ADVISORS SERIES TRUST
N-14/A, 1998-03-30
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     As filed with the Securities and Exchange Commission on March 27, 1998
                                                            File Nos.: 811-07959
                                                                       333-42505
    

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

                                    FORM N-14

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

   
                         PRE-EFFFECTIVE AMENDMENT NO. 2
    

                              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.  This  Registration  Statement shall
hereafter  become effective in accordance with the provisions of 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. 15 of Advisors Series Trust,  filed December
16, 1997 (SEC File No. 33-17391):

         Prospectus for Van Deventer & Hoch  American Value Fund, dated December
         16, 1997

         Statement of  Additional Information  for Van Deventer & Hoch  American
         Value Fund, dated December 16, 1997

From Post-Effective Amendment  No. 50 of Mutual  Fund Group, filed  February 28,
1998 (SEC File No. 33-14196):

         Prospectus  for Vista  American  Value Fund (with other funds of Mutual
Fund Group), dated February 28, 1998

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 31, 1997,  as contained in the Annual  Report for Mutual
         Fund Group dated as of and for the periods ended October 31, 1997.
    
<PAGE>
                    -----------------------------------------

                                     PART A

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

                    NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                                       OF
                         CHASE VISTA AMERICAN VALUE FUND
                            TO BE HELD APRIL 23, 1998

To the Shareholders of Chase Vista American Value Fund:

                  NOTICE IS HEREBY GIVEN that a special  meeting (the "Meeting")
of  shareholders  of Chase 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 April 23, 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 March
27, 1998 (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


                                       -------------------------
                                       Richard Baxt, Secretary

April 3, 1998
    

                  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
   
                         Chase Vista American Value Fund

                                       and

                              ADVISORS SERIES TRUST
                     Van Deventer & Hoch American Value Fund

                     COMBINED PROXY STATEMENT AND PROSPECTUS
                     ---------------------------------------
                              DATED: April 3, 1998

         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 Chase Vista American
Value Fund (the "Fund"), a separate series of the Trust, to be held on April 23,
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) 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).
                                       -1-
<PAGE>
         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  Prospectus  and the
Statement of Additional  Information  for the Acquiring  Fund dated December 16,
1997) was  initially  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
16, 1997,  the  Prospectus  for the Fund dated  February 27, 1998,  the combined
Statement  of  Additional  Information  relating to the Fund (as well as certain
other mutual funds in the Chase Vista  Funds) dated  February 27, 1998,  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 16, 1997, and a copy of the Prospectus of the Fund dated February
27, 1998 accompanies this document.  The Statement of Additional  Information of
the  Acquiring  Fund dated  December 16, 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  Chase  Vista  Funds)  dated
February 27, 1998 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, 1997, containing audited financial statements of the Fund previously
has been mailed to each shareholder entitled to vote at the Meeting.  Additional
copies of that Annual Report 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 April 3, 1998.
    

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.

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
                                       -2-
<PAGE>
GOVERNMENT  AGENCY.  INVESTMENTS  IN MUTUAL FUNDS  INVOLVE  RISK,  INCLUDING THE
POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.
                                       -3-
<PAGE>
                                TABLE OF CONTENTS
   
<TABLE>
<S>                                                                                                  <C>
I.  INTRODUCTION......................................................................................6
         A.       THE TRANSACTION.....................................................................6
         B.       THE PROPOSAL........................................................................7
         C.       SHARES AND VOTING...................................................................8

II. THE PROPOSAL:
         APPROVAL OF THE PROPOSED REORGANIZATION.....................................................10
         A.       DESCRIPTION OF THE PROPOSED REORGANIZATION.........................................10
                  1.       The Reorganization........................................................10
                  2.       Effect of the Reorganization..............................................11
                  3.       Federal Income Tax Consequences...........................................11
                  4.       Description of the Acquiring Fund Shares..................................12
                  5.       Capitalization............................................................12
         B.       COMPARISON OF THE FUNDS............................................................12
                  1.       Investment Objectives and Policies........................................12
                  2.       Investment Restrictions...................................................13
                  3.       Comparative Summary of Investor Costs.....................................16
                  4.       Comparative Performance Information.......................................17
                  5.       Advisory Fees, Sub-Advisory Fees and Other Expenses.......................18
                  6.       Distribution and Shareholder Services.....................................18
                  7.       Distribution Plans........................................................19
                  8.       Administration, Custody, Fund Accounting and
                               Transfer Agency Services..............................................19
                  9.       Shareholder Servicing Agents..............................................20
                  10.      Purchase Procedures.......................................................21
                  11.      Redemption and Exchange Procedures........................................22
                  12.      Income Dividends, Capital Gains Distributions and Taxes...................22
                  13.      Portfolio Transactions and Brokerage Commissions..........................23
                  14.      Shareholders' Rights......................................................23
         C.       RISK FACTORS.......................................................................24
         D.       RECOMMENDATION OF THE BOARD OF TRUSTEES............................................24
                  1.       The Legal Framework.......................................................24
                  2.       The Trustees' Considerations..............................................25
         E.       DISSENTERS' RIGHTS OF APPRAISAL....................................................26
         F.       FURTHER INFORMATION ABOUT THE FUND AND THE ACQUIRING
                  FUND...............................................................................27
         G.       VOTE REQUIRED......................................................................27

III. MISCELLANEOUS ISSUES............................................................................28
         A.       OTHER BUSINESS.....................................................................28
         B.       NEXT MEETING OF SHAREHOLDERS.......................................................28
         C.       LEGAL MATTERS......................................................................28
         D.       EXPERTS............................................................................28
</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 Chase  Vista 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.,
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 closed on December
31, 1997.  After the Sale,  key members of the VDH  portfolio  management  team,
including Richard  Trautwein,  have continued to be responsible for managing the
day-to-day affairs of VDH, which will be the adviser to the Acquiring Fund after
the Reorganization.

         Van  Deventer & Hoch is no longer  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 Chase Vista 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 thirteen  effective
series and one series  that is not yet  effective,  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 April 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
                                       -5-
<PAGE>
consummation  of the  Reorganization  to the 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.

