Document:

<PAGE>
                                                                   EXHIBIT 10.58

                                   INVISA INC.
                               2003 INCENTIVE PLAN
                       NONQUALIFIED STOCK OPTION AGREEMENT

Option Agreement Number:                    N-001

Date of Grant/Award:                        May 13, 2003

Name of Optionee:                           Joseph F. Movizzo

Optionee's Social Security Number:          ###-##-####

Initial Vesting Date:                       June 30, 2003

Initial Exercise Date:                      June 30, 2003

Expiration Date:                            May 12, 2010 (the "Option Term")

        1. Dated as of the above-stated Date of Grant/Award (the "Grant Date") a
Stock Option (the "Option") is hereby granted to the above-named Optionee
pursuant to the Invisa, Inc. 2003 Incentive Plan (the "Plan"). The Award of this
Option conveys to the Participant the right to purchase from Invisa, Inc. (the
"Company") up to Eighty Thousand (80,000) shares of Stock (the "Option Shares")
under the Plan at an exercise price of $3.00 per share. The Option awarded
hereunder is intended to be a nonqualified stock option subject upon its
exercise to treatment, for tax purposes, under Section 83 of the Internal
Revenue Code, and is specifically not intended to be treated as an Incentive
Stock Option as such term is defined under Section 422 of the Internal Revenue
Code.

        2. Except as specifically provided herein, the rights of the Optionee,
or of any other person entitled to exercise the Option, are governed by the
terms and provisions of the Plan. The Option is granted pursuant to the terms of
the Plan, which is incorporated herein by reference, and the Option shall in all
respects be interpreted in accordance with the Plan. The Company shall interpret
and construe the Plan and this Option Agreement with respect to any issue
arising thereunder or hereunder, and such interpretations and determinations by
the Company shall be conclusive and will bind the parties hereto and any other
person claiming an interest hereunder.

        3. To the extent not previously exercised, the Option and all rights
with respect thereto, shall terminate and become null and void when the Option
Term expires.

        4. Following any termination of Service with respect to the Optionee,
the Option shall be exercisable only during the following timeframes:

           (a) DISABILITY. If the Optionee's Service terminates because of the
Optionee becomes disabled, the Option, to the extent unexercised and exercisable
on the date on which Service thus terminated, may be exercised at any time
during the twelve (12) month period immediately following the date on which the
Optionee's Service thus terminated, but in no event any later than the date the
Option Term expires.

<PAGE>
                                                                               2

           (b) DEATH. If Service terminates because the Optionee dies, the
Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service thus terminated, may be exercised at any time during the
twelve (12) month period immediately following the date on which the Optionee's
Service thus terminated, but in no event any later than the date the Option Term
expires. The Optionee's Service shall be deemed to have terminated on account of
the Optionee's death if the Optionee dies within three (3) months of the
Optionee's termination of Service for any other reason.

           (c) OTHER TERMINATION OF SERVICE. If the Optionee's Service
terminates for reasons other than those specifically enumerated, to the extent
the Option remains unexercised and exercisable by the Optionee on the date on
which the Optionee's Service thus terminated, the Option may be exercised at any
time during the three (3) month period immediately following the date on which
the Optionee's Service thus terminated, but in no event any later than the date
the Option Term expires.

        5. Following the Initial Exercise Date, but subject to such further
limitations provided for herein as may apply, the Option shall become
exercisable as to all or any part of the Option Shares ("Vested Shares") awarded
in accordance with the following Vested Ratio schedule:

<TABLE>
<CAPTION>
          Number of Shares of Stock                       Vesting Date
          -------------------------                       ------------
<S>                                                    <C>
                     5,000                                 June 30, 2003
                    10,000                             September 30, 2003
                    15,000                              December 31, 2003
                    20,000                               March 31, 2004
                    25,000                                June 30, 2004
                    30,000                             September 30, 2004
                    35,000                              December 31, 2004
                    40,000                               March 31, 2005
                    45,000                                June 30, 2005
                    50,000                             September 30, 2005
                    55,000                              December 31, 2005
                    60,000                               March 31, 2006
                    65,000                                June 30, 2006
                    70,000                             September 30, 2006
                    75,000                              December 31, 2006
                    80,000                               March 31, 2007
</TABLE>

        There shall be no proportionate or partial vesting in the periods prior
to each Vesting Date, and all vesting shall occur only on the appropriate
Vesting Date, except that in the event of a Change in Control, this Option shall
be deemed fully vested.

