NATIONWIDE INVESTING FOUNDATION III
485BPOS, 1998-05-28
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<PAGE>   1
   
             As filed with the Securities and Exchange Commission on
                                  May 28, 1998

                           Registration No. 333-41175

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                              --------------------

                                    FORM N-14

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                       [ ]  PRE-EFFECTIVE AMENDMENT NO. 

                       [X]  POST-EFFECTIVE AMENDMENT NO. 1
    

                        (Check appropriate box or boxes)

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

                       Nationwide Investing Foundation III
               (Exact Name of Registrant as Specified in Charter)

                  Three Nationwide Plaza, Columbus, Ohio 43215
                    (Address of Principal Executive Offices)

                                 (800) 848-0920
                        (Area Code and Telephone Number)

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

                             David E. Simaitis, Esq.
                   One Nationwide Plaza, Columbus, Ohio 43215
                     (Name and address of Agent for Service)

                                    Copy to:
                  Charles H. Hire, Esq., Baker & Hostetler LLP
                   65 East State Street, Columbus, Ohio 43215
   

                 Approximate Date of Proposed Public Offering:
                         Immediately upon effectiveness

It is proposed that this filing will become effective:

[X]       immediately upon filing pursuant to paragraph (b)
[ ]       on (date) pursuant to paragraph (b)
[ ]       60 days after filing pursuant to paragraph (a)(1)
[ ]       on (date) pursuant to paragraph (a)(1)
[ ]       75 days after filing pursuant to paragraph (a)(2)
[ ]       on (date) pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

[ ]       this post effective amendment designates a new effective date for a 
          previously filed post-effective amendment.
    

                      Title of Securities Being Registered:
                Shares of beneficial interest, without par value.

         An indefinite amount of the Registrant's securities has been registered
under the Securities Act of 1933 pursuant to Rule 24f-2 under the Investment
Company Act of 1940. In reliance upon such Rule, no filing fee is being paid at
this time.


<PAGE>   2
   
     The Cross Reference Sheets included as part of Pre-Effective Amendment No.
1 to Nationwide Investing Foundation III's Registration Statement on Form
N-14(No. 333-41175) filed on January 7, 1998 are hereby incorporated herein by
reference.

     The combined Prospectus/Proxy Statements, related proxy cards and Statement
of Additional Information, each dated as of January 8, 1998, relating to
Nationwide Investing Foundation III's Registration Statement on Form N-14 (No.
333-41175), as filed with the Securities and Exchange Commission on January 20,
1998 pursuant to Rule 497(c) of the Securities Act of 1933, are hereby
incorporated herein by reference.
    
<PAGE>   3
                             Registration Statement
                                       of
                       NATIONWIDE INVESTING FOUNDATION III
                                       on
                                    Form N-14


PART C.           OTHER INFORMATION

Item 15.          INDEMNIFICATION
                  The information required by this item is incorporated by
                  reference to the Item 27 of Registrant's Registration
                  Statement on Form N-1A (File No. 333-40455) filed on November
                  18, 1997, under the Securities Act of 1933 and the Investment
                  Company Act of 1940 (File No. 811-08495).

Item 16.          Exhibits
<TABLE>
<CAPTION>

<S>               <C>      <C>                                              
                  (1)      Declaration of Trust is incorporated by reference
                           to Exhibit (1) to Registrant's Registration
                           Statement on Form N-1A (File No. 333-40455) filed
                           on November 18, 1997.

                  (2)      By-Laws are incorporated by reference to Exhibit (2)
                           to Registrant's Registration Statement on Form N-1A
                           (File No. 333-40455) filed on November 18,
                           1997.

                  (3)      Not Applicable.

                  (4)      (a)      Agreement and Plan of Reorganization dated as
                                    of November 24, 1997, between Registrant and
                                    Nationwide Investing Foundation is
                                    incorporated by reference to Exhibit (4)(a) to
                                    Registrant's Registration Statement on Form N-
                                    14 (File No. 333-41175) filed on November 26,
                                    1997.

                           (b)      Agreement and Plan of Reorganization dated
                                    as of November 24, 1997, between Registrant
                                    and Nationwide Investing Foundation II is
                                    incorporated by reference to Exhibit (4)(b)
                                    to Registrant's Registration Statement on
                                    Form N-14 (File No. 333-41175) filed on
                                    November 26, 1997.

   
                           (c)      Agreement and Plan of Reorganization dated
                                    as of November 24, 1997, as amended as of
                                    December 30, 1997, between Registrant and
                                    Financial Horizons Investment Trust is
                                    incorporated by reference to Exhibit(4)(c)
                                    to Pre-Effective Amendment No. 1 to
                                    Registrant's Registration Statement on Form
                                    N-14 (File No. 333-41175) filed on January
                                    7, 1998.
    

                  (5)      Certificates for shares are not issued. Articles V,
                           VI, VII and VIII of the Declaration of Trust,
                           incorporated by reference to Exhibit (1) hereto,
                           define rights of holders of shares.
</TABLE>



<PAGE>   4



<TABLE>
<CAPTION>

<S>               <C>      <C>                                              
                  (6)      Proposed Investment Advisory Agreement between
                           Registrant and Nationwide Advisory Services, Inc. is
                           incorporated by reference to Exhibit (5) to
                           Registrant's Registration Statement on Form N-1A
                           (File No. 333-40455) filed on November 18, 1997.

                  (7)      Proposed Underwriting Agreement between Registrant
                           and Nationwide Advisory Services, Inc. is
                           incorporated by reference to Exhibit (6) to
                           Registrant's Registration Statement on Form N-1A
                           (File No. 333-40455) filed on November 18, 1997.

                  (8)      Not Applicable.

                  (9)      Proposed Custody Agreement between Registrant and The
                           Fifth Third Bank is incorporated by reference to
                           Exhibit (8) to Registrant's Registration Statement on
                           Form N-1A (File No. 333-40455) filed on November 18,
                           1997.

                  (10)     Proposed Distribution Plan is incorporated by
                           reference to Exhibit (15) to Registrant's
                           Registration Statement on Form N-1A (File No. 333-
                           44505) filed on November 18, 1997.

                  (11)     Opinion and Consent of Druen, Dietrich, Reynolds &
                           Koogler as to the shares offered hereby is
                           incorporated by reference to Exhibit (11) to
                           Registrant's Registration Statement on Form N-14
                           (File No. 333-41175) filed on November 26, 1997.

   
                  (12)     Opinions and Consents of Baker & Hostetler LLP as to
                           Tax Matters.

                  (13)     (a)      Proposed Fund Administration Agreement
                                    between Registrant and Nationwide Advisory
                                    Services, Inc. is incorporated by reference
                                    to Exhibit (9)(b) to Registrant's
                                    Registration Statement on Form N-1A (File
                                    No. 333-40455) filed on November 18, 1997.

                           (b)      Proposed Transfer and Dividend Disbursing
                                    Agent Agreement between Registrant and
                                    Nationwide Investors Services, Inc. is
                                    incorporated by reference to Exhibit (9)(b)
                                    to Registrant's Registration Statement on
                                    Form N- 1A (File No. 333-44505) filed on
                                    November 18, 1997.

                  (14)     (a)      Consent of KPMG Peat Marwick LLP is
                                    incorporated by reference to Exhibit (14)(a)
                                    of Pre-Effective Amendment No. 1 to
                                    Registrant's Registration Statement on Form
                                    N-14 (File No. 333-41175) filed on January
                                    7, 1998.

                           (b)      Consent of Druen, Dietrich, Reynolds &
                                    Koogler is incorporated by reference to
                                    Exhibit (14)(b) of Pre-Effective Amendment
                                    No. 1 to Registrant's Registration Statement
                                    on Form N-14 (File No. 333-41175) filed on
                                    January 7, 1998.

                           (c)      Consent of Baker & Hostetler LLP is
                                    incorporated by reference to Exhibit (14)(c)
                                    of Pre-Effective Amendment No. 1 to
                                    Registrant's Registration Statement on Form
                                    N-14 (File No. 333-41175) filed on January
                                    7, 1998. 
</TABLE>
    

                                       C-2

<PAGE>   5



   
<TABLE>
<CAPTION>

<S>               <C>      <C>                                              

                  (15)     Not Applicable.

                  (16)     Power of Attorney of Robert M. Duncan is incorporated
                           by reference to Exhibit (16) of Pre-Effective
                           Amendment No. 1 to Registrant's Registration
                           Statement on Form N-14 (File No. 333-41175) filed on
                           January 7, 1998.  Powers of Attorney of Sue A.
                           Doody, Dimon R. McFerson, Nancy C. Thomas, Harold W.
                           Weihl, Douglas F. Kridler, John C. Bryant, C. Brent
                           DeVore, Charles L. Fuellgraf, Jr., David C. Wetmore
                           and Thomas J. Kerr, IV are incorporated by reference
                           to Exhibit (16) to Registrant's Registration
                           Statement on Form N-14 (File No. 333-41175) filed on
                           November 26, 1997.

                  (17)     (a)      Declaration pursuant to Rule 24f-2 under the
                                    Investment Company Act of 1940 for the
                                    Registrant dated November 18, 1997 is
                                    incorporated by reference to Exhibit (17)(a)
                                    to Registrant's Registration Statement on Form
                                    N-14 (File No. 333-41175) filed on November
                                    26, 1997.

                           (b)      Current form of Prospectus dated December __,
                                    1997, and Statement of Additional Information
                                    dated December __, 1997, for Nationwide
                                    Investing Foundation III, with respect to
                                    Nationwide Mid-Cap Growth Fund, Nationwide
                                    Growth Fund, Nationwide Fund, Nationwide Bond
                                    Fund, Nationwide Tax-Free Income Fund,
                                    Nationwide Long-Term U.S. Government Bond
                                    Fund, Nationwide Intermediate U.S. Government
                                    Bond Fund and Nationwide Money Market Fund in
                                    the form filed with the Securities and
                                    Exchange Commission on November 18, 1997, as
                                    part of Registrant's Registration Statement on
                                    Form N-1A are incorporated by reference to
                                    Exhibit (17)(b) to Registrant's Registration
                                    Statement on Form N-14 (File No. 333-41175)
                                    filed on November 26, 1997.

                           (c)      Prospectus dated February 28, 1997 and
                                    Statement of Additional Information dated
                                    February 28, 1997, for each of Nationwide
                                    Investing Foundation and Nationwide Investing
                                    Foundation II with respect to Nationwide
                                    Growth Fund, Nationwide Fund, Nationwide Bond
                                    Fund, Nationwide Tax-Free Income Fund,
                                    Nationwide U.S. Government Income Fund and
                                    Nationwide Money Market Fund are incorporated
                                    by reference to Exhibit (17)(c) to
                                    Registrant's Registration Statement on Form N-
                                    14 (File No. 333-41175) filed on November 26,
                                    1997.

                           (d)      Prospectus dated February 28, 1997, as
                                    supplemented March 17, 1997 and September 5,
                                    1997, and Statement of Additional
                                    Information
</TABLE>
    

                                       C-3

<PAGE>   6



   
<TABLE>
<CAPTION>

<S>               <C>      <C>                                              
                                    dated February 28, 1997, for Financial
                                    Horizons Investment Trust with respect to
                                    Growth Fund, Cash Reserve Fund, Government
                                    Bond Fund and Municipal Bond Fund are
                                    incorporated by reference to Exhibit (17)(c)
                                    to Registrant's Registration Statement on
                                    Form N-14 (File No. 333-41175) filed on
                                    November 26, 1997.

                           (e)      Financial Data Schedules for each of
                                    Nationwide Investing Foundation with respect
                                    to Nationwide Growth Fund, Nationwide Fund,
                                    Nationwide Bond Fund and Nationwide Money
                                    Market Fund, Nationwide Investing Foundation
                                    II with respect to Nationwide Tax-Free Income
                                    Fund and Nationwide U.S. Government Income
                                    Fund and Financial Horizons Investment Trust
                                    with respect to Growth Fund, Cash Reserve
                                    Fund, Government Bond Fund and Municipal Bond
                                    Fund.

                           (f)      Supplements dated December 8, 1997, to the
                                    Prospectuses of each of Nationwide Investing
                                    Foundation, Nationwide Investing Foundation
                                    II and Financial Horizons Investment Trust,
                                    each dated as of February 28, 1997, are
                                    incorporated by reference to Exhibit
                                    (17)(f) of Pre-Effective Amendment
                                    No. 1 to Registrant's Registration Statement
                                    on Form N-14 (File No. 333-41175) filed on
                                    January 7, 1998.

                           (g)      Annual Reports to Shareholders as of October
                                    31, 1997 of each of Nationwide Investing
                                    Foundation, Nationwide Investing Foundation
                                    II and Financial Horizons Investment Trust
                                    are incorporated by reference to Exhibit
                                    (17)(g) of Pre-Effective Amendment
                                    No. 1 to Registrant's Registration Statement
                                    on Form N-14 (File No. 333-41175) filed on
                                    January 7, 1998.

                           (h)      Supplements dated December 23, 1997, to be
                                    Prospectuses of Nationwide Investing
                                    Foundation and Nationwide Investing
                                    Foundation II, each dated as of February 28,
                                    1997 are incorporated by reference to Exhibit
                                    (17)(h) of Pre-Effective Amendment
                                    No. 1 to Registrant's Registration Statement
                                    on Form N-14 (File No. 333-41175) filed on
                                    January 7, 1998.
</TABLE>
    

Item 17.          UNDERTAKINGS

                  (1)      Registrant agrees that prior to any public
                           reoffering of the securities registered through the
                           use of 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 of 1933, 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.

                  (2)      Registrant agrees that every prospectus that is
                           filed under paragraph (1) above will be filed as a
                           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

                                       C-4

<PAGE>   7
 


                           deemed to be the initial bona fide offering of
                           them.

                  (3)      Registrant hereby undertakes to file by
                           post-effective amendment the opinions of Baker &
                           Hostetler LLP supporting the tax consequences of the
                           proposed reorganization described herein within a
                           reasonable time after receipt of such opinions.

                                       C-5

<PAGE>   8



                                   SIGNATURES
                                   ----------


   
         As required by the Securities Act of 1933, the Registrant has duly
caused this Registration Statement to be signed on its behalf by the undersigned
thereunto duly authorized, in the City of Columbus and State of Ohio on the 26th
day of May, 1998. Registrant hereby certifies that this Post-Effective Amendment
Registration Statement meets all of the requirements for effectiveness pursuant
to paragraph (b) of Rule 485 under the Securities Act of 1933.
    


                                         NATIONWIDE INVESTING FOUNDATION III


                                         By /s/ James F. Laird, Jr.
                                           -------------------------------------
                                               James F. Laird, Jr.

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

   
<TABLE>
<CAPTION>
        Signature                                          Title                                \Date
        ---------                                          -----                                 ----

<S>                                         <C>                                            <C>
/s/*Dimon R. McFerson                       Chairman (Principal                            May 26, 1998
- ----------------------------
    Dimon R. McFerson                       Executive Officer)
                                            and Trustee

/s/*John C. Bryant                          Trustee                                        May 26, 1998
- ----------------------------
    John C. Bryant

/s/*C. Brent Devore                         Trustee                                        May 26, 1998
- ----------------------------
    C. Brent Devore

/s/*Sue A. Doody                            Trustee                                        May 26, 1998
- ----------------------------
    Sue A. Doody

/s/*Robert M. Duncan                        Trustee                                        May 26, 1998
- ----------------------------
  Robert M. Duncan

/s/*Charles L. Fuellgraf, Jr.               Trustee                                        May 26, 1998
- ----------------------------
  Charles L. Fuellgraf, Jr.

/s/*Thomas J. Kerr, IV                      Trustee                                        May 26, 1998
- ----------------------------
  Thomas J. Kerr, IV

/s/*Douglas F. Kridler                      Trustee                                        May 26, 1998
- ----------------------------
    Douglas F. Kridler

/s/*Nancy C. Thomas                         Trustee                                        May 26, 1998
- ----------------------------
    Nancy C. Thomas

/s/*Harold W. Weihl                         Trustee                                        May 26, 1998
- ----------------------------
    Harold W. Weihl

/s/*David C. Wetmore                        Trustee                                        May 26, 1998
- ----------------------------
    David C. Wetmore

/s/ James F. Laird, Jr.                     Treasurer (Principal                           May 26, 1998
- ---------------------------
    James F. Laird, Jr.                     Financial and Accounting
                                            Officer)

*By/s/James F. Laird, Jr.                                                                  May 26, 1998
   ------------------------
      James F. Laird, Jr.
         Attorney-In-Fact
</TABLE>
    

                                       C-6

<PAGE>   9



                                  EXHIBIT INDEX


<TABLE>
<CAPTION>
Exhibit No.                                  Description                                  Page
- -----------                   --------------------------------------------------          -----

<S>       <C>                 <C>                                                         <C>
          (1)                 Declaration of Trust was filed as Exhibit (1)
                              to Registrant's Registration Statement on Form
                              N-1A (File No. 333-40455) on November 18,
                              1997.

