September 30, 1998

Rampart Capital Corporation, et al.
700 Louisiana, Suite 2540
Houston, Texas 77002

Re: SIXTH AMENDMENT TO LOAN AGREEMENT  (Sixth  Amendment)  dated as of September
30,  1998 by and  between  Southwest  Bank of Texas  N.A.  and  Rampart  Capital
Corporation, et. al

Gentlemen:

This Sixth  Amendment  is made and  entered  into as of the date  above  between
SOUTHWEST  BANK OF TEXAS N.A.  ("Bank")  and  Borrower(hereinafter  defined)  to
evidence the parties' agreement to modify and amend the existing Loan Agreement,
as last  amended  by Fifth  Amendment  to Loan  Agreement  dated on May 1,  1998
effective as of January 1, 1998 (all capitalized  terms which are defined in the
Loan Agreement shall have the same meaning  herein,  unless  expressly  modified
hereby).

Borrower  has  requested  that the Loan  Agreement  be modified and the Bank has
agreed to such  modifications  upon the terms set forth herein.  For  sufficient
consideration,  the parties  hereby agree that the Loan Agreement is modified to
the extent  required to accomplish the intent of the specific  modifications  of
this Sixth Amendment.

The term "Borrower" is hereby defined to include the following entities, jointly
and severally, Rampart Capital Corporation, a Texas corporation ("RCC"); Rampart
Facilities  Corporation,  a Texas  corporation;  Rampart  Ventures  Corporation,
L.L.C., a Texas limited liability company; Rampart Acquisition  Corporation,  L.
L. C., a Texas limited liability  company;  Rampart  Properties  Corporation,  a
Nevada  corporation;  IGBAF,  inc.,  a Texas  corporation;  IGBF,  inc., a Texas
corporation; Ag Capital Corporation, an Oklahoma corporation;  Leissner's, Inc.,
a Texas corporation;  and BCL Enterprises,  inc. a Texas corporation;  provided,
however,  (i) as to filings with the Bank and  compliance  issues under the Loan
Agreement,  RCC shall  remain  the  entity  primarily  responsible  for all such
matters  unless  otherwise  agreed to in writing by the Bank,  and (ii)  without
further  approval by the Bank,  IGBP,  inc.  and Ag Capital  Corporation  may be
consolidated  into IGBAF,  inc. Other  subsidiaries  of RCC maybe converted into
limited liability  companies without further approval from the Bank, as along as
the transaction does not affect the Bank's lien position on the collateral.



This Sixth Amendment modifies the Loan Agreement to accomplish the following:

          1. Borrower  hereby agrees that the Bank may designate an  independent
     party to perform a collateral  field audit of Borrower's  assets to be done
     at the  expense of  Borrower  butnot to exceed  $2,000.  The audit shall be
     completed by April 30, 1999 and annually thereafter.  The Bank shall define
     the scope of such audit which will include,  at a minimum,  a review of the
     status of property  taxes,  the  existence of tax liens and the adequacy of
     insurance coverage for all Eligible Class A Note Receivable, Eligible Class
     B Notes Receivable,  Eligible Class C Notes Receivable, Status F Foreclosed
     Real Estate and Status G Foreclosed Real Estate.

          2. The term "Note" shall be that certain  promissory note of even date
     herewith from Borrower to the Bank in the face amount of $5,000,000 due and
     payable on or before December 31, 1999.

          3. The term "Guaranty" or "Guaranties" shall refer individually to the
     respective  Guaranty  Agreements of Charles W. Janke,  James H.  Carpenter,
     Janke Family Partnership, Ltd., J. H. Carpenter Family Partnership Ltd. and
     In source Financial  Corporation,  a Texas corporation or severally to more
     than one such Guaranty.

          4. The term  "Eligible  Class F & I Assets"  shall mean  Eligible  REO
     classified  by Borrower  as "Status  F-Foreclosed  R/E - Major  Assets" and
     "Status I-Investment and Commercial Real Estate" as defined by Borrower.

          5.  The  Borrower  will  not  permit  its  tangible  net  worth  (on a
     consolidated  basis) to be less than  $2,800,000 at any time after December
     31,  1998.  As used  herein,  "tangible  net  worth"  shall mean the sum of
     preferred  stock (if any), par value of common stock,  capital in excess of
     par value of common stock,  and retained  earnings less treasury  stock (if
     any),  less good  will,  cost in excess of net  assets  acquired,  deferred
     development  costs  and all  other  assets as are  properly  classified  as
     intangible assets.

