<PAGE>   1
                                                                   Exhibit 10.11



                            LEASE FOR BRANCH BANK

         This Lease Agreement ("Agreement") made and entered into this 14th
day of May, 1997, by and between ARTHUR K. KNUDSEN, JR. and CHRISTIE K.
KNUDSEN, hereinafter referred to as "Landlord", and SOUTH FLORIDA BANK, a state
banking association, hereinafter called "Tenant".


                              W I T N E S S E T H:
         WHEREAS, Landlord and Tenant wish to enter into an agreement wherein
the Landlord leases to the Tenant real property for use as a branch bank
location, ("premises"), and

         WHEREAS, Landlord and Tenant desire to set forth in writing the terms
and conditions of their agreement regarding the lease of the Premises.

         NOW, THEREFORE, for and in consideration of the above-stated premises
and other valuable considerations, the Landlord and Tenant agree as follows:

         1.      PREMISES.

         The Landlord leases to the Tenant for its exclusive use the tract of
land situate in Lee County, State of Florida having the street address of 15280
McGregor Blvd., Fort Myers, Florida, together with the existing improvements
thereon, said Premises being outlined on the plot plan and legal description
("Exhibit A") attached hereto and by reference made a part hereof.  The
Premises include all of the Landlord's easements or other rights to utilize
driveways and streets existing now or in the future, located on Landlord's
adjacent land, reasonably required for driveways and





                                       1
<PAGE>   2

approaches to and from abutting highways and parking lots for the use and
benefit herein of the leased Premises and the improvements thereon.

         2.      TERM.

         The initial term of the Lease shall be for a period of five (5) years,
commencing July 1, 1997 and ending at 11:59 p.m. June 30, 2002.

         3.      OPTION TO EXTEND.

         Landlord grants to Tenant the option, if Tenant is not in default
under the terms of this Agreement, to renew this Agreement for two consecutive
periods of five (5) years each under the same terms and conditions herein
contained.  Tenant shall give the Landlord three (3) months advance written
notice of its election to exercise such options prior to the end of the initial
term hereof, or of any extended term.

         4.      RENT.

         During the initial year of the base five (5) year term of this Lease,
the Tenant shall pay to Landlord as rent for the herein leased premises the
following sums:

                 a.  On the first day of July, 1997 and the first day of each
month thereafter up to but not including November 1, 1997, the rental amount of
$1,250.00, plus sales tax, shall be due.

                 b.  Beginning on November 1, 1997 and then on the first day of
each and every month thereafter for the remainder of the first year of this
Lease, a rental in the amount of $2,500.00 per month, plus sales tax, shall be
due. 




                                       2
<PAGE>   3

         The base rental for the second, third, fourth and fifth years of the 
base term of this Lease plus any extension thereof, shall be not less than
$2,500 per month plus sales tax.  However, commencing with the second year of
the base term of this Lease, the monthly rental under this Agreement, shall be
annually increased by three percent (3%) per annum during such base term.

         5.      ESCALATED RENTAL FOR RENEWAL TERMS.

         In the event Tenant renews for an additional term or terms, the rent
for the first year of a renewal term shall not increase above the rent for the
immediately preceding year.  The rent for subsequent years during a renewal
term shall be annually increased by three percent (3%) per annum.

         6.      MCGREGOR CONSTRUCTION PERIOD.

         The rental for the Premises shall be reduced by 50% during
construction activity on McGregor Boulevard improvements adjacent or near the
Premises or on the new driveway to be constructed by Landlord over the
currently existing grassy area between the paved portion of the leased premises
and Wendy's leased premises lying adjacent on the Westerly side (as is shown
upon the attached Exhibit A).  The reduced rental period shall begin when the
construction interferes with access to the Tenant's business, as determined in
the reasonable judgment of Tenant.  In no event shall the reduced rental period
exceed 6 months.





                                       3
<PAGE>   4

         7.      NET LEASE.

         This Agreement is a "net lease" and, except as herein provided, Tenant
shall pay Landlord the net annual rent, free of any charges, assessments,
impositions or deductions.