          (2)                 By-Laws were filed as Exhibit (2) to
                              Registrant's Registration Statement on Form N-
                              1A (File No. 333-40455) on November 18, 1997.

          (4)(a)              Agreement and Plan of Reorganization dated as
                              of November 24, 1997, between Registrant and
                              Nationwide Investing Foundation was filed as
                              Exhibit (4)(a) to Registrant's Registration
                              Statement on Form N-14 (File No. 333-41175).

               (b)            Agreement and Plan of Reorganization dated as of
                              November 24, 1997, between Registrant and
                              Nationwide Investing Foundation II was filed as
                              Exhibit (4)(a) to Registrant's Registration
                              Statement on Form N-14 (File No. 333-41175).

   
               (c)            Agreement and Plan of Reorganization dated as of
                              November 24, 1997, as amended as of December 30,
                              1997, between Registrant and Financial Horizons
                              Investment Trust was filed as Exhibit (4)(c) to
                              Pre-Effective Amendment No. 1 to Registrant's
                              Registration Statement on Form N-14 (File No.
                              333-41175) filed on January 7, 1998.
    

          (6)                 Proposed Investment Advisory Agreement between
                              Registrant and Nationwide Advisory Services,
                              Inc. was filed as Exhibit (5) to Registrant's
                              Registration Statement on Form N-1A (File No.
                              333-40455) filed on November 18, 1997.

          (7)                 Proposed Underwriting Agreement between
                              Registrant and Nationwide Advisory Services,
                              Inc. was filed as Exhibit (6) to Registrant's
                              Registration Statement on Form N-1A (File No.
                              333-40455) filed on November 18, 1997.

          (9)                 Proposed Custody Agreement between Registrant
                              and The Fifth Third Bank was filed as Exhibit
                              (8) to Registrant's Registration Statement on
                              Form N-1A (File No. 333-40455) filed on
                              November 18, 1997.

          (10)                Proposed Distribution Plan was filed as
                              Exhibit (15) to Registrant's Registration
                              Statement on Form N-1A (File No. 333-44505)
                              filed on November 18, 1997.
</TABLE>


                                       C-7

<PAGE>   10


<TABLE>
<CAPTION>
Exhibit No.                                  Description                                  Page
- -----------                   --------------------------------------------------          -----

<S>       <C>                 <C>                                                         <C>
          (11)                Opinion and Consent of Druen, Dietrich,
                              Reynolds & Koogler as to the shares offered
                              hereby was filed as Exhibit (11) to
                              Registrant's Registration Statement on Form N-
                              14 (File No. 333-41175).

   
          (12)                Opinions and Consents of Baker & Hostetler LLP as
                              to Tax Matters.

          (13)(a)             Proposed Fund Administration Agreement between
                              Registrant and Nationwide Advisory Services,
                              Inc. was filed as Exhibit (9)(b) to
                              Registrant's Registration Statement on Form N-
                              1A (File No. 333-40455) filed on November 18,
                              1997.

              (b)             Proposed Transfer and Dividend Disbursing Agent
                              Agreement between Registrant and Nationwide
                              Investors Services, Inc. was filed as Exhibit
                              (9)(b) to Registrant's Registration Statement
                              on Form N-1A (File No. 333-44505) filed on
                              November 18, 1997.

          (14)(a)             Consent of KPMG Peat Marwick LLP was filed as
                              Exhibit (14)(a) of Pre-Effective Amendment No. 1 to
                              Registrant's Registration Statement on Form N-14
                              (File No. 333-41175) filed on January 7, 1998.

              (b)             Consent of Druen, Dietrich, Reynolds & Koogler was
                              filed as Exhibit (14)(b) of Pre-Effective
                              Amendment No. 1 to Registrant's Registration
                              Statement on Form N-14 (File No. 333-41175) filed
                              on January 7, 1998.

              (c)             Consent of Baker & Hostetler LLP was filed as
                              Exhibit (14)(c) of Pre-Effective Amendment No. 1
                              to Registrant's Registration Statement on Form
                              N-14 (File No. 333-41175) filed on January 7,
                              1998.

          (16)                Power of Attorney of Robert M. Duncan was filed as
                              Exhibit (16) of Pre-Effective Amendment No. 1 to
                              Registrant's Registration Statement on Form N-14
                              (File No. 333-41175) filed on January 7, 1998.
                              Powers of Attorney of Sue A. Doody, Dimon R.
                              McFerson, Nancy C. Thomas, Harold W. Weihl,
                              Douglas F. Kridler, John C. Bryant, C. Brent
                              DeVore, Charles L. Fuellgraf, Jr., David C.
                              Wetmore and Thomas J. Kerr, IV were filed as
                              Exhibit (16) to Registrant's Registration
                              Statement on Form N-14 (File No. 333-41175).

    
          (17)(a)             Declaration pursuant to Rule 24f-2 under the
                              Investment Company Act of 1940 for the
                              Registrant dated November 18, 1997 was filed
                              as Exhibit (17)(a) to Registrant's
                              Registration Statement on Form N-14 (File No.
                              333-41175).

              (b)             Current form of Prospectus dated December __,
                              1997, and Statement of Additional Information
                              dated December __, 1997, for Nationwide
                              Investing Foundation III, with respect to
                              Nationwide Mid-Cap Growth Fund, Nationwide
                              Growth Fund, Nationwide Fund, Nationwide Bond
                              Fund, Nationwide Tax-Free Income Fund,
</TABLE>

                                       C-8

<PAGE>   11



<TABLE>
<CAPTION>
Exhibit No.                                  Description                                  Page
- -----------                   --------------------------------------------------          -----

<S>       <C>                 <C>                                                         <C>
                              Nationwide Long-Term U.S. Government Bond Fund,
                              Nationwide Intermediate U.S. Government Bond Fund
                              and Nationwide Money Market Fund in the form filed
                              with the Securities and Exchange Commission on
                              November 18, 1997, as part of Registrant's
                              Registration Statement on Form N-1A were filed as
                              Exhibit (17)(b) to Registrant's Registration
                              Statement on Form N-14 (File No. 333-41175).

               (c)            Prospectus dated February 28, 1997, and
                              Statement of Additional Information dated
                              February 28, 1997, for each of Nationwide
                              Investing Foundation and Nationwide Investing
                              Foundation II with respect to Nationwide Growth
                              Fund, Nationwide Fund, Nationwide Bond Fund,
                              Nationwide Tax-Free Income Fund, Nationwide
                              U.S. Government Income Fund and Nationwide
                              Money Market Fund were filed as Exhibit (17)(c)
                              to Registrant's Registration Statement on Form
                              N-14 (File No. 333-41175).

               (d)            Prospectus dated February 28, 1997, as
                              supplemented March 17, 1997 and September 5,
                              1997, and Statement of Additional Information
                              dated February 28, 1997, for Financial Horizons
                              Investment Trust with respect to Growth Fund,
                              Cash Reserve Fund, Government Bond Fund and
                              Municipal Bond Fund were filed as Exhibit
                              (17)(c) to Registrant's Registration Statement
                              on Form N-14 (File No. 333-41175).

               (e)            Financial Data Schedules for each of Nationwide
                              Investing Foundation with respect to Nationwide
                              Growth Fund, Nationwide Fund, Nationwide Bond
                              Fund and Nationwide Money Market Fund,
                              Nationwide Investing Foundation II with respect
                              to Nationwide Tax-Free Income Fund and
                              Nationwide U.S. Government Income Fund and
                              Financial Horizons Investment Trust with
                              respect to Growth Fund, Cash Reserve Fund,
                              Government Bond Fund and Municipal Bond Fund.

   
               (f)            Supplements dated December 8, 1997, to the
                              Prospectuses of each of Nationwide Investing
                              Foundation, Nationwide Investing Foundation II and
                              Financial Horizons Investment Trust, each dated as
                              of February 28, 1997 were filed as Exhibit (15)(f)
                              of Pre-Effective Amendment No. 1 to Registrant's
                              Registration Statement on Form N-14 (File No.
                              333-41175) filed on January 7, 1998.

               (g)            Annual Reports to Shareholders as of October 31,
                              1997 of each of Nationwide Investing Foundation,
                              Nationwide Investing Foundation II and Financial
                              Horizons Investment Trust were filed as Exhibit
                              (15)(g) of Pre-Effective Amendment No. 1 to
                              Registrant's Registration Statement on Form N-14
                              (File No. 333-41175) filed on January 7, 1998.

               (h)            Supplements dated December 23, 1997, to the
                              Prospectuses of Nationwide Investing Foundation
                              and Nationwide Investing Foundation II, each dated
                              as of February 28, 1997 were filed as Exhibit
                              (15)(h) of Pre-Effective Amendment No. 1 to
                              Registrant's Registration Statement on Form N-14
                              (File No. 333-41175) filed on January 7, 1998.
                              
</TABLE>
    

                                       C-9

<PAGE>   12





   
               As filed with the Securities and Exchange Commission May 28, 1998

                                             1933 Act Registration No. 333-41175
    






                                   EXHIBITS TO



                                    FORM N-14



            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933   [X]




   
                         Pre-Effective Amendment No.                  [ ]  




                          Post-Effective Amendment No. 1              [X]
    




                       Nationwide Investing Foundation III
               (Exact Name of Registrant as Specified in Charter)


                             Three Nationwide Plaza
                              Columbus, Ohio 43215
                    (Address of Principal Executive Offices)


                         Registrant's Telephone Number:
                                 (800) 848-0920



<PAGE>   1
                                                                      Exhibit 12

                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541

   
                                   May 9, 1998

    

Board of Trustees
Nationwide Investing Foundation III
One Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Nationwide Investing Foundation
One Nationwide Plaza
Columbus, OH 43215

                  RE:   Nationwide Investing Foundation--Nationwide Money Market
                        Fund/Nationwide Investing Foundation III--Nationwide 
                        Money Market Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization, dated as of November
24, 1997 (the "Agreement"), by and between Nationwide Investing Foundation, a
Michigan business trust ("NIF"), on behalf of Nationwide Money Market Fund
("Target"), a series of NIF, and Nationwide Investing Foundation III, an Ohio
business trust ("NIF III"), on behalf of the Nationwide Money Market Fund
("Acquiring"), a series of NIF III. Each of Target and Acquiring is a "series"
of a "series company" as described in Rule 18f-2 of the Investment Company Act
of 1940, as amended (the "1940 Act"). The conclusions presented herein are based
on the facts and representations in the Agreement and the Combined
Prospectus/Proxy Statement contained in the Registration Statement No. 333-41175
on Form N-14 (the "Registration Statement") as filed with the Securities and
Exchange Commission ("SEC") (collectively, the "Documents") and the
representations set forth in letters dated May 9, 1998, from Target and
Acquiring (the "Representation Letters") and the applicable tax law as it exists
today. We have assumed with your consent that the facts and representations set
forth in the Documents and the Representation Letters are true and correct.

FACTS
- -----

                  NIF III is a an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"),
and to be treated as a separate corporation under Section 851(h) of the Code.

                  NIF is a Michigan business trust registered under the 1940 Act
as an open-end investment company of the management type and currently has
issued and outstanding shares of beneficial interest, par value $1.00 per share,
of four (4) series, one of which is Target. The shares of Target are redeemable
at net asset value at the option of the shareholders of Target. Target has
elected to qualify as a regulated 



<PAGE>   2


investment company under Part I of Subchapter M of the Code and is treated as a
separate corporation under Section 851(h) of the Code.

                  Acquiring seeks to achieve a high level of current income
consistent with the preservation of capital. Target seeks to achieve a high
level of current income consistent with the preservation of capital. Each of
Acquiring and Target seeks to achieve its objective through investment in a
diversified portfolio of money market instruments with remaining maturities of
397 days or less and a dollar weighted average maturity of 90 days or less.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.

THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for voting
shares of beneficial interest, without any class designation, of Acquiring (the
"Acquiring Shares"). Target will immediately thereafter terminate its existence
and distribute the Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m. Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target. There are no dissenters or
appraisal rights.

REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce the ownership by the shareholders of
         Target of Acquiring Shares to a number of Acquiring Shares having a
         value, as of the Exchange Date, of less than 50 percent of the value of
         all of the formerly outstanding shares of Target as of the same date.
         For purposes of this representation, shares of 


<PAGE>   3


         Target and Acquiring held by shareholders of Target and sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends, including distributions of investment
         company taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction and after the
         transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction, other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (11) Acquiring will meet, and Target meets, the requirements of a
         "regulated investment company" as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

<PAGE>   4



         (13) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (14) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and after the exchange, Acquiring will elect to be taxed as a regulated
         investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides that the acquisition
by one corporation, in exchange solely for all or part of its voting stock, of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation immediately prior to the transfer. All payments to dissenters and
all redemptions and distributions (except for regular and normal distributions)
made by the corporation immediately preceding the transfer and which are part of
the plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

<PAGE>   5



                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.

                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Section 368(a)(1)(D) provides that a transfer by a corporation
of all or a part of its assets to another corporation constitutes a
"reorganization" if immediately after the transfer the transferor or one or more
of its shareholders (including persons who were shareholders immediately before
the transfer), or any combination thereof, is in control of the corporation to
which the assets are transferred, but only if, in pursuance of the plan, stock
or securities of the corporation to which the assets are transferred are
distributed in a transaction which qualifies under Sections 354, 355 or 356. For
this purpose, "control" is defined in Sections 368(a)(2)(H) and 304(c). It is
represented that Target will immediately after the Exchange Date terminate its
existence and will distribute in complete liquidation the Acquiring Shares it
receives in the exchange to the shareholders of Target and shareholders of
Target will be in control of Acquiring within the meaning of Sections
368(a)(2)(H) and 304(c) immediately after the transaction. Target will transfer
substantially all its assets to Acquiring and will in complete liquidation
transfer the Acquiring Shares to its shareholders; therefore, the Acquiring
Shares will be distributed in a transaction which qualifies under Section 354.
Therefore, the transaction will satisfy the definitional requirements of a "D"
reorganization as well as a "C" reorganization.

                  Section 368(a)(2)(A) provides that if a transaction is
described in both Sections 368(a)(1)(C) and 368(a)(1)(D), such transaction shall
be treated as described only in Section 368(a)(1)(D).

                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction in certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or (ii) use a significant
portion of the acquired corporation's historic business assets in a business. It
is represented that after the transaction Acquiring will continue the historic
business of Target or use a significant portion of such historic business assets
in its business. Accordingly, the transaction should meet the continuity of
business enterprise requirement.

<PAGE>   6



                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or
otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(D) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of the plan of
reorganization, solely for stock or securities in another corporation, which is
"a party to the reorganization." Section 361(b) provides that if Section 361(a)
would apply to an exchange but for the fact that the property received in the
exchange consists not only of stock and securities but also other property or
money, then if the corporation receiving such other property or money
distributes it in pursuance of the plan of reorganization, no gain to the
corporation will be recognized.

<PAGE>   7



                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code. Further, since it is represented that the amount of the liabilities
assumed by Acquiring, plus the amount of the liabilities to which the property
of Target is subject, does not exceed the total of the adjusted basis of Target
in the property transferred to Acquiring, there is no excess which would be
considered as gain under Section 357(c) of the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.

                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in its hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by the taxpayer, and (iii) the amount of loss to the
taxpayer which was recognized on such exchange, and increased by (i) the amount
which was treated as a dividend, and (ii) the amount of gain to the taxpayer
which was recognized on such exchange (not including any portion of such gain
which was treated as a dividend).

<PAGE>   8



                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of Acquiring Shares held by the shareholders of Target will have
the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.

OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or on the
         distribution of the Acquiring Shares by Target to the shareholders of
         Target in complete liquidation.
         Sections 361 and 357 of the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.

<PAGE>   9



                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Consequences" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.



                                                     Very truly yours,



                                                     Baker & Hostetler LLP


<PAGE>   10


                                    Exhibit A

                                   May 9, 1998

Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Nationwide Investing Foundation, on behalf of Nationwide Money
Market Fund ("Target"), a series of Nationwide Investing Foundation, and
Nationwide Investing Foundation III, on behalf of Nationwide Money Market Fund
("Acquiring"), a series of Nationwide Investing Foundation III, have entered
into an Agreement and Plan of Reorganization dated as of November 24, 1997 (the
"Agreement"). Pursuant to the Agreement, Target will transfer all of its assets
to Acquiring and Acquiring will assume all of the liabilities of Target. In
accordance with the Agreement, we are requesting your opinion (the "Opinion") on
certain federal income tax consequences as described in Section 8(f) of the
Agreement with respect to the transaction contemplated by such Agreement (the
"Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act") pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the 


<PAGE>   11



         meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For this
         purpose, "control" means the ownership of stock possessing at least 50
         percent of the total combined voting power of all classes of stock
         entitled to vote, or at least 50 percent of the total value of shares
         of all classes of stock.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business and are
         associated with the assets transferred.

