ADVISORS SERIES TRUST
N-14, 1997-12-17
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   As filed with the Securities and Exchange Commission on December ___, 1997
                                                            File Nos.: 811-07959
                                                                        33-17391

                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM N-14

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                              ADVISORS SERIES TRUST
               (Exact Name of Registrant as Specified in Charter)


                                 (602) 952-1100
              (Registrant's Telephone Number, Including Area Code)


                       4455 E. Camelback Road, Suite 261E
                                Phoenix, AZ 85018
                    (Address of Principal Executive Offices)


                               ROBERT H. WADSWORTH
                              Advisors Series Trust
                       4455 E. Camelback Road, Suite 261E
                                Phoenix, AZ 85018
                     (Name and Address of Agent for Service)


                                    Copy to:

                               Julie Allecta, Esq.
                               Kelvin Leung, Esq.
                      Paul, Hastings, Janofsky & Walker LLP
                              345 California Street
                         San Francisco, California 94104

Approximate Date of Proposed Public Offering:  As soon as practicable after this
Registration  Statement  becomes  effective.  The registrant  hereby amends this
registration  statement  on such date or dates as may be  necessary to delay its
effective  date  until  the  registrant  shall  file a further  amendment  which
specifically  states that this  registration  statement shall thereafter  become
effective in  accordance  with Section 8(a) of the  Securities  Act of 1933,  as
amended, or until the registration statement shall become effective on such date
as the Commission, acting pursuant to said Section 8(a), may determine.

No filing fee is required under the Securities Act of 1933, as amended,  because
an indefinite number of shares of beneficial interest,  with par value $0.01 per
share,  has  previously  been  registered  pursuant  to  Rule  24f-2  under  the
Investment  Company Act of 1940, as amended.  The Registrant has not yet filed a
Rule 24f-2 Notice.
<PAGE>
CROSS REFERENCE SHEET


Form N-14 Part A, Item      Location in Prospectus/Proxy Statement
- ----------------------      --------------------------------------

         1                         Front Cover; Cross Reference

         2                         Table of Contents

         3                         Introduction;  Description  of  the  Proposed
                                   Reorganization; Comparison of the Funds; Risk
                                   Factors

         4                         Introduction,  The Transaction, The Proposal,
                                   Description of the Proposed Reorganization

         5, 6                      The  Transaction,  Comparison  of the  Funds;
                                   Risk Factors;  Further  Information About the
                                   Fund and the Acquiring Fund

         7                         Shares and Voting; Vote Required

         8                         Not Applicable

Form N-14 Part B, Item      Location in Statement of Additional Information
- ----------------------      -----------------------------------------------

         10                        Cover Page

         11                        Table of Contents

         12                        Incorporation  of  Documents  by Reference in
                                   Statement of Additional Information

         13                        Not Applicable

         14                        Incorporation  of  Documents  by Reference in
                                   Statement of Additional Information

Form N-14 Part C
- ----------------

Information required to be included in Part C is set forth under the appropriate
item, so numbered, in Part C of Form N-14.
<PAGE>
THE FOLLOWING ITEMS ARE HEREBY INCORPORATED BY REFERENCE:

From  Post-Effective  Amendment No. 7 of Advisors Series Trust, filed October 1,
1997 (SEC File No. 33-17391):

         Preliminary  Prospectus  for Van Deventer & Hoch  American  Value Fund,
         dated December __, 1997

         Preliminary Statement of Additional Information for Van Deventer & Hoch
         American Value Fund, dated December __, 1997

From  Post-Effective  Amendment No. 41 of Mutual Fund Group,  filed February 28,
1997 (SEC File No. 33-14196):

         Prospectus  for Vista  American  Value Fund (with other funds of Mutual
         Fund Group), dated February 28, 1997

As previously  sent to  shareholders  of the Vista American Value Fund and filed
with the SEC pursuant to Rule 30b2-1:

         Annual  Report for the Vista  American  Value Fund for the fiscal  year
         ended  October 30, 1996,  as contained in the Annual  Report for Mutual
         Fund Group dated as of and for the periods ended October 30, 1996.
<PAGE>









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

                                     PART A
                                     ------

- -------------------------------------------
<PAGE>
                                MUTUAL FUND GROUP
                              VISTA SERVICE CENTER
                                 P.O. Box 419392
                                 (800) 34-VISTA

                    NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                                       OF
                            VISTA AMERICAN VALUE FUND
                          TO BE HELD JANUARY ___, 1998

To the Shareholders of Vista American Value Fund:

                  NOTICE IS HEREBY GIVEN that a special  meeting (the "Meeting")
of  shareholders  of Vista American Value Fund (the "Fund"),  a series of Mutual
Fund Group,  will be held at the offices of The Chase  Manhattan Bank, One Chase
Manhattan Plaza,  Third Floor, New York, New York 10081 on January ___, 1998, at
10:00 a.m., local time, for the following purposes:

                  1.       To approve or disapprove a proposed reorganization of
                           the Fund  into Van  Deventer  & Hoch  American  Value
                           Fund, a series of Advisors Series Trust.
                  2.       To transact such other  business as may properly come
                           before the Meeting or any adjournment(s) thereof.

                  Only  shareholders  of  record  at the  close of  business  on
________  ________,  (the "Record  Date"),  will be entitled to notice of and to
vote at the Meeting or any adjournment thereof.

                                   By Order of the Board of Trustees


                                   -----------------------------
                                   W. Anthony Turner, Secretary

December ___, 1997

                  YOUR VOTE IS IMPORTANT REGARDLESS OF HOW MANY
                      SHARES YOU OWNED ON THE RECORD DATE.

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

PLEASE  INDICATE YOUR VOTING  INSTRUCTIONS  ON THE ENCLOSED PROXY FORM, DATE AND
SIGN IT, AND RETURN IT IN THE  PRE-ADDRESSED  ENVELOPE  PROVIDED.  NO POSTAGE IS
NECESSARY  IF  MAILED IN THE  UNITED  STATES.  IN ORDER TO AVOID THE  ADDITIONAL
EXPENSE OF FURTHER  SOLICITATION,  WE REQUEST YOUR  COOPERATION  IN MAILING YOUR
PROXY PROMPTLY.
<PAGE>
                                MUTUAL FUND GROUP
                            Vista American Value Fund

                                       and

                              ADVISORS SERIES TRUST
                     Van Deventer & Hoch American Value Fund

                     COMBINED PROXY STATEMENT AND PROSPECTUS
                     ---------------------------------------
                            DATED: December ___, 1997

         This  document,   which  includes  a  Notice  of  Special   Meeting  of
Shareholders,  a Combined Proxy Statement and Prospectus and a form of Proxy, is
being furnished in connection  with the  solicitation of proxies by the Board of
Trustees (the "Board of Trustees") of Mutual Fund Group (the "Trust") for use at
the Special  Meeting (the "Meeting") of shareholders of the Vista American Value
Fund (the "Fund"),  a separate  series of the Trust,  to be held on January ___,
1998.

         At the Meeting,  the  shareholders of the Fund will be asked to vote on
the approval or disapproval of a proposed  reorganization (the "Reorganization")
of the Fund into Van Deventer & Hoch American Value Fund (the "Acquiring Fund"),
a series of Advisors Series Trust ("AST Trust"). The Reorganization will include
(i)  the  transfer  of all of the  assets  and  liabilities  of the  Fund to the
Acquiring Fund in exchange for shares of the Acquiring Fund (the "Acquiring Fund
Shares") of equivalent value to the assets and liabilities transferred, (ii) the
pro rata distribution of such Acquiring Fund Shares to shareholders of record of
the Fund as of the effective date of the  Reorganization  (the "Effective Date")
in full  redemption  of such  shareholders'  shares in the  Fund,  and (iii) the
immediate  liquidation  and  termination  of  the  Fund.  As  a  result  of  the
Reorganization,  each shareholder of the Fund as of the Effective Date will hold
Acquiring Fund Shares having the same aggregate net asset value as the shares of
the  Fund  held by  such  shareholder  immediately  before  consummation  of the
Reorganization.  Counsel  to the  Acquiring  Fund will  issue an  opinion to the
effect that for federal income tax purposes,  the Reorganization will be treated
as a  tax-free  reorganization  that will not cause the Fund's  shareholders  to
recognize a gain or loss for federal  income tax  purposes.  See Section  II.A.3
below.

         Both  the  Trust  and AST  Trust  are  open-end  management  investment
companies.  The  investment  objective of the Fund is to seek to maximize  total
return,  consisting of capital  appreciation  (both realized and unrealized) and
income, by investing primarily in the equity securities of well-established U.S.
companies (i.e.,  companies with at least a five-year  operating history) which,
in the  opinion of the Fund's  advisers,  are  undervalued  by the  market.  The
Acquiring Fund has an identical investment objective.

         The principal  executive  offices of the Trust are located at The Chase
Manhattan Bank, One Chase Manhattan Plaza, Third Floor, New York, New York 10081
(telephone:  (800) 
                                      -1-
<PAGE>
34-VISTA).  The principal  executive offices of AST Trust are located at 4455 E.
Camelback Road, Suite 261E, Phoenix, Arizona 85018 (telephone: (602) 952-8520).

         This Combined Proxy  Statement and Prospectus  sets forth concisely the
information  that a  shareholder  of the Fund should  know before  voting on the
proposal. It should be read and retained for future reference.

         The  Acquiring  Fund is a new  series of AST  Trust.  The  registration
statement for the Acquiring Fund (which includes the preliminary  Prospectus and
the preliminary Statement of Additional Information for the Acquiring Fund dated
December ___, 1997) was filed with the Securities and Exchange  Commission  (the
"SEC") on October 1, 1997 and is now effective. The Prospectus and the Statement
of Additional Information for the Acquiring Fund both dated [December 15, 1997],
the Prospectus  for the Fund dated February 28, 1997, the combined  Statement of
Additional  Information  relating to the Fund (as well as certain  other  mutual
funds in the Vista  Family of Funds) dated May 19,  1997,  and the  Statement of
Additional  Information relating to this Combined Proxy Statement and Prospectus
of even date  herewith,  are on file with the SEC and are  incorporated  by this
reference  herein.  The  Prospectus  of the Acquiring  Fund dated  [December 15,
1997],  and a copy  of the  Prospectus  of the  Fund  dated  February  28,  1997
accompanies  this  document.  The  Statement of  Additional  Information  of the
Acquiring Fund dated [December 15, 1997], is available without charge by writing
to Van Deventer & Hoch at 800 North Brand Blvd., Suite 300, Glendale, California
91203 or by calling (818) 247-5330.  The Statement of Additional  Information of
the Fund (as well as  certain  other  Vista  Funds)  dated May 19,  1997 and the
Statement of Additional  Information  relating to this Combined Proxy  Statement
and Prospectus of even date herewith, are available without charge by writing to
the Trust at Vista Service Center, P.O. Box 419392, Kansas City, MO 64141, or by
calling (800) 34-VISTA.

         The Annual Report to Shareholders of the Fund for the fiscal year ended
October 31, 1996  containing  audited  financial  statements of the Fund and the
Semi-Annual Report to Shareholders of the Fund for the fiscal period ended April
30, 1997,  containing unaudited financial statements of the Fund previously have
been  mailed to each  shareholder  entitled to vote at the  Meeting.  Additional
copies of that Annual Report  and/or  Semi-Annual  Report are available  without
charge by writing or  calling  the Trust at its  address  and  telephone  number
listed  above.  The  Acquiring  Fund is a new  series  of AST  Trust and has not
commenced  operation.  Therefore,  no  Annual  Report  to  Shareholders  of  the
Acquiring Fund is available.  It is expected that this Combined Proxy  Statement
and Prospectus will be mailed to shareholders on or about December ___, 1997.

THESE  SECURITIES  HAVE NOT BEEN APPROVED OR  DISAPPROVED  BY THE SECURITIES AND
EXCHANGE  COMMISSION OR ANY STATE  SECURITIES  COMMISSION NOR HAS THE SECURITIES
AND  EXCHANGE  COMMISSION  OR ANY STATE  SECURITIES  COMMISSION  PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
                                      -2-
<PAGE>
INVESTMENTS  IN THE  FUND  AND THE  ACQUIRING  FUND  ARE NOT  BANK  DEPOSITS  OR
OBLIGATIONS OF, OR GUARANTEED OR ENDORSED BY, THE CHASE MANHATTAN BANK OR ANY OF
ITS AFFILIATES AND ARE NOT INSURED BY THE FDIC, THE FEDERAL RESERVE BOARD OR ANY
OTHER GOVERNMENT AGENCY. INVESTMENTS IN MUTUAL FUNDS INVOLVE RISK, INCLUDING THE
POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
                                      -3-
<PAGE>
<TABLE>
<CAPTION>
                                          TABLE OF CONTENTS

<S>      <C>                                                                                        <C>
I.       INTRODUCTION................................................................................5
         A.       THE TRANSACTION....................................................................5
         B.       THE PROPOSAL.......................................................................6
         C.       SHARES AND VOTING..................................................................7
                                                                                                   
II.      THE PROPOSAL: APPROVAL OF THE PROPOSED REORGANIZATION.......................................9
         A.       DESCRIPTION OF THE PROPOSED REORGANIZATION.........................................9
                  1.       The Reorganization........................................................9
                  2.       Effect of the Reorganization.............................................10
                  3.       Federal Income Tax Consequences..........................................10
                  4.       Description of the Acquiring Fund Shares.................................11
                  5.       Capitalization...........................................................11
         B.       COMPARISON OF THE FUNDS...........................................................11
                  1.       Investment Objectives and Policies.......................................11
                  2.       Investment Restrictions..................................................12
                  3.       Comparative Performance Information......................................14
                  4.       Advisory Fees, Sub-Advisory Fees and Other                              
                           Expenses.................................................................15
                  5.       Distribution and Shareholder Services....................................16
                  6.       Distribution Plans.......................................................16
                  7.       Administration, Custody, Fund Accounting and Transfer Agency            
                           Services.................................................................17
                  8.       Shareholder Servicing Agents.............................................18
                  9.       Purchase Procedures......................................................19
                  10.      Comparative Summary of Investor Costs....................................20
                  11.      Redemption and Exchange Procedures.......................................21
                  12.      Income Dividends, Capital Gains Distributions and Taxes..................21
                  13.      Portfolio Transactions and Brokerage Commissions.........................22
                  14.      Shareholders' Rights.....................................................22
         C.       RISK FACTORS......................................................................23
         D.       RECOMMENDATION OF THE BOARD OF TRUSTEES...........................................23
                  1.       The Legal Framework......................................................23
                  2.       The Trustees' Considerations.............................................25
         E.       DISSENTERS' RIGHTS OF APPRAISAL...................................................26
         F.       FURTHER INFORMATION ABOUT THE FUND AND THE                                       
                  ACQUIRING FUND....................................................................26
         G.       VOTE REQUIRED.....................................................................26
                                                                                                   
III.     MISCELLANEOUS ISSUES.......................................................................27
         A.       OTHER BUSINESS....................................................................27
         B.       NEXT MEETING OF SHAREHOLDERS......................................................27
         C.       LEGAL MATTERS.....................................................................27
         D.       EXPERTS...........................................................................27
                                                                                                 
</TABLE>
                                      -4-
<PAGE>
                                 I. INTRODUCTION

A.       THE TRANSACTION

         The Meeting has been called for the purpose of allowing shareholders to
consider and vote on a proposal which relates to a recent  business  transaction
involving Van Deventer & Hoch ("VDH"),  the investment  sub-adviser to the Fund.
Currently,  VDH is 50%  owned  by VDH  Holdings  (which  in turn is owned by the
Fund's  management  team).  The  other  50%  of  VDH is  owned  by  CBC  Holding
(California)  Inc.,  a subsidiary  of The Chase  Manhattan  Corporation,  a bank
holding company that also owns The Chase  Manhattan Bank, the Fund's  investment
adviser ("Chase"). Through VDH's relationship with Chase, the Fund has been part
of the Vista Family of Funds and a series of Mutual Fund Group, a  Massachusetts
business trust.

         Pursuant to a Purchase Agreement dated as of October 6, 1997, The Chase
Manhattan Corporation, through its subsidiary CBC Holding (California) Inc., has
agreed  to sell its 50%  interest  in VDH to  Crestline  Capital  Partners  L.P.
("Crestline"),  which is a  Delaware  limited  partnership  whose  sole  general
partner is PLT  Capital  Partners,  Inc.,  a Delaware  corporation.  PLT Capital
Partners,  Inc. is a wholly-owned  subsidiary of PLT Holdings,  Inc., a Delaware
corporation that also holds all the outstanding limited partnership interests of
Crestline.  PLT Holdings,  Inc. is a holding company whose subsidiaries include,
among others,  Putnam,  Lovell & Thornton,  Inc., a Delaware  corporation and an
investment  banking firm that focuses on the  financial  services  sector with a
special emphasis on the asset management industry ("Putnam,  Lovell"). The other
50% interest in VDH which is held by the Fund's  management team is not affected
by  this  transaction.  For  purposes  of  this  Combined  Proxy  Statement  and
Prospectus,  the transaction is called the "Sale." The Sale is expected to close
on or about  [December  ___,  1997].  After the  Sale,  key  members  of the VDH
portfolio  management team,  including  Richard  Trautwein,  will continue to be
responsible  for  managing  the  day-to-day  affairs  of VDH,  which will be the
adviser to the Acquiring Fund.

         After the Sale,  Van Deventer & Hoch will no longer be affiliated  with
Chase.  Given this change in ownership of VDH, as well as the current  ownership
base of the Fund, Chase and the Trustees believe that the  Reorganization of the
Fund  into a new  investment  company  portfolio  having  VDH as its  investment
adviser is in the best interests of the  shareholders  of the Fund,  rather than
for the Fund to continue to be a part of the Vista Family of Funds.

         In light of the foregoing  considerations and the other  considerations
described  herein,  the Board of  Trustees  have  considered  and  approved  the
Reorganization  of the Fund  into a newly  created  portfolio  of AST  Trust,  a
Delaware  business  trust  organized  on October 3, 1996,  with eleven  existing
series, which has all the necessary service providers in place and would be in a
position to service the Fund and its shareholders  without  interruption as soon
as practicable following consummation of the Sale. Giving effect to a commitment
by VDH to waive fees payable to it and/or reimburse expenses, the Acquiring Fund
will  have a lower  expense  ratio  than the Fund from the  consummation  of the
Reorganization (which is expected to occur in January 1998) through May 6, 1998.
After that date, VDH has committed to waive fees and/or  reimburse  expenses for
the two year period  commencing upon  consummation of the  Reorganization to the
                                      -5-
<PAGE>
extent  necessary to prevent the expense ratio of the  Acquiring  Fund (based on
estimated  expenses  for the  current  fiscal  year) from  exceeding  the Fund's
current  expense  ratio  (based on expenses  incurred in the most recent  fiscal
year, after giving effect to any waivers and/or  reimbursements  by Chase).  The
Reorganization  will be  accomplished  by  transferring  all of the  assets  and
liabilities  of the Fund to a new shell  series  (called  "Van  Deventer  & Hoch
American  Value  Fund" and  referred to herein as the  "Acquiring  Fund") of AST
Trust with the result that the  existing  shareholders  of the Fund will become,
after the  Reorganization,  the shareholders of the Van Deventer & Hoch American
Value Fund (as defined above, the "Acquiring  Fund"), a series of AST Trust. The
net asset value per share of the  Acquiring  Fund and the number of shares owned
by  each  Acquiring  Fund  shareholder  will  be the  same  on the  date  of the
Reorganization  as the net asset  value per share of the Fund and the  number of
shares owned on that date by the Fund's shareholders.