         8.      USE OF PREMISES.

         The Tenant intends to use the Premises for a bank branch facility,
with a drive-thru teller facility ("Intended Use") and such other lawful
purposes as are consistent with the Tenant's corporate charter and the rules
and regulations of the regulatory authorities which have jurisdiction over the
Tenant and the Premises.

         9.      MAINTENANCE.

         Landlord shall be responsible for repair to or replacement of any
basic structural components of the building and the roof.  With regard to the
HVAC, plumbing, sprinklers, and electrical systems, Tenant shall pay for any
repairs or replacement expenses up to the sum of $250.00 per a particular
repair or replacement problem, but in no event to exceed a cumulative expense
of $2,000 per calendar year.  The Landlord shall pay the amount of any such
particular bill for any particular problem which is in excess of $250.00, or
which exceeds the yearly cumulative limit.

         Tenant shall pay for utilities, land maintenance, janitorial service,
trash disposal, regular pest control, and repair and maintenance of the
interior of the building, drive-thru facility, and parking lot (but not for
costs or repairs related to the construction described in 6(a) above) as may be
necessary to 




                                       4
<PAGE>   5

maintain said premises in condition similar to its present condition.  However,
Landlord shall be obligated to replace any portion of the electric, plumbing,
or air conditions systems which fail so that replacement of all or any portion
is required to restore said systems to normal operation provided that if such
expenses is less than $250.00, such expense shall be paid by Tenant, subject to
its yearly cumulative limit.  Landlord shall be responsible for all termite
treatment and eradication.

         10.     ASSIGNMENT.

         With the prior consent of the Landlord, which consent will not be
unreasonably delayed or withheld, the Tenant may assign this Agreement or
sublet the Premises provided the Premises shall be used for purposes similar to
Tenant's Intended Use or other lawful purpose.  An assignment or subletting
with the consent of the Landlord shall not release the Tenant from its primary
obligation under this Agreement.

         11.     TAXES.

         During the term of this Agreement, and for such further time as the
Tenant or any person claiming under it shall hold the Premises or any part
thereof, Landlord shall pay and discharge the annual installment of all real
estate taxes charged or imposed upon the Premises, or upon any of the
improvements erected thereon.  Tenant shall pay any and all taxes imposed upon
its personal property located in and about the premises and any other taxes
imposed upon it as an entity including sales taxes on the rent and shall pay
all utility charges.




                                       5
<PAGE>   6

         12.     TITLE STATUS.  

         The Landlord represents that they own the Premises in fee simple, 
subject only to easements and restrictions that will not interfere with the
Tenant's Intended Use of the Premises and that they have the full right, power
and authority to enter into this Agreement for the term granted.

         Tenant shall have a priority interest in the Premises described herein
subject only to exceptions or qualifications set forth in and permitted by this
Agreement.

         13.     EMINENT DOMAIN.

                 a.  In the event all of the Premises, or such a portion
thereof as will make the Premises unsuitable for the Intended Use, is condemned
for any public or quasi-public use or purpose by a legally constituted
authority, then in either of such events, the Tenant may terminate this
Agreement on the date when possession is taken by such public or quasi-public
authority.  Upon termination the rent and other Tenant obligations shall be
prorated as of the date when possession is taken.

                 b.  In the event only a portion of the Premises is taken, such
that the remaining portion is still suitable for the purposes set forth herein,
then and in that event, the rent and other charges provided by this Agreement
shall be adjusted to reasonably reflect the decrease, if any, in utilization of
the Premises by the Tenant.  If the Landlord and the Tenant cannot agree, with
regard to the decrease in rent and other charges, the issue regarding rental
adjustment shall be decided by arbitration through the




                                       6
<PAGE>   7

utilization of and in accordance with the rules of the American Arbitration
Association.  The decision of the arbitrator may include any apportionment of
arbitration proceeding costs, including reasonable attorneys' fees, and shall
be enforceable by courts of appropriate jurisdiction.

                 c.  In the event of a total taking of the demised premises by
either condemnation or the threat thereof, the Landlord shall be entitled to
all of any award for land and/or Landlord's building and improvements taken,
except to the extent that Landlord's award is increased by Tenant's leasehold
improvements.  The Tenant shall retain its right to claim against the condemnor
for any actual damages it suffers caused by such taking.