         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring, and (b) the amount of
         liabilities, if any, to which the transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                     Nationwide Money Market Fund, a series fund
                                     of Nationwide Investing Foundation



                                     By:
                                        ----------------------------------------


<PAGE>   12


                                    Exhibit B

                                   May 9, 1998

Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Nationwide Investing Foundation, on behalf of Nationwide Money
Market Fund ("Target"), a series of Nationwide Investing Foundation, and
Nationwide Investing Foundation III, on behalf of Nationwide Money Market Fund
("Acquiring"), a series of Nationwide Investing Foundation III, have entered
into an Agreement and Plan of Reorganization dated as of November 24, 1997 (the
"Agreement"). Pursuant to the Agreement, Target will transfer all of its assets
to Acquiring and Acquiring will assume all of the liabilities of Target. In
accordance with the Agreement, we are requesting your opinion (the "Opinion") on
certain federal income tax consequences as described in Section 9(e) of the
Agreement with respect to the transaction contemplated by such Agreement (the
"Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.

         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(h) and 304(c) of the Code. For
         the purpose, "control" means the 

<PAGE>   13



         ownership of stock possessing at least 50 percent of the total combined
         voting power of all classes of stock entitled to vote, or at least 50
         percent of the total value of shares of all classes of stock.

         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (11) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (12) After the Transaction, Acquiring will meet the requirements of,
         and elect to be taxed as a regulated investment company as defined in
         Section 851 of the Code and will continue to be taxed as a regulated
         investment company.

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.



<PAGE>   14




                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                     Nationwide Money Market Fund, a series fund
                                     of Nationwide Investing Foundation III


                                     By:
                                        ----------------------------------------



<PAGE>   15
                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541
   
                                   May 9, 1998
    


Board of Trustees
Nationwide Investing Foundation III
One Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Nationwide Investing Foundation
One Nationwide Plaza
Columbus, OH 43215

         RE:  Nationwide Investing Foundation--Nationwide Growth Fund/Nationwide
              Investing Foundation III--Nationwide Growth Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization, dated as of November
24, 1997 (the "Agreement"), by and between Nationwide Investing Foundation, a
Michigan business trust ("NIF"), on behalf of Nationwide Growth Fund ("Target"),
a series of NIF, and Nationwide Investing Foundation III, an Ohio business trust
("NIF III"), on behalf of the Nationwide Growth Fund ("Acquiring"), a series of
NIF III. Each of Target and Acquiring is a "series" of a "series company" as
described in Rule 18f-2 of the Investment Company Act of 1940, as amended (the
"1940 Act"). The conclusions presented herein are based on the facts and
representations in the Agreement and the Combined Prospectus/Proxy Statement
contained in the Registration Statement No. 333-41175 on Form N-14 (the
"Registration Statement") as filed with the Securities and Exchange Commission
("SEC") (collectively, the "Documents") and the representations set forth in
letters dated May 9, 1998, from Target and Acquiring (the "Representation
Letters") and the applicable tax law as it exists today. We have assumed with
your consent that the facts and representations set forth in the Documents and
the Representation Letters are true and correct.

FACTS
- -----

                  NIF III is a an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"),
and to be treated as a separate corporation under Section 851(h) of the Code.

<PAGE>   16



                  NIF is a Michigan business trust registered under the 1940 Act
as an open-end investment company of the management type and currently has
issued and outstanding shares of beneficial interest, par value $1.00 per share,
of four (4) series, one of which is Target. The shares of Target are redeemable
at net asset value at the option of the shareholders of Target. Target has
elected to qualify as a regulated investment company under Part I of Subchapter
M of the Code and is treated as a separate corporation under Section 851(h) of
the Code.

                  Acquiring seeks to achieve long-term capital appreciation.
Target seeks to achieve long-term capital appreciation without emphasis on
current return. Each of Acquiring and Target seeks to achieve its objective
through investment in common stocks and issues convertible into common stocks.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.

THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for Class D
voting shares of beneficial interest of Acquiring (the "Acquiring Shares").
Target will immediately thereafter terminate its existence and distribute the
Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m. Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target. There are no dissenters or
appraisal rights.

REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce the ownership by the shareholders of
         Target of Acquiring Shares to a number of Acquiring Shares 


<PAGE>   17


         having a value, as of the Exchange Date, of less than 50 percent of the
         value of all of the formerly outstanding shares of Target as of the
         same date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and sold, redeemed, or
         disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends, including distributions of investment
         company taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction and after the
         transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction, other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (11) Acquiring will meet, and Target meets, the requirements of a
         "regulated investment company" as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

<PAGE>   18



         (13) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (14) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and after the exchange, Acquiring will elect to be taxed as a regulated
         investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides that the acquisition
by one corporation, in exchange solely for all or part of its voting stock, of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation immediately prior to the transfer. All payments to dissenters and
all redemptions and distributions (except for regular and normal distributions)
made by the corporation immediately preceding the transfer and which are part of
the plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

<PAGE>   19



                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.
                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Section 368(a)(1)(D) provides that a transfer by a corporation
of all or a part of its assets to another corporation constitutes a
"reorganization" if immediately after the transfer the transferor or one or more
of its shareholders (including persons who were shareholders immediately before
the transfer), or any combination thereof, is in control of the corporation to
which the assets are transferred, but only if, in pursuance of the plan, stock
or securities of the corporation to which the assets are transferred are
distributed in a transaction which qualifies under Sections 354, 355 or 356. For
this purpose, "control" is defined in Sections 368(a)(2)(H) and 304(c). It is
represented that Target will immediately after the Exchange Date terminate its
existence and will distribute in complete liquidation the Acquiring Shares it
receives in the exchange to the shareholders of Target and shareholders of
Target will be in control of Acquiring within the meaning of Sections
368(a)(2)(H) and 304(c) immediately after the transaction. Target will transfer
substantially all its assets to Acquiring and will in complete liquidation
transfer the Acquiring Shares to its shareholders; therefore, the Acquiring
Shares will be distributed in a transaction which qualifies under Section 354.
Therefore, the transaction will satisfy the definitional requirements of a "D"
reorganization as well as a "C" reorganization.

                  Section 368(a)(2)(A) provides that if a transaction is
described in both Sections 368(a)(1)(C) and 368(a)(1)(D), such transaction shall
be treated as described only in Section 368(a)(1)(D).

                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction in certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or (ii) use a significant
portion of the acquired corporation's historic business assets in a business. It
is represented that after the transaction Acquiring will continue the historic
business of Target or use a significant portion of such historic business assets
in its business. Accordingly, the transaction should meet the continuity of
business enterprise requirement.

<PAGE>   20



                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or
otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(D) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of the plan of
reorganization, solely for stock or securities in another corporation, which is
"a party to the reorganization." Section 361(b) provides that if Section 361(a)
would apply to an exchange but for the fact that the property received in the
exchange consists not only of stock and securities but also other property or
money, then if the corporation receiving such other property or money
distributes it in pursuance of the plan of reorganization, no gain to the
corporation will be recognized.


<PAGE>   21



                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code. Further, since it is represented that the amount of the liabilities
assumed by Acquiring, plus the amount of the liabilities to which the property
of Target is subject, does not exceed the total of the adjusted basis of Target
in the property transferred to Acquiring, there is no excess which would be
considered as gain under Section 357(c) of the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.

                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in its hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by the taxpayer, and (iii) the amount of loss to the
taxpayer which was recognized on such exchange, and increased by (i) the amount
which was treated as a dividend, and (ii) the amount of gain to the taxpayer
which was recognized on such exchange (not including any portion of such gain
which was treated as a dividend).

<PAGE>   22



                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of Acquiring Shares held by the shareholders of Target will have
the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.

OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or on the
         distribution of the Acquiring Shares by Target to the shareholders of
         Target in complete liquidation.
         Sections 361 and 357 of the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.

<PAGE>   23



                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Consequences" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.


                                                     Very truly yours,



                                                     Baker & Hostetler LLP


   
    

<PAGE>   24
   
                                    Exhibit A

                                   May 9, 1998

Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485
    


Dear Sirs:

   
                  Nationwide Investing Foundation, on behalf of Nationwide
Growth Fund ("Target"), a series of Nationwide Investing Foundation, and
Nationwide Investing Foundation III, on behalf of Nationwide Growth Fund
("Acquiring"), a series of Nationwide Investing Foundation III, have entered
into an Agreement and Plan of Reorganization dated as of November 24, 1997 (the
"Agreement"). Pursuant to the Agreement, Target will transfer all of its assets
to Acquiring and Acquiring will assume all of the liabilities of Target. In
accordance with the Agreement, we are requesting your opinion (the "Opinion") on
certain federal income tax consequences as described in Section 8(f) of the
Agreement with respect to the transaction contemplated by such Agreement (the
"Transaction").
    

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act") pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business and are
         associated with the assets transferred.


<PAGE>   25


         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring, and (b) the amount of
         liabilities, if any, to which the transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

   
                                      Nationwide Growth Fund, a series fund of
                                      Nationwide Investing Foundation


                                      By:
                                         ---------------------------------------
    


<PAGE>   26
   

                                    Exhibit B

                                   May 9, 1998

Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485
    


Dear Sirs:

                  Nationwide Investing Foundation, on behalf of Nationwide
Growth Fund ("Target"), a series of Nationwide Investing Foundation, and
Nationwide Investing Foundation III, on behalf of Nationwide Growth Fund
("Acquiring"), a series of Nationwide Investing Foundation III, have entered
into an Agreement and Plan of Reorganization dated as of November 24, 1997 (the
"Agreement"). Pursuant to the Agreement, Target will transfer all of its assets
to Acquiring and Acquiring will assume all of the liabilities of Target. In
accordance with the Agreement, we are requesting your opinion (the "Opinion") on
certain federal income tax consequences as described in Section 9(e) of the
Agreement with respect to the transaction contemplated by such Agreement (the
"Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.

         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(h) and 304(c) of the Code. For
         the purpose, "control" means the ownership of stock possessing at least
         50 percent of the total combined voting power of all classes of stock
         entitled to vote, or at least 50 percent of the total value of shares
         of all classes of stock.

         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., 


<PAGE>   27


         which is the investment adviser for Acquiring and Target, will pay 50%
         of the costs associated with the Transaction, other than the
         organizational costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (11) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (12) After the Transaction, Acquiring will meet the requirements of,
         and elect to be taxed as a regulated investment company as defined in
         Section 851 of the Code and will continue to be taxed as a regulated
         investment company.

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.



<PAGE>   28


                  The above assumptions and representations of fact were made
         for the purpose of allowing Baker & Hostetler LLP to form and issue the
         Opinion.

                                     Nationwide Growth Fund, a series fund of
                                     Nationwide Investing Foundation III


                                     By:
                                        ----------------------------------------





<PAGE>   29
                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541
   
                                   May 9, 1998
    





Board of Trustees
Nationwide Investing Foundation III
One Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Nationwide Investing Foundation
One Nationwide Plaza
Columbus, OH 43215

                  RE:  Nationwide Investing Foundation--Nationwide 
                       Fund/Nationwide Investing Foundation III--Nationwide Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization, dated as of November
24, 1997 (the "Agreement"), by and between Nationwide Investing Foundation, a
Michigan business trust ("NIF"), on behalf of Nationwide Fund ("Target"), a
series of NIF, and Nationwide Investing Foundation III, an Ohio business trust
("NIF III"), on behalf of the Nationwide Fund ("Acquiring"), a series of NIF
III. Each of Target and Acquiring is a "series" of a "series company" as
described in Rule 18f-2 of the Investment Company Act of 1940, as amended (the
"1940 Act"). The conclusions presented herein are based on the facts and
representations in the Agreement and the Combined Prospectus/Proxy Statement
contained in the Registration Statement No. 333-41175 on Form N-14 (the
"Registration Statement") as filed with the Securities and Exchange Commission
("SEC") (collectively, the "Documents") and the representations set forth in
letters dated May 9, 1998, from Target and Acquiring (the "Representation
Letters") and the applicable tax law as it exists today. We have assumed with
your consent that the facts and representations set forth in the Documents and
the Representation Letters are true and correct.

FACTS
- -----

                  NIF III is a an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"),
and to be treated as a separate corporation under Section 851(h) of the Code.

                  NIF is a Michigan business trust registered under the 1940 Act
as an open-end investment company of the management type and currently has
issued and outstanding shares of beneficial interest, par value $1.00 per share,
of four (4) series, one of which is Target. The shares of Target are redeemable
at net asset value at the option of the shareholders of Target. Target has
elected to qualify as a regulated 

<PAGE>   30



investment company under Part I of Subchapter M of the Code and is treated as a
separate corporation under Section 851(h) of the Code.

                  Acquiring seeks to achieve total return from a flexible
combination of current income and capital appreciation. Target seeks to achieve
total return from a flexible combination of current income and capital
appreciation. Each of Acquiring and Target seeks to achieve its objective
through investment in common stocks and convertible securities, other equity
securities, bonds and money market instruments.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.

THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for Class D
voting shares of beneficial interest of Acquiring (the "Acquiring Shares").
Target will immediately thereafter terminate its existence and distribute the
Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m. Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target. There are no dissenters or
appraisal rights.

REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce the ownership by the shareholders of
         Target of Acquiring Shares to a number of Acquiring Shares having a
         value, as of the Exchange Date, of less than 50 percent of the value of
         all of the formerly outstanding shares of Target as of the same date.
         For purposes of this representation, shares of 


<PAGE>   31


         Target and Acquiring held by shareholders of Target and sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends, including distributions of investment
         company taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction and after the
         transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction, other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (11) Acquiring will meet, and Target meets, the requirements of a
         "regulated investment company" as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.


<PAGE>   32


         (13) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (14) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and after the exchange, Acquiring will elect to be taxed as a regulated
         investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides that the acquisition
by one corporation, in exchange solely for all or part of its voting stock, of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation immediately prior to the transfer. All payments to dissenters and
all redemptions and distributions (except for regular and normal distributions)
made by the corporation immediately preceding the transfer and which are part of
the plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

<PAGE>   33



                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.

                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Section 368(a)(1)(D) provides that a transfer by a corporation
of all or a part of its assets to another corporation constitutes a
"reorganization" if immediately after the transfer the transferor or one or more
of its shareholders (including persons who were shareholders immediately before
the transfer), or any combination thereof, is in control of the corporation to
which the assets are transferred, but only if, in pursuance of the plan, stock
or securities of the corporation to which the assets are transferred are
distributed in a transaction which qualifies under Sections 354, 355 or 356. For
this purpose, "control" is defined in Sections 368(a)(2)(H) and 304(c). It is
represented that Target will immediately after the Exchange Date terminate its
existence and will distribute in complete liquidation the Acquiring Shares it
receives in the exchange to the shareholders of Target and shareholders of
Target will be in control of Acquiring within the meaning of Sections
368(a)(2)(H) and 304(c) immediately after the transaction. Target will transfer
substantially all its assets to Acquiring and will in complete liquidation
transfer the Acquiring Shares to its shareholders; therefore, the Acquiring
Shares will be distributed in a transaction which qualifies under Section 354.
Therefore, the transaction will satisfy the definitional requirements of a "D"
reorganization as well as a "C" reorganization.

                  Section 368(a)(2)(A) provides that if a transaction is
described in both Sections 368(a)(1)(C) and 368(a)(1)(D), such transaction shall
be treated as described only in Section 368(a)(1)(D).

                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction in certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or (ii) use a significant
portion of the acquired corporation's historic business assets in a business. It
is represented that after the transaction Acquiring will continue the historic
business of Target or use a significant portion of such historic business assets
in its business. Accordingly, the transaction should meet the continuity of
business enterprise requirement.

<PAGE>   34



                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or
otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(D) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of the plan of
reorganization, solely for stock or securities in another corporation, which is
"a party to the reorganization." Section 361(b) provides that if Section 361(a)
would apply to an exchange but for the fact that the property received in the
exchange consists not only of stock and securities but also other property or
money, then if the corporation receiving such other property or money
distributes it in pursuance of the plan of reorganization, no gain to the
corporation will be recognized.

<PAGE>   35



                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code. Further, since it is represented that the amount of the liabilities
assumed by Acquiring, plus the amount of the liabilities to which the property
of Target is subject, does not exceed the total of the adjusted basis of Target
in the property transferred to Acquiring, there is no excess which would be
considered as gain under Section 357(c) of the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.

                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in its hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by the taxpayer, and (iii) the amount of loss to the
taxpayer which was recognized on such exchange, and increased by (i) the amount
which was treated as a dividend, and (ii) the amount of gain to the taxpayer
which was recognized on such exchange (not including any portion of such gain
which was treated as a dividend).

<PAGE>   36



                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of Acquiring Shares held by the shareholders of Target will have
the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.

OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or on the
         distribution of the Acquiring Shares by Target to the shareholders of
         Target in complete liquidation.
         Sections 361 and 357 of the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.


<PAGE>   37


                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Consequences" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.

                                                     Very truly yours,



                                                     Baker & Hostetler LLP


<PAGE>   38


                                    Exhibit A

                                   May 9, 1998

Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Nationwide Investing Foundation, on behalf of Nationwide Fund
("Target"), a series of Nationwide Investing Foundation, and Nationwide
Investing Foundation III, on behalf of Nationwide Fund ("Acquiring"), a series
of Nationwide Investing Foundation III, have entered into an Agreement and Plan
of Reorganization dated as of November 24, 1997 (the "Agreement"). Pursuant to
the Agreement, Target will transfer all of its assets to Acquiring and Acquiring
will assume all of the liabilities of Target. In accordance with the Agreement,
we are requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 8(f) of the Agreement with respect to the
transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act") pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the 


<PAGE>   39



         meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For this
         purpose, "control" means the ownership of stock possessing at least 50
         percent of the total combined voting power of all classes of stock
         entitled to vote, or at least 50 percent of the total value of shares
         of all classes of stock.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business and are
         associated with the assets transferred.

         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring, and (b) the amount of
         liabilities, if any, to which the transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                           Nationwide Fund, a series fund of
                                           Nationwide Investing Foundation


                                           By:
                                              ----------------------------------


<PAGE>   40


                                    Exhibit B
                                   May 9, 1998
Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Nationwide Investing Foundation, on behalf of Nationwide Fund
("Target"), a series of Nationwide Investing Foundation, and Nationwide
Investing Foundation III, on behalf of Nationwide Fund ("Acquiring"), a series
of Nationwide Investing Foundation III, have entered into an Agreement and Plan
of Reorganization dated as of November 24, 1997 (the "Agreement"). Pursuant to
the Agreement, Target will transfer all of its assets to Acquiring and Acquiring
will assume all of the liabilities of Target. In accordance with the Agreement,
we are requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 9(e) of the Agreement with respect to the
transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.

         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(h) and 304(c) of the Code. For
         the purpose, "control" means the ownership of stock possessing at least
         50 percent of the total combined voting power of all classes of stock
         entitled to vote, or at least 50 percent of the total value of shares
         of all classes of stock.


<PAGE>   41


         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (11) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (12) After the Transaction, Acquiring will meet the requirements of,
         and elect to be taxed as a regulated investment company as defined in
         Section 851 of the Code and will continue to be taxed as a regulated
         investment company.

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                          Nationwide Fund, a series fund of
                                          Nationwide Investing Foundation III


                                          By:
                                             ----------------------------------


<PAGE>   42
                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541
   
                                   May 9, 1998
    


Board of Trustees
Nationwide Investing Foundation III
One Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Nationwide Investing Foundation
One Nationwide Plaza
Columbus, OH 43215

                  RE:  Nationwide Investing Foundation--Nationwide Bond 
                       Fund/Nationwide  Investing Foundation III--Nationwide 
                       Bond Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization, dated as of November
24, 1997 (the "Agreement"), by and between Nationwide Investing Foundation, a
Michigan business trust ("NIF"), on behalf of Nationwide Bond Fund ("Target"), a
series of NIF, and Nationwide Investing Foundation III, an Ohio business trust
("NIF III"), on behalf of the Nationwide Bond Fund ("Acquiring"), a series of
NIF III. Each of Target and Acquiring is a "series" of a "series company" as
described in Rule 18f-2 of the Investment Company Act of 1940, as amended (the
"1940 Act"). The conclusions presented herein are based on the facts and
representations in the Agreement and the Combined Prospectus/Proxy Statement
contained in the Registration Statement No. 333-41775 on Form N-14 (the
"Registration Statement") as filed with the Securities and Exchange Commission
("SEC") (collectively, the "Documents") and the representations set forth in
letters dated May 9, 1998, from Target and Acquiring (the "Representation
Letters") and the applicable tax law as it exists today. We have assumed with
your consent that the facts and representations set forth in the Documents and
the Representation Letters are true and correct.

FACTS
- -----

                  NIF III is a an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"),
and to be treated as a separate corporation under Section 851(h) of the Code.

                  NIF is a Michigan business trust registered under the 1940 Act
as an open-end investment company of the management type and currently has
issued and outstanding shares of beneficial interest, par value $1.00 per share,
of four (4) series, one of which is Target. The shares of Target are redeemable


<PAGE>   43



at net asset value at the option of the shareholders of Target. Target has
elected to qualify as a regulated investment company under Part I of Subchapter
M of the Code and is treated as a separate corporation under Section 851(h) of
the Code.

                  Acquiring seeks a high level of income consistent with
preservation of capital. Target seeks to generate a high level of income,
consistent with capital preservation, through investment in high-quality bonds
and other fixed-income securities. Each of Acquiring and Target seeks to achieve
its objective through investment in fixed income securities, primarily corporate
debt securities.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.

THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for Class D
voting shares of beneficial interest of Acquiring (the "Acquiring Shares").
Target will immediately thereafter terminate its existence and distribute the
Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m. Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target. There are no dissenters or
appraisal rights.

REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce the ownership by the shareholders of
         Target of Acquiring Shares to a number of Acquiring Shares having a
         value, as of the Exchange Date, of less than 50 percent of the value of
         all of the formerly outstanding shares of Target as of the same date.
         For purposes of this representation, shares of 

<PAGE>   44



         Target and Acquiring held by shareholders of Target and sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends, including distributions of investment
         company taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction and after the
         transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction, other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (11) Acquiring will meet, and Target meets, the requirements of a
         "regulated investment company" as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

<PAGE>   45



         (13) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (14) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and after the exchange, Acquiring will elect to be taxed as a regulated
         investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides that the acquisition
by one corporation, in exchange solely for all or part of its voting stock, of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation immediately prior to the transfer. All payments to dissenters and
all redemptions and distributions (except for regular and normal distributions)
made by the corporation immediately preceding the transfer and which are part of
the plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

<PAGE>   46



                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.

                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Section 368(a)(1)(D) provides that a transfer by a corporation
of all or a part of its assets to another corporation constitutes a
"reorganization" if immediately after the transfer the transferor or one or more
of its shareholders (including persons who were shareholders immediately before
the transfer), or any combination thereof, is in control of the corporation to
which the assets are transferred, but only if, in pursuance of the plan, stock
or securities of the corporation to which the assets are transferred are
distributed in a transaction which qualifies under Sections 354, 355 or 356. For
this purpose, "control" is defined in Sections 368(a)(2)(H) and 304(c). It is
represented that Target will immediately after the Exchange Date terminate its
existence and will distribute in complete liquidation the Acquiring Shares it
receives in the exchange to the shareholders of Target and shareholders of
Target will be in control of Acquiring within the meaning of Sections
368(a)(2)(H) and 304(c) immediately after the transaction. Target will transfer
substantially all its assets to Acquiring and will in complete liquidation
transfer the Acquiring Shares to its shareholders; therefore, the Acquiring
Shares will be distributed in a transaction which qualifies under Section 354.
Therefore, the transaction will satisfy the definitional requirements of a "D"
reorganization as well as a "C" reorganization.

                  Section 368(a)(2)(A) provides that if a transaction is
described in both Sections 368(a)(1)(C) and 368(a)(1)(D), such transaction shall
be treated as described only in Section 368(a)(1)(D).

                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction in certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or (ii) use a significant
portion of the acquired corporation's historic business assets in a business. It
is represented that after the transaction Acquiring will continue the historic
business of Target or use a significant portion of such historic business assets
in its business. Accordingly, the transaction should meet the continuity of
business enterprise requirement.

<PAGE>   47


                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or
otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(D) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of the plan of
reorganization, solely for stock or securities in another corporation, which is
"a party to the reorganization." Section 361(b) provides that if Section 361(a)
would apply to an exchange but for the fact that the property received in the
exchange consists not only of stock and securities but also other property or
money, then if the corporation receiving such other property or money
distributes it in pursuance of the plan of reorganization, no gain to the
corporation will be recognized.

<PAGE>   48



                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code. Further, since it is represented that the amount of the liabilities
assumed by Acquiring, plus the amount of the liabilities to which the property
of Target is subject, does not exceed the total of the adjusted basis of Target
in the property transferred to Acquiring, there is no excess which would be
considered as gain under Section 357(c) of the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.

                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in its hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by the taxpayer, and (iii) the amount of loss to the
taxpayer which was recognized on such exchange, and increased by (i) the amount
which was treated as a dividend, and (ii) the amount of gain to the taxpayer
which was recognized on such exchange (not including any portion of such gain
which was treated as a dividend).

<PAGE>   49



                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of Acquiring Shares held by the shareholders of Target will have
the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.

OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or on the
         distribution of the Acquiring Shares by Target to the shareholders of
         Target in complete liquidation.
         Sections 361 and 357 of the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.

<PAGE>   50



                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Consequences" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.

                                               Very truly yours,



                                               Baker & Hostetler LLP


<PAGE>   51


                                    Exhibit A

                                   May 9, 1998

Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485
Dear Sirs:

                  Nationwide Investing Foundation, on behalf of Nationwide Bond
Fund ("Target"), a series of Nationwide Investing Foundation, and Nationwide
Investing Foundation III, on behalf of Nationwide Bond Fund ("Acquiring"), a
series of Nationwide Investing Foundation III, have entered into an Agreement
and Plan of Reorganization dated as of November 24, 1997 (the "Agreement").
Pursuant to the Agreement, Target will transfer all of its assets to Acquiring
and Acquiring will assume all of the liabilities of Target. In accordance with
the Agreement, we are requesting your opinion (the "Opinion") on certain federal
income tax consequences as described in Section 8(f) of the Agreement with
respect to the transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act") pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all 


<PAGE>   52


         classes of stock entitled to vote, or at least 50 percent of the total
         value of shares of all classes of stock.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business and are
         associated with the assets transferred.

         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring, and (b) the amount of
         liabilities, if any, to which the transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                       Nationwide Bond Fund, a series fund of

                                       Nationwide Investing Foundation



                                       By:
                                          ------------------------------------


<PAGE>   53


                                    Exhibit B

                                   May 9, 1998



Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

   
                  Nationwide Investing Foundation, on behalf of Nationwide Bond
Fund ("Target"), a series of Nationwide Investing Foundation, and Nationwide
Investing Foundation III, on behalf of Nationwide Bond Fund ("Acquiring"), a
series of Nationwide Investing Foundation III, have entered into an Agreement
and Plan of Reorganization dated as of November 24, 1997 (the "Agreement").
Pursuant to the Agreement, Target will transfer all of its assets to Acquiring
and Acquiring will assume all of the liabilities of Target. In accordance with
the Agreement, we are requesting your opinion (the "Opinion") on certain federal
income tax consequences as described in Section 9(e) of the Agreement with
respect to the transaction contemplated by such Agreement (the "Transaction").
    

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.

   
         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(h) and 304(c) of the Code. For
         the purpose, "control" means the ownership of stock possessing at least
         50 percent of the total combined voting power of all classes of stock
         entitled to vote, or at least 50 percent of the total value of shares
         of all classes of stock.
    


<PAGE>   54



         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

   
         (11) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that,
         if exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (12) After the Transaction, Acquiring will meet the requirements of,
         and elect to be taxed as a regulated investment company as defined in
         Section 851 of the Code and will continue to be taxed as a regulated
         investment company.
    

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

   
                                      Nationwide Bond Fund, a series of
                                      Nationwide Investing Foundation III
    

                                      By:
                                         --------------------------------------


<PAGE>   55
                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541
   
                                   May 9, 1998
    





Board of Trustees
Nationwide Investing Foundation III
One Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Nationwide Investing Foundation II
One Nationwide Plaza
Columbus, OH 43215

                  RE: Nationwide Investing Foundation II -- Nationwide U.S.
                      Government Income Fund/Nationwide Investing Foundation III
                      --Nationwide Intermediate U.S. Government Bond Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization, dated as of November
24, 1997 (the "Agreement"), by and between Nationwide Investing Foundation II, a
Massachusetts business trust ("NIF II"), on behalf of Nationwide U.S. Government
Income Fund ("Target"), a series of NIF II, and Nationwide Investing Foundation
III, an Ohio business trust ("NIF III"), on behalf of the Nationwide
Intermediate U.S. Government Bond Fund ("Acquiring"), a series of NIF III. Each
of Target and Acquiring is a "series" of a "series company" as described in Rule
18f-2 of the Investment Company Act of 1940, as amended (the "1940 Act"). The
conclusions presented herein are based on the facts and representations in the
Agreement and the Combined Prospectus/Proxy Statement contained in the
Registration Statement No. 333-41175 on Form N-14 (the "Registration Statement")
as filed with the Securities and Exchange Commission ("SEC") (collectively, the
"Documents") and the representations set forth in letters dated May 9, 1998,
from Target and Acquiring (the "Representation Letters") and the applicable tax
law as it exists today. We have assumed with your consent that the facts and
representations set forth in the Documents and the Representation Letters are
true and correct.



FACTS
- -----

                  NIF III is a an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter 


<PAGE>   56



M of the Internal Revenue Code of 1986, as amended (the "Code"), and to be
treated as a separate corporation under Section 851(h) of the Code.

                  NIF II is a Massachusetts business trust registered under the
1940 Act as an open-end investment company of the management type and currently
has issued and outstanding shares of beneficial interest, par value $1.00 per
share, of two (2) series, one of which is Target. The shares of Target are
redeemable at net asset value at the option of the shareholders of Target.
Target has elected to qualify as a regulated investment company under Part I of
Subchapter M of the Code and is treated as a separate corporation under Section
851(h) of the Code.

                  Acquiring seeks to achieve a high level of current income
consistent with the preservation of capital. Target seeks to achieve a high
level of current income consistent with the preservation of capital. Each of
Acquiring and Target seeks to achieve its objective through investment in
securities of the U. S. Government and its agencies and instrumentalities.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.

THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for Class D
voting shares of beneficial interest of Acquiring (the "Acquiring Shares").
Target will immediately thereafter terminate its existence and distribute the
Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m. Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target. There are no dissenters or
appraisal rights.

REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.


<PAGE>   57


         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce the ownership by the shareholders of
         Target of Acquiring Shares to a number of Acquiring Shares having a
         value, as of the Exchange Date, of less than 50 percent of the value of
         all of the formerly outstanding shares of Target as of the same date.
         For purposes of this representation, shares of Target and Acquiring
         held by shareholders of Target and sold, redeemed, or disposed of prior
         or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends, including distributions of investment
         company taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction and after the
         transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction, other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

<PAGE>   58



         (11) Acquiring will meet, and Target meets, the requirements of a
         "regulated investment company" as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (13) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (14) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and after the exchange, Acquiring will elect to be taxed as a regulated
         investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides that the acquisition
by one corporation, in exchange solely for all or part of its voting stock, of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation 


<PAGE>   59


immediately prior to the transfer. All payments to dissenters and all
redemptions and distributions (except for regular and normal distributions) made
by the corporation immediately preceding the transfer and which are part of the
plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.

                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Section 368(a)(1)(D) provides that a transfer by a corporation
of all or a part of its assets to another corporation constitutes a
"reorganization" if immediately after the transfer the transferor or one or more
of its shareholders (including persons who were shareholders immediately before
the transfer), or any combination thereof, is in control of the corporation to
which the assets are transferred, but only if, in pursuance of the plan, stock
or securities of the corporation to which the assets are transferred are
distributed in a transaction which qualifies under Sections 354, 355 or 356. For
this purpose, "control" is defined in Sections 368(a)(2)(H) and 304(c). It is
represented that Target will immediately after the Exchange Date terminate its
existence and will distribute in complete liquidation the Acquiring Shares it
receives in the exchange to the shareholders of Target and shareholders of
Target will be in control of Acquiring within the meaning of Sections
368(a)(2)(H) and 304(c) immediately after the transaction. Target will transfer
substantially all its assets to Acquiring and will in complete liquidation
transfer the Acquiring Shares to its shareholders; therefore, the Acquiring
Shares will be distributed in a transaction which qualifies under Section 354.
Therefore, the transaction will satisfy the definitional requirements of a "D"
reorganization as well as a "C" reorganization.

                  Section 368(a)(2)(A) provides that if a transaction is
described in both Sections 368(a)(1)(C) and 368(a)(1)(D), such transaction shall
be treated as described only in Section 368(a)(1)(D).

                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction in certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or 


<PAGE>   60



(ii) use a significant portion of the acquired corporation's historic business
assets in a business. It is represented that after the transaction Acquiring
will continue the historic business of Target or use a significant portion of
such historic business assets in its business. Accordingly, the transaction
should meet the continuity of business enterprise requirement.

