisions  similar  to  the
provisions  of the  mortgage  loans  providing  for the payment of a  prepayment
premium upon an involuntary  prepayment is unclear under the laws of a number of
states.  The  obligation  to  pay  a  prepayment  premium  with  an  involuntary
prepayment may not be enforceable  under applicable law or, if enforceable,  the
foreclosure proceeds may not be sufficient to make the payment.

      Liquidation  proceeds  recovered from any defaulted mortgage loan will, in
most  cases,  be  applied to cover  outstanding  servicing  expenses  and unpaid
principal and interest before being applied to cover any prepayment premium due.
The depositor makes no representation as to the  enforceability of the provision
of any mortgage loan requiring the payment of a prepayment  premium or as to the
collectability of any prepayment premium.  Generally, no prepayment premium will
be payable upon any mandatory prepayment of a mortgage loan caused by a casualty
or  condemnation.   See  "Certain  Legal  Aspects  of  the  Mortgage  Loans  and
Contracts--Default Interest and Limitations on Prepayments" in the prospectus.

      In most cases,  no  prepayment  premium will be payable upon any mandatory
prepayment  of  a  mortgage  loan  caused  by a  casualty  or  condemnation.  No
prepayment  premium will be payable with the  repurchase of a mortgage loan by a
seller for a breach of  representation or warranty or any failure to deliver any
related  documentation on the part of that seller. No prepayment premium will be
payable with the purchase of all of the mortgage loans and any REO properties in
connection  with the  termination  of the  trust  fund or with the  purchase  of
defaulted   mortgage  loans  by  the  servicer  or  any  holder  or  holders  of
certificates evidencing a majority interest in the controlling class.]

[Related Borrowers, Cross-Collateralized Mortgage Loans and Mortgage Loans
Collateralized by Multiple Properties

      [ ] mortgage loans, which represent [ ]% of the initial pool balance,  are
cross-collateralized  mortgage  loans  among  groups of related  borrowers.  [ ]
mortgage  loans,  other  than the  cross-collateralized  mortgage  loans,  which
represent [ ]% of the initial pool balance, are secured by one or more mortgages
encumbering  multiple  mortgaged  properties.  Each of these  mortgage  loans is
evidenced  by a  separate  mortgage  note,  and  is  not  treated  as a  set  of
cross-collateralized  mortgage  loans.  Because  of this,  the  total  number of
mortgage  loans in the mortgage pool is [ ], while the total number of mortgaged
properties in the mortgage pool is [ ]. In most cases,  we treat a mortgage loan
that is secured by mortgaged  properties that are located in more than one state
as an  individual  mortgage  loan,  except that when we describe the  geographic
concentration  and property  type  distribution  of the mortgage  pool, we treat
these  mortgage  loans as multiple  mortgage  loans that are allocated a cut-off
date  balance  based on the  allocated  loan  amount.  Losses  could result from
limitations on the enforceability of  cross-collateralization.  For a discussion
of risks  related to  cross-collateralized  loans,  see "Risk  Factors"  in this
prospectus supplement.

      [insert additional  disclosure regarding isolating  individual  properties
and  risks,   rights  and   obligations   of  the  parties  in  respect  of  the
cross-collateralized groups, as appropriate]

                                      S-33
<PAGE>

      In  addition  to the  cross-collateralized  loans and the  mortgage  loans
secured by multiple mortgaged properties,  some sets of mortgage loans were made
to borrowers who are affiliated or under common  control with one another.  None
of these sets of mortgage  loans  represents  more than [ ]% of the initial pool
balance.]

[Due-on-Sale and Due-on-Encumbrance Provisions

      All of the mortgage loans contain both due-on-sale and  due-on-encumbrance
clauses. With limited exceptions, these clauses either:

          o    permit the holder of the mortgage to  accelerate  the maturity of
               the related  mortgage loan if the borrower  sells or transfers or
               encumbers the mortgaged property in violation of the terms of the
               mortgage or other loan documents, or

          o    prohibit  the  borrower  from doing so without the consent of the
               holder of the mortgage.  See "--Secured Subordinate Financing" in
               this prospectus supplement.

      Some of the mortgage loans permit either:

          o    transfer  of  the  related   mortgaged   property  if   specified
               conditions  are  satisfied  or if the  transfer  is to a borrower
               reasonably acceptable to the lender, or

          o    transfers to specified parties related to the borrower.

      The servicer will determine,  in accordance  with the servicing  standard,
whether  to  exercise  any right the  holder of any  mortgage  may have  under a
due-on-sale or  due-on-encumbrance  clause to accelerate  payment of the related
mortgage loan or to withhold its consent to the transfer or  encumbrance  of the
mortgaged property.]

[Secured Subordinate Financing

      [ ] mortgage  loans  representing  [ ]% of the  initial  pool  balance are
secured by mortgaged properties known to be encumbered by subordinated debt that
is not part of the  mortgage  pool.  In all cases,  the  holder of any  material
subordinated  debt  has  agreed  not to  foreclose  for so long  as the  related
mortgage loan is outstanding and the trust is not pursuing a foreclosure action.
All  of  the  remaining   mortgage  loans  either  prohibit  the  borrower  from
encumbering the mortgaged  property with additional secured debt or will require
the  consent  of the  trustee  before so  encumbering  the  property.  See "Risk
Factors--Subordinate  financing on the mortgaged property may increase risks" in
this prospectus  supplement and "Certain Legal Aspects of the Mortgage Loans and
Contracts--Subordinate Financing" in the prospectus.

      The following table indicates those mortgaged properties that are known to
the  depositor  to be  encumbered  by  secured  subordinate  debt,  the  initial
principal amount of the secured  subordinate debt and the cut-off date principal
balances of the related mortgage loans.

                            Secured Subordinate Debt

                                      S-34
<PAGE>

                                                            PRINCIPAL
                                                  % OF      AMOUNT OF
           LOAN                         CUT-OFF   INITIAL    SECURED
 CONTROL  LOAN                           DATE      POOL     SUBORDINATE
  NUMBER  NUMBER     PROPERTY NAME      BALANCE   BALANCE      DEBT





[Unsecured Subordinate and Mezzanine Financing

      Some of the  mortgage  loans may permit the  borrower  to incur  unsecured
subordinated debt in the future,  in most cases,  conditioned upon delivery of a
subordination  agreement or standstill  agreement or both and requirements  that
limit  the use of  proceeds  to  refurbishing  or  renovating  the  property  or
acquiring furniture, fixtures and equipment for the property or both. [ ] of the
mortgage  loans  having  a  cut-off  date  balance  of  $[ ],  and  representing
approximately  [ ]% of the initial pool  balance,  permits the borrower to incur
unsecured subordinated debt and/or mezzanine debt secured by equity interests in
the borrower if the sum of all mezzanine, subordinated and other debt secured by
the mortgaged  property does not exceed 80% of the lesser of the (a) fair market
value of the property  determined by the lender and (b) the most recent purchase
price of the property.  Some of the mortgage  loans also permit the owner of the
borrower to incur  "mezzanine  debt"  secured by the  ownership  interest in the
borrower. This financing effectively reduces the indirect equity interest of any
such  owner in the  related  mortgaged  property.  No such  "mezzanine  debt" is
included in the mortgage pool. At the time such mezzanine or  subordinated  debt
is incurred,  the DSCR for that mortgage loan may not be less than 1.20x and the
total DSCR (on a pro forma basis) must not be less than 1.10x.  Subject to these
tests, there is no cap on the amount of unsecured subordinated debt or mezzanine
debt that may be incurred.

      Additional debt, in any form, may cause a diversion of funds from property
maintenance  and  increase  the  likelihood  that the  borrower  will become the
subject of a bankruptcy proceeding.

      Except as  described  above,  the  depositor  has not been able to confirm
whether the  respective  borrowers  under the mortgage loans have any other debt
outstanding.

      See "Risk  Factors--Subordinate  financing on the  mortgaged  property may
increase  risk" and  "--Mezzanine  debt  secured by equity in the  borrower  may
increase risk" in this  prospectus  supplement and "Certain Legal Aspects of the
Mortgage Loans and Contracts--Subordinate Financing" in the prospectus.]

[Ground Leases

      [ ] mortgaged  properties securing mortgage loans, which represent [ ]% of
the initial pool  balance,  are subject  solely to the lien of a mortgage on the
applicable borrower's leasehold interest in such mortgaged property.

                                      S-35
<PAGE>

      [ ] mortgaged  properties securing mortgage loans, which represent [ ]% of
the initial pool balance, are subject to the lien of either:

          o    a mortgage  on both the  borrower's  leasehold  interest  and the
               ground lessor's fee simple interest in the mortgaged property or

          o    a mortgage on both the borrower's leasehold interest in a portion
               of the mortgaged  property and the borrower's fee simple interest
               in the remaining portion of the mortgaged property.

      [ ] of the ground leases  (including  any extension  options)  expire less
than ten years after the stated maturity of the related mortgage loan. Under the
terms of each such ground lease, the ground lessor generally has either made its
fee interest subject to the related mortgage or,  typically,  has agreed to give
the holder of the mortgage loan notice of, and has granted such holder the right
to cure, any default or breach by the lessee.]

[Significant Mortgage Loans

[The [  ] Loan

      The Loan. The "[ ] loan" representing [ ]% of the initial pool balance was
originated  by [ ] on [ ] and has a principal  balance as of the cut-off date of
approximately  $[ ]. The [ ] loan is a balloon loan with a maturity  date of [ ]
and is secured by, among other  things,  a fee mortgage  encumbering a [[ ] unit
multifamily building with retail space] located in [ ]. The [ ] loan was made to
[ ].

      Payment  and  prepayment  terms  for  the [ ] loan  are set  forth  in the
following table:

      [[  ] Loan Payment and Prepayment Table].

      The [  ] Property. [  ].

      Defeasance. [  ].

      Value. [  ].

      Underwritten NCF and DSC Ratio. [ ].

      Property Management. [  ].

      Master Lease. [  ].

      Debt Service Reserve. [  ].

      Lockbox. [  ].]



                                      S-36
<PAGE>

Mortgage Pool Characteristics

      None of the mortgage  loans will have been  originated  prior to , or will
have a maturity  date later than 1, 20 . No mortgage  loan will have a remaining
term to  maturity  as of the  cut-off  date of less than  months.  The  weighted
average  remaining term to maturity of the mortgage loans as of the cut-off date
will be approximately  months. The weighted average original term to maturity of
the mortgage loans as of the cut-off date will be approximately  months.  __% of
the mortgage  loans are fully  amortizing and have original terms to maturity of
approximately  fifteen years,  with a weighted average  remaining term to stated
maturity of these  mortgage  loans of __ months.  __% of the mortgage  loans are
fully  amortizing  and have original terms to maturity of  approximately  thirty
years,  with a  weighted  average  remaining  term to stated  maturity  of these
mortgage loans of __ months.

      [Approximately % of the mortgage loans will be Buy-Down Loans.]

      None of the  mortgage  loans  provide  for  deferred  interest or negative
amortization.

      [Approximately ___% of the mortgage loans are Convertible  Mortgage Loans,
which  provide  that,  at the option of the related  mortgagor,  the  adjustable
interest rate on a mortgage loan may be converted to a fixed interest rate. Upon
conversion,  the  mortgage  rate  will be  converted  to a fixed  interest  rate
determined in accordance with the formula set forth in the related mortgage note
which  formula is intended  to result in a mortgage  rate which is not less than
the then current market interest rates,  subject to applicable usury laws. After
the conversion,  the monthly payments of principal and interest will be adjusted
to provide for full amortization over the remaining term to scheduled maturity.]

      [The  servicer will be obligated to repurchase  any  Convertible  Mortgage
Loan following the conversion  thereof at a price equal to the unpaid  principal
balance thereof plus accrued interest to the first day of the month in which the
purchase price is to be distributed to the Class A Certificates. If the servicer
fails to  repurchase  a  Convertible  Mortgage  Loan  following  the  conversion
thereof,  it will not  constitute  an Event of  Default  under the  Pooling  and
Servicing  Agreement  and the  mortgage  loan will remain in the trust fund as a
fixed-rate loan.]

      Approximately  ___%  of  the  mortgage  loans  will  have  mortgage  rates
calculated on the basis of the simple interest method.  See "The Trust Fund--The
Mortgage Pools--Simple Interest Loans" in the prospectus.

      [Mortgage  Rate  Adjustment:  The mortgage rate on the mortgage loans will
adjust semi-annually commencing  approximately six months after origination,  on
the adjustment  date specified in the related  mortgage note, to a rate equal to
the sum,  rounded as specified in the related mortgage notes, of Six-Month LIBOR
and the note  margin  set forth in the  related  mortgage  note,  subject to the
limitations described in this prospectus supplement.]

      [The amount of the monthly  payment on each mortgage loan will be adjusted
semi-annually  on the due date of the  month  following  the  month in which the
adjustment  date  occurs to equal the amount  necessary  to pay  interest at the
then-applicable  mortgage rate and to fully amortize the  outstanding  principal
balance of each mortgage loan over its remaining term to


                                      S-37
<PAGE>

stated  maturity.  As of the cut-off date,  ___% of the mortgage loans will have
reached  their first  adjustment  date.  The  mortgage  loans will have  various
adjustment dates, note margins and limitations on the mortgage rate adjustments,
as described below.]

      [The  mortgage  rate on each  loan may not  increase  or  decrease  on any
adjustment  date by more than a specified  percentage  per annum.  This periodic
rate cap is not more than ___%,  except  that the  mortgage  rate on some of the
mortgage loans may adjust up to ___% on the initial adjustment date.]

      [The mortgage rate on a mortgage loan may not exceed the maximum  mortgage
rate or be less than the minimum  mortgage rate specified for such mortgage loan
in the related  mortgage note. The minimum  mortgage rate for each mortgage loan
will be equal to the note  margin,  except in the case of ____% of the  mortgage
loans,  which have a minimum  mortgage  rate greater  than the note margin.  The
minimum  mortgage  rates on the  mortgage  loans will range from ____% to ____%,
with a weighted  average minimum mortgage rate as of the cut-off date of _____%.
The  maximum  mortgage  rates on the  mortgage  loans  will  range from ____% to
______%, with a weighted average maximum mortgage rate as of the cut-off date of
____%.  No mortgage loan provides for payment caps on any  adjustment  date that
would result in deferred interest or negative amortization.]

      [Six-Month LIBOR. The reference date with respect to each mortgage loan is
the date as of which  Six-Month  LIBOR, as published by The Wall Street Journal,
is determined. The reference date with respect to each mortgage loan is:

          o    the first  business day of the month  immediately  preceding  the
               month in which the adjustment date occurs,

          o    the date forty-five days prior to the adjustment date,

          o    the date fifteen days prior to the adjustment date, or

          o    the 20th  day of the  month  preceding  the  month  in which  the
               adjustment date occurs;

except that the reference date with respect to ___ mortgage loans,  representing
approximately  ___% of the aggregate  principal  balance of the mortgage  loans,
will adjust with  respect to  Six-Month  LIBOR as published by Fannie Mae and as
most recently  available as of the date  forty-five days prior to the adjustment
date.]

      [Listed  below are  levels of  Six-Month  LIBOR as  published  by The Wall
Street  Journal that are or would have been  applicable to mortgage loans with a
reference date of the first business day of the preceding  month, and having the
following  adjustment dates for the indicated  years.  There can be no assurance
that levels of Six-Month LIBOR published by Fannie Mae, or published in The Wall
Street Journal on a different  reference date would have been at the same levels
as those set forth below. The following does not purport to be representative of
future levels of Six-Month  LIBOR, as published by Fannie Mae or The Wall Street
Journal.  No


                                      S-38
<PAGE>

assurance can be given as to the level of Six-Month LIBOR on any adjustment date
or during the life of any mortgage loan based on Six-Month LIBOR.]

      [table of Six-Month LIBOR]


      The initial  mortgage rate in effect on a mortgage loan  typically will be
lower,  and may be significantly  lower,  than the mortgage rate that would have
been in effect based on Six-Month LIBOR and the related note margin.  Therefore,
unless  Six-Month  LIBOR  declines  after  origination  of a mortgage  loan, the
related  mortgage  rate will  typically  increase on the first  adjustment  date
following  origination of such mortgage loan,  subject to the periodic rate cap.
The  repayment  of the  mortgage  loans will be  dependent on the ability of the
mortgagors to make larger monthly payments following adjustments of the mortgage
rate.  Mortgage  loans that have the same initial  mortgage  rate may not always
bear interest at the same  mortgage  rate because such  mortgage  loans may have
different  adjustment  dates  (and the  mortgage  rates  therefore  may  reflect
different  related Index  values),  note  margins,  maximum  mortgage  rates and
minimum mortgage rates. The net mortgage rate with respect to each mortgage loan
as of the cut-off date will be set forth in the mortgage loan schedule  attached
to the Pooling and Servicing  Agreement.  The net mortgage rate on each mortgage
loan will be adjusted on each  adjustment  date to equal the servicing fee rate,
which the mortgage  rate on the mortgage  loan minus the sum of (i) the rate per
annum at which the  servicing  fee  accrues  on the  mortgage  loan and (ii) the
policy premium rate, which is the amount of the premium payable to the financial
guaranty  insurer  with  respect to the  financial  guaranty  insurance  policy,
subject to any  periodic  rate cap,  but may not exceed the maximum net mortgage
rate, or be less than the minimum net mortgage rate for such mortgage  loan. See
"Description  of the  Mortgage  Pool--Mortgage  Pool  Characteristics"  in  this
prospectus supplement.]

      Set forth below is a description of some additional characteristics of the
mortgage  loans  as  of  the  cut-off  date  unless  otherwise  indicated.   All
percentages  of the  mortgage  loans are  approximate  percentages  by aggregate
principal  balance as of the cut-off  date unless  otherwise  indicated.  Unless
otherwise specified,  all principal balances of the mortgage loans are as of the
cut-off date and are rounded to the nearest dollar.

                                 Mortgage Rates

                                      Cut-off Date
                      Number of        Principal        Percent of
Mortgage Rates (%)  Mortgage Loans      Balance       Mortgage Pool


                                      $                          %





                                      S-39
<PAGE>




  Total                               $                          %

      As of the cut-off date, the weighted average mortgage rate of the mortgage
loans will be approximately % per annum.



                    Original Mortgage Loan Principal Balances

                                      Cut-off Date

Original Mortgage     Number of        Principal      Percentage of
   Loan Balance     Mortgage Loans      Balance       Mortgage Pool


  $                                   $                          %






  Total                               $                          %

      As of the  cut-off  date,  the  average  unpaid  principal  balance of the
mortgage loans will be approximately $ .


                                      S-40
<PAGE>

                     Net Mortgage Rates of the Mortgage Loans

                                 Number of  Cut-off Date  Percent of
Net Mortgage                     Mortgage    Principal     Mortgage
Rates (%)                          Loans      Balance       Loans
  6.000-................6.499               $                       %
  6.500-................6.999
  7.000-................7.499
  7.500-................7.999
  8.000-................8.499
  8.500-................8.999
  9.000-................9.499
  9.500-................9.999
 10.000-...............10.499
 11.000-...............11.499
 11.500-...............11.999
 12.000-...............12.499
 12.500-...............12.999
 13.000-...............13.499
      Total..................               $                       %


      As of the cut-off  date,  the weighted  average net  mortgage  rate of the
mortgage loans will be approximately _______% per annum.

                         [Combined Loan-to-Value Ratios

                                      Cut-off date

  Combined Loan       Number of        Principal      Percentage of
to Value Ratio (%)  Mortgage Loans      Balance       Mortgage Pool

                                      $                          %




  Total                               $                          %

      The weighted average combined LTV ratio at origination of the mortgage
loans will be approximately         %.]
                            --------
-

      [The method for  calculating  the combined  LTV ratio is  described  below
      under the caption "Underwriting Standards."]

                                      S-41
<PAGE>

                      [Junior Ratios of the Mortgage Loans

                                             Cut-off

                                Number of      Date     Percent of
                                Mortgage    Principal    Mortgage

 Junior Ratio(%)                    Loans    Balance       Loans

          -                                  $                %
          -
          -
          -
          -
          -
          -
          -
          -
          -

            Total                            $                %
                                             =====
------------------
           Excludes  mortgage  loans  secured  by  first  liens  on the  related
           mortgaged  property.  With respect to each mortgage loan secured by a
           second lien on the related  mortgaged  property,  the Junior Ratio is
           the ratio of the original  principal  balance of the mortgage loan to
           the sum of (i) the original  principal balance of that mortgage loan,
           and (ii) the unpaid principal  balance of any senior lien at the time
           of the origination of that mortgage loan.

          The  weighted  average  Junior  Ratio  as  of  the  cut-off  date  was
     approximately __%.]


                 Geographic Distributions of Mortgaged Properties

                                      Cut-off Date
                      Number of        Principal      Percentage of
      State         Mortgage Loans      Balance       Mortgage Pool


[California                           $                          %

Connecticut

Illinois

New Jersey

New York]

Other (1)

                                      S-42
<PAGE>

  Total                               $                          %

      (1) Other  includes  states and the  District  of  Columbia  with under 3%
concentrations individually.


      No  more  than % of the  mortgage  loans  will  be  secured  by  mortgaged
properties  located in any one zip code area in California and no more than % of
the mortgage  loans will be secured by mortgaged  properties  located in any one
zip code area outside California.

                              Mortgage Loan Purpose

                                      Cut-off Date
                      Number of        Principal      Percentage of
   Loan Purpose     Mortgage Loans      Balance       Mortgage Pool


Purchase                              $                          %

Rate/Term
Refinance

Equity Refinance

  Total                               $                          %

      The weighted  average  combined LTV ratio at  origination of rate and term
refinance  mortgage loans will be %. The weighted  average combined LTV ratio at
origination of equity refinance mortgage loans will be %.


                        Mortgage Loan Documentation Types

                                      Cut-off Date
                      Number of        Principal      Percentage of
Documentation Type  Mortgage Loans      Balance       Mortgage Pool


Full                                  $                          %

Reduced

  Total                               $                          %

          o    For  purposes  of the above  table,  Reduced  Documentation  Type
               includes mortgage loans which were underwritten under a no stated
               income                                                   program.

      [The weighted average LTV ratio at origination of the mortgage loans which
were underwritten under a reduced loan documentation  program will be %. No more
than % of the  reduced  loan  documentation  mortgage  loans  will be secured by
mortgaged properties located in California.]

                                      S-43
<PAGE>

                                 Occupancy Types

                                      Cut-off Date
                      Number of        Principal      Percentage of
    Occupancy       Mortgage Loans      Balance       Mortgage Pool


Primary Residence                     $                          %

Second/Vacation

Non Owner-occupied

  Total                               $                          %

                            Mortgaged Property Types


                                      Cut-off Date
                      Number of        Principal      Percentage of
  Property Type     Mortgage Loans      Balance       Mortgage Pool


Single-family                         $                          %
detached

Planned Unit
Developments
(detached)

Two- to
four-family units

Condo Low-Rise
(less than 5
stories)

Condo Mid-Rise (5
to 8 stories)

Condo High-Rise
(9 stories or
more)

Townhouse

Planned Unit
Developments
(attached)

Cooperative Units

Multifamily

Leasehold

                                      S-44
<PAGE>

  Total                                    $                     %

                      [Lien Priority of the Mortgage Loans

                              Number of      Cut-off Date    Percent of
      Lien Property         Mortgage Loans     Principal      Mortgage
                                                Balance        Loans


First Lien                                     $                  %
                                               --              ---
Second Lien                                    $                  %
                                               --              ---
     Total                                     $                  %]
                                               ==              ===
-

           Remaining Term of Scheduled Maturity of the Mortgage Loans

                                 Number of  Cut-off Date Percent of

 Months Remaining to Scheduled   Mortgage    Principal   Mortgage
            Maturity               Loans      Balance      Loans

                                                    $
                                                         %
                                                         %

                                                         %

                                                         %

                                                         %

                                                         %

                                                         %

                                                         %

     Total       $             %                         %

      The weighted  average  remaining term to maturity of the mortgage loans as
of the cut-off date was approximately ___ months.

      [In  connection  with each  mortgage  loan that is secured by a  leasehold
interest, the related seller shall have represented to the depositor that, among
other things:

          o    the use of leasehold  estates for  residential  properties  is an
               accepted  practice  in  the  area  where  the  related  mortgaged
               property is located;

          o    residential  property in the area consisting of leasehold estates
               is readily marketable;

          o    the lease is recorded and no party is in any way in breach of any
               provision of the lease;

                                      S-45
<PAGE>

          o    the  leasehold  is in full force and effect and is not subject to
               any prior lien or  encumbrance  by which the  leasehold  could be
               terminated or subject to any charge or penalty; and

          o    the remaining  term of the lease does not terminate less than ten
               years after the maturity date of each such mortgage loan.

Underwriting Standards

General

      All of the mortgage  loans  included in the mortgage pool will be acquired
by the depositor  from the seller.  The following is a brief  description of the
various  underwriting  standards and the  procedures  applicable to the mortgage
loans.

      All [one- to  four-family  residential][commercial][multifamily]  mortgage
loans must meet  acceptable  credit,  appraisal  and  underwriting  criteria  as
established by the seller.  The seller's  underwriting  standards are applied in
accordance with applicable state and federal laws and regulations.  Underwriting
guidelines are established to set acceptable  criteria regarding credit history,
repayment  ability,  adequacy  of  necessary  liquidity,  and  adequacy  of  the
collateral.  These guidelines  typically  conform to secondary market standards,
particularly for conforming loan amounts.

      Additional  loan-to-value  ratio guidelines are established for individual
programs and loan amount ranges.

      [The mortgage loans have been originated  under  documentation  guidelines
classified as "Full Doc", "Low Doc Reduced Doc" and "Streamline  Refinance Doc."
The Full Doc program  consists  of two years of tax  returns  for  self-employed
applicants,  paystubs and W-2's for salaried  applicants and bank statements for
verification of liquidity.  The Low Doc program utilizes income as stated by the
borrower in the loan application and, for certain  loan-to-value ratios and loan
amounts, assets as stated by the borrower. In Low Doc transactions,  independent
confirmation  of the  borrower's  source  of  income is  obtained.  The  Reduced
Documentation  program utilizes borrower paystubs and W-2 forms and a Streamline
Refinance   Documentation   program  utilizes  borrower  paystubs  and  original
appraised value with a current drive-by inspection.]

      The seller's  underwriting  of the mortgage loans consisted of an analysis
of the following applicant information:

          o    an applicant's income,  employment,  assets,  debts, payments and
               specific questions regarding credit history,

          o    an evaluation and confirmation of an applicant's credit history,

          o    the adequacy and stability of an applicant's income,  including a
               review  of the  documentation,  verification  of  employment  and
               income,  an analysis of tax returns and  statements of assets and
               liabilities.

                                      S-46
<PAGE>

          o    calculations are made to establish the relationship between fixed
               expenses  and gross  monthly  income,  which are reviewed for the
               applicant's  overall ability to repay the mortgage loan including
               other income sources,  commitment to the property as evidenced by
               loan to value,  other  liquid  resources,  ability to  accumulate
               assets and other compensating factors, and

          o    the adequacy of the mortgaged property to serve as collateral for
               a mortgage loan, including a physical inspection of the property,
               an  evaluation  of the  property's  value  for  recent  sales  of
               comparable   properties  and  its   conformity  to   neighborhood
               standards.

      [All  mortgage  loans are subject to a sampling by the  seller's  internal
Quality  Assurance  Department,  which  reviews  and  reverifies  a  statistical
sampling of loans on a regular basis. All loans with  loan-to-value  ratios over
80% have either private mortgage  insurance coverage in an amount meeting Fannie
Mae and Freddie Mac  requirements  or a higher  interest rate in lieu of private
mortgage  insurance.]  Adequate title insurance and hazard insurance is required
for all loans. From time to time, loan-to-value ratio exceptions may be made for
credit  worthy  applicants  who  exhibit  strong  compensating  factors and well
supported collateral valuations.

      [Environmental Assessments

      "Phase  I"  environmental   site  assessments  or  updates  of  previously
conducted assessments were performed on all but [ ] of the mortgaged properties,
which constitute [ ]% of the initial pool balance. "Phase II" environmental site
assessments  were performed on some mortgaged  properties.  These  environmental
site  assessments  were  performed for the seller or the report was delivered to
the seller as part of its  acquisition  or origination of the mortgage loan. For
all but [ ] of the mortgaged properties which represent [ ]% of the initial pool
balance,  these  environmental  assessments  were performed  during the 12-month
period before the cut-off date.

      Material adverse  environmental  conditions or  circumstances  revealed by
these  environmental  assessments for the mortgaged  properties are described in
"Risk  Factors--Adverse  environmental  conditions on the mortgaged property may
reduce or delay your payments."

      The information  contained in this  prospectus  supplement is based on the
environmental  assessments  and  has  not  been  independently  verified  by the
depositor, the seller, the servicer, the underwriters or any of their respective
affiliates.]

      [Property Condition Assessments

      Inspections or updates of previously conducted inspections of all except [
] of  the  mortgaged  properties,  which  constitute  [ ]% of the  initial  pool
balance,  were conducted in connection  with the  origination or the purchase of
the related  mortgage loan by  independent  licensed  engineers or architects or
both. For all but [ ] of the mortgaged  properties,  which secure mortgage loans
representing [ ]% of the initial pool balance,  the  inspections  were conducted
within the  12-month  period  before the cut-off  date for the related  mortgage
loan. The  inspections  were conducted to inspect the exterior  walls,  roofing,
interior  construction,  mechanical and

                                      S-47
<PAGE>

electrical  systems  and  general  condition  of the site,  buildings  and other
improvements  located at a mortgaged property.  The resulting reports on some of
the mortgaged  properties  indicated a variety of deferred maintenance items and
recommended capital expenditures. In some instances, repairs or maintenance were
completed  before closing or cash reserves were established to fund the deferred
maintenance or replacement items or both.]

      [Appraisals

      An appraisal  for each  mortgaged  property  was  performed or an existing
appraisal  updated in  connection  with the  origination  or the purchase of the
related mortgage loan. For all but [ ] of the mortgaged properties, which secure
mortgage  loans  representing  [ ]% of the initial pool balance,  the appraisals
were performed during the 12-month period before the cut-off date. The appraised
value of the  mortgaged  property or  properties  is greater  than the  original
principal  balance of the  mortgage  loan or the  aggregate  original  principal
balance of any set of cross-collateralized  loans. All appraisals were conducted
by an independent appraiser that is state certified or designated as a member of
the Appraisal  Institute.  The  appraisal for all but [ ] mortgaged  properties,
which constitute [ ]% of the initial pool balance, or a separate letter contains
a statement by the  appraiser  to the effect that the  appraisal  guidelines  of
Title XI of the Financial  Institutions Reform,  Recovery and Enforcement Act of
1989, were followed in preparing the appraisal.  However, none of the depositor,
the underwriters,  or the seller has independently  verified the accuracy of the
appraiser's statement. For a discussion of the risks related to appraisals,  see
"Risk  Factors--Losses  may result if the servicer is unable to sell a mortgaged
property  securing a defaulted  mortgage loan for its  appraised  value" in this
prospectus supplement.

      For information about the values of the mortgaged  properties available to
the depositor as of the cut-off date.]

[Hazard, Liability and Other Insurance

      The  mortgage  loans  typically  require  that the  mortgaged  property be
insured by a hazard  insurance  policy  with a  customary  deductible  and in an
amount at least equal to the lesser of the outstanding  principal balance of the
mortgage  loan  and  100%  of  the  full  insurable   replacement  cost  of  the
improvements  located  on the  mortgaged  property.  If  applicable,  the policy
contains  appropriate  endorsements to avoid the application of co-insurance and
does not permit reduction in insurance proceeds for depreciation.

      Flood  insurance,  if  available,  must be in  effect  for  any  mortgaged
property  that at the time of  origination  included any area  identified in the
Federal Register by the Federal  Emergency  Management  Agency as having special
flood hazards. The flood insurance policy must meet the requirements of the then
current  guidelines of the Federal  Insurance  Administration,  be provided by a
generally acceptable insurance carrier and be in an amount representing coverage
not less than the least of:

          o    the outstanding principal balance of the mortgage loan,

          o    the full insurable value of the mortgaged property,

                                      S-48
<PAGE>

          o    the maximum  amount of  insurance  available  under the  National
               Flood Insurance Act of 1968, and

          o    100% of the replacement cost of the  improvements  located on the
               mortgaged property, except in some cases where self-insurance was
               permitted.

      The standard form of hazard  insurance  policy  typically  covers physical
damage or destruction of the  improvements  on the mortgaged  property caused by
fire, lightning,  explosion, smoke, windstorm and hail, riot or strike and civil
commotion. The policies may contain some conditions and exclusions to coverage.

      Each   mortgage   typically   also   requires  the  borrower  to  maintain
comprehensive general liability insurance against claims for personal and bodily
injury,  death or  property  damage  occurring  on,  in or about  the  mortgaged
property in an amount customarily required by institutional lenders.

      Each mortgage  typically further requires the related borrower to maintain
business  interruption or rent loss insurance in an amount not less than 100% of
the  projected  rental income from the related  mortgaged  property for not less
than twelve months.

      The mortgaged  properties are typically not insured for  earthquake  risk.
For mortgaged properties located in California and some other seismic zones, the
seller typically conducted seismic studies to assess the "probable maximum loss"
for the  related  mortgaged  properties.  In  some  circumstances,  the  related
borrower  was required to obtain  earthquake  insurance  covering the  mortgaged
properties.  Some of these  mortgaged  properties  may be insured for earthquake
risk in amounts  less than the  outstanding  principal  balances of the mortgage
loan.]

      [Earnouts and Additional Collateral Loans

      Some of the mortgage  loans are  additionally  secured by cash reserves or
irrevocable  letters of credit that will be released  upon  satisfaction  by the
borrower  of  leasing-related  or other  conditions,  including,  in some cases,
achieving  specified debt service  coverage ratios or loan-to-value  ratios.  If
these  conditions are not met, under some mortgage loans, the related reserve or
credit  enhancement  amount will be applied to  partially  defease or prepay the
related mortgage loan. Any resulting  partial  prepayment may not be required to
be accompanied by payment of a prepayment premium or yield maintenance  payment.
Under [ ] mortgage loans, amounts will be retained as additional collateral.]

                             THE SELLER AND SERVICER

General

General

[____________________], is the seller and servicer for all the mortgage loans in
the mortgage pool.

                 [ADDITIONAL SERVICER INFORMATION TO BE INCLUDED]
                  ----------------------------------------------

                                      S-49
<PAGE>

                         DESCRIPTION OF THE CERTIFICATES

General

      The  Mortgage-Backed  Pass-Through  Certificates,   Series  200_-___  will
include the  following  [three]  classes of Class A  Certificates:

     o    [Class A-1 Certificates, or the Adjustable Rate Certificates

     o    Class A-2 Certificates; and

     o    Class A-3 Certificates, or the Lockout Certificates; and together with
          the Class A-2 Certificates, the Fixed Rate Certificates]

      In addition to the Class A Certificates,  the Mortgage-Backed Pass-Through
Certificates,  Series  200_-___ will also include [two] classes of  certificates
which are designated as the Class SB Certificates and Class R Certificates. Only
the  Class A  Certificates  are  offered  by  this  prospectus  supplement.  See
"Glossary" in the prospectus for the meanings of capitalized  terms and acronyms
not otherwise defined in this prospectus supplement.

      The certificates will evidence the entire beneficial ownership interest in
the trust fund. The trust fund will consist of:


          o    the mortgage loans

          o    the assets as from time to time that are  identified as deposited
               in respect of the mortgage loans in the Custodial  Account and in
               the Payment  Account and  belonging  to the trust fund

          o    property acquired by foreclosure of the mortgage loans or deed in
               lieu of foreclosure

          o    any  applicable  primary  insurance  policies and primary  hazard
               insurance policies

          o    the financial guaranty insurance policy; and

          o    all proceeds of any of the foregoing.

      The Class A Certificates will be available only in book-entry form through
facilities of The  Depository  Trust Company.  The Class A Certificates  will be
issued,  maintained and  transferred  on the  book-entry  records of DTC and its
participants.  The Class A Certificates will be issued in minimum  denominations
of $25,000 and integral multiples of $1 in excess thereof.



                                      S-50
<PAGE>

      The Class A Certificates  will be represented by one or more  certificates
registered in the name of the nominee of DTC. The depositor has been informed by
DTC that DTC's nominee will be Cede & Co. No  beneficial  owner will be entitled
to receive a  certificate  of any class in fully  registered  form, a definitive
certificate,   except  as  described  in  this   prospectus   supplement   under
"--Book-Entry  Registration  of Certain of the Offered  Certificates--Definitive
Certificates." Unless and until definitive certificates are issued for the Class
A  Certificates  under the limited  circumstances  described in this  prospectus
supplement:

          o    all references to actions by  certificateholders  with respect to
               the Class A Certificates shall refer to actions taken by DTC upon
               instructions from its participants, and

          o    all references in this  prospectus  supplement to  distributions,
               notices,   reports  and  statements  to  certificateholders  with
               respect to the Class A Certificates shall refer to distributions,
               notices, reports and statements to DTC or Cede, as the registered
               holder  of  the  Class  A  Certificates,   for   distribution  to
               beneficial owners by DTC in accordance with DTC procedures.

      According to DTC, the foregoing  information  with respect to DTC has been
provided  for  informational  purposes  only and is not  intended  to serve as a
representation, warranty or contract modification of any kind.

Book-Entry Registration of Certain of the Offered Certificates

      General.   Beneficial   owners  that  are  not  participants  or  indirect
participants but desire to purchase, sell or otherwise transfer ownership of, or
other interests in, the Class A Certificates may do so only through participants
and  indirect  participants.  In  addition,  beneficial  owners will receive all
distributions of principal of and interest on the Class A Certificates  from the
paying agent through DTC and  participants.  Accordingly,  beneficial owners may
experience  delays in their  receipt of  payments.  Unless and until  definitive
certificates are issued for the Class A Certificates, it is anticipated that the
only registered  certificateholder  of the Class A Certificates will be Cede, as
nominee of DTC.  Beneficial  owners will not be recognized by the trustee or the
servicer as certificateholders, as the term is used in the pooling and servicing
agreement,  and  beneficial  owners  will be  permitted  to receive  information
furnished to certificateholders and to exercise the rights of certificateholders
only indirectly through DTC, its participants and indirect participants.

      Under the rules, regulations and procedures creating and affecting DTC and
its  operations,  DTC is required to make  book-entry  transfers  of the Class A
Certificates  among  participants  and to receive and transmit  distributions of
principal  of, and  interest  on,  the Class A  Certificates.  Participants  and
indirect participants with which beneficial owners have accounts with respect to
the Class A Certificates similarly are required to make book-entry transfers and
receive and  transmit  distributions  on behalf of their  respective  beneficial
owners.  Accordingly,  although  beneficial  owners  will not  possess  physical
certificates evidencing their interests in the Class A Certificates, DTC's rules
provide a mechanism by which beneficial  owners,  through their participants and
indirect  participants,  will receive distributions and will be able to transfer
their interests in the Class A Certificates.

                                      S-51
<PAGE>

      None of the depositor, the servicer or the trustee will have any liability
for any actions  taken by DTC or its  nominee,  including,  without  limitation,
actions for any aspect of the records relating to or payments made on account of
beneficial  ownership  interests in the Class A  Certificates  held by Cede,  as
nominee  for DTC,  or for  maintaining,  supervising  or  reviewing  any records
relating to such beneficial ownership interests.

      Definitive  Certificates.   Definitive  certificates  will  be  issued  to
beneficial  owners or their  nominees,  respectively,  rather than to DTC or its
nominee,  only under the limited  conditions  described in the prospectus  under
"Description of the Certificates--Form of Certificates."

      Upon the  occurrence of an event  described in the prospectus in the third
paragraph under  "Description of the  Certificates--Form  of Certificates,"  the
trustee is required to notify,  through DTC,  participants who have ownership of
Class A Certificates  as indicated on the records of DTC of the  availability of
definitive certificates for their Class A Certificates. Upon surrender by DTC of
the  definitive  certificates  representing  the Class A  Certificates  and upon
receipt of instructions from DTC for  re-registration,  the trustee will reissue
the Class A  Certificates  as definitive  certificates  issued in the respective
principal  amounts owned by individual  beneficial  owners,  and  thereafter the
trustee  and  the  servicer  will   recognize  the  holders  of  the  definitive
certificates as certificateholders under the pooling and servicing agreement.

      For   additional   information   regarding  DTC  and  the  DTC  registered
certificates, see "Description of the Certificates--Form of Certificates" in the
prospectus.

Glossary of Terms

      The  following  terms are given the meanings  shown below to help describe
the cash flows on the certificates:

      Accrued  Certificate  Interest  - For any  distribution  date and class of
Class A  Certificates,  an amount equal to interest  accrued  during the related
Interest Accrual Period on the Certificate Principal Balance of the certificates
of that  class  immediately  prior  to  that  distribution  date at the  related
pass-through rate less interest  shortfalls,  if any, allocated thereto for that
distribution  date,  to the  extent  not  covered  with  respect  to the Class A
Certificates  by  the  subordination  provided  by  the  Class  SB  Certificates
including:

           (i) any  Prepayment  Interest  Shortfall to the extent not covered by
      the servicer as described in this prospectus supplement under "Description
      of the Certificates--Interest Distributions";

           (ii) the interest portions of Realized Losses, including Excess
      Special Hazard Losses, Excess Fraud Losses, Excess Bankruptcy Losses, and
      Extraordinary Losses not allocated through subordination;

           (iii)the interest portion of any Advances that were made with respect
      to  delinquencies  that were  ultimately  determined to be Excess  Special
      Hazard  Losses,   Excess  Fraud  Losses,   Excess   Bankruptcy  Losses  or
      Extraordinary Losses; and

                                      S-52
<PAGE>

           (iv) any other  interest  shortfalls  not  covered by  subordination,
      including interest shortfalls relating to the Soldiers' and Sailors' Civil
      Relief Act of 1940, or Relief Act, or similar  legislation or regulations,
      all allocated as described below.

Any  reductions   will  be  allocated  among  the  holders  of  all  classes  of
certificates  in proportion  to the  respective  amounts of Accrued  Certificate
Interest  that would have been  payable on that  distribution  date absent these
reductions.  In the  event  that  any  shortfall  described  in the  immediately
preceding  four clauses above is allocated to the offered  certificates,  or the
Available Distribution Amount on any distribution date is less than the Interest
Distribution  Amount due on any  distribution  date, the amount of any shortfall
will be drawn under the financial  guaranty  insurance policy and distributed to
the  holders of the Class A  Certificates.  Notwithstanding  the  foregoing,  if
payments are not made as required under the financial guaranty insurance policy,
any  interest  shortfalls  may be  allocated  to the  Class  A  Certificates  as
described above.  See "--Financial  Guaranty  Insurance  Policy" below.  Accrued
Certificate  Interest on each class of Class A Certificates  will be distributed
on a pro rata basis. Accrued Certificate Interest on the Class A-2 and Class A-3
Certificates  is calculated on the basis of a 360-day year  consisting of twelve
30-day months.  Accrued Certificate  Interest on the Class A-1 Certificates will
be calculated on the basis of the actual number of days in the Interest  Accrual
Period and a 360-day year.

      Available Distribution Amount - For any distribution date, an amount equal
      to:

          o    the aggregate amount of scheduled  payments on the mortgage loans
               due on the  related  due  date  and  received  on or prior to the
               related  determination  date,  after  deduction  of  the  related
               servicing fees and any subservicing  fees, which are collectively
               referred to as the servicing fees, and the premium payable on the
               financial guaranty insurance policy;

          o    all unscheduled payments,  including mortgagor prepayments on the
               mortgage  loans,  Insurance  Proceeds,  Liquidation  Proceeds and
               proceeds from repurchases of and  substitutions  for the mortgage
               loans occurring during the preceding calendar month; and

          o    all Advances made for that distribution date, in each case net of
               amounts   reimbursable   therefrom   to  the   servicer  and  any
               subservicer.

      In  addition  to  the  foregoing  amounts,  with  respect  to  unscheduled
collections,  not  including  mortgagor  prepayments,  the servicer may elect to
treat such  amounts as included  in the  Available  Distribution  Amount for the
distribution  date in the month of receipt,  but is not  obligated  to do so. As
described in this prospectus supplement under "--Principal  Distributions on the
Class A Certificates," any amount with respect to which such election is so made
shall be  treated  as  having  been  received  on the last day of the  preceding
calendar  month for the  purposes of  calculating  the amount of  principal  and
interest  distributions  to any  class  of  certificates.  With  respect  to any
distribution  date,  the due date is the first  day of the  month in which  that
distribution date occurs and the determination date is the 20th day of the month
in which that  distribution  date occurs or, if that day is not a business  day,
the immediately succeeding business day.

                                      S-53
<PAGE>

      On any distribution  date, the policy premium rate is equal to one-twelfth
of the  product of the  percentage  specified  in the  Insurance  and  Indemnity
Agreement,  dated as of ______,  ____ among the financial guaranty insurer,  the
depositor,  the  trustee,  the  seller  and  the  servicer,  and  the  aggregate
Certificate  Principal Balance of the Class A Certificates  immediately prior to
such distribution date.

      Certificate Principal Balance - For any Class A Certificate as of any date
of determination,  an amount equal to the initial Certificate  Principal Balance
of that  certificate,  reduced by the aggregate of (a) all amounts  allocable to
principal  previously  distributed with respect to that  certificate,  including
amounts paid pursuant to the financial  guaranty  insurance policy,  and (b) any
reductions in the Certificate  Principal  Balance of that certificate  deemed to
have occurred in connection  with  allocations of Realized  Losses in the manner
described in this prospectus  supplement,  other than any amounts that have been
paid pursuant to the financial guaranty insurance policy.

      Cumulative  Insurance  Payments - The  aggregate of any payments made with
respect to the Class A Certificates by the financial  guaranty insurer under the
financial guaranty insurance policy.

      Excess Bankruptcy Losses - Bankruptcy Losses in excess of the Bankruptcy
Amount.

      Excess Cash Flow-On any  distribution  date,  the excess of the  Available
Distribution Amount over the sum of (a) the Interest Distribution Amount and (b)
the sum of the amounts  described in clauses [ ] of the  definition of Principal
Distribution Amount.

      Excess Fraud Losses - Fraud Losses in excess of the Fraud Loss Amount.

      Excess  Special  Hazard  Losses - Special  Hazard  Losses in excess of the
Special Hazard Amount.

      Excess Subordinated Amount - On any distribution date, the excess, if any,
of (a) the Subordinated  Amount on such  distribution date over (b) the Targeted
Subordinated Amount.

      Final  Disposition - A Final Disposition is deemed to have occurred upon a
determination  by the  servicer  that it has received  all  Insurance  Proceeds,
Liquidation  Proceeds and other payments or cash  recoveries  which the servicer
reasonably and in good faith expects to be finally recoverable with respect to a
defaulted mortgage loan.

      Interest  Accrual  Period - For the Class A-2 and Class A-3  Certificates,
the calendar month  preceding the month in which the  distribution  date occurs.
For the Class A-1  Certificates,  (a) for the  distribution  date in __________,
___, the period  commencing  on the closing date and ending on the day preceding
the distribution  date in ________ ___, and (b) with respect to any distribution
date after the distribution  date in _________ ___, the period commencing on the
distribution  date in the  month  immediately  preceding  the month in which the
distribution date occurs and ending on the day preceding the distribution date.

      Interest Distribution Amount - The aggregate amount of Accrued Certificate
Interest to be distributed  to the holders of the Class A Certificates  for that
distribution date.

                                      S-54
<PAGE>

      Lockout Prepayment  Percentage - For any distribution date occurring prior
to the distribution  date in , 0%. For any distribution date occurring after the
first five years following the closing date, a percentage determined as follows:

          o    for any  distribution  date  during  the  [sixth]  year after the
               closing date, [30]%;

          o    for any  distribution  date during the  [seventh]  year after the
               closing date, [40]%;

          o    for any  distribution  date  during the  [eighth]  year after the
               closing date, [60]%;

          o    for any  distribution  date  during  the  [ninth]  year after the
               closing date, [80]%; and

          o    for any distribution date thereafter, [100]%.

      Lockout  Scheduled  Percentage - For any distribution date occurring prior
to the distribution date in , 0% and for any distribution date thereafter, 100%.

      Principal Distribution Amount -On any distribution date, the lesser of (a)
the balance of the Available  Distribution  Amount  remaining after the Interest
Distribution Amount has been distributed and (b) the sum of:

           (1) the principal  portion of all scheduled  monthly  payments on the
      mortgage  loans  received  or  advanced  with  respect to the  related due
      period;

           (2) the  principal  portion  of all  proceeds  of the  repurchase  of
      mortgage loans or, in the case of a substitution,  amounts  representing a
      principal  adjustment as required by the pooling and  servicing  agreement
      during the preceding calendar month;

           (3)  the  principal  portion  of all  other  unscheduled  collections
      received on the mortgage  loans  during the  preceding  calendar  month or
      deemed to be  received  during the  preceding  calendar  month  including,
      without  limitation,  full and partial  prepayments made by the respective
      mortgagors, to the extent not distributed in the preceding month;

           (4) the  principal  portion of any  Realized  Losses  incurred on the
      mortgage loans for the preceding calendar month to the extent payable from
      Excess Cash Flow on such distribution date; and

           (5)  the Subordination Increase Amount for such distribution date.

      Subordinated Amount - On any distribution date, the excess, if any, of (a)
the  aggregate  Stated  Principal  Balances of the  mortgage  loans after giving
effect to distributions of principal to be made on such  distribution  date over
(b) the  Certificate  Principal  Balance of the Class A Certificates  as of such
date,  after taking into account the payment to the Class A Certificates  of the
amounts  described in clauses [ ] of the  definition  of Principal  Distribution
Amount on such distribution date.

      Subordination  Increase Amount - On any  distribution  date, any amount of
Excess Cash Flow actually applied as an accelerated  payment of principal on the
Class A Certificates.

                                      S-55
<PAGE>

      Subordination  Reduction Amount - On any distribution  date, the lesser of
(a) the Excess Subordinated Amount and (b) the amount available for distribution
specified in clauses [ ] of the definition of Principal Distribution Amount.

      Targeted  Subordinated  Amount - On any  distribution  date,  the required
level of the  Subordinated  Amount,  as set forth in the Pooling  and  Servicing
Agreement.

Distributions

      Distributions  on the Class A Certificates  will be made by the trustee on
the [ ] day of each month or, if that day is not a business  day,  then the next
succeeding  business  day,  commencing  in _______,  [ ].  Distributions  on the
certificates  will be made to the  persons in whose names the  certificates  are
registered at the close of business on the day prior to each  distribution  date
or, if the certificates are no longer DTC registered certificates, on the record
date. See  "Description of the  Certificates--Distributions  on Certificates" in
the prospectus.  Distributions  will be made by check or money order mailed,  or
upon the  request of a  certificateholder  owning  Class A  Certificates  having
denominations,  aggregating at least $1,000,000,  by wire transfer or otherwise,
to the address of the person entitled to the distribution, which, in the case of
DTC registered  certificates,  will be DTC or its nominee,  as it appears on the
trustee's  register  in  amounts  calculated  as  described  in this  prospectus
supplement on the determination date. However,  the final distribution  relating
to the certificates will be made only upon presentation and surrender thereof at
the  office  or  the  agency  of  the  trustee   specified   in  the  notice  to
certificateholders  of the final  distribution.  A business day is any day other
than:

          o    a Saturday or Sunday or

          o    a day on which banking  institutions  in the State of New York, [
               ], [ ] or [ ] are required or authorized by law to be closed.

[Distributions of Prepayment Premiums

      Any prepayment  premium  actually  collected on a mortgage loan during any
collection  period will be distributed on the related  distribution  date to the
holders of the [Class A-1, Class A-2, A-3]  Certificates as additional  interest
and not in  reduction of their  certificate  balances in an amount up to, in the
case of each class, the product of

the prepayment    x     discount rate      x         principal
   premium               fraction for           allocation fraction
                          that class               of that class

      The discount rate fraction for any class of certificates is a fraction not
greater than 1.0 or less than 0.0 and equal to:

           pass-through rate for
           that class of certificates - relevant  discount rate
           ___________________________________________________________________
           mortgage rate of the related mortgage loan -relevant discount rate

      The principal  allocation  fraction for each class of certificates for any
distribution date is:

                                      S-56
<PAGE>

           the portion,  if any, of the principal  distribution amount allocated
           to that  class of  certificates  for that  distribution  date
           ____________________________________________________________________
           entire Principal Distribution Amount for that distribution date

      The portion of the prepayment  premium  remaining after the payment of the
amount  calculated as described  above will be distributed to the holders of the
Class [ ] Certificates.

      For any prepaid mortgage loan, the discount rate means the yield for "This
Week" as reported by the Federal  Reserve Board in Federal  Reserve  Statistical
Release   H.15(519)  for  the  constant  maturity  treasury  having  a  maturity
coterminous  with  the  maturity  date  or  anticipated  repayment  date of that
mortgage  loan as of the  determination  date.  If there is no discount rate for
instruments having a maturity coterminous with the remaining term to maturity or
anticipated  repayment date,  where  applicable,  of the mortgage loan, then the
discount  rate will be equal to the  linear  interpolation  of the yields of the
constant  maturity  treasuries  with maturities next longer and shorter than the
remaining  term to  maturity  or  anticipated  repayment  date.  For some of the
mortgage loans, the discount rate is a semiannual rate.

      The prepayment  premiums,  if any,  collected on the mortgage loans during
any   collection   period   may   not  be   sufficient   to   fully   compensate
certificateholders  of any  class  for any  loss in  yield  attributable  to the
related prepayments of principal.]

Interest Distributions

      Holders of each class of Class A Certificates  will be entitled to receive
interest distributions in an amount equal to the Accrued Certificate Interest on
that  class  on  each  distribution   date,  to  the  extent  of  the  Available
Distribution  Amount  for  that  distribution  date,  commencing  on  the  first
distribution date in the case of all classes of Class A Certificates entitled to
interest distributions.

      Prepayment Interest Shortfalls will result because interest on prepayments
in full is distributed  only to the date of prepayment,  and because no interest
is distributed on prepayments in part, as these  prepayments in part are applied
to reduce the outstanding  principal balance of the related mortgage loans as of
the due date in the month of prepayment.

      However,  on any  distribution  date, any Prepayment  Interest  Shortfalls
resulting from  prepayments in full during the preceding  calendar month will be
offset  by the  servicer,  but  only to the  extent  those  Prepayment  Interest
Shortfalls  do  not  exceed  the  amount  of  the  servicing  fee  due  on  such
distribution  date.   Prepayment  Interest  Shortfalls  resulting  from  partial
prepayments  will not be offset by the servicer from servicing  compensation  or
otherwise.  No assurance can be given that the servicing  compensation available
to  cover  Prepayment  Interest  Shortfalls  will be  sufficient  therefor.  See
"Pooling and Servicing  Agreement--Servicing  and Other Compensation and Payment
of Expenses" in this prospectus supplement.

      [If on any  distribution  date the Available  Distribution  Amount is less
than  Accrued  Certificate  Interest  on  the  Class  A  Certificates  for  that
distribution  date,  the  shortfall  will be

                                      S-57
<PAGE>

allocated among the holders of all classes of Class A Certificates in proportion
to the respective amounts of Accrued Certificate  Interest for that distribution
date. In addition,  the amount of any such interest  shortfalls that are covered
by  subordination,  specifically,  interest  shortfalls  not  described  in  the
definition of Available Distribution Amount preceding paragraph,  will be unpaid
Accrued  Certificate  Interest  and  will be  distributable  to  holders  of the
certificates   of  those  classes   entitled  to  those  amounts  on  subsequent
distribution dates, in each case to the extent of available funds after interest
distributions as required in this prospectus supplement.

      These  shortfalls  could  occur,  for  example,  if  delinquencies  on the
mortgage loans were  exceptionally  high and were  concentrated  in a particular
month and Advances by the servicer did not cover the  shortfall.  Any amounts so
carried  forward will not bear  interest.  Any interest  shortfalls  will not be
offset  by a  reduction  in  the  servicing  compensation  of  the  servicer  or
otherwise,  except to the limited  extent  described in the preceding  paragraph
with respect to Prepayment  Interest  Shortfalls  resulting from  prepayments in
full.

      The pass-through rates on all classes of Class A Certificates,  other than
the  Class  A-1  Certificates,  are  fixed  and  are  listed  on page S- of this
prospectus supplement.

      The  pass-through  rates on the Class A-1  Certificates  are calculated as
follows:

      The pass-through  rate on the Class A-1  Certificates  with respect to the
initial  Interest  Accrual Period is % per annum, and as to any Interest Accrual
Period thereafter,  will be a per annum rate equal to % plus the arithmetic mean
of the  London  interbank  offered  rate  quotations  for  one-month  Eurodollar
deposits,  determined monthly as described in this prospectus supplement, with a
maximum rate of % per annum and a minimum rate of % per annum.

      The  pass-through  rates on the Class A-1 Certificates for the current and
immediately preceding Interest Accrual Period may be obtained by telephoning the
trustee at __________.]

      [The  pass-through  rates on all classes of the Class A Certificates  will
increase  by  __%  per  annum  for  each   distribution  date  after  the  first
distribution  date on which the  servicer  and the  depositor  are  permitted to
exercise their option to purchase the mortgage loans from the trust as described
under  "Pooling  and  Servicing   Agreement--Termination,"  in  this  prospectus
supplement. Notwithstanding the foregoing, the pass-through rates on the Class A
Certificates  will not  increase as  described  above if proceeds  for  optional
termination are available for payment to the  certificateholders  on or prior to
any distribution date.]

      As  described  in this  prospectus  supplement,  the  Accrued  Certificate
Interest  allocable to each class of  certificates  is based on the  Certificate
Principal Balance of that class.

Determination of LIBOR

      LIBOR for any Interest  Accrual Period after the initial  Interest Accrual
Period will be determined as described in the three succeeding paragraphs.

      On each  distribution  date, LIBOR shall be established by the trustee and
as to any Interest  Accrual Period,  LIBOR will equal the rate for United States
dollar  deposits for one month which


                                      S-58
<PAGE>

appears on the Dow Jones  Telerate  Screen  Page 3750 as of 11:00  A.M.,  London
time,  on the second LIBOR  Business Day prior to the first day of that Interest
Accrual  Period--the LIBOR rate adjustment date. Telerate Screen Page 3750 means
the display designated as page 3750 on the Telerate Service or any other page as
may  replace  page 3750 on that  service for the  purpose of  displaying  London
interbank offered rates of major banks. If the rate does not appear on that page
or any other page as may replace that page on that service, or if the service is
no longer offered, any other service for displaying LIBOR or comparable rates as
may be selected by the trustee after  consultation  with the servicer,  the rate
will be the reference bank rate.

      The  reference  bank rate will be  determined on the basis of the rates at
which  deposits in the U.S.  Dollars are offered by the reference  banks,  which
shall be three  major  banks  that are  engaged  in  transactions  in the London
interbank market,  selected by the trustee after consultation with the servicer.
The reference bank rate will be determined as of 11:00 A.M., London time, on the
day  that  is  one  LIBOR  business  day  prior  to  the  immediately  preceding
distribution  date to prime banks in the London interbank market for a period of
one month in amounts  approximately equal to the aggregate Certificate Principal
Balance of the Class A-1 Certificates then outstanding. The trustee will request
the  principal  London  office  of each of the  reference  banks  to  provide  a
quotation of its rate. If at least two quotations are provided, the rate will be
the arithmetic mean of the quotations. If on that date fewer than two quotations
are provided as  requested,  the rate will be the  arithmetic  mean of the rates
quoted by one or more major  banks in New York  City,  selected  by the  trustee
after  consultation with the servicer,  as of 11:00 A.M., New York City time, on
that date for loans in U.S.  Dollars to leading  European  banks for a period of
one month in amounts  approximately equal to the aggregate Certificate Principal
Balance of the Class A-1 Certificates then outstanding.  If no quotations can be
obtained, the rate will be LIBOR for the prior distribution date, or in the case
of the  first  LIBOR  rate  adjustment  date,  % with  respect  to the Class A-1
Certificates;  provided  however,  if, under the priorities listed previously in
this  paragraph,  LIBOR for a distribution  date would be based on LIBOR for the
previous  distribution  date for the third  consecutive  distribution  date, the
trustee shall select an alternative  comparable index over which the trustee has
no control,  used for  determining  one-month  Eurodollar  lending rates that is
calculated and published or otherwise  made  available by an independent  party.
LIBOR business day means any day other than (i) a Saturday or a Sunday or (ii) a
day on which banking institutions in the city of London, England are required or
authorized by law to be closed.

      The  establishment  of LIBOR by the trustee and the  trustee's  subsequent
calculation of the  pass-through  rates applicable to the Class A-1 Certificates
for the relevant Interest Accrual Period, in the absence of manifest error, will
be final and binding.

Principal Distributions on the Class A Certificates

      Except as  provided  below,  holders of the Class A  Certificates  will be
entitled to receive on each distribution date, in the priority described in this
prospectus  supplement  and  to  the  extent  of the  portion  of the  Available
Distribution   Amount   remaining   after  the   distribution  of  the  Interest
Distribution Amount is distributed,  a distribution allocable to principal equal
to the Principal Distribution Amount.

                                      S-59
<PAGE>

      Distributions   of  principal  on  the  Class  A   Certificates   on  each
distribution date will be made, after distribution of the Interest  Distribution
Amount, as follows:

           (i) the Principal  Distribution  Amount to the Class A-3 Certificates
      in reduction of its Certificate  Principal Balance,  until its Certificate
      Principal  Balance has been reduced to zero, an amount equal to the sum of
      the following:

                (A)  the  Lockout   Scheduled   Percentage   of  the  Class  A-3
           Certificates'  pro rata  share,  based on its  Certificate  Principal
           Balance relative to the aggregate  Certificate  Principal  Balance of
           all  classes  of  Certificates,  of  the  aggregate  of  the  amounts
           described in clauses [ ] of the definition of Principal  Distribution
           Amount; and

                (B)  the  Lockout   Prepayment   Percentage  of  the  Class  A-3
           Certificates'  pro rata  share,  based on its  Certificate  Principal
           Balance relative to the aggregate  Certificate  Principal  Balance of
           all classes of Class A Certificates,  of the aggregate of the amounts
           described in clause [ ] of the  definition of Principal  Distribution
           Amount;

provided  that if the  aggregate of the amounts set forth in the  definition  of
Principal  Distribution  Amount  is  more  than  the  balance  of the  Available
Distribution  Amount remaining after the Interest  Distribution  Amount has been
distributed, the amount paid to the Class A-3 Certificates under this clause (i)
shall be  reduced  by an amount  equal to the Class A-3  Certificates'  pro rata
share,  based on its aggregate  Certificate  Principal  Balance  relative to the
aggregate  Certificate  Principal  Balance of the Class A  Certificates  of that
difference; and

           (ii) the balance of the Principal Distribution Amount remaining after
      the  distributions,  if any,  described  in  clause  (i)  above  shall  be
      distributed in the following order of priority:

                (A) first,  concurrently,  Class A-1 and Class A-2 Certificates,
           on a pro rata basis, until their Certificate  Principal Balances have
           been reduced to zero; and

                (B) second, to the Class A-3 Certificates  until its Certificate
           Principal Balance has been reduced to zero.]

      On each  distribution  date,  the  financial  guaranty  insurer  shall  be
entitled  to receive,  after  payment to the Class A  Certificateholders  of the
Interest  Distribution  Amount and the  Principal  Distribution  Amount for such
distribution date, but before application of any Subordination  Increase Amount,
from the Excess Cash Flow to the extent available therefor, the aggregate of any
payments made with respect to the Class A Certificates by the financial guaranty
insurer  under  the  financial  guaranty  insurance  policy  to the  extent  not
previously reimbursed, plus interest thereon.

Overcollateralization Provisions



                                      S-60
<PAGE>

      The Pooling and Servicing  Agreement  requires that, on each  distribution
date,  Excess  Cash Flow,  if any,  be applied on such  distribution  date as an
accelerated  payment  of  principal  on the  Class A  Certificates,  but only as
follows:  The Excess Cash Flow for any  distribution  date will derive primarily
from the amount of interest  accrued on the mortgage  loans in excess of the sum
of (a) interest at the related  pass-through rates on the Certificate  Principal
Balances of the Class A  Certificates,  (b) the premium payable on the financial
guaranty  insurance  policy in respect  of the  mortgage  loans and (c)  accrued
servicing fees in respect of the mortgage loans, in each case in respect of such
distribution  date. Excess Cash Flow will be applied on any distribution date as
follows:

          o    first,  to pay to the  holders  of the Class A  Certificates  the
               principal  portion of Realized  Losses  incurred on the  mortgage
               loans for the preceding calendar month;

          o    second,  to pay to the financial  guaranty insurer any Cumulative
               Insurance Payments;

          o    third, to pay any Subordination Increase Amount;

          o    fourth, to pay the holders of the Class A Certificates the amount
               of any Prepayment Interest  Shortfalls  allocated thereto, to the
               extent  not  covered  by  the   Servicing  Fee  payable  on  such
               distribution date;

          o    fifth,  to pay  the  holders  of the  Class  A  Certificates  any
               Prepayment  Interest  Shortfalls   remaining  unpaid  from  prior
               distribution dates together with interest thereon; and

          o    sixth,  to pay to the  holders of the Class SB  Certificates  and
               Class R Certificates  any balance  remaining,  in accordance with
               the terms of the Pooling and Servicing Agreement.

The  application  of Excess Cash Flow to the payment of principal on the Class A
Certificates  has the effect of  accelerating  the  amortization  of the Class A
Certificates relative to the amortization of the mortgage loans.

      The Pooling and Servicing Agreement requires that the Excess Cash Flow, to
the extent  available  as  described  above,  will be applied as an  accelerated
payment of principal on the Class A Certificates to the extent that the Targeted
Subordinated  Amount  exceeds the  Subordinated  Amount as of such  distribution
date.

      Subordination   Reduction   Amount:   In  the  event  that  the   Targeted
Subordinated  Amount is permitted  to decrease or "step down" on a  distribution
date  in the  future,  a  portion  of the  principal  that  would  otherwise  be
distributed to the holders of the Class A Certificates on such distribution date
shall not be  distributed  to the  holders of the Class A  Certificates  on such
distribution date. This has the effect of decelerating  principal  distributions
to the Class A Certificates  relative to the amortization of the mortgage loans,
and of reducing the  Subordinated  Amount.  If, on any  distribution  date,  the
Excess  Subordinated  Amount  is,  or,  after  taking  into  account  all  other
distributions to be made on such  distribution  date would be, greater than zero
(i.e.,  the  Subordinated  Amount  is or would  be  greater  than  the  Targeted
Subordinated  Amount),

                                      S-61
<PAGE>

then any amounts  relating to principal  which would otherwise be distributed to
the holders of the Class A Certificates on such  distribution date shall instead
be distributed to the holders of the Class SB Certificates in an amount equal to
the Subordination Reduction Amount for such distribution date.

Financial Guaranty Insurance Policy

      The  following  summary of the terms of the financial  guaranty  insurance
policy does not  purport to be  complete  and is  qualified  in its  entirety by
reference to the financial guaranty insurance policy. The following  information
regarding  the  financial  guaranty  insurance  policy has been  supplied by the
financial guaranty insurer for inclusion in this prospectus supplement.

