Ambac                        Ambac Assurance Corporation
                             c/o CT Corporation Systems
                             44 East Mifflin Street, Madison, Wisconsin
                             53703
                             Administrative Office:
                             One State Street Plaza, New York, New York
                             10004
                             Telephone:  (212) 668-0340


Certificate Guaranty Insurance Policy
Insured Obligations:                                        Policy Number:

GMACM Mortgage Loan Trust 2000-J6 GMACM                     AB0424BE
Mortgage Pass-Through Certificates, Series 2000-J6, Class
A-5, A-6, A-7, A-8, A-9, A-10 and A-11
                                              Premium:

                                              As specified in the endorsement
                                              attached hereto


Ambac  Assurance  Corporation  (Ambac) A Wisconsin  Stock  Insurance  Company in
consideration  of the  payment of the  premium  and subject to the terms of this
Policy, hereby agrees  unconditionally and irrevocably to pay to the Trustee for
the  benefit of the  Holders of the  Insured  Obligations,  that  portion of the
Insured Amounts which shall become Due for Payment but shall be unpaid by reason
of Nonpayment.

Ambac will make such  payments to the Trustee from its own funds on the later of
(a) one (1) Business Day  following  notification  to Ambac of Nonpayment or (b)
the Business Day on which the Insured Amounts are Due for Payment. Such payments
of principal or interest shall be made only upon  presentation  of an instrument
of assignment in form and substance satisfactory to Ambac, transferring to Ambac
all rights  under such  Insured  Obligations  to receive  the  principal  of and
interest  on the  Insured  Obligation.  Ambac  shall  be  subrogated  to all the
Holders'  rights to  payment  on the  Insured  Obligations  to the extent of the
insurance  disbursements so made. Once payments of the Insured Amounts have been
made to the Trustee, Ambac shall have no further obligation hereunder in respect
of such Insured Amounts.

In the event the Trustee for the Insured Obligations has notice that any payment
of  principal  or  interest  on an Insured  Obligation  which has become Due for
Payment  and which is made to a Holder by or on behalf of the  Trustee  has been
deemed a  preferential  transfer  and  theretofore  recovered  from  its  Holder
pursuant  to the  United  States  Bankruptcy  Code in  accordance  with a final,
nonappealable  order of a court of competent  jurisdiction,  such Holder will be
entitled  to payment  from Ambac to the extent of such  recovery  if  sufficient
funds are not otherwise available.

This  Policy is  noncancelable  by Ambac for any  reason,  including  failure to
receive payment of any premium due hereunder.  The premium on this Policy is not
refundable  for any  reason.  This Policy  does not insure  against  loss of any
prepayment  or other  acceleration  payment  which at any time may become due in
respect of any Insured  Obligation,  other than at the sole option of Ambac, nor
against any risk other than Nonpayment, including failure of the Trustee to make
any payment due Holders of Insured Amounts.

To the fullest  extent  permitted by  applicable  law,  Ambac hereby  waives and
agrees not to assert any and all rights and defenses,  to the extent such rights
and  defenses may be available  to Ambac,  to avoid  payment of its  obligations
under this Policy in accordance with the express provisions hereof.

Any capitalized terms not defined herein shall have the meaning given such terms
in the endorsement attached hereto or in the Agreement.

In  witness  whereof,  Ambac  has  caused  this  Policy to be  affixed  with its
corporate seal and to be signed by its duly authorized  officers in facsimile to
become  effective as their original  signatures and binding upon Ambac by virtue
of the countersignature of its duly authorized representative.



/s/ Philip B. Lassiter                             /s/  Anne G. Gill
President                                          Secretary

                                                   /s/ Jeffery D. Nabi
Effective Date: December 21, 2000                  Authorized Representative

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                                EXECUTED VERSION



                CERTIFICATE GUARANTY INSURANCE POLICY ENDORSEMENT


Attached to and forming                          Effective Date of Endorsement:
part of Policy No. AB0424BE                                   December 21, 2000
issued to:

Wells Fargo Bank Minnesota,  National Association, as Trustee for the Holders of
the GMACM Mortgage Pass-Through  Certificates,  Series 2000-J6, Class A-5, Class
A-6, Class A-7, Class A-8, Class A-9, Class A-10 and Class A-11

        For all  purposes of this  Policy,  the  following  terms shall have the
following meanings:

        "Accrued  Certificate  Interest"  has  the  meaning  set  forth  in  the
Agreement;  provided,  however,  that for all purposes of this  Policy,  Accrued
Certificate  Interest on the Insured  Certificates  shall include any Prepayment
Interest Shortfalls and any shortfalls resulting from the Soldiers' and Sailors'
Civil Relief Act of 1940, as amended,  or similar  legislation  allocated to the
Insured Certificates (but only to the extent that such amounts are not offset by
Compensating  Interest  paid by the  Servicer  or  withdrawals  from the Insured
Reserve Fund).