                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or
otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(D) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of 

<PAGE>   61


the plan of reorganization, solely for stock or securities in another
corporation, which is "a party to the reorganization." Section 361(b) provides
that if Section 361(a) would apply to an exchange but for the fact that the
property received in the exchange consists not only of stock and securities but
also other property or money, then if the corporation receiving such other
property or money distributes it in pursuance of the plan of reorganization, no
gain to the corporation will be recognized.

                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code. Further, since it is represented that the amount of the liabilities
assumed by Acquiring, plus the amount of the liabilities to which the property
of Target is subject, does not exceed the total of the adjusted basis of Target
in the property transferred to Acquiring, there is no excess which would be
considered as gain under Section 357(c) of the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.

                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in its hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by 

<PAGE>   62



the taxpayer, and (iii) the amount of loss to the taxpayer which was recognized
on such exchange, and increased by (i) the amount which was treated as a
dividend, and (ii) the amount of gain to the taxpayer which was recognized on
such exchange (not including any portion of such gain which was treated as a
dividend).

                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of Acquiring Shares held by the shareholders of Target will have
the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.

OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or on the
         distribution of the Acquiring Shares by Target to the shareholders of
         Target in complete liquidation.
         Sections 361 and 357 of the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

<PAGE>   63


- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.

                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Consequences" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.

                                           Very truly yours,



                                           Baker & Hostetler LLP


<PAGE>   64


                                    Exhibit A



                                   May 9, 1998





Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Nationwide Investing Foundation II, on behalf of Nationwide
U.S. Government Income Fund ("Target"), a series of Nationwide Investing
Foundation II, and Nationwide Investing Foundation III, on behalf of Nationwide
Intermediate U.S. Government Bond Fund ("Acquiring"), a series of Nationwide
Investing Foundation III, have entered into an Agreement and Plan of
Reorganization dated as of November 24, 1997 (the "Agreement"). Pursuant to the
Agreement, Target will transfer all of its assets to Acquiring and Acquiring
will assume all of the liabilities of Target. In accordance with the Agreement,
we are requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 8(f) of the Agreement with respect to the
transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act") pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of 


<PAGE>   65


         investment company taxable income and net capital gain) made by Target
         immediately preceding the Exchange Date will be included as assets of
         Target held immediately prior to the Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business and are
         associated with the assets transferred.

         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring, and (b) the amount of
         liabilities, if any, to which the transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.



<PAGE>   66




                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                Nationwide U.S. Government Income Fund, a series
                                fund of Nationwide Investing Foundation II



                                By:
                                   --------------------------------------------


<PAGE>   67


                                    Exhibit B

                                   May 9, 1998



Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Nationwide Investing Foundation II, on behalf of Nationwide
U.S. Government Income Fund ("Target"), a series of Nationwide Investing
Foundation II, and Nationwide Investing Foundation III, on behalf of Nationwide
Intermediate U.S. Government Bond Fund ("Acquiring"), a series of Nationwide
Investing Foundation III, have entered into an Agreement and Plan of
Reorganization dated as of November 24, 1997 (the "Agreement"). Pursuant to the
Agreement, Target will transfer all of its assets to Acquiring and Acquiring
will assume all of the liabilities of Target. In accordance with the Agreement,
we are requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 9(e) of the Agreement with respect to the
transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.

         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and 


<PAGE>   68


         after the Transaction the shareholders of Target will be in control of
         Acquiring within the meaning of Sections 368(a)(2)(h) and 304(c) of the
         Code. For the purpose, "control" means the ownership of stock
         possessing at least 50 percent of the total combined voting power of
         all classes of stock entitled to vote, or at least 50 percent of the
         total value of shares of all classes of stock.

         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (11) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (12) After the Transaction, Acquiring will meet the requirements of,
         and elect to be taxed as a regulated investment company as defined in
         Section 851 of the Code and will continue to be taxed as a regulated
         investment company.

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.



<PAGE>   69




                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                 Nationwide Intermediate U.S. Government Bond 
                                 Fund, a series fund of Nationwide Investing 
                                 Foundation III



                                 By:
                                    ------------------------------------------





<PAGE>   70
                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541
   
                                  May 9, 1998
    



Board of Trustees
Nationwide Investing Foundation III
One Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Nationwide Investing Foundation II
One Nationwide Plaza
Columbus, OH 43215

                  RE: Nationwide Investing Foundation II -- Nationwide Tax-Free
                      Income Fund/Nationwide Investing Foundation III--
                      Nationwide Tax-Free Income Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization, dated as of November
24, 1997 (the "Agreement"), by and between Nationwide Investing Foundation II, a
Massachusetts business trust ("NIF II"), on behalf of Nationwide Tax-Free Income
Fund ("Target"), a series of NIF II, and Nationwide Investing Foundation III, an
Ohio business trust ("NIF III"), on behalf of the Nationwide Tax-Free Income
Fund ("Acquiring"), a series of NIF III. Each of Target and Acquiring is a
"series" of a "series company" as described in Rule 18f-2 of the Investment
Company Act of 1940, as amended (the "1940 Act"). The conclusions presented
herein are based on the facts and representations in the Agreement and the
Combined Prospectus/Proxy Statement contained in the Registration Statement No.
333-41175 on Form N-14 (the "Registration Statement") as filed with the
Securities and Exchange Commission ("SEC") (collectively, the "Documents") and
the representations set forth in letters dated May 9, 1998, from Target and
Acquiring (the "Representation Letters") and the applicable tax law as it exists
today. We have assumed with your consent that the facts and representations set
forth in the Documents and the Representation Letters are true and correct.

FACTS
- -----

                  NIF III is a an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"),
and to be treated as a separate corporation under Section 851(h) of the Code.

<PAGE>   71



                  NIF II is a Massachusetts business trust registered under the
1940 Act as an open-end investment company of the management type and currently
has issued and outstanding shares of beneficial interest, par value $1.00 per
share, of two (2) series, one of which is Target. The shares of Target are
redeemable at net asset value at the option of the shareholders of Target.
Target has elected to qualify as a regulated investment company under Part I of
Subchapter M of the Code and is treated as a separate corporation under Section
851(h) of the Code.

                  Acquiring seeks to achieve a high level of current income
exempt from Federal income tax consistent with the preservation of capital.
Target seeks to achieve a high level of current income exempt from Federal
income tax consistent with the preservation of capital. Each of Acquiring and
Target seeks to achieve its objective through investment in investment grade
municipal obligations.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.

THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for Class D
voting shares of beneficial interest of Acquiring (the "Acquiring Shares").
Target will immediately thereafter terminate its existence and distribute the
Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m. Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target. There are no dissenters or
appraisal rights.

REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce 


<PAGE>   72


         the ownership by the shareholders of Target of Acquiring Shares to a
         number of Acquiring Shares having a value, as of the Exchange Date, of
         less than 50 percent of the value of all of the formerly outstanding
         shares of Target as of the same date. For purposes of this
         representation, shares of Target and Acquiring held by shareholders of
         Target and sold, redeemed, or disposed of prior or subsequent to the
         Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends, including distributions of investment
         company taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction and after the
         transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction, other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (11) Acquiring will meet, and Target meets, the requirements of a
         "regulated investment company" as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

<PAGE>   73



         (13) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (14) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and after the exchange, Acquiring will elect to be taxed as a regulated
         investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides that the acquisition
by one corporation, in exchange solely for all or part of its voting stock, of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation immediately prior to the transfer. All payments to dissenters and
all redemptions and distributions (except for regular and normal distributions)
made by the corporation immediately preceding the transfer and which are part of
the plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

<PAGE>   74



                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.
                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Section 368(a)(1)(D) provides that a transfer by a corporation
of all or a part of its assets to another corporation constitutes a
"reorganization" if immediately after the transfer the transferor or one or more
of its shareholders (including persons who were shareholders immediately before
the transfer), or any combination thereof, is in control of the corporation to
which the assets are transferred, but only if, in pursuance of the plan, stock
or securities of the corporation to which the assets are transferred are
distributed in a transaction which qualifies under Sections 354, 355 or 356. For
this purpose, "control" is defined in Sections 368(a)(2)(H) and 304(c). It is
represented that Target will immediately after the Exchange Date terminate its
existence and will distribute in complete liquidation the Acquiring Shares it
receives in the exchange to the shareholders of Target and shareholders of
Target will be in control of Acquiring within the meaning of Sections
368(a)(2)(H) and 304(c) immediately after the transaction. Target will transfer
substantially all its assets to Acquiring and will in complete liquidation
transfer the Acquiring Shares to its shareholders; therefore, the Acquiring
Shares will be distributed in a transaction which qualifies under Section 354.
Therefore, the transaction will satisfy the definitional requirements of a "D"
reorganization as well as a "C" reorganization.

                  Section 368(a)(2)(A) provides that if a transaction is
described in both Sections 368(a)(1)(C) and 368(a)(1)(D), such transaction shall
be treated as described only in Section 368(a)(1)(D).

                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction in certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or (ii) use a significant
portion of the acquired corporation's historic business assets in a business. It
is represented that after the transaction Acquiring will continue the historic
business of Target or use a significant portion of such historic business assets
in its business. Accordingly, the transaction should meet the continuity of
business enterprise requirement.

<PAGE>   75



                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or
otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(D) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of the plan of
reorganization, solely for stock or securities in another corporation, which is
"a party to the reorganization." Section 361(b) provides that if Section 361(a)
would apply to an exchange but for the fact that the property received in the
exchange consists not only of stock and securities but also other property or
money, then if the corporation receiving such other property or money
distributes it in pursuance of the plan of reorganization, no gain to the
corporation will be recognized.

<PAGE>   76



                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code. Further, since it is represented that the amount of the liabilities
assumed by Acquiring, plus the amount of the liabilities to which the property
of Target is subject, does not exceed the total of the adjusted basis of Target
in the property transferred to Acquiring, there is no excess which would be
considered as gain under Section 357(c) of the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.

                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in its hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by the taxpayer, and (iii) the amount of loss to the
taxpayer which was recognized on such exchange, and increased by (i) the amount
which was treated as a dividend, and (ii) the amount of gain to the taxpayer
which was recognized on such exchange (not including any portion of such gain
which was treated as a dividend).

<PAGE>   77



                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of Acquiring Shares held by the shareholders of Target will have
the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.

OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or on the
         distribution of the Acquiring Shares by Target to the shareholders of
         Target in complete liquidation.
         Sections 361 and 357 of the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.

<PAGE>   78



                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Consequences" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.

                                                     Very truly yours,



                                                     Baker & Hostetler LLP





<PAGE>   79


                                    Exhibit A




                                   May 9, 1998





Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Nationwide Investing Foundation II, on behalf of Nationwide
Tax-Free Income Fund ("Target"), a series of Nationwide Investing Foundation II,
and Nationwide Investing Foundation III, on behalf of Nationwide Tax-Free Income
Fund ("Acquiring"), a series of Nationwide Investing Foundation III, have
entered into an Agreement and Plan of Reorganization dated as of November 24,
1997 (the "Agreement"). Pursuant to the Agreement, Target will transfer all of
its assets to Acquiring and Acquiring will assume all of the liabilities of
Target. In accordance with the Agreement, we are requesting your opinion (the
"Opinion") on certain federal income tax consequences as described in Section
8(f) of the Agreement with respect to the transaction contemplated by such
Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act") 


<PAGE>   80


         pursuant to a demand of a shareholder and regular, normal dividends
         including distributions of investment company taxable income and net
         capital gain) made by Target immediately preceding the Exchange Date
         will be included as assets of Target held immediately prior to the
         Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business and are
         associated with the assets transferred.

         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring, and (b) the amount of
         liabilities, if any, to which the transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.



<PAGE>   81


                  The above assumptions and representations of fact were made
         for the purpose of allowing Baker & Hostetler LLP to form and issue the
         Opinion.

                                      Nationwide Tax-Free Income Fund, a series
                                      fund of Nationwide Investing Foundation II



                                      By:
                                         ---------------------------------------









<PAGE>   82


                                    Exhibit B

                                   May 9, 1998

Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Nationwide Investing Foundation II, on behalf of Nationwide
Tax-Free Income Fund ("Target"), a series of Nationwide Investing Foundation II,
and Nationwide Investing Foundation III, on behalf of Nationwide Tax-Free Income
Fund ("Acquiring"), a series of Nationwide Investing Foundation III, have
entered into an Agreement and Plan of Reorganization dated as of November 24,
1997 (the "Agreement"). Pursuant to the Agreement, Target will transfer all of
its assets to Acquiring and Acquiring will assume all of the liabilities of
Target. In accordance with the Agreement, we are requesting your opinion (the
"Opinion") on certain federal income tax consequences as described in Section
9(e) of the Agreement with respect to the transaction contemplated by such
Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.

         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(h) and 304(c) of the Code. For
         the purpose, "control" means the 


<PAGE>   83


         ownership of stock possessing at least 50 percent of the total combined
         voting power of all classes of stock entitled to vote, or at least 50
         percent of the total value of shares of all classes of stock.

         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (11) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (12) After the Transaction, Acquiring will meet the requirements of,
         and elect to be taxed as a regulated investment company as defined in
         Section 851 of the Code and will continue to be taxed as a regulated
         investment company.

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.



<PAGE>   84




                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                    Nationwide Tax-Free Income Fund, a series
                                    fund of Nationwide Investing Foundation III


                                    By:
                                       ----------------------------------------








<PAGE>   85
                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541
   
                                  May 9, 1998
    



Board of Trustees
Nationwide Investing Foundation III
Three Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Financial Horizons Investment Trust
Three Nationwide Plaza
Columbus, OH 43215

                  RE: Financial Horizon Investment Trust--Cash Reserve  
                      Fund/Nationwide Investing Foundation III--Nationwide Money
                      Market Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization dated as of November
24, 1997, as amended as of December 30, 1997 (the "Agreement"), by and between
Financial Horizons Investment Trust ("FHIT") a Massachusetts business trust, on
behalf of Cash Reserve Fund ("Target"), a series of FHIT and Nationwide
Investing Foundation III ("NIF III"), an Ohio business trust, on behalf of
Nationwide Money Market Fund ("Acquiring"), a series of NIF III. Each of Target
and Acquiring is a "series" of a "series company" as described in Rule 18f-2 of
the Investment Company Act of 1940, as amended (the "1940 Act"). The conclusions
presented herein are based on the facts and representations in the Agreement and
the Combined Prospectus/Proxy Statement contained in the Registration Statement
No. 333-41175 on Form N-14 (the "Registration Statement") as filed with the
Securities and Exchange Commission ("SEC") (collectively, the "Documents") and
the representations set forth in letters dated May 9, 1998, from Target and
Acquiring (the "Representation Letters") and the applicable tax law as it exists
today. We have assumed with your consent that the facts and representations set
forth in the Documents and the Representations Letters are true and correct.

FACTS
- -----

                  NIF III is an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"),
and to be treated as a separate corporation under Section 851(h) of the Code.

                  FHIT is a Massachusetts business trust registered under the
1940 Act as an open-end investment company of the management type and currently
has issued and outstanding shares of beneficial interest, par value $1.00 per
share, of four "series," one of which is Target. The shares of 


<PAGE>   86


Target are redeemable at net asset value at the option of shareholders of
Target. Target has elected to qualify as a regulated investment company under
Part I of Subchapter M of the Code and is treated as a separate corporation
under Section 851(h) of the Code.

                  Target seeks to achieve a high level of current income
consistent with preservation of capital and maintenance of liquidity through
investment in a diversified portfolio of high quality money market instruments
maturing in 397 days or less. Acquiring seeks to achieve a high level of current
income consistent with the preservation of capital. Acquiring and Target invest
in a diversified portfolio of money market instruments with remaining maturities
of 397 days or less and a dollar weighted average maturity of 90 days or less.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.


THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for voting
shares of beneficial interest, without any class designation, of Acquiring (the
"Acquiring Shares"). Target will immediately thereafter terminate its existence
and distribute the Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m., Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target.


REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce 


<PAGE>   87


         the ownership by the shareholders of Target of Acquiring Shares to a
         number of Acquiring Shares having a value, as of the Exchange Date, of
         less than 50 percent of the value of all of the formerly outstanding
         shares of Target as of the same date. For purposes of this
         representation, shares of Target and Acquiring held by shareholders of
         Target and sold, redeemed, or disposed of prior or subsequent to the
         Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends including distributions of investment company
         taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (11) Target meets and Acquiring will meet the requirements of a
         regulated investment company as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (13) The fair market value of the assets of Target transferred to
         Acquiring will equal or exceed the sum of (a) the liabilities assumed
         by Acquiring and (b) the amount of liabilities, if any, to which the
         transferred assets are subject.


<PAGE>   88


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

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and, after the exchange, Acquiring will elect to be taxed as a
         regulated investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides the acquisition by
one corporation in exchange solely for all or part of its voting stock of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation immediately prior to the transfer. All payments to dissenters and
all redemptions and distributions (except for regular and normal distributions)
made by the corporation immediately preceding the transfer and which are part of
the plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.