        6. The Option may be exercised with respect to all or any part of the
number of Vested Shares by the giving of written notice ("Notice") of the
Optionee's intent to exercise to the Company at least five days prior to the
date on which exercise is to occur. The Notice shall specify the exercise date
and the number of Option Shares as to which the Option is to be exercised. Full
payment of the Option exercise price by any of the means of consideration
provided for under the Plan shall be made on or before the exercise date
specified in the Notice. Such full payment having occurred on or before the

<PAGE>
                                                                               3

exercise date specified in the Notice, or as soon thereafter as is practicable,
the Company shall cause to be delivered to the Optionee a certificate or
certificates for the Option Shares then being purchased. If the Optionee fails
to pay for any of the Option Shares specified in the Notice, or fails to accept
delivery of Option Shares, the Optionee's right to purchase such Option Shares
may be terminated by the Company.

        7. During the Optionee's lifetime, the Option granted hereunder shall be
exercisable only by the Optionee or by any guardian or legal representative of
the Optionee, and the Option shall not be transferable except, in the case of
the death of the Optionee, by will or by the laws of descent and distribution,
nor shall the Option be subject to attachment, execution or other similar
process.

        8. The Company may unilaterally amend the Option Award at any time if
the Company determines, in its sole discretion, that amendment is necessary or
advisable in light of any applicable addition to or change in the Internal
Revenue Code, any regulations issued thereunder, or any federal or state
securities law or other applicable law or regulation.

        9. Until the date a Stock certificate is issued to an Optionee, an
Optionee shall have no rights as a stockholder with respect to the shares of
Stock subject to Award under this ISO Agreement, and no adjustments shall be
made for dividends of any kind or nature, distributions, or other rights for
which the record date is prior to the date such Stock certificate is issued.

        10. The Optionee acknowledges having received and read a copy of the
Plan and this Agreement and agrees to comply with all laws, rules and
regulations applicable to the Award and to the sale or other disposition of the
Stock of the Company received.

        11. In the event the Optionee should cease to be employed by or to
provide Services to the Company, the Company hereby reserves a right to
repurchase from Optionee, at its sole discretion, any or all shares issued to
Optionee under the Plan which have been outstanding in excess of six months.
Company is to pay to Optionee under such repurchase the Fair Market Value of the
shares on the date of such repurchase and Optionee will, from that point onward,
have no further shareholder rights with respect to those shares. The Company
hereby reserves a right of first refusal on all the awarded shares which have
been outstanding in excess of six months. During this time, prior to selling any
shares, the Optionee must notify the Company, in writing, of the terms of the
transaction in which the Optionee proposes to sell the shares. Such notice shall
be supported by a bona fide formal letter of arrangement.

        The bona fide formal letter of arrangement must include (i) all of the
terms of the transaction, (ii) a description of any financing arrangements
related to the transaction, and (iii) full disclosure of all parties, whether
agent or principal, who are interested in the transaction.

        The Company shall have sixty (60) days to determine if it or other
stockholders in the Company will purchase the shares. The Company shall respond
by the sixtieth (60th) day after receipt of the Optionee's notice or forfeit its
rights under this paragraph.

<PAGE>
                                                                               4

If the Company decides that neither it nor any other stockholders in the Company
shall purchase the shares, the Optionee must engage in the transaction as
described in the notice provided to the Company within sixty (60) days;
otherwise, the Company's first refusal right shall again be applicable to any
subsequently proposed sale of the shares.

        12. Any notice to the Company provided for in this Agreement shall be
addressed to it in care of its Secretary at its executive offices located at
4400 Independence Court, Sarasota, Florida 34234, and any notice to the Optionee
shall be addressed to the Optionee at the address currently shown on the payroll
records of the Company. Any notice shall be deemed duly given if and when
properly addressed and posted by registered or certified mail, postage prepaid.

        IN WITNESS WHEREOF, Invisa, Inc. has caused its duly authorized officers
to execute this nonqualified Stock Option Agreement, and the Optionee has placed
his or her signature hereon, effective as of the Grant Date.

INVISA, INC.

Attest:

By:      /s/ Stephen A. Michael
    --------------------------------
Title:   President

ACCEPTED AND AGREED TO:

By:      /s/ Joseph F. Movizzo
    --------------------------------
         Joseph F. Movizzo, Optionee

<PAGE>

                           LETTER OF INVESTMENT INTENT

Invisa, Inc.
4400 Independence Court
Sarasota, FL  34234

Dear Corporate Personnel:

         In connection with the issuance to me of shares of Common Stock
("Shares") of Invisa, Inc. ("Company") which I may purchase under that certain
Stock Option granted to me on May 13, 2003 to which this Letter of Investment
Intent is attached ("Option"), I represent the following:

         The Shares are being acquired by me for investment and not with a view
to, or for resale in connection with, any distribution of those Shares.