         In the event of any partial taking of the demised Premises by either
condemnation or the threat thereof, the Landlord shall be entitled to any award
for land and Landlord's improvements actually taken, except to the extent that
Landlord's award is increased by Tenant's leasehold improvements.  Any award
for severance damages to the remainder shall also inure exclusively to the
Landlord; provided, however, that the Landlord shall use all of the portion of
the severance damages award which has been awarded to cover a cost to cure in
order to attempt to remedy the injury caused to the remainder to the fullest
extent possible or to otherwise improve the Premises.  The Tenant shall retain
the right to claim against the condemnor any entitlement to business damages
and/or special damages it actually suffers by said partial taking.




                                       7
<PAGE>   8

                 d.  Notwithstanding the above, if an eminent domain 
proceeding results in the loss of parking spaces at the Premises, Tenant shall
receive the damages attributable to such loss. Further, Landlord shall not
settle any eminent domain proceeding related to the taking of any portion of
the Premises without obtaining the consent of Tenant.

         14.     ATTORNMENT AND SUBORDINATION.

         Tenant agrees to subordinate this Agreement and its leasehold interest
to the lien of any deeds of trust, mortgages of the lien resulting from any
other method of financing or refinancing placed upon the Premises by the
Landlord with a reputable lending institution authorized to do business in the
State of Florida, to any advances made thereunder and to all other amounts
secured thereby, and all renewals, replacements, modifications, consolidations
and extensions thereof.  Provided, however, such subordinations shall only be
effective if the Landlord first obtains an agreement for the benefit of the
Tenant from the proposed mortgagee, beneficiary or secured party to the effect
that upon obtaining title to the Premises through foreclosure, conveyance in
lieu of foreclosure or otherwise, such mortgagee, beneficiary or third party
shall be substituted for the Landlord hereunder, and such mortgagee,
beneficiary or secured party and the Tenant shall be in the relationship of
landlord tenant under the provisions of this Agreement, and this Agreement
shall remain in full force and effect.





                                       8
<PAGE>   9


         15.     INDEMNIFICATION.

         Each party agrees to indemnify and save harmless the other from and
against any and all liability, liens, claims, damages, expenses, fees, fines,
penalties, suits proceedings, actions and causes of action of any kind and
nature arising or growing out of or in any way connected with the party's
ownership, use, occupancy, management or control of the Premises and the
improvements thereon, or which may be the result of any breach, violation or
non-performance of any covenant, condition or agreement contained in the
Agreement.  The Tenant will at its expense defend any and all actions, suits or
proceedings which may be brought against the Landlord or in which the Landlord
may be impleaded with others in any such action or proceedings arising out of
the use or occupancy of the Premises and the improvements by the Tenant, and
the Tenant will satisfy, pay and discharge any and all judgments, orders and
decrees that may be entered against the Landlord in such action or proceeding
to which the Landlord may be a party.  Provided, however, nothing herein
contained shall be construed or considered to require the Tenant to indemnify
or save the Landlord harmless as the result of any negligence or breach of
duty, either express or implied, or as a matter of contract or by law, by the
Landlord or any agent, employee, licensee or other representative of the
Landlord.

         16.     CONSTRUCTION LIENS.

         Any consents Landlord gives to Tenant to allow Tenant to construct
building improvements on the Premises or to make any 






                                      9
<PAGE>   10

alterations or additions thereto shall not be deemed improvements required by
an agreement between Landlord and Tenant, within the meaning of the Florida
Construction Lien Law. All contractors, subcontractors, mechanics, laborers,
materialmen and others who perform any work, labor or services, or furnish any
materials or otherwise participate in any improvements to the Premises, and who
are not acting pursuant to a direct contract with Landlord, are hereby given
notice that Tenant is not authorized to subject Landlord's interest in the
Premises to any claim for construction, mechanics, laborers, materialmen's
liens, or other liens, and all persons dealing directly or indirectly with
Tenant may not look to the Premises as security for payment.