                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Target will transfer substantially all its assets to Acquiring
and will in complete liquidation transfer the Acquiring Shares to its
shareholders; therefore, the Acquiring Shares will be 


<PAGE>   89


distributed in a transaction which qualifies under Section 354. Therefore, the
transaction will satisfy the definitional requirements of "C" reorganization.


                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction of certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or (ii) use a significant
portion of the acquired corporation's historic business assets in a business. It
is represented that after the transaction Acquiring will continue the historic
business of Target or use a significant portion of such historic business assets
in its business. Accordingly, the transaction should meet the continuity of
business enterprise requirement.

                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or


<PAGE>   90



otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(C) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of the plan of
reorganization, solely for stock or securities in another corporation, which is
"a party to the reorganization." Section 361(b) provides that if Section 361(a)
would apply to an exchange but for the fact that the property received in the
exchange consists not only of stock and securities but also other property or
money, then if the corporation receiving such other property or money
distributes it in pursuance of the plan of reorganization, no gain to the
corporation will be recognized.

                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.

<PAGE>   91



                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by the taxpayer, and (iii) the amount of loss to the
taxpayer which was recognized on such exchange, and increased by (i) the amount
which was treated as a dividend, and (ii) the amount of gain to the taxpayer
which was recognized on such exchange (not including any portion of such gain
which was treated as a dividend).

                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of the Acquiring Shares held by the shareholders of Target will
have the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.


OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or 


<PAGE>   92



         on the distribution of the Acquiring Shares by Target to the
         shareholders of Target in complete liquidation. Sections 361 and 357 of
         the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.

                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Considerations" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.

                                             Very truly yours,



                                             Baker & Hostetler LLP


<PAGE>   93



                                    Exhibit A



                                   May 9, 1998



Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Financial Horizons Investment Trust, on behalf of Cash Reserve
Fund ("Target"), a series of Financial Horizons Investment Trust, and Nationwide
Investing Foundation III, on behalf of Nationwide Money Market Fund
("Acquiring"), a series of Nationwide Investing Foundation III, have entered
into an Agreement and Plan of Reorganization dated as of November 24, 1997, as
amended as of December 30, 1998 (the "Agreement"). Pursuant to the Agreement,
Target will transfer all of its assets to Acquiring and Acquiring will assume
all of the liabilities of Target. In accordance with the Agreement, we are
requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 8(f) of the Agreement with respect to the
overall transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act") pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding 


<PAGE>   94


         the Exchange Date will be included as assets of Target held immediately
         prior to the Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value of the assets of Target transferred to
         Acquiring will equal or exceed the sum of (a) the liabilities assumed
         by Acquiring, (b) the amount of liabilities, if any, to which the
         transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                       Cash Reserve Fund, a series of Financial
                                       Horizons Investment Trust


                                       By:
                                          -------------------------------------


<PAGE>   95



                                    Exhibit B



                                   May 9, 1998



Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Financial Horizons Investment Trust, on behalf of Cash Reserve
Fund ("Target"), a series of Financial Horizons Investment Trust, and Nationwide
Investing Foundation III, on behalf of Nationwide Money Market Fund
("Acquiring"), a series of Nationwide Investing Foundation III, have entered
into an Agreement and Plan of Reorganization dated as of November 24, 1997, as
amended as of December 30, 1997 (the "Agreement"). Pursuant to the Agreement,
Target will transfer all of its assets to Acquiring and Acquiring will assume
all of the liabilities of Target. In accordance with the Agreement, we are
requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 9(e) of the Agreement with respect to the
transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.


<PAGE>   96



         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction.

         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

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

         (12) Acquiring will elect to be taxed as a regulated investment company
         as defined in Section 851 of the Code.

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                    Nationwide Money Market Fund, a series of
                                    Nationwide Investing Foundation III


                                    By:
                                       ----------------------------------------


<PAGE>   97
                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541

   
                                   May 9, 1998
    



Board of Trustees
Nationwide Investing Foundation III
One Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Financial Horizons Investment Trust
One Nationwide Plaza
Columbus, OH 43215

                  RE: Financial Horizons Investment Trust--Growth 
                      Fund/Nationwide Investing Foundation III--Nationwide Mid 
                      Cap Growth Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization, dated as of November
24, 1997, as amended as of December 30, 1997 (the "Agreement"), by and between
Financial Horizons Investment Trust, a Massachusetts business trust ("FHIT"), on
behalf of Growth Fund ("Target"), a series of FHIT, and Nationwide Investing
Foundation III, an Ohio business trust ("NIF III"), on behalf of the Nationwide
Mid Cap Growth Fund ("Acquiring"), a series of NIF III. Each of Target and
Acquiring is a "series" of a "series company" as described in Rule 18f-2 of the
Investment Company Act of 1940, as amended (the "1940 Act"). The conclusions
presented herein are based on the facts and representations in the Agreement and
the Combined Prospectus/Proxy Statement contained in the Registration Statement
No. 333-41175 on Form N-14 (the "Registration Statement") as filed with the
Securities and Exchange Commission ("SEC") (collectively, the "Documents") and
the representations set forth in letters dated May 9, 1998, from Target and
Acquiring (the "Representation Letters") and the applicable tax law as it exists
today. We have assumed with your consent that the facts and representations set
forth in the Documents and the Representation Letters are true and correct.

FACTS
- -----

                  NIF III is a an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"),
and to be treated as a separate corporation under Section 851(h) of the Code.

                  FHIT is a Massachusetts business trust registered under the
1940 Act as an open-end investment company of the management type and currently
has issued and outstanding shares of 


<PAGE>   98


beneficial interest, par value $1.00 per share, of four (4) series, one of which
is Target. The shares of Target are redeemable at net asset value at the option
of the shareholders of Target. Target has elected to qualify as a regulated
investment company under Part I of Subchapter M of the Code and is treated as a
separate corporation under Section 851(h) of the Code.

                  Acquiring seeks to achieve long-term capital appreciation.
Target seeks to achieve long-term capital appreciation through investing in
equity securities with above average, long-term growth potential. Each of
Acquiring and Target seeks to achieve its objective through investment in common
stocks and issues convertible into common stocks. Acquiring will concentrate its
investments in mid-cap companies with market capitalization or sales between
$300 million and $5 billion.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.

THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for Class D
voting shares of beneficial interest of Acquiring (the "Acquiring Shares").
Target will immediately thereafter terminate its existence and distribute the
Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m. Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target. There are no dissenters or
appraisal rights.

REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce the ownership by the shareholders of
         Target of Acquiring Shares to a number of Acquiring Shares 


<PAGE>   99



         having a value, as of the Exchange Date, of less than 50 percent of the
         value of all of the formerly outstanding shares of Target as of the
         same date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and sold, redeemed, or
         disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends, including distributions of investment
         company taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction and after the
         transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction, other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (11) Acquiring will meet, and Target meets, the requirements of a
         "regulated investment company" as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

<PAGE>   100



         (13) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (14) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and after the exchange, Acquiring will elect to be taxed as a regulated
         investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides that the acquisition
by one corporation, in exchange solely for all or part of its voting stock, of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation immediately prior to the transfer. All payments to dissenters and
all redemptions and distributions (except for regular and normal distributions)
made by the corporation immediately preceding the transfer and which are part of
the plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

<PAGE>   101



                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.
                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Section 368(a)(1)(D) provides that a transfer by a corporation
of all or a part of its assets to another corporation constitutes a
"reorganization" if immediately after the transfer the transferor or one or more
of its shareholders (including persons who were shareholders immediately before
the transfer), or any combination thereof, is in control of the corporation to
which the assets are transferred, but only if, in pursuance of the plan, stock
or securities of the corporation to which the assets are transferred are
distributed in a transaction which qualifies under Sections 354, 355 or 356. For
this purpose, "control" is defined in Sections 368(a)(2)(H) and 304(c). It is
represented that Target will immediately after the Exchange Date terminate its
existence and will distribute in complete liquidation the Acquiring Shares it
receives in the exchange to the shareholders of Target and shareholders of
Target will be in control of Acquiring within the meaning of Sections
368(a)(2)(H) and 304(c) immediately after the transaction. Target will transfer
substantially all its assets to Acquiring and will in complete liquidation
transfer the Acquiring Shares to its shareholders; therefore, the Acquiring
Shares will be distributed in a transaction which qualifies under Section 354.
Therefore, the transaction will satisfy the definitional requirements of a "D"
reorganization as well as a "C" reorganization.

                  Section 368(a)(2)(A) provides that if a transaction is
described in both Sections 368(a)(1)(C) and 368(a)(1)(D), such transaction shall
be treated as described only in Section 368(a)(1)(D).

                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction in certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or (ii) use a significant
portion of the acquired corporation's historic business assets in a business. It
is represented that after the transaction Acquiring will continue the historic
business of Target or use a significant portion of such historic business assets
in its business. Accordingly, the transaction should meet the continuity of
business enterprise requirement.

<PAGE>   102



                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or
otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(D) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of the plan of
reorganization, solely for stock or securities in another corporation, which is
"a party to the reorganization." Section 361(b) provides that if Section 361(a)
would apply to an exchange but for the fact that the property received in the
exchange consists not only of stock and securities but also other property or
money, then if the corporation receiving such other property or money
distributes it in pursuance of the plan of reorganization, no gain to the
corporation will be recognized.

<PAGE>   103



                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code. Further, since it is represented that the amount of the liabilities
assumed by Acquiring, plus the amount of the liabilities to which the property
of Target is subject, does not exceed the total of the adjusted basis of Target
in the property transferred to Acquiring, there is no excess which would be
considered as gain under Section 357(c) of the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.

                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in its hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by the taxpayer, and (iii) the amount of loss to the
taxpayer which was recognized on such exchange, and increased by (i) the amount
which was treated as a dividend, and (ii) the amount of gain to the taxpayer
which was recognized on such exchange (not including any portion of such gain
which was treated as a dividend).

<PAGE>   104



                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of Acquiring Shares held by the shareholders of Target will have
the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.

OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or on the
         distribution of the Acquiring Shares by Target to the shareholders of
         Target in complete liquidation.
         Sections 361 and 357 of the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.


<PAGE>   105


                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Consequences" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.

                                            Very truly yours,



                                            Baker & Hostetler LLP


<PAGE>   106




                                    Exhibit A



                                   May 9, 1998





Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Financial Horizons Investment Trust on behalf of Growth Fund
("Target"), a series of Financial Horizons Investment Trust and Nationwide
Investing Foundation III, on behalf of Nationwide Mid Cap Growth Fund
("Acquiring"), a series of Nationwide Investing Foundation III, have entered
into an Agreement and Plan of Reorganization dated as of November 24, 1997, as
amended as of December 30, 1997 (the "Agreement"). Pursuant to the Agreement,
Target will transfer all of its assets to Acquiring and Acquiring will assume
all of the liabilities of Target. In accordance with the Agreement, we are
requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 8(f) of the Agreement with respect to the
transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as 


<PAGE>   107


         required by Section 22(e) of the Investment Company Act of 1940, as
         amended (the "1940 Act") pursuant to a demand of a shareholder and
         regular, normal dividends including distributions of investment company
         taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business and are
         associated with the assets transferred.

         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring, and (b) the amount of
         liabilities, if any, to which the transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.



<PAGE>   108




                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                             Growth Fund, a series fund of
                                             Financial Horizons Investment Trust


                                             By:
                                                 -------------------------------








<PAGE>   109


                                    Exhibit B

                                   May 9, 1998



Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Financial Horizons Investment Trust, on behalf of Growth Fund
("Target"), a series of Financial Horizons Investment Trust, and Nationwide
Investing Foundation III, on behalf of Nationwide Mid Cap Growth Fund
("Acquiring"), a series of Nationwide Investing Foundation III, have entered
into an Agreement and Plan of Reorganization dated as of November 24, 1997, as
amended as of December 30, 1997 (the "Agreement"). Pursuant to the Agreement,
Target will transfer all of its assets to Acquiring and Acquiring will assume
all of the liabilities of Target. In accordance with the Agreement, we are
requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 9(e) of the Agreement with respect to the
transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.

         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and 


<PAGE>   110


         after the Transaction the shareholders of Target will be in control of
         Acquiring within the meaning of Sections 368(a)(2)(h) and 304(c) of the
         Code. For the purpose, "control" means the ownership of stock
         possessing at least 50 percent of the total combined voting power of
         all classes of stock entitled to vote, or at least 50 percent of the
         total value of shares of all classes of stock.

         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (11) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (12) After the Transaction, Acquiring will meet the requirements of,
         and elect to be taxed as a regulated investment company as defined in
         Section 851 of the Code and will continue to be taxed as a regulated
         investment company.

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.



<PAGE>   111




                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                   Nationwide Mid Cap Growth Fund, a series fund
                                   of Nationwide Investing Foundation III


                                   By:
                                      -----------------------------------------





<PAGE>   112
                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541
   
                                  May 9, 1998
    




Board of Trustees
Nationwide Investing Foundation III
One Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Financial Horizons Investment Trust
One Nationwide Plaza
Columbus, OH 43215

                  RE: Financial Horizons Investment Trust -- Government Bond 
                      Fund/Nationwide Investing Foundation III--Nationwide 
                      Long-Term U.S. Government Bond Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization, dated as of November
24, 1997, as amended as of December 30, 1997 (the "Agreement"), by and between
Financial Horizons Investment Trust, a Massachusetts business trust ("FHIT"), on
behalf of Government Bond Fund ("Target"), a series of FHIT, and Nationwide
Investing Foundation III, an Ohio business trust ("NIF III"), on behalf of the
Nationwide Long-Term U.S. Government Bond Fund ("Acquiring"), a series of NIF
III. Each of Target and Acquiring is a "series" of a "series company" as
described in Rule 18f-2 of the Investment Company Act of 1940, as amended (the
"1940 Act"). The conclusions presented herein are based on the facts and
representations in the Agreement and the Combined Prospectus/Proxy Statement
contained in the Registration Statement No. 333-41175 on Form N-14 (the
"Registration Statement") as filed with the Securities and Exchange Commission
("SEC") (collectively, the "Documents") and the representations set forth in
letters dated May 9, 1998, from Target and Acquiring (the "Representation
Letters") and the applicable tax law as it exists today. We have assumed with
your consent that the facts and representations set forth in the Documents and
the Representation Letters are true and correct.

FACTS
- -----

                  NIF III is a an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"),
and to be treated as a separate corporation under Section 851(h) of the Code.


<PAGE>   113


                  FHIT is a Massachusetts business trust registered under the
1940 Act as an open-end investment company of the management type and currently
has issued and outstanding shares of beneficial interest, par value $1.00 per
share, of four (4) series, one of which is Target. The shares of Target are
redeemable at net asset value at the option of the shareholders of Target.
Target has elected to qualify as a regulated investment company under Part I of
Subchapter M of the Code and is treated as a separate corporation under Section
851(h) of the Code.

                  Acquiring seeks a high level of current income consistent with
a preservation of capital. Target seeks a high level of current income
consistent with a preservation of capital. Each of Acquiring and Target seeks to
achieve its objective through investment in securities issued or guaranteed by
the U.S. Government.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.

THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for Class D
voting shares of beneficial interest of Acquiring (the "Acquiring Shares").
Target will immediately thereafter terminate its existence and distribute the
Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m. Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target. There are no dissenters or
appraisal rights.

REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce 


<PAGE>   114



         the ownership by the shareholders of Target of Acquiring Shares to a
         number of Acquiring Shares having a value, as of the Exchange Date, of
         less than 50 percent of the value of all of the formerly outstanding
         shares of Target as of the same date. For purposes of this
         representation, shares of Target and Acquiring held by shareholders of
         Target and sold, redeemed, or disposed of prior or subsequent to the
         Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends, including distributions of investment
         company taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction and after the
         transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction, other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (11) Acquiring will meet, and Target meets, the requirements of a
         "regulated investment company" as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

<PAGE>   115



         (13) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (14) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and after the exchange, Acquiring will elect to be taxed as a regulated
         investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides that the acquisition
by one corporation, in exchange solely for all or part of its voting stock, of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation immediately prior to the transfer. All payments to dissenters and
all redemptions and distributions (except for regular and normal distributions)
made by the corporation immediately preceding the transfer and which are part of
the plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

<PAGE>   116



                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.

                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Section 368(a)(1)(D) provides that a transfer by a corporation
of all or a part of its assets to another corporation constitutes a
"reorganization" if immediately after the transfer the transferor or one or more
of its shareholders (including persons who were shareholders immediately before
the transfer), or any combination thereof, is in control of the corporation to
which the assets are transferred, but only if, in pursuance of the plan, stock
or securities of the corporation to which the assets are transferred are
distributed in a transaction which qualifies under Sections 354, 355 or 356. For
this purpose, "control" is defined in Sections 368(a)(2)(H) and 304(c). It is
represented that Target will immediately after the Exchange Date terminate its
existence and will distribute in complete liquidation the Acquiring Shares it
receives in the exchange to the shareholders of Target and shareholders of
Target will be in control of Acquiring within the meaning of Sections
368(a)(2)(H) and 304(c) immediately after the transaction. Target will transfer
substantially all its assets to Acquiring and will in complete liquidation
transfer the Acquiring Shares to its shareholders; therefore, the Acquiring
Shares will be distributed in a transaction which qualifies under Section 354.
Therefore, the transaction will satisfy the definitional requirements of a "D"
reorganization as well as a "C" reorganization.