         The cost of the  Reorganization  and of the Meeting and solicitation of
proxies therefor,  including the cost of copying,  printing and mailing of proxy
materials,  will be borne by Chase  and/or VDH and not by either the Fund or the
Acquiring  Fund.  In  addition  to  solicitations  by mail,  proxies may also be
solicited  by officers of the Trust or VDH,  without  special  compensation,  by
telephone, telegram or otherwise.

B.       THE PROPOSAL

         At the Meeting,  the  shareholders of the Fund will be asked to approve
the  proposed   Reorganization   of  the  Fund  into  the  Acquiring  Fund.  The
Reorganization will include the transfer of all of the assets and liabilities of
the Fund to the Acquiring  Fund in exchange for shares of the Acquiring  Fund of
equivalent value, the pro rata distribution of such Acquiring Fund Shares to the
shareholders of the Fund in full redemption of such shareholders'  shares in the
Fund, and the immediate liquidation and termination of the Fund.

         The  Fund and the  Acquiring  Fund  (collectively,  the  "Funds")  have
identical  investment  objectives and policies.  The investment objective of the
Fund is to seek to maximize  total return,  consisting  of capital  appreciation
(both realized and unrealized) and income, by investing  primarily in the equity
securities of well-established  U.S. companies (i.e.,  companies with at least a
five-year  operating history) which, in the opinion of the Fund's advisers,  are
undervalued by the market.

         Investments  in the Funds are subject to  substantially  similar risks.
See Section II.C. below.

         The purchase and redemption arrangements of the Funds are substantially
identical.  The  Acquiring  Fund and the Fund have  different  distribution  and
exchange arrangements which are more fully discussed in Section II.B. below.

         Shareholders  should note that if the  Reorganization  is  consummated,
shareholders  of the Fund will no longer be able to  exchange  their Fund shares
into shares of another fund in the Vista
                                      -6-
<PAGE>
Family of Funds or enjoy any of the other shareholder privileges associated with
being a shareholder of a fund in the Vista Family of Funds.

         The investment  adviser to the Fund is The Chase Manhattan Bank and the
sub-adviser to the Fund is Van Deventer & Hoch.  Van Deventer & Hoch,  after the
closing of the Sale,  also serves as investment  adviser to the Acquiring  Fund,
which does not have a sub-adviser.  As discussed below, the Board of Trustees of
the Trust believes that the proposed  Reorganization is in the best interests of
the Fund and its shareholders,  and that the interests of existing  shareholders
of the Fund will not be diluted as a result of the proposed Reorganization.
See Section II.D. below.

C.       SHARES AND VOTING

         The Trust is a Massachusetts  business trust and is registered with the
SEC as an  open-end  management  investment  company.  The Trust  currently  has
seventeen  operating  series,  or funds,  outstanding (and an additional  series
currently under  registration with the SEC),  including the Fund. Each series or
fund has its own  investment  objective and policies and operates  independently
for purposes of investments, dividends, other distributions and redemptions. The
Fund has only one class of shares.  The Acquiring Fund also has designated  only
one  class of  shares.  The  Fund's  shareholders  will  receive  shares  of the
Acquiring  Fund in  exchange  for their  Fund  shares if the  Reorganization  is
approved and  consummated.  Similar to the structure of the Fund,  the Acquiring
Fund will have a plan of  distribution  pursuant  to Rule  12b-1 as  promulgated
under the Investment Company Act of 1940, as amended (the "1940 Act").

         Each share of the Fund, or fraction thereof, is entitled to one vote or
corresponding  fraction  thereof at the  Meeting.  At the close of  business  on
___________________  (the "Record Date"),  the record date for the determination
of shareholders  entitled to vote at the Meeting,  there were  _________________
shares  outstanding  held by _____ record holders  (including  omnibus  accounts
representing multiple underlying beneficial owners).

         All shares  represented by each properly signed proxy received prior to
the Meeting will be voted at the Meeting.  If a  shareholder  specifies  how the
proxy is to be voted on any  business  properly to come before the  Meeting,  it
will be voted in accordance with such  instruction.  A proxy may be revoked by a
shareholder  at any time  prior to its use by written  notice to the  Trust,  by
submission of a later-dated proxy or by voting in person at the Meeting.  If any
other  matters  come before the  Meeting,  proxies  will be voted by the persons
named therein as proxies in accordance with such persons' best judgment.

         The  holders of a  majority  of  outstanding  shares  entitled  to vote
present  in  person  or by proxy  will  constitute  a  quorum.  When a quorum is
present,  approval of the  proposal  will  require the  affirmative  vote of the
lesser of (i) 67% of the shares  represented  at the Meeting if more than 50% of
the outstanding shares is represented, or (ii) shares representing more than 50%
of the Fund's outstanding shares. The Meeting may be adjourned from time to time
by a majority  of the votes  properly  cast upon the  question of  adjourning  a
Meeting to another  date and time,  whether or not a quorum is present,  and the
Meeting may be held as adjourned without further notice.
                                      -7-
<PAGE>
The  persons  named in the proxy  will vote in favor of such  adjournment  those
shares  which they are  entitled to vote if such  adjournment  is  necessary  to
obtain a quorum or to obtain a favorable vote on any proposal.

         All proxies voted, including abstentions and broker non-votes,  will be
counted toward establishing a quorum.  Approval of the Reorganization will occur
only if a sufficient  number of votes are cast FOR that  proposal.  Accordingly,
abstentions  and broker  non-votes  have the  effect of a  negative  vote on the
proposal.

         As of the Record Date,  the Fund's  shareholders  of record and (to the
Trust's  knowledge)  beneficial  owners who owned more than five  percent of the
Fund's shares are as follows:

                                              Percentage of the Fund's
         Shareholder                             Outstanding Shares
         -----------                             ------------------

         [Chemical Bank NY
         Investment Services Dept.
         270 Park Ave 31st Fl.
         New York, NY 10017-2014]                     [to come]

         [Chemical Bank
         Custodian For the IRA of
         Donald F. Grannis
         100 No. San Rafael Ave.
         Pasadena, CA 91105]                          [to come]

         The  Acquiring  Fund is  under  registration  with the  Securities  and
Exchange Commission and does not have any public shareholders. Currently, [First
Fund Distributors, Inc.] holds all the outstanding shares of the Acquiring Fund.

         The officers and trustees of the Trust, as a group, owned of record and
beneficially  less than one percent of the outstanding  voting securities of the
Fund and the Acquiring Fund, respectively, as of the Record Date.
                                      -8-
<PAGE>
                                II. THE PROPOSAL:
                     APPROVAL OF THE PROPOSED REORGANIZATION


A.       DESCRIPTION OF THE PROPOSED REORGANIZATION

         1.       The Reorganization
                  ------------------

         If the Reorganization is approved,  on the Effective Date the Acquiring
Fund will acquire the assets and  liabilities of the Fund, and will issue to the
Fund the number of Acquiring Fund Shares determined by dividing the value of the
Fund's  assets and  liabilities  so  transferred  by the net asset  value of one
Acquiring Fund Share.  The assets and  liabilities of the Fund and the net asset
value of the  Acquiring  Fund will be calculated at the close of business on the
date  immediately  preceding  the  Effective  Date  (the  "Valuation  Date")  in
accordance with the Funds'  valuation  procedures  described in their respective
Prospectuses  (in the case of the Acquiring Fund, the Prospectus dated [December
15,  1997],  and, in the case of the Fund,  the  Prospectus  dated  February 28,
1997).  Contemporaneously with that asset transfer, the Fund will distribute the
Acquiring Fund Shares it receives pro rata to each remaining  shareholder of the
Fund  based on the  percentage  of the  outstanding  shares  of the Fund held of
record  by  that   shareholder   on  the  Valuation   Date.   For  example,   on
________________,  1997,  the value of the  aggregate net assets of the Fund was
approximately  ____________,  the total  number of  outstanding  Fund shares was
________,  and the net asset  value of each  Acquiring  Fund  Share  was  $____.
Therefore,  if the Effective  Date had been  ________,  1997, the Acquiring Fund
would have issued a total of ________ Acquiring Fund Shares to the Fund, and the
Fund would then have  redeemed each of its then  outstanding  shares in exchange
for ________ Acquiring Fund Shares.

         This  distribution  of the  Acquiring  Fund  Shares  by the Fund to its
shareholders  in full  redemption  of such  shareholders'  Fund  shares  will be
accomplished by the establishment of book accounts on the Acquiring Fund's share
records in the name of the respective shareholders of the Fund, representing the
respective  pro rata numbers of Acquiring  Fund Shares  deliverable  to the Fund
shareholders.  Fractional  shares  will be carried to the third  decimal  place.
Certificates  evidencing  the  Acquiring  Fund  Shares will not be issued to the
Fund's shareholders.

         Immediately  following the Fund's pro rata liquidating  distribution of
the Acquiring Fund Shares to the Fund shareholders,  the Fund will liquidate and
terminate.

         Consummation  of the  Reorganization  is  subject  to  approval  by the
shareholders of the Fund and the satisfaction of certain other  conditions.  The
Reorganization  may be abandoned at any time before the Effective  Date upon the
vote of either a majority of the Board of Trustees or a majority of the board of
trustees of AST Trust.

         Chase and/or VDH will pay all costs and expenses of the Reorganization,
including  those  associated  with  the  Meeting,  the  copying,   printing  and
distribution  of  this  Combined  Proxy   Statement  and  Prospectus,   and  the
solicitation of proxies for the Meeting.
                                      -9-
<PAGE>
         The above is a summary  of the  Reorganization.  The  summary  does not
purport to be a complete  description of the terms of the Reorganization,  which
are set forth in the Agreement and Plan of Reorganization  attached as Exhibit A
to this document.

         2.       Effect of the Reorganization
                  ----------------------------

         If the  Reorganization  is approved and completed,  shareholders of the
Fund as of the Effective Date will become  shareholders  of the Acquiring  Fund,
which  will  acquire  the net  assets  of the Fund.  The net asset  value of the
Acquiring  Fund Shares held by each  shareholder of the Fund  immediately  after
consummation of the Reorganization  will be equivalent to the net asset value of
the Fund Shares held by that shareholder  immediately before consummation of the
Reorganization.

         On or before the Effective  Date the Fund intends to distribute  all of
its then remaining net investment income and realized capital gain.

         VDH, the current  sub-adviser to the Fund, will, after the Sale, be the
investment  adviser for the Acquiring  Fund and therefore will be the investment
adviser for the Fund's assets after the Reorganization. Chase will cease to have
any relationship  with the operation of the Fund (in its  reconstituted  form as
the Acquiring Fund).  Also, after the  Reorganization,  First Fund Distributors,
Inc. will be  distributor  of the Acquiring  Fund's shares instead of Vista Fund
Distributors,  Inc.,  the  distributor  of shares of the Fund.  It is,  however,
expected that the Acquiring Fund will be managed in accordance with its existing
investment objective and policies, which are identical to that of the Fund.

         3.       Federal Income Tax Consequences
                  -------------------------------

         As a condition to the closing of the  Reorganization,  the Fund and the
Acquiring Fund must receive a favorable opinion from Paul, Hastings,  Janofsky &
Walker LLP, counsel to the Acquiring Fund, substantially to the effect that, for
federal income tax purposes:  (a) The transfer by the Fund of substantially  all
of its assets to the Acquiring  Fund solely in exchange for the  Acquiring  Fund
Shares,  as described above, is a  reorganization  within the meaning of Section
368(a)(1)(D) of the Internal Revenue Code of 1986, as amended (the "Code");  (b)
no gain or loss is recognized by the Fund upon the transfer of substantially all
of its  assets  to the  Acquiring  Fund in  exchange  solely  for  shares of the
Acquiring  Fund Shares;  (c) no gain or loss is recognized by the Acquiring Fund
on receipt of the Fund assets in exchange for the Acquiring Fund Shares; (d) the
basis of the assets of the Fund in the hands of the  Acquiring  Fund is, in each
instance,  the  same as the  basis  of  those  assets  in the  hands of the Fund
immediately  prior to the  transaction;  (e) the  holding  period of the  Fund's
assets in the hands of the  Acquiring  Fund includes the period during which the
assets  were  held  by the  Fund;  (f) no gain  or  loss  is  recognized  to the
shareholders of the Fund upon the receipt of the Acquiring Fund Shares solely in
exchange  for the Fund's  shares;  (g) the basis of the  Acquiring  Fund  Shares
received by the Fund shareholders is, in each instance, the same as the basis of
the Fund shares surrendered in exchange therefor;  and (h) the holding period of
the Acquiring Fund Shares received by the Fund shareholders includes the holding
period during which shares of the Fund surrendered and exchanged therefor
                                      -10-
<PAGE>
was held, provided that such shares were held as a capital asset in the hands of
the Fund shareholders on the date of the exchange.  The Trust does not intend to
seek a private letter ruling from the Internal  Revenue  Service with respect to
the tax effects of the Reorganization.

         4.       Description of the Acquiring Fund Shares
                  ----------------------------------------

         Each Acquiring Fund Share issued to Fund  shareholders  pursuant to the
Reorganization  will  be  duly  authorized,   validly  issued,  fully  paid  and
nonassessable  when issued,  will be transferable  without  restriction and will
have no  preemptive  or  conversion  rights.  Each  Acquiring  Fund  Share  will
represent an equal  interest in the assets of the Acquiring  Fund. The Acquiring
Fund  Shares  will be sold and  redeemed  based upon the net asset  value of the
Acquiring  Fund next  determined  after  receipt of the  purchase or  redemption
request, as described in the Acquiring Fund's Prospectus.

         5.       Capitalization
                  --------------

         The  capitalization  of the Funds as of October 31, 1996, and their pro
forma  combined  capitalization  as of that  date  after  giving  effect  to the
proposed Reorganization are as follows:

<TABLE>
<CAPTION>
                                    (Unaudited)          (Unaudited)
                                     Acquiring            Acquired           Pro Forma
                                       Fund                 Fund              Combined
                                   ----------------------------------------------------

<S>                                <C>                   <C>                 <C>       
Aggregate net assets ..........    $        0**          $9,609,400          $9,609,400

Shares outstanding* ...........             0**             712,360             712,360

Net asset value per share .....             0**          $    13.49          $    13.49
- -----------------------------------
</TABLE>

*        Each Fund is authorized to issue an indefinite number of shares.
**       The  Acquiring  Fund is a new series of Advisors  Series  Trust that is
         currently  under  registration  with  the  SEC.  Therefore,  it has not
         commenced   operation  and  currently  has  no  assets  and  no  shares
         outstanding.

B.       COMPARISON OF THE FUNDS

         A brief  comparison of the Funds is set forth below.  See Section II.F.
for more information.

         1.       Investment Objectives and Policies
                  ----------------------------------

         The Fund / The Acquiring Fund. The investment  objective of the Fund is
to seek to maximize  total  return,  consisting  of capital  appreciation  (both
realized  and  unrealized)  and income,  by  investing  primarily  in the equity
securities of well-established  U.S. companies (i.e.,  companies with at least a
five-year  operating history) which, in the opinion of the Fund's advisers,  are
undervalued by the market.
                                      -11-
<PAGE>
         The equity  securities in which the Fund invests  generally  consist of
common stock,  preferred stock and securities  convertible  into or exchangeable
for common or preferred stock. Under normal market  conditions,  at least 65% of
the value of the Fund's total  assets will be invested in the equity  securities
of U.S.  companies.  The Fund may invest in companies  without  regard to market
capitalization,  although it  generally  does not expect to invest in  companies
with market  capitalizations of less than $200 million.  The securities in which
the Fund invests are expected to be either listed on an exchange or traded in an
over-the-counter market.

         In selecting  investments  for the Fund,  its advisers  generally  seek
companies which they believe exhibit  characteristics of financial soundness and
are  undervalued  by the  market.  In  seeking  to  identify  financially  sound
companies,  the Fund's  advisers  look for companies  with strongly  capitalized
balance sheets,  an ability to generate  substantial  cash flow,  relatively low
levels of leverage,  an ability to meet debt service  requirements and a history
of paying dividends. In seeking to identify undervalued companies,  the advisers
look for companies with substantial  tangible assets such as land,  timber,  oil
and other natural resources,  or important brand names,  patents,  franchises or
other  intangible  assets which may have greater value than what is reflected in
the  company's  financial  statements.  The Fund's  advisers  will often  select
investments  for the Fund  which  are  considered  to be  unattractive  by other
investors or are unpopular with the financial press.

         Although the Fund invests primarily in equity securities, it may invest
up to 25% of the value of its total  assets in high  quality,  short-term  money
market instruments, repurchase agreements and cash.

         The Acquiring Fund has the identical investment objective and policies.

         2.       Investment Restrictions
                  -----------------------

         Both  the  Acquiring  Fund  and the  Fund  have  identical  fundamental
investment  restrictions which cannot be changed without the affirmative vote of
a majority of each Fund's  outstanding  voting securities as defined in the 1940
Act. Neither the Acquiring Fund nor the Fund may:

         (1) borrow money,  except that each of the Acquiring  Fund and the Fund
may borrow money for temporary or emergency purposes,  or by engaging in reverse
repurchase transactions,  in an amount not exceeding 33-1/3% of the value of its
total  assets  at the time  when the loan is made and may  pledge,  mortgage  or
hypothecate  no more than 1/3 of its net assets to secure such  borrowings.  Any
borrowings  representing  more than 5% of the Acquiring Fund or the Fund's total
assets must be repaid before the Acquiring Fund or the Fund, as the case may be,
may make additional investments;

         (2) make  loans,  except that each of the  Acquiring  Fund and the Fund
may: (a)  purchase  and hold debt  instruments  (including  without  limitation,
bonds,  notes,  debentures or other  obligations  and  certificates  of deposit,
banker'  acceptances  and fixed time deposits) in accordance with its investment
objectives and policies;  (b) enter into  repurchase  agreements with 
                                      -12-
<PAGE>
respect to portfolio securities;  and (c) lend portfolio securities with a value
not in excess of one-third of the value of its total assets;

         (3) purchase the securities of any issuer (other than securities issued
or   guaranteed   by  the   U.S.   government   or  any  of  its   agencies   or
instrumentalities,  or repurchase  agreements  secured thereby) if, as a result,
more than 25% of the Acquiring Fund or the Fund's total assets would be invested
in the securities of companies  whose principal  business  activities are in the
same industry. Notwithstanding the foregoing, with respect to the Acquiring Fund
or the Fund's permissible  futures and options  transactions in U.S.  Government
securities,  positions in such options and futures  shall not be subject to this
restriction;

         (4) purchase or sell physical  commodities  unless acquired as a result
of ownership of securities or other  instruments  but this shall not prevent the
Acquiring  Fund or the Fund from (a)  purchasing or selling  options and futures
contracts  or from  investing  in  securities  or other  instruments  backed  by
physical  commodities  or (b) engaging in forward  purchases or sales of foreign
currencies or securities;

         (5)  purchase  or sell  real  estate  unless  acquired  as a result  of
ownership of  securities  or other  instruments  (but this shall not prevent the
Acquiring  Fund or the Fund from  investing in securities  or other  instruments
backed by real  estate or  securities  of  companies  engaged in the real estate
business).  Investments  by the Fund in  securities  backed by mortgages on real
estate or in marketable  securities of companies  engaged in such activities are
not hereby precluded;

         (6) issue any senior security (as defined in the 1940 Act), except that
(a) each of the Acquiring Fund and the Fund may engage in transactions  that may
result in the  issuance  of senior  securities  to the  extent  permitted  under
applicable  regulations  and  interpretations  of the 1940  Act or an  exemptive
order; (b) each of the Acquiring Fund and the Fund may acquire other securities,
the acquisition of which may result in the issuance of a senior security, to the
extent permitted under  applicable  regulations or  interpretations  of the 1940
Act; and (c) subject to the restrictions set forth above,  each of the Acquiring
and the Fund may borrow  money as  authorized  by the 1940 Act.  For purposes of
this restriction,  collateral  arrangements with respect to permissible  options
and futures  transactions,  including  deposits of initial and variation margin,
are not considered to be the issuance of a senior security;

         (7) underwrite securities issued by other persons except insofar as the
Acquiring Fund or the Fund may technically be deemed to be an underwriter  under
the Securities Act of 1933 in selling a portfolio security; or

         (8)  with  respect  to 75% of its  assets,  hold  more  than 10% of the
outstanding voting securities of any issuer or invest more than 5% of its assets
in the  securities  of any  one  issuer  (other  than  obligations  of the  U.S.
Government, its agencies and instrumentalities).