         I intend to hold the Shares issued to me for investment for my own
account and I do not presently intend to dispose of all or any part of those
Shares.

         I understand that the Shares issued to me will not have been registered
under the Securities Act of 1933, as amended (the "Act'), by reason of a
specific exemption under the provisions of the Act.

         I understand that: the Company has no obligation to me to register any
or all the Shares under the Act for distribution.

         I understand and accept that an investment in the Company involves a
high degree of risk and is only suitable for investors willing and able to
accept the long-term and non-transferable nature of the investment and the
potential risk that the entire amount invested may be lost.

         I have engaged an investor representative or I am a sophisticated
businessperson and investor and have the experience and knowledge necessary to
enable me to evaluate the risks and merits involved in the purchase of the
Company's stock.

         Because of my or my investor representative's business knowledge and
experience, I do not require a formal disclosure document, prospectus or private
placement memorandum in connection with the purchase of the Company's stock.

<PAGE>

         I or my investor representative are relying upon our own independent
investigation in connection with the purchase of the Company's stock. In
connection therewith, I have had access to all books and financial records of
the Company, all materials, contracts and documents relating to the Company, and
the right to ask questions of officers, directors, consultants and other parties
associated with the Company.

         I or my investor representative have sufficient knowledge and
experience in financial and business matters to evaluate the potential risk of
this investment and that I have been afforded access to all information
concerning the Company that I have reasonably requested.

         I have received the following right of rescission disclosure from the
Company:

              THE SECURITIES OFFERED HEREBY HAVE NOT BEEN REGISTERED UNDER THE
              FLORIDA SECURITIES ACT. EACH OFFEREE WHO IS A FLORIDA RESIDENT
              SHOULD BE AWARE THAT SECTION 517.061(11)(a)5 OF THE FLORIDA
              SECURITIES ACT PROVIDES AS FOLLOWS: "WHEN SALES ARE MADE TO FIVE
              OR MORE PERSONS IN THIS STATE, ANY SALE IN THIS STATE MADE
              PURSUANT TO THIS SUBSECTION IS VOIDABLE BY THE PURCHASER IN SUCH
              SALE EITHER WITHIN 3 DAYS AFTER THE FIRST TENDER OF CONSIDERATION
              IS MADE BY SUCH PURCHASER TO THE ISSUER, AN AGENT OF THE ISSUER,
              OR AN ESCROW AGENT OR WITHIN 3 DAYS AFTER THE AVAILABILITY OF THAT
              PRIVILEGE IS COMMUNICATED TO SUCH PURCHASER, WHICHEVER OCCURS
              LATER."

I agree as follows:

         In the event of an Initial Public Offering of the Company's stock, the
Shares issued to me shall be subject to any Lock-Up Agreement agreed to by the
Company and imposed by the underwriter upon the holders of the Company's stock.
I agree to enter and execute any such documents as may be reasonably necessary
to effectuate such Lock-Up Agreement required by the underwriter engaged by the
Company. I further agree that my failure to execute such Lock-Up Agreement
within twenty days of tender of such Lock-Up Agreement to me shall entitle the
Company to repurchase my Shares for the purchase price I paid per share.

         The Shares may not be sold, assigned, transferred, conveyed, pledged,
or hypothecated to any party without, at the Company's option, an opinion from
securities counsel for the Company or counsel for me if acceptable to the
Company that such transfer or conveyance does not violate federal or applicable
state securities laws or in the alternative, a Registration Statement is in
effect with the Securities and Exchange Commission and applicable state
securities departments covering said conveyance.

         The following legends shall be placed on the certificate or
certificates delivered to me or any substitute therefor:

"THE SHARES OF STOCK (THE "SHARES") EVIDENCED BY THIS CERTIFICATE ARE SUBJECT TO
CERTAIN RESTRICTIONS ON TRANSFER, RIGHT OF REPURCHASE, AND LOCK-UP PROVISIONS
(COLLECTIVELY THE "RESTRICTIONS") CONTAINED IN AN AGREEMENT ENTERED INTO BY THE
CORPORATION AND THE NAMED HOLDER OF THIS CERTIFICATE ("AGREEMENT"). THE SHARES
MAY NOT BE SOLD, ASSIGNED, TRANSFERRED, CONVEYED, PLEDGED OR HYPOTHECATED TO ANY
PARTY EXCEPT IN COMPLIANCE WITH THE RESTRICTIONS CONTAINED IN THE AGREEMENT. A
COPY OF THE RESTRICTIONS CONTAINED IN THE AGREEMENT IS AVAILABLE FROM THE
CORPORATION WITHOUT CHARGE UPON REQUEST.