      Glossary of Terms:  As used in this section and in the financial  guaranty
insurance policy, the following terms shall have the following meanings:

          o    Agreement  - The  Pooling and  Servicing  Agreement,  dated as of
               _________,  _____, among the depositor,  the Seller, the Servicer
               and the trustee,  without  regard to any  amendment or supplement
               thereto  unless such amendment or supplement has been approved in
               writing by the financial guaranty insurer.

          o    Business  Day - Any day other than a Saturday,  a Sunday or a day
               on which banking  institutions in New York City or in the city in
               which  the  corporate  trust  office  of the  trustee  under  the
               Agreement  or the  financial  guaranty  insurer  is  located  are
               authorized or obligated by law or executive order to close.

          o    Deficiency  Amount - For the related Class A  Certificates  as of
               any distribution  date, (i) any shortfall in amounts available in
               the Payment  Account to pay interest  accrued during the Interest
               Accrual Period on the Certificate  Principal Balance of the Class
               A Certificates  at the applicable  Pass-Through  Rate, net of any
               interest shortfalls relating to the Relief Act and any Prepayment
               Interest Shortfalls  allocated to the Class A Certificates,  (ii)
               the principal portion of any Realized Loss allocated to the Class
               A Certificates and (iii) the Certificate Principal Balance of the
               Class  A   Certificates   to  the  extent  unpaid  on  the  final
               distribution  date  or  earlier  termination  of the  trust  fund
               pursuant  to  the  terms  of  the  Agreement.   For  purposes  of
               determining the Deficiency  Amount,  the final  distribution date
               will be the distribution date in ____________.

          o    Holder - Any person who is the registered or beneficial  owner of
               any Class A Certificate  and who, on the applicable  distribution
               date, is entitled under the terms of the Class A Certificates  to
               payment thereunder.

          o    Insured  Amount - As of any  distribution  date,  any  Deficiency
               Amount.

          o    Notice - The telephonic or telegraphic notice, promptly confirmed
               in writing  by  telecopy  substantially  in the form of Exhibit A
               attached to the financial guaranty insurance policy, the original
               of which is  subsequently  delivered by  registered  or



                                      S-62
<PAGE>

     certified  mail from the trustee  specifying the Insured Amount which shall
     be due and owing on the applicable distribution date.

      Capitalized terms used in the financial  guaranty insurance policy and not
otherwise  defined in the  financial  guaranty  insurance  policy shall have the
meanings set forth in the Agreement as of the date of execution of the financial
guaranty insurance policy,  without giving effect to any subsequent amendment to
or modification of the Agreement  unless the amendment or modification  has been
approved in writing by the financial guaranty insurer.

      The financial  guaranty  insurer,  in  consideration of the payment of the
premium  and subject to the terms of the related  financial  guaranty  insurance
policy, thereby unconditionally and irrevocably guarantees to any Holder that an
amount  equal  to each  full and  complete  Insured  Amount  will be paid to the
trustee or its  successor,  as trustee for the Holders.  The financial  guaranty
insurer's  obligations  under each  financial  guaranty  insurance  policy for a
particular  Insured  Amount shall be discharged to the extent funds equal to the
applicable Insured Amount are received by the trustee, whether or not such funds
are properly  applied by the trustee.  Insured Amounts shall be paid only at the
time set forth in each financial  guaranty  insurance policy, and no accelerated
Insured  Amounts  shall be paid  regardless of any  acceleration  of the Class A
Certificates,  unless such  acceleration  is at the sole option of the financial
guaranty  insurer.  The financial  guaranty  insurance policy does not cover any
interest   shortfalls   relating  to  the  Relief  Act  or  Prepayment  Interest
Shortfalls.

      Notwithstanding the foregoing paragraph,  the financial guaranty insurance
policy does not cover shortfalls,  if any,  attributable to the liability of the
trust fund, any REMIC or the trustee for withholding  taxes,  if any,  including
interest and penalties in respect of any such liability.

      The  financial  guaranty  insurer will pay any amounts  payable  under the
financial  guaranty  insurance  policy no later than 12:00  noon,  New York City
time,  on the later of the  distribution  date on which the  related  Deficiency
Amount,  as defined below,  is due or the Business Day following  receipt in New
York,  New York on a Business Day of a Notice;  provided  that if such Notice is
received  after 12:00 noon, New York City time, on such Business Day, it will be
deemed to be received on the following Business Day. If any such Notice received
is not in proper form or is otherwise  insufficient  for the purpose of making a
claim under the financial  guaranty  insurance  policy it shall be deemed not to
have been received for purposes of this  paragraph,  and the financial  guaranty
insurer  shall  promptly  so advise the  trustee  and the  trustee may submit an
amended Notice.

      Insured Amounts due under the financial guaranty insurance policy,  unless
otherwise stated in the financial guaranty insurance policy, are to be disbursed
by the  financial  guaranty  insurer to the  trustee on behalf of the Holders by
wire  transfer  of  immediately  available  funds in the  amount of the  Insured
Amount.

      The financial guaranty insurance policy is being issued under and pursuant
to and shall be  construed  under,  the laws of the  State of New York,  without
giving effect to the conflict of laws principles thereof.

                                      S-63
<PAGE>

      The financial  guaranty insurance policy is not cancelable for any reason.
The premium on the financial guaranty insurance policy is not refundable for any
reason including payment, or provision being made for payment, prior to maturity
of the related Class A Certificates.

Allocation of Losses; Subordination

      Subject to the terms thereof, the financial guaranty insurance policy will
cover all Realized Losses allocated to the Class A Certificates. If payments are
not made as required under the financial  guaranty  insurance  policy,  Realized
Losses will be  allocable  to the Class A  Certificates  based on the  following
priorities.

      The  subordination  provided to the Class A  Certificates  by the Class SB
Certificates will cover Realized Losses on the mortgage loans that are Defaulted
Mortgage Losses, Fraud Losses,  Bankruptcy Losses and Special Hazard Losses. Any
Realized Losses which are not Excess Special Hazard Losses, Excess Fraud Losses,
Excess Bankruptcy Losses or Extraordinary Losses will be allocated as follows:

          o    first, to the Excess Cash Flow for the related distribution date;
               and

          o    second, to the Class SB Certificates

and the  remainder of the Realized  Losses  among all the  remaining  classes of
Class A Certificates on a pro rata basis.

      Any allocation of a Realized Loss, other than a Debt Service Reduction, to
a certificate will be made by reducing:

          o    its Certificate  Principal Balance,  in the case of the principal
               portion of the Realized Loss, in each case until the  Certificate
               Principal Balance of that class has been reduced to zero, and

          o    the  Accrued  Certificate  Interest  thereon,  in the case of the
               interest portion of the Realized Loss, by the amount so allocated
               as of the distribution  date occurring in the month following the
               calendar month in which the Realized Loss was incurred.

In addition, any allocation of a Realized Loss to a Class A Certificate may also
be made  by  operation  of the  payment  priority  to the  Class A  Certificates
described under "--Principal  Distributions on the Class A Certificates" in this
prospectus supplement.

      As  used  in  this  prospectus  supplement,  subordination  refers  to the
provisions  discussed  above for the  sequential  allocation of Realized  Losses
among the various classes, as well as all provisions effecting those allocations
including the priorities for distribution of cash flows in the amounts described
in this prospectus supplement.

      As described in the  prospectus,  in some  circumstances  the servicer may
permit a servicing  modification--the  modification of a defaulted mortgage loan
to reduce the applicable  mortgage rate or to reduce its  outstanding  principal
amount. Any principal reduction of this type shall constitute a Realized Loss at


                                      S-64
<PAGE>

the time of the  reduction,  and the  amount by which  each  monthly  payment is
reduced by any mortgage rate reduction  shall  constitute a Realized Loss in the
month in which each such reduced monthly payment is due.

      Servicing  modification  reductions  shall be allocated when incurred,  as
provided above, in the same manner as other Realized Losses as described in this
prospectus supplement. Any Advances made on any mortgage loan will be reduced to
reflect any related servicing  modifications  previously made. The mortgage rate
and Net Loan Rate as to any  mortgage  loan will be deemed  not  reduced  by any
servicing modification,  so that the calculation of Accrued Certificate Interest
payable  on the  Class A  Certificates  will not be  affected  by the  servicing
modification.

      Any Excess Special Hazard Losses,  Excess Fraud Losses,  Excess Bankruptcy
Losses,  Extraordinary  Losses  or  other  losses  of  a  type  not  covered  by
subordination  will  be  allocated  on a  pro  rata  basis  among  the  Class  A
Certificates  and in an aggregate  amount equal to the  percentage  of that loss
equal  to the  then  aggregate  Certificate  Principal  Balance  of the  Class A
Certificates  divided  by the then  aggregate  Stated  Principal  Balance of the
mortgage loans, in each case subject to the limitations set forth in the Pooling
and  Servicing  Agreement,  and the  remainder  of the  Realized  Losses will be
allocated to the Class SB Certificates.

      An  allocation  of a Realized Loss on a "pro rata basis" among two or more
classes  of  certificates  means  an  allocation  to each of  those  classes  of
certificates on the basis of its then outstanding  Certificate Principal Balance
prior to giving effect to distributions to be made on that  distribution date in
the case of an allocation of the principal  portion of a Realized Loss, or based
on the Accrued Certificate Interest thereon in respect of that distribution date
in the case of an allocation of the interest portion of a Realized Loss.

      In  order  to  maximize  the  likelihood  of  distribution  in full of the
Interest  Distribution  Amount  and  Principal   Distribution  Amount,  on  each
distribution date, holders of Class A Certificates have a right to distributions
of the Available  Distribution Amount that is prior to the rights of the holders
of the Class SB Certificates  and Class R Certificates,  to the extent necessary
to satisfy the Interest Distribution Amount and Principal Distribution Amount.

      The Special  Hazard Amount shall  initially be equal to $ . As of any date
of  determination  following the cut-off date,  the Special  Hazard Amount shall
equal $ less the sum of (A) any amounts allocated through subordination relating
to Special Hazard Losses and (B) the Adjustment  Amount.  The Adjustment  Amount
will be equal to an  amount  calculated  under  the  terms  of the  pooling  and
servicing agreement.

      The Fraud Loss Amount  shall  initially  be equal to $ . As of any date of
determination  after the cut-off  date,  the Fraud Loss  Amount  shall equal (X)
prior to the third  anniversary  of the cut-off date an amount equal to ____% of
the aggregate  principal  balance of all of the mortgage loans as of the cut-off
date minus the  aggregate  amounts  allocated  through  Subordination  for Fraud
Losses  up to that  date of  determination  and (Y) from the  third to the 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)
____% 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  through   subordination  for  Fraud  Losses  since  the



                                      S-65
<PAGE>

most recent anniversary of the cut-off date up to that date of determination. On
and after the fifth anniversary of the cut-off date, the Fraud Loss Amount shall
be zero and Fraud Losses shall not be allocated through subordination.

      The  Bankruptcy  Amount will  initially  be equal to $ . As of any date of
determination  on or after  the  first  anniversary  of the  cut-off  date,  the
Bankruptcy  Amount will equal the  excess,  if any, of (1) the lesser of (a) the
Bankruptcy  Amount  as of the  business  day  next  preceding  the  most  recent
anniversary of the cut-off date and (b) an amount  calculated under the terms of
the pooling and servicing agreement, which amount as calculated will provide for
a  reduction  in the  Bankruptcy  Amount,  over  (2)  the  aggregate  amount  of
Bankruptcy  Losses  allocated  solely  to  the  Class  SB  Certificates  through
subordination since that anniversary.

      Realized Losses  allocated to the Class A Certificates  will be covered by
the financial  guaranty  insurance policy. In the event payments are not made as
required  under such  policy,  these  losses will be borne by the holders of the
Class A Certificates.

      With respect to any defaulted  mortgage  loan that is finally  liquidated,
through  foreclosure  sale,  disposition  of the related  mortgaged  property if
acquired on behalf of the certificateholders by deed in lieu of foreclosure,  or
otherwise,  the amount of loss  realized,  if any, will equal the portion of the
Stated Principal Balance  remaining,  if any, plus its interest through the last
day of the month in which  that  mortgage  loan was  finally  liquidated,  after
application  of all  amounts  recovered,  net  of  amounts  reimbursable  to the
servicer or the subservicer for expenses,  including  attorneys'  fees,  towards
interest and principal owing on the mortgage loan.

      Notwithstanding  the foregoing,  the provisions  relating to subordination
will not be  applicable  in  connection  with a  Bankruptcy  Loss so long as the
servicer has notified the trustee in writing that:

          o    the servicer is  diligently  pursuing any remedies that may exist
               in  connection  with  the  representations  and  warranties  made
               regarding the related mortgage loan and

          o    either:

          o    the  related  mortgage  loan is not in  default  with  regard  to
               payments due thereunder or

          o    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 relating to that
               mortgage  loan  are  being  advanced  on a  current  basis by the
               servicer or a subservicer.

[Advances

      Prior to each distribution date, the servicer is required to make Advances
which were due on the mortgage loans on the  immediately  preceding due date and
delinquent on the business day next preceding the related determination date.

                                      S-66
<PAGE>

      These  Advances are required to be made only to the extent they are deemed
by the  servicer to be  recoverable  from related  late  collections,  Insurance
Proceeds or  Liquidation  Proceeds.  The purpose of making these  Advances is to
maintain a regular cash flow to the certificateholders, rather than to guarantee
or insure against losses. The servicer will not be required to make any Advances
for  reductions in the amount of the monthly  payments on the mortgage loans due
to Debt  Service  Reductions  or the  application  of the  Relief Act or similar
legislation  or  regulations.  Any failure by the servicer to make an Advance as
required under the pooling and servicing  agreement will  constitute an event of
default thereunder,  in which case the trustee,  as successor servicer,  will be
obligated to make any Advance,  in accordance  with the terms of the pooling and
servicing agreement.

      All Advances  will be  reimbursable  to the  servicer on a first  priority
basis from  either (a) late  collections,  Insurance  Proceeds  and  Liquidation
Proceeds from the mortgage loan as to which such  unreimbursed  Advance was made
or (b) as to any Advance that remains unreimbursed in whole or in part following
the final  liquidation of the related mortgage loan, from any amounts  otherwise
distributable on any of the Class A Certificates.]

                         THE FINANCIAL GUARANTY INSURER

      The following  information  has been  supplied by the  financial  guaranty
insurer for inclusion in this Prospectus  Supplement.  No representation is made
by the depositor, the underwriters or any of their affiliates as to the accuracy
or completeness of such information.

                     [financial guaranty insurer discloser]

                   CERTAIN YIELD AND PREPAYMENT CONSIDERATIONS

General

      The yields to maturity and the aggregate  amount of  distributions  on the
Class A  Certificates  will be  affected  by the rate and  timing  of  principal
payments on the  mortgage  loans,  the amount and timing of  mortgagor  defaults
resulting in Realized Losses and by adjustments to the mortgage rates.  The rate
of default of mortgage loans secured by second liens may be greater than that of
mortgage loans secured by first liens. The yields may be adversely affected by a
higher or lower than  anticipated  rate of  principal  payments on the  mortgage
loans in the trust fund.  The rate of principal  payments on the mortgage  loans
will in turn be affected by the  amortization  schedules of the mortgage  loans,
the rate and  timing  of  mortgagor  prepayments  on the  mortgage  loans by the
mortgagors, liquidations of defaulted mortgage loans and repurchases of mortgage
loans due to breaches of some representations and warranties.

      The  timing  of  changes  in the  rate of  prepayments,  liquidations  and
repurchases of the mortgage  loans may, and the timing of Realized  Losses will,
significantly  affect  the yield to an  investor,  even if the  average  rate of
principal  payments  experienced  over  time is  consistent  with an  investor's
expectation.  In addition, the rate of prepayments of the mortgage loans and the
yield to investors on the certificates may be affected by refinancing  programs,
which  may  include  general  or  targeted  solicitations,  as  described  under
"Maturity and Prepayment  Considerations" in the prospectus.  Since the rate and
timing of principal  payments on the


                                      S-67
<PAGE>

mortgage  loans will  depend on future  events and on a variety of  factors,  as
described  in this  prospectus  supplement  and in the  prospectus  under "Yield
Considerations"  and "Maturity and Prepayment  Considerations," no assurance can
be given as to the rate or the  timing  of  principal  payments  on the  Class A
Certificates.

      The amount of Excess Cash Flow may be adversely affected by the prepayment
of mortgage loans with higher  mortgage  rates.  Any reduction of this type will
reduce  the  amount of Excess  Cash Flow  that is  available  to cover  Realized
Losses,  increase  overcollateralization  on the  related  classes  of  Class  A
Certificates and cover Prepayment Interest Shortfalls,  to the extent and in the
manner described in this prospectus supplement. See "Description of the Mortgage
Pool--General,"   "Description   of   the    Certificates--Overcollateralization
Provisions"  and  "--Allocation  of Losses;  Subordination"  in this  prospectus
supplement.

      The Class A Certificates are subject to various  priorities for payment of
principal as described in this prospectus supplement. Distributions of principal
on classes of Class A Certificates having an earlier priority of payment will be
affected by the rates of prepayment  of the mortgage  loans early in the life of
the mortgage pool. The timing of commencement of principal distributions and the
weighted average lives of classes of Class A Certificates  with a later priority
of payment will be affected by the rates of  prepayment  of the  mortgage  loans
both  before and after the  commencement  of  principal  distributions  on those
classes.  In addition,  the yield to maturity of the Class A  Certificates  will
depend on whether,  to what extent, and the timing with respect to which, Excess
Cash  Flow  is  used  to  accelerate  payments  of  principal  on  the  Class  A
Certificates or any Subordination Reduction Amount is released. See "Description
of  the  Certificates--Overcollateralization   Provisions"  in  this  prospectus
supplement.

      The mortgage  loans in most cases may be prepaid by the  mortgagors at any
time without payment of any prepayment fee or penalty, although a portion of the
mortgage  loans  provide for payment of a  prepayment  charge,  which may have a
substantial  effect  on the rate of  prepayment  of those  mortgage  loans.  See
"Description  of the  Mortgage  Pool--Mortgage  Pool  Characteristics"  in  this
prospectus supplement.

      Most of the mortgage loans contain due-on-sale clauses. As described under
"Description  of  the  Certificates--Principal  Distributions  on  the  Class  A
Certificates" in this prospectus  supplement,  during specified periods all or a
disproportionately  large  percentage of principal  prepayments  on the mortgage
loans will be allocated among the Class A  Certificates,  other than the Lockout
Certificates,  and during  specified  periods no  principal  prepayments  on the
mortgage loans will be distributed to the Lockout Certificates.  Furthermore, if
the Certificate  Principal Balances of the Class A Certificates,  other than the
Lockout  Certificates,  have been reduced to zero, the Lockout Certificates may,
under some  circumstances,  receive all  mortgagor  prepayments  made during the
preceding calendar month.

      Prepayments,  liquidations and purchases of the mortgage loans will result
in  distributions  to holders of the Class A Certificates  of principal  amounts
which would  otherwise be distributed  over the remaining  terms of the mortgage
loans.  Factors affecting  prepayment,  including defaults and liquidations,  of
mortgage  loans include  changes in mortgagors'  housing  needs,  job transfers,
unemployment, mortgagors' net equity in the mortgaged properties, changes in the
value of the mortgaged properties, mortgage market interest rates, solicitations
and  servicing  decisions.  In


                                      S-68
<PAGE>

addition,  if prevailing  mortgage rates fell  significantly  below the mortgage
rates on the mortgage loans,  the rate of prepayments,  including  refinancings,
would be expected to increase.  Conversely,  if prevailing  mortgage  rates rose
significantly  above  the  mortgage  rates on the  mortgage  loans,  the rate of
prepayments  on the mortgage  loans would be expected to decrease.  Furthermore,
since  mortgage  loans  secured  by  second  liens are not  generally  viewed by
borrowers as permanent  financing and  generally  carry a high rate of interest,
the  mortgage  loans  secured by second  liens may  experience  a higher rate of
prepayment than traditional first lien mortgage loans. Prepayment of the related
first lien may also affect the rate of prepayments in the mortgage loans.

      The rate of defaults on the  mortgage  loans will also affect the rate and
timing of principal  payments on the  mortgage  loans.  In general,  defaults on
mortgage  loans are  expected  to occur with  greater  frequency  in their early
years.  The rate of default of mortgage  loans secured by second liens is likely
to be greater  than that of mortgage  loans  secured by  traditional  first lien
mortgage  loans,  particularly  in the case of mortgage loans with high combined
LTV ratios or low junior ratios. The rate of default on mortgage loans which are
refinance or reduced  documentation  mortgage loans,  and on mortgage loans with
high  LTV  ratios,  may be  higher  than for  other  types  of  mortgage  loans.
Furthermore,  the rate and timing of prepayments,  defaults and  liquidations on
the  mortgage  loans will be affected by the general  economic  condition of the
region of the country in which the related mortgaged properties are located. The
risk of  delinquencies  and loss is greater and  prepayments  are less likely in
regions where a weak or  deteriorating  economy exists,  as may be evidenced by,
among other factors,  increasing  unemployment or falling property  values.  See
"Maturity and Prepayment Considerations" in the prospectus. In addition, because
borrowers  of Balloon  Loans are  required  to make a  relatively  large  single
payment upon  maturity,  it is possible  that the default risk  associated  with
Balloon Loans is greater than that  associated  with  fully-amortizing  mortgage
loans. See "Risk Factors" in this prospectus supplement.

      To the extent that any losses are  incurred on any of the  mortgage  loans
that are not covered by the Excess Cash Flow,  a reduction  in the  Subordinated
Amount  or the  financial  guaranty  insurance  policy,  holders  of the Class A
Certificates  will bear the risk of losses resulting from default by mortgagors.
See "Risk  Factors--The  return on your  certificates  will be reduced if losses
exceed the credit enhancement available to your certificates" in this prospectus
supplement. Even where the financial guaranty insurance policy covers all losses
incurred on the mortgage loans, this coverage may accelerate  principal payments
on the Class A  Certificates,  thus  reducing the  weighted  average life of the
Class A Certificates.

      The periodic increase in interest paid by the mortgagor of a Buy-Down Loan
may increase the risk of default with respect to the related  mortgage loan. See
"Yield Considerations" in the prospectus.

      The  amount  of  interest  otherwise  payable  to  holders  of the Class A
Certificates  will be  reduced  by any  interest  shortfalls  to the  extent not
covered  by  subordination  or  the  servicer,   including  Prepayment  Interest
Shortfalls.  These shortfalls will not be offset by a reduction in the servicing
fees  payable  to the  servicer  or  otherwise,  except  as  described  in  this
prospectus  supplement with respect to some Prepayment Interest Shortfalls.  See
"Yield   Considerations"   in   the   prospectus   and   "Description   of   the
Certificates--Interest  Distributions"  in  this  prospectus

                                      S-69
<PAGE>

supplement  for a  discussion  of the  effect of  principal  prepayments  on the
mortgage loans on the yield to maturity of the Class A Certificates and possible
shortfalls in the collection of interest.

      In  addition,  the  yield  to  maturity  on  each  class  of the  Class  A
Certificates  will depend on, among other things,  the price paid by the holders
of the Class A  Certificates  and the related  pass-through  rate. The extent to
which  the  yield  to  maturity  of any  Class A  Certificate  is  sensitive  to
prepayments will depend,  in part, upon the degree to which it is purchased at a
discount or premium. In general, if a class of Class A Certificates is purchased
at a premium and  principal  distributions  thereon  occur at a rate faster than
assumed at the time of purchase, the investor's actual yield to maturity will be
lower than anticipated at the time of purchase.  Conversely, if a class of Class
A Certificates  is purchased at a discount and principal  distributions  thereon
occur at a rate  slower than  assumed at the time of  purchase,  the  investor's
actual yield to maturity will be lower than anticipated at the time of purchase.
For additional  considerations  relating to the yield on the  certificates,  see
"Yield  Considerations"  and "Maturity  and  Prepayment  Considerations"  in the
prospectus.

      Because the  mortgage  rates on the  mortgage  loans and the  pass-through
rates on the Class A Certificates  (other than the Class A-1  Certificates)  are
fixed,  the rates will not  change in  response  to  changes in market  interest
rates.  Accordingly,  if market  interest  rates or market yields for securities
similar  to the  offered  certificates  were to rise,  the  market  value of the
offered certificates may decline.

      The yield to investors on the Class A-1 Certificates  will be sensitive to
fluctuations in the level of LIBOR and the pass-through rate will be capped. See
"Risk  Factors--The  yield on your certificates will be affected by the specific
characteristics  that  apply  to  that  class,   discussed  below  -  Class  A-1
Certificates".  A number of factors affect the performance of any index, such as
LIBOR,  and may  cause  such  index to move in a  manner  different  from  other
indices.  To the extent that any index may reflect  changes in the general level
of  interest  rates  less  quickly  than  other  indices,  in a period of rising
interest rates,  increases in the yield to the Class A-1  Certificateholders due
to such rising  interest rates may occur later than that which would be produced
by other indices.  Moreover, an increase in the level of LIBOR will increase the
likelihood  that the  pass-through  rate on the Class A-1  Certificates  will be
limited  by the  weighted  average  Net  Loan  Rate  on the  mortgage  loans  in
accordance  with such index,  than of mortgage  loans which adjust in accordance
with other indices.

      Class A Certificates: The rate and timing of principal payments on and the
weighted average lives of the Class A Certificates will be affected primarily by
the rate and timing of  principal  payments,  including  prepayments,  defaults,
liquidations and purchases, on the mortgage loans.

      Lockout  Certificates:  Investors  in the Lockout  Certificates  should be
aware that because the Lockout  Certificates do not receive any distributions of
payments of  principal  prior to the  distribution  date  occurring in , and may
receive a disproportionately small percentage of principal prepayments until the
distribution date occurring in ______, unless the Certificate Principal Balances
of the Class A  Certificates,  other than the  Lockout  Certificates,  have been
reduced to zero, the weighted average life of the Lockout  Certificates  will be
longer than would  otherwise be the case.  The effect on the market value of the
Lockout  Certificates  of


                                      S-70
<PAGE>

changes in market interest rates or market yields for similar securities will be
greater  than for other  classes of Class A  Certificates  entitled to principal
distributions.

      Assumed Final  Distribution Date: The assumed final distribution date with
respect  to each  class  of the  Class A  Certificates  is 25,  ,  which  is the
distribution date immediately  following the latest scheduled  maturity date for
any  mortgage  loan.  No  event  of  default,   change  in  the  priorities  for
distribution among the various classes or other provisions under the pooling and
servicing  agreement  will  arise or become  applicable  solely by reason of the
failure  to retire  the  entire  Certificate  Principal  Balance of any class of
certificates on or before its assumed final distribution date.

      The actual final  distribution  date with respect to each class of Class A
Certificates   could  occur   significantly   earlier  than  the  assumed  final
distribution date for that class because:

          o    Excess  Cash Flow will be used to make  accelerated  payments  of
               principal, i.e. Subordination Increase Amounts, to the holders of
               the Class A Certificates,  which payments will have the effect of
               shortening the weighted average lives of the Class A Certificates
               of each class,

          o    prepayments are likely to occur,  which will also have the effect
               of  shortening  the  weighted   average  lives  of  the  Class  A
               Certificates,  and

          o    the  servicer  may  cause a  termination  of the  trust  when the
               aggregate Stated  Principal  Balance of the mortgage loans in the
               trust is less than 10% of the aggregate cut-off date balance.

      Weighted Average Life:  Weighted average life refers to the average amount
of time that will  elapse from the date of issuance of a security to the date of
distribution  to the  investor  of  each  dollar  distributed  in  reduction  of
principal of the security  assuming no losses.  The weighted average life of the
Class A  Certificates  will be influenced  by, among other  things,  the rate at
which  principal  of the  mortgage  loans is paid,  which  may be in the form of
scheduled amortization, prepayments or liquidations.

      Prepayments  on  mortgage  loans  are  commonly  measured  relative  to  a
prepayment standard or model. The model used in this prospectus supplement,  the
prepayment speed assumption, 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% PSA assumes constant prepayment rates of
0.20% per annum of the then outstanding  principal balance of the mortgage loans
in the first month of the life of the mortgage loans and an additional 0.20% per
annum in each month thereafter until the 30th month. Beginning in the 30th month
and in each month  thereafter  during the life of the mortgage  loans , 100% PSA
assumes a constant  prepayment  rate of 6% per annum each month.  As used in the
table  below,  "0%  PSA"  assumes  prepayment  rates  equal  to  0%  of  PSA--no
prepayments.  Correspondingly,  "100% PSA" and " % PSA" assumes prepayment rates
equal  to 100% of PSA and % of PSA,  respectively,  and so  forth.  PSA 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 table  captioned  "Percent of Initial  Certificate  Principal  Balance
Outstanding at the Following  Percentages of PSA" has been prepared on the basis
of  assumptions  as listed in this



                                      S-71
<PAGE>

paragraph  regarding the weighted average  characteristics of the Mortgage loans
that  are  expected  to be  included  in  the  trust  fund  as  described  under
"Description  of the  Mortgage  Pool" in this  prospectus  supplement  and their
performance.  The table assumes, among other things, that: (i) as of the date of
issuance of the Class A  Certificates,  the  mortgage  loans have the  following
characteristics:

Aggregate principal            $               $
   balance

Weighted average                   %                       %
   mortgage rate

Weighted average                   %                       %
   servicing fee rate

Weighted average
   original term to
   maturity (months)

Weighted average
   remaining term to
   maturity (months)


       (ii)except  with  respect  to the  Balloon  Loans the  scheduled  monthly
payment  for  each  mortgage  loan has been  based on its  outstanding  balance,
mortgage  rate and  remaining  term to maturity,  so that the mortgage loan will
amortize in amounts  sufficient  for its repayment  over its  remaining  term to
maturity;  (iii) none of the unaffiliated sellers, the servicer or the depositor
will  repurchase  any mortgage  loan,  as described  under "The Trust  Fund--The
Mortgage  Pools" and  "Description of the  Certificates--Assignment  of Mortgage
Loans" in the prospectus,  and neither the servicer nor the depositor  exercises
any option to purchase the mortgage loans and thereby cause a termination of the
trust fund; (iv) there are no  delinquencies  or Realized Losses on the mortgage
loans , and  principal  payments on the mortgage  loans will be timely  received
together with prepayments, if any, at the respective constant percentages of PSA
set forth in the table;  (v) there is no  Prepayment  Interest  Shortfall or any
other interest shortfall in any month; (vi) payments on the certificates will be
received on the 25th day of each month, commencing in _________;  (vii) payments
on  the  mortgage  loans  earn  no  reinvestment  return;  (viii)  there  are no
additional  ongoing trust fund expenses  payable out of the trust fund; and (ix)
the  certificates  will be purchased on  _______________,  _______.  Clauses (i)
through (ix) above are collectively referred to as the structuring assumptions.

      The actual  characteristics  and  performance  of the mortgage  loans will
differ from the  assumptions  used in  constructing  the table  below,  which is
hypothetical  in nature and is provided  only to give a general sense of how the
principal  cash flows might  behave  under  varying  prepayment  scenarios.  For
example,  it is very unlikely that the mortgage  loans will prepay at a constant
level of PSA until maturity or that all of the mortgage loans will prepay at the
same  level of PSA.  Moreover,  the  diverse  remaining  terms to  maturity  and
mortgage rates of the mortgage  loans could produce  slower or faster  principal
distributions than indicated in the table at the various constant percentages of
PSA  specified,  even if the  weighted  average  remaining  term to maturity and
weighted  average  mortgage  rate of the  mortgage  loans  are as  assumed.  Any


                                      S-72
<PAGE>

difference   between  the  assumptions  and  the  actual   characteristics   and
performance of the mortgage loans, or actual prepayment or loss experience, will
affect the percentages of initial  Certificate  Principal  Balances  outstanding
over time and the weighted average lives of the classes of Class A Certificates.

      In accordance with the foregoing discussion and assumptions, the following
table indicates the weighted average life of each class of Class A Certificates,
and sets forth the percentages of the initial  Certificate  Principal Balance of
each class of Class A Certificates  that would be outstanding  after each of the
distribution dates at the various percentages of PSA shown.

           Percent of Initial Certificate Principal Balance Outstanding

                       at the Following Percentages of PSA

                        Class A-1       Class A-2       Class A-3
DISTRIBUTION DATE     %     %    %     %    %    %     %    %     %
Initial Percentage
Weighted Average
Life in Years (**)

------------

o      Indicates a number that is greater than zero but less than 0.5%.

o     (Table continued on next page.)

**    The weighted  average life of a certificate  of any class is determined by
      (i)  multiplying the net reduction,  if any, of the Certificate  Principal
      Balance  by  the  number  of  years  from  the  date  of  issuance  of the
      certificate to the related distribution date, (ii) adding the results, and
      (iii)  dividing  the  sum by the  aggregate  of the net  reduction  of the
      Certificate Principal Balance described in (i) above.

      This  table  has  been  prepared  based  on the  structuring  assumptions,
including the assumptions relating to the characteristics and performance of the
mortgage loans,  which differ from their actual  characteristics,  and should be
read in conjunction therewith.

                         POOLING AND SERVICING AGREEMENT

General

      The  certificates  will be issued under a pooling and servicing  agreement
dated as of __________, ____, among the depositor, the seller, the servicer, and
__________,  as  trustee.  Reference  is made to the  prospectus  for  important
information  in  addition  to  that  described  in  this  prospectus  supplement
regarding the terms and  conditions  of the pooling and servicing  agreement and
the Class A Certificates.  The trustee will appoint ____________________to


                                      S-73
<PAGE>

serve as custodian in connection with the certificates. The Class A Certificates
will be  transferable  and  exchangeable  at the  corporate  trust office of the
trustee,  which will  serve as  certificate  registrar  and  paying  agent.  The
depositor will provide a prospective or actual certificateholder without charge,
on written  request,  a copy,  without  exhibits,  of the pooling and  servicing
agreement.  Requests  should be addressed to the President,  Credit Suisse First
Boston Mortgage Securities Corp., [ ].

Servicing and Other Compensation and Payment of Expenses

      The servicing  fees for each mortgage loan are payable out of the interest
payments on that mortgage  loan.  The  servicing  fees relating to each mortgage
loan  will be at  least  % per  annum  and  not  more  than % per  annum  of the
outstanding  principal  balance of that mortgage loan,  with a weighted  average
servicing fee of approximately % per annum.

      The servicer is obligated to pay some ongoing expenses associated with the
trust fund and incurred by the servicer in connection with its  responsibilities
under the pooling and servicing agreement. See "Description of the Certificates"
in the prospectus for information  regarding other possible  compensation to the
servicer and subservicers and for information  regarding expenses payable by the
servicer.

Voting Rights

      There are actions specified in the prospectus that may be taken by holders
of certificates  evidencing a specified percentage of all undivided interests in
the trust  fund and may be taken by  holders  of  certificates  entitled  in the
aggregate to that  percentage  of the voting  rights.  ___% of all voting rights
will be  allocated  among all holders of the Class A  Certificates,  ___% of all
voting  rights will be allocated  among all holders of the Class R  Certificates
and ___% of all voting  rights will be allocated  among all holders of the Class
SB  Certificates,  respectively,  in each case in proportion  to the  percentage
interests evidenced by their respective certificates.  The pooling and servicing
agreement  may be amended  without  the  consent  of the  holders of the Class R
Certificates in specified circumstances.

Termination

      The circumstances  under which the obligations  created by the pooling and
servicing  agreement  will terminate  relating to the Class A  Certificates  are
described in "Description of the  Certificates--Termination"  in the prospectus.
The  servicer  will  have the  option,  on any  distribution  date on which  the
aggregate Stated Principal Balance of the mortgage loans is less than 10% of the
aggregate principal balance of the mortgage loans as of the cut-off date, either
to purchase  all  remaining  mortgage  loans and other assets in the trust fund,
except  for the  policy,  thereby  effecting  early  retirement  of the  Class A
Certificates  or to purchase,  in whole but not in part, the  certificates.  Any
such purchase of mortgage loans and other assets of the trust fund shall be made
at a price equal to the sum of (a) 100% of the unpaid principal  balance of each
mortgage  loan or the fair  market  value of the  related  underlying  mortgaged
properties  with respect to defaulted  mortgage  loans as to which title to such
mortgaged  properties  has been  acquired if such fair market value is less than
such unpaid principal balance,  net of any unreimbursed  Advance attributable to
principal, as of the date of repurchase plus (b) accrued


                                      S-74
<PAGE>

interest  thereon at the Net Loan Rate to, but not  including,  the first day of
the month in which the repurchase  price is distributed plus (c) any amounts due
to the financial guaranty insurer under the insurance and indemnity agreement.

      Distributions  on the  certificates  relating to any optional  termination
will be paid,  first,  to the Class A Certificates  and second,  to the Class SB
Certificates  in the order of their payment  priority.  The proceeds of any such
distribution  may not be sufficient to distribute  the full amount to each class
of  certificates if the purchase price is based in part on the fair market value
of the underlying mortgaged property and the fair market value is less than 100%
of the unpaid  principal  balance of the related  mortgage loan. Any purchase of
mortgage  loans  and  termination  of the  trust  requires  the  consent  of the
financial  guaranty insurer if it would result in a draw on the policy. Any such
purchase  of the  certificates  will be made at a price  equal  to 100% of their
Certificate  Principal  Balance  plus  the  sum  of  interest  thereon  for  the
immediately   preceding   Interest   Accrual   Period  at  the   then-applicable
pass-through rate and any previously unpaid Accrued Certificate  Interest.  Upon
the purchase of such  certificates or at any time  thereafter,  at the option of
the servicer,  the mortgage loans may be sold, thereby effecting a retirement of
the  certificates  and the termination of the trust fund, or the certificates so
purchased may be held or resold by the servicer or the depositor.

      Upon  presentation and surrender of the Class A Certificates in connection
with the termination of the trust fund or a purchase of  certificates  under the
circumstances  described  in the two  preceding  paragraphs,  the holders of the
Class A Certificates  will receive an amount equal to the Certificate  Principal
Balance  of that class  plus  interest  thereon  for the  immediately  preceding
Interest  Accrual  Period at the  then-applicable  pass-through  rate,  plus any
previously unpaid Accrued Certificate  Interest.  However,  distributions to the
holders  of the most  subordinate  class  of  certificates  outstanding  will be
reduced, as described in the preceding paragraph, in the case of the termination
of the trust fund resulting from a purchase of all the assets of the trust fund.

                     MATERIAL FEDERAL INCOME TAX CONSEQUENCES

____________________,  counsel to the depositor,  has filed with the depositor's
registration  statement an opinion to the effect that,  assuming compliance with
all  provisions of the pooling and servicing  agreement,  for federal income tax
purposes,  the trust fund will  qualify as a REMIC  under the  Internal  Revenue
Code.

For federal income tax purposes:

          o    the  Class R  Certificates  will  constitute  the  sole  class of
               "residual interests" in the REMIC and

          o    each class of Class A Certificates  and the Class SB Certificates
               will represent  ownership of "regular interests" in the REMIC and
               will be treated as debt instruments of the REMIC

      See "Material  Federal Income Tax  Consequences--Classification  of REMICs
and FASITs" in the prospectus.

                                      S-75
<PAGE>

      For federal income tax purposes,  the Class  Certificates will, [the Class
Certificates  may] [and all other Classes of Class A  Certificates  will not] be
treated as having been issued  with  original  issue  discount.  The  prepayment
assumption  that will be used in  determining  the rate of accrual  of  original
issue  discount,  market  discount and premium,  if any, for federal  income tax
purposes  will be based on the  assumption  that,  subsequent to the date of any
determination  the  mortgage  loans  will  prepay at a rate  equal to % PSA.  No
representation  is made that the  mortgage  loans will prepay at that rate or at
any other rate.  See "Material  Federal  Income Tax  Consequences--General"  and
"--Taxation  of Owners of REMIC and FASIT Regular  Certificates--Original  Issue
Discount" in the prospectus.

      If the method for  computing  original  issue  discount  described  in the
prospectus  results  in a  negative  amount  for any  period  with  respect to a
certificateholder,  the amount of  original  issue  discount  allocable  to that
period would be zero and the certificateholder  will be permitted to offset that
negative  amount  only  against  future   original  issue   discount,   if  any,
attributable to those certificates.

      In some  circumstances  the OID  regulations  permit  the holder of a debt
instrument to recognize original issue discount under a method that differs from
that  used by the  issuer.  Accordingly,  it is  possible  that the  holder of a
certificate  may be able to  select  a method  for  recognizing  original  issue
discount that differs from that used by the servicer in preparing reports to the
certificateholders and the IRS.

      Some of the  classes of Class A  Certificates  may be treated  for federal
income tax  purposes as having  been issued at a premium.  Whether any holder of
one of those  classes of  certificates  will be treated as holding a certificate
with  amortizable bond premium will depend on the  certificateholder's  purchase
price and the distributions  remaining to be made on the certificate at the time
of its  acquisition  by the  certificateholder.  Holders  of  those  classes  of
certificates  should  consult their tax advisors  regarding the  possibility  of
making an election to amortize such premium.  See "Material  Federal  Income Tax
Consequences--Taxation  of Owners of REMIC and FASIT Regular  Certificates"  and
"--Premium" in the prospectus.

      The Class A  Certificates  will be treated as assets  described in Section
7701(a)(19)(C)  of the  Internal  Revenue Code and "real  estate  assets"  under
Section  856(c)(4)(A)  of the Internal  Revenue Code in the same proportion that
the assets of the trust fund would be so treated.  In addition,  interest on the
Class A  Certificates  will be treated as  "interest on  obligations  secured by
mortgages on real property" under Section  856(c)(3)(B) of the Internal  Revenue
Code to the extent that the Class A  Certificates  are  treated as "real  estate
assets" under Section 856(c)(4)(A) of the Internal Revenue Code.  Moreover,  the
Class A Certificates will be "qualified mortgages" within the meaning of Section
860G(a)(3) of the Internal  Revenue Code if  transferred to another REMIC on its
startup day in exchange  for a regular or residual  interest  therein.  However,
prospective  investors  in Class A  Certificates  that will be treated as assets
described in Section  860G(a)(3) of the Internal  Revenue Code should note that,
notwithstanding that treatment,  any repurchase of a certificate pursuant to the
right of the servicer or the  depositor to repurchase  the Class A  Certificates
may  adversely  affect  any REMIC  that  holds the Class A  Certificates  if the
repurchase is made under circumstances  giving rise to a Prohibited  Transaction
Tax. See "The Pooling and Servicing  Agreement--Termination"  in this prospectus
supplement and "Material

                                      S-76
<PAGE>


Federal   Income  Tax   Consequences--Taxation   of  Owners  of  REMIC  Residual
Certificates--Prohibited Transaction and Other Taxes" in the prospectus.

      For further  information  regarding  federal  income tax  consequences  of
investing  in the  Class  A  Certificates,  see  "Material  Federal  Income  Tax
Consequences--Taxation of Owners of REMIC and FASIT Regular Certificates" in the
prospectus.

                             METHOD OF DISTRIBUTION

      In accordance with the terms and conditions of an underwriting  agreement,
dated , will serve as  underwriter  and has agreed to purchase and the depositor
has agreed to sell the Class A Certificates.  The certificates being sold to the
underwriter  are referred to as the  underwritten  certificates.  It is expected
that delivery of the underwritten  certificates  will be made only in book-entry
form  through  the  Same  Day  Funds  Settlement  System  of  DTC  on  or  about
_____________, against payment therefor in immediately available funds.

      In connection  with the  underwritten  certificates,  the  underwriter has
agreed,  in  accordance  with  the  terms  and  conditions  of the  underwriting
agreement,  to  purchase  all of  the  underwritten  certificates  if any of its
underwritten certificates are purchased thereby.

      The   underwriting   agreement   provides  that  the  obligations  of  the
underwriter to pay for and accept delivery of the underwritten  certificates are
subject  to,  among  other  things,  the  receipt of legal  opinions  and to the
conditions, among others, that no stop order suspending the effectiveness of the
depositor's  registration  statement shall be in effect, and that no proceedings
for that purpose shall be pending before or threatened by the Commission.

      The distribution of the  underwritten  certificates by the underwriter may
be  effected  from  time  to time in one or  more  negotiated  transactions,  or
otherwise,  at varying prices to be determined at the time of sale.  Proceeds to
the depositor from the sale of the underwritten  certificates,  before deducting
expenses  payable by the  depositor,  will be  approximately  % of the aggregate
Certificate  Principal  Balance of the  underwritten  certificates  plus accrued
interest thereon from the cut-off date.

      The underwriter may effect these  transactions by selling the underwritten
certificates to or through dealers,  and those dealers may receive  compensation
in the form of  underwriting  discounts,  concessions  or  commissions  from the
underwriter  for whom  they act as  agent.  In  connection  with the sale of the
underwritten  certificates,  the  underwriter  may be  deemed  to have  received
compensation  from the depositor in the form of underwriting  compensation.  The
underwriter  and any  dealers  that  participate  with  the  underwriter  in the
distribution of the  underwritten  certificates may be deemed to be underwriters
and any profit on the resale of the underwritten certificates positioned by them
may be deemed to be underwriting  discounts and commissions under the Securities
Act of 1933, as amended.

      The underwriting  agreement provides that the depositor will indemnify the
underwriter, and that under limited circumstances the underwriter will indemnify
the depositor,  against some liabilities under the Securities Act, or contribute
to payments required to be made in respect thereof.

                                      S-77
<PAGE>

      There is currently no secondary  market for the Class A Certificates.  The
underwriter intends to make a secondary market in the underwritten  certificates
but is not obligated to do so. There can be no assurance that a secondary market
for the Class A Certificates  will develop or, if it does develop,  that it will
continue.  The  Class  A  Certificates  will  not be  listed  on any  securities
exchange.

      The primary  source of information  available to investors  concerning the
Class A Certificates will be the monthly statements  discussed in the prospectus
under "Description of the  Certificates--Reports  to Certificateholders,"  which
will include information as to the outstanding  principal balance of the Class A
Certificates.  There  can  be  no  assurance  that  any  additional  information
regarding the Class A Certificates  will be available  through any other source.
In  addition,  the  depositor  is not aware of any source  through  which  price
information  about the Class A  Certificates  will be  available  on an  ongoing
basis. The limited nature of this information regarding the Class A Certificates
may  adversely  affect  the  liquidity  of the Class A  Certificates,  even if a
secondary market for the Class A Certificates becomes available.

                                 LEGAL OPINIONS

     [Certain legal matters relating to the certificates will be passed upon for
the depositor by , and for the ------------------------ ------------------------
underwriter by , .] ---------------------- ------------------------

                                    [EXPERTS

      The  consolidated  financial  statements of [financial  guaranty  insurer]
____________ [and  subsidiaries],  as of December 31, ____ and ____ and for each
of the years in the three-year  period ended December 31, ____ are  incorporated
by reference in this prospectus supplement and in the registration  statement in
reliance upon the report of _________, independent certified public accountants,
incorporated by reference in this prospectus supplement,  and upon the authority
of __________ as experts in accounting and auditing.]

                                     RATINGS

     It is a condition of the issuance of the Class A Certificates  that they be
rated     "AAA"     by  __________   and   ____________.

[______________________ 's ratings on mortgage pass-through certificates address
the likelihood of the receipt by  certificateholders  of payments required under
the pooling and servicing agreement.  ____________________  's ratings take into
consideration  the credit  quality of the mortgage  pool,  structural  and legal
aspects  associated with the  certificates,  and the extent to which the payment
stream in the  mortgage  pool is adequate to make  payments  required  under the
certificates.  ________________ 's rating on the certificates does not, however,
constitute a statement regarding frequency of prepayments on the mortgage s. See
"Certain Yield and Prepayment  Considerations" in this prospectus supplement. In
addition,  the  ratings do not  address  the  likelihood  of the  receipt of any
amounts in respect of Prepayment Interest Shortfalls.

     The ratings assigned by 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.  _________________'s  ratings
reflect its analysis of the


                                      S-78
<PAGE>


riskiness of the underlying  mortgage loans and the structure of the transaction
as described in the operative documents. 's ratings do not address the effect on
the  certificates'  yield  attributable  to  prepayments  or  recoveries  on the
underlying  mortgage  loans  . In  addition,  the  ratings  do not  address  the
likelihood  of the  receipt of any  amounts in  respect of  Prepayment  Interest
Shortfalls.

     The depositor has not requested a rating on the Class A Certificates by any
rating agency other than _______________ and __________________.  However, there
can be no assurance as to whether any other rating  agency will rate the Class A
Certificates,  or, if it does, what rating would be assigned by any other rating
agency.  A rating on the  Certificates by another rating agency,  if assigned at
all, may be lower than the ratings assigned to the Class A Certificates by and .

      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
organization.  Each  security  rating should be evaluated  independently  of any
other security rating. In the event that the ratings  initially  assigned to the
Class A  Certificates  are  subsequently  lowered for any  reason,  no person or
entity is obligated to provide any additional support or credit enhancement with
respect to the Class A Certificates.

                                LEGAL INVESTMENT

      The Class A Certificates will not constitute "mortgage related securities"
for purposes of SMMEA because the mortgage pool includes mortgage loans that are
secured by subordinate liens on the related mortgage properties.

      One or more classes of the Class A Certificates  may be viewed as "complex
securities" under TB13a, which applies to thrift  institutions  regulated by the
OTS.

      The depositor makes no representations  as to the proper  characterization
of any class of the Class A Certificates for legal investment or other purposes,
or as to the ability of particular  investors to purchase any class of the Class
A  Certificates   under   applicable  legal   investment   restrictions.   These
uncertainties  may  adversely  affect  the  liquidity  of any  class  of Class A
Certificates. Accordingly, all investors whose investment activities are subject
to legal investment laws and  regulations,  regulatory  capital  requirements or
review by regulatory  authorities  should  consult with their legal  advisors in
determining  whether  and to what  extent any class of the Class A  Certificates
constitutes  a legal  investment or is subject to  investment,  capital or other
restrictions.

      See "Legal Investment" in the prospectus.

                              ERISA CONSIDERATIONS

      A fiduciary of any ERISA plan, any insurance company,  whether through its
general or separate  accounts,  or any other person investing ERISA plan assets,
as defined under "ERISA  Considerations"  in the  prospectus,  should  carefully
review  with its legal  advisors  whether  the  purchase  or  holding of Class A
Certificates  could  give  rise to a  transaction  prohibited  or not  otherwise
permissible  under  ERISA or Section  4975 of the  Internal  Revenue  Code.  The


                                      S-79
<PAGE>

purchase or holding of the Class A Certificates by or on behalf of an ERISA plan
or with ERISA  plan  assets  may  qualify  for  exemptive  relief  under the RFC
exemption, as described under "ERISA Considerations" in the prospectus. However,
the RFC  exemption  contains  a number of  conditions  which must be met for the
exemption to apply,  including  the  requirement  that any ERISA plan must be an
"accredited  investor"  as  defined in Rule  501(a)(1)  of  Regulation  D of the
Commission under the Securities Act.

      Insurance companies contemplating the investment of general account assets
in the Class A  Certificates  should  consult  with their  legal  advisors  with
respect to the  applicability  of Section  401(c) of ERISA,  as described  under
"ERISA  Considerations--Insurance  Company General  Accounts" in the prospectus.
The DOL issued final  regulations  under Section  401(c) on January 4, 2000, but
these final regulations are not generally applicable until July 5, 2001.

      Any  fiduciary  or other  investor of ERISA plan  assets that  proposes to
acquire  or hold the Class A  Certificates  on  behalf of an ERISA  plan or with
ERISA plan assets  should  consult with its counsel with respect to: (i) whether
the  specific  and  general  conditions  and the other  requirements  of the RFC
exemption  would be  satisfied,  or  whether  any other  prohibited  transaction
exemption  would  apply,  and (ii) the  potential  applicability  of the general
fiduciary  responsibility  provisions  of ERISA and the  prohibited  transaction
provisions  of  ERISA  and  Section  4975 of the  Internal  Revenue  Code to the
proposed investment. See "ERISA Considerations" in the prospectus.

      The sale of any of the  Class A  Certificates  to an  ERISA  plan is in no
respect  a  representation  by the  depositor  or the  underwriter  that such an
investment  meets all relevant  legal  requirements  relating to  investments by
ERISA plans  generally or any particular  ERISA plan, or that such an investment
is appropriate for ERISA plans generally or any particular ERISA plan.


                                      S-80
<PAGE>


               Credit Suisse First Boston Mortgage Securities Corp.

                         $



                   Mortgage-Backed Pass-Through Certificates,

                                 Series 200_-___

                              Prospectus supplement

                              [Name of Underwriter]

                                   Underwriter

You should rely only on the  information  contained or incorporated by reference
in this prospectus supplement and the prospectus.  We have not authorized anyone
to provide you with different information.

We are not offering the certificates offered hereby in any state where the offer
is not permitted.

Dealers will be required to deliver a prospectus  supplement and prospectus when
acting as  underwriters of the  certificates  offered hereby and with respect to
their unsold allotments or subscriptions.  In addition,  all dealers selling the
offered  certificates,  whether or not  participating  in this offering,  may be
required to deliver a prospectus supplement and prospectus until _______, .

<PAGE>

THE  INFORMATION IN THIS  PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED.  WE MAY
NOT SELL  THESE  SECURITIES  UNTIL THE  REGISTRATION  STATEMENT  FILED  WITH THE
SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER
TO  SELL  THESE  SECURITIES  AND IT IS NOT  SOLICITING  AN  OFFER  TO BUY  THESE
SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.

Prospectus

Conduit Mortgage and Manufactured Housing Contract
Pass-Through Certificates

Credit Suisse First Boston Mortgage Securities Corp.

Depositor

The depositor may periodically  form separate trust funds to issue securities in
series, secured by assets of that trust fund.

Offered Securities. The  securities  in a series will consist of  certificates
                    representing interests in a trust fund and will be paid only
                    from the assets of that trust fund.  Each series may include
                    multiple classes of securities with differing  payment terms
                    and priorities.  Credit enhancement will be provided for all
                    offered securities.

Trust Assets.        Each trust fund will consist primarily of:

                  o     mortgage loans secured by one- to four-family
                        residential properties;

                  o     mortgage loans secured by multifamily
                        residential rental properties consisting of
                        five or more dwelling units;

                  o     mortgage loans secured by commercial real
                        estate properties;

                  o     mortgage loans secured by mixed residential
                        and commercial real estate properties;

                  o     loans secured by unimproved land;

                  o     loans made to finance  the  purchase  of certain  rights
                        relating to cooperatively  owned  properties  secured by
                        the pledge of shares issued by a cooperative corporation
                        and the assignment of the proprietary lease or occupancy
                        agreement  providing  the  exclusive  right to  occupy a
                        particular dwelling unit;

                  o     manufactured housing installment sales
                        contracts and installment loan agreements; or

                  o     mortgage or asset-backed securities backed
                        by, and whole or partial participations in,
                        the types of assets listed above.

Neither  the  Securities  and  Exchange  Commission  nor  any  state  securities
commission has approved or disapproved  of these  securities or determined  that
this prospectus is accurate or complete. Any representation to the contrary is a
criminal offense.


August __, 2000



<PAGE>
             Important notice about information presented in this
             prospectus and the accompanying prospectus supplement

We provide  information to you about the certificates in two separate  documents
that provide progressively more detail:

o    this prospectus, which provides general information,  some of which may not
     apply to your series of certificates; and

o    the accompanying prospectus supplement,  which describes the specific terms
     of your series of certificates.

You should  rely only on the  information  provided in this  prospectus  and the
accompanying  prospectus supplement,  including the information  incorporated by
reference.  We  have  not  authorized  anyone  to  provide  you  with  different
information.  We are not offering the  certificates in any state where the offer
is not permitted.

If the description of your securities in the accompanying  prospectus supplement
differs from the related description in this prospectus,  you should rely on the
information in that prospectus supplement.

Some capitalized terms used in this prospectus are defined in the section titled
"Glossary" beginning on page 104 of this prospectus.

We include  cross-references in this prospectus and the accompanying  prospectus
supplement  to captions in these  materials  where you can find further  related
discussions.  The following table of contents and the table of contents included
in the  accompanying  prospectus  supplement  provide  the pages on which  these
captions are located.



                                       2
<PAGE>



                                Table of Contents

                                                               Page


The Trust Fund....................................................5
      The Mortgage Pools..........................................5
      Underwriting Standards for Mortgage Loans..................10
      Qualifications of Unaffiliated Sellers.....................13
      Representations by Unaffiliated Sellers; Repurchases.......13
      Mortgage Certificates......................................14
      The Contract Pools.........................................15
      Underwriting Standards for Contracts.......................16
      Pre-Funding................................................16
The Depositor....................................................17
Use of Proceeds..................................................17
Yield Considerations.............................................17
Maturity and Prepayment Considerations...........................20
Description of the Certificates..................................22
      General....................................................22
      Form of Certificates.......................................24
      Distributions of Principal and Interest....................26
      Assignment of Mortgage Loans...............................27
      Assignment of Contracts....................................29
      Assignment of Mortgage Certificates........................31
      Servicing of Mortgage Loans and Contracts..................31
      Payments on Mortgage Loans.................................32
      Payments on Contracts......................................33
      Collection of Payments on Mortgage Certificates............34
      Distributions on Certificates..............................34
      Special Distributions......................................35
      Reports to Certificateholders..............................36
      Advances...................................................36
      Collection and Other Servicing Procedures..................37
      Standard Hazard Insurance..................................38
      Special Hazard Insurance...................................39
      Pool Insurance.............................................39
      Primary Mortgage Insurance.................................39
      Mortgagor Bankruptcy Bond..................................40
      Presentation of Claims.....................................40
      Enforcement of Due-on-Sale Clauses; Realization
      Upon Defaulted Mortgage Loans..............................41
      Enforcement of "Due-on-Sale" Clauses;
      Realization Upon Defaulted Contracts.......................42
      Servicing Compensation and Payment of Expenses.............42
      Evidence as to Compliance..................................43
      Certain Matters Regarding the Servicer, the
      Depositor, the Trustee and the Special Servicer............44
      Events of Default..........................................45
      Rights Upon Event of Default...............................45
      Amendment..................................................45
      Termination................................................46
Credit Support...................................................47
      Financial Guaranty Insurance
           Policies; Surety Bonds................................47
      Letters of Credit..........................................48
      Subordinated Certificates..................................49
      Shifting Interest..........................................49
      Overcollateralization......................................49
      Swaps and Yield Supplement
           Agreements............................................49
      Purchase Obligations.......................................50

                                       3
<PAGE>

      Reserve Fund..............................................50
      Performance Bond..........................................52
Description of Insurance........................................52
      Primary Mortgage Insurance Policies.......................52
      FHA Insurance and VA Guarantees...........................54
      Standard Hazard Insurance Policies on Mortgage Loans......55
      Standard Hazard Insurance Policies on the
      Manufactured Homes........................................56
      Pool Insurance Policies...................................57
      Special Hazard Insurance Policies.........................59
      Mortgagor Bankruptcy Bond.................................60
Certain Legal Aspects of the Mortgage Loans and Contracts.......60
      The Mortgage Loans........................................60
      The Manufactured Housing Contracts........................68
      Enforceability of Certain Provisions......................70
      Consumer Protection Laws..................................70
      Applicability of Usury Laws...............................71
      Environmental Legislation.................................71
      Soldiers' and Sailors' Civil Relief Act of 1940...........72
      Default Interest and Limitations on Prepayments...........72
      Forfeitures in Drug and RICO Proceedings..................73
      Negative Amortization Loans...............................73
Material Federal Income Tax Consequences........................73
      General...................................................73
      Classification of REMICs and FASITs.......................74
      Taxation of Owners of REMIC and FASIT Regular
      Certificates..............................................75
      Taxation of Owners of REMIC Residual Certificates.........82
      Backup Withholding with Respect to Securities.............90
      Foreign Investors in Regular Certificates.................90
      Non-REMIC Trust Funds.....................................92
State and Other Tax Consequences................................95
ERISA Considerations............................................95
      Plan Assets Regulation....................................96
      Underwriter's PTE.........................................96
      General Considerations....................................98
      Insurance Company General Accounts........................99
Legal Investment................................................99
Plan of Distribution...........................................101
Legal Matters..................................................102
Financial Information..........................................102
Additional Information.........................................102
Reports to Certificateholders102
Incorporation of Certain Information by Reference..............102
Ratings........................................................103
Glossary.......................................................104


                                       4
<PAGE>

                                 The Trust Fund

     Ownership of the mortgage or contract pool included in the trust fund for a
series of certificates  may be evidenced by one or more classes of certificates,
which may consist of one or more  subclasses,  as  described  in the  prospectus
supplement for each series of  certificates.  Each certificate will evidence the
undivided  interest,  beneficial  interest or notional  amount  specified in the
related prospectus  supplement in a mortgage pool containing mortgage loans or a
contract pool containing  manufactured  housing  installment  sales contracts or
installment loan agreements,  or contracts.  If stated in the related prospectus
supplement, each class or subclass of the certificates of a series will evidence
the percentage  interest specified in the related  prospectus  supplement in the
payments of principal and interest on the mortgage loans in the related mortgage
pool or on the contracts in the related contract pool.

     To the extent specified in the related prospectus supplement, each mortgage
pool or contract pool,  with respect to a series will be covered by some form of
credit enhancement. Types of credit enhancement that may be used include:

o    financial guaranty insurance policies or surety bonds;

o    letters of credit;

o    pool insurance policies;

o    special hazard insurance policies;

o    mortgagor bankruptcy bonds;

o    the  subordination  of the  rights  of  the  holders  of  the  subordinated
     certificates  of a  series  to the  rights  of the  holders  of the  senior
     certificates  of that series,  which,  if stated in the related  prospectus
     supplement, may include certificates of a subordinated class or subclass;

o    the establishment of a reserve fund;

o    by the  right of one or more  classes  or  subclasses  of  certificates  to
     receive a disproportionate amount of certain distributions of principal;

o    another  form or forms of  Alternative  Credit  Support  acceptable  to the
     related Rating Agency; or

o    by any combination of the foregoing.

See "Description of Insurance" and "Credit Support" in this prospectus.

The Mortgage Pools

     General.  If stated in the prospectus  supplement with respect to a series,
the trust fund for that series may include:

     (1)  one or more mortgage pools containing:

o    conventional one- to four-family residential,  first and/or second mortgage
     loans,

o    Cooperative  Loans made to finance the purchase of certain rights  relating
     to cooperatively owned properties secured by the pledge of shares issued by
     a  Cooperative  and the  assignment  of a  proprietary  lease or  occupancy
     agreement providing the exclusive right to occupy a particular  Cooperative
     Dwelling,

o    mortgage loans secured by multifamily property,

o    mortgage loans secured by commercial property,

o    mortgage loans secured by Mixed-Use Property,

o    mortgage loans secured by unimproved land,

                                       5
<PAGE>

o    mortgage participation certificates or pass-through certificates evidencing
     interests in those loans that are  acceptable to the related Rating Agency,
     or

o    mortgage pass-through certificates issued by one or more trusts established
     by one or more private entities;

      (2)  one  or  more  contract   pools   containing   manufactured   housing
           conditional  sales  contracts  and  installment  loan  agreements  or
           participation  certificates or pass-through certificates representing
           interests in those contracts; or

      (3)  any combination of the foregoing.

The mortgage loans and contracts, will be newly originated or seasoned, and will
be purchased by the depositor,  Credit Suisse First Boston  Mortgage  Securities
Corp.,  either  directly or through  affiliates,  from one or more affiliates or
sellers unaffiliated with the depositor.

     All  mortgage  loans will be  evidenced by Mortgage  Notes.  Single  family
property  will  consist  of  one-  to  four-family  residential  dwelling  units
including  single family  detached homes,  attached  homes,  single family units
having a common wall, individual units located in condominiums,  and Cooperative
Dwellings  and such other type of homes or units as are set forth in the related
prospectus supplement. Multi-family property may include multifamily residential
rental  properties  and  apartment   buildings  owned  by  cooperative   housing
corporations.  Each  detached or attached home or  multifamily  property will be
constructed  on land owned in fee simple by the  mortgagor  or on land leased by
the mortgagor.  Attached homes may consist of duplexes, triplexes and fourplexes
(multifamily  structures  where each mortgagor owns the land upon which the unit
is built with the remaining adjacent land owned in common). Multifamily property
may include,  and  Mixed-Use  Property  will consist of,  mixed  commercial  and
residential   buildings.   The  mortgaged   properties  may  include  investment
properties  and vacation and second homes.  Commercial  property will consist of
income-producing  commercial  real estate.  Mortgage loans secured by commercial
property,  multifamily property and Mixed-Use Property may also be secured by an
assignment  of leases  and rents and  operating  or other  cash flow  guarantees
relating to the  mortgaged  properties  to the extent  specified  in the related
prospectus supplement.

     If stated in the related prospectus supplement, a mortgage pool may contain
mortgage  loans  with  adjustable  mortgage  rates.  Any  mortgage  loan with an
adjustable  mortgage rate may provide that on the day on which the mortgage rate
adjusts,  the  amount  of the  monthly  payments  on the  mortgage  loan will be
adjusted  to provide for the payment of the  remaining  principal  amount of the
mortgage loan with level  monthly  payments of principal and interest at the new
mortgage  rate to the maturity  date of the mortgage  loan.  Alternatively,  the
mortgage  loan may provide that the mortgage rate adjusts more  frequently  than
the monthly  payment.  As a result,  a greater or lesser  portion of the monthly
payment will be applied to the payment of principal on the mortgage  loan,  thus
increasing  or  decreasing  the rate at which the mortgage  loan is repaid.  See
"Yield  Considerations"  in this prospectus.  In the event that an adjustment to
the mortgage  rate causes the amount of interest  accrued in any month to exceed
the  amount  of the  monthly  payment  on such  mortgage  loan,  the  excess  or
"deferred" interest will be added to the principal balance of the mortgage loan,
unless  otherwise paid by the mortgagor,  and will bear interest at the mortgage
rate in effect  from time to time.  The  amount  by which the  mortgage  rate or
monthly  payment may increase or decrease and the  aggregate  amount of deferred
interest  on any  mortgage  loan  may be  subject  to  certain  limitations,  as
described in the related prospectus supplement.

     If stated in the prospectus supplement for the related series, the mortgage
rate on certain  adjustable  rate  mortgage  loans will be  convertible  from an
adjustable  rate to a fixed rate, at the option of the  mortgagor  under certain
circumstances.  If stated in the  related  prospectus  supplement,  the  related
pooling and  servicing  agreement  will  provide  that the seller from which the
depositor  acquired  the  convertible  adjustable  rate  mortgage  loans will be
obligated to repurchase from the trust fund any adjustable rate mortgage loan as
to which the conversion option has been exercised, at a purchase price set forth
in the related prospectus  supplement.  The amount of the purchase price will be
required to be deposited in the  Certificate  Account and will be distributed to
the certificateholders on the distribution date in the month following the month
of the exercise of the conversion  option.  The obligation of the related seller
to  repurchase  converted  adjustable  rate  mortgage  loans  may or may  not be
supported by cash, letters of credit, insurance policies, third party guarantees
or other similar arrangements.

                                       6
<PAGE>

     A  mortgage  pool  may  include  VA Loans or FHA  Loans.  VA Loans  will be
partially  guaranteed by the United States Department of Veteran's  Affairs,  or
VA,  under  the  Servicemen's   Readjustment  Act  of  1944,  as  amended.   The
Servicemen's  Readjustment  Act of 1944,  as amended,  permits a veteran,  or in
certain  instances the spouse of a veteran,  to obtain a mortgage loan guarantee
by the VA covering  mortgage  financing of the purchase of a one- to four-family
dwelling unit at interest rates permitted by the VA. The program has no mortgage
loan  limits,  requires  no down  payment  from the  purchasers  and permits the
guarantee of mortgage  loans of up to 30 years'  duration.  However,  no VA Loan
will have an original  principal  amount  greater than five times the partial VA
guarantee for such VA Loan. The maximum guarantee that may be issued by VA under
this  program  is 50% of the  principal  amount  of  the  mortgage  loan  if the
principal  amount of the mortgage loan is $45,000 or less, the lesser of $36,000
and 40% of the principal  amount of the mortgage loan if the principal amount of
the  mortgage  loan is greater  than $45,000 but less than or equal to $144,000,
and the lesser of $46,000 and 25% of the  principal  amount of the mortgage loan
if the principal amount of the mortgage loan is greater than $144,000.