         D. F. King & Co., Inc., a proxy solicitation firm, has been retained to
assist in the  solicitation  of the proxy vote.  The expenses of retaining D. F.
King & Co., Inc., will be borne by Chase and/or VDH. D. F. King & Co., Inc., may
call  shareholders  to ask if they would be willing to have their votes recorded
by  telephone.  The  telephone  voting  procedure  is designed  to  authenticate
shareholders' identities, to allow shareholders to authorize the voting of their
shares  in  accordance  with  their  instructions  and  to  confirm  that  their
instructions  have been recorded  properly.  The Acquired Fund and the Acquiring
Fund have been advised by counsel that these  procedures are consistent with the
requirements of applicable law. A shareholder voting by telephone would be asked
for his or her social security number or other identifying information and would
be given an  opportunity  to  authorize  proxies  to vote his or her  shares  in
accordance  with his or her  instructions.  To  insure  that  the  shareholder's
instructions have been recorded correctly, he or she will receive a confirmation
of such  instructions  in the mail. The  confirmation  is a replica of the proxy
card but with marks  indicating how the  shareholder  voted along with a special
toll-free number which will be available in the event the shareholder  wishes to
change  or  revoke  the  vote.  Although  a  shareholder's  vote may be taken by
telephone,  each shareholder will receive a copy of this proxy statement and may
vote by mail using the enclose proxy card.

         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 Chase Vista
                                       -6-
<PAGE>
Fund or enjoy any of the other  shareholder  privileges  associated with being a
shareholder of a Chase Vista Fund.

         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 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
eighteen  operating  series,  or funds,  outstanding,  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 March
27,  1998  (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.  The persons named in
the proxy will vote in favor of such adjournment those shares which they
                                       -7-
<PAGE>
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  currently  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
16, 1997, and, in the case of the Fund, the Prospectus dated February 27, 1998).
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 October 31,
1997,  the  value of the  aggregate  net  assets  of the Fund was  approximately
$11,577,427,  the total number of outstanding  Fund shares was 737,783,  and the
net asset  value of each  Acquiring  Fund Share was  $15.69.  Therefore,  if the
Effective Date had been October 31, 1997, the Acquiring Fund would have issued a
total of 737,783 Acquiring Fund Shares to the Fund, and the Fund would then have
redeemed each of its then outstanding  shares in exchange for one Acquiring Fund
Share.
    

         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
Reorganization,  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, 1997, 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**        $11,577,427      $11,577,427

                                                  
Shares outstanding*...................................        0**            737,783          737,783
                                                  
Net asset value per share.............................        0**             $15.69           $15.69
- ------------------------------------------------------
</TABLE>
                                              
*        Each Fund is authorized to issue an indefinite number of shares.

**       The Acquiring Fund is a new series of Advisors Series Trust. 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  (other  than  industrial
development bonds) 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.
                                      -14-
<PAGE>
   
         3.       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>
                                                         Chase Vista American       Van Deventer & Hoch
                                                              Value Fund            American Value Fund
                                                              ----------            -------------------
                                                                                        (pro forma)
<S>                                                             <C>                       <C>    
SHAREHOLDER TRANSACTION EXPENSES:
Maximum Sales Charge Imposed on Purchases (as a
percentage of offering price)                                    None                       None
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)               0.10%*                    0.00%**
 12b-1 Fee (after estimated waiver)                             0.00%*                    0.00%**
 Shareholder Servicing Fee (after estimated waiver)             0.10%*                    0.00%**
 Other Expenses                                                 1.12%*                    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  1.12%,
         respectively,  and  Total  Fund  Operating  Expenses  would  be  2.32%.
         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 Chase 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.
                                      -15-
<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

Chase Vista American Value Fund                  $13                   $42

Van Deventer & Hoch American                     $11                   $33
Value 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.

         4.       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, 1997. The Acquiring Fund is a new series that is not
yet in operation. Therefore, no performance information is available.



                                           Average Annual Total Return
                                           ---------------------------

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


Chase Vista American Value             21.67%                       21.72%
Fund(3)

Van Deventer & Hoch                     N/A                         N/A
American Value Fund


Additional  performance  information on the Fund may be found in its 1997 Annual
Report to Shareholders.

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

(1)      Reflects return for the one-year period ended October 31, 1997.

(2)      Reflects  return since  inception on February 3, 1995,  through October
         31, 1997.  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 Chase  Vista  American  Value  Fund  includes  the
         performance  of  its   predecessor   fund  for  periods  prior  to  the
         consummation of the  reorganization of the Hanover Chase Vista American
         Value  Fund into the  Chase  Vista  American  Value  Fund.  Performance
         presented for the Fund is based on the
                                      -16-
<PAGE>
         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.

         5.       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 Trust 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.

         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). Absent
the fee waiver, the Acquiring Fund's total operating expenses would be 2.25%.

         For the period ended  October 31,  1997,  Chase was entitled to receive
advisory fees of $75,380 from the Fund, of which,  $66,883 of advisory fees were
waived by Chase.

         6.       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.
                                      -17-
<PAGE>
         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.

         7.       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 Chase Vista  Funds,  and  activities
intended to promote the Fund's shares may also benefit other Chase 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  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.

         8.       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.
                                      -18-
<PAGE>
         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.

         9.       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
                                      -19-
<PAGE>
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 Chase 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.

         10.      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 Chase  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 Chase 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.
                                      -20-
<PAGE>
         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 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.
                                      -21-
<PAGE>
         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
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
                                      -22-
<PAGE>
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
                  -------------------

         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 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
                                      -23-
<PAGE>
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 VDH 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,  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 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.
                                      -24-
<PAGE>
         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.

         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 16, 1997,  subject to the forward
pricing requirements of Rule 22c-1 under the 1940 Act.
                                      -25-
<PAGE>
F.       FURTHER INFORMATION ABOUT THE FUND AND THE ACQUIRING FUND

         Further  information  about  the  Fund  is  contained  in  its  current
Prospectus  dated February 27, 1998 and the Statement of Additional  Information
dated February 27, 1998,  which are  incorporated  herein by reference.  Further
information  about the  Acquiring  Fund is  contained  in its  Prospectus  dated
December 16, 1997,  and the Statement of Additional  Information  dated December
16, 1997.  Documents that relate to the Fund are available,  without charge,  by
writing to the Chase 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.
    