         In addition,  as a matter of fundamental  policy,  notwithstanding  any
other investment policy or restriction,  each of the Acquiring Fund and the Fund
may seek to achieve its investment  objective by investing all of its investable
assets in another  investment  company having  
                                      -13-
<PAGE>
substantially  the same  investment  objective  and  policies  as the Fund.  For
purposes of investment  restriction (5) above,  real estate includes Real Estate
Limited Partnerships.

         For  purposes  of   investment   restriction   (3)  above,   industrial
development  bonds,  where the payment of principal and interest is the ultimate
responsibility of companies within the same industry, are grouped together as an
"industry."  Investment  restriction  (3) above,  however,  is not applicable to
investments by the Fund in municipal obligations where the issuer is regarded as
a state,  city,  municipality or other public  authority since such entities are
not  members of an  "industry."  Supranational  organizations  are  collectively
considered to be members of a single  "industry" for purposes of restriction (3)
above.

         In addition,  each of the Acquiring Fund and the Fund is subject to the
following non-fundamental  restrictions which may be changed without shareholder
approval:

         (1) Each of the Acquiring Fund and the Fund may not make short sales of
securities,  other than short sales "against the box," or purchase securities on
margin  except for  short-term  credits  necessary  for  clearance  of portfolio
transactions,  provided that this  restriction  will not be applied to limit the
use of options,  futures contracts and related options,  in the manner otherwise
permitted by the investment restrictions, policies and investment program of the
Fund.

         (2) Each of the  Acquiring  Fund and the Fund may not  purchase or sell
interests in oil, gas or mineral leases.

         (3) Each of the  Acquiring  Fund and the Fund may not invest  more than
15% of its net assets in illiquid securities.

         (4) Each of the Acquiring Fund and the Fund may not write,  purchase or
sell any put or call option or any combination thereof, provided that this shall
not  prevent  (a)  the  writing,   purchasing  or  selling  of  puts,  calls  or
combinations thereof with respect to portfolio  securities;  or (b) with respect
to  the  Acquiring   Fund  or  the  Fund's   permissible   futures  and  options
transactions, the writing, purchasing,  ownership, holding or selling of futures
and options positions or of puts, calls or combinations  thereof with respect to
futures.

         (5) Except as specified above,  each of the Acquiring Fund and the Fund
may invest up to 5% of its total assets in the  securities of any one investment
company,  but may not own more than 3% of the  securities of any one  investment
company or invest more than 10% of its total assets in the  securities  of other
investment companies.

         3.       Comparative Performance Information
                  -----------------------------------

         The table below indicates the average annual total return (with capital
gains and all dividends and  distributions  reinvested)  for the Fund during the
periods  ending October 31, 1996. The Acquiring Fund is a new series that is not
yet in operation. Therefore, no performance information is available.
                                      -14-
<PAGE>
<TABLE>
<CAPTION>
                                                     Average Annual Total Return
                                                     ---------------------------

                                          One Year(1)     Five Years     Since Inception(2)
                                          --------        ----------     ---------------

<S>                                        <C>               <C>              <C>   
Vista American Value Fund(3)               21.70%            N/A              21.86%

Van Deventer & Hoch                         N/A              N/A               N/A
American Value Fund
</TABLE>

Additional  performance  information on the Fund may be found in its 1996 Annual
Report to Shareholders.

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

(1)      Reflects return for the one-year period ended October 31, 1996.

(2)      Reflects  return since  inception on February 3, 1995,  through October
         31, 1996.  Date of Fund inception for the Fund is the date of inception
         of the Fund's  predecessor fund. The Fund commenced  operations as part
         of the Trust on May 6, 1996.

(3)      Performance  for the Vista American Value Fund includes the performance
         of its  predecessor  fund for periods prior to the  consummation of the
         reorganization  of the  Hanover  American  Value  Fund  into the  Vista
         American Value Fund. Performance presented for the Fund is based on the
         historical  expenses and performance of a single class of shares of its
         predecessor fund and for the period from fund inception  through May 6,
         1996,  does not reflect the Fund's  distribution,  service and/or other
         expenses that an investor  would incur as a holder of such class of the
         Fund.

         4.       Advisory Fees, Sub-Advisory Fees and Other Expenses
                  ---------------------------------------------------

         The  total  advisory  fees  are  identical  between  the  Fund  and the
Acquiring Fund. Currently,  The Chase Manhattan Bank (as defined above, "Chase")
serves as  investment  adviser to the Fund  pursuant to an  Investment  Advisory
Agreement  between  the Fund and Chase  dated  May 6,  1996.  VDH  serves as the
sub-adviser to the Fund pursuant to an Investment  Subadvisory Agreement between
VDH and Chase  dated  May 6,  1996.  The Fund has  agreed to pay Chase an annual
advisory fee (accrued daily and paid monthly)  calculated at an annualized  rate
of 0.70% of the Fund's average daily net assets. Chase in turn has agreed to pay
VDH out of the advisory fees VDH's  sub-advisory  fees which is calculated at an
annualized rate of 0.35% of the Fund's average daily net assets.

         After the Sale,  VDH will serve as investment  adviser to the Acquiring
Fund pursuant to an Investment Advisory Agreement. The Acquiring Fund will agree
to pay VDH an annual advisory fee (accrued daily and paid monthly) calculated at
an annualized  rate of 0.70% of the Acquiring  Fund's  average daily net assets.
The Acquiring Fund does not have any investment sub-adviser.
                                      -15-
<PAGE>
         The expense  ratio of the  Acquiring  Fund  (which,  because of certain
voluntary  waivers by VDH, is  comprised  of only the  administrative  and other
operating  expenses  of the  Acquiring  Fund) is  expected  to be lower than the
expense ratio of the Fund for the balance of 1998 (1.05% for the Acquiring  Fund
as  compared  to 1.32% for the Fund).  After that  period and until at least the
year 2000,  VDH has agreed,  with respect to the  Acquiring  Fund, to waive fees
and/or  reimburse  expenses such that the expense  ratio of the  Acquiring  Fund
(based on estimated expenses for the current fiscal year) will be no higher than
the Fund's  expense ratio (based on expenses  incurred in the most recent fiscal
year, after giving effect to any waivers and/or reimbursements by Chase).

         For the period ended  October 31,  1996,  Chase was entitled to receive
advisory fees of $57,746 from the Fund,  of which,  all $57,746 of advisory fees
were waived by Chase.

         5.       Distribution and Shareholder Services
                  -------------------------------------

         Vista Fund  Distributors,  Inc., a subsidiary of The BISYS Group,  Inc.
(which is  unaffiliated  with Chase),  has served as  distributor  of the Fund's
shares since May 6, 1996.  First Fund  Distributors,  Inc.,  an affiliate of the
Acquiring Fund's administrator -- Investment Company Administration  Corporation
(which is not affiliated with either Chase, VDH or Putnam, Lovell) will serve as
distributor of the Acquiring Fund upon the effectiveness of the Acquiring Fund's
registration statement on Form N-1A.

         The Acquiring  Fund shares to be issued in the  Reorganization  will be
subject to an identical  sales charge  structure as that  currently in place for
the Fund. No sales charge is imposed by either the Fund or the Acquiring Fund on
reinvestment of dividends or capital gains distributions.

         6.       Distribution Plans
                  ------------------

         The Trust has  adopted a Rule  12b-1  distribution  plan for the Fund's
shares,  which provides for the payment of distribution  fees at annual rates of
up to 0.25% of the average  daily net assets  attributable  to the shares of the
Fund.  Payments  under the  distribution  plans shall be used to  compensate  or
reimburse the Fund's  distributor and  broker-dealers  for services provided and
expenses incurred in connection with the sale of the Fund's shares,  and are not
tied  to the  amount  of  actual  expenses  incurred.  Payments  may be  used to
compensate  broker-dealers  with trail or  maintenance  commissions at an annual
rate of up to 0.25% of the average  daily net asset value of shares  invested in
the Fund by customers of these broker-dealers.  Trail or maintenance commissions
are paid to  broker-dealers  beginning the 13th month  following the purchase of
shares by their  customers.  Promotional  activities  for the sale of the Fund's
shares will be conducted  generally by the Vista Family of Funds, and activities
intended to promote the Fund's shares may also benefit other Vista funds.

         The  Acquiring  Fund has also adopted a  distribution  plan pursuant to
Rule 12b-1 (the  "Acquiring  Fund Plan").  The Acquiring Fund Plan provides that
the Acquiring Fund may pay for  distribution  and related  expenses at an annual
rate of up to  0.25%  of the  Acquiring  Fund's  
                                      -16-
<PAGE>
average net assets to VDH as Distribution Coordinator.  Expenses permitted to be
paid by the Acquiring Fund under the Acquiring  Fund Plan include:  preparation,
printing and mailing of  prospectuses;  shareholder  reports such as semi-annual
and annual report,  performance  reports and  newsletters;  sales literature and
other promotional material to prospective  investors;  direct mail solicitation;
advertising;  public  relations;  compensation of sales  personnel;  advisors or
other third parties for the assistance  with respect to the  distribution of the
Acquiring Fund's shares;  payments to financial  intermediaries  for shareholder
support; administrative and accounting services with respect to the shareholders
of the Acquiring  Fund;  and such other expenses as may be approved from time to
time by the Board of Trustees of the AST Trust.

         7.       Administration,  Custody,  Fund Accounting and Transfer Agency
                  --------------------------------------------------------------
                  Services
                  --------

         Pursuant   to  an   Administration   Agreement   (the   "Administration
Agreement") between AST Trust and Investment Company Administration  Corporation
("ICAC"),  ICAC would act as  administrator  for AST Trust and  provide  various
administrative  services  including  (but  not  limited  to)  arranging  for the
maintenance  of certain books and records of the Acquiring  Fund,  preparing and
mailing  certain  documents in connection  with tax and disclosure  obligations,
preparing agendas and supporting  documentation for, and minutes of, meetings of
AST Trust Board of Trustees and meetings of shareholders  and  coordinating  all
relationships between the Acquiring Fund and its other service providers.

         The  administration  services  provided  to AST Trust  pursuant  to the
Administration  Agreement  are similar in scope to the  administration  services
provided to the Trust  pursuant to its existing  administration  agreement  with
Chase and its existing distribution and sub-administration  agreement with Vista
Fund Distributors, Inc.

         Pursuant to a Custody Agreement (the "Custody  Agreement")  between AST
Trust and Star Bank, N.A. ("Star Bank"), Star Bank would act as custodian of the
portfolio securities, cash and other property of the Acquiring Fund. Pursuant to
the  Trust's  existing  custody  agreement  with  Chase,   Chase  also  provides
accounting and certain  recordkeeping  services for the Trust's portfolios.  The
terms of the portions of the Custody  Agreement  relating to custodial  services
are similar to the terms of the Trust's existing custodian agreement with Chase.

         Pursuant to a Fund Accounting  Service  Agreement (the "Fund Accounting
Agreement")  between AST Trust and American Data  Services,  Inc.  ("ADS"),  ADS
would provide fund  accounting  services to the Acquiring  Fund.  Chase provides
such  services  to the  Trust  under the  Trust's  custody  agreement.  The fund
accounting  services  provided by ADS under the Fund  Accounting  Agreement  are
similar in scope to the fund  accounting  services  provided  by Chase under its
custody agreement with the Trust.

         Pursuant  to  a  Transfer  Agency   Agreement  (the  "Transfer   Agency
Agreement")  between AST Trust and ADS, ADS would act as the transfer  agent and
dividend  disbursing  agent for the Acquiring Fund. The services  provided under
the Transfer  Agency  Agreements are similar to those provided under the Trust's
existing transfer agency agreement.
                                      -17-
<PAGE>
         8.       Shareholder Servicing Agents
                  ----------------------------

         Both the Trust and AST Trust have  entered into  shareholder  servicing
agreements with certain  shareholder  servicing agents  (including Chase, in the
case of the Fund and VDH,  in the case of the  Acquiring  Fund)  under which the
shareholder  servicing agents have agreed to provide certain support services to
their  customers  who  beneficially  own shares of the  applicable  Fund.  These
services   include   assisting  with  purchase  and   redemption   transactions,
maintaining  shareholder  accounts and records,  furnishing customer statements,
transmitting  shareholder  reports and  communications  to  customers  and other
similar  shareholder  liaison  services.  For performing  these  services,  each
shareholder servicing agent receives an annual fee of up to 0.25% of the average
daily net assets of shares of the Fund or the  Acquiring  Fund,  as the case may
be, held by  investors  for whom the  shareholder  servicing  agent  maintains a
servicing relationship.  Shareholder servicing agents may subcontract with other
parties for the provision of shareholder support services.

         Under both the Acquiring Fund and the Fund's  arrangement,  shareholder
servicing  agents may offer  additional  services  to their  customers,  such as
pre-authorized  or systematic  purchase and redemption  plans.  Each shareholder
servicing  agent  may  establish  its  own  terms  and   conditions,   including
limitations  on the amounts of  subsequent  transactions,  with  respect to such
services.  Certain  shareholder  servicing  agents  may  (although  they are not
required by the Trusts to do so) credit to the accounts of their  customers from
whom they are already  receiving  other fees an amount not exceeding  such other
fees or the fees for their services as shareholder servicing agents.

         Chase  and/or Vista Fund  Distributors,  Inc. (in the case of the Fund)
and VDH and/or First Fund Distributors, Inc. (in the case of the Acquiring Fund)
may from time to time, at their own expense out of compensation retained by them
from the applicable  Fund or other sources  available to them,  make  additional
payments to certain selected dealers or other  shareholder  servicing agents for
performing  administrative services for their customers.  These services include
maintaining account records,  processing orders to purchase, redeem and exchange
Fund shares and  responding to certain  customer  inquiries.  The amount of such
compensation may be up to an additional 0.10% annually of the average net assets
of the Fund  attributable  to  shares  of the  Fund  held by  customers  of such
shareholder servicing agents. Such compensation does not represent an additional
expense to the Fund or its  shareholders,  since it will be paid by Chase and/or
Vista Fund  Distributors,  Inc.  (in the case of the Fund) and VDH and/or  First
Fund Distributors, Inc. (in the case of the Acquiring Fund).

         In the case of the Fund, for shareholders  that bank with Chase,  Chase
may  aggregate  investments  in the Vista Funds with balances held in Chase bank
accounts for purposes of  determining  eligibility  for certain bank  privileges
that are based on specified minimum balance requirements,  such as reduced or no
fees for certain banking services or preferred rates on loans and deposits. Such
benefits will no longer be available after the Reorganization.
                                      -18-
<PAGE>
         9.       Purchase Procedures
                  -------------------

         The Fund generally  requires a minimum initial investment of $2,500 for
regular  accounts or $1,000 for IRAs,  SEP-IRAs  and the  Systematic  Investment
Plan, and minimum subsequent investments of $100 or more. The Acquiring Fund has
identical minimum purchase requirements.

         The Fund's shares are purchased at the public offering price,  which is
based on the net asset  value next  determined  after the Vista  Service  Center
receives  a  shareholder's  order in proper  form.  In most  cases,  in order to
receive that day's public offering price,  the Vista Service Center must receive
a shareholder's  order in proper form before the close of regular trading on the
New York  Stock  Exchange.  If a  shareholder  buys  shares  through  his or her
investment  representative,  the  representative  must receive the shareholder's
order  before the close of regular  trading  on the New York Stock  Exchange  to
receive  that  day's  public  offering  price.  The  Acquiring  Fund  shares are
purchased using a similar method. To eliminate the need for safekeeping, neither
the Fund nor the Acquiring Fund will issue share certificates.

         Both Funds have automatic investment plans under which selected amounts
are  electronically  withdrawn  from  shareholders'  accounts with banks and are
applied to purchase shares of the Funds. Both Funds provide for three methods to
purchase  shares -- through an  investment  representative,  through  the Fund's
Distributor, and through the Systematic Investment Plan.
                                      -19-
<PAGE>
         10.      Comparative Summary of Investor Costs
                  -------------------------------------

         The  following  table  summarizes  the costs of  investing in the Fund,
based on expenses  incurred in the most recent fiscal year, and in the Acquiring
Fund, based on estimated expenses for the current fiscal year.

<TABLE>
<CAPTION>
                                                          Vista American      Van Deventer & Hoch
                                                            Value Fund        American Value Fund
                                                          --------------      -------------------
SHAREHOLDER TRANSACTION EXPENSES:
<S>                                                           <C>                   <C>
Maximum Sales Charge Imposed on Purchases (as a                None                  None
percentage of offering price)                              
Sales Charge Imposed on Dividend Reinvestments                 None                  None
Maximum Contingent Deferred Sales Charge                       None                  None
 Redemption Fees                                               None                  None
 Exchange Fees                                                 None                  None
                                                           
ANNUAL OPERATING EXPENSES:                                 
(as a percentage of average net assets)                    
 Investment Advisory Fee (after estimated waiver)             0.00%*                0.00%**
 12b-1 Fee (after estimated waiver)                           0.00%*                0.00%**
 Shareholder Servicing Fee (after estimated waiver)           0.00%*                0.00%**
 Other Expenses                                               1.32%*                1.05%**
Total Fund Operating Expenses (after fee waiver)              1.32%*                1.05%**
</TABLE>

*        Reflects  current waiver  arrangements to maintain Total Fund Operating
         Expenses  at the  levels  indicated  in the table  above.  Absent  such
         waivers, the Investment Advisory Fee, 12b-1 Fee, Shareholder  Servicing
         Fee and  Other  Expenses  would  be  0.70%,  0.25%,  0.25%  and  1.40%,
         respectively,  and  Total  Fund  Operating  Expenses  would  be  2.60%.
         According  to the  current  prospectus,  Chase has agreed to waive fees
         payable  to it and/or  reimburse  expenses  until May 6,  1998,  to the
         extent necessary to prevent  annualized  Total Fund Operating  Expenses
         from  exceeding  2.18% of average net assets  during such  period.  Van
         Deventer & Hoch, by reason of its separate fee waivers,  has maintained
         the Total Fund  Operating  Expenses at 1.32%.  The Vista American Value
         Fund  does not  have any  unamortized  organization  costs.  All of the
         organizational expenses for the Fund have been paid for by Chase and/or
         the Fund's former adviser during the course of a prior  reorganization.