<PAGE>

THE SHARES OF STOCK (THE "SHARES") EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT") OR ANY STATE
SECURITIES LAW. NO RESALES, PLEDGES, HYPOTHECATIONS OR OTHER TRANSFERS OF THE
SHARES EVIDENCED BY THIS CERTIFICATE SHALL BE MADE AT ANY TIME WHATSOEVER,
EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT AND ANY
APPLICABLE STATE SECURITIES LAWS OR UPON THE ISSUANCE OF A FAVORABLE OPINION OF
THE CORPORATION'S LEGAL COUNSEL OR OF LEGAL COUNSEL ACCEPTABLE TO THE
CORPORATION THAT THE RESALE, PLEDGE, HYPOTHECATION OR OTHER TRANSFER OF SUCH
SHARES SHALL NOT BE IN VIOLATION OF THE ACT, OR ANY STATE SECURITIES ACT."

         The Company may place a stop-transfer order with the Company's transfer
agent prohibiting transfer of the Shares until the above conditions and terms
have been fulfilled.

         The Company's obligation to issue shares to me under the Option is
contingent upon my signing and delivering to the Company this Letter of
Investment Intent simultaneously with the purchase price for the shares.

         I understand and agree that my representations and warranties and
agreements in this Letter of Investment Intent shall survive the closing of the
share purchase and issuance transactions between me and the Company resulting
from my exercise(s) of the Option.

Very truly yours,                          ACCEPTED:
                                           Invisa, Inc.

                                           By:
--------------------------------               -----------------------------<PAGE>
                                                                   EXHIBIT 10.59

                              CONSULTING AGREEMENT

         This Agreement made this 6th day of March, 2003, by and between
Crescent Fund, Inc., a Texas corporation, whose address is 67 Wall Street, 22nd
Floor, New York, New York 10005, hereinafter referred to as "CRESCENT" or
"Consultant" and Invisa, Inc., a Nevada corporation, its agents, successors or
assigns, hereinafter referred to as "INVISA" or "Client" or "Company", whose
address is 4400 Independence Court, Sarasota, Florida 34234.

         Whereas Consultant is in the business of providing management
consulting services to businesses in an effort to obtain capital from third
parties for business use, including equipment leasing, purchase order and/or
contract financing, factoring and financing for land and buildings utilizing
instruments of debt and/or equity and whereas Client desires to retain
Consultant for the following purposes:

         Institutional investor relations services and to attempt to arrange
financing for the purpose of working capital.

         For and in consideration of mutual benefits, detriments, and promises,
and the cross considerations hereinafter set forth, the adequacy of which is
hereby acknowledged, the parties hereto, CRESCENT and INVISA, collectively "THE
PARTIES", hereby covenant and agree as follows:

1.                Services

                  a. CRESCENT is hereby engaged to provide Public Relations and
market support services including serving as an investment banking liaison,
introducing and presenting the Company to securities brokerage firms and
institutional investors, obtaining write ups about the company and acting as an
institutional public relations consultant for a six month period from the date
hereof. Under the direction of the Company, Consultant shall perform its
services in coordination with G.M. Capital Partners, the Company's
international investor relations consultant and Hawk Associates, the Company's
domestic investor relations consultant.

                  b. CRESCENT is hereby engaged by INVISA to provide capital
funding services including serving as an investment banking liaison, and acting
as capital consultant for a six month period from the date hereof. CRESCENT
shall contact institutional investors, arrange presentation of the Company,
assist in restructuring INVISA'S business plan for presentation, and arrange
conferences with capital sources.

                  c. CRESCENT is further engaged to provide capital structure
consulting to include working capital, equipment financing, consulting services
to INVISA for a six month period from the date hereof.

2.                Compensation

Consulting Agreement - Page 1 of 6

<PAGE>

                  a. INVISA hereby agrees during the term of this agreement,
subject to termination as hereinafter provided, to pay CRESCENT for the services
set forth in Paragraph 1, the following non-refundable retainer items:

                     1.

