AGREEMENT TO VOTE IN FAVOR
                           --------------------------

     This  AGREEMENT  TO  VOTE  IN  FAVOR  (this  "Agreement")  is  between  the
undersigned  stockholders   ("Stockholders")  of  Landmark  Financial  Corp.,  a
Delaware  corporation  ("Landmark"),  and  TrustCo  Bank  Corp  NY,  a New  York
corporation ("TrustCo").

                                    RECITALS
                                    --------

     A. TrustCo and Landmark are entering  into that certain  Agreement and Plan
of Merger, of even date herewith (the "Merger  Agreement"),  pursuant to which a
newly  chartered  subsidiary of TrustCo will merge with Landmark (the "Merger").
The Merger  Agreement  has been  approved by the Board of Directors of Landmark,
and,  pursuant to the laws of the State of  Delaware,  the Merger and the Merger
Agreement will be submitted to the stockholders of Landmark for their approval.

     B. The  Stockholders  are currently the owners and holders of a substantial
number of issued and outstanding  shares of common stock of Landmark entitled to
vote upon approval of the Merger and the Merger Agreement.

     C. TrustCo, in consideration of the time, effort, money and resources which
it will expend in furtherance  of the  transactions  contemplated  by the Merger
Agreement,  desires  to obtain the  agreement  of the  Stockholders  to vote for
approval and  adoption of the Merger  Agreement,  to vote against any  competing
proposal  or offer to  acquire  Landmark,  and to  refrain  from  soliciting  or
initiating any competing proposal or offer to acquire Landmark, all on the terms
and conditions set forth herein.

     D. The  Stockholders,  in order to induce  TrustCo to pursue the Merger and
enter into the Merger Agreement, and to assure the Stockholders of the potential
benefits of the proposed  Merger,  wish to vote for approval and adoption of the
Merger and the Merger Agreement upon the terms and conditions set forth herein.

                                    AGREEMENT
                                    ---------

     NOW THEREFORE, it is agreed as follows:

     Section 1.  Agreement to Vote.  The  Stockholders  shall vote all shares of
Landmark  common stock currently owned or controlled by them (the number of such
Shares owned by each Stockholder being set forth on Exhibit A hereto),  plus any
additional  shares which the  Stockholders  may own or control as of the date of
the  Landmark  Shareholders'  Meeting (as defined in the Merger  Agreement)  and
which the  Stockholders  are  entitled  to vote (the  "Shares")  (i) in favor of
approving  the Merger and  approving  and adopting  the Merger  Agreement at the
Landmark  Shareholders'  Meeting or at any  adjournments or postponements of the
Landmark  Shareholders' Meeting and (ii) against any proposal or offers from any
person relating to any merger, consolidation,  business combination with, or any
equity interest in Landmark,  or any acquisition or purchase of all or more than
ten  percent  (10.0%) of the assets or stock of  Landmark.  Notwithstanding  the
foregoing,  if a  Stockholder  controls  the Shares by virtue of an agreement or
relationship which is fiduciary in nature, and such relationship or the terms of
such agreement make it such Stockholder's fiduciary  responsibility to vote such
Shares other than as provided above, such Stockholder shall be free to do so.

     Section  2.  Restriction  on  Transfer  of  Shares.  Until  this  Agreement
terminates  pursuant  to  Section  4 below,  the  Stockholders  shall  not sell,
transfer,  assign,  or otherwise  dispose of the Shares or





grant a proxy to vote the Shares to any person unless such assignee,  transferee
or proxyholder  enters into an agreement with TrustCo  substantially in the form
of this Agreement.

     Section 3.  Stockholder's  Warranty of Ownership.  Each of the Stockholders
represents  and  warrants  that (i) such  Stockholder  either is the  record and
beneficial  owner or controls the Shares set forth by his or her name on Exhibit
A (except with respect to any Shares  which  Stockholder  does not own as of the
date of this Agreement but may acquire  following the date of this Agreement and
which are included within the definition of Shares),  (ii) such  Stockholder has
full right,  power, and authority to enter into and perform this Agreement,  and
(iii) nothing in this  Agreement  will violate the terms of any other  agreement
affecting the Shares.

     Section 4. Termination.  This Agreement shall terminate upon the earlier to
occur of (i) the termination of the Merger Agreement,  and (ii) the consummation
of the Merger.

     Section 5. Miscellaneous Provisions.

          Section 5.01.  Notice.  All notices under this  Agreement  shall be in
     writing  and may be  given  by  personal  delivery,  telecopier,  overnight
     express mail by a registered  national air courier,  or by registered mail.
     Notice by personal  delivery  shall be deemed  given upon  actual  receipt.
     Notice by telecopier or overnight express mail shall be deemed given on the
     date of actual  receipt.  Notice given by  registered  mail shall be deemed
     given on the third business day following the date when the notice material
     is deposited in the United States Mail, return receipt requested, addressed
     to each Stockholder at his address shown below.

          Section  5.02.  Applicable  Law.  This  Agreement  and the  rights and
     obligations of the  Stockholders  and TrustCo under this Agreement shall be
     governed,  construed,  and  interpreted in accordance  with the laws of the
     State of New York, without reference to any choice of law provisions.

          Section 5.03. Entire Agreement.  This Agreement constitutes the entire
     agreement  between each Stockholder and TrustCo with respect to the subject
     matter  hereof.  All prior oral  understandings  and  memoranda  expressing
     agreements  regarding  the subject  matter  hereof  between them are merged
     herein and are extinguished hereby.

               Section 5.04. Amendment. This Agreement may not be amended except
          by a writing executed by the Stockholders and TrustCo.

               Section 5.05.  Assignability  and Binding Effect.  This Agreement
          may not be assigned. This Agreement shall be binding upon and inure to
          the  benefit of the  Stockholders  and  TrustCo  and their  respective
          heirs,  devises,  legatees,   personal  representatives,   agents  and
          successors.

               Section  5.06.  Counterparts.  This  Agreement may be executed by
          TrustCo and the  Stockholders on any number of separate  counterparts,
          and all such counterparts so executed constitute one agreement binding
          on TrustCo and the Stockholders  notwithstanding that TrustCo and each
          of the Stockholders are not signatories to the same counterpart.





     IN WITNESS  WHEREOF,  the  Stockholders  and  TrustCo  have  executed  this
Agreement as of this 21 day of February, 2000.


STOCKHOLDERS:



Name: Frederick W. Lee                        Name: Edward R. Jacksland
Address:                                      Address:





Name: Gordon E. Coleman                       Name: John R. Francisco
Address:                                      Address:





Name: F. Richard Ferraro                      Name: Frederick P. LaCoppola
Address:                                      Address:





Name: Carl J. Rockefeller                     Name: Leila N. Salmon
Address:                                      Address:





Name: Patricia A. Symolon                     Name: Paul Hoffman
Address:                                      Address:




Name: H. Stuart Larson
Address:











                                        TRUSTCO BANK CORP NY


                                        By:
                                                 Name:
                                                 Title:

                                        Address: 320 State Street
                                                 Schenectady, New York 12305








                                    Exhibit A


                                                                  Number
                           Name                                 of Shares


                  Frederick W. Lee

                  Edward R. Jacksland

                  Gordon E. Coleman

                  John R. Francisco

                  F. Richard Ferraro

                  Frederick P. LaCoppola

                  Carl J. Rockefeller

                  Leila N. Salmon

                  Patricia A. Symolon

                  Paul Hofmann

                  H. Stuart Larson