         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.
                                      -26-
<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  Chase  Vista  American  Value  Fund
incorporated   in  this   Prospectus  by  reference  to  the  Annual  Report  to
Shareholders  for the year ended October 31, 1997,  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
                                      -27-
<PAGE>



                                    EXHIBIT A

                      Agreement and Plan of Reorganization


















                                      -28-
<PAGE>
                      AGREEMENT AND PLAN OF REORGANIZATION



   
                  THIS AGREEMENT AND PLAN OF REORGANIZATION  (this  "Agreement")
is made as of this 31st 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 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
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Acquiring Fund Shares to the shareholders of the Acquired Fund in liquidation of
the Acquired 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.
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         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
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of such security.


3.       CLOSING(S) AND CLOSING DATE

   
         3.1      The  Closing for the  Reorganization  shall occur on April 30,
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 Simpson Thacher & Bartlett,  425 Lexington Avenue, New York, New York
10017, 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.
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<PAGE>
         4.2      MFG,  on  behalf  of the  Acquired  Fund,  covenants  that the
Acquiring  Fund Shares 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
                                       5
<PAGE>
limited to any Form N-SAR and Rule 24f-2  filings  with  respect to the Acquired
Fund,  after the 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;
                                       6
<PAGE>
                  (d)      Except  as  previously  disclosed in  writing to  the
Acquired Fund, no 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
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                  (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
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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,  1997,  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.
                                       12
<PAGE>
8.       FURTHER CONDITIONS  PRECEDENT TO OBLIGATIONS OF THE  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
                                       13
<PAGE>
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;  (h) the holding period of the
Acquiring  Fund Shares  received by the  Fundshareholders  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.
                                       14
<PAGE>
11.      TERMINATION

         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:
                                       16
<PAGE>
         The terms "Mutual Fund Group" and "MFG Trustees"  refer,  respectively,
to the trust 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
                                           Chase 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
                         CHASE VISTA AMERICAN VALUE FUND
                                ON APRIL 23, 1998


         The  undersigned  hereby  appoints Vickie Preston and Colleen McCoy, 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 Chase 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 April 23, 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
                         CHASE VISTA AMERICAN VALUE FUND
                                      ___

                     One Chase Manhattan Plaza, Third Floor
                            New York, New York 10081
                                 1-800-34-VISTA
                                     ______

                       STATEMENT OF ADDITIONAL INFORMATION
                               DATED APRIL 3, 1998
                     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 April 3, 1998,  which has been filed by Advisors  Series Trust
("AST Trust") in connection  with a Special Meeting of Shareholders of the Chase
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 27, 1998
, the Acquiring Fund's Prospectus dated December 16, 1997, and the Annual Report
of the Fund for the fiscal year ended October 31, 1997. The Fund's  Statement of
Additional  Information  (which includes other series of the Chase Vista Funds),
dated  February 27,  1998,  and the  Acquiring  Fund's  Statement of  Additional
Information  dated  December 16,  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 April 23, 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 February
27,  1998,   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 16, 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, 1997

 Shares            Issuer                                             $ Value
- --------------------------------------------------------------------------------

            Common Stock -- 89.0%
            ---------------------
            Aerospace -- 2.3%
 5,000      Raytheon Co.                                              271,250
                                                                      -------

            Agricultural Production/Services -- 2.4%
12,600      Archer-Daniels-Midland Co.                                280,350
                                                                      -------

            Automotive - 1.9%
 7,000      Genuine Parts Co.                                         219,187
                                                                      -------

            Banking -- 6.8%
 4,270      Banc One Corp.                                            222,574
 2,800      BankAmerica Corp.                                         200,200
 4,000      H.F. Ahmanson & Co.                                       236,000
 1,200      J.P. Morgan & Company, Inc.                               131,700
                                                                      -------
                                                                      790,474
                                                                      -------

            Computers Software -- 2.0%
 6,000      Electronic Data Systems Corp.                             232,125
                                                                      -------

            Computers/Computer Hardware -- 1.1%
 2,000      Hewlett-Packard Co.                                       123,375
                                                                      -------

            Consumer Products -- 2.0%
 7,500      Fleetwood Enterprises, Inc.                               227,344
                                                                      -------

            Diversified - 4.7%
 3,400      Cognizant Corp.                                           133,237
 4,500      Fluor Corp.                                               185,063
 5,000      Tenneco Inc.                                              224,688
                                                                      -------
                                                                      542,988
                                                                      -------
            Electronics/Electrical Equipment -- 5.7%
10,000      EG&G, Inc.                                                206,875
 4,000      Motorola, Inc.                                            247,000

                                      B-3
<PAGE>
VD&H American Value Fund
Pro Forma Portfolio of Investments October 31, 1997

 Shares            Issuer                                             $ Value
- --------------------------------------------------------------------------------

 4,000      Tecumseh Products Co., Class A                            207,500
                                                                      -------
                                                                      661,375
                                                                      -------
            Environmental Services -- 1.4%
 7,000      Waste Management Inc.                                     163,625
                                                                      -------
                                                                    
            Financial Services -- 2.7%                              
 6,400      Federal National Mortgage Association                     310,000
                                                                      -------
                                                                    
            Health Care/Health Care Services -- 1.1%                
 4,400      Bard (C.R.), Inc.                                         122,100
                                                                      -------
                                                                    
            Insurance -- 5.5%                                       
 5,000      Allstate Corp.                                            414,687
 4,800      Safeco Corp.                                              228,600
                                                                      -------
                                                                      643,287
                                                                      -------
                                                                    
            Manufacturing -- 3.7%                                   
 6,500      ITT Industries, Inc.                                      205,156
 8,200      Zero Corp.                                                220,375
                                                                      -------
                                                                      425,531
                                                                      -------
            Metals/Mining -- 1.3%                                   
 7,400      Cyprus Amax Minerals Co.                                  154,937
                                                                      -------
                                                                    