                  Section 368(a)(2)(A) provides that if a transaction is
described in both Sections 368(a)(1)(C) and 368(a)(1)(D), such transaction shall
be treated as described only in Section 368(a)(1)(D).

                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction in certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or (ii) use a significant
portion of the acquired corporation's historic business assets in a business. It
is represented that after the transaction Acquiring will continue the historic
business of Target or use a significant portion of such historic business assets
in its business. Accordingly, the transaction should meet the continuity of
business enterprise requirement.

<PAGE>   117



                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or
otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(D) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of the plan of
reorganization, solely for stock or securities in another corporation, which is
"a party to the reorganization." Section 361(b) provides that if Section 361(a)
would apply to an exchange but for the fact that the property received in the
exchange consists not only of stock and securities but also other property or
money, then if the corporation receiving such other property or money
distributes it in pursuance of the plan of reorganization, no gain to the
corporation will be recognized.


<PAGE>   118


                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code. Further, since it is represented that the amount of the liabilities
assumed by Acquiring, plus the amount of the liabilities to which the property
of Target is subject, does not exceed the total of the adjusted basis of Target
in the property transferred to Acquiring, there is no excess which would be
considered as gain under Section 357(c) of the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.

                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in its hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by the taxpayer, and (iii) the amount of loss to the
taxpayer which was recognized on such exchange, and increased by (i) the amount
which was treated as a dividend, and (ii) the amount of gain to the taxpayer
which was recognized on such exchange (not including any portion of such gain
which was treated as a dividend).

<PAGE>   119



                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of Acquiring Shares held by the shareholders of Target will have
the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.

OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or on the
         distribution of the Acquiring Shares by Target to the shareholders of
         Target in complete liquidation.
         Sections 361 and 357 of the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.

<PAGE>   120



                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Consequences" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.

                                             Very truly yours,



                                             Baker & Hostetler LLP


<PAGE>   121


                                    Exhibit A



                                   May 9, 1998





Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Financial Horizons Investment Trust, on behalf of Government
Bond Fund ("Target"), a series of Financial Horizons Investment Trust, and
Nationwide Investing Foundation III, on behalf of Nationwide Long-Term U.S.
Government Bond Fund ("Acquiring"), a series of Nationwide Investing Foundation
III, have entered into an Agreement and Plan of Reorganization dated as of
November 24, 1997, as amended as of December 30, 1997 (the "Agreement").
Pursuant to the Agreement, Target will transfer all of its assets to Acquiring
and Acquiring will assume all of the liabilities of Target. In accordance with
the Agreement, we are requesting your opinion (the "Opinion") on certain federal
income tax consequences as described in Section 8(f) of the Agreement with
respect to the transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act") pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of 


<PAGE>   122



         investment company taxable income and net capital gain) made by Target
         immediately preceding the Exchange Date will be included as assets of
         Target held immediately prior to the Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and after the
         Transaction the shareholders of Target will be in control of Acquiring
         within the meaning of Sections 368(a)(2)(H) and 304(c) of the Code. For
         this purpose, "control" means the ownership of stock possessing at
         least 50 percent of the total combined voting power of all classes of
         stock entitled to vote, or at least 50 percent of the total value of
         shares of all classes of stock.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business and are
         associated with the assets transferred.

         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring, and (b) the amount of
         liabilities, if any, to which the transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.



<PAGE>   123




                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                        Government Bond Fund, a series fund of
                                        Financial Horizons Investment Trust



                                        By:
                                           ------------------------------------












<PAGE>   124


                                    Exhibit B

                                   May 9, 1998



Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Financial Horizons Investment Fund, on behalf of Government
Bond Fund ("Target"), a series of Financial Horizons Investment Trust, and
Nationwide Investing Foundation III, on behalf of Nationwide Long-Term U. S.
Government Bond Fund ("Acquiring"), a series of Nationwide Investing Foundation
III, have entered into an Agreement and Plan of Reorganization dated as of
November 24, 1997, as amended as of December 30, 1997 (the "Agreement").
Pursuant to the Agreement, Target will transfer all of its assets to Acquiring
and Acquiring will assume all of the liabilities of Target. In accordance with
the Agreement, we are requesting your opinion (the "Opinion") on certain federal
income tax consequences as described in Section 9(e) of the Agreement with
respect to the transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.

         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction and 


<PAGE>   125


         after the Transaction the shareholders of Target will be in control of
         Acquiring within the meaning of Sections 368(a)(2)(h) and 304(c) of the
         Code. For the purpose, "control" means the ownership of stock
         possessing at least 50 percent of the total combined voting power of
         all classes of stock entitled to vote, or at least 50 percent of the
         total value of shares of all classes of stock.

         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

         (11) Acquiring does not own, directly or indirectly, nor has it owned
         during the past five years, directly or indirectly, any shares of
         Target. On the Exchange Date, Acquiring will not have outstanding any
         warrants, options, convertible securities or any other type of right
         pursuant to which any person could acquire shares in Acquiring that, if
         exercised or converted, would affect the Target shareholders'
         acquisition or retention of control of Acquiring. For this purpose
         "control" means the ownership of stock possessing at least 50 percent
         of the total combined voting power of all classes of stock entitled to
         vote, or at least 50 percent of the total value of shares of all
         classes of stock.

         (12) After the Transaction, Acquiring will meet the requirements of,
         and elect to be taxed as a regulated investment company as defined in
         Section 851 of the Code and will continue to be taxed as a regulated
         investment company.

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.



<PAGE>   126




                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                               Nationwide Long-Term  U. S. Government Bond Fund,
                               a series fund of Nationwide Investing Foundation
                               III


                               By:
                                  --------------------------------------------






<PAGE>   127
                              BAKER & HOSTETLER LLP
                        65 East State Street, Suite 2100
                            Columbus, Ohio 43215-4260
                                 (614) 228-1541
   
                                   May 9, 1998
    



Board of Trustees
Nationwide Investing Foundation III
Three Nationwide Plaza
Columbus, OH 43215

Board of Trustees
Financial Horizons Investment Trust
Three Nationwide Plaza
Columbus, OH 43215

                  RE: Financial Horizon Investment Trust--Municipal Bond 
                      Fund/Nationwide Investing Foundation III--Nationwide 
                      Tax-Free Income Fund

Members of the Boards:

                  This is in response to your request for our tax opinion in
connection with the Agreement and Plan of Reorganization dated as of November
24, 1997, as amended as of December 30, 1997 (the "Agreement"), by and between
Financial Horizons Investment Trust ("FHIT"), a Massachusetts business trust, on
behalf of Municipal Bond Fund ("Target"), a series of FHIT and Nationwide
Investing Foundation III ("NIF III"), an Ohio business trust, on behalf of
Nationwide Tax-Free Income Fund ("Acquiring"), a series of NIF III. Each of
Target and Acquiring is a "series" of a "series company" as described in Rule
18f-2 of the Investment Company Act of 1940, as amended (the "1940 Act"). The
conclusions presented herein are based on the facts and representations in the
Agreement and the Combined Prospectus/Proxy Statement contained in the
Registration Statement No. 333-41175 on Form N-14 (the "Registration Statement")
as filed with the Securities and Exchange Commission ("SEC") (collectively, the
"Documents") and the representations set forth in letters dated May 9, 1998,
from Target and Acquiring (the "Representation Letters") and the applicable tax
law as it exists today. We have assumed with your consent that the facts and
representations set forth in the Documents and the Representations Letters are
true and correct.

FACTS
- -----

                  NIF III is an Ohio business trust registered under the 1940
Act as an open-end investment company of the management type and has authorized
and proposes to issue one or more classes of voting shares of beneficial
interest, without par value, of nine (9) "series", one of which is Acquiring.
Acquiring will elect to qualify as a regulated investment company under Part I
of Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"),
and to be treated as a separate corporation under Section 851(h) of the Code.

                  FHIT is a Massachusetts business trust registered under the
1940 Act as an open-end investment company of the management type and currently
has issued and outstanding shares of 


<PAGE>   128


beneficial interest, par value $1.00 per share, of four "series," one of which
is Target. The shares of Target are redeemable at net asset value at the option
of shareholders of Target. Target has elected to qualify as a regulated
investment company under Part I of Subchapter M of the Code and is treated as a
separate corporation under Section 851(h) of the Code.

                  Target seeks to achieve a high level of municipal income
consistent with preservation of capital. Target invests in investment grade
municipal obligations. Acquiring seeks to achieve a high level of municipal
income consistent with the preservation of capital. Acquiring invests in
investment grade municipal obligations.

                  By effecting the transaction, Acquiring and Target seek to
achieve a more efficient operation and reduction of certain expenses.


THE EXCHANGE
- ------------

                  Pursuant to the Agreement, Target will transfer all of its
assets and assign all of its liabilities to Acquiring in exchange for Class D
voting shares of beneficial interest of Acquiring (the "Acquiring Shares").
Target will immediately thereafter terminate its existence and distribute the
Acquiring Shares to its shareholders in complete liquidation.

                  As of 9:00 a.m., Eastern Time, on May 9, 1998 ("Exchange
Date"), the assets Target will transfer to Acquiring will consist of all of the
property, including, without limitation, all investments, cash, and dividend or
interest receivables owned by Target and any deferred or prepaid expenses shown
as assets on its books as of 4:00 p.m., Eastern Time, on May 8, 1998 (the
"Valuation Time"). The liabilities assumed will consist of all liabilities,
expenses, costs, charges and reserves, contingent or otherwise, including
liabilities reflected in the unaudited statement of assets and liabilities of
Target as of the Valuation Time.

                  On the Exchange Date, Acquiring will deliver to Target a
number of full and fractional Acquiring Shares having an aggregate net asset
value equal to the value of all the assets transferred (less the assumed
liabilities) of Target as of the Valuation Time. Target will then as part of the
reorganization distribute the Acquiring Shares pro rata to its shareholders in
complete liquidation. The shareholders of Target will receive only Acquiring
Shares in exchange for their shares of Target.


REPRESENTATIONS
- ---------------

                  In order to determine the consequences of the transaction for
federal income tax purposes, with your permission we have relied on the
following assumptions and representations which we have received from Target
and/or Acquiring:

         (1) The fair market value of the Acquiring Shares received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of Acquiring Shares received in the
         transaction that would reduce the ownership by the shareholders of
         Target of Acquiring Shares to a number of Acquiring Shares 

<PAGE>   129



         having a value, as of the Exchange Date, of less than 50 percent of the
         value of all of the formerly outstanding shares of Target as of the
         same date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and sold, redeemed, or
         disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the 1940 Act pursuant to a demand of a shareholder and
         regular, normal dividends including distributions of investment company
         taxable income and net capital gain) made by Target immediately
         preceding the Exchange Date will be included as assets of Target held
         immediately prior to the Exchange Date.

         (4) Acquiring has no plan or intention to reacquire any of the
         Acquiring Shares issued in the transaction, except in connection with
         its legal obligation under Section 22(e) of the 1940 Act.

         (5) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the transaction, except for
         dispositions made in the ordinary course of business.

         (6) Pursuant to the transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         Acquiring Shares it receives in the transaction.

         (7) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (8) Following the transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (9) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the transaction other than the organizational
         costs of Acquiring.

         (10) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (11) Target meets and Acquiring will meet the requirements of a
         regulated investment company as defined in Section 851 of the Code.

         (12) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (13) The fair market value of the assets of Target transferred to
         Acquiring will equal or exceed the sum of (a) the liabilities assumed
         by Acquiring and (b) the amount of liabilities, if any, to which the
         transferred assets are subject.


<PAGE>   130



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

         (15) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code,
         and, after the exchange, Acquiring will elect to be taxed as a
         regulated investment company.

         (16) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (17) Target is a series of a business trust and is taxable as a
         corporation. Acquiring is a series of a business trust and will be
         taxable as a corporation.

APPLICABLE LAW
- --------------

                  Section 368(a)(1)(C) of the Code provides the acquisition by
one corporation in exchange solely for all or part of its voting stock of
substantially all of the properties of another corporation constitutes a
"reorganization" and in determining whether the exchange is solely for stock,
the assumption by the acquiring corporation of a liability of the other, or the
fact that property acquired is subject to a liability, shall be disregarded.
Section 368(a)(2)(B) of the Code provides that if an acquisition of
substantially all the assets would qualify under Section 368(a)(1)(C) of the
Code but for the fact that the acquiring corporation exchanges money or other
property in addition to voting stock and the acquiring corporation acquires,
solely for voting stock, property having a fair market value which is at least
80% of the fair market value of all the property of the other corporation, then
such acquisition shall be treated as qualifying as a "reorganization" under
Section 368(a)(1)(C) of the Code. For this purpose, liabilities assumed by the
acquiring corporation or to which property acquired is subject are treated as
money paid for the property.

                  Rev. Proc. 77-37, 1977-2 C.B. 568, provides that the
"substantially all" requirement is satisfied if there is a transfer of assets
representing at least 90 percent of the fair market value of the net assets and
at least 70 percent of the fair market value of the gross assets held by the
corporation immediately prior to the transfer. All payments to dissenters and
all redemptions and distributions (except for regular and normal distributions)
made by the corporation immediately preceding the transfer and which are part of
the plan of reorganization will be considered as assets held by the corporation
immediately prior to the transfer.

                  It is represented that Acquiring will acquire at least 90
percent of the fair market value of the net assets and at least 70 percent of
the fair market value of the gross assets held by Target immediately prior to
the exchange. Therefore, Acquiring will acquire substantially all the assets of
Target within the meaning of Rev. Proc. 77-37 and Section 368(a)(1)(C) of the
Code.

                  Pursuant to the exchange, solely shares of beneficial interest
of Acquiring, which are shares entitled to vote, will be exchanged for the
assets of Target. The shareholders of Target have no dissenters or appraisal
rights.

                  Target will transfer substantially all its assets to Acquiring
and will in complete liquidation transfer the Acquiring Shares to its
shareholders; therefore, the Acquiring Shares will be 


<PAGE>   131


distributed in a transaction which qualifies under Section 354. Therefore, the
transaction will satisfy the definitional requirements of "C" reorganization.

                  In addition to the definitional requirements set forth in the
statute, in order for an exchange to be a tax-free reorganization, certain
requirements set forth under Section 1.368-1(b) of the Income Tax Regulations
(the "Regulations") must be satisfied. The Regulations provide that the purpose
of the reorganization provisions of the Code is to except from the general rule
of taxability certain specifically described exchanges incident to such
readjustments of corporate structures made in one of the particular ways
specified in the Code, as are required by business exigencies and which effect
only a readjustment of continuing interest in property under the modified
corporate forms. Requisite to a reorganization under the Code are a continuity
of the business enterprise under the modified corporate form and a continuity of
interest therein on the part of those persons who, directly or indirectly, were
the owners of the enterprise prior to the reorganization.

                  To be treated as a reorganization, the exchange must be
planned and carried out for a genuine business purpose. Acquiring and Target
each believes the transaction will permit a more efficient operation and a
reduction of certain expenses. This should satisfy the genuine business purpose
requirement for the exchange.

                  Section 1.368-1(d) of the Regulations provides that continuity
of business enterprise requires that the acquiring corporation either (i)
continue the acquired corporation's historic business or (ii) use a significant
portion of the acquired corporation's historic business assets in a business. It
is represented that after the transaction Acquiring will continue the historic
business of Target or use a significant portion of such historic business assets
in its business. Accordingly, the transaction should meet the continuity of
business enterprise requirement.

                  Under Section 1.368-1(b) of the Regulations, the continuity of
interest doctrine requires that in a reorganization there must be a continuing
interest through stock ownership on the part of those persons who, directly or
indirectly, were the owners of the stock of the acquired corporation prior to
the reorganization. Rev. Proc. 77-37 provides that the continuity of interest
requirement of Section 1.368-1(b) of the Regulations is satisfied if there is
continuing interest through the stock ownership in the acquiring or transferee
corporation on the part of the former shareholders of the acquired or transferor
corporation which is equal in value, as of the effective date of the
reorganization, to at least 50 percent of the value of all of the formerly
outstanding stock of the acquired or transferor corporation as of the same date.