        "Agreement" shall mean the Pooling and Servicing Agreement,  dated as of
December 21, 2000,  between  Residential Asset Mortgage  Products,  Inc., as the
Company, GMAC Mortgage Corporation, as Servicer, and Wells Fargo Bank Minnesota,
National Association,  as Trustee, as such Agreement may be amended, modified or
supplemented from time to time as set forth in the Agreement,  provided that any
such amendment,  modification or supplement  shall have been approved in writing
by the Insurer.

        "Business  Day" shall mean any day other than (i) a Saturday or a Sunday
or  (ii)  a day  on  which  banking  institutions  in the  States  of New  York,
Pennsylvania,  Minnesota  or Maryland  are  authorized  or  obligated  by law or
executive order to be closed.

        "Certificate  Guarantee  Insurance  Policy" or "Policy"  shall mean this
Certificate  Guaranty  Insurance Policy together with each and every endorsement
hereto.

        "Distribution  Date"  shall  mean the 25th day of any  month (or if such
25th day is not a Business Day, the first  Business Day  immediately  following)
beginning with the First Distribution Date.

        "Due for Payment" shall mean with respect to any Insured  Amounts,  such
amount that is due and payable  pursuant  to the terms of the  Agreement  on the
related Distribution Date.

        "First Distribution Date" shall mean January 25, 2001.

        "Guaranteed  Distributions"  shall  mean,  with  respect to the  Insured
Certificates as of any  Distribution  Date (after  application of amounts in the

<PAGE>


Insured  Reserve  Fund and any  Compensating  Interest  allocated to the Insured
Certificates),  the  distribution  to be  made  to the  Holders  of the  Insured
Certificates  in an  aggregate  amount  equal  to the  sum of  (1)  the  Accrued
Certificate  Interest thereon,  (2) the principal portion of any Realized Losses
allocated to the Insured  Certificates  on such  Distribution  Date, and (3) the
Certificate  Principal Balance of the Insured  Certificates to the extent unpaid
on the final Distribution Date or earlier termination of the Trust Fund pursuant
to the terms of the Agreement.

        "Holder" shall mean any person who is the registered owner or beneficial
owner of any Insured Certificate.

        "Indemnification  Agreement" shall mean the  Indemnification  Agreement,
dated as of December __, 2000, among Residential Asset Mortgage Products,  Inc.,
as Depositor,  GMAC Mortgage Corporation,  and Ambac Assurance  Corporation,  as
such Agreement may be amended, modified or supplemented from time to time.

        "Insured Amounts" shall mean, with respect to any Distribution Date, the
Guaranteed Distributions for such Distribution Date.

        "Insured Certificates" shall mean any one of the Certificates designated
as a Class A-5 Certificate,  a Class A-6 Certificate, a Class A-7 Certificate, a
Class A-8 Certificate,  a Class A-9  Certificate,  a Class A-10 Certificate or a
Class A-11  Certificate,  substantially  in the form set forth in Exhibit A-1 to
the Agreement.

        "Insured  Payments" shall mean, with respect to any  Distribution  Date,
the aggregate  amount  actually paid by the Insurer to the Trustee in respect of
(i) Insured Amounts for such Distribution  Date and (ii) Preference  Amounts for
any given Business Day.

        "Insurer"  shall  mean Ambac  Assurance  Corporation,  or any  successor
thereto, as issuer of the Certificate Guaranty Insurance Policy.

        "Nonpayment"  shall mean,  with  respect to any  Distribution  Date,  an
Insured Amount which is Due for Payment but has not been and will not be paid in
respect of such Distribution Date pursuant to the Agreement.

        "Notice"  shall mean the  telephonic  or  telegraphic  notice,  promptly
confirmed in writing by telecopy  substantially  in the form of Exhibit A to the
Policy,  the  original  of which is  subsequently  delivered  by  registered  or
certified  mail,  from the Trustee  specifying the Insured Amount which shall be
due and owing on the applicable Distribution Date.

        "Preference  Amount" means any payment of Insured Amounts on any Insured
Certificate which has become Due for Payment and which is made to a Holder by or
on behalf of the  Trustee  which has been  deemed a  preferential  transfer  and
theretofore  recovered from its Holder pursuant to the United States  Bankruptcy
Code in accordance  with a final,  non-appealable  order of a court of competent
jurisdiction.