            Oil & Gas -- 10.3%                                      
 2,400      Atlantic Richfield Co., (ARCO)                            197,550
10,000      Enron Oil & Gas Co.                                       210,625
 9,500      Occidental Petroleum Corp.                                264,813
 5,600      Phillips Petroleum Co.                                    270,900
10,000      Union Pacific Resources Group, Inc.                       246,250
                                                                      -------
                                                                    1,190,138
                                                                    ---------
            Paper/Forest Products -- 8.9%                           
11,500      Longview Fibre Co.                                        182,563
15,000      Louisiana-Pacific Corp.                                   315,000
 5,000      Potlatch Corp.                                            249,375
 3,000      St. Joe Paper Co.                                         285,750
                                                                      -------
                                                                    1,032,688
                                                                    ---------
                                      B-4
<PAGE>
VD&H American Value Fund
Pro Forma Portfolio of Investments October 31, 1997

 Shares            Issuer                                             $ Value
- --------------------------------------------------------------------------------

            Pharmaceuticals -- 2.3%
 3,000      Merck & Company, Inc.                                     267,750
                                                                      -------

            Printing & Publishing -- 1.9%
 4,000      Tribune Co.                                               220,500
                                                                      -------
                                                                    
            Real Estate Investment Trust -- 2.3%                    
 9,674      BRE Properties, Inc., Class A                             265,430
                                                                      -------
                                                                    
            Retailing -- 9.1%                                       
 7,000      Albertson's, Inc.                                         258,125
 4,000      Dayton-Hudson Corp.                                       251,250
 4,600      Dillards, Inc., Class A                                   176,525
10,000      SUPERVALU, Inc.                                           366,250
                                                                      -------
                                                                    1,052,150
                                                                    ---------
            Shipping/Transportation -- 1.7%                         
 6,000      Norfolk Southern Corp.                                    192,750
                                                                      -------
                                                                    
            Telecommunications -- 2.5%                              
 6,000      AT&T Corp.                                                293,625
                                                                      -------
                                                                    
            Tire & Rubber -- 2.2%                                   
 4,000      Goodyear Tire & Rubber, Inc.                              250,500
                                                                      -------
                                                                    
            Utilities -- 1.5%                                       
 8,000      Central & South West Corp.                                172,500
                                                                      -------
                                                                    
            Wholesaling -- 1.7%                                     
 7,200      Reliance Steel & Aluminum Co.                             197,550
                                                                      -------
                                                        
- --------------------------------------------------------------------------------

Total Common Stock (Cost $7,731,397)                               10,303,529
- --------------------------------------------------------------------------------

Principal Amount
            Corporate Notes & Bonds FRN -- 3.2%
                                           B-5
<PAGE>
VD&H American Value Fund
Pro Forma Portfolio of Investments October 31, 1997

 Shares            Issuer                                             $ Value
- --------------------------------------------------------------------------------

              Financial Services  -- 3.2%
$370,500      Ford Motor Credit Corp. 5.50%, 11/04/97 (Cost             370,330
                                                                        -------

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

Total Long-Term Investments - (Cost $8,101,727)                      10,673,859
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Short-Term Investments -- 8.3%
- --------------------------------------------------------------------------------

              Commercial Paper -- 3.2%
              ------------------------
 368,400      General Electric Capital Corp., 5.52%, 11/12/97           367,779
                                                                        -------

              U.S. Treasury Securities -- 5.1%
              --------------------------------
              U.S. Treasury Bills
 263,000                  4.53%, 11/20/97                               262,371
  13,000                  4.60%, 11,20/97                                12,968
  48,000                  4.75%, 11/20/97                                47,880
 273,000                  4.77%, 11/20/97                               272,313
                                                                        -------
                                                                        595,532
                                                                        -------

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

Total Short-Term Investments-- (Cost $963,311)                          963,311
- --------------------------------------------------------------------------------

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

Total Investments 100.5%-- (Cost $9,065,038)                        $11,637,170
- --------------------------------------------------------------------------------

FRN = Floating Rate Notes:  the maturity  date shown is the next interest  reset
date; the rate shown is the rate in effect at October 31, 1997.

See notes to financial statements.
                                       B-6
<PAGE>
VD&H American Value Fund
Pro Forma Statement of Assets and Liabilities October 31, 1997 (Unaudited)
<TABLE>
<CAPTION>
                                                                                Pro
                                                                 Vista         Forma
                                                               American       Adjust-       Pro Forma
                                                              Value Fund       ments         Combined
                                                              ----------       -----         --------
<S>                                                           <C>           <C>            <C>        
ASSETS:
Investment securities, at value (Note 1)                      $11,637,170   $         0    $11,637,170
Cash                                                                  575             0            575
Receivables:
      Interest and Dividends                                       10,687             0         10,687
      Fund Shares Sold                                             10,000          (203)        10,000
Other assets                                                          203          (203)             0
                                                              -----------   -----------    -----------
      Total assets                                             11,658,635          (203)    11,658,432
                                                              -----------   -----------    -----------
LIABILITIES:
Accrued liabilities: (Note 2)
      Administration fees                                           1,533        (1,533)             0
      Distribution fees                                               102          (102)             0
      Investment advisory fees                                      1,022        (1,022)             0
      Shareholder servicing fees                                      920          (920)             0
      Custodian                                                     7,264        (7,264)             0
      Other                                                        70,367        10,638         81,005
                                                              -----------   -----------    -----------
             Total Liabilities                                     81,208          (203)        81,005
                                                              -----------   -----------    -----------
NET ASSETS:
Paid in capital                                                 7,566,673             0      7,566,673
Accumulated undistributed net investment income                   143,569             0        143,569
Accumulated undistributed net realized gain (loss) on           1,295,053             0      1,295,053
investment transactions
Net unrealized appreciation/depreciation of investments         2,572,132             0      2,572,132
                                                              -----------   -----------    -----------
            
