PLEDGE AND SECURITY AGREEMENT


        THIS SECURITY AGREEMENT, made as of the 30th day of June 1998, is by and
between GENERAL  ELECTRIC  CAPITAL  CORPORATION,  a New York corporation with an
address at 44 Old Ridgebury Road, Danbury,  CT 06811 (the "Secured Party"),  and
American  Finance  Group,  Inc., a corporation  organized and existing under the
laws of the State of Delaware  with its chief  executive  offices  located at 24
School Street, Boston, MA 02108 (the "Debtor").

         In  consideration of the promises herein contained and of certain other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, Debtor and Secured Party hereby agree as follows:

         I. CREATION OF SECURITY INTEREST.

         As security for the payment of any and all  obligations and liabilities
of any nature whatsoever,  whether primary, secondary, direct, contingent, sole,
joint or several,  due or to become due, now existing or hereafter contracted or
acquired,  of Debtor to Secured Party,  including without limitation the payment
of all sums due or to become due and the performance of all obligations pursuant
to certain  Promissory  Notes (each,  a "Note",  together  the "Notes")  made by
Debtor to the order of Secured  Party,  identified  on any  collateral  schedule
which,  from time to time,  may be  annexed  hereto and  incorporated  herein by
reference  ("Collateral  Schedule"),  and modifications  thereof (any and all of
which are sometimes referred to hereafter as the "Indebtedness"),  Debtor hereby
gives,  grants and assigns to Secured  Party,  its  successors  and  assigns,  a
security  interest in and against the Lease Agreement  between Debtor and Oxford
Health  Plans,  Inc.,  dated  February 10, 1998 and  Equipment  Schedule Nos. 10
attached hereto (the Lease  Agreement and all such equipment  schedules shall be
hereinafter  collectively and individually  referred to as the "Lease"),  all of
the equipment  leased  thereunder (the  "Equipment")  and any and all additional
property  pledged to Debtor pursuant to any such Lease now and hereafter  listed
on any  such  Collateral  Schedule  and in and  against  any and all  additions,
attachments,  accessories  and accessions  thereto,  any and all  substitutions,
replacements  or exchanges  therefore,  and any and all  insurance  and/or other
proceeds of the Lease,  Equipment  and other  property  in and  against  which a
security interest is granted hereunder,  all of which Lease, Equipment and other
property and proceeds are hereinafter  individually and collectively referred to
as the ("Collateral").

         2.     RIGHTS OF SECURED PARTY.

(a)  If  requested  by  Debtor,  Secured  Party  may,  but  shall in no event be
     obligated to, accept and/or  designate  substitutions  and exchanges of the
     Lease,  Equipment or other property  already pledged  hereunder for leases,
     equipment or other property not already pledged hereunder, and additions to
     the Lease,  Equipment and other property,  constituting  all or any part of
     the  Collateral.  Such  substitutions,  exchanges  and  additions  shall be
     accomplished  at any time and from time to time, by the  substitution  of a
     revised  Collateral  Schedule for the Collateral  Schedule now or hereafter
     annexed.  Any lease,  equipment or other property which may be substituted,
     exchanged  or  added  as  aforesaid  shall  constitute  a  portion  of  the
     Collateral and shall be subject to the security  interest  granted  herein.
     Any  substitution,  exchange or  addition  of a lease or leases  under this
     Security  Agreement shall be conditioned on the receipt by Secured Party of
     Debtor's  representations  and  warranties,  in  writing,  as to each  such
     substituted,  exchanged  or  added  lease  (each,  a  "Replacement  Lease")
     substantially in the form of Section 3(k) hereof.  Replacement Leases to be
     pledged  pursuant to the terms of Section 50) hereof shall be have a value,
     as determined by Secured  Party in its sole  discretion,  at least equal to
     the value of the Lease or Leases to be replaced  pursuant  to said  Section
     50).

(b)  Additions  to,  reductions  or  exchanges  of, or  substitutions  for,  the
     Collateral,  payments on account of any  obligation  or  liability  secured
     hereby, or increases in the obligations and liabilities  secured hereby, or
     the creation of additional  obligations and liabilities secured hereby, may
     from time to time be made or occur without affecting the provisions of this
     Security  Agreement or the provisions of any obligation or liability  which
     this Security Agreement secures.

(c)  The  surrender of a Note or other  document  evidencing  an  obligation  or
     liability  secured  hereby upon payment or otherwise,  shall not affect the
     rights of Secured Party to retain the Collateral for such other obligations
     and  liabilities as may then exist or as it may be reasonably  contemplated
     will exist in the future.

(d)  Any  third  person  at any time and from  time to time  holding  all or any
     portion  of the  Collateral  shall  be  deemed  to,  and  shall,  hold  the
     Collateral as the agent of, and as pledge holder for, Secured Party. At any
     time and from  time to time,  Secured  Party  may give  notice to any third
     person holding all or any portion of the Collateral  that such third person
     is holding the  Collateral  as the agent of, and as pledge  holder for, the
     Secured Party.

