EXHIBIT 12 
    
                        [Simpson Thacher & Bartlett] 

                                                              February 6, 1996 
    

   
Re:Agreement and Plan of Reorganization and Liquidation dated as of December 
   15, 1995 between The Hanover Investment Funds, Inc. and Mutual Fund Group 
    

The Hanover Investment Funds, Inc. 
237 Park Avenue 
New York, New York 10017 

Mutual Fund Group 
125 West 55th Street 
New York, New York 10019 

Ladies and Gentlemen: 

   
   You have requested our opinion with respect to the federal income tax 
consequences of certain aspects of the proposed transfer by each Hanover 
Portfolio(1) of all of its assets to its Corresponding MFG Portfolio solely 
in exchange for MFG Portfolio Shares of the Corresponding MFG Portfolio and 
the assumption of all its obligations and liabilities by the Corresponding 
MFG Portfolio (as described in Section 2(a)(1) of the Reorganization 
Agreement) followed by the liquidation of the Hanover Portfolio and the 
distribution pro rata of such MFG Portfolio Shares to the shareholders of the 
Corresponding Hanover Portfolio. The series of steps that will occur to 
effect such transaction are hereinafter referred to as the "Reorganization." 
This opinion is being delivered pursuant to Sections 7(d) and 8(e) of the 
Reorganization Agreement. 
    

   Hanover is a Maryland corporation registered under the Investment Company 
Act of 1940, as amended (the "Act"), as an open-end investment company of the 
management type and is comprised of separate investment portfolios which 
include The Hanover Short Term U.S. Government Fund, The Hanover U.S. 
Government Securities Fund, The Hanover Blue Chip Growth Fund, The Hanover 
Small Capitalization Growth Fund and The Hanover American Value Fund (each, a 
"Hanover Portfolio"). Hanover's investment portfolios other than the Hanover 
Portfolios (consisting of The Tax Free Income Fund, The New York Tax Free 
Income Fund, The New Jersey Tax Free Income Fund, The International Equity 
Fund and The International Bond Fund, each of which has not to date commenced 
investment operations) are not parties to the Reorganization. 

   
   The authorized capital stock of Hanover consists of 200,000,000 shares of 
Common Stock, each having a par value $.001 per share. As of December 15, 
1995, there were outstanding 1,032,104 shares of The Hanover Short Term U.S. 
Government Fund (consisting of 1,032,099 "Investor Shares" and 5 "Advisor 
Shares"), 8,327,159 shares of The Hanover U.S. Government Securities Fund 
(consisting of 8,324,278 "Investor Shares" and 2,881 "Advisor Shares"), 
4,657,613 shares of The Hanover Blue Chip Growth Fund (consisting of 
4,652,389 "Investor Shares" and 5,224 "Advisor Shares"), 3,475,729 shares of 
The Hanover Small Capitalization Growth Fund (consisting of 883,003 "Investor 
Shares," 1,002 "Advisor Shares" and 2,591,724 "CBC Benefit" Shares) and 
698,326 shares of The Hanover American Value Fund (consisting of 698,117 
"Investor Shares" and 209 "Advisor Shares"), and no shares were held in the 
treasury of Hanover. 
    

   MFG is registered under the Act as an open-end diversified investment 
company of the management type and is organized as a Massachusetts business 
trust comprised of separate investment portfolios, which include Vista Short 
Term Bond Fund, Vista Equity Fund and Vista Small Cap Equity Fund, and which 
is expected to include, at the Effective Time of the Reorganization, Vista 
U.S. Government Securities Fund and Vista American Value Fund (each, an "MFG 
Portfolio"). MFG's investment portfolios other than the MFG Portfolios 
(consisting of Vista U.S. Government Income Fund, Vista Balanced Fund, Vista 
Bond Fund, Vista Equity Income Fund, Vista IEEE Balanced Fund, Vista Growth 
and Income Fund, Vista Capital Growth Fund, Vista International Equity Fund, 
Vista Global Fixed Income Fund, Vista Southeast Asian Fund, Vista European 
Fund and Vista Japan Fund) are not parties to the Reorganization. 

   
(1) Where relevant, capitalized terms not otherwise defined herein have the 
    meanings they have for the purposes of the Agreement and Plan of 
    Reorganization and Liquidation, dated as of December 29, 1995, between 
    Hanover and MFG (the "Reorganization Agreement"). 
    