**       Reflects  projected waiver arrangement to maintain Total Fund Operating
         Expenses  at the  levels  indicated  in the table  above.  Absent  such
         waivers, the Investment Advisory Fee, 12b-1 Fee, Shareholder  Servicing
         Fee and Other  Expenses  are  estimated to be 0.70%,  0.25%,  0.25% and
         1.05%, respectively,  and Total Fund Operating Expenses would be 2.25%.
         VDH has agreed to waive fees  payable to it and/or  reimburse  expenses
         for the balance of 1998, to the extent necessary to prevent  annualized
         Total Fund  Operating  Expenses  from  exceeding  1.05% of average  net
         assets  during such  period.  VDH has further  agreed to waive fees and
         reimburse  expenses following that period until at least the year 2000,
         to the extent  necessary to prevent the Acquiring  Fund's expense ratio
         from exceeding 1.32% during such additional period.
                                      -20-
<PAGE>
Example
- -------

         Assume,  hypothetically,  that each Fund's annual return is 5% and that
its operating  expenses are as set forth above,  an investor  buying $1,000 of a
Fund's and the  Acquiring  Fund's  shares  would have paid the  following  total
expenses upon redeeming such shares:

                                       1 Year    3 Years   5 Years    10 years
                                                                      
Vista American Value Fund3              $ 13      $ 42      $ 72        $159
                                                                      
Van Deventer & Hoch American Value      $ 11      $ 33      $ 58        $128
Fund                                                                

The above  example  is to show the effect of  expenses.  This  example  does not
represent  past or future  expenses or return.  Actual  expenses and returns may
vary.

         11.      Redemption and Exchange Procedures
                  ----------------------------------

         Shareholders  of both  Funds may redeem  their  shares at the net asset
value  next  determined  after  receipt  of a written  redemption  request  or a
telephone redemption order without the imposition of any fee or other charge.

         Each Fund may  involuntarily  redeem a shareholder's  shares if at such
time the aggregate net asset value of the shares in a  shareholder's  account is
less than $500 due to  redemptions  or if a  shareholder  purchase  through  the
Systematic  Investment  Plan and fail to meet the applicable  Fund's  investment
minimum  within a twelve month period.  In the event of any such  redemption,  a
shareholder will receive at least 60 days' notice prior to the redemption.

         The Fund's shareholders may currently exchange their shares for Class A
shares of certain other Vista funds at net asset value plus any applicable sales
charge beginning 15 days after purchase.  Shares of the Acquiring Fund, however,
may not be exchanged into shares of any Vista fund or of any other series of the
AST Trust.

         12.      Income Dividends, Capital Gains Distributions and Taxes
                  -------------------------------------------------------

         Each of the Fund and the Acquiring Fund distributes  substantially  all
of its net investment  income and net capital gains to  shareholders  each year.
Both Funds  currently  intend to distribute at least annually any net investment
income and any net  realized  capital  gains.  Both  Funds  also have  identical
distribution  options.  Shareholders  of each of the Acquiring Fund and the Fund
may choose from three  distribution  options:  (1) reinvest all distributions in
additional Fund shares without a sales charge;  (2) receive  distributions  from
net investment income in cash or by ACH to a pre-established  bank account while
reinvesting  capital gains  distributions  in additional  shares without a sales
charge; or (3) receive all distributions in cash or by ACH. Shareholders of each
of the Fund or the Acquiring Fund can change his or her  distribution  option by
notifying the transfer  agent in writing.  If a  shareholder  does not select an
option when the shareholder open his or her account,  all distributions  will be
reinvested.  All  distributions not paid in cash or by 
                                      -21-
<PAGE>
ACH will be reinvested in shares of the applicable Fund.  Shareholders will also
receive a statement  confirming  reinvestment  of  distributions  in  additional
applicable Fund shares promptly  following the quarter in which the reinvestment
occurs.

         Each Fund  intends  to  qualify  as a  separate  "regulated  investment
company"  under  Subchapter M of the Code for federal income tax purposes and to
meet all other requirements that are necessary for it (but not its shareholders)
to pay no federal taxes on income and capital gains paid to  shareholders in the
form of dividends. In order to accomplish this goal, each Fund must, among other
things,  distribute  substantially  all of its  ordinary  income and net capital
gains on a current basis and maintain a portfolio of investments which satisfies
certain diversification criteria.

         13.      Portfolio Transactions and Brokerage Commissions
                  ------------------------------------------------

         In the case of the Fund,  VDH is  responsible  for decisions to buy and
sell securities,  broker-dealer  selection,  and negotiation of commission rates
through its capacity as sub-adviser.  In placing orders for the Fund's portfolio
transactions,  VDH  will  use its  best  efforts  to seek to  execute  portfolio
transactions in a manner which, under the  circumstances,  result in total costs
or proceeds  being the most favorable to the Fund. In assessing the best overall
terms  available  for any  transaction,  VDH  considers  all  factors  it  deems
relevant,  including the breadth of the market in the security, the price of the
security,  the financial  condition  and  execution  capability of the broker or
dealer,  research  services  provided  to  VDH,  and the  reasonableness  of the
commissions,  if any,  both for the  specific  transaction  and on a  continuing
basis. VDH is not required to obtain the lowest commission or the best net price
for the Fund on any particular transaction,  and are not required to execute any
order in a fashion  either  preferential  to the Fund relative to other accounts
they manage or otherwise  materially  adverse to any other  accounts.  After the
Sale, VDH will manage the Acquiring Fund's  portfolio  transactions in a similar
manner..

         14.      Shareholders' Rights
                  --------------------

         The Trust is a  Massachusetts  business  trust.  Because  the Fund is a
series of the Trust,  its operations are governed by the Trust's  Declaration of
Trust and  By-laws and  applicable  Massachusetts  law.  AST Trust is a Delaware
business  trust.  Because  the  Acquiring  Fund is a series  of AST  Trust,  its
operations  are governed by AST Trust's  Agreement and  Declaration of Trust and
By-laws and applicable Delaware law.

         Under Delaware law,  trustees and  shareholders of a business trust are
generally  afforded by statute the same  limited  liability  as their  corporate
counterparts and are permitted liberal indemnifications. However, some states do
not  recognize  the  liability   limitation  provided  by  Delaware  law.  Under
Massachusetts law, shareholders of the Fund could, under certain  circumstances,
be held personally liable as partners for the obligations of the Trust. However,
the Trust's  Declaration of Trust  disclaims  shareholder  liability for acts or
obligations of the Trust and provides for  indemnification  and reimbursement of
expenses out of Trust property for any shareholder  held  personally  liable for
the  obligations  of the Trust.  The Trust's  Declaration of Trust also provides
that the Trust shall  maintain  appropriate  insurance  (for  example,  fidelity
                                      -22-
<PAGE>
bonding and errors and omissions insurance) for the protection of the Trust, its
shareholders, Trustees, officers employees and agents covering possible tort and
other liabilities.  Thus, the risk of a shareholder  incurring financial loss on
account of  shareholder  liability  is limited  to  circumstances  in which both
inadequate  insurance  existed  and the  Trust  itself  was  unable  to meet its
obligations.  AST Trust, however, as a Delaware business trust, may provide more
protection in this regard because of the clearer statutory  protection  afforded
to shareholders.

         The Funds  normally  will not hold meetings of  shareholders  except as
required under the 1940 Act and  Massachusetts  law (in the case of the Fund) or
Delaware law (in the case of the Acquiring Fund).  However, with respect to each
of the Fund and the Acquiring Fund, a meeting of shareholders shall be held upon
the written request of the holders of shares  representing  not less than 10% of
the outstanding  shares entitled to vote on the matters specified in the written
request.

         Shareholders   of  each  Fund  have  no   preemptive,   conversion   or
subscription rights. The shares of each Fund have non-cumulative  voting rights,
with each  shareholder  of that Fund entitled to one vote for each full share of
that  Fund  (and a  fractional  vote  for  each  fractional  share)  held in the
shareholder's  name on the  books  of that  Fund as of the  record  date for the
action in question. On any matter submitted to a vote of shareholders, shares of
each Fund will be voted by that Fund's shareholders individually when the matter
affects the specific interest of that Fund only, such as approval of that Fund's
investment management arrangements. The shares of all the Funds will be voted in
the  aggregate  on  other  matters,   such  as  the  election  of  trustees  and
ratification  of the Board of  Trustees'  selection  of the  Funds'  independent
accountants.

C.        RISK FACTORS

         The Acquiring  Fund's  portfolio,  like that of the Fund, is subject to
the  general  risks and  considerations  associated  with equity  investing.  In
addition,  some of the securities which both the Acquiring Fund and the Fund may
invest may be of smaller  companies.  The securities of smaller  companies often
trade less  frequently  and in more limited  volume,  and may be subject to more
abrupt or erratic price movements,  than securities of larger,  more established
companies.  Such companies may have limited product lines,  markets or financial
resources, or may depend on a limited management group.

D.       RECOMMENDATION OF THE BOARD OF TRUSTEES

         In response to the circumstances described above, the Board of Trustees
of the Trust,  after due  consideration,  has unanimously  approved the proposed
Reorganization,  subject to approval by shareholders. The Board of Trustees also
unanimously recommends that shareholders vote for the adoption of the Proposal.

         1.       The Legal Framework
                  -------------------
                                      -23-
<PAGE>
         The Trustees, after reviewing the terms of the proposed Reorganization,
concluded  the  proposed  Reorganization  to be in  the  best  interest  of  the
shareholders of the Fund. In addition,  because the proposed Reorganization,  if
consummated, would be made in connection with the Sale of VDH, the Trustees also
reviewed  the  terms  of the  proposed  Sale  and the  proposed  Reorganization,
including the terms of the investment  advisory  agreement between the Acquiring
Fund and VDH,  in the  context of Section 15 of the  Investment  Company  Act of
1940, as amended (the "1940 Act").

         Pursuant  to  Section  15 of the 1940  Act,  each  investment  advisory
agreement (including each investment subadvisory agreement) between the Fund and
its adviser or sub-adviser  terminates  automatically  upon its  assignment.  An
assignment  will occur if, among other events,  there is a sale of a controlling
interest  in  the  sub-investment  advisor.  The  sale  of The  Chase  Manhattan
Corporation's interest in VDH to Crestline,  therefore,  causes an assignment of
the existing  investment  subadvisory  agreement  and  triggered  its  automatic
termination.

         The Purchase Agreement commits both The Chase Manhattan Corporation and
Putnam, Lovell to comply with the requirements of Section 15(f) of the 1940 Act.
Section  15(f) of the 1940 Act allows an  investment  adviser  or an  affiliated
person of such investment adviser to receive any amount or benefit in connection
with a change of control of an investment  adviser provided  certain  conditions
are met.  These  conditions  require that: (i) for a period of three years after
the transaction,  at least 75 percent of the investment company's directors must
not be  "interested  persons"  (as  defined  in the 1940  Act) of the  successor
adviser or the  predecessor  adviser,  and (ii) an "unfair  burden"  must not be
imposed on the investment  company as a result of the transaction or any express
or implied terms, conditions,  or understandings  applicable thereto. An "unfair
burden"   includes  any  arrangement   during  the  two-year  period  after  the
transaction  whereby the investment adviser (or its predecessor or successor) or
any  interested  person of such  investment  adviser  receives or is entitled to
receive any compensation,  directly or indirectly from the investment company or
its security  holders  other than bona fide ordinary  compensation  as principal
underwriter of the investment  company or compensation  for bona fide investment
advisory or other services.

         In light of the  provisions of Section  15(f),  VDH has agreed to waive
fees and reimburse  expenses until at least the year 2000 for the Acquiring Fund
to the extent  necessary to prevent the expense ratio from  exceeding the Fund's
present  level  (1.32%).  In  addition,  VDH has agreed to waive fees  and/or to
reimburse  expenses for the balance of 1998, to the extent  necessary to prevent
the expense ratio for the  Acquiring  Fund from  exceeding  1.05% of average net
assets during such period.

         The proposed  Reorganization,  if approved by the Fund's  shareholders,
will close as soon as practicable  following the closing of the Sale, subject to
the  satisfaction  or  certain  conditions  thereto.   The  investment  advisory
agreement  between  the  Acquiring  Fund and VDH will  remain in  effect  for an
initial  term of up to two years and will  continue  in  effect  thereafter  for
successive  periods if and so long as such continuance is specifically  approved
annually by (a) the Board of Trustees  or (b) a majority  vote of the  Acquiring
Fund's  shareholders,  provided that in either 
                                      -24-
<PAGE>
event,  the  continuance  also is approved by a majority of the trustees who are
not  "interested  persons"  by vote cast in person at a meeting  called  for the
purpose of voting on such approval.

         2.       The Trustees' Considerations
                  ----------------------------

         The   transactions   contemplated   by  the   Sale   and  the   related
Reorganization  were  presented  to  the  Board  of  Trustees  of the  Fund  for
consideration  at its October 22, 1997 Board of Trustees  meeting.  The Board of
Trustees,  including a majority of the Trustees who are not  interested  persons
(the "independent Trustees") voted to approve the proposed  Reorganization.  The
independent Trustees retained their own counsel to assist them in evaluating the
transaction  and  the  various  proposals.   The  Board  of  Trustees  concluded
unanimously  that the Proposal set forth in this proxy  statement is in the best
interests of the Fund and its  shareholders and would not result in the dilution
of such shareholders' interests.

         In determining  whether to recommend  approval of the Reorganization to
shareholders  of the Fund,  the Board of  Trustees  (including  the  independent
Trustees,  with the advice and assistance of independent legal counsel), made an
inquiry into a number of matters and  considered  the following  factors,  among
others:   (i)  the   compatibility  of  investment   objectives,   policies  and
restrictions of the Fund and the Acquiring  Fund,  (ii) the  capabilities of VDH
and other  service  providers  to the  Acquiring  Fund,  (iii) the nature of the
Fund's existing shareholder base, (iv) expense ratios and available  information
regarding  the fees and  expenses  of the Fund,  the  Acquiring  Fund as well as
similar funds, (v) portfolio  transaction policies of the Fund and the Acquiring
Fund,  (vi) the terms and  conditions  of the  Reorganization  and  whether  the
Reorganization  would result in dilution of shareholder  interests,  (vii) costs
incurred  by the Fund and  Acquiring  Fund as a  result  of the  Reorganization,
(viii) tax consequences of the Reorganization and (ix) possible  alternatives to
the Reorganization.
                                      -25-
<PAGE>
         In reaching the decision to approve the Reorganization and to recommend
that the shareholders of the Fund vote to approve the Reorganization,  the Board
of Trustees, including the independent Trustees,  unanimously concluded that the
participation of the Fund in the  Reorganization is in the best interests of the
Fund's  shareholders and would not result in the dilution of such  shareholders'
interests.  Their  conclusion  was based on a number of factors,  including  the
following:

                  (1) The investment objective, policies and restrictions of the
         Fund and the Acquiring Fund will be identical.

                  (2)  VDH  will  continue  to  be  responsible   for  providing
         day-to-day   investment  management  services  to  the  Fund  following
         consummation of the  Reorganization,  which the Trustees  believe to be
         important to the Fund's existing shareholder base.

                  (3)  VDH  has  agreed  to  waive  fees  payable  to it  and/or
         reimburse  the  Acquiring  Fund for expenses in excess of fixed expense
         caps for a period of at least two years  from the  consummation  of the
         Reorganization.

                  (4)  Chase  and  VDH  have  agreed  that  they  and/or   their
         affiliates will pay all costs and expenses of the Reorganization.

E.       DISSENTERS' RIGHTS OF APPRAISAL

         Shareholders of the Fund who object to the proposed Reorganization will
not be entitled to any "dissenters'  rights" under  Massachusetts  law. However,
such  shareholders have the right at any time up to the Effective Date to redeem
shares of the Fund at net asset value or to  exchange  such shares for shares of
the other funds offered by the Trust without charge.  After the  Reorganization,
such  shareholders  will hold shares of the  Acquiring  Fund,  which may also be
redeemed at net asset value in accordance  with the procedures  described in the
Acquiring Fund's  Prospectus  dated [December 15, 1997],  subject to the forward
pricing requirements of Rule 22c-1 under the 1940 Act.

F.       FURTHER INFORMATION ABOUT THE FUND AND THE ACQUIRING FUND

         Further  information  about  the  Fund  is  contained  in  its  current
Prospectus  dated February 28, 1997 and the Statement of Additional  Information
dated  May 19,  1997,  which  are  incorporated  herein  by  reference.  Further
information  about the  Acquiring  Fund is  contained  in its  Prospectus  dated
[December 15, 1997], and the Statement of Additional Information dated [December
15, 1997].  Documents that relate to the Fund are available,  without charge, by
writing to the Vista Service Center at P.O. Box 419392, Kansas City, MO 64141 or
by calling (800)  34-VISTA.  Copies of the Fund's  prospectus  and the Acquiring
Fund's Prospectus also accompany this Combined Proxy Statement and Prospectus.
                                      -26-
<PAGE>
         The  Trust  is  subject  to  the  informational   requirements  of  the
Securities  and  Exchange  Act of  1934  and the  1940  Act,  and in  accordance
therewith  files reports,  proxy materials and other  information  with the SEC.
Such reports,  proxy materials and other information can be inspected and copied
at the Public  Reference Room  maintained by the SEC at 450 Fifth Street,  N.W.,
Washington,  D.C. 20549,  and at the SEC's regional  offices at 500 West Madison
Street,  Suite 1400,  Chicago,  Illinois  60661 and 7 World Trade Center,  Suite
1300,  New York,  New York 10048.  Copies of such  materials  can be obtained at
prescribed  rates from the Public Reference  Branch,  Office of Consumer Affairs
and Information Services, of the SEC, Washington, D.C. 20549.

G.       VOTE REQUIRED

         Approval of the proposed  Reorganization  requires the affirmative vote
of the  holders  of a  majority  of  the  total  number  of  the  Fund's  shares
outstanding on the Record Date. If the  shareholders  of the Fund do not approve
the proposed Reorganization, or if the Reorganization is not consummated for any
other  reason,  then the Board of Trustees  will take such further  action as it
deems to be in the best  interest  of the Fund and its  shareholders  subject to
approval by the shareholders of the Fund if required by applicable law.
                                      -27-
<PAGE>
                            III. MISCELLANEOUS ISSUES

A.       OTHER BUSINESS

         The Board of  Trustees  of the Trust  knows of no other  business to be
brought  before the  Meeting.  However,  if any other  matters  come  before the
Meeting,  it is the Board of  Trustees's  intention  that  proxies  which do not
contain  specific  restrictions to the contrary will be voted on such matters in
accordance with the judgment of the persons named in the enclosed form of proxy.

B.       NEXT MEETING OF SHAREHOLDERS

         The Trust is not  required  and does not intend to hold annual or other
periodic  meetings  of  shareholders  except as required by the 1940 Act. If the
Reorganization  is not consummated,  the next meeting of the shareholders of the
Fund will be held at such time as the Board of Trustees may determine or at such
time  as may be  legally  required.  Any  shareholder  proposal  intended  to be
presented  at such  meeting  must be  received  by the Trust at its  office at a
reasonable time before the meeting,  as determined by the Board of Trustees,  to
be included in the Trust's proxy  statement  and form of proxy  relating to such
meeting, and must satisfy all other legal requirements.

C.       LEGAL MATTERS

         Certain legal matters in connection  with the issuance of the Acquiring
Fund  Shares  will be passed  upon for the Trust by Paul,  Hastings,  Janofsky &
Walker LLP.