                           A. The shares of the company's common stock described
in subparagraphs B, C, D and E below (the "Shares"). For a period of twelve
months from the date hereof, Consultant shall not directly or indirectly sale,
assign, transfer or otherwise dispose of any of the Shares for consideration
less than $4.10 cash per share. Consultant agrees to provide the Company with
monthly verification of its ownership position in the Company's stock and the
terms of any sale or assignment of the Shares. Consultant may assign the Shares
provided the assignee consents in writing to comply with the conditions of this
agreement relating to said Shares;

                           B. 7,143 shares of restricted stock with registration
rights (or in the Company's discretion $25,000 in cash) shall be delivered to
Consultant on April 5, 2003;

                           C. 7,142 shares of restricted stock with registration
rights shares rights (or in the Company's discretion $25,000 in cash) shall be
delivered to Consultant on May 5, 2003;

                           D. 7,142 shares of restricted stock with registration
rights (or in the Company's discretion $25,000 in cash) shall be delivered on
June 5, 2003; and

                           E. 7,142 shares of restricted stock with registration
rights (or in the Company's discretion $25,000 in cash) shall be delivered on
July 5, 2003.

                  b. Recognizing that CRESCENT has extensive sources of venture
capital, coupled with brokerage industry contacts, INVISA hereby agrees to pay
CRESCENT for the consulting services set forth in Paragraph 1 in the form of a
success fee of seven percent (7%) in cash of the amount of cash financing raised
as a result of investors Introduced by Consultant during the term of this
Agreement ("Finders Fee"). The Company has sole discretion to accept or reject
any investor or any proposed financing Introduced by Consultant and the Finders
Fee shall only be paid for cash financing accepted by the Company in the
exercise of its discretion. In the event that other nonaffiliated parties are
entitled to compensation or fees as a result of any proposed financing
Introduced by Consultant, the Finders Fee payable to Consultant hereunder shall
be automatically reduced so that the aggregate fees/compensation to all parties
including Consultant do not exceed twelve per cent of the cash funding received
by the Company from the financing introduced by Consultant. The Company is not a
party to any agreement that would reduce a Finder's Fee due to Consultant for
any party or transaction Introduced by Consultant hereunder. Such Finders Fees
shall be due as the time the Company receives the cash funds from

Consulting Agreement - Page 2 of 6

<PAGE>

any such financing in which CRESCENT has acted as the introducing person. Should
the Company wish to engage Consultant to assist in any merger or acquisition
project, the parties will exercise good faith to negotiate a separate
compensation/fee to cover such project which may include a success fee and,
pending such written arrangement, Consultant shall not be authorized to
represent the Company or be compensated by the Company for introductions which
result in any merger or acquisition.

         INVISA shall pay all out-of-pocket expenses related to the services set
forth in Paragraph 1 above, subject to written budget approval by INVISA prior
to incurring the expense.

                  d. The Company agrees, represents and warrants hereby that it
shall not circumvent Consultant with respect to any banking or lending
institution, investment bank, trust, corporation, individual or investor
Introduced by Consultant to the Company nor with respect to any financing
transaction Introduced by Consultant pursuant to the terms of this Agreement for
a period of one (1) year from the date of execution of this Agreement. For
Consultant to be deemed to have Introduced a potential investor or financing
transaction under this Agreement including but not limited to Paragraphs 2(b)
and 2(d), Consultant must submit to the Company a written record the name of the
party or transaction to be Introduced by it and the Company shall have one (1)
business day to reject the Introduction in writing by informing Consultant that
the company has or is already seeking an existing relationship or introduction
to the party ("Introduced by Consultant"). In the absence of a written rejection
by the Company, Consultant shall be deemed to be the Introducer of the recorded
party or transaction for purposes of this Agreement. Notwithstanding the
forgoing, because the Company anticipates that it may establish relationships
with numerous securities broker-dealers in the future, parties Introduced by
Consultant will not include any securities broker-dealers registered with the
NASD unless the Company expressly consents thereto in writing.

3.       Termination of Agreement

         This Consulting Agreement may not be terminated by either party prior
to the expiration of the term provided herein above, except as follows:

                  a. Either party may terminate on ten (10) days written notice
after April 6, 2003;

                  b. Upon the bankruptcy or liquidation of the other party,
whether voluntary or involuntary;

                  c. Upon the other party taking the benefit of any insolvency
law;

                  d. Upon the other party having or applying for a receiver
appointed for either party; and/or

                  e. Mutual consent of the parties.