   
   MFG has an unlimited number of authorized shares of beneficial interest, 
currently without par value, of which as of December 15, 1995 there were 
outstanding the following numbers of shares of the MFG Portfolios: 3,650,761 
shares of Vista Short Term Bond Fund (consisting of a single class of 
shares), 4,401,525 shares of Vista Equity Fund (consisting of a single class 
of shares) and 5,006,123 shares of Vista Small Cap Equity Fund (consisting of 
3,293,243 "Class A" shares, 1,712,880 "Class B" Shares and zero 
"Institutional" Shares) and no shares were held in the treasury of MFG. There 
are no outstanding shares of Vista U.S. Government Securities Fund and Vista 
American Value Fund. 
    

   
   The Reorganization Agreement was approved by the Board of Trustees of MFG 
on December 14, 1995 and by the Board of Directors of Hanover on December 13, 
1995. 
    

   
   Upon satisfaction of all conditions precedent set forth in the 
Reorganization Agreement, the Reorganization will be effected as set forth in 
the following summary: 
    

   
      1. Pursuant to the Reorganization Agreement, Hanover will cause each 
   Hanover Portfolio to convey, transfer and deliver at the Closing to the 
   MFG Portfolio set forth opposite its name in the table attached to the 
   Reorganization Agreement as Schedule I (each such MFG Portfolio being the 
   "Corresponding MFG Portfolio" of the Hanover Portfolio set forth opposite 
   its name, and each such Hanover Portfolio being the "Corresponding Hanover 
   Portfolio" of the MFG Portfolio set forth opposite its name) all of the 
   then existing assets of such Hanover Portfolio. In consideration thereof, 
   MFG agrees at the Closing to cause each MFG Portfolio (i) to assume and 
   pay, to the extent that they exist on or after the Effective Time of the 
   Reorganization, all of the obligations and liabilities of its 
   Corresponding Hanover Portfolio and (ii) to issue and deliver to the 
   Corresponding Hanover Portfolio full and fractional shares of beneficial 
   interest of the Corresponding MFG Portfolio as follows: (1) to The Hanover 
   Short Term U.S. Government Fund, Class A shares of Vista Short Term Bond 
   Fund; (2) to The Hanover U.S. Government Fund, Institutional Class shares 
   of Vista U.S. Government Fund; (3) to The Hanover Blue Chip Growth Fund, 
   Institutional Class shares of Vista Equity Fund (to be renamed Vista Large 
   Cap Equity Fund in connection with the Reorganization); (4) to The Hanover 
   Small Capitalization Growth Fund, Class A Shares and Institutional Class 
   shares, as described in paragraph (2) below, of Vista Small Cap Equity 
   Fund; and (5) to The Hanover American Value Fund, shares of Vista American 
   Value Fund (the shares of the MFG Portfolios to be received by the Hanover 
   Portfolios in connection with the Reorganization are referred to 
   collectively as the "MFG Portfolio Shares"), with respect to each class of 
   each MFG Portfolio equal to that number of full and fractional MFG 
   Portfolio Shares as determined in Section 2(c) of the Reorganization 
   Agreement. Any shares of capital stock, par value $.001 per share, of the 
   Hanover Portfolios ("Hanover Portfolio Shares") held in the treasury of 
   Hanover on the Effective Time of the Reorganization shall thereupon be 
   retired. 
    

   
      2. At the Effective Time of the Reorganization, each Hanover Portfolio 
   will liquidate and distribute pro rata to its holders of Hanover Portfolio 
   Shares as of the Effective Time of the Reorganization the MFG Portfolio 
   Shares of the Corresponding MFG Portfolio received by such Hanover 
   Portfolio pursuant to Section 2(a) of the Reorganization Agreement. In the 
   case of each Hanover Portfolio other than The Hanover Small Capitalization 
   Growth Fund, all shareholders of such Hanover Portfolios will receive the 
   MFG Portfolio Shares of the Corresponding MFG Portfolio identified in 
   Section 2(a)(1) above. In the case of the Hanover Small Capitalization 
   Growth Fund, shareholders of both the "Investor Shares" and the "Advisor 
   Shares" thereof will receive Class A shares of the Vista Small Cap Equity 
   Fund and shareholders of "CBC Benefit Shares" thereof will receive 
   Institutional Class shares of the Vista Small Cap Equity Fund. Such 
   liquidation and distribution will be accompanied by the establishment of 
   an account on the respective share records of each MFG Portfolio in the 
   name of each record holder of Hanover Portfolio Shares of the 
   Corresponding Hanover Portfolio and representing the respective pro rata 
   number of MFG Portfolio Shares of the Corresponding MFG Portfolio due such 
   shareholder. Fractional Corresponding MFG Portfolio Shares will be carried 
   to the third decimal place. Simultaneously with such crediting of MFG 
   Portfolio Shares to the shareholders, the Hanover Portfolio Shares held by 
   such shareholders shall be cancelled. 
    

