Document:

<PAGE>
                                                                   Exhibit 10.56

                     LEASE TERMINATION, SETTLEMENT AGREEMENT
                               AND MUTUAL RELEASE

         THIS LEASE TERMINATION, SETTLEMENT AGREEMENT AND MUTUAL RELEASE is
dated as of September 30, 2002 and is entered into by and between Pac Court
Associates, L.P., a California limited partnership ("Landlord"), and Integrated
Information Systems, Inc., a Delaware corporation ("Tenant").

                                    RECITALS:

         A. Landlord is the "Landlord", and Tenant is the "Tenant", under that
certain Office Lease ("Lease") dated May 16, 2000 with respect to those certain
premises ("Premises") located at Suite 300, 114 Pacifica, Suite 300, Irvine,
California. Defined terms used herein shall have the meaning given them in the
Lease unless otherwise defined herein.

         B. The Lease requires the monthly payment of rent and related sums by
Tenant to Landlord. As of the date hereof, Tenant has not paid the Monthly Rent
and other charges due for the months of December, 2001 through and including
September, 2002. Tenant also vacated the Premises in December of 2001.

         C. In December, 2001, Landlord drew down a $300,000.00 Letter of Credit
pursuant to the terms of Rider No. 1 to the Lease. Landlord has also made demand
upon Tenant for the restoration of the Letter of Credit or for payment in the
amount of the delinquent rents and charges. No payment or replacement of the
letter of credit has been made. Additionally, Landlord has applied the Security
Deposit, in the amount of $31,160.75, to Tenant's obligations under the Lease.

         D. As a result of the foregoing, Landlord declared a forfeiture of the
Lease and Tenant agreed to voluntarily surrender possession of the Premises
rather than have Landlord proceed with an unlawful detainer action against
Tenant to regain legal possession of the Premises.

         E. Pursuant to an Agreement Re: Lease dated as of January 31, 2002,
Tenant surrendered the Premises to Landlord and Landlord and Tenant terminated
all possessory and use rights associated with possession of the Premises
(including without limitation, Premises and Building access, parking rights and
tenant signage rights).

         F. Landlord and Tenant acknowledge that Tenant is going through a
negotiated restructuring ("Restructuring") with its lenders and creditors,
regarding its vacated facilities, leases, equipment leases, and certain other
obligations and an effort to obtain funding to settle such obligations.

<PAGE>

         G. This Lease Termination, Settlement Agreement and Mutual Release
settlement is expressly conditioned upon the approval by Tenant's Board of
Directors, completion of accounts receivable backed financing, and acceptance of
settlement offers by all of the major creditors and obligors of Tenant
("Approvals").

         H. Landlord and Tenant desire to terminate the Lease as well as
settling any and all claims, known or unknown, demands, actions, and potential
lawsuits of any kind or nature between them, based in whole or in any part upon
any contracts, agreements, promises, leases, facts, conduct, activities,
transactions, events, or occurrences, known or unknown, which have or allegedly
have existed, occurred, happened, arisen, or transpired from the beginning of
time to the date of this Agreement.

         NOW, THEREFORE, in consideration of the foregoing, of certain payments
described below, the mutual undertakings of the parties, and the terms,
conditions, warranties, mutual general releases and mutual covenants not to sue
hereinafter contained, the sufficiency and receipt of which are hereby
acknowledged, the parties agree as follows:

         1. LEASE TERMINATION. Immediately upon the execution of this Agreement
by both parties, the Lease is terminated and of no further force and effect for
any purpose. The parties mutually release each other from any and all further
obligations of any sort or nature whatsoever under the Lease. Tenant authorizes
Landlord to remove and discard any installed systems/equipment still remaining
in the Premises.

         2. CONSIDERATION.  Subject only to Landlord and Tenant executing this
Agreement and the Approvals being obtained, Tenant shall pay Landlord a total
of $51,880 at the close of the Restructuring.  Tenant anticipates closing the
Restructuring on or before October 15, 2002.