     FHA Loans will be insured by the Federal Housing Administration, or FHA, as
authorized  under the National  Housing Act, as amended,  and the United  States
Housing Act of 1937,  as amended.  FHA Loans will be insured  under  various FHA
programs including the standard FHA 203-b programs to finance the acquisition of
one-to four-family housing units, the FHA 245 graduated payment mortgage program
and the FHA 221 and 223  programs  to finance  certain  multifamily  residential
rental  properties.  FHA  Loans  generally  require a minimum  down  payment  of
approximately  5% of the original  principal amount of the FHA Loan. No FHA Loan
may have an interest rate or original  principal amount exceeding the applicable
FHA limits at the time of origination of such FHA Loan.

     With respect to any trust fund that contains mortgage loans, the prospectus
supplement  for the series of  certificates  related to that  trust  fund,  will
contain  information  as to the type of mortgage  loans that will  comprise  the
related  mortgage  pool.  The related  prospectus  supplement  will also contain
information as to:

o    the aggregate  principal balance of the mortgage loans as of the applicable
     Cut-off Date,

o    the type of mortgaged  properties  securing the mortgage loans, o the range
     of original terms to maturity of the mortgage loans,

o    the range of  principal  balances  and  average  principal  balance  of the
     mortgage loans,

o    the  earliest  origination  date and latest  maturity  date of the mortgage
     loans,

o    the  aggregate  principal  balance of mortgage  loans having  loan-to-value
     ratios at origination exceeding 80%,

o    the interest rate or range of interest rates borne by the mortgage loans,

o    the geographical distribution of the mortgage loans,

o    the  aggregate  principal  balance  of  Buy-Down  Loans  or GPM  Loans,  if
     applicable,

o    the delinquency status of the mortgage loans as of the Cut-off Date,

o    with respect to adjustable rate mortgage loans,  the adjustment  dates, the
     highest,  lowest  and  weighted  average  margin,  the  limitations  on the
     adjustment of the interest rates on any  adjustment  date and over the life
     of the loans, and

o    whether the mortgage  loan provides for an interest only period and whether
     the  principal  amount  of that  mortgage  loan is fully  amortizing  or is
     amortized on the basis of a period of time that extends beyond the maturity
     date of the mortgage loan.

The aggregate principal balance of the mortgage loans or contracts in a mortgage
pool or contract pool as stated in the related prospectus  supplement is subject
to a permitted variance of plus or minus 5%.

     No  assurance  can be given that values of the  mortgaged  properties  in a
mortgage  pool have  remained  or will  remain  at their  levels on the dates of
origination  of the related  mortgage  loans.  If the real estate  market should
experience  an overall  decline in  property  values  such that the  outstanding
balances of the mortgage loans and any

                                       7
<PAGE>

secondary  financing on the mortgaged  properties in a particular  mortgage pool
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.  In addition,
the value of property  securing  Cooperative Loans and the delinquency rate with
respect  to  Cooperative  Loans  could  be  adversely  affected  if the  current
favorable  tax  treatment  of  cooperative  stockholders  were  to  become  less
favorable.  See "Certain Legal Aspects of the Mortgage Loans and  Contracts--The
Mortgage  Loans" in this  prospectus.  To the  extent  that such  losses are not
covered by the methods of credit support or the insurance  policies described in
this prospectus or by Alternative Credit Support,  they will be borne by holders
of the certificates of the series  evidencing  interests in the related mortgage
pool.

     The depositor will cause the mortgage loans constituting each mortgage pool
to be assigned to the trustee named in the applicable prospectus supplement, for
the benefit of the holders of the certificates of that series. The servicer,  if
any, named in the related prospectus supplement will service the mortgage loans,
either by itself or through other mortgage servicing institutions,  if any, or a
special  servicer,  if any,  pursuant to a pooling and servicing  agreement,  as
described in this prospectus,  among the servicer, the special servicer, if any,
the depositor and the trustee,  or a separate  servicing  agreement  between the
servicer  and the  depositor  and will  receive  a fee for those  services.  See
"--Mortgage  Loan  Program"  and  "Description  of  the  Certificates"  in  this
prospectus. With respect to those mortgage loans serviced by a special servicer,
the special  servicer will be required to service the related  mortgage loans in
accordance  with a  servicing  agreement  between the  servicer  and the special
servicer,  and will  receive the fee for the  services  specified in the related
agreement;   however,   the  servicer  will  remain  liable  for  its  servicing
obligations  under the pooling and servicing  agreement as if the servicer alone
were servicing the related mortgage loans.

     If stated in the applicable prospectus supplement,  the depositor will make
certain limited representations and warranties regarding the mortgage loans, but
its  assignment of the mortgage  loans to the trustee will be without  recourse.
See "Description of the  Certificates--Assignment of Mortgage Loans." The seller
of the  Mortgage  Loans  will  also make  certain  limited  representations  and
warranties  with  respect to the  Mortgage  Loans.  See "--  Representations  by
Unaffiliated Sellers;  Repurchases." The servicer's  obligations with respect to
the  mortgage  loans  will  consist  principally  of its  contractual  servicing
obligations under the related pooling and servicing agreement. This will include
its obligation to enforce certain purchase and other  obligations of any special
servicer,  subservicers and/or sellers unaffiliated with the depositor,  as more
fully    described    in    this    prospectus     under     "--Mortgage    Loan
Program--Representations by Unaffiliated Sellers;  Repurchases," "Description of
the Certificates--Assignment of Mortgage Loans" and "--Servicing by Unaffiliated
Sellers," and its obligations to make Advances in the event of  delinquencies in
payments  on or  with  respect  to the  mortgage  loans  or in  connection  with
prepayments and liquidations of the mortgage loans, in amounts described in this
prospectus  under  "Description  of the  Certificates--Advances."  Advances with
respect to delinquencies  will be limited to amounts that the servicer  believes
ultimately  would  be  reimbursable  under  any  applicable  financial  guaranty
insurance  policy or surety  bond,  letter of  credit,  pool  insurance  policy,
special hazard insurance  policy,  mortgagor  bankruptcy bond or other policy of
insurance,  from  amounts  in the  related  reserve  fund,  if  any,  under  any
Alternative Credit Support or out of the proceeds of liquidation of the mortgage
loans,  cash in the Certificate  Account or otherwise.  See  "Description of the
Certificates--Advances," "Credit Support" and "Description of Insurance" in this
prospectus.

     Single Family Mortgage  Loans.  The applicable  prospectus  supplement will
specify the types of mortgaged properties securing single family mortgage loans,
the  original  principal  balances  of the single  family  mortgage  loans,  the
original maturities of such mortgage loans and the loan-to-value  ratios of such
mortgage loans.  Single family mortgage loans may be  fully-amortizing  mortgage
loans or balloon mortgage loans. If stated in the related prospectus supplement,
a mortgage pool may also include  adjustable rate mortgage loans with a mortgage
interest rate  adjusted  periodically,  with  corresponding  adjustments  in the
amount of monthly payments,  to equal the sum, which may be rounded,  of a fixed
margin and an index  described  in that  prospectus  supplement,  subject to any
applicable  restrictions  on those  adjustments.  The  mortgage  pools  may also
include other types of single family  mortgage  loans to the extent set forth in
the applicable prospectus supplement.

     If provided for in the applicable  prospectus  supplement,  a mortgage pool
may contain  Buy-Down Loans.  The resulting  difference in payment on a Buy-Down
Loan shall be  compensated  for from amounts on deposit in the related  Buy-Down
Fund. In lieu of a cash deposit, if stated in the related prospectus supplement,
a letter of credit or  guaranteed  investment  contract  may be delivered to the
trustee to fund the Buy-Down Fund. See "Description of the


                                       8
<PAGE>

Certificates--Payments  on Mortgage  Loans" in this  prospectus.  Buy-Down Loans
included in a mortgage  pool will  provide for a reduction  in monthly  interest
payments by the mortgagor for a period of up to the first four years of the term
of such mortgage loans.

     If provided for in the applicable  prospectus  supplement,  a mortgage pool
may  contain  GPM Loans.  If stated in the related  prospectus  supplement,  the
resulting  difference  in payment on a GPM Loan  shall be  compensated  for from
amounts on deposit in the GPM Fund. In lieu of cash  deposit,  the depositor may
deliver to the  trustee a letter of credit,  guaranteed  investment  contract or
another instrument acceptable to the related Rating Agency to fund the GPM Fund.

     If  specified in the related  prospectus  supplement,  a mortgage  pool may
contain  "re-performing  loans", which includes previously delinquent loans that
have been brought  current,  mortgage loans that are subject to a repayment plan
or bankruptcy  plan, and that had arrearages of at least three monthly  payments
when the repayment plan or bankruptcy  plan was entered into, and mortgage loans
that have been  modified.  These mortgage loans may be acquired by the depositor
from a wide  variety of sources  through  bulk or  periodic  sales.  The rate of
default on  re-performing  mortgage loans may be higher than the rate of default
on mortgage loans that have not previously been in arrears.

     If specified in the applicable  prospectus  supplement,  the mortgage loans
may include "step-down"  mortgage loans, which permit the servicer to reduce the
interest  rate on the  mortgage  loan if the  borrower  has been  current in its
monthly  payments of principal  and  interest.  The amount by which the mortgage
rate may be reduced and the period during which the mortgage loan must have been
current will be specified in the mortgage note.


     Commercial,  Multifamily  and  Mixed-Use  Mortgage  Loans.  The  commercial
mortgage  loans,  multifamily  mortgage loans and Mixed-Use  Mortgage Loans will
consist of mortgage loans secured by first or junior  mortgages,  deeds of trust
or similar  security  instruments on, or installment  contracts for the sale of,
fee  simple  or  leasehold   interests  in  commercial  real  estate   property,
multifamily  residential  property,  cooperatively owned multifamily  properties
and/or mixed  residential  and  commercial  property,  and related  property and
interests.  Commercial mortgage loans,  multifamily mortgage loans and Mixed-Use
Mortgage Loans will not represent  substantially all of the aggregate  principal
balance of any mortgage pool as of the related Cut-off Date.


     Certain of the commercial mortgage loans, multifamily mortgage loans and
Mixed-Use  Mortgage Loans may be Simple Interest Loans, and other mortgage loans
may provide for payment of interest in advance rather than in arrears.

     The commercial  mortgage  loans,  multifamily  mortgage loans and Mixed-Use
Mortgage  Loans may also be  secured  by one or more  assignments  of leases and
rents,  management  agreements or operating agreements relating to the mortgaged
property and in some cases by certain letters of credit,  personal guarantees or
both.  Pursuant to an  assignment  of leases and rents,  the  related  mortgagor
assigns its right,  title and interest as landlord  under each related lease and
the income derived therefrom to the related lender, while retaining a license to
collect the rents for so long as there is no default. If the mortgagor defaults,
the license  terminates  and the related lender is entitled to collect the rents
from tenants to be applied to the monetary  obligations of the mortgagor.  State
law may limit or restrict the  enforcement of the assignment of leases and rents
by a lender until the lender takes possession of the related mortgaged  property
and a receiver is appointed.  See "Certain  Legal Aspects of the Mortgage  Loans
and Contracts--Leases and Rents" in this prospectus.

     The  prospectus  supplement  relating  to  each  series  will  specify  the
originator or originators relating to the commercial mortgage loans, multifamily
mortgage loans and Mixed-Use  Mortgage Loans,  which may include,  among others,
commercial banks, savings and loan associations,  other financial  institutions,
insurance companies or real estate developers and, to the extent available,  the
underwriting criteria in connection with originating the related mortgage loans.

     Commercial,  multifamily  and  mixed-use  real estate  lending is generally
viewed as exposing the lender to a greater risk of loss than one- to four-family
residential lending.  Commercial,  multifamily and mixed-use real estate lending
typically  involves  larger  loans to single  borrowers  or  groups  of  related
borrowers than residential one- to four-family mortgage loans. Furthermore,  the
repayment of loans secured by income producing properties is


                                       9
<PAGE>

typically  dependent  upon the  successful  operation of the related real estate
project.  If the cash flow from the project is reduced,  for example,  if leases
are not  obtained or renewed,  the  borrower's  ability to repay the loan may be
impaired.  Commercial,  multifamily  and  mixed-use  real estate can be affected
significantly  by supply  and  demand  in the  market  for the type of  property
securing the loan and, therefore, may be subject to adverse economic conditions.
Market  values  may  vary  as  a  result  of  economic  events  or  governmental
regulations  outside the control of the borrower or lender, such as rent control
laws,  which impact the future cash flow of the property.  Corresponding  to the
greater  lending  risk  is  a  generally  higher  interest  rate  applicable  to
commercial, multifamily and mixed-use real estate lending.

     Balloon Loans. A mortgagor's ability to pay the balloon amount at maturity,
which,  based on the  amortization  schedule of those loans, is expected to be a
substantial  amount,  will typically depend on the mortgagor's ability to obtain
refinancing of the related mortgage loan or to sell the mortgaged property prior
to the  maturity of the balloon  loan.  The ability to obtain  refinancing  will
depend on a number of  factors  prevailing  at the time  refinancing  or sale is
required,  including,  without  limitation,  real estate values, the mortgagor's
financial  situation,  the level of available  mortgage loan interest rates, the
mortgagor's  equity in the  related  mortgaged  property,  tax laws,  prevailing
general  economic  conditions  and the terms of any related  first lien mortgage
loan.  Neither the  depositor,  the servicer or  subservicer,  the  trustee,  as
applicable,  nor any of their  affiliates  will be  obligated  to  refinance  or
repurchase any mortgage loan or to sell the mortgaged property.

     Simple  Interest  Loans.  If  specified  in  the  accompanying   prospectus
supplement,  a portion of the loans  underlying  a series of  securities  may be
simple interest  loans. A simple interest loan provides the  amortization of the
amount financed under the loan over a series of equal monthly payments,  except,
in the case of a balloon mortgage loan, the final payment.  Each monthly payment
consists of an  installment  of interest which is calculated on the basis of the
outstanding principal balance of the loan multiplied by the stated loan rate and
further multiplied by a fraction, with the numerator equal to the number of days
in the period  elapsed since the preceding  payment of interest was made and the
denominator  equal to the number of days in the annual period for which interest
accrues on the loan. As payments are received under a simple  interest loan, the
amount received is applied first to interest  accrued to the date of payment and
then the  remaining  amount is applied to pay any unpaid fees and then to reduce
the unpaid principal  balance.  Accordingly,  if a borrower pays a fixed monthly
installment on a simple interest loan before its scheduled due date, the portion
of the payment  allocable to interest for the period since the preceding payment
was made  will be less  than it would  have  been had the  payment  been made as
scheduled, and the portion of the payment applied to reduce the unpaid principal
balance will be correspondingly greater. On the other hand, if a borrower pays a
fixed  monthly  installment  after its  scheduled  due date,  the portion of the
payment  allocable to interest for the period  since the  preceding  payment was
made  will be  greater  than it would  have  been had the  payment  been made as
scheduled,  and the remaining portion,  if any, of the payment applied to reduce
the unpaid  principal  balance will be  correspondingly  less. If each scheduled
payment  under a simple  interest  loan is made on or prior to its scheduled due
date,  the  principal  balance  of the loan  will  amortize  more  quickly  than
scheduled.  However, if the borrower consistently makes scheduled payments after
the scheduled due date, the loan will amortize more slowly than scheduled.  If a
simple  interest loan is prepaid,  the borrower is required to pay interest only
to the date of prepayment. The variable allocations among principal and interest
of a simple interest loan may affect the distributions of principal and interest
on the securities, as described in the accompanying prospectus supplement.

     Monthly  payments on most loans are  computed  and applied on an  actuarial
basis.  Monthly  payments  on  actuarial  loans are applied  first to  interest,
generally in an amount equal to,  one-twelfth of the applicable  loan rate times
the unpaid  principal  balance,  with any  remainder  of the payment  applied to
principal.

Underwriting Standards for Mortgage Loans

     The  depositor  expects that the  originator of each of the loans will have
applied,  consistent  with  applicable  federal and state laws and  regulations,
underwriting  procedures intended to evaluate the borrower's credit standing and
repayment  ability  and/or the value and  adequacy  of the  related  property as
collateral.  The depositor  expects that any FHA loan or VA loans will have been
originated  in  compliance  with  the  underwriting  policies  of the FHA or VA,
respectively.  The underwriting criteria applied by the originators of the loans
included  in a pool may  vary  significantly  among  sellers.  The  accompanying
prospectus  supplement will describe most aspects of the underwriting  criteria,
to the extent known by the  depositor,  that were applied by the  originators of
the loans. In

                                       10
<PAGE>

most cases,  the depositor  will have less detailed  information  concerning the
origination  of  seasoned  loans than it will have  concerning  newly-originated
loans.

     The underwriting standards of any particular originator typically include a
set of specific criteria by which the underwriting  evaluation is made. However,
the application of the underwriting  standards does not imply that each specific
criterion was satisfied  individually.  Rather,  a loan will be considered to be
originated in accordance with a given set of underwriting standards if, based on
an overall qualitative  evaluation,  the loan is in substantial  compliance with
the underwriting standards. For example, a loan may be considered to comply with
a set of underwriting standards,  even if one or more specific criteria included
in the underwriting  standards were not satisfied,  if other factors compensated
for the criteria  that were not  satisfied or if the loan is considered to be in
substantial compliance with the underwriting standards.

     Mortgage loans may have been originated  over the internet,  or acquired by
the  depositor or the seller  pursuant to a purchase  that was arranged over the
internet.

     Single and  Multi-Family  Mortgage  Loans.  The  mortgage  credit  approval
process for one- to four-family  residential loans follows a standard  procedure
that generally  complies with FHLMC and FNMA regulations and guidelines,  except
that certain  mortgage loans may have higher loan amount and qualifying  ratios,
and  applicable  federal  and state laws and  regulations.  The credit  approval
process for Cooperative  Loans follows a procedure that generally  complies with
applicable  FNMA  regulations  and  guidelines,  except for the loan amounts and
qualifying ratios,  and applicable  federal and state laws and regulations.  The
originator  of  a  mortgage  loan  generally  will  review  a  detailed   credit
application by the prospective  mortgagor  designed to provide  pertinent credit
information, including a current balance sheet describing assets and liabilities
and a statement of income and expenses, as well as an authorization to apply for
a credit report that summarizes the prospective  mortgagor's credit history with
local  merchants  and  lenders and any record of  bankruptcy.  In  addition,  an
employment  verification is obtained from the prospective  mortgagor's  employer
wherein the employer  reports the length of employment  with that  organization,
the current  salary,  and gives an  indication as to whether it is expected that
the prospective  mortgagor will continue such  employment in the future.  If the
prospective  mortgagor is self-employed,  he or she is required to submit copies
of signed  tax  returns.  The  prospective  mortgagor  may also be  required  to
authorize  verification  of  deposits  at  financial  institutions.  In  certain
circumstances, other credit considerations may cause the originator or depositor
not to require some of the above  documents,  statements or proofs in connection
with the origination or purchase of certain mortgage loans.

     An appraisal  generally will be required to be made on each residence to be
financed.  Such appraisal  generally will be made by an appraiser who meets FNMA
requirements as an appraiser of one- to four-family residential properties.  The
appraiser  is  required to inspect  the  property  and verify that it is in good
condition  and that,  if new,  construction  has been  completed.  The appraisal
generally will be based on the appraiser's judgment of value, giving appropriate
weight to both the market  value of  comparable  homes and the cost of replacing
the  residence.  Alternatively,  as  specified  in the  accompanying  prospectus
supplement, values may be supported by:

o     a statistical valuation;

o     a broker's price opinion; or

o     a drive-by appraisal or other certification of value.

     Based on the data provided,  certain  verifications  and the  appraisal,  a
determination is made by the originator as to whether the prospective  mortgagor
has sufficient  monthly  income  available to meet the  prospective  mortgagor's
monthly  obligations  on the  proposed  loan and other  expenses  related to the
residence, such as property taxes, hazard and primary mortgage insurance and, if
applicable,  maintenance,  and other  financial  obligations  and monthly living
expenses.  Each originator's lending guidelines for conventional  mortgage loans
generally  will specify that mortgage  payments plus taxes and insurance and all
monthly payments extending beyond one year,  including those mentioned above and
other  fixed  obligations,  such as car  payments,  would  equal  no  more  than
specified  percentages  of  the  prospective  mortgagor's  gross  income.  These
guidelines will be applied only to the payments to be made during the first year
of the loan. Other credit  considerations may cause an originator to depart from
these guidelines.  For example, when two individuals co-sign the loan documents,
the incomes and expenses of both individuals may be included in the computation.

                                       11
<PAGE>

     The  mortgaged  properties  may be located in states where,  in general,  a
lender  providing  credit on a single-family  property may not seek a deficiency
judgment  against the  mortgagor but rather must look solely to the property for
repayment  in  the  event  of  foreclosure.   Lenders'  underwriting   standards
applicable to all states,  including  anti-deficiency states,  typically require
that the value of the property  being  financed,  as indicated by the appraisal,
currently  supports and is anticipated to support in the future the  outstanding
loan balance.

     Certain of the types of mortgage loans that may be included in the mortgage
pools may involve  additional  uncertainties not present in traditional types of
loans.  For example,  Buy-Down  Loans and GPM Loans  provide for  escalating  or
variable  payments  by  the  mortgagor.   These  types  of  mortgage  loans  are
underwritten on the basis of a judgment that the mortgagor will have the ability
to make larger  monthly  payments in  subsequent  years.  In some  instances the
mortgagor's  income  may not be  sufficient  to  enable it to  continue  to make
scheduled loan payments as such payments increase.

     To the extent specified in the related prospectus supplement, the depositor
may purchase  mortgage loans for inclusion in a trust fund that are underwritten
under standards and procedures which vary from and are less stringent than those
described in this prospectus.  For instance,  mortgage loans may be underwritten
under a  "limited  documentation"  program if stated in the  related  prospectus
supplement. With respect to these mortgage loans, minimal investigation into the
borrowers' credit history and income profile is undertaken by the originator and
such mortgage loans may be  underwritten  primarily on the basis of an appraisal
of the mortgaged property or Cooperative Dwelling and the loan-to-value ratio at
origination.  Thus,  if the  loan-to-value  ratio  is  less  than  a  percentage
specified  in the  related  prospectus  supplement,  the  originator  may forego
certain aspects of the review relating to monthly income, and traditional ratios
of monthly or total expenses to gross income may not be considered.

     Other  examples of  underwriting  standards that may be less stringent than
traditional  underwriting  standards include investment  properties,  loans with
high loan-to-value  ratios and no primary mortgage insurance,  and loans made to
borrowers with imperfect credit histories.

     The loan-to-value ratio of a mortgage loan will be equal to:

o    the original principal amount of the mortgage loan divided by the lesser of
     the "appraised value" or the sales price for the mortgaged property; or

o    such other ratio as described in the related prospectus supplement.

     The  underwriting  standards  for  mortgage  loans  secured by  multifamily
property will be described in the related prospectus supplement.

     Commercial and Mixed-Use  Mortgage Loans. The  underwriting  procedures and
standards for commercial mortgage loans and Mixed-Use Mortgage Loans included in
a mortgage  pool will be specified in the related  prospectus  supplement to the
extent such procedures and standards are known or available. Such mortgage loans
may be  originated  in  contemplation  of the  transactions  described  in  this
prospectus and the related prospectus  supplement or may have been originated by
third-parties  and acquired by the depositor  directly or through its affiliates
in negotiated transactions.

     The  majority of  originators  of  commercial  mortgage  loans or Mixed-Use
Mortgage Loans will have applied  underwriting  procedures intended to evaluate,
among  other  things,  the  income  derived  from the  mortgaged  property,  the
capabilities   of  the  management  of  the  project,   including  a  review  of
management's  past  performance  record,  its  management  reporting and control
procedures,  to determine its ability to recognize and respond to problems,  and
its accounting  procedures to determine cash management  ability,  the obligor's
credit  standing  and  repayment  ability  and the  value  and  adequacy  of the
mortgaged property as collateral.

     If  stated  in  the  related  prospectus  supplement,  the  adequacy  of  a
commercial  property  or  Mixed-Use  Property  as security  for  repayment  will
generally  have been  determined  by an appraisal  by an  appraiser  selected in
accordance with  preestablished  guidelines  established by or acceptable to the
loan originator for appraisers.  If stated in the related prospectus supplement,
the appraiser must have personally inspected the property and verified that it


                                       12
<PAGE>

was in good condition and that  construction,  if new, has been  completed.  The
appraisal  will have been based upon a cash flow  analysis  and/or a market data
analysis of recent sales of comparable properties and, when deemed applicable, a
replacement  cost  analysis  based  on  the  current  cost  of  constructing  or
purchasing a similar  property,  or such other factors that are described in the
applicable prospectus supplement.

     No  assurance  can be given that  values of any  commercial  properties  or
Mixed-Use  Properties  in a mortgage  pool have remained or will remain at their
levels on the dates of origination of the related mortgage loans. Further, there
is no assurance  that  appreciation  of real estate values  generally will limit
loss  experiences  on  commercial  properties  or Mixed-Use  Properties.  If the
commercial  real estate market should  experience an overall decline in property
values such that the  outstanding  balances  of any  commercial  mortgage  loans
and/or  Mixed-Use  Mortgage  Loans and any  additional  financing on the related
mortgaged  properties  in a particular  mortgage pool become equal to or greater
than the value of the mortgaged  properties,  the actual rates of delinquencies,
foreclosures  and losses on such  mortgage  loans could be higher than those now
generally  experienced in the mortgage lending industry. To the extent that such
losses  are not  covered  by the  methods  of credit  support  or the  insurance
policies  described in this prospectus or by Alternative  Credit  Support,  they
will be borne by holders of the certificates of the series evidencing  interests
in the mortgage pool. Even where credit support covers all losses resulting from
defaults  and  foreclosure,  the effect of defaults and  foreclosures  may be to
increase  prepayment  experience on the related mortgage loans,  thus shortening
weighted average life and affecting yield to maturity.

Qualifications of Unaffiliated Sellers

     Each  seller  unaffiliated  with  the  depositor  must  be  an  institution
experienced  in originating  conventional  mortgage loans and/or FHA Loans or VA
Loans in accordance  with accepted  practices and prudent  guidelines,  and must
maintain  satisfactory  facilities to originate  those loans, or have such other
origination  or  servicing  experience  as  may  be  specified  in  the  related
prospectus supplement.

Representations by Unaffiliated Sellers; Repurchases

     If stated in the  related  prospectus  supplement,  each  seller  that sold
mortgage  loans  directly  or  indirectly  to  the  depositor,  will  have  made
representations  and  warranties  in respect of the mortgage  loans sold by that
seller. These representations and warranties will generally include, among other
things:

o    with respect to each mortgaged  property,  that title insurance,  or in the
     case of  mortgaged  properties  located in areas  where such  policies  are
     generally  not  available,  an  attorney's  certificate  of title,  and any
     required  hazard  and  primary  mortgage  insurance  was  effective  at the
     origination of each mortgage loan, and that each policy,  or certificate of
     title, remained in effect on the date of purchase of the mortgage loan from
     the seller;

o    that the seller had good and marketable title to each mortgage loan sold by
     it;

o    to the best of the seller's knowledge,  the mortgaged property is free from
     damage and in good repair;

o    with respect to each mortgaged property,  that each mortgage  constituted a
     valid first lien, or, if  applicable,  a more junior lien, on the mortgaged
     property, subject only to permissible title insurance exceptions; and

o    that there were no delinquent tax or assessment liens against the mortgaged
     property.

     With respect to a Cooperative  Loan,  the seller will represent and warrant
that:

o    the  security  interest  created  by the  cooperative  security  agreements
     constituted a valid first lien, or, if  applicable,  a more junior lien, on
     the collateral  securing the Cooperative Loan,  subject to the right of the
     related  Cooperative to cancel shares and terminate the  proprietary  lease
     for  unpaid  assessments  and to the lien of the  related  Cooperative  for
     unpaid  assessments  representing  the  mortgagor's  pro rata  share of the
     Cooperative's  payments for its mortgage,  current and future real property
     taxes,  maintenance  charges and other assessments to which like collateral
     is commonly subject; and

                                       13
<PAGE>

o    the  related  cooperative  apartment  was free from  damage and was in good
     repair.

     The  representations  and  warranties  of a seller in respect of a mortgage
loan  generally will have been made as of the date on which that seller sold the
mortgage loan to the depositor or its  affiliate.  A substantial  period of time
may have  elapsed  between  such date and the date of  initial  issuance  of the
series of certificates  evidencing an interest in that mortgage loan.  Since the
representations  and warranties of a seller do not address events that may occur
following the sale of a mortgage loan by that seller, the repurchase  obligation
described  below will not arise if, during the period  commencing on the date of
sale of a mortgage  loan by that  seller to or on behalf of the  depositor,  the
relevant event occurs that would have given rise to a repurchase  obligation had
the event occurred prior to sale of the affected  mortgage  loan.  However,  the
depositor will not include any mortgage loan in the trust fund for any series of
certificates if anything has come to the depositor's  attention that would cause
it to believe that the  representations  and warranties of an seller will not be
accurate  and  complete  in all  material  respects  in respect  of the  related
mortgage  loan  as of the  related  Cut-off  Date.  If  stated  in  the  related
prospectus  supplement,  the  seller  may have  made no, or  extremely  limited,
representations and warranties regarding the mortgage loans.

     In most cases,  the  depositor  will assign its rights with  respect to the
representations and warranties of the seller regarding the mortgage loans to the
trustee for the benefit of the certificateholders.  Alternatively, the depositor
will make similar representations and warranties regarding the mortgage loans to
the trustee for the benefit of the certificateholders. Upon the discovery of the
breach of any  representation  or warranty  made by a seller or the depositor in
respect of a mortgage loan that  materially and adversely  affects the interests
of the  certificateholders  of the related series, that seller or the depositor,
as the case may be, will be  obligated  to  repurchase  the  mortgage  loan at a
purchase price equal to 100% of the unpaid principal balance thereof at the date
of  repurchase  or,  in the case of a series  of  certificates  as to which  the
depositor has elected to treat the related trust fund as a REMIC,  as defined in
the Code, at some other price as may be necessary to avoid a tax on a prohibited
transaction,  as described in Section 860F(a) of the Code, in each case together
with accrued interest on the mortgage loans in the related mortgage pool, to the
first  day  of  the  month  following  the  repurchase  and  the  amount  of any
unreimbursed  Advances made by the servicer or  subservicer,  as applicable,  in
respect of that  mortgage  loan.  The servicer  will be required to enforce this
obligation for the benefit of the trustee and the certificateholders,  following
the  practices it would employ in its good faith  business  judgment were it the
owner of that mortgage  loan.  Subject to the right,  if any, and the ability of
the seller or the  depositor to  substitute  for certain  mortgage  loans,  this
repurchase   obligation   constitutes   the  sole   remedy   available   to  the
certificateholders  of the  related  series  for a breach of  representation  or
warranty by a seller or the depositor.

     If stated in the related prospectus supplement,  if the seller or depositor
discovers or receives notice of any breach of its representations and warranties
relating to a mortgage loan within two years of the date of the initial issuance
of  the  certificates,  or  other  period  as may be  specified  in the  related
prospectus  supplement,  the seller or depositor  may remove that  mortgage loan
from the trust fund, rather than repurchase the mortgage loan as provided above,
and substitute in its place a substitute  mortgage loan. Any substitute mortgage
loan, on the date of substitution, will:

o    have an outstanding  principal  balance,  after  deduction of all scheduled
     payments due in the month of substitution, not in excess of the outstanding
     principal balance of the mortgage loan that it is replacing,  the amount of
     any  shortfall  to be  distributed  to  certificateholders  in the month of
     substitution;

o    have a mortgage rate not less than,  and not more than 1% greater than, the
     mortgage rate of the mortgage loan that it is replacing;

o    have a remaining  term to maturity not greater than,  and not more than one
     year less than, that of the mortgage loan that it is replacing; and

o    comply with all the representations and warranties set forth in the related
     pooling and servicing agreement as of the date of substitution.

This repurchase or substitution obligation constitutes the sole remedy available
to the certificateholders or the trustee for any breach of representation.

                                       14
<PAGE>

     No  assurance  can be given that  sellers  will carry out their  respective
repurchase obligations with respect to mortgage loans. Neither the depositor nor
any other person will be obligated to  repurchase  mortgage  loans if the seller
fails to do so.

Mortgage Certificates

     If stated in the prospectus  supplement with respect to a series, the trust
fund for such series may include  Mortgage  Certificates.  A description  of the
mortgage loans underlying the Mortgage  Certificates and the related pooling and
servicing   arrangements  will  be  set  forth  in  the  applicable   prospectus
supplement.   The  applicable  prospectus   supplement,   will  also  set  forth
information  with respect to the entity or entities forming the related mortgage
pool,   the  issuer  of  any  credit   support  with  respect  to  the  Mortgage
Certificates,  the aggregate  outstanding principal balance and the pass-through
rate  borne  by each  Mortgage  Certificate  included  in the  trust  fund.  The
inclusion of Mortgage  Certificates  in a trust fund with respect to a series of
certificates  is  conditioned  upon  their  characteristics  being  in form  and
substance satisfactory to the related Rating Agency.

The Contract Pools

     General.  If stated in the prospectus  supplement with respect to a series,
the trust fund for that series may include a contract pool evidencing  interests
in  manufactured  housing  conditional  sales  contracts  and  installment  loan
agreements originated by a manufactured housing dealer in the ordinary course of
business and  purchased by the  depositor.  The  contracts  may be  conventional
manufactured  housing  contracts  or  contracts  insured by the FHA or partially
guaranteed by the VA. Each contract will be secured by a manufactured  home. The
contracts may be fully  amortizing or provide for a balloon payment at maturity,
and will bear  interest at a fixed  annual  percentage  rate or a variable  rate
described in the applicable prospectus supplement.

     The manufactured homes securing the contracts consist of manufactured homes
within the meaning of 42 United States Code,  Section  5402(6),  which defines a
"manufactured  home" as "a  structure,  transportable  in one or more  sections,
which in the  traveling  mode, is eight body feet or more in width or forty body
feet or more in length,  or, when erected on site,  is three  hundred  twenty or
more square feet,  and which is built on a permanent  chassis and designed to be
used as a dwelling with or without a permanent  foundation when connected to the
required utilities,  and includes the plumbing,  heating, air conditioning,  and
electrical  systems contained  therein;  except that such term shall include any
structure which meets all the  requirements of [this]  paragraph except the size
requirements  and with  respect to which the  manufacturer  voluntarily  files a
certification  required by the  Secretary of Housing and Urban  Development  and
complies with the standards established under [this] chapter."

     The depositor will cause the contracts  constituting  each contract pool to
be assigned to the trustee named in the related  prospectus  supplement  for the
benefit of the related certificateholders. The servicer specified in the related
prospectus  supplement  will service the contracts,  either by itself or through
other  subservicers,   pursuant  to  a  pooling  and  servicing  agreement.  See
"Description of the  Certificates--Servicing  by  Unaffiliated  Sellers" in this
prospectus.  With respect to those contracts  serviced by the servicer through a
subservicer, the servicer will remain liable for its servicing obligations under
the related  pooling  and  servicing  agreement  as if the  servicer  alone were
servicing the related contracts. If stated in the related prospectus supplement,
the contract documents may be held for the benefit of the trustee by a custodian
appointed pursuant to a custodial agreement among the depositor, the trustee and
the custodian named in the custodial agreement.

     The related prospectus supplement, or, if such information is not available
in advance of the date of the related prospectus  supplement,  will specify, for
the contracts contained in the related contract pool, among other things:

o    the range of dates of origination of the contracts;

o    the weighted average annual percentage rate on the contracts;

o    the range of outstanding principal balances as of the Cut-off Date;

o    the  average  outstanding  principal  balance  of the  contracts  as of the
     Cut-off Date;

o    the weighted average term to maturity as of the Cut-off Date; and

                                       15
<PAGE>

o    the range of original maturities of the contracts.

     The servicer or the seller of the contracts  will  represent and warrant as
to the payment  status of the  contracts  as of the  Cut-off  Date and as to the
accuracy  in all  material  respects  of certain  information  furnished  to the
trustee in respect of each such  contract.  Upon a breach of any  representation
that materially and adversely affects the interest of the  certificateholders in
a contract, the servicer or the seller, as appropriate, will be obligated either
to cure the breach in all  material  respects or to purchase the contract or, if
stated in the related prospectus  supplement,  to substitute another contract as
described below. This repurchase or substitution obligation constitutes the sole
remedy  available  to the  certificateholders  or the  trustee  for a breach  of
representation by the servicer, or seller.

Underwriting Standards for Contracts

     Conventional  contracts will comply with the  underwriting  policies of the
originator or seller as described in the related prospectus supplement.

     With respect to a contract  made in connection  with the related  obligor's
purchase of a manufactured  home, the "appraised value" is the amount determined
by  a  professional  appraiser.   The  appraiser  must  personally  inspect  the
manufactured  home and  prepare a report  which  includes  market  data based on
recent sales of comparable  manufactured  homes and, when deemed  applicable,  a
replacement  cost analysis  based on the current cost of a similar  manufactured
home. The loan-to-value ratio of a contract will be equal to:

o    the original  principal amount of the contract divided by the lesser of the
     "appraised value" or the sales price for the manufactured home; or

o    such other ratio as described in the related prospectus supplement.

Pre-Funding

     If stated in the related prospectus  supplement,  a portion of the issuance
proceeds of the  certificates  of a  particular  series will be  deposited  in a
pre-funding  account to be established  with the trustee,  which will be used to
acquire additional mortgage loans or contracts from time to time during the time
period specified in the related prospectus  supplement.  Prior to the investment
of amounts on deposit in the related  pre-funding account in additional mortgage
loans or  contracts,  those  amounts  may be  invested  in one or more  Eligible
Investments,  or  other  investments  that  may  be  specified  in  the  related
prospectus supplement.

     Additional  mortgage  loans or contracts that are purchased with amounts on
deposit in a pre-funding account will be required to satisfy certain eligibility
criteria  more  fully  set  forth  in the  related  prospectus  supplement.  The
eligibility  criteria  for  additional  mortgage  loans  or  contracts  will  be
consistent  with the  eligibility  criteria of the  mortgage  loans or contracts
included in the related trust fund as of the related closing date subject to the
exceptions that are stated in the related prospectus supplement.

     Although the specific  parameters of a pre-funding  account with respect to
any  issuance  of  certificates  will be  specified  in the  related  prospectus
supplement, it is anticipated that:

o    the period  during which  additional  mortgage  loans or  contracts  may be
     purchased from amounts on deposit in the related  pre-funding  account will
     not exceed 90 days from the related closing date; and

o    the  additional  mortgage  loans or contracts to be acquired by the related
     trust fund will be subject to the same  representations  and  warranties as
     the mortgage  loans or contracts  included in the related trust fund on the
     related closing date,  although additional criteria may also be required to
     be satisfied, as described in the related prospectus supplement.

In no event will the period during which additional  mortgage loans or contracts
may be purchased exceed one year. In no event will the amounts on deposit in any
pre-funding   account  exceed  25%  of  the  initial  principal  amount  of  the
certificates of the related series.

                                       16
<PAGE>

                                  The Depositor

     The  depositor  was  incorporated  in the State of Delaware on December 31,
1985, as a wholly-owned subsidiary of First Boston Securities  Corporation,  the
name of which was subsequently  changed to Credit Suisse First Boston Securities
Corporation,  or FBSC. FBSC is a wholly-owned  subsidiary of Credit Suisse First
Boston,  Inc.  Credit  Suisse  First  Boston  Corporation,  which  may act as an
underwriter in offerings made by this prospectus and an accompanying  prospectus
supplement, as described in "Plan of Distribution" in this prospectus, is also a
wholly-owned  subsidiary  of Credit  Suisse First  Boston,  Inc.  The  principal
executive  offices of the depositor are located at 11 Madison Avenue,  New York,
N.Y. 10010. Its telephone number is (212) 325-2000.

     The  depositor  was  organized,  among other  things,  for the  purposes of
establishing trusts,  selling beneficial interests in those trusts and acquiring
and selling mortgage assets to those trusts.  Neither the depositor,  its parent
nor any of the depositor's affiliates will ensure or guarantee  distributions on
the certificates of any series.

     Trust Assets will be acquired by the depositor directly or through one or
more affiliates.

                                 Use of Proceeds

     The depositor will apply all or substantially  all of the net proceeds from
the sale of each series offered by this prospectus and by the related prospectus
supplement to purchase the Trust Assets,  to repay  indebtedness  which has been
incurred to obtain funds to acquire the Trust  Assets,  to establish the reserve
funds,  if any, for the series and to pay costs of  structuring  and issuing the
certificates.  If stated in the related prospectus supplement,  certificates may
be exchanged by the depositor for Trust Assets. The Trust Assets for each series
of certificates  will be acquired by the depositor either  directly,  or through
one or more  affiliates  which will have  acquired the related Trust Assets from
time to time either in the open market or in privately negotiated transactions.

                              Yield Considerations

     The yield to  maturity  of a security  will depend on the price paid by the
holder of the  security,  the  pass-through  rate on any  security  entitled  to
payments  of  interest,  which  pass-through  rate  may  vary if  stated  in the
accompanying  prospectus  supplement,  and the  rate  and  timing  of  principal
payments on the loans, including prepayments,  liquidations and repurchases, and
the  allocation  of principal  payments to reduce the  principal  balance of the
security or notional amount thereof, if applicable.

     In general,  if a security is  purchased  at a premium over its face amount
and  payments  of  principal  on the  related  loan occur at a rate  faster than
anticipated at the time of purchase,  the  purchaser's  actual yield to maturity
will be lower than that assumed at the time of purchase. On the other hand, if a
class of securities is purchased at a discount from its face amount and payments
of principal on the related loan occur at a rate slower than  anticipated at the
time of purchase,  the  purchaser's  actual yield to maturity will be lower than
assumed.  The effect of principal  prepayments,  liquidations  and  purchases on
yield  will be  particularly  significant  in the case of a class of  securities
entitled to payments of interest only or disproportionate  payments of interest.
In addition,  the total return to investors of securities  evidencing a right to
distributions  of interest at a rate that is based on the  weighted  average net
loan rate of the loans from time to time will be adversely affected by principal
prepayments on loans with loan rates higher than the weighted  average loan rate
on the loans.  In general,  loans with higher loan rates prepay at a faster rate
than loans with lower loan rates. In some  circumstances  rapid  prepayments may
result in the failure of the holders to recoup  their  original  investment.  In
addition,  the  yield to  maturity  on other  types of  classes  of  securities,
including  accrual   securities,   securities  with  a  pass-through  rate  that
fluctuates  inversely  with or at a multiple  of an index or other  classes in a
series  including  more than one class of  securities,  may be  relatively  more
sensitive to the rate of  prepayment  on the related loans than other classes of
securities.

     A class of  securities  may be entitled to payments of interest at a fixed,
variable or adjustable  pass-through  rate, or any  combination of  pass-through
rates, each as specified in the accompanying  prospectus supplement.  A variable
pass-through  rate may be  calculated  based on the weighted  average of the net
loan rates,  net of servicing fees and any excess  spread,  of the related loans
for the month preceding the distribution  date. An adjustable  pass-through rate
may be calculated by reference to an index or otherwise.

                                       17
<PAGE>

     The aggregate payments of interest on a class of securities,  and the yield
to  maturity  on that  security,  will be  affected  by the rate of  payment  of
principal on the securities,  or the rate of reduction in the notional amount of
securities entitled to payments of interest only, and, in the case of securities
evidencing  interests in adjustable  rate mortgage  loans, by changes in the net
loan rates on the adjustable rate mortgage  loans.  See "Maturity and Prepayment
Considerations"  in this  prospectus.  The yield on the securities  will also be
affected by liquidations of loans following  borrower  defaults and by purchases
of loans in the event of breaches of  representations  made for the loans by the
depositor,  the  servicer or the  subservicer  and  others,  or  conversions  of
adjustable rate mortgage loans to a fixed interest rate. See "The Trust Fund" in
this prospectus.

     In general,  defaults on mortgage loans and contracts are expected to occur
with greater  frequency  in their early  years.  The rate of default on cash out
refinance,  limited  documentation  or no  documentation  mortgage loans, and on
loans  with high  loan-to-value  ratios or  combined  loan-to-value  ratios,  as
applicable,  may be higher than for other types of loans.  Likewise, the rate of
default  on loans  that  have  been  originated  under  lower  than  traditional
underwriting  standards may be higher than those  originated  under  traditional
standards.  A trust fund may include  mortgage  loans or contracts  that are one
month or more  delinquent  at the time of  offering  of the  related  series  of
securities or which have recently been several  months  delinquent.  The rate of
default on  delinquent  mortgage  loans or mortgage  loans or  contracts  with a
recent history of delinquency,  including re-performing loans, is more likely to
be higher than the rate of default on loans that have a current payment status.

     The rate of  defaults  and the  severity  of  losses on  mortgage  loans or
contracts  with document  deficiencies  may be higher than for mortgage loans or
contracts with no  documentation  deficiencies.  To the extent that any document
relating to a loan is not in the  possession of the trustee,  the deficiency may
make it  difficult or  impossible  to realize on the  mortgaged  property in the
event of foreclosure, which will affect the timing and the amount of liquidation
proceeds received by the trustee.

     The risk of loss may also be greater on mortgage  loans or  contracts  with
loan-to-value  ratios or combined  loan-to-value  ratios greater than 80% and no
primary insurance policies.  The yield on any class of securities and the timing
of  principal  payments on that class may also be affected by  modifications  or
actions that may be taken or approved by the servicer, the subservicer or any of
their  affiliates  as described in this  prospectus  under  "Description  of the
Certificates--Servicing  of Mortgage Loans and  Contracts," in connection with a
mortgage  loan or  contract  that is in default,  or if a default is  reasonably
foreseeable.

     In addition, the rate and timing of prepayments,  defaults and liquidations
on the  mortgage  loans or  contracts  will be affected by the general  economic
condition  of the region of the  country or the  locality  in which the  related
mortgaged  properties are located. The risk of delinquencies and loss is greater
and prepayments are less likely in regions where a weak or deteriorating economy
exists, as may be evidenced by, among other factors,  increasing unemployment or
falling property values.

     For some loans,  including adjustable rate mortgage loans, the loan rate at
origination  may be below the rate  that  would  result if the index and  margin
relating  to those  loans were  applied  at  origination.  Under the  applicable
underwriting  standards,  the borrower  under each of the loans  usually will be
qualified on the basis of the loan rate in effect at origination  which reflects
a rate significantly  lower than the maximum rate. The repayment of any loan may
thus be dependent on the ability of the borrower to make larger monthly payments
following the adjustment of the loan rate. In addition, the periodic increase in
the amount paid by the  borrower of a Buy-Down  Loan during or at the end of the
applicable  buy-down  period  may  create a  greater  financial  burden  for the
borrower,  who might  not have  otherwise  qualified  for a  mortgage  under the
applicable  underwriting  guidelines,  and may accordingly  increase the risk of
default for the related loan.

     For any loans  secured by junior liens on the related  mortgaged  property,
the inability of the borrower to pay off the balance  thereof may be affected by
the ability of the borrower to obtain  refinancing  of any related  senior loan,
thereby preventing a potential improvement in the borrower's circumstances.

     The holder of a loan  secured  by a junior  lien on the  related  mortgaged
property  will be  subject to a loss of its  mortgage  if the holder of a senior
mortgage is successful in foreclosure  of its mortgage and its claim,  including
any related  foreclosure  costs,  is not paid in full,  since no junior liens or
encumbrances survive such a foreclosure. Also, due to the priority of the senior
mortgage, the holder of a loan secured by a junior lien on the related


                                       18
<PAGE>

mortgaged property may not be able to control the timing, method or procedure of
any foreclosure action relating to the mortgaged  property.  Investors should be
aware  that  any  liquidation,  insurance  or  condemnation  proceeds  receiving
relating to any loans secured by junior liens on the related mortgaged  property
will be available to satisfy the  outstanding  balance of such loans only to the
extent  that the  claims  of the  holders  of the  senior  mortgages  have  been
satisfied in full, including any related foreclosure costs. For loans secured by
junior  liens that have low  balances  relative  to the  amount  secured by more
senior  mortgages,   foreclosure  costs  may  be  substantial  relative  to  the
outstanding  balance  of the loan,  and the amount of any  liquidation  proceeds
available  to  certificateholders   may  be  smaller  as  a  percentage  of  the
outstanding  balance  of the  loan  than  would  be the  case  for a first  lien
residential loan. In addition,  the holder of a loan secured by a junior lien on
the related  mortgaged  property may only foreclose on the property securing the
related  loan  subject to any senior  mortgages,  in which case the holder  must
either  pay  the  entire  amount  due  on the  senior  mortgages  to the  senior
mortgagees at or prior to the  foreclosure  sale or undertake the  obligation to
make payments on the senior mortgages.

     Similarly, a borrower of a Balloon Loan will be required to pay the Balloon
Amount  at   maturity.   Those  loans  pose  a  greater  risk  of  default  than
fully-amortizing   loans,   because  the  borrower's  ability  to  make  such  a
substantial  payment at  maturity  will in most cases  depend on the  borrower's
ability to obtain  refinancing  or to sell the mortgaged  property  prior to the
maturity of the loan. The ability to obtain  refinancing will depend on a number
of factors  prevailing at the time  refinancing or sale is required,  including,
without  limitation,   the  borrower's  personal  economic  circumstances,   the
borrower's  equity  in the  related  mortgaged  property,  real  estate  values,
prevailing  market interest rates,  tax laws and national and regional  economic
conditions.  None of the the depositor,  any seller,  or any of their affiliates
will be obligated to refinance or  repurchase  any loan or to sell any mortgaged
property,  unless that  obligation is specified in the  accompanying  prospectus
supplement.

     The loans  rates on  adjustable  rate  mortgage  loans that are  subject to
negative amortization  typically adjust monthly and their amortization schedules
adjust less frequently.  Because initial loan rates are typically lower than the
sum of the indices  applicable at origination and the related margins,  during a
period of rising interest rates as well as immediately  after  origination,  the
amount of interest  accruing on the principal  balance of those loans may exceed
the  amount of the  scheduled  monthly  payment.  As a result,  a portion of the
accrued  interest on negatively  amortizing  loans may become deferred  interest
which will be added to their  principal  balance  and will bear  interest at the
applicable loan rate.

     If stated in the accompanying  prospectus  supplement,  a trust may contain
GPM Loans or Buy-down Loans that have monthly  payments that increase during the
first few years following origination. Borrowers in most cases will be qualified
for those loans on the basis of the initial monthly payment.  To the extent that
the related  borrower's income does not increase at the same rate as the monthly
payment,  such a loan may be more  likely to default  than a mortgage  loan with
level monthly payments.

     Manufactured  homes,  unlike  residential real estate  properties,  in most
cases  depreciate in value.  Consequently,  at any time after  origination it is
possible,  especially in the case of contracts with high loan-to-value ratios at
origination,  that the market value of a manufactured home may be lower than the
principal amount outstanding under the related contract.

     If credit enhancement for a series of securities is provided by a letter of
credit,  insurance policy or bond that is issued or guaranteed by an entity that
suffers financial difficulty,  that credit enhancement may not provide the level
of  support  that  was  anticipated  at  the  time  an  investor  purchased  its
certificate.  In the event of a default  under the terms of a letter of  credit,
insurance  policy or bond,  any Realized  Losses on the loans not covered by the
credit  enhancement  will be  applied  to a series of  securities  in the manner
described in the accompanying prospectus supplement and may reduce an investor's
anticipated yield to maturity.

     The  accompanying   prospectus  supplement  may  set  forth  other  factors
concerning  the loans  securing a series of  securities or the structure of that
series that will affect the yield on the securities.

     No assurance can be given that the value of the mortgaged property securing
a loan  has  remained  or will  remain  at the  level  existing  on the  date of
origination.  If the residential real estate market should experience an overall
decline in property values such that the  outstanding  balances of the loans and
any secondary financing on the mortgaged  properties in a particular pool become
equal to or greater than the value of the mortgaged properties, the

                                       19
<PAGE>

actual  rates of  delinquencies,  foreclosures  and losses  could be higher than
those now generally experienced in the mortgage lending industry.

     Generally,  when a full  prepayment is made on a mortgage loan or contract,
the  mortgagor  under the  mortgage  loan or the obligor  under a  contract,  is
charged  interest for the number of days  actually  elapsed from the due date of
the  preceding  monthly  payment up to the date of such  prepayment,  at a daily
interest rate  determined by dividing the mortgage rate or contract rate by 365.
Full  prepayments  will  reduce  the  amount  of  interest  paid by the  related
mortgagor or obligor  because  interest on the principal  amount of any mortgage
loan or contract so prepaid will be paid only to the date of prepayment  instead
of for a full  month;  however,  unless  otherwise  provided  in the  applicable
prospectus supplement, the servicer with respect to a series will be required to
pay from its own funds the portion of any interest at the related  mortgage rate
or  contract  rate,  in each case less the  servicing  fee rate,  that is not so
received.  Partial  prepayments  generally  are  applied on the first day of the
month following receipt, with no resulting reduction in interest payable for the
period in which the partial prepayment is made.  Accordingly,  to the extent not
covered by the  servicer,  prepayments  will reduce the yield to maturity of the
certificates. See "Maturity and Prepayment Considerations" in this prospectus.

                     Maturity and Prepayment Considerations

     As indicated in this prospectus  under "The Trust Fund," the original terms
to  maturity of the loans in a given  trust will vary  depending  on the type of
loans  included  in that  trust.  The  prospectus  supplement  for a  series  of
securities  will contain  information  regarding the types and maturities of the
loans in the related trust.  The prepayment  experience,  the timing and rate of
repurchases and the timing and amount of liquidations for the related loans will
affect  the  weighted  average  life  of and  yield  on the  related  series  of
securities.

     Prepayments  on  loans  are  commonly  measured  relative  to a  prepayment
standard or model.  The prospectus  supplement for each series of securities may
describe  one or more  prepayment  standards  or models and may  contain  tables
setting  forth the  projected  yields to maturity on each class of securities or
the weighted  average life of each class of securities and the percentage of the
original  principal amount of each class of securities of that series that would
be outstanding on the specified  distribution  dates for the series based on the
assumptions  stated  in  the  accompanying   prospectus  supplement,   including
assumptions  that  prepayments on the loans are made at rates  corresponding  to
various  percentages of the prepayment  standard or model. There is no assurance
that  prepayment of the loans  underlying a series of securities will conform to
any level of the  prepayment  standard or model  specified  in the  accompanying
prospectus supplement.

     The following is a list of factors that may affect prepayment experience:

o    homeowner mobility;

o    economic conditions;

o    changes in borrowers' housing needs;

o    job transfers;

o    unemployment;

o    borrowers' equity in the properties securing the mortgages;

o    servicing decisions;

o    enforceability of due-on-sale clauses;

o    mortgage market interest rates;

o    mortgage recording taxes;

o    solicitations and the availability of mortgage funds; and

o    the obtaining of secondary financing by the borrower.

                                       20
<PAGE>

     All  statistics  known  to  the  depositor  that  have  been  compiled  for
prepayment  experience  on loans  indicate  that  while  some  loans may  remain
outstanding  until their stated  maturities,  a substantial  number will be paid
significantly  earlier  than their  respective  stated  maturities.  The rate of
prepayment for  conventional  fixed-rate  loans has fluctuated  significantly in
recent  years.  In  general,   however,   if  prevailing   interest  rates  fall
significantly  below  the  loan  rates  on the  loans  underlying  a  series  of
securities,  the  prepayment  rate of those loans is likely to be  significantly
higher  than if  prevailing  rates  remain at or above the rates  borne by those
loans. Conversely,  when prevailing interest rates increase,  borrowers are less
likely to prepay their loans.

     Some mortgage loans may only be prepaid by the borrowers  during  specified
periods upon the payment of a prepayment fee or penalty.  The requirement to pay
a prepayment fee or penalty may discourage  some borrowers from prepaying  their
mortgage loans or contracts. The servicer or subservicer will be entitled to all
prepayment  charges  and late  payment  charges  received on the loans and those
amounts  will not be  available  for  payment on the  securities,  except to the
extent specified in the related  prospectus  supplement.  However,  some states'
laws restrict the imposition of prepayment  charges even when the mortgage loans
or contracts expressly provide for the collection of those charges. As a result,
it is possible  that  prepayment  charges may not be collected  even on mortgage
loans or contracts that provide for the payment of these charges.

     The  addition  of any  deferred  interest to the  principal  balance of any
related  class of  securities  will  lengthen the weighted  average life of that
class  of  securities  and may  adversely  affect  yield  to  holders  of  those
securities.

     Mortgage loans and contracts with fixed interest rates,  except in the case
of FHA and VA  Loans,  generally  contain  due-on-sale  clauses  permitting  the
mortgagee or obligee to accelerate the maturity  thereof upon  conveyance of the
mortgaged property.  In most cases, the servicer may permit proposed assumptions
of mortgage loans and contracts where the proposed buyer meets the  underwriting
standards  applicable to that mortgage loan or contract.  This assumption  would
have the effect of extending  the average life of the mortgage loan or contract.
FHA Loans and VA Loans are not permitted to contain "due on sale"  clauses,  and
are freely assumable.

     An adjustable rate mortgage loan is assumable,  in some  circumstances,  if
the  proposed  transferee  of the related  mortgaged  property  establishes  its
ability to repay the loan and, in the reasonable  judgment of the servicer,  the
security  for the  adjustable  rate  mortgage  loan would not be impaired by the
assumption.  The extent to which  adjustable  rate mortgage loans are assumed by
purchasers  of the  mortgaged  properties  rather  than  prepaid by the  related
borrowers in connection  with the sales of the mortgaged  properties will affect
the weighted average life of the related series of securities.  See "Description
of the  Certificates--Servicing of Mortgage Loans and Contracts," "--Enforcement
of  "Due-on-Sale"  Clauses;  Realization  Upon  Defaulted  Mortgage  Loans," and
"Certain  Legal Aspects of the Mortgage Loans and  Contracts--Enforceability  of
Certain  Provisions" for a description of provisions of each agreement and legal
developments that may affect the prepayment rate of loans.

     The terms of the  pooling  and  servicing  agreement  related to a specific
series  generally will require the related  subservicer,  special  servicer,  if
applicable,  or 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  or  Cooperative  Dwelling;   provided,  however,  that  any
enforcement  action that would impair or threaten to impair any  recovery  under
any related insurance policy will not be required or permitted. See "Description
of the  Certificates--Enforcement  of  "Due-On-Sale"  Clauses;  Realization Upon
Defaulted  Mortgage  Loans" and "Certain Legal Aspects of the Mortgage Loans and
Contracts--The  Mortgage Loans" for a description of certain  provisions of each
pooling and servicing  agreement and certain legal  developments that may affect
the prepayment experience on the related mortgage loans.

     At  the  request  of  the  related  mortgagors,  the  related  servicer  or
subservicer,  as  applicable,  may refinance the mortgage  loans in any mortgage
pool by  accepting  prepayments  on those  mortgage  loans and  making new loans
secured by a mortgage on the same property. Upon any refinancing,  the new loans
will not be included in the related  mortgage  pool and the related  servicer or
subservicer, as applicable, will be required to repurchase the affected mortgage
loan.  A mortgagor  may be legally  entitled to require the related  servicer or
subservicer,  as  applicable,  to  allow  a  refinancing.  Any  repurchase  of a
refinanced  mortgage  loan will have the same effect as a prepayment  in full of
the related mortgage loan.


                                       21
<PAGE>

     For any index used in  determining  the rate of interest  applicable to any
series  of  securities  or  loan  rates  of the  underlying  mortgage  loans  or
contracts,  there are a number of factors  that affect the  performance  of that
index and may cause that index to move in a manner different from other indices.
If an index  applicable to a series  responds to changes in the general level of
interest rates less quickly than other indices,  in a period of rising  interest
rates, increases in the yield to certificateholders due to those rising interest
rates may occur later than that which would be produced by other indices, and in
a period of  declining  rates,  that index may remain  higher than other  market
interest  rates which may result in a higher level of  prepayments of the loans,
which adjust in accordance with that index,  than of mortgage loans or contracts
which adjust in accordance with other indices.

     Mortgage  loans made with  respect to  commercial  properties,  multifamily
properties and Mixed-Use Properties may have provisions that prohibit prepayment
entirely  or for  certain  periods  and/or  require  payment of premium or yield
maintenance  penalties,  and may provide for payments of interest  only during a
certain period  followed by amortization of principal on the basis of a schedule
extending beyond the maturity of the related mortgage loan.  Prepayments of such
mortgage loans may be affected by these and other factors,  including changes in
interest  rates and the  relative  tax  benefits  associated  with  ownership of
commercial property, multifamily property and Mixed-Use Property.

     If stated in the prospectus  supplement  relating to a specific series, the
depositor  or other  specified  entity  will have the option to  repurchase  the
assets  included in the related  trust fund under the  conditions  stated in the
related  prospectus  supplement.  For any  series  of  securities  for which the
depositor  has  elected  to  treat  the  trust  fund as a  REMIC,  any  optional
repurchase of assets will be effected in  compliance  with the  requirements  of
Section  860F(a)(4) of the Code so as to  constitute a "qualifying  liquidation"
thereunder.  In  addition,  the  depositor  will  be  obligated,  under  certain
circumstances,  to  repurchase  certain  assets of the related  trust fund.  The
sellers will also have certain repurchase  obligations,  as more fully described
in  this  prospectus.  In  addition,  the  mortgage  loans  underlying  Mortgage
Certificates may be subject to repurchase under  circumstances  similar to those
described  above.   Repurchases  of  the  mortgage  loans  underlying   Mortgage
Certificates  will have the same effect as  prepayments  in full. See "The Trust
Fund--Mortgage   Loan    Program--Representations   by   Unaffiliated   Sellers;
Repurchases," "Description of the  Certificates--Assignment  of Mortgage Loans,"
"--Assignment  of  Mortgage  Certificates,"   "--Assignment  of  Contracts"  and
"--Termination."

                         Description of the Certificates

     Each  series  of  securities  will  be  issued  pursuant  to  an  agreement
consisting of either:

o    a pooling and servicing agreement; or

o    a trust agreement.

A pooling and servicing agreement will be an agreement among the depositor,  the
servicer, if any, and the trustee named in the applicable prospectus supplement.
A trust  agreement  will be an agreement  between the depositor and the trustee.
Forms of the pooling and servicing  agreement and the trust  agreement have been
filed as exhibits to the  Registration  Statement of which this  prospectus is a
part. The following  summaries describe all material terms of the securities and
the pooling and servicing  agreements or trust  agreement that are not described
in the  related  prospectus  supplement.  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  or trust
agreement for the applicable series and the related prospectus supplement.

General

     The trust fund with respect to a series will consist of:

o    the mortgage loans, contracts,  and Mortgage Certificates and distributions
     thereon as from time to time are subject to the applicable  related pooling
     and servicing agreement;

o    the assets as from time to time  identified  as  deposited  in the  related
     Certificate Account;

o    the related  property  acquired by foreclosure of mortgage loans or deed in
     lieu of foreclosure, or manufactured homes acquired by repossession;

                                       22
<PAGE>


o    the surety  bond or  financial  guaranty  insurance  policy,  if any,  with
     respect to that series;

o    the letter of credit, if any, with respect to that series;

o    the pool insurance policy,  if any, with respect to that series,  described
     below under "Description of Insurance",

o    the special hazard insurance  policy,  if any, with respect to that series,
     described below under "Description of Insurance";

o    the mortgagor bankruptcy bond and proceeds thereof, if any, with respect to
     that series, as described below under "Description of Insurance";

o    the  performance  bond and proceeds  thereof,  if any, with respect to that
     series;

o    the primary  mortgage  insurance  policies,  if any,  with  respect to that
     series, as described below under "Description of Insurance"; and

o    the GPM Funds and Buy-Down Funds, if any, with respect to that series;  or,
     in lieu of some or all of the foregoing,  the Alternative Credit Support as
     shall be described in the applicable prospectus supplement.

     Upon  the  original  issuance  of  a  series  of  securities,  certificates
representing the minimum undivided interest or beneficial  ownership interest in
the related trust fund or the minimum  notional  amount  allocable to each class
will  evidence  the  undivided  interest,   beneficial   ownership  interest  or
percentage ownership interest specified in the related prospectus supplement.

     If stated in the related prospectus supplement, one or more subservicers or
the depositor may directly  perform some or all of the duties of a servicer with
respect to a series.

     If stated in the prospectus supplement for a series, ownership of the trust
fund for that series may be evidenced  by one or more  classes of  certificates.
Distributions  of principal  and interest  with respect to those  classes may be
made on a sequential or concurrent basis, as specified in the related prospectus
supplement.

     The Residual Certificates,  if any, included in a series will be designated
by the depositor as the "residual interest" in the related REMIC for purposes of
Section  860G(a)(2)  of the  Code,  and will  represent  the  right  to  receive
distributions as specified in the prospectus  supplement for the related series.
All other classes of securities of the related series will  constitute  "regular
interests"  in the  related  REMIC,  as  defined  in the Code.  If stated in the
related prospectus  supplement,  the Residual Certificates may be offered hereby
and by means of the  related  prospectus  supplement.  See  "Federal  Income Tax
Consequences" in this prospectus.

     If stated in the  prospectus  supplement  for a series,  each  asset in the
related  trust fund will be assigned an initial  asset  value.  If stated in the
related  prospectus  supplement,  the asset  value of each asset in the  related
trust fund will be the Certificate Principal Balance of each class or classes of
certificates  of that  series  that,  based  upon  certain  assumptions,  can be
supported  by  distributions  on the Trust  Assets  allocable  to that  class or
subclass,  together with reinvestment income thereon, to the extent specified in
the related prospectus supplement.  The method of determining the asset value of
the  assets in the trust  fund for a series  will be  specified  in the  related
prospectus supplement.

     If stated in the prospectus supplement with respect to a series,  ownership
of the trust fund for that  series may be  evidenced  by one or more  classes or
subclasses of securities  that are senior  securities and one or more classes or
subclasses of securities that are subordinated securities, each representing the
undivided  interests  in the trust  fund  specified  in the  related  prospectus
supplement. If stated in the related prospectus supplement,  one or more classes
or subclasses of subordinated  securities of a series may be subordinated to the
right of the holders of securities of one or more other classes or subclasses of
subordinated securities within that series to receive distributions with respect
to the mortgage  loans or contracts in the related trust fund, in the manner and
to the extent specified in the related prospectus  supplement.  If stated in the
related prospectus  supplement,  the holders of the senior  certificates of that
series  may have the  right to  receive a greater  than pro rata  percentage  of
prepayments of


                                       23
<PAGE>

principal on the related mortgage loans,  contracts or mortgage loans underlying
the  related  Mortgage  Certificates  in the manner and under the  circumstances
described in the related prospectus supplement.

     If stated in the related  prospectus  supplement,  the  depositor  may sell
certain classes or subclasses of the certificates of a series,  including one or
more  classes  or   subclasses   of   subordinated   certificates   or  Residual
Certificates,  in privately  negotiated  transactions  exempt from  registration
under the Securities Act of 1933, as amended.  Certificates sold in one of these
privately  negotiated exempt  transactions will be transferable only pursuant to
an  effective  registration  statement  or an  applicable  exemption  under  the
Securities Act of 1933, as amended,  and pursuant to any  applicable  state law.
Alternatively, if stated in the related prospectus supplement, the depositor may
offer one or more classes or  subclasses  of the  subordinated  certificates  or
Residual  Certificates  of a series by means of this  prospectus and the related
prospectus supplement.  The certificates of a series offered hereby and by means
of the related  prospectus  supplements will be transferable and exchangeable at
the office or agency maintained by the trustee for the purposes set forth in the
related prospectus  supplement.  No service charge will be made for any transfer
or exchange  of  certificates,  but the  trustee  may  require  payment of a sum
sufficient to cover any tax or other governmental  charge in connection with any
transfer or exchange.