3.        REPRESENTATIONS AND WARRANTIES OF DEBTOR.

        Debtor  hereby  represents  and warrants as of the date hereof and as of
the date of execution of each Collateral Schedule hereto that:

        (a) Debtor is duly  organized,  existing and in good standing  under the
laws of the State set forth in the first  paragraph of this Security  Agreement,
has its chief  executive  offices at the location  set forth in such  paragraph,
and, to the best of Debtor's knowledge,  is duly qualified and licensed in every
jurisdiction wherever necessary to carry on its present business and operations;

        (b) Debtor has adequate power and capacity to enter into, and to perform
its  obligations,  under  this  Security  Agreement,  each  Note  and any  other
documents evidencing,  or given in connection with, any of the Indebtedness (all
of the  foregoing  being  hereinafter  collectively  referred  to as  the  "Loan
Documents");

        (c) The Loan Documents have been duly authorized, executed and delivered
by Debtor and  constitute  legal,  valid and binding  agreements  enforceable in
accordance  with their  terms,  except to the  extent  that the  enforcement  of
remedies may be limited under applicable bankruptcy and insolvency laws;

        (d) No approval,  consent or  withholding of objections is required from
any governmental authority or instrumentality with respect to the entry into, or
performance  by,  Debtor of any of the Loan  Documents,  except such as may have
already been obtained;

         (e) The entry into,  and  performance  by, Debtor of the Loan Documents
will not (i)  violate  any of the  organizational  documents  of  Debtor  or any
judgment,  order, law or regulation  applicable to Debtor, or (ii) result in any
breach of,  constitute a default  under,  or result in the creation of any lien,
claim or  encumbrance  (except for the lien created by Secured  Party under this
Security  Agreement)  pursuant to, any indenture  mortgage,  deed of trust, bank
loan,  credit  agreement,  or other agreement or instrument to which Debtor is a
party;

        (f) There are no suits, or proceedings pending or threatened in court or
before any commission, board or other administrative agency against or affecting
Debtor which could, in the aggregate,  have a material adverse effect on Debtor,
its business or operations,  or its ability to perform its obligations under the
Loan Documents;

        (g)  All  financial  statements  of  Debtor  and  any of its  affiliates
delivered  to Secured  Party have been  prepared in  accordance  with  generally
accepted accounting principles,  and since the date of the most recent financial
statement, there has been no material adverse change;

        (h) The Equipment pledged hereunder is and will remain in good condition
in accordance with theLease.

        (i) Debtor is the sole and lawful owner of the Lease and Equipment,  has
good and  marketable  title to the  Lease and  Equipment,  free and clear of any
security interests, liens, and other encumbrances and rights, except as provided
for in this Security  Agreement,  and has the sole right and lawful authority to
grant  to  Secured  Party  the  security  interest  described  in this  Security
Agreement; and

        (j) The  Collateral  is and will  remain  free and  clear of all  liens,
claims and  encumbrances of every kind,  nature and  description  except for the
lien of this Security Agreement.

        (k) With  respect  to each  Lease  pledged  hereunder:  (i) the Lease is
genuine  and  represents  a valid  obligation  of the lessee and any other party
(including,  but not  limited  to,  any  Guarantors)  named in any of the  Lease
documentation (each, a "Lease Party"); (ii) each Lease Party is bona fide and in
good  standing;  (iii) the Lease  documentation  delivered  by Debtor to Secured
Party  correctly  reflects the entire  agreement  between  Debtor and each Lease
Party with respect to the Lease;  (iv) Debtor has delivered to Secured Party all
originals  of the Lease  documentation,  except for those in the  possession  or
control of a Lease Party; (v) all names,  addresses,  amounts, dates, signatures
and other statements and facts contained in the Lease documentation are genuine,
true and  correct;  (vi) all  Lease  documentation  has  been  duly  authorized,
executed and  delivered by each Lease Party  thereto and  represents  the legal,
valid  and  binding  obligation  of such  Lease  Party,  enforceable  under  all
applicable laws against such Lease Party in accordance with its terms, except to
the extent that enforcement of remedies may be limited by applicable bankruptcy,
insolvency or similar laws; (vii) the Lease is not in default and is and will be
free from any  liens,  setoffs,  counterclaims  and any and all other  defenses;
(viii)  there are no claims  pending or  threatened  by any Lease Party  against
Debtor in connection with the Lease or otherwise;  (ix) the Lease  documentation
evidences a valid  reservation  of title to, or first lien on, the Equipment and
all other  property  that is the subject of the Lease that is effective  against
all  persons;  (x) Debtor has  properly  and timely  filed or recorded any Lease
documentation  or other  instruments  as may be  required  under all  applicable
filing and recording  statutes,  and has obtained all necessary  subordinations,
releases and/or  waivers,  to ensure that Debtor's lien or other interest in the
Equipment and all other property that is the subject of the Lease is and will be
superior to that of all other  persons;  (xi) Debtor has the right to assign the
Lease to Secured  Party and the  assignment  conveys  to Secured  Party good and
valid title, at law and in equity,  to the Lease,  free and clear of any and all
liens,  claims and encumbrances of any kind or nature whatsoever and (xii) as of
the date a Lease is assigned to Secured Party  hereunder,  (1) except April 1998
payment,  no  payment  due under the Lease was more than ten (IO) days past due,
(2) no  nonpayment  default  was in  existence  thereunder,  (3)  Debtor  has no
knowledge  that any Lease  Party is  asserting  or has any  basis to assert  any
defense,  setoff,  or counterclaim to its obligations  under any Lease Document,
(4) Debtor has not granted any  extensions or waivers under the Lease during the
period since the commencement date of the Lease, (5) the Lease complies with all
applicable  usury laws,  retail  installment  sales acts,  truth-in-lending  and
truth-in-leasing  laws  and  regulations  and  all  other  applicable  laws  and
regulations  and (6) no consent  of any Lease  Party is  required  for Lessor to
assign  or  grant a  security  interest  in,  as  applicable,  the  Lease or the
Equipment.