         If any construction or other liens shall be filed against the Premises
or any improvements thereon by reason of or arising out of any labor or
material furnished or alleged to have been furnished or to be furnished to or
for the Tenant at the Premises or by reason of any charges, alterations, or
additions or costs or expenses thereof, or any contract relating thereto, the
Tenant shall, within 30 days after written notice from Landlord, either pay or
bond the same or procure the discharge thereof in such manner as may be
provided by law.  The Tenant shall also defend on behalf of the Landlord at the
Tenant's sole cost and expense, any action, suit or proceedings which may be
brought thereon or for the enforcement of such lien or liens, and the Tenant
shall pay any damage and discharge any judgment entered thereon and same
harmless the Landlord from any claim or damage resulting therefrom.





                                       10
<PAGE>   11

         17.     INSURANCE ON BUILDING AND OTHER IMPROVEMENTS AND DAMAGE TO OR
DESTRUCTION OF IMPROVEMENTS.  

         Landlord shall carry appropriate hazard insurance coverage on the
building including the drive-thru facility. If the building or drive-thru
facility shall be rendered unsuitable for the intended use by fire or other
casualty to the extent that Tenant is not able to reasonably conduct business on
the premises, Landlord shall cause the damage to be repaired as soon as possible
and in any event within a period of 120 days after the damage is incurred.  The
rental obligation of the Tenant shall abate during the period of time at takes
to repair the damage.

         18.     OTHER INSURANCE.
 
         Tenant will, at all times during the term hereof (at its own expense),
purchase, maintain, and keep in force for the mutual benefit of Landlord and
Tenant, general public liability insurance against claims for personal injury,
death or property damage occurring in, on or about the Premises, or sidewalks
adjacent to the Premises, arising from or related to the acts or failures to
act of Tenant's employees, agents, licensees or invitees.  The insurance shall
afford protection to a cumulative single limit of the minimum amount of One
Million Dollars ($1,000,000.00) for any one occurrence.  The insurance policies
shall provide and require that the insurers give each party at least thirty
(30) days' notice prior to cancellation.  The Landlord understands the Tenant
may satisfy its insurance requirements by use of a blanket policy insuring a
number of the Tenant's branch locations.  Tenant shall




                                       11
<PAGE>   12

deliver to Landlord Certificates of Insurance for any insurance policies
required by this Lease upon request, as evidence of the compliance with the
terms and provisions herein contained.  Each of the insurance policies shall be
issued by a financially responsible (Best Rating of A+XII) company or companies
authorized to do business in the State of Florida.

         19.     LANDLORD'S COVENANT OF QUIET ENJOYMENT.

         Landlord covenant and warrant that so long as Tenant is not in default
under the conditions and during the term of this Agreement and any extension of
said term, Tenant's quiet and peaceable enjoyment of the Premises shall not be
disturbed or interfered with by any one claiming by, through or under Landlord.

         20.     PERSONAL PROPERTY AND FIXTURES.

         Notwithstanding anything to the contrary herein contained, the Tenant
shall, at the termination of the lease term, by the lapse of time or otherwise,
remove its personal property and banking fixtures from the Premises.

         During the term, the Tenant shall retain title to all improvements
placed on the Premises by the Tenant.  Upon the expiration of the term, the
building improvements (except the modular facility, removable personal property
and banking fixtures), shall remain on and become a part of the Premises, and
shall be owned by the Landlord.  

         21.     NOTICE OF LEASE.  

         At the option of the Tenant, a short form of lease shall be prepared 
in recordable form and recorded in the Public Records of




                                       12
<PAGE>   13

Lee County.  The short form lease shall give notice of the Tenant's interest in
the Premises and of its rights under this Agreement, and hereto and made a part
hereof by this reference.

         22.     SIGNS.

         Subject to the reasonable approval of the Landlord, the Tenant shall
have the right to place on, in and about the Premises such signs, logos and
other Tenant identification and direction markers as may be deemed necessary by
the Tenant for the proper identification of the Tenant and the operation of
banking business on the Premises.  Landlord agrees not to unreasonably delay or
withhold approval of such signs and further agree the use of the South Florida
Bank logo (or any future substitution thereof) is approved.  Tenant shall be
entitled to signage at least equivalent in size and number to that used by
SunTrust during its occupancy of the Premises.