Form of Certificates

     As specified in the  applicable  prospectus  supplement,  the securities of
each series will be issued either as physical  securities or in book-entry form.
If issued as physical  securities,  the securities  will be in fully  registered
form  only  in  the  denominations  specified  in  the  accompanying  prospectus
supplement,  and will be  transferable  and  exchangeable at the corporate trust
office of the  certificate  registrar  appointed  under the related  pooling and
servicing agreement or trust agreement to register the certificates.  No service
charge will be made for any  registration of exchange or transfer of securities,
but the  trustee  may require  payment of a sum  sufficient  to cover any tax or
other governmental  charge. The term  certificateholder  or holder refers to the
entity whose name  appears on the records of the  certificate  registrar  or, if
applicable,  a transfer  agent,  as the  registered  holder of the  certificate,
except as otherwise indicated in the accompanying prospectus supplement.

     If issued in book-entry form, the classes of a series of securities will be
initially  issued  through the  book-entry  facilities of The  Depository  Trust
Company,  or DTC, or Clearstream  Banking,  societe  anonyme,  formerly known as
Cedelbank,  SA, or Clearstream,  or the Euroclear System in Europe,  if they are
participants of those systems,  or indirectly  through  organizations  which are
participants  in those systems,  or through any other  depository or facility as
may be specified in the accompanying  prospectus supplement.  As to any class of
book-entry  securities so issued,  the record holder of those securities will be
DTC's nominee.  Clearstream and Euroclear System will hold omnibus  positions on
behalf  of  their  participants   through  customers'   securities  accounts  in
Clearstream's  and  Euroclear  System's  names on the books of their  respective
depositaries,  which in turn will hold those positions in customers'  securities
accounts  in  the   depositaries'   names  on  the  books  of  DTC.   DTC  is  a
limited-purpose trust company organized under the laws of the State of New York,
which  holds  securities  for its DTC  participants,  which  include  securities
brokers and dealers,  banks,  trust  companies  and clearing  corporations.  DTC
together with the Clearstream and Euroclear System  participating  organizations
facilitates  the clearance and  settlement  of securities  transactions  between
participants   through   electronic   book-entry  changes  in  the  accounts  of
participants.   Other  institutions  that  are  not  participants  but  indirect
participants  which  clear  through or maintain a  custodial  relationship  with
participants have indirect access to DTC's clearance system.

     Unless otherwise specified in the accompanying  prospectus  supplement,  no
beneficial  owner in an interest in any book-entry  certificate will be entitled
to receive a certificate representing that interest in registered,  certificated
form, unless either (i) DTC ceases to act as depository for that certificate and
a successor depository is not obtained, or (ii) the depositor elects in its sole
discretion to discontinue the registration of the securities  through DTC. Prior
to any such event,  beneficial owners will not be recognized by the trustee, the
servicer or the subservicer as holders of the related securities for purposes of
the related  agreement,  and  beneficial  owners will be able to exercise  their
rights as owners of their securities only indirectly  through DTC,  participants
and indirect participants.  Any beneficial owner that desires to purchase,  sell
or  otherwise  transfer  any interest in  book-entry  securities  may do so only
through  DTC,  either  directly  if the  beneficial  owner is a  participant  or
indirectly through participants and, if applicable, indirect participants. Under
the procedures of DTC,  transfers of the beneficial  ownership of any book-entry
securities will be required to be made in minimum denominations specified in the
accompanying prospectus supplement.  The ability of a beneficial owner to pledge
book-entry securities to persons or entities that are not


                                       24
<PAGE>

participants  in the  DTC  system,  or to  otherwise  act  with  respect  to the
securities,  may  be  limited  because  of the  lack  of  physical  certificates
evidencing   the   securities  and  because  DTC  may  act  only  on  behalf  of
participants.

     Because of time zone differences,  the securities  account of a Clearstream
or  Euroclear  System  participant  as a  result  of a  transaction  with  a DTC
participant,  other  than a  depositary  holding  on  behalf of  Clearstream  or
Euroclear  System,  will be credited during a subsequent  securities  settlement
processing  day,  which  must be a business  day for  Clearstream  or  Euroclear
System,  as the case may be,  immediately  following  the DTC  settlement  date.
Credits or any transactions in those  securities  settled during this processing
will be reported to the relevant  Euroclear  System  participant  or Clearstream
participants  on that business day.  Cash received in  Clearstream  or Euroclear
System  as a  result  of  sales  of  securities  by  or  through  a  Clearstream
participant or Euroclear System participant to a DTC participant, other than the
depositary for Clearstream or Euroclear  System,  will be received with value on
the DTC settlement  date,  but will be available in the relevant  Clearstream or
Euroclear  System cash account only as of the business day following  settlement
in DTC.

     Transfers  between  participants  will occur in accordance  with DTC rules.
Transfers  between  Clearstream  participants and Euroclear System  participants
will occur in accordance with their respective rules and operating procedures.

     Cross-market  transfers  between  persons  holding  directly or  indirectly
through DTC, on the one hand,  and directly or  indirectly  through  Clearstream
participants or Euroclear System participants, on the other, will be effected in
DTC  in  accordance   with  DTC  rules  on  behalf  of  the  relevant   European
international clearing system by the relevant  depositaries;  however, the cross
market  transactions  will  require  delivery of  instructions  to the  relevant
European  international  clearing  system by the  counterparty in that system in
accordance  with its rules and procedures and within its  established  deadlines
defined  with respect to European  time.  The  relevant  European  international
clearing  system will, if the  transaction  meets its  settlement  requirements,
deliver instructions to its depositary to take action to effect final settlement
on its  behalf by  delivering  or  receiving  securities  in DTC,  and making or
receiving  payment  in  accordance  with  normal  procedures  for same day funds
settlement  applicable to DTC.  Clearstream  participants  and Euroclear  System
participants may not deliver instructions directly to the depositaries.

     Clearstream,  as  a  professional  depository,  holds  securities  for  its
participating  organizations  and  facilitates  the clearance and  settlement of
securities  transactions  between  Clearstream  participants  through electronic
book-entry changes in accounts of Clearstream participants,  thereby eliminating
the need for physical  movement of  securities.  As a  professional  depository,
Clearstream is subject to regulation by the Luxembourg Monetary Institute.

     Euroclear  System  was  created  to hold  securities  for  participants  of
Euroclear System and to clear and settle  transactions  between Euroclear System
participants  through  simultaneous   electronic   book-entry  delivery  against
payment,  thereby  eliminating the need for physical  movement of securities and
any risk from lack of simultaneous  transfers of securities and cash.  Euroclear
System operator is the Brussels, Belgium office of Morgan Guaranty Trust Company
of New York,  under contract with the clearance  cooperative,  Euroclear  System
Clearance Systems S.C., a Belgian co-operative  corporation.  All operations are
conducted by the Euroclear System operator,  and all Euroclear System securities
clearance  accounts and  Euroclear  System cash  accounts are accounts  with the
Euroclear System operator, not the clearance cooperative.

     The clearance cooperative establishes policy for Euroclear System on behalf
of Euroclear System  participants.  The Euroclear System operator is the Belgian
branch of a New York banking  corporation  which is a member bank of the Federal
Reserve  System.  As a result,  it is  regulated  and  examined  by the Board of
Governors  of the  Federal  Reserve  System  and  the  New  York  State  Banking
Department,  as well as the Belgian  Banking  Commission.  Securities  clearance
accounts and cash accounts with the  Euroclear  System  operator are governed by
the terms and  conditions  Governing  Use of  Euroclear  System and the  related
operating  procedures of the Euroclear  System and  applicable  Belgian law. The
terms and conditions  govern  transfers of securities and cash within  Euroclear
System,  withdrawals of securities and cash from Euroclear System,  and receipts
of payments for  securities  in Euroclear  System.  All  securities in Euroclear
System are held on a fungible basis without  attribution of specific  securities
to specific securities clearance accounts.

                                       25
<PAGE>

     Distributions on the book-entry securities will be forwarded by the trustee
to  DTC,  and  DTC  will  be  responsible  for  forwarding   those  payments  to
participants,  each of which will be responsible  for disbursing the payments to
the beneficial owners it represents or, if applicable, to indirect participants.
Accordingly,  beneficial owners may experience delays in the receipt of payments
relating to their  securities.  Under DTC's  procedures,  DTC will take  actions
permitted to be taken by holders of any class of book-entry securities under the
related  agreement  only at the direction of one or more  participants  to whose
account the  book-entry  securities  are credited and whose  aggregate  holdings
represent  no less than any minimum  amount of  percentage  interests  or voting
rights required  therefor.  DTC may take  conflicting  actions for any action of
certificateholders of any class to the extent that participants  authorize those
actions. None of the servicer,  the subservicer,  the depositor,  the trustee or
any of their respective affiliates will have any liability for any aspect of the
records  relating  to or  payments  made  on  account  of  beneficial  ownership
interests in the  book-entry  securities,  or for  maintaining,  supervising  or
reviewing any records relating to those beneficial ownership interests.

Distributions of Principal and Interest

     Beginning  on the date  specified  in the  related  prospectus  supplement,
distributions  of principal and interest on the certificates of a series will be
made by the servicer or trustee, if stated in the related prospectus supplement,
on each  distribution  date to  persons  in  whose  name  the  certificates  are
registered  at the  close  of  business  on the  day  specified  in the  related
prospectus  supplement.  Distributions  of interest  will be  calculated  in the
manner and at the per annum rate specified in the related prospectus supplement,
which  rate may be fixed  or  variable.  Interest  on the  certificates  will be
calculated on the basis of a 360-day year consisting of twelve 30-day months, or
such  other  method  as  specified   in  the  related   prospectus   supplement.
Distributions of principal on the certificates  will be made in the priority and
manner and in the amounts specified in the related prospectus supplement.

     On each distribution  date, the trustee will distribute to each holder of a
certificate for each class or subclass an amount equal to:

o    the product of the Percentage  Interest  evidenced by that  certificate and
     the  interest of the  related  class or  subclass  in the  distribution  of
     principal and the distribution of interest; or

o    some other amount as described in the related prospectus supplement.

A  certificate  of a class  or  subclass  may  represent  a right to  receive  a
percentage  of both  the  distribution  of  principal  and the  distribution  of
interest  or a  percentage  of  either  the  distribution  of  principal  or the
distribution of interest, as specified in the related prospectus supplement.  If
stated in the related prospectus supplement, a class or subclass of certificates
may be entitled to interest only or principal only.

     If stated in the related prospectus  supplement,  the holders of the senior
certificates  may have the  right to  receive a  percentage  of  prepayments  of
principal on the related  mortgage  loans or contracts  that is greater than the
percentage of regularly  scheduled  payment of principal that holder is entitled
to receive.  These percentages may vary from time to time,  subject to the terms
and conditions specified in the prospectus supplement.

     Distributions of interest on certain classes or subclasses of certificates,
known as Compound Interest Certificates,  will be made only after the occurrence
of certain events specified in the related prospectus  supplement.  Prior to the
time  distributions  of  interest  are made on those  certificates,  accrued and
unpaid  interest,   or  Accrual  Distribution  Amount,  will  be  added  to  the
Certificate  Principal  Balance of those  certificates on each distribution date
and will accrue  interest  until paid as  described  in the  related  prospectus
supplement.  If  stated  in  the  related  prospectus  supplement,  the  Accrual
Distribution  Amount  will be payable  as  principal  to one or more  classes or
subclasses of certificates.

     Distributions  in  reduction  of  the  Certificate   Principal  Balance  of
certificates of a series will be made on each  distribution date for the related
series to the holders of the certificates of the class or subclass then entitled
to  receive  distributions  until the  aggregate  amount of  distributions  have
reduced  the  Certificate   Principal  Balance  of  the  certificates  to  zero.
Allocation of distributions in reduction of Certificate  Principal  Balance will
be made to each  class or  subclass  of  certificates  in the order and  amounts
specified in the related prospectus supplement,  which, if stated in the related
prospectus supplement, may be concurrently.

                                       26
<PAGE>

     The Certificate  Principal Balance of a certificate of a series at any time
represents the maximum  specified  dollar  amount,  exclusive of interest at the
related  Pass-Through  Rate,  to which the holder  thereof is entitled  from the
assets in the trust fund for the related series,  and will decline to the extent
distributions in reduction of Certificate Principal Balance are received by, and
losses  on  the   mortgage   loans  or   contracts   are   allocated   to,   the
certificateholder.  The initial  Certificate  Principal Balance of each class or
subclass within a series that has been assigned a Certificate  Principal Balance
will be specified in the related prospectus supplement.

     Distributions,  other  than the final  distribution  in  retirement  of the
certificates, will be made by check mailed to the address of the person entitled
thereto as it appears on the certificate register for the related series, except
that,  with  respect to any holder of a  certificate  meeting  the  requirements
specified in the applicable prospectus  supplement,  distributions shall be made
by wire transfer in immediately available funds, provided that the trustee shall
have been  furnished  with  appropriate  wiring  instructions  not less than two
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  designated  by the  trustee  or the
servicer for that  purpose,  as specified  in the final  distribution  notice to
certificateholders.

Assignment of Mortgage Loans

     The depositor will cause the mortgage loans constituting a mortgage pool to
be assigned to the trustee, together with all principal and interest received on
or with  respect  to those  mortgage  loans  after  the  Cut-off  Date,  but not
including  principal and interest due on or before the Cut-off Date. The trustee
will,   concurrently  with  the  assignment  of  mortgage  loans,   deliver  the
certificates to the depositor in exchange for the mortgage loans.  Each mortgage
loan will be  identified  in a schedule  appearing  as an exhibit to the related
pooling and servicing agreement. The schedule will include information as to the
adjusted principal balance of each mortgage loan as of the Cut-off Date, as well
as information respecting the mortgage rate, the currently scheduled monthly, or
other  periodic,  payment of principal  and  interest,  the maturity date of the
Mortgage Note and the loan-to-value ratio of the mortgage loan at origination.

     If stated in the accompanying prospectus supplement, and in accordance with
the  rules  of  membership  of  MERSCORP,   Inc.  and/or   Mortgage   Electronic
Registration Systems,  Inc. or, MERS(R),  assignments of mortgages for any trust
asset in the related trust will be registered  electronically  through  Mortgage
Electronic  Registration  Systems,  Inc.,  or MERS(R)  System.  For trust assets
registered  through the MERS(R)  System,  MERS(R)  shall serve as  mortgagee  of
record  solely  as a  nominee  in an  administrative  capacity  on behalf of the
trustee and shall not have any interest in any of those trust assets.

     In addition,  in most cases the  depositor  will,  as to each mortgage loan
that is not a Cooperative Loan, deliver or cause to be delivered to the trustee,
or to the custodian  hereinafter  referred to, the Mortgage Note endorsed to the
order of the  trustee or in blank,  the  mortgage  with  evidence  of  recording
indicated thereon and, except in the case of a mortgage registered with MERS(R),
an assignment of the mortgage in recordable  form.  With respect to any mortgage
not returned from the public recording office, the depositor will deliver a copy
of the mortgage  together with its certificate  stating that the original of the
mortgage was delivered to the recording  office.  In most cases,  assignments of
the  mortgage  loans to the trustee will be recorded in the  appropriate  public
office for real  property  records,  except in states  where,  in the opinion of
counsel  acceptable  to the trustee,  a 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 depositor or the originator of
the mortgage  loan.  In other cases,  the Mortgage  Notes and  mortgages  may be
retained by sellers  unaffiliated  with the depositor or the servicer  under the
circumstances   described  in  the  related  prospectus   supplement,   and  the
assignments of mortgage into the name of the trustee will only be recorded under
the circumstances  described in the related prospectus supplement.  In addition,
with respect to any commercial  mortgage loans,  multifamily  mortgage loans and
Mixed-Use Mortgage Loans, the depositor will deliver or cause to be delivered to
the trustee, or the custodian hereinafter referred to, the assignment of leases,
rents and profits, if separate from the mortgage,  and an executed re-assignment
of assignment of leases, rents and profits.

     The depositor  will cause to be delivered to the trustee,  its agent,  or a
custodian,  with respect to any Cooperative  Loan, the related original security
agreement,  the  proprietary  lease  or  occupancy  agreement,  the  recognition
agreement,  an executed  financing  statement and the relevant stock certificate
and related blank stock

                                       27
<PAGE>

powers. The servicer will file in the appropriate  office a financing  statement
evidencing the trustee's security interest in each Cooperative Loan.

     The  trustee  or a  custodian  on  behalf  of the  trustee  will,  within a
specified  number of days  after  receipt  thereof,  review  the  mortgage  loan
documents.  If the seller or another entity specified in the related  prospectus
supplement  cannot cure any  material  omission or defect in the  mortgage  loan
documents within the time period specified in the related prospectus supplement,
the seller or other entity will be obligated to either  substitute  the affected
mortgage  loan for a substitute  mortgage loan or loans,  or to  repurchase  the
related  mortgage loan from the trustee within the time period  specified in the
related prospectus  supplement at a price equal to the principal balance thereof
as of the date of  purchase  or, in the case of a series as to which an election
has been made to treat the related trust fund as a REMIC, at some other price as
may be  necessary to avoid a tax on a  prohibited  transaction,  as described in
Section 860F(a) of the Code, in each case together with accrued  interest at the
applicable mortgage rate to the first day of the month following the repurchase,
plus the amount of any unreimbursed  Advances made by the servicer in respect of
the related  mortgage  loan. The servicer is obligated to enforce the repurchase
obligation  of the  seller,  to the  extent  described  above  under  "The Trust
Fund--Representations  by  Unaffiliated  Sellers;  Repurchases."  This  purchase
obligation  constitutes the sole remedy available to the  certificateholders  or
the trustee  for a material  omission or defect in a  constituent  document.  If
stated in the related  prospectus  supplement,  mortgage loans or contracts will
not be required to be  repurchased  or  substituted  for upon the  discovery  of
certain omissions or defects in a constituent document.

     If stated in the  applicable  prospectus  supplement,  with  respect to the
mortgage  loans in a  mortgage  pool,  the  depositor  or the  seller  will make
representations and warranties as to the types and geographical  distribution of
the related  mortgage  loans and as to the accuracy in all material  respects of
certain  information  furnished to the trustee in respect of each mortgage loan.
In addition, if stated in the related prospectus supplement,  the depositor will
represent  and warrant  that,  as of the Cut-off Date for the related  series of
certificates,  no mortgage loan is more than 30 days delinquent as to payment of
principal and interest.  Upon a breach of any  representation or warranty by the
depositor or the seller that  materially  and adversely  affects the interest of
the  certificateholders,  the depositor or the seller,  as  applicable,  will be
obligated either to cure the breach in all material  respects or to purchase the
mortgage loan at the purchase price set forth in the previous paragraph. In some
cases,  the  depositor  or the  seller  may  substitute  for  mortgage  loans as
described  in  the  succeeding   paragraph.   This  repurchase  or  substitution
obligation  constitutes the sole remedy available to the  certificateholders  or
the trustee for a breach of  representation  or warranty by the depositor or the
seller.

     Within the period specified in the related prospectus supplement, following
the date of issuance of a series of certificates,  the depositor,  the servicer,
sellers unaffiliated with the depositor or the related subservicer,  as the case
may be, may deliver to the trustee substitute mortgage loans in substitution for
any one or more of the mortgage loans  initially  included in the trust fund but
which  do not  conform  in one  or  more  respects  to the  description  thereof
contained  in the related  prospectus  supplement,  or as to which a breach of a
representation or warranty is discovered,  which breach materially and adversely
affects the interests of the certificateholders. The required characteristics of
any  substitute  mortgage loan and any additional  restrictions  relating to the
substitution of mortgage loans will generally be as described in this prospectus
under "The Trust Fund-- Representations by Unaffiliated Sellers; Repurchases."

     If  stated  in  related  prospectus  supplement,   mortgage  loans  may  be
transferred to the trust fund with  documentation of defects or omissions,  such
as missing notes or mortgages or missing title insurance policies.  If stated in
the related  prospectus  supplement,  none of the seller,  the  depositor or any
other person will be required to cure those defects or repurchase those mortgage
loans if the defect or omission is not cured.

     The trustee will be  authorized,  with the consent of the depositor and the
servicer,  to appoint a custodian pursuant to a custodial  agreement to maintain
possession  of  documents  relating  to the  mortgage  loans as the agent of the
trustee.

     Pursuant to each pooling and  servicing  agreement,  the  servicer,  either
directly or through  subservicers,  or a special servicer,  if applicable,  will
service and  administer the mortgage loans assigned to the trustee as more fully
set forth  below.  The special  servicer  may also be a party to the pooling and
servicing agreement with respect to a

                                       28
<PAGE>

series of certificates,  in which case the related  prospectus  supplement shall
set forth the duties and responsibilities of the special servicer thereunder.

Assignment of Contracts

     The depositor will cause the contracts constituting the contract pool to be
assigned to the trustee,  together  with  principal  and interest due on or with
respect to the contracts after the Cut-off Date, but not including principal and
interest due on or before the Cut-off Date. If the depositor is unable to obtain
a perfected  security interest in a contract prior to transfer and assignment to
the trustee,  the related  unaffiliated  seller will be obligated to  repurchase
that contract. The trustee,  concurrently with an assignment of contracts,  will
authenticate and deliver the certificates for that series. Each contract will be
identified  in a schedule  appearing  as an exhibit to the  related  pooling and
servicing agreement.  That contract schedule will specify,  with respect to each
contract, among other things:

o    the original  principal amount and the adjusted principal balance as of the
     close of business on the Cut-off Date;

o    the annual percentage rate;

o    the current scheduled monthly level payment of principal and interest; and

o    the maturity of the contract.

     In addition, in most cases the depositor, as to each contract, will deliver
or cause to be  delivered  to the  trustee,  or,  as  specified  in the  related
prospectus  supplement,  the  custodian,  the  original  contract  and copies of
documents and instruments  related to each contract and the security interest in
the manufactured  home securing each contract.  In other cases, the contract and
other documents and instruments may be retained by sellers unaffiliated with the
depositor  or the  servicer  under the  circumstances  described  in the related
prospectus supplement.  In order to give notice of the right, title and interest
of the  certificateholders  to the  contracts,  the depositor will cause a UCC-1
financing  statement to be executed by the depositor  identifying the trustee as
the secured party and identifying all contracts as collateral.  If stated in the
related prospectus supplement, the contracts will be stamped or otherwise marked
to reflect their  assignment from the depositor to the trust fund.  However,  in
most cases the  contracts  will not be stamped  or  otherwise  marked to reflect
their  assignment  from  the  depositor  to  the  trust  fund.  Therefore,  if a
subsequent  purchaser  were able to take  physical  possession  of the contracts
without  notice  of  the  assignment  to  the  trustee,   the  interest  of  the
certificateholders  in the  contracts  could be  defeated.  See  "Certain  Legal
Aspects of Mortgage Loans and Contracts--The Contracts" in this prospectus.

     The  trustee,  or a  custodian  on behalf of the  trustee,  will review the
contract documents within the number of days specified in the related prospectus
supplement  after  receipt  thereof.  If any  contract  document  is found to be
defective in any material  respect,  the related  seller  unaffiliated  with the
depositor must cure that defect within 90 days, or within some other period that
is specified in the related prospectus  supplement.  If the defect is not cured,
the related seller will repurchase the related contract or any property acquired
in respect thereof from the trustee at a price equal to:

o    the remaining unpaid principal balance of the defective contract; or

o    in the  case of a  repossessed  manufactured  home,  the  unpaid  principal
     balance of the defective contract immediately prior to the repossession; or

o    in the case of a series as to which an election  has been made to treat the
     related  trust fund as a REMIC,  at some other price as may be necessary to
     avoid a tax on a prohibited transaction, as described in Section 860F(a) of
     the Code;

in each case together  with accrued but unpaid  interest to the first day of the
month  following  repurchase,  plus any  unreimbursed  Advances  respecting  the
defective  contract.  The  repurchase  obligation  constitutes  the sole  remedy
available to the  certificateholders  or the trustee for a material  defect in a
contract document.

                                       29
<PAGE>

     If stated in the related prospectus supplement, each seller of contracts
will have represented, among other things, that:

o    immediately  prior to the transfer and  assignment  of the  contracts,  the
     seller  unaffiliated with the depositor had good title to, and was the sole
     owner of each  contract  and  there  had been no other  sale or  assignment
     thereof;

o    as of the date of the transfer to the depositor,  the contracts are subject
     to no offsets, defenses or counterclaims;

o    each  contract at the time it was made  complied in all  material  respects
     with  applicable  state and federal  laws,  including  usury,  equal credit
     opportunity and disclosure laws;

o    as of the date of the transfer to the  depositor,  each contract is a valid
     first lien on the related  manufactured  home and the related  manufactured
     home is free of material damage and is in good repair;

o    as of the date of the transfer to the  depositor,  no contract is more than
     30 days delinquent in payment and there are no delinquent tax or assessment
     liens against the related manufactured home; and

o    with respect to each contract,  the manufactured home securing the contract
     is covered by a standard hazard  insurance policy in the amount required in
     the related  pooling and servicing  agreement and that all premiums now due
     on the insurance have been paid in full.

     All of the  representations  and  warranties  of a seller in  respect  of a
contract  will  have  been  made as of the date on which  that  seller  sold the
contract to the  depositor  or its  affiliate,  which may be a date prior to the
date of initial  issuance of the related series of  certificates.  A substantial
period of time may have elapsed between the date as of which the representations
and warranties  were made and the later date of initial  issuance of the related
series of certificates.  Since the representations and warranties referred to in
the preceding paragraph are the only representations and warranties that will be
made by a seller, the seller's  repurchase  obligation  described below will not
arise if, during the period  commencing on the date of sale of a contract by the
seller to the depositor or its  affiliate,  the relevant event occurs that would
have given rise to the  repurchase  obligation  had the event  occurred prior to
sale of the affected contract.

     If a seller cannot cure a breach of any  representation or warranty made by
it in respect of a contract that  materially and adversely  affects the interest
of the  certificateholders  in that  contract  within 90 days,  or other  period
specified in the related prospectus supplement,  after notice from the servicer,
the related seller will be obligated to repurchase  the defective  contract at a
price equal to:

o    the principal balance thereof as of the date of the repurchase; or

o    in the case of a series as to which an election  has been made to treat the
     related  trust fund as a REMIC,  at some other price as may be necessary to
     avoid a tax on a prohibited transaction, as described in Section 860F(a) of
     the Code;

in each case together  with accrued and unpaid  interest to the first day of the
month  following  repurchase,  plus the amount of any  unreimbursed  Advances in
respect of the  defective  contract.  The  servicer  will be required  under the
applicable  pooling and servicing  agreement to enforce this  obligation for the
benefit of the trustee and the  certificateholders,  following  the practices it
would  employ  in its good  faith  business  judgment  were it the  owner of the
contract.  This repurchase  obligation will constitute the sole remedy available
to  certificateholders or the trustee for a breach of representation by a seller
unaffiliated with the depositor.

     Neither the  depositor  nor the  servicer  will be  obligated to purchase a
contract if a seller  defaults on its  obligation to do so, and no assurance can
be given that sellers  will carry out their  respective  repurchase  obligations
with respect to defective contracts. However, to the extent that a breach of the
representations  and  warranties  of a seller may also  constitute a breach of a
representation  made  by the  depositor,  the  depositor  may  have  a  purchase
obligation as described in this prospectus  under "The Trust Fund--The  Contract
Pools."

                                       30
<PAGE>

     If stated in the related  prospectus  supplement,  the  depositor  may make
certain limited representations with respect to the contracts.

Assignment of Mortgage Certificates

     Pursuant to the applicable pooling and servicing  agreement for a series of
certificates that includes Mortgage  Certificates in the related trust fund, the
depositor will cause the Mortgage  Certificates to be transferred to the trustee
together  with  all  principal  and  interest   distributed  on  those  Mortgage
Certificates  after the Cut-off Date.  Each Mortgage  Certificate  included in a
trust  fund will be  identified  in a  schedule  appearing  as an exhibit to the
applicable   pooling  and  servicing   agreement.   The  schedule  will  include
information as to the principal  balance of each Mortgage  Certificate as of the
date of  issuance  of the  certificates  and its  interest  rate,  maturity  and
original principal balance. In addition, steps will be taken by the depositor as
are  necessary  to cause the  trustee  to become  the  registered  owner of each
Mortgage  Certificate  which is  included in a trust fund and to provide for all
distributions on each Mortgage Certificate to be made directly to the trustee.

     In connection with the assignment of Mortgage  Certificates to the trustee,
the depositor  will make certain  representations  and warranties in the related
pooling and servicing  agreement as to, among other things, its ownership of the
Mortgage  Certificates.  In the event that these  representations and warranties
are breached,  and the breach or breaches  adversely affect the interests of the
certificateholders in the Mortgage Certificates,  the depositor will be required
to  repurchase  the  affected  Mortgage  Certificates  at a price  equal  to the
principal  balance thereof as of the date of purchase  together with accrued and
unpaid interest  thereon at the related  pass-through  rate to the  distribution
date for the Mortgage Certificates.  The Mortgage Certificates with respect to a
series may also be subject to  repurchase,  in whole but not in part,  under the
circumstances and in the manner described in the related prospectus  supplement.
Any amounts received in respect of repurchases of Mortgage  Certificates will be
distributed to  certificateholders  on the immediately  succeeding  distribution
date or such other date described in the related prospectus supplement.

     The applicable prospectus supplement will describe the characteristics of
the mortgage loans and contracts underlying the Mortgage Certificates.

     If stated in the related prospectus supplement, within the specified period
following the date of issuance of a series of  certificates,  the depositor may,
in lieu of the  repurchase  obligation  set forth  above,  and in certain  other
circumstances,  deliver to the trustee new Mortgage Certificates in substitution
for any one or more of the Mortgage Certificates initially included in the trust
fund. The required  characteristics or any such substitute Mortgage Certificates
and  any  additional  restrictions  relating  to the  substitution  of  Mortgage
Certificates will be set forth in the related prospectus supplement.

Servicing of Mortgage Loans and Contracts

     Each seller of a mortgage  loan or a contract  may act as the  servicer for
the  related  mortgage  loan or contract  pursuant  to a pooling  and  servicing
agreement.  A  representative  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 description does not purport to be complete and is qualified
in its entirety by reference to the pooling and servicing agreement entered into
by the servicer,  the subservicer,  the depositor and the trustee. If a servicer
is appointed  pursuant to a separate  servicing  agreement,  that agreement will
contain servicing  provisions generally consistent with the provisions described
in this prospectus.

     Any  servicer  will be  required to perform the  customary  functions  of a
servicer, including:

o    collection  of payments  from  mortgagors  and obligors and  remittance  of
     collections to the servicer;

o    maintenance of primary  mortgage,  hazard  insurance,  FHA insurance and VA
     guarantees and filing and settlement of claims under those policies;

o    maintenance  of escrow  accounts of mortgagors  and obligors for payment of
     taxes,  insurance,  and other items  required  to be paid by the  mortgagor
     pursuant to terms of the related  mortgage loan or the obligor  pursuant to
     the related contract;

                                       31
<PAGE>

o    processing of assumptions or substitutions;

o    attempting to cure delinquencies;

o    supervising foreclosures or repossessions;

o    inspection and management of mortgaged properties, Cooperative Dwellings or
     manufactured homes under certain circumstances; and

o    maintaining   accounting   records  relating  to  the  mortgage  loans  and
     contracts.

     A  servicer  may  delegate  its  servicing   obligations   to   third-party
subservicers,  but will  continue to be  responsible  for the  servicing  of the
mortgage  loans or  contracts  pursuant  to the related  pooling  and  servicing
agreement.

     A servicer  or  subservicer  will also be  obligated  to make  Advances  in
respect of delinquent  installments  of principal and interest on mortgage loans
and contracts,  as described more fully in this prospectus under  "--Payments on
Mortgage  Loans" and  "--Payments on Contracts," and in respect of certain taxes
and insurance premiums not paid on a timely basis by mortgagors and obligors.

     As compensation for its servicing duties, a servicer or subservicer will be
entitled  to  amounts  from  payments  with  respect to the  mortgage  loans and
contracts  serviced  by it. A servicer or  subservicer  will also be entitled to
collect and retain, as part of its servicing compensation, certain fees and late
charges provided in the Mortgage Note or related instruments. A subservicer will
be reimbursed by the servicer for certain expenditures that it makes,  generally
to the same extent that the servicer  would be reimbursed  under the  applicable
pooling and servicing agreement.

Payments on Mortgage Loans

     The  servicer  will  establish  and  maintain  a  Certificate   Account  in
connection with each series.  The  Certificate  Account may be maintained with a
depository institution that is an affiliate of the servicer.

     The  servicer  will deposit in the  Certificate  Account for each series of
certificates on a daily basis the following payments and collections received or
made by it subsequent to the Cut-off Date,  other than payments due on or before
the Cut-off Date, in the manner set forth in the related prospectus supplement:

o    all payments on account of principal,  including principal prepayments,  on
     the related  mortgage loans,  net of any portion of payments that represent
     unreimbursed  or  unrecoverable  Advances  made by the related  servicer or
     subservicer;

o    all payments on account of interest on the related  mortgage loans,  net of
     any portion thereof retained by the servicer or subservicer, if any, as its
     servicing fee;

o    all Insurance  Proceeds or any  Alternative  Credit Support  established in
     lieu  of  any  insurance  and  described  in  the   applicable   prospectus
     supplement;

o    all Liquidation Proceeds, net of expenses of liquidation,  unpaid servicing
     compensation with respect to the related mortgage loans and unreimbursed or
     unrecoverable Advances made by the servicers or subservicers of the related
     mortgage loans;

o    all payments under the financial guaranty insurance policy,  surety bond or
     letter of credit, if any, with respect to that series;

o    all amounts  required to be deposited in the  Certificate  Account from the
     reserve fund, if any, for that series;

o    any Advances  made by a subservicer  or the servicer,  as described in this
     prospectus under "--Advances";

o    any  Buy-Down  Funds,  and, if  applicable,  investment  earnings  thereon,
     required to be deposited in the Certificate  Account,  as described  below;
     and

                                       32
<PAGE>

o    all  proceeds  of  any  mortgage  loan  repurchased  by the  servicer,  the
     depositor,  any subservicer or any seller  unaffiliated with the depositor,
     as  described  in this  prospectus  under  "The Trust  Fund--Mortgage  Loan
     Program--Representations   by   Unaffiliated   Sellers;   Repurchases"   or
     "--Assignment  of  Mortgage  Loans"  or  repurchased  by the  depositor  as
     described in this prospectus under "--Termination".

     If stated in the applicable prospectus supplement, the servicer, in lieu of
establishing a Certificate  Account,  may instead establish a Custodial Account.
If the  servicer  elects to  establish  a  Custodial  Account,  amounts  in that
Custodial Account,  after making the required deposits and withdrawals specified
in this  section  "--Payments  on  Mortgage  Loans,"  shall be  remitted  to the
Certificate   Account   maintained   by  the   trustee   for   distribution   to
certificateholders in the manner set forth in this prospectus and in the related
prospectus supplement. The servicer will also be required to advance any monthly
installment  of principal  and interest that was not timely  received,  less its
servicing fee, provided that this requirement shall only apply to the extent the
servicer  determines  in good  faith  any  advance  will be  recoverable  out of
insurance proceeds, proceeds of the liquidation of the related mortgage loans or
otherwise.

     In those cases where a subservicer is servicing a mortgage loan pursuant to
a  subservicing  agreement,  the  subservicer  will  establish  and  maintain  a
Servicing  Account  that will comply with either the  standards  set forth for a
Custodial  Account  or,  subject to the  conditions  set forth in the  servicing
related pooling and servicing agreement, meeting the requirements of the related
Rating Agency, and that is otherwise acceptable to the servicer. The subservicer
will be  required  to deposit  into the  Servicing  Account on a daily basis all
amounts  enumerated  above in  respect of the  mortgage  loans  received  by the
subservicer,  less its  servicing  compensation.  On the date  specified  in the
servicing related pooling and servicing  agreement,  the subservicer shall remit
to the  servicer  all funds held in the  Servicing  Account with respect to each
mortgage  loan.  Any payments or other amounts  collected by a special  servicer
with respect to any specially  serviced  mortgage loans will be deposited by the
related special servicer as set forth in the related prospectus supplement.

     With respect to each series which contains Buy-Down Loans, if stated in the
related  prospectus  supplement,  the servicer or the related  subservicer  will
establish a Buy-Down  Fund.  Amounts on deposit in the Buy-Down  Fund,  together
with  investment  earnings  thereon if  specified in the  applicable  prospectus
supplement, will be used to support the full monthly payments due on the related
Buy-Down  Loans on a level debt  service  basis.  Neither the  servicer  nor the
depositor  will be  obligated  to add to the  Buy-Down  Fund  should  investment
earnings prove  insufficient  to maintain the scheduled level of payments on the
Buy-Down Loans. To the extent that any insufficiency is not recoverable from the
mortgagor  under  the  terms of the  related  Mortgage  Note,  distributions  to
certificateholders  will be affected.  With respect to each Buy-Down  Loan,  the
servicer will  withdraw  from the Buy-Down  Fund and deposit in the  Certificate
Account  on or  before  each  distribution  date the  amount,  if any,  for each
Buy-Down Loan that, when added to the amount due on that date from the mortgagor
on the related Buy-Down Loan,  equals the full monthly payment that would be due
on the Buy-Down Loan if it were not subject to a buy-down plan.

     If stated in the prospectus  supplement  with respect to a series,  in lieu
of, or in addition to the foregoing, the depositor may deliver cash, a letter of
credit or a guaranteed  investment  contract to the trustee to fund the Buy-Down
Fund for that series, which shall be drawn upon by the trustee in the manner and
at the times specified in the related prospectus supplement.

Payments on Contracts

     A Certificate Account meeting the requirements set forth under "Description
of the Certificates--Payments on Mortgage Loans" will be established in the name
of the trustee.

     There will be deposited in the Certificate  Account or a Custodial  Account
on a daily basis the following  payments and collections  received or made by it
subsequent to the Cut-off Date,  including  scheduled  payments of principal and
interest  due after the Cut-off  Date but  received by the servicer on or before
the Cut-off Date:

o    all  obligor  payments  on  account  of  principal,   including   principal
     prepayments, on the contracts;

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<PAGE>

o    all obligor  payments on account of interest on the  contracts,  net of the
     servicing fee;

o    all  Liquidation  Proceeds  received  with respect to contracts or property
     acquired in respect thereof by foreclosure or otherwise;

o    all Insurance  Proceeds  received with respect to any contract,  other than
     proceeds  to be applied to the  restoration  or repair of the  manufactured
     home or released to the obligor;

o    any Advances made as described under "--Advances" and certain other amounts
     required  under the pooling and servicing  agreement to be deposited in the
     Certificate Account;

o    all amounts  received  from any credit  support  provided with respect to a
     series of certificates;

o    all  proceeds  of any  contract or  property  acquired  in respect  thereof
     repurchased by the servicer,  the depositor or otherwise as described above
     or under "--Termination" below; and

o    all amounts,  if any, required to be transferred to the Certificate Account
     from the reserve fund.

Collection of Payments on Mortgage Certificates

     The  Mortgage  Certificates  included  in the trust fund with  respect to a
series of certificates will be registered in the name of the trustee so that all
distributions  thereon  will be made  directly to the  trustee.  The pooling and
servicing  agreement  will  require  the  trustee,  if it  has  not  received  a
distribution with respect to any Mortgage Certificate by the second business day
after the date on which that  distribution  was due and payable  pursuant to the
terms of the Mortgage Certificate,  to request the issuer or guarantor,  if any,
of the Mortgage  Certificate to make payment as promptly as possible and legally
permitted  and to take  whatever  legal  action  against the  related  issuer or
guarantor as the trustee deems  appropriate under the  circumstances,  including
the prosecution of any claims in connection therewith. The reasonable legal fees
and expenses  incurred by the trustee in connection  with the prosecution of any
legal  action will be  reimbursable  to the  trustee out of the  proceeds of any
action and will be retained by the trustee prior to the deposit of any remaining
proceeds  in  the   Certificate   Account   pending   distribution   thereof  to
certificateholders  of the  affected  series.  In the event that the trustee has
reason to believe that the proceeds of any legal action may be  insufficient  to
reimburse it for its projected legal fees and expenses,  the trustee will notify
the related  certificateholders that it is not obligated to pursue any available
remedies unless  adequate  indemnity for its legal fees and expenses is provided
by those certificateholders.

Distributions on Certificates

     On each  distribution  date with respect to a series of  certificates,  the
servicer will withdraw from the applicable  Certificate Account funds on deposit
in that  Certificate  Account and  distribute,  or, if stated in the  applicable
prospectus supplement, will withdraw from the Custodial Account funds on deposit
in that Custodial Account and remit to the trustee,  who will distribute,  those
funds to  certificateholders  of  record  on the  applicable  Record  Date.  The
distributions  shall  occur in the manner  described  in this  prospectus  under
"Description of the  Certificates--Distributions  of Principal and Interest" and
in the related prospectus supplement. Those funds shall consist of the aggregate
of all  previously  undistributed  payments on account of  principal,  including
principal prepayments,  Insurance Proceeds and Liquidation Proceeds, if any, and
interest  received  after  the  Cut-off  Date and on or prior to the  applicable
Determination Date, except:

o    all payments that were due on or before the Cut-off Date;

o    all principal prepayments received during the month of distribution and all
     payments of principal and interest due after the related Due Period;

o    all payments which  represent  early receipt,  other than  prepayments,  of
     scheduled  payments  of  principal  and  interest  due on a date  or  dates
     subsequent to the first day of the month of distribution;

o    amounts received on particular mortgage loans or contracts as late payments
     of  principal  or interest  and  respecting  which the servicer has made an
     unreimbursed Advance;

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<PAGE>

o    amounts  representing  reimbursement for previously  unreimbursed  expenses
     incurred or Advances made by the servicer or subservicer; and

o    that portion of each  collection of interest on a particular  mortgage loan
     in the related  mortgage  pool or on a  particular  contract in the related
     contract pool that represents:

(1)  servicing  compensation  to the servicer  and, if  applicable,  the special
     servicer; or

(2)  amounts  payable  to the entity or  entities  specified  in the  applicable
     prospectus supplement or permitted withdrawals from the Certificate Account
     out of payments under the financial guaranty insurance policy,  surety bond
     or letter of credit, if any, with respect to the series.

     No later than the business day immediately  preceding the distribution date
for a series of  certificates,  the  servicer  will  furnish a statement  to the
trustee  setting  forth the  information  that is  necessary  for the trustee to
determine  the  amount of  distributions  to be made on the  certificates  and a
statement  setting forth certain  information with respect to the mortgage loans
or contracts.

     If  stated  in the  applicable  prospectus  supplement,  the  trustee  will
establish and maintain the Certificate Account for the benefit of the holders of
the  certificates  of the related series in which the trustee shall deposit,  as
soon as practicable after receipt,  each distribution made to the trustee by the
servicer,  as set forth above,  with respect to the mortgage loans or contracts,
any  distribution   received  by  the  trustee  with  respect  to  the  Mortgage
Certificates,  if any,  included in the trust fund and deposits from any reserve
fund or GPM Fund. If stated in the applicable  prospectus  supplement,  prior to
making any distributions to certificateholders,  any portion of the distribution
on the Mortgage  Certificates that represents  servicing  compensation,  if any,
payable to the trustee shall be deducted and paid to the trustee.

     Funds on deposit in the  Certificate  Account  may be  invested in Eligible
Investments  maturing in general not later than the business day  preceding  the
next distribution date. All income and gain realized from any investment will be
for the benefit of the  servicer,  or other  entity if stated in the  applicable
prospectus supplement.  The servicer or other entity will be required to deposit
the amount of any losses  incurred  with respect to  investments  out of its own
funds, when realized.

     The timing and method of distribution  of funds in the Certificate  Account
to classes  or  subclasses  of  certificates  having  differing  terms,  whether
subordinated or not, to the extent not described in this prospectus, will be set
forth in the related prospectus supplement.

Special Distributions

     To the extent specified in the prospectus  supplement  relating to a series
of  certificates,  one or more classes of  certificates  that do not provide for
monthly  distribution  dates may receive special  distributions  in reduction of
Certificate  Principal  Balance  in any  month,  other  than a month  in which a
distribution date occurs, if, as a result of principal prepayments on the assets
in  the  related  trust  fund  and/or  low  reinvestment   yields,  the  trustee
determines,  based on assumptions specified in the related pooling and servicing
agreement,  that  the  amount  of  cash  anticipated  to be on  deposit  in  the
Certificate  Account on the next distribution date for that series and available
to be  distributed  to the  holders  of the  certificates  of those  classes  or
subclasses may be less than the sum of:

o    the interest  scheduled to be distributed to holders of the certificates of
     those classes or subclasses; and

o    the amount to be distributed in reduction of Certificate  Principal Balance
     on those certificates on that distribution date.

Any  special  distributions  will be made in the same  priority  and  manner  as
distributions in reduction of Certificate Principal Balance would be made on the
next distribution date.

                                       35
<PAGE>

Reports to Certificateholders

     The  servicer  or the  trustee  will  include  with  each  distribution  to
certificateholders  of record of the related series, or within a reasonable time
thereafter,  a  statement  generally  setting  forth,  among other  things,  the
following information, if applicable:

      (1)  to  each  holder  of  a  certificate,   the  amount  of  the  related
           distribution  allocable  to  principal  of the assets of the  related
           trust  fund,  separately  identifying  the  aggregate  amount  of any
           prepayments of principal on the related mortgage loans,  contracts or
           mortgage loans underlying the related Mortgage  Certificates included
           in that trust fund, and the portion, if any, advanced by the servicer
           or a subservicer;

      (2)  to  each  holder  of  a  certificate,   the  amount  of  the  related
           distribution allocable to interest on the assets of the related trust
           fund  and  the  portion,  if  any,  advanced  by  the  servicer  or a
           subservicer;

      (3)  in  the  case  of  a  series  of   certificates   with  a   variable
           Pass-Through   Rate,  the   Pass-Through   Rate  applicable  to  the
           distribution;

      (4)  the  amount  of  coverage  remaining  under  the  financial  guaranty
           insurance  policy,  surety  bond,  letter of credit,  pool  insurance
           policy,  special hazard insurance policy,  mortgagor bankruptcy bond,
           or reserve fund as applicable,  in each case,  after giving effect to
           any amounts with respect thereto distributed to certificateholders on
           that distribution date;

      (5)  in  the  case  of  a  series  of  certificates  benefiting  from  the
           Alternative  Credit  Support  described  in  the  related  prospectus
           supplement,  the  amount of  coverage  under the  Alternative  Credit
           Support  after  giving  effect to any amounts  with  respect  thereto
           distributed to certificateholders on the distribution date;

      (6)  the aggregate unpaid  principal  balance of the assets of the related
           trust fund as of a date not earlier than the distribution  date after
           giving   effect   to   payments   of   principal    distributed    to
           certificateholders on the distribution date;

      (7)  the book value of any  collateral  acquired by the mortgage  pool or
           contract pool through foreclosure, repossession or otherwise;

      (8)  the number  and  aggregate  principal  amount of  mortgage  loans or
           contracts one month, two months, and three or more delinquent; and

      (9)  the remaining balance, if any, in the Pre-Funding Account.

     In  addition,  within a  reasonable  period  of time  after the end of each
calendar  year,  the servicer,  or the trustee,  if specified in the  applicable
prospectus  supplement,  will cause to be furnished to each certificateholder of
record at any time during that  calendar  year a report as to the  aggregate  of
amounts reported  pursuant to (1) and (2) above and other  information as in the
judgment of the servicer or the  trustee,  as the case may be, is needed for the
certificateholder  to prepare its tax return,  as applicable,  for that calendar
year or, in the event such  person was a  certificateholder  of record  during a
portion of that calendar year, for the applicable portion of that year.

Advances

     If stated in the related  prospectus  supplement,  each subservicer and the
servicer,  with respect to mortgage  loans or contracts  serviced by it and with
respect to  Advances  required to be made by the  subservicers  that were not so
made,  will be  obligated to advance  funds in an amount equal to the  aggregate
scheduled  installments of payments of principal and interest, as reduced by the
servicing  fee, that were due on the due date with respect to a mortgage loan or
contract  and that  were  delinquent,  as of the close of  business  on the date
specified in the pooling and servicing  agreement,  to be remitted no later than
the close of business on the business day immediately preceding the distribution
date,  subject  to  their  respective  determinations  that  such  advances  are
reimbursable under any financial guaranty insurance policy,  surety bond, letter
of credit, pool insurance policy,  primary mortgage insurance policy,  mortgagor
bankruptcy bond, from the proceeds of Alternative  Credit Support,  from cash in
the reserve fund, or  liquidation  proceeds from the mortgage loan or contracts.
In making  Advances,  the  subservicers and servicer will endeavor to maintain a
regular   flow  of   scheduled   interest   and   principal   payments   to  the
certificateholders,

                                       36
<PAGE>

rather than to guarantee or insure against losses. Any Advances are reimbursable
to the  subservicer or servicer out of related  recoveries on the mortgage loans
respecting  which  those  amounts  were  advanced.  In  addition,  Advances  are
reimbursable  from  cash in the  reserve  fund,  the  Servicing  or  Certificate
Accounts to the extent that the subservicer or the servicer, as the case may be,
shall determine that any Advances previously made are not ultimately recoverable
from other sources.

     The subservicers and the servicer  generally will also be obligated to make
advances in respect of certain  taxes,  insurance  premiums and, if  applicable,
property  protection  expenses  not paid by  mortgagors  or obligors on a timely
basis and,  to the  extent  deemed  recoverable,  foreclosure  costs,  including
reasonable  attorney's fees.  "Property  protection  expenses"  comprise certain
costs and  expenses  incurred  in  connection  with  defaulted  mortgage  loans,
acquiring title or management of REO Property or the sale of defaulted  mortgage
loans or REO  Properties,  as more fully  described  in the  related  prospectus
supplement.  Funds so advanced are reimbursable out of recoveries on the related
mortgage loans.  This right of reimbursement  for any advance by the servicer or
subservicer will be prior to the rights of the certificateholders to receive any
amounts  recovered with respect to the related  mortgage loans or contracts.  If
stated  in the  applicable  prospectus  supplement,  the  subservicers  and  the
servicer will also be required to advance an amount  necessary to provide a full
month's interest,  adjusted to the applicable  Pass-Through  Rate, in connection
with full or partial  prepayments  of the  mortgage  loans or  contracts.  Those
Advances will not be reimbursable to the subservicers or the servicer.

Collection and Other Servicing Procedures

     The servicer will be responsible  for servicing the mortgage loans pursuant
to the related  pooling and  servicing  agreement  for the related  series.  The
servicer may subcontract the servicing of all or a portion of the mortgage loans
to one or more  subservicers  and  may  subcontract  the  servicing  of  certain
commercial mortgage loans,  multifamily mortgage loans and/or Mixed-Use Mortgage
Loans that are in default or otherwise  require  special  servicing to a special
servicer,  and certain  information with respect to the special servicer will be
set forth in the related prospectus  supplement.  Any subservicer or any special
servicer  may be an  affiliate  of the  depositor  and may have  other  business
relationships with depositor and its affiliates.

     The servicer,  directly or through the subservicers or a special  servicer,
as the case may be, will make reasonable  efforts to collect all payments called
for  under  the  mortgage  loans or  contracts  and  will,  consistent  with the
applicable pooling and servicing agreement and any applicable financial guaranty
insurance policy, surety bond, letter of credit, pool insurance policy,  special
hazard insurance policy, primary mortgage insurance policy, mortgagor bankruptcy
bond, or Alternative Credit Support, follow the collection procedures it follows
with respect to mortgage  loans or contracts  serviced by it that are comparable
to the mortgage loans or contracts, except when, in the case of FHA or VA Loans,
applicable  regulations  require  otherwise.  Consistent  with  the  above,  the
servicer may, in its discretion, waive any late payment charge or any prepayment
charge or penalty  interest in connection with the prepayment of a mortgage loan
or  contract  or extend the due dates for  payments  due on a  Mortgage  Note or
contract for a period of not greater than 270 days,  provided that the insurance
coverage  for that  mortgage  loan or contract or the  coverage  provided by any
financial  guaranty   insurance  policy,   surety  bond,  letter  of  credit  or
Alternative Credit Support, will not be adversely affected.

     Under the related  pooling and servicing  agreement,  the servicer,  either
directly or through subservicers or a special servicer,  to the extent permitted
by law, may  establish  and maintain an escrow in which  mortgagors  or obligors
will be  required  to deposit  amounts  sufficient  to pay  taxes,  assessments,
mortgage  and  hazard  insurance  premiums  and  other  comparable  items.  This
obligation may be satisfied by the provision of insurance  coverage against loss
occasioned  by the failure to escrow  insurance  premiums  rather  than  causing
escrows to be made.  The  special  servicer,  if any,  will be required to remit
amounts received for the purposes  described in this paragraph on mortgage loans
serviced by it for deposit in the related escrow  account,  and will be entitled
to direct the servicer to make  withdrawals  from that escrow  account as may be
required for servicing of the related mortgage loans. Withdrawals from an escrow
account may be made to effect timely payment of taxes, assessments, mortgage and
hazard insurance,  to refund to mortgagors or obligors amounts  determined to be
overages,  to pay interest to  mortgagors or obligors on balances in that escrow
account,  if  required,  and to clear and  terminate  that escrow  account.  The
servicer will be responsible for the  administration  of each escrow account and
will be obliged to make advances to those  accounts when a deficiency  exists in
any of those escrow accounts.  Alternatively,  in lieu of establishing an escrow
account,  the servicer may procure a performance bond or other form of insurance
coverage,


                                       37
<PAGE>

in an amount  acceptable to the related Rating Agency,  covering loss occasioned
by the failure to escrow such amounts.

Standard Hazard Insurance

     Except to the extent  specified  in a related  prospectus  supplement,  the
terms of each pooling and servicing  agreement  will require the servicer or the
special  servicer,  if any, to cause to be maintained  for each mortgage loan or
contract  that it services,  and the  servicer  will be required to maintain for
each  mortgage  loan or contract  serviced by it directly,  a policy of standard
hazard insurance covering the mortgaged property underlying the related mortgage
loan or manufactured  home underlying the related contract in an amount at least
equal to the maximum  insurable value of the  improvements  securing the related
mortgage loan or contract or the principal  balance of the related mortgage loan
or contract, whichever is less.

     Each  subservicer,  the special servicer,  if any, or the servicer,  as the
case may be,  shall also be  required to  maintain  on  property  acquired  upon
foreclosure, or deed in lieu of foreclosure, of any mortgage loan or contract, a
standard hazard insurance policy. Any amounts collected by the subservicer,  the
special  servicer,  if any, or the  servicer  under those  policies,  other than
amounts to be applied to the restoration or repair of the mortgaged  property or
manufactured  home  or  released  to the  borrower  in  accordance  with  normal
servicing  procedures,  shall be deposited in the related  Servicing Account for
deposit  in the  Certificate  Account  or, in the case of the  servicer,  may be
deposited  directly  into  the  Certificate   Account.   Any  cost  incurred  in
maintaining  any  insurance  shall not, for the purpose of  calculating  monthly
distributions  to  certificateholders,  be added to the amount  owing  under the
mortgage loan or contract,  notwithstanding  that the terms of the mortgage loan
or contract may so permit.  The cost incurred in maintaining any insurance shall
be  recoverable  by the  servicer  or the  special  servicer,  if  any,  only by
withdrawal  of funds  from the  Servicing  Account  or by the  servicer  only by
withdrawal  from the  Certificate  Account,  as  described  in the  pooling  and
servicing agreement.

     No  earthquake  or other  additional  insurance  is to be  required  of any
borrower or  maintained  on property  acquired in respect of a mortgage  loan or
contract, other than pursuant to applicable laws and regulations as shall at any
time be in force and as shall require earthquake or additional  insurance.  When
the  mortgaged  property  or  manufactured  home  is  located  at  the  time  of
origination  of the mortgage  loan or contract in a federally  designated  flood
area, the related subservicer or the special servicer,  if any, or the servicer,
in the case of each  mortgage  loan or contract  serviced by it  directly,  will
cause flood insurance to be maintained,  to the extent available, in those areas
where flood  insurance is required  under the National  Flood  Insurance  Act of
1968, as amended.

     The depositor  will not require that a standard  hazard or flood  insurance
policy be maintained on the  Cooperative  Dwelling  relating to any  Cooperative
Loan. Generally, the Cooperative itself is responsible for maintenance of hazard
insurance for the property owned by the Cooperative and the  tenant-stockholders
of that Cooperative do not maintain individual hazard insurance policies. To the
extent,  however,  that a Cooperative and the related  borrower on a Cooperative
Loan do not  maintain  insurance  or do not  maintain  adequate  coverage or any
insurance  proceeds are not applied to the restoration of damaged property,  any
damage to that borrower's  Cooperative  Dwelling or that Cooperative's  building
could  significantly  reduce the value of the  collateral  securing  the related
Cooperative Loan to the extent not covered by other credit support.

     The related  pooling and  servicing  agreement  will permit the servicer to
obtain and maintain a blanket  policy  insuring  against hazard losses on all of
the related  mortgage  loans or  contracts,  in lieu of  maintaining  a standard
hazard  insurance  policy for each  mortgage  loan or contract that it services.
This blanket policy may contain a deductible  clause, in which case the servicer
will,  in the event that there has been a loss that would have been covered by a
policy absent the deductible,  deposit in the Certificate Account the amount not
otherwise  payable under the blanket  policy  because of the  application of the
deductible clause.

     Since the amount of hazard  insurance to be maintained on the  improvements
securing the mortgage  loans or contracts may decline as the principal  balances
owing thereon decrease,  and since properties have  historically  appreciated in
value over time, in the event of partial loss, hazard insurance  proceeds may be
insufficient  to fully restore the damaged  mortgaged  property or  manufactured
home. See "Description of  Insurance--Special  Hazard Insurance  Policies" for a
description of the limited  protection  afforded by a special  hazard  insurance
policy against

                                       38
<PAGE>

losses  occasioned by certain  hazards that are otherwise  uninsured  against as
well as against losses caused by the application of the  coinsurance  provisions
contained in the standard hazard insurance policies.

     With respect to mortgage  loans secured by commercial  property,  Mixed-Use
Property and multifamily property,  certain additional insurance policies may be
required,  including,  but not limited to, loss of rent  endorsements,  business
interruption  insurance and comprehensive  public liability  insurance,  and the
related  pooling and  servicing  agreement  may require the servicer to maintain
public liability insurance with respect to any related REO Properties.  Any cost
incurred by the servicer in  maintaining  any insurance  policy will be added to
the  amount  owing  under  the  related  mortgage  loan  where the terms of that
mortgage loan so permit; provided,  however, that the addition of that cost will
not be taken into account for purposes of  calculating  the  distribution  to be
made to  certificateholders.  These costs may be recovered by the servicer  from
the  Certificate  Account,  with  interest  thereon,  as provided by the related
pooling and servicing agreement.

Special Hazard Insurance

     If  stated in the  related  prospectus  supplement,  the  servicer  will be
required to exercise its best reasonable  efforts to maintain the special hazard
insurance policy, if any, with respect to a series of certificates in full force
and effect,  unless  coverage  thereunder has been exhausted  through payment of
claims,  and will pay the premium for the special hazard  insurance  policy on a
timely  basis;  provided,  however,  that  the  servicer  shall be under no such
obligation  if coverage  under the pool  insurance  policy with  respect to that
series has been exhausted.  If the special hazard  insurance policy is cancelled
or  terminated  for any  reason,  other  than the  exhaustion  of  total  policy
coverage,  the servicer will exercise its best reasonable efforts to obtain from
another insurer a replacement  policy comparable to the special hazard insurance
policy with a total coverage that is equal to the then existing  coverage of the
special hazard  insurance  policy;  provided that if the cost of any replacement
policy is  greater  than the cost of the  terminated  special  hazard  insurance
policy,  the amount of coverage under the replacement  special hazard  insurance
policy  may be  reduced to a level  such that the  applicable  premium  will not
exceed the cost of the special hazard insurance policy that was replaced.

Pool Insurance

     To the extent specified in a related  prospectus  supplement,  the servicer
will exercise its best  reasonable  efforts to maintain a pool insurance  policy
with respect to a series of  certificates  in effect  throughout the term of the
pooling and servicing  agreement,  unless coverage thereunder has been exhausted
through  payment of claims,  and will pay the  premiums  for the pool  insurance
policy on a timely basis.  In the event that the related pool insurer  ceases to
be a  qualified  insurer  because  it is not  qualified  to  transact a mortgage
guaranty  insurance  business under the laws of the state of its principal place
of business or any other state which has  jurisdiction  over the pool insurer in
connection with the pool insurance  policy,  or if the pool insurance  policy is
cancelled  or  terminated  for any reason,  other than the  exhaustion  of total
policy  coverage,  the servicer  will  exercise its best  reasonable  efforts to
obtain a replacement  policy of pool insurance  comparable to the pool insurance
policy  and may  obtain a total  coverage  that is  equal  to the then  existing
coverage of the special hazard  insurance  policy;  provided that if the cost of
any replacement policy is greater than the cost of the terminated pool insurance
policy,  the amount of coverage under the replacement  pool insurance policy may
be reduced to a level such that the applicable  premium will not exceed the cost
of the pool insurance policy that was replaced.

Primary Mortgage Insurance

     To the extent specified in the related prospectus supplement,  the servicer
will be required to keep in force and effect for each  mortgage  loan secured by
single  family  property  serviced by it  directly,  and each  subservicer  of a
mortgage loan secured by single family property will be required to keep in full
force and effect with respect to each mortgage loan serviced by it, in each case
to the extent required by the underwriting standards of the depositor, a primary
mortgage  insurance  policy  issued by a qualified  insurer  with regard to each
mortgage loan for which coverage is required pursuant to the applicable  pooling
and servicing agreement and to act on behalf of the trustee, or "insured," under
each primary mortgage insurance policy. Neither the servicer nor the subservicer
will be  permitted to cancel or refuse to renew any primary  mortgage  insurance
policy in effect at the date of the initial issuance of a series of certificates
that is required to be kept in force  under the  related  pooling and  servicing
agreement  unless  a  replacement  primary  mortgage  insurance  policy  for the
cancelled or non-renewed policy is



                                       39
<PAGE>

maintained  with an insurer  whose  claims-paying  ability is  acceptable to the
related Rating Agency. See "Description of Insurance--Primary Mortgage Insurance
Policies."

Mortgagor Bankruptcy Bond

     If stated in the related prospectus supplement,  the servicer will exercise
its best reasonable efforts to maintain a mortgagor bankruptcy bond for a series
of certificates in full force and effect  throughout the term of the pooling and
servicing  agreement,  unless  coverage  thereunder has been  exhausted  through
payment of claims,  and will pay the premiums for the mortgagor  bankruptcy bond
on a timely basis.  At the request of the depositor,  coverage under a mortgagor
bankruptcy  bond will be  cancelled  or  reduced by the  servicer  to the extent
permitted  by the related  Rating  Agency,  provided  that any  cancellation  or
reduction does not adversely affect the then current rating of that series.  See
"Description of Insurance--Mortgagor Bankruptcy Bond."

Presentation of Claims

     The servicer, on behalf of itself, the trustee and the  certificateholders,
will  present  claims to HUD,  the VA,  the pool  insurer,  the  special  hazard
insurer,  the issuer of the mortgagor bankruptcy bond, and each primary mortgage
insurer,  as  applicable,  and take whatever  reasonable  steps are necessary to
permit  recovery under the related  insurance  policies or mortgagor  bankruptcy
bond, if any, with respect to a series  concerning  defaulted  mortgage loans or
contracts or mortgage  loans or  contracts  that are the subject of a bankruptcy
proceeding.  All  collections  by the  servicer  under any FHA  insurance  or VA
guarantee,  any pool insurance policy,  any primary mortgage insurance policy or
any  mortgagor  bankruptcy  bond and,  where the related  property  has not been
restored,  any special  hazard  insurance  policy,  are to be  deposited  in the
Certificate  Account,  subject to withdrawal as heretofore  described.  In those
cases in which a mortgage  loan or contract is  serviced by a  subservicer,  the
subservicer,  on behalf of itself, the trustee and the certificateholders,  will
present claims to the applicable primary mortgage insurer and to the FHA and the
VA, as  applicable,  and all  collections  thereunder  shall be deposited in the
Servicing Account, subject to withdrawal, as set forth above, for deposit in the
Certificate Account.

     If any property  securing a defaulted  mortgage loan or contract is damaged
and proceeds,  if any, from the related  standard hazard insurance policy or the
applicable  special  hazard  insurance  policy are  insufficient  to restore the
damaged  property to a condition  sufficient to permit  recovery  under any pool
insurance policy or any primary mortgage insurance policy,  neither the servicer
nor the  subservicer,  as the case may be,  will be  required  to expend its own
funds to restore the damaged property unless it determines,  and, in the case of
a determination by a subservicer, the servicer agrees:

o    that the restoration  will increase the proceeds to  certificateholders  on
     liquidation  of the mortgage loan or contract  after  reimbursement  of the
     expenses  incurred by the subservicer or the servicer,  as the case may be;
     and

o    that the expenses will be recoverable  through  proceeds of the sale of the
     mortgaged  property or proceeds of any related pool insurance  policy,  any
     related primary mortgage insurance policy or otherwise.

     If recovery under a pool insurance  policy or any related primary  mortgage
insurance  policy  is not  available  because  the  related  subservicer  or the
servicer  has been unable to make the above  determinations  or  otherwise,  the
subservicer or the servicer is nevertheless  obligated to follow whatever normal
practices and procedures  are deemed  necessary or advisable to realize upon the
defaulted  mortgage  loan. If the proceeds of any  liquidation  of the mortgaged
property  or  manufactured  home are  less  than the  principal  balance  of the
defaulted mortgage loan or contract, respectively, plus interest accrued thereon
at the  Pass-Through  Rate,  and if  coverage  under any other  method of credit
support with respect to that series is  exhausted,  the related  trust fund will
realize a loss in the amount of the  difference  plus the  aggregate of expenses
incurred by the subservicer or the servicer in connection with those proceedings
and which are reimbursable under the related pooling and servicing agreement. In
the  event  that any  proceedings  result  in a total  recovery  that is,  after
reimbursement  to the subservicer or the servicer of its expenses,  in excess of
the principal  balance of the related  mortgage loan or contract,  together with
accrued and unpaid interest  thereon at the applicable  Pass-Through  Rates, the
subservicer and the servicer will be entitled to

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<PAGE>

withdraw  amounts  representing  normal  servicing  compensation  on the related
mortgage loan or contract from the Servicing Account or the Certificate Account,
as the case may be.

Enforcement of Due-on-Sale Clauses; Realization Upon Defaulted Mortgage Loans

     Each  pooling  and  servicing   agreement  with  respect  to   certificates
representing  interests in a mortgage pool will provide that, when any mortgaged
property has been conveyed by the related borrower,  the related  subservicer or
the  servicer,  as the case may be, will,  to the extent it has knowledge of the
conveyance, exercise its rights to accelerate the maturity of that mortgage loan
under any "due-on-sale"  clause applicable thereto, if any, unless it reasonably
believes that enforcement of the  "due-on-sale"  clause is not exercisable under
applicable law or regulations,  would result in loss of insurance  coverage with
respect  to that  mortgage  loan or  would  not be in the best  interest  of the
related series of  certificateholders.  In any case where the due-on-sale clause
will not be exercised,  the subservicer or the servicer is authorized to take or
enter into an assumption and  modification  agreement from or with the person to
whom the  related  mortgaged  property  has  been or is  about  to be  conveyed,
pursuant to which that 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. In the case
of an FHA Loan,  such an  assumption  can occur  only with HUD  approval  of the
substitute mortgagor. Each subservicer and the servicer will also be authorized,
with the prior approval of the insurer under any required insurance policies, to
enter into a substitution of liability  agreement with that person,  pursuant to
which the  original  mortgagor  is released  from  liability  and that person is
substituted as mortgagor and becomes liable under the Mortgage Note.

