Exhibit 12

                                            ___, 2004



Federated Municipal Securities Income Trust, on behalf of its portfolio,
Federated Michigan Intermediate Municipal Trust
5800 Corporate Drive
Pittsburgh, Pennsylvania  15237

Golden Oak(R)Family of Funds, on behalf of its portfolio,
Golden Oak(R) Michigan Tax Free Bond Portfolio
5800 Corporate Drive
Pittsburgh, Pennsylvania  15237

Ladies and Gentlemen:

     You have  requested  our  opinion  concerning  certain  federal  income tax
consequences of a transaction (the  "Reorganization") in which all of the assets
of Golden Oak(R)  Michigan Tax Free Bond  Portfolio  (the  "Acquired  Fund"),  a
portfolio of the Golden Oak(R) Family of Funds, a Delaware  statutory trust (the
"Golden  Oak(R)  Trust"),  will be acquired by  Federated  Municipal  Securities
Income Trust, a Massachusetts  business trust (the "Federated Trust"), on behalf
of  its  portfolio,   Federated  Michigan  Intermediate   Municipal  Trust  (the
"Acquiring  Fund"),  in exchange  solely for shares of the  Acquiring  Fund (the
"Acquiring Fund Shares"),  which shall  thereafter be distributed to the holders
of the  Class A Shares  and  Institutional  Shares  of the  Acquired  Fund  (the
"Acquired Fund  Shareholders"),  in  liquidation of the Acquired Fund.  Both the
Federated Trust and the Golden Oak(R) Trust are registered  open-end  management
investment  companies which qualify as regulated  investment companies described
in Section 851(a) of the Internal Revenue Code of 1986, as amended (the "Code").
The terms and conditions of the Reorganization are set forth in an Agreement and
Plan of Reorganization dated as of __, 2004, between the Federated Trust and the
Golden Oak(R) Trust (the "Agreement").  This opinion is rendered to you pursuant
to paragraph 8.5 of the Agreement.

     We have  reviewed and relied upon the  Registration  Statement on Form N-14
(the "Registration Statement") filed with the Securities and Exchange Commission
(the  "Commission")  in connection  with the  Reorganization,  the  certificates
provided to us by the Federated  Trust and the Golden Oak(R) Trust in connection
with the rendering of this opinion,  and such other documents and instruments as
we have deemed necessary for the purposes of this opinion.

     Based  upon  and  subject  to  the   foregoing,   and  assuming   that  the
Reorganization  will take place as  described  in the  Agreement,  we are of the
opinion that, for federal income tax purposes:  (a)The  Acquired Fund's transfer
of all of its assets to the Acquiring Fund solely in exchange for Acquiring Fund
Shares and the  distribution  of the Acquiring  Fund Shares to the Acquired Fund
Shareholders   in   liquidation   of  the  Acquired   Fund  will   constitute  a
"reorganization"  within  the  meaning of  Section  368(a) of the Code,  and the
Acquiring Fund and the Acquired Fund each will be "a party to a  reorganization"
within the meaning of Section 368(b) of the Code;

     (b)No  gain or loss  will be  recognized  by the  Acquiring  Fund  upon the
receipt of the assets of the Acquired  Fund solely in exchange for the Acquiring
Fund Shares;

     (c)No  gain or loss  will be  recognized  by the  Acquired  Fund  upon  the
transfer  of its  assets  to the  Acquiring  Fund  solely  in  exchange  for the
Acquiring Fund Shares or upon the distribution  (whether actual or constructive)
of the Acquiring Fund Shares to the Acquired Fund  Shareholders  in exchange for
their shares of stock in the Acquired Fund (the "Acquired Fund Shares");

     (d)No gain or loss will be recognized by any Acquired Fund Shareholder upon
the exchange of its Acquired Fund Shares for Acquiring Fund Shares;

     (e)The  tax  basis of the  assets  of the  Acquired  Fund  acquired  by the
Acquiring  Fund will be the same as the tax basis of such assets to the Acquired
Fund immediately prior to the Reorganization;

     (f)The  aggregate tax basis of the Acquiring  Fund Shares  received by each
Acquired Fund Shareholder pursuant to the Reorganization will be the same as the
aggregate tax basis of the Acquired Fund Shares held by it immediately  prior to
the Reorganization;

     (g)The  holding  period of the assets of the Acquired  Fund in the hands of
the Acquiring Fund will include the period during which such assets were held by
the Acquired Fund; and

     (h)The  holding  period  of the  Acquiring  Fund  Shares  received  by each
Acquired Fund Shareholder pursuant to the Reorganization will include the period
during which it held the Acquired Fund Shares exchanged  therefor  (provided the
Acquired  Fund  Shares  were  held  as  capital   assets  on  the  date  of  the
Reorganization).


     Notwithstanding  anything herein to the contrary,  we express no opinion as
to the effect of the  Reorganization on the Acquiring Fund, the Acquired Fund or
any Acquired Fund  Shareholder  with respect to any asset as to which unrealized
gain or loss is required to be recognized for federal income tax purposes at the
end of a  taxable  year (or on the  termination  or  transfer  thereof)  under a
mark-to-market system of accounting.

     This opinion is expressed as of the date hereof and is based upon the Code,
Treasury regulations  promulgated  thereunder,  administrative  positions of the
Internal Revenue Service (the "Service"),  and judicial decisions,  all of which
are subject to change either  prospectively  or  retroactively.  There can be no
assurance  that  changes in the law will not take place which  could  affect the
opinions  expressed  herein or that  contrary  positions may not be taken by the
Service.  We disclaim  any  undertaking  to advise you with respect to any event
subsequent to the date hereof.

     The  opinions  contained  herein  are  limited to those  matters  expressly
covered;  no opinion is to be  implied  in  respect  of any other  matter.  This
opinion  is  addressed  solely  to you and may not be  relied  upon by any other
person without our prior written  consent.  We hereby consent to the filing of a
copy of this  opinion  with the  Commission  as an exhibit  to the  Registration
Statement.

                                    Very truly yours,