        "Term of the Policy"  shall mean the period from and  including the date
of issuance of the Policy to and including the date on which (i) the Certificate
Principal Balance of the Insured Certifcates is reduced to zero, (ii) any period
during which any payment of the Insured  Certificates could have been avoided in
whole  or  in  part  as  a  preference  payment  under  applicable   bankruptcy,
insolvency,   receivership  or  similar  law  has  expired,  and  (iii)  if  any
proceedings  requisite to avoidance as a preference  payment have been commenced
prior to the  occurrence  of (i) and (ii),  a final and  nonappealable  order in
resolution of each such proceeding has been entered.


<PAGE>


        "Trustee" shall mean Wells Fargo Bank Minnesota,  National  Association,
or its successor-in-interest, in its capacity as trustee under the Agreement, or
if any  successor  trustee or any  co-trustee  shall be  appointed  as  provided
therein,  then  "Trustee"  shall  also  mean  such  successor  trustee  or  such
co-trustee, as the case may be, subject to the provisions thereof.

        Capitalized  terms used herein and not otherwise  defined shall have the
meaning  assigned to them in the  Agreement  as of the date of  execution of the
Policy,  without giving effect to any subsequent amendment to or modification of
the Agreement unless such amendment or modification has been approved in writing
by the Insurer.

        As  provided  by the Policy,  the  Insurer  will pay any amount  payable
hereunder  no later than  12:00  noon,  New York City time,  on the later of the
Distribution Date on which the related Insured Amount is due or the Business Day
following  actual receipt in New York, New York on a Business Day by the Insurer
of a Notice;  provided  that, if such Notice is received  after 12:00 noon,  New
York City time,  on such  Business Day, it shall be deemed to be received on the
following Business Day. If any such Notice is not in proper form or is otherwise
insufficient  for the purpose of making a claim  under the  Policy,  it shall be
deemed not to have been received for purposes of this paragraph, and the Insurer
shall  promptly  so advise the  Trustee and the Trustee may submit an amended or
corrected Notice.

        The Insurer shall pay any Preference Amount when due to be paid pursuant
to the Order referred to below, but in any event on the  Distribution  Date next
following  actual  receipt on a Business  Day by the  Insurer of (i) a certified
copy of a  final,  non-appealable  order of a court  or  other  body  exercising
jurisdiction in such insolvency proceeding to the effect that the Trustee or the
Holder is required to return such Preference Amount paid during the term of this
Policy  because  such  payments  were  avoided  as a  preferential  transfer  or
otherwise rescinded or required to be restored by the Trustee or the Holder (the
"Order"),  (ii) a certificate  by or on behalf of the Trustee that the Order has
been entered and is not subject to any stay,  (iii) an  assignment,  in form and
substance  satisfactory  to the  Insurer,  duly  executed  and  delivered by the
Trustee,  irrevocably  assigning  to the  Insurer  all  rights and claims of the
Trustee or the Holder  relating to or arising  under the  Agreement  against the
estate of the Trustee or otherwise  with respect to such  Preference  Amount and
(iv) a Notice  of  Nonpayment  (attached  hereto  as  Exhibit  A)  appropriately
completed  and executed by the Trustee.  Such payment  shall be disbursed to the
receiver,  conservator,  debtor-in-possession  or trustee in bankruptcy named in
the Order, and not to the Trustee or the Holder, as applicable, directly, unless
the Trustee or the Holder,  as applicable,  has made a payment of the Preference
Amount  to the  court or such  receiver,  conservator,  debtor-in-possession  or
trustee in bankruptcy named in the Order, in which case the Insurer will pay the
Trustee  on behalf  of the  Holder,  subject  to the  delivery  of (a) the items
refereed to in clauses  (i),  (ii),  (iii) and (iv) above to the Insurer and (b)
evidence satisfactory to the Insurer that payment has been made to such court or
receiver,  conservator,  debtor-in-possession  or trustee in bankruptcy named in
the Order.

        The Insurer  hereby  agrees that it shall be subrogated to the rights of
Holders by virtue of any previous  payment  under this Policy  provided  that no
recovery  of such  payment  will occur  unless the full  amount of the  Holders'
allocable distributions for such Distribution Date can be made. In so doing, the
Insurer does not waive its rights to seek full payment of all amounts owed to it
under the Agreement.

                                        3

<PAGE>


        The terms and  provisions of the Agreement  constitute the instrument of
assignment referred to in the second paragraph of the face of this Policy.