     Under each  pooling  and  servicing  agreement  relating  to a series,  the
subservicer  or the  servicer,  as the  case  may  be,  will  foreclose  upon or
otherwise  comparably convert the ownership of properties  securing those of the
related  mortgage  loans as come into and continue in default and as to which no
satisfactory  arrangements can be made for collection of delinquent payments. In
connection  with the  foreclosure or other  conversion,  the  subservicer or the
servicer will follow whatever  practices and procedures are deemed  necessary or
advisable  and as shall be normal and usual in its  general  mortgage  servicing
activities,  except when, in the case of FHA or VA Loans, applicable regulations
require  otherwise.  However,  neither the  subservicer nor the servicer will be
required to expend its own funds in connection  with any  foreclosure or towards
the  restoration  of any  property  unless it  determines  and, in the case of a
determination by a subservicer, the servicer agrees:

o    that the  restoration  and/or  foreclosure  will  increase  the proceeds of
     liquidation  of the  related  mortgage  loan  to  certificateholders  after
     reimbursement to itself for expenses; and

o    that the expenses  will be  recoverable  to it either  through  Liquidation
     Proceeds,  Insurance  Proceeds,  payments  under  the  letter  of credit or
     amounts in the reserve fund, if any, with respect to the related series, or
     otherwise.

     Any  prospective  purchaser of a  Cooperative  Dwelling  will  generally be
required  to obtain  the  approval  of the  board of  directors  of the  related
Cooperative  before  purchasing  the  shares  and  acquiring  rights  under  the
proprietary  lease or occupancy  agreement  securing the  Cooperative  Loan. See
"Certain  Legal  Aspects  of the  Mortgage  Loans  and  Contracts--The  Mortgage
Loans--Foreclosure"  in this  prospectus.  This approval is usually based on the
purchaser's  income  and net worth and  numerous  other  factors.  Although  the
Cooperative's  approval is unlikely to be unreasonably  withheld or delayed, the
necessity  of  acquiring  the  approval  could  limit the  number  of  potential
purchasers for those shares and otherwise limit the trust fund's ability to sell
and realize the value of those shares.

     The market value of any single  family  property may have declined in value
since the date of  origination  of the  mortgage  loan.  The market value of any
commercial  property,  multifamily  property or Mixed-Use  Property  obtained in
foreclosure or by deed in lieu of foreclosure will be based substantially on the
operating income obtained from renting the commercial or dwelling units. Since a
default on a mortgage loan secured by commercial property,  multifamily property
or Mixed-Use  Property is likely to have occurred because operating income,  net
of  expenses,  is  insufficient  to make debt  service  payments  on the related
mortgage loan, it can be anticipated that the market value of that property will
be less than was anticipated when the related  mortgage loan was originated.  To
the extent that



                                       41
<PAGE>

the equity in the property does not absorb the loss in market value and the loss
is not covered by other credit support, a loss may be experienced by the related
trust fund.

     With respect to multifamily  property  consisting of an apartment  building
owned  by  a  Cooperative,  the  Cooperative's  ability  to  meet  debt  service
obligations on the mortgage loan, as well as all other operating expenses,  will
be  dependent  in large part on the  receipt of  maintenance  payments  from the
tenant-stockholders, as well as any rental income from units or commercial areas
the Cooperative might control. Unanticipated expenditures may in some cases have
to be paid by special assessments of the tenant-stockholders.  The Cooperative's
ability to pay the principal  amount of the mortgage loan at maturity may depend
on its ability to refinance the mortgage loan. The depositor,  any  unaffiliated
seller and the servicer will have no obligation to provide  refinancing  for any
such mortgage loan.

     The servicer or subservicer will treat a defaulted  mortgage loan as having
been finally liquidated after all Liquidation  Proceeds,  Insurance Proceeds and
other amounts that the servicer or subservicer  expects to receive in connection
with the liquidation have been received.  Any Realized Loss will be allocated to
the certificates in the manner set forth in the related  prospectus  supplement.
Generally,  amounts  received  after a Realized  Loss has been  allocated to the
certificates  will not be distributed  to the  certificateholders,  however,  if
stated in the related prospectus  supplement,  amounts received after a Realized
Loss  has  been  allocated  to  the  certificates  may  be  distributed  to  the
certificateholders.

Enforcement of "Due-on-Sale" Clauses; Realization Upon Defaulted Contracts

     Each  pooling  and  servicing   agreement  with  respect  to   certificates
representing   interests  in  a  contract  pool  will  provide  that,  when  any
manufactured  home  securing a contract  is about to be  conveyed by the related
obligor,  the  servicer,  to the  extent  it has  knowledge  of the  prospective
conveyance  and prior to the time of the  consummation  of the  conveyance,  may
exercise  its rights to  accelerate  the  maturity  of that  contract  under the
applicable  "due-on-sale"  clause,  if any, unless it is not  exercisable  under
applicable  law. In that case,  the servicer is authorized to take or enter into
an assumption agreement from or with the person to whom the related manufactured
home has been or is about to be conveyed,  pursuant to which that person becomes
liable under the contract and, unless determined to be materially adverse to the
interests  of  certificateholders,  with the prior  approval of the related pool
insurer,  if any, to enter into a substitution of liability  agreement with that
person,  pursuant to which the original  obligor is released from  liability and
that person is  substituted  as obligor and becomes  liable under the  contract.
Where authorized by the contract,  the annual  percentage rate may be increased,
upon assumption, to the then-prevailing market rate, but shall not be decreased.

     Under  pooling and  servicing  agreement,  the servicer  will  repossess or
otherwise  comparably convert the ownership of properties  securing those of the
related  manufactured homes as come into and continue in default and as to which
no satisfactory  arrangements can be made for collection of delinquent payments.
In  connection  with the  repossession  or other  conversion,  the  servicer  or
subservicer  will  follow  whatever  practices  and  procedures  it  shall  deem
necessary or advisable and as shall be normal and usual in its general  contract
servicing activities. The servicer or subservicer, however, will not be required
to expend its own funds in  connection  with any  repossession  or  towards  the
restoration of any property unless it determines:

o    that  the  restoration  or  repossession  will  increase  the  proceeds  of
     liquidation  of  the  related  contract  to  the  certificateholders  after
     reimbursement to itself for the expenses; and

o    that the expenses  will be  recoverable  to it either  through  liquidation
     proceeds or through insurance proceeds.

Servicing Compensation and Payment of Expenses

     Under the pooling and servicing agreement for a series of certificates, the
depositor or the person or entity specified in the related prospectus supplement
and any  servicer  will be  entitled  to  receive  an amount  described  in that
prospectus  supplement.  The servicer's primary  compensation  generally will be
equal to a monthly  servicing  fee in the amount  specified  in the  pooling and
servicing agreement.  Servicing compensation shall be payable by withdrawal from
the related Servicing  Account prior to deposit in the Certificate  Account from
interest payments on


                                       42
<PAGE>


the mortgage loans or contracts,  Insurance  Proceeds,  Liquidation  Proceeds or
letter of credit payments, as applicable.  Additional servicing  compensation in
the form of  prepayment  charges,  assumption  fees,  late  payment  charges  or
otherwise shall be retained by the  subservicers  and the servicer to the extent
not  required  to be  deposited  in the  Certificate  Account.  If the  servicer
subcontracts  the servicing of specially  serviced  mortgage  loans to a special
servicer,  the amount and calculation of the fee payable to the special servicer
will be set forth in the related prospectus  supplement.  Subservicers will also
be  entitled to receive  servicing  compensation  in  addition to the  servicing
compensation to the extent described in the prospectus supplement.

     The  subservicers,  any special  servicer and the servicer will pay certain
expenses  incurred in  connection  with the  servicing of the mortgage  loans or
contracts,  including,  without  limitation,  payment  of the  insurance  policy
premiums and, in the case of the servicer, fees or other amounts payable for any
Alternative  Credit  Support,  payment  of the  fees  and  disbursements  of the
trustee, and any custodian selected by the trustee, the certificate register for
the related series and independent  accountants and payment of expenses incurred
in enforcing the obligations of servicers and sellers. Certain of these expenses
may be  reimbursable  pursuant to the terms of the related pooling and servicing
agreement.  In  addition,  the  servicer  will be entitled to  reimbursement  of
expenses  incurred  in  enforcing  the  obligations  of any  special  servicers,
subservicers and any sellers under certain circumstances.

     As set  forth in the  preceding  section,  the  subservicers,  any  special
servicer and the servicer will be entitled to reimbursement for certain expenses
incurred by them in connection with the liquidation of defaulted  mortgage loans
or  contracts.  The  related  trust fund will  suffer no loss by reason of those
expenses  to the  extent  claims are fully  paid  under the  financial  guaranty
insurance policy, surety bond or letter of credit, if any, the related insurance
policies,  from amounts in the reserve fund or under any applicable  Alternative
Credit Support described in a prospectus supplement. In the event, however, that
claims are either not made or fully paid under a  financial  guaranty  insurance
policy, surety bond, letter of credit,  insurance policies or Alternative Credit
Support, or if coverage thereunder has ceased, or if amounts in the reserve fund
are not sufficient to fully pay the losses, the related trust fund will suffer a
loss to the extent that the Liquidation  Proceeds,  after  reimbursement  of the
expenses of the subservicers or the servicer,  as the case may be, are less than
the principal balance of the related mortgage loan or contract. In addition, the
subservicers,   a  special  servicer  and  the  servicer  will  be  entitled  to
reimbursement   of  expenditures   incurred  by  them  in  connection  with  the
restoration of a mortgaged property,  Cooperative Dwelling or manufactured home.
The right of reimbursement will be prior to the rights of the certificateholders
to receive any payments under the financial  guaranty  insurance policy,  surety
bond or  letter of  credit,  if any,  or from any  related  Insurance  Proceeds,
Liquidation Proceeds, amounts in the reserve fund or any proceeds of Alternative
Credit Support.

     Under  the  applicable  trust  agreement,  the  trustee  or  a  certificate
administrator  will be entitled to deduct,  from  distributions of interest with
respect to the  Mortgage  Certificates,  a  specified  percentage  of the unpaid
principal balance of each Mortgage  Certificate as servicing  compensation.  The
trustee or  certificate  administrator  shall be required  to pay all  expenses,
except as expressly provided in the related trust agreement,  subject to limited
reimbursement as provided in the related trust agreement.

Evidence as to Compliance

     The servicer will deliver to the  depositor  and the trustee,  on or before
the  date  specified  in the  pooling  and  servicing  agreement,  an  officer's
certificate stating that:

o          a review  of the  activities  of the  servicer  and the  subservicers
           during the preceding calendar year and of their performance under the
           related  pooling  and  servicing  agreement  has been made  under the
           supervision of that officer; and

o          to the best of that  officer's  knowledge,  based on the review,  the
           servicer and each subservicer has fulfilled all its obligations under
           the related pooling and servicing agreement and the minimum servicing
           standards  set forth in the Uniform  Single  Attestation  Program for
           Mortgage Bankers,  or, if there has been a default in the fulfillment
           of any obligation,  specifying each default known to that officer and
           the nature and status thereof.

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<PAGE>

The  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  servicing  of the
mortgage  loans or contracts,  the servicing of the mortgage  loans or contracts
was  conducted in  compliance  with the  provisions of the pooling and servicing
agreement,  and the minimum servicing  standards set forth in the Uniform Single
Attestation Program for Mortgage Bankers,  except for the exceptions as the firm
of independent public accountants believes it is required to report.

Certain Matters Regarding the Servicer, the Depositor, the Trustee and the
Special Servicer

     The servicer  under each pooling and servicing  agreement  will be named in
the  applicable  prospectus  supplement.  The entity acting as servicer may be a
seller   unaffiliated   with  the  depositor  and  have  other  normal  business
relationships with the depositor and/or affiliates of the depositor or may be an
affiliate of the  depositor.  In the event there is no servicer  under a pooling
and servicing  agreement,  all servicing of mortgage  loans or contracts will be
performed by a servicer  pursuant to a servicing  agreement,  which will provide
for servicing responsibilities similar to those described in this prospectus for
a servicer acting pursuant to a pooling and servicing agreement.

     The  servicer  may not resign  from its  obligations  and duties  under the
pooling and servicing  agreement  except in connection with an assignment of its
obligations and duties permitted by the pooling and servicing  agreement or upon
a  determination  that its duties  thereunder  are no longer  permissible  under
applicable  law. No  resignation  will become  effective  until the trustee or a
successor  servicer has assumed the servicer's  obligations and duties under the
pooling and servicing agreement.

     The trustee under each pooling and servicing  agreement or trust  agreement
will be named in the applicable  prospectus  supplement.  The commercial bank or
trust company serving as trustee may have normal banking  relationships with the
depositor and/or its affiliates and with the servicer and/or its affiliates.

     The trustee may resign from its  obligations  under the related pooling and
servicing  agreement or trust  agreement at any time, in which event a successor
trustee will be appointed.  In addition, the depositor may remove the trustee if
the trustee  ceases to be eligible to act as trustee  under the related  pooling
and servicing  agreement or trust agreement or if the trustee becomes insolvent,
at which  time the  depositor  will  become  obligated  to  appoint a  successor
trustee.  The  trustee  may  also  be  removed  at any  time by the  holders  of
certificates  evidencing  voting  rights  aggregating  not less  than 50% of the
voting rights evidenced by the certificates of that series.  Any resignation and
removal of the trustee,  and the  appointment of a successor  trustee,  will not
become effective until acceptance of the appointment by the successor trustee.

     Each pooling and servicing  agreement and trust agreement will also provide
that neither the depositor nor the servicer nor any director,  officer, employee
or agent of the  depositor or the servicer or the  trustee,  or any  responsible
officers of the trustee will be under any  liability to 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 none of the depositor,  the servicer or the
trustee nor any  director,  officer,  employee or agent of the  depositor or the
servicer or the  trustee,  or any  responsible  officers of the trustee  will be
protected against, in the case of the servicer and the depositor,  any breach of
representations or warranties made by them, and in the case of the servicer, the
depositor and the trustee, against any liability that would otherwise be imposed
by reason of willful misfeasance,  bad faith or negligence in the performance of
its duties or by reason of  reckless  disregard  of its  obligations  and duties
thereunder.

     Each  pooling and  servicing  agreement  and trust  agreement  will further
provide  that the  depositor,  the  servicer  and the trustee and any  director,
officer and  employee  or agent of the  depositor,  the  servicer or the trustee
shall be  entitled  to  indemnification,  by the  trust  fund in the case of the
depositor and servicer and by the servicer in the case of the trustee,  and will
be held harmless  against any loss,  liability or expense incurred in connection
with any legal action  relating to the applicable  related pooling and servicing
agreement or the  certificates,  and in the case of the trustee,  resulting from
any error in any tax or information  return prepared by the servicer or from the
exercise of any power of attorney  granted pursuant to the pooling and servicing
agreement,  other than any loss,  liability  or expense  related to any specific
mortgage loan, contract or Mortgage  Certificate,  except any loss, liability or
expense otherwise  reimbursable  pursuant to the applicable  related pooling and
servicing  agreement,  and any loss,  liability or expense incurred by reason of
willful  misfeasance,  bad  faith or gross  negligence  (or,  in the case of the
trustee,


                                       44
<PAGE>

negligence),  in the  performance  of their  duties  thereunder  or by reason of
reckless disregard of their obligations and duties thereunder. In addition, each
related pooling and servicing  agreement will provide that neither the depositor
nor the servicer, as the case may be, will be under any obligation to appear in,
prosecute or defend any legal action that is not  incidental to its duties under
the related pooling and servicing  agreement and that in its opinion may involve
it in any expense or liability.  The depositor or the servicer may, however,  in
their  discretion,  undertake any action  deemed by them  necessary or desirable
with respect to the applicable  related pooling and servicing  agreement and the
rights  and  duties  of  the   parties   thereto  and  the   interests   of  the
certificateholders thereunder. In that event, the legal expenses and costs of an
action  and any  liability  resulting  therefrom  will be  expenses,  costs  and
liabilities of the related trust fund, and the servicer or the depositor, as the
case may be, will be entitled to be reimbursed  therefor out of the  Certificate
Account.

     If the servicer  subcontracts the servicing of specially  serviced mortgage
loans to a special servicer,  the standard of care for, and any  indemnification
to be  provided  to,  the  special  servicer  will be set  forth in the  related
prospectus supplement or pooling and servicing agreement.

Events of Default

     Events of default under each pooling and servicing agreement will include:

o    any failure to make a specified payment which continues unremedied, in most
     cases, for five business days after the giving of written notice;

o    any failure by the trustee, the subservicer or the servicer, as applicable,
     duly to  observe  or  perform  in any  material  respect  any  other of its
     covenants  or  agreements  in the pooling  and  servicing  agreement  which
     failure shall continue for 60 days, 15 days in the case of a failure to pay
     the premium for any insurance policy,  or any breach of any  representation
     and warranty made by the servicer or the subservicer, if applicable,  which
     continues unremedied for 120 days after the giving of written notice of the
     failure or breach; and

o    certain events of insolvency,  readjustment of debt,  marshalling of assets
     and  liabilities  or  similar  proceedings  regarding  the  servicer  or  a
     subservicer, as applicable.

Rights Upon Event of Default

     So long as an Event of Default  with  respect  to a series of  certificates
remains  unremedied,  the depositor,  the trustee or the holders of certificates
evidencing  not less than the  percentage of the voting rights  evidenced by the
certificates  of that  series  specified  in the related  pooling and  servicing
agreement may terminate all of the rights and  obligations of the servicer under
the  pooling  and  servicing  agreement  and in and to the  mortgage  loans  and
contracts  and the  proceeds  thereof,  whereupon,  subject  to  applicable  law
regarding  the  trustee's  ability  to make  advances,  the  trustee  or, if the
depositor  so notifies  the  trustee  and the  servicer,  the  depositor  or its
designee,  will succeed to all the  responsibilities,  duties and liabilities of
the  servicer  under the related  pooling and  servicing  agreement  and will be
entitled  to similar  compensation  arrangements.  In the event that the trustee
would be obligated to succeed the servicer but is unwilling or unable so to act,
it may  appoint,  or  petition  to a court  of  competent  jurisdiction  for the
appointment  of, a successor  servicer.  Pending an  appointment,  the  trustee,
unless  prohibited  by law from so  acting,  shall be  obligated  to act in that
capacity.  The trustee and the  successor  servicer may agree upon the servicing
compensation  to be paid to the  successor  servicer,  which in no event  may be
greater  than the  compensation  to the servicer  under the related  pooling and
servicing agreement.

Amendment

     Each pooling and servicing  agreement may be amended by the depositor,  the
servicer and the trustee, without the consent of the certificateholders:

o    to cure any ambiguity;

o    to correct or  supplement  any  provision  in that  pooling  and  servicing
     agreement that may be inconsistent with any other provision in that pooling
     and servicing agreement; or

                                       45
<PAGE>

o    to make any other  provisions with respect to matters or questions  arising
     under the related pooling and servicing agreement that are not inconsistent
     with the  provisions  thereof,  provided that the action will not adversely
     affect in any material  respect the interests of any  certificateholder  of
     the related series.

     The related  pooling  and  servicing  agreement  may also be amended by the
depositor,  the  servicer  and the  trustee  with  the  consent  of  holders  of
certificates  evidencing not less than 66 2/3% of the voting rights evidenced by
the certificates, for the purpose of adding any provisions to or changing in any
manner or  eliminating  any of the  provisions  of that  pooling  and  servicing
agreement or of  modifying  in any manner the rights of the  certificateholders;
provided, however, that no amendment may:

(1)  reduce in any  manner  the  amount  of,  delay the  timing of or change the
     manner in which payments  received on or with respect to mortgage loans and
     contracts are required to be  distributed  with respect to any  certificate
     without the consent of the holder of that certificate;

(2)  adversely  affect in any material respect the interests of the holders of a
     class or  subclass  of the senior  certificates,  if any,  of a series in a
     manner  other than that set forth in (1) above  without  the consent of the
     holders of the senior certificates of that class or subclass evidencing not
     less than 66 2/3% of that class or subclass;

(3)  adversely  affect in any material  respect the  interests of the holders of
     the subordinated  certificates,  if any, of a series in a manner other than
     that  set  forth  in (1)  above  without  the  consent  of the  holders  of
     subordinated certificates evidencing not less than 66 2/3% of that class or
     subclass; or

(4)  reduce the aforesaid  percentage of the certificates,  the holders of which
     are  required  to  consent to the  amendment,  without  the  consent of the
     holders of the class affected thereby.

Termination

     The obligations created by the pooling and servicing agreement for a series
of certificates will terminate upon the earlier of:

      (1)  the  repurchase of all mortgage  loans or contracts and all property
           acquired by foreclosure of any mortgage loan or contract; and

      (2)  the later of:

o    the maturity or other  liquidation  of the last  mortgage  loan or contract
     subject  thereto  and  the  disposition  of  all  property   acquired  upon
     foreclosure of any mortgage loan or contract; and

o    the payment to the  certificateholders  of all amounts held by the servicer
     and  required  to be paid to  them  pursuant  to the  related  pooling  and
     servicing agreement.

     The obligations  created by the related pooling and servicing  agreement or
trust  agreement  for  a  series  of   certificates   will  terminate  upon  the
distribution to  certificateholders of all amounts required to be distributed to
them pursuant to that pooling and servicing agreement or trust agreement.  In no
event,  however,  will the trust  created  by either  the  related  pooling  and
servicing   agreement  or  the  related  trust  agreement  continue  beyond  the
expiration  of 21 years from the death of the last  survivor of certain  persons
identified in the related  pooling and servicing  agreement or the related trust
agreement.

     For each series of  certificates,  the servicer will give written notice of
termination of the applicable  related pooling and servicing  agreement or trust
agreement of each  certificateholder,  and the final  distribution  will be made
only upon surrender and  cancellation of the certificates at an office or agency
specified in the notice of  termination.  After  termination  of the  applicable
related pooling and servicing  agreement or trust  agreement,  the  certificates
will no longer  accrue  interest,  and the only  obligation  of the  trust  fund
thereafter  will be to pay principal and accrued  interest that was available to
be paid on the date of termination,  upon surrender of the related certificates.
The  trust  fund  and the  certificateholders  will  have no  obligation  to the
purchaser of the assets of the related  trust fund with respect to the assets so
purchased.

                                       46
<PAGE>

     If stated in the related prospectus  supplement,  the pooling and servicing
agreement  for each series of  certificates  will permit,  but not require,  the
depositor or some other person as stated in the related prospectus supplement to
repurchase  from the trust fund for that series all remaining  mortgage loans or
contracts subject to the pooling and servicing agreement at a price specified in
that prospectus supplement. If stated in the related prospectus supplement,  the
repurchase price will be equal to:

      (1)  the aggregate  principal  balance of the mortgage loans  outstanding,
           including  mortgage  loans  that  have  been  foreclosed  upon if the
           Liquidation Proceeds have not yet been distributed,  plus accrued and
           unpaid interest thereon; or

      (2)  the aggregate outstanding principal balance of and accrued and unpaid
           interest  on the  mortgage  loans  outstanding,  plus the fair market
           value  of  any  mortgaged   property   acquired  in   foreclosure  or
           deed-in-lieu of foreclosure if the Liquidation Proceeds in respect of
           that property have not yet been received by or on behalf of the trust
           fund.

The  purchase  price  described  in clause (2) above could result in one or more
classes of  certificates  receiving  less than their  outstanding  principal and
accrued  interest  if the fair  market  value of the  property  is less than the
outstanding principal and accrued interest on the related mortgage loan.

     In the event that the depositor elects to treat the related trust fund as a
REMIC under the Code,  any  repurchase  will be effected in compliance  with the
requirements  of  Section  860F(a)(4)  of the  Code,  in order to  constitute  a
"qualifying liquidation" under the Code. The exercise of any right to repurchase
will effect early retirement of the  certificates of that series,  but the right
so to  repurchase  may be  effected  only on or after  the  aggregate  principal
balance  of the  mortgage  loans or  contracts  for that  series  at the time of
repurchase  is less than a specified  percentage,  not greater  than 10%, of the
aggregate  principal  balance at the Cut-off Date for the series, or on or after
the date set forth in the related prospectus supplement.

                                 Credit Support

     Credit support for a series of certificates  may be provided by one or more
financial  guaranty insurance  policies,  surety bonds or letters of credit, the
issuance of subordinated  classes or subclasses of  certificates,  which may, if
stated in the related prospectus supplement,  be issued in notional amounts, the
provision for shifting  interest  credit  enhancement,  the  establishment  of a
reserve  fund,  the  method  of  Alternative  Credit  Support  specified  in the
applicable  prospectus  supplement,  or any  combination  of the  foregoing,  in
addition  to,  or in lieu  of,  the  insurance  arrangements  set  forth in this
prospectus  under  "Description  of Insurance."  The amount and method of credit
support will be set forth in the prospectus  supplement with respect to a series
of certificates.

Financial Guaranty Insurance Policies; Surety Bonds

     The depositor may obtain one or more financial  guaranty insurance policies
or surety bonds  issued by insurers or other  parties  acceptable  to the rating
agency or agencies rating the securities of a series.  Any such policy or surety
bond  may  provide  payments  to the  holders  of only  one or more  classes  of
securities of a series, as specified in the applicable prospectus supplement.

     Unless  specified  in  the  prospectus  supplement,  a  financial  guaranty
insurance policy or surety bond will be  unconditional  and irrevocable and will
guarantee to holders of the  applicable  securities  that an amount equal to the
full amount of payments due to these  holders will be received by the trustee or
its agent on  behalf of the  holders  for  payment  on each  payment  date.  The
specific terms of any financial guaranty insurance policy or surety bond will be
described  in the  accompanying  prospectus  supplement.  A  financial  guaranty
insurance policy or surety bond may have  limitations  and, in most cases,  will
not  insure the  obligation  of the  sellers or the  depositor  to  purchase  or
substitute for a defective  trust asset and will not guarantee any specific rate
of principal  prepayments or cover specific interest shortfalls.  In most cases,
the insurer  will be  subrogated  to the rights of each holder to the extent the
insurer makes payments under the financial guaranty insurance policy.


                                       47
<PAGE>


Letters of Credit

     The letters of credit,  if any,  with  respect to a series of  certificates
will be issued by the bank or  financial  institution  specified  in the related
prospectus supplement. The maximum obligation of the letter of credit bank under
the  related  letter of  credit  will be to honor  requests  for  payment  in an
aggregate  fixed dollar amount,  net of  unreimbursed  payments  previously made
under the letter of credit,  equal to the percentage of the aggregate  principal
balance on the related Cut-off Date of the mortgage loans or contracts evidenced
by each series  specified in the  prospectus  supplement  for that  series.  The
duration of coverage and the amount and  frequency of any  reduction in coverage
provided by the letter of credit with respect to a series of  certificates  will
be in compliance with the requirements  established by the related Rating Agency
and will be set forth in the  prospectus  supplement  relating to that series of
certificates. The amount available under the letter of credit in all cases shall
be reduced to the extent of the unreimbursed  payments previously made under the
letter of credit.  The obligations of the letter of credit bank under the letter
of credit for each series of  certificates  will expire 30 days after the latest
of the scheduled  final maturity dates of the mortgage loans or contracts in the
related  mortgage pool or contract pool or the  repurchase of all mortgage loans
or contracts in the mortgage pool or contract pool, or on another date specified
in the related prospectus supplement.

     If stated  in the  applicable  prospectus  supplement,  under  the  related
pooling and  servicing  agreement,  the servicer will be required not later than
three  business  days prior to each  distribution  date to  determine  whether a
payment  under the letter of credit will be necessary on the  distribution  date
and will, no later than the third business day prior to that distribution  date,
advise the letter of credit bank and the trustee of its  determination,  stating
the amount of any required  payment.  On the  distribution  date,  the letter of
credit bank will be required  to honor the  trustee's  request for payment in an
amount equal to the lesser of:

o    the remaining amount available under the letter of credit; and

o    the outstanding  principal balances of any Liquidating Loans to be assigned
     on that  distribution  date,  together  with  accrued  and unpaid  interest
     thereon  at the  related  mortgage  rate or annual  percentage  rate to the
     related due date.

The proceeds of payments  under the letter of credit will be deposited  into the
Certificate Account and will be distributed to certificateholders, in the manner
specified  in the related  prospectus  supplement,  on that  distribution  date,
except to the extent of any unreimbursed Advances, servicing compensation due to
the  subservicers and the servicer and other amounts payable to the depositor or
the person or entity named in the applicable prospectus supplement.

     If at any time the  letter of credit  bank makes a payment in the amount of
the full  outstanding  principal  balance and accrued  interest on a Liquidating
Loan,  it will be  entitled  to receive  an  assignment  by the  trustee of that
Liquidating  Loan,  and the  letter  of  credit  bank  will  thereafter  own the
Liquidating  Loan  free  of  any  further  obligation  to  the  trustee  or  the
certificateholders  with respect to that loan.  Payments made to the Certificate
Account by the letter of credit bank under the letter of credit with  respect to
a Liquidating Loan will be reimbursed to the letter of credit bank only from the
proceeds,  net of  liquidation  costs,  of that  Liquidating  Loan.  The  amount
available  under the  letter of credit  will be  increased  to the  extent it is
reimbursed for those payments.

     To the extent the proceeds of liquidation of a Liquidating Loan acquired by
a letter of credit  bank in the  manner  described  in the  preceding  paragraph
exceed the amount of payments  made with respect  thereto,  the letter of credit
bank will be entitled  to retain the  proceeds as  additional  compensation  for
issuance of the letter of credit.

     Prospective  purchasers of  certificates  of a series with respect to which
credit  support is provided by a letter of credit must look to the credit of the
letter of credit  bank,  to the  extent of its  obligations  under the letter of
credit,  in the event of  default  by  mortgagors  or  obligors.  If the  amount
available under the letter of credit is exhausted,  or the letter of credit bank
becomes insolvent, and amounts in the reserve fund, if any, with respect to that
series  are  insufficient  to pay the  entire  amount  of the loss and  still be
maintained  at the level  specified in the related  prospectus  supplement,  the
certificateholders,   in  the  priority  specified  in  the  related  prospectus
supplement,  will  thereafter  bear all risks of loss  resulting from default by
mortgagors or obligors, including losses not covered by insurance or


                                       48
<PAGE>

     Alternative  Credit  Support,  and must look  primarily to the value of the
properties  securing  defaulted  mortgage loans or contracts for recovery of the
outstanding principal and unpaid interest.

Subordinated Certificates

     To the extent of the  Subordinated  Amount as specified  in the  applicable
prospectus  supplement,  credit support may be provided by the  subordination of
the rights of the holders of one or more classes or subclasses  of  certificates
to receive distributions with respect to the mortgage loans in the mortgage pool
or contracts  in the  contract  pool  underlying  that series,  to the rights of
senior  certificateholders  or holders of one or more classes or  subclasses  of
subordinated  certificates  of that series to receive  distributions.  In such a
case,  credit  support may also be provided  by the  establishment  of a reserve
fund, as described in "--Reserve Fund." The Subordinated  Amount will be reduced
by an amount equal to the aggregate amount of Realized Losses that have occurred
in the  mortgage  pool or contract  pool.  If stated in the  related  prospectus
supplement,  the Subordinated Amount will decline over time in accordance with a
schedule which will also be set forth in the related prospectus supplement.

Shifting Interest

     If stated in the  prospectus  supplement for a series of  certificates  for
which credit  enhancement is provided by shifting  interest as described in this
section,  the rights of the holders of subordinated  certificates of that series
to receive  distributions with respect to the mortgage loans or contracts in the
related  trust fund will be  subordinated  to the right of the holders of senior
certificates of that series to receive  distributions to the extent described in
that prospectus  supplement.  This subordination  feature 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 senior certificates  against losses
due to mortgagor defaults.

     The protection  afforded to the holders of senior  certificates of a series
by the shifting interest  subordination feature will be effected by distributing
to the holders of senior certificates a disproportionately greater percentage of
prepayments of principal on the related  mortgage  loans,  contracts or mortgage
loans underlying the related Mortgage  Certificates.  The initial  percentage of
principal  to be  received by the senior  certificates  for a series will be the
percentage  specified in the related prospectus  supplement and will decrease in
accordance  with the  schedule  and  subject  to the  conditions  stated in that
prospectus  supplement.  This  disproportionate  distribution  of prepayments of
principal on the related mortgage loans,  contracts or mortgage loans underlying
the  related  Mortgage  Certificates  will have the effect of  accelerating  the
amortization of the senior certificates while increasing the respective interest
of the  subordinated  certificates  in  the  mortgage  pool  or  contract  pool.
Increasing the respective interest of the subordinated  certificates relative to
that of the senior  certificates is intended to preserve the availability of the
benefits of the subordination provided by the subordinated certificates.

Overcollateralization

     If stated in the applicable prospectus supplement,  interest collections on
the mortgage loans or contracts may exceed  interest  payments on the securities
for the related distribution date. To the extent such excess interest is applied
as  principal  payments  on the  securities,  the  effect  will be to reduce the
principal balance of the securities  relative to the outstanding  balance of the
mortgage loan or contract, thereby creating overcollateralization and additional
protection  to  the  securityholders,  if and to  the  extent  specified  in the
accompanying prospectus supplement.

Swaps and Yield Supplement Agreements

     The trustee on behalf of the trust may enter into  interest  rate swaps and
related caps, floors and collars to minimize the risk to  certificateholders  of
adverse  changes in interest  rates,  and other yield  supplement  agreements or
similar yield  maintenance  arrangements  that do not involve swap agreements or
other notional principal contracts.

     An  interest  rate swap is an  agreement  between two parties to exchange a
stream of interest  payments on an agreed  hypothetical or "notional"  principal
amount.  No  principal  amount is  exchanged  between the  counterparties  to an
interest rate swap. In the typical swap, one party agrees to pay a fixed rate on
a notional principal amount,

                                       49
<PAGE>

while the  counterparty  pays a  floating  rate  based on one or more  reference
interest  rates  including  the  London  Interbank  Offered  Rate or,  LIBOR,  a
specified  bank's prime rate or U.S.  Treasury  Bill rates.  Interest rate swaps
also permit  counterparties  to exchange a floating rate obligation based on one
reference  interest rate (such as LIBOR) for a floating rate obligation based on
another referenced interest rate (such as U.S. Treasury Bill rates).

     The swap market has grown  substantially in recent years with a significant
number of banks and financial  service  firms acting both as  principals  and as
agents utilizing  standardized swap documentation.  Caps, floors and collars are
more recent innovations, and they are less liquid than other swaps.

     Yield supplement  agreements may be entered into to supplement the interest
rate or rates on one or more classes of the securities of any series.

     There  can be no  assurance  that the trust  will be able to enter  into or
offset swaps or enter into yield  supplement  agreements at any specific time or
at prices or on other terms that are  advantageous.  In  addition,  although the
terms of the swaps and yield  supplement  agreements may provide for termination
under some circumstances,  there can be no assurance that the trust will be able
to terminate a swap or yield supplement  agreement when it would be economically
advantageous to the trust to do so.

Purchase Obligations

     Some of the mortgage loans or contracts and classes of  certificates of any
series, as specified in the related prospectus  supplement,  may be subject to a
purchase  obligation.  The terms and  conditions  of each  purchase  obligation,
including the purchase price, timing and payment procedure, will be described in
the  related  prospectus  supplement.  A  purchase  obligation  with  respect to
mortgage loans or contracts may apply to the related mortgage loans or contracts
or to the related  certificates.  Each purchase  obligation  may be a secured or
unsecured  obligation  of its  provider,  which  may  include  a bank  or  other
financial  institution or an insurance company. Each purchase obligation will be
evidenced  by an  instrument  delivered  to the  trustee  for the benefit of the
applicable  certificateholders  of the related series.  Each purchase obligation
with  respect to  mortgage  loans or  contracts  will be  payable  solely to the
trustee for the benefit of the  certificateholders  of the related series, or if
stated  in the  related  prospectus  supplement,  to some  other  person.  Other
purchase obligations may be payable to the trustee or directly to the holders of
the certificates to which the obligations relate.

Reserve Fund

     If stated in the related prospectus supplement, credit support with respect
to a series of certificates may be provided by the establishment and maintenance
with the trustee,  in trust, of a reserve fund for that series.  Generally,  the
reserve  fund  for a series  will not be  included  in the  trust  fund for that
series,  however if stated in the related prospectus supplement the reserve fund
for a series may be included in the trust fund for that series. The reserve fund
for each series will be created by the depositor and shall be funded by:

o    the retention by the servicer of certain  payments on the mortgage loans or
     contracts;

o    the deposit with the trustee, in escrow, by the depositor of a subordinated
     pool of mortgage loans or manufactured  housing conditional sales contracts
     and installment loan agreements with the aggregate principal balance, as of
     the related Cut-off Date, set forth in the related prospectus supplement;

o    an Initial Deposit;

o    any combination of the foregoing; or

o    some other manner as specified in the related prospectus supplement.

     Following the initial issuance of the certificates of a series and until
the balance of the reserve fund first  equals or exceeds the  Required  Reserve,
the  servicer  will retain  specified  distributions  on the  mortgage  loans or
contracts,  and/or on the mortgage  loans or contracts in a  subordinated  pool,
otherwise distributable to the holders of subordinated  certificates and deposit
those amounts in the reserve  fund.  After the amounts in the reserve fund for a
series first equal or exceed the applicable Required Reserve,  the servicer will
retain such  distributions  and deposit so

                                       50
<PAGE>

much of  those  amounts  in the  reserve  fund as may be  necessary,  after  the
application of distributions to amounts due and unpaid on the certificates or on
the  certificates  of that series to which the  applicable  class or subclass of
subordinated certificates are subordinated and the reimbursement of unreimbursed
Advances and liquidation  expenses, to maintain the reserve fund at the Required
Reserve. The balance in the reserve fund in excess of the Required Reserve shall
be paid to the applicable class or subclass of subordinated certificates,  or to
another  specified  person or  entity,  as set forth in the  related  prospectus
supplement,  and shall be  unavailable  thereafter  for future  distribution  to
certificateholders  of any class. The prospectus supplement for each series will
set forth the amount of the Required  Reserve  applicable from time to time. The
Required  Reserve may decline over time in accordance with a schedule which will
also be set forth in the related prospectus supplement.

     Amounts  held in the  reserve  fund for a  series  from  time to time  will
continue  to be the  property  of  the  subordinated  certificateholders  of the
classes or  subclasses  specified  in the related  prospectus  supplement  until
withdrawn from the reserve fund and  transferred to the  Certificate  Account as
described  below.  If on any  distribution  date the  amount in the  Certificate
Account  available to be applied to distributions on the senior  certificates of
that series, after giving effect to any Advances made by the subservicers or the
servicer on the related  distribution  date, is less than the amount required to
be distributed to the senior  certificateholders  on that distribution date, the
servicer will  withdraw  from the reserve fund and deposit into the  Certificate
Account the lesser of:

o    the entire amount on deposit in the reserve fund available for distribution
     to the senior certificateholders, which amount will not in any event exceed
     the Required Reserve; or

o    the amount  necessary  to  increase  the funds in the  Certificate  Account
     eligible  for  distribution  to  the  senior   certificateholders  on  that
     distribution  date to the amount  required to be  distributed to the senior
     certificateholders on that distribution date;

provided,  however,  that in no event  will any amount  representing  investment
earnings on amounts held in the reserve fund be transferred into the Certificate
Account  or  otherwise  used  in any  manner  for  the  benefit  of  the  senior
certificateholders.

     Generally,  whenever  amounts on deposit in the reserve  fund are less than
the Required Reserve, holders of the subordinated certificates of the applicable
class or  subclass  will not  receive  any  distributions  with  respect  to the
mortgage  loans or  contracts  other  than  amounts  attributable  to any income
resulting from investment of the reserve fund as described  below,  however,  if
stated  in the  related  prospectus  supplement,  holders  of  the  subordinated
certificates of the applicable class or subclass may receive  distributions with
respect  to the  mortgage  loans or  contracts  when  amounts  on deposit in the
reserve fund are less than the Required Reserve.  If specified in the applicable
prospectus  supplement,  whether or not amounts on deposit in the  reserve  fund
exceed  the  Required  Reserve  on any  distribution  date,  the  holders of the
subordinated  certificates  of the applicable  class or subclass are entitled to
receive from the Certificate Account their share of the proceeds of any mortgage
loan or contract,  or any property  acquired in respect thereof,  repurchased by
reason of defective  documentation or the breach of a representation or warranty
pursuant to the pooling and servicing agreement.

     If  specified  in the  applicable  prospectus  supplement,  amounts  in the
reserve fund shall be applied in the following order:

(1)  to the  reimbursement  of  Advances  determined  by the  servicer  and  the
     subservicers to be otherwise unrecoverable, other than Advances of interest
     in connection with prepayments in full,  repurchases and liquidations,  and
     the reimbursement of liquidation  expenses incurred by the subservicers and
     the  servicer  if  sufficient  funds for  reimbursement  are not  otherwise
     available in the related Servicing Accounts and Certificate Account;

(2)  to the payment to the holders of the senior  certificates of that series of
     amounts  distributable to them on the related  distribution date in respect
     of scheduled payments of principal and interest due on the related due date
     to the extent  that  sufficient  funds in the  Certificate  Account are not
     available therefor; and

(3)  to the payment to the holders of the senior  certificates of that series of
     the principal  balance or purchase price, as applicable,  of mortgage loans
     or contracts repurchased, liquidated or foreclosed during the period ending
     on the day prior to the due date to which  that  distribution  relates  and


                                       51
<PAGE>


     interest  thereon at the  related  Pass-Through  Rate,  to the extent  that
     sufficient funds in the Certificate Account are not available therefor.

     Amounts in the reserve  fund in excess of the Required  Reserve,  including
any investment income on amounts in the reserve fund, as set forth below,  shall
then be  released to the holders of the  subordinated  certificates,  or to some
other person as is specified in the  applicable  prospectus  supplement,  as set
forth above.

     Funds in the reserve fund for a series shall be invested as provided in the
related pooling and servicing agreement in Eligible Investments. The earnings on
those  investments  will be withdrawn and paid to the holders of the  applicable
class  or  subclass  of  subordinated  certificates  in  accordance  with  their
respective  interests  in the  reserve  fund in the  priority  specified  in the
related  prospectus  supplement.  Investment  income in the reserve  fund is not
available for  distribution  to the holders of the senior  certificates  of that
series or  otherwise  subject  to any  claims or  rights of the  holders  of the
applicable class or subclass of senior  certificates.  Eligible  Investments for
monies  deposited  in the  reserve  fund will be  specified  in the  pooling and
servicing  agreement  for a series of  certificates  for which a reserve fund is
established  and  generally  will be limited to  investments  acceptable  to the
related Rating Agency from time to time as being consistent with its outstanding
rating of the certificates. With respect to a reserve fund, Eligible Investments
will be limited,  however,  to obligations or securities  that mature at various
time  periods  according  to a schedule  in the related  pooling  and  servicing
agreement  based on the current  balance of the reserve  fund at the time of the
investment or the contractual commitment providing for the investment.

     The time  necessary  for the reserve fund of a series to reach and maintain
the applicable  Required  Reserve at any time after the initial  issuance of the
certificates of that series and the  availability of amounts in the reserve fund
for  distributions  on  the  related   certificates  will  be  affected  by  the
delinquency,  foreclosure  and  prepayment  experience of the mortgage  loans or
contracts  in the  related  trust  fund  and/or  in the  subordinated  pool  and
therefore cannot be accurately predicted.

Performance Bond

     If  stated  in the  related  prospectus  supplement,  the  servicer  may be
required to obtain a  performance  bond that would  provide a  guarantee  of the
performance by the servicer of one or more of its obligations  under the related
pooling and servicing agreement,  including its obligation to advance delinquent
installments  of principal  and interest on mortgage  loans or contracts and its
obligation to repurchase mortgage loans or contracts in the event of a breach by
the servicer of a  representation  or warranty  contained in the related pooling
and servicing agreement.  In the event that the outstanding credit rating of the
obligor of the  performance  bond is lowered by the related Rating Agency,  with
the result that the outstanding  rating on the certificates  would be reduced by
the related Rating Agency,  the servicer will be required to secure a substitute
performance  bond issued by an entity with a rating  sufficient  to maintain the
outstanding  rating on the  certificates  or to deposit  and  maintain  with the
trustee cash in the amount specified in the applicable prospectus supplement.

                            Description of Insurance

     To the extent that the applicable  prospectus supplement does not expressly
provide for a form of credit support  specified above or for Alternative  Credit
Support in lieu of some or all of the insurance  mentioned  below, the following
paragraphs on insurance  shall apply with respect to the mortgage loans included
in the related  trust fund.  To the extent  described in the related  prospectus
supplement,  each manufactured home that secures a contract will be covered by a
standard  hazard  insurance  policy and other insurance  policies.  Any material
changes in insurance from the description that follows or the description of any
Alternative  Credit  Support  will be set  forth  in the  applicable  prospectus
supplement.

Primary Mortgage Insurance Policies

     To the extent specified in the related prospectus supplement,  each pooling
and servicing agreement will require the subservicer to cause a primary mortgage
insurance  policy to be maintained in full force and effect with respect to each
mortgage  loan  that is  secured  by a  single  family  property  requiring  the
insurance  and to act on behalf  of the  related  insured  with  respect  to all
actions required to be taken by the insured under each primary mortgage

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<PAGE>

insurance  policy.  Generally,  a primary  mortgage  insurance policy covers the
amount of the  unpaid  principal  balance of the  mortgage  loan over 75% of the
value of the  mortgaged  property at  origination.  Primary  mortgage  insurance
policies are generally  permitted or required to be  terminated  when the unpaid
principal  balance  of the  mortgage  loan is reduced to 80% of the value of the
mortgaged  property at the time of  origination.  Any primary  credit  insurance
policies  relating to the contracts  underlying a series of certificates will be
described in the related prospectus supplement.

     The  amount of a claim for  benefits  under a  primary  mortgage  insurance
policy  covering a mortgage  loan in the related  mortgage pool  generally  will
consist of the  insured  portion of the unpaid  principal  amount of the covered
mortgage  loan and accrued and unpaid  interest  thereon  and  reimbursement  of
certain expenses, less:

o    all rents or other payments  collected or received by the related  insured,
     other than the  proceeds of hazard  insurance,  that are derived from or in
     any way related to the mortgaged property;

o    hazard  insurance  proceeds in excess of the amount required to restore the
     mortgaged  property  and which have not been  applied to the payment of the
     related mortgage loan;

o    amounts expended but not approved by the primary mortgage insurer;

o    claim payments previously made by the primary mortgage insurer; and

o    unpaid premiums.

     As  conditions  precedent  to the filing of or  payment of a claim  under a
primary  mortgage  insurance  policy  covering  a mortgage  loan in the  related
mortgage pool, the related  insured  generally will be required to, in the event
of default by the mortgagor:

      (1)  advance or discharge:

           (A)  all hazard insurance premiums; and

           (B)  as  necessary  and  approved in advance by the primary  mortgage
                insurer:

o    real estate property taxes;

o    all  expenses  required  to  preserve,  repair  and  prevent  waste  to the
     mortgaged  property so as to maintain the mortgaged property in at least as
     good a condition as existed at the effective date of such primary  mortgage
     insurance policy, ordinary wear and tear excepted;

o    property sales expenses;

o    any outstanding liens, as defined in the related primary mortgage insurance
     policy, on the mortgaged property; and

o    foreclosure costs, including court costs and reasonable attorneys' fees;

      (2)  in the event of a physical loss or damage to the mortgaged  property,
           have the mortgaged property restored and repaired to at least as good
           a condition as existed at the effective  date of the related  primary
           mortgage insurance policy, ordinary wear and tear excepted; and

      (3)  tender to the primary mortgage insurer good and merchantable title to
           and possession of the mortgaged property.

     Other provisions and conditions of each primary  mortgage  insurance policy
covering a mortgage  loan in the related  mortgage pool  generally  will provide
that:

      (1)  no change  may be made in the  terms of the  related  mortgage  loan
           without the consent of the primary mortgage insurer;

      (2)  written notice must be given to the primary  mortgage  insurer within
           10 days after the related  insured  becomes aware that a mortgagor is
           delinquent  in the  payment  of a sum equal to the  aggregate  of two
           scheduled  monthly  payments due under the related  mortgage  loan or
           that  any

                                       53
<PAGE>

          proceedings  affecting  the  mortgagor's  interest  in  the  mortgaged
          property securing the mortgage loan have commenced, and thereafter the
          insured must report monthly to the primary mortgage insurer the status
          of any mortgage loan until the mortgage loan is brought current, those
          proceedings are terminated or a claim is filed;

      (3)  the primary  mortgage  insurer  will have the right to  purchase  the
           related  mortgage loan, at any time subsequent to the 10 days' notice
           described in (2) above and prior to the  commencement  of foreclosure
           proceedings,  at a price equal to the unpaid  principal amount of the
           mortgage  loan,  plus accrued and unpaid  interest  and  reimbursable
           amounts expended by the related insured for the real estate taxes and
           fire and extended coverage  insurance on the mortgaged property for a
           period  not  exceeding  12  months,  and  less  the sum of any  claim
           previously paid under the primary  mortgage  insurance policy and any
           due and unpaid premiums with respect to that policy;

      (4)  the insured must commence  proceedings at certain times  specified in
           the  primary  mortgage  insurance  policy and  diligently  proceed to
           obtain good and merchantable title to and possession of the mortgaged
           property;

      (5)  the related insured must notify the primary  mortgage  insurer of the
           price  specified  in (3) above at least 15 days  prior to the sale of
           the mortgaged property by foreclosure, and bid that amount unless the
           primary mortgage insurer specifies a lower or higher amount; and

      (6)  the related insured may accept a conveyance of the mortgaged property
           in lieu of foreclosure  with written approval of the primary mortgage
           insurer  provided  the  ability of the  insured  to assign  specified
           rights to the primary  mortgage  insurer are not thereby  impaired or
           the specified  rights of the primary mortgage insurer are not thereby
           adversely affected.

     Any rents or other  payments  collected or received by the related  insured
which are derived from or are in any way related to the mortgaged  property will
be deducted from any claim payment.

FHA Insurance and VA Guarantees

     The  FHA  is  responsible  for  administering   various  federal  programs,
including  mortgage  insurance,  authorized  under the National  Housing Act, as
amended,  and the  United  States  Housing  Act of  1937,  as  amended.  Any FHA
insurance  or VA  guarantees  relating  to  contracts  underlying  a  series  of
certificates will be described in the related prospectus supplement.

     The insurance  premiums for FHA Loans are collected by HUD approved lenders
or by the  servicers of the FHA Loans and are paid to the FHA.  The  regulations
governing FHA single-family  mortgage  insurance programs provide that insurance
benefits  are  payable  either  upon   foreclosure,   or  other  acquisition  of
possession,  and conveyance of the mortgaged  premises to HUD or upon assignment
of the  defaulted  FHA Loan to HUD.  With respect to a defaulted  FHA Loan,  the
servicer of that FHA Loan will be limited in its ability to initiate foreclosure
proceedings.  When it is determined, either by the servicer or HUD, that default
was caused by circumstances beyond the mortgagor's control, the servicer will be
expected to make an effort to avoid foreclosure by entering,  if feasible,  into
one of a number of  available  forms of  forbearance  plans with the  mortgagor.
Forbearance plans may involve the reduction or suspension of scheduled  mortgage
payments  for a specified  period,  with  payments to be made upon or before the
maturity  date of the  mortgage,  or the  recasting  of  payments  due under the
mortgage  up to or beyond the  scheduled  maturity  date.  In  addition,  when a
default caused by circumstances beyond the mortgagor's control is accompanied by
certain  other  criteria,  HUD may  provide  relief  by making  payments  to the
servicer of the related mortgage loan in partial or full satisfaction of amounts
due  thereunder,  which payments are to be repaid by the mortgagor to HUD, or by
accepting  assignment  of the  mortgage  loan from the  servicer.  With  certain
exceptions,  at least  three full  monthly  installments  must be due and unpaid
under the mortgage  loan, and HUD must have rejected any request for relief from
the mortgagor before the servicer may initiate foreclosure proceedings.

     HUD has the option,  in most cases,  to pay insurance  claims in cash or in
debentures issued by HUD.  Presently,  claims are being paid in cash, and claims
have  not  been  paid  in  debentures  since  1965.  HUD  debentures  issued  in
satisfaction  of FHA  insurance  claims  bear  interest  at the  applicable  HUD
debenture  interest  rate. The servicer of each FHA Loan in a mortgage pool will
be obligated to purchase any debenture issued in satisfaction of a defaulted FHA
Loan serviced by it for an amount equal to the principal amount of the FHA Loan.

                                       54
<PAGE>

     The amount of insurance  benefits generally paid by the FHA is equal to the
entire unpaid principal balance of the defaulted FHA Loan, adjusted to reimburse
the  servicer  of that FHA Loan for  certain  costs and  expenses  and to deduct
certain  amounts  received or  retained  by the  servicer  after  default.  When
entitlement to insurance benefits results from foreclosure, or other acquisition
of possession, and conveyance to HUD, the related servicer is compensated for no
more than two-thirds of its foreclosure  costs,  and is compensated for interest
accrued  and  unpaid  prior to that date in  general  only to the  extent it was
allowed  pursuant to a forbearance  plan approved by HUD.  When  entitlement  to
insurance benefits results from assignment of the FHA Loan to HUD, the insurance
payment  includes  full  compensation  for  interest  accrued  and unpaid to the
assignment date. The insurance payment itself,  upon foreclosure of an FHA Loan,
bears  interest  from a date 30 days  after the  mortgagor's  first  uncorrected
failure to perform any  obligation  or make any  payment due under the  mortgage
loan and, upon assignment,  from the date of assignment,  to the date of payment
of the  claim,  in each case at the same  interest  rate as the  applicable  HUD
debenture interest rate as described above.

     The maximum  guarantee  that may be issued by the VA under a VA Loan is 50%
of the principal  amount of the VA Loan if the principal  amount of the mortgage
loan is $45,000 or less,  the lesser of $36,000 and 40% if the principal  amount
of the VA Loan if the  principal  amount of that VA Loan is greater than $45,000
but less than or equal to  $144,000,  and the lesser of  $46,000  and 25% of the
principal  amount of the mortgage loan if the  principal  amount of the mortgage
loan is greater than  $144,000.  The  liability  on the  guarantee is reduced or
increased pro rata with any reduction or increase in the amount of indebtedness,
but in no event will the amount  payable on the  guarantee  exceed the amount of
the  original  guarantee.  The VA may, at its option and  without  regard to the
guarantee, make full payment to a mortgage holder of unsatisfied indebtedness on
a mortgage upon its assignment to the VA.

     With respect to a defaulted VA Loan,  the servicer is,  absent  exceptional
circumstances,  authorized to announce its intention to foreclose  only when the
default has continued for three months.  Generally, a claim for the guarantee is
submitted after liquidation of the mortgaged property.

     The amount  payable  under the guarantee  will be the  percentage of the VA
Loan  originally  guaranteed  applied  to  indebtedness  outstanding  as of  the
applicable date of computation  specified in the VA regulations.  Payments under
the  guarantee  will be equal to the  unpaid  principal  amount  of the VA Loan,
interest accrued on the unpaid balance of the VA Loan to the appropriate date of
computation and limited expenses of the mortgagee,  but in each case only to the
extent that those amounts have not been  recovered  through  liquidation  of the
mortgaged  property.  The amount  payable  under the  guarantee  may in no event
exceed the amount of the original guarantee.

Standard Hazard Insurance Policies on Mortgage Loans

     The pooling and  servicing  agreement  will  require that  standard  hazard
insurance  policies  covering the mortgage  loans in a mortgage pool provide for
coverage at least equal to the applicable  state standard form of fire insurance
policy  with  extended  coverage.  In  general,  the  standard  form of fire and
extended  coverage  policy 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 mortgage loans will be  underwritten by
different  insurers  and will  cover  mortgaged  properties  located  in various
states, those 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  standard  hazard  insurance  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,  theft and, in certain cases,  vandalism.
The foregoing list is merely  indicative of certain kinds of uninsured risks and
is not intended to be all-inclusive.

     The  standard  hazard  insurance  policies  covering  mortgaged  properties
securing mortgage loans typically will contain a "coinsurance"  clause which, in
effect,  will require the insured at all times to carry insurance of a specified
percentage,  generally  80%  to  90%,  of  the  full  replacement  value  of the
dwellings,  structures and other improvements on the mortgaged property in order
to recover the full amount of any partial loss. If the insured's

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<PAGE>

coverage  falls below this specified  percentage,  the  coinsurance  clause will
provide  that the  insurer's  liability  in the event of  partial  loss will not
exceed the greater of:

o    the actual cash value, the replacement cost less physical depreciation,  of
     the dwellings, structures and other improvements damaged or destroyed; or

o    the  proportion of the loss,  without  deduction for  depreciation,  as the
     amount of insurance  carried bears to the specified  percentage of the full
     replacement   cost  of  the  related   dwellings,   structures   and  other
     improvements.

     The depositor  will not require that a standard  hazard or flood  insurance
policy be maintained on the  Cooperative  Dwelling  relating to any  Cooperative
Loan. Generally, the Cooperative itself is responsible for maintenance of hazard
insurance for the property owned by the Cooperative and the  tenant-stockholders
of that Cooperative do not maintain individual hazard insurance policies. To the
extent,  however,  that a Cooperative and the related  borrower on a Cooperative
Loan do not  maintain  insurance  or do not  maintain  adequate  coverage or any
insurance  proceeds are not applied to the restoration of damaged property,  any
damage to that borrower's  Cooperative  Dwelling or that Cooperative's  building
could  significantly  reduce the value of the  collateral  securing  the related
Cooperative Loan to the extent not covered by other credit support.

     Any losses incurred with respect to mortgage loans due to uninsured  risks,
including  earthquakes,  mudflows  and,  with  respect to  mortgaged  properties
located in areas other than HUD designated flood areas,  floods, or insufficient
hazard  insurance  proceeds  and any  hazard  losses  incurred  with  respect to
Cooperative Loans could affect distributions to the certificateholders.

     With respect to mortgage  loans secured by commercial  property,  Mixed-Use
Property and multifamily property,  certain additional insurance policies may be
required;  for  example,  general  liability  insurance  for  bodily  injury and
property  damage,  steam boiler  coverage where a steam boiler or other pressure
vessel is in operation,  business interruption insurance and rent loss insurance
to  cover  income  losses  following  damage  or  destruction  of the  mortgaged
property.  The related prospectus supplement will specify the required types and
amounts of additional insurance that may be required in connection with mortgage
loans  secured  by  commercial  property,  Mixed-Use  Property  and  multifamily
property and will describe the general terms of such insurance and conditions to
payment thereunder.

Standard Hazard Insurance Policies on the Manufactured Homes

     The terms of the pooling and servicing  agreement will require the servicer
to cause to be  maintained  with respect to each  contract one or more  standard
hazard insurance  policies which provide,  at a minimum,  the same coverage as a
standard form file and extended coverage  insurance policy that is customary for
manufactured housing,  issued by a company authorized to issue those policies in
the state in which the manufactured  home is located,  and in an amount which is
not less  than the  maximum  insurable  value of that  manufactured  home or the
principal  balance due from the obligor on the related  contract,  whichever  is
less; provided,  however,  that the amount of coverage provided by each standard
hazard  insurance  policy shall be  sufficient to avoid the  application  of any
coinsurance  clause contained in the related  standard hazard insurance  policy.
When a  manufactured  home's  location  was, at the time of  origination  of the
related  contract,  within a federally  designated flood area, the servicer also
shall cause such flood  insurance to be  maintained,  which coverage shall be at
least equal to the minimum  amount  specified in the preceding  sentence or such
lesser  amount as may be available  under the federal flood  insurance  program.
Each standard  hazard  insurance  policy caused to be maintained by the servicer
shall  contain a standard  loss payee  clause in favor of the  servicer  and its
successors and assigns.  If any obligor is in default in the payment of premiums
on its standard hazard insurance policy or policies,  the servicer shall pay the
premiums  out of its own  funds,  and  may add  separately  the  premium  to the
obligor's obligation as provided by the contract, but may not add the premium to
the remaining principal balance of the contract.

     The servicer may maintain,  in lieu of causing  individual  standard hazard
insurance  policies to be maintained with respect to each manufactured home, and
shall  maintain,  to the extent that the related  contract  does not require the
obligor to  maintain a standard  hazard  insurance  policy  with  respect to the
related  manufactured  home,  one or more blanket  insurance  policies  covering
losses on the obligor's interest in the contracts resulting from


                                       56
<PAGE>

the absence or insufficiency of individual  standard hazard insurance  policies.
Any blanket policy shall be  substantially in the form and in the amount carried
by the  servicer  as of the date of the  pooling and  servicing  agreement.  The
servicer  shall pay the  premium for the policy on the basis  described  in that
policy and shall pay any  deductible  amount  with  respect to claims  under the
policy relating to the contracts.  If the insurer  thereunder  shall cease to be
acceptable  to the servicer,  the servicer  shall  exercise its best  reasonable
efforts to obtain from another  insurer a replacement  policy  comparable to the
original policy.

     If the servicer shall have repossessed a manufactured home on behalf of the
trustee, the servicer shall either:

o    maintain hazard  insurance with respect to the related  manufactured  home,
     which expenses will be  reimbursable to the servicer out of the trust fund;
     or

o    indemnify the trustee against any damage to the related  manufactured  home
     prior to resale or other disposition.

Pool Insurance Policies

     If stated in the related prospectus supplement,  the servicer will obtain a
pool  insurance  policy  for a mortgage  pool  underlying  certificates  of that
series.  The pool  insurance  policy will be issued by the pool insurer named in
the applicable prospectus supplement.  Each pool insurance policy will cover any
loss,  subject to the limitations  described  below, by reason of default to the
extent  the  related  mortgage  loan  is not  covered  by any  primary  mortgage
insurance  policy,  FHA  insurance  or VA  guarantee.  The  amount  of the  pool
insurance  policy,  if any,  with  respect to a series will be  specified in the
related prospectus supplement.  A pool insurance policy,  however, will not be a
blanket  policy  against loss,  because  claims  thereunder may only be made for
particular  defaulted  mortgage  loans and only  upon  satisfaction  of  certain
conditions  precedent  described below. Any pool insurance  policies relating to
the contracts will be described in the related prospectus supplement.

     The pool  insurance  policy  generally  will  provide  that as a  condition
precedent to the payment of any claim the insured will be required

      (1)  to advance  hazard  insurance  premiums  on the  mortgaged  property
           securing the defaulted mortgage loan;

      (2)  to  advance,  as  necessary  and  approved  in  advance  by the pool
           insurer,

o    real estate property taxes;

o    all expenses  required to preserve and repair the  mortgaged  property,  to
     protect the mortgaged  property from waste, so that the mortgaged  property
     is in at least as good a  condition  as  existed  on the  date  upon  which
     coverage  under the pool  insurance  policy  with  respect  to the  related
     mortgaged property first became effective, ordinary wear and tear excepted;

o    property sales expenses;

o    any outstanding liens on the mortgaged property; and

o    foreclosure costs including court costs and reasonable attorneys' fees; and

      (3)  if there has been physical loss or damage to the mortgaged  property,
           to restore the mortgaged  property to its condition,  reasonable wear
           and tear excepted, as of the issue date of the pool insurance policy.

It also will be a condition precedent to the payment of any claim under the pool
insurance policy that the related insured maintain a primary mortgage  insurance
policy that is  acceptable  to the pool insurer on all mortgage  loans that have
loan-to-value  ratios at the time of origination in excess of 80%. FHA insurance
and VA  guarantees  will be  considered  to be an  acceptable  primary  mortgage
insurance policy under the pool insurance policy.

                                       57
<PAGE>

     Assuming  satisfaction of these  conditions,  the related pool insurer will
pay to the related  insured the amount of loss,  but not more than the remaining
amount of coverage under the pool insurance policy determined as follows:

(1)  the amount of the unpaid  principal  balance of the related  mortgage  loan
     immediately prior to the Approved Sale of the mortgaged property;

(2)  the amount of the accumulated  unpaid interest on the related mortgage loan
     to the date of claim settlement at the applicable mortgage rate; and

(3)  advances as described above, less:

o    all  rents or  other  payments,  excluding  proceeds  of fire and  extended
     coverage insurance, collected or received by the related insured, which are
     derived from or in any way related to the mortgaged property;

o    amounts paid under applicable fire and extended coverage policies which are
     in excess of the cost of restoring and repairing the mortgaged property and
     which have not been applied to the payment of the related mortgage loan;

o    any claims  payments  previously  made by the pool  insurer on the  related
     mortgage loan;

o    due and unpaid premiums payable with respect to the pool insurance  policy;
     and

o    all claim payments  received by the related insured pursuant to any primary
     mortgage insurance policy.

     The related pool insurer must be provided with good and merchantable  title
to the mortgaged property as a condition  precedent to the payment of any amount
of a claim  for  benefits  under a primary  mortgage  insurance  policy.  If any
mortgaged  property  securing  a  defaulted  mortgage  loan is  damaged  and the
proceeds,  if any,  from the related  standard  hazard  insurance  policy or the
applicable  special  hazard  insurance  policy are  insufficient  to restore the
mortgaged  property to a condition  sufficient to permit recovery under the pool
insurance  policy,  the servicer or the subservicer of the related mortgage loan
will not be required  to expend its own funds to restore  the damaged  mortgaged
property unless it is determined:

o    that the restoration  will increase the proceeds to the  certificateholders
     of  the  related  series  on  liquidation  of  the  mortgage  loan,   after
     reimbursement  of the expenses of the servicer or the  subservicer,  as the
     case may be; and

o    that the expenses  will be  recoverable  by it through  payments  under the
     financial  guaranty  insurance policy,  surety bond or letter of credit, if
     any, with respect to that series, Liquidation Proceeds, Insurance Proceeds,
     amounts in the reserve  fund,  if any, or  payments  under any  Alternative
     Credit Support, if any, with respect to that series.

     No pool insurance policy will insure,  and many primary mortgage  insurance
policies may not insure,  against loss sustained by reason of a default  arising
from, among other things:

      (1)  fraud or  negligence  in the  origination  or servicing of a mortgage
           loan, including  misrepresentation by the mortgagor, any unaffiliated
           seller,  the originator or other persons  involved in the origination
           thereof; or

      (2)  the  exercise by the  related  insured of a  "due-on-sale"  clause or
           other similar provision in the mortgage loan.

     Depending upon the nature of the event, a breach of representation  made by
the  depositor  or a  seller  may  also  have  occurred.  Such a  breach,  if it
materially and adversely affects the interests of the certificateholders of that
series and cannot be cured,  would give rise to a repurchase  obligation  on the
part of the  depositor  or seller  as more  fully  described  under  "The  Trust
Fund--Mortgage   Loan    Program--Representations   by   Unaffiliated   Sellers;
Repurchases"  and  "Description  of  the  Certificates--Assignment  of  Mortgage
Loans."

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<PAGE>

     The original  amount of coverage  under the pool  insurance  policy will be
reduced over the life of the certificates of the related series by the aggregate
dollar amount of claims paid less the  aggregate of the net amounts  realized by
the pool insurer upon disposition of all foreclosed mortgaged properties covered
thereby.

     The amount of claims paid will  include  certain  expenses  incurred by the
servicer or by the subservicer of the defaulted mortgage loan as well as accrued
interest  on  delinquent  mortgage  loans to the date of  payment  of the claim.
Accordingly,  if aggregate net claims paid under a pool  insurance  policy reach
the original policy limit,  coverage under the pool insurance  policy will lapse
and any further losses will be borne by the holders of the  certificates of that
series.  In  addition,  unless the  servicer  or the related  subservicer  could
determine  that an Advance in respect  of a  delinquent  mortgage  loan would be
recoverable to it from the proceeds of the  liquidation of that mortgage loan or
otherwise,  neither the  subservicer nor the servicer would be obligated to make
an Advance respecting any delinquency, since the Advance would not be ultimately
recoverable  to it from  either  the pool  insurance  policy  or from any  other
related source. See "Description of the Certificates--Advances."