D.       EXPERTS

         The financial  statements of the Vista American Value Fund incorporated
in this  Prospectus  by reference to the Annual Report to  Shareholders  for the
year ended October 31, 1996, have been so incorporated in reliance on the report
of Price Waterhouse LLP, independent accountants, given on the authority of said
firm as experts in auditing and accounting.

              PLEASE COMPLETE, DATE AND SIGN THE ENCLOSED PROXY AND
                   RETURN IT PROMPTLY IN THE ENCLOSED ENVELOPE
                                      -28-
<PAGE>






                                    EXHIBIT A

                      Agreement and Plan of Reorganization

                                      -29-
<PAGE>
                      AGREEMENT AND PLAN OF REORGANIZATION



                  THIS AGREEMENT AND PLAN OF REORGANIZATION  (this  "Agreement")
is made as of this ___th day of December,  1997, by and between  Advisors Series
Trust ("AST"),  a Delaware  business trust,  for itself and on behalf of the Van
Deventer & Hoch American Value Fund (the "Acquiring Fund"), a series of AST, and
Mutual Fund Group ("MFG"),  a Massachusetts  business  trust,  for itself and on
behalf of the Vista American Value Fund (the "Acquired  Fund"), a series of MFG.
Other than the Acquiring  Fund and the Acquired Fund, no other series of AST and
MFG, respectively, is a party to this Agreement.

                  In accordance  with the terms and conditions set forth in this
Agreement,  the parties  desire that all of the assets of the  Acquired  Fund be
transferred  to the  Acquiring  Fund,  and that the  Acquiring  Fund  assume the
Assumed  Liabilities  (as defined in  paragraph  1.3) of the Acquired  Fund,  in
exchange for shares of the Acquiring Fund  ("Acquiring  Fund Shares"),  and that
such  Acquiring  Fund Shares be distributed  immediately  after the Closing,  as
defined  in  this  Agreement,  by  the  Acquired  Fund  to its  shareholders  in
liquidation  of the  Acquired  Fund.  This  Agreement  is  intended to be and is
adopted  as a plan of  reorganization  and  liquidation  within  the  meaning of
Section  368(a)(1)(D)  of the  Internal  Revenue  Code of 1986,  as amended (the
"Code").

                  In  consideration  of the  premises and of the  covenants  and
agreements  hereinafter set forth,  the parties hereto,  intending to be legally
bound hereby, covenant and agree as follows:


1.       REORGANIZATION OF ACQUIRED FUND

         1.1 Subject to the terms and  conditions  herein set forth,  and on the
basis of the representations and warranties  contained herein, the Acquired Fund
shall  assign,  deliver  and  otherwise  transfer  its  assets  as set  forth in
paragraph 1.2 (the "Fund  Assets") to the Acquiring  Fund and the Acquiring Fund
shall assume the Assumed Liabilities. The Acquiring Fund shall, as consideration
therefor,  on the Closing  Date (as defined in  paragraph  3.1),  deliver to the
Acquired Fund full and  fractional  Acquiring  Fund Shares,  the number of which
shall be determined  by dividing (a) the value of the Acquired Fund Assets,  net
of the Acquired Fund's Assumed Liabilities, computed in the manner and as of the
time and date set forth in  paragraph  2.1,  by (b) the net  asset  value of one
share of the  Acquiring  Fund computed in the manner and as of the time and date
set forth in paragraph  2.2. Such transfer,  delivery and assumption  shall take
place at the  closing  provided  for in  paragraph  3.1  (hereinafter  sometimes
referred to as the "Closing").  Immediately  following the Closing, the Acquired
Fund shall  distribute  the  Acquiring  Fund Shares to the  shareholders  of the
Acquired Fund in liquidation of the Acquired
                                       1
<PAGE>
Fund as provided in paragraph  1.4 hereof.  Such  transactions  are  hereinafter
sometimes collectively referred to as the "Reorganization."

         1.2 (a) With  respect  to the  Acquired  Fund,  the Fund  Assets  shall
consist of all property and assets of any nature whatsoever,  including, without
limitation,  all cash,  cash  equivalents,  securities,  claims and  receivables
(including  dividend and interest  receivables)  owned by the Acquired Fund, and
any  prepaid  expenses  shown as an asset on the  Acquired  Fund's  books on the
Closing Date.

                  (b) Before the Closing  Date,  the Acquired  Fund will provide
the  Acquiring  Fund  with  information  regarding  its  assets  and  its  known
liabilities.  The Acquired Fund reserves the right to sell or otherwise  dispose
of any of the  securities  or other  assets  shown  on the list of the  Acquired
Fund's Assets prior to the Closing Date but will not, without the prior approval
of the Acquiring Fund,  acquire any additional  securities other than securities
which the Acquiring Fund is permitted to purchase in accordance  with its stated
investment objective and policies.

         1.3 The  Acquired  Fund will  endeavor  to  discharge  all of its known
liabilities and  obligations  prior to the Closing Date. The Acquiring Fund will
assume all liabilities and  obligations  reflected on an unaudited  statement of
assets and liabilities of the Acquired Fund prepared by the Administrator of the
Acquired Fund as of the Applicable Valuation Date (as defined in paragraph 2.1),
in accordance with generally accepted accounting principles consistently applied
from the prior audited period ("Stated  Liabilities")  as well as all contingent
liabilities  and  obligations  of the Acquired  Fund,  whether known or unknown,
accrued or  unaccrued  (such  liabilities  and  obligations,  together  with the
Acquired  Fund's Stated  Liabilities,  being  referred to herein as the "Assumed
Liabilities").  The Acquiring Fund shall assume only the Assumed  Liabilities of
the Acquired Fund, and no other liabilities or obligations,  whether absolute or
contingent, known or unknown, accrued or unaccrued.

         1.4  Immediately   following  the  Closing,   the  Acquired  Fund  will
distribute the Acquiring  Fund Shares  received by the Acquired Fund pursuant to
paragraph 1.1 pro rata to its shareholders of record  determined as of the close
of  business  on the  Closing  Date  ("Acquired  Fund  Investors")  in  complete
liquidation of the Acquired Fund. Such  distribution  will be accomplished by an
instruction,  signed by an appropriate officer of AST, to transfer the Acquiring
Fund Shares then  credited to the  Acquired  Fund's  account on the books of the
Acquiring Fund to open accounts on the books of the Acquiring  Fund  established
and maintained by the Acquiring  Fund's transfer agent in the names of record of
the Acquired Fund Investors and  representing  the respective pro rata number of
shares of the Acquiring  Fund due such Acquired  Fund  Investor.  All issued and
outstanding  shares  of  the  Acquired  Fund  will  be  canceled  simultaneously
therewith on the Acquired Fund's books, and any outstanding  share  certificates
representing  interests in the Acquired  Fund will  represent  only the right to
receive such number of Acquiring  Fund Shares after the Closing as determined in
accordance with paragraph 1.1.
                                       2
<PAGE>
         1.5 If any request  shall be made for a change of the  registration  of
shares  of the  Acquiring  Fund  to  another  person  from  the  account  of the
stockholder  in which  name the  shares  are  registered  in the  records of the
Acquired Fund, it shall be a condition of such registration of shares that there
be furnished to the Acquiring Fund an instrument of transfer properly  endorsed,
accompanied by appropriate signature guarantees and otherwise in proper form for
transfer  and that the  person  requesting  such  registration  shall pay to the
Acquiring  Fund  any  transfer  or  other  taxes  required  by  reason  of  such
registration  or establish to the reasonable  satisfaction of the Acquiring Fund
that such tax has been paid or is not applicable.

         1.6  Following  the  transfer  of  assets by the  Acquired  Fund to the
Acquiring Fund, the assumption of the Assumed Liabilities by the Acquiring Fund,
and the  distribution by the Acquired Fund of the Acquiring Fund Shares received
by it pursuant to paragraph  1.4, the  Administrator  of the Acquired Fund shall
terminate the  qualification,  classification  and  registration of the Acquired
Fund with all  appropriate  federal and state  agencies.  Any reporting or other
responsibility  of the Acquired Fund is and shall remain the  responsibility  of
the Acquired  Fund and its  Administrator  up to and including the date on which
the Acquired Fund is terminated  and  deregistered,  subject to any reporting or
other obligations described in paragraph 4.9.


2.       VALUATION

         2.1 The value of the Acquired  Fund's Assets shall be the value of such
assets  computed  as of the  time at which  its net  asset  value is  calculated
pursuant  to the  valuation  procedures  set forth in the  Acquired  Fund's then
current Prospectus and Statement of Additional  Information (which are identical
to the  valuation  procedures  to be  utilized  by the  Acquiring  Fund)  on the
business day  immediately  preceding  the Closing  Date, or at such time on such
earlier  or later  date as may  mutually  be agreed  upon in  writing  among the
parties hereto (such time and date being herein called the "Applicable Valuation
Date").

         2.2 The net asset  value of each share of the  Acquiring  Fund shall be
the net asset value per share computed on the Applicable  Valuation Date,  using
the market  valuation  procedures set forth in the Acquiring Fund's then current
Prospectus and Statement of Additional Information.

         2.3 All  computations of value  contemplated by this Article 2 shall be
made by the Acquired Fund's Custodian in accordance with its regular practice as
pricing agent. The Acquired Fund shall cause its Administrator to deliver a copy
of its valuation report to the Acquiring Fund at the Closing.  In the event that
the value of a security  in the  Acquired  Fund's  portfolio  as  determined  in
accordance  with the valuation  procedures of the Acquired Fund differs from the
value of such security as determined in accordance with the valuation procedures
of the  Acquiring  Fund,  the  Acquired  Fund's  Custodian  shall  make a  final
determination as to the value 
                                       3
<PAGE>
of such security.


3.       CLOSING(S) AND CLOSING DATE

         3.1 The Closing  for the  Reorganization  shall occur on  ____________,
1998 and/or on such other  date(s) as may be mutually  agreed upon in writing by
the parties hereto (each, a "Closing Date"). The Closing(s) shall be held at the
offices  of  ____________________  or at  such  other  location  as is  mutually
agreeable to the parties hereto.  All acts taking place at the Closing(s)  shall
be deemed to take  place  simultaneously  as of 10:00  a.m.,  local  time on the
Closing Date unless otherwise provided.

         3.2 The  Acquiring  Fund's  custodian  shall  deliver at the  Closing a
certificate of an authorized officer stating that: (a) the Fund Assets have been
delivered in proper form to the  Acquiring  Fund on the Closing Date and (b) all
necessary  taxes  including  all  applicable  federal and state  stock  transfer
stamps,  if any,  have been paid, or provision for payment shall have been made,
by the Acquired Fund in conjunction with the delivery of portfolio securities.

         3.3 Notwithstanding  anything herein to the contrary, in the event that
on the Applicable Valuation Date (a) the New York Stock Exchange shall be closed
to  trading  or  trading  thereon  shall be  restricted  or (b)  trading  or the
reporting of trading on such  exchange or elsewhere  shall be disrupted so that,
in the judgment of either AST or MFG, accurate appraisal of the value of the net
assets  of the  Acquiring  Fund  or the  Acquired  Fund  is  impracticable,  the
Applicable  Valuation Date shall be postponed until the first business day after
the day when  trading  shall  have been fully  resumed  without  restriction  or
disruption and reporting shall have been restored.


4.       COVENANTS WITH RESPECT TO THE ACQUIRING FUND AND THE ACQUIRED FUND

         4.1 With  respect to the Acquired  Fund,  MFG has called or will call a
meeting of Acquired Fund  shareholders  to consider and act upon this  Agreement
and to take all other actions reasonably necessary to obtain the approval of the
transactions  contemplated  herein,  including  approval for the Acquired Fund's
liquidating  distribution of Acquiring Fund Shares contemplated  hereby, and for
MFG  to  terminate  the  Acquired  Fund's   qualification,   classification  and
registration  if requisite  approvals  are obtained with respect to the Acquired
Fund, MFG, on behalf of the Acquired Fund,  shall prepare the notice of meeting,
form of proxy and combined proxy statement and prospectus (collectively,  "Proxy
Materials") to be used in connection with such meeting.

         4.2 MFG, on behalf of the Acquired  Fund,  covenants that the Acquiring
Fund Shares 
                                       4
<PAGE>
to be issued  hereunder  are not being  acquired  for the  purpose of making any
distribution thereof, other than in accordance with the terms of this Agreement.

         4.3 MFG, on behalf of the Acquired Fund, will assist the Acquiring Fund
in  obtaining  such  information  as  the  Acquiring  Fund  reasonably  requests
concerning the beneficial ownership of shares of the Acquired Fund.

         4.4  Subject to the  provisions  hereof,  AST, on its own behalf and on
behalf of the  Acquiring  Fund and MFG,  on its own  behalf and on behalf of the
Acquired Fund, will take, or cause to be taken, all actions, and do, or cause to
be done, all things reasonably necessary,  proper or advisable to consummate and
make effective the transactions contemplated herein.

         4.5 MFG, on behalf of the Acquired Fund, shall furnish to the Acquiring
Fund on the Closing Date, a final  statement of the total amount of the Acquired
Fund's assets and liabilities as of the Closing Date.

         4.6 AST, on behalf of the Acquiring  Fund,  has prepared and filed,  or
will prepare and file,  with the Securities and Exchange  Commission (the "SEC")
an amendment to its registration statement on Form N-1A under the Securities Act
of 1933, as amended (the "1933 Act") and the Investment  Company Act of 1940, as
amended (the "1940 Act"), relating to the Acquiring Fund Shares.

         4.7 AST, on behalf of the Acquiring  Fund,  has prepared and filed,  or
will prepare and file, with the SEC a registration  statement on Form N-14 under
the 1933 Act,  relating to the  Acquiring  Fund  Shares (the "N-14  Registration
Statement")  which shall include Proxy  Materials to be used in connection  with
the  shareholders'  meeting.  Each of MFG  and AST  have  cooperated  and  shall
continue to cooperate  with the other,  and have furnished and shall continue to
furnish the other with the information relating to itself, and respectively, the
Acquired  Fund and the  Acquiring  Fund,  that is required by the 1933 Act,  the
Securities  Exchange Act of 1934, as amended (the "1934 Act"),  the 1940 Act and
the rules and regulations  thereunder,  to be included in the N-14  Registration
Statement.

         4.8 As soon after the Closing Date as is reasonably  practicable,  MFG,
on behalf of the Acquired Fund: (a) shall prepare and file all federal and other
tax returns and reports of the  Acquired  Fund  required by law to be filed with
respect to all periods ending on or before the Closing Date but not  theretofore
filed and (b) shall pay all federal and other taxes shown as due thereon  and/or
all federal and other taxes that were unpaid as of the Closing Date.

         4.9  Following  the  transfer  of  assets by the  Acquired  Fund to the
Acquiring  Fund and the  assumption of the Assumed  Liabilities  of the Acquired
Fund in exchange for Acquiring Fund Shares as contemplated herein, MFG will file
any final  regulatory  reports,  including but not limited to any Form N-SAR and
Rule 24f-2 filings with respect to the Acquired Fund, after the 
                                       5
<PAGE>
Closing Date but prior to the date of any  applicable  statutory  or  regulatory
deadlines  and also will take all other  steps as are  necessary  and  proper to
effect the  termination or  declassification  of the Acquired Fund in accordance
with  the  laws  of the  Commonwealth  of  Massachusetts  and  other  applicable
requirements.

         4.10 The  investment  objective and policies of the Acquiring Fund will
conform with the descriptions  thereof  contained in the preliminary  Prospectus
and  Statement of Additional  Information  presented to the Board of Trustees of
MFG (the "MFG Trustees").


5.       REPRESENTATIONS AND WARRANTIES

         5.1 AST, on behalf of the Acquiring  Fund,  represents  and warrants to
MFG and the Acquired Fund as follows:

                  (a)  AST  was  duly  created  pursuant  to its  Agreement  and
Declaration of Trust by its Trustees (the "AST Trustees") then in office for the
purpose of acting as a management  investment  company under the 1940 Act and is
validly  existing and in good standing  under the laws of the State of Delaware.
The Acquiring Fund is a validly  existing series of AST  representing  interests
therein under the laws of Delaware and the Agreement  and  Declaration  of Trust
directs the AST Trustees to manage the affairs of AST and grants them all powers
necessary or desirable to carry out such responsibility, including administering
AST's  business as  currently  conducted  by AST and as described in the current
Prospectuses of AST. AST is registered as an investment company classified as an
open-end  management  company,  under the 1940 Act and its registration with the
SEC as an investment  company is in full force and effect. AST has all necessary
federal,  state and local  authorization to own all of its properties and assets
and to carry on its business as now being conducted;

                  (b) The N-14 Registration  Statement conforms or will conform,
at all times up to and including  the Closing Date, in all material  respects to
the applicable requirements of the 1933 Act and the 1940 Act and the regulations
thereunder  and do not  include or will not include  any untrue  statement  of a
material fact or omit to state any material  fact required to be stated  therein
or necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading;

                  (c)  The  Acquiring  Fund  is not in  violation  of,  and  the
execution,  delivery and  performance of this Agreement by AST for itself and on
behalf of the Acquiring  Fund does not and will not (i) violate AST's  Agreement
and Declaration of Trust or By-Laws, or (ii) result in a breach or violation of,
or constitute a default under, any material agreement or material instrument, to
which AST is a party or by which its properties or assets are bound;

                  (d) Except as previously  disclosed in writing to the Acquired
Fund, no 
                                       6
<PAGE>
litigation or administrative  proceeding or investigation of or before any court
or governmental  body is presently  pending or, to AST's  knowledge,  threatened
against AST or its  business,  the  Acquiring  Fund or any of its  properties or
assets,  which, if adversely  determined,  would materially and adversely affect
AST or  the  Acquiring  Fund's  financial  condition  or the  conduct  of  their
business, AST knows of no facts that might form the basis for the institution of
any such proceeding or  investigation,  and the Acquiring Fund is not a party to
or subject to the  provisions  of any order,  decree or judgment of any court or
governmental  body which  materially  and  adversely  affects,  or is reasonably
likely to  materially  and  adversely  affect,  its  business  or its ability to
consummate the transactions contemplated herein;

                  (e) All issued and outstanding shares,  including shares to be
issued in connection with the Reorganization,  of the Acquiring Fund will, as of
the Closing Date, be duly authorized and validly issued and  outstanding,  fully
paid and  nonassessable,  the shares of each class of the Acquiring  Fund issued
and  outstanding  prior to the Closing Date were offered and sold in  compliance
with the applicable registration  requirements,  or exemptions therefrom, of the
1933  Act,  and all  applicable  state  securities  laws,  and  the  regulations
thereunder,  and the  Acquiring  Fund  does not  have  outstanding  any  option,
warrants or other rights to  subscribe  for or purchase any of its shares nor is
there outstanding any security convertible into any of its shares;

                  (f) The execution,  delivery and performance of this Agreement
on behalf of the  Acquiring  Fund  will have been duly  authorized  prior to the
Closing  Date by all  necessary  action on the part of AST, the AST Trustees and
the  Acquiring  Fund,  and this  Agreement  will  constitute a valid and binding
obligation  of AST and the Acquiring  Fund  enforceable  in accordance  with its
terms,  subject as to enforcement,  to bankruptcy,  insolvency,  reorganization,
arrangement, moratorium and other similar laws of general applicability relating
to or affecting creditors, rights and to general equity principles;

                  (g) From the effective date of the N-14 Registration Statement
through the time of the meeting of the  Acquired  Fund  shareholders  and on the
Closing  Date,  any  written  information  furnished  by AST for use in the N-14
Registration  Statement or any other  materials  provided in connection with the
Reorganization  does not and will not contain any untrue statement of a material
fact or omit to state a material fact necessary to make the information provided
not misleading; and

                  (h) No governmental  consents,  approvals,  authorizations  or
filings are required  under the 1933 Act, the 1934 Act, the 1940 Act or Delaware
law for the execution of this  Agreement by AST, for itself and on behalf of the
Acquiring  Fund,  or the  performance  of the Agreement by AST for itself and on
behalf  of  the   Acquiring   Fund,   except  for  such   consents,   approvals,
authorizations  and filings as have been made or  received,  and except for such
consents, approvals, authorizations and filings as may be required subsequent to
the Closing Date.
                                       7
<PAGE>
                  (i)  Each of (1) of the  preliminary  prospectus  (in the form
sent to  shareholders  of the  Fund) and  preliminary  Statement  of  Additional
Information (in the form made available to shareholders of the Fund) of AST with
respect to the Acquiring Fund, and included in AST's  registration  statement on
Form N-1A as filed with the Commission,  (2) the final  prospectus and Statement
of  Additional  Information  of AST with respect to the  Acquiring  Fund,  to be
included  in  AST's  registration  statement  on Form  N-1A as  filed  with  the
Commission,  and (3) any  registration  statement on Form N-1A of AST filed with
the  Commission  in  connection  with this  Reorganization,  will  comply in all
material  respects  with the  requirements  of the 1933 Act and the 1940 Act and
will not  contain  an untrue  statement  of a  material  fact or omit to state a
material  fact  necessary  to make  the  statements  therein,  in  light  of the
circumstances under which they were made, not misleading.