4.  CERTAIN  COVENANTS  OF  DEBTOR.  

        Debtor hereby covenants as follows:

                  (a) Debtor shall cooperate and do all acts deemed necessary or
advisable  by Secured  Party to  continue  in Secured  Party a  perfected  first
security interest in the Collateral, including without limitation the removal of
any liens, claims or encumbrances upon any of the Collateral,  the subordination
and waiver of any landlord or lessor rights to Secured  Party's  first  security
interest in the collateral and  subordination  of any rights of any mortgagee of
any real property where  Collateral is located to Secured Party's first security
interest  therein.  Debtor  agrees to make a good  faith  effort  to obtain  and
furnish to Secured Party landlord, lessor, and/or mortgagee waivers upon request
of and in form satisfactory to Secured Party.

                  (c) Debtor shall,  upon request of Secured  Party,  furnish to
Secured  Party such further  information,  execute and deliver to Secured  Party
such documents,  including without  limitation Uniform Commercial Code financing
statements,  and do such other acts and things, as Secured Party may at any time
reasonably  request  relating to the  perfection  or  protection of the security
interest  created by this Security  Agreement or for the purpose of carrying out
the intent of this Security Agreement.

        (d) All Leases and other Lease Documentation  delivered to Secured Party
hereunder  and  constituting  any or all of the  Collateral  shall be  originals
thereof  identified by the stamp or mark "Original" and all other  counterparts,
if any, shall be marked "Duplicate" or "Copy".






        (e) Debtor shall  promptly  notify Secured Party in writing in the event
of any  change in the name of Debtor or any  relocation  of its chief  executive
offices.  In addition,  Debtor shall promptly notify Secured Party in writing in
the event of any relocation of any of the Collateral;  provided,  however, in no
event shall any of the Collateral be removed from the continental United States.

         5.       EVENTS OF DEFAULT.

        Debtor shall be in default under this Security  Agreement and under each
obligation and liability  identified on any Collateral  Schedule hereto upon the
occurrence of any of the following "Event(s) of Default":

        (a) Debtor  fails to pay any  installment  or other amount due or coming
due under any of the Loan Documents within ten days after its due date;

         (b) Any attempt by Debtor, without the prior written consent of Secured
Party, to sell, rent, lease, mortgage,  grant a security interest in (other than
the  security  interest  granted  in favor of  Secured  Party  pursuant  to this
Security Agreement), or otherwise encumber or transfer any of the Collateral;

         (c) Debtor fails to procure, or maintain in effect at all times, any of
the  insurance on the  Collateral  in  accordance  with Section 7(b) of the this
Security Agreement;

         (d) Debtor breaches any of its other  obligations under any of the Loan
Documents  and fails to cure the same within  thirty days after  written  notice
thereof;

         (e) Any warranty,  representation or statement made by Debtor in any of
the Loan Documents or otherwise in connection with any of the Indebtedness shall
be false or misleading in any material respect;

         (f) Any dissolution,  termination of existence, insolvency, or business
failure of Debtor,  or if Debtor is a natural person,  any death or incompetency
of Debtor;

         (g) Any of the Collateral being subjected to, or being threatened with,
attachment, execution, levy, seizure or confiscation in any legal proceeding, or
the entry of any judgment  against,  or the assessment  and/or filing of any tax
lien against,  or the issuance of any writ of garnishment or attachment  against
any property of Debtor;

         (h)  The  appointment  of a  receiver  for  all or of any  part  of the
property  of Debtor,  the  assignment  for the  benefit of  creditors  by or the
commencement of any proceeding  under any bankruptcy or insolvency law by Debtor
or against  Debtor or any  guarantor  of  Debtor's  obligation  hereunder  or in
connection  with  the  Indebtedness  (and  such  involuntary  proceeding  is not
dismissed within thirty days of the filing thereof); or

         (j) Debtor fails to provide Secured Party with a Replacement,  Lease or
Leases, as the case may be, in compliance with Section 2(a) hereof within thirty
(30) days of the occurrence of any of the following events (i) any Lease pledged
hereunder  is declared in default or is otherwise  terminated  or (ii) any Lease
pledged hereunder is, in the judgment of Secured Party, likely to be declared in
default.