     Any pool  insurance  policy  for a  contract  pool  underlying  a series of
certificates will be described in the related prospectus supplement.

Special Hazard Insurance Policies

     If stated in the related prospectus supplement, the servicer shall obtain a
special  hazard  insurance  policy for the mortgage pool  underlying a series of
certificates.  A special hazard  insurance policy for a mortgage pool underlying
the  certificates of a series will be issued by the special hazard insurer named
in the applicable  prospectus  supplement.  Each special hazard insurance policy
will, subject to the limitations described below, protect against loss by reason
of damage to mortgaged properties caused by certain hazards, including vandalism
and  earthquakes  and,  except  where the  mortgagor is required to obtain flood
insurance,  floods and mudflows,  not insured against under the standard form of
hazard  insurance  policy  for the  respective  states  in which  the  mortgaged
properties are located.  See  "Description of the  Certificates--Maintenance  of
Insurance  Policies"  and  "--Standard  Hazard  Insurance."  The special  hazard
insurance policy will not cover losses  occasioned by war, certain  governmental
actions,  nuclear  reaction and certain other perils.  Coverage  under a special
hazard  insurance  policy  will be at least equal to the amount set forth in the
related prospectus supplement.

     Subject to the foregoing limitations,  each special hazard insurance policy
will provide that, when there has been damage to the mortgaged property securing
a  defaulted  mortgage  loan and to the extent the damage is not  covered by the
standard  hazard  insurance  policy,  if any,  maintained by the mortgagor,  the
servicer or the subservicer, the special hazard insurer will pay the lesser of:

o    the cost of repair or replacement of the mortgaged property; or

o    upon transfer of the mortgaged property to the special hazard insurer,  the
     unpaid  balance of the related  mortgage loan at the time of acquisition of
     the mortgaged property by foreclosure or deed in lieu of foreclosure,  plus
     accrued  interest to the date of claim  settlement,  excluding late charges
     and  penalty  interest,  and  certain  expenses  incurred in respect of the
     mortgaged property.

     No claim may be validly  presented under a special hazard  insurance policy
unless:

o    hazard insurance on the mortgaged property has been kept in force and other
     reimbursable  protection,  preservation and foreclosure  expenses have been
     paid,  all of which must be approved in advance as necessary by the related
     insurer; and

o    the  related  insured has  acquired  title to the  mortgaged  property as a
     result of default by the mortgagor.

If the sum of the unpaid  principal  balance plus  accrued  interest and certain
expenses is paid by the special hazard insurer,  the amount of further  coverage
under the related special hazard insurance policy will be reduced by that amount
less any net proceeds from the sale of the mortgaged  property.  Any amount paid
as the cost of repair of the mortgaged  property will further reduce coverage by
that amount.

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<PAGE>

     The terms of the related  pooling and servicing  agreement will require the
subservicer  to maintain the special hazard  insurance  policy in full force and
effect  throughout  the term of the pooling and servicing  agreement.  If a pool
insurance  policy is required to be maintained  pursuant to the related  pooling
and servicing agreement, the special hazard insurance policy will be designed to
permit full recoveries under the pool insurance  policy in  circumstances  where
recoveries would otherwise be unavailable because the related mortgaged property
has been damaged by a cause not insured against by a standard  hazard  insurance
policy. In that event, the related pooling and servicing  agreement will provide
that,  if the  related  pool  insurance  policy  shall have  terminated  or been
exhausted  through  payment of  claims,  the  servicer  will be under no further
obligation to maintain the special hazard insurance policy.

     Any special  hazard  insurance  policies for a contract  pool  underlying a
series of certificates will be described in the related prospectus supplement.

Mortgagor Bankruptcy Bond

     In the event of a personal  bankruptcy of a mortgagor,  a bankruptcy  court
may  establish  the  value of the  related  mortgaged  property  or  Cooperative
Dwelling at an amount less than the then  outstanding  principal  balance of the
related  mortgage  loan. The amount of the secured debt could be reduced to that
lesser value, and the holder of the mortgage loan thus would become an unsecured
creditor to the extent the outstanding  principal  balance of that mortgage loan
exceeds the value so assigned to the related  mortgaged  property or Cooperative
Dwelling by the bankruptcy  court. In addition,  certain other  modifications of
the terms of a mortgage loan can result from a bankruptcy proceeding.  If stated
in the  related  prospectus  supplement,  losses  resulting  from  a  bankruptcy
proceeding affecting the mortgage loans in a mortgage pool 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 related Rating
Agency.  Any  mortgagor  bankruptcy  bond will provide for coverage in an amount
acceptable to the related Rating Agency,  which will be set forth in the related
prospectus  supplement.  Subject to the terms of the mortgagor  bankruptcy bond,
the issuer thereof may have the right to purchase any mortgage loan with respect
to which a payment or drawing  has been made or may be made for an amount  equal
to the  outstanding  principal  amount of that  mortgage  loan plus  accrued and
unpaid  interest  thereon.  The coverage of the mortgagor  bankruptcy  bond with
respect to a series of certificates may be reduced as long as any reduction will
not result in a reduction of the outstanding  rating of the certificates of that
series by the related Rating Agency.

           Certain Legal Aspects of the Mortgage Loans and Contracts

     The following  discussion  contains  summaries of some legal aspects of the
mortgage  loans and  contracts  that are general in nature.  Because these legal
aspects are governed in part by state law,  which laws may differ  substantially
from state to state, the summaries do not purport to be complete, to reflect the
laws of any particular state or to encompass the laws of all states in which the
mortgaged properties may be situated. These legal aspects are in addition to the
requirements of any applicable FHA regulations  described in "Description of FHA
Insurance" in this  prospectus  and in the  accompanying  prospectus  supplement
regarding the contracts  partially  insured by FHA under Title I of the National
Housing  Act,  or Title I. The  summaries  are  qualified  in their  entirety by
reference to the applicable  federal and state laws governing the mortgage loans
and contracts.

The Mortgage Loans

     General.  The mortgage loans, other than Cooperative Loans, will be secured
by deeds of trust, mortgages or deeds to secure debt depending on the prevailing
practice in the state in which the  related  mortgaged  property is located.  In
some states, a mortgage,  deed of trust or deed to secure debt creates a lien on
the related real property. In other states, the mortgage,  deed of trust or deed
to secure debt conveys legal title to the property to the mortgagee subject to a
condition  subsequent,  for  example,  the payment of the  indebtedness  secured
thereby.  These  instruments are not prior to the lien for real estate taxes and
assessments and other charges imposed under governmental police powers. Priority
with  respect to these  instruments  depends on their terms and in some cases on
the terms of separate  subordination or inter-creditor  agreements,  and in most
cases  on the  order of  recordation  of the  mortgage  deed of trust or deed to
secure debt in the appropriate recording office.

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<PAGE>

     There are two parties to a mortgage, the mortgagor, who is the borrower and
homeowner,  and the mortgagee, who is the lender. Under the mortgage instrument,
the mortgagor delivers to the mortgagee a note or bond and the mortgage. In some
states,  three parties may be involved in a mortgage financing when title to the
property is held by a land  trustee  under a land trust  agreement  of which the
borrower  is the  beneficiary;  at  origination  of a  mortgage  loan,  the land
trustee,  as fee owner of the  property,  executes the mortgage and the borrower
executes a separate  undertaking to make payments on the related  Mortgage Note.
Although  a deed of trust is similar  to a  mortgage,  a deed of trust has three
parties: the grantor, who is the borrower/homeowner; the beneficiary, who is the
lender; and a third-party grantee called the trustee. Under a deed of trust, the
borrower  grants the  mortgaged  property  to the trustee for the benefit of the
beneficiary,  irrevocably until  satisfaction of the debt. A deed to secure debt
typically has two parties,  under which the borrower, or grantor,  conveys title
to the real property to the grantee, or lender,  typically with a power of sale,
until the time when the debt is repaid. The trustee's  authority under a deed of
trust and the  mortgagee's or grantee's  authority under a mortgage or a deed to
secure debt,  as  applicable,  are governed by the law of the state in which the
real property is located, the express provisions of the deed of trust,  mortgage
or deed to secure debt and, in some deed of trust  transactions,  the directions
of the beneficiary.

     Cooperative  Loans.  If stated in the prospectus  supplement  relating to a
series of  securities,  the  loans  may  include  Cooperative  Loans.  Each note
evidencing a Cooperative  Loan will be secured by a security  interest in shares
issued by the Cooperative  that owns the related  apartment  building and in the
related  proprietary lease or occupancy  agreement  granting exclusive rights to
occupy a specific  dwelling  unit in the  Cooperative's  building.  The security
agreement  will  create  a lien  on,  or  grant  a  security  interest  in,  the
Cooperative shares and proprietary leases or occupancy agreements,  the priority
of which  will  depend  on,  among  other  things,  the terms of the  particular
security agreement as well as the order of recordation of the agreement,  or the
filing of the financing statements related thereto, in the appropriate recording
office or the taking of possession of the Cooperative  shares,  depending on the
law of the  state in which  the  Cooperative  is  located.  This type of lien or
security interest is not, in general, prior to liens in favor of the cooperative
corporation for unpaid assessments or common charges.

     In most cases, each Cooperative owns in fee or has a leasehold  interest in
all the real  property  and owns in fee or leases the  building and all separate
dwelling units in the Cooperative.  The Cooperative is directly  responsible for
property  management  and, in most cases,  payment of real estate  taxes,  other
governmental  impositions  and hazard and  liability  insurance.  If there is an
underlying  mortgage or mortgages on the  Cooperative's  building or  underlying
land, as is typically  the case,  or an underlying  lease of the land, as is the
case in some instances, the Cooperative, as mortgagor or lessee, as the case may
be, is also responsible for fulfilling the mortgage or rental obligations.

     An underlying  mortgage loan is ordinarily  obtained by the  Cooperative in
connection  with  either  the  construction  or  purchase  of the  Cooperative's
building or the  obtaining  of capital by the  Cooperative.  The interest of the
occupant  under  proprietary  leases or  occupancy  agreements  as to which that
Cooperative is the landlord is usually subordinate to the interest of the holder
of an underlying  mortgage and to the interest of the holder of a land lease. If
the Cooperative is unable to meet the payment obligations:

o    arising under an underlying  mortgage,  the mortgagee holding an underlying
     mortgage  could  foreclose on that mortgage and  terminate all  subordinate
     proprietary leases and occupancy agreements; or

o    arising under its land lease;

the holder of the landlord's  interest  under the land lease could  terminate it
and all subordinate proprietary leases and occupancy agreements. In addition, an
underlying  mortgage on a  Cooperative  may provide  financing  in the form of a
mortgage that does not fully amortize,  with a significant  portion of principal
being due in one final payment at maturity.  The inability of the Cooperative to
refinance a mortgage  and its  consequent  inability  to make the final  payment
could  lead to  foreclosure  by the  mortgagee.  Similarly,  a land lease has an
expiration  date and the inability of the  Cooperative to extend its term or, in
the  alternative,  to  purchase  the  land,  could  lead to  termination  of the
Cooperative's interest in the property and termination of all proprietary leases
and occupancy  agreements.  In either event,  a foreclosure  by the holder of an
underlying  mortgage or the termination of the underlying  lease could eliminate
or  significantly  diminish the value of any  collateral  held by the lender who
financed  the  purchase  by an



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<PAGE>

individual  tenant-stockholder  of shares of the Cooperative,  or in the case of
the loans, the collateral securing the Cooperative Loans.

     Each   Cooperative   is   owned   by    shareholders,    referred   to   as
tenant-stockholders,   who,  through   ownership  of  stock  or  shares  in  the
Cooperative,  receive  proprietary  leases or occupancy  agreements which confer
exclusive   rights  to  occupy  specific   dwellings.   In  most  instances,   a
tenant-stockholder  of a Cooperative must make a monthly  maintenance payment to
the Cooperative under the proprietary lease, which rental payment represents the
tenant-stockholder's  pro  rata  share  of the  Cooperative's  payments  for its
underlying mortgage, real property taxes, maintenance expenses and other capital
or ordinary  expenses.  An ownership  interest in a Cooperative and accompanying
occupancy  rights may be financed through a Cooperative Loan evidenced by a note
and  secured  by an  assignment  of and a  security  interest  in the  occupancy
agreement or proprietary  lease and a security interest in the related shares of
the  related  Cooperative.  The lender  usually  takes  possession  of the stock
certificate  and a counterpart of the proprietary  lease or occupancy  agreement
and a financing  statement covering the proprietary lease or occupancy agreement
and the Cooperative shares is filed in the appropriate state or local offices to
perfect  the  lender's  interest  in its  collateral.  In  accordance  with  the
limitations  discussed below, on default of the  tenant-stockholder,  the lender
may sue for judgment on the related note,  dispose of the collateral at a public
or   private   sale   or   otherwise   proceed   against   the   collateral   or
tenant-stockholder  as an  individual  as  provided  in the  security  agreement
covering the assignment of the proprietary lease or occupancy  agreement and the
pledge of Cooperative  shares.  See "--Foreclosure on Shares of Cooperatives" in
this prospectus.

     Tax Aspects of Cooperative Ownership.  In general, a  "tenant-stockholder,"
as  defined  in  Section  216(b)(2)  of the  216(b)(1)  of the Code is allowed a
deduction  for amounts  paid or accrued  within his or her  taxable  year to the
corporation  representing  his or her  proportionate  share of certain  interest
expenses and real estate taxes  allowable as a deduction under Section 216(a) of
the Code to the corporation under Sections 163 and 164 of the Code. In order for
a corporation  to qualify  under  Section  216(b)(1) of the Code for its taxable
year in which those items are allowable as a deduction to the  corporation,  the
section requires,  among other things,  that at least 80% of the gross income of
the  corporation  be  derived  from its  tenant-stockholders.  By virtue of this
requirement,  the status of a corporation  for purposes of Section  216(b)(1) of
the Code must be determined on a year-to-year basis. Consequently,  there can be
no assurance that  Cooperatives  relating to the Cooperative  Loans will qualify
under this section for any  particular  year. If a Cooperative  fails to qualify
for  one or more  years,  the  value  of the  collateral  securing  any  related
Cooperative Loans could be significantly  impaired because no deduction would be
allowable to  tenant-stockholders  under Section 216(a) of the Code with respect
to  those  years.  In view of the  significance  of the  tax  benefits  accorded
tenant-stockholders  of a corporation that qualifies under Section  216(b)(1) of
the Code,  the  likelihood  that  this type of  failure  would be  permitted  to
continue over a period of years appears remote.

     Foreclosure on Mortgage Loans. Although a deed of trust or a deed to secure
debt may also be foreclosed by judicial  action,  foreclosure of a deed of trust
or a deed to secure debt is typically  accomplished by a non-judicial sale under
a  specific  provision  in the  deed  of  trust  or deed to  secure  debt  which
authorizes  the  trustee or  grantee,  as  applicable,  to sell the  property on
default by the borrower  under the terms of the note or deed of trust or deed to
secure debt. In addition to any notice requirements contained in a deed of trust
or deed to secure debt, in some states,  the trustee or grantee,  as applicable,
must  record a notice  of  default  and send a copy to the  borrower  and to any
person who has  recorded a request for a copy of notice of default and notice of
sale. In addition,  in some states, the trustee or grantee, as applicable,  must
provide notice to any other individual  having an interest of record in the real
property,  including  any  junior  lienholders.  If the deed of trust or deed to
secure debt is not reinstated  within a specified  period, a notice of sale must
be posted in a public place and, in most states, published for a specific period
of time in one or more newspapers. In addition, some states' 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 real property.

     Foreclosure of a mortgage  usually is accomplished by judicial  action.  In
most cases,  the action is  initiated  by the service of legal  pleadings on all
parties having an interest of record in the real property.  Delays in completion
of the  foreclosure  may  result  from  difficulties  in  locating  and  serving
necessary parties, including borrowers, such as international borrowers, located
outside  the   jurisdiction   in  which  the  mortgaged   property  is  located.
Difficulties  in  foreclosing  on mortgaged  properties  owned by  international
borrowers may result in increased foreclosure costs, which may reduce the amount
of proceeds from the liquidation of the related loan available to be distributed
to  the  certificateholders  of the  related  series.  In  addition,  delays  in
completion of the foreclosure and additional losses may


                                       62
<PAGE>

result where loan documents relating to the loan are missing. If the mortgagee's
right to foreclose is contested,  the legal proceedings necessary to resolve the
issue can be time-consuming.

     In some states,  the  borrower  has the right to reinstate  the loan at any
time following  default until shortly before the trustee's sale. In general,  in
those states,  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 of defaulted  payments and all other sums owing lender due to
the default, plus the costs and expenses incurred in enforcing the obligation.

     In the case of  foreclosure  under a  mortgage,  a deed of trust or deed to
secure  debt,  the sale by the  referee  or other  designated  officer or by the
trustee or grantee,  as applicable,  is a public sale.  However,  because of the
difficulty  a  potential  buyer at the sale may 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 a foreclosure  sale.  Rather, it is common for
the lender to purchase the property from the trustee or grantee,  as applicable,
or referee for a credit bid less than or equal to the unpaid principal amount of
the loan,  accrued and unpaid interest and the expense of foreclosure,  in which
case the mortgagor's  debt will be extinguished  unless the lender purchases the
property for a lesser  amount and preserves its right against a borrower to seek
a  deficiency  judgment  if such  remedy is  available  under  state law and the
related loan documents.  In some states,  there is a statutory  minimum purchase
price that the lender may offer for the  property  and in most cases,  state law
controls the amount of  foreclosure  costs and  expenses,  including  attorneys'
fees,  which may be recovered by a lender.  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,  paying taxes and making  repairs at its own expense that are
necessary to render the property  suitable for sale.  In most cases,  the lender
will obtain the services of a real estate broker and pay the broker's commission
in connection with the sale of the property. Depending on market conditions, the
ultimate  proceeds  of the  sale of the  property  may not  equal  the  lender's
investment in the property and, in some states,  the lender may be entitled to a
deficiency judgment. In some cases, a deficiency judgment may be pursued in lieu
of foreclosure. Any loss may be reduced by the receipt of any mortgage insurance
proceeds or other forms of credit  enhancement  for a series of securities.  See
"Description of Credit Enhancement" in this prospectus.

     Foreclosure on Junior Mortgage Loans. A junior  mortgagee may not foreclose
on the  property  securing a junior  loan  unless it  forecloses  subject to the
senior mortgages,  in which case it must either pay the entire amount due on the
senior  mortgages  to the  senior  mortgagees  prior  to or at the  time  of the
foreclosure  sale or undertake  the  obligation  to make  payments on the senior
mortgages if the mortgagor is in default thereunder,  in either event adding the
amounts  expended to the balance due on the junior  loan.  In  addition,  if the
foreclosure by a junior  mortgagee  triggers the  enforcement of a "due-on-sale"
clause in a senior  mortgage,  the junior  mortgagee  may be required to pay the
full amount of the senior mortgages to the senior mortgagees, to avoid a default
with respect thereto.  Accordingly, if the junior lender purchases the property,
the junior  lender's  title  will be subject to all senior  liens and claims and
certain governmental liens. The proceeds received by the referee or trustee from
the sale are applied  first to the costs,  fees and expenses of sale and then in
satisfaction of the  indebtedness  secured by the mortgage or deed of trust that
is being foreclosed. Any remaining proceeds are typically payable to the holders
of junior  mortgages  or deeds of trust and other  liens and  claims in order of
their  priority,  whether or not the  borrower  is in  default.  Any  additional
proceeds are usually  payable to the  mortgagor  or trustor.  The payment of the
proceeds to the holders of junior mortgages may occur in the foreclosure  action
of the senior  mortgagee  or may  require  the  institution  of  separate  legal
proceedings. See "Description of the Securities--Servicing and Administration of
Loans--Realization Upon Defaulted Loans" in this prospectus.

     Foreclosure on Shares of Cooperatives.  The Cooperative shares owned by the
tenant-stockholder, together with the rights of the tenant-stockholder under the
proprietary lease or occupancy agreement,  are pledged to the lender and are, in
almost all cases,  in accordance  with  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.  The proprietary  lease or occupancy
agreement,  even while pledged,  may be cancelled by the Cooperative for failure
by the  tenant-stockholder  to pay rent or other  obligations or charges owed by
the  tenant-stockholder,  including  mechanics' liens against the  Cooperative's
building incurred by the tenant-stockholder.

                                       63
<PAGE>

     In most  cases,  rent and other  obligations  and charges  arising  under a
proprietary  lease or occupancy  agreement which are owed to the Cooperative are
made liens on the shares to which the proprietary  lease or occupancy  agreement
relates. In addition, the proprietary lease or occupancy agreement in most cases
permits the  Cooperative  to  terminate  the lease or  agreement if the borrower
defaults in the performance of covenants thereunder.  Typically,  the lender and
the  Cooperative  enter into a recognition  agreement  which,  together with any
lender  protection  provisions  contained in the proprietary  lease or occupancy
agreement,  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  in  most  cases   provides   that,   if  the
tenant-stockholder  has  defaulted  under  the  proprietary  lease or  occupancy
agreement,  the  Cooperative  will  take no  action  to  terminate  the lease or
agreement  until the lender has been provided with notice of and 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 shares and the
proprietary  lease or occupancy  agreement  allocated to the dwelling,  subject,
however,  to the Cooperative's  right to sums due under the proprietary lease or
occupancy  agreement  or which have become  liens on the shares  relating to the
proprietary  lease  or  occupancy  agreement.  The  total  amount  owed  to  the
Cooperative  by the  tenant-stockholder,  which the lender in most cases  cannot
restrict and does not monitor,  could reduce the amount  realized upon a sale of
the collateral below the outstanding  principal  balance of the Cooperative Loan
and accrued and unpaid interest thereon.

     Recognition  agreements also typically  provide that if the lender succeeds
to the tenant-shareholder's  shares and proprietary lease or occupancy agreement
as the result of realizing  upon its  collateral  for a  Cooperative  Loan,  the
lender must  obtain the  approval  or consent of the board of  directors  of the
Cooperative  as  required  by the  proprietary  lease  before  transferring  the
Cooperative shares and assigning the proprietary lease. This approval or consent
is usually  based on the  prospective  purchaser's  income and net worth,  among
other factors, and may significantly reduce the number of potential  purchasers,
which could  limit the ability of the lender to sell and realize  upon the value
of the collateral. In most cases, the lender is not limited in any rights it may
have to dispossess the tenant-stockholder.

     Because of the nature of  Cooperative  Loans,  lenders do not  require  the
tenant-stockholder,  the  borrower,  to  obtain  title  insurance  of any  type.
Consequently,  the existence of any prior liens or other  imperfections of title
affecting the  Cooperative's  building or real estate also may adversely  affect
the  marketability  of the shares allocated to the dwelling unit in the event of
foreclosure.

     A foreclosure on the  Cooperative  shares is accomplished by public sale in
accordance with the provisions of Article 9 of the Uniform  Commercial  Code, or
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 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  sale  and the sale  price.  In most  instances,  a sale  conducted
according to the usual practice of creditors  selling similar  collateral in the
same area will be considered reasonably conducted.

     Where the  lienholder  is the junior  lienholder,  any  foreclosure  may be
delayed  until  the  junior   lienholder   obtains  actual  possession  of  such
Cooperative shares.  Additionally,  if the lender does not have a first priority
perfected  security  interest in the Cooperative  shares,  any foreclosure  sale
would be subject to the rights and  interests  of any  creditor  holding  senior
interests in the shares.  Also, a junior  lienholder may not be able to obtain a
recognition  agreement from a Cooperative  since many cooperatives do not permit
subordinate financing.  Without a recognition  agreement,  the junior lienholder
will not be afforded the usual lender protections from the Cooperative which are
in most cases provided for in recognition agreements.

     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,  in  most  cases  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


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proceeds remaining,  the lender must account to the  tenant-stockholder  for the
surplus. On the other hand, if a portion of the indebtedness remains unpaid, the
tenant-stockholder  is  in  most  cases  responsible  for  the  deficiency.  See
"--Anti-Deficiency  Legislation  and  Other  Limitations  on  Lenders"  in  this
prospectus.

     Rights of Redemption.  In some states, after sale under a deed of trust, or
a deed to secure debt or foreclosure of a mortgage,  the borrower and foreclosed
junior lienors or other parties are given a statutory period,  typically ranging
from six  months  to two  years,  in  which  to  redeem  the  property  from the
foreclosure  sale. In some states,  redemption  may occur only on payment of the
entire principal balance of the mortgage loan,  accrued interest and expenses of
foreclosure.  In  other  states,  redemption  may be  authorized  if the  former
borrower  pays only a  portion  of the sums due.  In some  states,  the right to
redeem is an equitable right. The equity of redemption, which is a non-statutory
right,  should be distinguished from statutory rights of redemption.  The effect
of a statutory  right of  redemption is to diminish the ability of the lender to
sell the foreclosed property. The rights of redemption would defeat the title of
any purchaser  subsequent to foreclosure or sale under a deed of trust or a deed
to secure debt. 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 expired.

     Anti-Deficiency  Legislation and Other Limitations on Lenders.  Some states
have imposed  statutory  prohibitions  which limit the remedies of a beneficiary
under a deed of trust, a mortgagee under a mortgage or a grantee under a deed to
secure debt. In some states,  including California,  statutes limit the right of
the  beneficiary,  mortgagee or grantee to obtain a deficiency  judgment against
the borrower following foreclosure. A deficiency judgment is a personal judgment
against the former  borrower equal in most cases to the  difference  between the
net amount realized upon the public sale of the real property and the amount due
to the lender.  In the case of a mortgage loan secured by a property  owned by a
trust where the Mortgage  Note is executed on behalf of the trust,  a deficiency
judgment  against the trust following  foreclosure or sale under a deed of trust
or deed to secure  debt,  even if  obtainable  under  applicable  law, may be of
little value to the  beneficiary,  grantee or mortgagee if there are no mortgage
loans against which the deficiency judgment may be executed. Some state statutes
require the beneficiary,  grantee or mortgagee to exhaust the security  afforded
under a deed of trust,  deed to secure  debt or mortgage  by  foreclosure  in an
attempt to satisfy the full debt before  bringing a personal  action against the
borrower.

     In other  states,  the lender has the option of bringing a personal  action
against the borrower on the debt without first exhausting the security; however,
in some of these states, the lender,  following judgment on the personal action,
may be deemed to have  elected a remedy  and may be  precluded  from  exercising
remedies for the security.  Consequently,  the practical  effect of the election
requirement,  in those states  permitting  this  election,  is that lenders will
usually  proceed  against the  security  first  rather than  bringing a personal
action against the borrower. Finally, in some states, statutory provisions limit
any  deficiency  judgment  against the borrower  following a foreclosure  to the
excess of the  outstanding  debt over the fair value of the property at the time
of the public sale.  The purpose of these statutes is in most cases to prevent a
beneficiary,  grantee or mortgagee  from obtaining a large  deficiency  judgment
against the borrower as a result of low or no bids at the judicial sale.

     In most cases,  Article 9 of the UCC  governs  foreclosure  on  Cooperative
shares and the related  proprietary  lease or occupancy  agreement.  Some courts
have  interpreted  Article 9 to  prohibit  or limit a  deficiency  award in some
circumstances,  including circumstances where the disposition of the collateral,
which, in the case of a Cooperative Loan, would be the shares of the Cooperative
and the related proprietary lease or occupancy agreement, was not conducted in a
commercially reasonable manner.

     In addition to laws limiting or prohibiting deficiency judgments,  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 the secured mortgage lender to realize upon its collateral and/or
enforce a deficiency  judgment.  For example,  under the federal bankruptcy law,
all actions  against the debtor,  the debtor's  property and any  co-debtor  are
automatically stayed upon the filing of a bankruptcy petition. Moreover, a court
having federal  bankruptcy  jurisdiction may permit a debtor through its Chapter
11 or Chapter 13  rehabilitative  plan to cure a monetary  default relating to a
mortgage  loan or  revolving  credit loan on the  debtor's  residence  by paying
arrearages  within a reasonable  time period and  reinstating  the original loan
payment  schedule,  even  though the lender  accelerated  the  mortgage  loan or
revolving  credit loan and final  judgment of  foreclosure  had been  entered in
state court.  Some courts with federal  bankruptcy  jurisdiction  have  approved
plans, based on the particular facts of


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the  reorganization  case,  that  effected  the  curing  of a  mortgage  loan or
revolving credit loan default by paying arrearages over a number of years.

     Courts with federal  bankruptcy  jurisdiction  have also indicated that the
terms of a mortgage  loan or  revolving  credit loan  secured by property of the
debtor may be modified.  These courts have  allowed  modifications  that include
reducing  the amount of each  monthly  payment,  changing  the rate of interest,
altering  the  repayment  schedule,  forgiving  all or a portion of the debt and
reducing  the lender's  security  interest to the value of the  residence,  thus
leaving the lender a general unsecured  creditor for the difference  between the
value of the  residence  and the  outstanding  balance of the  mortgage  loan or
revolving credit loan. In most cases,  however,  the terms of a mortgage loan or
revolving  credit loan secured only by a mortgage on real  property  that is the
debtor's  principal  residence may not be modified under a plan confirmed  under
Chapter 13, as opposed to Chapter 11,  except for mortgage  payment  arrearages,
which  may be  cured  within a  reasonable  time  period.  Courts  with  federal
bankruptcy  jurisdiction  similarly  may  be  able  to  modify  the  terms  of a
Cooperative Loan.

     Certain tax liens arising under the Code may, in some  circumstances,  have
priority over the lien of a mortgage, deed to secure debt or deed of trust. This
may have the effect of delaying or  interfering  with the  enforcement of rights
for a defaulted mortgage loan or revolving credit loan.

     In addition,  substantive  requirements  are imposed on mortgage lenders in
connection with the origination and the servicing of mortgage loans or revolving
credit loans by numerous federal and some state consumer  protection laws. 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. These federal laws impose specific statutory
liabilities on lenders who originate  mortgage  loans or revolving  credit loans
and who fail to comply  with the  provisions  of the law.  In some  cases,  this
liability may affect assignees of the mortgage loans or revolving credit loans.

     Some of the  mortgage  loans or  revolving  credit  loans  may be High Cost
Loans. Purchasers or assignees of any High Cost Loan, including any trust, could
be  liable  for all  claims  and  subject  to all  defenses  arising  under  any
applicable law that the borrower could assert against the originator of the High
Cost Loan.  Remedies  available to the borrower include monetary  penalties,  as
well as  rescission  rights  if the  appropriate  disclosures  were not given as
required.

     Alternative  Mortgage   Instruments.   Alternative  mortgage   instruments,
including  adjustable rate mortgage loans and early ownership  mortgage loans or
revolving credit loans,  originated by  non-federally  chartered  lenders,  have
historically  been subjected to a variety of  restrictions.  These  restrictions
differed from state to state, resulting in difficulties in determining whether a
particular  alternative  mortgage  instrument  originated  by a  state-chartered
lender was in compliance with applicable law. These difficulties were alleviated
substantially  as a result of the enactment of Title VIII of the Garn-St Germain
Act, or Title VIII. Title VIII provides that, regardless of any state law to the
contrary:

o    state-chartered  banks may originate  alternative  mortgage  instruments in
     accordance with regulations  promulgated by the Comptroller of the Currency
     for the origination of alternative mortgage instruments by national banks;

o    state-chartered   credit   unions  may   originate   alternative   mortgage
     instruments  in accordance  with  regulations  promulgated  by the National
     Credit  Union   Administration  for  origination  of  alternative  mortgage
     instruments by federal credit unions; and

o    all   other   non-federally   chartered   housing   creditors,    including
     state-chartered  savings  and loan  associations,  state-chartered  savings
     banks  and  mutual  savings  banks  and  mortgage  banking  companies,  may
     originate   alternative   mortgage   instruments  in  accordance  with  the
     regulations promulgated by the Federal Home Loan Bank Board, predecessor to
     the OTS, for  origination  of alternative  mortgage  instruments by federal
     savings and loan associations.

     Title VIII also  provides  that any state may reject  applicability  of the
provisions  of Title VIII by  adopting,  prior to  October  15,  1985,  a law or
constitutional   provision   expressly  rejecting  the  applicability  of  these
provisions. Some states have taken this action.

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<PAGE>

     Junior  Mortgages;  Rights  of Senior  Mortgagees.  The  mortgage  loans or
revolving  credit loans included in the trust may be junior to other  mortgages,
deeds  to  secure  debt or  deeds of trust  held by  other  lenders.  Absent  an
intercreditor   agreement,   the  rights  of  the  trust,   and   therefore  the
certificateholders,  as mortgagee  under a junior  mortgage,  are subordinate to
those of the mortgagee under the senior mortgage,  including the prior rights of
the senior mortgagee to receive hazard  insurance and condemnation  proceeds and
to cause the property  securing the mortgage loan or revolving credit loan to be
sold on  default  of the  mortgagor.  The  sale of the  mortgaged  property  may
extinguish the junior  mortgagee's lien unless the junior mortgagee  asserts its
subordinate  interest in the property in foreclosure  litigation and, in certain
cases,  either  reinstates or satisfies the  defaulted  senior  mortgage loan or
revolving  credit loan or mortgage  loans or revolving  credit  loans.  A junior
mortgagee may satisfy a defaulted  senior mortgage loan or revolving credit loan
in full or, in some states,  may cure the default and bring the senior  mortgage
loan or revolving  credit loan current  thereby  reinstating the senior mortgage
loan or  revolving  credit  loan,  in either  event  usually  adding the amounts
expended to the  balance due on the junior  mortgage  loan or  revolving  credit
loan. In most states, absent a provision in the mortgage, deed to secure debt or
deed of trust, or an intercreditor  agreement,  no notice of default is required
to be given to a junior  mortgagee.  Where  applicable  law or the  terms of the
senior  mortgage,  deed to secure debt or deed of trust do not require notice of
default to the junior  mortgagee,  the lack of any notice may prevent the junior
mortgagee from  exercising any right to reinstate the mortgage loan or revolving
credit loan which applicable law may provide.

     The  standard  form of the  mortgage,  deed to secure debt or deed of trust
used by most  institutional  lenders  confers on the mortgagee the right both to
receive all proceeds  collected under any hazard insurance policy and all awards
made in connection with condemnation proceedings,  and to apply the proceeds and
awards to any indebtedness secured by the mortgage,  deed to secure debt or deed
of trust, in the order as the mortgagee may determine.  Thus, if improvements on
the  property  are damaged or  destroyed  by fire or other  casualty,  or if the
property is taken by condemnation, the mortgagee or beneficiary under underlying
senior  mortgages  will have the prior right to collect any  insurance  proceeds
payable under a hazard  insurance  policy and any award of damages in connection
with the condemnation  and to apply the same to the indebtedness  secured by the
senior  mortgages.   Proceeds  in  excess  of  the  amount  of  senior  mortgage
indebtedness,  in most  cases,  may be  applied  to the  indebtedness  of junior
mortgages in the order of their priority.

     Another  provision  sometimes  found in the form of the  mortgage,  deed to
secure  debt or deed  of  trust  used by  institutional  lenders  obligates  the
mortgagor to pay before  delinquency  all taxes and  assessments on the property
and,  when due, all  encumbrances,  charges and liens on the property  which are
prior to the  mortgage,  deed to secure  debt or deed of trust,  to provide  and
maintain fire insurance on the property, to maintain and repair the property and
not to commit  or permit  any waste  thereof,  and to appear in and  defend  any
action or  proceeding  purporting  to affect the  property  or the rights of the
mortgagee under the mortgage or deed of trust.  After a failure of the mortgagor
to perform any of these  obligations,  the mortgagee or beneficiary is given the
right under certain mortgages, deeds to secure debt or deeds of trust to perform
the obligation itself, at its election, with the mortgagor agreeing to reimburse
the mortgagee for any sums expended by the mortgagee on behalf of the mortgagor.
All sums so  expended  by a senior  mortgagee  become  part of the  indebtedness
secured by the senior mortgage.  Also,  since most senior mortgages  require the
related mortgagor to make escrow deposits with the holder of the senior mortgage
for all real estate taxes and insurance  premiums,  many junior  mortgagees will
not  collect  and retain the  escrows  and will rely on the holder of the senior
mortgage to collect and disburse the escrows.

     The form of credit line trust deed or mortgage  used by most  institutional
lenders that make revolving  credit loans typically  contains a "future advance"
clause,  which provides,  in essence,  that additional amounts advanced to or on
behalf of the  borrower  by the  beneficiary  or lender are to be secured by the
deed of trust or mortgage.  The  priority of the lien  securing any advance made
under the  clause  may  depend in most  states on  whether  the deed of trust or
mortgage  is  designated  as a credit  line  deed of trust or  mortgage.  If the
beneficiary or lender advances  additional  amounts,  the advance is entitled to
receive the same priority as amounts initially  advanced under the trust deed or
mortgage,  regardless  of the fact  that  there  may be  junior  trust  deeds or
mortgages  and other liens that  intervene  between the date of recording of the
trust deed or mortgage and the date of the future  advance,  and regardless that
the beneficiary or lender had actual knowledge of these intervening junior trust
deeds or mortgages  and other liens at the time of the advance.  In most states,
the trust deed or mortgage  lien  securing  mortgage  loans or revolving  credit
loans of the type that includes revolving credit loans applies  retroactively to
the date of the original recording of the trust deed or mortgage,  provided that
the total amount of advances under the credit limit does not


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exceed the maximum  specified  principal  amount of the  recorded  trust deed or
mortgage,  except as to advances  made after  receipt by the lender of a written
notice of lien from a judgment lien creditor of the trustor.

The Manufactured Housing Contracts

     General. A manufactured housing contract evidences both:

o    the obligation of the mortgagor to repay the loan evidenced thereby; and

o    the  grant  of a  security  interest  in the  manufactured  home to  secure
     repayment of the loan.

Certain  aspects of both  features of the  manufactured  housing  contracts  are
described below.

     Security Interests in Manufactured Homes. The law governing perfection of a
security  interest in a manufactured  home varies from state to state.  Security
interests  in  manufactured  homes may be  perfected  either by  notation of the
secured  party's lien on the certificate of title or by delivery of the required
documents and payments of a fee to the state motor vehicle authority,  depending
on state law. In some non-title  states,  perfection under the provisions of the
UCC is  required.  The lender,  the  subservicer  or the servicer may effect the
notation or delivery of the required  documents and fees, and obtain  possession
of the certificate of title, as appropriate under the laws of the state in which
any manufactured home securing a manufactured housing contract is registered. If
the  servicer,  the  subservicer  or the lender  fails to effect the notation or
delivery, or files the security interest under the wrong law, for example, under
a motor vehicle title  statute  rather than under the UCC, in a few states,  the
certificateholders  may  not  have a first  priority  security  interest  in the
manufactured  home securing a manufactured  housing  contract.  As  manufactured
homes have become larger and often have been attached to their sites without any
apparent  intention  to  move  them,  courts  in  many  states  have  held  that
manufactured  homes,  under certain  circumstances,  may become  subject to real
estate  title  and  recording  laws.  As a  result,  a  security  interest  in a
manufactured  home  could be  rendered  subordinate  to the  interests  of other
parties claiming an interest in the home under applicable state real estate law.
In order to perfect a security interest in a manufactured home under real estate
laws, the holder of the security interest must record a mortgage,  deed of trust
or deed to secure debt, as  applicable,  under the real estate laws of the state
where the manufactured  home is located.  These filings must be made in the real
estate records office of the county where the manufactured  home is located.  In
some cases, a security interest in the manufactured home will be governed by the
certificate of title laws or the UCC, and the notation of the security  interest
on the  certificate of title or the filing of a UCC financing  statement will be
effective  to maintain the  priority of the  seller's  security  interest in the
manufactured home. If, however,  a manufactured home is permanently  attached to
its site or if a court  determines  that a  manufactured  home is real property,
other parties could obtain an interest in the  manufactured  home which is prior
to the security interest  originally  retained by the mortgage collateral seller
and  transferred  to the  depositor.  In  certain  cases,  the  servicer  or the
subservicer,  as applicable,  may be required to perfect a security  interest in
the  manufactured  home under  applicable  real estate laws.  If the real estate
recordings  are not required and if any of the  foregoing  events were to occur,
the  only  recourse  of the  related  certificateholders  would be  against  the
mortgage  collateral  seller  under  its  repurchase  obligation  for  breach of
representations or warranties.

     The depositor will assign its security  interests in the manufactured homes
to the  trustee on behalf of the  certificateholders.  See  "Description  of the
Securities--Assignment   of  Loans"  in  this  prospectus.   If  stated  in  the
accompanying  prospectus  supplement,  if a manufactured home is governed by the
applicable motor vehicle laws of the relevant state the depositor or the trustee
will amend the  certificates of title to identify the trustee as the new secured
party.  In  most  cases  however,  if a  manufactured  home is  governed  by the
applicable  motor  vehicle laws of the relevant  state neither the depositor nor
the trustee will amend the  certificates of title to identify the trustee as the
new secured  party.  Accordingly,  the  depositor  or any other entity as may be
specified in the prospectus  supplement will continue to be named as the secured
party on the certificates of title relating to the manufactured homes.  However,
there exists a risk that, in the absence of an amendment to the  certificate  of
title, the assignment of the security interest may not be held effective against
subsequent  purchasers of a manufactured  home or subsequent  lenders who take a
security interest in the manufactured home or creditors of the assignor.

     If the owner of a  manufactured  home  moves it to a state  other  than the
state in which the  manufactured  home  initially is registered and if steps are
not taken to re-perfect the trustee's security interest in the state, the


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security interest in the manufactured home will cease to be perfected.  While in
many  circumstances  the trustee would have the  opportunity  to re-perfect  its
security interest in the manufactured home in the state of relocation, there can
be no assurance that the trustee will be able to do so.

     When a mortgagor under a manufactured housing contract sells a manufactured
home,  the trustee,  the  subservicer  or the servicer on behalf of the trustee,
must surrender  possession of the certificate of title or will receive notice as
a result of its lien noted thereon and  accordingly  will have an opportunity to
require satisfaction of the related lien before release of the lien. The ability
to  accelerate  the  maturity  of  the  related  contract  will  depend  on  the
enforceability  under  state  law  of  the  clause  permitting  acceleration  on
transfer.  The Garn-St.  Germain  Depository  Institutions Act of 1982 preempts,
subject to certain exceptions and conditions, state laws prohibiting enforcement
of these clauses applicable to manufactured  homes. To the extent the exceptions
and  conditions  apply in some  states,  the  servicer  may be  prohibited  from
enforcing the clause in respect of certain manufactured homes.

     Under  the  laws  of  most  states,   liens  for  repairs  performed  on  a
manufactured  home  take  priority  over  a  perfected  security  interest.  The
applicable  mortgage  collateral  seller typically will represent that it has no
knowledge  of any  liens  for any  manufactured  home  securing  payment  on any
manufactured housing contract. However, the liens could arise at any time during
the term of a  manufactured  housing  contract.  No notice  will be given to the
trustee or  certificateholders if a lien arises and the lien would not give rise
to a  repurchase  obligation  on the part of the party  specified in the related
agreement.

     To the extent  that  manufactured  homes are not  treated as real  property
under applicable  state law,  manufactured  housing  contracts in most cases are
"chattel  paper" as  defined  in the UCC in  effect  in the  states in which the
manufactured homes initially were registered. Under the UCC, the sale of chattel
paper is treated in a manner  similar to  perfection  of a security  interest in
chattel paper. Under the related agreement, the servicer, the subservicer or the
depositor,  as the  case  may  be,  will  transfer  physical  possession  of the
manufactured housing contracts to the trustee or its custodian. In addition, the
servicer  or the  subservicer  will make an  appropriate  filing of a  financing
statement in the appropriate states to give notice of the trustee's ownership of
the manufactured  housing  contracts.  If stated in the accompanying  prospectus
supplement,  the  manufactured  housing  contracts  will be  stamped  or  marked
otherwise to reflect their assignment from the depositor to the trustee. In most
cases however,  the manufactured housing contracts will not be stamped or marked
otherwise  to  reflect  their  assignment  from the  depositor  to the  trustee.
Therefore,  if a subsequent  purchaser were able to take physical  possession of
the  manufactured  housing  contracts  without  notice  of the  assignment,  the
trustee's interest in the manufactured housing contracts could be defeated. Even
if unsuccessful, these claims could delay payments to the related trust fund and
certificateholders.  If  successful,  losses  to  the  related  trust  fund  and
certificateholders  also could result. To the extent that manufactured homes are
treated as real property under applicable  state law,  contracts will be treated
in a manner similar to that described above with regard to mortgage  loans.  See
"--The mortgage loans" in this prospectus.

     Land  Home and  Land-in-Lieu  Contracts.  To the  extent  described  in the
applicable  prospectus  supplement,  the related  contract pool may contain land
home  contracts  or  land-in-lieu  contracts.  The land home  contracts  and the
land-in-lieu  contracts  will be secured by either  first  mortgages or deeds of
trust,  depending  upon the  prevailing  practice  in the  state  in  which  the
underlying property is located. See "Certain Legal Aspects of the Mortgage Loans
and  Contracts--The  Mortgage  Loans" for a description  of mortgages,  deeds of
trust and foreclosure procedures.

     Enforcement of Security Interests in Manufactured Homes. The subservicer or
the  servicer on behalf of the  trustee,  to the extent  required by the related
agreement,  may take  action to enforce  the  trustee's  security  interest  for
manufactured  housing  contracts  in  default  by  repossession  and sale of the
manufactured homes securing the defaulted  manufactured  housing  contracts.  So
long as the  manufactured  home has not  become  subject to real  estate  law, a
creditor in most cases can repossess a manufactured  home securing a contract by
voluntary surrender,  by "self-help"  repossession that is "peaceful" or, in the
absence of voluntary  surrender and the ability to repossess  without  breach of
the peace,  by judicial  process.  The UCC and consumer  protection laws in most
states place  restrictions  on  repossession  sales,  including  requiring prior
notice to the debtor and  commercial  reasonableness  in effecting the sale. The
debtor  may also  have a right to  redeem  the  manufactured  home at or  before
resale.

     Certain  statutory  provisions,  including federal and state bankruptcy and
insolvency laws and general equitable principles, may limit or delay the ability
of a lender to repossess and resell collateral or enforce a


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deficiency  judgment.  For a  discussion  of  deficiency  judgments,  see "--The
Mortgage Loans--Anti-Deficiency Legislation and Other Limitations on Lenders" in
this prospectus.

Enforceability of Certain Provisions

     If stated in accompanying  prospectus supplement indicates otherwise,  some
or all of the loans will not contain due-on-sale clauses. In most cases however,
all of the loans will contain  due-on-sale  clauses.  These  clauses  permit the
lender to accelerate the maturity of the loan if the borrower  sells,  transfers
or conveys  the  property.  The  enforceability  of these  clauses  has been the
subject of  legislation  or  litigation  in many  states,  and in some cases the
enforceability of these clauses has been limited or denied. However, the Garn-St
Germain  Depository  Institutions Act of 1982, or Garn-St Germain Act,  preempts
state  constitutional,  statutory and case law that prohibit the  enforcement of
due-on-sale  clauses and permits  lenders to enforce these clauses in accordance
with their terms,  subject to limited  exceptions.  The Garn-St Germain Act does
"encourage"  lenders  to  permit  assumption  of loans at the  original  rate of
interest  or at some other rate less than the average of the  original  rate and
the market rate.

     The Garn-St Germain Act also sets forth nine specific  instances in which a
mortgage  lender  covered  by  the  Garn-St  Germain  Act  may  not  exercise  a
due-on-sale  clause,  regardless of the fact that a transfer of the property may
have  occurred.  These  include  intra-family  transfers,  certain  transfers by
operation of law,  leases of fewer than three years and the creation of a junior
encumbrance. Regulations promulgated under the Garn-St Germain Act also prohibit
the  imposition of a prepayment  penalty on the  acceleration  of a loan under a
due-on-sale clause.

     The inability to enforce a due-on-sale  clause may result in a loan bearing
an interest rate below the current market rate being assumed by a new home buyer
rather than being paid off,  which may have an impact on the average life of the
loans and the number of loans which may be outstanding until maturity.

     On foreclosure,  courts have imposed general  equitable  principles.  These
equitable  principles are designed to relieve the borrower from the legal effect
of its defaults  under the loan  documents.  Examples of judicial  remedies that
have been 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  required  that  lenders  reinstate  loans or recast
payment  schedules in order to  accommodate  borrowers  who are  suffering  from
temporary financial disability. In other cases, courts have limited the right of
the lender to foreclose  if the default  under the  mortgage  instrument  is not
monetary,  including the borrower  failing to adequately  maintain the property.
Finally, some courts have been faced with the issue of whether or not federal or
state  constitutional  provisions  reflecting due process  concerns for adequate
notice  require  that  borrowers  under deeds of trust,  deeds to secure debt or
mortgages receive notices in addition to the statutorily prescribed minimum. 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 deed
to  secure  a debt or a  mortgagee  having a power  of  sale,  does not  involve
sufficient state action to afford constitutional protections to the borrower.

Consumer Protection Laws

     Numerous  federal and state consumer  protection  laws impose  requirements
applicable to the origination of loans,  including the Truth in Lending Act, the
Federal  Trade  Commission  Act,  the Fair Credit  Billing  Act, the Fair Credit
Reporting  Act,  the Equal  Credit  Opportunity  Act,  the Fair Debt  Collection
Practices Act and the Uniform Consumer Credit Code. In the case of some of these
laws, the failure to comply with their provisions may affect the  enforceability
of the related loan.

     If the transferor of a consumer credit contract is also the seller of goods
that give rise to the  transaction,  and, in certain cases,  related lenders and
assignees,  the  "Holder-in-Due-Course"  rule of the Federal Trade Commission is
intended to defeat the ability of the  transferor  to transfer the contract free
of  notice of claims by the  debtor  thereunder.  The  effect of this rule is to
subject the assignee of the contract to all claims and defenses  that the debtor
could assert against the seller of goods.  Liability  under this rule is limited
to amounts  paid under a contract;  however,  the  borrower  also may be able to
assert the rule to set off  remaining  amounts due as a defense  against a claim
brought against the borrower.

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Applicability of Usury Laws

     Title V of the Depository  Institutions  Deregulation  and Monetary Control
Act of 1980, or Title V, provides that state usury  limitations  shall not apply
to some types of residential first mortgage loans,  including  Cooperative Loans
originated  by some  lenders.  Title V also  provides  that,  subject to certain
conditions,  state usury limitations shall not apply to any loan that is secured
by a first lien on certain kinds of manufactured housing.  Title V also provides
that,  subject to the following  conditions,  state usury  limitations shall not
apply to any home  improvement  contract that is secured by a first lien on some
kinds of consumer  goods.  The  contracts  would be covered if they satisfy some
conditions,  among other things,  governing the terms of any  prepayments,  late
charges  and  deferral  fees and  requiring  a  30-day  notice  period  prior to
instituting any action leading to repossession of the related unit.

     Title V authorized any state to reimpose  limitations on interest rates and
finance  charges  by  adopting  before  April  1,  1983 a law or  constitutional
provision that expressly rejects  application of the federal law. Fifteen states
adopted  this type of prior to the April 1, 1983  deadline.  In  addition,  even
where Title V was not so rejected, any state is authorized by the law to adopt a
provision limiting discount points or other charges on loans covered by Title V.

     Usury limits apply to junior mortgage loans in many states.  Any applicable
usury limits in effect at origination  will be reflected in the maximum interest
rates for the  mortgage  loans,  as  described  in the  accompanying  prospectus
supplement.

     In most cases,  each seller of a loan will have  represented  that the loan
was originated in compliance  with then applicable  state laws,  including usury
laws, in all material respects. However, the interest rates on the loans will be
subject to applicable usury laws as in effect from time to time.

Environmental Legislation

     Under the federal Comprehensive  Environmental  Response,  Compensation and
Liability  Act of 1980,  as  amended,  or  CERCLA,  and under  state law in some
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 some  circumstances  for the costs of  cleaning  up  hazardous
substances  regardless of whether they have  contaminated  the property.  CERCLA
imposes  strict,  as well as joint and several,  liability on several classes of
potentially  responsible parties,  including current owners and operators of the
property  who did not cause or  contribute  to the  contamination.  Furthermore,
liability  under CERCLA is not limited to the original or unamortized  principal
balance of a loan or to the value of the property  securing a loan.  Lenders may
be held liable under  CERCLA as owners or operators  unless they qualify for the
secured creditor exemption to CERCLA. This exemption exempts from the definition
of owners and operators those who, without  participating in the management of a
facility,  hold indicia of ownership primarily to protect a security interest in
the facility.

     The Asset Conservation, Lender Liability and Deposit Insurance Act of 1996,
as amended, or the Conservation Act, amended, among other things, the provisions
of  CERCLA  for  lender  liability  and  the  secured  creditor  exemption.  The
Conservation  Act offers  substantial  protection  to lenders  by  defining  the
activities  in which a lender  can  engage  and still  have the  benefit  of the
secured creditor  exemption.  For a lender to be deemed to have  participated in
the management of a mortgaged property,  the lender must actually participate in
the operational affairs of the mortgaged property. The Conservation Act provides
that "merely having the capacity to influence,  or unexercised right to control"
operations does not constitute  participation in management.  A lender will lose
the  protection  of  the  secured  creditor   exemption  only  if  it  exercises
decision-making  control  over  the  mortgagor's  environmental  compliance  and
hazardous  substance  handling and  disposal  practices,  or assumes  day-to-day
management of substantially all operational functions of the mortgaged property.
The  Conservation  Act also  provides  that a lender  will  continue to have the
benefit of the secured  creditor  exemption even if it forecloses on a mortgaged
property,  purchases  it at a  foreclosure  sale or  accepts a  deed-in-lieu  of
foreclosure provided that the lender seeks to sell the mortgaged property at the
earliest  practicable  commercially  reasonable time on commercially  reasonable
terms.

     Other federal and state laws in some  circumstances may impose liability on
a secured party which takes a deed-in-lieu of foreclosure, purchases a mortgaged
property


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<PAGE>

at a foreclosure  sale, or operates a mortgaged  property on which  contaminants
other  than  CERCLA  hazardous  substances  are  present,  including  petroleum,
agricultural chemicals, hazardous wastes, asbestos, radon, and lead-based paint.
These  cleanup costs may be  substantial.  It is possible that the cleanup costs
could  become  a  liability  of  a  trust  and  reduce  the  amounts   otherwise
distributable to the holders of the related series of securities. Moreover, some
federal  statutes and some states by statute impose an  Environmental  Lien. All
subsequent  liens on that property are usually  subordinated to an Environmental
Lien  and,  in some  states,  even  prior  recorded  liens are  subordinated  to
Environmental  Liens. In the latter states, the security interest of the trustee
in a related  parcel of real property that is subject to an  Environmental  Lien
could be adversely affected.

     Traditionally,  many  residential  mortgage lenders have not taken steps to
evaluate whether  contaminants  are present for any mortgaged  property prior to
the  origination of the loan or prior to foreclosure or accepting a deed-in-lieu
of  foreclosure.  Neither the depositor nor any servicer or subservicer  will be
required  by any  agreement  to  undertake  any of  these  evaluations  prior to
foreclosure or accepting a deed-in-lieu of  foreclosure.  The depositor does not
make any  representations  or warranties or assume any liability for the absence
or effect of  contaminants on any mortgaged  property or any casualty  resulting
from the  presence  or effect of  contaminants.  However,  the  servicer  or the
subservicer  will not be obligated to  foreclose  on any  mortgaged  property or
accept a deed-in-lieu  of  foreclosure  if it knows or reasonably  believes that
there are material  contaminated  conditions  on the  property.  A failure so to
foreclose may reduce the amounts otherwise  available to  certificateholders  of
the related series.

     If stated in the applicable  prospectus  supplement,  at the time the loans
were originated,  an environmental  assessment of the mortgaged  properties will
have  been  conducted.  In most  cases  however,  at the  time  the  loans  were
originated, no environmental assessment or a very limited environment assessment
of the mortgaged properties will have been conducted.

Soldiers' and Sailors' Civil Relief Act of 1940

     Under the terms of the Relief Act a borrower  who enters  military  service
after the  origination of the borrower's  loan,  including a borrower who was in
reserve  status and is called to active duty after  origination of the loan, may
not be charged interest,  including fees and charges, above an annual rate of 6%
during the period of the  borrower's  active duty status,  unless a court orders
otherwise on application of the lender.  The Relief Act applies to borrowers who
are members of the Air Force, Army, Marines,  Navy, National Guard,  Reserves or
Coast Guard,  and officers of the U.S.  Public Health  Service  assigned to duty
with the military.

     Because the Relief Act applies to  borrowers  who enter  military  service,
including  reservists  who are called to active duty,  after  origination of the
related loan, no information  can be provided as to the number of loans that may
be affected by the Relief Act. For loans included in a trust, application of the
Relief Act would  adversely  affect,  for an  indeterminate  period of time, the
ability of the  subservicer  or the  servicer,  as  applicable,  to collect full
amounts  of  interest  on the  loans.  Any  shortfall  in  interest  collections
resulting  from the  application  of the Relief Act or  similar  legislation  or
regulations, which would not be recoverable from the related loans, would result
in a  reduction  of the  amounts  distributable  to the  holders of the  related
securities,  and  would  not be  covered  by  Advances  or any  form  of  credit
enhancement  provided in connection  with the related series of  securities.  In
addition,  the Relief Act imposes  limitations  that would impair the ability of
the subservicer or the servicer, as applicable, to foreclose on an affected loan
during  the  mortgagor's   period  of  active  duty  status,   and,  under  some
circumstances,  during an additional three month period thereafter. Thus, if the
Relief Act or similar  legislation or regulations applies to any loan which goes
into  default,  there  may be  delays  in  payment  and  losses  on the  related
securities in connection therewith. Any other interest shortfalls,  deferrals or
forgiveness  of payments on the loans  resulting  from  similar  legislation  or
regulations may result in delays in payments or losses to  certificateholders of
the related series.

Default Interest and Limitations on Prepayments

     Notes and  mortgages may contain  provisions  that obligate the borrower to
pay a late charge or additional interest if payments are not timely made, and in
some  circumstances,  may prohibit  prepayments  for a specified  period  and/or
condition  prepayments  on the  borrower's  payment of prepayment  fees or yield
maintenance penalties.  In some states, there are or may be specific limitations
on the late charges  which a lender may collect  from a borrower for  delinquent
payments.  Some states also limit the amounts  that a lender may collect  from a
borrower  as an  additional  charge if the loan is  prepaid.  In  addition,  the
enforceability of provisions that provide for prepayment


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fees or penalties on an involuntary prepayment is unclear under the laws of many
states. Most conventional single-family mortgage loans may be prepaid in full or
in part without penalty. The regulations of the Federal Home Loan Bank Board, as
succeeded  by the OTS,  prohibit  the  imposition  of a  prepayment  penalty  or
equivalent fee for or in connection with the  acceleration of a loan by exercise
of a  due-on-sale  clause.  A mortgagee  to whom a  prepayment  in full has been
tendered  may be  compelled  to give  either a  release  of the  mortgage  or an
instrument  assigning  the  existing  mortgage.  The absence of a  restraint  on
prepayment,  particularly  for  mortgage  loans  having  higher loan rates,  may
increase  the  likelihood  of  refinancing  or other  early  retirements  of the
mortgage loans.

Forfeitures in Drug and RICO Proceedings

     Federal  law  provides  that  property   owned  by  persons   convicted  of
drug-related  crimes or of criminal  violations of the Racketeer  Influenced and
Corrupt  Organizations,  or RICO statute can be seized by the  government if the
property was used in, or purchased  with the  proceeds of, those  crimes.  Under
procedures  contained  in the  Comprehensive  Crime  Control  Act of  1984,  the
government may seize the property even before  conviction.  The government  must
publish notice of the  forfeiture  proceeding and may give notice to all parties
"known to have an alleged  interest in the  property,"  including the holders of
mortgage loans.

     A lender  may  avoid  forfeiture  of its  interest  in the  property  if it
establishes that:

o    its mortgage was executed and recorded  before  commission  of the crime on
     which the forfeiture is based; or

o    the lender  was,  at the time of  execution  of the  mortgage,  "reasonably
     without cause to believe" that the property was used in, or purchased  with
     the proceeds of, illegal drug or RICO activities.

Negative Amortization Loans

     A recent case held that state  restrictions  on the compounding of interest
are not preempted by the provisions of the depository Institutions  Deregulation
and Monetary  Control Act of 1980,  or DIDMC,  and as a result,  a mortgage loan
that provided for negative  amortization  violated New  Hampshire's  requirement
that first  mortgage  loans  provide  for  computation  of  interest on a simple
interest basis.  The court did not address the  applicability of the Alternative
Mortgage  Transaction  Parity  Act of 1982,  which  authorizes  a lender to make
residential mortgage loans that provide for negative amortization.  As a result,
the  enforceability  of compound  interest on  mortgage  loans that  provide for
negative  amortization  is  unclear.  The case,  which was  decided by the First
Circuit Court of Appeals,  is binding  authority only on Federal District Courts
in Maine, New Hampshire, Massachusetts, Rhode Island and Puerto Rico.

                    Material Federal Income Tax Consequences

General

     The following is a discussion of the material,  and certain other,  federal
income tax  consequences  of the  purchase,  ownership  and  disposition  of the
securities. Where appropriate,  additional consequences will be discussed in the
prospectus  supplement  relating to a  particular  series.  This  discussion  is
intended  as an  explanatory  discussion  of the  consequences  of  holding  the
securities  generally and does not purport to furnish information with the level
of detail  that  would be  expected  to be  provided  by an  investor's  own tax
advisor,  or with  consideration  of an investor's  specific tax  circumstances.
Accordingly,  it is recommended that each prospective  investor consult with its
own tax advisor  regarding the  application  of United States federal income tax
laws,  as well as any  state,  local,  foreign  or  other  tax  laws,  to  their
particular  situation.  Orrick,  Herrington  &  Sutcliffe  LLP,  counsel  to the
depositor,  rendered an opinion generally that the discussion in this section is
correct in all material  respects.  In addition,  counsel to the  depositor  has
rendered an opinion to the effect that: (1) with respect to each series of REMIC
or FASIT  certificates,  issued as described in this  prospectus and the related
prospectus  supplement,  the related mortgage pool, or portion thereof,  will be
classified as one or more REMICs or FASITs and not an  association  taxable as a
corporation - or publicly traded partnership treated as a corporation - and each
class of securities will represent  either a "regular"  interest or a "residual"
interest  in the REMIC or FASIT and (2) with  respect  to each  other  series of
securities, issued

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<PAGE>

as described  in this  prospectus  and the related  prospectus  supplement,  the
related trust fund will be a grantor  trust for federal  income tax purposes and
not an  association  taxable as a corporation - or publicly  traded  partnership
treated as a  corporation  - and each  holder of a  security  will be treated as
holding an equity interest in that grantor trust.  Prospective  investors should
be aware that counsel to the  depositor has not rendered any other tax opinions.
Further,  if with  respect  to any series of  securities  Orrick,  Herrington  &
Sutcliffe LLP is not counsel to the depositor,  depositor's then current counsel
will be  identified  in the related  prospectus  supplement  and will confirm or
supplement the aforementioned opinions.  Prospective investors should be further
aware that no rulings have been sought from the Internal Revenue Service,  known
as the IRS,  and that legal  opinions  are not binding on the IRS or the courts.
Accordingly,  there can be no  assurance  that the IRS or the courts  will agree
with counsel to the depositor's  opinions.  If, contrary to those opinions,  the
trust fund related to a series of  securities is  characterized  or treated as a
corporation  for federal  income tax purposes,  among other  consequences,  that
trust fund would be subject to federal  income tax and similar  state  income or
franchise  taxes on its income and  distributions  to holders of the  securities
could be impaired.

     The following summary is based on the Code as well as Treasury  regulations
and administrative and judicial rulings and practice. Legislative,  judicial and
administrative  changes may occur,  possibly with retroactive effect, that could
alter or modify the continued  validity of the  statements and  conclusions  set
forth in this  prospectus.  This summary does not purport to address all federal
income tax matters that may be relevant to particular holders of securities. For
example, it generally is addressed only to original purchasers of the securities
that are United States  investors,  deals only with  securities  held as capital
assets within the meaning of Section 1221 of the Code,  and does not address tax
consequences  to holders  that may be relevant to  investors  subject to special
rules,  such as  non-U.S.  investors,  banks,  insurance  companies,  tax-exempt
organizations,  electing large partnership, dealers in securities or currencies,
mutual funds, REITs, S corporations, estates and trusts, investors that hold the
securities as part of a hedge, straddle,  integrated or conversion  transaction,
or holders whose "functional currency" is not the United States dollar. Further,
it does not address alternative minimum tax consequences or the indirect effects
on the holders of equity  interests in any entity that is a beneficial  owner of
the securities. Further, this discussion does not address the state or local tax
consequences of the purchase,  ownership and disposition of those securities. It
is recommended that investors  consult their own tax advisors in determining the
federal,  state,  local,  or other  tax  consequences  to them of the  purchase,
ownership and  disposition of the securities  offered under this  prospectus and
the related prospectus supplement.

     The   following   discussion   addresses   REMIC  and  FASIT   certificates
representing  interests in a trust for which the transaction  documents  require
the making of an election to have the trust, or a portion thereof, be treated as
one or more  REMICs  or  FASITs  and  grantor  trust  certificates  representing
interests  in a grantor  trust.  The  prospectus  supplement  for each series of
securities will indicate  whether a REMIC or FASIT election or elections will be
made for the  related  trust  fund and,  if that  election  is to be made,  will
identify all "regular  interests"  and "residual  interests" in the REMIC or the
"regular interests" and "high yield regular interests" in the FASIT, as the case
may be. If  interests  in a FASIT  ownership  interest  are offered for sale the
federal income consequences of the purchase,  ownership and disposition of those
interests  will be  described in the  accompanying  prospectus  supplement.  For
purposes  of this  tax  discussion,  references  to a  "certificateholder"  or a
"holder" are to the beneficial owner of a certificate.

     Regulations specifically addressing certain of the issues discussed in this
prospectus  have not been issued or have been  issued only in proposed  form and
this discussion is based in part on regulations  that do not adequately  address
some  issues  relevant  to,  and in some  instances  provide  that  they are not
applicable to, securities similar to the securities.

Classification of REMICs and FASITs

     Upon the  issuance of each series of REMIC or FASIT  certificates,  Orrick,
Herrington & Sutcliffe LLP,  counsel to the depositor,  will deliver its opinion
to the effect  that,  assuming  compliance  with all  provisions  of the related
pooling and servicing agreement, or trust agreement,  the related trust fund, or
each  applicable  portion of the related trust fund,  will qualify as a REMIC or
FASIT,  as the case may be, and the  certificates  offered with respect  thereto
will be considered to be, or evidence the ownership of, "regular  interests," in
the  related  REMIC  or  FASIT  or,  solely  in the  case of  REMICs,  "residual
interests," in that REMIC. If with respect to any series,  Orrick,  Herrington &
Sutcliffe LLP is not counsel to the depositor, then depositor's counsel for such
series will be identified

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<PAGE>

in the related  prospectus  supplement  and will  confirm,  or  supplement,  the
aforementioned  opinions.  Opinions of counsel only  represent the views of that
counsel and are not binding on the IRS or the courts. Accordingly,  there can be
no assurance that the IRS and the courts will not take a differing position.