        A premium  will be payable on this Policy on each  Distribution  Date as
provided  in  Section  4.02(a)  of  the  Agreement,  beginning  with  the  First
Distribution  Date, in an amount,  with respect to each Distribution Date, equal
to the Insurance Premium (as defined in the Agreement).

        The Policy to which this Endorsement is attached and of which it forms a
part is hereby  amended to provide that there shall be no  acceleration  payment
due under the  Policy  unless  such  acceleration  is at the sole  option of the
Insurer.  The Policy is further  hereby  amended,  to the extent  necessary,  to
clarify that the reference to "loss of any prepayment or any other  acceleration
payment"  in the fourth  paragraph  of the face of the Policy  does not refer to
that portion of any  shortfall,  if any, in interest on any mortgage loan in any
month in which such mortgage loan is paid prior to its stated maturity.

        This  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) or any
other taxes, withholding or other charge imposed by any governmental authority.

        On and after the completion of the Term of the Policy,  the Policy shall
be void and of no force and effect whatsoever.

        Nothing herein contained shall be held to vary,  alter,  waive or extend
any of the terms, conditions, provisions, agreements or limitations of the above
mentioned  Policy  other than as above  stated.  Notwithstanding  the  foregoing
sentence,  if there is any conflict or inconsistency between the Policy and this
Endorsement, the terms of this Endorsement shall control.

        No waiver of any  rights or powers of the  Insurer,  the  Holders or the
Trustee or consent by any of them shall be valid unless  signed by an authorized
officer or agent thereof.

        This  Policy is 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 provisions thereof).

                                        4

<PAGE>



        IN  WITNESS  WHEREOF,   Ambac  Assurance  Corporation  has  caused  this
Endorsement to the Policy to be signed by its duly authorized officers.

First Vice President                               Assistant Secretary



  /s/ Jeffery D. Nabi                                /s/ Melissa L. Velie
----------------------------                       -----------------------------


                                        5
<PAGE>



                                EXECUTED VERSION

                                    EXHIBIT A
                  TO THE CERTIFICATE GUARANTY INSURANCE POLICY
                               Policy No. AB0424BE


                         NOTICE OF NONPAYMENT AND DEMAND
                         FOR PAYMENT OF INSURED AMOUNTS

                                                          Date:  [      ]

Ambac Assurance Corporation
One State Street Plaza
New York, New York 10004
Attention: General Counsel

        Reference is made to Certificate  Guaranty Insurance Policy No. AB0424BE
(the  "Policy")  issued  by  Ambac  Assurance   Corporation   ("Ambac").   Terms
capitalized  herein and not otherwise defined shall have the meanings  specified
in the  Policy  and the  Agreement,  as the  case  may be,  unless  the  context
otherwise requires.

        The Trustee hereby certifies as follows:

          1.   The Trustee is the Trustee under the Agreement for the Holders.

          2.   The relevant Distribution Date is [date].

          3.   Payment   on  the   Insured   Certificates   in  respect  of  the
               Distribution  Date is due to be received on  ____________________
               under the Agreement, in an amount equal to $________________.

          4.   There  is  a  shortfall  of   $______________   in  a  Guaranteed
               Distribution in respect of the Insured Certificates, which amount
               is an Insured Amount pursuant to the terms of the Agreement.

          5.   The  Trustee  has not  heretofore  made a demand for the  Insured
               Amount in respect of the Distribution Date.

          6.   The Trustee  hereby  requests  the payment of the Insured  Amount
               that is Due for  Payment  be made by Ambac  under the  Policy and
               directs  that payment  under the Policy be made to the  following
               account by bank wire  transfer  of  federal or other  immediately
               available  funds in  accordance  with the terms of the Policy to:
               ____________________________________ Trustee's account number.

          7.   The Trustee hereby agrees that,  following receipt of the Insured
               Amount  from Ambac,  it shall (a) hold such  amounts in trust and
               apply the same  directly  to the  distribution  of payment on the
               Insured  Certificates  when due; (b) not apply such funds for any
               other  purpose;  (c)  deposit  such  funds  to the  Ambac  Policy
               Payments  Account and not  commingle  such funds with other funds
               held by the Trustee and (d)  maintain an accurate  record of such
               payments  with  respect  to  each  Insured  Certificate  and  the
               corresponding claim on the Policy and proceeds thereof.

                                   [Name of Trustee]



                                   By:
                                      ---------------------------------

                                   Title:
                                         ------------------------------
                                                 (Officer)



<PAGE>