          6. The  Borrower  shall  maintain on a  consolidated  basis a ratio of
     Total  Liabilities to Tangible Net Worth not exceeding  2.00:1.00.  As used
     "total  Liabilities  "means the sum of current  liabilities  plus long term
     liabilities, excluding any deferred income taxes.

          7.  Borrower  has  requested  and the Bank has agreed to  release  the
     principal  amount of $1,200,000 of that certain  $1,700,000  Certificate of
     Deposit No.  25850 in the name of Janke  Family  Partnership,  Ltd. so that
     only the remaining  $500,000 of the certificate of deposit shall secure the
     Loan.

          8.  Borrower  shall pay to the Bank a facilities  availability  fee of
     THIRTY-THREE THOUSAND SEVEN HUNDRED FIFTY DOLLARS ($33,750.00).

          9.  Borrower  shall  provide  the  Bank  with  instruments  reasonably
     required by the Bank to evidence  the  extension  of all liens and security
     interests in favor of the Bank securing the Loan.

To the  extent  that the  terms and  provisions  of the Loan  Agreement  require
modification to accomplish the specific terms set forth above, the parties agree
that they shall  cooperate to permit advances upon the terms set forth above. To
the extent that the Bank,  in its  reasonable  opinion,  does not have  adequate
information to make an Advance based upon this Sixth  Amendment,  the Bank shall
not be  required  to make  an  advance  as to that  item  or  items  until  such
information  is  provided to the Bank in form  required by the Bank.  To further
update and  consolidate  the  reporting  and  covenants of Borrower set forth in
paragraphs 13 and 14 of the Loan Agreement,  such  paragraphs,  as amended,  are
attached hereto as Schedule 1 and made a part hereof for all purposes.

The  representations  and warranties of Borrower contained in the Loan Agreement
and the other Security instruments and otherwise made in writing by or on behalf
of  the  Borrower  pursuant  to  the  Loan  Agreement  and  the  other  Security
instruments  were true and  correct  when made,  and are true and correct in all
material  respects at and as of the time of  delivery  of this Sixth  Amendment,
except for such changes in the facts  represented and warranted which are not in
violation of the Loan  Agreement,  this Sixth  Amendment  or the other  Security
instruments  and those  matters  which were not in  compliance  and the Bank was
notified of same and as to those  exceptions (but not to any future  exceptions)
which  the Bank  approved  as  exceptions  to the Loan  Agreement  requirements.
Previous items of non-compliance were approved and accepted by the Bank.

Borrower has  performed  and complied with all Loan  Agreements  and  conditions
contained  in the Loan  Agreement  and the Security  instruments  required to be
performed  or complied  with by Borrower  prior to or at the time of delivery of
this Sixth Amendment.

There exists,  and after giving effect to this Sixth  Amendment  will exist,  no
default or Event of Default, or any condition, or act which constitutes, or with
notice or lapse of time (or both) would constitute an Event of Default under any
loan agreement,  note  agreement,  or trust indenture to which the Borrower is a
party,  including  without  limitation,  the Loan  Agreement,  the Notes and the
Security instruments, to the knowledge of the parties hereto.

Nothing in this Sixth Amendment is intended to amend any of the  representations
or warranties contained in the Loan Agreement.

Borrower  represents  that  this is a  commercial,  business  and/or  investment
transaction and that the proceeds of the Notes have not and will not be used for
personal,  family,  household or residential purposes; that all disclosures,  if
any,  required  by law have been  received by  Borrower  prior to the  execution
hereof; and requests that Bank rely upon this  representation,  and the Bank has
relied upon the representations and warranties contained in this Sixth Amendment
in agreeing to the  amendments  and  supplements to the Loan Agreement set forth
herein.

Except as otherwise expressly provided herein, the Loan Agreement,  the Security
Instruments,  the Notes and the other  instruments  and  agreements  referred to
therein are not amended, modified or affected by this Sixth Amendment. Except as
expressly  set  forth  herein,   all  of  the  terms,   conditions,   covenants,
representations,  warranties and all other  provisions of the Loan Agreement are
herein ratified and confirmed and shall remain in full force and effect.

On and after the date on which  this  Sixth  Amendment  becomes  effective,  the
terms, "this Loan Agreement,"  "hereof," "herein," "hereunder" and terms of like
import,  when  used  herein or in the Loan  Agreement  shall,  except  where the
context  otherwise  requires,  refer to the Loan  Agreement,  as amended by this
Sixth Amendment.

This Sixth Amendment may be executed in two or more  counterparts,  and it shall
not be necessary  that the  signatures of all parties hereto be contained on any
one counterpart hereof; each counterpart shall be deemed an original, but all of
which together shall constitute one and the same instrument.