     The IRS  published  proposed  Treasury  regulations,  known as the Proposed
FASIT Regulations, supplementing the FASIT provisions of the Code on February 7,
2000,  but many issues remain  unresolved.  The Proposed FASIT  Regulations  are
subject to change with  potentially  retroactive  effect before being adopted as
final regulations.  The Proposed FASIT Regulations  contain an "anti-abuse" rule
that, among other things,  enables the IRS to disregard a FASIT election,  treat
one or more of the  assets of a FASIT as held by a person  other than the holder
of the ownership  interest in the FASIT, treat a FASIT regular interest as other
than a debt instrument or treat a regular  interest held by any person as having
the tax  characteristics  of one or more of the assets  held by the FASIT,  if a
principal  purpose  of  forming  or  using  the  FASIT  was to  achieve  results
inconsistent  with the intent of the FASIT  provisions  and the  Proposed  FASIT
Regulations  based on all the facts and  circumstances.  Among the  requirements
that the Proposed FASIT Regulations state for remaining within the intent of the
FASIT  provisions  is that no FASIT  provision  be used to obtain a federal  tax
result that could not be obtained  without the use of that provision  unless the
provision  clearly  contemplates  that result.  The only general intent that the
Proposed FASIT  Regulations  attribute to the FASIT provisions is to promote the
spreading   of  credit  risk  on  debt   instruments   by   facilitating   their
securitization.  The "anti-abuse"  provisions of the Proposed FASIT  Regulations
are proposed to be  effective  as of February 4, 2000.  Although any FASIT whose
certificates  are offered  pursuant to this  prospectus  will be  structured  to
reduce the likelihood that the IRS would recharacterize the tax treatment of the
offered   certificates,   the  anti-abuse   provisions  of  the  Proposed  FASIT
Regulations   are   sufficiently   broad  and  vague  that  the   avoidance   of
recharacterization cannot be assured. Investors should be cautious in purchasing
any  of  the  certificates  and  should  consult  with  their  tax  advisors  in
determining the federal, state, local and other tax consequences to them for the
purchase, holding and disposition of the certificates.

     In  addition,   certain   FASIT   regular   interests,   or  FASIT  Regular
Certificates,  may be treated as "high-yield  regular interests." Special rules,
discussed below apply to those securities.  Although the accompanying prospectus
supplement  will indicate  which FASIT  securities are expected to be treated as
"high-yield  regular  interests,"  in many  cases it will not be clear as of the
date of the prospectus  supplement,  and possibly not even after the issuance of
the securities, whether any particular class will actually be so treated.

     If an entity  electing  to be treated  as a REMIC or FASIT  fails to comply
with one or more of the ongoing  requirements of the Code for that status during
any taxable  year,  the Code  provides  that the entity will not be treated as a
REMIC or FASIT for that year and  thereafter.  In that event,  the entity may be
taxable as a separate  corporation under Treasury  regulations,  and the related
certificates may not be accorded the status or given the tax treatment described
in this prospectus  under "Material  Federal Income Tax  Consequences."  The IRS
may, but is not compelled to provide relief but any relief may be accompanied by
sanctions,  including  the  imposition of a corporate tax on all or a portion of
the trust's income for the period in which the  requirements for that status are
not satisfied. The proposed FASIT regulations provide that, upon the termination
of a FASIT, FASIT regular interest holders are treated as exchanging their FASIT
regular  interests  for  new  interests  in the  trust.  The new  interests  are
characterized under general tax principals, and the deemed exchange of the FASIT
regular  interests  for new interests in the trust may require the FASIT regular
interest holders to recognize gain, but not loss. The resulting  non-FASIT trust
could be characterized  as a partnership or as a publicly traded  partnership or
association  taxable  as  a  corporation,  with  adverse  tax  consequences  for
investors. The pooling and servicing agreement, indenture or trust agreement for
each REMIC or FASIT will  include  provisions  designed to maintain  the related
trust fund's status as a REMIC or FASIT. It is not  anticipated  that the status
of any trust fund as a REMIC or FASIT will be  terminated,  but, as noted in the
discussion of the FASIT  "anti-abuse"  provisions  above,  it is not possible to
assure against recharacterization of a FASIT by the IRS.

Taxation of Owners of REMIC and FASIT Regular Certificates

     General. In general,  REMIC and FASIT Regular  Certificates will be treated
for  federal  income  tax  purposes  as debt  instruments  and not as  ownership
interests  in the REMIC or FASIT or its  assets.  Moreover,  holders  of Regular
Certificates that otherwise report income under a cash method of accounting will
be required to report income for Regular Certificates under an accrual method.

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<PAGE>

     Original Issue Discount.  Some REMIC or FASIT Regular  Certificates  may be
issued with  "original  issue  discount," or OID,  within the meaning of Section
1273(a) of the Code.  Any holders of Regular  Certificates  issued with original
issue discount  typically will be required to include original issue discount in
income as it accrues,  in accordance with the method described below, in advance
of the receipt of the cash  attributable  to that income.  In addition,  Section
1272(a)(6) of the Code provides special rules applicable to Regular Certificates
and  certain  other  debt  instruments  issued  with  original  issue  discount.
Regulations have not been issued under that section.

     The Code requires that a prepayment  assumption be used for loans held by a
REMIC or FASIT in computing  the accrual of original  issue  discount on Regular
Certificates  issued by that issuer,  and that adjustments be made in the amount
and rate of accrual of the  discount to reflect  differences  between the actual
prepayment rate and the prepayment  assumption.  The prepayment assumption is to
be determined in a manner  prescribed in Treasury  regulations;  as noted above,
those  regulations  have  not  been  issued.  The  conference  committee  report
accompanying  the Tax Reform Act of 1986  indicates  that the  regulations  will
provide that the prepayment  assumption used for a Regular  Certificate  must be
the  same  as  that  used  in  pricing  the  initial  offering  of  the  Regular
Certificate. The prepayment assumption used by the servicer, the subservicer, or
the REMIC or FASIT  administrator,  as applicable,  in reporting  original issue
discount for each series of Regular  Certificates  will be consistent  with this
standard  and  will be  disclosed  in the  accompanying  prospectus  supplement.
However, none of the depositor, the REMIC or FASIT administrator, as applicable,
or the servicer or subservicer will make any representation  that the loans will
in fact prepay at a rate conforming to the prepayment assumption or at any other
rate.

     The  original  issue  discount,  if  any,  on  a  REMIC  or  FASIT  Regular
Certificate  will be the excess of its stated  redemption price at maturity over
its issue price. The issue price of a particular  class of Regular  Certificates
will  be the  first  cash  price  at  which  a  substantial  amount  of  Regular
Certificates of that class is sold, excluding sales to bond houses,  brokers and
underwriters. If less than a substantial amount of a particular class of Regular
Certificates is sold for cash on or prior to the date of their initial issuance,
or the closing date,  the issue price for that class will be treated as the fair
market value of the class on the closing date.  Under the OID  regulations,  the
stated redemption price of a REMIC or FASIT Regular  Certificate is equal to the
total of all  payments  to be made on that  certificate  other  than  "qualified
stated   interest."   Qualified  stated  interest   includes  interest  that  is
unconditionally payable at least annually at a single fixed rate, or in the case
of  a  variable  rate  debt  instrument,  at a  "qualified  floating  rate,"  an
"objective  rate,"  a  combination  of a  single  fixed  rate  and  one or  more
"qualified  floating  rates"  or one  "qualified  inverse  floating  rate," or a
combination of "qualified floating rates" that in most cases does not operate in
a manner that accelerates or defers interest payments on a Regular Certificate.

     In the case of Regular  Certificates bearing adjustable interest rates, the
determination  of the total amount of original  issue discount and the timing of
the  inclusion  of the  original  issue  discount  will  vary  according  to the
characteristics  of the Regular  Certificates.  If the original  issue  discount
rules apply to the  certificates,  the accompanying  prospectus  supplement will
describe  the manner in which the rules will be  applied  by the  servicer,  the
subservicer,  or  REMIC  or  FASIT  administrator,   as  applicable,  for  those
certificates in preparing information returns to the  certificateholders and the
IRS.

     Some classes of the Regular Certificates may provide for the first interest
payment with respect to their  certificates to be made more than one month after
the date of  issuance,  a period  which is longer  than the  subsequent  monthly
intervals between interest  payments.  Assuming the "accrual period," as defined
below, for original issue discount is each monthly period that begins or ends on
a distribution date, in some cases, as a consequence of this "long first accrual
period,"  some or all  interest  payments  may be required to be included in the
stated redemption price of the Regular Certificate and accounted for as original
issue discount.  Because interest on Regular  Certificates  must in any event be
accounted for under an accrual  method,  applying this analysis  would result in
only a slight  difference  in the timing of the inclusion in income of the yield
on the Regular Certificates.

     In addition,  if the accrued interest to be paid on the first  distribution
date is computed for a period that begins  prior to the closing  date, a portion
of the purchase  price paid for a Regular  Certificate  will reflect the accrued
interest. In these cases,  information returns to the certificateholders and the
IRS will be based on the position  that the portion of the  purchase  price paid
for the  interest  accrued for periods  prior to the closing  date is treated as
part of the overall cost of the Regular Certificate, and not as a separate asset
the cost of which is  recovered  entirely  out of interest  received on the next
distribution  date,  and  that  portion  of  the  interest  paid  on  the  first
distribution date in


                                       76
<PAGE>

excess of interest  accrued for a number of days  corresponding to the number of
days from the closing date to the first  distribution date should be included in
the  stated  redemption  price  of the  Regular  Certificate.  However,  the OID
regulations  state  that all or some  portion  of the  accrued  interest  may be
treated  as a  separate  asset the cost of which is  recovered  entirely  out of
interest paid on the first  distribution  date. It is unclear how an election to
do so would be made under the OID regulations and whether that election could be
made unilaterally by a certificateholder.

     Regardless of the general  definition of original issue discount,  original
issue discount on a Regular  Certificate  will be considered to be de minimis if
it is less than 0.25% of the stated redemption price of the Regular  Certificate
multiplied by its weighted average life. For this purpose,  the weighted average
life  of  the  Regular  Certificate  is  computed  as the  sum  of  the  amounts
determined,  as to each payment  included in the stated  redemption price of the
Regular Certificate, by multiplying:

o    the number of complete  years,  rounding down for partial  years,  from the
     issue date until the payment is expected to be made, presumably taking into
     account the prepayment assumption;

           by

o    a fraction,  the  numerator of which is the amount of the payment,  and the
     denominator  of which is the stated  redemption  price at  maturity  of the
     Regular Certificate.

Under the OID regulations,  original issue discount of only a de minimis amount,
other  than de minimis  original  issue  discount  attributable  to a  so-called
"teaser"  interest  rate or an initial  interest  holiday,  will be  included in
income as each payment of stated  principal is made, based on the product of the
total  amount of the de minimis  original  issue  discount  and a fraction,  the
numerator of which is the amount of the principal payment and the denominator of
which is the outstanding stated principal amount of the Regular Certificate. The
OID  regulations  also would  permit a  certificateholder  to elect to accrue de
minimis  original issue discount into income currently based on a constant yield
method.  See "--Market  Discount" in this  prospectus  for a description of that
election under the OID regulations.

     If original  issue  discount on a Regular  Certificate is in excess of a de
minimis  amount,  the holder of the  certificate  must include in ordinary gross
income the sum of the "daily  portions" of original  issue discount for each day
during its taxable year on which it held the Regular Certificate,  including the
purchase  date but excluding  the  disposition  date. In the case of an original
holder of a Regular  Certificate,  the daily portions of original issue discount
will be determined as follows.

     The "accrual period" as used in this section will be:

o    the period that begins or ends on a date that corresponds to a distribution
     date and  begins on the  first  day  following  the  immediately  preceding
     accrual period,  or in the case of the first accrual period,  begins on the
     closing date; or

o    such other period as described in the related prospectus supplement.

As to each  accrual  period,  a  calculation  will be made of the portion of the
original issue discount that accrued during that accrual period.  The portion of
original  issue  discount  that  accrues in any  accrual  period  will equal the
excess, if any, of:

       (1) the sum of:

o    the  present  value,  as of the end of the  accrual  period,  of all of the
     distributions  remaining to be made on the Regular Certificate,  if any, in
     future periods; and

o    the distributions made on the Regular Certificate during the accrual period
     of amounts included in the stated redemption price;

           over

      (2)  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 will be calculated:



                                       77
<PAGE>

       (1) assuming  that  distributions  on the  Regular  Certificate  will  be
           received in future periods based on the loans being prepaid at a rate
           equal to the prepayment assumption; and

      (2)  using a discount  rate equal to the  original  yield to  maturity of
           the certificate.

For these purposes,  the original yield to maturity of the  certificate  will be
calculated  based on its issue  price and  assuming  that  distributions  on the
certificate will be made in all accrual periods based on the loans being prepaid
at a rate equal to the  prepayment  assumption.  The  adjusted  issue price of a
Regular  Certificate at the beginning of any accrual period will equal the issue
price of the  certificate,  increased by the aggregate  amount of original issue
discount that accrued for that certificate in prior accrual periods, and reduced
by the amount of any  distributions  made on that Regular  Certificate  in prior
accrual periods of amounts included in its stated redemption price. The original
issue discount accruing during any accrual period,  computed as described above,
will be allocated ratably to each day during the accrual period to determine the
daily portion of original issue discount for that day.

     The OID  regulations  suggest that original  issue  discount for securities
that represent multiple  uncertificated  regular  interests,  in which ownership
interests  will be  issued  simultaneously  to the same  buyer  and which may be
required  under the related  pooling and servicing  agreement to be  transferred
together,  should be computed on an aggregate  method. In the absence of further
guidance from the IRS, original issue discount for securities that represent the
ownership of multiple  uncertificated  regular interests will be reported to the
IRS and the  certificateholders on an aggregate method based on a single overall
constant  yield  and  the  prepayment  assumption  stated  in  the  accompanying
prospectus supplement, treating all uncertificated regular interests as a single
debt instrument as set forth in the OID regulations,  so long as the pooling and
servicing  agreement  requires  that the  uncertificated  regular  interests  be
transferred together.

     A  subsequent  purchaser  of  a  Regular  Certificate  that  purchases  the
certificate  at a cost,  excluding  any  portion  of that cost  attributable  to
accrued  qualified  stated interest,  less than its remaining stated  redemption
price will also be required to include in gross income the daily portions of any
original issue discount for that certificate.  However,  each daily portion will
be  reduced,  if the  cost  is in  excess  of its  "adjusted  issue  price,"  in
proportion  to the ratio  that  excess  bears to the  aggregate  original  issue
discount remaining to be accrued on the Regular Certificate.  The adjusted issue
price of a Regular Certificate on any given day equals:

o    the adjusted issue price or, in the case of the first accrual  period,  the
     issue price,  of the  certificate  at the  beginning of the accrual  period
     which includes that day;

           plus

o    the daily  portions  of  original  issue  discount  for all days during the
     accrual period prior to that day;

           minus

o    any principal payments made during the accrual period prior to that day for
     the certificate.

     Market Discount.  A certificateholder  that purchases a Regular Certificate
at a market  discount,  that is,  in the case of a  Regular  Certificate  issued
without  original  issue  discount,  at a purchase price less than its remaining
stated principal  amount,  or in the case of a Regular  Certificate  issued with
original issue discount,  at a purchase price less than its adjusted issue price
will  recognize  income on  receipt  of each  distribution  representing  stated
redemption  price.  In  particular,  under  Section  1276  of  the  Code  such a
certificateholder in most cases will be required to allocate the portion of each
distribution  representing  stated  redemption  price  first to  accrued  market
discount not previously  included in income, and to recognize ordinary income to
that extent.

     A  certificateholder  may  elect  to  include  market  discount  in  income
currently  as it  accrues  rather  than  including  it on a  deferred  basis  in
accordance  with the  foregoing.  If made, the election will apply to all market
discount  bonds acquired by the  certificateholder  on or after the first day of
the first  taxable year to which the  election  applies.  In  addition,  the OID
regulations  permit  a  certificateholder  to  elect  to  accrue  all  interest,
discount, including de minimis market or original issue discount, and premium in
income as interest,  based on a constant yield method. If the election were made
for a Regular Certificate with market discount,  the certificateholder  would be
deemed to have made an election to include  currently  market discount in income
for all other debt instruments having market discount that the certificateholder
acquires during the taxable year of the election or thereafter.

                                       78
<PAGE>

Similarly, a certificateholder that made this election for a certificate that is
acquired at a premium  would be deemed to have made an election to amortize bond
premium  for all debt  instruments  having  amortizable  bond  premium  that the
certificateholder owns or acquires. See "--Premium" in this prospectus.  Each of
these elections to accrue interest,  discount and premium for a certificate on a
constant  yield method or as interest may not be revoked  without the consent of
the IRS.

     However, market discount for a Regular Certificate will be considered to be
de minimis for  purposes of Section  1276 of the Code if the market  discount is
less  than  0.25%  of the  remaining  stated  redemption  price  of the  Regular
Certificate  multiplied  by the number of complete  years to maturity  remaining
after the date of its  purchase.  In  interpreting  a similar  rule for original
issue discount on obligations payable in installments, the OID regulations refer
to the weighted average maturity of obligations,  and it is likely that the same
rule will be applied for market  discount,  presumably  taking into  account the
prepayment  assumption.  If market  discount is treated as de minimis under this
rule, it appears that the actual  discount  would be treated in a manner similar
to  original  issue  discount of a de minimis  amount.  See "--  Original  Issue
Discount"  in this  prospectus.  This  treatment  may result in  discount  being
included  in  income at a slower  rate than  discount  would be  required  to be
included in income using the method described above.

     Section  1276(b)(3)  of  the  Code  specifically  authorizes  the  Treasury
Department to issue  regulations  providing  for the method for accruing  market
discount on debt instruments, the principal of which is payable in more than one
installment.  Until regulations are issued by the Treasury  Department,  certain
rules described in the Committee  Report apply.  The Committee  Report indicates
that in each  accrual  period  market  discount on Regular  Certificates  should
accrue, at the certificateholder's option:

o    on the basis of a constant yield method;

o    in  the  case  of a  Regular  Certificate  issued  without  original  issue
     discount,  in an amount  that bears the same  ratio to the total  remaining
     market  discount as the stated interest paid in the accrual period bears to
     the total  amount of stated  interest  remaining  to be paid on the Regular
     Certificate as of the beginning of the accrual period; or

o    in the case of a Regular  Certificate  issued with original issue discount,
     in an amount  that  bears  the same  ratio to the  total  remaining  market
     discount as the original issue discount accrued in the accrual period bears
     to the total original issue discount  remaining on the Regular  Certificate
     at the beginning of the accrual period.

Moreover,  the prepayment assumption used in calculating the accrual of original
issue  discount is to be used in  calculating  the  accrual of market  discount.
Because the regulations  referred to in this paragraph have not been issued,  it
is not possible to predict what effect those  regulations  might have on the tax
treatment  of a Regular  Certificate  purchased  at a discount in the  secondary
market.

     To the  extent  that  Regular  Certificates  provide  for  monthly or other
periodic  distributions  throughout their term, the effect of these rules may be
to require  market  discount  to be  includible  in income at a rate that is not
significantly slower than the rate at which the discount would accrue if it were
original  issue  discount.  Moreover,  in  any  event  a  holder  of  a  Regular
Certificate in most cases will be required to treat a portion of any gain on the
sale or exchange  of that  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.

     In  addition,  under  Section  1277 of the  Code,  a  holder  of a  Regular
Certificate  may be required to defer a portion of its interest  deductions  for
the taxable  year  attributable  to any  indebtedness  incurred or  continued to
purchase or carry a Regular  Certificate  purchased  with market  discount.  For
these  purposes,  the de minimis rule  referred to above  applies.  Any deferred
interest  expense would not exceed the market  discount that accrues during that
taxable year and is, in general,  allowed as a deduction not later than the year
in which the market  discount is includible  in income.  If the holder elects to
include market discount in income currently as it accrues on all market discount
instruments  acquired by that holder in that  taxable  year or  thereafter,  the
interest deferral rule described above will not apply.

                                       79
<PAGE>

     Premium. A Regular Certificate  purchased at a cost,  excluding any portion
of that cost attributable to accrued qualified stated interest, greater than its
remaining  stated  redemption  price will be  considered  to be  purchased  at a
premium.  The holder of a Regular Certificate may elect under Section 171 of the
Code to amortize that premium  under the constant  yield method over the life of
the  certificate.  If made,  this  election  will apply to all debt  instruments
having  amortizable bond premium that the holder owns or subsequently  acquires.
Amortizable  premium  will be  treated  as an offset to  interest  income on the
related Regular Certificate,  rather than as a separate interest deduction.  The
OID regulations also permit certificateholders to elect to include all interest,
discount  and  premium  in income  based on a  constant  yield  method,  further
treating the  certificateholder  as having made the election to amortize premium
generally. See "--Market Discount" in this prospectus.  The conference committee
report  states  that the same rules  that  apply to accrual of market  discount,
which  rules will  require use of a  prepayment  assumption  in accruing  market
discount for Regular  Certificates  without regard to whether those certificates
have original issue  discount,  will also apply in amortizing bond premium under
Section 171 of the Code.

     Realized Losses.  Under Section 166 of the Code, both corporate  holders of
the Regular  Certificates and noncorporate  holders of the Regular  Certificates
that acquire those certificates in connection with a trade or business should be
allowed to deduct,  as ordinary  losses,  any losses  sustained during a taxable
year in which their  certificates  become  wholly or partially  worthless as the
result of one or more Realized Losses on the loans.  However,  it appears that a
noncorporate  holder that does not acquire a Regular  Certificate  in connection
with a trade or business will not be entitled to deduct a loss under Section 166
of the Code until the holder's  certificate becomes wholly worthless,  until its
outstanding  principal  balance has been reduced to zero, and that the loss will
be characterized as a short-term capital loss.

     Each holder of a Regular  Certificate  will be required to accrue  interest
and original issue discount for that  certificate,  without giving effect to any
reductions in  distributions  attributable to defaults or  delinquencies  on the
loans  or the  underlying  certificates  until  it can be  established  that any
reduction ultimately will not be recoverable. As a result, the amount of taxable
income  reported  in any  period by the  holder of a Regular  Certificate  could
exceed the amount of  economic  income  actually  realized by the holder in that
period. Although the holder of a Regular Certificate eventually will recognize a
loss or  reduction in income  attributable  to  previously  accrued and included
income that, as the result of a Realized Loss,  ultimately will not be realized,
the law is unclear  with  respect to the  timing  and  character  of the loss or
reduction in income.

     Special Rules for FASIT High-Yield Regular Interests.

     General.  A  high-yield  interest  in a FASIT is a  subcategory  of a FASIT
regular  interest.  A FASIT  high-yield  regular  interest  is a  FASIT  regular
interest that either:

o    has an issue price that exceeds 125% of its stated principal amount;

o    has a yield  to  maturity  equal to or  greater  than a  specified  amount,
     generally 500 basis points above the appropriate applicable federal rate;

o    is  an  interest-only  obligation  whose  interest  payments  consist  of a
     non-varying specified portion of the interest payments on permitted assets.

A holder  of a FASIT  high-yield  regular  interest  is  subject  to  treatment,
described above, applicable to FASIT Regular Interests, generally.

     Limitations  on  Utilization  of Losses.  The holder of a FASIT  high-yield
regular  interest  may not offset its income  derived  thereon by any  unrelated
losses.  Thus,  the  taxable  income of a holder of a FASIT  high-yield  regular
interest  will be at  least  equal  to the  taxable  income  derived  from  that
interest,  which  includes  gain or loss from the sale of those  interests,  any
FASIT  ownership  interests and any excess  inclusion  income derived from REMIC
residual interests. Thus, income from those interests generally cannot be offset
by current net operating losses or net operating loss carryovers. Similarly, the
alternative  minimum  taxable  income  of the  holder  of a  high-yield  regular
interest cannot be less than that holder's taxable income  determined solely for
those interests. For purposes of these provisions,  all members of an affiliated
group filing a consolidated return are treated as one taxpayer. Accordingly, the
consolidated  taxable  income  of the  group  cannot  be less  than the  group's
"tainted"  income,  thereby  preventing losses of one member from offsetting the
tainted income of another member.  However,  to avoid doubly penalizing  income,
net


                                       80
<PAGE>

operating loss carryovers are determined  without regard to that income for both
regular tax and alternative minimum tax purposes.

     Transfer  Restrictions.  Transfers of FASIT high-yield Regular Certificates
to certain  "disqualified  holders"  will,  absent the  satisfaction  of certain
conditions,  be disregarded for federal income tax purposes.  In that event, the
most recent eligible holder, generally the transferring holder, will continue to
be taxed as if it were the holder of the certificate,  although the disqualified
holder,  and not the most recent eligible  holder,  would be taxable on any gain
recognized  by that  holder for the  related  interest.  Although  not free from
doubt, the tax ownership of a FASIT high-yield  Regular  Certificate may, absent
the  satisfaction  of certain  conditions,  revert to a prior holder even if the
transferee becomes a disqualified holder after the relevant transfer.

     Each  applicable  pooling  and  servicing  agreement,  trust  agreement  or
indenture  requires,  as a  prerequisite  to any transfer of a FASIT  high-yield
Regular  Certificate,  the  delivery  to  the  trustee  of an  affidavit  of the
transferee  to the effect  that it is not a  disqualified  holder  and  contains
certain other provisions designed to preclude the automatic reversion of the tax
ownership of that certificate.  For these purposes,  a "disqualified  holder' is
any person other than a:

o    FASIT; or

o    domestic C  corporation,  other than a corporation  that is exempt from, or
     not subject to,  federal  income tax;  provided,  however,  that all of the
     following are also "disqualified holders":

o    regulated  investment  companies  subject  to the  provisions  of Part I of
     subchapter M of the Code;

o    real  estate  investment  trusts  subject to the  provisions  of Part II of
     subchapter M of the Code;

o    REMICs; and

o    cooperatives described in Section 1381(a) of the Code.

     Pass-through Entities Holding FASIT Regular Certificates. If a Pass-Through
Entity issues a  high-yielding  debt or equity interest that is supported by any
FASIT Regular  Interest,  that entity will be subject to an excise tax unless no
principal  purpose  of the  resecuritization  was  the  avoidance  of the  rules
relating to FASIT high-yield interests,  pertaining to eligible holders of those
interests.    See   "Taxation   of   Owners   of   REMIC   and   FASIT   Regular
Certificates--Taxation     of    Holders    of    FASIT    High-yield    Regular
Interests--Transfer  Restrictions" in this prospectus. The tax will apply if the
original  yield to maturity of the debt or equity  interest in the  Pass-Through
Entity exceeds the greater of:

      (1)  the sum of:

o    the  applicable  federal rate in effect for the calendar month in which the
     debt or equity interest is issued; and

o    five percentage points; or

     (2)  the yield to maturity to such  entity on the FASIT  Regular  Interest,
          determined as of the date that the entity acquired its interest.

     The Code provides that Treasury  regulations  will be issued to provide the
manner in which to  determine  the yield to  maturity  of any  equity  interest,
however no regulations  have yet been issued.  If a tax did apply, the tax would
equal the product of:

     o    the highest corporate tax rate; and

     o    the  income  of the  holder  of the debt or  equity  interest  that is
          properly  attributable  to the FASIT Regular  Interest  supporting the
          equity interest.

                                       81
<PAGE>

Taxation of Owners of REMIC Residual Certificates

     General.  As residual  interests,  the REMIC Residual  Certificates will be
subject to tax rules that  differ  significantly  from those that would apply if
the REMIC Residual  Certificates were treated for federal income tax purposes as
direct  ownership  interests in the loans or as debt  instruments  issued by the
REMIC.

     A holder of a REMIC  Residual  Certificate  generally  will be  required to
report  its daily  portion of the  taxable  income  or, in  accordance  with the
limitations  noted in this  discussion,  the net loss of the  REMIC for each day
during a calendar quarter that the holder owned the REMIC Residual  Certificate.
For this purpose,  the taxable income or net loss of the REMIC will be allocated
to each day in the calendar  quarter  ratably using a "30 days per month/90 days
per quarter/360  days per year" convention or some other convention if stated in
the accompanying prospectus supplement. The daily amounts will then be allocated
among the REMIC residual  certificateholders  in proportion to their  respective
ownership  interests  on that day.  Any amount  included in the gross  income or
allowed  as a loss of any  REMIC  residual  certificateholder  by virtue of this
allocation will be treated as ordinary income or loss. The taxable income of the
REMIC  will be  determined  under  the rules  described  in this  prospectus  in
"--Taxable  Income of the  REMIC"  and will be  taxable  to the  REMIC  residual
certificateholders  without regard to the timing or amount of cash distributions
by the REMIC.  Ordinary income derived from REMIC Residual  Certificates will be
"portfolio  income" for purposes of the taxation of taxpayers in accordance with
limitations  under  Section  469 of the Code on the  deductibility  of  "passive
losses."

     A holder of a REMIC Residual  Certificate  that  purchased the  certificate
from a prior holder of that  certificate  also will be required to report on its
federal income tax return amounts  representing its daily portion of the taxable
income or net loss of the  REMIC  for each day that it holds the REMIC  Residual
Certificate.  These daily  portions  generally will equal the amounts of taxable
income or net loss determined as described above. The committee report indicates
that modifications of the general rules may be made, by regulations, legislation
or otherwise,  to reduce,  or increase,  the income or loss of a REMIC  residual
certificateholder  that  purchased the REMIC Residual  Certificate  from a prior
holder of the  certificate  at a price greater than, or less than,  the adjusted
basis, as defined below,  that REMIC Residual  Certificate would have had in the
hands of an original holder of that certificate. The REMIC regulations, however,
do not provide for any such modifications.

     Any payments received by a REMIC residual  certificateholder  in connection
with the  acquisition  of that  REMIC  Residual  Certificate  will be taken into
account in determining the income of the holder for federal income tax purposes.
Although  it appears  likely  that any  payment  would be  includible  in income
immediately  on its  receipt,  the IRS might  assert that the payment  should be
included in income over time according to an amortization  schedule or according
to some other method.  Because of the  uncertainty  concerning  the treatment of
these payments,  holders of REMIC Residual Certificates should consult their tax
advisors concerning the treatment of these payments for income tax purposes.

     The amount of income REMIC residual  certificateholders will be required to
report, or the tax liability  associated with that income, may exceed the amount
of cash  distributions  received  from the REMIC for the  corresponding  period.
Consequently,  REMIC  residual  certificateholders  should have other sources of
funds  sufficient  to pay any  federal  income  taxes  due as a result  of their
ownership of REMIC Residual  Certificates or unrelated  deductions against which
income may be offset,  subject to the rules relating to "excess  inclusions" and
"noneconomic"  residual  interests  discussed  below.  The  fact  that  the  tax
liability   associated   with   the   income   allocated   to   REMIC   residual
certificateholders  may  exceed  the cash  distributions  received  by the REMIC
residual  certificateholders  for the  corresponding  period  may  significantly
adversely affect the REMIC residual certificateholders after-tax rate of return.

     Taxable Income of the REMIC. The taxable income of the REMIC will equal the
income  from the loans and other  assets of the REMIC plus any  cancellation  of
indebtedness  income  due  to the  allocation  of  Realized  Losses  to  Regular
Certificates,  less the deductions allowed to the REMIC for interest,  including
original issue discount and reduced by the  amortization of any premium received
on  issuance,  on the  Regular  Certificates,  and  any  other  class  of  REMIC
certificates  constituting  "regular interests" in the REMIC not offered hereby,
amortization of any premium on the loans, bad debt deductions for the loans and,
except as described below, for servicing, administrative and other expenses.

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<PAGE>

     For  purposes of  determining  its taxable  income,  the REMIC will have an
initial  aggregate  basis  in its  assets  equal  to  their  fair  market  value
immediately  after their transfer to the REMIC. For this purpose,  the servicer,
the subservicer,  or REMIC  administrator,  as applicable,  intends to treat the
fair market value of the loans as being equal to the  aggregate  issue prices of
the Regular  Certificates and REMIC Residual  Certificates.  The aggregate basis
will be allocated among the loans collectively and the other assets of the REMIC
in proportion to their  respective  fair market  values.  The issue price of any
REMIC certificates  offered hereby will be determined in the manner described in
this  prospectus  under  "--Taxation  of  Owners  of  REMIC  and  FASIT  Regular
Certificates--Original  Issue Discount." Accordingly,  if one or more classes of
REMIC  certificates are retained  initially rather than sold, the servicer,  the
subservicer, or REMIC administrator,  as applicable, may be required to estimate
the fair market value of those  interests in order to determine the basis of the
REMIC in the loans and other property held by the REMIC.

     Subject to the possible  application of the de minimis rules, the method of
accrual by the REMIC of  original  issue  discount  income  and market  discount
income  for loans  that it holds will be  equivalent  to the method of  accruing
original  issue  discount  income  for  regular  certificateholders;  under  the
constant yield method taking into account the prepayment assumption.  However, a
REMIC that acquires collateral at a market discount must include the discount in
income currently,  as it accrues, on a constant interest basis. See "-- Taxation
of Owners of REMIC and FASIT Regular  Certificates"  in this  prospectus,  which
describes  a method  of  accruing  discount  income  that is  analogous  to that
required to be used by a REMIC as to loans with market discount that it holds.

     A loan will be deemed to have been acquired with discount or premium to the
extent that the  REMIC's  basis in that loan,  determined  as  described  in the
preceding  paragraph,  is less than or greater than its stated redemption price.
Any discount  will be  includible  in the income of the REMIC as it accrues,  in
advance of  receipt  of the cash  attributable  to that  income,  under a method
similar to the method  described  above for accruing  original issue discount on
the Regular  Certificates.  It is  anticipated  that each REMIC will elect under
Section  171 of the Code to amortize  any  premium on the loans.  Premium on any
loan to which the  election  applies  may be  amortized  under a constant  yield
method, presumably taking into account a prepayment assumption.

     A REMIC will be allowed  deductions for interest,  including original issue
discount,  on the  Regular  Certificates,  including  any  other  class of REMIC
certificates  constituting  "regular interests" in the REMIC not offered hereby,
equal to the  deductions  that  would be allowed  if the  Regular  Certificates,
including any other class of REMIC certificates constituting "regular interests"
in the REMIC not offered hereby, were indebtedness of the REMIC.  Original issue
discount  will be  considered  to accrue for this  purpose as  described in this
prospectus   under   "--Taxation   of  Owners   of  REMIC   and  FASIT   Regular
Certificates--Original  Issue Discount," except that the de minimis rule and the
adjustments for subsequent holders of Regular Certificates,  including any other
class of certificates  constituting "regular interests" in the REMIC not offered
hereby,  described in this prospectus  under  "--Taxation of Owners of REMIC and
FASIT Regular Certificates--Original Issue Discount," will not apply.

     If a class of Regular  Certificates is issued at an Issue Premium,  the net
amount of interest  deductions  that are allowed the REMIC in each  taxable year
for the Regular Certificates of that class will be reduced by an amount equal to
the portion of the Issue Premium that is considered to be amortized or repaid in
that year.  Although the matter is not entirely certain, it is likely that Issue
Premium would be amortized  under a constant yield method in a manner  analogous
to the method of accruing  original issue discount  described in this prospectus
under  "--Taxation  of Owners of REMIC and FASIT Regular  Certificates--Original
Issue Discount."

     As a general  rule,  the taxable  income of the REMIC will be determined in
the same manner as if the REMIC were an  individual  having the calendar year as
its taxable year and using the accrual method of accounting. However, no item of
income,  gain, loss or deduction  allocable to a prohibited  transaction will be
taken into  account.  See  "--Prohibited  Transactions  and Other Taxes" in this
prospectus. Further, the limitation on miscellaneous itemized deductions imposed
on individuals by Section 67 of the Code,  which allows those deductions only to
the extent they exceed in the aggregate two percent of the  taxpayer's  adjusted
gross  income,  will not be applied at the REMIC level so that the REMIC will be
allowed deductions for servicing, administrative and other non-interest expenses
in determining its taxable income.  All of these expenses will be allocated as a
separate  item to the  holders of REMIC  Residual  Certificates,  subject to the
limitation  of  Section  67  of  the  Code.  See  "--Possible   Pass-Through  of
Miscellaneous Itemized Deductions" in this prospectus. If the deductions allowed
to the REMIC exceed its gross income for a calendar quarter,  the excess will be
the net loss for the REMIC for that calendar quarter.

                                       83
<PAGE>

     Basis Rules,  Net Losses and  Distributions.  The adjusted basis of a REMIC
Residual  Certificate  will be equal to the amount paid for that REMIC  Residual
Certificate,  increased  by  amounts  included  in the  income  of  the  related
certificateholder and decreased,  but not below zero, by distributions made, and
by net losses allocated, to the related certificateholder.

     A REMIC residual  certificateholder is not allowed to take into account any
net loss for any  calendar  quarter to the extent the net loss exceeds the REMIC
residual certificateholder's adjusted basis in its REMIC Residual Certificate as
of the close of that  calendar  quarter,  determined  without  regard to the net
loss. Any loss that is not currently deductible by reason of this limitation may
be carried forward  indefinitely to future calendar  quarters and, in accordance
with the same  limitation,  may be used  only to  offset  income  from the REMIC
Residual Certificate. The ability of REMIC residual certificateholders to deduct
net losses in accordance with additional limitations under the Code, as to which
the certificateholders should consult their tax advisors.

     Any  distribution  on a REMIC  Residual  Certificate  will be  treated as a
non-taxable  return of capital  to the  extent it does not  exceed the  holder's
adjusted basis in the REMIC Residual  Certificate.  To the extent a distribution
on a REMIC Residual  Certificate  exceeds the adjusted basis, it will be treated
as gain  from the  sale of the  REMIC  Residual  Certificate.  Holders  of REMIC
Residual  Certificates may be entitled to distributions early in the term of the
related  REMIC under  circumstances  in which their basis in the REMIC  Residual
Certificates will not be sufficiently  large that  distributions will be treated
as nontaxable returns of capital. Their basis in the REMIC Residual Certificates
will initially equal the amount paid for those REMIC Residual  Certificates  and
will be increased  by their  allocable  shares of taxable  income of the related
trust fund.  However,  their basis  increases may not occur until the end of the
calendar  quarter,  or perhaps the end of the calendar year, for which the REMIC
taxable  income is allocated to the REMIC  residual  certificateholders.  To the
extent the REMIC  residual  certificateholders  initial  basis are less than the
distributions  to the REMIC  residual  certificateholders,  and increases in the
initial basis either occur after  distributions  or, together with their initial
basis, are less than the amount of the distributions, gain will be recognized to
the REMIC residual certificateholders on those distributions and will be treated
as gain from the sale of their REMIC Residual Certificates.

     The effect of these rules is that a certificateholder  may not amortize its
basis in a REMIC  Residual  Certificate,  but may only recover its basis through
distributions, through the deduction of its share of any net losses of the REMIC
or on the  sale  of its  REMIC  Residual  Certificate.  See  "--Sales  of  REMIC
Certificates" in this prospectus.  For a discussion of possible modifications of
these  rules  that may  require  adjustments  to  income  of a holder of a REMIC
Residual  Certificate  other than an  original  holder in order to  reflect  any
difference between the cost of the REMIC Residual  Certificate to its holder and
the adjusted basis the REMIC Residual Certificate would have had in the hands of
the original holder, see "--General" in this prospectus

     Excess Inclusions. Any "excess inclusions" for a REMIC Residual Certificate
will be subject to federal income tax in all events.

     In general,  the "excess  inclusions" for a REMIC Residual  Certificate for
any calendar quarter will be the excess, if any, of:

o    the sum of the daily  portions of REMIC  taxable  income  allocable  to the
     REMIC Residual Certificate;

           over

o    the sum of the "daily  accruals," as described in the  following  sentence,
     for each day during that quarter that the REMIC  Residual  Certificate  was
     held by the REMIC residual certificateholder.

The daily accruals of a REMIC residual  certificateholder  will be determined by
allocating  to each day during a calendar  quarter  its  ratable  portion of the
product of the "adjusted  issue price" of the REMIC Residual  Certificate at the
beginning of the calendar  quarter and 120% of the  "long-term  Federal rate" in
effect on the closing  date.  For this  purpose,  the adjusted  issue price of a
REMIC Residual  Certificate as of the beginning of any calendar  quarter will be
equal to the issue price of the REMIC Residual Certificate, increased by the sum
of the daily accruals for all prior quarters and decreased,  but not below zero,
by any distributions made on the REMIC Residual Certificate before the beginning
of that quarter.  The issue price of a REMIC Residual Certificate is the initial
offering price to


                                       84
<PAGE>

the  public,  excluding  bond  houses,  brokers  and  underwriters,  at  which a
substantial amount of the REMIC Residual  Certificates were sold. If less than a
substantial amount of a particular class of REMIC Residual  Certificates is sold
for cash on or prior to the closing date,  the issue price of that class will be
treated  as the  fair  market  value  of that  class on the  closing  date.  The
"long-term Federal rate" is an average of current yields on Treasury  securities
with a remaining term of greater than nine years, computed and published monthly
by the IRS.

     For REMIC residual certificateholders, an excess inclusion:

o    will not be permitted to be offset by deductions, losses or loss carryovers
     from other activities;

o    will be treated as  "unrelated  business  taxable  income" to an  otherwise
     tax-exempt organization; and

o    will  not be  eligible  for any  rate  reduction  or  exemption  under  any
     applicable tax treaty for the 30% United States  withholding tax imposed on
     distributions  to  REMIC  residual   certificateholders  that  are  foreign
     investors.

See, however, "--Foreign Investors in Regular Certificates" in this prospectus.

     Furthermore,  for  purposes  of the  alternative  minimum  tax,  (1) excess
inclusions  will  not be  permitted  to be  offset  by the  alternative  tax net
operating loss deduction and (2)  alternative  minimum taxable income may not be
less than the taxpayer's excess inclusions; provided, however, that for purposes
of (2),  alternative  minimum taxable income is determined without regard to the
special  rule that taxable  income  cannot be less than excess  inclusions.  The
latter rule has the effect of preventing nonrefundable tax credits from reducing
the taxpayer's income tax to an amount lower than the alternative minimum tax on
excess inclusions.

     In the  case of any  REMIC  Residual  Certificates  held  by a real  estate
investment  trust,  the  aggregate  excess  inclusions  allocated  to the  REMIC
Residual  Certificates,  reduced,  but  not  below  zero,  by  the  real  estate
investment trust taxable income,  within the meaning of Section 857(b)(2) of the
Code,  excluding any net capital gain, will be allocated among the  shareholders
of the trust in proportion to the dividends  received by the  shareholders  from
the trust,  and any amount so allocated  will be treated as an excess  inclusion
from a REMIC  Residual  Certificate  as if  held  directly  by the  shareholder.
Treasury  regulations  yet to be issued  could apply a similar rule to regulated
investment  companies,  common  trust  funds  and some  cooperatives;  the REMIC
regulations currently do not address this subject.

     Noneconomic  REMIC  Residual  Certificates.  Under the  REMIC  regulations,
transfers of "noneconomic"  REMIC Residual  Certificates will be disregarded for
all federal income tax purposes if "a significant purpose of the transfer was to
enable the  transferor  to impede the  assessment  or collection of tax." If the
transfer is disregarded, the purported transferor will continue to remain liable
for any taxes due with respect to the income on the "noneconomic" REMIC Residual
Certificate.  The REMIC regulations provide that a REMIC Residual Certificate is
noneconomic  unless,  based on the prepayment  assumption and on any required or
permitted clean up calls, or required qualified  liquidation provided for in the
REMIC's organizational documents:

      (1)  the present value of the expected  future  distributions,  discounted
           using the "applicable  federal rate" for obligations  whose term ends
           on the  close of the last  quarter  in which  excess  inclusions  are
           expected to accrue on the REMIC Residual  Certificate,  which rate is
           computed  and  published  monthly by the IRS,  on the REMIC  Residual
           Certificate  equals at least the present value of the expected tax on
           the anticipated excess inclusions; and

      (2)  the transferor  reasonably  expects that the transferee  will receive
           distributions on the REMIC Residual  Certificate at or after the time
           the taxes accrue on the  anticipated  excess  inclusions in an amount
           sufficient to satisfy the accrued taxes.

Accordingly,  all transfers of REMIC Residual  Certificates  that may constitute
noneconomic  residual  interests will be subject to restrictions under the terms
of the related  pooling and  servicing  agreement  or trust  agreement  that are
intended  to reduce the  possibility  of any  transfer  being  disregarded.  The
restrictions  will require each party to a transfer to provide an affidavit that
no purpose of the transfer is to impede the  assessment  or  collection  of tax,
including  representations  as to the  financial  condition  of the  prospective
transferee,  as to which the  transferor  also is required to make a  reasonable
investigation  to determine the  transferee's  historic payment of its debts and
ability to

                                       85
<PAGE>

continue  to pay its debts as they come due in the  future.  The IRS has  issued
proposed  changes  to the REMIC  regulations  that  would add to the  conditions
necessary to assure that a transfer of a noneconomic  residual interest would be
respected.  The  proposed  additional  condition  would  require that the amount
received by the  transferee be no less on a present value basis than the present
value of the net tax detriment attributable to holding residual interest reduced
by the present  value of the  projected  payments to be received on the residual
interest.  The change is  proposed to be  effective  for  transfers  of residual
interests occurring after February 4, 2000. Prior to purchasing a REMIC Residual
Certificate,  prospective  purchasers  should  consider the  possibility  that a
purported transfer of the REMIC Residual Certificate by the purchaser to another
purchaser  at some  future  date  may be  disregarded  in  accordance  with  the
above-described  rules which would result in the  retention of tax  liability by
the first purchaser.

     The accompanying  prospectus supplement will disclose whether offered REMIC
Residual Certificates may be considered  "noneconomic"  residual interests under
the REMIC regulations. Any disclosure that a REMIC Residual Certificate will not
be considered "noneconomic" will be based on some assumptions, and the depositor
will  make no  representation  that a REMIC  Residual  Certificate  will  not be
considered   "noneconomic"  for  purposes  of  the  above-described  rules.  See
"--Foreign  Investors  in  Regular  Certificates"  for  additional  restrictions
applicable  to  transfers  of certain  REMIC  Residual  Certificates  to foreign
persons.

     Possible  Pass-Through  of  Miscellaneous  Itemized  Deductions.  Fees  and
expenses of a REMIC  generally  will be  allocated to the holders of the related
REMIC Residual  Certificates.  The  applicable  Treasury  regulations  indicate,
however,  that in the case of a REMIC that is similar to a single class  grantor
trust,  all or a portion of those fees and  expenses  should be allocated to the
holders of the related Regular Certificates. Fees and expenses will be allocated
to holders of the related REMIC Residual  Certificates in their entirety and not
to the holders of the related  Regular  Certificates or if stated in the related
prospectus supplement, some or all of the fees and expenses will be allocated to
the holders of the related Regular Certificates.

     For REMIC  Residual  Certificates  or Regular  Certificates  the holders of
which  receive  an  allocation  of fees  and  expenses  in  accordance  with the
preceding discussion,  if any holder thereof is an individual,  estate or trust,
or a Pass-Through Entity beneficially owned by one or more individuals,  estates
or trusts:

o    an amount equal to the individual's,  estate's or trust's share of fees and
     expenses will be added to the gross income of that holder; and

o    the  individual's,  estate's or trust's  share of fees and expenses will be
     treated as a miscellaneous  itemized deduction allowable in accordance with
     the  limitation of Section 67 of the Code,  which permits those  deductions
     only to the extent they exceed in the aggregate two percent of a taxpayer's
     adjusted gross income.

     In addition, Section 68 of the Code provides that the amount of itemized
deductions  otherwise  allowable for an individual  whose  adjusted gross income
exceeds a specified amount will be reduced by the lesser of:

o    3% of the  excess  of the  individual's  adjusted  gross  income  over that
     amount; or

o    80% of the  amount  of  itemized  deductions  otherwise  allowable  for the
     taxable year.

The amount of additional  taxable income reportable by REMIC  certificateholders
that are in accordance  with the  limitations of either Section 67 or Section 68
of the Code may be  substantial.  Furthermore,  in determining  the  alternative
minimum  taxable  income  of  the  holder  of a  REMIC  certificate  that  is an
individual,  estate or trust, or a Pass-Through Entity beneficially owned by one
or more  individuals,  estates or trusts,  no deduction will be allowed for that
holder's  allocable portion of servicing fees and other  miscellaneous  itemized
deductions of the REMIC, even though an amount equal to the amount of those fees
and other deductions will be included in the holder's gross income. Accordingly,
the REMIC  certificates  may not be  appropriate  investments  for  individuals,
estates, or trusts, or Pass-Through  Entities  beneficially owned by one or more
individuals,  estates or trusts.  Any prospective  investors should consult with
their tax advisors prior to making an investment in these certificates.

                                       86
<PAGE>

     Tax and Restrictions on Transfers of REMIC Residual Certificates to Certain
Organizations.  If a REMIC Residual Certificate is transferred to a Disqualified
Organization,  a tax would be imposed in an amount,  determined  under the REMIC
regulations, equal to the product of:

o    the present  value,  discounted  using the  "applicable  federal  rate" for
     obligations  whose  term  ends on the  close of the last  quarter  in which
     excess inclusions are expected to accrue on the certificate,  which rate is
     computed and published monthly by the IRS, of the total anticipated  excess
     inclusions  on  the  REMIC  Residual  Certificate  for  periods  after  the
     transfer; and

o    the highest marginal federal income tax rate applicable to corporations.

     The  anticipated  excess  inclusions must be determined as of the date that
the REMIC Residual  Certificate is transferred  and must be based on events that
have  occurred up to the time of transfer,  the  prepayment  assumption  and any
required or permitted clean up calls or required liquidation provided for in the
REMIC's  organizational  documents.  This tax generally  would be imposed on the
transferor of the REMIC Residual Certificate,  except that where the transfer is
through  an agent for a  Disqualified  Organization,  the tax would  instead  be
imposed on that agent.  However,  a transferor of a REMIC  Residual  Certificate
would  in no  event  be  liable  for the  tax on a  transfer  if the  transferee
furnishes  to  the  transferor  an  affidavit  that  the  transferee  is  not  a
Disqualified  Organization  and, as of the time of the transfer,  the transferor
does not have actual knowledge that the affidavit is false.  Moreover, an entity
will not qualify as a REMIC unless there are reasonable arrangements designed to
ensure that:

o    residual   interests   in  the   entity   are  not  held  by   Disqualified
     Organizations; and

o    information  necessary  for the  application  of the tax  described in this
     prospectus will be made available.

     Restrictions  on the  transfer  of REMIC  Residual  Certificates  and other
provisions  that are intended to meet this  requirement  will be included in the
pooling and servicing agreement, including provisions:

(1)  requiring any  transferee  of a REMIC  Residual  Certificate  to provide an
     affidavit  representing  that it is not a Disqualified  Organization and is
     not acquiring the REMIC  Residual  Certificate  on behalf of a Disqualified
     Organization,  undertaking to maintain that status and agreeing to obtain a
     similar  affidavit  from any  person  to whom it shall  transfer  the REMIC
     Residual Certificate;

(2)  providing  that  any  transfer  of  a  REMIC  Residual   Certificate  to  a
     Disqualified Organization shall be null and void; and

(3)  granting to the servicer or the  subservicer  the right,  without notice to
     the holder or any prior  holder,  to sell to a purchaser  of its choice any
     REMIC  Residual  Certificate  that  shall  become  owned by a  Disqualified
     Organization despite (1) and (2) above.

     In addition,  if a Pass-Through Entity includes in income excess inclusions
on a REMIC Residual Certificate,  and a Disqualified  Organization is the record
holder of an interest in that  entity,  then a tax will be imposed on the entity
equal to the product of:

o    the amount of excess inclusions on the REMIC Residual  Certificate that are
     allocable  to  the  interest  in  the  Pass-Through   Entity  held  by  the
     Disqualified Organization; and

o     the highest marginal federal income tax rate imposed on corporations.

A Pass-Through  Entity will not be subject to this tax for any period,  however,
if each record  holder of an interest in the  Pass-Through  Entity  furnishes to
that Pass-Through Entity:

o    the holder's  social  security  number and a statement  under  penalties of
     perjury that the social security number is that of the record holder; or

o    a statement  under  penalties  of perjury  that the record  holder is not a
     Disqualified Organization.

                                       87
<PAGE>

For taxable years beginning after December 31, 1997, regardless of the preceding
two sentences,  in the case of a REMIC Residual Certificate held by an "electing
large  partnership,"  all interests in that partnership shall be treated as held
by Disqualified  Organizations,  without regard to whether the record holders of
the partnership furnish statements described in the preceding sentence,  and the
amount  that is subject to tax under the second  preceding  sentence is excluded
from the gross income of the partnership  allocated to the partners,  in lieu of
allocating to the partners a deduction for the tax paid by the partners.

     Sales  of   certificates.   If  a   certificate   is  sold,   the   selling
certificateholder  will recognize  gain or loss equal to the difference  between
the amount realized on the sale and its adjusted basis in the  certificate.  The
adjusted  basis of a Regular  Certificate  generally will equal the cost of that
Regular Certificate to that  certificateholder,  increased by income reported by
the  certificateholder  with  respect  to that  Regular  Certificate,  including
original issue discount and market discount income,  and reduced,  but not below
zero,   by   distributions   on  the   Regular   Certificate   received  by  the
certificateholder  and by any amortized  premium.  The adjusted basis of a REMIC
Residual Certificate will be determined as described under "--Taxation of Owners
of REMIC Residual  Certificates--Basis  Rules, Net Losses and  Distributions" in
this  prospectus.  Except as described below, any gain or loss generally will be
capital gain or loss.

     Gain from the sale of a REMIC Regular Certificate, but not a FASIT regular
interest,  that  might  otherwise  be capital  gain will be treated as  ordinary
income to the extent the gain does not exceed the excess, if any, of:

o    the amount that would have been  includible in the seller's  income for the
     Regular  Certificate  had income accrued thereon at a rate equal to 110% of
     the  "applicable  federal  rate,"  which is  typically  a rate  based on an
     average  of  current  yields  on  Treasury  securities  having  a  maturity
     comparable to that of the certificate, which rate is computed and published
     monthly by the IRS,  determined  as of the date of  purchase of the Regular
     Certificate;

           over

o    the amount of ordinary  income  actually  includible in the seller's income
     prior to the sale.

In addition,  gain  recognized on the sale of a Regular  Certificate by a seller
who purchased the Regular  Certificate  at a market  discount will be taxable as
ordinary income to the extent of any accrued and previously  unrecognized market
discount  that  accrued  during  the  period  the   certificate  was  held.  See
"--Taxation of Owners of REMIC and FASIT Regular Certificates--Market  Discount"
in this prospectus.

     A portion  of any gain from the sale of a Regular  Certificate  that  might
otherwise be capital  gain may be treated as ordinary  income to the extent that
the certificate is held as part of a "conversion transaction" within the meaning
of Section 1258 of the Code. A conversion  transaction generally is one in which
the taxpayer has taken two or more positions in certificates or similar property
that reduce or eliminate  market risk, if  substantially  all of the  taxpayer's
return is attributable to the time value of the taxpayer's net investment in the
transaction.  The amount of gain so realized in a conversion transaction that is
recharacterized  as  ordinary  income  generally  will not  exceed the amount of
interest that would have accrued on the taxpayer's net investment at 120% of the
appropriate  "applicable  federal  rate," which rate is computed  and  published
monthly  by the IRS,  at the  time  the  taxpayer  enters  into  the  conversion
transaction,  subject to appropriate  reduction for prior  inclusion of interest
and other ordinary income items from the transaction.

     Finally,  a taxpayer  may elect to have net capital  gain taxed at ordinary
income rates rather than capital gains rates in order to include any net capital
gain in total net  investment  income for the taxable year,  for purposes of the
limitation on the deduction of interest on indebtedness  incurred to purchase or
carry property held for investment to a taxpayer's net investment income.

     If the seller of a REMIC Residual  Certificate  reacquires the certificate,
any other  residual  interest in a REMIC or any  similar  interest in a "taxable
mortgage pool," as defined in Section 7701(i) of the Code,  within six months of
the date of the sale,  the sale will be  subject  to the  "wash  sale"  rules of
Section 1091 of the Code. In that event, any loss realized by the REMIC residual
certificateholders on the sale will not be deductible, but instead will be added
to the REMIC residual  certificateholders  adjusted basis in the  newly-acquired
asset.

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     Prohibited  Transactions  and Other  Taxes.  The Code  imposes a prohibited
transactions  tax,  which is a tax on  REMICs  equal  to 100% of the net  income
derived  from  prohibited   transactions.   In  general,  subject  to  specified
exceptions a prohibited transaction means the disposition of a loan, the receipt
of income from a source other than any loan or other Permitted Investments,  the
receipt of compensation  for services,  or gain from the disposition of an asset
purchased  with the  payments  on the loans  for  temporary  investment  pending
distribution on the REMIC  certificates.  It is not  anticipated  that any REMIC
will  engage  in any  prohibited  transactions  in which it  would  recognize  a
material amount of net income. In addition,  some  contributions to a REMIC made
after the day on which the REMIC issues all of its interests could result in the
imposition of a contributions  tax, which is a tax on the REMIC equal to 100% of
the value of the contributed  property.  Each pooling and servicing agreement or
trust  agreement will include  provisions  designed to prevent the acceptance of
any contributions that would be subject to the tax.

     REMICs also are 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.  "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 any REMIC will recognize "net income from foreclosure
property" subject to federal income tax, however,  if a REMIC may be required to
recognize "net income from foreclosure  property" subject to federal income tax,
it will be stated in the related prospectus supplement.

     It is not anticipated  that any material state or local income or franchise
tax will be imposed on any REMIC,  however if any material state or local income
or  franchise  tax may be imposed on a REMIC,  it will be stated in the  related
prospectus supplement.

     To  the  extent   permitted  by  then   applicable   laws,  any  prohibited
transactions  tax,  contributions  tax,  tax on  "net  income  from  foreclosure
property" or state or local  income or franchise  tax that may be imposed on the
REMIC  will be  borne  by the  related  servicer,  the  subservicer,  the  REMIC
administrator,  the trustee,  or such other  entity as stated in the  applicable
prospectus  supplement,  in any case  out of its own  funds,  provided  that the
servicer, the subservicer, the REMIC administrator, the trustee, or other entity
as stated  in the  applicable  prospectus  supplement,  as the case may be,  has
sufficient  assets to do so, and  provided  further that the tax arises out of a
breach of the servicer's,  the  subservicer's,  the REMIC  administrator's,  the
trustee's,  or other entity as stated in the applicable  prospectus  supplement,
obligations,  as the  case may be,  under  the  related  pooling  and  servicing
agreement or trust agreement and relating to compliance with applicable laws and
regulations. Any tax not borne by the servicer, the subservicer, the trustee, or
other entity as stated in the applicable prospectus supplement,  will be payable
out of the related trust  resulting in a reduction in amounts payable to holders
of the related REMIC certificates.

     In the case of a FASIT,  the holder of the  ownership  interest and not the
FASIT itself will be subject to any prohibited transaction taxes.

     Termination. A REMIC will terminate immediately after the distribution date
following  receipt by the REMIC of the final payment from the loans or on a sale
of the REMIC's assets  following the adoption by the REMIC of a plan of complete
liquidation. The last distribution on a Regular Certificate will be treated as a
payment in  retirement  of a debt  instrument.  In the case of a REMIC  Residual
Certificate,  if the last distribution on the REMIC Residual Certificate is less
than  the   certificateholder's   adjusted   basis  in  the   certificate,   the
certificateholder  should be treated as  realizing a loss equal to the amount of
the difference, and the loss may be treated as a capital loss.

     Reporting  and Other  Administrative  Matters.  Solely for  purposes of the
administrative  provisions of the Code, a REMIC will be treated as a partnership
and REMIC residual certificateholders will be treated as partners. The servicer,
the  subservicer,  the  REMIC  administrator,  or other  entity as stated in the
applicable prospectus supplement, as applicable,  will file REMIC federal income
tax  returns  on behalf of the  related  REMIC and will act as the "tax  matters
person" for the REMIC in all  respects,  and may hold a nominal  amount of REMIC
Residual Certificates.

     As the tax  matters  person,  the  servicer,  the  subservicer,  the  REMIC
administrator,   or  other  entity  as  stated  in  the  applicable   prospectus
supplement, as applicable, will have the authority to act on behalf of the REMIC


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and the REMIC residual  certificateholders in connection with the administrative
and judicial review of items of income, deduction, gain or loss of the REMIC, as
well as the REMIC's  classification.  REMIC residual  certificateholders will be
required  to report the REMIC items  consistently  with their  treatment  on the
related  REMIC's  tax  return  and  may in  some  circumstances  be  bound  by a
settlement   agreement  between  the  servicer,   the  subservicer,   the  REMIC
administrator,   or  other  entity  as  stated  in  the  applicable   prospectus
supplement,  as applicable,  as tax matters  person,  and the IRS concerning any
REMIC item.

     Adjustments  made to the  REMIC tax  return  may  require a REMIC  residual
certificateholders to make corresponding adjustments on its return, and an audit
of the REMIC's tax return,  or the  adjustments  resulting from an audit,  could
result  in an  audit  of  the  certificateholder's  return.  No  REMIC  will  be
registered  as a tax shelter  under  Section  6111 of the Code because it is not
anticipated  that any  REMIC  will  have a net loss  for any of the  first  five
taxable  years  of its  existence.  Any  person  that  holds  a  REMIC  Residual
Certificate  as a nominee for  another  person may be required to furnish to the
related REMIC, in a manner to be provided in Treasury regulations,  the name and
address of that person and other information.

     Reporting of interest  income,  including any original issue  discount,  on
Regular  Certificates is required annually,  and may be required more frequently
under Treasury regulations. These information reports are required to be sent to
individual  holders  of  regular  interests  and the  IRS;  holders  of  Regular
Certificates  that  are  corporations,  trusts,  securities  dealers  and  other
non-individuals  will be provided  interest and original issue  discount  income
information  and the  information  in the  following  paragraph  on  request  in
accordance with the requirements of the applicable regulations.  The information
must be  provided by the later of 30 days after the end of the quarter for which
the  information  was requested,  or two weeks after the receipt of the request.
The REMIC must also comply with rules  requiring  a Regular  Certificate  issued
with original issue discount to disclose on its face  information  including the
amount of  original  issue  discount  and the issue  date,  and  requiring  that
information  to be  reported  to the  IRS.  Reporting  for  the  REMIC  Residual
Certificates,  including  income,  excess  inclusions,  investment  expenses and
relevant information regarding  qualification of the REMIC's assets will be made
as required under the Treasury regulations, typically on a quarterly basis.

     As applicable,  the Regular Certificate  information reports will include a
statement  of the  adjusted  issue  price  of  the  Regular  Certificate  at the
beginning  of each  accrual  period.  In  addition,  the  reports  will  include
information  required by  regulations  for  computing  the accrual of any market
discount.  Because  exact  computation  of the  accrual of market  discount on a
constant yield method  requires  information  relating to the holder's  purchase
price that the servicer or the subservicer  will not have, the regulations  only
require that information  pertaining to the appropriate  proportionate method of
accruing  market  discount be provided.  See  "--Taxation of Owners of REMIC and
FASIT Regular Certificates--Market Discount."

     The responsibility for complying with the foregoing reporting rules will be
borne by the  subservicer,  the trustee,  or the REMIC (or FASIT)  administrator
named in the related  prospectus  supplement,  as  specified  in the  prospectus
supplement.  Certificateholders  may request any information with respect to the
returns described in Section 1.6049-7(e)(2) of the Treasury regulations.

Backup Withholding with Respect to Securities

     Payments of interest and  principal,  as well as payments of proceeds  from
the sale of  securities,  may be subject to the "backup  withholding  tax" under
Section  3406 of the Code at a rate of 31% if  recipients  of  payments  fail to
furnish   to  the  payor   certain   information,   including   their   taxpayer
identification  numbers,  or otherwise  fail to establish an exemption  from the
tax. Any amounts  deducted and withheld from a distribution to a recipient would
be allowed as a credit against the recipient's federal income tax.  Furthermore,
penalties  may be imposed by the IRS on a recipient of payments that is required
to supply information but that does not do so in the proper manner.

Foreign Investors in Regular Certificates

     A regular  certificateholder,  other  than a holder  of a FASIT  high-yield
regular  interest,  that is not a United  States  person  and is not  subject to
federal  income  tax as a result of any  direct or  indirect  connection  to the
United States in addition to its ownership of a Regular  Certificate will not be
subject to United States federal income or withholding  tax on a distribution on
a Regular Certificate, provided that the holder complies to the extent necessary


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with certain  identification  requirements,  including  delivery of a statement,
signed by the certificateholder under penalties of perjury,  certifying that the
certificateholder  is not a United  States  person  and  providing  the name and
address of the certificateholder.

     For these purposes, United States person means:

o    a citizen or resident of the United States;

o    a  corporation,  partnership  or other entity  created or organized  in, or
     under the laws of, the United States,  any state thereof or the District of
     Columbia,  except, in the case of a partnership,  to the extent provided in
     regulations;

o    an estate  whose  income is subject  to United  States  federal  income tax
     regardless of its source; or

o    a trust if a court  within the United  States is able to  exercise  primary
     supervision  over the  administration  of the trust and one or more  United
     States persons have the authority to control all  substantial  decisions of
     the trust. To the extent  prescribed in regulations by the Secretary of the
     Treasury,  which regulations have not yet been issued, a trust which was in
     existence  on August 20, 1996,  other than a trust  treated as owned by the
     grantor under subpart E of part I of subchapter J of chapter 1 of the Code,
     and which was treated as a United  States  person on August 19,  1996,  may
     elect to continue to be treated as a United States person regardless of the
     previous sentence.

It is possible that the IRS may assert that the  foregoing tax exemption  should
not  apply  to  a  REMIC   Regular   Certificate   held  by  a  REMIC   residual
certificateholder  that owns directly or indirectly a 10% or greater interest in
the REMIC Residual  Certificates or a FASIT Regular Certificate held by a person
that owns directly or indirectly a 10% or greater  interest in the holder of the
ownership interest in the FASIT.  Further,  the Proposed FASIT Regulations treat
all  interest  received  by a foreign  holder  of a FASIT  regular  interest  as
ineligible  for  the  foregoing  exemption  from  withholding  tax if the  FASIT
receives or accrues  interest from a United States resident in which the foreign
holder has a 10% or more ownership interest or as to which the foreign holder is
a controlled foreign corporation to which the United States resident is related.
If the  holder  does not  qualify  for  exemption,  distributions  of  interest,
including distributions of accrued original issue discount, to the holder may be
subject to a tax rate of 30%,  subject to  reduction  under any  applicable  tax
treaty.

     In addition,  the foregoing  rules will not apply to exempt a United States
shareholder  of a controlled  foreign  corporation  from  taxation on the United
States  shareholder's  allocable  portion of the interest income received by the
controlled foreign corporation.

     Further, it appears that a Regular Certificate would not be included in the
estate of a  non-resident  alien  individual  and would not be subject to United
States estate taxes.  However,  certificateholders  who are  non-resident  alien
individuals should consult their tax advisors concerning this question.

     Generally,  transfers of REMIC Residual  Certificates  and FASIT high-yield
regular  interests  to  investors  that are not United  States  persons  will be
prohibited under the related pooling and servicing agreement or trust agreement,
however, if so stated in the applicable prospectus supplement transfers of REMIC
Residual  Certificates and FASIT high-yield  regular interests to investors that
are not United States persons will be allowed.

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<PAGE>

     New  Withholding  Regulations.  The  Treasury  Department  has  issued  new
regulations which make some modifications to the withholding, backup withholding
and information  reporting rules described above. The new regulations attempt to
unify  certification   requirements  and  modify  reliance  standards.  The  new
regulations  will be effective for most  payments made after  December 31, 2000.
The new regulations  contain  transaction rules applicable to some payments made
after  December 31, 2000.  Prospective  investors are urged to consult their tax
advisors regarding the new regulations.

Non-REMIC Trust Funds

     The discussion  under this heading applies only to a series with respect to
which a REMIC or FASIT election is not made.