      3. As soon as practicable after the Effective Time of the 
   Reorganization, Hanover shall take all the necessary steps under Maryland 
   law and Hanover's Articles of Incorporation, as amended and supplemented, 
   to effect a complete dissolution of Hanover and to deregister Hanover 
   under the Act. 

   In acting as special counsel to MFG and Hanover with respect to the 
Reorganization, we have, among other things, reviewed the following 
documents: 


 
   
      1. The Reorganization Agreement; 
    

   
      2. The proxy statement of MFG as filed with the Securities and Exchange 
Commission; and 
    

   
      3. MFG's Registration Statement on Form N-14 under the Securities Act 
of 1933, as filed with the Securities and Exchange Commission (the 
"Registration Statement on Form N-14"). 
    

   
   For purposes of this opinion, as hereinafter set forth, we have reviewed 
such other documents relating to the Reorganization as we have deemed 
relevant under the circumstances and have relied upon representations 
contained in certain certificates (the "Certificates") provided to us by 
Hanover, MFG, Chemical Banking Corporation and The Chase Manhattan 
Corporation. 
    

   
      If the merger is effected on a factual basis different from that 
contemplated above, any or all of the opinions expressed herein may be 
inapplicable. Further, our opinion is based on (i) the Internal Revenue Code 
of 1986, as amended (the "Code"), (ii) Treasury Regulations, (iii) judicial 
precedents and (iv) administrative interpretations (including the current 
ruling practice of the Internal Revenue Service) as of the date hereof. If 
there is any subsequent change in the applicable law or regulations, or if 
there are subsequently any new administrative or judicial interpretations of 
the law or regulations, any or all of the individual opinions expressed 
herein may become inapplicable 
    

   
   Based on the foregoing, and assuming that the Reorganization is effected 
in accordance with the terms of the Reorganization Agreement (and exhibits 
thereto) and that the statements set forth in the Certificates are true as of 
the Effective Time, it is our opinion that for federal income tax purposes: 
    

     (i) the Reorganization will constitute a reorganization within the 
meaning of section 368(a)(1) of the Code with respect to each Hanover 
Portfolio and its Corresponding MFG Portfolio; 

     (ii) no gain or loss will be recognized by any of the Hanover Portfolios 
or the Corresponding MFG Portfolios upon the transfer of all the assets and 
liabilities, if any, of each Hanover Portfolio to its Corresponding MFG 
Portfolio solely in exchange for MFG Portfolio Shares or upon the 
distribution of the MFG Portfolio Shares to the holders of Hanover Portfolio 
Shares solely in exchange for all of their Hanover Portfolio Shares; 

     (iii) no gain or loss will be recognized by shareholders of any of the 
Hanover Portfolios upon the exchange of such Hanover Portfolio Shares solely 
for MFG Portfolio Shares; 

     (iv) the holding period and tax basis of the MFG Portfolio Shares 
received by each holder of Hanover Portfolio Shares pursuant to the 
Reorganization will be the same as the holding period (provided the Hanover 
Portfolio Shares were held as a capital asset on the date of the 
Reorganization) and tax basis of the Hanover Portfolio Shares held by the 
shareholder immediately prior to the Reorganization; and 

     (v) the holding period and tax basis of the assets of each of the 
Hanover Portfolios acquired by its Corresponding MFG Portfolio will be the 
same as the holding period and tax basis of those assets to each of the 
Hanover Portfolios immediately prior to the Reorganization. 

   
   The payment by Chemical Banking Corporation and/or The Chase Manhattan 
Corporation of certain expenses of Hanover and MFG which are directly related 
to the Reorganization (referred to in section 10 of the Reorganization 
Agreement) will not affect the opinions set forth above regarding the federal 
income tax consequences of the exchanges by Hanover and the shareholders of 
Hanover. However, no opinion is expressed as to any other federal income tax 
consequences to any of the parties of the payment of such expenses by 
Chemical Banking Corporation and/or The Chase Manhattan Corporation. 
    



 
   
   We express our opinion herein only as to those matters specifically set 
forth above and such opinion may be relied upon solely by you for the 
exclusive purpose of ascertaining the federal income tax consequences of the 
Reorganization contemplated in the Reorganization Agreement to the Hanover 
Portfolios, the MFG Portfolios and the shareholders of the Corresponding 
Hanover Portfolios on their receipt of the MFG Portfolio Shares pursuant to 
the Reorganization Agreement. We hereby consent to the filing of this opinion 
as an exhibit to the Registration Statement on Form N-14 and to the use of 
our name therein. 
    

   
Very truly yours, 
/s/ Simpson Thacher & Bartlett 
SIMPSON THACHER & BARTLETT