         23.     ALTERATIONS.

         Tenant may, upon consent by Landlord, which consent shall not be
unreasonably withheld, make such alterations, additions or improvements to the
Premises, or any part thereof, as the Tenant deems reasonably necessary for a
full utilization of the Premises for the Intended Use. Provided, however, such 
alterations, additions or improvements shall not materially impair or interfere 
with the Landlord's ability to utilize the Landlord's remaining contiguous
property, if any. Provided further, Tenant shall not make structural or other
alterations or any alterations affecting





                                       13
<PAGE>   14

the facade of the building improvements without Landlord's consent, which
consent shall not be unreasonably withheld.

         24.     DEFAULT.

         The following events shall be Tenant defaults:

         Failure to pay the rent promptly when the same shall become due and
payable.  

         The Tenant shall materially fail to fully and promptly perform or 
comply with any term, provision, covenant or agreement of this Agreement other
than the payment of rent.

         The Tenant shall become insolvent or shall make a transfer in fraud of
creditors, or shall make an assignment for the benefit of creditors.

         A receiver or trustee or liquidator shall be appointed for all or
substantially all the assets of Tenant.  

         25.     DEFAULT REMEDIES.  

         In the event of a material default by the Tenant, and upon the failure 
of the Tenant to substantially cure any such default within the times permitted,
the Landlord shall have the option of terminating this Agreement by written
notice of the election of such option to the Tenant, such termination to be
effective thirty (30) days after receipt of such written notice by the Tenant.
Upon termination of this Agreement as provided in this paragraph, the Landlord
may thereafter peaceably resume possession of the Premises, or may institute
such legal action as may be appropriate to resume possession of the Premises.
Upon termination of this Agreement, the Landlord may relet the Premises, in
whole or in 



                                       14
<PAGE>   15

part, and may apply any rent therefrom first to the payment of any loss,
cost or expense, including reasonable attorneys' fees incurred by the Landlord
by reason of the Tenant's default, and the balance of any such rent shall be
applied to the remaining sums then due from the Tenant to the Landlord.  The
Landlord shall have such further rights and remedies as may be available to the
Landlord with respect to the collection of rent or possession of the Premises
as may be provided under the laws of the State of Florida.

         26.     PERFORMANCE BY NON-DEFAULTING PARTY.

         In the event either party fails to perform under the provisions of
this Agreement after notice and reasonable time for performance, the other
party may, at its option, take whatever reasonable action is deemed necessary
to cure the failure to perform, and the defaulting party agrees to pay the
non-defaulting party for all damages, costs, fees, expenses, judgments, charges
and reasonable attorneys' fees incurred by the non-defaulting party in
exercising the option herein granted.  In the event the Tenant is the
non-defaulting party and the Tenant exercises its option to perform for and on
behalf of the Landlord, the Tenant may set off against its rental obligations
any amounts, costs, fees, expenses, charges and reasonable attorneys' fees
incurred by the Tenant in connection with the exercise of its option to perform
for and on behalf of the Landlord. Tenant's right of performance for and on
behalf of Landlord includes the right to cure any asserted default or mortgages
encumbering the Premises, and upon such curative acts




                                       15
<PAGE>   16

the Tenant will be subrogated to the mortgagee's rights and remedies.

         27.     ATTORNEYS' FEES.

         The defaulting party agrees to pay to the nondefaulting party any
costs and reasonable attorneys' fees, including any appellate attorneys' fees,
which may be incurred by the nondefaulting party in the enforcement of any of
the terms and conditions of this Agreement.

         28.  TENANT REVIEW OF LANDLORD IMPROVEMENTS.

         Landlord shall not make alterations to the Premises, including the
driveways and parking areas, without first obtaining Tenant's consent, which
consent shall not be unreasonably delayed or withheld.