It is understood between the parties hereto that Borrower shall provide Bank, at
Borrower's expense, all other reports, further agreements and instruments, title
policies,  surveys,  and other documentation as reasonably  requested during the
term of the Notes,  so as to  preserve,  protect and  perfect,  or maintain  the
perfection,  of all liens  created by the  instruments  securing  payment of the
Notes or other required  documentation so that Bank shall have all documentation
necessary to comply with Bank's internal lending policies and that documentation
required by any applicable regulatory agency/authority.

All  notices to  Borrower  shall be sent to the  address  set forth  above.  All
notices to Guarantors or any other liable  parties shall be given to them at the
Borrower's address and also to the last home address in the files of the Bank.

Borrower and Bank agree that without the written consent of Charles W. Janke and
James H.  Carpenter,  the Borrower  may not  increase the maximum  amount of the
Loan.

The Bank  acknowledges  and  conditionally  consents (such consent is subject to
review of actual documents  submitted to the Bank at which time the Bank's final
consent will not be unreasonably  withheld or delayed) to the fact that Borrower
and one or more  Guarantors  are entering  into (a)  indemnity  Agreements  with
respect to the Loan and Guaranties,  (b) Stock Pledge Agreements with respect to
collateral for the indemnity Agreements, (c) Security Agreements with respect to
collateral  for the  Indemnity  Agreements,  (d) By Law  Modifications,  and (e)
Shareholder Buy/Sell  Agreements;  all of which will potentially result in (i) a
change  in  ownership  percentages  of  Borrower,  (ii)  one or more  Guarantors
purchasing  (after an event of default  which is not timely  cured) the Loan and
all collateral  related  thereto upon the terms provided in the Loan  Documents,
and (3) related  undertakings.  Bank agrees that the  existence and substance of
the above  documents (now or those  documents  consented to in the future by the
Bank) and  arrangement do not create a default under any document  pertaining to
the Loan.

The Bank hereby  confirms  that the Bank has returned the Guaranty  Agreement of
Kyra Janke given in connection with the original transaction involving this Loan
and that Kyra Janke is no longer a Guarantor of this Loan.

NOTICE TO OBLIGERS:  THIS DOCUMENT AND ALL OTHER DOCUMENTS RELATING TO THIS LOAN
CONSTITUTE A WRITTEN LOAN AGREEMENT WHICH REPRESENTS THE FINAL AGREEMENT BETWEEN
THE PARTIES AND MAY NOT BE CONTRADICTED  BY EVIDENCE OF PRIOR,  CONTEMPORANEOUS,
OR SUBSEQUENT ORAL AGREEMENTS  BETWEEN THE PARTIES.  THERE ARE NO UNWRITTEN ORAL
AGREEMENTS  BETWEEN THE PARTIES TO THIS LOAN.  THE TERM  "PARTIES"  INCLUDES THE
UNDERSIGNED  PERSONS AND ENTITIES.  THE TERM "LOAN"  INCLUDES THIS AGREEMENT AND
THE DOCUMENTS REFERENCED HEREIN.

IN WITNESS  WHEREOF,  the parties hereto have caused this Sixth  Amendment to be
executed on the date first set forth above but in all  respects  effective as of
September 30, 1998.

BORROWER:

                                       RAMPART CAPITAL CORPORATION
 
                                       BY: /S/ Charles  W. Janke   
                                       Charles  W. Janke
                                       President


                                       RAMPART FACILITIES CORPORATION

 
                                        BY:  /S/ Charles  W. Janke
                                        Charles  W. Janke, President


                                       RAMPART VENTURES CORPORATION, L.L.C.,


                                       BY /S/   Charles W. Janke
                                       Charles W. Janke, Managing Member

                                       RAMPART ACQUISITION CORPORATION, L.L.C.

                                        BY:  /S/ Charles W. Janke
                                        Charles W. Janke, Managing Member

                                        RAMPART PROPERTIES CORPORATION


                                         BY:  /S/   Charles  W. Janke
                                         Charles  W. Janke, President

                                         IGBAF, INC.

                                         BY:   /S/ Charles  W. Janke
                                         Charles  W. Janke, President

                                         IGBF, INC.

                                         BY:   /S/ Charles  W. Janke
                                         Charles  W. Janke, President

                                         AG CAPITAL CORPORATION

                                         BY:   /S/ Charles  W. Janke
                                         Charles  W. Janke, President


                                          LEISSNER'S INC.


                                          BY:   /S/Charles  W. Janke
                                          Charles  W. Janke, President


                                          BCL ENTERPRISES. INC.