         6.       REMEDIES ON DEFAULT.

        Upon  the  occurrence  of  an  Event  of  Default  under  this  Security
Agreement,  the  Secured  Party,  at its  option,  may declare any or all of the
Indebtedness,  including without limitation the Notes, to be immediately due and
payable,  without demand or notice to Debtor or any guarantor of any obligations
of Debtor.  The  obligations  and  liabilities  accelerated  thereby  shall bear
interest at the lower of thirteen  percent  (13%) per annum or the maximum  rate
allowed by applicable law. Upon such declaration of default, Secured Party shall
have all of the  rights  and  remedies  of a Secured  Party  under  the  Uniform
Commercial Code, or under any other applicable law, including without limitation
the right to (i)  notify  any  account  debtor of Debtor or any  obligor  on any
instrument  which  constitutes  part of the  Collateral  to make  payment to the
Secured Party, (ii) with or without legal process,  enter any premises where the
Collateral may be and take  possession  and/or remove said  Collateral from said
premises,  (iii) sell the  Collateral  at public or private sale, in whole or in
part, and have the right to bid and purchase at said sale,  and/or (iv) lease or
otherwise dispose of all or part of the Collateral,  applying proceeds therefrom
to the obligations






then in default.  If requested by Secured Party,  Debtor shall promptly assemble
the  Collateral  and  make it  available  to  Secured  Party  at a  place  to be
designated  by Secured  Party which is  reasonably  convenient  to both parties.
Secured  Party may also  render  any or all of the  Collateral  unusable  at the
Debtor's  premises and may dispose of such  Collateral on such premises  without
liability  for  rent or  costs.  Proceeds  from  any  sale  or  lease  or  other
disposition shall be applied: first, to all costs of repossession,  storage, and
disposition including without limitation reasonable attorneys', appraisers', and
auctioneers' fees; second, to discharge the obligations then in default;  third,
to  discharge  any other  indebtedness  of Debtor to Secured  Party,  whether as
obligor, endorser, guarantor, surety or indemnitor; fourth, to expenses incurred
in paying or settling liens and claims against the  Collateral;  and lastly,  to
Debtor, if there exists any surplus.  Any notice which Secured Party is required
to give to Debtor under the Uniform Commercial Code of the time and place of any
public  sale  or the  time  after  which  any  private  sale or  other  intended
disposition  of the  Collateral  is to be made  shall be  deemed  to  constitute
reasonable  notice if such notice is mailed by registered  or certified  mail to
the last known address of Debtor at least five (5) days prior to such action.

        In the  event of the  breach of any  representations  or  warranties  of
Debtor  hereunder in connection  with any Lease, or in the event Debtor fails to
observe or perform any  covenants or  agreements to be observed and performed by
Debtor hereunder in connection with any Lease,  and the continuance  thereof for
fifteen (I 5) calendar days following  written notice thereof from Secured Party
to Debtor,  Secured  Party may demand  that  Debtor  prepay the Note  secured by
applicable  Lease and Equipment,  and Debtor agrees to make such prepayment upon
such demand and that Debtor will be liable for such payment upon demand. Secured
Party  agrees to reassign  such Lease and  related  Equipment  to Debtor  AS-IS,
WHERE-IS,  without recourse and to release Secured Party's security  interest in
the related Equipment upon receipt of such payment by Debtor.

         7.       COLLATERAL.

        (a) Debtor shall not, without the prior written consent of Secured Party
sell,  rent,  lease,  mortgage,  grant a security  interest  in (other  than the
security  interest granted to Secured Party hereunder) or otherwise  encumber or
transfer any of the  Collateral.  Debtor shall pay promptly  when due all taxes,
license fees,  assessments  and public and private charges levied or assessed on
any of the Collateral,  on the use thereof, or on this Security Agreement or any
of the other Loan Documents.  At its option,  Secured Party may discharge taxes,
liens,  security interests or other encumbrances at any time levied or placed on
the Collateral and may pay for the  maintenance,  insurance and  preservation of
the Collateral or to effect compliance with the terms of this Security Agreement
or any of the other Loan  Documents,  and  Debtor  agrees to  reimburse  Secured
Party, on demand, therefor.