         29.     LANDLORD GUARANTEE OF IMPROVEMENTS AND ACCESS.

         The new driveway improvements described in Section 6 shall be promptly
constructed by Landlord, at its expense, to coordinate with planned
improvements and changes to McGregor Boulevard.  Landlord represents that the
new driveway improvements will be promptly completed.  Further, Landlord
represents that the driveway improvements will be located on the Premises, or
if on other property, the Landlord will guarantee necessary rights of ingress
and egress over such property, obtain satisfactory documentation of such rights
of the Tenant, and indemnify Tenant for any loss or expense incurred due to
Landlord's failure to provide such rights to Tenant.






                                       16
<PAGE>   17



         IN WITNESS WHEREOF, the parties have hereunto set their hands and
seals, the day and year first above written.


Signed, Sealed and Delivered             LANDLORD:
In the Presence of:


/s/  Denise Guillemette                  /s/  Arthur K. Knudsen, Jr.
--------------------------------         ------------------------------------
1st Witness                              Arthur K. Knudsen, Jr.
Print Name: Denise Guillemette
           ---------------------

/s/ Carolyn Fox Lambert                  /s/ Christie K. Knudsen
--------------------------------         ------------------------------------
2nd Witness                              Christie K. Knudsen
Print Name: Carolyn Fox Lambert
           ---------------------

STATE OF FLORIDA
COUNTY OF LEE

         The foregoing instrument was acknowledged before me this 8th day of
May, 1997, by Arthur K. Knudsen, Jr. and Christie K. Knudsen, who are 
personally known to me or who have produced _________________________________
as identification.

                                            /s/ Carolyn Fox Lambert
                                            ----------------------------------
                                            Notary Public 
                                            Print Name: Carolyn Fox Lambert

                                                      [SEAL]   

                                            TENANT:

Signed, Sealed and Delivered                South Florida Bank
In the Presence of:

/s/ Suzanne F. Hughes                       By:  /s/ William Valenti
--------------------------------                -------------------------------
1st Witness                                     William Valenti, President
Print Name: Suzanne F. Hughes

/s/ Betty G. Kersten
--------------------------------
2nd Witness
Print Name: Betty G. Kersten





                                     17


<PAGE>   18

STATE OF FLORIDA
COUNTY OF LEE

         The foregoing instrument was acknowledged before me this 14th day of
May, 1997, by William Valenti, President of South Florida Bank, a State Banking
Association, on behalf of said bank, who is personally known to me or who has 
produced ________________________________________ as identification.


                                               /s/ Suzanne F. Hughes
                                               -----------------------------
                                               Notary Public 
                                               Print Name: Suzanne F. Hughes





                                       18
<PAGE>   19
                                  EXHIBIT "A"


The following described real property situate in Lee County, Florida:

Beginning at the Northwest corner of the South half of the Northeast quarter of
Section 31, Township 45 South, Range 24 East then run South along the center
line of said Section 31 a distance of 25 feet to the Southern boundary line of
the Iona Road right of way; then run East along the Southern boundary line of
the Iona Road right of way a distance of 600 feet more or less to the point of
intersection with the Westerly boundary line of the McGregor Boulevard right of
way and the point of beginning of the land herein leased; thence run
Southwesterly along the Westerly boundary line of the McGregor Boulevard right
of way a distance 320 feet; thence run Northwesterly at right angles to the
Westerly boundary line of the McGregor Boulevard road right of way a distance
of 140 feet; thence deflect to the right 20 degrees from the last mentioned
course and run a distance of 100 feet more or less to the Southern boundary
line of the Iona Road right of way; thence East along the Southern boundary
line of the Iona Road right of way a distance of 375 feet more or less to the
point of beginning of the land herein leased, LESS Road Rights-of-Way of Iona
Road and McGregor Boulevard as of the date of this Lease.




                                                  [MAP] 
<PAGE>   20







                                     [MAP]
<PAGE>   21

This instrument prepared by:
Garey F. Butler, Esq.
HUMPHREY & KNOTT, P.A.
1625 Hendry Street, Suite 301
Fort Myers, FL  33901
(941) 334-2722



                             MEMORANDUM OF LEASE

LANDLORD:        ARTHUR K. KNUDSEN, JR., and CHRISTIE K. KNUDSEN
                 Post Office Box 1470
                 Fort Myers, FL  33902

TENANT:          SOUTH FLORIDA BANK
                 2017 McGregor Boulevard
                 Fort Myers, FL  33901

         This memorandum acknowledges and incorporates by reference the terms
of that certain lease ("Lease") dated May 14, 1997, between Landlord and Tenant
in which the real property located at 15280 McGregor Boulevard, Fort Myers, and
more particularly described on attached Exhibit A is leased to Tenant.