         5.2 MFG, on behalf of the Acquired Fund, represents and warrants to AST
and the Acquiring Fund as follows:

                  (a) MFG was duly created  pursuant to its Declaration of Trust
by the MFG  Trustees  then in office for the  purpose of acting as a  management
investment  company  under  the 1940  Act and is  validly  existing  and in good
standing  under  the  laws  of  the  Commonwealth  of  Massachusetts,   and  the
Declaration  of Trust  directs the MFG Trustees to manage the affairs of MFG and
grants them all powers necessary or desirable to carry out such  responsibility,
including  administering  MFG's  business as  currently  conducted by MFG and as
described in the current Prospectuses of MFG. MFG is registered as an investment
company classified as an open-end management company, under the 1940 Act and its
registration with the SEC as an investment company is in full force and effect;

                  (b) All of the issued and  outstanding  shares of the Acquired
Fund have been  offered and sold in  compliance  in all material  respects  with
applicable registration  requirements of the 1933 Act and state securities laws;
all issued and outstanding shares of each class of the Acquired Fund are, and on
the Closing Date will be, duly  authorized and validly  issued and  outstanding,
and  fully  paid  and  non-assessable,  and the  Acquired  Fund  does  not  have
outstanding  any options,  warrants or other rights to subscribe for or purchase
any of its shares, nor is there outstanding any security convertible into any of
its shares;

                  (c)  The  Acquired  Fund  is  not in  violation  of,  and  the
execution,  delivery and  performance of this Agreement by MFG for itself and on
behalf of the Acquired Fund does not and will not (i) violate MFG's  Declaration
of Trust or By-Laws, or (ii) result in a breach or violation of, or constitute a
default under, any material  agreement or material  instrument to which MFG is a
party or by its properties or assets are bound;

                  (d) Except as previously disclosed in writing to the Acquiring
Fund, no litigation or  administrative  proceeding or investigation of or before
any court or  governmental  body is  presently  pending or, to MFG's  knowledge,
threatened  against the Acquired Fund or any 
                                       8
<PAGE>
of its properties or assets which, if adversely determined, would materially and
adversely affect the Acquired Fund's  financial  condition or the conduct of its
business, MFG knows of no facts that might form the basis for the institution of
any such proceeding or investigation, and the Acquired Fund is not a party to or
subject to the  provisions  of any  order,  decree or  judgment  of any court or
governmental  body that  materially  and adversely  affects,  or is,  reasonably
likely to  materially  and  adversely  affect,  its  business  or its ability to
consummate the transactions contemplated herein;

                  (e) The  Statement of Assets and  Liabilities,  Statements  of
Operations  and  Statements  of Changes in Net Assets of the Acquired Fund as of
and for the period  ended  October 31,  1996,  audited by Price  Waterhouse  LLP
(copies of which have been or will be  furnished to the  Acquiring  Fund) fairly
present, in all material respects, the Acquired Fund's financial condition as of
such date and its  results of  operations  for such  period in  accordance  with
generally accepted accounting  principles  consistently  applied, and as of such
date there were no  liabilities  of the Acquired Fund  (contingent or otherwise)
known to MFG that were not  disclosed  therein  but that would be required to be
disclosed therein in accordance with generally accepted accounting principles;

                  (f)  Since  the  date of the  most  recent  audited  financial
statements,  there has not been any  material  adverse  change  in the  Acquired
Fund's financial condition,  assets, liabilities or business, other than changes
occurring in the ordinary course of business,  or any incurrence by the Acquired
Fund of indebtedness maturing more than one year from the date such indebtedness
was  incurred,  except as otherwise  disclosed in writing to and accepted by the
Acquiring   Fund,   prior  to  the  Closing  Date  (for  the  purposes  of  this
subparagraph, neither a decline in the Acquired Fund's net asset value per share
nor a decrease in the Acquired Fund's size due to redemptions shall be deemed to
constitute a material adverse change);

                  (g) All  federal  and other tax returns and reports of MFG and
the  Acquired  Fund  required by law to be filed on or before the  Closing  Date
shall have been filed, and all taxes owed by MFG or the Acquired Fund shall have
been paid so far as due, and to the best of MFG's  knowledge,  no such return is
currently  under audit and no  assessment  has been asserted with respect to any
such return;

                  (h) For each full and partial  taxable year from its inception
through  the  Closing  Date,  the  Acquired  Fund has  qualified  as a  separate
regulated  investment  company  under the Code and has taken all  necessary  and
required actions to maintain such status;

                  (i) At the Closing Date,  the Acquired Fund will have good and
marketable  title to the Fund  Assets and full  right,  power and  authority  to
assign,  deliver and  otherwise  transfer such Fund Assets  hereunder,  and upon
delivery and payment for such Fund Assets as contemplated  herein, the Acquiring
Fund will acquire good and marketable title thereto,  subject to no restrictions
on the ownership or transfer thereof other than such restrictions as might arise
                                       9
<PAGE>
under the 1933 Act;

                  (j) The execution,  delivery and performance of this Agreement
on behalf of the  Acquired  Fund  will  have been duly  authorized  prior to the
Closing  Date by all  necessary  action on the part of MFG, the MFG Trustees and
the  Acquired  Fund,  and this  Agreement  will  constitute  a valid and binding
obligation  of MFG and the Acquired  Fund  enforceable  in  accordance  with its
terms,  subject as to enforcement,  to bankruptcy,  insolvency,  reorganization,
arrangement, moratorium and other similar laws of general applicability relating
to or affecting creditors, rights and to general equity principles;

                  (k)  From  the  effective   date  of  the  N-14   Registration
Statement,  through the time of the meeting of the Acquired Fund Investors,  and
on the  Closing  Date,  the Proxy  Materials:  (i) will  comply in all  material
respects  with the  applicable  provisions of the 1933 Act, the 1934 Act and the
1940 Act and the  regulations  thereunder  and (ii) do not  contain  any  untrue
statement  of a material  fact or omit to state a material  fact  required to be
stated therein or necessary to make the statements  therein not misleading,  and
as of such dates and times, any written information  furnished by MFG, on behalf
of the Acquired Fund, for use in the N-14 Registration Statement or in any other
manner that may be necessary in connection  with the  transactions  contemplated
hereby does not contain any untrue statement of a material fact or omit to state
a material  fact  necessary to make the  information  provided  not  misleading;
provided, that the representations and warranties made by MFG in this subsection
shall  not  apply to  statements  in or  omissions  from  the N-14  Registration
Statement made in reliance upon and in conformity with  information  provided by
AST for use therein; and

                  (l) No governmental  consents,  approvals,  authorizations  or
filings  are  required  under  the  1933  Act,  the  1934  Act,  the 1940 Act or
Massachusetts  law for the execution of this Agreement by MFG, for itself and on
behalf of the Acquired  Fund,  or the  performance  of the  Agreement by MFG for
itself and on behalf of the Acquired Fund, except for such consents,  approvals,
authorizations  and filings as have been made or  received,  and except for such
consents, approvals, authorizations and filings as may be required subsequent to
the Closing Date.


6.       CONDITIONS PRECEDENT TO OBLIGATIONS OF ACQUIRED FUND

         The obligations of MFG to consummate the Reorganization with respect to
the Acquired Fund shall be subject to the  performance by AST, for itself and on
behalf of the  Acquiring  Fund,  of all the  obligations  to be  performed by it
hereunder on or before the Closing Date and, in addition thereto,  the following
conditions with respect to the Acquiring Fund:

         6.1 All representations and warranties of AST contained herein shall be
true and correct in all material  respects as of the date hereof and,  except as
they may be affected by the 
                                       10
<PAGE>
transactions contemplated herein, as of the Closing Date with the same force and
effect as if made on and as of the Closing Date.

         6.2 AST, on behalf of the Acquiring  Fund,  shall have delivered to the
Acquired Fund at the Closing a  certificate  executed on behalf of the Acquiring
Fund by AST's President,  Secretary or Assistant Secretary in form and substance
reasonably  satisfactory  to the Acquired Fund and dated as of the Closing Date,
to the effect that,  to the best of such  officer's  knowledge  and belief,  the
factual representations and warranties of AST with respect to the Acquiring Fund
made  herein are true and  correct  in all  material  respects  at and as of the
Closing Date,  except as they may be affected by the  transactions  contemplated
herein,  and as to such other  matters  as the  Acquired  Fund shall  reasonably
request.

         6.3 As of the Closing Date, there shall have been no material change in
the investment  objective,  policies and restrictions nor any material change in
the investment management fees, fee levels payable pursuant to the 12b-1 plan of
distribution,  other fees payable for services  provided to the Acquiring  Fund,
fee  waiver  or  expense  reimbursement  undertakings,  or  sales  loads  of the
Acquiring  Fund from those fee  amounts,  undertakings  and sales  load  amounts
described in the Prospectus of the Acquiring Fund delivered to the Acquired Fund
pursuant to paragraph 4.1 and in the N-14 Registration Statement.

         6.4 The  Acquired  Fund shall have  received at the Closing a favorable
opinion of Paul,  Hastings,  Janofsky & Walker LLP,  counsel to AST, dated as of
the Closing  Date,  in a form  reasonably  satisfactory  to the  Acquired  Fund,
substantially to the effect that:

                  (a) AST is a duly registered,  open-end, management investment
company,  and its registration  with the SEC as an investment  company under the
1940  Act is in full  force  and  effect  and the  Acquiring  Fund is a  validly
existing series of AST; (b) AST is a business trust duly created pursuant to its
Agreement and  Declaration  of Trust,  is validly  existing and in good standing
under the laws of the State of Delaware,  and the Agreement and  Declaration  of
Trust  directs the AST Trustees to manage the affairs of AST and grants them all
powers  necessary  or  desirable  to carry  out such  responsibility,  including
administering  the  Acquiring  Fund's  business  as  described  in  the  current
Prospectus of the Fund; (c) the Acquiring Fund is a validly established separate
series  of AST;  (d) this  Agreement  has been  duly  authorized,  executed  and
delivered  by  AST  on  behalf  of  the   Acquiring   Fund  and,   assuming  due
authorization,  execution  and  delivery  of this  Agreement  on  behalf  of the
Acquired Fund, is a valid and binding obligation of AST, enforceable against AST
in  accordance  with  its  terms,  subject  as to  enforcement,  to  bankruptcy,
insolvency,  reorganization,  arrangement,  moratorium and other similar laws of
general applicability  relating to or affecting creditors' rights and to general
equity  principles;  (e) the Acquiring  Fund Shares to be issued to the Acquired
Fund and then  distributed  to the  Acquired  Fund  Investors  pursuant  to this
Agreement are duly registered  under the 1933 Act on the  appropriate  form, and
are  duly  authorized  and  upon  such  issuance  will  be  validly  issued  and
outstanding, fully paid and non-assessable; (f) an amendment to the Registration
Statement of 
                                       11
<PAGE>
AST has been  filed  with the SEC with  respect  to the  Acquiring  Fund and has
become  effective  and, to the best of such counsel's  knowledge,  no stop order
suspending the effectiveness thereof has been issued and no proceedings for that
purpose  have been  instituted  or are  pending or  threatened;  and (g) to such
counsel's knowledge, no consent,  approval,  order or other authorization of any
federal or  Delaware  state  court or  administrative  or  regulatory  agency is
required for AST to enter into this Agreement or to carry out its terms that had
not already been obtained,  other than where the failure to obtain such consent,
approval  or  authorization  would  not have a  material  adverse  effect on the
operations of AST.

         6.5 The initial  shareholder  and the Board of Trustees  (including the
disinterested  Trustees) of the  Acquiring  Fund have approved the adoption of a
distribution  plan pursuant to Rule 12b-1 as promulgated  under the 1940 Act and
an  investment  advisory  agreement  between  Van  Deventer  & Hoch and AST with
respect  to the  Acquiring  Fund,  both in the  forms  as  presented  to the MFG
Trustees.


7.       CONDITIONS PRECEDENT TO OBLIGATIONS OF ACQUIRING FUND

         The obligations of AST to consummate the Reorganization with respect to
the  Acquiring  Fund  shall  be  subject  to the  performance  by MFG of all the
obligations to be performed by it hereunder,  with respect to the Acquired Fund,
on  or  before  the  Closing  Date  and,  in  addition  thereto,  the  following
conditions:

         7.1 All  representations  and  warranties  of MFG with  respect  to the
Acquired  Fund  contained  herein  shall be true  and  correct  in all  material
respects  as of the date  hereof  and,  except  as they may be  affected  by the
transactions  contemplated by this  Agreement,  as of the Closing Date, with the
same force and effect as if made on and as of the Closing Date.

         7.2 MFG, on behalf of the Acquired  Fund,  shall have  delivered to the
Acquiring  Fund at the Closing a certificate  executed on behalf of the Acquired
Fund,  by  MFG's  President,  Secretary  or  Assistant  Secretary,  in form  and
substance  reasonably  satisfactory  to the  Acquiring  Fund and dated as of the
Closing Date, to the effect that the  representations and warranties of MFG with
respect to the  Acquired  Fund made herein are true and correct at and as of the
Closing Date,  except as they may be affected by the  transactions  contemplated
herein  and as to such  other  matters as the  Acquiring  Fund shall  reasonably
request.

         7.3 With  respect to the  Acquired  Fund,  the Board of Trustees of MFG
shall have  determined that the  Reorganization  is in the best interests of the
Acquired Fund and shall have made all the determinations  required by Rule 17a-8
under the 1940 Act.


8.       FURTHER CONDITIONS PRECEDENT TO OBLIGATIONS OF THE
                                       12
<PAGE>
         ACQUIRING FUND AND THE ACQUIRED FUND.

         The  obligations  of the Acquiring Fund and of the Acquired Fund herein
are each  subject to the further  conditions  that on or before the Closing Date
with respect to the Acquiring Fund and the Acquired Fund:

         8.1 This Agreement and the transactions  contemplated herein shall have
been approved by the requisite vote of the holders of the outstanding  shares of
the Acquired Fund in accordance  with the  provisions  of MFG's  Declaration  of
Trust  and the  requirements  of the  1940  Act,  and  certified  copies  of the
resolutions  evidencing such approval shall have been delivered to the Acquiring
Fund.

         8.2 On the Closing Date, no action,  suit or other  proceeding shall be
pending  before  any  court or  governmental  agency  in which it is  sought  to
restrain or prohibit, or obtain damages or other relief in connection with, this
Agreement or any of the transactions contemplated herein.

         8.3 All  consents  of other  parties  and all other  consents,  orders,
approvals  and  permits  of  federal,  state  and local  regulatory  authorities
(including,  without  limitation,  those of the SEC) deemed necessary by AST, on
behalf of the Acquiring  Fund, or MFG, on behalf of the Acquired Fund, to permit
consummation,  in all material respects, of the transactions contemplated herein
shall have been obtained, except where failure to obtain any such consent, order
or permit would not, in the opinion of the party asserting that the condition to
closing has not been satisfied,  involve a risk of a material  adverse effect on
the assets or properties of the Acquiring Fund or the Acquired Fund.

         8.4 The post-effective  amendment to the registration  statement of AST
registering  shares of the Acquiring  Fund and the N-14  Registration  Statement
shall have become  effective  under the 1933 Act, no stop orders  suspending the
effectiveness  thereof shall have been issued and, to the best  knowledge of the
parties hereto,  no investigation or proceeding for that purpose shall have been
instituted or be pending, threatened or contemplated under the 1933 Act.

         8.5 The  Acquired  Fund shall  have  declared  and paid a  dividend  or
dividends  which,  together  with all previous  such  dividends,  shall have the
effect of distributing to the Acquired Fund's shareholders  substantially all of
the Acquired  Fund's  investment  company  taxable  income for all taxable years
ending on or prior to the Closing Date (computed without regard to any deduction
for dividends  paid) and  substantially  all of its net capital gain realized in
all taxable  years ending on or prior to the Closing Date (after  reduction  for
any capital loss carryover).

         8.6 AST and MFG shall have  received  the  opinion  of Paul,  Hastings,
Janofsky & Walker LLP addressed to both the Acquiring Fund and the Acquired Fund
(and  based on  customary  representation  certificates  from  AST and MFG,  the
Acquiring  Fund and the Acquired  Fund)  substantially  to the effect that,  for
federal income tax purposes:
                                       13
<PAGE>
                  (a)  The  transfer  by the  Fund of  substantially  all of its
assets to the Acquiring  Fund solely in exchange for the Acquiring  Fund Shares,
as  described  above,  is  a  reorganization   within  the  meaning  of  Section
368(a)(1)(D) of the Internal Revenue Code of 1986, as amended (the "Code");  (b)
no gain or loss is recognized by the Fund upon the transfer of substantially all
of its  assets  to the  Acquiring  Fund in  exchange  solely  for  shares of the
Acquiring  Fund Shares;  (c) no gain or loss is recognized by the Acquiring Fund
on receipt of the Fund assets in exchange for the Acquiring Fund Shares; (d) the
basis of the assets of the Fund in the hands of the  Acquiring  Fund is, in each
instance,  the  same as the  basis  of  those  assets  in the  hands of the Fund
immediately  prior to the  transaction;  (e) the  holding  period of the  Fund's
assets in the hands of the  Acquiring  Fund includes the period during which the
assets  were  held  by the  Fund;  (f) no gain  or  loss  is  recognized  to the
shareholders of the Fund upon the receipt of the Acquiring Fund Shares solely in
exchange  for the Fund's  shares;  (g) the basis of the  Acquiring  Fund  Shares
received by the Fund shareholders is, in each instance, the same as the basis of
the Fund shares surrendered in exchange therefor;  (h) the holding period of the
Acquiring  Fund Shares  received by the Fund  shareholders  includes the holding
period during which shares of the Fund  surrendered  and exchanged  therefor was
held, provided that such shares were held as a capital asset in the hands of the
Fund shareholders on the date of the exchange.

         Notwithstanding anything herein to the contrary,  neither the Acquiring
Fund nor the Acquired Fund may waive the  condition set forth in this  paragraph
8.6.