         3. RELEASE OF LANDLORD. Subject only to the obligations set forth in
this Agreement and the Approvals being obtained, Tenant hereby releases,
acquits, remises and forever discharges Landlord and its directors, officers,
agents, assigns, representatives, attorneys, heirs, executors, administrators,
beneficiaries, and all persons acting by, through, under or in concert with
Landlord, or any of them of and from any and all claims, demands, rights,
liabilities, losses, judgments, actions, causes of action, suits, obligations,
or liability of any kind or nature (including but not limited to, bad faith and
punitive damages) that have arisen or occurred or that may arise or occur at any
time in the future based in whole or in any part upon any promises, agreements,
contracts, leases, facts, conduct, activities, transactions, events or
occurrences, known or unknown, which have or allegedly have existed, occurred,
happened, arisen or transpired from the beginning of time to the date of this
Agreement, except for any obligations, liabilities or losses which are based on
this Settlement Agreement.

         4. RELEASE OF TENANT. Subject only to the obligations set forth in this
Agreement, including without limitation the receipt by Landlord of the amount
specified in Section 2 above in good funds, and the Approvals being obtained,
Landlord hereby releases, acquits, remises and forever discharges Tenant and its
directors, officers, agents, assigns, representatives, attorneys,

                                       2
<PAGE>

heirs, executors, administrators, beneficiaries, and all persons acting by,
through, under or in concert with Tenant, or any of them of and from any and all
claims, demands, rights, liabilities, losses, judgments, actions, causes of
action, suits, obligations, or liability of any kind or nature (including but
not limited to, attorneys' fees, expenses of litigation, bad faith, and punitive
damages) that have arisen or occurred or that may arise or occur at any time in
the future based in whole or in any part upon any promises, agreements,
contracts, leases, facts, conduct, activities, transactions, events or
occurrences, known or unknown, which have or allegedly have existed, occurred,
happened, arisen or transpired from the beginning of time to the date of this
Agreement, except for (a) any obligations, liabilities or losses which are based
on this Settlement Agreement, and (b) any indemnity or hold harmless agreement
set forth in the Lease arising out of a third party claim.

         Notwithstanding any other provision of this Agreement to the contrary,
should Tenant file for bankruptcy under any chapter of the United States
Bankruptcy Code which results in Landlord not receiving or retaining the $51,880
to be paid under Section 2 of this Agreement, or any other sum Landlord has
received from Tenant, then the releases contained in Sections 3 and 4 of this
Agreement shall be cancelled and of no force or effect, and Landlord shall be
permitted to file its proof of claim in bankruptcy court for all sums of money,
minus any sum of money actually received and retained by Landlord, to which
Landlord would be entitled pursuant to the Lease and under the Bankruptcy Code.

         5. COVENANT NOT TO SUE. Except for the exclusion at the end of Section
3 and the exclusions set forth at the end of the first paragraph of Section 4,
and subject only to the obligations set forth in this Agreement and the
Approvals being obtained, Tenant on the one hand and Landlord on the other hand
do hereby mutually covenant not to institute any suit or action at law or in
equity against each other in any way related to the Lease ("Subject Matter of
the Mutual Covenants"). These mutual covenants not to sue may be plead and
treated as a complete defense to any action or proceeding that may be brought,
instituted, or taken by any party to this Agreement against the other party with
regard to the Subject Matter of the Mutual Covenants, and they shall forever be
a complete bar to the commencement or prosecution of any such action,
litigation, arbitration, or proceeding with respect to the Subject Matter of the
Mutual Covenants.

         6. CONFIDENTIALITY. The parties to this Agreement agree to maintain in
confidence the terms and conditions of this Agreement, except that they may
disclose the same as needed among themselves, their counsel and accountants and
as required by any regulatory or taxing authority or the rules of any stock
exchange, and in response to lawful process. This confidentiality provision
shall not apply to any legal process brought by any of the parties to this
Agreement to enforce any of the obligations under it.

         7. NO ADMISSION. The parties agree and understand that the
above-recited considerations are being paid or given in full accord,
satisfaction, and compromise of disputed claims and that the payments and
considerations are not admissions of liability by any party, but are being made
for the purpose of avoiding disputes and litigation between the parties hereto
with respect to the Lease.

                                       3
<PAGE>

         8. ENTIRE AGREEMENT. This Agreement and its exhibits contain the entire
agreement between the parties and fully supersedes any and all prior agreements
or understandings between the parties with respect to the subject matter, and
any and all prior discussions, negotiations, communications, commitments, and
understandings related hereto are merged herein. This Agreement is executed on
behalf of and is intended to bind the parties and their respective successors
and assigns.