Net Assets:                                                   $11,577,427             0    $11,577,427
                                                              -----------   -----------    -----------
Shares of beneficial interest outstanding ($.001 par value;
unlimited number of shares authorized):
Shares                                                            737,783             0        737,783
Shares:
      Net asset value, redemption price and Maximum           $     15.69             0    $     15.69
      offering price per share
      Cost of Investments                                     $ 9,065,038   $         0    $ 9,065,038

      *Net assets/shares outstanding
See notes to financial statements 
</TABLE>
                                       B-7
<PAGE>
VD&H American Value Fund
Pro Forma Statements of Operations
For the year ended October 31, 1997 (Unaudited)
<TABLE>
<CAPTION>
                                                                                          Pro Forma
                                                                                         Van Deventer
                                                            Vista                           & Hoch
                                                           American     Pro Forma          American
                                                          Value Fund    Adjustments          Fund
                                                          ----------    -----------          ----
<S>                                                       <C>            <C>               <C>       
INVESTMENT INCOME:
Dividend                                                  $  238,493     $        0        $  238,493
Interest                                                      64,864              0            64,864
                                                          ----------      ----------       ----------
      Total investment income                                303,357              0           303,357
                                                          ----------      ----------       ----------
EXPENSES: (Note 2)                                                                         
Administrative fees                                           16,153        (16,153) (a)            0
Distribution fees                                             26,921              0            26,921
Investment Advisory fees                                      75,380              0            75,380
Shareholder servicing fees                                    26,921              0            26,921
Custodian fees                                                16,895        (16,895) (b)            0
Printing and postage                                           6,059         (6,059) (b)            0
Professional fees                                             18,602        (18,602) (b)            0
Registration fees                                             40,624        (40,624) (b)            0
Transfer agent fees                                           23,373        (23,373) (b)            0
Trustees fees and expenses                                       538           (538) (b)            0
Other                                                         12,480        100,581  (b)      113,061
                                                          ----------      ----------       ----------
      Total Expenses                                         263,946        (21,663)          242,283
                                                          ----------      ----------       ----------
                                                                                           
      Less amounts waived (Note                              121,801          7,421  (c)      129,222
                                                          ----------      ----------       ----------
             Net expenses                                    142,145        (29,084)          113,061
                                                          ----------      ----------       ----------
                   Net investment income                     161,212         29,084           190,296
                                                          ----------      ----------       ----------
REALIZED AND UNREALIZED GAIN ON                                                            
INVESTMENTS:                                                                               
Net realized gain on investments                           1,299,496              0           500,892
Change in net unrealized appreciation on investments         600,844              0           716,130
                                                          ----------      ----------       ----------
      Net realized and unrealized gain on investments      1,900,340              0         1,217,022
                                                          ----------      ----------       ----------
             Net increase in net assets from operations   $2,061,552     $   29,084        $1,407,318
                                                          ==========      ==========       ==========
</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% from which management will
pay all operating expenses of the fund.
(c)  Reflects  management  agreement to waive all  management  fees until May 6,
1998.
                                       B-8
<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 Chase Vista American Value Portfolio at October 31, 1997 and for
the year then ended.

            The Pro Forma Statements give effect to the proposed transfer of all
assets and  liabilities of the Chase 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 Fund on October 31, 1997 in connection  with the proposed  reorganization,
the additional  shares (737,783) to be issued for the Chase Vista American Value
Fund were based on the October 31,  1997 net assets  ($11,577,427)  of the Chase
Vista Portfolio and the net asset value per share of such Fund ($15.69).


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 Chase 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 Chase 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
                                      B-9
<PAGE>
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. (5)

         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 LLP, Independent Accountants. (5)

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

         15     Inapplicable.

         16     Power of Attorney (6)
    

         (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.
<PAGE>
         (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)  Previously  filed with  Registration  Statement on Form N-14 (File
Nos. 811-07959, 333-42505) on December 17, 1997.

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.
<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 25th day of March, 1998.


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

      12            Form of Opinion of Counsel regarding tax matters.

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

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

                                   Exhibit 11

                               Opinion of Counsel
                    regarding legality of issuance of shares
                               and other matters.
<PAGE>
               [PAUL, HASTINGS, JANOFSKY & WALKER LLP LETTERHEAD]




                                 March 11, 1998


(415) 835-1600                                                       27361.84176




Advisors Series Trust
2025 East Financial Way, Suite 101
Glendora, CA  91741

         Re:      Van Deventer & Hoch American Value Fund opinion

Ladies and Gentlemen:

         We have acted as counsel to Advisors Series Trust, a Delaware  business
trust (the  "Trust"),  in  connection  with a  Post-Effective  Amendment  to the
Trust's  Registration  Statement  filed on Form  N-1A  with the  Securities  and
Exchange  Commission  (the  "Post-Effective  Amendment")  and  the  Registration
Statement  filed on Form N-14 with the Securities and Exchange  Commission  (the
"Proxy  Statement/Prospectus")  and  relating to the issuance by the Trust of an
indefinite  number  of $0.01  par  value  shares  of  beneficial  interest  (the
"Shares") of one series of the Trust:  Van Deventer & Hoch  American  Value Fund
(the "Fund").

         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 natural  persons and the
conformity to the originals of all records,  documents and instruments submitted
to us as copies.  We have  based our  opinion  upon our review of the  following
records, documents and instruments:

         (a)      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;
                                       1
<PAGE>
PAUL, HASTINGS, JANOFSKY & WALKER LLP

         (b)      the Trust's  Agreement and  Declaration of Trust dated October
                  3,  1996  (the  "Trust  Instrument"),  certified  to  us by an
                  officer of the Trust as being true and  complete and in effect
                  on the date hereof;

         (c)      the Bylaws of the Trust  certified  to us by an officer of the
                  Trust as being  true and  complete  and in  effect on the date
                  hereof;

         (d)      resolutions  of the Trustees of the Trust adopted at a meeting
                  on December 5, 1997, authorizing the establishment of the Fund
                  and the issuance of the Shares;

         (e)      the Post-Effective Amendment;

         (f)      the Proxy Statement/Prospectus; and

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

         In rendering our opinion  below,  we have not conducted an  independent
examination of the books and records of the Trust for the purpose of determining
whether  all of the Shares  were fully paid prior to their  issuance  and do not
believe it to be our obligation to do so.