Consulting Agreement - Page 3 of 6

<PAGE>

4.       Notices

         All notices hereunder shall be in writing and addressed to the party at
the address herein set forth, or at such other address which notice pursuant to
this section may be given, and shall be given by either certified mail, express
mail or other overnight courier service. Notices shall be deemed given upon the
earlier of actual receipt or three (3) business days after being mailed or
delivered to such courier service. Any notices to be given hereunder shall be
effective if executed by and/or sent by the attorneys for THE PARTIES giving
such notice and, in connection therewith, THE PARTIES and their respective
counsel agree in giving such notice such counsel may communicate directly in
writing with such party to the extent necessary to give such notice.

5.       Attorney Fees

         In the event either party is in default of the terms or conditions of
this Consulting Agreement and legal action is initiated or suit be entered as a
result of such default, the prevailing party shall be entitled to recover all
costs incurred as a result of such default including reasonable attorneys fees,
expenses and court costs through trial, appeal and to final disposition.

6.       Time is of the Essence

         Time is hereby expressly made of the essence of this Consulting
Agreement with respect to the performance by THE PARTIES of their respective
obligations hereunder.

7.       Inurement

         This Consulting Agreement shall inure to the benefit of and be binding
upon THE PARTIES hereto and their respective heirs, executors, administrators,
personal representatives, successors, and assigns.

8.       Entire Agreement

         This Consulting Agreement contains the entire agreement of THE PARTIES.
It is declared by THE PARTIES that there are no other oral or written agreements
or understanding between them affecting this Agreement. This Agreement
supercedes all previous agreements.

9.       Amendments

         This Agreement may be modified or amended provided such modifications
or amendments are mutually agreed upon by and between THE PARTIES hereto and
that said modifications or amendments are made only by an instrument in writing
signed by THE PARTIES.

Consulting Agreement - Page 4 of 6

<PAGE>

10.      Waivers

         No waiver of any provision or condition of this Agreement shall be
valid unless executed in writing and signed by the party to be bound thereby,
and then only to the extent specified in such waiver. No waiver of any provision
or condition of this Agreement shall be construed as a waiver of any other
provision or condition of this Agreement, and no present waiver of any provision
or condition of this Agreement shall be construed as a future waiver of such
provision or condition.

11.      Non-Waiver

         The failure of either party, at any time, to require any such
performance by any other party shall not be construed as a waiver of such right
to require such performance, and shall in no way affect such party's right to
require such performance and shall in no way affect such party's right
subsequently to require a full performance hereunder.

12.      Construction of Agreement

         Each party and its counsel have participated fully in the review and
revision of this Agreement. Any rule of construction to the effect that
ambiguities are to be resolved against the drafting party shall not apply in the
interpretation of this Agreement.

13.      Applicable Law

         THIS AGREEMENT IS EXECUTED PURSUANT TO AND SHALL BE INTERPRETED AND
GOVERNED FOR ALL PURPOSES BY THE LAWS OF THE STATE OF TEXAS FOR WHICH THE COURTS
IN DALLAS COUNTY, TEXAS SHALL HAVE JURISDICTION WITHOUT GIVING EFFECT TO THE
CHOICE OR LAWS OR CONFLICT OF LAWS RULES THEREOF OR OF ANY STATE.

14.      Counterparts

         This Agreement may be executed in a number of identical counterparts.
Each such counterpart is deemed an original for all purposes and all such
counterparts shall, collectively, constitute one agreement, but, in making proof
of this Agreement, it shall not be necessary to produce or account for more than
one counterpart.

15.      Facsimile

         A facsimile copy of this Agreement is acceptable.

Consulting Agreement - Page 5 of 6

<PAGE>

16.      Acceptance of Agreement.

         Unless both parties have signed this Agreement within ten (10) business
days of the date listed above, this Agreement shall be deemed automatically
withdrawn and terminated.

         IN WITNESS WHEREOF, THE PARTIES have set forth their hands and seal in
execution of this Consulting Agreement this 6th day of March, 2003, by and
between:

CRESCENT FUND, INC.                          INVISA, INC.,
a Texas corporation                          a Nevada corporation

By:        /s/ Melanie Gee              By:    /s/ Stephen A. Michael, President
         -----------------------             -----------------------------------
         Melanie Gee, President              Steve Michael, President CEO

Date:         March 14, 2003            Date:               3-18-03
      ---------------------------            -----------------------------------

Consulting Agreement - Page 6 of 6

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