         (b) Until the declaration of any default hereunder, Debtor shall remain
in possession of the Collateral  subject to any lessee's  rights under the Lease
or any Replacement  Lease. The Collateral shall at all times be held at Debtor's
risk,  and  Debtor  shall  keep it  insured  against  loss or damage by fire and
extended  coverage perils,  theft,  burglary and for any or all Collateral which
are  vehicles,  for risk of loss by  collision,  and where  requested by Secured
Party,  against other risks as required thereby,  for the full replacement value
thereof,  with  companies,  in amounts and under policies  acceptable to Secured
Party,  with losses  payable to Secured Party and Debtor as their  interests may
appear.  Debtor shall,  if Secured  Party so requires,  deliver to Secured Party
policies or  certificates  of insurance  evidencing  such coverage.  Each policy
shall provide for coverage to Secured  Party  regardless of the breach by Debtor
of any warranty or representation made therein and shall provide for thirty (30)
days  written  notice  to  Secured  Party  of  the   cancellation   or  material
modification thereof.

         (c) Debtor will, at all times,  keep  accurate and complete  records of
the  Collateral to the extent  permitted by the Lease,  and Secured Party or its
agents, successors and assigns will have the right to examine, inspect, and make
extracts from all of Debtor's  books and records  relating to the  Collateral at
any time.

         8.       MISCELLANEOUS.

        (a) Secured Party's rights and remedies  hereunder or otherwise  arising
are cumulative and may be exercised singularly or concurrently.

        Neither the  failure  nor any delay on the part of the Secured  Party to
exercise  any right,  power or  privilege  hereunder  shall  operate as a waiver
thereof,  nor shall any  single  or  partial  exercise  of any  right,  power or
privilege  preclude any other or further exercise thereof or the exercise of any
other right, power or privilege.

        (b)  Secured  Party shall not be deemed to have waived any of its rights
hereunder,  or under any other  agreement,  instrument or paper signed by Debtor
unless  such  waiver be in  waiting  and signed by  Secured  Party.  No delay or
omission on the part of Secured Party in exercising any right shall operate as a
waiver of such right or any other right.  A waiver on any one occasion shall not
be  construed  as a bar to or  waiver  of any  right  or  remedy  on any  future
occasion.  Secured  Party may correct  patent errors  herein.  All notices to be
given in connection  with this Security  Agreement shall be in writing and shall
be sufficiently given if sent by first-class mail, postage prepaid, or delivered
in hand, to the appropriate party at its address set forth  hereinabove  (unless
and until a different  address may be specified in a written notice to the other
party).

        (c) Time is of the essence  hereof.  This  Security  Agreement  shall be
binding,  jointly and severally,  upon all parties described as the "Debtor" and
their respective heirs, executors, representatives,  successors and assigns, and
shall inure to the benefit of Secured Party, its successors and assigns.  If any
provision of this Security  Agreement is in conflict  with any statute,  rule of
law applicable hereto,  then such provision shall be deemed null and void to the
extent  that it may  conflict  therewith,  but  without  invalidating  any other
provision(s)  hereof. This Security Agreement shall not be changed or terminated
orally,  but only by a writing  signed by both  parties  hereto.  This  Security
Agreement,  any Note and/or any of the other Loan  Documents  may be assigned by
Secured  Party without  notice to Debtor,  and Debtor hereby waives any defense,
counterclaim or  cross-complaint  by Debtor against any assignee,  agreeing that
Secured Party shall be solely responsible therefor.

        (d) Debtor  hereby  grants to Secured  Party the power to sign  Debtor's
name and  generally to act on behalf of Debtor to execute and file  applications
for title, transfers of title,  financing statements,  notices of lien and other
documents  pertaining  to any or all of the  Collateral.  Debtor  shall,  if any
certificate of title be required or permitted by law for any of the  Collateral,
obtain such  certificate  showing the lien hereof with respect to the Collateral
and promptly deliver same to Secured Party. Debtor shall do everything necessary
or expedient to preserve or perfect the lien and perfected  security interest of
Secured Party granted hereunder. Debtor waives, to the greatest extent permitted
by law, the benefit of all homestead and other property  exemption  laws. In the
event this Security  Agreement,  any Note or any other Loan Documents are placed
in the hands of an attorney for  collection  of money due or to become due or to
obtain performance of any provision hereof,  Debtor agrees to pay all reasonable
attorneys'  fees incurred by Secured  Party,  and further agrees that payment of
such fees is secured hereunder.

        (e) Upon request,  if so available,  Debtor agrees to furnish its annual
financial  statements  in  form  Satisfactory  to  Secured  Party.  Any  and all
financial  statements  submitted  and to be submitted to Secured  Party have and
will have been prepared on a basis of generally accepted accounting  principles,
and are and will be complete and correct and fairly present  Debtor's  financial
condition  as at the date  thereof.  Secured  Party may at any  reasonable  time
examine the books and records of Debtor and make copies thereof.

         (f) This Security  Agreement  shall be governed by and construed  under
the substantive  laws of the State of New York,  without regard to choice of law
principles  thereof,  and any  provision  of this  Security  Agreement or of the
obligations and liabilities  secured by this Security  Agreement which may prove
to be unenforceable  shall not affect the validity of any other provision of the
Security Agreement.