         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  (the
"Delaware  Business  Trust Act") and the case law  interpreting  such Chapter as
reported in Delaware Laws Annotated (CSC The United States Corporation  Company,
April  1997) as  updated  on Lexis on March 6, 1998.  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.

         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  Post-Effective  Amendment
and in accordance  with the Trust  Instrument,  (ii) all  consideration  for the
Shares  will be  actually  received  by the  Trust,  and  (iii)  all  applicable
securities  laws will be complied with, then it is our opinion that, when issued
and sold by the  Trust,  the  Shares  will be  legally  issued,  fully  paid and
nonassessable.
                                       2
<PAGE>
PAUL, HASTINGS, JANOFSKY & WALKER LLP LETTERHEAD

         This opinion is rendered to you in connection  with the  Post-Effective
Amendment  and the Proxy  Statement/Prospectus  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.

                                 Sincerely yours,



                                 /s/ PAUL, HASTINGS, JANOFSKY & WALKER LLP
                                       3

                                   Exhibit 12

                           Form of Opinion of Counsel
                             Regarding Tax Matters.
<PAGE>
FORM OF OPINION

                                 LAW OFFICES OF
                     PAUL, HASTINGS, JANOFSKY & WALKER LLP
                             345 CALIFORNIA STREET
                      SAN FRANCISCO, CALIFORNIA 94104-2635
                            TELEPHONE (415) 835-1600
                            FACSIMILE (415) 217-5333
                             INTERNET www.phjw.com

                                [April __, 1998]

(415) 835-1600                                                       27361.84176


Van Deventer & Hoch American Value Fund
800 North Brand Blvd., Suite 300
Glendale, California 91203
Vista American Value Fund
c/o Colleen McCoy
The Chase Manhattan Corporation
One Chase Square, Tower 7
Rochester, New York 14643

       Re:   Reorganization of Van Deventer & Hoch American Value Fund and Vista
             American Value Fund

Ladies and Gentlemen:

You have requested our opinion as counsel for Advisors  Series Trust, a Delaware
business  trust ("AST"),  with respect to certain  Federal income tax matters in
connection with the  reorganization  by and between Van Deventer & Hoch American
Value Fund, a series of AST  ("Acquiring  Fund") and Vista  American  Value Fund
("Acquired  Fund"), a series of Mutual Fund Group ("MFG"),  whereby (i) Acquired
Fund will transfer substantially all of its assets to Acquiring Fund in exchange
solely for voting shares of Acquiring Fund, (ii) Acquired Fund will  distribute,
in complete  liquidation,  such shares to the  shareholders  of Acquired Fund in
exchange  for  their  shares in  Acquiring  Fund and  (iii)  Acquired  Fund will
dissolve  as soon  as  practicable  thereafter.  This  opinion  is  rendered  in
connection  with  the  transaction  described  in  the  Agreement  and  Plan  of
Reorganization  dated  December  31,  1997,  by and between  Acquiring  Fund and
Acquired  Fund (the  "Reorganization  Agreement"),  and  adopts  the  applicable
defined terms therein, which Reorganization  Agreement is substantially the same
as the  Agreement  and Plan of  Reorganization  attached to the  Combined  Proxy
Statement and Prospectus dated April 3, 1998, as Appendix A. This letter and the
opinions  expressed  herein are for delivery to Acquiring Fund and Acquired Fund
and may be  relied  upon only by  Acquiring  Fund and  Acquired  Fund and by the
shareholders  of  Acquiring  Fund and  Acquired  Fund.  This opinion also may be
disclosed by Acquiring Fund, Acquired Fund or any such shareholder in connection
with an audit or other  administrative  proceeding  before the Internal  Revenue
Service  (the  "Service")  affecting  Acquiring  Fund,  Acquired  Fund  or  such
shareholder  or in  connection  with any  judicial  proceeding  relating  to the
Federal,  state or local tax liability of Acquiring  Fund,  Acquired Fund or any
such  shareholder.

For  purposes  of this  opinion we have  assumed  the truth and  accuracy of the
following facts:

o    AST was duly  organized  under  the laws of the State of  Delaware,  and is
     validly  existing and in good standing under the laws of that State. AST is
     duly registered  under the Investment  Company Act of 1940, as amended (the
     "1940 Act"), as an open-end management investment company.

o    Acquiring Fund is a new series of AST duly established under the law of the
     State of Delaware,  and is validly  existing  under the laws of that State.
     Acquiring  Fund has  only one  class  of  stock,  none of which is  issued.
     Acquiring  Fund has an registered an indefinite  number of shares of voting
     Capital Stock,  par value $0.01 per share, of which no shares are currently
     outstanding.
                                       2
<PAGE>
o    MFG was duly organized under the laws of the State of Massachusetts, and is
     validly  existing and in good standing under the laws of that State. MFG is
     duly registered  under the 1940 Act, as an open-end  management  investment
     company.

o    Acquired  Fund is a series  of MFG duly  established  under the laws of the
     State of  Massachusetts,  and is  validly  existing  under the laws of that
     State. Acquired Fund has only one class of stock, which is widely held. All
     Acquired  Fund  shares  sold  have  been  sold  pursuant  to  an  effective
     Registration  Statement of the Company  filed under the  Securities  Act of
     1933,  as amended (the "1933 Act"),  except for any shares sold pursuant to
     an applicable exemption thereunder.  Acquired Fund has an indefinite number
     of shares of voting  Capital  Stock,  par value $0.001 per share,  of which
     737,783 shares were  outstanding as October 31, 1997, and each  outstanding
     share of Acquired Fund is fully paid,  non-assessable,  fully  transferable
     and has full voting  rights.  The shares of Capital Stock of Acquiring Fund
     issued  pursuant  to the  Reorganization  Agreement  will  be  fully  paid,
     non-assessable, freely transferable and have full voting rights.