                                          BY:    /S/Charles  W. Janke
                                          Charles  W. Janke, President

BANK:
                                          SOUTHWEST BANK OF TEXAS N.A.


                                           BY:  /S/Charles  W. Janke
                                           Michael R. Adams, Vice President


ATTACHMENT: SCHEDULE I - Paragraphs 13 and 14 of the Loan Agreement


                                   SCHEDULE I
                      to Sixth Amendment to Loan Agreement

Restatement of Paragraphs 13 and 14 (after Sixth Amendment):

13.  Without  request  by  Bank,  Borrower  agrees  to  furnish,  or cause to be
furnished,  Bank with true,  correct and  complete  copies of the  following  as
indicated,  until the Notes are paid in full and the Bank's  commitment  to lend
under the Line of Credit Note is terminated:

a.   promptly after becoming  available and in any event within thirty (30) days
     after the end of each month,  Borrower's financial statements in comparable
     form as  previously  furnished  to Bank,  consisting  of at  least  (i) the
     balance  sheet of  Borrower  as of the end of such year  prepared on a cost
     basis,  (ii) the  statement  of profit and loss of  Borrower  for such year
     prepared on a cash basis,  and (iii) the  statement  of  reconciliation  of
     capital  accounts of Borrower  for such year;  certified  by the  principal
     financial  officer of Borrower  to be true and  correct and fairly  reflect
     Borrower's financial condition and operations;

b    within  thirty  (30) days after the filing of same,  copies of the  federal
     income tax return of Borrower;

c.   as soon as available and in any event within thirty (30) days after the end
     of each calendar month, a Borrowing Base Certificate,  substantially in the
     form as  previously  approved  by the Bank,  calculating  the amount of the
     Borrowing Base;

d.   as soon as available and in any event within thirty (30) days after the end
     of each  calendar  month,  a full and complete  list of all Eligible  Notes
     Receivable  and all liens  securing  same which are owned by  Borrower  and
     pledged to Bank under any of the Collateral Assignments; such list shall be
     in the form and  containing  information  of a type and scope as  currently
     delivered to Bank in connection with the Prior Collateral Assignment unless
     and until Bank requests additional information;

e.   such other  information  regarding  the business and affairs and  financial
     condition of Borrower, and the Guarantors, as Bank may reasonably request;

f.   a monthly  officer's  certificate  of Borrower  that  Borrower has paid and
     discharged  all  taxes,  assessments  and  governmental  charges  or levies
     imposed on Borrower  or on its income or profits or on any of its  property
     prior to the date on which  penalties  or liens attach  thereto;  provided,
     however,  Borrower shall not be required to pay any. such tax,  assessment,
     charge, levy or claim the payment of which is being contested in good faith
     and  by  proper  proceedings;   provided  further,   however,  the  parties
     acknowledge and agree that it is Borrower's  customary  practice not to pay
     real property taxes on its real estate  interests  unless the failure to do
     so would  have an  immediate  and  material  adverse  effect on  Borrower's
     ability to continue its operations;




g.   Prompt notice of all litigation and all proceedings before any governmental
     or regulatory  agencies against Borrower,  except litigation or proceedings
     not materially adversely affecting the financial condition of Borrower;

h.   Prompt notice of all litigation and all proceedings before any governmental
     or  regulatory  agencies  against  any  Guarantor,   except  litigation  or
     proceedings not materially  adversely  affecting the financial condition of
     such Guarantor; and

i.   as soon as available and in any event within one hundred  twenty (120) days
     after December 31, 1996, and all calendar years  thereafter,  the financial
     statements  listed in Paragraph 1 3(a) as of the end of such  calendar year
     audited by a Certified Public Accountant or Firm approved by the Bank.

14.  Borrower will not permit any material change to be made in the character of
its business as carried on at the date hereof;

a.   Borrower shall furnish  executed Deeds of Trust on any property  covered by
     the Collateral  Assignments to which Borrower  obtains title promptly after
     taking such action,  such that upon  recording of such Deed of Trust,  Bank
     will have a first priority lien;  provided,  however,  this provision shall
     apply only to  foreclosure  (or deed in lieu  thereof)  against  properties
     which  secure  any  Eligible  Note  Receivable  to  which  Borrower  has an
     allocated cost of over $100,000.00;

b.   Borrower  agrees that 100% of the Net Purchase  Price  received by Borrower
     from the sale, compromise or settlement of any Eligible Note Receivable and
     Eligible REO shall be applied to the payment of the Notes;