         (g) This Security Agreement shall continue in full force and effect for
so long as there shall  remain in  existence  obligations  or  liabilities  from
Debtor to  Secured  Party and for so long after the  payment of all  outstanding
obligations and liabilities as it is reasonably  contemplated  that there may be
future  obligations  and  liabilities  between Debtor and Secured  Party,  which
future  obligations  and liabilities  shall be secured by the security  interest
granted in this Security Agreement.

         (h) Secured Party hereby acknowledges that the Leases pledged hereunder
grant  certain  rights of quiet  enjoyment  to the  lessees  under such  Leases.
Secured  Party hereby  agrees that,  so long as no Event of Default has occurred
under the Lease,  it will not  disturb any such  lessee's  quiet,  peaceful  and
uninterrupted  possession  of the  Collateral  that is the  subject  of any such
Lease.

        (i) THE PARTIES TO THIS SECURITY AGREEMENT HEREBY  UNCONDITIONALLY WAIVE
THEIR RESPECTIVE RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED






UPON OR ARISING OUT OF, DIRECTLY OR INDIRECTLY,  THIS SECURITY AGREEMENT, ANY OF
THE RELATED DOCUMENTS,  ANY DEALINGS BETWEEN THEM RELATING TO THE SUBJECT MATTER
OF THIS TRANSACTION OR ANY RELATED TRANSACTIONS, AND/OR THE RELATIONSHIP THAT IS
BEING  ESTABLISHED  BETWEEN THEM. The scope of this waiver is intended to be all
encompassing of any and all disputes that may be filed in any court  (including,
without limitation, contract claims, tort claims, breach of duty claims, and all
other common law and statutory claims).  THIS WAIVER IS IRREVOCABLE MEANING THAT
IT MAY NOT BE MODIFIED  EITHER ORALLY OR IN WRITING,  AND THE WAIVER SHALL APPLY
TO ANY SUBSEQUENT  AMENDMENTS,  RENEWALS,  SUPPLEMENTS OR  MODIFICATIONS TO THIS
SECURITY  AGREEMENT  ANY  RELATED  DOCUMENTS,  OR  TO  ANY  OTHER  DOCUMENTS  OR
AGREEMENTS RELATING TO THIS TRANSACTION OR ANY RELATED TRANSACTION. In the event
of litigation,  this  Agreement may be filed as a written  consent to a trial by
the court.

        IN WITNESS  WHEREOF,  Debtor and Secured Party,  intending to be legally
bound  hereby,  have  duly  executed  this  Security  Agreement  in one or  more
counterparts, each of which shall be deemed to be an original, as of the day and
year first aforesaid.

SECURED PARTY:                            DEBTOR:
GENERAL ELECTRIC CAPITAL CORPORATION      AMERICAN FINANCE GROUP, INC.

By:  /s/ James Trinacria                  By: /s/ Donald R. Dugan
       ------------------------               --------------------------
       James Trinacria                        Donald R. Dugan

Title: Senior Risk Analyst                    Title:  President








                            COLLATERAL SCHEDULE NO. I

        THIS  COLLATERAL  SCHEDULE  NO. 1 is  annexed to and made a part of that
certain Pledge and Security  Agreement  dated as of June 30, 1998 (the "Security
Agreement")  between  General  Electric  Capital  Corporation  as secured  party
("Secured  Party") and American  Finance Group,  Inc., as debtor  ("Debtor") and
describes the  collateral  in which Debtor has granted  Secured Party a security
interest  in  connection  with the  Indebtedness  (as  defined  in the  Security
Agreement)  including without limitation that certain Promissory Note dated June
30, 1998 in the original principal amount of $1,118,010.14.


  The  inventory  of Debtor  consisting  of the  equipment  listed on  Equipment
Schedule nos. 10 (all attachments,  replacements and  substitutions  thereof) to
the Lease Agreement dated February 19,1998 by and between Debtor, as Lessor, and
Oxford Health Plans,  Inc., as Lessee  ("Lessee"),  copies of which are attached
hereto and made a part hereof. In addition,  Debtor hereby assigns and grants to
Secured Party a security  interest in the above  described  Lease  Agreement and
Equipment Schedule Nos. 10 thereto.





SECURED PARTY:                             DEBTOR:
GENERAL ELECTRIC CAPITAL CORPORATION       AMERICAN FINANCE GROUP, INC.