         9. REMEDIES. Except as expressly stated herein, this Agreement is fully
effective upon execution by and delivery to the parties. Except as expressly
stated herein, it is not dependent upon and may not be defeated by any further
performance or non-performance of any obligations, conditions, covenants,
promises, warranties or similar undertakings to be performed or not to be
performed in the future by the parties. Except as expressly stated herein, the
breach of any such duties or this Agreement shall give rise only to a cause of
action for that breach and shall not reinstate the claims released under this
Agreement.

         10. MODIFICATION. This Agreement may not be amended, modified, or
terminated, in whole or in part, except by a written agreement executed by the
parties.

         11. VOLUNTARY. This Agreement is executed voluntarily by each of the
parties after full disclosure hereto without any duress or undue influence on
the part of or on behalf of any of them. The parties hereto acknowledge that
they have been represented, or have had the opportunity to be represented, in
the negotiations for and in the performance of this Agreement by counsel of
their own choice; they have read this Agreement; they have had it fully
explained to them by such counsel or have had such opportunity; and they are
fully aware of the contents of this Agreement and of its legal effect.

         12. GOVERNING LAW. The validity, performance, construction,
interpretation, enforcement, and effect of this Agreement shall be governed by
and enforced in accordance with the substantive laws of the State of California.

         13. NOTICES. All notices required to be given to Tenant or to Landlord
shall be given in writing, delivered by United States mail, effective as of
third day after the date of mailing, at the addresses set forth herein below:

             LANDLORD:                     c/o Banyan Pacific, LLC
                                           114 Pacifica, Suite 230
                                           Irvine, California 92618-3318
                                           Attn: George Ceithaml

             TENANT:                       Integrated Information Systems, Inc.
                                           1480 South Hohokam Drive
                                           Tempe, Arizona 85281
                                           Attention: General Counsel

                                       4
<PAGE>

         14. ATTORNEYS' FEES. The Parties each agree that in the event of any
controversy, claim or dispute based upon, arising out of, or relating to this
Agreement, the prevailing party in such controversy, claim or dispute shall be
entitled to recover its actual attorneys' fees, court costs and expenses which
are reasonably incurred from the losing party.

         15. MISCELLANEOUS.

                 a. If any provision of this Agreement is adjudged illegal,
invalid, or unenforceable, the entire Agreement shall not be construed to be
invalid, and all remaining terms or provisions shall continue in full force and
effect.

                 b. This Agreement may be executed in several counterparts,
each of which shall be deemed to be an original and all of which, taken
together, shall constitute one and the same instrument.

                 c. The Agreement is a fully-negotiated document, and it shall
be deemed to have been jointly drafted by the parties. It shall not be more
strictly construed against any party as the draftsman.

                 d. Each party hereby represents and warrants that it has not
assigned or otherwise transferred any claim(s) which otherwise would be released
under this Agreement.

                 e. The parties to this Agreement hereby swear and affirm on
oath that all representations of fact appearing in them are true and correct to
the best of their knowledge.

                 f. Except as expressly stated in this Agreement, each party
shall be responsible for its own fees and expenses, including attorney's fees.

                 g. The parties hereto warrant that those persons signing on
behalf of the corporate entities have the requisite corporate authority to
execute and deliver this Agreement on behalf of the parties hereto.

                 h. The parties to this Agreement shall, without delay, execute
any documents, perform all acts, and do all things necessary to effectuate any
of the terms and provisions of this Agreement.

           * * * REMAINDER OF THIS PAGE LEFT BLANK INTENTIONALLY * * *

                                       5
<PAGE>

         IN WITNESS WHEREOF, the parties shave executed this Agreement as of the
date first set forth above.

"TENANT"                       INTEGRATED INFORMATION SYSTEMS, INC., a Delaware
                               corporation

                               By: /s/ Mark N. Rogers
                               Its: Senior Vice President, General Counsel

 "LANDLORD"                    PAC COURT ASSOCIATES, L.P., a California limited
                               partnership

                               By: Banyan Pacific, LLC, a California limited
                                   liability company, general partner

                                   By:  Banyan Realty Group, LLC, a California
                                        limited liability company, managing
                                        member

                                        By: /s/ George W. Ceithaml
                                            George W. Ceithaml, Trustee of the
                                            Ceithaml Living Trust #2 dated
                                            April 15, 1989, managing member