c.   Borrower  shall  maintain,  or cause to be  maintained,  accurate books and
     records  pertaining to the Eligible  Notes  Receivable  in accordance  with
     generally  accepted  practices and procedures  Borrower  will,  upon Bank's
     request,  mark Borrower's ledger cards,  books of account and other records
     relating  to the  Eligible  Notes  Receivable  with  appropriate  notations
     satisfactory  to Bank,  disclosing  that  Borrower  has  granted  to Bank a
     security interest in the Eligible Notes Receivable or containing such other
     designations  as Bank  may  require.  All  such  records  shall  be kept at
     Borrower's address as it appears in this Loan Agreement;

d.   Borrower will,  promptly upon learning thereof,  report to Bank all matters
     materially affecting the value,  enforceability or collectability of any of
     the Eligible Notes  Receivable  such as claims or disputes  asserted by any
     maker as to the amount of  principal or interest  owing on such  promissory
     notes and/or the enforceability of the liens securing the payment thereof;

e.   Borrower  will  promptly  provide  Bank with notice of any event which will
     have an immediate and material adverse effect on the Borrower's  ability to
     conduct its business as presently conducted;




f.   Borrower shall continue to be a corporation duly  incorporated and existing
     in good  standing  under  the laws of the  State  of Texas or the  State of
     Oklahoma or the State of Nevada,  as  applicable,  and  continue to be duly
     licensed or qualified as a foreign corporation in all jurisdictions wherein
     the  character of the  property  owned or leased by it or the nature of the
     business  transacted by it makes licensing or qualification  necessary as a
     foreign corporation;

g.   Subsequent to Bank taking legal title to the Eligible  Notes  Receivable by
     commercially reasonable means in accordance with applicable law, Bank shall
     have the right to receive,  endorse,  assign and/or  deliver in the name of
     Bank or Borrower any and all checks,  drafts and other  instruments for the
     payment of money  relating to the Eligible Notes  Receivable,  and Borrower
     hereby  waives notice or  presentment,  protest and of  non-payment  of any
     instrument so endorsed. Borrower further authorizes Bank to sign Borrower's
     name  on  any   verifications  of  Eligible  Notes   Receivable,   to  send
     verifications of Eligible Notes Receivable to any party and to do all other
     acts  and  things  necessary  to  carry  out the  provisions  of this  Loan
     Agreement. Bank and its officers, directors, agents and designees shall not
     be  liable  for any acts of  omission  or  commission,  or for any error of
     judgment or mistake of act or law by Bank after  taking  such legal  title,
     unless done maliciously or with gross negligence;

h.   To  the  limited  extent  required  by  any  regulatory   authority  having
     jurisdiction  over Bank,  Borrower  will furnish to Bank  appraisals of the
     real  property  held as  collateral  prepared  in  accordance  with  Bank's
     instructions and in form and substance  satisfactory to Bank, within ninety
     (90)  days of each  request,  the cost of which  is to be borne  solely  by
     Borrower;

i.   Borrower  will permit any  officer,  employee or agent of Bank to visit and
     inspect its  principal  place of  business,  both  interior  and  exterior,
     examine so books ofrecord and accounts, take copies and extracts therefrom,
     and discuss the affairs,  finances and accounts of Borrower with Borrower's
     accountants and auditors, all at such reasonable times and as often as Bank
     may desire;

j.   Bank shall hold the  originals  of all  Eligible  Notes  Receivable  in its
     possession  and Borrower shall take such other and further action as may be
     necessary to maintain Bank's  perfected  security  interest in the Eligible
     Notes Receivable;

k.   Borrower  will  permit any  officer,  agent or  employee of the Bank's real
     estate  department  to review the  Eligible  Class A Notes  Receivable  and
     Eligible  Class F & I Assets to assess a valuation  of such  collateral  to
     determine  the  Borrowing  Base and to determine  whether any such property
     should be reclassified as Eligible Remaining Assets:

l.   Borrower will not permit its tangible net worth (on a  consolidated  basis)
     to be less than  $2,800,000  at any time after  December 31, 1998.  As used
     herein,  "tangible  net worth"  shall mean the sum of  preferred  stock (if
     any),  par value of common stock,  capital in excess of par value of common
     stock, and retained  earnings less treasury stock (if any), less good will,
     cost in excess of net assets acquired,  deferred  development costs and all
     other assets as are properly classified as intangible assets; and

m.   Borrower shall maintain on a consolidated basis a ratio of Total
     Liabilities to Tangible Net Worth not exceeding 2.00:  1.00. As used "Total
     Liabilities"   means  the  sum  of  current liabilities  plus  long  term
     liabilities, excluding any deferred income taxes.