By:  /s/ James Trinacria                   By: /s/ Donald R. Dugan
      --------------------------               -------------------------
      James Trinacria                          Donald R. Dugan

Title: Senior Risk Analyst                 Title: President

Date:  6/30/98                             Date: 26 June 1998







                                 PROMISSORY NOTE

                                  June 30, 1998
                                     (Date)


                       24 SCHOOL STREET, BOSTON, MA 02108
                               (Address of Maker)

FOR VALUE RECEIVED,  AMERICAN FINANCE GROUP, INC.,  ("Maker") promises,  jointly
and severally if more than one, to pay to the order of General  Electric Capital
Corporation  or any  subsequent  holderhereof  (each,  a "Payee")  at its office
located at 44 0ld  Ridgebury  Road,  Danbury,  CT 06811orat  such other place as
Payee or the holder hereof may  designate,  the principal sum of one million one
hundred eighteen thousand ten and 14/100 dollars ($1,118,010.14),  with interest
thereon,  from the date hereof through and including the dates of payment,  at a
fixed interest rate of nine and 26/100 percent  (9.26%) per annum, to be paid in
lawful  money of the  United  States,  in thirty  two (32)  consecutive  monthly
installments  of  principal  and interest of thirty nine  thousand  five hundred
seventy two and 81/100  ($39,572.81)  each ("Periodic  Installment") and a final
installment which shall be in the amount of the total outstanding  principal and
interest.  The first Periodic  Installment shall be due and payable on August 1,
1998 and the following Periodic  Installments and the final installment shall be
due and  payable  on the same day of each  succeeding  month  (each,  a "Payment
Date"). Such installments have been calculated on the basis of a 360 day year of
twelve  30-day  months.  Each  payment  may,  at the  option  of the  Payee,  be
calculated  and applied on an assumption  that such payment would be made on its
due date.

The acceptance by Payee of any payment which is less than payment in full of all
amounts  due and owing at such time  shall not  constitute  a waiver of  Payee's
right to  receive  payment  in full at such time or at any  prior or  subsequent
time.

Maker hereby expressly authorizes the Payee to insert the date value is actually
given in the  blank  space  on the  face  hereof  and on all  related  documents
pertaining hereto.

This Note may be secured  by a  security  agreement,  chattel  mortgage,  pledge
agreement or like  instrument  (each of which is hereinafter  called a "Security
Agreement")

Maker  shall be  liable to repay  this  Note in the  event of any  breach of any
representation or warranty given by Maker to Payee under any Security Agreement,
however to the extent  that any  payments to be made by Maker under this Note or
any Security Agreement not related to a breach of any representation or warranty
given by Maker to Payee under any Security Agreement, Payee shall look solely to
the income and proceeds  available under the Collateral (as that term is defined
in the Security Agreement) for the performance of Maker's duties and obligations
hereunder or under any Security  Agreement and except as  specifically  provided
for in the paragraph,  Maker shall not be otherwise  personally  liable to Payee
hereunder.

Time is of the essence  hereof.  If any  installment  or any other sum due under
this Note or any Security  Agreement is not received  within ten (10) days after
its due date.  If (i) Maker  fails to make  payment of any amount due  hereunder
within ten (10) days after the same becomes due and payable; or (ii) Maker is in
default under, or fails to perform under any term or condition  contained in any
Security  Agreement,  then the entire principal sum remaining  unpaid,  together
with all accrued  interest  thereon and any other sum payable under this Note or
any Security  Agreement,  at the election of Payee, shall immediately become due
and payable,  with interest thereon at the lesser of thirteen percent (I 3%) per
annum or the highest rate not prohibited by applicable law from the date of such
accelerated maturity until paid (both before and after any judgment).

Maker may prepay in full,  but not in part,  its entire  indebtedness  hereunder
upon  payment  of  an  additional  sum  as a  premium  equal  to  the  following
percentages of the original principal balance for the indicated period:






Prior to the first annual anniversary date of this Note: three percent (3%)
Prior to the second annual anniversary date of this Note: two percent (2%)
Prior to the third annual  anniversary  date of this Note:  one percent (I%) and
zero percent  (O%)  thereafter,  plus all other sums due  hereunder or under any
Security Agreement.

It is the intention of the parties  hereto to comply with the  applicable  usury
laws;  accordingly,  it is agreed  that,  notwithstanding  any  provision to the
contrary in this Note or any Security Agreement,  in no event shall this Note or
any Security  Agreement require the payment or permit the collection of interest
in excess of the maximum amount  permitted by applicable law. If any such excess
interest is contracted for,  charged or received under this Note or any Security
Agreement,  or if all of the principal  balance shall be prepaid,  so that under
any of such  circumstances  the amount of interest  contracted  for,  charged or
received  under this Note or any  Security  Agreement on the  principal  balance
shall exceed the maximum amount of interest permitted by applicable law, then in
such event (a) the  provisions of this paragraph  shall govern and control,  (b)
neither  Maker nor any other  person or entity now or  hereafter  liable for the
payment  hereof  shall be  obligated  to pay the amount of such  interest to the
extent  that it is in excess of the  maximum  amount of  interest  permitted  by
applicable  law,  (c) any such  excess  which may have been  collected  shall be
either applied as a credit against the then unpaid principal balance or refunded
to Maker,  at the option of the Payee,  and (d) the  effective  rate of interest
shall be automatically reduced to the maximum lawful contract rate allowed under
applicable law as now or hereafter  construed by the courts having  jurisdiction
thereof.  It is further  agreed that without  limitation of the  foregoing,  all
calculations of the rate of interest  contracted for,  charged or received under
this  Note  or any  Security  Agreement  which  are  made  for  the  purpose  of
determining whether such rate exceeds the maximum lawful contract rate, shall be
made,  to the extent  permitted by  applicable  law, by  amortizing,  prorating,
allocating  and  spreading  in equal parts  during the period of the full stated
term of the indebtedness  evidenced hereby,  all interest at any time contracted
for,  charged or received  from Maker or otherwise by Payee in  connection  with
such  indebtedness;  provided,  however,  that if any  applicable  state  law is
amended or the law of the United States of America preempts any applicable state
law, so that it becomes  lawful for the Payee to receive a greater  interest per
annum rate than is presently  allowed,  Maker agrees that, on the effective date
of such  amendment  or  preemption,  as the  case  may be,  the  lawful  maximum
hereunder  shall be increased to the maximum  interest per annum rate allowed by
the amended state law or the law of the United States of America.