                                       6<PAGE>

                                                                   Exhibit 10.57

Civil Court of the City of New York
County of New York: Non-Housing Part 52

30 Broad Street Associates, LLC,
         Petitioner-Landlord

against

Integrated Information Systems, Inc.
         Respondent-Tenant

STIPULATION OF SETTLEMENT

         IT IS HEREBY STIPULATED AND AGREED by and between the parties herein
and their respective counsel that the above-captioned proceeding is hereby
settled upon the following terms and conditions:

         1. Respondent Integrated Information Systems, Inc. ("Respondent")
hereby appears in this proceeding by its attorneys Gallet Dreyer & Berkey, LLP
and admits and concedes the jurisdiction of this Court over this person and
waives any personal jurisdiction defenses it may have with respect to the
instant proceeding.

         2. Subject to the terms and conditions of this Stipulation, the
Respondent surrenders all right title and interest to the premises effective
upon the execution of this Stipulation. Respondent waives any and all rights to
occupy the premises, effective immediately. Petitioner may take immediate
possession of the premises.

         3. Respondent represents that it is in sole possession of the premises
and that there are no other persons or entities in possession of said premises.

         4. Respondent agrees that any property remaining in the premises shall
be deemed abandoned by it, and be removed and disposed of by the Petitioner.
Respondent further agrees that Petitioner shall bear no liability for any such
removal or disposal of property which is deemed abandoned.

         5. In consideration for the Respondent vacating and surrendering
possession of the premises, and being released from all liability under the
lease, the Respondent agrees to pay the following sums to the Petitioner:

         (a) Effective immediately, the Respondent surrenders all right title
and interest in the security deposit under the terms of the lease dated April
24, 1997 between the Respondent and Petitioner's predecessor, Petitioner may
take such security and co-mingle it with its general funds subject to its sole
discretion; and

         (b) The Respondent shall pay the Petitioner the sum, of $59,831.00 on
or before October 15, 2002.

         6. The terms and conditions of this Stipulation are subject to: (a) the
approval of the Board of Directors of Respondent, acceptance of a restructuring
proposal by all major creditors of Respondent and Respondent's completion of
accounts receivable backed financing paid to Petitioner as set forth above.

<PAGE>

         7. In the event that the Respondent has not received the requisite
approvals and consents by October 15, 2002, or does not pay the sums set forth
in Paragraph 5(b), then this proceeding shall be restored to the Part 52
calendar (on five (5) days notice by either counsel) for the purposes of
adjudicating all claims for rent and additional rent due under the lease,
without prejudice to any rights, defenses or claims that either party may have,
including those set forth n Respondent's Answer.

         8. For the valuable consideration set forth above and subject the terms
herein, each side waives and releases any and all claims each has against the
other relating to the Respondent's occupancy of the premises from the beginning
of time to the date of this Stipulation, except for the obligations set forth
herein.

         9. It is specifically understood and agreed by and between the parties,
that the within Stipulation is the result of extensive negotiations between the
parties. It is understood and agreed that both parties shall be deemed to have
drawn these documents in order to avoid any negative inference by any court as
against the preparer of the document.

         10. Except as otherwise provided in this Stipulation no subsequent
alteration, amendment, change or addition to this Stipulation shall be binding
upon Petitioner and Respondent, unless in willing arid signed by the party
against whom enforcement of the alteration, amendment, change or addition is
sought.

         11. This Stipulation shall be binding upon the respective parties,
their heirs, assigns, executors, administrators and successors-in-interest to
their Property.

         12. Facsimile signatures shall be deemed originals herein.

         13. This stipulation may be executed in one or more counterparts, each
of which shall be deemed an original, but all of which, together, shall
constitute one and the same instrument.

New York, New York
September 20, 2002

Beldin, Burden Wenig & Goldman             Gallet Dreyer & Berkey, LLC
Attorneys for Petitioner                   Attorneys for Respondent

By: /s/ Joseph Burden                      By: /s/ Beatrice Lesser

30 Broad Street Associates, LLC            Integrated Information Systems, Inc.
By: Seavest 30 Broad, LLC, Agent           Respondent
By: Seavest 30 Broad, Inc.

By: /s/ Richard Segal                      By: /s/ Mark N. Rogers
         Richard Segal, President                  Mark N. Rogers, Senior Vice
                                                   President and General Counsel

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00045-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00045-of-00352.parquet"}]]