For valid  business  purposes,  the  following  transaction  will take  place in
accordance  with  the  laws  of  the  State  of  Delaware  and  pursuant  to the
Reorganization Agreement:

     (a)  On the date of the closing (the  "Closing  Date"),  Acquired Fund will
          transfer to Acquiring Fund  substantially all of the property,  assets
          and goodwill of  Acquiring  Fund solely in exchange for that number of
          Acquiring  Fund shares of beneficial  interest  calculated by dividing
          the aggregate  value of Acquired  Fund's assets by the net asset value
          per share of Acquiring  Fund, all such values  determined as set forth
          in Section 1.1 of the  Reorganization  Agreement and the assumption by
          Acquiring Fund of the liabilities of Acquired Fund.

     (b)  Acquired Fund will distribute, in complete liquidation,  all Acquiring
          Fund shares to the  shareholders  of Acquired  Fund in  proportion  to
          their respective interests in Acquired Fund.

     (c)  Acquired  Fund  will  wind up and  dissolve  as  soon  as  practicable
          thereafter.  

In rendering  the opinions  stated  below,  we have examined and relied upon the
following, assuming the truth and accuracy of any statements contained therein:

     (1)  The Reorganization Agreement.

     (2)  The Combined Proxy Statement and Prospectus of MFG and AST dated April
          3, 1998.

     (3)  AST's Registration Statement on Form N-14 as filed with the Securities
          and Exchange Commission on March 27, 1998.

     (4)  The Statement of Additional Information of MFG and AST, dated December
          15, 1997.
                                       3
<PAGE>
     (5)  Such  other  documents,  records  and  instruments  as we have  deemed
          necessary in order to enable us to render the opinions  referred to in
          this letter.

For purposes of rendering the opinions  stated below, we have in addition relied
upon the following representations by AST on behalf of Acquiring Fund and by MFG
on behalf of Acquired Fund, as applicable:

     (A)  The fair market value of the shares of Acquiring  Fund received by the
          shareholders of Acquired Fund will be approximately  equal to the fair
          market value of Acquired Fund shares surrendered in the exchange.  The
          shareholders of Acquired Fund will receive no consideration other than
          Acquiring Fund shares in exchange for their Acquired Fund shares.

     (B)  There is no plan or intention by the shareholders of Acquired Fund who
          owns  5% or more  of  Acquired  Fund  shares,  and to the  best of the
          knowledge of the  management of the Acquired Fund or MFG,  there is no
          plan or intention on the part of any  shareholders of Acquired Fund to
          sell,  exchange,  or otherwise  dispose of a number of Acquiring  Fund
          shares  received in the  transaction  that would reduce  Acquired Fund
          shareholders' ownership of Acquiring Fund shares to a number of shares
          having a value, as of the date of the transaction, of less than 50% of
          the value of all of the formerly  outstanding  shares of Acquired Fund
          as of the same date.  For purposes of this  representation,  shares of
          Acquired Fund  exchanged for cash or other  property,  surrendered  by
          dissenters,  or  exchanged  for cash in lieu of  fractional  shares of
          Acquiring  Fund,  have been treated as outstanding  shares of Acquired
          Fund  on  the  date  of  the  transaction.  Further,  in  making  this
          representation,  the Acquired Fund and MFG have considered both shares
          of  Acquired  Fund and  shares  of  Acquiring  Fund  that  were  sold,
          redeemed,  or otherwise  disposed of by the  shareholders  of Acquired
          Fund (except for shares which were required to be redeemed by Acquired
          Fund or  Acquiring  Fund in the  ordinary  course of their  respective
          businesses as series of an investment company).

     (C)  Acquiring  Fund will  acquire at least 90% of the fair market value of
          the net assets and at least 70% of the fair market  value of the gross
          assets held by Acquired Fund immediately prior to the transaction. For
          purposes of this representation,  amounts used by Acquired Fund to pay
          its  reorganization  expenses,   amounts  paid  by  Acquired  Fund  to
          shareholders  who receive cash or other property,  and all redemptions
          and distributions  (except for distributions and redemptions occurring
          in the  ordinary  course of Acquired  Fund's  business as a management
          investment  company) made by Acquired Fund  immediately  preceding the
          transfer   have  been   included  as  assets  of  Acquired  Fund  held
          immediately prior to the transaction.

     (D)  Acquiring Fund has no plan or intention to reacquire any of its shares
          issued in the transaction.
                                       4
<PAGE>
     (E)  Acquiring  Fund has no plan or intention to sell or otherwise  dispose
          of any of the assets of Acquired  Fund  acquired  in the  transaction,
          except for dispositions made in the ordinary course of its business as
          a series of an investment company.

     (F)  In  pursuance  of the  plan  of  reorganization,  Acquired  Fund  will
          distribute  as soon as  practicable  the shares of  Acquiring  Fund it
          receives in the transaction.

     (G)  The  liabilities  of Acquired  Fund assumed by Acquiring  Fund and the
          liabilities  to which  the  transferred  assets of  Acquired  Fund are
          subject were incurred by Acquired  Fund in the ordinary  course of its
          business  and do not  exceed  the  adjusted  tax  basis of the  assets
          transferred to the Acquired Fund.

     (H)  Acquired  Fund has  continued  its historic  business  enterprise in a
          substantially unchanged manner.

     (I)  Following the  transaction,  Acquiring Fund will continue the historic
          business of  Acquired  Fund or use a  significant  portion of Acquired
          Fund's historic business assets in a business.

     (J)  At  the  time  of  the  transaction,   Acquiring  Fund  did  not  have
          outstanding  any warrants,  options,  convertible  securities,  or any
          other type of right  pursuant to which any person could  acquire stock
          in Acquiring  Fund that, if exercised or  converted,  would affect the
          Acquired  Fund  shareholder's  acquisition  or retention of control of
          Acquiring  Fund,  as defined in Section  368(a)(2)(H)  of the Internal
          Revenue Code of 1986, as amended (the "Code").

     (K)  There is no indebtedness  existing between Acquired Fund and Acquiring
          Fund that was issued, acquired, or will be settled at a discount.

