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<PAGE> PAGE 2
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SIGNATURE HENRY GABBAY
TITLE TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000902719
<NAME> THE BLACKROCK FLORIDA INVESTMENT QUALITY MUNICIPAL TRUST INC.
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> Oct-31-1997
<PERIOD-END> Oct-31-1997
<INVESTMENTS-AT-COST> 23,181,833
<INVESTMENTS-AT-VALUE> 24,896,479
<RECEIVABLES> 370,331
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<OVERDISTRIBUTION-GAINS> 0
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<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,403,057
<OTHER-INCOME> 0
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<APPREC-INCREASE-CURRENT> 677,912
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<PER-SHARE-NAV-BEGIN> 14.15
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<PER-SHARE-DIVIDEND> (1.00)
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</TABLE>
For the annual period ended October 31,
1997
File number 811-7666
SUB-ITEM 77C
Submission of Matters to a Vote of Security Holders
An Annual Meeting of Shareholders was
held on April 15, 1997. At such meeting
the shareholders approved the selection
of auditors and the election of
directors. Pursuant to Instruction 2
to this Sub-Item, information as to
these matters has not been included in
this Attachment.
- 2 -
To the Shareholders and Board of
Directors of
The BlackRock Florida Investment
Quality Municipal Trust, Inc.:
In planning and performing our audit
of the financial statements of The
BlackRock Florida Investment Quality
Municipal Trust, Inc. (the "Trust")
for the year ended October 31, 1997
(on which we have issued our report
dated December 12, 1997), we
considered its internal control
structure, including procedures for
safeguarding securities, in order to
determine our auditing procedures for
the purpose of expressing our opinion
on the financial statements and to
comply with the requirements of
Form N-SAR, not to provide assurance
on the internal control structure.
The management of the Trust is
responsible for establishing and
maintaining an internal control
structure. In fulfilling this
responsibility, estimates and
judgments by management are required
to assess the expected benefits and
related costs of internal control
structure policies and procedures.
Two of the objectives of an internal
control structure are to provide
management with reasonable, but not
absolute, assurance that assets are
safeguarded against loss from
unauthorized use or disposition and
that transactions are executed in
accordance with management's
authorization and recorded properly
to permit preparation of financial
statements in conformity with
generally accepted accounting
principles.
Because of inherent limitations in
any internal control structure,
errors or irregularities may occur
and not be detected. Also,
projection of any evaluation of the
structure to future periods is
subject to the risk that it may
become inadequate because of changes
in conditions or that the
effectiveness of the design and
operation may deteriorate.
Our consideration of the internal
control structure would not
necessarily disclose all matters in
the internal control structure that
might be material weaknesses under
standards established by the American
Institute of Certified Public
Accountants. A material weakness is
a condition in which the design or
operation of the specific internal
control structure elements does not
reduce to a relatively low level the
risk that errors or irregularities in
amounts that would be material in
relation to the financial statements
being audited may occur and not be
detected within a timely period by
employees in the normal course of
performing their assigned functions.
However, we noted no matters
involving the internal control
structure, including procedures for
safeguarding securities, that we
consider to be material weaknesses as
defined above as of October 31,
1997.
This report is intended solely for
the information and use of management
and the Securities and Exchange
Commission.
DELOITTE & TOUCHE LLP
Boston, Massachusetts
December 12, 1997