Maker and all sureties,  endorsers,  guarantors or any others (each such person,
other  than  Maker,  an  "Obligor")  who may at any time  become  liable for the
payment hereof jointly and severally consent hereby to any and all extensions of
time,  renewals,  waivers or modifications of, and all substitutions or releases
of, security or of any party primarily or secondarily liable on this Note or any
Security  Agreement  or any term and  provision  of  either,  which may be made,
granted  or  consented  to by Payee,  and agree  that  suit may be  brought  and
maintained  against any one or more of them,  at the  election of Payee  without
joinder of any other as a party  thereto,  and that Payee  shall not be required
first to foreclose,  proceed against, or exhaust any security hereof in order to
enforce payment of this Note. Maker and each Obligor hereby waives  presentment,
demand for payment, notice of nonpayment,  protest, notice of protest, notice of
dishonor,  and all other  notices in connection  herewith,  as well as filing of
suit (if permitted by law) and  diligence in  collecting  this Note or enforcing
any of the security hereof, and agrees to pay (if permitted by law) all expenses
incurred in collection, including Payee's actual attorneys' fees. Maker and each
Obligor  agrees  that fees not in excess of twenty  percent  (20%) of the amount
then due shall be deemed reasonable.

THE MAKER HEREBY  UNCONDITIONALLY WAIVES ITS RIGHTS TO A JURY TRIAL OF ANY CLAIM
OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF,  DIRECTLY OR  INDIRECTLY,  THIS
NOTE,  ANY OF THE  RELATED  DOCUMENTS,  ANY  DEALINGS  BETWEEN  MAKER  AND PAYEE
RELATING TO THE SUBJECT MATTER OF THIS TRANSACTION OR ANY RELATED  TRANSACTIONS,
AND/OR THE RELATIONSHIP THAT IS BEING  ESTABLISHED  BETWEEN MAKER AND PAYEE. THE
SCOPE OF THIS WAIVER IS INTENDED TO BE ALL  ENCOMPASSING OF ANY AND ALL DISPUTES
THAT MAY BE FILED IN ANY COURT (INCLUDING, WITHOUT LIMITATION,  CONTRACT CLAIMS,
TORT  CLAIMS,  BREACH OF DUTY  CLAIMS,  AND ALL OTHER  COMMON LAW AND  STATUTORY
CLAIMS.) THIS WAIVER IS IRREVOCABLE  MEANING THAT IT MAY NOT BE MODIFIED  EITHER
ORALLY OR IN WRITING, AND THE WAIVER SHALL APPLY TO ANY SUBSEQUENT AMENDMENTS,






RENEWALS,  SUPPLEMENTS OR MODIFICATIONS TO THIS NOTE, ANY RELATED DOCUMENTS,  OR
TO ANY OTHER DOCUMENTS OR AGREEMENTS RELATING TO THIS TRANSACTION OR ANY RELATED
TRANSACTION.  IN THE  EVENT OF  LITIGATION,  THIS NOTE MAY BE FILED AS A WRITTEN
CONSENT TO A TRIAL BY THE COURT.

This Note and any Security  Agreement  constitute the entire  agreement of Maker
and Payee with respect to the subject  matter  hereof and  supercedes  all prior
understandings, agreements and representations, express or implied.

No  variation  or  modification  of  this  Note,  or  any  waiver  of any of its
provisions  or  conditions,  shall be valid  unless in writing  and signed by an
authorized  representative  of  Maker  and  Payee.  Any  such  waiver,  consent,
modification or change shall be effective only in the specific  instance and for
the specific purpose given.

Any provision in this Note or any Security  Agreement  which is in conflict with
any statute, law or applicable rule shall be deemed omitted, modified or altered
to conform thereto.

                                     AMERICAN FINANCE GROUP, INC.

                                     BY: /s/ Donald R. Dugan         (L.S.)
                                         -------------------------------
/s/ Jason M. Howard                      (Signature)
- ---------------------------------
(Witness)
Jason M. Howard                      Donald R. Dugan, President

(Print name)                         Print name (and title, if applicable)

Account Manager, AFG                 94-3226128

(Address)                            (Federal tax identification number)