                  It is not necessary that each shareholder of the acquired or
transferor corporation receive in the exchange stock of the acquiring or
transferee corporation, or a corporation in "control" thereof, which is equal in
value to at least 50 percent of the value of his former stock interest in the
acquired or transferor corporation, so long as one or more shareholders of the
acquired or transferor corporation have a continuing interest through stock
ownership in the acquiring or transferee corporation (or a corporation in
"control" thereof) which is, in the aggregate, equal in value to at least 50
percent of the value of all of the formerly outstanding stock of the acquired or
transferor corporation. Sales, redemptions, and other dispositions of stock
occurring prior or, if planned or intended by the shareholder at the time of the
exchange, subsequent to the exchange which are part of the plan of
reorganization will be considered in determining whether there is a 50 percent
continuing interest through stock ownership as of the effective date of the
reorganization.

                  It is represented that there is no plan or intention by the
shareholders of Target who own 1 percent or more of the shares of Target and, to
the best of the knowledge of the management of Target, there is no plan or
intention on the part of remaining shareholders of Target to sell, exchange, or


<PAGE>   132


otherwise dispose of a number of Acquiring Shares that will reduce Target
shareholders' ownership of such stock to a number of shares having, as of the
date of the exchange, a value of less than 50 percent of the total value of all
the formerly outstanding shares of Target as of the same date. Accordingly, the
exchange should meet the continuity of interest requirement.

                  The 50 percent continuity of interest standard set forth in
Rev. Proc. 77-37 is a guideline utilized by the Internal Revenue Service in
determining whether to issue an advance ruling and does not represent how much
continuity of interest is needed in a reorganization as a matter of law. In
fact, in NELSON V. HELVERING, 296 U.S. 374 (1936), the Supreme Court held that
there was a valid reorganization when the continuity of interest was equal to 38
percent.

                  Based upon the analysis set forth above, the exchange should
qualify as a reorganization as described under Section 368(a)(1)(C) of the Code.

                  Section 368(b)(2) of the Code provides that the term "a party
to a reorganization" includes both corporations, in the case of a reorganization
resulting from the acquisition by one corporation of stock or properties of
another corporation. Accordingly, Acquiring and Target will each be "a party to
a reorganization."

                  Section 361(a) of the Code provides that no gain or loss shall
be recognized to a corporation if such corporation is "a party to a
reorganization" and exchanges property, in pursuance of the plan of
reorganization, solely for stock or securities in another corporation, which is
"a party to the reorganization." Section 361(b) provides that if Section 361(a)
would apply to an exchange but for the fact that the property received in the
exchange consists not only of stock and securities but also other property or
money, then if the corporation receiving such other property or money
distributes it in pursuance of the plan of reorganization, no gain to the
corporation will be recognized.

                  Section 357(a) of the Code provides that if the taxpayer
receives property which would be permitted to be received under Section 361
without the recognition of gain if it were the sole consideration, and as a part
of the consideration, another party to the exchange assumes a liability of the
taxpayer, or acquires from the taxpayer property subject to a liability, then
such assumption or acquisition shall not be treated as money or other property,
and shall not prevent the exchange from being within the provisions of Section
361.

                  Since the exchange is a reorganization under Section 368(a) of
the Code and Target is exchanging its property solely for shares of Acquiring
and assumption by Acquiring of its liabilities, no gain or loss will be
recognized by Target by reason of the exchange and Sections 361(a) and 357(a) of
the Code.

                  Section 1032(a) of the Code provides that no gain or loss
shall be recognized to a corporation on the receipt of money or other property
in exchange for stock of such corporation. Accordingly, no gain or loss should
result to Acquiring as a result of the exchange.

                  Section 362(b) of the Code provides that if property was
acquired by a corporation in connection with a reorganization, then the basis of
such property shall be the same as it would be in the hands of the transferor,
increased by the amount of gain recognized to the transferor on such transfer.
Since Acquiring will receive property (i.e., the assets) from Target in
connection with a reorganization within the meaning of Section 368(a) of the
Code and no gain will be recognized by Target, the basis of the assets to be
received by Acquiring will be the same as the basis of those assets in the hands
of Target immediately prior to the transfer.


<PAGE>   133



                  Section 1223(2) of the Code provides that, in determining the
period for which the taxpayer has held property, however acquired, there shall
be included the period for which such property was held by any other person, if
such property has, for purposes of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as it would have in
the hands of such other person. Because the basis of the assets to be received
by Acquiring will be the same as the basis of those assets in the hands of
Target immediately prior to the transfer, the holding period for the assets of
Target to be received by Acquiring will include the period during which such
assets were held by Target.

                  Section 354(a) provides that no gain or loss will be
recognized if stock in a corporation a party to a reorganization is, in
pursuance of the plan of reorganization, exchanged solely for stock in another
corporation a party to the reorganization. Therefore, since the shareholders of
Target, a party to the reorganization, will receive solely shares of Acquiring,
another party to the reorganization, no gain or loss will be recognized by the
shareholders of Target.

                  Section 358(a)(1) of the Code provides that, in the case of an
exchange to which Section 354 applies, the basis of the property permitted to be
received under Section 354 without the recognition of gain or loss shall be the
same as that of the property exchanged, decreased by (i) the fair market value
of any other property (except money) received by the taxpayer, (ii) the amount
of any money received by the taxpayer, and (iii) the amount of loss to the
taxpayer which was recognized on such exchange, and increased by (i) the amount
which was treated as a dividend, and (ii) the amount of gain to the taxpayer
which was recognized on such exchange (not including any portion of such gain
which was treated as a dividend).

                  Since the exchange constitutes an exchange to which Section
354 of the Code applies, the basis of the Acquiring Shares in the hands of the
shareholders of Target will be the same as the basis of the shares of Target
surrendered in the exchange.

                  Section 1223(1) of the Code provides that, in determining the
period for which the taxpayer has held property received in an exchange, there
shall be included the period for which the taxpayer held the property exchanged
if the property has, for the purpose of determining gain or loss from a sale or
exchange, the same basis in whole or in part in his hands as the property
exchanged, provided the property exchanged at the time of such exchange is a
capital asset as defined in Section 1221 or property described in Section 1231.
Since the basis of the Acquiring Shares held by the shareholders of Target will
have the same basis as the stock exchanged, the holding period of the Acquiring
Shares will include the period for which the shares of Target were held,
provided that such shares were held as a capital asset on the date of the
exchange.


OPINION
- -------

                  Based upon and subject to the foregoing, our opinion as to the
federal income tax consequences of the exchange is as follows:

- -        The transfer of all of Target's assets in exchange for Acquiring Shares
         and Acquiring's assumption of all of Target's liabilities, followed by
         Target's distribution of the Acquiring Shares in complete liquidation
         to its shareholders will qualify as a reorganization under Section
         368(a) of the Code. Acquiring and Target will each be "a party to a
         reorganization" within the meaning of Section 368(b) of the Code.

- -        No gain or loss will be recognized to Target upon the transfer of its
         assets to Acquiring in exchange for the Acquiring Shares and the
         assumption by Acquiring of the liabilities of Target or 


<PAGE>   134



         on the distribution of the Acquiring Shares by Target to the
         shareholders of Target in complete liquidation. Sections 361 and 357 of
         the Code.

- -        No gain or loss will be recognized to Acquiring on the receipt of the
         assets of Target and the assumption by Acquiring of liabilities of
         Target in exchange for Acquiring Shares. Section 1032 of the Code.

- -        The basis of the assets of Target in the hands of Acquiring will be the
         same as the basis of such assets in the hands of Target immediately
         prior to the exchange. Section 362(b) of the Code.

- -        The holding period of the property acquired by Acquiring from Target
         will include the holding period of such property in the hands of Target
         immediately prior to the exchange. Section 1223(2) of the Code.

- -        No gain or loss will be recognized by a shareholder of Target on the
         receipt of Acquiring Shares solely in exchange for his shares of
         Target. Section 354 of the Code.

- -        The basis of Acquiring Shares received by a shareholder of Target who
         exchanges shares of Target for Acquiring Shares will be the same as the
         basis of the shares of Target surrendered in the exchange therefor.
         Section 358(a)(1) of the Code.

- -        The holding period of Acquiring Shares received by a shareholder of
         Target will include the holding period of the shares of Target
         surrendered in exchange therefor, provided that the shares of Target
         were capital assets at the date of the exchange. Section 1223(1) of the
         Code.

                  Our opinion is not the equivalent of a ruling from the
Internal Revenue Service and may upon audit be challenged by the Internal
Revenue Service. Our opinion is based on the understanding that the relevant
facts are as set forth in this letter. It is also based on the Code,
Regulations, case law and Internal Revenue Service rulings as they now exist.
These authorities are all subject to change and such change may be made with
retroactive effect. Were there to be such changes after the Exchange Date, or
should the relevant facts prove to be other than as we have reviewed, our
opinion could be affected.

                  We hereby consent to the reference to us under the heading
"Federal Income Tax Considerations" in the Registration Statement and to the
filing of this opinion as an exhibit to the Registration Statement. In giving
this consent, we do not hereby admit that we are within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the SEC promulgated thereunder.

                                          Very truly yours,



                                          Baker & Hostetler LLP


<PAGE>   135




                                    Exhibit A


                                   May 9, 1998



Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Financial Horizons Investment Trust, on behalf of Municipal
Bond Fund ("Target"), a series of Financial Horizons Investment Trust, and
Nationwide Investing Foundation III, on behalf of Nationwide Tax-Free Income
Fund ("Acquiring"), a series of Nationwide Investing Foundation III, have
entered into an Agreement and Plan of Reorganization dated as of November 24,
1997, as amended as of December 30, 1997 (the "Agreement"). Pursuant to the
Agreement, Target will transfer all of its assets to Acquiring and Acquiring
will assume all of the liabilities of Target. In accordance with the Agreement,
we are requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 8(f) of the Agreement with respect to the
overall transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) There is no plan or intention by the shareholders of Target who own
         1 percent or more of the shares of Target, and to the best of the
         knowledge of the management of Target, there is no plan or intention on
         the part of the remaining shareholders of Target to sell, exchange or
         otherwise dispose of a number of shares of Acquiring received in the
         Transaction that would reduce the ownership by the shareholders of
         Target of shares of Acquiring to a number of shares of Acquiring having
         a value, as of the Exchange Date, of less than 50 percent of the value
         of all of the formerly outstanding shares of Target as of the same
         date. For purposes of this representation, shares of Target and
         Acquiring held by shareholders of Target and otherwise sold, redeemed,
         or disposed of prior or subsequent to the Exchange Date are considered.

         (3) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses, and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act") pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding 


<PAGE>   136



         the Exchange Date will be included as assets of Target held immediately
         prior to the Exchange Date.

         (4) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction.

         (5) The liabilities of Target assumed by Acquiring and the liabilities,
         if any, to which the transferred assets of Target are subject were
         incurred by Target in the ordinary course of its business.

         (6) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (7) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (8) Target meets the requirements of a "regulated investment company"
         as defined in Section 851 of the Code.

         (9) Target is not under the jurisdiction of a court in a Title 11 or
         similar case within the meaning of Section 368(a)(3)(A) of the Code.

         (10) The fair market value of the assets of Target transferred to
         Acquiring will equal or exceed the sum of (a) the liabilities assumed
         by Acquiring, (b) the amount of liabilities, if any, to which the
         transferred assets are subject.

         (11) Target has, for all of its taxable periods, elected to be taxed as
         a regulated investment company as defined in Section 851 of the Code.

         (12) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (13) Target is a series of a business trust and is taxable as a
         corporation.

         (14) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                        Municipal Bond Fund, a series of
                                        Financial Horizons Investment Trust


                                        By:
                                           -----------------------------------


<PAGE>   137


                                    Exhibit B



                                   May 9, 1998



Baker & Hostetler LLP
3200 National City Center
1900 East Ninth Street
Cleveland, Ohio 44114-3485

Dear Sirs:

                  Financial Horizons Investment Trust, on behalf of Municipal
Bond Fund ("Target"), a series of Financial Horizons Investment Trust, and
Nationwide Investing Foundation III, on behalf of Nationwide Tax-Free Income
Fund ("Acquiring"), a series of Nationwide Investing Foundation III, have
entered into an Agreement and Plan of Reorganization dated as of November 24,
1997, as amended as of December 30, 1997 (the "Agreement"). Pursuant to the
Agreement, Target will transfer all of its assets to Acquiring and Acquiring
will assume all of the liabilities of Target. In accordance with the Agreement,
we are requesting your opinion (the "Opinion") on certain federal income tax
consequences as described in Section 9(e) of the Agreement with respect to the
transaction contemplated by such Agreement (the "Transaction").

                  In preparing the Opinion, you may rely on the following
representations and/or assumptions relating to the Transaction:

         (1) The fair market value of the shares of Acquiring received by Target
         and each shareholder of Target will be approximately equal to the fair
         market value of the shares of Target surrendered by each of the
         shareholders of Target in the Transaction.

         (2) Acquiring will acquire at least 90 percent of the fair market value
         of the net assets and at least 70 percent of the fair market value of
         the gross assets held by Target immediately prior to the Exchange Date.
         For purposes of this representation, amounts paid to shareholders who
         receive cash or other property, amounts used by Target to pay its
         reorganization expenses and all redemptions and distributions (except
         for redemptions in the ordinary course of its business as required by
         Section 22(e) of the Investment Company Act of 1940, as amended (the
         "1940 Act"), pursuant to a demand of a shareholder and regular, normal
         dividends including distributions of investment company taxable income
         and net capital gain) made by Target immediately preceding the Exchange
         Date will be included as assets of Target held immediately prior to the
         Exchange Date.

         (3) Acquiring has no plan or intention to reacquire any of the shares
         of Acquiring issued in the Transaction, except in connection with its
         legal obligation under Section 22(e) of the 1940 Act.

         (4) Acquiring has no plan or intention to sell or otherwise dispose of
         any of the assets of Target acquired in the Transaction, except for
         dispositions made in the ordinary course of business.


<PAGE>   138


         (5) Pursuant to the Transaction, Target will terminate its existence
         and will in complete liquidation distribute to its shareholders the
         shares of Acquiring it receives in the Transaction.

         (6) Following the Transaction, Acquiring will continue the historic
         business of Target or use a significant portion of Target's historic
         business assets in its business.

         (7) Acquiring, Target and the shareholders of Target will pay their
         respective expenses, if any, incurred in connection with the
         Transaction, except that Nationwide Advisory Services, Inc., which is
         the investment adviser for Acquiring and Target, will pay 50% of the
         costs associated with the Transaction, other than the organizational
         costs of Acquiring.

         (8) There is no intercorporate indebtedness existing between Acquiring
         and Target that was issued, acquired, or will be settled at a discount.

         (9) Acquiring will meet the requirements of a "regulated investment
         company" as defined in Section 851 of the Code.

         (10) The fair market value and the total adjusted basis of the assets
         of Target transferred to Acquiring will equal or exceed the sum of (a)
         the liabilities assumed by Acquiring and (b) the amount of liabilities,
         if any, to which the transferred assets are subject.

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

         (12) Acquiring will elect to be taxed as a regulated investment company
         as defined in Section 851 of the Code.

         (13) None of the compensation to be received by any
         shareholder-employees of Target will be separate consideration for, or
         allocable to, any of their shares of Target; none of the shares of
         Acquiring received by any shareholder-employees will be separate
         consideration for, or allocable to, any employment agreement; and the
         compensation paid to any shareholder-employees will be for services
         actually rendered and will be commensurate with amounts paid to third
         parties bargaining at arm's-length for similar services.

         (14) Acquiring is a series of a business trust and will be taxable as a
         corporation.

         (15) The facts set forth in the Opinion are correct and true.

                  The above assumptions and representations of fact were made
for the purpose of allowing Baker & Hostetler LLP to form and issue the Opinion.

                                    Nationwide Tax-Free Income Fund, a series of
                                    Nationwide Investing Foundation III


                                    By:
                                       -----------------------------------------






WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

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<NAME> NATIONWIDE INVESTING FOUNDATION II
<SERIES>
   <NUMBER> 1
   <NAME> NATIONWIDE TAX-FREE INCOME FUND
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<S>                             <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000779239
<NAME> NATIONWIDE INVESTING FOUNDATION II
<SERIES>
   <NUMBER> 2
   <NAME> NATIONWIDE U.S. GOVERNMENT BOND FUND
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<CURRENCY> U.S. DOLLARS
       
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000832800
<NAME> FINANCIAL HORIZONS INVESTMENT TRUST
<SERIES>
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   <NAME> CASH RESERVE FUND
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000832800
<NAME> FINANCIAL HORIZONS INVESTMENT TRUST
<SERIES>
   <NUMBER> 2
   <NAME> GOVERNMENT BOND FUND
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000832800
<NAME> FINANCIAL HORIZONS INVESTMENT TRUST
<SERIES>
   <NUMBER> 3
   <NAME> MUNICIPAL BOND FUND
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000832800
<NAME> FINANCIAL HORIZONS INVESTMENT TRUST
<SERIES>
   <NUMBER> 4
   <NAME> GROWTH FUND
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<S>                             <C>
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</TABLE>


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