         The initial term of the Lease begins July 1, 1997, and ends June 30,
2002.  Tenant may extend the Lease until June 30, 2012.


WITNESSES:                               LANDLORD:

/s/  Carolyn Fox Lambert                  /s/  Arthur K. Knudsen, Jr.
--------------------------------         ------------------------------------
1st Witness                              ARTHUR K. KNUDSEN, JR.
Print Name: Carolyn Fox Lambert
           ---------------------

/s/ Jacqueline K. Marable             
--------------------------------      
2nd Witness                           
Print Name: Jacqueline K. Marable
           ---------------------

/s/  Carolyn Fox Lambert                  /s/  Christie K. Knudsen
--------------------------------         ------------------------------------
1st Witness                              CHRISTIE K. KNUDSEN
Print Name: Carolyn Fox Lambert
           ---------------------

/s/ Jacqueline K. Marable                
--------------------------------       
2nd Witness                             
Print Name: Jacqueline K. Marable
           ---------------------
<PAGE>   22

STATE OF FLORIDA )
                 )
COUNTY OF LEE    )

         The foregoing instrument was acknowledged before me this 1st day of
July, 1997, by Arthur K. Knudsen, Jr., who is personally known to me or has
produced ______________________________________ as identification.


                                            /s/ Jacqueline K. Marable
                                            ----------------------------
                                            Notary Public 
                                            Print Name: Jacqueline K. Marable

                                                         [SEAL]

STATE OF FLORIDA )
                 )
COUNTY OF LEE    )

         The foregoing instrument was acknowledged before me this 1st day of
July, 1997, by Christie K. Knudsen, who is personally known to me or has
produced _____________________________________________ as identification.


                                            /s/ Jacqueline K. Marable
                                            ----------------------------
                                            Notary Public 
                                            Print Name: Jacqueline K. Marable

                                                         [SEAL]



WITNESSES:                                  TENANT:

/s/ Judith A. Bentley                       SOUTH FLORIDA BANK
------------------------------
1st Witness
Print Name: Judith A. Bentley               By: /s/ William Valenti
                                               ----------------------------
                                               William Valenti, President  
/s/ Sharon M. Landel 
------------------------------
2nd Witness
Print Name: Sharon M. Landel


STATE OF FLORIDA          )
                          )
COUNTY OF LEE             )

         The foregoing instrument was acknowledged before me this 14th day of
July, 1997, by William Valenti, President of South Florida Bank.  Mr. Valenti
is personally known to me or has produced ___________________________________
as identification.



                                            /s/ Betty G. Kersten
                                            ----------------------------
                                            Notary Public 
                                            Print Name: Betty G. Kersten

                                                         [SEAL]

<PAGE>   23
                                  EXHIBIT "A"


The following described real property situate in Lee County, Florida:

Beginning at the Northwest corner of the South half of the Northeast quarter of
Section 31, Township 45 South, Range 24 East then run South along the center
line of said Section 31 a distance of 25 feet to the Southern boundary line of
the Iona Road right of way; then run East along the Southern boundary line of
the Iona Road right of way a distance of 600 feet more or less to the point of
intersection with the Westerly boundary line of the McGregor Boulevard right of
way and the point of beginning of the land herein leased; thence run
Southwesterly along the Westerly boundary line of the McGregor Boulevard right
of way a distance 320 feet; thence run Northwesterly at right angles to the
Westerly boundary line of the McGregor Boulevard road right of way a distance
of 140 feet; thence deflect to the right 20 degrees from the last mentioned
course and run a distance of 100 feet more or less to the Southern boundary
line of the Iona Road right of way; thence East along the Southern boundary
line of the Iona Road right of way a distance of 375 feet more or less to the
point of beginning of the land herein leased, LESS Road Rights-of-Way of Iona
Road and McGregor Boulevard as of the date of this Lease.