9.       EXPENSES

         9.1 The expenses of entering  into and carrying out the  provisions  of
this  Agreement  and the  Reorganization  will be borne by Van Deventer and Hoch
and/or The Chase Manhattan  Corporation,  whether or not the  Reorganization  is
consummated.


10.      ENTIRE AGREEMENT; SURVIVAL OF WARRANTIES

         10.1 This  Agreement  constitutes  the  entire  agreement  between  the
parties and supersedes any prior or contemporaneous understanding or arrangement
with respect to the subject matter hereof.

         10.2 The  representations,  warranties and covenants  contained in this
Agreement or in any document delivered pursuant hereto or in connection herewith
shall survive the consummation of the transactions contemplated herein.


11.      TERMINATION
                                       14
<PAGE>
         11.1 This Agreement may be terminated and the transactions contemplated
hereby may be abandoned  at any time before the Closing by either the  Acquiring
Fund or the Acquired Fund.


12.      AMENDMENTS

         This Agreement may be amended,  modified or supplemented in such manner
as may be  mutually  agreed upon in writing by the  authorized  officers of MFG,
acting on behalf of the Acquired Fund and the authorized officers of AST, acting
on behalf of the Acquiring Fund; provided,  however,  that following the meeting
of the  shareholders of the Acquired Fund, no such amendment may have the effect
of changing the provisions for determining the number of shares of the Acquiring
Fund to be issued to the Acquired  Fund  Investors  under this  Agreement to the
detriment of such Acquired Fund Investors, or otherwise materially and adversely
affecting the Acquired  Fund,  without the Acquired Fund  obtaining the Acquired
Fund Investors'  further approval except that nothing in this paragraph 12 shall
be construed to prohibit the Acquiring  Fund and the Acquired Fund from amending
this Agreement to change the Closing Date or Applicable Valuation Date by mutual
agreement.


13.      NOTICES

         Any notice,  report,  statement or demand  required or permitted by any
provision  of this  Agreement  shall be in writing and shall be given by prepaid
telegraph, telecopy, certified mail or overnight express courier addressed to:

         For AST, on behalf of itself and the Acquiring Fund:

                  Richard A. Snyders
                  President
                  Van Deventer & Hoch
                  800 North Brand Blvd., Suite 300
                  Glendale, California 91203

         With copies to:

                  Julie Allecta, Esq. and
                  Kelvin K. Leung, Esq.
                  Paul, Hastings, Janofsky & Walker LLP
                  345 California Street, 28th Floor
                  San Francisco, California 94104
                                       15
<PAGE>
         For MFG, on behalf of itself and the Acquired Fund:

                  Colleen McCoy
                  The Chase Manhattan Corporation
                  One Chase Square, Tower 7
                  Rochester, New York 14643

         With copies to:

                  Robert Kaner, Esq.
                  Simpson Thacher & Bartlett
                  425 Lexington Avenue
                  New York, New York 10017-3954


14.      HEADINGS;  COUNTERPARTS;   GOVERNING  LAW;  ASSIGNMENT;  LIMITATION  OF
         LIABILITY

         14.1 The  article  and  paragraph  headings  contained  herein  are for
reference  purposes  only  and  shall  not  affect  in any  way the  meaning  or
interpretation of this Agreement. All references herein to Articles, paragraphs,
subparagraphs   or  Exhibits  shall  be  construed  as  referring  to  Articles,
paragraphs or subparagraphs  hereof or Exhibits hereto,  respectively.  Whenever
the  terms  "hereto",  "hereunder",  "herein"  or  "hereof"  are  used  in  this
Agreement, they shall be construed as referring to this entire Agreement, rather
than to any individual Article, paragraph, subparagraph or sentence.

         14.2 This Agreement may be executed in any number of counterparts, each
of which shall be deemed an original.

         14.3 This  Agreement  shall be governed by and  construed in accordance
with the laws of the State of Delaware.

         14.4 This Agreement  shall bind and inure to the benefit of the parties
hereto  and their  respective  successors  and  assigns,  but no  assignment  or
transfer  hereof or of any rights or obligations  hereunder shall be made by any
party without the written consent of the other parties. Nothing herein expressed
or implied is intended or shall be  construed to confer upon or give any person,
firm or  corporation,  other  than  the  parties  hereto  and  their  respective
successors  and  assigns,  any  rights  or  remedies  under or by reason of this
Agreement.

         14.5 AST acknowledges the following limitation of liability:

         The terms "Mutual Fund Group" and "MFG Trustees"  refer,  respectively,
to the trust 
                                       16
<PAGE>
created and the MFG Trustees,  as trustees but not  individually  or personally,
acting from time to time under the  Declaration of Trust,  to which reference is
hereby  made and a copy of which is on file at the  office of the  Secretary  of
State of the State of  Massachusetts,  such reference being inclusive of any and
all amendments  thereto so filed or hereafter  filed. The obligations of "Mutual
Fund  Group"  entered  into in the name or on behalf  thereof  by any of the MFG
Trustees,  representatives  or  agents  are made not  individually,  but in such
capacities  and are not binding upon any of the MFG  Trustees,  shareholders  or
representatives  of the Trust  personally,  but bind only the assets of MFG, and
all persons dealing with MFG or the Acquired Fund must look solely to the assets
of MFG or the Acquired Fund for the enforcement of any claims against MFG or the
Acquired Fund.
                                       17
<PAGE>
                  IN WITNESS WHEREOF, each of the parties hereto has caused this
Agreement to be duly  executed by its  authorized  officer,  and attested by its
Secretary.


                                            Mutual Fund Group
                                            for itself and on behalf of
                                            Vista American Value Fund


                                            By:    ___________________
                                            Title: ___________________

                                            Advisors Series Trust
                                            for itself and on behalf of
                                            Van Deventer & Hoch
                                            American Value Fund


                                            By:    ___________________
                                            Title: ___________________


Accepted and agreed as to Section 9:

VAN DEVENTER & HOCH


____________________________
Title:


THE CHASE MANHATTAN CORPORATION


____________________________
Title:
                                       18
<PAGE>
                                      PROXY
                     FOR SPECIAL MEETING OF SHAREHOLDERS OF
                            VISTA AMERICAN VALUE FUND
                              ON JANUARY ___, 1998


         The  undersigned  hereby  appoints   _____________________________  and
_____________________________,  or each of them,  proxies  for the  undersigned,
with full power of substitution, to represent the undersigned and to vote all of
the shares of Vista  American  Value Fund (the "Fund") of Mutual Fund Group (the
"Trust")  which the  undersigned  is entitled to vote at the Special  Meeting of
Shareholders of the Fund to be held on January ___, 1998, and at any adjournment
thereof.

         1.       To approve a  reorganization  of the Fund into Van  Deventer &
                  Hoch American Value Fund (the "Acquiring  Fund"),  a series of
                  Advisors Series Trust,  which provides for (i) the transfer of
                  all of the net  assets of the Fund to the  Acquiring  Fund,  a
                  series of the Advisors Series Trust, in exchange for shares of
                  the  Acquiring  Fund of  equivalent  value,  (ii) the pro rata
                  distribution  of  such  shares  of the  Acquiring  Fund to the
                  shareholders   of  the  Fund  in  full   redemption   of  such
                  shareholders'  shares  in the Fund,  and  (iii) the  immediate
                  liquidation and termination of the Fund.

                         [_]FOR             [_]AGAINST            [_]ABSTAIN

         And, in their  discretion,  to  transact  any other  business  that may
lawfully come before the Meeting or any adjournment(s) thereof.
                                      -1-
<PAGE>
                  THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES AND
WILL BE VOTED AS DIRECTED HEREIN.  IF NO DIRECTION IS GIVEN,  THIS PROXY WILL BE
VOTED FOR THE PROPOSAL.


Dated:___________________________



                                     ___________________________________________
                                                Signature of Shareholder



                                     ___________________________________________
                                                Signature of Shareholder



When shares are registered jointly in the names of two or more persons, ALL such
persons must sign.  Signature(s)  must  correspond  exactly with the name(s) the
shares are  registered  under.  Please  sign,  date and return  promptly  in the
enclosed envelope.
                                      -2-
<PAGE>








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

                                     PART B
                                     ------

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


<PAGE>
                                MUTUAL FUND GROUP
                            VISTA AMERICAN VALUE FUND

                                      ----
                                101 Park Avenue,
                            New York, New York 10178
                                 1-800-34-VISTA

                                     -------
                       STATEMENT OF ADDITIONAL INFORMATION
                             DATED DECEMBER 15, 1997
                     FOR REGISTRATION STATEMENT ON FORM N-14

                  This  Statement of Additional  Information is not a prospectus
and  should  be read in  conjunction  with  the  Combined  Proxy  Statement  and
Prospectus  dated  [December 15, 1997],  which has been filed by Advisors Series
Trust ("AST Trust") in connection  with a Special Meeting of Shareholders of the
Vista  American  Value Fund (the "Fund") of Mutual Fund Group (the "Trust") that
has been  called to vote on an  Agreement  and Plan of  Reorganization  (and the
transactions  contemplated thereby).  Copies of the Combined Proxy Statement and
Prospectus  may be  obtained  at no charge by writing  Mutual  Fund Group at the
address indicated above or by calling toll-free 1-800-34-VISTA.

                  Unless otherwise indicated,  capitalized terms used herein and
not  otherwise  defined  have  the  same  meanings  as are  given to them in the
Combined Proxy Statement and Prospectus.

                  Further information about the Trust, the Fund, Advisors Series
Trust  ("AST  Trust")  and the Van  Deventer  & Hoch  American  Value  Fund (the
"Acquiring  Fund") is contained in the Fund's Prospectus dated February 28, 1997
, the Acquiring  Fund's  Prospectus dated [December 15, 1997], the Annual Report
of the Fund for the  fiscal  year ended  October  31,  1996 and the  Semi-Annual
Report of the Fund for the  fiscal  period  ended  April 30,  1997.  The  Fund's
Statement of Additional  Information  (which  includes other series of the Vista
family of funds),  dated May 19, 1997,  and the  Acquiring  Fund's  Statement of
Additional  Information dated [December 15, 1997], are incorporated by reference
in this Statement of Additional  Information and is available  without charge by
calling Van Deventer & Hoch at (818) 247-5330.

                  Pro-forma financial  statements are attached hereto as Exhibit
A.

                                TABLE OF CONTENTS
                                                                            Page
                                                                            ----
General Information.........................................................B-2
Exhibit A...................................................................B-3
                                      B-1
<PAGE>
                               GENERAL INFORMATION

                  The shareholders of the Fund are being asked to approve a form
of Agreement and Plan of Reorganization (the "Plan") combining the Fund into the
Acquiring  Fund  (and  the   transactions   contemplated   thereby).   The  Plan
contemplates  the transfer of all of the assets of the Fund as of the  Effective
Date to the Acquiring  Fund,  and the  assumption  by the Acquiring  Fund of the
liabilities  of  the  Fund,  in  exchange  for  shares  of the  Acquiring  Fund.
Immediately   after  the  Effective  Date,  the  Fund  will  distribute  to  its
shareholders  of record as of the close of  business on the  Effective  Date the
shares of the Acquiring  Fund  received.  The shares of the Acquiring  Fund that
will  be  issued  for  distribution  to the  Fund's  Shareholders  will  have an
aggregate  net asset value equal to the  aggregate net asset value of the shares
of the Fund held as of the Closing Date.  The Trust will then take all necessary
steps to terminate the  qualification,  registration and  classification  of the
Fund.  All issued and  outstanding  shares of the Fund will be  canceled  on the
Fund's books.  Shares of the  Acquiring  Fund will be  represented  only by book
entries; no share certificates will be issued.

                  A Special  Meeting of the Fund's  shareholders to consider the
transaction  will be held at the offices of The Chase  Manhattan Bank, One Chase
Manhattan  Plaza,  Third Floor,  New York, NY 10081 on January ___,  1998, at 10
a.m., local time.

                  For  further  information  about  the  transaction,   see  the
Combined Proxy Statement and Prospectus. For further information about the Trust
and the Fund, see the Fund's Statement of Additional Information,  dated May 19,
1997, which is available without charge by calling the Trust at  1-800-34-VISTA.
For further  information  about the AST Trust and the  Acquiring  Fund,  see the
Acquiring Fund's Statement of Additional Information, dated [December 15, 1997],
which is available without charge by calling the AST Trust at (602) 952-8520.
                                      B-2
<PAGE>
                                    Exhibit A
                                    ---------

VD&H American Value Fund
Pro Forma Portfolio of Investments October 31, 1996

Shares       Issuer                                                     Value
- --------------------------------------------------------------------------------
Long-Term Investments -- 91.4%
- --------------------------------------------------------------------------------
             Common Stock -- 91.4%
             ---------------------
             Aerospace -- 0.9%
  1,800      Raytheon Co.                                            $   88,650
                                                                     ----------
             Banking -- 7.0%
  6,270      Banc One Corp.                                             265,691
  1,400      BankAmerica Corp.                                          128,100
  5,700      H.F. Ahmanson & Co.                                        178,838
  1,200      J.P. Morgan & Company, Inc.                                103,650
                                                                     ----------
                                                                        676,279
                                                                     ----------
             Computers/Computer Hardware -- 2.3%
 10,000      *Stratus Computer, Inc., Class A                           223,750
                                                                     ----------
             Construction Materials -- 1.6%
  5,000      Masco Corp.                                                156,875
                                                                     ----------
             Consumer Products -- 4.3%
  9,000      Sunbeam Corp., Inc.                                        221,625
  4,000      Whirlpool Corp.                                            189,000
                                                                     ----------
                                                                        410,625
                                                                     ----------
             Electronics/Electrical Equipment -- 7.6%
 10,000      EG&G, Inc.                                                 176,250
  4,000      Motorola, Inc.                                             184,000
  4,000      Tecumseh Products Co., Class A                             225,000
  8,000      Watkins-Johnson                                            145,000
                                                                     ----------
                                                                        730,250
                                                                     ----------
             Environmental Services -- 3.8%
 12,000      Calgon Carbon Corp.                                        120,000
  7,000      WMX Technologies, Inc.                                     240,625
                                                                     ----------
                                                                        360,625
                                                                     ----------
             Financial Services -- 2.6%
  6,400      Federal National Mortgage Association                      250,400
                                                                     ----------
             Health Care/Health Care Services -- 3.1%
  4,400      Bard (C.R.), Inc.                                          124,300
  4,200      Baxter International Inc.                                  174,825
                                                                     ----------
                                                                        299,125
                                                                     ----------
                                      B-3
<PAGE>
VD&H American Value Fund
Pro Forma Portfolio of Investments October 31, 1996

Shares       Issuer                                                     Value
- --------------------------------------------------------------------------------
Long-Term Investments -- (continued)
- --------------------------------------------------------------------------------
             Insurance -- 10.8%
  7,000      Allstate Corp.                                          $  392,875
  3,600      Aon Corp.                                                  207,900
  7,000      First Colony Corp.                                         250,250
  4,800      Safeco Corp.                                               181,200
                                                                     ----------
                                                                      1,032,225
                                                                     ----------
             Manufacturing -- 1.6%
  8,200      Zero Corp.                                                 150,675
                                                                     ----------
             Metals/Mining -- 1.7%
  7,400      Cyprus Amax Minerals Co.                                   167,425
                                                                     ----------
             Oil & Gas -- 11.1%
  1,200      Atlantic Richfield Co., (ARCO)                             159,000
  5,000      Burlington Resources, Inc.                                 251,875
  5,000      El Paso Natural Gas Co.                                    242,500
  2,200      Schlumberger, Ltd.                                         218,075
  7,000      Union Pacific Resources Group, Inc.                        192,500
                                                                     ----------
                                                                      1,063,950
                                                                     ----------
             Paper/Forest Products -- 9.1%
 11,500      Longview Fibre Co.                                         199,812
 12,500      Louisiana-Pacific Corp.                                    260,937
  5,000      Potlatch Corp.                                             213,750
  3,000      St. Joe Paper Co.                                          201,000
                                                                     ----------
                                                                        875,499
                                                                     ----------
             Pharmaceuticals -- 2.3%
  3,000      Merck & Company, Inc.                                      222,375
                                                                     ----------
             Printing & Publishing -- 6.3%
  3,400      Dun & Bradstreet Corp.                                     196,775
  6,000      Readers Digest Association, Inc.                           213,750
  2,400      Tribune Co.                                                196,200
                                                                     ----------
                                                                        606,725
                                                                     ----------
             Real Estate Investment Trust -- 2.3%
  9,674      BRE Properties, Inc., Class A                              222,502
                                                                     ----------
                                      B-4
<PAGE>
Vista American Value Fund
Portfolio of Investments October 31, 1996

Shares       Issuer                                                     Value
- --------------------------------------------------------------------------------
Long-Term Investments -- (continued)
- --------------------------------------------------------------------------------
             Retailing -- 3.7%
  6,000      Dayton-Hudson Corp.                                     $  207,750
  4,600      Dillard Department Stores, Inc., Class A                   146,050
                                                                     ----------
                                                                        353,800
                                                                     ----------
             Shipping/Transportation -- 1.9%
  2,000      Norfolk Southern Corp.                                     178,250
                                                                     ----------
             Textiles -- 3.7%
  5,500      Liz Claiborne, Inc.                                        232,375
  8,400      Oshkosh B'Gosh, Inc., Class A                              126,000
                                                                     ----------
                                                                        358,375
                                                                     ----------
             Tire & Rubber -- 1.9%
  4,000      Goodyear Tire & Rubber, Inc.                               183,500
                                                                     ----------
             Wholesaling -- 1.8%
  4,800      Reliance Steel & Aluminum Co.                              175,800
- --------------------------------------------------------------------------------
    Total Long-Term Investments
    (Cost $6,816,392)                                                 8,787,680
- --------------------------------------------------------------------------------

Principal
Amount
- --------------------------------------------------------------------------------
Short-Term Investments -- 7.8%
- --------------------------------------------------------------------------------
             U.S. Government Obligations -- 4.7%
             -----------------------------------
             U.S. Treasury Bill,
$256,000     4.84%, 11/21/96                                            255,294
196,000      5.00%, 12/12/96                                            194,898
                                                                     ----------
                                                                        450,192
                                                                     ----------
             Commercial Paper -- 3.1%
             ------------------------
298,800      General Electric, 5.20%, 11/04/96                          298,671
- --------------------------------------------------------------------------------
    Total Short-Term Investments
    (Cost $748,863)                                                     748,863
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
    Total Investments -- 99.2%
    (Cost $7,565,255)                                               $ 9,536,543
- --------------------------------------------------------------------------------

* - Non-income producing security
                                      B-5
<PAGE>
Pro Forma Statement of Assets and Liabilities October 31, 1996 (Unaudited)
<TABLE>
<CAPTION>

                                                     Vista American          Pro Forma           Pro Forma
                                                         Value Fund        Adjustments            Combined
                                                                      
<S>                                                      <C>                <C>                 <C>       
ASSETS:                                                               
Investment securities, at value                          $9,536,543         $        0          $9,536,543
Cash                                                          1,430                  0               1,430
Receivables:                                                          
Investment securities sold                                  265,000                  0             265,000
Interest and dividends                                        8,444                  0               8,444
Other assets                                                 42,832                  0              42,832
                                                         ----------         ----------          ----------
Total assets                                             $9,854,249                  0           9,854,249
                                                         ----------         ----------          ----------
                                                                      
LIABILITIES:                                                          
Payable for investment securities purchased                 195,685                  0             195,685
                                                                      