     Characterization  of the Trust Fund.  Upon the  issuance of any series with
respect to which no REMIC or FASIT  election is made and which is  described  in
the related  prospectus  supplement  as a grantor  trust,  Orrick,  Herrington &
Sutcliffe LLP, if it is counsel to the depositor, will deliver its opinion that,
with respect to that series of securities,  under then existing law and assuming
compliance by the depositor,  the servicer and the trustee of the related series
with all of the provisions of the related pooling and servicing  agreement,  and
the  agreement  or  agreements,  if any,  providing  for a credit  facility or a
liquidity  facility,  together with any agreement  documenting  the  arrangement
through  which a credit  facility  or a liquidity  facility is held  outside the
related trust fund, and the agreement or agreements  with any  underwriter,  for
federal  income tax  purposes,  the trust fund will be  classified  as a grantor
trust  and  not  as a  corporation  or an  association  which  is  taxable  as a
corporation (or publicly traded  partnership  treated as a corporation)  and the
grantor  trust  certificates  will be  treated  as  equity in that  trust  fund.
Accordingly,  each grantor trust  certificateholder  will be treated for federal
income tax purposes as the owner of an undivided  equity  interest in the assets
included  in  that  trust  fund.  Further,  if with  respect  to any  series  of
securities  Orrick,  Herrington & Sutcliffe LLP is not counsel to the depositor,
depositor's  then current  counsel will be identified in the related  prospectus
supplement  and will  confirm or  supplement  the  aforementioned  opinions.  As
further  described below,  each grantor trust  certificateholder  must therefore
report on its federal income tax return the gross income from the portion of the
assets of the related trust fund that is allocable to the related  grantor trust
certificate and may deduct its share of the expenses paid by the trust fund that
are  allocable to that grantor  trust  certificate,  at the same time and to the
same extent as those items would be reported by that holder if it had  purchased
and held  directly  such  interest in the assets of the  related  trust fund and
received  directly its share of the payments on the assets of the related  trust
fund and paid  directly  its share of the  expenses  paid by the trust fund when
those  amounts  are  received  and  paid by the  trust  fund.  A  grantor  trust
certificateholder  who is an  individual  will be allowed  deductions  for those
expenses only to the extent that the sum of those  expenses and certain other of
the grantor trust certificateholder's  miscellaneous itemized deductions exceeds
2% of that  individual's  adjusted  gross  income.  In  addition,  the amount of
itemized  deductions  otherwise  allowable for the taxable year of an individual
whose adjusted  gross income  exceeds  certain  thresholds  will be reduced.  It
appears that expenses  paid by the trust fund,  and the gross income used to pay
those  expenses,  should  be  allocated  among  the  classes  of  grantor  trust
certificates  in proportion to their  respective fair market values at issuance,
but because other  reasonable  methods of allocation exist and the allocation of
those items has not been the subject of a controlling court decision, regulation
or ruling by the IRS, no definitive  advice  concerning  the allocation of those
items can be given.

     Under current IRS interpretations of applicable Treasury  regulations,  the
depositor would be able to sell or otherwise dispose of any subordinated grantor
trust  certificates.  Accordingly,  the depositor expects to offer  subordinated
grantor  trust  certificates  for sale to investors.  In general,  subordination
should not affect the federal income tax treatment of either the subordinated or
senior certificates,  and holders of subordinated classes of certificates should
be able to  recognize  any losses  allocated  to the  related  class when and if
losses are realized.

     To the extent that any of the mortgage  loans,  contracts or mortgage loans
underlying the Mortgage Certificates included in a trust fund were originated on
or after March 21, 1984 and under  circumstances  giving rise to original  issue
discount,  grantor trust  certificateholders will be required to report annually
an amount of additional  interest  income  attributable to the discount in those
mortgage loans, contracts or mortgage loans underlying the Mortgage Certificates
prior to receipt of cash related to the discount. See the discussion above under
"Taxation  of Owners of REMIC and  FASIT  Regular  Certificates--Original  Issue
Discount." Similarly, Code provisions concerning market discount and amortizable
premium will apply to the mortgage loans, contracts or mortgage loans underlying
the  Mortgage  Certificates  included  in a trust  fund to the  extent  that the
mortgage loans, contracts or



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mortgage loans underlying the Mortgage  Certificates  were originated after July
18, 1984 and September 27, 1985,  respectively.  See the discussions above under
"Taxation of Owners of REMIC and FASIT  Regular  Certificates--Market  Discount"
and "--Premium."

     Tax Status of Grantor  Trust  Certificates.  In general,  the grantor trust
certificates,  other than premium grantor trust certificates as discussed below,
will be:

o    "real  estate  assets"  within the meaning of Section  856(c)(4)(A)  of the
     Code; and

o    assets  described in Section  7701(a)(19)(C)  of the Code to the extent the
     trust fund's assets qualify under those sections of the Code.

Any  amount  includible  in gross  income  with  respect  to the  grantor  trust
certificates will be treated as "interest on obligations secured by mortgages on
real  property or on interests in real  property"  within the meaning of Section
856(c)(3)(B)  of the Code to the extent the  income on the trust  fund's  assets
qualifies under that Code section. The IRS has ruled that obligations secured by
permanently  installed  mobile home units qualify as "real estate  assets" under
Section 856(c)(4)(A) of the Code. Assets described in Section  7701(a)(19)(C) of
the Code include  loans  secured by mobile homes not used on a transient  basis.
However, whether manufactured homes would be viewed as permanently installed for
purposes of Section 856 of the Code would depend on the facts and  circumstances
of each case,  because  the IRS  rulings on this issue do not  provide  facts on
which  taxpayers  can rely to achieve  treatment  as "real  estate  assets".  No
assurance can be given that the manufactured  homes will be so treated.  A "real
estate investment trust," or REIT, will not be able to treat that portion of its
investment  in   certificates   that   represents   ownership  of  contracts  on
manufactured  homes that are not  treated  as  permanently  attached  as a "real
estate asset" for REIT qualification purposes. In this regard,  investors should
note  that  generally,   most  contracts   prohibit  the  related  obligor  from
permanently  attaching the related  manufactured home to its site if it were not
so  attached  on the  date  of the  contract.  If so  specified  in the  related
prospectus  supplement,  contracts included in the related trust fund may permit
the obligor to permanently attach the related manufactured home to its site even
if not attached at the date of the  contract.  Grantor trust  certificates  that
represent  the right solely to interest  payments on contracts and grantor trust
certificates that are issued at prices that substantially  exceed the portion of
the  principal  amount  of  the  contracts  allocable  to  those  grantor  trust
certificates,  both  types of  non-REMIC  certificates  referred  to as  premium
grantor trust  certificates,  should qualify under the foregoing sections of the
Code to the same extent as other  certificates,  but the matter is not free from
doubt.  Prospective  purchasers  of  certificates  who  may be  affected  by the
foregoing Code provisions should consult their tax advisors regarding the status
of the certificates under those provisions.

     Taxation of Grantor Trust Certificates  Under Stripped Bond Rules.  Certain
classes of grantor trust  certificates may be subject to the stripped bond rules
of Section 1286 of the Code.  In general,  a grantor trust  certificate  will be
subject  to the  stripped  bond  rules  where  there  has been a  separation  of
ownership  of the right to receive  some or all of the  principal  payments on a
mortgage loan,  contract or mortgage loan  underlying the Mortgage  Certificates
from  ownership  of the right to  receive  some or all of the  related  interest
payments.  Grantor trust certificates will constitute stripped  certificates and
will be  subject to these  rules  under  various  circumstances,  including  the
following:

     (1)  if any servicing compensation is deemed to exceed a reasonable amount;

     (2)  if the  depositor  or any other  party  retains a retained  yield with
          respect to the assets included in a trust fund;

     (3)  if two or more  classes  of  grantor  trust  certificates  are  issued
          representing  the right to non-pro rata percentages of the interest or
          principal payments on the assets included in a trust fund; or

     (4)  if grantor trust  certificates are issued which represent the right to
          interest only payments or principal only payments.

The grantor trust certificates will either (a) be subject to the "stripped bond"
rules of Section  1286 of the Code or, if the  application  of those  rules to a
particular  series of grantor trust  certificates  is uncertain,  the trust fund
will take the position  that they apply or (b) be subject to some other  section
of the Code as described  in the related  prospectus  supplement.  There is some
uncertainty  as to how  Section  1286 of the Code will be applied to  securities
such as the


                                       93
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grantor  trust  certificates.  Investors  should  consult their own tax advisors
regarding  the treatment of the grantor  trust  certificates  under the stripped
bond rules.

     Although the matter is not entirely clear and alternative characterizations
could be imposed, it appears that each stripped grantor trust certificate should
be considered to be a single debt  instrument  issued on the day it is purchased
for purposes of  calculating  original issue  discount.  Thus, in each month the
holder  of a  grantor  trust  certificate,  whether  a cash  or  accrual  method
taxpayer,  will be required  to report  interest  income from the grantor  trust
certificate equal to the income that accrues on the grantor trust certificate in
that month,  calculated,  in  accordance  with the rules of the Code relating to
original issue discount,  under a constant yield method. In general,  the amount
of the income  reported  in any month  would  equal the  product of the  related
holder's  adjusted  basis in the grantor trust  certificate  at the beginning of
that month (see "--Sales of  Certificates"  below) and the yield of such grantor
trust certificate to that holder. The yield would be the monthly rate,  assuming
monthly  compounding,  determined  as of the date of purchase  that,  if used in
discounting  the remaining  payments on the portion of the assets in the related
trust fund that is allocable to that grantor trust certificate,  would cause the
present value of those payments to equal the price at which the holder purchased
the grantor trust certificate.

     With respect to certain  categories of debt instruments,  the Code requires
the  use of a  reasonable  prepayment  assumption  in  accruing  original  issue
discount  and  provides a method of  adjusting  those  accruals  to account  for
differences between the assumed prepayment rate and the actual rate. These rules
apply to "regular  interests" in a REMIC and are described under  "--Taxation of
Owners  of REMIC  and  FASIT  Regular  Certificates--Original  Issue  Discount."
Regulations  could  be  adopted  applying  these  rules  to  the  grantor  trust
certificates.  Although  the matter is not free from doubt,  it appears that the
Taxpayer  Relief  Act of  1997  has  expanded  the  requirement  of the use of a
reasonable  prepayment  assumption  to  instruments  such as the  grantor  trust
certificates. In the absence of regulations interpreting the application of this
requirement  to those  instruments  particularly  where  those  instruments  are
subject  to the  stripped  bond  rules,  it is  uncertain  whether  the  assumed
prepayment rate would be determined based on conditions at the time of the first
sale of the grantor trust  certificates  or, with respect to any holder,  at the
time of purchase of the grantor trust  certificate by that holder.  Finally,  if
these rules were applied to the grantor trust  certificates,  and the principles
used in  calculating  the amount of original  issue discount that accrues in any
month would produce a negative amount of original issue discount,  it is unclear
when the loss would be allowed.

     In the case of a grantor trust certificate acquired at a price equal to the
principal  amount of the  assets in the  related  trust fund  allocable  to that
grantor trust certificate,  the use of a reasonable  prepayment assumption would
not have any  significant  effect on the yield used in  calculating  accruals of
interest income. In the case, however,  of a grantor trust certificate  acquired
at a discount  or  premium,  that is, at a price  less than or greater  than its
principal amount,  respectively,  the use of a reasonable  prepayment assumption
would  increase or decrease the yield,  and thus  accelerate or  decelerate  the
reporting of interest income, respectively.

     If  the  yield  used  by the  holder  of a  grantor  trust  certificate  in
calculating the amount of interest that accrues in any month is determined based
on  scheduled  payments on the  mortgage  loans,  contracts,  or mortgage  loans
underlying the Mortgage  Certificates  included in the related trust fund,  that
is,  without using a reasonable  prepayment  assumption,  and that grantor trust
certificate  was  acquired at a discount or premium,  then the holder  generally
will  recognize  a net amount of  ordinary  income or loss if a  mortgage  loan,
contract,  or mortgage loan underlying the Mortgage Certificates prepays in full
in an  amount  equal  to the  difference  between  the  portion  of the  prepaid
principal amount of the mortgage loan, contract, or mortgage loan underlying the
Mortgage Certificates that is allocable to the grantor trust certificate and the
portion of the adjusted basis of the grantor trust certificate,  see "--Sales of
Certificates"  below,  that is  allocable  to the mortgage  loan,  contract,  or
mortgage loan underlying the Mortgage  Certificates.  In general, basis would be
allocated among the mortgage loans,  contracts, or mortgage loans underlying the
Mortgage  Certificates  in proportion  to their  respective  principal  balances
determined immediately before the prepayment.  It is not clear whether any other
adjustments would be required or permitted to take account of prepayments of the
mortgage   loans,   contracts,   or  mortgage  loans   underlying  the  Mortgage
Certificates.

     Solely for purposes of reporting  income on the grantor trust  certificates
to the IRS and to certain holders, as required under the Code, it is anticipated
that, unless provided otherwise in the related prospectus supplement,  the yield
of the grantor trust certificates will be calculated based on:

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<PAGE>

     o    a   representative   initial  offering  price  of  the  grantor  trust
          certificates to the public; and

     o    a reasonable  assumed  prepayment rate, which will be the rate used in
          pricing the initial offering of the grantor trust certificates.

The yield may differ  significantly from the yield to any particular holder that
would  be  used  in  calculating  the  interest   income  of  that  holder.   No
representation  is made that the mortgage  loans,  contracts,  or mortgage loans
underlying  the  Mortgage  Certificates  will  in  fact  prepay  at the  assumed
prepayment rate or at any other rate.

     Sales of  Certificates.  Upon  the  sale or  exchange  of a  grantor  trust
certificate, a grantor trust certificateholder will recognize gain or loss equal
to the  difference  between the amount  realized  in the sale and its  aggregate
adjusted basis in the assets  included in the related trust fund  represented by
the grantor trust  certificate.  Generally,  the aggregate  adjusted  basis will
equal  the  grantor  trust   certificateholder's  cost  for  the  grantor  trust
certificate increased by the amount of any previously reported gain with respect
to the  grantor  trust  certificate  and  decreased  by the amount of any losses
previously reported with respect to the grantor trust certificate and the amount
of any  distributions  received on that  grantor  trust  certificate.  Except as
provided above with respect to the original  issue discount and market  discount
rules,  any gain or loss  would be  capital  gain or loss if the  grantor  trust
certificate was held as a capital asset.

     Foreign Investors.  Generally,  interest or original issue discount paid to
or accruing for the benefit of a grantor  trust  certificateholder  who is not a
United States person will be treated as "portfolio  interest" and therefore will
be exempt from the 30%  withholding  tax. That grantor  trust  certificateholder
will be entitled to receive interest payments and original issue discount on the
grantor trust certificates free of United States federal income tax, but only to
the extent the mortgage  loans,  contracts,  or mortgage  loans  underlying  the
Mortgage  Certificates  included in the related trust fund were originated after
July 18, 1984 and provided that the grantor trust certificateholder periodically
provides  the  trustee,  or other  person who would  otherwise  be  required  to
withhold  tax,  with a statement  certifying  under  penalty of perjury that the
grantor trust  certificateholder is not a United States person and providing the
name  and  address  of  the  grantor  trust  certificateholder.  For  additional
information  concerning interest or original issue discount paid to a non-United
States  person  and the  treatment  of a sale or  exchange  of a  grantor  trust
certificate by a non-United  States  person,  which will generally have the same
tax consequences as the sale of a Regular Certificate,  see the discussion above
in "Foreign Investors in Regular Certificates."

                        State and Other Tax Consequences

     In  addition  to  the  federal  income  tax  consequences  described  under
"Material Federal Income Tax Consequences,"  potential investors should consider
the  state  and  local  tax  consequences  of the  acquisition,  ownership,  and
disposition  of the  certificates  offered  hereunder.  State tax law may differ
substantially  from the corresponding  federal tax law, and the discussion above
does not  purport to  describe  any aspect of the tax laws of any state or other
jurisdiction. Therefore, prospective investors should consult their tax advisors
with respect to the various tax  consequences of investments in the certificates
offered hereby.

                              ERISA Considerations

     The Employee  Retirement Income Security Act of 1974, as amended, or ERISA,
imposes  certain  restrictions on ERISA Plans and on those persons who are ERISA
fiduciaries  with respect to the assets of those ERISA Plans. In accordance with
the  general  fiduciary  standards  of ERISA,  an ERISA  Plan  fiduciary  should
consider whether an investment in the certificates is permitted by the documents
and  instruments   governing  the  Plan,  consistent  with  the  Plan's  overall
investment  policy and  appropriate in view of the composition of its investment
portfolio.

     Employee  benefit  plans which are  governmental  plans and certain  church
plans,  if no election has been made under Section  410(d) of the Code,  are not
subject  to  ERISA  requirements.  Accordingly,  assets  of those  plans  may be
invested in the certificates subject to the provisions of applicable federal and
state law and, in the case of any plan which is qualified  under Section  401(a)
of the Code and exempt  from  taxation  under  Section  501(a) of the Code,  the
restrictions imposed under Section 503 of the Code.

                                       95
<PAGE>

     In addition to imposing general fiduciary standards, ERISA and Section 4975
of the Code prohibit a broad range of transactions involving assets of Plans and
Parties in  Interest  and  imposes  taxes  and/or  other  penalties  on any such
transaction  unless an  exemption  applies.  If the  assets of a trust  fund are
treated  for ERISA  purposes  as the assets of the Plans that  purchase  or hold
certificates  of the applicable  series,  an investment in  certificates of that
series by or with "plan  assets" of a Plan  might  constitute  or give rise to a
prohibited  transaction  under  ERISA  or  Section  4975 of the  Code,  unless a
statutory,  regulatory or  administrative  exemption  applies.  Violation of the
prohibited  transaction  rules could  result in the  imposition  of excise taxes
and/or other penalties under ERISA and/or Section 4975 of the Code.

     A number of prohibited transaction class exemptions issued by the DOL might
apply to exempt a prohibited  transaction arising by virtue of the purchase of a
certificate  by or on behalf of, or with "plan  assets"  of a Plan,  i.e.,  PTCE
96-23 (class Exemption for Plan Asset Transactions  Determined by In-House Asset
Managers),  PTCE 95-60  (class  Exemption  for  Certain  Transactions  Involving
Insurance  Company General  Accounts),  PTCE 91-38 (class  Exemption for Certain
Transactions  Involving  Bank  Collective  Investment  Funds),  PTCE 90-1 (class
Exemption for Certain  Transactions  Involving Insurance Company pooled Separate
Accounts) or PTCE 84-14 (class Exemption for Plan Asset Transactions  Determined
by Independent Qualified Professional Asset Managers). There can be no assurance
that any of these class  exemptions  will apply with  respect to any  particular
Plan  certificateholder  or,  even if it  were  to  apply,  that  the  available
exemptive relief would apply to all transactions  involving the applicable trust
fund.

Plan Assets Regulation

     The United States  Department of Labor,  or DOL, has issued the Plan Assets
Regulation.  Unless the Plan Assets  Regulation  provides an exception from this
"plan asset" treatment,  and if that exception is not otherwise  available under
ERISA, an undivided  portion of the assets of a trust fund will be treated,  for
purposes of applying the fiduciary standards and prohibited transaction rules of
ERISA and  Section  4975 of the Code,  as an asset of each Plan which  becomes a
certificateholder of the applicable series. As a result,  transactions involving
the assets of the trust fund will be  subject  to the  fiduciary  responsibility
provisions  of ERISA  and the  prohibited  transaction  provisions  of ERISA and
Section 4975 of the Code. The prohibited transaction exemptions identified above
would not generally  apply to prohibited  transactions  arising in  transactions
involving "plan assets" held in the trust fund.

     The  Plan  Assets  Regulation  provides  an  exception  from  "plan  asset"
treatment  for  securities  issued by an entity if,  immediately  after the most
recent  acquisition of any equity  interest in the entity,  less than 25% of the
value of each class of equity interests in the entity,  excluding interests held
by a person  who has  discretionary  authority  or control  with  respect to the
assets of the entity, or any affiliate of that person, are held by "benefit plan
investors"  --e.g.,  Plans,  governmental,  foreign and other  benefit plans not
subject to ERISA and entities holding assets deemed to be "plan assets." Because
the  availability  of this exemption to any trust fund depends upon the identity
of the  certificateholders of the applicable series at any time, there can be no
assurance  that any  series  or  class of  certificates  will  qualify  for this
exemption.

Underwriter's PTE

     Credit Suisse First Boston  Corporation,  or First Boston, is the recipient
of an  Underwriter's  PTE, which may accord  protection  from  violations  under
Sections  406 and 407 of ERISA  and  Section  4975 of the Code  for  Plans  that
acquire certificates:

      (a)  which represent:

           (1)  a  beneficial  ownership  interest  in the assets of a trust and
                entitle  the  holder  to  pass-through  payments  of  principal,
                interest  and/or other  payments made with respect to the assets
                of the trust; or

           (2)  an  interest in a REMIC if the  certificates  are issued by and
                are obligations of a trust; and

      (b)  with  respect  to  which  the  recipient  underwriter  or  any of its
           affiliates is either the sole underwriter,  the manager or co-manager
           or a selling or placement  agent.  The corpus of a trust to which the
           Underwriter's PTE applies may consist of:

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<PAGE>

           (1)  obligations  which bear interest or are purchased at a discount
                and which are secured by:

                (A)  single-family   residential,   multifamily  residential  or
                     commercial real property,  including obligations secured by
                     leasehold interests on that real property; or

                (B)  shares issued by a cooperative housing association;

           (2)  secured   consumer   receivables  that  bear  interest  or  are
                purchased at a discount;

           (3)  secured credit  instruments that bear interest or are purchased
                at a discount in transactions by or between business  entities;
                and

           (4)  "guaranteed governmental mortgage pool certificates," as defined
                in the Plan Assets Regulation.

     Plans  acquiring  certificates  may be eligible  for  protection  under the
Underwriter's PTE if:

      (a)  assets of the type  included  as assets of a  particular  trust fund
           have been included in other investment pools;

      (b)  certificates  evidencing  interests  in those  other pools have been
           both:

           (1)  rated in one of the three highest generic rating  categories by
                Standard & Poor's Ratings Services,  Moody's Investors Service,
                Inc., Duff & Phelps Inc. or Fitch IBCA, Inc.; and

           (2)  purchased by investors  other than Plans,  for at least one year
                prior to a Plan's  acquisition of  certificates in reliance upon
                the Underwriter's PTE;

      (c)  at the time of the acquisition, the class of certificates acquired by
           the  Plan  has  received  a rating  in one of the  rating  categories
           referred to in condition (b)(1) above;

      (d)  the  trustee is not an  affiliate  of any  member of the  Restricted
           Group;

      (e)  the applicable series of certificates  evidences  ownership in assets
           of  a  particular  trust  fund  which  may  include  non-subordinated
           Mortgage Certificates,  whether or not interest and principal payable
           with respect to the Mortgage Certificates are guaranteed by the GNMA,
           FHLMC or FNMA,  contracts or, if certain conditions  specified in the
           applicable  prospectus   supplement  are  satisfied,   a  Pre-Funding
           Account, but may not include a swap agreement;

      (f)  the class of certificates acquired by the Plan is not subordinated to
           other classes of certificates of that Trust with respect to the right
           to receive payment in the event of defaults or  delinquencies  on the
           underlying assets of the related trust fund;

      (g)  the Plan is an  "accredited  investor," as defined in Rule 501(a)(1)
           of Regulation D under the Securities Act of 1933, as amended;

      (h)  the acquisition of the 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;

      (i)  the  sum  of  all  payments  made  to and  retained  by  the  related
           underwriter  or members of any  underwriting  syndicate in connection
           with the  distribution of the  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 sale
           of the assets of the trust fund to the trust fund represents not more
           than the fair market value of those assets; and

      (j)  the sum of all payments  made to and retained by the servicer and all
           subservicers represents not more than reasonable compensation for the
           related  subservicers'  services  under  the  pooling  and  servicing
           agreement and reimbursement of the related  subservicers'  reasonable
           expenses in connection herewith.

Each series of  certificates  generally  is expected  to satisfy  condition  (a)
above. If stated in the applicable prospectus supplement,  the related series of
certificates  will not satisfy condition (a) above. If a series includes a class
of subordinated  certificates,  that class will not satisfy condition (f) above.
Additionally,  this prospectus permits the

                                       97
<PAGE>


issuance of certificates rated in one of the four highest rating categories,  so
a particular class of a series may not satisfy condition (c) above.

     In addition, the Underwriter's PTE will not apply to a Plan's investment in
certificates if the Plan fiduciary responsible for the decision to invest in the
certificates  is a mortgagor or obligor with respect to more than 5% of the fair
market value of the  obligations  constituting  the assets of the related  trust
fund or an affiliate of that person, unless:

     o    in the case of an acquisition in connection with the initial  issuance
          of any  series  of  certificates,  at  least  50%  of  each  class  of
          certificates  in which  Plans have  invested  is  acquired  by persons
          independent of the Restricted  Group and at least 50% of the aggregate
          interest in the trust fund is acquired by persons  independent  of the
          Restricted Group;

     o    the Plan's investment in any class of certificates does not exceed 25%
          of  the  outstanding  certificates  of  that  class  at  the  time  of
          acquisition;

     o    immediately after the acquisition, no more than 25% of the Plan assets
          with  respect  to which  the  investing  fiduciary  has  discretionary
          authority or renders  investment  advice are invested in  certificates
          evidencing  interests in trusts sponsored or containing assets sold or
          serviced by the same entity; and

     o    the Plan is not sponsored by any of one the Restricted Group.

     Whether the conditions in the Underwriter's PTE will be satisfied as to the
certificates  of any  particular  class will depend upon the relevant  facts and
circumstances existing at the time the Plan acquires the certificates.  Any Plan
investor who proposes to use "plan assets" of a Plan to acquire  certificates in
reliance upon the  Underwriter's PTE should determine whether the Plan satisfies
all of the applicable  conditions and consult with its counsel  regarding  other
factors that may affect the applicability of the Underwriter's PTE.

General Considerations

     Any member of the Restricted Group, a mortgagor or obligor, or any of their
affiliates  might be considered or might become a Party in Interest with respect
to a Plan. In that event,  the  acquisition  or holding of  certificates  of the
applicable  series or class by, on behalf of or with "plan  assets" of that Plan
might be viewed as  giving  rise to a  prohibited  transaction  under  ERISA and
Section 4975 of the Code,  unless the  Underwriter's PTE or another exemption is
available.  Accordingly, before a Plan investor makes the investment decision to
purchase,  to commit to purchase or to hold certificates of any series or class,
the Plan investor should determine:

     o    whether the  Underwriter's  PTE is applicable  and adequate  exemptive
          relief is available;

     o    whether any other prohibited  transaction  exemption,  if required, is
          available under ERISA and Section 4975 of the Code; or

     o    whether an exception  from "plan asset"  treatment is available to the
          applicable trust fund.

The Plan  investor  should  also  consult the ERISA  discussion,  if any, in the
applicable   prospectus   supplement  for  further  information   regarding  the
application of ERISA to any particular certificate.

     Subordinated  certificates  are not available for purchase by or with "plan
assets" of any Plan,  other than an  insurance  company  general  account  which
satisfies  the  conditions  set forth in  Sections  I and III of PTCE 95-60 or a
governmental or church plan which is not subject to ERISA or Section 4975 of the
Code, as described above,  and any acquisition of subordinated  certificates by,
on behalf of or with "plan  assets" of any such Plan will be treated as null and
void for all purposes.

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<PAGE>

Insurance Company General Accounts

     In addition to any exemption that may be available under PTCE 95-60 for the
purchase  and  holding  of the  certificates  by an  insurance  company  general
account,  the Small  Business  Job  Protection  Act of 1996 added a new  Section
401(c) to ERISA,  which provides certain exemptive relief from the provisions of
Part 4 of  Title  I of  ERISA  and  Section  4975  of the  Code,  including  the
prohibited  transaction  restrictions  imposed by ERISA and the  related  excise
taxes  imposed  by  Section  4975 of the Code,  for  transactions  involving  an
insurance company general account.  The final  regulations  issued under Section
401(c) of ERISA, or the 401(c) Regulations,  provide guidance for the purpose of
determining, in cases where insurance policies or annuity contracts supported by
an insurer's  general  account were issued to or for the benefit of a Plan on or
before December 31, 1998, which general account assets constitute "plan assets."
Pursuant to the 401(c)  Regulations,  when a Plan acquires one of these policies
or  contracts,  the Plan's  assets  include the policy or  contract,  but do not
include any of the  underlying  assets of the insurer's  general  account if the
requirements  of the 401(c)  Regulations are satisfied.  The 401(c)  Regulations
generally  become effective on July 5, 2001,  although  earlier  effective dates
apply with respect to some of the 401(c) Regulation's  requirements.  The 401(c)
Regulations  generally  provide  that,  until July 5, 2001,  no person  shall be
subject to  liability  under Part 4 of Title I of ERISA and Section  4975 of the
Code on the basis of a claim that the  assets of an  insurance  company  general
account constitute "plan assets," except in the following three circumstances:

     o    an action  brought by the  Secretary of Labor for certain  breaches of
          fiduciary  duty which would also  constitute a violation of federal or
          state criminal law;

     o    the application of any federal criminal law; or

     o    a civil action commenced before November 7, 1995.

Any assets of an insurance  company  general  account  which  support  insurance
policies  issued  to a Plan  after  December  31,  1998 or issued to Plans on or
before  December 31, 1998 for which the  insurance  company does not comply with
the 401(c)  Regulations  may be treated as "plan  assets." In addition,  because
Section 401(c) does not relate to insurance company separate accounts,  separate
account  assets are still  treated as "plan assets" of any Plan invested in such
separate account.  Insurance  companies  contemplating the investment of general
account assets in the certificates  should consult with their legal counsel with
respect to the  applicability  of  Sections I and III of PTCE 95-60 and  Section
401(c) or ERISA, including the general account's ability to continue to hold the
certificates after July 5, 2001.

     Any Plan investor who proposes to use "plan assets" of any Plan to purchase
certificates of any series or class should consult with its counsel with respect
to the  potential  consequences  under ERISA and Section 4975 of the Code of the
acquisition and ownership of those certificates.

                                Legal Investment

     The  applicable  prospectus  supplement for a series of  certificates  will
specify  whether a class or  subclass  of those  certificates,  as long as it is
rated in one of the two  highest  rating  categories  by one or more  nationally
recognized statistical rating organizations, will constitute a "mortgage related
security" for purposes of the Secondary Mortgage Market Enhancement Act of 1984,
as amended, or SMMEA. That class or subclass,  if any,  constituting a "mortgage
related security" will be a legal investment for persons, trusts,  corporations,
partnerships,  associations,  business trusts and business  entities,  including
depository  institutions,  insurance  companies,  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 those entities.

     Pursuant to SMMEA, a number of states enacted  legislation,  on or prior to
the  October 3, 1991  cutoff for  enactments,  limiting  to varying  extents the
ability of certain entities,  in particular,  insurance companies,  to invest in
"mortgage related securities," in most cases by requiring the affected investors
to rely solely upon existing state law,


                                       99
<PAGE>

and not SMMEA.  Accordingly,  the investors  affected by the legislation will be
authorized to invest in certificates qualifying as "mortgage related securities"
only to the extent provided in that 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 in mortgage  related
securities  without  limitation as to the percentage of their assets represented
thereby,  federal  credit  unions may invest in those  securities,  and national
banks may purchase those  securities for their own account without regard to the
limitations generally applicable to investment securities set forth in 12 U.S.C.
24 (Seventh),  subject in each case to any regulations as the applicable federal
regulatory  authority may prescribe.  In this connection,  federal credit unions
should  review  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
(including  securities  such  as  certain  series,   classes  or  subclasses  of
certificates), except under limited circumstances.

     The Office of Thrift  Supervision,  or the OTS, has issued Thrift  Bulletin
13a, entitled "Management of Pass-Through Rate Risk, Investment Securities,  and
Derivatives  Activities," or "TB 13a," which is effective as of December 1, 1998
and  applies to thrift  institutions  regulated  by the OTS.  One of the primary
purposes  of TB 13a is to  require  thrift  institutions,  prior to  taking  any
investment position, to:

     o    conduct  a  pre-purchase   portfolio   sensitivity  analysis  for  any
          "significant    transaction"   involving   securities   or   financial
          derivatives; and

     o    conduct a  pre-purchase  price  sensitivity  analysis of any  "complex
          security" or financial derivative.

For the purposes of TB 13a, "complex  security"  includes among other things any
collateralized  mortgage  obligation  or REMIC  security,  other than any "plain
vanilla" mortgage pass-through security,  that is, securities that are part of a
single class of securities in the related pool that are  non-callable and do not
have any special  features.  One or more classes of the certificates  offered by
this  prospectus  and the  accompanying  prospectus  supplement may be viewed as
"complex  securities." The OTS recommends that while a thrift institution should
conduct its own in-house  pre-acquisition  analysis,  it may rely on an analysis
conducted by an independent  third-party as long as management  understands  the
analysis and its key  assumptions.  Further,  TB 13a recommends  that the use of
"complex  securities with high price sensitivity" be limited to transactions and
strategies that lower a thrift  institution's  portfolio  interest rate risk. TB
13a warns that investment in complex  securities by thrift  institutions that do
not have adequate risk measurement, monitoring and control systems may be viewed
by OTS examiners as an unsafe and unsound practice.

     The predecessor to the OTS issued a bulletin entitled "Mortgage  Derivative
Products and Mortgage Swaps" applicable to thrift institutions  regulated by the
OTS.  The  bulletin  established   guidelines  for  the  investment  by  savings
institutions  in  certain  "high-risk"   mortgage   derivative   securities  and
limitations  on the use of those  securities by insolvent,  undercapitalized  or
otherwise "troubled" institutions.  According to the bulletin, these "high-risk"
mortgage   derivative   securities  include  securities  such  as  the  Class  B
Certificates.  Similar policy  statements have been issued by regulators  having
jurisdiction over other types of depository institutions.

     On April 23, 1998, the Federal Financial  Institutions  Examination Council
issued its 1998 Policy Statement.  The 1998 Policy Statement has been adopted by
the Federal Reserve Board,  the Office of the  Comptroller of the Currency,  the
FDIC, the National Credit Union Administration, or the NCUA, and the OTS with an
effective date of May 26, 1998. The 1998 Policy Statement rescinds a 1992 policy
statement  that had required,  prior to purchase,  a depository  institution  to
determine whether a mortgage derivative product that it is considering acquiring
is  high-risk,  and,  if so,  that the  proposed  acquisition  would  reduce the
institution's  overall interest rate risk. The 1998 Policy Statement  eliminates
former  constraints  on investing  in certain  "high-risk"  mortgage  derivative
products and  substitutes  broader  guidelines  for  evaluating  and  monitoring
investment risk.

     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 those authorities before purchasing any


                                      100
<PAGE>

certificates,  as certain series, classes or subclasses may be deemed unsuitable
investments,  or may  otherwise be  restricted,  under those 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.

     Investors should consult their own legal advisers in determining whether
and to what extent certificates  offered by this prospectus and the accompanying
prospectus supplement constitute legal investments for them.

                              Plan of Distribution

     Each  series of  certificates  offered  hereby and by means of the  related
prospectus  supplement  may be sold  directly by the depositor or may be offered
through Credit Suisse First Boston  Corporation,  an affiliate of the depositor,
or   underwriting   syndicates   represented   by  Credit  Suisse  First  Boston
Corporation.   The  prospectus   supplement  with  respect  to  each  series  of
certificates  will  set  forth  the  terms of the  offering  of that  series  of
certificates  and each subclass within that series,  including the name or names
of the  underwriters,  the  proceeds  to the  depositor,  and either the initial
public offering price, the discounts and commissions to the underwriters and any
discounts or concessions  allowed or reallowed to certain dealers, or the method
by which the price at which the underwriters  will sell the certificates will be
determined.

     Generally,  the  underwriters  will be  obligated  to  purchase  all of the
certificates of a series described in the prospectus  supplement with respect to
that series if any certificates are purchased.  The certificates may 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 determined at the time of sale. If stated in
the applicable prospectus supplement,  the underwriters will not be obligated to
purchase  all  of the  certificates  of a  series  described  in the  prospectus
supplement with respect to that series if any certificates are purchased.

     If  stated in the  prospectus  supplement,  the  depositor  will  authorize
underwriters or other persons acting as the depositor's agents to solicit offers
by certain institutions to purchase the certificates from the depositor pursuant
to contracts  providing for payment and delivery on a future date.  Institutions
with which those  contracts may be made include  commercial  and savings  banks,
insurance  companies,  pension  funds,  investment  companies,  educational  and
charitable  institutions and others, but in all cases those institutions must be
approved by the depositor.  The  obligation of any purchaser  under any contract
will be subject to the condition  that the purchase of the offered  certificates
shall  not at  the  time  of  delivery  be  prohibited  under  the  laws  of the
jurisdiction  to which that  purchaser is subject.  The  underwriters  and other
agents  will  not  have  any  responsibility  in  respect  of  the  validity  or
performance of those contracts.

     The  depositor  may also  sell the  certificates  offered  by means of this
prospectus  and  the  related  prospectus  supplements  from  time  to  time  in
negotiated  transactions or otherwise, at prices determined at the time of sale.
The  depositor  may effect  those  transactions  by selling  certificates  to or
through  dealers,  and those  dealers  may receive  compensation  in the form of
underwriting  discounts,  concessions or commissions  from the depositor and any
purchasers of certificates for whom they may act as agents.

                                      101
<PAGE>

     The place and time of  delivery  for each  series of  certificates  offered
hereby and by means of the related  prospectus  supplement  will be set forth in
the prospectus supplement with respect to that series.

     If and  to the  extent  required  by  applicable  law or  regulation,  this
prospectus  and the  attached  prospectus  supplement  will  also be used by the
underwriter  after the completion of the offering in connection  with offers and
sales related to market-making transactions in the offered certificates in which
the  underwriter  acts as  principal.  Sales will be made at  negotiated  prices
determined at the time of sales.

                                  Legal Matters

     Certain legal matters in connection  with the  certificates  offered hereby
will be  passed  upon for the  depositor  and for the  underwriters  by  Orrick,
Herrington & Sutcliffe  LLP, New York,  New York or by such other counsel as may
be identified in the related prospectus supplement.

                              Financial Information

     The depositor has determined that its financial statements are not material
to the offering made hereby. The certificates do not represent an interest in or
an obligation of the depositor. The depositor's only obligations for a series of
certificates  will be to  repurchase  certain  loans on any  breach  of  limited
representations  and warranties made by the depositor,  or as otherwise provided
in the applicable prospectus supplement.

                             Additional Information

     The depositor has filed the registration  statement with the Securities and
Exchange  Commission.  The depositor is also subject to some of the  information
requirements of the Securities Exchange Act of 1934, as amended, or the Exchange
Act, and,  accordingly,  will file reports  thereunder  with the  Securities and
Exchange  Commission.  The registration  statement and the exhibits thereto, and
reports and other  information filed by the depositor under the Exchange Act can
be inspected  and copied at the public  reference  facilities  maintained by the
Securities and Exchange Commission at 450 Fifth Street, N.W.,  Washington,  D.C.
20549,  and at certain of its  Regional  Offices  located  as  follows:  Chicago
Regional Office,  Citicorp Center, 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661-2511;  and Northeast Regional Office, 7 World Trade Center, Suite
1300,  New York,  New York 10048 and  electronically  through the Securities and
Exchange Commission's  Electronic Data Gathering,  Analysis and Retrieval System
at the Securities and Exchange Commission's Web Site (http://www.sec.gov).

                          Reports to Certificateholders

     Monthly reports which contain  information  concerning the trust fund for a
series  of  certificates  will be  sent by or on  behalf  of the  servicer,  the
subservicer or the trustee to each holder of record of the  certificates  of the
related   series.   See   "Description   of   the    Certificates--Reports    to
Certificateholders."   Reports  forwarded  to  holders  will  contain  financial
information  that  has  not  been  examined  or  reported  on by an  independent
certified  public  accountant.  The depositor  will file with the Securities and
Exchange  Commission  those  periodic  reports  relating to the trust fund for a
series of certificates as are required under the Exchange Act.

               Incorporation of Certain Information by Reference

     The SEC allows the depositor to  "incorporate by reference" the information
filed with the SEC by the depositor,  under Section 13(a), 13(c), 14 or 15(d) of
the  Exchange  Act,  that relates to the trust fund for the  certificates.  This
means that the depositor can disclose  important  information to any investor by
referring  the investor to these  documents.  The  information  incorporated  by
reference is an important part of this prospectus,  and information filed by the
depositor  with  the SEC that  relates  to the  trust  fund  for any  series  of
certificates will automatically update and supersede this information. Documents
that may be  incorporated  by reference for a particular  series of certificates
include an insurer's  financials,  a certificate  policy,  mortgage pool policy,
computational  materials,  collateral  term  sheets,  the  related  pooling  and
servicing agreement and amendments

                                      102
<PAGE>

thereto,  other  documents on Form 8-K and Section 13(a),  13(c), 14 or 15(d) of
Exchange Act as may be required in connection with the related trust fund.

     The depositor  will provide or cause to be provided  without charge to each
person  to whom  this  prospectus  and  accompanying  prospectus  supplement  is
delivered in connection  with the offering of one or more classes of the related
series of certificates, on written or oral request of that person, a copy of any
or all reports incorporated in this prospectus by reference, in each case to the
extent the reports relate to one or more of the classes of the related series of
certificates,  other than the exhibits to those  documents,  unless the exhibits
are specifically incorporated by reference in the documents.  Requests should be
directed in writing to Credit Suisse First Boston Mortgage  Securities Corp., 11
Madison Avenue, New York, New York 10010, Attention: Treasurer.

                                     Ratings

     It is a  condition  to the  issuance  of the  certificates  of each  series
offered hereby that at the time of issuance they shall have been rated in one of
the four highest  rating  categories by the  nationally  recognized  statistical
rating agency or agencies specified in the related prospectus supplement.

     Ratings on conduit mortgage and manufactured housing contract  pass-through
certificates  address the  likelihood  of the receipt by  certificateholders  of
their  allocable  share of principal and interest on the underlying  mortgage or
manufactured housing contract assets. These ratings address:

     o    structural and legal aspects associated with the certificates;

     o    the extent to which the  payment  stream on the  underlying  assets is
          adequate to make payments required by the certificates; and

     o    the credit quality of the credit enhancer or guarantor, if any.

     Ratings  on the  certificates  do  not,  however,  constitute  a  statement
regarding:

     o    the likelihood of principal prepayments by mortgagors or obligors;

     o    the degree by which  prepayments  made by mortgagors or obligors might
          differ from those originally anticipated; or

     o    whether the yield originally anticipated by investors of any series of
          certificates   may  be  adversely   affected  as  a  result  of  those
          prepayments.

     As a result,  investors of any series of certificates  might suffer a lower
than anticipated yield.

     A rating on any or all of the  certificates  of any series by certain other
rating  agencies,  if assigned  at all,  may be lower than the rating or ratings
assigned to the  certificates by the rating agency or agencies  specified in the
related prospectus supplement. A security rating is not a recommendation to buy,
sell or hold  certificates  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.

                                      103
<PAGE>

                                    Glossary

     Below are abbreviated  definitions of significant capitalized terms used in
this prospectus and in the accompanying  prospectus supplement.  The pooling and
servicing agreement for the related series may contain more complete definitions
of the  terms  used in this  prospectus  and in the  prospectus  supplement  and
reference should be made to the pooling and servicing  agreement for the related
series for a more complete understanding of all such terms.

     "1998 Policy Statement" means the revised supervisory statement listing the
guidelines for  investments in "high risk mortgage  securities,"  and adopted by
the Federal Reserve Board,  the Office of the  Comptroller of the Currency,  the
FDIC,  the  National  Credit Union  Administration,  or NCUA and the OTS with an
effective date of May 26, 1998.

     "401(c)  Regulations"  means the  regulations  the DOL is required to issue
under Section 401(c) of ERISA, which were published in proposed form on December
22, 1997.

     "Accrual  Distribution  Amount" means the amount of the  interest,  if any,
that has accrued but is not yet payable on the Compound Interest Certificates of
a  particular  series  since  the  prior  distribution  date,  or since the date
specified  in the  related  prospectus  supplement  in  the  case  of the  first
distribution date.

     "Advance" means as to a particular mortgage loan, contract or mortgage loan
underlying a Mortgage  Certificate and any distribution date, an amount equal to
the scheduled payments of principal and interest at the applicable mortgage rate
or annual percentage rate, as applicable,  which were delinquent as of the close
of business on the business day preceding the Determination Date on the mortgage
loan, contract or mortgage loan underlying a Mortgage Certificate.

     "Alternative  Credit  Support"  means  additional or  alternative  forms of
credit support,  including a guarantee or surety bond, acceptable to the related
Rating Agency.

     "Approved  Sale"  means,  with  respect to a series  which  utilizes a pool
insurance policy:

     o    the sale of a mortgaged  property acquired because of a default by the
          mortgagor to which the related pool insurer has given prior approval;

     o    the  foreclosure or trustee's sale of a mortgaged  property at a price
          exceeding the maximum amount specified by the related pool insurer;

     o    the acquisition of the mortgaged property under the primary insurance
          policy by the primary mortgage insurer; or

     o    the acquisition of the mortgaged property by the pool insurer.

     "Buy-Down  Fund"  means with  respect to any series,  a  custodial  account
established by the related  subservicer,  subservicer or trustee as described in
the related  prospectus  supplement,  which  contains  amounts  deposited by the
depositor,  the seller of the related  mortgaged  property,  the  subservicer or
another  source to cover  shortfalls  in  payments  created  by  Buy-Down  Loans
included in the related mortgage pool.

     "Buy-Down  Loans" means single family  mortgage loans pursuant to which the
monthly  payments made by the related  mortgagor  during the early years of that
mortgage loan will be less than the scheduled  monthly payments on that mortgage
loan.

     "Certificate  Account"  means,  with respect to each  series,  the separate
account or accounts in the name of the trustee,  which must be maintained with a
depository institution and in a manner acceptable to the related Rating Agency.

                                      104
<PAGE>

     "Certificate  Principal Balance" means, for any class of certificates,  and
as of any  distribution  date,  the initial  principal  balance of that class of
certificates,  less all amounts previously  distributed to holders of that class
of certificates, as applicable, on account of principal.

     "Code" means the Internal Revenue Code of 1986, as amended.

     "Compound  Interest  Certificates"  means certificates that accrue interest
during  certain  periods  that is not  paid to the  holder  but is  added to the
Certificate Principal Balance of the certificate.

     "Cooperative"  means a  corporation  entitled  to be  treated  as a housing
cooperative under federal tax law.

     "Cooperative  Dwelling" means a specific  dwelling unit in a building owned
by a Cooperative.

     "Cooperative  Loan" means a cooperative  apartment loan evidenced by a note
secured a by security  interest  in shares  issued by a  Cooperative  and in the
related  proprietary lease or occupancy  agreement  granting exclusive rights to
occupy a Cooperative Dwelling.

     "Custodial  Account"  means,  with  respect to each  series,  the  separate
account or accounts in the name of the  trustee,  meeting the  requirements  set
forth in this prospectus for the Certificate Account.

     "Cut-off  Date"  means,  the  date  specified  in  the  related  prospectus
supplement from which principal and interest payments on the assets of the trust
fund related to a series are transferred to that trust fund.

     "Determination   Date"  means,   with  respect  to  each  series  and  each
distribution  date,  the 20th day, or if the 20th day is not a business day, the
next  preceding  business  day, of the month of in which the  distribution  date
occurs, or some other day if stated in the related prospectus supplement.

     "Disqualified Organization" means:

     o    the United States,  any state or political  subdivision  thereof,  any
          foreign government, any international  organization,  or any agency or
          instrumentality    of   the   foregoing,    but   does   not   include
          instrumentalities described in Section 168(h)(2)(D) of the Code;

     o    any organization, other than a cooperative described in Section 521 of
          the Code, that is exempt from federal income tax, unless it is subject
          to the tax imposed by Section 511 of the Code; or

     o    any organization described in Section 1381(a)(2)(C) of the Code.

     "Due Period"  means,  with respect to any  distribution  date, the calendar
month  preceding the month of that  distribution or some other period as defined
in the related prospectus supplement.

     "Eligible  Investments"  means  any of  the  following,  in  each  case  as
determined at the time of the investment or contractual  commitment to invest in
that Eligible Investment:

     o    obligations  which  have the  benefit  of full faith and credit of the
          United States of America,  including  depositary  receipts issued by a
          bank as custodian with respect to any such instrument or security held
          by the  custodian  for the  benefit of the  holder of such  depositary
          receipt;

     o    demand  deposits or time deposits in, or bankers'  acceptances  issued
          by, any depositary institution or trust company incorporated under the
          laws of the United  States of America or any state thereof and subject
          to  supervision  and  examination  by  Federal  or  state  banking  or
          depositary institution  authorities;  provided that at the time of the
          trustee's  investment  or  contractual  commitment  to  invest in that
          Eligible  Investment,   the  certificates  of  deposit  or  short-term
          deposits, if any, or long-term unsecured debt obligations,  other than
          obligations  whose rating is based on collateral or on the credit of a
          Person  other  than  such  institution  or  trust  company,   of  that
          depositary  institution  or trust  company has a credit  rating in the
          highest rating category from the related Rating Agency;

     o    certificates of deposit having a rating in the highest rating from the
          related Rating Agency;

                                      105
<PAGE>

     o    investments  in money  market  funds  which are  rated in the  highest
          category  from the  related  Rating  Agency or which are  composed  of
          instruments  or other  investments  which  are  rated  in the  highest
          category from the related Rating Agency;

     o    commercial paper,  having original or remaining  maturities of no more
          than 270 days,  having  credit rating in the highest  rating  category
          from the related Rating Agency;

     o    repurchase  agreements  involving any Eligible Investment described in
          any of the first three bullet points above, so long as the other party
          to  the  repurchase   agreement  has  its  long-term   unsecured  debt
          obligations  rated in the  highest  rating  category  from the related
          Rating Agency;

     o    any other  investment  with respect to which the related Rating Agency
          indicates  will not result in the  reduction or withdrawal of its then
          existing rating of the certificates; or

     o    other  investments  that are  described in the  applicable  prospectus
          supplement.

Except as otherwise provided in the applicable pooling and servicing  agreement,
any Eligible  Investment must mature no later than the business day prior to the
next distribution date.

     "ERISA  Plans"  means  employee  benefit  plans  subject  to  the  Employee
Retirement Income Security Act of 1974, or ERISA.

     "FASIT"  means a  "financial  asset  securitization  trust" as described in
section 860L of the Code.

     "FASIT  Regular  Certificates"  means  certificates  or notes  representing
ownership of one or more regular interests in a FASIT.

     "FHA  Loans"  means  mortgage  loans or  contracts  insured by the  Federal
Housing Administration.

     "GPM  Fund"  means  with  respect  to  any  series,  a  custodial   account
established by the related servicer,  subservicer or trustee as described in the
related prospectus supplement, which contains amounts deposited by the depositor
or another source to cover  shortfalls in payments created by GPM Loans included
in the related mortgage pool.

     "GPM  Loans"  means  single  family  mortgage  loans  pursuant to which the
monthly payments by the related  mortgagor during the early years of the related
Mortgage  Note are less than the  amount of  interest  that would  otherwise  be
payable thereon, with that interest paid from amounts on deposit in a GPM Fund.

     "High Cost  Loans"  means  mortgage  loans,  contracts  or  mortgage  loans
underlying  Mortgage  Certificates  that  are  subject  to  the  special  rules,
disclosure  requirements  and other  provisions  that were added to the  federal
Truth-in-Lending  Act by the  Homeownership  and Equity  Protection Act of 1994,
which were originated on or after October 1, 1995, are not loans made to finance
the  purchase  of the  mortgaged  property  and have  mortgage  rates or  annual
percentage  rates, as applicable,  or origination  costs in excess of prescribed
levels.

     "Initial  Deposit"  means,  with  respect to each series in which a reserve
fund has been  established,  the  deposit of cash into the  reserve  fund in the
amount specified in the related prospectus supplement.

     "Insurance Proceeds" means, with respect to each series,  proceeds from any
special  hazard  insurance  policy,   primary  mortgage  insurance  policy,  FHA
insurance, VA guarantee, mortgagor bankruptcy bond or pool insurance policy with
respect to the related  series of  certificates  and any title,  hazard or other
insurance  policy  covering  any of the mortgage  loans  included in the related
mortgage pool, to the extent those  proceeds are not applied to the  restoration
of the  related  property  or  released  to the  mortgagor  in  accordance  with
customary servicing procedures.

     "Issue   Premium"   means  with  respect  to  a  class  of  REMIC   Regular
Certificates,  the issue price in excess of the stated  redemption price of that
class.

                                      106
<PAGE>

     "Liquidating Loan" means:

     o    each mortgage loan with respect to which foreclosure  proceedings have
          been commenced and the mortgagor's right of reinstatement has expired;

     o    each  mortgage loan with respect to which the related  subservicer  or
          the  servicer  has agreed to accept a deed to the  property in lieu of
          foreclosure;

     o    each   Cooperative  Loan  as  to  which  the  shares  of  the  related
          Cooperative and the related  proprietary lease or occupancy  agreement
          have been sold or offered for sale; or

     o    each contract with respect to which repossession proceedings have been
          commenced.

     "Liquidation Proceeds" means, with respect to each series, all cash amounts
received and retained in connection with the  liquidation of defaulted  mortgage
loans,  by foreclosure or otherwise,  other than  Insurance  Proceeds,  payments
under any applicable financial guaranty insurance policy,  surety bond or letter
of credit or proceeds of any Alternative Credit Support, if any, with respect to
the related series.

     "Mixed-Use  Mortgage  Loans"  means  mortgage  loans  secured by  Mixed-Use
Property.

     "Mixed-Use Property" means mixed residential and commercial properties.

     "Mortgage  Certificates" means certain conventional  mortgage  pass-through
certificates  issued by one or more trusts  established  by one or more  private
entities  and  evidencing  the  entire  or a  fractional  interest  in a pool of
mortgage loans.

     "Mortgage  Note" means with respect to each mortgage  loan,  the promissory
note  secured  by a first  or more  junior  mortgage  or deed of  trust or other
similar security instrument creating a first or more junior lien, as applicable,
on the related mortgaged property.

     "Parties in Interest"  means  certain  persons who have  certain  specified
relationships to a Plan, as described in Section 3(14) of ERISA and Section 4975
of the Code.

     "Pass-Through  Entity" means any regulated investment company,  real estate
investment  trust,  trust,  partnership or other  entities  described in Section
860E(e)(6)  of the  Code.  In  addition,  a  person  holding  an  interest  in a
Pass-Through Entity as a nominee for another person will, for that interest,  be
treated as a Pass-Through Entity.

     "Pass-Through  Rate" means with respect to each class of  certificates in a
series,  the rate of interest  borne by that class as  described  in the related
prospectus supplement.

     "Percentage  Interest"  means,  as to any  certificate  of any  class,  the
percentage  interest  evidenced thereby in distributions  required to be made on
the certificates in that class,  which percentage  interest will be based on the
original principal balance or notional amount of the certificates of that class.

     "Permitted Investments" means United States government securities and other
investment  grade  obligations  specified in the related  pooling and  servicing
agreement.

     "Plan  Assets  Regulation"  means the final  regulation  made by the United
States  Department of Labor,  or DOL, under which assets of an entity in which a
Plan makes an equity  investment will be treated as assets of the investing Plan
in certain circumstances.

     "Plans"  means ERISA Plans and other plans  subject to Section  4975 of the
Code.

     "Rating Agency" means, collectively,  the nationally recognized statistical
rating agency or agencies rating the related series of certificates.

                                      107
<PAGE>

     "Realized Loss" means any shortfall  between the unpaid  principal  balance
and accrued  interest on a mortgage loan,  after  application of all Liquidation
Proceeds,  Insurance  Proceeds and other amounts received in connection with the
liquidation  of that  mortgage  loan,  net of  reimbursable  costs and expenses,
including Advances.

     "Record Date" means, with respect to each  distribution  date, the close of
business  on  the  last  day  of  the  calendar  month   preceding  the  related
distribution  date,  or such other date as specified  in the related  prospectus
supplement.

     "Regular  Certificate" means a REMIC Regular Certificate or a FASIT Regular
Certificate, as applicable.

     "REMIC" means a "real estate mortgage investment conduit" as defined in
the Code.

     "REMIC  Regular  Certificates"  means  certificates  or notes  representing
ownership of one or more regular interests in a REMIC.

     "Required Reserve" means the amount specified in the prospectus supplement
for a series of certificates which utilizes a reserve fund, to be deposited into
the reserve fund.

     "Residual  Certificates"  means  one  or  more  classes  or  subclasses  of
certificates of a series that evidence a residual  interest in the related trust
fund.

     "Restricted Group" means the depositor,  any underwriter,  the trustee, any
subservicer, any pool, special hazard or primary mortgage insurer or the obligor
under any other credit support mechanism, a mortgagor or obligor with respect to
obligations  constituting  more than 5% of the aggregate  unamortized  principal
balance  of the  assets of the  related  trust  fund on the date of the  initial
issuance of certificates, or any of their affiliates.

     "Servicing  Account" means the separate account or accounts  established by
each  subservicer for the deposit of amounts received in respect of the mortgage
loans,  contracts  or  mortgage  loans  underlying  the  Mortgage  Certificates,
serviced by that subservicer.

     "Simple  Interest  Loans" means  mortgage loans that provide that scheduled
interest and principal  payments  thereon are applied first to interest  accrued
from the last date to which  interest  has been paid to the date the  payment is
received and the balance thereof is applied to principal.

     "Subordinated  Amount"  means the amount of  subordination  with respect to
subordinated  certificates  stated in the  prospectus  supplement  relating to a
series of certificates that contains subordinate certificates.

     "Trust Assets" means with respect to each series of certificates, the
mortgage loans, contracts or Mortgage Certificates conveyed to the related trust
fund.

     "Underwriter's PTE" means the final prohibited transaction exemption issued
to First Boston, 54 Fed. Reg. 42597 (Oct. 17, 1989), as amended by PTE 97-34, 62
Fed. Reg. 39021 (July 21, 1997).

     "VA Loans" means  mortgage loans or contracts  partially  guaranteed by the
United States Department of Veterans Affairs.

<PAGE>

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Other Expenses of Issuance and Distribution (Item 14 of Form S-3).

      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 and filing fee, are estimated.


----------------------------------------------------------------------
Filing Fee for Registration         $      396,000
Statement
----------------------------------------------------------------------
----------------------------------------------------------------------
Legal Fees and Expenses             $      450,000
----------------------------------------------------------------------
----------------------------------------------------------------------
Accounting Fees and Expenses        $      125,000
----------------------------------------------------------------------
----------------------------------------------------------------------
Trustee's Fees and Expenses         $       75,000
----------------------------------------------------------------------
----------------------------------------------------------------------
   (including counsel fees)
----------------------------------------------------------------------
----------------------------------------------------------------------
Printing and Engraving Expenses     $      100,000
----------------------------------------------------------------------
----------------------------------------------------------------------
Rating Agency Fees                  $      600,000
----------------------------------------------------------------------
----------------------------------------------------------------------
Miscellaneous                       $      100,000
----------------------------------------------------------------------
----------------------------------------------------------------------

----------------------------------------------------------------------
----------------------------------------------------------------------
Total                               $    1,846 000
----------------------------------------------------------------------


Indemnification of Directors and Officers (Item 15 of Form S-3).

      Article 5 of the Restated  Certificate of  Incorporation  of the Depositor
and Article X of the By-Laws of the Depositor  provide for the  indemnification,
within the  limits  permitted  by the  General  Corporation  Law of the State of
Delaware, of directors,  officers,  employees, and agents of the Corporation and
of persons  who serve other  enterprises  in such or similar  capacities  at the
request of the  Corporation,  against  expenses,  including  attorney's fees and
liabilities for actions they take in such capacities.

      Subsection (a) of Section 145 of the General  Corporation  Law of Delaware
empowers  a  corporation  to  indemnify  any  person who was or is a party or is
threatened to be made a party to any  threatened,  pending or completed  action,
suit or proceeding,  whether civil,  criminal,  administrative  or investigative
(other  than an action by or in the right of the  corporation)  by reason of the
fact  that he is or was a  director,  officer,  employee  or  agent  of  another
corporation  or is or  was  serving  at the  request  of  the  corporation  as a
director, officer, employee or agent of another corporation,  partnership, joint
venture,  trust or other  enterprise,  against  expenses  (including  attorneys'
fees), judgments, fines and amounts paid in settlement,  actually and reasonably
incurred by him or her in connection with such action,  suit or proceeding if he
or she acted in good faith and in a manner he or she  reasonably  believed to be
in or not opposed to the best interests of the corporation,  and with respect to
any criminal  action or  proceeding,  had no cause to believe his or her conduct
was unlawful.

                                      II-1
<PAGE>

      Subsection  (b) of Section 145 empowers a  corporation  to  indemnify  any
person  who  was or is a  party  or is  threatened  to be  made a  party  to any
threatened,  pending  or  completed  action  or suit by or in the  right  of the
corporation  to procure a judgment  in its favor by reason of the fact that such
person  acted  in  any of the  capacities  set  forth  above,  against  expenses
(including   attorneys'  fees)  actually  and  reasonably  incurred  by  him  in
connection  with the defense or settlement of such action or suit if he acted in
good faith and in a manner he reasonably believed to be in or not opposed to the
best interests of the corporation and except that no indemnification may be made
in respect to any claim, issue or matter as to which such person shall have been
adjudged to be liable to the corporation  unless and only to the extent that the
Court of Chancery  or the court in which such  action or suit was brought  shall
determine that despite the  adjudication  of liability such person is fairly and
reasonably  entitled to indemnify for such  expenses  which the court shall deem
proper.

      Section  145  further  provides  that to the extent a  director,  officer,
employee or agent of a  corporation  has been  successful  in the defense of any
action,  suit or  proceeding  referred to in  subsections  (a) and (b) or in the
defense of any claim, issue or matter therein,  he shall be indemnified  against
expenses (including  attorney's fees) actually and reasonably incurred by him in
connection  therewith;  that indemnification or advancement of expenses provided
for by Section 145 shall not be deemed  exclusive  of any other  rights to which
the indemnified party may be entitled;  and empowers the corporation to purchase
and maintain  insurance on behalf of a director,  officer,  employee or agent of
the corporation against any liability asserted against him or incurred by him in
any such  capacity  or  arising  out of his  status as such  whether  or not the
corporation would have the power to indemnify him against such liabilities under
Section 145. Reference is made to Exhibit 3.1 of this Registration Statement for
the complete text of the Restated  Certificate of Incorporation and reference is
made to Exhibit 3.2 of this Registration  Statement for the complete text of the
By-laws.

      The ultimate  parent of the  Depositor  carries  directors'  and officers'
liability  insurance  that  covers  certain  liabilities  and  expenses  of  the
Depositor's directors and officers.

      Any underwriters  who execute an Underwriting  Agreement in the form filed
as  Exhibit  1.1 to this  Registration  Statement  will agree to  indemnify  the
Registrants'  directors and its officers who signed this Registration  Statement
against certain  liabilities  which might arise under the Securities Act of 1933
from certain  information  furnished to the  Registrant  by or on behalf of such
indemnifying party. For provisions  regarding the indemnification of controlling
persons, directors and officers of the Depositor by Underwriters against certain
liabilities, including liabilities under the Securities Act of 1933, as amended,
reference  is made to the  proposed  form of  Underwriting  Agreement  filed  as
Exhibit 1.1 to this Registration Statement.




                                      II-2
<PAGE>




Exhibits (Item 16 of Form S-3).

(a)   Financial Statement filed as part of the Registration
Statement: none

(b)   Exhibits:


EXHIBIT NUMBER
        ------
                 DESCRIPTION

 *1.1            Form of Underwriting Agreement
 *3.1            Restated Certificate of Incorporation

                 of Depositor
 *3.2            By-laws of Depositor

 *4.1            Form of Pooling and Servicing Agreement
 *4.2            Form of Sale and Purchase Agreement
 *4.3            Form of Trust Agreement
 *5.1            Opinion of Orrick, Herrington &
                 Sutcliffe LLP with respect to certain
                 matters involving the Certificates
 *8.1            Opinion of Orrick, Herrington &
                 Sutcliffe LLP as to tax matters
 *23.1           Consent of Orrick, Herrington &
                 Sutcliffe LLP (included as part of
                 Exhibits 5.1 and 8.1)
 *24.1           Power of Attorney
 *24.2           Certified Copy of the Resolutions of

                 the Board of Directors of Depositor

-------------------

* As previously filed with this Registration Statement.



<PAGE>


Undertakings (Item 17 of Form S-3)


In accordance  with Item 512 of Regulation S-K under the Securities Act of 1933,
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:

      (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.
Notwithstanding the foregoing,  any increase or decrease in volume of securities
offered (if the total dollar value of  securities  offered would not exceed that
which  was  registered)  and any  deviation  from  the  low or  high  and of the
estimated  maximum  offering  range may be reflected  in the form of  prospectus
filed with the  Commission  pursuant  to Rule 424(b) if, in the  aggregate,  the
changes in volume  and price  represent  no more than 20  percent  change in the
maximum  aggregate  offering price set forth in the "Calculation of Registration
Fee" table in the effective 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.

(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)  As to documents subsequently filed that are
incorporated by reference:

The undersigned  registrant  hereby  undertakes that, for purpose of determining
any liability under the Securities Act of 1933, each filing of the  registrant's
annual  report  pursuant  to Section  13(a) or Section  15(d) of the  Securities
Exchange Act of 1934 (and, where applicable,  each filing of an employee benefit
plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of
1934) that is incorporated by reference in this registration  statement shall be
deemed to be a new  registration  statement  relating to the securities  offered
herein,  and the offering of such  securities at that time shall be deemed to be
the initial bona fide offering thereof.

      (c)  Undertaking in respect of indemnification:
<PAGE>

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 Act 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
director,  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 Act and will be governed by the final adjudication of
such issue.


<PAGE>
                                   SIGNATURES


           Pursuant  to the  requirements  of the  Securities  Act of  1933,  as
amended, the Registrant certifies that it has reasonable grounds to believe that
it meets all of the  requirements  for filing on Form S-3,  reasonably  believes
that the security rating requirement referred to in Transaction  Requirement B.2
or B.5 of Form S-3 will be met by the time of sale of the securities  registered
hereby,  and has duly caused this Amendment No. 3 to the Registration  Statement
to be signed on its behalf by the undersigned, thereunto duly authorized, in the
City of New York, State of New York, on August 8, 2000.

                    CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.



                               By: /s/ Patrick D. Coleman*
                                  _________________________
                                   Patrick D. Coleman
                                   President

Pursuant to the requirements of the Securities Act of 1933, this Amendment No. 3
to the  Registration  Statement has been signed by the following  persons in the
capacities and on the date indicated:

           Signature                Title                         Date

/s/ Patrick D. Coleman*        Director and President      August 8, 2000
_________________________
PATRICK D. COLEMAN             (Principal Executive
                               Officer)

/s/ Scott J. Ulm*             Director and Chairman        August 8, 2000
---------------------------   of the Board
SCOTT J. ULM

/s/ William Pitofsky*         Director                     August 8, 2000
---------------------------   and Vice President
WILLIAM PITOFSKY

/s/ Carlos Onis*              Director                     August 8, 2000
___________________________
CARLOS ONIS

/s/ Zev Kindler*              Treasurer                    August 8, 2000
--------------------------    (Principal Financial Officer)
ZEV KINDLER

/s/ Thomas Zingalli*          Vice President               August 8, 2000
---------------------------   and Controller
THOMAS ZINGALLI              (Principal Accounting Officer)



* By: /s/ Greg Petroski
________________________
      Greg Petroski

      Attorney-in-fact pursuant
      to a power of attorney filed
      with the Registration
      Statement




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