     (L)  Acquired Fund and  Acquiring  Fund have been at all times prior to the
          Closing Date,  and will be at the Closing Date,  regulated  investment
          companies as defined in Section 851 of the Code.

     (M)  Acquiring Fund does not own, directly or indirectly,  nor has it owned
          during the past five  years,  directly  or  indirectly,  any shares of
          Acquired Fund.

     (N)  Acquired Fund's shareholders will be in control (within the meaning of
          Section  368(a)(2)(H) of the Code) of Acquiring Fund immediately after
          the transfer.

     (O)  The fair market value of the assets of Acquired  Fund  transferred  to
          Acquiring Fund will equal or exceed the sum of the liabilities assumed
          by Acquiring Fund,  plus the amount of  liabilities,  if any, to which
          the transferred assets are subject.
                                       5
<PAGE>
     (P)  Acquired Fund is not under the jurisdiction of a court in a case under
          Title 11 of the United States Code or a receivership,  foreclosure, or
          similar proceeding in a Federal or state court.

     (Q)  Acquiring Fund and Acquired Fund met the  requirements  of a regulated
          investment company as defined in Section  368(a)(2)(F)(i)  and (ii) of
          the Code.  

Our  opinions set forth in this letter are based upon the Code,  regulations  of
the Treasury Department,  published administrative  announcements and rulings of
the Service and court decisions, all as of the date of this letter. Based on the
foregoing facts and representations, and provided that the transaction will take
place in accordance with the terms of the Reorganization  Agreement, and further
provided  that  Acquired  Fund  distributes  its  remaining  assets  as  soon as
practicable, we are of the opinion that:

     1.   The acquisition by Acquiring Fund of  substantially  all of the assets
          of Acquired  Fund solely in exchange  for voting  shares of  Acquiring
          Fund,  followed  by both  the  distribution  by  Acquired  Fund to its
          shareholders of such shares, in complete liquidation of Acquired Fund,
          and the  dissolution of Acquired Fund, as described  above,  will be a
          reorganization within the meaning of Section 368(a)(1)(D) of the Code.
          Acquired  Fund  and  Acquiring  Fund  will  each  be  "a  party  to  a
          reorganization" within the meaning of Section 368(b) of the Code.

     2.   No gain or loss will be  recognized by Acquired Fund upon the transfer
          of  substantially  all its assets to Acquiring Fund in exchange solely
          for voting  shares of Acquiring  Fund and the  assumption by Acquiring
          Fund of Acquired  Fund's  liabilities  pursuant to Sections 361(a) and
          357(a) of the Code.

     3.   No gain or loss will be recognized by Acquiring  Fund upon the receipt
          of substantially all of the assets of Acquired Fund in exchange solely
          for voting shares of Acquiring Fund pursuant to Section 1032(a) of the
          Code.

     4.   Provided  that  the  shareholders  of  Acquired  Fund  receive  solely
          Acquiring Fund shares in exchange for Acquired Fund shares, no gain or
          loss will be recognized by  shareholders  of Acquired Fund pursuant to
          Section 354(a) of the Code.

     5.   The basis of the assets of Acquired  Fund  received by Acquiring  Fund
          will be the  same  as the  basis  of  such  assets  to  Acquired  Fund
          immediately  prior to the exchange  pursuant to Section  362(b) of the
          Code.

     6.   The basis of the shares of Acquiring Fund received by  shareholders of
          Acquired  Fund will be the same as the basis of the shares of Acquired
          Fund surrendered in exchange therefor pursuant to Section 358(a)(1) of
          the Code.
                                       6
<PAGE>
     7.   The  holding  period  of the  assets  of  Acquired  Fund  received  by
          Acquiring  Fund will include the period  during which such assets were
          held by Acquired Fund pursuant to Section 1223(2) of the Code.

     8.   The holding  period of the shares of  Acquiring  Fund  received by the
          shareholders  of Acquired Fund will include the holding  period of the
          shares of Acquired Fund  surrendered  in exchange  therefor,  provided
          that the shares of Acquired  Fund were held as a capital  asset on the
          date of the exchange, pursuant to Section 1223(1) of the Code.

The opinions set forth above  represent our conclusions as to the application of
Federal  income  tax  law  existing  as of  the  date  of  this  letter  to  the
transactions described in the Proxy Statement, and we can give no assurance that
legislative  enactments,  administrative  changes or court  decisions may not be
forthcoming  which would require  modifications  or  revocations of our opinions
expressed herein. Moreover, there can be no assurance that positions contrary to
our opinions will not be taken by the Service,  or that a court  considering the
issues would not hold contrary to such opinions.  Further,  all the opinions set
forth  above  represent  our  conclusions  based  upon the  documents  and facts
referred to above.  Any material  amendments to such documents or changes in any
significant facts would affect the opinions referred to herein. Although we have
made such inquiries and performed such investigation as we have deemed necessary
to  fulfill  our  professional  responsibilities,  we  have  not  undertaken  an
independent investigation of the facts referred to in this letter.

We express no opinion as to any Federal  income tax issue or other matter except
those set forth above.

                                        Sincerely yours,
 





                                      7

                                  Exhibit 14(a)

                        Consent of Price Waterhouse, LLP,
                            Independent Accountants.
<PAGE>



Consent Of Independent Auditors

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 17, 1997 relating to the
financial  statements  and  selected  per share  data and  ratios for a share of
beneficial interest outstanding  appearing int eh October 31, 1997 Annual Report
to Shareholders of Vista American Value Fund (one of the portfolios constituting
Mutual Fund Group) (the "Report"), which is also incorporated by references into
the  Registration  Statement.  We also consent to the  reference to us under the
heading  "Experts" in the  Combined  Proxy  Statmenet  and  Prospectus.  We also
consent to the  incorporation  by refernece of the Report in the  Prospectus and
the Statement of Additional  Information  constituting  parts of Post  Effective
Amendment  No. 50 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
March 26, 1998

                                  Exhibit 14(b)

                       Consent of McGladrey & Pullen, LLP
                            Independent Accountants.
<PAGE>




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

McGLADREY & PULLEN, LLP

New York, New York
March 25, 1998


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