Payable for Fund shares redeemed                              4,229                  0               4,229
Accrued liabilities:                                                  
Administration fees                                             403               (403)(a)               0
Custodian                                                     5,342             (5,342)(b)               0
Other                                                        39,190              5,745 (b)          44,935
                                                         ----------         ----------          ----------
Total Liabilities                                           244,849                  0             244,849
                                                         ----------         ----------          ----------
                                                                      
NET ASSETS:                                                           
Paid in capital                                           7,209,079                  0           7,209,079
Accumulated undistributed net investment income              55,150                  0              55,150
Accumulated undistributed net realized gain (loss)                    
on investment transactions                                  373,883                  0             373,883
Net unrealized appreciation/depreciation                              
of investment                                             1,971,288                  0           1,971,288
                                                         ----------         ----------          ----------
Net Assets:                                              $9,609,400                  0          $9,609,400
                                                         ----------         ----------          ----------
</TABLE>
                                      B-6
<PAGE>
Pro Forma Statement of Assets October 31, 1996 (Unaudited)
(continues)

Shares of beneficial interest outstanding ($.001 par value;  unlimited number of
shares authorized):
<TABLE>
<CAPTION>

<S>                                                      <C>                         <C>        <C>    
Class A Shares:                                             712,360                  0             712,360
Net asset value, redemption price and
Maximum offering price per share                         $    13.49                  0          $    13.49
Cost of Investments                                      $7,565,255                  0          $7,565,255
</TABLE>
                                      B-7
<PAGE>
Pro Forma Statements of Operations
For the period December 1, 1995 through October 31, 1996 (Unaudited)

<TABLE>
<CAPTION>
                            Vista American        Pro Forma                Pro Forma
                                Value Fund      Adjustments      Van Deventer & Hoch
                                                                 American Value Fund
<S>                              <C>              <C>                      <C>      
INVESTMENT INCOME:
Dividend                         $ 156,894                0                $ 156,894
Interest                            56,297                0                   56,297
Foreign taxes withheld                 (82)               0                      (82)
                                 ---------        ---------                ---------
Total investment income            213,109                0                  213,109
                                 ---------        ---------                ---------
                                                                      
EXPENSES:                                                             
Administration fees                  9,506           (9,506)(a)                    0
Distribution fees                   11,065                0                   11,065
Investment Advisory fees            57,746                0                   57,746
Shareholder servicing fees          22,535                0                   22,535
Custodian fees                      26,673          (26,673)(b)                    0
Printing and postage                 7,648           (7,648)(b)                    0
Professional fees                   17,729          (17,729)(b)                    0
Registration costs                  15,202          (15,202)(b)                    0
Transfer agent fees                 13,959          (13,959)(b)                    0
Trustees fees and expenses             650             (650)(b)                    0
Other                               12,529           64,288(b)                76,817
                                 ---------        ---------                ---------
Total expenses                     195,242          (27,079)                 168,163
                                 ---------        ---------                ---------
</TABLE>
                                      B-8
<PAGE>
Pro Forma Statements of Operations
For the period December 1, 1995 through October 31, 1996 (Unaudited)
(continues)

<TABLE>
<CAPTION>
                                                       Vista American        Pro Forma                  Pro Forma
                                                           Value Fund      Adjustments        Van Deventer & Hoch
                                                                                              American Value Fund
<S>                                                        <C>              <C>                        <C>       
Less amounts waived                                            89,081            2,265(c)                  91,346
Less expenses borne by the Distributor                                                            
Net expenses                                                  106,161          (29,344)                    76,817
Net investment income                                         106,948           29,344                    136,292
                                                                                                  
REALIZED AND UNREALIZED                                                                           
GAIN (LOSS) ON INVESTMENTS:                                                                       
Net realized agin (loss) on:                                                                      
Investments                                                   500,892                                     500,892
Change in net realized appreciation/depreciation on:                                              
Investments                                                   716,130                                     716,130
                                                           ----------                                  ----------
Net realized gain and unrealized                                                                  
gain (loss) on investments                                  1,271,022                0                  1,217,022
                                                           ----------       ----------                 ----------
Net increase in net assets from                                                                   
operations                                                 $1,323,970       $   29,344                 $1,353,314
                                                           ----------       ----------                 ----------
</TABLE>

See notes to financial statements.


(a)  Reflects  adjustments for fees which were previously  being charged and are
     no longer being charged.
(b)  Reflects the management agreement to charge 1.05%.  Management will pay all
     operating expenses of the fund.

(c)  Reflects management  agreement to waive all management fees for the balance
     of 1998 to maintain  annualized  Total Fund Operating  Expenses at 1.05% of
     average net assets. 
                                      B-9
<PAGE>
                     Van Deventer & Hoch American Value Fund


                   Notes to the Pro-Forma Financial Statements


1.       Basis of presentation

         The Pro  Forma  Portfolio  of  Investments,  Statement  of  Assets  and
Liabilities  and Statement of Operations  ("Pro forma  Statements")  reflect the
accounts of the Vista American  Value  Portfolio at October 31, 1996 and for the
year then ended.

         The Pro Forma  Statements  give effect to the proposed  transfer of all
assets and liabilities of the Vista American Value Portfolio to the Van Deventer
& Hoch  American  Value  Portfolio in exchange for shares of such Van Deventer &
Hoch Portfolio.

         The  Pro  Forma  Statements  should  be read in  conjunction  with  the
historical  financial  statements of the Portfolio  included in the Statement of
Additional Information.

2.       Shares of Beneficial Interest

         The pro forma net asset value per share and shares  outstanding  assume
the issuance of additional shares of the Van Deventer & Hoch American Value Find
on  October  31,  1996 in  connection  with  the  proposed  reorganization,  the
additional  shares (712,360) to be issued for the Vista American Value Fund were
based on the October 31, 1996 net assets ($9,609,400) of the Vista Portfolio and
the net asset value per share of such Fund ($13.49).

3.       Pro Forma Operating Expenses

         The Pro forma  Statements of Operations  assume  similar rates of gross
investment  income for the investments of the Van Deventer & Hoch American Value
Portfolio.  Accordingly,  the  gross  investment  income  is equal to the  Vista
American Value Portfolio's gross investment  income.  Certain expenses have been
adjusted to reflect the expected  expenses of the Van  Deventer & Hoch  American
Value  fund more  closely.  Pro forma  operating  expenses  included  the actual
expenses of the Vista  Portfolio  adjusted for certain items which are factually
supportable.  For  the  Van  Deventer  &  Hoch  American  Value  Portfolio,  all
management  fees are expected to be waived by the Shareholder  Servicing  Agent,
The Distributor,  and the Advisor,  and the Portfolio's expenses are adjusted to
reflect expected waivers.
                                      B-10
<PAGE>








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


                                     PART C
                                     ------

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


<PAGE>
                                MUTUAL FUND GROUP
                                     PART C
                                OTHER INFORMATION

ITEM 15. INDEMNIFICATION

         The  response to this item is  incorporated  by reference to Item 27 of
Part C of  Post-Effective  Amendment No. 32, filed December 28, 1995 ("Amendment
No. 32"), to the Registrant's Registration Statement on Form N-1A, filed May 11,
1987, Registration Statement No. 33-14196 (the "Registration Statement").


ITEM 16. EXHIBITS

Exhibit No.

         1        Declaration of Trust, as amended. (1)

         2        By-laws, as amended. (1)

         3        None.

         4        Form of Agreement and Plan of  Reorganization  (filed herewith
                  as Exhibit A to Prospectus/Proxy Statement).

         5        Specimen share certificate. (3)

         6        Investment Advisory Agreement (2)

         7        Distribution Agreement. (2)

         8        None.

         9        Custodian Agreement. (3)

         10       Rule 12b-1 Distribution Plan. (4)

         11       Opinion of Counsel  regarding  legality  of issuance of shares
                  and other matters. (5).

         12       Opinion of Counsel on tax matters. (6)

         13(a)    Administration     Agreement    with    Investment     Company
                  Administration Corporation. (2)

         13(b)    Fund Accounting Service Agreement. (2)

         13(c)    Transfer Agency and Service Agreement. (2)

         14(a)    Consent of Price Waterhouse, Independent Accountants. (5)

         14(b)    Consent of McGladrey & Pullen, LLP,  Independent  Accountants.
                  (5)

         15       Inapplicable.

         16       Power of Attorney (5)
<PAGE>
         (1) Previously filed with the Registration Statement on Form N-1A (File
No. 333-17391) on December 6, 1996, and incorporated herein by this reference.

         (2)  Previously  filed  with  Pre-Effective  Amendment  No.  1  to  the
Registration  Statement on Form N-1A (File No.  333-17391)  on January 29, 1997,
and incorporated herein by this reference.

         (3)  Previously  filed  with  Pre-Effective  Amendment  No.  2  to  the
Registration  Statement on Form N-1A (File No.  333-17391) on February 28, 1997,
and incorporated herein by this reference.

         (4)  Previously  filed  with  Post-Effective  Amendment  No.  2 to  the
Registration  Statement on Form N-1A (File No.  333-17391)  on May 1, 1997,  and
incorporated herein by this reference.

         (5) Filed herewith.

         (6) To be filed as an exhibit to a post-effective amendment pursuant to
an undertaking under Item 17.

ITEM 17. UNDERTAKINGS.

         (a)  The  undersigned  Registrant  agrees  that  prior  to  any  public
reoffering of the securities  registered through the use a prospectus which is a
part of this  Registration  Statement by any person or party who is deemed to be
an  underwriter  within the meaning of Rule 145(c) of the  Securities  Act,  the
reoffering  prospectus will contain the information called for by the applicable
registration form for reofferings by persons who may be deemed underwriters,  in
addition  to the  information  called for by the other  items of the  applicable
form.

         (b) The  undersigned  Registrant  agrees that every  prospectus that is
filed under  paragraph  (a) above will be filed as part of an  amendment  to the
Registration  Statement  and will not be used until the  amendment is effective,
and that, in determining any liability  under the 1933 Act, each  post-effective
amendment shall be deemed to be a new registration  statement for the securities
offered therein, and the offering of the securities at that time shall be deemed
to be the initial bona fide offering of them.

         (c)  The  undersigned   Registrant  agrees  to  file  a  post-effective
amendment  to this  Registration  Statement  including a signed tax opinion from
Paul,  Hastings,  Janofsky & Walker,  LLP opining on the tax-free  nature of the
reorganization.
<PAGE>
                                   SIGNATURES

                  Pursuant to the requirements of the Securities Act of 1933, as
amended,  and the Investment Company Act of 940, as amended,  the Registrant has
duly caused this Pre-Effective  Amendment to the Registration  Statement on Form
N-14 to be signed on its behalf by the  undersigned,  thereunto duly authorized,
in  the City  of Phoenix  and the State  of Arizona on the 17th day of December,
1997.


                              ADVISORS SERIES TRUST


                             By /s/ Eric M. Banhazl*
                             -----------------------
                                 Eric M. Banhazl
                                    President

                  Pursuant to the  requirements  of the  Securities Act of 1933,
this Registration  Statement on Form N-14 has been signed below by the following
persons in the capacities and on the dates indicated.




/s/ Eric M. Banhazl*                  President, Principal Financial
- --------------------                  and Accounting Officer, and Trustee
Eric M. Banhazl                       



/s/ Walter E. Auch Sr.*               Trustee
- -----------------------
Walter E. Auch, Sr.



/s/ Donald E. O'Connor*               Trustee
- -----------------------
Donald E. O'Connor



/s/ George T. Wofford III*            Trustee
- --------------------------
George T. Wofford III



* /s/ Robert H. Wadsworth
- -------------------------
By: Robert H. Wadsworth
    Attorney in Fact
<PAGE>
                                INDEX TO EXHIBITS


        EXHIBIT
        NUMBER             EXHIBIT
- -----------------------    -----------------------------------------------------

        11                 Form  Opinion  of  Counsel   regarding   legality  of
                           issuance of shares and other matters.

        14(a)              Consent  of  Price   Waterhouse,   LLP,   Independent
                           Accountants.

        14(b)              Consent  of  McGladrey  &  Pullen,  LLP,  Independent
                           Accountants

        16                 Power of Attorney







                                   Exhibit 11

                           Form of Opinion of Counsel
                    regarding legality of issuance of shares
                               and other matters.

<PAGE>
                      PAUL, HASTINGS, JANOFSKY & WALKER LLP
                                 333 BUSH STREET
                      SAN FRANCISCO, CALIFORNIA 94104-2878

                            Telephone (415) 835-1600
                            Facsimile (415) 217-5333


                            __________________, 1997



Advisors Series Trust
4455 E. Camelback Road, Suite 261E
Phoenix, AZ  85018

Registration Statement on Form N-1A

Ladies and Gentlemen:

We have acted as counsel to Advisors  Series Trust,  a Delaware  business  trust
(the "Trust"),  in connection  with the Trust's  Registration  Statement on Form
N-1A filed with the Securities and Exchange  Commission on December 6, 1996 (the
"Registration  Statement")  and  relating  to the  issuance  by the  Trust of an
indefinite number of $0.01 par value shares of beneficial interest of one series
of the Trust,  _______________________________  (the "Shares")  pursuant to Rule
24f-2 under the Investment Company Act of 1940, as amended (the "Act").

In  connection  with this  opinion,  we have  assumed  the  authenticity  of all
records, documents and instruments submitted to us as originals, the genuineness
of all signatures, the legal capacity of all natural persons, and the conformity
to the originals of all records,  documents,  and instruments submitted to us as
copies. We have based our opinion on the following:

(a)       the Trust's  Agreement and Declaration of Trust dated as of October 3,
1996 (the "Declaration of Trust"), and the Trust's Certificate of Trust as filed
with the  Secretary of State of Delaware on October 3, 1996,  certified to us as
in effect on the date hereof;

(b)       the By-laws of the Trust;

(c) resolutions of the initial  Trustees of the Trust adopted by written consent
dated October 4, 1996, authorizing the issuance of the Shares;

(d)       the Registration Statement; and

(e)       a certificate of an officer of the Trust as to certain factual matters
relevant to this opinion.

Our opinion  below is limited to the federal law of the United States of America
and the  business  trust law of the State of  Delaware.  We are not  licensed to
practice  law in the State of  Delaware,  and we have  based our  opinion  below
solely on our review of Chapter 38 of Title 12 of the Delaware Code and the case
law   interpreting   such  Chapter  as  reported  in  Delaware  Code   Annotated
(__________)  and  updated  on Lexis  on  _________________,  1997.  We have not
undertaken  a review of other  Delaware  law or of any  administrative  or court
decisions in connection with rendering this opinion.  We disclaim any opinion as
to any law other than that of the  United  States of  America  and the  business
trust law of the State of  Delaware as  described  above,  and we  disclaim  any
opinion  as  to  any  statute,  rule,  regulation,  ordinance,  order  or  other
promulgation of any regional or local governmental authority.
<PAGE>
Based on the foregoing and our  examination  of such questions of law as we have
deemed  necessary and appropriate for the purpose of this opinion,  and assuming
that (i) all of the  Shares  will be issued  and sold for cash at the  per-share
public  offering  price  on the  date  of  their  issuance  in  accordance  with
statements in the Trust's Prospectus included in the Registration  Statement and
in accordance  with the  Declaration of Trust,  (ii) all  consideration  for the
Shares  will be  actually  received  by the  Trust,  and  (iii)  all  applicable
securities  laws will be complied with, it is our opinion that,  when issued and
sold  by  the  Trust,  the  Shares  will  be  legally  issued,  fully  paid  and
nonassessable.

This opinion is rendered to you in connection  with the  Registration  Statement
and is solely for your  benefit.  This opinion may not be relied upon by you for
any other purpose or relied upon by any other person, firm, corporation or other
entity for any  purpose,  without our prior  written  consent.  We disclaim  any
obligation  to advise you of any  developments  in areas covered by this opinion
that occur after the date of this opinion.

We hereby  consent to (i) the  reference  to our firm under the  caption  "Legal
Counsel" in the Prospectus of the Trust included in the Registration  Statement,
and (ii) the filing of this opinion as an exhibit to the Registration Statement.

Very truly yours,







                                  Exhibit 14(a)

                        Consent of Price Waterhouse, LLP,
                            Independent Accountants.

<PAGE>
Consent of Independent Accountants


We hereby  consent to the  incorporation  by  reference  in the  Combined  Proxy
Statement  and   Prospectus   and  the   Statement  of  Additional   Information
constituting   parts  of  this   registration   statement   on  Form  N-14  (the
"Registration Statement") of our report dated December 10, 1996, relating to the
financial  statements  and  selected  per share  data and  ratios for a share of
beneficial interest outstanding  appearing in the October 31, 1996 Annual Report
to Shareholders of Vista American Value Fund (one of the portfolios constituting
Mutual Fund Group)(the  "Report"),  which is also incorporated by reference into
the  Registration  Statement.  We also consent to the  reference to us under the
heading  "Experts" in the  Combined  Proxy  Statement  and  Prospectus.  We also
consent to the  incorporation  by reference of the Report in the  Prospectus and
the Statement of Additional  Information  constituting  parts of Post  Effective
Amendment  No. 38 to the  registration  statement  on Form  N-1A of Mutual  Fund
Group, which are incorporated by reference in the Registration Statement



Price Waterhouse LLP
1177 Avenue of the Americas
New York, New York
December 8, 1997







                                  Exhibit 14(b)

                       Consent of McGladrey & Pullen, LLP,
                             Independent Accountants

<PAGE>
                    [LETTERHEAD OF MCGLADREY & PULLEN, LLP]


                        CONSENT OF INDEPENDENT AUDITORS



We hereby  consent to the reference to our firm in the  'Statement of Additional
Information'  included as part of the Combined Proxy Statement and Prospectus of
Vista American Value Fund, a series of Mutual Fund Group and Van Deventer & Hoch
American Value Fund, a series of Advisors Series Trust being filed on Form N-14.


                                        /s/ McGladrey & Pullen, LLP


New York, New York
November 19, 1997







                                   Exhibit 16

                                Power of Attorney
<PAGE>
                               POWER OF ATTORNEY
                                      FOR
                       SECURITIES AND EXCHANGE COMMISSION
                              AND RELATED FILINGS

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

         The  undersigned  Trustees and  officers of Advisors  Series Trust (the
"Trust") hereby appoint Robert H. Wadsworth,  his attorney-in-fact and agent, in
all  capacities,   to  execute  and  to  file  any  documents  relating  to  the
Registration  Statements  on Form N-14  under  the  Investment  Act of 1940,  as
amended, and under the Securities Act of 1933, as amended, and under the laws of
all states and other domestic and foreign  juristictions,  including any and all
amendments  thereto,  covering  the  registration  and the sale of shares by the
Trusts,  including all exhibits and any and all  documents  required to be filed
with respect thereto with any regulatory authority,  including  applications for
exemptive orders, rulings or filings of proxy materials. Each of the undersigned
grants to said attorney  full  authority to do every act necessary to be done in
order to effectuate the same as fully, to all intents and purposes,  as he could
do if personally present,  thereby ratifying all that said  attorney-in-fact and
agents may lawfully do or cause to be done by virtue therof.

         The  undersigned  Trustees  and Officers  hereby  execute this Power of
Attorney as of this 17th day of December, 1997.


                                        President, Principal Financial 
- ------------------------------------    and Accounting Officer, and Trustee
Eric M. Banhazl



- ------------------------------------
Walter E. Auch, Sr.                     Trustee




- ------------------------------------
Donald E. O'Connor                      Trustee




- ------------------------------------
George T. Wofford III                   Trustee



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